dnsbl: src/dnsbl.cpp annotate

annotate src/dnsbl.cpp @ 418:ea4f86e2db42

Added tag stable-6-0-57 for changeset d1976e04f5ba

author	Carl Byington <carl@five-ten-sg.com>
date	Tue, 25 Apr 2017 21:57:42 -0700
parents	16451edcb962
children	91f2a127ec69

rev	line source
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1 /*
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	3 Copyright (c) 2013 Carl Byington - 510 Software Group, released under
152 c7fc218686f5 gpl3, block mail to recipients that cannot reply carl parents: 150 diff changeset	4 the GPL version 3 or any later version at your choice available at
c7fc218686f5 gpl3, block mail to recipients that cannot reply carl parents: 150 diff changeset	5 http://www.gnu.org/licenses/gpl-3.0.txt
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	6
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	7 Based on a sample milter Copyright (c) 2000-2003 Sendmail, Inc. and its
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	8 suppliers. Inspired by the DCC by Rhyolite Software
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	9
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	10 -b port The port used to talk to the dcc interface daemon
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	11 -r port The port used to talk to our internal dns resolver processes
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	12 -p port The port through which the MTA will connect to this milter.
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	13 -t sec The timeout value.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	14 -c Check the config, and print a copy to stdout. Don't start the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	15 milter or do anything with the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	16 -s Stress test by loading and deleting the current config in a loop.
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	17 -d level set the debug level
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	18 -e f\|t Print the results of looking up from address f and to address
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	19 t in the current config
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	20
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	21 */
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	22
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	23
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	24 // from sendmail sample
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	25 #include <sys/types.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	26 #include <sys/stat.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	27 #include <errno.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	28 #include <sysexits.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	29 #include <unistd.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	30
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	31 // needed for socket io
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	32 #include <sys/ioctl.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	33 #include <net/if.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	34 #include <arpa/inet.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	35 #include <netinet/in.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	36 #include <netinet/tcp.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	37 #include <netdb.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	38 #include <sys/socket.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	39 #include <sys/un.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	40
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	41 // needed for thread
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	42 #include <pthread.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	43
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	44 // needed for std c++ collections
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	45 #include <set>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	46 #include <map>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	47 #include <list>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	48
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	49 // for the dns resolver
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	50 #include <netinet/in.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	51 #include <arpa/nameser.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	52 #include <resolv.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	53
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	54 // misc stuff needed here
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	55 #include <ctype.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	56 #include <syslog.h>
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	57 #include <pwd.h>
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	58 #include <sys/wait.h> /* header for waitpid() and various macros */
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	59 #include <signal.h> /* header for signal functions */
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	60
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	61 #include "includes.h"
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	62
211 4db1457cd11a Extend auto-whitelisting when receiving mail even if the auto whitelist is specified in a parent context. Carl Byington <carl@five-ten-sg.com> parents: 203 diff changeset	63 #ifndef HAVE_DAEMON
4db1457cd11a Extend auto-whitelisting when receiving mail even if the auto whitelist is specified in a parent context. Carl Byington <carl@five-ten-sg.com> parents: 203 diff changeset	64 #include "daemon.h"
4db1457cd11a Extend auto-whitelisting when receiving mail even if the auto whitelist is specified in a parent context. Carl Byington <carl@five-ten-sg.com> parents: 203 diff changeset	65 #include "daemon.c"
4db1457cd11a Extend auto-whitelisting when receiving mail even if the auto whitelist is specified in a parent context. Carl Byington <carl@five-ten-sg.com> parents: 203 diff changeset	66 #endif
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	67
227 3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	68 #ifndef HAVE_MEMRCHR
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	69 void memrchr(const void a, int c, size_t len);
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	70 void memrchr(const void a, int c, size_t len) {
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	71 const unsigned char p = (const unsigned char )a;
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	72 for (p += len-1; (const void *)p >= a; p--)
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	73 if (*p == c)
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	74 return (void *)p;
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	75 return (void *)0;
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	76 }
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	77 #endif
3fee608becbc Fixes to compile on old systems without memrchr or string::clear(). Carl Byington <carl@five-ten-sg.com> parents: 225 diff changeset	78
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	79 extern "C" {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	80 sfsistat mlfi_connect(SMFICTX ctx, char hostname, _SOCK_ADDR *hostaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	81 sfsistat mlfi_helo(SMFICTX * ctx, char *helohost);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	82 sfsistat mlfi_envfrom(SMFICTX ctx, char *argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	83 sfsistat mlfi_envrcpt(SMFICTX ctx, char *argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	84 sfsistat mlfi_header(SMFICTX* ctx, char* headerf, char* headerv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	85 sfsistat mlfi_body(SMFICTX ctx, u_char data, size_t len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	86 sfsistat mlfi_eom(SMFICTX *ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	87 sfsistat mlfi_abort(SMFICTX *ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	88 sfsistat mlfi_close(SMFICTX *ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	89 void sig_chld(int signo);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	90 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	91
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	92 int debug_syslog = 0;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	93 bool syslog_opened = false;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	94 bool use_syslog = true; // false to printf
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	95 bool loader_run = true; // used to stop the config loader thread
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	96 CONFIG *config = NULL; // protected by the config_mutex
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	97 int generation = 0; // protected by the config_mutex
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	98 const int maxlen = 1000; // used for snprintf buffers
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	99 regex_t srs_pattern; // used to detect srs coding in mail addresses
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	100 regex_t prvs_pattern; // used to detect prvs coding in mail addresses
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	101 regex_t dkim_r_pattern; // used to detect dkim signatures authenticated by the upstream opendkim milter
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	102 regex_t dkim_s_pattern; // used to detect dkim signatures generated by the upstream opendkim milter
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	103 regex_t from_pattern; // used to extract the senders mail domain from the body from: header
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	104
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	105 pthread_mutex_t config_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	106 pthread_mutex_t syslog_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	107 pthread_mutex_t resolve_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	108 pthread_mutex_t fd_pool_mutex;
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	109 pthread_mutex_t rate_mutex;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	110
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	111 std::set<int> fd_pool;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	112 int NULL_SOCKET = -1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	113 const time_t ERROR_SOCKET_TIME = 60; // number of seconds between attempts to open a socket to the dns resolver process
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	114 const char *resolver_port = NULL; // unix domain socket to talk to the dns resolver process
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	115 int resolver_socket = NULL_SOCKET; // socket used to listen for resolver requests
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	116 const char *dccifd_port = NULL; // unix domain socket to talk to the dcc interface daemon
248 b0738685bf51 latest tld list; fix uninitialized variable Carl Byington <carl@five-ten-sg.com> parents: 246 diff changeset	117 time_t last_error_time = 0;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	118 int resolver_sock_count = 0; // protected with fd_pool_mutex
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	119 int resolver_pool_size = 0; // protected with fd_pool_mutex
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	120 rates rcpt_hourly_counts; // protected with rate_mutex
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	121 rates rcpt_daily_counts; // protected with rate_mutex
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	122 auth_addresses auth_hourly_addresses; // protected with rate_mutex
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	123 auth_addresses auth_daily_addresses; // protected with rate_mutex
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	124
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	125
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	126
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	127 ns_map::~ns_map() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	128 for (string_map::iterator i=ns_host.begin(); i!=ns_host.end(); i++) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	129 const char x = (i).first;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	130 const char y = (i).second;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	131 free((void*)x);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	132 free((void*)y);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	133 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	134 ns_ip.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	135 ns_host.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	136 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	137
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	138
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	139 void ns_map::add(const char name, const char refer) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	140 string_map::iterator i = ns_host.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	141 if (i != ns_host.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	142 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	143 char *y = strdup(refer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	144 ns_ip[x] = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	145 ns_host[x] = y;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	146
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	147 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	148
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	149 // packed structure to allow a single socket write to dump the
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	150 // length and the following answer. The packing attribute is gcc specific.
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	151 struct glommer {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	152 size_t length;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	153 #ifdef NS_PACKETSZ
386 e27e22f6a49a start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 385 diff changeset	154 u_char answer[NS_PACKETSZ*8]; // with a resolver, we return resolver answers
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	155 #else
252 836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	156 uint32_t answer; // without a resolver, we return a single ipv4 address in network byte order, 0 == no answer
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	157 #endif
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	158 } __attribute__ ((packed));
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	159
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	160
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	161 ////////////////////////////////////////////////
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	162 // helper to manipulate recipient counts
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	163 //
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	164 void incr_rcpt_count(const char *user, int &hourly, int &daily);
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	165 void incr_rcpt_count(const char *user, int &hourly, int &daily) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	166 pthread_mutex_lock(&rate_mutex);
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	167 rates::iterator i = rcpt_hourly_counts.find(user);
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	168 hourly = 1;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	169 if (i == rcpt_hourly_counts.end()) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	170 user = strdup(user);
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	171 rcpt_hourly_counts[user] = hourly;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	172 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	173 else {
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	174 hourly = ++((*i).second);
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	175 }
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	176
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	177 rates::iterator j = rcpt_daily_counts.find(user);
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	178 daily = 1;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	179 if (j == rcpt_daily_counts.end()) {
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	180 user = strdup(user);
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	181 rcpt_daily_counts[user] = daily;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	182 }
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	183 else {
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	184 daily = ++((*j).second);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	185 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	186 pthread_mutex_unlock(&rate_mutex);
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	187 }
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	188
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	189
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	190 void add_auth_address(const char *user, int &hourly, int &daily, uint32_t ip);
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	191 void add_auth_address(const char *user, int &hourly, int &daily, uint32_t ip) {
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	192 pthread_mutex_lock(&rate_mutex);
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	193 auth_addresses::iterator i = auth_hourly_addresses.find(user);
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	194 if (i == auth_hourly_addresses.end()) {
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	195 user = strdup(user);
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	196 auth_hourly_addresses[user] = new uint32_t_set;
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	197 auth_hourly_addresses[user]->insert(ip);
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	198 hourly = 1;
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	199 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	200 else {
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	201 uint32_t_set::iterator k = ((*i).second)->find(ip);
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	202 if (k == ((i).second)->end()) ((i).second)->insert(ip);
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	203 hourly = ((*i).second)->size();
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	204 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	205
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	206 auth_addresses::iterator j = auth_daily_addresses.find(user);
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	207 if (j == auth_daily_addresses.end()) {
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	208 user = strdup(user);
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	209 auth_daily_addresses[user] = new uint32_t_set;
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	210 auth_daily_addresses[user]->insert(ip);
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	211 daily = 1;
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	212 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	213 else {
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	214 uint32_t_set::iterator k = ((*j).second)->find(ip);
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	215 if (k == ((j).second)->end()) ((j).second)->insert(ip);
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	216 daily = ((*j).second)->size();
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	217 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	218 pthread_mutex_unlock(&rate_mutex);
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	219 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	220
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	221 ////////////////////////////////////////////////
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	222 // helper to discard the strings held by a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	223 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	224 void discard(context_map &cm);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	225 void discard(context_map &cm) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	226 for (context_map::iterator i=cm.begin(); i!=cm.end(); i++) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	227 const char x = (i).first;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	228 free((void*)x);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	229 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	230 cm.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	231 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	232
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	233
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	234 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	235 // helper to register a string in a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	236 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	237 void register_string(context_map &cm, const char name, CONTEXT con);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	238 void register_string(context_map &cm, const char name, CONTEXT con) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	239 context_map::iterator i = cm.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	240 if (i != cm.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	241 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	242 cm[x] = con;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	243 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	244
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	245
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	246 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	247 // disconnect the fd from the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	248 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	249 void my_disconnect(int sock, bool decrement = true);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	250 void my_disconnect(int sock, bool decrement) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	251 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	252 if (decrement) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	253 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	254 resolver_sock_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	255 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	256 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	257 shutdown(sock, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	258 close(sock);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	259 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	260 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	261
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	262
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	263 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	264 // return fd connected to the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	265 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	266 int my_connect();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	267 int my_connect() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	268 // if we have had recent errors, don't even try to open the socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	269 if ((time(NULL) - last_error_time) < ERROR_SOCKET_TIME) return NULL_SOCKET;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	270
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	271 // nothing recent, maybe this time it will work
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	272 int sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	273 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	274 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	275 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	276 strncpy(server.sun_path, resolver_port, sizeof(server.sun_path)-1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	277 sock = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	278 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	279 bool rc = (connect(sock, (sockaddr *)&server, sizeof(server)) == 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	280 if (!rc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	281 my_disconnect(sock, false);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	282 sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	283 last_error_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	284 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	285 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	286 else last_error_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	287 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	288 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	289 resolver_sock_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	290 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	291 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	292 return sock;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	293 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	294
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	295
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	296 ////////////////////////////////////////////////
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	297 // Ask a dns question and get an A record answer in network byte order.
