dnsbl: src/dnsbl.cpp annotate

annotate src/dnsbl.cpp @ 252:836b7f2357f9

need ntohl() before using masks that are defined in host byte order

author	Carl Byington <carl@five-ten-sg.com>
date	Sun, 08 Apr 2012 16:10:31 -0700
parents	15bf4f68a0b2
children	d6d5c50b9278

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
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	3 Copyright (c) 2009 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
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	101
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	102 pthread_mutex_t config_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	103 pthread_mutex_t syslog_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	104 pthread_mutex_t resolve_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	105 pthread_mutex_t fd_pool_mutex;
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	106 pthread_mutex_t rate_mutex;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	107
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	108 std::set<int> fd_pool;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	109 int NULL_SOCKET = -1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	110 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	111 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	112 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	113 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	114 time_t last_error_time = 0;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	115 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	116 int resolver_pool_size = 0; // protected with fd_pool_mutex
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	117 rcpt_rates rcpt_counts; // protected with rate_mutex
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	118
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	119
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	120 struct ns_map {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	121 // 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	122 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	123 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	124 ~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	125 void add(const char name, const char refer);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	126 };
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	127
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	128
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	129 ns_map::~ns_map() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	130 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	131 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	132 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	133 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	134 free((void*)y);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	135 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	136 ns_ip.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	137 ns_host.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	138 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	139
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	140
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	141 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	142 string_map::iterator i = ns_host.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	143 if (i != ns_host.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	144 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	145 char *y = strdup(refer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	146 ns_ip[x] = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	147 ns_host[x] = y;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	148
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	149 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	150
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	151 // packed structure to allow a single socket write to dump the
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	152 // length and the following answer. The packing attribute is gcc specific.
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	153 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	154 size_t length;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	155 #ifdef NS_PACKETSZ
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	156 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	157 #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	158 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	159 #endif
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	160 } __attribute__ ((packed));
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	161
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	162
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	163 ////////////////////////////////////////////////
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	164 // helper to manipulate recipient counts
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	165 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	166 int incr_rcpt_count(const char *user);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	167 int incr_rcpt_count(const char *user) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	168 pthread_mutex_lock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	169 rcpt_rates::iterator i = rcpt_counts.find(user);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	170 int c = 1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	171 if (i == rcpt_counts.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	172 user = strdup(user);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	173 rcpt_counts[user] = c;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	174 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	175 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	176 c = ++((*i).second);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	177 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	178 pthread_mutex_unlock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	179 return c;
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	180 }
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	181
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	182 ////////////////////////////////////////////////
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	183 // helper to discard the strings held by a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	184 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	185 void discard(context_map &cm);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	186 void discard(context_map &cm) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	187 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	188 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	189 free((void*)x);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	190 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	191 cm.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	192 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	193
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	194
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	195 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	196 // helper to register a string in a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	197 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	198 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	199 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	200 context_map::iterator i = cm.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	201 if (i != cm.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	202 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	203 cm[x] = con;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	204 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	205
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	206
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	207 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	208 // disconnect the fd from the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	209 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	210 void my_disconnect(int sock, bool decrement = true);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	211 void my_disconnect(int sock, bool decrement) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	212 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	213 if (decrement) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	214 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	215 resolver_sock_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	216 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	217 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	218 shutdown(sock, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	219 close(sock);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	220 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	221 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	222
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	223
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	224 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	225 // return fd connected to the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	226 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	227 int my_connect();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	228 int my_connect() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	229 // 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	230 if ((time(NULL) - last_error_time) < ERROR_SOCKET_TIME) return NULL_SOCKET;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	231
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	232 // nothing recent, maybe this time it will work
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	233 int sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	234 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	235 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	236 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	237 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	238 sock = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	239 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	240 bool rc = (connect(sock, (sockaddr *)&server, sizeof(server)) == 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	241 if (!rc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	242 my_disconnect(sock, false);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	243 sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	244 last_error_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	245 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	246 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	247 else last_error_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	248 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	249 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	250 resolver_sock_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	251 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	252 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	253 return sock;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	254 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	255
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	256
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	257 ////////////////////////////////////////////////
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	258 // 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	259 // 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	260 // 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	261 //
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	262 //
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	263 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	264 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	265 // 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	266 #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	267 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	268 #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	269
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	270 // 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	271 // 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	272 // 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	273 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	274 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	275 // 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	276 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	277 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	278 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	279 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	280 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	281 int n = strlen(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	282 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	283 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	284 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	285 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	286 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	287 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	288 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	289 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	290 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	291 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	292 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	293 #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	294 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	295 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	296 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	297 #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	298 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	299 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	300 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	301 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	302 }
c0d2e99c0a1d Add surbl checks on 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 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	304
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	305 #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	306 // 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	307 // 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	308 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	309 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	310 // 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	311 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	312 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	313 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	314 // 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	315 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	316 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	317 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	318 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	319 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	320 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	321 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	322 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	323 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	324 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	325 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	326 // 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	327 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	328 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	329 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	330 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	331 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	332 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	333 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	334 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	335 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	336 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	337 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	338 *(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	339 }
c0d2e99c0a1d Add surbl checks on 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 }
c0d2e99c0a1d Add surbl checks on 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 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	342 *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	343 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	344 }
c0d2e99c0a1d Add surbl checks on 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 }
c0d2e99c0a1d Add surbl checks on 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 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	347 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	348 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	349 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	350 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	351 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	352 // 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	353 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	354 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	355 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	356 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	357 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	358 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	359 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	360 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	361 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	362 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	363 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	364 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	365 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	366 }
c0d2e99c0a1d Add surbl checks on 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 }
c0d2e99c0a1d Add surbl checks on 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 }
c0d2e99c0a1d Add surbl checks on 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 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	370 #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	371 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	372 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	373 #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	374 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	375 #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	376 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	377 #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	378 }
c0d2e99c0a1d Add surbl checks on 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
c0d2e99c0a1d Add surbl checks on 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
c0d2e99c0a1d Add surbl checks on 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 ////////////////////////////////////////////////
c0d2e99c0a1d Add surbl checks on 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 // lookup the domain name part of a hostname on the uribl
c0d2e99c0a1d Add surbl checks on 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 //
c0d2e99c0a1d Add surbl checks on 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 // if we find part of the hostname on the uribl, return
c0d2e99c0a1d Add surbl checks on 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 // true and point found to the part of the hostname that we 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	386 // 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	387 // 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	388 //
c0d2e99c0a1d Add surbl checks on 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 bool uriblookup(mlfiPriv &priv, string_set &hosts, const char hostname, const char top, 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	390 bool uriblookup(mlfiPriv &priv, string_set &hosts, const char hostname, const char top, 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	391 // top is pointer to '.' char at end of base domain, or null for ip address form
c0d2e99c0a1d Add surbl checks on 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 // so for hostname of www.fred.mydomain.co.uk
c0d2e99c0a1d Add surbl checks on 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 // top points to-----------------------^
c0d2e99c0a1d Add surbl checks on 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 // and we end up looking at only mydomain.co.uk, ignoring the www.fred stuff
c0d2e99c0a1d Add surbl checks on 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 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	396 if (top) {
c0d2e99c0a1d Add surbl checks on 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 // add one more component
c0d2e99c0a1d Add surbl checks on 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 const char x = (const char )memrchr(hostname, '.', top-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	399 if (x) hostname = x+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	400 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	401 snprintf(buf, sizeof(buf), "%s.%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	402 if (dns_interface(priv, buf, false, NULL)) {
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	403 if (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	404 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	405 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	406 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	407 }
c0d2e99c0a1d Add surbl checks on 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 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	409 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	410 }
c0d2e99c0a1d Add surbl checks on 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 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	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 ////////////////////////////////////////////////
c0d2e99c0a1d Add surbl checks on 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 // 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	417 // -------------
c0d2e99c0a1d Add surbl checks on 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 // hostname MUST not have a trailing dot
c0d2e99c0a1d Add surbl checks on 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 // If tld, two level lookup.
