dnsbl: src/dnsbl.cpp annotate

annotate src/dnsbl.cpp @ 349:3c39051699bd

Added tag stable-6-0-48 for changeset 8fe6d5120771

author	Carl Byington <carl@five-ten-sg.com>
date	Fri, 23 Dec 2016 09:47:40 -0800
parents	8fe6d5120771
children	f4ca91f49cb6

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
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	101 regex_t dkim_pattern; // used to detect dkim signatures in authentication header generated by the upstream opendkim milter
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	102 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	103
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	104 pthread_mutex_t config_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	105 pthread_mutex_t syslog_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	106 pthread_mutex_t resolve_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	107 pthread_mutex_t fd_pool_mutex;
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	108 pthread_mutex_t rate_mutex;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	109
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	110 std::set<int> fd_pool;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	111 int NULL_SOCKET = -1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	112 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	113 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	114 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	115 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	116 time_t last_error_time = 0;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	117 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	118 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	119 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	120 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	121 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	122 auth_addresses auth_daily_addresses; // protected with rate_mutex
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	123
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	124
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	125 struct ns_map {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	126 // all the strings are owned by the keys/values in the ns_host string map
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	127 string_map ns_host; // nameserver name -> host name that uses this name server
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	128 ns_mapper ns_ip; // nameserver name -> ipv4 address of the name server
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	129 ~ns_map();
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	130 void add(const char name, const char refer);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	131 };
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	132
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	133
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	134 ns_map::~ns_map() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	135 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	136 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	137 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	138 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	139 free((void*)y);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	140 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	141 ns_ip.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	142 ns_host.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	143 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	144
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	145
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	146 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	147 string_map::iterator i = ns_host.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	148 if (i != ns_host.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	149 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	150 char *y = strdup(refer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	151 ns_ip[x] = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	152 ns_host[x] = y;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	153
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	154 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	155
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	156 // packed structure to allow a single socket write to dump the
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	157 // length and the following answer. The packing attribute is gcc specific.
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	158 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	159 size_t length;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	160 #ifdef NS_PACKETSZ
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	161 u_char answer[NS_PACKETSZ*4]; // with a resolver, we return resolver answers
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	162 #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	163 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	164 #endif
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	165 } __attribute__ ((packed));
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	166
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	167
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	168 ////////////////////////////////////////////////
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	169 // helper to manipulate recipient counts
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	170 //
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 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	172 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	173 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	174 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	175 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	176 if (i == rcpt_hourly_counts.end()) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	177 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	178 rcpt_hourly_counts[user] = hourly;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	179 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	180 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	181 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	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
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	184 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	185 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	186 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	187 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	188 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	189 }
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	190 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	191 daily = ++((*j).second);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	192 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	193 pthread_mutex_unlock(&rate_mutex);
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	194 }
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	195
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	196
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	197 void add_auth_address(const char *user, int &hourly, int &daily, int32_t 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 void add_auth_address(const char *user, int &hourly, int &daily, int32_t ip) {
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	199 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	200 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	201 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	202 user = strdup(user);
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	203 auth_hourly_addresses[user] = new int32_t_set;
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	204 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	205 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	206 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	207 else {
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	208 int32_t_set::iterator k = ((*i).second)->find(ip);
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	209 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	210 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	211 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	212
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	213 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	214 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	215 user = strdup(user);
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	216 auth_daily_addresses[user] = new int32_t_set;
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	217 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	218 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	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 else {
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	221 int32_t_set::iterator k = ((*j).second)->find(ip);
2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	222 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	223 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	224 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	225 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	226 }
368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	227
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	228 ////////////////////////////////////////////////
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	229 // helper to discard the strings held by a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	230 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	231 void discard(context_map &cm);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	232 void discard(context_map &cm) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	233 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	234 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	235 free((void*)x);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	236 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	237 cm.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	238 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	239
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	240
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	241 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	242 // helper to register a string in a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	243 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	244 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	245 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	246 context_map::iterator i = cm.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	247 if (i != cm.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	248 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	249 cm[x] = con;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	250 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	251
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	252
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	253 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	254 // disconnect the fd from the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	255 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	256 void my_disconnect(int sock, bool decrement = true);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	257 void my_disconnect(int sock, bool decrement) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	258 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	259 if (decrement) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	260 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	261 resolver_sock_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	262 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	263 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	264 shutdown(sock, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	265 close(sock);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	266 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	267 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	268
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	269
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	270 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	271 // return fd connected to the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	272 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	273 int my_connect();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	274 int my_connect() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	275 // 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	276 if ((time(NULL) - last_error_time) < ERROR_SOCKET_TIME) return NULL_SOCKET;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	277
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	278 // nothing recent, maybe this time it will work
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	279 int sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	280 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	281 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	282 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	283 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	284 sock = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	285 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	286 bool rc = (connect(sock, (sockaddr *)&server, sizeof(server)) == 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	287 if (!rc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	288 my_disconnect(sock, false);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	289 sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	290 last_error_time = time(NULL);
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 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	293 else last_error_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	294 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	295 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	296 resolver_sock_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	297 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	298 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	299 return sock;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	300 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	301
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	302
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	303 ////////////////////////////////////////////////
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	304 // ask a dns question and get an A record answer in network byte order
836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	305 // 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	306 // If we cannot get an answer, we just accept the mail.
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 //
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	308 //
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	309 uint32_t dns_interface(mlfiPriv &priv, const char question, bool maybe_ip, ns_map nameservers);
836b7f2357f9 need ntohl() before using masks that are defined in host byte order Carl Byington <carl@five-ten-sg.com> parents: 249 diff changeset	310 uint32_t dns_interface(mlfiPriv &priv, const char question, bool maybe_ip, ns_map nameservers) {
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.
