1 /* 2 * Copyright (c) 1998-2005 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5 * Copyright (c) 1988, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * By using this file, you agree to the terms and conditions set 9 * forth in the LICENSE file which can be found at the top level of 10 * the sendmail distribution. 11 */ 12 13 /* 14 ** SENDMAIL.H -- MTA-specific definitions for sendmail. 15 */ 16 17 #ifndef _SENDMAIL_H 18 # define _SENDMAIL_H 1 19 20 #pragma ident "%Z%%M% %I% %E% SMI" 21 22 #ifndef MILTER 23 # define MILTER 1 /* turn on MILTER by default */ 24 #endif /* MILTER */ 25 26 #ifdef _DEFINE 27 # define EXTERN 28 #else /* _DEFINE */ 29 # define EXTERN extern 30 #endif /* _DEFINE */ 31 32 33 #include <unistd.h> 34 35 #include <stddef.h> 36 #include <stdlib.h> 37 #include <stdio.h> 38 #include <ctype.h> 39 #include <setjmp.h> 40 #include <string.h> 41 #include <time.h> 42 # ifdef EX_OK 43 # undef EX_OK /* for SVr4.2 SMP */ 44 # endif /* EX_OK */ 45 46 #include "sendmail/sendmail.h" 47 48 /* profiling? */ 49 #if MONCONTROL 50 # define SM_PROF(x) moncontrol(x) 51 #else /* MONCONTROL */ 52 # define SM_PROF(x) 53 #endif /* MONCONTROL */ 54 55 #ifdef _DEFINE 56 # ifndef lint 57 SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.995 2005/06/23 23:11:22 ca Exp $"; 58 # endif /* ! lint */ 59 #endif /* _DEFINE */ 60 61 #include "bf.h" 62 #include "timers.h" 63 #include <sm/exc.h> 64 #include <sm/heap.h> 65 #include <sm/debug.h> 66 #include <sm/rpool.h> 67 #include <sm/io.h> 68 #include <sm/path.h> 69 #include <sm/signal.h> 70 #include <sm/clock.h> 71 #include <sm/mbdb.h> 72 #include <sm/errstring.h> 73 #include <sm/sysexits.h> 74 #include <sm/shm.h> 75 76 #ifdef LOG 77 # include <syslog.h> 78 #endif /* LOG */ 79 80 81 82 # if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 83 # include <sys/socket.h> 84 # endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 85 # if NETUNIX 86 # include <sys/un.h> 87 # endif /* NETUNIX */ 88 # if NETINET || NETINET6 89 # include <netinet/in.h> 90 # endif /* NETINET || NETINET6 */ 91 # if NETINET6 92 /* 93 ** There is no standard yet for IPv6 includes. 94 ** Specify OS specific implementation in conf.h 95 */ 96 # endif /* NETINET6 */ 97 # if NETISO 98 # include <netiso/iso.h> 99 # endif /* NETISO */ 100 # if NETNS 101 # include <netns/ns.h> 102 # endif /* NETNS */ 103 # if NETX25 104 # include <netccitt/x25.h> 105 # endif /* NETX25 */ 106 107 # if NAMED_BIND 108 # include <arpa/nameser.h> 109 # ifdef NOERROR 110 # undef NOERROR /* avoid <sys/streams.h> conflict */ 111 # endif /* NOERROR */ 112 # include <resolv.h> 113 # else /* NAMED_BIND */ 114 # undef SM_SET_H_ERRNO 115 # define SM_SET_H_ERRNO(err) 116 # endif /* NAMED_BIND */ 117 118 # if HESIOD 119 # include <hesiod.h> 120 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 121 # define HESIOD_INIT /* support for the new interface */ 122 # endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 123 # endif /* HESIOD */ 124 125 #if STARTTLS 126 # include <openssl/ssl.h> 127 # if !TLS_NO_RSA 128 # define RSA_KEYLENGTH 512 129 # endif /* !TLS_NO_RSA */ 130 #endif /* STARTTLS */ 131 132 #if SASL /* include the sasl include files if we have them */ 133 134 135 # if SASL == 2 || SASL >= 20000 136 # include <sasl/sasl.h> 137 # include <sasl/saslutil.h> 138 # else /* SASL == 2 || SASL >= 20000 */ 139 # include <sasl.h> 140 # include <saslutil.h> 141 # endif /* SASL == 2 || SASL >= 20000 */ 142 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 143 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 144 # if SASL == 1 || SASL == 2 145 # undef SASL 146 # define SASL SASL_VERSION 147 # else /* SASL == 1 || SASL == 2 */ 148 # if SASL != SASL_VERSION 149 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 150 ERROR README: see README! 