c0d2e99c0a1d Add surbl checks on 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 // Else, look up three level domain.
c0d2e99c0a1d Add surbl checks on 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 //
c0d2e99c0a1d Add surbl checks on 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 // if we find part of the hostname on the uribl, return
c0d2e99c0a1d Add surbl checks on 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 // true and point found to the part of the hostname that we 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	424 // 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	425 // 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	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 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	428 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	429 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	430 if (inet_aton(hostname, &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	431 const u_char src = (const u_char )&ip.s_addr;
c0d2e99c0a1d Add surbl checks on 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 if (src[0] == 127) return false; // don't do dns lookups on localhost
c0d2e99c0a1d Add surbl checks on 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 if (src[0] == 10) return false; // don't do dns lookups on rfc1918 space
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	434 if ((src[0] == 192) && (src[1] == 168)) 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	435 if ((src[0] == 172) && (16 <= src[1]) && (src[1] <= 31)) 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	436 char adr[sizeof "255.255.255.255 "];
c0d2e99c0a1d Add surbl checks on 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(adr, sizeof(adr), "%u.%u.%u.%u", src[3], src[2], src[1], src[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	438 // cannot use inet_ntop here since we want the octets reversed.
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	439 return (uriblookup(priv, hosts, adr, NULL, 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	440 }
c0d2e99c0a1d Add surbl checks on 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
c0d2e99c0a1d Add surbl checks on 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 const char top, top2, *top3;
c0d2e99c0a1d Add surbl checks on 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 top = strrchr(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	444 if (top) {
c0d2e99c0a1d Add surbl checks on 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 top2 = (const char *)memrchr(hostname, '.', top-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
c0d2e99c0a1d Add surbl checks on 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 if (top2) {
c0d2e99c0a1d Add surbl checks on 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 string_set::iterator i = priv.memory->get_cctlds()->find(top2+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	449 string_set::iterator x = priv.memory->get_cctlds()->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	450 // if we have a 2-level-cctld, just look at top three levels of the name
c0d2e99c0a1d Add surbl checks on 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 if (i != x) return uriblookup(priv, hosts, hostname, top2, 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	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 // if we have more than 3 levels in the name, look at the top three levels of the name
c0d2e99c0a1d Add surbl checks on 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 top3 = (const char *)memrchr(hostname, '.', top2-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	455 if (top3 && uriblookup(priv, hosts, hostname, top2, found)) 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	456
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	457 // if that was not found, fall thru to looking at the top two levels
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	458 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	459 // look at the top two levels of the name
c0d2e99c0a1d Add surbl checks on 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 return uriblookup(priv, hosts, hostname, top, 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	461 }
c0d2e99c0a1d Add surbl checks on 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 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	463 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	464
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	465
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	466 mlfiPriv::mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	467 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	468 pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	469 pc->reference_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	470 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	471 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	472 ctx = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	473 eom = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	474 ip = 0;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	475 helo = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	476 mailaddr = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	477 queueid = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	478 authenticated = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	479 client_name = NULL;
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	480 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	481 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	482 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	483 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	484 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	485 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	486 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	487 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	488 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	489 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	490 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	491 memory = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	492 scanner = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	493 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	494 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	495 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	496 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	497 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	498 assassin = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	499 dccifd = NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	500 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	501
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	502 mlfiPriv::~mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	503 return_fd();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	504 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	505 pc->reference_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	506 bool last = (!pc->reference_count) && (pc != config);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	507 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	508 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	509 if (helo) free((void*)helo);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	510 reset(true);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	511 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	512
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	513 void mlfiPriv::reset(bool final) {
194 688ec12a3c0c delay autowhitelisting to avoid out of office reply bots carl parents: 193 diff changeset	514 while (!delayer.empty()) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	515 DELAYWHITEP dwp = delayer.front();
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	516 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	517 if (loto) free((void*)loto);
193 3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	518 delete dwp;
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	519 delayer.pop_front();
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	520 }
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	521 if (mailaddr) free((void*)mailaddr);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	522 if (queueid) free((void*)queueid);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	523 if (authenticated) free((void*)authenticated);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	524 if (client_name) free((void*)client_name);
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	525 discard(hosts_uribl);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	526 delayer.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	527 discard(env_to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	528 if (memory) delete memory;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	529 if (scanner) delete scanner;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	530 if (assassin) delete assassin;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	531 if (dccifd) delete dccifd;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	532 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	533 ctx = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	534 eom = false;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	535 mailaddr = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	536 queueid = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	537 authenticated = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	538 client_name = NULL;
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	539 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	540 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	541 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	542 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	543 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	544 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	545 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	546 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	547 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	548 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	549 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	550 memory = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	551 scanner = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	552 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	553 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	554 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	555 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	556 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	557 assassin = NULL;
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	558 dccifd = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	559 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	560 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	561