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	320 if (maybe_ip) {
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	321 // might be a bare ip address, try this first to avoid dns lookups that may not be needed
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	322 in_addr ip;
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	323 if (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	324 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	325 }
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	326 }
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	327 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	328 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	329 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	330 }
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 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	332 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	333 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	334 }
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	335 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	336 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	337 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	338 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	339 #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	340 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	341 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	342 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	343 #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	344 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	345 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	346 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	347 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	348 }
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 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	350
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 #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	352 // 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	353 // 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	354 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	355 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	356 // 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	357 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	358 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	359 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	360 // 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	361 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	362 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	363 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	364 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	365 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	366 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	367 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	368 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	369 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	370 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	371 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	372 // 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	373 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	374 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	375 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	376 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	377 }
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 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	379 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	380 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	381 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	382 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	383 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	384 *(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	385 }
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 (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	388 *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	389 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	390 }
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 }
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 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	393 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	394 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	395 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	396 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	397 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	398 // 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	399 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	400 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	401 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	402 }
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 }
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 }
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 }
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 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	407 while (ns_parserr(&handle, ns_s_an, 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	408 if (ns_rr_type(rr) == ns_t_a) {
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	409 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	410 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	411 ret_address = 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	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 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	416 #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	417 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	418 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	419 #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	420 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	421 #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	422 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	423 #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	424 }
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	425
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	426
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	427 ////////////////////////////////////////////////
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	428 // 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	429 //
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	430 // 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	431 // 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	432 // 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	433 //
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	434 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	435 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	436 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	437 snprintf(buf, sizeof(buf), "%s.%s.", hostname, priv.uribl_suffix);
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	438 uint32_t ip = ntohl(dns_interface(priv, buf, false, NULL));
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	439 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	440 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	441 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	442 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	443 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	444 }
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	445 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	446 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	447 }
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	448 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	449 }
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	450
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	451
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	452 ////////////////////////////////////////////////
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	453 // 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	454 // -------------
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	455 // 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	456 // 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	457 // 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	458 // 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	459 // 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	460 //
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	461 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	462 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	463 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	464 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	465 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	466 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	467 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	468 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	469 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	470 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	471 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	472 }
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	473 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	474 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	475 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	476 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	477 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	478 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	479 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	480 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	481 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	482 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	483 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	484 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	485 }
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	486 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	487 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	488 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	489 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	490 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	491 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	492 }
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	493 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	494 }
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	495 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	496 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	497 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	498 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	499 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	500 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	501 }
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 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	503 }
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 }
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	505 }
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	506 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	507 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	508 }
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	509 }
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 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	511 }
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	512
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	513
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	514 mlfiPriv::mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	515 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	516 pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	517 pc->reference_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	518 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	519 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	520 ctx = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	521 eom = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	522 ip = 0;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	523 helo = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	524 mailaddr = NULL;
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	525 fromaddr = NULL;
e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	526 header_count = 0;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	527 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	528 queueid = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	529 authenticated = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	530 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	531 client_dns_name = NULL;
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	532 client_dns_forged = false;
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	533 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	534 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	535 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	536 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	537 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	538 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	539 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	540 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	541 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	542 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	543 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	544 memory = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	545 scanner = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	546 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	547 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	548 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	549 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	550 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	551 assassin = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	552 dccifd = NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	553 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	554
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	555 mlfiPriv::~mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	556 return_fd();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	557 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	558 pc->reference_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	559 bool last = (!pc->reference_count) && (pc != config);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	560 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	561 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	562 if (helo) free((void*)helo);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	563 reset(true);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	564 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	565
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	566 void mlfiPriv::reset(bool final) {
194 688ec12a3c0c delay autowhitelisting to avoid out of office reply bots carl parents: 193 diff changeset	567 while (!delayer.empty()) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	568 DELAYWHITEP dwp = delayer.front();
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	569 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	570 if (loto) free((void*)loto);
193 3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	571 delete dwp;
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	572 delayer.pop_front();
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	573 }
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	574 if (mailaddr) free((void*)mailaddr);
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	575 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	576 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	577 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	578 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	579 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	580 discard(dkim_signers);
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	581 discard(hosts_uribl);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	582 delayer.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	583 discard(env_to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	584 if (memory) delete memory;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	585 if (scanner) delete scanner;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	586 if (assassin) delete assassin;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	587 if (dccifd) delete dccifd;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	588 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	589 ctx = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	590 eom = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	591 mailaddr = NULL;
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	592 fromaddr = NULL;
e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	593 header_count = 0;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	594 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	595 queueid = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	596 authenticated = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	597 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	598 client_dns_name = NULL;
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	599 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	600 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	601 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	602 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	603 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	604 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	605 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	606 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	607 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	608 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	609 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	610 memory = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	611 scanner = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	612 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	613 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	614 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	615 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	616 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	617 assassin = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	618 dccifd = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	619 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	620 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	621
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	622 void mlfiPriv::get_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	623 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	624 fd = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	625 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	626 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	627 std::set<int>::iterator i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	628 i = fd_pool.begin();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	629 if (i != fd_pool.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	630 // have at least one fd in the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	631 err = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	632 fd = *i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	633 fd_pool.erase(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	634 resolver_pool_size--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	635 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	636 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	637 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	638 // pool is empty, get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	639 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	640 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	641 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	642 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	643 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	644 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	645 // cannot lock the pool, just get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	646 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	647 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	648 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	649 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	650
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	651 void mlfiPriv::return_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	652 if (err) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	653 // 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	654 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	655 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	656 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	657 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	658 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	659 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	660 // return the fd to the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	661 fd_pool.insert(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	662 resolver_pool_size++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	663 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	664 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	665 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	666 // 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	667 // 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	668 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	669 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	670 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	671 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	672 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	673 // 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	674 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	675 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	676 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	677 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	678
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	679 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	680 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	681 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	682 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	683 size_t ws = write(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	684 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	685 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	686 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	687 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	688 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	689 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	690 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	691 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	692 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	693 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	694 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	695 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	696 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	697 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	698
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	699 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	700 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	701 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	702 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	703 size_t ws = read(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	704 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	705 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	706 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	707 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	708 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	709 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	710 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	711 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	712 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	713 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	714 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	715 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	716 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	717 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	718
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	719 void mlfiPriv::need_content_filter(const char *rcpt, CONTEXT &con) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	720 if (!memory) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	721 // first recipient that needs content filtering sets
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	722 // 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	723 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	724 scanner = new url_scanner(memory);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	725 content_suffix = con.get_content_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	726 content_message = con.get_content_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	727 uribl_suffix = con.get_uribl_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	728 uribl_message = con.get_uribl_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	729 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	730 // 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	731 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	732 if (helo) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	733 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	734 }
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	735 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	736 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	737 }
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	738 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	739 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	740 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	741 }
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	742 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	743 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	744 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	745
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	746
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	747 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx);
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	748 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	749 {
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	750 mlfiPriv priv = (struct mlfiPriv )smfi_getpriv(ctx);
187 f0eda59e8afd fix null pointer dereference from missing HELO command carl parents: 186 diff changeset	751 priv->ctx = ctx;
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	752 return priv;
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	753 }
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	754 #define MLFIPRIV fetch_priv_from_ctx(ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	755
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	756
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	757
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	758 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	759 // syslog a message
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	760 //
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	761 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	762 char buf[maxlen];
311 f5547e7b3a09 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 310 diff changeset	763 if (queueid && queueid[0]) {
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	764 snprintf(buf, sizeof(buf), "%s: %s", queueid, text);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	765 text = buf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	766 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	767 if (use_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	768 pthread_mutex_lock(&syslog_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	769 if (!syslog_opened) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	770 openlog("dnsbl", LOG_PID, LOG_MAIL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	771 syslog_opened = true;
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 syslog(LOG_NOTICE, "%s", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	774 pthread_mutex_unlock(&syslog_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	775 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	776 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	777 printf("%s \n", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	778 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	779 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	780
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	781 void my_syslog(mlfiPriv priv, const char text) {
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	782 if (priv) my_syslog(priv->queueid, text);
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	783 else my_syslog((const char *)NULL, text);
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	784 }
802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	785
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	786 void my_syslog(mlfiPriv *priv, const string text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	787 if (debug_syslog > 3) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	788 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	789 strncpy(buf, text.c_str(), sizeof(buf));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	790 buf[maxlen-1] = '\0'; // ensure null termination
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	791 my_syslog(priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	792 }
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	793 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	794
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	795 void my_syslog(const char *text) {
310 802e2b779ed1 enable smtp verify logging Carl Byington <carl@five-ten-sg.com> parents: 301 diff changeset	796 my_syslog((const char *)NULL, text);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	797 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	798
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	799
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	800 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	801 // 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	802 // write the result back to the socket.
