1 /* $NetBSD: trivial-rewrite.c,v 1.1.1.3 2014/07/06 19:27:57 tron Exp $ */ 2 3 /*++ 4 /* NAME 5 /* trivial-rewrite 8 6 /* SUMMARY 7 /* Postfix address rewriting and resolving daemon 8 /* SYNOPSIS 9 /* \fBtrivial-rewrite\fR [generic Postfix daemon options] 10 /* DESCRIPTION 11 /* The \fBtrivial-rewrite\fR(8) daemon processes three types of client 12 /* service requests: 13 /* .IP "\fBrewrite \fIcontext address\fR" 14 /* Rewrite an address to standard form, according to the 15 /* address rewriting context: 16 /* .RS 17 /* .IP \fBlocal\fR 18 /* Append the domain names specified with \fB$myorigin\fR or 19 /* \fB$mydomain\fR to incomplete addresses; do \fBswap_bangpath\fR 20 /* and \fBallow_percent_hack\fR processing as described below, and 21 /* strip source routed addresses (\fI@site,@site:user@domain\fR) 22 /* to \fIuser@domain\fR form. 23 /* .IP \fBremote\fR 24 /* Append the domain name specified with 25 /* \fB$remote_header_rewrite_domain\fR to incomplete 26 /* addresses. Otherwise the result is identical to that of 27 /* the \fBlocal\fR address rewriting context. This prevents 28 /* Postfix from appending the local domain to spam from poorly 29 /* written remote clients. 30 /* .RE 31 /* .IP "\fBresolve \fIsender\fR \fIaddress\fR" 32 /* Resolve the address to a (\fItransport\fR, \fInexthop\fR, 33 /* \fIrecipient\fR, \fIflags\fR) quadruple. The meaning of 34 /* the results is as follows: 35 /* .RS 36 /* .IP \fItransport\fR 37 /* The delivery agent to use. This is the first field of an entry 38 /* in the \fBmaster.cf\fR file. 39 /* .IP \fInexthop\fR 40 /* The host to send to and optional delivery method information. 41 /* .IP \fIrecipient\fR 42 /* The envelope recipient address that is passed on to \fInexthop\fR. 43 /* .IP \fIflags\fR 44 /* The address class, whether the address requires relaying, 45 /* whether the address has problems, and whether the request failed. 46 /* .RE 47 /* .IP "\fBverify \fIsender\fR \fIaddress\fR" 48 /* Resolve the address for address verification purposes. 49 /* SERVER PROCESS MANAGEMENT 50 /* .ad 51 /* .fi 52 /* The \fBtrivial-rewrite\fR(8) servers run under control by 53 /* the Postfix master 54 /* server. Each server can handle multiple simultaneous connections. 55 /* When all servers are busy while a client connects, the master 56 /* creates a new server process, provided that the trivial-rewrite 57 /* server process limit is not exceeded. 58 /* Each trivial-rewrite server terminates after 59 /* serving at least \fB$max_use\fR clients of after \fB$max_idle\fR 60 /* seconds of idle time. 61 /* STANDARDS 62 /* .ad 63 /* .fi 64 /* None. The command does not interact with the outside world. 65 /* SECURITY 66 /* .ad 67 /* .fi 68 /* The \fBtrivial-rewrite\fR(8) daemon is not security sensitive. 69 /* By default, this daemon does not talk to remote or local users. 70 /* It can run at a fixed low privilege in a chrooted environment. 71 /* DIAGNOSTICS 72 /* Problems and transactions are logged to \fBsyslogd\fR(8). 73 /* CONFIGURATION PARAMETERS 74 /* .ad 75 /* .fi 76 /* On busy mail systems a long time may pass before a \fBmain.cf\fR 77 /* change affecting \fBtrivial-rewrite\fR(8) is picked up. Use the command 78 /* "\fBpostfix reload\fR" to speed up a change. 79 /* 80 /* The text below provides only a parameter summary. See 81 /* \fBpostconf\fR(5) for more details including examples. 