151 # endif /* SASL != SASL_VERSION */ 152 # endif /* SASL == 1 || SASL == 2 */ 153 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 154 # if SASL == 1 155 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 156 ERROR README: see README! 157 # endif /* SASL == 1 */ 158 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 159 #endif /* SASL */ 160 161 /* 162 ** Following are "sort of" configuration constants, but they should 163 ** be pretty solid on most architectures today. They have to be 164 ** defined after <arpa/nameser.h> because some versions of that 165 ** file also define them. In all cases, we can't use sizeof because 166 ** some systems (e.g., Crays) always treat everything as being at 167 ** least 64 bits. 168 */ 169 170 #ifndef INADDRSZ 171 # define INADDRSZ 4 /* size of an IPv4 address in bytes */ 172 #endif /* ! INADDRSZ */ 173 #ifndef IN6ADDRSZ 174 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 175 #endif /* ! IN6ADDRSZ */ 176 #ifndef INT16SZ 177 # define INT16SZ 2 /* size of a 16 bit integer in bytes */ 178 #endif /* ! INT16SZ */ 179 #ifndef INT32SZ 180 # define INT32SZ 4 /* size of a 32 bit integer in bytes */ 181 #endif /* ! INT32SZ */ 182 #ifndef INADDR_LOOPBACK 183 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 184 #endif /* ! INADDR_LOOPBACK */ 185 186 /* 187 ** Error return from inet_addr(3), in case not defined in /usr/include. 188 */ 189 190 #ifndef INADDR_NONE 191 # define INADDR_NONE 0xffffffff 192 #endif /* ! INADDR_NONE */ 193 194 195 /* (f)open() modes for queue files */ 196 # define QF_O_EXTRA 0 197 198 199 /* 200 ** An 'argument class' describes the storage allocation status 201 ** of an object pointed to by an argument to a function. 202 */ 203 204 typedef enum 205 { 206 A_HEAP, /* the storage was allocated by malloc, and the 207 * ownership of the storage is ceded by the caller 208 * to the called function. */ 209 A_TEMP, /* The storage is temporary, and is only guaranteed 210 * to be valid for the duration of the function call. */ 211 A_PERM /* The storage is 'permanent': this might mean static 212 * storage, or rpool storage. */ 213 } ARGCLASS_T; 214 215 /* forward references for prototypes */ 216 typedef struct envelope ENVELOPE; 217 typedef struct mailer MAILER; 218 typedef struct queuegrp QUEUEGRP; 219 220 /* 221 ** Address structure. 222 ** Addresses are stored internally in this structure. 223 */ 224 225 struct address 226 { 227 char *q_paddr; /* the printname for the address */ 228 char *q_user; /* user name */ 229 char *q_ruser; /* real user name, or NULL if q_user */ 230 char *q_host; /* host name */ 231 struct mailer *q_mailer; /* mailer to use */ 232 unsigned long q_flags; /* status flags, see below */ 233 uid_t q_uid; /* user-id of receiver (if known) */ 234 gid_t q_gid; /* group-id of receiver (if known) */ 235 char *q_home; /* home dir (local mailer only) */ 236 char *q_fullname; /* full name if known */ 237 struct address *q_next; /* chain */ 238 struct address *q_alias; /* address this results from */ 239 char *q_owner; /* owner of q_alias */ 240 struct address *q_tchain; /* temporary use chain */ 241 #if PIPELINING 242 struct address *q_pchain; /* chain for pipelining */ 243 #endif /* PIPELINING */ 244 char *q_finalrcpt; /* Final-Recipient: DSN header */ 245 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 246 char *q_status; /* status code for DSNs */ 247 char *q_rstatus; /* remote status message for DSNs */ 248 time_t q_statdate; /* date of status messages */ 249 char *q_statmta; /* MTA generating q_rstatus */ 250 short q_state; /* address state, see below */ 251 char *q_signature; /* MX-based sorting value */ 252 int