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	298 // We don't try very hard, just using the default resolver retry settings.
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	299 // If we cannot get an answer, we just accept the mail.
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	300 // If the qtype is ns_t_txt, the answer is placed in my_answer which
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	301 // must be non-null, and the return value can be ignored.
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	302 // A null string is returned in my_answer in the case of errors.
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	303 // If the qtype is ns_t_a, one of the ip addresses is returned in network byte order,
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	304 // and if my_answer is non-null, all the ip addresses are returned in
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	305 // my_answer (in network byte order), prepended with the count.
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	306 // IP address 0 is returned in case of errors.
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	307 //
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	308 uint32_t dns_interface(mlfiPriv &priv, const char question, int qtype, bool maybe_ip, ns_map nameservers, char *my_answer, size_t my_size) {
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	309 if (my_answer) my_answer[0] = '\0'; // return null string if there are no txt answers
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	310
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	311 // tell sendmail we are still working
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	312 #if _FFR_SMFI_PROGRESS
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	313 if (priv.eom) smfi_progress(priv.ctx);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	314 #endif
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	315
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	316 // this part can be done without locking the resolver mutex. Each
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	317 // milter thread is talking over its own socket to a separate resolver
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	318 // process, which does the actual dns resolution.
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	319 if (priv.err) return 0; // cannot ask more questions on this socket.
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	320 if (maybe_ip && (qtype == ns_t_a)) {
409 e018ed19a1cc require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 402 diff changeset	321 int c = 0;
410 6b03435868cb require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 409 diff changeset	322 const char* q = question;
409 e018ed19a1cc require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 402 diff changeset	323 while (*q) {
e018ed19a1cc require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 402 diff changeset	324 if (*q == '.') c++;
e018ed19a1cc require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 402 diff changeset	325 q++;
e018ed19a1cc require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 402 diff changeset	326 }
e018ed19a1cc require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 402 diff changeset	327 // might be a bare IPv4 address, try this first to avoid dns lookups that may not be needed
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	328 in_addr ip;
409 e018ed19a1cc require 3 dots in bare ip addresses Carl Byington <carl@five-ten-sg.com> parents: 402 diff changeset	329 if ((c == 3) && inet_aton(question, &ip)) {
252 836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	330 return ip.s_addr;
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	331 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	332 }
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	333 int8_t qt = qtype;
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	334 priv.my_write((const char *)&qt, 1);// write the query type
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	335 size_t n = strlen(question);
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	336 if (question[n-1] == '.') {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	337 priv.my_write(question, n+1); // write the question including the null terminator
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	338 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	339 else {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	340 priv.my_write(question, n); // write the question
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	341 priv.my_write(".", 2); // and the fully qualified . terminator and null string terminator
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	342 }
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	343
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	344 glommer glom;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	345 char buf = (char )&glom;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	346 priv.my_read(buf, sizeof(glom.length));
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	347 buf += sizeof(glom.length);
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	348 #ifdef RESOLVER_DEBUG
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	349 char text[1000];
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	350 snprintf(text, sizeof(text), "dns_interface() wrote question %s and has answer length %d", question, glom.length);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	351 my_syslog(text);
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	352 #endif
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	353 if (glom.length == 0) return 0;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	354 if (glom.length > sizeof(glom.answer)) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	355 priv.err = true;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	356 return 0; // cannot process overlarge answers
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	357 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	358 priv.my_read(buf, glom.length);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	359
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	360 #ifdef NS_PACKETSZ
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	361 // now we need to lock the resolver mutex to keep the milter threads from
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	362 // stepping on each other while parsing the dns answer.
252 836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	363 uint32_t ret_address = 0;
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	364 pthread_mutex_lock(&resolve_mutex);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	365 // parse the answer
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	366 ns_msg handle;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	367 ns_rr rr;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	368 if (ns_initparse(glom.answer, glom.length, &handle) == 0) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	369 // look for ns names
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	370 if (nameservers) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	371 ns_map &ns = *nameservers;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	372 int rrnum = 0;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	373 while (ns_parserr(&handle, ns_s_ns, rrnum++, &rr) == 0) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	374 if (ns_rr_type(rr) == ns_t_ns) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	375 char nam[NS_MAXDNAME+1];
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	376 char *n = nam;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	377 const u_char *p = ns_rr_rdata(rr);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	378 while (((n-nam) < NS_MAXDNAME) && ((size_t)(p-glom.answer) < glom.length) && *p) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	379 size_t s = *(p++);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	380 if (s > 191) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	381 // compression pointer
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	382 s = (s-192)256 + (p++);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	383 if (s >= glom.length) break; // pointer outside bounds of answer
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	384 p = glom.answer + s;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	385 s = *(p++);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	386 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	387 if (s > 0) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	388 if ((size_t)(n-nam) >= (NS_MAXDNAME-s)) break; // destination would overflow name buffer
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	389 if ((size_t)(p-glom.answer) >= (glom.length-s)) break; // source outside bounds of answer
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	390 memcpy(n, p, s);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	391 n += s;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	392 p += s;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	393 *(n++) = '.';
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	394 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	395 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	396 if (n-nam) n--; // remove trailing .
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	397 *n = '\0'; // null terminate it
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	398 ns.add(nam, question); // ns host to lookup later
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	399 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	400 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	401 rrnum = 0;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	402 while (ns_parserr(&handle, ns_s_ar, rrnum++, &rr) == 0) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	403 if (ns_rr_type(rr) == ns_t_a) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	404 char* nam = (char*)ns_rr_name(rr);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	405 ns_mapper::iterator i = ns.ns_ip.find(nam);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	406 if (i != ns.ns_ip.end()) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	407 // we want this ip address
252 836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	408 uint32_t address;
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	409 memcpy(&address, ns_rr_rdata(rr), sizeof(address));
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	410 ns.ns_ip[nam] = address;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	411 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	412 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	413 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	414 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	415 int rrnum = 0;
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	416 if (qtype == ns_t_a) {
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	417 uint32_t ans = (uint32_t )my_answer;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	418 size_t c = 0;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	419 size_t m = my_size/4; // 1 + max ipv4 addresses that will fit in the answer buffer
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	420 while (ns_parserr(&handle, ns_s_an, rrnum++, &rr) == 0) {
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	421 if (ns_rr_type(rr) == qtype) {
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	422 uint32_t address;
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	423 memcpy(&address, ns_rr_rdata(rr), sizeof(address));
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	424 ret_address = address;
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	425 if (ans && (c < m-1)) {
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	426 c++;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	427 ans[c] = address;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	428 }
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	429 }
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	430 }
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	431 if (ans && (c < m)) ans[0] = c;
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	432 }
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	433 if ((qtype == ns_t_mx) && (my_answer) && (my_size > 1)) {
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	434 uint32_t c = 0;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	435 while (ns_parserr(&handle, ns_s_an, rrnum++, &rr) == 0) {
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	436 if (ns_rr_type(rr) == qtype) {
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	437 char exchange[NS_MAXDNAME];
415 16451edcb962 spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 414 diff changeset	438 //size_t rdlen = ns_rr_rdlen(rr);
16451edcb962 spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 414 diff changeset	439 //const uint16_t pri = ns_get16(rdata);
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	440 const unsigned char *rdata = ns_rr_rdata(rr);
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	441 int len = dn_expand(glom.answer, glom.answer+glom.length, rdata + 2, exchange, sizeof(exchange));
415 16451edcb962 spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 414 diff changeset	442 if ((len > 0) && (my_size > (uint32_t)len+2)) {
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	443 strcpy(my_answer, exchange);
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	444 my_answer += len + 1;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	445 my_size -= len + 1;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	446 c++;
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	447 }
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	448 }
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	449 }
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	450 *my_answer = '\0'; // final trailing null
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	451 ret_address = htonl(c);
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	452 }
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	453 if ((qtype == ns_t_txt) && (my_answer) && (my_size > 7)) {
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	454 my_answer[0] = '\0'; // return null string if there are no txt answers
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	455 my_size--; // allow room for terminating null;
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	456 while (ns_parserr(&handle, ns_s_an, rrnum++, &rr) == 0) {
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	457 if (ns_rr_type(rr) == qtype) {
384 7b7066a51c33 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 382 diff changeset	458 size_t offset = 0;
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	459 size_t rdlen = ns_rr_rdlen(rr);
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	460 const unsigned char *rdata = ns_rr_rdata(rr);
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	461 #ifdef RESOLVER_DEBUG
385 be7355b47051 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 384 diff changeset	462 char text[1000];
be7355b47051 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 384 diff changeset	463 snprintf(text, sizeof(text), "found txt record rdlen = %d", rdlen);
be7355b47051 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 384 diff changeset	464 my_syslog(text);
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	465 #endif
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	466 while ((offset < my_size) && rdlen) {
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	467 size_t slen = size_t(*(rdata++));
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	468 rdlen--;
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	469 size_t m = min(slen, rdlen);
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	470 m = min(m, my_size-offset);
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	471 memcpy(my_answer+offset, rdata, m);
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	472 offset += m;
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	473 rdata += m;
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	474 rdlen -= m;
879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	475 }
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	476 my_answer[offset] = '\0'; // trailing null
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	477 #ifdef RESOLVER_DEBUG
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	478 snprintf(text, sizeof(text), "found txt record %s", my_answer);
385 be7355b47051 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 384 diff changeset	479 my_syslog(text);
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	480 #endif
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	481 if (strncasecmp(my_answer, "v=spf1 ", 7) == 0) break;
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	482 }
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	483 }
414 d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	484 if (strncasecmp(my_answer, "v=spf1 ", 7) != 0) {
d5a1ed33d3ae spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 410 diff changeset	485 my_answer[0] = '\0'; // return null string if there are no spf1 txt answers
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	486 }
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	487 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	488 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	489 pthread_mutex_unlock(&resolve_mutex);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	490 #ifdef RESOLVER_DEBUG
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	491 snprintf(text, sizeof(text), "dns_interface() found ip %d", ret_address);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	492 my_syslog(text);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	493 #endif
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	494 return ret_address;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	495 #else
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	496 return glom.answer;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	497 #endif
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	498 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	499
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	500
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	501 ////////////////////////////////////////////////
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	502 // lookup a hostname on the uribl
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	503 //
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	504 // if we find hostname on the uribl, return true and point found to hostname
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	505 // as a string registered in hosts.
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	506 // otherwise, return false and preserve the value of found.
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	507 //
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	508 bool uriblookup(mlfiPriv &priv, string_set &hosts, const char hostname, const char &found) ;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	509 bool uriblookup(mlfiPriv &priv, string_set &hosts, const char hostname, const char &found) {
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	510 char buf[maxlen];
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	511 snprintf(buf, sizeof(buf), "%s.%s.", hostname, priv.uribl_suffix);
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	512 uint32_t ip = ntohl(dns_interface(priv, buf, ns_t_a));
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	513 if (ip and (ip != 0x7f000000)) {
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	514 if (debug_syslog > 2) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	515 char tmp[maxlen];
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	516 snprintf(tmp, sizeof(tmp), "found %s on %s", hostname, priv.uribl_suffix);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	517 my_syslog(tmp);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	518 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	519 found = register_string(hosts, hostname);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	520 return true;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	521 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	522 return false;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	523 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	524
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	525
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	526 ////////////////////////////////////////////////
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	527 // uribl checker
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	528 // -------------
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	529 // hostname MUST not have a trailing dot. Find the tld part of
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	530 // the hostname, and add one more level. If that is listed on
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	531 // the uribl, return true and point found to the part of the
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	532 // hostname that we found as a string registered in hosts.
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	533 // Otherwise, return false and preserve the value of found.