82 /* COMPATIBILITY CONTROLS 83 /* .ad 84 /* .fi 85 /* .IP "\fBresolve_dequoted_address (yes)\fR" 86 /* Resolve a recipient address safely instead of correctly, by 87 /* looking inside quotes. 88 /* .PP 89 /* Available with Postfix version 2.1 and later: 90 /* .IP "\fBresolve_null_domain (no)\fR" 91 /* Resolve an address that ends in the "@" null domain as if the 92 /* local hostname were specified, instead of rejecting the address as 93 /* invalid. 94 /* .PP 95 /* Available with Postfix version 2.3 and later: 96 /* .IP "\fBresolve_numeric_domain (no)\fR" 97 /* Resolve "user@ipaddress" as "user@[ipaddress]", instead of 98 /* rejecting the address as invalid. 99 /* .PP 100 /* Available with Postfix version 2.5 and later: 101 /* .IP "\fBallow_min_user (no)\fR" 102 /* Allow a sender or recipient address to have `-' as the first 103 /* character. 104 /* ADDRESS REWRITING CONTROLS 105 /* .ad 106 /* .fi 107 /* .IP "\fBmyorigin ($myhostname)\fR" 108 /* The domain name that locally-posted mail appears to come 109 /* from, and that locally posted mail is delivered to. 110 /* .IP "\fBallow_percent_hack (yes)\fR" 111 /* Enable the rewriting of the form "user%domain" to "user@domain". 112 /* .IP "\fBappend_at_myorigin (yes)\fR" 113 /* With locally submitted mail, append the string "@$myorigin" to mail 114 /* addresses without domain information. 115 /* .IP "\fBappend_dot_mydomain (yes)\fR" 116 /* With locally submitted mail, append the string ".$mydomain" to 117 /* addresses that have no ".domain" information. 118 /* .IP "\fBrecipient_delimiter (empty)\fR" 119 /* The set of characters that can separate a user name from its 120 /* extension (example: user+foo), or a .forward file name from its 121 /* extension (example: .forward+foo). 122 /* .IP "\fBswap_bangpath (yes)\fR" 123 /* Enable the rewriting of "site!user" into "user@site". 124 /* .PP 125 /* Available in Postfix 2.2 and later: 126 /* .IP "\fBremote_header_rewrite_domain (empty)\fR" 127 /* Don't rewrite message headers from remote clients at all when 128 /* this parameter is empty; otherwise, rewrite message headers and 129 /* append the specified domain name to incomplete addresses. 130 /* ROUTING CONTROLS 131 /* .ad 132 /* .fi 133 /* The following is applicable to Postfix version 2.0 and later. 134 /* Earlier versions do not have support for: virtual_transport, 135 /* relay_transport, virtual_alias_domains, virtual_mailbox_domains 136 /* or proxy_interfaces. 137 /* .IP "\fBlocal_transport (local:$myhostname)\fR" 138 /* The default mail delivery transport and next-hop destination 139 /* for final delivery to domains listed with mydestination, and for 140 /* [ipaddress] destinations that match $inet_interfaces or $proxy_interfaces. 141 /* .IP "\fBvirtual_transport (virtual)\fR" 142 /* The default mail delivery transport and next-hop destination for 143 /* final delivery to domains listed with $virtual_mailbox_domains. 144 /* .IP "\fBrelay_transport (relay)\fR" 145 /* The default mail delivery transport and next-hop destination for 146 /* remote delivery to domains listed with $relay_domains. 147 /* .IP "\fBdefault_transport (smtp)\fR" 148 /* The default mail delivery transport and next-hop destination for 149 /* destinations that do not match $mydestination, $inet_interfaces, 150 /* $proxy_interfaces, $virtual_alias_domains, $virtual_mailbox_domains, 151 /* or $relay_domains. 