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	562 void mlfiPriv::get_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	563 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	564 fd = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	565 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	566 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	567 std::set<int>::iterator i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	568 i = fd_pool.begin();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	569 if (i != fd_pool.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	570 // have at least one fd in the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	571 err = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	572 fd = *i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	573 fd_pool.erase(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	574 resolver_pool_size--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	575 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	576 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	577 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	578 // pool is empty, get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	579 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	580 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	581 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	582 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	583 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	584 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	585 // cannot lock the pool, just get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	586 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	587 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	588 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	589 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	590
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	591 void mlfiPriv::return_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	592 if (err) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	593 // 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	594 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	595 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	596 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	597 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	598 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	599 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	600 // return the fd to the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	601 fd_pool.insert(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	602 resolver_pool_size++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	603 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	604 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	605 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	606 // 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	607 // 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	608 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	609 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	610 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	611 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	612 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	613 // 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	614 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	615 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	616 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	617 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	618
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	619 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	620 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	621 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	622 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	623 size_t ws = write(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	624 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	625 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	626 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	627 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	628 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	629 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	630 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	631 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	632 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	633 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	634 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	635 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	636 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	637 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	638
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	639 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	640 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	641 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	642 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	643 size_t ws = read(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	644 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	645 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	646 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	647 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	648 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	649 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	650 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	651 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	652 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	653 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	654 }
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 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	657 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	658
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	659 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	660 if (!memory) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	661 // first recipient that needs content filtering sets
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	662 // some of the content filtering parameters
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	663 memory = new recorder(this, con.get_html_tags(), con.get_content_tlds(), con.get_content_cctlds());
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	664 scanner = new url_scanner(memory);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	665 content_suffix = con.get_content_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	666 content_message = con.get_content_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	667 uribl_suffix = con.get_uribl_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	668 uribl_message = con.get_uribl_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	669 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	670 // 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	671 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	672 if (helo) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	673 helo_uribl = check_uribl(*this, hosts_uribl, helo, host_uribl);
7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	674 if (client_name && !helo_uribl) {
7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	675 client_uribl = check_uribl(*this, hosts_uribl, client_name, host_uribl);
7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	676 if (mailaddr && !client_uribl) {
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	677 const char *f = strchr(mailaddr, '@');
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	678 if (f) from_uribl = check_uribl(*this, hosts_uribl, f+1, host_uribl);
7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	679 }
7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	680 }
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	681 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	682 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	683 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	684 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	685
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	686
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	687 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx);
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	688 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	689 {
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	690 mlfiPriv priv = (struct mlfiPriv )smfi_getpriv(ctx);
187 f0eda59e8afd fix null pointer dereference from missing HELO command carl parents: 186 diff changeset	691 priv->ctx = ctx;
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	692 return priv;
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	693 }
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	694 #define MLFIPRIV fetch_priv_from_ctx(ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	695
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	696
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	697
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	698 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	699 // syslog a message
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	700 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	701 void my_syslog(mlfiPriv priv, const char text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	702 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	703 if (priv) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	704 snprintf(buf, sizeof(buf), "%s: %s", priv->queueid, text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	705 text = buf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	706 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	707 if (use_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	708 pthread_mutex_lock(&syslog_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	709 if (!syslog_opened) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	710 openlog("dnsbl", LOG_PID, LOG_MAIL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	711 syslog_opened = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	712 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	713 syslog(LOG_NOTICE, "%s", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	714 pthread_mutex_unlock(&syslog_mutex);
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 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	717 printf("%s \n", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	718 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	719 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	720
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	721 void my_syslog(mlfiPriv *priv, const string text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	722 if (debug_syslog > 3) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	723 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	724 strncpy(buf, text.c_str(), sizeof(buf));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	725 buf[maxlen-1] = '\0'; // ensure null termination
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	726 my_syslog(priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	727 }
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	728 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	729
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	730 void my_syslog(const char *text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	731 my_syslog(NULL, text);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	732 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	733
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	734
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	735 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	736 // 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	737 // write the result back to the socket.