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	534 //
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	535 bool check_uribl(mlfiPriv &priv, string_set &hosts, const char hostname, const char &found) ;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	536 bool check_uribl(mlfiPriv &priv, string_set &hosts, const char hostname, const char &found) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	537 in_addr ip;
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	538 if (inet_aton(hostname, &ip)) return false; // don't check ip addresses in uribls
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	539 const char* components[maxlen];
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	540 int n = 0; // number of components in the hostname
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	541 while (n < maxlen) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	542 components[n++] = hostname;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	543 const char *c = strchr(hostname, '.');
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	544 if (!c) break;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	545 hostname = c+1;
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	546 }
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	547 string_set *tlds = priv.memory->get_tlds();
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	548 string_set *tldwilds = priv.memory->get_tldwilds();
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	549 string_set *tldnots = priv.memory->get_tldnots();
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	550 string_set::iterator xtlds = tlds->end();
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	551 string_set::iterator xtldwilds = tldwilds->end();
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	552 string_set::iterator xtldnots = tldnots->end();
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	553 for (int i=max(0,n-4); i<n; i++) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	554 const char* name = components[i];
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	555 bool rc = false;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	556 string_set::iterator tt = tldnots->find(name);
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	557 if (tt != xtldnots) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	558 rc = true;
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	559 }
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	560 else {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	561 tt = tldwilds->find(name);
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	562 if (tt != xtldwilds) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	563 if (i > 1) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	564 rc = true;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	565 name = components[i-2];
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	566 }
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	567 else return false;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	568 }
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	569 else {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	570 tt = tlds->find(name);
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	571 if (tt != xtlds) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	572 if (i > 0) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	573 rc = true;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	574 name = components[i-1];
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	575 }
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	576 else return false;
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	577 }
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	578 }
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	579 }
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	580 if (rc) {
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	581 return uriblookup(priv, hosts, name, found);
f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	582 }
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	583 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	584 return false;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	585 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	586
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	587
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	588 mlfiPriv::mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	589 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	590 pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	591 pc->reference_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	592 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	593 get_fd();
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	594 ctx = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	595 eom = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	596 ip = 0;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	597 helo = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	598 mailaddr = NULL;
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	599 origaddr = NULL;
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	600 fromaddr = NULL;
e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	601 header_count = 0;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	602 dkim_ok = true;
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	603 queueid = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	604 authenticated = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	605 client_name = NULL;
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	606 client_dns_name = NULL;
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	607 client_dns_forged = false;
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	608 host_uribl = NULL;
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	609 helo_uribl = false;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	610 client_uribl = false;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	611 from_uribl = false;
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	612 have_whites = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	613 only_whites = true;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	614 want_spamassassin = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	615 want_dccgrey = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	616 want_dccbulk = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	617 allow_autowhitelisting = true;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	618 content_context = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	619 memory = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	620 scanner = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	621 content_suffix = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	622 content_message = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	623 uribl_suffix = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	624 uribl_message = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	625 content_host_ignore = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	626 assassin = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	627 dccifd = NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	628 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	629
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	630 mlfiPriv::~mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	631 return_fd();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	632 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	633 pc->reference_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	634 bool last = (!pc->reference_count) && (pc != config);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	635 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	636 if (last) delete pc; // free this config, since we were the last reference to it
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	637 if (helo) free((void*)helo);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	638 reset(true);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	639 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	640
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	641 void mlfiPriv::reset(bool final) {
194 688ec12a3c0c delay autowhitelisting to avoid out of office reply bots carl parents: 193 diff changeset	642 while (!delayer.empty()) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	643 DELAYWHITEP dwp = delayer.front();
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	644 const char *loto = dwp->get_loto();
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	645 if (loto) free((void*)loto);
193 3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	646 delete dwp;
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	647 delayer.pop_front();
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	648 }
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	649 if (mailaddr) free((void*)mailaddr);
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	650 if (origaddr) free((void*)origaddr);
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	651 if (fromaddr) free((void*)fromaddr);
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	652 if (queueid) free((void*)queueid);
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	653 if (authenticated) free((void*)authenticated);
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	654 if (client_name) free((void*)client_name);
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	655 if (client_dns_name) free((void*)client_dns_name);
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	656 discard(dkim_signers);
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	657 discard(hosts_uribl);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	658 delayer.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	659 discard(env_to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	660 if (memory) delete memory;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	661 if (scanner) delete scanner;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	662 if (assassin) delete assassin;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	663 if (dccifd) delete dccifd;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	664 if (!final) {
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	665 ctx = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	666 eom = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	667 mailaddr = NULL;
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	668 origaddr = NULL;
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	669 fromaddr = NULL;
e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	670 header_count = 0;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	671 dkim_ok = true;
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	672 queueid = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	673 authenticated = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	674 client_name = NULL;
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	675 client_dns_name = NULL;
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	676 host_uribl = NULL;
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	677 helo_uribl = false;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	678 client_uribl = false;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	679 from_uribl = false;
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	680 have_whites = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	681 only_whites = true;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	682 want_spamassassin = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	683 want_dccgrey = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	684 want_dccbulk = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	685 allow_autowhitelisting = true;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	686 content_context = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	687 memory = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	688 scanner = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	689 content_suffix = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	690 content_message = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	691 uribl_suffix = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	692 uribl_message = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	693 content_host_ignore = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	694 assassin = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	695 dccifd = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	696 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	697 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	698
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	699 void mlfiPriv::get_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	700 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	701 fd = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	702 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	703 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	704 std::set<int>::iterator i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	705 i = fd_pool.begin();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	706 if (i != fd_pool.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	707 // have at least one fd in the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	708 err = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	709 fd = *i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	710 fd_pool.erase(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	711 resolver_pool_size--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	712 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	713 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	714 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	715 // pool is empty, get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	716 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	717 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	718 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	719 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	720 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	721 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	722 // cannot lock the pool, just get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	723 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	724 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	725 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	726 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	727
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	728 void mlfiPriv::return_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	729 if (err) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	730 // this fd got a socket error, so close it, rather than returning it to the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	731 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	732 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	733 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	734 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	735 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	736 if ((resolver_sock_count > resolver_pool_size*5) \|\| (resolver_pool_size < 5)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	737 // return the fd to the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	738 fd_pool.insert(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	739 resolver_pool_size++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	740 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	741 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	742 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	743 // more than 20% of the open resolver sockets are in the pool, and the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	744 // pool as at least 5 sockets. that is enough, so just close this one.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	745 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	746 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	747 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	748 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	749 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	750 // could not lock the pool, so just close the fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	751 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	752 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	753 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	754 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	755
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	756 size_t mlfiPriv::my_write(const char *buf, size_t len) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	757 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	758 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	759 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	760 size_t ws = write(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	761 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	762 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	763 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	764 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	765 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	766 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	767 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	768 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	769 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	770 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	771 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	772 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	773 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	774 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	775
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	776 size_t mlfiPriv::my_read(char *buf, size_t len) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	777 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	778 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	779 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	780 size_t ws = read(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	781 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	782 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	783 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	784 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	785 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	786 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	787 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	788 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	789 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	790 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	791 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	792 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	793 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	794 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	795
377 7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	796 const char *mlfiPriv::check_uribl_signers() {
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	797 if (uribl_suffix) {
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	798 for (string_set::iterator s=dkim_signers.begin(); s!=dkim_signers.end(); s++) {
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	799 if (check_uribl(this, hosts_uribl, s, host_uribl)) return host_uribl;
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	800 }
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	801 }
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	802 return NULL;
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	803 }
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	804
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	805 void mlfiPriv::need_content_filter(CONTEXT &con) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	806 if (!memory) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	807 // first recipient that needs content filtering sets
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	808 // some of the content filtering parameters
270 f92f24950bd3 Use mozilla prefix list for tld checking, Enable surbl/uribl/dbl rhs lists Carl Byington <carl@five-ten-sg.com> parents: 268 diff changeset	809 memory = new recorder(this, con.get_html_tags(), con.get_content_tlds(), con.get_content_tldwilds(), con.get_content_tldnots());
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	810 scanner = new url_scanner(memory);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	811 content_suffix = con.get_content_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	812 content_message = con.get_content_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	813 uribl_suffix = con.get_uribl_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	814 uribl_message = con.get_uribl_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	815 content_host_ignore = &con.get_content_host_ignore();
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	816 // if we are using uribl, test helo and client names here
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	817 if (uribl_suffix) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	818 if (helo) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	819 helo_uribl = check_uribl(*this, hosts_uribl, helo, host_uribl);
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	820 }
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	821 if (client_dns_name && !helo_uribl) {
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	822 client_uribl = check_uribl(*this, hosts_uribl, client_dns_name, host_uribl);
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	823 }
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	824 if (mailaddr && !client_uribl) {
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	825 const char *f = strchr(mailaddr, '@');
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	826 if (f) from_uribl = check_uribl(*this, hosts_uribl, f+1, host_uribl);
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	827 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	828 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	829 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	830 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	831
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	832
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	833 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx);
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	834 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	835 {
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	836 mlfiPriv priv = (struct mlfiPriv )smfi_getpriv(ctx);
187 f0eda59e8afd fix null pointer dereference from missing HELO command carl parents: 186 diff changeset	837 priv->ctx = ctx;
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	838 return priv;
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	839 }
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	840 #define MLFIPRIV fetch_priv_from_ctx(ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	841
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	842
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	843
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	844 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	845 // syslog a message
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	846 //
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	847 void my_syslog(const char queueid, const char text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	848 char buf[maxlen];
311 f5547e7b3a09 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 310 diff changeset	849 if (queueid && queueid[0]) {
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	850 snprintf(buf, sizeof(buf), "%s: %s", queueid, text);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	851 text = buf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	852 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	853 if (use_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	854 pthread_mutex_lock(&syslog_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	855 if (!syslog_opened) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	856 openlog("dnsbl", LOG_PID, LOG_MAIL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	857 syslog_opened = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	858 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	859 syslog(LOG_NOTICE, "%s", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	860 pthread_mutex_unlock(&syslog_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	861 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	862 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	863 printf("%s \n", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	864 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	865 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	866
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	867 void my_syslog(mlfiPriv priv, const char text) {
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	868 if (priv) my_syslog(priv->queueid, text);
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	869 else my_syslog((const char *)NULL, text);
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	870 }
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	871
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	872 void my_syslog(mlfiPriv *priv, const string text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	873 if (debug_syslog > 3) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	874 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	875 strncpy(buf, text.c_str(), sizeof(buf));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	876 buf[maxlen-1] = '\0'; // ensure null termination
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	877 my_syslog(priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	878 }
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	879 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	880
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	881 void my_syslog(const char *text) {
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	882 my_syslog((const char *)NULL, text);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	883 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	884
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	885
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	886 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	887 // read a resolver request from the socket, process it, and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	888 // write the result back to the socket.