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	803
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	804 void process_resolver_requests(int socket);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	805 void process_resolver_requests(int socket) {
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	806 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	807 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	808 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	809 char question[1000];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	810 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	811 glommer glom;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	812
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	813 int maxq = sizeof(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	814 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	815 // read a question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	816 int rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	817 while (rs < maxq) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	818 int ns = read(socket, question+rs, maxq-rs);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	819 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	820 rs += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	821 if (question[rs-1] == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	822 // 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	823 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	824 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	825 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	826 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	827 // peer closed the socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	828 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	829 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	830 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	831 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	832 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	833 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	834 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	835 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	836 question[rs-1] = '\0'; // ensure null termination
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	837
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	838 // find the answer
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	839 #ifdef NS_PACKETSZ
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	840 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	841 char text[1000];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	842 snprintf(text, sizeof(text), "process_resolver_requests() has a question %s", question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	843 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	844 #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	845 int res_result = res_search(question, ns_c_in, ns_t_a, glom.answer, sizeof(glom.answer));
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	846 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	847 else glom.length = (size_t)res_result;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	848 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	849 glom.length = sizeof(glom.answer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	850 glom.answer = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	851 struct hostent *host = gethostbyname(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	852 if (host && (host->h_addrtype == AF_INET)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	853 memcpy(&glom.answer, host->h_addr, sizeof(glom.answer));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	854 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	855 #endif
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	856
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	857 // write the answer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	858 char buf = (char )&glom;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	859 int len = glom.length + sizeof(glom.length);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	860 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	861 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	862 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	863 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	864 int ws = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	865 while (len > ws) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	866 int ns = write(socket, buf+ws, len-ws);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	867 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	868 ws += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	869 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	870 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	871 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	872 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	873 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	874 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	875 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	876 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	877 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	878 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	879 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	880 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	881 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	882
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	883
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	884 ////////////////////////////////////////////////
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	885 // check a single dns list, return ip address in network byte order
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	886 //
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	887 uint32_t check_single(mlfiPriv &priv, int32_t ip, const char *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	888 uint32_t check_single(mlfiPriv &priv, int32_t ip, const char *suffix) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	889 // make a dns question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	890 const u_char src = (const u_char )&ip;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	891 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	892 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	893 if ((src[0] == 192) && (src[1] == 168)) return 0;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	894 if ((src[0] == 172) && (16 <= src[1]) && (src[1] <= 31)) return 0;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	895 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	896 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	897 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	898 char question[1000];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	899 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	900 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	901 // ask the question, if we get an A record it implies a blacklisted ip address
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	902 return dns_interface(priv, question, false, NULL);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	903 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	904
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	905
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	906 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	907 // check a single dnsbl
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	908 //
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	909 bool check_single(mlfiPriv &priv, int32_t ip, DNSBL &bl);
d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	910 bool check_single(mlfiPriv &priv, int32_t ip, DNSBL &bl) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	911 return check_single(priv, ip, bl.suffix);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	912 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	913
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	914
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	915 ////////////////////////////////////////////////
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	916 // check a single dnswl
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	917 //
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	918 bool check_single(mlfiPriv &priv, int32_t ip, DNSWL &wl);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	919 bool check_single(mlfiPriv &priv, int32_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	920 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	921 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	922 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	923 uint32_t m2 = (uint32_t)0x000000ff;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	924 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	925 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	926 if ((int)l >= wl.level) return true;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	927 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	928 return false;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	929 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	930
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	931
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	932 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	933 // check the dnsbls specified for this recipient
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	934 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	935 bool check_dnsbl(mlfiPriv &priv, dnsblp_list &dnsbll, DNSBLP &rejectlist);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	936 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	937 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	938 DNSBLP dp = *i; // non null by construction
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	939 bool st;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	940 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	941 if (f == priv.checked_black.end()) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	942 // have not checked this list yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	943 st = check_single(priv, priv.ip, *dp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	944 rejectlist = dp;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	945 priv.checked_black[dp] = st;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	946 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	947 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	948 st = (*f).second;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	949 rejectlist = (*f).first;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	950 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	951 if (st) return st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	952 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	953 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	954 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	955
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	956
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	957 ////////////////////////////////////////////////
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	958 // check the dnswls specified for this recipient
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	959 //
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	960 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	961 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	962 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	963 DNSWLP dp = *i; // non null by construction
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	964 bool st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	965 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	966 if (f == priv.checked_white.end()) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	967 // have not checked this list yet
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	968 st = check_single(priv, priv.ip, *dp);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	969 acceptlist = dp;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	970 priv.checked_white[dp] = st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	971 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	972 else {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	973 st = (*f).second;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	974 acceptlist = (*f).first;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	975 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	976 if (st) return st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	977 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	978 return false;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	979 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	980
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	981
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	982 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	983 // check the hosts from the body against the content filter and uribl dnsbls
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	984 //
124 ea6f9c812faa put hostname in smtp message for uribl style lookups carl parents: 123 diff changeset	985 //
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	986 bool check_hosts(mlfiPriv &priv, bool random, int limit, const char &msg, const char &host, int32_t &ip, const char *&found);
d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	987 bool check_hosts(mlfiPriv &priv, bool random, int limit, const char &msg, const char &host, int32_t &ip, const char *&found) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	988 found = NULL; // normally ip address style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	989 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	990 string_set &hosts = priv.memory->get_hosts();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	991 string_set &ignore = *priv.content_host_ignore;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	992
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	993 int count = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	994 int cnt = hosts.size(); // number of hosts we could look at
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	995 int32_t_set ips;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	996 ns_map nameservers;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	997 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	998 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	999
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1000 // 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	1001 string_set::iterator j = ignore.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1002 if (j != ignore.end()) continue;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1003
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1004 // 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	1005 if ((cnt > limit) && (limit > 0) && random) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1006 int r = rand() % cnt;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1007 if (r >= limit) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1008 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1009 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1010 snprintf(buf, sizeof(buf), "host %s skipped", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1011 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1012 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1013 continue;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1014 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1015 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1016 count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1017 ip = dns_interface(priv, host, true, &nameservers);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1018 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1019 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1020 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1021 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1022 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1023 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	1024 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	1025 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1026 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1027 snprintf(buf, sizeof(buf), "host %s not found", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1028 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1029 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1030 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1031 if (ip) {