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	738
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	739 void process_resolver_requests(int socket);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	740 void process_resolver_requests(int socket) {
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	741 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	742 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	743 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	744 char question[1000];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	745 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	746 glommer glom;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	747
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	748 int maxq = sizeof(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	749 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	750 // read a question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	751 int rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	752 while (rs < maxq) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	753 int ns = read(socket, question+rs, maxq-rs);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	754 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	755 rs += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	756 if (question[rs-1] == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	757 // 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	758 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	759 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	760 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	761 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	762 // peer closed the socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	763 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	764 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	765 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	766 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	767 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	768 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	769 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	770 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	771 question[rs-1] = '\0'; // ensure null termination
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	772
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	773 // find the answer
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	774 #ifdef NS_PACKETSZ
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	775 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	776 char text[1000];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	777 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	778 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	779 #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	780 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	781 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	782 else glom.length = (size_t)res_result;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	783 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	784 glom.length = sizeof(glom.answer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	785 glom.answer = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	786 struct hostent *host = gethostbyname(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	787 if (host && (host->h_addrtype == AF_INET)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	788 memcpy(&glom.answer, host->h_addr, sizeof(glom.answer));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	789 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	790 #endif
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	791
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	792 // write the answer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	793 char buf = (char )&glom;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	794 int len = glom.length + sizeof(glom.length);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	795 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	796 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	797 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	798 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	799 int ws = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	800 while (len > ws) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	801 int ns = write(socket, buf+ws, len-ws);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	802 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	803 ws += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	804 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	805 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	806 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	807 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	808 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	809 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	810 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	811 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	812 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	813 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	814 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	815 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	816 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	817
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	818
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	819 ////////////////////////////////////////////////
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	820 // check a single dns list, return ip address in network byte order
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	821 //
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	822 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	823 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	824 // make a dns question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	825 const u_char src = (const u_char )&ip;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	826 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	827 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	828 if ((src[0] == 192) && (src[1] == 168)) return 0;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	829 if ((src[0] == 172) && (16 <= src[1]) && (src[1] <= 31)) return 0;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	830 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	831 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	832 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	833 char question[1000];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	834 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	835 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	836 // 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	837 return dns_interface(priv, question, false, NULL);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	838 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	839
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	840
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	841 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	842 // check a single dnsbl
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	843 //
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	844 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	845 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	846 return check_single(priv, ip, bl.suffix);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	847 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	848
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	849
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	850 ////////////////////////////////////////////////
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	851 // check a single dnswl
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	852 //
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	853 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	854 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	855 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	856 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	857 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	858 uint32_t m2 = (uint32_t)0x000000ff;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	859 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	860 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	861 if ((int)l >= wl.level) return true;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	862 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	863 return false;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	864 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	865
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	866
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	867 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	868 // check the dnsbls specified for this recipient
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	869 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	870 bool check_dnsbl(mlfiPriv &priv, dnsblp_list &dnsbll, DNSBLP &rejectlist);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	871 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	872 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	873 DNSBLP dp = *i; // non null by construction
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	874 bool st;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	875 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	876 if (f == priv.checked_black.end()) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	877 // have not checked this list yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	878 st = check_single(priv, priv.ip, *dp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	879 rejectlist = dp;
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	880 priv.checked_black[dp] = st;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	881 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	882 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	883 st = (*f).second;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	884 rejectlist = (*f).first;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	885 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	886 if (st) return st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	887 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	888 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	889 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	890
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	891
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	892 ////////////////////////////////////////////////
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	893 // check the dnswls specified for this recipient
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	894 //
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	895 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	896 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	897 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	898 DNSWLP dp = *i; // non null by construction
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	899 bool st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	900 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	901 if (f == priv.checked_white.end()) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	902 // have not checked this list yet
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	903 st = check_single(priv, priv.ip, *dp);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	904 acceptlist = dp;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	905 priv.checked_white[dp] = st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	906 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	907 else {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	908 st = (*f).second;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	909 acceptlist = (*f).first;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	910 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	911 if (st) return st;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	912 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	913 return false;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	914 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	915
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	916
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	917 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	918 // check the hosts from the body against the content filter and uribl dnsbls
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	919 //
124 ea6f9c812faa put hostname in smtp message for uribl style lookups carl parents: 123 diff changeset	920 //
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	921 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	922 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	923 found = NULL; // normally ip address style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	924 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	925 string_set &hosts = priv.memory->get_hosts();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	926 string_set &ignore = *priv.content_host_ignore;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	927
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	928 int count = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	929 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	930 int32_t_set ips;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	931 ns_map nameservers;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	932 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	933 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	934
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	935 // 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	936 string_set::iterator j = ignore.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	937 if (j != ignore.end()) continue;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	938
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	939 // 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	940 if ((cnt > limit) && (limit > 0) && random) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	941 int r = rand() % cnt;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	942 if (r >= limit) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	943 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	944 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	945 snprintf(buf, sizeof(buf), "host %s skipped", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	946 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	947 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	948 continue;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	949 }
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 count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	952 ip = dns_interface(priv, host, true, &nameservers);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	953 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	954 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	955 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	956 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	957 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	958 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	959 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	960 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	961 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	962 snprintf(buf, sizeof(buf), "host %s not found", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	963 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	964 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	965 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	966 if (ip) {
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	967 int32_t_set::iterator i = ips.find(ip);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	968 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	969 // we haven't looked this up yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	970 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	971 // check dnsbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	972 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	973 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	974 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	975 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	976 // Check uribl & surbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	977 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	978 msg = priv.uribl_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	979 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	980 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	981 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	982 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	983 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	984 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	985 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	986 count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	987 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	988 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	989 ip = (*i).second;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	990 if (!ip) ip = dns_interface(priv, host, false, NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	991 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	992 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	993 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	994 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	995 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	996 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	997 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	998 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	999 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1000 snprintf(buf, sizeof(buf), "ns %s not found", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1001 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1002 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1003 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1004 if (ip) {