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	889
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	890 void process_resolver_requests(int socket);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	891 void process_resolver_requests(int socket) {
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	892 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	893 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	894 #else
389 aa9795b407e8 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 388 diff changeset	895 char question[1025];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	896 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	897 glommer glom;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	898
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	899 int maxq = sizeof(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	900 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	901 // read a question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	902 int rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	903 while (rs < maxq) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	904 int ns = read(socket, question+rs, maxq-rs);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	905 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	906 rs += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	907 if (question[rs-1] == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	908 // last byte read was the null terminator, we are done
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	909 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	910 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	911 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	912 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	913 // peer closed the socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	914 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	915 my_syslog("process_resolver_requests() peer closed socket while reading question");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	916 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	917 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	918 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	919 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	920 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	921 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	922 question[rs-1] = '\0'; // ensure null termination
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	923
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	924 // find the answer
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	925 #ifdef NS_PACKETSZ
388 2354a1944e49 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 387 diff changeset	926 int qt = int8_t(question[0]);
2354a1944e49 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 387 diff changeset	927 int res_result = res_query(question+1, ns_c_in, qt, glom.answer, sizeof(glom.answer));
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	928 #ifdef RESOLVER_DEBUG
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	929 char text[1000];
387 616e46e9b8f0 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 386 diff changeset	930 snprintf(text, sizeof(text), "process_resolver_requests() has a question %s qtype %d buf len %d result %d",
388 2354a1944e49 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 387 diff changeset	931 question+1, qt, sizeof(glom.answer), res_result);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	932 my_syslog(text);
390 bcef093b1ba6 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 389 diff changeset	933 #endif
223 da9e7f1c8160 fix unsigned signed compare, back to mixed -lresolv and libresolv.a with auto requires Carl Byington <carl@five-ten-sg.com> parents: 222 diff changeset	934 if (res_result < 0) glom.length = 0; // represent all errors as zero length answers
da9e7f1c8160 fix unsigned signed compare, back to mixed -lresolv and libresolv.a with auto requires Carl Byington <carl@five-ten-sg.com> parents: 222 diff changeset	935 else glom.length = (size_t)res_result;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	936 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	937 glom.length = sizeof(glom.answer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	938 glom.answer = 0;
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	939 int t = int8_t(question[0]);
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	940 if (t != ns_t_a) {
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	941 glom.length = 0;
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	942 }
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	943 else {
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	944 struct hostent *host = gethostbyname(question+1);
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	945 if (host && (host->h_addrtype == AF_INET)) {
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	946 memcpy(&glom.answer, host->h_addr, sizeof(glom.answer));
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	947 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	948 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	949 #endif
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	950
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	951 // write the answer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	952 char buf = (char )&glom;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	953 int len = glom.length + sizeof(glom.length);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	954 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	955 snprintf(text, sizeof(text), "process_resolver_requests() writing answer length %d for total %d", glom.length, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	956 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	957 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	958 int ws = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	959 while (len > ws) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	960 int ns = write(socket, buf+ws, len-ws);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	961 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	962 ws += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	963 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	964 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	965 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	966 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	967 my_syslog("process_resolver_requests() peer closed socket while writing answer");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	968 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	969 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	970 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	971 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	972 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	973 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	974 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	975 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	976
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	977
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	978 ////////////////////////////////////////////////
252 836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	979 // check a single dns list, return ip address in network byte order
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	980 //
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	981 uint32_t check_single(mlfiPriv &priv, uint32_t ip, const char *suffix);
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	982 uint32_t check_single(mlfiPriv &priv, uint32_t ip, const char *suffix) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	983 // make a dns question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	984 const u_char src = (const u_char )&ip;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	985 if (src[0] == 127) return 0; // don't do dns lookups on localhost
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	986 if (src[0] == 10) return 0; // don't do dns lookups on rfc1918 space
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	987 if ((src[0] == 192) && (src[1] == 168)) return 0;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	988 if ((src[0] == 172) && (16 <= src[1]) && (src[1] <= 31)) return 0;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	989 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	990 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	991 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	992 char question[1000];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	993 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	994 snprintf(question, sizeof(question), "%u.%u.%u.%u.%s.", src[3], src[2], src[1], src[0], suffix);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	995 // ask the question, if we get an A record it implies a blacklisted ip address
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	996 return dns_interface(priv, question, ns_t_a);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	997 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	998
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	999
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1000 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1001 // check a single dnsbl
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1002 //
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1003 bool check_single(mlfiPriv &priv, uint32_t ip, DNSBL &bl);
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1004 bool check_single(mlfiPriv &priv, uint32_t ip, DNSBL &bl) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1005 return check_single(priv, ip, bl.suffix);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1006 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1007
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1008
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1009 ////////////////////////////////////////////////
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1010 // check a single dnswl
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1011 //
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1012 bool check_single(mlfiPriv &priv, uint32_t ip, DNSWL &wl);
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1013 bool check_single(mlfiPriv &priv, uint32_t ip, DNSWL &wl) {
252 836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	1014 uint32_t r = ntohl(check_single(priv, ip, wl.suffix));
836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	1015 uint32_t v = (uint32_t)0x7f000000;
836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	1016 uint32_t m = (uint32_t)0xffff0000;
836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	1017 uint32_t m2 = (uint32_t)0x000000ff;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1018 if ((r & m) == v) {
252 836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	1019 uint32_t l = r & m2;
836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	1020 if ((int)l >= wl.level) return true;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1021 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1022 return false;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1023 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1024
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1025
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1026 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1027 // check the dnsbls specified for this recipient
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1028 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1029 bool check_dnsbl(mlfiPriv &priv, dnsblp_list &dnsbll, DNSBLP &rejectlist);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1030 bool check_dnsbl(mlfiPriv &priv, dnsblp_list &dnsbll, DNSBLP &rejectlist) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1031 for (dnsblp_list::iterator i=dnsbll.begin(); i!=dnsbll.end(); i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1032 DNSBLP dp = *i; // non null by construction
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1033 bool st;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1034 map<DNSBLP, bool>::iterator f = priv.checked_black.find(dp);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1035 if (f == priv.checked_black.end()) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1036 // have not checked this list yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1037 st = check_single(priv, priv.ip, *dp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1038 rejectlist = dp;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1039 priv.checked_black[dp] = st;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1040 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1041 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1042 st = (*f).second;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1043 rejectlist = (*f).first;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1044 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1045 if (st) return st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1046 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1047 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1048 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1049
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1050
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1051 ////////////////////////////////////////////////
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1052 // check the dnswls specified for this recipient
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1053 //
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1054 bool check_dnswl(mlfiPriv &priv, dnswlp_list &dnswll, DNSWLP &acceptlist);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1055 bool check_dnswl(mlfiPriv &priv, dnswlp_list &dnswll, DNSWLP &acceptlist) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1056 for (dnswlp_list::iterator i=dnswll.begin(); i!=dnswll.end(); i++) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1057 DNSWLP dp = *i; // non null by construction
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1058 bool st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1059 map<DNSWLP, bool>::iterator f = priv.checked_white.find(dp);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1060 if (f == priv.checked_white.end()) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1061 // have not checked this list yet
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1062 st = check_single(priv, priv.ip, *dp);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1063 acceptlist = dp;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1064 priv.checked_white[dp] = st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1065 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1066 else {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1067 st = (*f).second;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1068 acceptlist = (*f).first;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1069 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1070 if (st) return st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1071 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1072 return false;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1073 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1074
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1075
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1076 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1077 // check the hosts from the body against the content filter and uribl dnsbls
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1078 //
124 ea6f9c812faa put hostname in smtp message for uribl style lookups carl parents: 123 diff changeset	1079 //
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1080 bool check_hosts(mlfiPriv &priv, bool random, int limit, const char &msg, const char &host, uint32_t &ip, const char *&found);
c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1081 bool check_hosts(mlfiPriv &priv, bool random, int limit, const char &msg, const char &host, uint32_t &ip, const char *&found) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1082 found = NULL; // normally ip address style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1083 if (!priv.content_suffix && !priv.uribl_suffix) return false; // nothing to check
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1084 string_set &hosts = priv.memory->get_hosts();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1085 string_set &ignore = *priv.content_host_ignore;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1086
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1087 int count = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1088 int cnt = hosts.size(); // number of hosts we could look at
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1089 uint32_t_set ips;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1090 ns_map nameservers;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1091 for (string_set::iterator i=hosts.begin(); i!=hosts.end(); i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1092 host = *i; // a reference into hosts, which will live until this smtp transaction is closed
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1093
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1094 // don't bother looking up hosts on the ignore list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1095 string_set::iterator j = ignore.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1096 if (j != ignore.end()) continue;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1097
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1098 // try to only look at limit/cnt fraction of the available cnt host names in random mode
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1099 if ((cnt > limit) && (limit > 0) && random) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1100 int r = rand() % cnt;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1101 if (r >= limit) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1102 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1103 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1104 snprintf(buf, sizeof(buf), "host %s skipped", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1105 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1106 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1107 continue;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1108 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1109 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1110 count++;
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	1111 ip = dns_interface(priv, host, ns_t_a, true, &nameservers);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1112 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1113 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1114 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1115 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1116 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1117 inet_ntop(AF_INET, (const u_char *)&ip, adr, sizeof(adr));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1118 snprintf(buf, sizeof(buf), "host %s found at %s", host, adr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1119 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1120 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1121 snprintf(buf, sizeof(buf), "host %s not found", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1122 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1123 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1124 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1125 if (ip) {
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1126 uint32_t_set::iterator i = ips.find(ip);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1127 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1128 // we haven't looked this up yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1129 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1130 // check dnsbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1131 if (priv.content_suffix && check_single(priv, ip, priv.content_suffix)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1132 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1133 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1134 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1135 // Check uribl & surbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1136 if (priv.uribl_suffix && check_uribl(priv, hosts, host, found)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1137 msg = priv.uribl_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1138 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1139 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1140 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1141 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1142 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1143 limit *= 4; // allow average of 3 ns per host name
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1144 for (ns_mapper::iterator i=nameservers.ns_ip.begin(); i!=nameservers.ns_ip.end(); i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1145 count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1146 if ((count > limit) && (limit > 0)) return false; // too many name servers to check them all
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1147 host = (*i).first; // a transient reference that needs to be replaced before we return it
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1148 ip = (*i).second;
381 879a470c6ac3 fetch spf txt records for required dkim signers Carl Byington <carl@five-ten-sg.com> parents: 379 diff changeset	1149 if (!ip) ip = dns_interface(priv, host, ns_t_a);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1150 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1151 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1152 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1153 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1154 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1155 inet_ntop(AF_INET, (const u_char *)&ip, adr, sizeof(adr));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1156 snprintf(buf, sizeof(buf), "ns %s found at %s", host, adr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1157 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1158 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1159 snprintf(buf, sizeof(buf), "ns %s not found", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1160 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1161 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1162 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1163 if (ip) {
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1164 uint32_t_set::iterator i = ips.find(ip);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1165 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1166 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1167 if (check_single(priv, ip, priv.content_suffix)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1168 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1169 string_map::iterator j = nameservers.ns_host.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1170 if (j != nameservers.ns_host.end()) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1171 const char refer = (j).second;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1172 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1173 snprintf(buf, sizeof(buf), "%s with nameserver %s", refer, host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1174 host = register_string(hosts, buf); // put a copy into hosts, and return that reference
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1175 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1176 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1177 host = register_string(hosts, host); // put a copy into hosts, and return that reference
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1178 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1179 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1180 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1181 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1182 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1183 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1184 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1185 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1186
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1187
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1188 ////////////////////////////////////////////////
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1189 //
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1190 // this email address is passed in from sendmail, and will normally be
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1191 // enclosed in <>. I think older versions of sendmail supplied the <>
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1192 // wrapper if the mail client did not, but the current version does not do
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1193 // that. So the <> wrapper is now optional. It may have mixed case, just
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1194 // as the mail client sent it. We dup the string and convert the duplicate
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1195 // to lower case. Some clients enclose the entire address in single quotes,
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1196 // so we strip those as well. We also remove the SRS and prvs coding.
