1 /* $NetBSD: mail_params.c,v 1.1.1.2 2010/04/17 10:24:32 tron Exp $ */ 2 3 /*++ 4 /* NAME 5 /* mail_params 3 6 /* SUMMARY 7 /* global mail configuration parameters 8 /* SYNOPSIS 9 /* #include <mail_params.h> 10 /* 11 /* char *var_myhostname; 12 /* char *var_mydomain; 13 /* char *var_myorigin; 14 /* char *var_mydest; 15 /* char *var_relayhost; 16 /* char *var_transit_origin; 17 /* char *var_transit_dest; 18 /* char *var_mail_name; 19 /* int var_helpful_warnings; 20 /* char *var_syslog_name; 21 /* char *var_mail_owner; 22 /* uid_t var_owner_uid; 23 /* gid_t var_owner_gid; 24 /* char *var_sgid_group; 25 /* gid_t var_sgid_gid; 26 /* char *var_default_privs; 27 /* uid_t var_default_uid; 28 /* gid_t var_default_gid; 29 /* char *var_config_dir; 30 /* char *var_daemon_dir; 31 /* char *var_data_dir; 32 /* char *var_command_dir; 33 /* char *var_queue_dir; 34 /* int var_use_limit; 35 /* int var_idle_limit; 36 /* int var_event_drain; 37 /* int var_bundle_rcpt; 38 /* char *var_procname; 39 /* int var_pid; 40 /* int var_ipc_timeout; 41 /* char *var_pid_dir; 42 /* int var_dont_remove; 43 /* char *var_inet_interfaces; 44 /* char *var_proxy_interfaces; 45 /* char *var_inet_protocols; 46 /* char *var_mynetworks; 47 /* char *var_double_bounce_sender; 48 /* int var_line_limit; 49 /* char *var_alias_db_map; 50 /* int var_message_limit; 51 /* char *var_mail_release; 52 /* char *var_mail_version; 53 /* int var_ipc_idle_limit; 54 /* int var_ipc_ttl_limit; 55 /* char *var_db_type; 56 /* char *var_hash_queue_names; 57 /* int var_hash_queue_depth; 58 /* int var_trigger_timeout; 59 /* char *var_rcpt_delim; 60 /* int var_fork_tries; 61 /* int var_fork_delay; 62 /* int var_flock_tries; 63 /* int var_flock_delay; 64 /* int var_flock_stale; 65 /* int var_disable_dns; 66 /* int var_soft_bounce; 67 /* time_t var_starttime; 68 /* int var_ownreq_special; 69 /* int var_daemon_timeout; 70 /* char *var_syslog_facility; 71 /* char *var_relay_domains; 72 /* char *var_fflush_domains; 73 /* char *var_mynetworks_style; 74 /* char *var_verp_delims; 75 /* char *var_verp_filter; 76 /* char *var_par_dom_match; 77 /* char *var_config_dirs; 78 /* 79 /* int var_inet_windowsize; 80 /* char *var_import_environ; 81 /* char *var_export_environ; 82 /* char *var_debug_peer_list; 83 /* int var_debug_peer_level; 84 /* int var_in_flow_delay; 85 /* int var_fault_inj_code; 86 /* char *var_bounce_service; 87 /* char *var_cleanup_service; 88 /* char *var_defer_service; 89 /* char *var_pickup_service; 90 /* char *var_queue_service; 91 /* char *var_rewrite_service; 92 /* char *var_showq_service; 93 /* char *var_error_service; 94 /* char *var_flush_service; 95 /* char *var_verify_service; 96 /* char *var_trace_service; 97 /* char *var_proxymap_service; 98 /* char *var_proxywrite_service; 99 /* int var_db_create_buf; 100 /* int var_db_read_buf; 101 /* int var_mime_maxdepth; 102 /* int var_mime_bound_len; 103 /* int var_header_limit; 104 /* int var_token_limit; 105 /* int var_disable_mime_input; 106 /* int var_disable_mime_oconv; 107 /* int var_strict_8bitmime; 108 /* int var_strict_7bit_hdrs; 109 /* int var_strict_8bit_body; 110 /* int var_strict_encoding; 111 /* int var_verify_neg_cache; 112 /* int var_oldlog_compat; 113 /* int var_delay_max_res; 114 /* char *var_int_filt_classes; 115 /* int var_cyrus_sasl_authzid; 116 /* 117 /* char *var_multi_conf_dirs; 118 /* char *var_multi_wrapper; 119 /* char *var_multi_group; 120 /* char *var_multi_name; 121 /* bool var_multi_enable; 122 /* 123 /* void mail_params_init() 124 /* 125 /* const char null_format_string[1]; 126 /* DESCRIPTION 127 /* This module (actually the associated include file) define the names 128 /* and defaults of all mail configuration parameters. 