dnsbl: src/dnsbl.cpp annotate

annotate src/dnsbl.cpp @ 225:8e1cbf3d96fc stable-6-0-20

simple dns lookup failure need not kill the resolver process

author	Carl Byington <carl@five-ten-sg.com>
date	Mon, 29 Dec 2008 18:12:22 -0800
parents	da9e7f1c8160
children	3fee608becbc

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
152 c7fc218686f5 gpl3, block mail to recipients that cannot reply carl parents: 150 diff changeset	3 Copyright (c) 2007 Carl Byington - 510 Software Group, released under
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
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	68 extern "C" {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	69 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	70 sfsistat mlfi_helo(SMFICTX * ctx, char *helohost);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	71 sfsistat mlfi_envfrom(SMFICTX ctx, char *argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	72 sfsistat mlfi_envrcpt(SMFICTX ctx, char *argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	73 sfsistat mlfi_header(SMFICTX* ctx, char* headerf, char* headerv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	74 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	75 sfsistat mlfi_eom(SMFICTX *ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	76 sfsistat mlfi_abort(SMFICTX *ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	77 sfsistat mlfi_close(SMFICTX *ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	78 void sig_chld(int signo);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	79 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	80
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	81 int debug_syslog = 0;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	82 bool syslog_opened = false;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	83 bool use_syslog = true; // false to printf
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	84 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	85 CONFIG *config = NULL; // protected by the config_mutex
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	86 int generation = 0; // protected by the config_mutex
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	87 const int maxlen = 1000; // used for snprintf buffers
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	88
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	89 pthread_mutex_t config_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	90 pthread_mutex_t syslog_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	91 pthread_mutex_t resolve_mutex;
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	92 pthread_mutex_t fd_pool_mutex;
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	93 pthread_mutex_t rate_mutex;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	94
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	95 std::set<int> fd_pool;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	96 int NULL_SOCKET = -1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	97 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	98 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	99 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	100 const char *dccifd_port = NULL; // unix domain socket to talk to the dcc interface daemon
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	101 time_t last_error_time;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	102 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	103 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	104 rcpt_rates rcpt_counts; // protected with rate_mutex
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	105
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	106
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	107 struct ns_map {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	108 // 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	109 string_map ns_host; // nameserver name -> host name that uses this name server
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	110 ns_mapper ns_ip; // nameserver name -> ip address of the name server
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	111 ~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	112 void add(const char name, const char refer);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	113 };
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	114
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	115
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	116 ns_map::~ns_map() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	117 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	118 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	119 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	120 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	121 free((void*)y);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	122 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	123 ns_ip.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	124 ns_host.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	125 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	126
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	127
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	128 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	129 string_map::iterator i = ns_host.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	130 if (i != ns_host.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	131 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	132 char *y = strdup(refer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	133 ns_ip[x] = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	134 ns_host[x] = y;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	135
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	136 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	137
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	138 // packed structure to allow a single socket write to dump the
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	139 // length and the following answer. The packing attribute is gcc specific.
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	140 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	141 size_t length;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	142 #ifdef NS_PACKETSZ
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	143 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	144 #else
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	145 int answer; // without a resolver, we return a single ip4 address, 0 == no answer
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	146 #endif
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	147 } __attribute__ ((packed));
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 ////////////////////////////////////////////////
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	151 // helper to manipulate recipient counts
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	152 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	153 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	154 int incr_rcpt_count(const char *user) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	155 pthread_mutex_lock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	156 rcpt_rates::iterator i = rcpt_counts.find(user);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	157 int c = 1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	158 if (i == rcpt_counts.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	159 user = strdup(user);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	160 rcpt_counts[user] = c;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	161 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	162 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	163 c = ++((*i).second);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	164 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	165 pthread_mutex_unlock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	166 return c;
136 f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	167 }
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	168
f4746d8a12a3 add smtp auth rate limits carl parents: 134 diff changeset	169 ////////////////////////////////////////////////
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	170 // helper to discard the strings held by a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	171 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	172 void discard(context_map &cm);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	173 void discard(context_map &cm) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	174 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	175 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	176 free((void*)x);
192 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 cm.clear();
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	179 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	180
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	181
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	182 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	183 // helper to register a string in a context_map
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	184 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	185 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	186 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	187 context_map::iterator i = cm.find(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	188 if (i != cm.end()) return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	189 char *x = strdup(name);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	190 cm[x] = con;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	191 }
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 // disconnect the fd from the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	196 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	197 void my_disconnect(int sock, bool decrement = true);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	198 void my_disconnect(int sock, bool decrement) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	199 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	200 if (decrement) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	201 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	202 resolver_sock_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	203 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	204 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	205 shutdown(sock, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	206 close(sock);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	207 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	208 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	209
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	210
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	211 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	212 // return fd connected to the dns resolver process
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	213 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	214 int my_connect();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	215 int my_connect() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	216 // 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	217 if ((time(NULL) - last_error_time) < ERROR_SOCKET_TIME) return NULL_SOCKET;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	218
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	219 // nothing recent, maybe this time it will work
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	220 int sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	221 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	222 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	223 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	224 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	225 sock = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	226 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	227 bool rc = (connect(sock, (sockaddr *)&server, sizeof(server)) == 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	228 if (!rc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	229 my_disconnect(sock, false);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	230 sock = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	231 last_error_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	232 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	233 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	234 else last_error_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	235 if (sock != NULL_SOCKET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	236 pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	237 resolver_sock_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	238 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	239 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	240 return sock;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	241 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	242
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	243
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	244 mlfiPriv::mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	245 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	246 pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	247 pc->reference_count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	248 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	249 get_fd();
190 004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	250 ctx = NULL;
004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	251 eom = false;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	252 ip = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	253 helo = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	254 mailaddr = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	255 queueid = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	256 authenticated = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	257 client_name = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	258 have_whites = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	259 only_whites = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	260 want_spamassassin = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	261 want_dccgrey = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	262 want_dccbulk = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	263 is_bulk_precedence = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	264 content_context = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	265 memory = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	266 scanner = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	267 content_suffix = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	268 content_message = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	269 uribl_suffix = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	270 uribl_message = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	271 content_host_ignore = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	272 assassin = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	273 dccifd = NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	274 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	275
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	276 mlfiPriv::~mlfiPriv() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	277 return_fd();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	278 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	279 pc->reference_count--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	280 bool last = (!pc->reference_count) && (pc != config);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	281 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	282 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	283 if (helo) free((void*)helo);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	284 reset(true);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	285 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	286
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	287 void mlfiPriv::reset(bool final) {
194 688ec12a3c0c delay autowhitelisting to avoid out of office reply bots carl parents: 193 diff changeset	288 while (!delayer.empty()) {
193 3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	289 DELAYWHITEP dwp = delayer.front();
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	290 delete dwp;
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	291 delayer.pop_front();
3ea79ef741a0 delay autowhitelisting to avoid out of office reply bots carl parents: 192 diff changeset	292 }
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	293 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	294 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	295 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	296 if (client_name) free((void*)client_name);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	297 delayer.clear();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	298 discard(env_to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	299 if (memory) delete memory;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	300 if (scanner) delete scanner;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	301 if (assassin) delete assassin;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	302 if (dccifd) delete dccifd;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	303 if (!final) {
190 004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	304 ctx = NULL;