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1197 //
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1198 const char to_lower_string(const char email, bool srs = true);
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1199 const char to_lower_string(const char email, bool srs) {
266 582cfb9c4031 fix unauthenticated rate limit bug for empty mail from Carl Byington <carl@five-ten-sg.com> parents: 263 diff changeset	1200 if (!email) return strdup("<>");
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1201 size_t n = strlen(email);
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1202 if ((n > 1) && (email[0] == '<') && (email[n-1] == '>')) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1203 n -= 2;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1204 email++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1205 }
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1206 if ((n > 1) && (email[0] == '\'') && (email[n-1] == '\'')) {
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1207 n -= 2;
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1208 email++;
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1209 }
352 f5a6740cabee need to lowercase the domain extracted from the from header so it will match the keys in dkim_from Carl Byington <carl@five-ten-sg.com> parents: 350 diff changeset	1210 if (n == 0) return strdup("<>");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1211 char *key = strdup(email);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1212 key[n] = '\0';
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1213 for (size_t i=0; i<n; i++) key[i] = tolower(key[i]);
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1214
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1215 if (srs) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1216 if ((n > 14) && (strncmp(key, "srs", 3) == 0)) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1217 // might have srs coding to be removed
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1218 const int nmatch = 7;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1219 regmatch_t match[nmatch];
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1220 if (0 == regexec(&srs_pattern, key, nmatch, match, 0)) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1221 int s4 = match[5].rm_so; // domain
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1222 int e4 = match[5].rm_eo;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1223 int s5 = match[6].rm_so; // user
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1224 int e5 = match[6].rm_eo;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1225 if ((s4 != -1) && (s5 != -1)) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1226 char *newkey = strdup(key); // large enough
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1227 key[e4] = '\0';
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1228 key[e5] = '\0';
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1229 strcpy(newkey, key+s5); // user
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1230 strcat(newkey, "@"); // @
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1231 strcat(newkey, key+s4); // domain
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1232 free(key);
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1233 key = newkey;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1234 }
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1235 }
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1236 }
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1237 if ((n > 7) && (strncmp(key, "prvs", 4) == 0)) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1238 // might have prvs coding to be removed
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1239 const int nmatch = 3;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1240 regmatch_t match[nmatch];
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1241 if (0 == regexec(&prvs_pattern, key, nmatch, match, 0)) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1242 int s2 = match[2].rm_so; // user@domain
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1243 if (s2 != -1) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1244 char *newkey = strdup(key+s2); // user@domain
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1245 free(key);
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1246 key = newkey;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1247 }
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1248 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1249 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1250 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1251 return key;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1252 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1253
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1254
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1255 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1256 // start of sendmail milter interfaces
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1257 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1258 sfsistat mlfi_connect(SMFICTX ctx, char hostname, _SOCK_ADDR *hostaddr)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1259 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1260 // allocate some private memory
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1261 mlfiPriv *priv = new mlfiPriv;
286 9bd5388bf469 Fix possible segfault in mlfi_connect, hostaddr might be null Carl Byington <carl@five-ten-sg.com> parents: 284 diff changeset	1262 if (hostaddr && (hostaddr->sa_family == AF_INET)) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1263 priv->ip = ((struct sockaddr_in *)hostaddr)->sin_addr.s_addr;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1264 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1265 // save the private data
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1266 smfi_setpriv(ctx, (void*)priv);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1267
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1268 // continue processing
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1269 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1270 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1271
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1272 sfsistat mlfi_helo(SMFICTX * ctx, char *helohost)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1273 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1274 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1275 priv.helo = strdup(helohost);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1276 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1277 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1278
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1279 sfsistat mlfi_envfrom(SMFICTX ctx, char *from)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1280 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1281 mlfiPriv &priv = *MLFIPRIV;
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1282 CONFIG &dc = *priv.pc;
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1283 priv.origaddr = to_lower_string(from[0], false);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1284 priv.mailaddr = to_lower_string(from[0]);
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1285 priv.queueid = strdup(smfi_getsymval(ctx, (char*)"i"));
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1286 priv.authenticated = smfi_getsymval(ctx, (char*)"{auth_authen}");
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1287 priv.client_name = smfi_getsymval(ctx, (char*)"_");
191 2a67d31099c3 fix null pointer dereference from missing HELO command carl parents: 190 diff changeset	1288 if (!priv.helo) priv.helo = strdup("unknown");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1289 if (priv.authenticated) priv.authenticated = strdup(priv.authenticated);
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1290 if (priv.client_name) {
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1291 priv.client_name = strdup(priv.client_name);
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1292 const char *p = strstr(priv.client_name, " [");
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1293 if (p) {
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1294 uint pp = p - priv.client_name;
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1295 priv.client_dns_name = strdup(priv.client_name);
d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1296 priv.client_dns_name[pp] = '\0';
259 be939802c64e add recipient rate limits by email from address or domain Carl Byington <carl@five-ten-sg.com> parents: 257 diff changeset	1297 //char text[500];
be939802c64e add recipient rate limits by email from address or domain Carl Byington <carl@five-ten-sg.com> parents: 257 diff changeset	1298 //snprintf(text, sizeof(text), "found simple dns client name %s", priv.client_dns_name);
be939802c64e add recipient rate limits by email from address or domain Carl Byington <carl@five-ten-sg.com> parents: 257 diff changeset	1299 //my_syslog(text);
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1300 }
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1301 p = strstr(priv.client_name, "] (may be forged)");
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1302 if (p) {
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1303 priv.client_dns_forged = true;
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1304 if (priv.client_dns_name) {
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1305 char text[500];
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1306 snprintf(text, sizeof(text), "forged dns client name %s", priv.client_dns_name);
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1307 my_syslog(text);
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1308 }
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1309 }
257 d11b529ce9c5 Fix uribl lookups on client dns name, need to strip the ip address in brackets Carl Byington <carl@five-ten-sg.com> parents: 255 diff changeset	1310 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1311 if (spamc != spamc_empty) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1312 priv.assassin = new SpamAssassin(&priv, priv.ip, priv.helo, priv.mailaddr, priv.queueid);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1313 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1314 if (dccifd_port) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1315 priv.dccifd = new DccInterface(dccifd_port, &priv, priv.ip, priv.helo, priv.mailaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1316 }
290 bb69fdc3acaa Unique ip connection limits only apply to authenticated connections Carl Byington <carl@five-ten-sg.com> parents: 286 diff changeset	1317 if (priv.authenticated) {
284 896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1318 int hourly, daily;
290 bb69fdc3acaa Unique ip connection limits only apply to authenticated connections Carl Byington <carl@five-ten-sg.com> parents: 286 diff changeset	1319 add_auth_address(priv.authenticated, hourly, daily, priv.ip);
bb69fdc3acaa Unique ip connection limits only apply to authenticated connections Carl Byington <carl@five-ten-sg.com> parents: 286 diff changeset	1320 int h_limit = dc.default_context->find_address_limit(priv.authenticated);
284 896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1321 int d_limit = dc.default_context->get_daily_address_multiple() * h_limit;
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1322 if (debug_syslog > 1) {
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1323 char msg[maxlen];
290 bb69fdc3acaa Unique ip connection limits only apply to authenticated connections Carl Byington <carl@five-ten-sg.com> parents: 286 diff changeset	1324 snprintf(msg, sizeof(msg), "connect for %s (%d %d addresses, %d %d limits)", priv.authenticated, hourly, daily, h_limit, d_limit);
284 896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1325 my_syslog(&priv, msg);
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1326 }
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1327 if ((hourly > h_limit) \|\| (daily > d_limit)){
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1328 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"unique connection ip address limit exceeded");
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1329 return SMFIS_REJECT;
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1330 }
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1331 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1332 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1333 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1334
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1335 sfsistat mlfi_envrcpt(SMFICTX ctx, char *rcpt)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1336 {
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1337 DNSBLP rejectlist = NULL; // list that caused the reject
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1338 mlfiPriv &priv = *MLFIPRIV;
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1339 CONFIG &dc = *priv.pc;
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1340 const char *rcptaddr = rcpt[0];
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1341 const char *loto = to_lower_string(rcptaddr);
342 6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1342 bool self = (strcmp(loto, priv.mailaddr) == 0);
6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1343 const u_char src = (const u_char )&priv.ip;
6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1344 bool local_source = (src[0] == 127);
6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1345 bool from_root = (strncasecmp(priv.mailaddr, "root@", 5) == 0);
174 da0c41b9f672 don't whitelist addresses with embedded spaces carl parents: 173 diff changeset	1346
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1347 // some version of sendmail allowed rcpt to:<> and passed it thru to the milters
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1348 if (strcmp(loto, "<>") == 0) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1349 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"bogus recipient");
286 9bd5388bf469 Fix possible segfault in mlfi_connect, hostaddr might be null Carl Byington <carl@five-ten-sg.com> parents: 284 diff changeset	1350 free((void*)loto); // cppcheck static analysis found memory leak
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1351 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1352 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1353 // priv.mailaddr sending original message to loto
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1354 CONTEXT &con = *(dc.find_context(loto)->find_context(priv.mailaddr));
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1355 VERIFYP ver = con.find_verify(loto);
233 5c3e9bf45bb5 Add whitelisting by regex expression filtering. Carl Byington <carl@five-ten-sg.com> parents: 231 diff changeset	1356 const char *fromvalue = con.find_from(priv.mailaddr, true, priv.queueid);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1357 // tell spam assassin and dccifd about this recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1358 if (priv.assassin) priv.assassin->mlfi_envrcpt(ctx, loto);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1359 if (priv.dccifd) priv.dccifd->mlfi_envrcpt(ctx, loto, con.get_grey() && !priv.authenticated);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1360 // loto sending a reply back to priv.mailaddr
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1361 CONTEXT &con2 = *(dc.find_context(priv.mailaddr)->find_context(loto));
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1362 const char *replyvalue = con2.find_from(loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1363 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1364 char buf[maxlen];
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1365 char buf2[maxlen];
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1366 char msg[maxlen];
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1367 snprintf(msg, sizeof(msg), "from <%s> to <%s> using context %s state %s reply context %s state %s", priv.mailaddr, loto, con.get_full_name(buf,maxlen), fromvalue, con2.get_full_name(buf2,maxlen), replyvalue);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1368 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1369 }
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1370 free((void*)loto);
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1371 status st = oksofar;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1372 if (replyvalue == token_black) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1373 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"recipient can not reply due to blacklisting");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1374 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1375 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1376 if (priv.authenticated) {
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1377 int hourly, daily;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1378 incr_rcpt_count(priv.authenticated, hourly, daily);
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1379 int h_limit = dc.default_context->find_rate_limit(priv.authenticated);
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1380 int d_limit = dc.default_context->get_daily_rate_multiple() * h_limit;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1381 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1382 char msg[maxlen];
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1383 snprintf(msg, sizeof(msg), "authenticated id %s (%d %d recipients, %d %d limits)", priv.authenticated, hourly, daily, h_limit, d_limit);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1384 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1385 }
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1386 if ((hourly > h_limit) \|\| (daily > d_limit)){
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1387 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"recipient rate limit exceeded");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1388 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1389 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1390 st = white;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1391 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1392 else if (fromvalue == token_black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1393 st = black;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1394 }
342 6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1395 else if ((fromvalue == token_white) && (local_source \|\| from_root)) {
6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1396 st = white;
6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1397 }
216 784030ac71f1 Never whitelist self addressed mail. Changes for Fedora 10 and const correctness. Carl Byington <carl@five-ten-sg.com> parents: 214 diff changeset	1398 else if ((fromvalue == token_white) && !self) {
330 b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1399 // whitelisting based on envelope from value, but ignore it if
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1400 // we have a dkim requirement for the original domain
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1401 const char *domain = strchr(priv.origaddr, '@');
330 b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1402 if (domain) {
338 f375a67ee516 set st in all paths; missing +1 to avoid lookup starting with @ Carl Byington <carl@five-ten-sg.com> parents: 337 diff changeset	1403 DKIMP dk = con.find_dkim_from(domain+1);
330 b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1404 if (dk && (dk->action == token_require_signed)) {
b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1405 my_syslog(&priv, "dkim require_signed overrides envelope from whitelist");
338 f375a67ee516 set st in all paths; missing +1 to avoid lookup starting with @ Carl Byington <carl@five-ten-sg.com> parents: 337 diff changeset	1406 st = oksofar;
330 b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1407 }
b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1408 else st = white;
b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1409 }
b5b93a7e1e6d ignore envelope-from based whitelisting if we have a dkim requirement for that domain Carl Byington <carl@five-ten-sg.com> parents: 329 diff changeset	1410 else st = white; // might be <>, envelope from has no @
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1411 }
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1412
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1413 if (st == oksofar) {
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1414 // check the dns based lists, whitelist first
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1415 DNSWLP acceptlist = NULL; // list that caused the whitelisting
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1416 if (check_dnswl(priv, con.get_dnswl_list(), acceptlist)) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1417 st = white;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1418 if (debug_syslog > 1) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1419 char msg[maxlen];
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1420 snprintf(msg, sizeof(msg), "whitelisted by %s", acceptlist->name);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1421 my_syslog(&priv, msg);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1422 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1423 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1424 else if (check_dnsbl(priv, con.get_dnsbl_list(), rejectlist)) {
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1425 // reject the recipient based on some dnsbl
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1426 char adr[sizeof "255.255.255.255 "];
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1427 adr[0] = '\0';
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1428 inet_ntop(AF_INET, (const u_char *)&priv.ip, adr, sizeof(adr));
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1429 char buf[maxlen];
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1430 snprintf(buf, sizeof(buf), rejectlist->message, adr, adr);
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1431 smfi_setreply(ctx, (char)"550", (char)"5.7.1", buf);
be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1432 return SMFIS_REJECT;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1433 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1434 }
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1435
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1436 if (st == oksofar) {
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1437 // check forged rdns
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1438 if (con.get_requirerdns() && (!priv.client_dns_name \|\| priv.client_dns_forged)) {
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1439 // reject the recipient based on forged reverse dns
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1440 char buf[maxlen];
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1441 snprintf(buf, sizeof(buf), "%s is not acceptable", priv.client_name);
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1442 smfi_setreply(ctx, (char)"550", (char)"5.7.1", buf);
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1443 return SMFIS_REJECT;
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1444 }
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1445 // check generic rdns
301 13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1446 if (priv.client_dns_name) {
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1447 const char *msg = con.generic_match(priv.client_dns_name);
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1448 if (msg) {
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1449 // reject the recipient based on generic reverse dns
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1450 char buf[maxlen];
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1451 snprintf(buf, sizeof(buf), msg, priv.client_name);
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1452 smfi_setreply(ctx, (char)"550", (char)"5.7.1", buf);
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1453 return SMFIS_REJECT;
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1454 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1455 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1456 }
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1457
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1458 if (st == black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1459 // reject the recipient based on blacklisting either from or to
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1460 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"no such user");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1461 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1462 }
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1463