152 /* .IP "\fBparent_domain_matches_subdomains (see 'postconf -d' output)\fR" 153 /* What Postfix features match subdomains of "domain.tld" automatically, 154 /* instead of requiring an explicit ".domain.tld" pattern. 155 /* .IP "\fBrelayhost (empty)\fR" 156 /* The next-hop destination of non-local mail; overrides non-local 157 /* domains in recipient addresses. 158 /* .IP "\fBtransport_maps (empty)\fR" 159 /* Optional lookup tables with mappings from recipient address to 160 /* (message delivery transport, next-hop destination). 161 /* .PP 162 /* Available in Postfix version 2.3 and later: 163 /* .IP "\fBsender_dependent_relayhost_maps (empty)\fR" 164 /* A sender-dependent override for the global relayhost parameter 165 /* setting. 166 /* .PP 167 /* Available in Postfix version 2.5 and later: 168 /* .IP "\fBempty_address_relayhost_maps_lookup_key (<>)\fR" 169 /* The sender_dependent_relayhost_maps search string that will be 170 /* used instead of the null sender address. 171 /* .PP 172 /* Available in Postfix version 2.7 and later: 173 /* .IP "\fBempty_address_default_transport_maps_lookup_key (<>)\fR" 174 /* The sender_dependent_default_transport_maps search string that 175 /* will be used instead of the null sender address. 176 /* .IP "\fBsender_dependent_default_transport_maps (empty)\fR" 177 /* A sender-dependent override for the global default_transport 178 /* parameter setting. 179 /* ADDRESS VERIFICATION CONTROLS 180 /* .ad 181 /* .fi 182 /* Postfix version 2.1 introduces sender and recipient address verification. 183 /* This feature is implemented by sending probe email messages that 184 /* are not actually delivered. 185 /* By default, address verification probes use the same route 186 /* as regular mail. To override specific aspects of message 187 /* routing for address verification probes, specify one or more 188 /* of the following: 189 /* .IP "\fBaddress_verify_local_transport ($local_transport)\fR" 190 /* Overrides the local_transport parameter setting for address 191 /* verification probes. 192 /* .IP "\fBaddress_verify_virtual_transport ($virtual_transport)\fR" 193 /* Overrides the virtual_transport parameter setting for address 194 /* verification probes. 195 /* .IP "\fBaddress_verify_relay_transport ($relay_transport)\fR" 196 /* Overrides the relay_transport parameter setting for address 197 /* verification probes. 198 /* .IP "\fBaddress_verify_default_transport ($default_transport)\fR" 199 /* Overrides the default_transport parameter setting for address 200 /* verification probes. 201 /* .IP "\fBaddress_verify_relayhost ($relayhost)\fR" 202 /* Overrides the relayhost parameter setting for address verification 203 /* probes. 204 /* .IP "\fBaddress_verify_transport_maps ($transport_maps)\fR" 205 /* Overrides the transport_maps parameter setting for address verification 206 /* probes. 207 /* .PP 208 /* Available in Postfix version 2.3 and later: 209 /* .IP "\fBaddress_verify_sender_dependent_relayhost_maps ($sender_dependent_relayhost_maps)\fR" 210 /* Overrides the sender_dependent_relayhost_maps parameter setting for address 211 /* verification probes. 