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	1032 int32_t_set::iterator i = ips.find(ip);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1033 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1034 // we haven't looked this up yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1035 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1036 // check dnsbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1037 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	1038 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1039 return true;
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 // Check uribl & surbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1042 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	1043 msg = priv.uribl_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1044 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1045 }
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 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1048 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1049 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	1050 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	1051 count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1052 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	1053 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	1054 ip = (*i).second;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1055 if (!ip) ip = dns_interface(priv, host, false, NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1056 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1057 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1058 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1059 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1060 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1061 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	1062 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	1063 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1064 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1065 snprintf(buf, sizeof(buf), "ns %s not found", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1066 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1067 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1068 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1069 if (ip) {
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	1070 int32_t_set::iterator i = ips.find(ip);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1071 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1072 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1073 if (check_single(priv, ip, priv.content_suffix)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1074 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1075 string_map::iterator j = nameservers.ns_host.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1076 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	1077 const char refer = (j).second;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1078 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1079 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	1080 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	1081 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1082 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1083 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	1084 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1085 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1086 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1087 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1088 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1089 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1090 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1091 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1092
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1093
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1094 ////////////////////////////////////////////////
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1095 //
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1096 // 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	1097 // enclosed in <>. I think older versions of sendmail supplied the <>
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1098 // 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	1099 // 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	1100 // 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	1101 // 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	1102 // 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	1103 //
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1104 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	1105 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	1106 if (!email) return strdup("<>");
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1107 size_t n = strlen(email);
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1108 if ((n > 1) && (email[0] == '<') && (email[n-1] == '>')) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1109 n -= 2;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1110 email++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1111 }
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1112 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	1113 n -= 2;
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1114 email++;
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1115 }
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1116 if (n ==0) return strdup("<>");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1117 char *key = strdup(email);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1118 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	1119 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	1120
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1121 if (srs) {
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1122 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	1123 // 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	1124 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	1125 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	1126 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	1127 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	1128 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	1129 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	1130 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	1131 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	1132 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	1133 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	1134 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	1135 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	1136 strcat(newkey, "@"); // @
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1137 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	1138 free(key);
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1139 key = newkey;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1140 }
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1141 }
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1142 }
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1143 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	1144 // 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	1145 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	1146 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	1147 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	1148 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	1149 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	1150 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	1151 free(key);
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1152 key = newkey;
66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1153 }
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1154 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1155 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1156 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1157 return key;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1158 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1159
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1160
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1161 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1162 // start of sendmail milter interfaces
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1163 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1164 sfsistat mlfi_connect(SMFICTX ctx, char hostname, _SOCK_ADDR *hostaddr)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1165 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1166 // allocate some private memory
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1167 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	1168 if (hostaddr && (hostaddr->sa_family == AF_INET)) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1169 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	1170 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1171 // save the private data
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1172 smfi_setpriv(ctx, (void*)priv);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1173
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1174 // continue processing
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1175 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1176 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1177
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1178 sfsistat mlfi_helo(SMFICTX * ctx, char *helohost)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1179 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1180 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1181 priv.helo = strdup(helohost);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1182 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1183 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1184
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1185 sfsistat mlfi_envfrom(SMFICTX ctx, char *from)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1186 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1187 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	1188 CONFIG &dc = *priv.pc;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1189 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	1190 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	1191 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	1192 priv.client_name = smfi_getsymval(ctx, (char*)"_");
191 2a67d31099c3 fix null pointer dereference from missing HELO command carl parents: 190 diff changeset	1193 if (!priv.helo) priv.helo = strdup("unknown");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1194 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	1195 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	1196 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	1197 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	1198 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	1199 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	1200 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	1201 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	1202 //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	1203 //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	1204 //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	1205 }
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1206 p = strstr(priv.client_name, "] (may be forged)");
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1207 if (p) {
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1208 priv.client_dns_forged = true;
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1209 if (priv.client_dns_name) {
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1210 char text[500];
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1211 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	1212 my_syslog(text);
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1213 }
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1214 }
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	1215 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1216 if (spamc != spamc_empty) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1217 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	1218 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1219 if (dccifd_port) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1220 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	1221 }
290 bb69fdc3acaa Unique ip connection limits only apply to authenticated connections Carl Byington <carl@five-ten-sg.com> parents: 286 diff changeset	1222 if (priv.authenticated) {
284 896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1223 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	1224 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	1225 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	1226 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	1227 if (debug_syslog > 1) {
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1228 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	1229 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	1230 my_syslog(&priv, msg);
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1231 }
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1232 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	1233 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	1234 return SMFIS_REJECT;
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1235 }
896b9393d3f0 Fix segfault caused by freeing unallocated memory Carl Byington <carl@five-ten-sg.com> parents: 282 diff changeset	1236 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1237 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1238 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1239
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1240 sfsistat mlfi_envrcpt(SMFICTX ctx, char *rcpt)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1241 {
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1242 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	1243 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	1244 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	1245 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	1246 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	1247 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	1248 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	1249 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	1250 bool from_root = (strncasecmp(priv.mailaddr, "root@", 5) == 0);
174 da0c41b9f672 don't whitelist addresses with embedded spaces carl parents: 173 diff changeset	1251
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1252 // 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	1253 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	1254 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	1255 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	1256 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1257 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1258 // 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	1259 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	1260 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	1261 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	1262 // tell spam assassin and dccifd about this recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1263 if (priv.assassin) priv.assassin->mlfi_envrcpt(ctx, loto);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1264 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	1265 // loto sending a reply back to priv.mailaddr
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1266 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	1267 const char *replyvalue = con2.find_from(loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1268 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1269 char buf[maxlen];