203 92a5c866bdfa Verify from/to pairs even if they might be explicitly whitelisted. Carl Byington <carl@five-ten-sg.com> parents: 194 diff changeset	1464 if (ver) {
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1465 // try to verify the original from/to pair of addresses even if it might be explicitly whitelisted
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1466 const char *loto = to_lower_string(rcptaddr, false);
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1467 bool rc = ver->ok(priv.queueid, priv.origaddr, loto);
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1468 free((void*)loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1469 if (!rc) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1470 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"no such user");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1471 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1472 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1473 }
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1474
263 e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1475 if (!priv.authenticated && dc.default_context->is_unauthenticated_limited(priv.mailaddr)) {
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1476 int hourly, daily;
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1477 incr_rcpt_count(priv.mailaddr, hourly, daily);
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1478 int h_limit = dc.default_context->find_rate_limit(priv.mailaddr);
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1479 int d_limit = dc.default_context->get_daily_rate_multiple() * h_limit;
263 e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1480 if (debug_syslog > 1) {
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1481 char msg[maxlen];
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1482 snprintf(msg, sizeof(msg), "unauthenticated address %s (%d %d recipients, %d %d limits)", priv.mailaddr, hourly, daily, h_limit, d_limit);
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1483 my_syslog(&priv, msg);
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1484 }
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1485 if ((hourly > h_limit) \|\| (daily > d_limit)){
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1486 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"recipient rate limit exceeded");
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1487 return SMFIS_REJECT;
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1488 }
e118fd2c6af0 fix unauthenticated rate limit bug for empty mail from; move unauthenticate rate limit checks after spam filtering Carl Byington <carl@five-ten-sg.com> parents: 259 diff changeset	1489 }
340 be776a246f97 when dkim require_signed overrides envelope from whitelisting, we still want to check dns based white/blacklists before content filtering Carl Byington <carl@five-ten-sg.com> parents: 338 diff changeset	1490
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1491 // we will accept the recipient, but add an auto-whitelist entry
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1492 // if needed to ensure we can accept replies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1493 loto = to_lower_string(rcptaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1494 WHITELISTERP w = con2.find_autowhite(loto, priv.mailaddr);
291 9f0d9fcb58dd Never add auto-whitelist entries for outgoing mail from localhost Carl Byington <carl@five-ten-sg.com> parents: 290 diff changeset	1495
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1496 // check if local part is too big
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1497 const int max_local_size = 30;
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1498 const char *p = strchr(loto, '@');
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1499 int len = (p) ? p-loto : max_local_size;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1500 if (len >= max_local_size) w = NULL; // too big, pretend we don't have a whitelister
291 9f0d9fcb58dd Never add auto-whitelist entries for outgoing mail from localhost Carl Byington <carl@five-ten-sg.com> parents: 290 diff changeset	1501
9f0d9fcb58dd Never add auto-whitelist entries for outgoing mail from localhost Carl Byington <carl@five-ten-sg.com> parents: 290 diff changeset	1502 // ignore auto whitelisting from outgoing mail from localhost
342 6d27b4f45799 allow envelope from whitelisting without dkim override for mail from localhost, or where the from address is root@* Carl Byington <carl@five-ten-sg.com> parents: 340 diff changeset	1503 if (local_source) w = NULL; // outgoing mail from localhost, pretend we don't have a whitelister
291 9f0d9fcb58dd Never add auto-whitelist entries for outgoing mail from localhost Carl Byington <carl@five-ten-sg.com> parents: 290 diff changeset	1504
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1505 // record it if we have a whitelister
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1506 if (w) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1507 DELAYWHITEP dwp = new DELAYWHITE(loto, w, &con2); // dwp takes ownership of the string
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1508 priv.delayer.push_back(dwp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1509 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1510 else {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1511 free((void*)loto); // or we free it here
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1512 }
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1513
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1514 // accept the recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1515 if (!con.get_content_filtering()) st = white;
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1516
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1517 if (st == oksofar) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1518 // remember first content filtering context
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1519 if (con.get_content_filtering()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1520 if (!priv.content_context) priv.content_context = &con;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1521 else if (con.get_require() && (priv.content_context != &con)) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1522 smfi_setreply(ctx, (char)"452", (char)"4.2.1", (char*)"incompatible filtering contexts");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1523 return SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1524 }
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1525 priv.need_content_filter(con);
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1526 char bu[maxlen];
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1527 bool uri = false;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1528 // content filtering implies also checking helo name on uribl (if enabled)
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1529 if (priv.helo_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1530 snprintf(bu, sizeof(bu), "(helo %s)", priv.host_uribl);
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1531 uri = true;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1532 }
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1533 // content filtering implies also checking client reverse dns name on uribl (if enabled)
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1534 if (priv.client_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1535 snprintf(bu, sizeof(bu), "(rdns %s)", priv.host_uribl);
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1536 uri = true;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1537 }
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1538 // content filtering implies also checking mail from domain name on uribl (if enabled)
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1539 if (priv.from_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1540 snprintf(bu, sizeof(bu), "(from %s)", priv.host_uribl);
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1541 uri = true;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1542 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1543 if (uri) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1544 char buf[maxlen];
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1545 snprintf(buf, sizeof(buf), priv.uribl_message, bu, priv.host_uribl);
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1546 smfi_setreply(ctx, (char)"550", (char)"5.7.1", buf);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1547 return SMFIS_REJECT;
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1548 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1549 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1550 // remember the non-whites
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1551 register_string(priv.env_to, rcptaddr, &con);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1552 priv.only_whites = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1553 priv.want_spamassassin \|= (priv.assassin) && // have spam assassin available and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1554 (con.get_spamassassin_limit() != 0); // want to use it with a non-zero score
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1555 priv.want_dccgrey \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1556 (con.get_grey()); // want to use it for greylisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1557 priv.want_dccbulk \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1558 (con.get_bulk() != 0); // want to use it for bulk detection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1559 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1560 if (st == white) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1561 priv.have_whites = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1562 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1563 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1564 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1565
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1566 sfsistat mlfi_header(SMFICTX* ctx, char* headerf, char* headerv)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1567 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1568 mlfiPriv &priv = *MLFIPRIV;
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	1569 priv.header_count++;
337 d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1570 char *value = headerv;
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1571 if ((priv.header_count < 4) \|\| (strcasecmp(headerf, "from") == 0)) {
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1572 for (size_t i=0; i<strlen(value); i++) {
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1573 if (value[i] < 0x20) value[i] = ' ';
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1574 }
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1575 }
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1576
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1577 if (priv.dkim_ok) {
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1578 if ((priv.header_count == 1) && (strcasecmp(headerf, "DKIM-Filter") != 0)) priv.dkim_ok = false;
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1579 if (priv.header_count == 2) {
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1580 if ((strcasecmp(headerf, "Authentication-Results") == 0) &&
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1581 (strncasecmp(headerv, token_myhostname, strlen(token_myhostname)) == 0)) {
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1582 const int nmatch = 2;
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1583 regmatch_t match[nmatch];
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1584 while (true) {
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1585 if (0 == regexec(&dkim_r_pattern, value, nmatch, match, 0)) {
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1586 int s1 = match[1].rm_so; // domain
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1587 int e1 = match[1].rm_eo;
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1588 if (s1 != -1) {
337 d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1589 char save = value[e1];
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1590 value[e1] = '\0';
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1591 priv.dkim_signers.insert(strdup(value+s1));
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1592 value[e1] = save;
d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1593 value += e1 + 1;
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1594 }
327 51846836ec92 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 326 diff changeset	1595 else break;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1596 }
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1597 else break;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1598 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1599 }
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1600 else if (strcasecmp(headerf, "DKIM-Signature") == 0) {
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1601 const int nmatch = 2;
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1602 regmatch_t match[nmatch];
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1603 if (0 == regexec(&dkim_s_pattern, value, nmatch, match, 0)) {
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1604 int s1 = match[1].rm_so; // domain
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1605 int e1 = match[1].rm_eo;
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1606 if (s1 != -1) {
356 90d433d1382e when extracting header fields, need to preserve the header value since that will be used by subsequent (dcc,spamd,etc) milters Carl Byington <carl@five-ten-sg.com> parents: 354 diff changeset	1607 char save = value[e1];
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1608 value[e1] = '\0';
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1609 priv.dkim_signers.insert(strdup(value+s1));
356 90d433d1382e when extracting header fields, need to preserve the header value since that will be used by subsequent (dcc,spamd,etc) milters Carl Byington <carl@five-ten-sg.com> parents: 354 diff changeset	1610 value[e1] = save;
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1611 }
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1612 }
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1613 }
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1614 else priv.dkim_ok = false;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1615 }
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1616 }
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1617
334 a4f2fda72422 missing ==0 testing for from header, we were scanning all the non-from headers Carl Byington <carl@five-ten-sg.com> parents: 333 diff changeset	1618 // only look at the first from header
358 ef7479b2d64f use the last @domain in the from: header Carl Byington <carl@five-ten-sg.com> parents: 356 diff changeset	1619 // this does NOT fully parse rfc2822 from: headers. In particular, embedded
ef7479b2d64f use the last @domain in the from: header Carl Byington <carl@five-ten-sg.com> parents: 356 diff changeset	1620 // comments and quoted @ are not handled.
335 354b15b8b263 header from may appear very early in unsigned messages Carl Byington <carl@five-ten-sg.com> parents: 334 diff changeset	1621 if ((!priv.fromaddr) && (strcasecmp(headerf, "from") == 0)) {
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1622 const int nmatch = 2;
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1623 regmatch_t match[nmatch];
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	1624 if (0 == regexec(&from_pattern, value, nmatch, match, 0)) {
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1625 int s1 = match[1].rm_so; // domain
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1626 int e1 = match[1].rm_eo;
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1627 if (s1 != -1) {
356 90d433d1382e when extracting header fields, need to preserve the header value since that will be used by subsequent (dcc,spamd,etc) milters Carl Byington <carl@five-ten-sg.com> parents: 354 diff changeset	1628 char save = value[e1];
337 d68fda9be1c1 need to convert nl and tab to spaces in header values before regexec Carl Byington <carl@five-ten-sg.com> parents: 335 diff changeset	1629 value[e1] = '\0';
352 f5a6740cabee need to lowercase the domain extracted from the from header so it will match the keys in dkim_from Carl Byington <carl@five-ten-sg.com> parents: 350 diff changeset	1630 priv.fromaddr = to_lower_string(value+s1, false);
356 90d433d1382e when extracting header fields, need to preserve the header value since that will be used by subsequent (dcc,spamd,etc) milters Carl Byington <carl@five-ten-sg.com> parents: 354 diff changeset	1631 value[e1] = save;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1632 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1633 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1634 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1635
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1636 // headers that avoid autowhitelisting
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1637 if (((strcasecmp(headerf, "precedence") == 0) && (strcasecmp(headerv, "bulk") == 0)) \|\|
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1638 ((strcasecmp(headerf, "content-type") == 0) && (strncasecmp(headerv, "multipart/report", 16) == 0))) {
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1639 priv.allow_autowhitelisting = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1640 }
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1641
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1642 // other headers are only needed for content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1643 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1644 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1645 if (priv.want_spamassassin) priv.assassin->mlfi_header(headerf, headerv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1646 if (priv.want_dccgrey \|\| priv.want_dccbulk) priv.dccifd->mlfi_header(ctx, headerf, headerv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1647 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1648 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1649
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1650 sfsistat mlfi_eoh(SMFICTX* ctx)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1651 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1652 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1653 // delayed autowhitelisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1654 while (!priv.delayer.empty()) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1655 DELAYWHITEP dwp = priv.delayer.front();
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1656 const char *loto = dwp->get_loto();
230 ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1657 if (priv.allow_autowhitelisting) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1658 WHITELISTERP w = dwp->get_w();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1659 CONTEXTP con2 = dwp->get_con();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1660 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1661 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1662 char msg[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1663 snprintf(msg, sizeof(msg), "whitelist reply from <%s> in context %s", loto, con2->get_full_name(buf,maxlen));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1664 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1665 }
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1666 w->sent(loto); // don't free it, the whitelister takes ownership of the string
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1667 }
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1668 else {
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1669 if (debug_syslog > 1) {
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1670 char msg[maxlen];
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1671 snprintf(msg, sizeof(msg), "avoid whitelist reply from <%s> for outgoing auto-responder", loto);
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1672 my_syslog(&priv, msg);
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1673 }
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1674 if (loto) free((void*)loto);// or we free it here
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1675 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1676 delete dwp;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1677 priv.delayer.pop_front();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1678 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1679 // content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1680 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1681 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1682 if (priv.want_spamassassin) priv.assassin->mlfi_eoh();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1683 if (priv.want_dccgrey \|\| priv.want_dccbulk) priv.dccifd->mlfi_eoh();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1684 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1685 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1686
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1687 sfsistat mlfi_body(SMFICTX ctx, u_char data, size_t len)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1688 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1689 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1690 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1691 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1692 if (priv.want_spamassassin) priv.assassin->mlfi_body(data, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1693 if (priv.want_dccgrey \|\| priv.want_dccbulk) priv.dccifd->mlfi_body(data, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1694 priv.scanner->scan(data, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1695 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1696 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1697
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1698 sfsistat mlfi_eom(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1699 {
402 9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1700 sfsistat rc;
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1701 mlfiPriv &priv = *MLFIPRIV;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1702 const char *host = NULL;
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1703 uint32_t ip;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1704 // process end of message
190 004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	1705 priv.eom = true;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1706 if (priv.authenticated \|\| priv.only_whites) rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1707 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1708 // assert env_to not empty, it contains the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1709 // non-whitelisted folks that want content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1710 int score = (priv.want_spamassassin) ? priv.assassin->mlfi_eom() : 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1711 bool grey = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1712 int bulk = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1713 if (priv.want_dccgrey \|\| priv.want_dccbulk) priv.dccifd->mlfi_eom(grey, bulk);
178 d6531c702be3 embedded dcc filtering carl parents: 177 diff changeset	1714
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1715 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1716 string msg;
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1717 string_set unknowns;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1718 bool random = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1719 int limit = 0;
377 7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1720 const char *signer = NULL;
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1721 bool checked_signers = false;
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1722 if (priv.dkim_signers.empty()) {
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1723 snprintf(buf, sizeof(buf), "acceptable content from %s signer *",
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1724 (priv.fromaddr) ? priv.fromaddr : token_asterisk);
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1725 my_syslog(&priv, buf);
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1726 }
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1727 else {
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1728 for (string_set::iterator s=priv.dkim_signers.begin(); s!=priv.dkim_signers.end(); s++) {
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1729 snprintf(buf, sizeof(buf), "acceptable content from %s signer %s",
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1730 (priv.fromaddr) ? priv.fromaddr : token_asterisk, *s);
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1731 my_syslog(&priv, buf);
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1732 }
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1733 }