004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	305 eom = false;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	306 mailaddr = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	307 queueid = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	308 authenticated = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	309 client_name = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	310 have_whites = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	311 only_whites = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	312 want_spamassassin = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	313 want_dccgrey = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	314 want_dccbulk = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	315 is_bulk_precedence = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	316 content_context = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	317 memory = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	318 scanner = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	319 content_suffix = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	320 content_message = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	321 uribl_suffix = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	322 uribl_message = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	323 content_host_ignore = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	324 assassin = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	325 dccifd = NULL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	326 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	327 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	328
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	329 void mlfiPriv::get_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	330 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	331 fd = NULL_SOCKET;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	332 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	333 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	334 std::set<int>::iterator i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	335 i = fd_pool.begin();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	336 if (i != fd_pool.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	337 // have at least one fd in the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	338 err = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	339 fd = *i;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	340 fd_pool.erase(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	341 resolver_pool_size--;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	342 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	343 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	344 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	345 // pool is empty, get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	346 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	347 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	348 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	349 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	350 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	351 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	352 // cannot lock the pool, just get a new fd
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	353 fd = my_connect();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	354 err = (fd == NULL_SOCKET);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	355 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	356 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	357
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	358 void mlfiPriv::return_fd() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	359 if (err) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	360 // 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	361 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	362 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	363 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	364 int result = pthread_mutex_lock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	365 if (!result) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	366 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	367 // return the fd to the pool
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	368 fd_pool.insert(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	369 resolver_pool_size++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	370 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	371 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	372 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	373 // 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	374 // 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	375 pthread_mutex_unlock(&fd_pool_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	376 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	377 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	378 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	379 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	380 // 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	381 my_disconnect(fd);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	382 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	383 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	384 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	385
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	386 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	387 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	388 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	389 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	390 size_t ws = write(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	391 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	392 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	393 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	394 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	395 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	396 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	397 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	398 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	399 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	400 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	401 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	402 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	403 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	404 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	405
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	406 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	407 if (err) return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	408 size_t rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	409 while (len) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	410 size_t ws = read(fd, buf, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	411 if (ws > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	412 rs += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	413 len -= ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	414 buf += ws;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	415 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	416 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	417 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	418 rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	419 err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	420 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	421 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	422 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	423 return rs;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	424 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	425
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	426 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	427 register_string(env_to, rcpt, &con);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	428 if (!memory) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	429 // first recipient that needs content filtering sets
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	430 // some of the content filtering parameters
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	431 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	432 scanner = new url_scanner(memory);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	433 content_suffix = con.get_content_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	434 content_message = con.get_content_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	435 uribl_suffix = con.get_uribl_suffix();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	436 uribl_message = con.get_uribl_message();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	437 content_host_ignore = &con.get_content_host_ignore();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	438 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	439 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	440
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	441
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	442 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx);
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	443 mlfiPriv* fetch_priv_from_ctx(SMFICTX *ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	444 {
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	445 mlfiPriv priv = (struct mlfiPriv )smfi_getpriv(ctx);
187 f0eda59e8afd fix null pointer dereference from missing HELO command carl parents: 186 diff changeset	446 priv->ctx = ctx;
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	447 return priv;
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	448 }
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	449 #define MLFIPRIV fetch_priv_from_ctx(ctx)
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	450
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	451
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	452
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	453 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	454 // syslog a message
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	455 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	456 void my_syslog(mlfiPriv priv, const char text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	457 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	458 if (priv) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	459 snprintf(buf, sizeof(buf), "%s: %s", priv->queueid, text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	460 text = buf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	461 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	462 if (use_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	463 pthread_mutex_lock(&syslog_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	464 if (!syslog_opened) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	465 openlog("dnsbl", LOG_PID, LOG_MAIL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	466 syslog_opened = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	467 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	468 syslog(LOG_NOTICE, "%s", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	469 pthread_mutex_unlock(&syslog_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	470 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	471 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	472 printf("%s \n", text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	473 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	474 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	475
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	476 void my_syslog(mlfiPriv *priv, const string text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	477 if (debug_syslog > 3) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	478 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	479 strncpy(buf, text.c_str(), sizeof(buf));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	480 buf[maxlen-1] = '\0'; // ensure null termination
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	481 my_syslog(priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	482 }
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	483 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	484
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	485 void my_syslog(const char *text) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	486 my_syslog(NULL, text);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	487 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	488
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	489
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	490 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	491 // 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	492 // write the result back to the socket.
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	493
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	494 void process_resolver_requests(int socket);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	495 void process_resolver_requests(int socket) {
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	496 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	497 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	498 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	499 char question[1000];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	500 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	501 glommer glom;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	502
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	503 int maxq = sizeof(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	504 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	505 // read a question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	506 int rs = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	507 while (rs < maxq) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	508 int ns = read(socket, question+rs, maxq-rs);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	509 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	510 rs += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	511 if (question[rs-1] == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	512 // 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	513 break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	514 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	515 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	516 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	517 // peer closed the socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	518 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	519 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	520 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	521 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	522 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	523 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	524 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	525 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	526 question[rs-1] = '\0'; // ensure null termination
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	527
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	528 // find the answer
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	529 #ifdef NS_PACKETSZ
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	530 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	531 char text[1000];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	532 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	533 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	534 #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	535 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	536 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	537 else glom.length = (size_t)res_result;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	538 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	539 glom.length = sizeof(glom.answer);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	540 glom.answer = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	541 struct hostent *host = gethostbyname(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	542 if (host && (host->h_addrtype == AF_INET)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	543 memcpy(&glom.answer, host->h_addr, sizeof(glom.answer));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	544 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	545 #endif
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	546
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	547 // write the answer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	548 char buf = (char )&glom;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	549 int len = glom.length + sizeof(glom.length);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	550 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	551 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	552 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	553 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	554 int ws = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	555 while (len > ws) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	556 int ns = write(socket, buf+ws, len-ws);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	557 if (ns > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	558 ws += ns;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	559 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	560 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	561 // peer closed the socket!