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1270 char buf2[maxlen];
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1271 char msg[maxlen];
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1272 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	1273 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1274 }
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1275 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	1276 status st = oksofar;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1277 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	1278 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	1279 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1280 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1281 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	1282 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	1283 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	1284 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	1285 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	1286 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1287 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	1288 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	1289 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1290 }
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	1291 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	1292 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	1293 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1294 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1295 st = white;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1296 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1297 else if (fromvalue == token_black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1298 st = black;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1299 }
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	1300 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	1301 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	1302 }
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	1303 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	1304 // whitelisting based on envelope from value, but ignore it if
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	1305 // we have a dkim requirement for that domain
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	1306 const char *domain = strchr(priv.mailaddr, '@');
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	1307 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	1308 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	1309 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	1310 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	1311 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	1312 }
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	1313 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	1314 }
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	1315 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	1316 }
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	1317
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	1318 if (st == oksofar) {
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1319 // check the dns based lists, whitelist first
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1320 DNSWLP acceptlist = NULL; // list that caused the whitelisting
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1321 if (check_dnswl(priv, con.get_dnswl_list(), acceptlist)) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1322 st = white;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1323 if (debug_syslog > 1) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1324 char msg[maxlen];
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1325 snprintf(msg, sizeof(msg), "whitelisted by %s", acceptlist->name);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1326 my_syslog(&priv, msg);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1327 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1328 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1329 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	1330 // 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	1331 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	1332 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	1333 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	1334 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	1335 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	1336 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	1337 return SMFIS_REJECT;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1338 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1339 }
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	1340
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1341 if (st == oksofar) {
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1342 // check forged rdns
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1343 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	1344 // reject the recipient based on forged reverse dns
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1345 char buf[maxlen];
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1346 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	1347 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	1348 return SMFIS_REJECT;
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1349 }
f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1350 // 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	1351 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	1352 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	1353 if (msg) {
13905d36ca82 Generic regex now matches against the reverse dns PTR value Carl Byington <carl@five-ten-sg.com> parents: 296 diff changeset	1354 // 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	1355 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	1356 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	1357 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	1358 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	1359 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1360 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1361 }
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	1362
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1363 if (st == black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1364 // 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	1365 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	1366 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1367 }
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	1368
203 92a5c866bdfa Verify from/to pairs even if they might be explicitly whitelisted. Carl Byington <carl@five-ten-sg.com> parents: 194 diff changeset	1369 if (ver) {
92a5c866bdfa Verify from/to pairs even if they might be explicitly whitelisted. Carl Byington <carl@five-ten-sg.com> parents: 194 diff changeset	1370 // try to verify this 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	1371 const char *loto = to_lower_string(rcptaddr, false);
348 8fe6d5120771 need to actually use the modified recipient in the verifier Carl Byington <carl@five-ten-sg.com> parents: 346 diff changeset	1372 bool rc = ver->ok(priv.queueid, priv.mailaddr, loto);
346 66969443a012 need to strip <> from recipient address before sending to verifier Carl Byington <carl@five-ten-sg.com> parents: 344 diff changeset	1373 free((void*)loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1374 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	1375 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	1376 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1377 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1378 }
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	1379
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	1380 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	1381 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	1382 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	1383 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	1384 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	1385 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	1386 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	1387 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	1388 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	1389 }
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	1390 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	1391 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	1392 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	1393 }
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	1394 }
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	1395
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1396 // 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	1397 // if needed to ensure we can accept replies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1398 loto = to_lower_string(rcptaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1399 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	1400
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1401 // check if local part is too big
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1402 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	1403 const char *p = strchr(loto, '@');
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1404 int len = (p) ? p-loto : max_local_size;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1405 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	1406
9f0d9fcb58dd Never add auto-whitelist entries for outgoing mail from localhost Carl Byington <carl@five-ten-sg.com> parents: 290 diff changeset	1407 // 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	1408 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	1409
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1410 // record it if we have a whitelister
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1411 if (w) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1412 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	1413 priv.delayer.push_back(dwp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1414 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1415 else {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1416 free((void*)loto); // or we free it here
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1417 }
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1418
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1419 // accept the recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1420 if (!con.get_content_filtering()) st = white;
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1421
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1422 if (st == oksofar) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1423 // remember first content filtering context
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1424 if (con.get_content_filtering()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1425 if (!priv.content_context) priv.content_context = &con;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1426 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	1427 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	1428 return SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1429 }
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	1430 priv.need_content_filter(rcptaddr, con);
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	1431 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	1432 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	1433 // 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	1434 if (priv.helo_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1435 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	1436 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	1437 }
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1438 // 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	1439 if (priv.client_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1440 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	1441 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	1442 }
268 f941563c2a95 Add require_rdns checking Carl Byington <carl@five-ten-sg.com> parents: 266 diff changeset	1443 // 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	1444 if (priv.from_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1445 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	1446 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	1447 }
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	1448 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	1449 char buf[maxlen];
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1450 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	1451 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	1452 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	1453 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1454 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1455 // 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	1456 register_string(priv.env_to, rcptaddr, &con);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1457 priv.only_whites = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1458 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	1459 (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	1460 priv.want_dccgrey \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1461 (con.get_grey()); // want to use it for greylisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1462 priv.want_dccbulk \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1463 (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	1464 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1465 if (st == white) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1466 priv.have_whites = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1467 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1468 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1469 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1470
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1471 sfsistat mlfi_header(SMFICTX* ctx, char* headerf, char* headerv)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1472 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1473 mlfiPriv &priv = *MLFIPRIV;
321 e172dc10fe24 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 311 diff changeset	1474 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	1475 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	1476 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	1477 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	1478 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	1479 }
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	1480 }
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	1481
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1482 if (priv.dkim_ok) {
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1483 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	1484 if (priv.header_count == 2) {
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1485 if (strcasecmp(headerf, "Authentication-Results") != 0) priv.dkim_ok = false;
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1486 if (strncasecmp(headerv, token_myhostname, strlen(token_myhostname)) != 0) priv.dkim_ok = false;
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1487 if (priv.dkim_ok) {
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1488 const int nmatch = 2;
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1489 regmatch_t match[nmatch];
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1490 while (true) {
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	1491 if (0 == regexec(&dkim_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	1492 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	1493 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	1494 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	1495 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	1496 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	1497 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	1498 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	1499 value += e1 + 1;
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1500 }
327 51846836ec92 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 326 diff changeset	1501 else break;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1502 }