129 /* 130 /* mail_params_init() initializes the built-in parameters listed above. 131 /* These parameters are relied upon by library routines, so they are 132 /* initialized globally so as to avoid hard-to-find errors due to 133 /* missing initialization. This routine must be called early, at 134 /* least before entering a chroot jail. 135 /* 136 /* null_format_string is a workaround for gcc compilers that complain 137 /* about empty or null format strings. 138 /* DIAGNOSTICS 139 /* Fatal errors: out of memory; null system or domain name. 140 /* LICENSE 141 /* .ad 142 /* .fi 143 /* The Secure Mailer license must be distributed with this software. 144 /* AUTHOR(S) 145 /* Wietse Venema 146 /* IBM T.J. Watson Research 147 /* P.O. Box 704 148 /* Yorktown Heights, NY 10598, USA 149 /*--*/ 150 151 /* System library. */ 152 153 #include <sys_defs.h> 154 #include <unistd.h> 155 #include <stdlib.h> 156 #include <string.h> 157 #include <pwd.h> 158 #include <grp.h> 159 #include <time.h> 160 #include <ctype.h> 161 162 #ifdef STRCASECMP_IN_STRINGS_H 163 #include <strings.h> 164 #endif 165 166 /* Utility library. */ 167 168 #include <msg.h> 169 #include <msg_syslog.h> 170 #include <get_hostname.h> 171 #include <valid_hostname.h> 172 #include <stringops.h> 173 #include <safe.h> 174 #include <safe_open.h> 175 #include <mymalloc.h> 176 #ifdef HAS_DB 177 #include <dict_db.h> 178 #endif 179 #include <inet_proto.h> 180 #include <vstring_vstream.h> 181 #include <iostuff.h> 182 183 /* Global library. */ 184 185 #include <mynetworks.h> 186 #include <mail_conf.h> 187 #include <mail_version.h> 188 #include <mail_proto.h> 189 #include <verp_sender.h> 190 #include <own_inet_addr.h> 191 #include <mail_params.h> 192 193 /* 194 * Special configuration variables. 195 */ 196 char *var_myhostname; 197 char *var_mydomain; 198 char *var_myorigin; 199 char *var_mydest; 200 char *var_relayhost; 201 char *var_transit_origin; 202 char *var_transit_dest; 203 char *var_mail_name; 204 int var_helpful_warnings; 205 char *var_syslog_name; 206 char *var_mail_owner; 207 uid_t var_owner_uid; 208 gid_t var_owner_gid; 209 char *var_sgid_group; 210 gid_t var_sgid_gid; 211 char *var_default_privs; 212 uid_t var_default_uid; 213 gid_t var_default_gid; 214 char *var_config_dir; 215 char *var_daemon_dir; 216 char *var_data_dir; 217 char *var_command_dir; 218 char *var_queue_dir; 219 int var_use_limit; 220 int var_event_drain; 221 int var_idle_limit; 222 int var_bundle_rcpt; 223 char *var_procname; 224 int var_pid; 225 int var_ipc_timeout; 226 char *var_pid_dir; 227 int var_dont_remove; 228 char *var_inet_interfaces; 229 char *var_proxy_interfaces; 230 char *var_inet_protocols; 231 char *var_mynetworks; 232 char *var_double_bounce_sender; 233 int var_line_limit; 234 char *var_alias_db_map; 235 int var_message_limit; 236 char *var_mail_release; 237 char *var_mail_version; 238 int var_ipc_idle_limit; 239 int var_ipc_ttl_limit; 240 char *var_db_type; 241 char *var_hash_queue_names; 242 int var_hash_queue_depth; 243 int var_trigger_timeout; 244 char *var_rcpt_delim; 245 int var_fork_tries; 246 int var_fork_delay; 247 int var_flock_tries; 248 int var_flock_delay; 249 int var_flock_stale; 250 int var_disable_dns; 251 int var_soft_bounce; 252 time_t var_starttime; 253 int var_ownreq_special; 254 int var_daemon_timeout; 255 char *var_syslog_facility; 256 char *var_relay_domains; 257 char *var_fflush_domains; 258 char *var_mynetworks_style; 259 char *var_verp_delims; 260 char *var_verp_filter; 261 int var_in_flow_delay; 262 char *var_par_dom_match; 263 char *var_config_dirs; 264 265 int var_inet_windowsize; 266 char *var_import_environ; 267 char *var_export_environ; 268 char *var_debug_peer_list; 269 int var_debug_peer_level; 270 int var_fault_inj_code; 271 char *var_bounce_service; 272 char *var_cleanup_service; 273 char *var_defer_service; 274 char *var_pickup_service; 275 char *var_queue_service; 276 char *var_rewrite_service; 277 char *var_showq_service; 278 char *var_error_service; 279 char *var_flush_service; 280 char *var_verify_service; 281 char *var_trace_service; 282 char *var_proxymap_service; 283 char *var_proxywrite_service; 284 int var_db_create_buf; 285 int var_db_read_buf; 286 int var_mime_maxdepth; 287 int var_mime_bound_len; 288 int var_header_limit; 289 int var_token_limit; 290 int var_disable_mime_input; 291 int var_disable_mime_oconv; 292 int var_strict_8bitmime; 293 int var_strict_7bit_hdrs; 294 int var_strict_8bit_body; 295 int var_strict_encoding; 296 int var_verify_neg_cache; 297 int var_oldlog_compat; 298 int var_delay_max_res; 299 char *var_int_filt_classes; 300 int var_cyrus_sasl_authzid; 301 302 char *var_multi_conf_dirs; 303 char *var_multi_wrapper; 304 char *var_multi_group; 305 char *var_multi_name; 306 bool var_multi_enable; 307 308 const char null_format_string[1] = ""; 309 310 /* check_myhostname - lookup hostname and validate */ 311 312 static const char *check_myhostname(void) 313 { 314 static const char *name; 315 const char *dot; 316 const char *domain; 317 318 /* 319 * Use cached result. 320 */ 321 if (name) 322 return (name); 323 324 /* 325 * If the local machine name is not in FQDN form, try to append the 326 * contents of $mydomain. Use a default domain as a final workaround. 327 */ 328 name = get_hostname(); 329 if ((dot = strchr(name, '.')) == 0) { 330 if ((domain = mail_conf_lookup_eval(VAR_MYDOMAIN)) == 0) 331 domain = DEF_MYDOMAIN; 332 name = concatenate(name, ".", domain, (char *) 0); 333 } 334 return (name); 335 } 336 337 /* check_mydomainname - lookup domain name and validate */ 338 339 static const char *check_mydomainname(void) 340 { 341 char *dot; 342 343 /* 344 * Use a default domain when the hostname is not a FQDN ("foo"). 345 */ 346 if ((dot = strchr(var_myhostname, '.')) == 0) 347 return (DEF_MYDOMAIN); 348 return (dot + 1); 349 } 350 351 /* check_default_privs - lookup default user attributes and validate */ 352 353 static void check_default_privs(void) 354 { 355 struct passwd *pwd; 356 357 if ((pwd = getpwnam(var_default_privs)) == 0) 358 msg_fatal("file %s/%s: parameter %s: unknown user name value: %s", 359 var_config_dir, MAIN_CONF_FILE, 360 VAR_DEFAULT_PRIVS, var_default_privs); 361 if ((var_default_uid = pwd->pw_uid) == 0) 362 msg_fatal("file %s/%s: parameter %s: user %s has