212 /* .PP 213 /* Available in Postfix version 2.7 and later: 214 /* .IP "\fBaddress_verify_sender_dependent_default_transport_maps ($sender_dependent_default_transport_maps)\fR" 215 /* Overrides the sender_dependent_default_transport_maps parameter 216 /* setting for address verification probes. 217 /* MISCELLANEOUS CONTROLS 218 /* .ad 219 /* .fi 220 /* .IP "\fBconfig_directory (see 'postconf -d' output)\fR" 221 /* The default location of the Postfix main.cf and master.cf 222 /* configuration files. 223 /* .IP "\fBdaemon_timeout (18000s)\fR" 224 /* How much time a Postfix daemon process may take to handle a 225 /* request before it is terminated by a built-in watchdog timer. 226 /* .IP "\fBempty_address_recipient (MAILER-DAEMON)\fR" 227 /* The recipient of mail addressed to the null address. 228 /* .IP "\fBipc_timeout (3600s)\fR" 229 /* The time limit for sending or receiving information over an internal 230 /* communication channel. 231 /* .IP "\fBmax_idle (100s)\fR" 232 /* The maximum amount of time that an idle Postfix daemon process waits 233 /* for an incoming connection before terminating voluntarily. 234 /* .IP "\fBmax_use (100)\fR" 235 /* The maximal number of incoming connections that a Postfix daemon 236 /* process will service before terminating voluntarily. 237 /* .IP "\fBrelocated_maps (empty)\fR" 238 /* Optional lookup tables with new contact information for users or 239 /* domains that no longer exist. 240 /* .IP "\fBprocess_id (read-only)\fR" 241 /* The process ID of a Postfix command or daemon process. 242 /* .IP "\fBprocess_name (read-only)\fR" 243 /* The process name of a Postfix command or daemon process. 244 /* .IP "\fBqueue_directory (see 'postconf -d' output)\fR" 245 /* The location of the Postfix top-level queue directory. 246 /* .IP "\fBshow_user_unknown_table_name (yes)\fR" 247 /* Display the name of the recipient table in the "User unknown" 248 /* responses. 249 /* .IP "\fBsyslog_facility (mail)\fR" 250 /* The syslog facility of Postfix logging. 251 /* .IP "\fBsyslog_name (see 'postconf -d' output)\fR" 252 /* The mail system name that is prepended to the process name in syslog 253 /* records, so that "smtpd" becomes, for example, "postfix/smtpd". 254 /* .PP 255 /* Available in Postfix version 2.0 and later: 256 /* .IP "\fBhelpful_warnings (yes)\fR" 257 /* Log warnings about problematic configuration settings, and provide 258 /* helpful suggestions. 259 /* SEE ALSO 260 /* postconf(5), configuration parameters 261 /* transport(5), transport table format 262 /* relocated(5), format of the "user has moved" table 263 /* master(8), process manager 264 /* syslogd(8), system logging 265 /* README FILES 266 /* .ad 267 /* .fi 268 /* Use "\fBpostconf readme_directory\fR" or 269 /* "\fBpostconf html_directory\fR" to locate this information. 270 /* .na 271 /* .nf 272 /* ADDRESS_CLASS_README, Postfix address classes howto 273 /* ADDRESS_VERIFICATION_README, Postfix address verification 274 /* LICENSE 275 /* .ad 276 /* .fi 277 /* The Secure Mailer license must be distributed with this software. 