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1503 else break;
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1504 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1505 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1506 }
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1507 }
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1508
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	1509 // only look at the first from header
335 354b15b8b263 header from may appear very early in unsigned messages Carl Byington <carl@five-ten-sg.com> parents: 334 diff changeset	1510 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	1511 const int nmatch = 2;
b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1512 regmatch_t match[nmatch];
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	1513 int err = regexec(&from_pattern, value, nmatch, match, 0);
333 89574f8a2f64 log regexec error extracting domain from header Carl Byington <carl@five-ten-sg.com> parents: 331 diff changeset	1514 if (err == 0) {
328 b4f766947202 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 327 diff changeset	1515 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	1516 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	1517 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	1518 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	1519 priv.fromaddr = strdup(value+s1);
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1520 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1521 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1522 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1523
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1524 // 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	1525 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	1526 ((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	1527 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	1528 }
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1529
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1530 // other headers are only needed for content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1531 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1532 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1533 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	1534 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	1535 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1536 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1537
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1538 sfsistat mlfi_eoh(SMFICTX* ctx)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1539 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1540 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1541 // delayed autowhitelisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1542 while (!priv.delayer.empty()) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1543 DELAYWHITEP dwp = priv.delayer.front();
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1544 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	1545 if (priv.allow_autowhitelisting) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1546 WHITELISTERP w = dwp->get_w();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1547 CONTEXTP con2 = dwp->get_con();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1548 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1549 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1550 char msg[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1551 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	1552 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1553 }
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1554 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	1555 }
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1556 else {
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1557 if (debug_syslog > 1) {
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1558 char msg[maxlen];
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1559 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	1560 my_syslog(&priv, msg);
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1561 }
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1562 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	1563 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1564 delete dwp;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1565 priv.delayer.pop_front();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1566 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1567 // content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1568 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1569 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1570 if (priv.want_spamassassin) priv.assassin->mlfi_eoh();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1571 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	1572 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1573 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1574
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1575 sfsistat mlfi_body(SMFICTX ctx, u_char data, size_t len)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1576 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1577 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1578 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1579 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1580 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	1581 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	1582 priv.scanner->scan(data, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1583 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1584 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1585
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1586 sfsistat mlfi_eom(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1587 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1588 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	1589 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	1590 const char *host = NULL;
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	1591 int32_t ip;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1592 // process end of message
190 004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	1593 priv.eom = true;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1594 if (priv.authenticated \|\| priv.only_whites) rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1595 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1596 // assert env_to not empty, it contains the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1597 // non-whitelisted folks that want content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1598 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	1599 bool grey = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1600 int bulk = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1601 if (priv.want_dccgrey \|\| priv.want_dccbulk) priv.dccifd->mlfi_eom(grey, bulk);
178 d6531c702be3 embedded dcc filtering carl parents: 177 diff changeset	1602
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1603 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1604 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	1605 string_set unknowns;
9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1606 string_set whites;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1607 bool random = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1608 int limit = 0;
326 5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1609 if (priv.dkim_signers.empty()) {
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1610 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	1611 (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	1612 my_syslog(&priv, buf);
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1613 }
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1614 else {
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1615 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	1616 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	1617 (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	1618 my_syslog(&priv, buf);
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1619 }
5e4b5540c8cc allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 325 diff changeset	1620 }
323 a6de27b0a1e9 add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 322 diff changeset	1621
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1622 for (context_map::iterator i=priv.env_to.begin(); i!=priv.env_to.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	1623 const char rcpt = (i).first;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1624 CONTEXT &con = ((i).second);
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1625 const char st = con.acceptable_content(priv.memory, score, bulk, priv.queueid, priv.dkim_signers, priv.fromaddr, msg);
9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1626 if (st == token_black) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1627 // bad html tags or excessive hosts or
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1628 // 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	1629 // 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	1630 // 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	1631 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1632 }
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1633 else if (st == token_unknown) {
9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1634 unknowns.insert(rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1635 random \|= con.get_host_random();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1636 limit = max(limit, con.get_host_limit());
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1637 }
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1638 else if (st == token_white) {
9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1639 whites.insert(rcpt);
9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1640 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1641 }
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1642 bool rejecting = unknowns.empty() && whites.empty();
9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1643 if (!unknowns.empty()) {
9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1644 // 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	1645 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	1646 const char *found;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1647 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	1648 if (found) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1649 // uribl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1650 snprintf(buf, sizeof(buf), fmt, host, found);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1651 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1652 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1653 // dnsbl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1654 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1655 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1656 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	1657 snprintf(buf, sizeof(buf), fmt, host, adr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1658 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1659 msg = string(buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1660 rejecting = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1661 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1662 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1663 if (!rejecting) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1664 if (priv.want_dccgrey && grey) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1665 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	1666 rc = SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1667 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1668 else rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1669 }
331 9800776436b9 allow dkim whitelisting to override uribl hosts in the mail body Carl Byington <carl@five-ten-sg.com> parents: 330 diff changeset	1670 else if (!priv.have_whites && whites.empty()) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1671 // can reject the entire message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1672 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	1673 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	1674 rc = SMFIS_REJECT;
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 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1677 // 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	1678 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	1679 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	1680 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1681 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1682 rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1683 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1684 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1685 // reset for a new message on the same connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1686 mlfi_abort(ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1687 return rc;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1688 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1689
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1690 sfsistat mlfi_abort(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1691 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1692 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1693 priv.reset();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1694 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1695 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1696
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1697 sfsistat mlfi_close(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1698 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1699 mlfiPriv *priv = MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1700 if (!priv) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1701 delete priv;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1702 smfi_setpriv(ctx, NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1703 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1704 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1705
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1706 struct smfiDesc smfilter =
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1707 {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1708 (char*)"DNSBL", // filter name
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1709 SMFI_VERSION, // version code -- do not change
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1710 SMFIF_DELRCPT, // flags
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1711 mlfi_connect, // connection info filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1712 mlfi_helo, // SMTP HELO command filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1713 mlfi_envfrom, // envelope sender filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1714 mlfi_envrcpt, // envelope recipient filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1715 mlfi_header, // header filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1716 mlfi_eoh, // end of header
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1717 mlfi_body, // body block filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1718 mlfi_eom, // end of message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1719 mlfi_abort, // message aborted
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1720 mlfi_close, // connection cleanup
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1721 };
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1722
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1723
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1724 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1725 // reload the config