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	562 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	563 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	564 #endif
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	565 shutdown(socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	566 close(socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	567 return;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	568 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	569 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	570 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	571 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	572
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	573
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	574 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	575 // ask a dns question and get an A record answer - we don't try
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	576 // very hard, just using the default resolver retry settings.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	577 // If we cannot get an answer, we just accept the mail.
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	578 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	579 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	580 int dns_interface(mlfiPriv &priv, const char question, bool maybe_ip, ns_map nameservers);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	581 int dns_interface(mlfiPriv &priv, const char question, bool maybe_ip, ns_map nameservers) {
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	582 // tell sendmail we are still working
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	583 #if _FFR_SMFI_PROGRESS
190 004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	584 if (priv.eom) smfi_progress(priv.ctx);
186 2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	585 #endif
2a80c9b5d2c9 fix null pointer dereference from missing HELO command carl parents: 185 diff changeset	586
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	587 // this part can be done without locking the resolver mutex. Each
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	588 // milter thread is talking over its own socket to a separate resolver
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	589 // process, which does the actual dns resolution.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	590 if (priv.err) return 0; // cannot ask more questions on this socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	591 if (maybe_ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	592 // might be a bare ip address, try this first to avoid dns lookups that may not be needed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	593 in_addr ip;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	594 if (inet_aton(question, &ip)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	595 return (int)ip.s_addr;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	596 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	597 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	598 int n = strlen(question);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	599 if (question[n-1] == '.') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	600 priv.my_write(question, n+1); // write the question including the null terminator
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	601 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	602 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	603 priv.my_write(question, n); // write the question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	604 priv.my_write(".", 2); // and the fully qualified . terminator and null string terminator
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	605 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	606 glommer glom;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	607 char buf = (char )&glom;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	608 priv.my_read(buf, sizeof(glom.length));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	609 buf += sizeof(glom.length);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	610 #ifdef RESOLVER_DEBUG
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	611 char text[1000];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	612 snprintf(text, sizeof(text), "dns_interface() wrote question %s and has answer length %d", question, glom.length);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	613 my_syslog(text);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	614 #endif
225 8e1cbf3d96fc simple dns lookup failure need not kill the resolver process Carl Byington <carl@five-ten-sg.com> parents: 223 diff changeset	615 if (glom.length == 0) return 0;
8e1cbf3d96fc simple dns lookup failure need not kill the resolver process Carl Byington <carl@five-ten-sg.com> parents: 223 diff changeset	616 if (glom.length > sizeof(glom.answer)) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	617 priv.err = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	618 return 0; // cannot process overlarge answers
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	619 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	620 priv.my_read(buf, glom.length);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	621
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	622 #ifdef NS_PACKETSZ
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	623 // now we need to lock the resolver mutex to keep the milter threads from
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	624 // stepping on each other while parsing the dns answer.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	625 int ret_address = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	626 pthread_mutex_lock(&resolve_mutex);
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	627 // parse the 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	628 ns_msg handle;
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	629 ns_rr rr;
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	630 if (ns_initparse(glom.answer, glom.length, &handle) == 0) {
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	631 // look for ns names
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	632 if (nameservers) {
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	633 ns_map &ns = *nameservers;
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	634 int rrnum = 0;
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	635 while (ns_parserr(&handle, ns_s_ns, rrnum++, &rr) == 0) {
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	636 if (ns_rr_type(rr) == ns_t_ns) {
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	637 char nam[NS_MAXDNAME+1];
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	638 char *n = nam;
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	639 const u_char *p = ns_rr_rdata(rr);
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	640 while (((n-nam) < NS_MAXDNAME) && ((size_t)(p-glom.answer) < glom.length) && *p) {
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	641 size_t s = *(p++);
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	642 if (s > 191) {
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	643 // compression pointer
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	644 s = (s-192)256 + (p++);
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	645 if (s >= glom.length) break; // pointer outside bounds of 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	646 p = glom.answer + s;
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	647 s = *(p++);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	648 }
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	649 if (s > 0) {
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	650 if ((size_t)(n-nam) >= (NS_MAXDNAME-s)) break; // destination would overflow name buffer
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	651 if ((size_t)(p-glom.answer) >= (glom.length-s)) break; // source outside bounds of 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	652 memcpy(n, p, s);
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	653 n += s;
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	654 p += s;
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	655 *(n++) = '.';
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	656 }
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	657 }
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	658 if (n-nam) n--; // remove trailing .
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	659 *n = '\0'; // null terminate it
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	660 ns.add(nam, question); // ns host to lookup later
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	661 }
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	662 }
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	663 rrnum = 0;
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	664 while (ns_parserr(&handle, ns_s_ar, rrnum++, &rr) == 0) {
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	665 if (ns_rr_type(rr) == ns_t_a) {
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	666 char* nam = (char*)ns_rr_name(rr);
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	667 ns_mapper::iterator i = ns.ns_ip.find(nam);
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	668 if (i != ns.ns_ip.end()) {
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	669 // we want this ip address
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	670 int address;
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	671 memcpy(&address, ns_rr_rdata(rr), sizeof(address));
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	672 ns.ns_ip[nam] = address;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	673 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	674 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	675 }
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	676 }
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	677 int rrnum = 0;
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	678 while (ns_parserr(&handle, ns_s_an, rrnum++, &rr) == 0) {
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	679 if (ns_rr_type(rr) == ns_t_a) {
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	680 int address;
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	681 memcpy(&address, ns_rr_rdata(rr), sizeof(address));
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	682 ret_address = address;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	683 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	684 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	685 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	686 pthread_mutex_unlock(&resolve_mutex);
222 b2a7ca398712 add dns resolver debugging Carl Byington <carl@five-ten-sg.com> parents: 220 diff changeset	687 #ifdef RESOLVER_DEBUG
b2a7ca398712 add dns resolver debugging Carl Byington <carl@five-ten-sg.com> parents: 220 diff changeset	688 snprintf(text, sizeof(text), "dns_interface() found ip %d", ret_address);
b2a7ca398712 add dns resolver debugging Carl Byington <carl@five-ten-sg.com> parents: 220 diff changeset	689 my_syslog(text);
b2a7ca398712 add dns resolver debugging Carl Byington <carl@five-ten-sg.com> parents: 220 diff changeset	690 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	691 return ret_address;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	692 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	693 return glom.answer;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	694 #endif
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	695 }
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 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	699 // check a single dnsbl
94 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 bool check_single(mlfiPriv &priv, int ip, const char *suffix);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	702 bool check_single(mlfiPriv &priv, int ip, const char *suffix) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	703 // make a dns question
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	704 const u_char src = (const u_char )&ip;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	705 if (src[0] == 127) return false; // don't do dns lookups on localhost
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	706 if (src[0] == 10) return false; // don't do dns lookups on rfc1918 space
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	707 if ((src[0] == 192) && (src[1] == 168)) return false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	708 if ((src[0] == 172) && (16 <= src[1]) && (src[1] <= 31)) return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	709 #ifdef NS_MAXDNAME
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	710 char question[NS_MAXDNAME];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	711 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	712 char question[1000];
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	713 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	714 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	715 // 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	716 return dns_interface(priv, question, false, NULL);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	717 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	718
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	719
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	720 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	721 // check a single dnsbl
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	722 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	723 bool check_single(mlfiPriv &priv, int ip, DNSBL &bl);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	724 bool check_single(mlfiPriv &priv, int ip, DNSBL &bl) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	725 return check_single(priv, ip, bl.suffix);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	726 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	727
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	728
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	729 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	730 // check the dnsbls specified for this recipient
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	731 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	732 bool check_dnsbl(mlfiPriv &priv, dnsblp_list &dnsbll, DNSBLP &rejectlist);
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	733 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	734 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	735 DNSBLP dp = *i; // non null by construction
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	736 bool st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	737 map<DNSBLP, bool>::iterator f = priv.checked.find(dp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	738 if (f == priv.checked.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	739 // have not checked this list yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	740 st = check_single(priv, priv.ip, *dp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	741 rejectlist = dp;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	742 priv.checked[dp] = st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	743 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	744 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	745 st = (*f).second;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	746 rejectlist = (*f).first;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	747 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	748 if (st) return st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	749 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	750 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	751 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	752