privileged user ID", 363 var_config_dir, MAIN_CONF_FILE, 364 VAR_DEFAULT_PRIVS, var_default_privs); 365 if ((var_default_gid = pwd->pw_gid) == 0) 366 msg_fatal("file %s/%s: parameter %s: user %s has privileged group ID", 367 var_config_dir, MAIN_CONF_FILE, 368 VAR_DEFAULT_PRIVS, var_default_privs); 369 } 370 371 /* check_mail_owner - lookup owner user attributes and validate */ 372 373 static void check_mail_owner(void) 374 { 375 struct passwd *pwd; 376 377 if ((pwd = getpwnam(var_mail_owner)) == 0) 378 msg_fatal("file %s/%s: parameter %s: unknown user name value: %s", 379 var_config_dir, MAIN_CONF_FILE, 380 VAR_MAIL_OWNER, var_mail_owner); 381 if ((var_owner_uid = pwd->pw_uid) == 0) 382 msg_fatal("file %s/%s: parameter %s: user %s has privileged user ID", 383 var_config_dir, MAIN_CONF_FILE, 384 VAR_MAIL_OWNER, var_mail_owner); 385 if ((var_owner_gid = pwd->pw_gid) == 0) 386 msg_fatal("file %s/%s: parameter %s: user %s has privileged group ID", 387 var_config_dir, MAIN_CONF_FILE, 388 VAR_MAIL_OWNER, var_mail_owner); 389 390 /* 391 * This detects only some forms of sharing. Enumerating the entire 392 * password file name space could be expensive. The purpose of this code 393 * is to discourage user ID sharing by developers and package 394 * maintainers. 395 */ 396 if ((pwd = getpwuid(var_owner_uid)) != 0 397 && strcmp(pwd->pw_name, var_mail_owner) != 0) 398 msg_fatal("file %s/%s: parameter %s: user %s has same user ID as %s", 399 var_config_dir, MAIN_CONF_FILE, 400 VAR_MAIL_OWNER, var_mail_owner, pwd->pw_name); 401 } 402 403 /* check_sgid_group - lookup setgid group attributes and validate */ 404 405 static void check_sgid_group(void) 406 { 407 struct group *grp; 408 409 if ((grp = getgrnam(var_sgid_group)) == 0) 410 msg_fatal("file %s/%s: parameter %s: unknown group name: %s", 411 var_config_dir, MAIN_CONF_FILE, 412 VAR_SGID_GROUP, var_sgid_group); 413 if ((var_sgid_gid = grp->gr_gid) == 0) 414 msg_fatal("file %s/%s: parameter %s: group %s has privileged group ID", 415 var_config_dir, MAIN_CONF_FILE, 416 VAR_SGID_GROUP, var_sgid_group); 417 418 /* 419 * This detects only some forms of sharing. Enumerating the entire group 420 * file name space could be expensive. The purpose of this code is to 421 * discourage group ID sharing by developers and package maintainers. 422 */ 423 if ((grp = getgrgid(var_sgid_gid)) != 0 424 && strcmp(grp->gr_name, var_sgid_group) != 0) 425 msg_fatal("file %s/%s: parameter %s: group %s has same group ID as %s", 426 var_config_dir, MAIN_CONF_FILE, 427 VAR_SGID_GROUP, var_sgid_group, grp->gr_name); 428 } 429 430 /* check_overlap - disallow UID or GID sharing */ 431 432 static void check_overlap(void) 433 { 434 if (strcmp(var_default_privs, var_mail_owner) == 0) 435 msg_fatal("file %s/%s: parameters %s and %s specify the same user %s", 436 var_config_dir, MAIN_CONF_FILE, 437 VAR_DEFAULT_PRIVS, VAR_MAIL_OWNER, 438 var_default_privs); 439 if (var_default_uid == var_owner_uid) 440 msg_fatal("file %s/%s: parameters %s and %s: users %s and %s have the same user ID: %ld", 441 var_config_dir, MAIN_CONF_FILE, 442 VAR_DEFAULT_PRIVS, VAR_MAIL_OWNER, 443 var_default_privs, var_mail_owner, 444 (long) var_owner_uid); 445 if (var_default_gid == var_owner_gid) 446 msg_fatal("file %s/%s: parameters %s and %s: users %s and %s have the same group ID: %ld", 447 