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1726 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1727 CONFIG* new_conf();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1728 CONFIG* new_conf() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1729 CONFIG *newc = new CONFIG;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1730 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1731 newc->generation = generation++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1732 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1733 if (debug_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1734 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1735 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	1736 my_syslog(buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1737 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1738 if (load_conf(*newc, "dnsbl.conf")) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1739 newc->load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1740 return newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1741 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1742 delete newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1743 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1744 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1745
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1746
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1747 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1748 // thread to watch the old config files for changes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1749 // and reload when needed.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1750 // we also clear the SMTP AUTH recipient counts hourly
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1751 //
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1752 extern "C" {void* config_loader(void *arg);}
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1753 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	1754 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	1755 int loop2 = 0;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1756 while (loader_run) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1757 sleep(180); // look for modifications every 3 minutes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1758 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	1759 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	1760 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	1761 if (loop1 == 20) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1762 // 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	1763 // 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	1764 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	1765 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	1766 (*i).second = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1767 }
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1768 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	1769 delete (*j).second;
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	1770 (*j).second = new int32_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	1771 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1772 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	1773 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	1774 }
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	1775 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	1776 // 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	1777 // 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	1778 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	1779 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	1780 (*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	1781 }
278 368572c57013 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 272 diff changeset	1782 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	1783 delete (*j).second;
280 2b77295fb9a7 add limits on unique ip addresses per hour per authenticated user Carl Byington <carl@five-ten-sg.com> parents: 278 diff changeset	1784 (*j).second = new int32_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	1785 }
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	1786 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	1787 loop2 = 0;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1788 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1789 CONFIG &dc = *config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1790 time_t then = dc.load_time;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1791 struct stat st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1792 bool reload = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1793 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	1794 const char fn = i;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1795 if (stat(fn, &st)) reload = true; // file disappeared
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1796 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	1797 if (reload) break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1798 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1799 if (reload) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1800 CONFIG *newc = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1801 if (newc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1802 // replace the global config pointer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1803 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1804 CONFIG *pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1805 bool last = pc && (!pc->reference_count);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1806 config = newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1807 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1808 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	1809 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1810 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1811 // failed to load new config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1812 my_syslog("failed to load new configuration");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1813 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	1814 // 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	1815 dc.load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1816 }
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 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1819 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1820 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1821
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1822
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1823 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	1824 void usage(const char *prog)
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1825 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1826 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	1827 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	1828 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	1829 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	1830 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	1831 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	1832 fprintf(stderr, " and should be one of\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1833 fprintf(stderr, " inet:port@ip-address\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1834 fprintf(stderr, " local:local-domain-socket-file-name\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1835 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	1836 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	1837 fprintf(stderr, " in an infinte loop.\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1838 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	1839 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	1840 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	1841 fprintf(stderr, " addresses in the argument to the -e switch\n");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1842 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1843
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1844
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1845
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1846 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	1847 void setup_socket(const char *sock) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1848 unlink(sock);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1849 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1850
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1851
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1852 /*
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1853 * The signal handler function -- only gets called when a SIGCHLD
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1854 * is received, ie when a child terminates
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1855 */
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1856 void sig_chld(int signo)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1857 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1858 int status;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1859 /* Wait for any child without blocking */
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1860 while (waitpid(-1, &status, WNOHANG) > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1861 // 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	1862 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1863 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1864
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1865
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1866 int main(int argc, char**argv)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1867 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1868 token_init();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1869 bool check = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1870 bool stress = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1871 bool setconn = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1872 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	1873 char *email = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1874 int c;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1875 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	1876 extern char *optarg;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1877
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1878 // 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	1879 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	1880 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	1881 exit(3);
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1882 }
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1883
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1884 // setup prvs coding detection
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1885 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	1886 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	1887 exit(3);
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1888 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1889
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1890 // setup dkim signature detection
327 51846836ec92 allow multiple dkim signers in authentication results Carl Byington <carl@five-ten-sg.com> parents: 326 diff changeset	1891 if (regcomp(&dkim_pattern, " dkim=pass .[0-9]*-bit key. header.d=([^ ]+) ", REG_ICASE \| REG_EXTENDED)) {
322 9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1892 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	1893 exit(3);
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1894 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1895
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1896 // setup from domain extraction
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1897 if (regcomp(&from_pattern, "@([a-zA-Z0-9.-]+)", REG_ICASE \| REG_EXTENDED)) {
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1898 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	1899 exit(3);
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1900 }
9f8411f3919c add dkim white/black listing Carl Byington <carl@five-ten-sg.com> parents: 321 diff changeset	1901
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1902 // Process command line options
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1903 while ((c = getopt(argc, argv, args)) != -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1904 switch (c) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1905 case 'b':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1906 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1907 fprintf(stderr, "Illegal dccifd socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1908 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1909 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1910 dccifd_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1911 break;
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	1912
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1913 case 'r':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1914 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1915 fprintf(stderr, "Illegal resolver socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1916 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1917 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1918 resolver_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1919 setup_socket(resolver_port);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1920 setreso = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1921 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1922
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1923 case 'p':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1924 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1925 fprintf(stderr, "Illegal sendmail socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1926 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1927 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1928 if (smfi_setconn(optarg) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1929 fprintf(stderr, "smfi_setconn failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1930 exit(EX_SOFTWARE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1931 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1932 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	1933 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	1934 setconn = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1935 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1936
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1937 case 't':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1938 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1939 fprintf(stderr, "Illegal timeout: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1940 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1941 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1942 if (smfi_settimeout(atoi(optarg)) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1943 fprintf(stderr, "smfi_settimeout failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1944 exit(EX_SOFTWARE);
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 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1947
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1948 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	1949 if (email) free((void*)email);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1950 email = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1951 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1952
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1953 case 'c':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1954 check = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1955 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1956
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1957 case 's':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1958 stress = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1959 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1960
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1961 case 'd':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1962 if (optarg == NULL \|\| *optarg == '\0') debug_syslog = 1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1963 else debug_syslog = atoi(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1964 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1965