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	753
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	754 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	755 // lookup the domain name part of a hostname on the uribl
117 aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	756 //
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	757 // if we find part of the hostname on the uribl, return
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	758 // true and point found to the part of the hostname that we found
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	759 // as a string registered in hosts.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	760 // otherwise, return false and preserve the value of found.
124 ea6f9c812faa put hostname in smtp message for uribl style lookups carl parents: 123 diff changeset	761 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	762 bool uriblookup(mlfiPriv &priv, string_set &hosts, const char hostname, const char top, const char *&found) ;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	763 bool uriblookup(mlfiPriv &priv, string_set &hosts, const char hostname, const char top, const char *&found) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	764 // top is pointer to '.' char at end of base domain, or null for ip address form
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	765 // so for hostname of www.fred.mydomain.co.uk
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	766 // top points to-----------------------^
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	767 // and we end up looking at only mydomain.co.uk, ignoring the www.fred stuff
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	768 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	769 if (top) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	770 // add one more component
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	771 const char x = (const char )memrchr(hostname, '.', top-hostname);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	772 if (x) hostname = x+1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	773 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	774 snprintf(buf, sizeof(buf), "%s.%s.", hostname, priv.uribl_suffix);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	775 if (dns_interface(priv, buf, false, NULL)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	776 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	777 char tmp[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	778 snprintf(tmp, sizeof(tmp), "found %s on %s", hostname, priv.uribl_suffix);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	779 my_syslog(tmp);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	780 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	781 found = register_string(hosts, hostname);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	782 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	783 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	784 return false;
117 aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	785 }
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	786
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	787
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	788 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	789 // uribl checker
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	790 // -------------
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	791 // hostname MUST not have a trailing dot
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	792 // If tld, two level lookup.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	793 // Else, look up three level domain.
124 ea6f9c812faa put hostname in smtp message for uribl style lookups carl parents: 123 diff changeset	794 //
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	795 // if we find part of the hostname on the uribl, return
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	796 // true and point found to the part of the hostname that we found
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	797 // as a string registered in hosts.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	798 // otherwise, return false and preserve the value of found.
124 ea6f9c812faa put hostname in smtp message for uribl style lookups carl parents: 123 diff changeset	799 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	800 bool check_uribl(mlfiPriv &priv, string_set &hosts, const char hostname, const char &found) ;
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	801 bool check_uribl(mlfiPriv &priv, string_set &hosts, const char hostname, const char &found) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	802 in_addr ip;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	803 if (inet_aton(hostname, &ip)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	804 const u_char src = (const u_char )&ip.s_addr;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	805 if (src[0] == 127) return false; // don't do dns lookups on localhost
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	806 if (src[0] == 10) return false; // don't do dns lookups on rfc1918 space
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	807 if ((src[0] == 192) && (src[1] == 168)) return false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	808 if ((src[0] == 172) && (16 <= src[1]) && (src[1] <= 31)) return false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	809 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	810 snprintf(adr, sizeof(adr), "%u.%u.%u.%u", src[3], src[2], src[1], src[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	811 // cannot use inet_ntop here since we want the octets reversed.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	812 return (uriblookup(priv, hosts, adr, NULL, found));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	813 }
117 aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	814
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	815 const char top, top2, *top3;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	816 top = strrchr(hostname, '.');
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	817 if (top) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	818 top2 = (const char *)memrchr(hostname, '.', top-hostname);
117 aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	819
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	820 if (top2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	821 string_set::iterator i = priv.memory->get_cctlds()->find(top2+1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	822 string_set::iterator x = priv.memory->get_cctlds()->end();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	823 // if we have a 2-level-cctld, just look at top three levels of the name
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	824 if (i != x) return uriblookup(priv, hosts, hostname, top2, found);
117 aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	825
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	826 // if we have more than 3 levels in the name, look at the top three levels of the name
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	827 top3 = (const char *)memrchr(hostname, '.', top2-hostname);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	828 if (top3 && uriblookup(priv, hosts, hostname, top2, found)) return true;
117 aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	829
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	830 // if that was not found, fall thru to looking at the top two levels
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	831 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	832 // look at the top two levels of the name
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	833 return uriblookup(priv, hosts, hostname, top, found);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	834 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	835 return false;
117 aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	836 }
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	837
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	838
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com> carl parents: 115 diff changeset	839 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	840 // check the hosts from the body against the content filter and uribl dnsbls
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	841 //
124 ea6f9c812faa put hostname in smtp message for uribl style lookups carl parents: 123 diff changeset	842 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	843 bool check_hosts(mlfiPriv &priv, bool random, int limit, const char &msg, const char &host, int &ip, const char *&found);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	844 bool check_hosts(mlfiPriv &priv, bool random, int limit, const char &msg, const char &host, int &ip, const char *&found) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	845 found = NULL; // normally ip address style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	846 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	847 string_set &hosts = priv.memory->get_hosts();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	848 string_set &ignore = *priv.content_host_ignore;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	849
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	850 int count = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	851 int cnt = hosts.size(); // number of hosts we could look at
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	852 int_set ips;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	853 ns_map nameservers;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	854 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	855 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	856
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	857 // 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	858 string_set::iterator j = ignore.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	859 if (j != ignore.end()) continue;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	860
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	861 // 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	862 if ((cnt > limit) && (limit > 0) && random) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	863 int r = rand() % cnt;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	864 if (r >= limit) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	865 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	866 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	867 snprintf(buf, sizeof(buf), "host %s skipped", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	868 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	869 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	870 continue;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	871 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	872 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	873 count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	874 ip = dns_interface(priv, host, true, &nameservers);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	875 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	876 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	877 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	878 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	879 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	880 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	881 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	882 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	883 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	884 snprintf(buf, sizeof(buf), "host %s not found", host);
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 my_syslog(&priv, buf);
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 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	889 int_set::iterator i = ips.find(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	890 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	891 // we haven't looked this up yet
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	892 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	893 // check dnsbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	894 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	895 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	896 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	897 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	898 // Check uribl & surbl style list
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	899 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	900 msg = priv.uribl_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	901 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	902 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	903 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	904 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	905 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	906 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	907 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	908 count++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	909 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	910 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	911 ip = (*i).second;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	912 if (!ip) ip = dns_interface(priv, host, false, NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	913 if (debug_syslog > 2) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	914 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	915 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	916 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	917 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	918 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	919 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	920 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	921 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	922 snprintf(buf, sizeof(buf), "ns %s not found", host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	923 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	924 my_syslog(&priv, buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	925 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	926 if (ip) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	927 int_set::iterator i = ips.find(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	928 if (i == ips.end()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	929 ips.insert(ip);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	930 if (check_single(priv, ip, priv.content_suffix)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	931 msg = priv.content_message;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	932 string_map::iterator j = nameservers.ns_host.find(host);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	933 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	934 const char refer = (j).second;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	935 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	936 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	937 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	938 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	939 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	940 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	941 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	942 return true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	943 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	944 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	945 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	946 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	947 return false;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	948 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	949