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	1005 int32_t_set::iterator i = ips.find(ip);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1006 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1007 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1008 if (check_single(priv, ip, priv.content_suffix)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1009 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1010 string_map::iterator j = nameservers.ns_host.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1011 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	1012 const char refer = (j).second;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1013 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1014 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	1015 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	1016 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1017 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1018 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	1019 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1020 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1021 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1022 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1023 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1024 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1025 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1026 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1027
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1028
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1029 ////////////////////////////////////////////////
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1030 //
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1031 // 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	1032 // enclosed in <>. I think older versions of sendmail supplied the <>
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	1033 // 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	1034 // 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	1035 // 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	1036 // 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	1037 // 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	1038 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1039 const char to_lower_string(const char email);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1040 const char to_lower_string(const char email) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1041 int n = strlen(email);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1042 if (email[0] == '<') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1043 // assume it also ends with >
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1044 n -= 2;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1045 if (n < 1) return strdup(email); // return "<>"
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1046 email++;
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 if ((email[0] == '\'') && (email[n-1] == '\'') && (n > 2)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1049 n -= 2;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1050 email++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1051 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1052 char *key = strdup(email);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1053 key[n] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1054 for (int i=0; i<n; i++) key[i] = tolower(key[i]);
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1055 if ((n > 14) && (strncmp(key, "srs", 3) == 0)) {
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1056 // might have srs coding to be removed
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1057 const int nmatch = 6;
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1058 regmatch_t match[nmatch];
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1059 if (0 == regexec(&srs_pattern, key, nmatch, match, 0)) {
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1060 int s4 = match[4].rm_so; // domain
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1061 int e4 = match[4].rm_eo;
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1062 int s5 = match[5].rm_so; // user
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1063 int e5 = match[5].rm_eo;
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1064 if ((s4 != -1) && (s5 != -1)) {
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1065 char *newkey = strdup(key); // large enough
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1066 key[e4] = '\0';
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1067 key[e5] = '\0';
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1068 strcpy(newkey, key+s5); // user
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1069 strcat(newkey, "@"); // @
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1070 strcat(newkey, key+s4); // domain
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1071 free(key);
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1072 key = newkey;
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1073 }
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1074 }
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1075 }
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1076 if ((n > 7) && (strncmp(key, "prvs", 4) == 0)) {
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1077 // might have prvs coding to be removed
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1078 const int nmatch = 3;
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1079 regmatch_t match[nmatch];
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1080 if (0 == regexec(&prvs_pattern, key, nmatch, match, 0)) {
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1081 int s2 = match[2].rm_so; // user@domain
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1082 if (s2 != -1) {
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1083 char *newkey = strdup(key+s2); // user@domain
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1084 free(key);
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1085 key = newkey;
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1086 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1087 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1088 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1089 return key;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1090 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1091
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1092
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1093 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1094 // start of sendmail milter interfaces
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1095 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1096 sfsistat mlfi_connect(SMFICTX ctx, char hostname, _SOCK_ADDR *hostaddr)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1097 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1098 // allocate some private memory
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1099 mlfiPriv *priv = new mlfiPriv;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1100 if (hostaddr->sa_family == AF_INET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1101 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	1102 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1103 // save the private data
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1104 smfi_setpriv(ctx, (void*)priv);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1105
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1106 // continue processing
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1107 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1108 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1109
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1110 sfsistat mlfi_helo(SMFICTX * ctx, char *helohost)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1111 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1112 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1113 priv.helo = strdup(helohost);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1114 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1115 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1116
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1117 sfsistat mlfi_envfrom(SMFICTX ctx, char *from)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1118 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1119 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1120 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	1121 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	1122 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	1123 priv.client_name = smfi_getsymval(ctx, (char*)"_");
191 2a67d31099c3 fix null pointer dereference from missing HELO command carl parents: 190 diff changeset	1124 if (!priv.helo) priv.helo = strdup("unknown");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1125 if (priv.authenticated) priv.authenticated = strdup(priv.authenticated);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1126 if (priv.client_name) priv.client_name = strdup(priv.client_name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1127 if (spamc != spamc_empty) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1128 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	1129 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1130 if (dccifd_port) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1131 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	1132 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1133 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1134 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1135
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1136 sfsistat mlfi_envrcpt(SMFICTX ctx, char *rcpt)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1137 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1138 DNSBLP rejectlist = NULL; // list that caused the reject
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1139 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1140 CONFIG &dc = *priv.pc;
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1141 const char *rcptaddr = rcpt[0];
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1142 const char *loto = to_lower_string(rcptaddr);
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	1143 bool self = (strcmp(loto, priv.mailaddr) == 0);
174 da0c41b9f672 don't whitelist addresses with embedded spaces carl parents: 173 diff changeset	1144
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1145 // 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	1146 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	1147 smfi_setreply(ctx, (char)"550", (char)"5.7.1", (char*)"bogus recipient");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1148 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1149 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1150 // 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	1151 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	1152 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	1153 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	1154 // tell spam assassin and dccifd about this recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1155 if (priv.assassin) priv.assassin->mlfi_envrcpt(ctx, loto);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1156 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	1157 // loto sending a reply back to priv.mailaddr
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1158 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	1159 const char *replyvalue = con2.find_from(loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1160 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1161 char buf[maxlen];
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1162 char buf2[maxlen];
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1163 char msg[maxlen];
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1164 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	1165 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1166 }
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1167 free((void*)loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1168 status st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1169 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	1170 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	1171 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1172 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1173 if (priv.authenticated) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1174 int c = incr_rcpt_count(priv.authenticated);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1175 int l = dc.default_context->find_rate(priv.authenticated);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1176 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1177 char msg[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1178 snprintf(msg, sizeof(msg), "authenticated id %s (%d recipients, %d limit)", priv.authenticated, c, l);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1179 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1180 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1181 if (c > l) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1182 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	1183 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1184 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1185 st = white;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1186 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1187 else if (fromvalue == token_black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1188 st = black;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1189 }
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	1190 else if ((fromvalue == token_white) && !self) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1191 st = white;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1192 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1193 else {
249 15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1194 // check the dns based lists, whitelist first
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1195 DNSWLP acceptlist = NULL; // list that caused the whitelisting
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1196 if (check_dnswl(priv, con.get_dnswl_list(), acceptlist)) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1197 st = white;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1198 if (debug_syslog > 1) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1199 char msg[maxlen];
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1200 snprintf(msg, sizeof(msg), "whitelisted by %s", acceptlist->name);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1201 my_syslog(&priv, msg);
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1202 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1203 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1204 else if (check_dnsbl(priv, con.get_dnsbl_list(), rejectlist)) {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1205 st = reject;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1206 }
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1207 else {
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1208 st = oksofar;
15bf4f68a0b2 Add dnswl support Carl Byington <carl@five-ten-sg.com> parents: 248 diff changeset	1209 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1210 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1211 if (st == reject) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1212 // reject the recipient based on some dnsbl
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1213 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1214 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1215 inet_ntop(AF_INET, (const u_char *)&priv.ip, adr, sizeof(adr));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1216 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1217 snprintf(buf, sizeof(buf), rejectlist->message, adr, adr);