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1966 case 'h':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1967 default:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1968 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1969 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1970 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1971 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1972
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1973 if (check) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1974 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1975 debug_syslog = 10;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1976 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1977 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1978 conf->dump();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1979 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1980 clear_strings(); // for valgrind checking
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1981 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1982 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1983 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1984 return 1; // config failed to load
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1985 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1986 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1987
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1988 if (stress) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1989 fprintf(stdout, "stress testing\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1990 while (1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1991 for (int i=0; i<10; i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1992 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1993 if (conf) delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1994 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1995 fprintf(stdout, ".");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1996 fflush(stdout);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1997 sleep(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1998 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1999 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2000
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2001 if (email) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2002 char *x = strchr(email, '\|');
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2003 if (x) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2004 *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	2005 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	2006 const char *to = to_lower_string(x+1);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2007 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2008 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2009 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2010 CONTEXTP con = conf->find_context(to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2011 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2012 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	2013 CONTEXTP fc = con->find_context(from);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2014 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	2015 const char *st = fc->find_from(from);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2016 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	2017 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	2018 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	2019 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2020 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2021 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2022 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2023 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2024
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2025 if (!setconn) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2026 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	2027 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2028 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2029 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2030
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2031 if (!setreso) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2032 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	2033 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2034 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2035 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2036
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2037 if (smfi_register(smfilter) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2038 fprintf(stderr, "smfi_register failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2039 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2040 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2041
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2042 // switch to background mode
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2043 if (daemon(1,0) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2044 fprintf(stderr, "daemon() call failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2045 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2046 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2047
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2048 // write the pid
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2049 const char *pidpath = "/var/run/dnsbl.pid";
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2050 unlink(pidpath);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2051 FILE *f = fopen(pidpath, "w");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2052 if (f) {
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2053 #ifdef linux
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2054 // from a comment in the DCC source code:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2055 // Linux threads are broken. Signals given the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2056 // original process are delivered to only the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2057 // thread that happens to have that PID. The
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2058 // sendmail libmilter thread that needs to hear
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2059 // SIGINT and other signals does not, and that breaks
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2060 // scripts that need to stop milters.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2061 // However, signaling the process group works.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2062 fprintf(f, "-%d\n", (u_int)getpgrp());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2063 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2064 fprintf(f, "%d\n", (u_int)getpid());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2065 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2066 fclose(f);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2067 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2068
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2069 // initialize the thread sync objects
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2070 pthread_mutex_init(&config_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2071 pthread_mutex_init(&syslog_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2072 pthread_mutex_init(&resolve_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2073 pthread_mutex_init(&fd_pool_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2074 pthread_mutex_init(&verifier_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2075 pthread_mutex_init(&whitelister_mutex, 0);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2076
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2077 // drop root privs
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2078 struct passwd *pw = getpwnam("dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2079 if (pw) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2080 if (setgid(pw->pw_gid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2081 my_syslog("failed to switch to group dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2082 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2083 if (setuid(pw->pw_uid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2084 my_syslog("failed to switch to user dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2085 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2086 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2087
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2088 // load the initial config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2089 config = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2090 if (!config) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2091 my_syslog("failed to load initial configuration, quitting");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2092 exit(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2093 }
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 // fork off the resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2096 pid_t child = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2097 if (child < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2098 my_syslog("failed to create resolver listener process");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2099 exit(0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2100 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2101 if (child == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2102 // we are the child - dns resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2103 resolver_socket = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2104 if (resolver_socket < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2105 my_syslog("child failed to create resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2106 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2107 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2108 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2109 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2110 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2111 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	2112 //try to bind the address to the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2113 if (bind(resolver_socket, (sockaddr *)&server, sizeof(server)) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2114 // bind failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2115 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2116 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2117 my_syslog("child failed to bind resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2118 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2119 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2120 //listen on the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2121 if (listen(resolver_socket, 10) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2122 // listen failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2123 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2124 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2125 my_syslog("child failed to listen to resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2126 exit(0); // failed
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 // setup sigchld handler to prevent zombies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2129 struct sigaction act;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2130 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	2131 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	2132 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	2133 if (sigaction(SIGCHLD, &act, NULL) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2134 my_syslog("child failed to setup SIGCHLD handler");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2135 exit(0); // failed
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 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2138 sockaddr_un client;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2139 socklen_t clientlen = sizeof(client);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2140 int s = accept(resolver_socket, (sockaddr *)&client, &clientlen);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2141 if (s > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2142 // 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	2143 // fork off a process to handle this connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2144 int newchild = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2145 if (newchild == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2146 // this is the worker process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2147 // child does not need the listening socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2148 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	2149 #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	2150 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	2151 _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	2152 _res.retrans = RES_TIMEOUT;
495cfe5caead try to allow mixed -lresolv and libresolv.a for ns_parserr Carl Byington <carl@five-ten-sg.com> parents: 216 diff changeset	2153 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2154 process_resolver_requests(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2155 exit(0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2156 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2157 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2158 // this is the parent
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2159 // parent does not need the accepted socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2160 close(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2161 }
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 exit(0); // make sure we don't fall thru.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2165 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2166 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2167 sleep(2); // allow child to get started
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2168 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2169
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2170 // only create threads after the fork() in daemon
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2171 pthread_t tid;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2172 if (pthread_create(&tid, 0, config_loader, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2173 my_syslog("failed to create config loader thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2174 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2175 my_syslog("failed to detach config loader thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	2176
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2177 if (pthread_create(&tid, 0, verify_closer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2178 my_syslog("failed to create verify closer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2179 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2180 my_syslog("failed to detach verify closer thread");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2181
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2182 if (pthread_create(&tid, 0, whitelister_writer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2183 my_syslog("failed to create autowhite writer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2184 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2185 my_syslog("failed to detach autowhite writer thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	2186
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2187 time_t starting = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2188 int rc = smfi_main();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2189 if ((rc != MI_SUCCESS) && (time(NULL) > starting+5*60)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2190 my_syslog("trying to restart after smfi_main()");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2191 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	2192 execvp(argv[0], argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2193 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	2194 exit((rc == MI_SUCCESS) ? 0 : EX_UNAVAILABLE);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	2195 }

Mercurial > dnsbl

annotate src/dnsbl.cpp @ 349:3c39051699bd