278 /* AUTHOR(S) 279 /* Wietse Venema 280 /* IBM T.J. Watson Research 281 /* P.O. Box 704 282 /* Yorktown Heights, NY 10598, USA 283 /*--*/ 284 285 /* System library. */ 286 287 #include <sys_defs.h> 288 #include <unistd.h> 289 #include <stdlib.h> 290 #include <string.h> 291 292 /* Utility library. */ 293 294 #include <msg.h> 295 #include <vstring.h> 296 #include <vstream.h> 297 #include <vstring_vstream.h> 298 #include <split_at.h> 299 #include <stringops.h> 300 #include <dict.h> 301 #include <events.h> 302 303 /* Global library. */ 304 305 #include <mail_params.h> 306 #include <mail_version.h> 307 #include <mail_proto.h> 308 #include <resolve_local.h> 309 #include <mail_conf.h> 310 #include <resolve_clnt.h> 311 #include <rewrite_clnt.h> 312 #include <tok822.h> 313 #include <mail_addr.h> 314 315 /* Multi server skeleton. */ 316 317 #include <mail_server.h> 318 319 /* Application-specific. */ 320 321 #include <trivial-rewrite.h> 322 #include <transport.h> 323 324 static VSTRING *command; 325 326 /* 327 * Tunable parameters. 328 */ 329 char *var_transport_maps; 330 bool var_swap_bangpath; 331 bool var_append_dot_mydomain; 332 bool var_append_at_myorigin; 333 bool var_percent_hack; 334 char *var_local_transport; 335 char *var_virt_transport; 336 char *var_relay_transport; 337 int var_resolve_dequoted; 338 char *var_virt_alias_maps; /* XXX virtual_alias_domains */ 339 char *var_virt_mailbox_maps; /* XXX virtual_mailbox_domains */ 340 char *var_virt_alias_doms; 341 char *var_virt_mailbox_doms; 342 char *var_relocated_maps; 343 char *var_def_transport; 344 char *var_snd_def_xport_maps; 345 char *var_empty_addr; 346 int var_show_unk_rcpt_table; 347 int var_resolve_nulldom; 348 char *var_remote_rwr_domain; 349 char *var_snd_relay_maps; 350 char *var_null_relay_maps_key; 351 char *var_null_def_xport_maps_key; 352 int var_resolve_num_dom; 353 bool var_allow_min_user; 354 355 /* 356 * Shadow personality for address verification. 357 */ 358 char *var_vrfy_xport_maps; 359 char *var_vrfy_local_xport; 360 char *var_vrfy_virt_xport; 361 char *var_vrfy_relay_xport; 362 char *var_vrfy_def_xport; 363 char *var_vrfy_snd_def_xport_maps; 364 char *var_vrfy_relayhost; 365 char *var_vrfy_relay_maps; 366 367 /* 368 * Different resolver personalities depending on the kind of request. 369 */ 370 RES_CONTEXT resolve_regular = { 371 VAR_LOCAL_TRANSPORT, &var_local_transport, 372 VAR_VIRT_TRANSPORT, &var_virt_transport, 373 VAR_RELAY_TRANSPORT, &var_relay_transport, 374 VAR_DEF_TRANSPORT, &var_def_transport, 375 VAR_SND_DEF_XPORT_MAPS, &var_snd_def_xport_maps, 0, 376 VAR_RELAYHOST, &var_relayhost, 377 VAR_SND_RELAY_MAPS, &var_snd_relay_maps, 0, 378 VAR_TRANSPORT_MAPS, &var_transport_maps, 0 379 }; 380 381 RES_CONTEXT resolve_verify = { 382 VAR_VRFY_LOCAL_XPORT, &var_vrfy_local_xport, 383 VAR_VRFY_VIRT_XPORT, &var_vrfy_virt_xport, 384 VAR_VRFY_RELAY_XPORT, &var_vrfy_relay_xport, 385 VAR_VRFY_DEF_XPORT, &var_vrfy_def_xport, 386 VAR_VRFY_SND_DEF_XPORT_MAPS, &var_vrfy_snd_def_xport_maps, 0, 387 VAR_VRFY_RELAYHOST, &var_vrfy_relayhost, 388 VAR_VRFY_RELAY_MAPS, &var_vrfy_relay_maps, 0, 389 VAR_VRFY_XPORT_MAPS, &var_vrfy_xport_maps, 0 390 }; 391 392 /* 393 * Connection management. When file-based lookup tables change we should 394 * restart at our convenience, but avoid client read errors. We restart 395 * rather than reopen, because the process may be chrooted (and if it isn't 396 * we still need code that handles the chrooted case anyway). 