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1218 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	1219 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1220 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1221 if (st == oksofar) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1222 const char *msg = con.generic_match(priv.client_name);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1223 if (msg) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1224 // reject the recipient based on generic reverse dns
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1225 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1226 snprintf(buf, sizeof(buf), msg, priv.client_name);
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1227 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	1228 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1229 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1230 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1231 if (st == black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1232 // 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	1233 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	1234 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1235 }
203 92a5c866bdfa Verify from/to pairs even if they might be explicitly whitelisted. Carl Byington <carl@five-ten-sg.com> parents: 194 diff changeset	1236 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	1237 // try to verify this from/to pair of addresses even if it might be explicitly whitelisted
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1238 const char *loto = to_lower_string(rcptaddr);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1239 bool rc = ver->ok(priv.mailaddr, loto);
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1240 free((void*)loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1241 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	1242 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	1243 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1244 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1245 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1246 // 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	1247 // if needed to ensure we can accept replies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1248 loto = to_lower_string(rcptaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1249 WHITELISTERP w = con2.find_autowhite(loto, priv.mailaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1250 // check if local part is too big
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1251 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	1252 const char *p = strchr(loto, '@');
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1253 int len = (p) ? p-loto : max_local_size;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1254 if (len >= max_local_size) w = NULL; // too big, pretend we don't have a whitelister
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1255 // record it if we have a whitelister
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1256 if (w) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1257 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	1258 priv.delayer.push_back(dwp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1259 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1260 else {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1261 free((void*)loto); // or we free it here
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1262 }
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1263
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1264 // accept the recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1265 if (!con.get_content_filtering()) st = white;
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1266
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1267 if (st == oksofar) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1268 // remember first content filtering context
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1269 if (con.get_content_filtering()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1270 if (!priv.content_context) priv.content_context = &con;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1271 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	1272 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	1273 return SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1274 }
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	1275 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	1276 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	1277 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	1278 // 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	1279 if (priv.helo_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1280 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	1281 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	1282 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1283 // content filterint implies also checking client reverse dns 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	1284 if (priv.client_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1285 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	1286 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	1287 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1288 // content filterint implies also checking mail from domain 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	1289 if (priv.from_uribl) {
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1290 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	1291 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	1292 }
c0d2e99c0a1d Add surbl checks on the smtp helo value, client reverse dns name, and mail from domain name Carl Byington <carl@five-ten-sg.com> parents: 235 diff changeset	1293 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	1294 char buf[maxlen];
238 7b818a4e21a4 produce correct uribl message Carl Byington <carl@five-ten-sg.com> parents: 236 diff changeset	1295 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	1296 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	1297 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	1298 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1299 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1300 // 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	1301 register_string(priv.env_to, rcptaddr, &con);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1302 priv.only_whites = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1303 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	1304 (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	1305 priv.want_dccgrey \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1306 (con.get_grey()); // want to use it for greylisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1307 priv.want_dccbulk \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1308 (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	1309 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1310 if (st == white) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1311 priv.have_whites = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1312 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1313 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1314 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1315
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1316 sfsistat mlfi_header(SMFICTX* ctx, char* headerf, char* headerv)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1317 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1318 mlfiPriv &priv = *MLFIPRIV;
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1319 // 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	1320 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	1321 ((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	1322 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	1323 }
ad38575e98ca Prevent auto whitelisting due to outgoing multipart/report delivery notifications. Carl Byington <carl@five-ten-sg.com> parents: 227 diff changeset	1324
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1325 // other headers are only needed for content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1326 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1327 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1328 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	1329 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	1330 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1331 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1332
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1333 sfsistat mlfi_eoh(SMFICTX* ctx)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1334 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1335 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1336 // delayed autowhitelisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1337 while (!priv.delayer.empty()) {
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1338 DELAYWHITEP dwp = priv.delayer.front();
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1339 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	1340 if (priv.allow_autowhitelisting) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1341 WHITELISTERP w = dwp->get_w();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1342 CONTEXTP con2 = dwp->get_con();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1343 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1344 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1345 char msg[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1346 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	1347 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1348 }
231 4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1349 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	1350 }
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1351 else {
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1352 if (debug_syslog > 1) {
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1353 char msg[maxlen];
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1354 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	1355 my_syslog(&priv, msg);
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1356 }
4d6bd04d93fa Fix memory leak in suppressed auto whitelisting. Carl Byington <carl@five-ten-sg.com> parents: 230 diff changeset	1357 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	1358 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1359 delete dwp;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1360 priv.delayer.pop_front();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1361 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1362 // content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1363 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1364 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1365 if (priv.want_spamassassin) priv.assassin->mlfi_eoh();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1366 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	1367 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1368 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1369
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1370 sfsistat mlfi_body(SMFICTX ctx, u_char data, size_t len)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1371 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1372 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1373 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1374 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1375 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	1376 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	1377 priv.scanner->scan(data, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1378 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1379 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1380
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1381 sfsistat mlfi_eom(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1382 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1383 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	1384 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	1385 const char *host = NULL;
242 d8ee4c97b9ab 64 bit fixes for libresolv.a Carl Byington <carl@five-ten-sg.com> parents: 238 diff changeset	1386 int32_t ip;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1387 // process end of message
190 004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	1388 priv.eom = true;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1389 if (priv.authenticated \|\| priv.only_whites) rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1390 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1391 // assert env_to not empty, it contains the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1392 // non-whitelisted folks that want content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1393 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	1394 bool grey = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1395 int bulk = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1396 if (priv.want_dccgrey \|\| priv.want_dccbulk) priv.dccifd->mlfi_eom(grey, bulk);
178 d6531c702be3 embedded dcc filtering carl parents: 177 diff changeset	1397
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1398 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1399 string msg;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1400 string_set alive;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1401 bool random = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1402 int limit = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1403 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	1404 const char rcpt = (i).first;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1405 CONTEXT &con = ((i).second);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1406 if (!con.acceptable_content(*priv.memory, score, bulk, msg)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1407 // bad html tags or excessive hosts or
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1408 // high spam assassin score or dcc bulk threshold exceedeed
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1409 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1410 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1411 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1412 alive.insert(rcpt);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1413 random \|= con.get_host_random();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1414 limit = max(limit, con.get_host_limit());
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1415 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1416 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1417 bool rejecting = alive.empty(); // if alive is empty, we must have set msg above in acceptable_content()
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1418 if (!rejecting) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1419 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	1420 const char *found;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1421 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	1422 if (found) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1423 // uribl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1424 snprintf(buf, sizeof(buf), fmt, host, found);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1425 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1426 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1427 // dnsbl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1428 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1429 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1430 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	1431 snprintf(buf, sizeof(buf), fmt, host, adr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1432 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1433 msg = string(buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1434 rejecting = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1435 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1436 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1437 if (!rejecting) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1438 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	1439 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	1440 rc = SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1441 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1442 else rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1443 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1444 else if (!priv.have_whites) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1445 // can reject the entire message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1446 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	1447 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	1448 rc = SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1449 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1450 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1451 // need to accept it but remove the recipients that don't want it