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	950
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	951 ////////////////////////////////////////////////
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	952 //
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	953 // 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	954 // enclosed in <>. I think older versions of sendmail supplied the <>
127 2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes carl parents: 126 diff changeset	955 // 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	956 // 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	957 // 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	958 // to lower case. Some clients enclose the entire address in single quotes,
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	959 // so we strip those as well.
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	960 //
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	961 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	962 const char to_lower_string(const char email) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	963 int n = strlen(email);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	964 if (email[0] == '<') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	965 // assume it also ends with >
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	966 n -= 2;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	967 if (n < 1) return strdup(email); // return "<>"
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	968 email++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	969 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	970 if ((email[0] == '\'') && (email[n-1] == '\'') && (n > 2)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	971 n -= 2;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	972 email++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	973 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	974 char *key = strdup(email);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	975 key[n] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	976 for (int i=0; i<n; i++) key[i] = tolower(key[i]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	977 return key;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	978 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	979
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	980
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	981 ////////////////////////////////////////////////
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	982 // start of sendmail milter interfaces
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	983 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	984 sfsistat mlfi_connect(SMFICTX ctx, char hostname, _SOCK_ADDR *hostaddr)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	985 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	986 // allocate some private memory
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	987 mlfiPriv *priv = new mlfiPriv;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	988 if (hostaddr->sa_family == AF_INET) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	989 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	990 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	991 // save the private data
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	992 smfi_setpriv(ctx, (void*)priv);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	993
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	994 // continue processing
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	995 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	996 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	997
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	998 sfsistat mlfi_helo(SMFICTX * ctx, char *helohost)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	999 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1000 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1001 priv.helo = strdup(helohost);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1002 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1003 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1004
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1005 sfsistat mlfi_envfrom(SMFICTX ctx, char *from)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1006 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1007 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1008 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	1009 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	1010 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	1011 priv.client_name = smfi_getsymval(ctx, (char*)"_");
191 2a67d31099c3 fix null pointer dereference from missing HELO command carl parents: 190 diff changeset	1012 if (!priv.helo) priv.helo = strdup("unknown");
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1013 if (priv.authenticated) priv.authenticated = strdup(priv.authenticated);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1014 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	1015 if (spamc != spamc_empty) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1016 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	1017 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1018 if (dccifd_port) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1019 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	1020 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1021 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1022 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1023
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1024 sfsistat mlfi_envrcpt(SMFICTX ctx, char *rcpt)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1025 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1026 DNSBLP rejectlist = NULL; // list that caused the reject
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1027 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1028 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	1029 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	1030 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	1031 bool self = (strcmp(loto, priv.mailaddr) == 0);
174 da0c41b9f672 don't whitelist addresses with embedded spaces carl parents: 173 diff changeset	1032
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1033 // 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	1034 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	1035 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	1036 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1037 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1038 // 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	1039 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	1040 VERIFYP ver = con.find_verify(loto);
82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1041 const char *fromvalue = con.find_from(priv.mailaddr, true);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1042 // tell spam assassin and dccifd about this recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1043 if (priv.assassin) priv.assassin->mlfi_envrcpt(ctx, loto);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1044 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	1045 // loto sending a reply back to priv.mailaddr
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1046 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	1047 const char *replyvalue = con2.find_from(loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1048 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1049 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1050 char msg[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1051 snprintf(msg, sizeof(msg), "from <%s> to <%s> using context %s state %s reply state %s", priv.mailaddr, loto, con.get_full_name(buf,maxlen), fromvalue, replyvalue);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1052 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1053 }
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1054 free((void*)loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1055 status st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1056 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	1057 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	1058 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1059 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1060 if (priv.authenticated) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1061 int c = incr_rcpt_count(priv.authenticated);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1062 int l = dc.default_context->find_rate(priv.authenticated);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1063 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1064 char msg[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1065 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	1066 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1067 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1068 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	1069 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	1070 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1071 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1072 st = white;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1073 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1074 else if (fromvalue == token_black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1075 st = black;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1076 }
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	1077 else if ((fromvalue == token_white) && !self) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1078 st = white;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1079 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1080 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1081 // check the dns based lists
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1082 st = (check_dnsbl(priv, con.get_dnsbl_list(), rejectlist)) ? reject : oksofar;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1083 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1084 if (st == reject) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1085 // reject the recipient based on some dnsbl
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1086 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1087 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1088 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	1089 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1090 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	1091 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	1092 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1093 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1094 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	1095 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	1096 if (msg) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1097 // reject the recipient based on generic reverse dns
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1098 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1099 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	1100 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	1101 return SMFIS_REJECT;
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 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1104 if (st == black) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1105 // 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	1106 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	1107 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1108 }
203 92a5c866bdfa Verify from/to pairs even if they might be explicitly whitelisted. Carl Byington <carl@five-ten-sg.com> parents: 194 diff changeset	1109 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	1110 // 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	1111 const char *loto = to_lower_string(rcptaddr);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1112 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	1113 free((void*)loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1114 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	1115 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	1116 return SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1117 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1118 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1119 // 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	1120 // if needed to ensure we can accept replies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1121 loto = to_lower_string(rcptaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1122 WHITELISTERP w = con2.find_autowhite(loto, priv.mailaddr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1123 // check if local part is too big
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1124 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	1125 const char *p = strchr(loto, '@');
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1126 int len = (p) ? p-loto : max_local_size;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1127 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	1128 // record it if we have a whitelister
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1129 if (w) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1130 DELAYWHITEP dwp = new DELAYWHITE(loto, w, &con2);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1131 priv.delayer.push_back(dwp);
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 else {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1134 free((void*)loto);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1135 }
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1136
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1137 // accept the recipient
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1138 if (!con.get_content_filtering()) st = white;
179 8b86a894514d embedded dcc filtering carl parents: 178 diff changeset	1139