var_config_dir, MAIN_CONF_FILE, 448 VAR_DEFAULT_PRIVS, VAR_MAIL_OWNER, 449 var_default_privs, var_mail_owner, 450 (long) var_owner_gid); 451 if (var_default_gid == var_sgid_gid) 452 msg_fatal("file %s/%s: parameters %s and %s: user %s and group %s have the same group ID: %ld", 453 var_config_dir, MAIN_CONF_FILE, 454 VAR_DEFAULT_PRIVS, VAR_SGID_GROUP, 455 var_default_privs, var_sgid_group, 456 (long) var_sgid_gid); 457 if (var_owner_gid == var_sgid_gid) 458 msg_fatal("file %s/%s: parameters %s and %s: user %s and group %s have the same group ID: %ld", 459 var_config_dir, MAIN_CONF_FILE, 460 VAR_MAIL_OWNER, VAR_SGID_GROUP, 461 var_mail_owner, var_sgid_group, 462 (long) var_sgid_gid); 463 } 464 465 #ifdef MYORIGIN_FROM_FILE 466 467 /* read_param_from_file - read parameter value from file */ 468 469 static char *read_param_from_file(const char *path) 470 { 471 VSTRING *why = vstring_alloc(100); 472 VSTRING *buf = vstring_alloc(100); 473 VSTREAM *fp; 474 char *bp; 475 char *result; 476 477 /* 478 * Ugly macros to make complex expressions less unreadable. 479 */ 480 #define SKIP(start, var, cond) \ 481 for (var = start; *var && (cond); var++); 482 483 #define TRIM(s) { \ 484 char *p; \ 485 for (p = (s) + strlen(s); p > (s) && ISSPACE(p[-1]); p--); \ 486 *p = 0; \ 487 } 488 489 fp = safe_open(path, O_RDONLY, 0, (struct stat *) 0, -1, -1, why); 490 if (fp == 0) 491 msg_fatal("%s: %s", path, vstring_str(why)); 492 vstring_get_nonl(buf, fp); 493 if (vstream_ferror(fp)) /* FIX 20070501 */ 494 msg_fatal("%s: read error: %m", path); 495 vstream_fclose(fp); 496 SKIP(vstring_str(buf), bp, ISSPACE(*bp)); 497 TRIM(bp); 498 result = mystrdup(bp); 499 500 vstring_free(why); 501 vstring_free(buf); 502 return (result); 503 } 504 505 #endif 506 507 /* mail_params_init - configure built-in parameters */ 508 509 void mail_params_init() 510 { 511 static const CONFIG_STR_TABLE first_str_defaults[] = { 512 VAR_SYSLOG_FACILITY, DEF_SYSLOG_FACILITY, &var_syslog_facility, 1, 0, 513 VAR_INET_PROTOCOLS, DEF_INET_PROTOCOLS, &var_inet_protocols, 1, 0, 514 VAR_MULTI_CONF_DIRS, DEF_MULTI_CONF_DIRS, &var_multi_conf_dirs, 0, 0, 515 /* multi_instance_wrapper may have dependencies but not dependents. */ 516 VAR_MULTI_GROUP, DEF_MULTI_GROUP, &var_multi_group, 0, 0, 517 VAR_MULTI_NAME, DEF_MULTI_NAME, &var_multi_name, 0, 0, 518 0, 519 }; 520 static const CONFIG_STR_FN_TABLE function_str_defaults[] = { 521 VAR_MYHOSTNAME, check_myhostname, &var_myhostname, 1, 0, 522 VAR_MYDOMAIN, check_mydomainname, &var_mydomain, 1, 0, 523 0, 524 }; 525 static const CONFIG_STR_TABLE other_str_defaults[] = { 526 VAR_MAIL_NAME, DEF_MAIL_NAME, &var_mail_name, 1, 0, 527 VAR_SYSLOG_NAME, DEF_SYSLOG_NAME, &var_syslog_name, 1, 0, 528 VAR_MAIL_OWNER, DEF_MAIL_OWNER, &var_mail_owner, 1, 0, 529 VAR_SGID_GROUP, DEF_SGID_GROUP, &var_sgid_group, 1, 0, 530 VAR_MYDEST, DEF_MYDEST, &var_mydest, 0, 0, 531 VAR_MYORIGIN, DEF_MYORIGIN, &var_myorigin, 1, 0, 532 VAR_RELAYHOST, DEF_RELAYHOST, &var_relayhost, 0, 0, 533 VAR_DAEMON_DIR, DEF_DAEMON_DIR, &var_daemon_dir, 1, 0, 534 VAR_DATA_DIR, DEF_DATA_DIR, &var_data_dir, 1, 0, 535 VAR_COMMAND_DIR, DEF_COMMAND_DIR, &var_command_dir, 1, 0, 536 VAR_QUEUE_DIR, DEF_QUEUE_DIR, &var_queue_dir, 1, 0, 537 VAR_PID_DIR, DEF_PID_DIR, &var_pid_dir, 1, 0, 538 VAR_INET_INTERFACES, DEF_INET_INTERFACES, &var_inet_interfaces, 1, 