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1452 for (string_set::iterator i=alive.begin(); i!=alive.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	1453 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	1454 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1455 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1456 rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1457 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1458 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1459 // reset for a new message on the same connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1460 mlfi_abort(ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1461 return rc;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1462 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1463
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1464 sfsistat mlfi_abort(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1465 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1466 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1467 priv.reset();
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
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1471 sfsistat mlfi_close(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1472 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1473 mlfiPriv *priv = MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1474 if (!priv) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1475 delete priv;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1476 smfi_setpriv(ctx, NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1477 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1478 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1479
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1480 struct smfiDesc smfilter =
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1481 {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1482 (char*)"DNSBL", // filter name
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1483 SMFI_VERSION, // version code -- do not change
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1484 SMFIF_DELRCPT, // flags
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1485 mlfi_connect, // connection info filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1486 mlfi_helo, // SMTP HELO command filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1487 mlfi_envfrom, // envelope sender filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1488 mlfi_envrcpt, // envelope recipient filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1489 mlfi_header, // header filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1490 mlfi_eoh, // end of header
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1491 mlfi_body, // body block filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1492 mlfi_eom, // end of message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1493 mlfi_abort, // message aborted
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1494 mlfi_close, // connection cleanup
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1495 };
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1496
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1497
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1498 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1499 // reload the config
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1500 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1501 CONFIG* new_conf();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1502 CONFIG* new_conf() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1503 CONFIG *newc = new CONFIG;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1504 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1505 newc->generation = generation++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1506 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1507 if (debug_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1508 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1509 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	1510 my_syslog(buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1511 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1512 if (load_conf(*newc, "dnsbl.conf")) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1513 newc->load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1514 return newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1515 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1516 delete newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1517 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1518 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1519
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1520
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1521 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1522 // thread to watch the old config files for changes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1523 // and reload when needed.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1524 // we also clear the SMTP AUTH recipient counts hourly
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1525 //
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1526 extern "C" {void* config_loader(void *arg);}
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1527 void* config_loader(void *arg) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1528 int loop = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1529 while (loader_run) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1530 sleep(180); // look for modifications every 3 minutes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1531 if (!loader_run) break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1532 loop++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1533 if (loop == 20) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1534 // three minutes thru each loop, 20 loops per hour
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1535 // clear the recipient counts
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1536 pthread_mutex_lock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1537 for (rcpt_rates::iterator i=rcpt_counts.begin(); i!=rcpt_counts.end(); i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1538 (*i).second = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1539 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1540 pthread_mutex_unlock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1541 loop = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1542 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1543 CONFIG &dc = *config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1544 time_t then = dc.load_time;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1545 struct stat st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1546 bool reload = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1547 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	1548 const char fn = i;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1549 if (stat(fn, &st)) reload = true; // file disappeared
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1550 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	1551 if (reload) break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1552 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1553 if (reload) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1554 CONFIG *newc = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1555 if (newc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1556 // replace the global config pointer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1557 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1558 CONFIG *pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1559 bool last = pc && (!pc->reference_count);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1560 config = newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1561 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1562 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	1563 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1564 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1565 // failed to load new config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1566 my_syslog("failed to load new configuration");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1567 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	1568 // 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	1569 dc.load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1570 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1571 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1572 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1573 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1574 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1575
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1576
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1577 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	1578 void usage(const char *prog)
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1579 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1580 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	1581 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	1582 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	1583 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	1584 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	1585 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	1586 fprintf(stderr, " and should be one of\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1587 fprintf(stderr, " inet:port@ip-address\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1588 fprintf(stderr, " local:local-domain-socket-file-name\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1589 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	1590 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	1591 fprintf(stderr, " in an infinte loop.\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1592 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	1593 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	1594 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	1595 fprintf(stderr, " addresses in the argument to the -e switch\n");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1596 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1597
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1598
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1599
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1600 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	1601 void setup_socket(const char *sock) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1602 unlink(sock);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1603 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1604
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1605
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1606 /*
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1607 * The signal handler function -- only gets called when a SIGCHLD
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1608 * is received, ie when a child terminates
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1609 */
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1610 void sig_chld(int signo)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1611 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1612 int status;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1613 /* Wait for any child without blocking */
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1614 while (waitpid(-1, &status, WNOHANG) > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1615 // 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	1616 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1617 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1618
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1619
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1620 int main(int argc, char**argv)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1621 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1622 token_init();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1623 bool check = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1624 bool stress = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1625 bool setconn = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1626 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	1627 char *email = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1628 int c;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1629 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	1630 extern char *optarg;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1631
235 e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1632 // setup srs coding detection
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1633 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	1634 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	1635 exit(3);
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1636 }
e6c66640f6f9 Add SRS decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 233 diff changeset	1637
246 8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1638 // setup prvs coding detection
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1639 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	1640 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	1641 exit(3);
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1642 }
8b0f16abee53 Add prvs decoding to envelope addresses Carl Byington <carl@five-ten-sg.com> parents: 244 diff changeset	1643
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1644 // Process command line options
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1645 while ((c = getopt(argc, argv, args)) != -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1646 switch (c) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1647 case 'b':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1648 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1649 fprintf(stderr, "Illegal dccifd socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1650 exit(EX_USAGE);
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 dccifd_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1653 break;
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	1654
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1655 case 'r':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1656 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1657 fprintf(stderr, "Illegal resolver socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1658 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1659 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1660 resolver_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1661 setup_socket(resolver_port);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1662 setreso = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1663 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1664
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1665 case 'p':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1666 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1667 fprintf(stderr, "Illegal sendmail socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1668 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1669 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1670 if (smfi_setconn(optarg) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1671 fprintf(stderr, "smfi_setconn failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1672 exit(EX_SOFTWARE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1673 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1674 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	1675 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	1676 setconn = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1677 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1678
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1679 case 't':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1680 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1681 fprintf(stderr, "Illegal timeout: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1682 exit(EX_USAGE);
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 if (smfi_settimeout(atoi(optarg)) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1685 fprintf(stderr, "smfi_settimeout failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1686 exit(EX_SOFTWARE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1687 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1688 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1689
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1690 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	1691 if (email) free((void*)email);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1692 email = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1693 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1694
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1695 case 'c':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1696 check = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1697 break;
94 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 case 's':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1700 stress = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1701 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1702