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1140 if (st == oksofar) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1141 // remember first content filtering context
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1142 if (con.get_content_filtering()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1143 if (!priv.content_context) priv.content_context = &con;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1144 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	1145 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	1146 return SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1147 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1148 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1149 // remember the non-whites
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1150 priv.need_content_filter(rcptaddr, con);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1151 priv.only_whites = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1152 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	1153 (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	1154 priv.want_dccgrey \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1155 (con.get_grey()); // want to use it for greylisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1156 priv.want_dccbulk \|= (priv.dccifd) && // have dcc interface and
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1157 (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	1158 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1159 if (st == white) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1160 priv.have_whites = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1161 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1162 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1163 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1164
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1165 sfsistat mlfi_header(SMFICTX* ctx, char* headerf, char* headerv)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1166 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1167 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1168 // detect precedence:bulk for avoiding autowhitelisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1169 if ((strcasecmp(headerf, "precedence") == 0) &&
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1170 (strcasecmp(headerv, "bulk") == 0)) priv.is_bulk_precedence = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1171 // other headers are only needed for content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1172 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1173 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1174 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	1175 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	1176 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1177 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1178
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1179 sfsistat mlfi_eoh(SMFICTX* ctx)
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1180 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1181 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1182 // delayed autowhitelisting
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1183 while (!priv.delayer.empty()) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1184 DELAYWHITEP dwp = priv.delayer.front();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1185 if (!priv.is_bulk_precedence) {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1186 const char *loto = dwp->get_loto();
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1187 WHITELISTERP w = dwp->get_w();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1188 CONTEXTP con2 = dwp->get_con();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1189 if (debug_syslog > 1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1190 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1191 char msg[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1192 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	1193 my_syslog(&priv, msg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1194 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1195 w->sent(loto); // don't free it, the whitelister takes ownership of the string
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1196 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1197 delete dwp;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1198 priv.delayer.pop_front();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1199 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1200 // content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1201 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1202 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1203 if (priv.want_spamassassin) priv.assassin->mlfi_eoh();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1204 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	1205 return SMFIS_CONTINUE;
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1206 }
97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1207
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1208 sfsistat mlfi_body(SMFICTX ctx, u_char data, size_t len)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1209 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1210 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1211 if (priv.authenticated) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1212 if (priv.only_whites) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1213 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	1214 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	1215 priv.scanner->scan(data, len);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1216 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1217 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1218
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1219 sfsistat mlfi_eom(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1220 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1221 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	1222 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	1223 const char *host = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1224 int ip;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1225 // process end of message
190 004b855c6c1f fix null pointer dereference from missing HELO command carl parents: 188 diff changeset	1226 priv.eom = true;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1227 if (priv.authenticated \|\| priv.only_whites) rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1228 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1229 // assert env_to not empty, it contains the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1230 // non-whitelisted folks that want content filtering
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1231 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	1232 bool grey = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1233 int bulk = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1234 if (priv.want_dccgrey \|\| priv.want_dccbulk) priv.dccifd->mlfi_eom(grey, bulk);
178 d6531c702be3 embedded dcc filtering carl parents: 177 diff changeset	1235
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1236 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1237 string msg;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1238 string_set alive;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1239 bool random = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1240 int limit = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1241 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	1242 const char rcpt = (i).first;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1243 CONTEXT &con = ((i).second);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1244 if (!con.acceptable_content(*priv.memory, score, bulk, msg)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1245 // bad html tags or excessive hosts or
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1246 // 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	1247 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1248 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1249 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1250 alive.insert(rcpt);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1251 random \|= con.get_host_random();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1252 limit = max(limit, con.get_host_limit());
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1253 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1254 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1255 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	1256 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	1257 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	1258 const char *found;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1259 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	1260 if (found) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1261 // uribl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1262 snprintf(buf, sizeof(buf), fmt, host, found);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1263 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1264 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1265 // dnsbl style
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1266 char adr[sizeof "255.255.255.255 "];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1267 adr[0] = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1268 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	1269 snprintf(buf, sizeof(buf), fmt, host, adr);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1270 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1271 msg = string(buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1272 rejecting = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1273 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1274 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1275 if (!rejecting) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1276 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	1277 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	1278 rc = SMFIS_TEMPFAIL;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1279 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1280 else rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1281 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1282 else if (!priv.have_whites) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1283 // can reject the entire message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1284 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	1285 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	1286 rc = SMFIS_REJECT;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1287 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1288 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1289 // 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	1290 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	1291 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	1292 smfi_delrcpt(ctx, (char*)rcpt);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1293 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1294 rc = SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1295 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1296 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1297 // reset for a new message on the same connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1298 mlfi_abort(ctx);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1299 return rc;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1300 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1301
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1302 sfsistat mlfi_abort(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1303 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1304 mlfiPriv &priv = *MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1305 priv.reset();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1306 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1307 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1308
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1309 sfsistat mlfi_close(SMFICTX *ctx)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1310 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1311 mlfiPriv *priv = MLFIPRIV;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1312 if (!priv) return SMFIS_CONTINUE;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1313 delete priv;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1314 smfi_setpriv(ctx, NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1315 return SMFIS_CONTINUE;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1316 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1317
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1318 struct smfiDesc smfilter =
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1319 {
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1320 (char*)"DNSBL", // filter name
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1321 SMFI_VERSION, // version code -- do not change
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1322 SMFIF_DELRCPT, // flags
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1323 mlfi_connect, // connection info filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1324 mlfi_helo, // SMTP HELO command filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1325 mlfi_envfrom, // envelope sender filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1326 mlfi_envrcpt, // envelope recipient filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1327 mlfi_header, // header filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1328 mlfi_eoh, // end of header
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1329 mlfi_body, // body block filter
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1330 mlfi_eom, // end of message
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1331 mlfi_abort, // message aborted
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1332 mlfi_close, // connection cleanup
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1333 };
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1334
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1335
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1336 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1337 // reload the config
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1338 //
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1339 CONFIG* new_conf();
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1340 CONFIG* new_conf() {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1341 CONFIG *newc = new CONFIG;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1342 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1343 newc->generation = generation++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1344 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1345 if (debug_syslog) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1346 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1347 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	1348 my_syslog(buf);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1349 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1350 if (load_conf(*newc, "dnsbl.conf")) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1351 newc->load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1352 return newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1353 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1354 delete newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1355 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1356 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1357