323 a6de27b0a1e9 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 322 diff changeset	1734
402 9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1735 CONTEXT *con = NULL;
415 16451edcb962 spf code now handles mx,exists,ptr tags, multiple A records, %{i} macro Carl Byington <carl@five-ten-sg.com> parents: 414 diff changeset	1736 const char *st = token_black;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1737 for (context_map::iterator i=priv.env_to.begin(); i!=priv.env_to.end(); i++) {
402 9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1738 const char rcpt = (i).first;
9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1739 CONTEXT next = (i).second;
9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1740 if (con != next) {
9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1741 con = next;
9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1742 st = con->acceptable_content(*priv.memory, score, bulk, priv.queueid, priv.dkim_signers, priv.fromaddr, &priv, msg);
9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1743 }
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1744 if (st == token_black) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1745 // bad html tags or excessive hosts or
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1746 // high spam assassin score or dcc bulk threshold exceedeed
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1747 // or signed by a dkim signer that we don't like
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1748 // or header from requires dkim signer that is missing
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1749 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1750 }
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1751 else if (st == token_unknown) {
377 7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1752 if (!checked_signers) {
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1753 signer = priv.check_uribl_signers();
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1754 checked_signers = true;
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1755 if (signer) {
379 e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1756 snprintf(buf, sizeof(buf), "dkim signer %s listed on %s", signer, priv.uribl_suffix);
377 7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1757 my_syslog(&priv, buf);
379 e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1758 snprintf(buf, sizeof(buf), "Mail rejected - dkim signed by %s listed on %s", signer, priv.uribl_suffix);
377 7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1759 msg = string(buf);
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1760 }
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1761 }
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1762 if (signer) {
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1763 // dkim signer is on the uribl
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1764 smfi_delrcpt(ctx, (char*)rcpt);
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1765 }
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1766 else {
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1767 // still unknown
7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1768 unknowns.insert(rcpt);
402 9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1769 random \|= con->get_host_random();
9096d2676c13 suppress duplicate calls to acceptable_content for messages with multiple recipients using the same filtering context Carl Byington <carl@five-ten-sg.com> parents: 393 diff changeset	1770 limit = max(limit, con->get_host_limit());
377 7fd39f029936 reject if dkim signer is listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 366 diff changeset	1771 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1772 }
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1773 else if (st == token_white) {
379 e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1774 priv.have_whites = true;
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1775 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1776 }
379 e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1777 bool rejecting_unknowns = unknowns.empty();
e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1778 if (!rejecting_unknowns) {
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1779 // check hosts for those recipients
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1780 const char *fmt;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1781 const char *found;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1782 if (check_hosts(priv, random, limit, fmt, host, ip, found)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1783 if (found) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1784 // uribl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1785 snprintf(buf, sizeof(buf), fmt, host, found);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1786 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1787 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1788 // dnsbl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1789 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1790 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1791 inet_ntop(AF_INET, (const u_char *)&ip, adr, sizeof(adr));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1792 snprintf(buf, sizeof(buf), fmt, host, adr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1793 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1794 msg = string(buf);
379 e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1795 rejecting_unknowns = true;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1796 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1797 }
379 e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1798 if (!rejecting_unknowns) {
e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1799 // greylist the unknowns if we don't have any whitelisted recipients
e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1800 if (priv.want_dccgrey && grey && !priv.have_whites) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1801 smfi_setreply(ctx, (char)"452", (char)"4.2.1", (char*)"temporary greylist embargoed");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1802 rc = SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1803 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1804 else rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1805 }
379 e42923f8f3fd better message for dkim signers listed on surbl Carl Byington <carl@five-ten-sg.com> parents: 377 diff changeset	1806 else if (!priv.have_whites) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1807 // can reject the entire message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1808 snprintf(buf, sizeof(buf), "%s", msg.c_str());
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1809 smfi_setreply(ctx, (char)"550", (char)"5.7.1", buf);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1810 rc = SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1811 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1812 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1813 // need to accept it but remove the recipients that don't want it
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1814 for (string_set::iterator i=unknowns.begin(); i!=unknowns.end(); i++) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1815 const char rcpt = i;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1816 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1817 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1818 rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1819 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1820 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1821 // reset for a new message on the same connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1822 mlfi_abort(ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1823 return rc;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1824 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1825
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1826 sfsistat mlfi_abort(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1827 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1828 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1829 priv.reset();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1830 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1831 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1832
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1833 sfsistat mlfi_close(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1834 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1835 mlfiPriv *priv = MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1836 if (!priv) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1837 delete priv;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1838 smfi_setpriv(ctx, NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1839 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1840 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1841
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1842 struct smfiDesc smfilter =
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1843 {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1844 (char*)"DNSBL", // filter name
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1845 SMFI_VERSION, // version code -- do not change
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1846 SMFIF_DELRCPT, // flags
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1847 mlfi_connect, // connection info filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1848 mlfi_helo, // SMTP HELO command filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1849 mlfi_envfrom, // envelope sender filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1850 mlfi_envrcpt, // envelope recipient filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1851 mlfi_header, // header filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1852 mlfi_eoh, // end of header
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1853 mlfi_body, // body block filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1854 mlfi_eom, // end of message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1855 mlfi_abort, // message aborted
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1856 mlfi_close, // connection cleanup
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1857 };
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1858
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1859
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1860 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1861 // reload the config
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1862 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1863 CONFIG* new_conf();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1864 CONFIG* new_conf() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1865 CONFIG *newc = new CONFIG;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1866 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1867 newc->generation = generation++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1868 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1869 if (debug_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1870 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1871 snprintf(buf, sizeof(buf), "loading configuration generation %d", newc->generation);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1872 my_syslog(buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1873 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1874 if (load_conf(*newc, "dnsbl.conf")) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1875 newc->load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1876 return newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1877 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1878 delete newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1879 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1880 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1881
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1882
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1883 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1884 // thread to watch the old config files for changes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1885 // and reload when needed.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1886 // we also clear the SMTP AUTH recipient counts hourly
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1887 //
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1888 extern "C" {void* config_loader(void *arg);}
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1889 void* config_loader(void *arg) {
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1890 int loop1 = 0;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1891 int loop2 = 0;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1892 while (loader_run) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1893 sleep(180); // look for modifications every 3 minutes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1894 if (!loader_run) break;
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1895 loop1++;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1896 loop2++;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1897 if (loop1 == 20) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1898 // three minutes thru each loop, 20 loops per hour
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	1899 // clear the recipient hourly counts and hourly sets of ip connection addresses
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1900 pthread_mutex_lock(&rate_mutex);
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1901 for (rates::iterator i=rcpt_hourly_counts.begin(); i!=rcpt_hourly_counts.end(); i++) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1902 (*i).second = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1903 }
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1904 for (auth_addresses::iterator j=auth_hourly_addresses.begin(); j!=auth_hourly_addresses.end(); j++) {
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1905 delete (*j).second;
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1906 (*j).second = new uint32_t_set;
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1907 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1908 pthread_mutex_unlock(&rate_mutex);
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1909 loop1 = 0;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1910 }
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1911 if (loop2 == 480) {
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1912 // three minutes thru each loop, 480 loops per day
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	1913 // clear the recipient daily counts and daily sets of connection ip addresses
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1914 pthread_mutex_lock(&rate_mutex);
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1915 for (rates::iterator i=rcpt_daily_counts.begin(); i!=rcpt_daily_counts.end(); i++) {
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1916 (*i).second = 0;
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1917 }
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1918 for (auth_addresses::iterator j=auth_daily_addresses.begin(); j!=auth_daily_addresses.end(); j++) {
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1919 delete (*j).second;
382 c378e9d03f37 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 381 diff changeset	1920 (*j).second = new uint32_t_set;
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1921 }
255 d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1922 pthread_mutex_unlock(&rate_mutex);
d6d5c50b9278 Allow dnswl_list and dnsbl_list to be empty, to override lists specified in the ancestor contexts. Add daily recipient limits as a multiple of the hourly limits. Carl Byington <carl@five-ten-sg.com> parents: 252 diff changeset	1923 loop2 = 0;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1924 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1925 CONFIG &dc = *config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1926 time_t then = dc.load_time;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1927 struct stat st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1928 bool reload = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1929 for (string_set::iterator i=dc.config_files.begin(); i!=dc.config_files.end(); i++) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1930 const char fn = i;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1931 if (stat(fn, &st)) reload = true; // file disappeared
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1932 else if (st.st_mtime > then) reload = true; // file modified
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1933 if (reload) break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1934 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1935 if (reload) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1936 CONFIG *newc = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1937 if (newc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1938 // replace the global config pointer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1939 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1940 CONFIG *pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1941 bool last = pc && (!pc->reference_count);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1942 config = newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1943 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1944 if (last) delete pc; // there were no references to this config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1945 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1946 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1947 // failed to load new config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1948 my_syslog("failed to load new configuration");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1949 system("echo 'failed to load new dnsbl configuration from /etc/dnsbl' \| mail -s 'error in /etc/dnsbl configuration' root");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1950 // update the load time on the current config to prevent complaining every 3 minutes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1951 dc.load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1952 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1953 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1954 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1955 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1956 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1957
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1958
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1959 void usage(const char *prog);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1960 void usage(const char *prog)
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1961 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1962 fprintf(stderr, "Usage: %s [-d [level]] [-c] [-s] [-e from\|to] [-b dccifd-addr] -r port -p sm-sock-addr [-t timeout]\n", prog);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1963 fprintf(stderr, "where dccifd_addr is for the connection to dccifd\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1964 fprintf(stderr, " and should be local-domain-socket-file-name\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1965 fprintf(stderr, "where port is for the connection to our own dns resolver processes\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1966 fprintf(stderr, " and should be local-domain-socket-file-name\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1967 fprintf(stderr, "where sm-sock-addr is for the connection to sendmail\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1968 fprintf(stderr, " and should be one of\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1969 fprintf(stderr, " inet:port@ip-address\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1970 fprintf(stderr, " local:local-domain-socket-file-name\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1971 fprintf(stderr, "-c will load and dump the config to stdout\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1972 fprintf(stderr, "-s will stress test the config loading code by repeating the load/free cycle\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1973 fprintf(stderr, " in an infinte loop.\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1974 fprintf(stderr, "-d will set the syslog message level, currently 0 to 3\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1975 fprintf(stderr, "-e will print the results of looking up the from and to addresses in the\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1976 fprintf(stderr, " current config. The \| character is used to separate the from and to\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1977 fprintf(stderr, " addresses in the argument to the -e switch\n");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1978 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1979
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1980
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1981
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1982 void setup_socket(const char *sock);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1983 void setup_socket(const char *sock) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1984 unlink(sock);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1985 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1986
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1987
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1988 /*
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1989 * The signal handler function -- only gets called when a SIGCHLD
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1990 * is received, ie when a child terminates
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1991 */
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1992 void sig_chld(int signo)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1993 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1994 int status;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1995 /* Wait for any child without blocking */
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1996 while (waitpid(-1, &status, WNOHANG) > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1997 // ignore child exit status, we only do this to cleanup zombies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1998 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1999 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2000
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2001
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2002 int main(int argc, char**argv)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2003 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2004 token_init();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2005 bool check = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2006 bool stress = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2007 bool setconn = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2008 bool setreso = false;
244 ef97c7cd4a6e const correctness fixes from new gcc, libresolv.a moved to glibc-static on newer distributions Carl Byington <carl@five-ten-sg.com> parents: 242 diff changeset	2009 char *email = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2010 int c;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2011 const char *args = "b:r:p:t:e:d:chs";
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2012 extern char *optarg;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2013
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	2014 // setup srs coding detection
296 05b604c99e06 allow broken SRS0+ rather than the correct SRS0= tag Carl Byington <carl@five-ten-sg.com> parents: 293 diff changeset	2015 if (regcomp(&srs_pattern, "^srs(0\|1)(=\|\\+)([^=]+)=([^=]+)=([^=]+)=([^@]+)@", REG_ICASE \| REG_EXTENDED)) {
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	2016 printf("cannot compile regex pattern to find srs coding in mail addresses\n");
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	2017 exit(3);
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	2018 }
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	2019
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	2020 // setup prvs coding detection
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	2021 if (regcomp(&prvs_pattern, "^prvs=([^=]+)=(.+)$", REG_ICASE \| REG_EXTENDED)) {
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	2022 printf("cannot compile regex pattern to find prvs coding in mail addresses\n");
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	2023 exit(3);
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	2024 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	2025
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	2026 // setup dkim results signature detection