397 * 398 * Three variants are implemented. Only one should be used. 399 * 400 * ifdef DETACH_AND_ASK_CLIENTS_TO_RECONNECT 401 * 402 * This code detaches the trivial-rewrite process from the master, stops 403 * accepting new clients, and handles established clients in the background, 404 * asking them to reconnect the next time they send a request. The master 405 * creates a new process that accepts connections. This is reasonably safe 406 * because the number of trivial-rewrite server processes is small compared 407 * to the number of trivial-rewrite client processes. The few extra 408 * background processes should not make a difference in Postfix's footprint. 409 * However, once a daemon detaches from the master, its exit status will be 410 * lost, and abnormal termination may remain undetected. Timely restart is 411 * achieved by checking the table changed status every 10 seconds or so 412 * before responding to a client request. 413 * 414 * ifdef CHECK_TABLE_STATS_PERIODICALLY 415 * 416 * This code runs every 10 seconds and terminates the process when lookup 417 * tables have changed. This is subject to race conditions when established 418 * clients send a request while the server exits; those clients may read EOF 419 * instead of a server reply. If the experience with the oldest option 420 * (below) is anything to go by, however, then this is unlikely to be a 421 * problem during real deployment. 422 * 423 * ifdef CHECK_TABLE_STATS_BEFORE_ACCEPT 424 * 425 * This is the old code. It checks the table changed status when a new client 426 * connects (i.e. before the server calls accept()), and terminates 427 * immediately. This is invisible for the connecting client, but is subject 428 * to race conditions when established clients send a request while the 429 * server exits; those clients may read EOF instead of a server reply. This 430 * has, however, not been a problem in real deployment. With the old code, 431 * timely restart is achieved by setting the ipc_ttl parameter to 60 432 * seconds, so that the table change status is checked several times a 433 * minute. 434 */ 435 int server_flags; 436 437 /* 438 * Define exactly one of these. 439 */ 440 /* #define DETACH_AND_ASK_CLIENTS_TO_RECONNECT /* correct and complex */ 441 #define CHECK_TABLE_STATS_PERIODICALLY /* quick */ 442 /* #define CHECK_TABLE_STATS_BEFORE_ACCEPT /* slow */ 443 444 /* rewrite_service - read request and send reply */ 445 446 static void rewrite_service(VSTREAM *stream, char *unused_service, char **argv) 447 { 448 int status = -1; 449 450 #ifdef DETACH_AND_ASK_CLIENTS_TO_RECONNECT 451 static time_t last; 452 time_t now; 453 const char *table; 454 455 #endif 456 457 /* 458 * Sanity check. This service takes no command-line arguments. 459 */ 460 if (argv[0]) 461 msg_fatal("unexpected command-line argument: %s", argv[0]); 462 463 /* 464 * Client connections are long-lived. Be sure to refesh timely. 465 */ 466 #ifdef DETACH_AND_ASK_CLIENTS_TO_RECONNECT 467 if (server_flags == 0 && (now = event_time()) - last > 10) { 468 if ((table = dict_changed_name()) != 0) { 469 msg_info("table %s has changed -- restarting", table); 470 if (multi_server_drain() == 0) 471 server_flags = 1; 472 } 473 last = now; 474 } 475 #endif 476 477 /* 478 * This routine runs whenever a client connects to the UNIX-domain socket 479 * dedicated to address rewriting. All connection-management stuff is 480 * handled by the common code