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1358
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1359 ////////////////////////////////////////////////
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1360 // thread to watch the old config files for changes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1361 // and reload when needed.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1362 // we also clear the SMTP AUTH recipient counts hourly
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1363 //
163 97d7da45fe2a spamassassin changes carl parents: 162 diff changeset	1364 extern "C" {void* config_loader(void *arg);}
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1365 void* config_loader(void *arg) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1366 int loop = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1367 while (loader_run) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1368 sleep(180); // look for modifications every 3 minutes
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1369 if (!loader_run) break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1370 loop++;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1371 if (loop == 20) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1372 // three minutes thru each loop, 20 loops per hour
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1373 // clear the recipient counts
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1374 pthread_mutex_lock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1375 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	1376 (*i).second = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1377 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1378 pthread_mutex_unlock(&rate_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1379 loop = 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1380 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1381 CONFIG &dc = *config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1382 time_t then = dc.load_time;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1383 struct stat st;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1384 bool reload = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1385 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	1386 const char fn = i;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1387 if (stat(fn, &st)) reload = true; // file disappeared
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1388 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	1389 if (reload) break;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1390 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1391 if (reload) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1392 CONFIG *newc = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1393 if (newc) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1394 // replace the global config pointer
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1395 pthread_mutex_lock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1396 CONFIG *pc = config;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1397 bool last = pc && (!pc->reference_count);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1398 config = newc;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1399 pthread_mutex_unlock(&config_mutex);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1400 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	1401 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1402 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1403 // failed to load new config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1404 my_syslog("failed to load new configuration");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1405 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	1406 // 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	1407 dc.load_time = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1408 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1409 }
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 return NULL;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1412 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1413
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1414
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1415 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	1416 void usage(const char *prog)
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1417 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1418 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	1419 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	1420 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	1421 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	1422 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	1423 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	1424 fprintf(stderr, " and should be one of\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1425 fprintf(stderr, " inet:port@ip-address\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1426 fprintf(stderr, " local:local-domain-socket-file-name\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1427 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	1428 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	1429 fprintf(stderr, " in an infinte loop.\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1430 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	1431 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	1432 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	1433 fprintf(stderr, " addresses in the argument to the -e switch\n");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1434 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1435
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1436
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1437
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1438 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	1439 void setup_socket(const char *sock) {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1440 unlink(sock);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1441 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1442
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1443
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1444 /*
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1445 * The signal handler function -- only gets called when a SIGCHLD
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1446 * is received, ie when a child terminates
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1447 */
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1448 void sig_chld(int signo)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1449 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1450 int status;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1451 /* Wait for any child without blocking */
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1452 while (waitpid(-1, &status, WNOHANG) > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1453 // 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	1454 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1455 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1456
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1457
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1458 int main(int argc, char**argv)
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1459 {
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1460 token_init();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1461 bool check = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1462 bool stress = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1463 bool setconn = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1464 bool setreso = false;
214 82886d4dd71f Fixes to compile on Fedora 9 and for const correctness. Carl Byington <carl@five-ten-sg.com> parents: 211 diff changeset	1465 const char *email = NULL;
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1466 int c;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1467 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	1468 extern char *optarg;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1469
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1470 // Process command line options
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1471 while ((c = getopt(argc, argv, args)) != -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1472 switch (c) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1473 case 'b':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1474 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1475 fprintf(stderr, "Illegal dccifd socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1476 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1477 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1478 dccifd_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1479 break;
177 a4d313c2460b start embedded dcc filtering carl parents: 174 diff changeset	1480
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1481 case 'r':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1482 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1483 fprintf(stderr, "Illegal resolver socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1484 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1485 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1486 resolver_port = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1487 setup_socket(resolver_port);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1488 setreso = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1489 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1490
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1491 case 'p':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1492 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1493 fprintf(stderr, "Illegal sendmail socket: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1494 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1495 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1496 if (smfi_setconn(optarg) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1497 fprintf(stderr, "smfi_setconn failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1498 exit(EX_SOFTWARE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1499 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1500 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	1501 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	1502 setconn = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1503 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1504
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1505 case 't':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1506 if (optarg == NULL \|\| *optarg == '\0') {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1507 fprintf(stderr, "Illegal timeout: %s\n", optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1508 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1509 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1510 if (smfi_settimeout(atoi(optarg)) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1511 fprintf(stderr, "smfi_settimeout failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1512 exit(EX_SOFTWARE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1513 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1514 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1515
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1516 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	1517 if (email) free((void*)email);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1518 email = strdup(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1519 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1520
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1521 case 'c':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1522 check = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1523 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1524
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1525 case 's':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1526 stress = true;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1527 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1528
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1529 case 'd':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1530 if (optarg == NULL \|\| *optarg == '\0') debug_syslog = 1;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1531 else debug_syslog = atoi(optarg);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1532 break;
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1533
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1534 case 'h':
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1535 default:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1536 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1537 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1538 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1539 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1540
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1541 if (check) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1542 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1543 debug_syslog = 10;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1544 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1545 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1546 conf->dump();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1547 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1548 clear_strings(); // for valgrind checking
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1549 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1550 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1551 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1552 return 1; // config failed to load
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1553 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1554 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1555
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1556 if (stress) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1557 fprintf(stdout, "stress testing\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1558 while (1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1559 for (int i=0; i<10; i++) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1560 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1561 if (conf) delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1562 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1563 fprintf(stdout, ".");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1564 fflush(stdout);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1565 sleep(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1566 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1567 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1568