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1703 case 'd':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1704 if (optarg == NULL \|\| *optarg == '\0') debug_syslog = 1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1705 else debug_syslog = atoi(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1706 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1707
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1708 case 'h':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1709 default:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1710 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1711 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1712 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1713 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1714
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1715 if (check) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1716 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1717 debug_syslog = 10;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1718 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1719 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1720 conf->dump();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1721 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1722 clear_strings(); // for valgrind checking
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1723 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1724 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1725 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1726 return 1; // config failed to load
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1727 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1728 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1729
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1730 if (stress) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1731 fprintf(stdout, "stress testing\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1732 while (1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1733 for (int i=0; i<10; i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1734 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1735 if (conf) delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1736 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1737 fprintf(stdout, ".");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1738 fflush(stdout);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1739 sleep(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1740 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1741 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1742
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1743 if (email) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1744 char *x = strchr(email, '\|');
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1745 if (x) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1746 *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	1747 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	1748 const char *to = to_lower_string(x+1);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1749 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1750 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1751 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1752 CONTEXTP con = conf->find_context(to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1753 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1754 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	1755 CONTEXTP fc = con->find_context(from);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1756 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	1757 const char *st = fc->find_from(from);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1758 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	1759 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	1760 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	1761 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1762 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1763 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1764 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1765 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1766
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1767 if (!setconn) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1768 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	1769 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1770 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1771 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1772
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1773 if (!setreso) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1774 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	1775 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1776 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1777 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1778
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1779 if (smfi_register(smfilter) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1780 fprintf(stderr, "smfi_register failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1781 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1782 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1783
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1784 // switch to background mode
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1785 if (daemon(1,0) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1786 fprintf(stderr, "daemon() call failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1787 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1788 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1789
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1790 // write the pid
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1791 const char *pidpath = "/var/run/dnsbl.pid";
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1792 unlink(pidpath);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1793 FILE *f = fopen(pidpath, "w");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1794 if (f) {
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1795 #ifdef linux
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1796 // from a comment in the DCC source code:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1797 // Linux threads are broken. Signals given the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1798 // original process are delivered to only the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1799 // thread that happens to have that PID. The
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1800 // sendmail libmilter thread that needs to hear
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1801 // SIGINT and other signals does not, and that breaks
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1802 // scripts that need to stop milters.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1803 // However, signaling the process group works.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1804 fprintf(f, "-%d\n", (u_int)getpgrp());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1805 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1806 fprintf(f, "%d\n", (u_int)getpid());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1807 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1808 fclose(f);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1809 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1810
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1811 // initialize the thread sync objects
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1812 pthread_mutex_init(&config_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1813 pthread_mutex_init(&syslog_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1814 pthread_mutex_init(&resolve_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1815 pthread_mutex_init(&fd_pool_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1816 pthread_mutex_init(&verifier_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1817 pthread_mutex_init(&whitelister_mutex, 0);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1818
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1819 // drop root privs
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1820 struct passwd *pw = getpwnam("dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1821 if (pw) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1822 if (setgid(pw->pw_gid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1823 my_syslog("failed to switch to group dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1824 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1825 if (setuid(pw->pw_uid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1826 my_syslog("failed to switch to user dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1827 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1828 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1829
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1830 // load the initial config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1831 config = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1832 if (!config) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1833 my_syslog("failed to load initial configuration, quitting");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1834 exit(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1835 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1836
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1837 // fork off the resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1838 pid_t child = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1839 if (child < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1840 my_syslog("failed to create resolver listener process");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1841 exit(0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1842 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1843 if (child == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1844 // we are the child - dns resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1845 resolver_socket = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1846 if (resolver_socket < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1847 my_syslog("child failed to create resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1848 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1849 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1850 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1851 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1852 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1853 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	1854 //try to bind the address to the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1855 if (bind(resolver_socket, (sockaddr *)&server, sizeof(server)) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1856 // bind failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1857 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1858 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1859 my_syslog("child failed to bind resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1860 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1861 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1862 //listen on the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1863 if (listen(resolver_socket, 10) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1864 // listen failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1865 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1866 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1867 my_syslog("child failed to listen to resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1868 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1869 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1870 // setup sigchld handler to prevent zombies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1871 struct sigaction act;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1872 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	1873 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	1874 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	1875 if (sigaction(SIGCHLD, &act, NULL) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1876 my_syslog("child failed to setup SIGCHLD handler");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1877 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1878 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1879 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1880 sockaddr_un client;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1881 socklen_t clientlen = sizeof(client);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1882 int s = accept(resolver_socket, (sockaddr *)&client, &clientlen);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1883 if (s > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1884 // 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	1885 // fork off a process to handle this connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1886 int newchild = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1887 if (newchild == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1888 // this is the worker process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1889 // child does not need the listening socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1890 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	1891 #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	1892 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	1893 _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	1894 _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	1895 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1896 process_resolver_requests(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1897 exit(0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1898 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1899 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1900 // this is the parent
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1901 // parent does not need the accepted socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1902 close(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1903 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1904 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1905 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1906 exit(0); // make sure we don't fall thru.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1907 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1908 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1909 sleep(2); // allow child to get started
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1910 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1911
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1912 // only create threads after the fork() in daemon
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1913 pthread_t tid;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1914 if (pthread_create(&tid, 0, config_loader, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1915 my_syslog("failed to create config loader thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1916 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1917 my_syslog("failed to detach config loader thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	1918
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1919 if (pthread_create(&tid, 0, verify_closer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1920 my_syslog("failed to create verify closer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1921 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1922 my_syslog("failed to detach verify closer thread");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1923
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1924 if (pthread_create(&tid, 0, whitelister_writer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1925 my_syslog("failed to create autowhite writer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1926 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1927 my_syslog("failed to detach autowhite writer thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	1928
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1929 time_t starting = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1930 int rc = smfi_main();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1931 if ((rc != MI_SUCCESS) && (time(NULL) > starting+5*60)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1932 my_syslog("trying to restart after smfi_main()");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1933 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	1934 execvp(argv[0], argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1935 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1936 exit((rc == MI_SUCCESS) ? 0 : EX_UNAVAILABLE);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1937 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1938

Mercurial > dnsbl

annotate src/dnsbl.cpp @ 252:836b7f2357f9