in multi_server.c. 481 */ 482 if (attr_scan(stream, ATTR_FLAG_STRICT | ATTR_FLAG_MORE, 483 ATTR_TYPE_STR, MAIL_ATTR_REQ, command, 484 ATTR_TYPE_END) == 1) { 485 if (strcmp(vstring_str(command), REWRITE_ADDR) == 0) { 486 status = rewrite_proto(stream); 487 } else if (strcmp(vstring_str(command), RESOLVE_REGULAR) == 0) { 488 status = resolve_proto(&resolve_regular, stream); 489 } else if (strcmp(vstring_str(command), RESOLVE_VERIFY) == 0) { 490 status = resolve_proto(&resolve_verify, stream); 491 } else { 492 msg_warn("bad command %.30s", printable(vstring_str(command), '?')); 493 } 494 } 495 if (status < 0) 496 multi_server_disconnect(stream); 497 } 498 499 /* pre_accept - see if tables have changed */ 500 501 #ifdef CHECK_TABLE_STATS_BEFORE_ACCEPT 502 503 static void pre_accept(char *unused_name, char **unused_argv) 504 { 505 const char *table; 506 507 if ((table = dict_changed_name()) != 0) { 508 msg_info("table %s has changed -- restarting", table); 509 exit(0); 510 } 511 } 512 513 #endif 514 515 static void check_table_stats(int unused_event, char *unused_context) 516 { 517 const char *table; 518 519 if ((table = dict_changed_name()) != 0) { 520 msg_info("table %s has changed -- restarting", table); 521 exit(0); 522 } 523 event_request_timer(check_table_stats, (char *) 0, 10); 524 } 525 526 /* pre_jail_init - initialize before entering chroot jail */ 527 528 static void pre_jail_init(char *unused_name, char **unused_argv) 529 { 530 command = vstring_alloc(100); 531 rewrite_init(); 532 resolve_init(); 533 if (*RES_PARAM_VALUE(resolve_regular.transport_maps)) 534 resolve_regular.transport_info = 535 transport_pre_init(resolve_regular.transport_maps_name, 536 RES_PARAM_VALUE(resolve_regular.transport_maps)); 537 if (*RES_PARAM_VALUE(resolve_verify.transport_maps)) 538 resolve_verify.transport_info = 539 transport_pre_init(resolve_verify.transport_maps_name, 540 RES_PARAM_VALUE(resolve_verify.transport_maps)); 541 if (*RES_PARAM_VALUE(resolve_regular.snd_relay_maps)) 542 resolve_regular.snd_relay_info = 543 maps_create(resolve_regular.snd_relay_maps_name, 544 RES_PARAM_VALUE(resolve_regular.snd_relay_maps), 545 DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX 546 | DICT_FLAG_NO_REGSUB); 547 if (*RES_PARAM_VALUE(resolve_verify.snd_relay_maps)) 548 resolve_verify.snd_relay_info = 549 maps_create(resolve_verify.snd_relay_maps_name, 550 RES_PARAM_VALUE(resolve_verify.snd_relay_maps), 551 DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX 552 | DICT_FLAG_NO_REGSUB); 553 if (*RES_PARAM_VALUE(resolve_regular.snd_def_xp_maps)) 554 resolve_regular.snd_def_xp_info = 555 maps_create(resolve_regular.snd_def_xp_maps_name, 556 RES_PARAM_VALUE(resolve_regular.snd_def_xp_maps), 557 DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX 558 | DICT_FLAG_NO_REGSUB); 559 if (*RES_PARAM_VALUE(resolve_verify.snd_def_xp_maps)) 560 resolve_verify.snd_def_xp_info = 561 maps_create(resolve_verify.snd_def_xp_maps_name, 562 RES_PARAM_VALUE(resolve_verify.snd_def_xp_maps), 563 DICT_FLAG_LOCK | DICT_FLAG_FOLD_FIX 564 | DICT_FLAG_NO_REGSUB); 565 } 566 567 /* post_jail_init - initialize after entering chroot jail */ 568 569 static void post_jail_init(char *unused_name, char **unused_argv) 570 { 571 if (resolve_regular.transport_info) 572 transport_post_init(resolve_regular.transport_info); 