0, 539 VAR_PROXY_INTERFACES, DEF_PROXY_INTERFACES, &var_proxy_interfaces, 0, 0, 540 VAR_DOUBLE_BOUNCE, DEF_DOUBLE_BOUNCE, &var_double_bounce_sender, 1, 0, 541 VAR_DEFAULT_PRIVS, DEF_DEFAULT_PRIVS, &var_default_privs, 1, 0, 542 VAR_ALIAS_DB_MAP, DEF_ALIAS_DB_MAP, &var_alias_db_map, 0, 0, 543 VAR_MAIL_RELEASE, DEF_MAIL_RELEASE, &var_mail_release, 1, 0, 544 VAR_MAIL_VERSION, DEF_MAIL_VERSION, &var_mail_version, 1, 0, 545 VAR_DB_TYPE, DEF_DB_TYPE, &var_db_type, 1, 0, 546 VAR_HASH_QUEUE_NAMES, DEF_HASH_QUEUE_NAMES, &var_hash_queue_names, 1, 0, 547 VAR_RCPT_DELIM, DEF_RCPT_DELIM, &var_rcpt_delim, 0, 1, 548 VAR_RELAY_DOMAINS, DEF_RELAY_DOMAINS, &var_relay_domains, 0, 0, 549 VAR_FFLUSH_DOMAINS, DEF_FFLUSH_DOMAINS, &var_fflush_domains, 0, 0, 550 VAR_EXPORT_ENVIRON, DEF_EXPORT_ENVIRON, &var_export_environ, 0, 0, 551 VAR_IMPORT_ENVIRON, DEF_IMPORT_ENVIRON, &var_import_environ, 0, 0, 552 VAR_MYNETWORKS_STYLE, DEF_MYNETWORKS_STYLE, &var_mynetworks_style, 1, 0, 553 VAR_DEBUG_PEER_LIST, DEF_DEBUG_PEER_LIST, &var_debug_peer_list, 0, 0, 554 VAR_VERP_DELIMS, DEF_VERP_DELIMS, &var_verp_delims, 2, 2, 555 VAR_VERP_FILTER, DEF_VERP_FILTER, &var_verp_filter, 1, 0, 556 VAR_PAR_DOM_MATCH, DEF_PAR_DOM_MATCH, &var_par_dom_match, 0, 0, 557 VAR_CONFIG_DIRS, DEF_CONFIG_DIRS, &var_config_dirs, 0, 0, 558 VAR_BOUNCE_SERVICE, DEF_BOUNCE_SERVICE, &var_bounce_service, 1, 0, 559 VAR_CLEANUP_SERVICE, DEF_CLEANUP_SERVICE, &var_cleanup_service, 1, 0, 560 VAR_DEFER_SERVICE, DEF_DEFER_SERVICE, &var_defer_service, 1, 0, 561 VAR_PICKUP_SERVICE, DEF_PICKUP_SERVICE, &var_pickup_service, 1, 0, 562 VAR_QUEUE_SERVICE, DEF_QUEUE_SERVICE, &var_queue_service, 1, 0, 563 VAR_REWRITE_SERVICE, DEF_REWRITE_SERVICE, &var_rewrite_service, 1, 0, 564 VAR_SHOWQ_SERVICE, DEF_SHOWQ_SERVICE, &var_showq_service, 1, 0, 565 VAR_ERROR_SERVICE, DEF_ERROR_SERVICE, &var_error_service, 1, 0, 566 VAR_FLUSH_SERVICE, DEF_FLUSH_SERVICE, &var_flush_service, 1, 0, 567 VAR_VERIFY_SERVICE, DEF_VERIFY_SERVICE, &var_verify_service, 1, 0, 568 VAR_TRACE_SERVICE, DEF_TRACE_SERVICE, &var_trace_service, 1, 0, 569 VAR_PROXYMAP_SERVICE, DEF_PROXYMAP_SERVICE, &var_proxymap_service, 1, 0, 570 VAR_PROXYWRITE_SERVICE, DEF_PROXYWRITE_SERVICE, &var_proxywrite_service, 1, 0, 571 VAR_INT_FILT_CLASSES, DEF_INT_FILT_CLASSES, &var_int_filt_classes, 0, 0, 572 /* multi_instance_wrapper may have dependencies but not dependents. */ 573 VAR_MULTI_WRAPPER, DEF_MULTI_WRAPPER, &var_multi_wrapper, 0, 0, 574 0, 575 }; 576 static const CONFIG_STR_FN_TABLE function_str_defaults_2[] = { 577 VAR_MYNETWORKS, mynetworks, &var_mynetworks, 0, 0, 578 0, 579 }; 580 static const CONFIG_INT_TABLE other_int_defaults[] = { 581 VAR_MAX_USE, DEF_MAX_USE, &var_use_limit, 1, 0, 582 VAR_DONT_REMOVE, DEF_DONT_REMOVE, &var_dont_remove, 0, 0, 583 VAR_LINE_LIMIT, DEF_LINE_LIMIT, &var_line_limit, 512, 0, 584 VAR_MESSAGE_LIMIT, DEF_MESSAGE_LIMIT, &var_message_limit, 0, 0, 585 VAR_HASH_QUEUE_DEPTH, DEF_HASH_QUEUE_DEPTH, &var_hash_queue_depth, 1, 0, 586 VAR_FORK_TRIES, DEF_FORK_TRIES, &var_fork_tries, 1, 0, 587 VAR_FLOCK_TRIES, DEF_FLOCK_TRIES, &var_flock_tries, 1, 0, 588 VAR_DEBUG_PEER_LEVEL, DEF_DEBUG_PEER_LEVEL, &var_debug_peer_level, 1, 0, 589 VAR_FAULT_INJ_CODE, DEF_FAULT_INJ_CODE, &var_fault_inj_code, 0, 0, 590 VAR_DB_CREATE_BUF, DEF_DB_CREATE_BUF, &var_db_create_buf, 1, 0, 591 VAR_DB_READ_BUF, DEF_DB_READ_BUF, &var_db_read_buf, 