366 9fc05f3a824f allow upstream opendkim header to be wrapped Carl Byington <carl@five-ten-sg.com> parents: 364 diff changeset	2027 if (regcomp(&dkim_r_pattern, "\\sdkim=pass\\s.[0-9]-bit key.\\s*header.d=([^ ]+)\\s", REG_ICASE \| REG_EXTENDED)) {
364 df45a2377632 allow upstream opendkim header to be wrapped Carl Byington <carl@five-ten-sg.com> parents: 358 diff changeset	2028 printf("cannot compile regex pattern to find dkim results signatures\n");
350 f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	2029 exit(3);
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	2030 }
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	2031
f4ca91f49cb6 send the original mail from address to the verify server, not the srs/pvrs unwrapped version; recognize our own dkim signatures Carl Byington <carl@five-ten-sg.com> parents: 348 diff changeset	2032 // setup dkim results signature detection
364 df45a2377632 allow upstream opendkim header to be wrapped Carl Byington <carl@five-ten-sg.com> parents: 358 diff changeset	2033 if (regcomp(&dkim_s_pattern, "\\sd=([^;]+);", REG_ICASE \| REG_EXTENDED)) {
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2034 printf("cannot compile regex pattern to find dkim signatures\n");
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2035 exit(3);
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2036 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2037
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2038 // setup from domain extraction
358 ef7479b2d64f use the last @domain in the from: header Carl Byington <carl@five-ten-sg.com> parents: 356 diff changeset	2039 if (regcomp(&from_pattern, ".*@([a-zA-Z0-9.-]+)", REG_ICASE \| REG_EXTENDED)) {
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2040 printf("cannot compile regex pattern to find dkim signatures\n");
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2041 exit(3);
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2042 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	2043
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2044 // Process command line options
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2045 while ((c = getopt(argc, argv, args)) != -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2046 switch (c) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2047 case 'b':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2048 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2049 fprintf(stderr, "Illegal dccifd socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2050 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2051 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2052 dccifd_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2053 break;
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	2054
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2055 case 'r':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2056 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2057 fprintf(stderr, "Illegal resolver socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2058 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2059 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2060 resolver_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2061 setup_socket(resolver_port);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2062 setreso = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2063 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2064
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2065 case 'p':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2066 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2067 fprintf(stderr, "Illegal sendmail socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2068 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2069 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2070 if (smfi_setconn(optarg) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2071 fprintf(stderr, "smfi_setconn failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2072 exit(EX_SOFTWARE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2073 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2074 if (strncasecmp(optarg, "unix:", 5) == 0) setup_socket(optarg + 5);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2075 else if (strncasecmp(optarg, "local:", 6) == 0) setup_socket(optarg + 6);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2076 setconn = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2077 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2078
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2079 case 't':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2080 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2081 fprintf(stderr, "Illegal timeout: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2082 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2083 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2084 if (smfi_settimeout(atoi(optarg)) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2085 fprintf(stderr, "smfi_settimeout failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2086 exit(EX_SOFTWARE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2087 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2088 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2089
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2090 case 'e':
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	2091 if (email) free((void*)email);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2092 email = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2093 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2094
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2095 case 'c':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2096 check = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2097 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2098
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2099 case 's':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2100 stress = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2101 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2102
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2103 case 'd':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2104 if (optarg == NULL \|\| *optarg == '\0') debug_syslog = 1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2105 else debug_syslog = atoi(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2106 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2107
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2108 case 'h':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2109 default:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2110 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2111 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2112 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2113 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2114
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2115 if (check) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2116 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2117 debug_syslog = 10;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2118 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2119 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2120 conf->dump();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2121 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2122 clear_strings(); // for valgrind checking
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2123 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2124 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2125 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2126 return 1; // config failed to load
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2127 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2128 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2129
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2130 if (stress) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2131 fprintf(stdout, "stress testing\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2132 while (1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2133 for (int i=0; i<10; i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2134 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2135 if (conf) delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2136 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2137 fprintf(stdout, ".");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2138 fflush(stdout);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2139 sleep(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2140 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2141 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2142
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2143 if (email) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2144 char *x = strchr(email, '\|');
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2145 if (x) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2146 *x = '\0';
236 c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	2147 const char *from = to_lower_string(email);
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	2148 const char *to = to_lower_string(x+1);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2149 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2150 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2151 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2152 CONTEXTP con = conf->find_context(to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2153 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2154 fprintf(stdout, "envelope to <%s> finds context %s\n", to, con->get_full_name(buf,maxlen));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2155 CONTEXTP fc = con->find_context(from);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2156 fprintf(stdout, "envelope from <%s> finds context %s\n", from, fc->get_full_name(buf,maxlen));
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	2157 const char *st = fc->find_from(from);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2158 fprintf(stdout, "envelope from <%s> finds status %s\n", from, st);
216 784030ac71f1 Never whitelist self addressed mail. Changes for Fedora 10 and const correctness. Carl Byington <carl@five-ten-sg.com> parents: 214 diff changeset	2159 bool self = (strcmp(from, to) == 0);
784030ac71f1 Never whitelist self addressed mail. Changes for Fedora 10 and const correctness. Carl Byington <carl@five-ten-sg.com> parents: 214 diff changeset	2160 if ((st == token_white) && self) fprintf(stdout, "ignore self whitelisting\n");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2161 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2162 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2163 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2164 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2165 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2166
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2167 if (!setconn) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2168 fprintf(stderr, "%s: Missing required -p argument\n", argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2169 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2170 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2171 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2172
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2173 if (!setreso) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2174 fprintf(stderr, "%s: Missing required -r argument\n", argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2175 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2176 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2177 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2178
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2179 if (smfi_register(smfilter) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2180 fprintf(stderr, "smfi_register failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2181 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2182 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2183
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2184 // switch to background mode
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2185 if (daemon(1,0) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2186 fprintf(stderr, "daemon() call failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2187 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2188 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2189
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2190 // write the pid
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2191 const char *pidpath = "/var/run/dnsbl.pid";
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2192 unlink(pidpath);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2193 FILE *f = fopen(pidpath, "w");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2194 if (f) {
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2195 #ifdef linux
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2196 // from a comment in the DCC source code:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2197 // Linux threads are broken. Signals given the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2198 // original process are delivered to only the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2199 // thread that happens to have that PID. The
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2200 // sendmail libmilter thread that needs to hear
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2201 // SIGINT and other signals does not, and that breaks
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2202 // scripts that need to stop milters.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2203 // However, signaling the process group works.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2204 fprintf(f, "-%d\n", (u_int)getpgrp());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2205 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2206 fprintf(f, "%d\n", (u_int)getpid());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2207 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2208 fclose(f);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2209 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2210
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2211 // initialize the thread sync objects
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2212 pthread_mutex_init(&config_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2213 pthread_mutex_init(&syslog_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2214 pthread_mutex_init(&resolve_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2215 pthread_mutex_init(&fd_pool_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2216 pthread_mutex_init(&verifier_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2217 pthread_mutex_init(&whitelister_mutex, 0);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2218
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2219 // drop root privs
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2220 struct passwd *pw = getpwnam("dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2221 if (pw) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2222 if (setgid(pw->pw_gid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2223 my_syslog("failed to switch to group dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2224 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2225 if (setuid(pw->pw_uid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2226 my_syslog("failed to switch to user dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2227 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2228 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2229
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2230 // load the initial config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2231 config = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2232 if (!config) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2233 my_syslog("failed to load initial configuration, quitting");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2234 exit(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2235 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2236
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2237 // fork off the resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2238 pid_t child = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2239 if (child < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2240 my_syslog("failed to create resolver listener process");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2241 exit(0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2242 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2243 if (child == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2244 // we are the child - dns resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2245 resolver_socket = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2246 if (resolver_socket < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2247 my_syslog("child failed to create resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2248 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2249 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2250 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2251 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2252 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2253 strncpy(server.sun_path, resolver_port, sizeof(server.sun_path)-1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2254 //try to bind the address to the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2255 if (bind(resolver_socket, (sockaddr *)&server, sizeof(server)) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2256 // bind failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2257 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2258 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2259 my_syslog("child failed to bind resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2260 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2261 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2262 //listen on the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2263 if (listen(resolver_socket, 10) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2264 // listen failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2265 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2266 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2267 my_syslog("child failed to listen to resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2268 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2269 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2270 // setup sigchld handler to prevent zombies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2271 struct sigaction act;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2272 act.sa_handler = sig_chld; // Assign sig_chld as our SIGCHLD handler
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2273 sigemptyset(&act.sa_mask); // We don't want to block any other signals in this example
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2274 act.sa_flags = SA_NOCLDSTOP; // only want children that have terminated
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2275 if (sigaction(SIGCHLD, &act, NULL) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2276 my_syslog("child failed to setup SIGCHLD handler");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2277 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2278 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2279 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2280 sockaddr_un client;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2281 socklen_t clientlen = sizeof(client);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2282 int s = accept(resolver_socket, (sockaddr *)&client, &clientlen);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2283 if (s > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2284 // accept worked, it did not get cancelled before we could accept it
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2285 // fork off a process to handle this connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2286 int newchild = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2287 if (newchild == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2288 // this is the worker process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2289 // child does not need the listening socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2290 close(resolver_socket);
220 495cfe5caead try to allow mixed -lresolv and libresolv.a for ns_parserr Carl Byington <carl@five-ten-sg.com> parents: 216 diff changeset	2291 #ifdef NS_PACKETSZ
495cfe5caead try to allow mixed -lresolv and libresolv.a for ns_parserr Carl Byington <carl@five-ten-sg.com> parents: 216 diff changeset	2292 res_init();
495cfe5caead try to allow mixed -lresolv and libresolv.a for ns_parserr Carl Byington <carl@five-ten-sg.com> parents: 216 diff changeset	2293 _res.retry = 2;
495cfe5caead try to allow mixed -lresolv and libresolv.a for ns_parserr Carl Byington <carl@five-ten-sg.com> parents: 216 diff changeset	2294 _res.retrans = RES_TIMEOUT;
393 dffedbdc8566 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 390 diff changeset	2295 #ifdef RES_USE_EDNS0
389 aa9795b407e8 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 388 diff changeset	2296 _res.options \|= RES_USE_EDNS0;
220 495cfe5caead try to allow mixed -lresolv and libresolv.a for ns_parserr Carl Byington <carl@five-ten-sg.com> parents: 216 diff changeset	2297 #endif
393 dffedbdc8566 start parsing spf txt records Carl Byington <carl@five-ten-sg.com> parents: 390 diff changeset	2298 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2299 process_resolver_requests(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2300 exit(0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2301 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2302 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2303 // this is the parent
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2304 // parent does not need the accepted socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2305 close(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2306 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2307 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2308 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2309 exit(0); // make sure we don't fall thru.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2310 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2311 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2312 sleep(2); // allow child to get started
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2313 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2314
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2315 // only create threads after the fork() in daemon
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2316 pthread_t tid;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2317 if (pthread_create(&tid, 0, config_loader, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2318 my_syslog("failed to create config loader thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2319 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2320 my_syslog("failed to detach config loader thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	2321
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2322 if (pthread_create(&tid, 0, verify_closer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2323 my_syslog("failed to create verify closer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2324 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2325 my_syslog("failed to detach verify closer thread");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2326
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2327 if (pthread_create(&tid, 0, whitelister_writer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2328 my_syslog("failed to create autowhite writer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2329 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2330 my_syslog("failed to detach autowhite writer thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	2331
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2332 time_t starting = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2333 int rc = smfi_main();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2334 if ((rc != MI_SUCCESS) && (time(NULL) > starting+5*60)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2335 my_syslog("trying to restart after smfi_main()");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2336 loader_run = false; // eventually the config loader thread will terminate
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2337 execvp(argv[0], argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2338 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2339 exit((rc == MI_SUCCESS) ? 0 : EX_UNAVAILABLE);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2340 }

Mercurial > dnsbl

annotate src/dnsbl.cpp @ 418:ea4f86e2db42