573 if (resolve_verify.transport_info) 574 transport_post_init(resolve_verify.transport_info); 575 check_table_stats(0, (char *) 0); 576 } 577 578 MAIL_VERSION_STAMP_DECLARE; 579 580 /* main - pass control to the multi-threaded skeleton code */ 581 582 int main(int argc, char **argv) 583 { 584 static const CONFIG_STR_TABLE str_table[] = { 585 VAR_TRANSPORT_MAPS, DEF_TRANSPORT_MAPS, &var_transport_maps, 0, 0, 586 VAR_LOCAL_TRANSPORT, DEF_LOCAL_TRANSPORT, &var_local_transport, 1, 0, 587 VAR_VIRT_TRANSPORT, DEF_VIRT_TRANSPORT, &var_virt_transport, 1, 0, 588 VAR_RELAY_TRANSPORT, DEF_RELAY_TRANSPORT, &var_relay_transport, 1, 0, 589 VAR_DEF_TRANSPORT, DEF_DEF_TRANSPORT, &var_def_transport, 1, 0, 590 VAR_VIRT_ALIAS_MAPS, DEF_VIRT_ALIAS_MAPS, &var_virt_alias_maps, 0, 0, 591 VAR_VIRT_ALIAS_DOMS, DEF_VIRT_ALIAS_DOMS, &var_virt_alias_doms, 0, 0, 592 VAR_VIRT_MAILBOX_MAPS, DEF_VIRT_MAILBOX_MAPS, &var_virt_mailbox_maps, 0, 0, 593 VAR_VIRT_MAILBOX_DOMS, DEF_VIRT_MAILBOX_DOMS, &var_virt_mailbox_doms, 0, 0, 594 VAR_RELOCATED_MAPS, DEF_RELOCATED_MAPS, &var_relocated_maps, 0, 0, 595 VAR_EMPTY_ADDR, DEF_EMPTY_ADDR, &var_empty_addr, 1, 0, 596 VAR_VRFY_XPORT_MAPS, DEF_VRFY_XPORT_MAPS, &var_vrfy_xport_maps, 0, 0, 597 VAR_VRFY_LOCAL_XPORT, DEF_VRFY_LOCAL_XPORT, &var_vrfy_local_xport, 1, 0, 598 VAR_VRFY_VIRT_XPORT, DEF_VRFY_VIRT_XPORT, &var_vrfy_virt_xport, 1, 0, 599 VAR_VRFY_RELAY_XPORT, DEF_VRFY_RELAY_XPORT, &var_vrfy_relay_xport, 1, 0, 600 VAR_VRFY_DEF_XPORT, DEF_VRFY_DEF_XPORT, &var_vrfy_def_xport, 1, 0, 601 VAR_VRFY_RELAYHOST, DEF_VRFY_RELAYHOST, &var_vrfy_relayhost, 0, 0, 602 VAR_REM_RWR_DOMAIN, DEF_REM_RWR_DOMAIN, &var_remote_rwr_domain, 0, 0, 603 VAR_SND_RELAY_MAPS, DEF_SND_RELAY_MAPS, &var_snd_relay_maps, 0, 0, 604 VAR_NULL_RELAY_MAPS_KEY, DEF_NULL_RELAY_MAPS_KEY, &var_null_relay_maps_key, 1, 0, 605 VAR_VRFY_RELAY_MAPS, DEF_VRFY_RELAY_MAPS, &var_vrfy_relay_maps, 0, 0, 606 VAR_SND_DEF_XPORT_MAPS, DEF_SND_DEF_XPORT_MAPS, &var_snd_def_xport_maps, 0, 0, 607 VAR_NULL_DEF_XPORT_MAPS_KEY, DEF_NULL_DEF_XPORT_MAPS_KEY, &var_null_def_xport_maps_key, 1, 0, 608 VAR_VRFY_SND_DEF_XPORT_MAPS, DEF_VRFY_SND_DEF_XPORT_MAPS, &var_vrfy_snd_def_xport_maps, 0, 0, 609 0, 610 }; 611 static const CONFIG_BOOL_TABLE bool_table[] = { 612 VAR_SWAP_BANGPATH, DEF_SWAP_BANGPATH, &var_swap_bangpath, 613 VAR_APP_DOT_MYDOMAIN, DEF_APP_DOT_MYDOMAIN, &var_append_dot_mydomain, 614 VAR_APP_AT_MYORIGIN, DEF_APP_AT_MYORIGIN, &var_append_at_myorigin, 615 VAR_PERCENT_HACK, DEF_PERCENT_HACK, &var_percent_hack, 616 VAR_RESOLVE_DEQUOTED, DEF_RESOLVE_DEQUOTED, &var_resolve_dequoted, 617 VAR_SHOW_UNK_RCPT_TABLE, DEF_SHOW_UNK_RCPT_TABLE, &var_show_unk_rcpt_table, 618 VAR_RESOLVE_NULLDOM, DEF_RESOLVE_NULLDOM, &var_resolve_nulldom, 619 VAR_RESOLVE_NUM_DOM, DEF_RESOLVE_NUM_DOM, &var_resolve_num_dom, 620 VAR_ALLOW_MIN_USER, DEF_ALLOW_MIN_USER, &var_allow_min_user, 621 0, 622 }; 623 624 /* 625 * Fingerprint executables and core dumps. 626 */ 627 MAIL_VERSION_STAMP_ALLOCATE; 628 629 multi_server_main(argc, argv, rewrite_service, 630 MAIL_SERVER_STR_TABLE, str_table, 631 MAIL_SERVER_BOOL_TABLE, bool_table, 632 MAIL_SERVER_PRE_INIT, pre_jail_init, 633 MAIL_SERVER_POST_INIT, post_jail_init, 634 #ifdef CHECK_TABLE_STATS_BEFORE_ACCEPT 635 MAIL_SERVER_PRE_ACCEPT, pre_accept, 636 #endif 637 0); 638 } 639