1, 0, 592 VAR_HEADER_LIMIT, DEF_HEADER_LIMIT, &var_header_limit, 1, 0, 593 VAR_TOKEN_LIMIT, DEF_TOKEN_LIMIT, &var_token_limit, 1, 0, 594 VAR_MIME_MAXDEPTH, DEF_MIME_MAXDEPTH, &var_mime_maxdepth, 1, 0, 595 VAR_MIME_BOUND_LEN, DEF_MIME_BOUND_LEN, &var_mime_bound_len, 1, 0, 596 VAR_DELAY_MAX_RES, DEF_DELAY_MAX_RES, &var_delay_max_res, MIN_DELAY_MAX_RES, MAX_DELAY_MAX_RES, 597 VAR_INET_WINDOW, DEF_INET_WINDOW, &var_inet_windowsize, 0, 0, 598 0, 599 }; 600 static const CONFIG_TIME_TABLE time_defaults[] = { 601 VAR_EVENT_DRAIN, DEF_EVENT_DRAIN, &var_event_drain, 1, 0, 602 VAR_MAX_IDLE, DEF_MAX_IDLE, &var_idle_limit, 1, 0, 603 VAR_IPC_TIMEOUT, DEF_IPC_TIMEOUT, &var_ipc_timeout, 1, 0, 604 VAR_IPC_IDLE, DEF_IPC_IDLE, &var_ipc_idle_limit, 1, 0, 605 VAR_IPC_TTL, DEF_IPC_TTL, &var_ipc_ttl_limit, 1, 0, 606 VAR_TRIGGER_TIMEOUT, DEF_TRIGGER_TIMEOUT, &var_trigger_timeout, 1, 0, 607 VAR_FORK_DELAY, DEF_FORK_DELAY, &var_fork_delay, 1, 0, 608 VAR_FLOCK_DELAY, DEF_FLOCK_DELAY, &var_flock_delay, 1, 0, 609 VAR_FLOCK_STALE, DEF_FLOCK_STALE, &var_flock_stale, 1, 0, 610 VAR_DAEMON_TIMEOUT, DEF_DAEMON_TIMEOUT, &var_daemon_timeout, 1, 0, 611 VAR_IN_FLOW_DELAY, DEF_IN_FLOW_DELAY, &var_in_flow_delay, 0, 10, 612 0, 613 }; 614 static const CONFIG_BOOL_TABLE bool_defaults[] = { 615 VAR_DISABLE_DNS, DEF_DISABLE_DNS, &var_disable_dns, 616 VAR_SOFT_BOUNCE, DEF_SOFT_BOUNCE, &var_soft_bounce, 617 VAR_OWNREQ_SPECIAL, DEF_OWNREQ_SPECIAL, &var_ownreq_special, 618 VAR_STRICT_8BITMIME, DEF_STRICT_8BITMIME, &var_strict_8bitmime, 619 VAR_STRICT_7BIT_HDRS, DEF_STRICT_7BIT_HDRS, &var_strict_7bit_hdrs, 620 VAR_STRICT_8BIT_BODY, DEF_STRICT_8BIT_BODY, &var_strict_8bit_body, 621 VAR_STRICT_ENCODING, DEF_STRICT_ENCODING, &var_strict_encoding, 622 VAR_DISABLE_MIME_INPUT, DEF_DISABLE_MIME_INPUT, &var_disable_mime_input, 623 VAR_DISABLE_MIME_OCONV, DEF_DISABLE_MIME_OCONV, &var_disable_mime_oconv, 624 VAR_VERIFY_NEG_CACHE, DEF_VERIFY_NEG_CACHE, &var_verify_neg_cache, 625 VAR_OLDLOG_COMPAT, DEF_OLDLOG_COMPAT, &var_oldlog_compat, 626 VAR_HELPFUL_WARNINGS, DEF_HELPFUL_WARNINGS, &var_helpful_warnings, 627 VAR_CYRUS_SASL_AUTHZID, DEF_CYRUS_SASL_AUTHZID, &var_cyrus_sasl_authzid, 628 VAR_MULTI_ENABLE, DEF_MULTI_ENABLE, &var_multi_enable, 629 0, 630 }; 631 const char *cp; 632 INET_PROTO_INFO *proto_info; 633 634 /* 635 * Extract syslog_facility early, so that from here on all errors are 636 * logged with the proper facility. 637 */ 638 get_mail_conf_str_table(first_str_defaults); 639 640 if (!msg_syslog_facility(var_syslog_facility)) 641 msg_fatal("file %s/%s: parameter %s: unrecognized value: %s", 642 var_config_dir, MAIN_CONF_FILE, 643 VAR_SYSLOG_FACILITY, var_syslog_facility); 644 645 /* 646 * What protocols should we attempt to support? The result is stored in 647 * the global inet_proto_table variable. 648 */ 649 proto_info = inet_proto_init(VAR_INET_PROTOCOLS, var_inet_protocols); 650 651 /* 652 * Variables whose defaults are determined at runtime. Some sites use 653 * short hostnames in the host table; some sites name their system after 654 * the domain. 655 */ 656 get_mail_conf_str_fn_table(function_str_defaults); 657 if (!valid_hostname(var_myhostname, DO_GRIPE)) 658 msg_fatal("file %s/%s: parameter %s: bad parameter value: %s", 659 var_config_dir, MAIN_CONF_FILE, 660 VAR_MYHOSTNAME, var_myhostname); 661 if (!valid_hostname(var_mydomain, DO_GRIPE)) 662 msg_fatal("file %s/%s: parameter %s: bad parameter value: %s", 663 var_config_dir, MAIN_CONF_FILE, 664 VAR_MYDOMAIN, var_mydomain); 665 666 /* 667 * Variables that are needed by almost every program. 