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1569 if (email) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1570 char *x = strchr(email, '\|');
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1571 if (x) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1572 *x = '\0';
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1573 char *from = strdup(email);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1574 char *to = strdup(x+1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1575 use_syslog = false;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1576 CONFIG *conf = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1577 if (conf) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1578 CONTEXTP con = conf->find_context(to);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1579 char buf[maxlen];
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1580 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	1581 CONTEXTP fc = con->find_context(from);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1582 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	1583 const char *st = fc->find_from(from);
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1584 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	1585 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	1586 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	1587 delete conf;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1588 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1589 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1590 return 0;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1591 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1592
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1593 if (!setconn) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1594 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	1595 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1596 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1597 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1598
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1599 if (!setreso) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1600 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	1601 usage(argv[0]);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1602 exit(EX_USAGE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1603 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1604
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1605 if (smfi_register(smfilter) == MI_FAILURE) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1606 fprintf(stderr, "smfi_register failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1607 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1608 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1609
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1610 // switch to background mode
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1611 if (daemon(1,0) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1612 fprintf(stderr, "daemon() call failed\n");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1613 exit(EX_UNAVAILABLE);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1614 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1615
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1616 // write the pid
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1617 const char *pidpath = "/var/run/dnsbl.pid";
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1618 unlink(pidpath);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1619 FILE *f = fopen(pidpath, "w");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1620 if (f) {
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1621 #ifdef linux
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1622 // from a comment in the DCC source code:
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1623 // Linux threads are broken. Signals given the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1624 // original process are delivered to only the
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1625 // thread that happens to have that PID. The
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1626 // sendmail libmilter thread that needs to hear
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1627 // SIGINT and other signals does not, and that breaks
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1628 // scripts that need to stop milters.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1629 // However, signaling the process group works.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1630 fprintf(f, "-%d\n", (u_int)getpgrp());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1631 #else
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1632 fprintf(f, "%d\n", (u_int)getpid());
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1633 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1634 fclose(f);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1635 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1636
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1637 // initialize the thread sync objects
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1638 pthread_mutex_init(&config_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1639 pthread_mutex_init(&syslog_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1640 pthread_mutex_init(&resolve_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1641 pthread_mutex_init(&fd_pool_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1642 pthread_mutex_init(&verifier_mutex, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1643 pthread_mutex_init(&whitelister_mutex, 0);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1644
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1645 // drop root privs
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1646 struct passwd *pw = getpwnam("dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1647 if (pw) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1648 if (setgid(pw->pw_gid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1649 my_syslog("failed to switch to group dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1650 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1651 if (setuid(pw->pw_uid) == -1) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1652 my_syslog("failed to switch to user dnsbl");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1653 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1654 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1655
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1656 // load the initial config
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1657 config = new_conf();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1658 if (!config) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1659 my_syslog("failed to load initial configuration, quitting");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1660 exit(1);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1661 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1662
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1663 // fork off the resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1664 pid_t child = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1665 if (child < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1666 my_syslog("failed to create resolver listener process");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1667 exit(0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1668 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1669 if (child == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1670 // we are the child - dns resolver listener process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1671 resolver_socket = socket(AF_UNIX, SOCK_STREAM, 0);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1672 if (resolver_socket < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1673 my_syslog("child failed to create resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1674 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1675 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1676 sockaddr_un server;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1677 memset(&server, '\0', sizeof(server));
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1678 server.sun_family = AF_UNIX;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1679 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	1680 //try to bind the address to the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1681 if (bind(resolver_socket, (sockaddr *)&server, sizeof(server)) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1682 // bind failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1683 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1684 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1685 my_syslog("child failed to bind resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1686 exit(0); // failed
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 //listen on the socket.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1689 if (listen(resolver_socket, 10) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1690 // listen failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1691 shutdown(resolver_socket, SHUT_RDWR);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1692 close(resolver_socket);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1693 my_syslog("child failed to listen to resolver socket");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1694 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1695 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1696 // setup sigchld handler to prevent zombies
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1697 struct sigaction act;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1698 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	1699 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	1700 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	1701 if (sigaction(SIGCHLD, &act, NULL) < 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1702 my_syslog("child failed to setup SIGCHLD handler");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1703 exit(0); // failed
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1704 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1705 while (true) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1706 sockaddr_un client;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1707 socklen_t clientlen = sizeof(client);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1708 int s = accept(resolver_socket, (sockaddr *)&client, &clientlen);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1709 if (s > 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1710 // 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	1711 // fork off a process to handle this connection
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1712 int newchild = fork();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1713 if (newchild == 0) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1714 // this is the worker process
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1715 // child does not need the listening socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1716 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	1717 #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	1718 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	1719 _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	1720 _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	1721 #endif
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1722 process_resolver_requests(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1723 exit(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 // this is the parent
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1727 // parent does not need the accepted socket
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1728 close(s);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1729 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1730 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1731 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1732 exit(0); // make sure we don't fall thru.
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1733 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1734 else {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1735 sleep(2); // allow child to get started
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1736 }
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1737
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1738 // only create threads after the fork() in daemon
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1739 pthread_t tid;
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1740 if (pthread_create(&tid, 0, config_loader, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1741 my_syslog("failed to create config loader thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1742 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1743 my_syslog("failed to detach config loader thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	1744
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1745 if (pthread_create(&tid, 0, verify_closer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1746 my_syslog("failed to create verify closer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1747 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1748 my_syslog("failed to detach verify closer thread");
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1749
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1750 if (pthread_create(&tid, 0, whitelister_writer, 0))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1751 my_syslog("failed to create autowhite writer thread");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1752 if (pthread_detach(tid))
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1753 my_syslog("failed to detach autowhite writer thread");
153 8d7c439bb6fa add auto whitelisting carl parents: 152 diff changeset	1754
192 8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1755 time_t starting = time(NULL);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1756 int rc = smfi_main();
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1757 if ((rc != MI_SUCCESS) && (time(NULL) > starting+5*60)) {
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1758 my_syslog("trying to restart after smfi_main()");
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1759 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	1760 execvp(argv[0], argv);
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1761 }
8f4a9a37d4d9 delay autowhitelisting to avoid out of office reply bots carl parents: 191 diff changeset	1762 exit((rc == MI_SUCCESS) ? 0 : EX_UNAVAILABLE);
94 e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1763 }
e107ade3b1c0 fix dos line terminators carl parents: 92 diff changeset	1764

Mercurial > dnsbl

annotate src/dnsbl.cpp @ 225:8e1cbf3d96fc stable-6-0-20