668 * 669 * XXX Reading the myorigin value from file is originally a Debian Linux 670 * feature. This code is not enabled by default because of problems: 1) 671 * it re-implements its own parameter syntax checks, and 2) it does not 672 * implement $name expansions. 673 */ 674 get_mail_conf_str_table(other_str_defaults); 675 #ifdef MYORIGIN_FROM_FILE 676 if (*var_myorigin == '/') { 677 char *origin = read_param_from_file(var_myorigin); 678 679 if (*origin == 0) 680 msg_fatal("%s file %s is empty", VAR_MYORIGIN, var_myorigin); 681 myfree(var_myorigin); /* FIX 20070501 */ 682 var_myorigin = origin; 683 } 684 #endif 685 get_mail_conf_int_table(other_int_defaults); 686 get_mail_conf_bool_table(bool_defaults); 687 get_mail_conf_time_table(time_defaults); 688 check_default_privs(); 689 check_mail_owner(); 690 check_sgid_group(); 691 check_overlap(); 692 #ifdef HAS_DB 693 dict_db_cache_size = var_db_read_buf; 694 #endif 695 inet_windowsize = var_inet_windowsize; 696 697 /* 698 * Variables whose defaults are determined at runtime, after other 699 * variables have been set. This dependency is admittedly a bit tricky. 700 * XXX Perhaps we should just register variables, and let the evaluator 701 * figure out in what order to evaluate things. 702 */ 703 get_mail_conf_str_fn_table(function_str_defaults_2); 704 705 /* 706 * FIX 200412 The IPv6 patch did not call own_inet_addr_list() before 707 * entering the chroot jail on Linux IPv6 systems. Linux has the IPv6 708 * interface list in /proc, which is not available after chrooting. 709 */ 710 (void) own_inet_addr_list(); 711 712 /* 713 * The PID variable cannot be set from the configuration file!! 714 */ 715 set_mail_conf_int(VAR_PID, var_pid = getpid()); 716 717 /* 718 * Neither can the start time variable. It isn't even visible. 719 */ 720 time(&var_starttime); 721 722 /* 723 * Export the syslog name so children can inherit and use it before they 724 * have initialized. 725 */ 726 if ((cp = safe_getenv(CONF_ENV_LOGTAG)) == 0 727 || strcmp(cp, var_syslog_name) != 0) 728 if (setenv(CONF_ENV_LOGTAG, var_syslog_name, 1) < 0) 729 msg_fatal("setenv %s %s: %m", CONF_ENV_LOGTAG, var_syslog_name); 730 731 /* 732 * I have seen this happen just too often. 733 */ 734 if (strcasecmp(var_myhostname, var_relayhost) == 0) 735 msg_fatal("%s and %s parameter settings must not be identical: %s", 736 VAR_MYHOSTNAME, VAR_RELAYHOST, var_myhostname); 737 738 /* 739 * XXX These should be caught by a proper parameter parsing algorithm. 740 */ 741 if (var_myorigin[strcspn(var_myorigin, ", \t\r\n")]) 742 msg_fatal("%s parameter setting must not contain multiple values: %s", 743 VAR_MYORIGIN, var_myorigin); 744 745 if (var_relayhost[strcspn(var_relayhost, ", \t\r\n")]) 746 msg_fatal("%s parameter setting must not contain multiple values: %s", 747 VAR_RELAYHOST, var_relayhost); 748 749 /* 750 * One more sanity check. 751 */ 752 if ((cp = verp_delims_verify(var_verp_delims)) != 0) 753 msg_fatal("file %s/%s: parameters %s and %s: %s", 754 var_config_dir, MAIN_CONF_FILE, 755 VAR_VERP_DELIMS, VAR_VERP_FILTER, cp); 756 } 757