q_qgrp; /* index into queue groups */ 253 int q_qdir; /* queue directory inside group */ 254 char *q_message; /* error message */ 255 }; 256 257 typedef struct address ADDRESS; 258 259 /* bit values for q_flags */ 260 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 261 #define QPRIMARY 0x00000002 /* set from RCPT or argv */ 262 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 263 #define QSELFREF 0x00000008 /* this address references itself */ 264 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 265 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 266 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 267 #define QPINGONFAILURE 0x00000080 /* give return on failure */ 268 #define QPINGONDELAY 0x00000100 /* give return on message delay */ 269 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 270 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 271 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 272 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 273 #define QDELAYED 0x00002000 /* DSN: message delayed */ 274 #define QALIAS 0x00004000 /* expanded alias */ 275 #define QBYTRACE 0x00008000 /* DeliverBy: trace */ 276 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 277 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 278 #define QTHISPASS 0x40000000 /* temp: address set this pass */ 279 #define QRCPTOK 0x80000000 /* recipient() processed address */ 280 281 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 282 283 /* values for q_state */ 284 #define QS_OK 0 /* address ok (for now)/not yet tried */ 285 #define QS_SENT 1 /* good address, delivery complete */ 286 #define QS_BADADDR 2 /* illegal address */ 287 #define QS_QUEUEUP 3 /* save address in queue */ 288 #define QS_RETRY 4 /* retry delivery for next MX */ 289 #define QS_VERIFIED 5 /* verified, but not expanded */ 290 291 /* 292 ** Notice: all of the following values are variations of QS_DONTSEND. 293 ** If new states are added, they must be inserted in the proper place! 294 ** See the macro definition of QS_IS_DEAD() down below. 295 */ 296 297 #define QS_DONTSEND 6 /* don't send to this address */ 298 #define QS_EXPANDED 7 /* expanded */ 299 #define QS_SENDER 8 /* message sender (MeToo) */ 300 #define QS_CLONED 9 /* addr cloned to split envelope */ 301 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 302 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 303 #define QS_REMOVED 12 /* removed (removefromlist()) */ 304 #define QS_DUPLICATE 13 /* duplicate suppressed */ 305 #define QS_INCLUDED 14 /* :include: delivery */ 306 #define QS_FATALERR 15 /* fatal error, don't deliver */ 307 308 /* address state testing primitives */ 309 #define QS_IS_OK(s) ((s) == QS_OK) 310 #define QS_IS_SENT(s) ((s) == QS_SENT) 311 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 312 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 313 #define QS_IS_RETRY(s) ((s) == QS_RETRY) 314 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 315 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 316 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 317 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 318 (s) == QS_QUEUEUP || \ 319 (s) == QS_RETRY || \ 320 (s) == QS_VERIFIED) 321 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 322 (s) == QS_RETRY) 323 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 324 (s) == QS_QUEUEUP || \ 325 (s) == QS_RETRY) 326 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 327 (s) == QS_RETRY || \ 328 (s) == QS_SENT) 329 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 330 331 332 #define NULLADDR ((ADDRESS *) NULL) 333 334 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 335 336 /* functions */ 337 extern void cataddr __P((char **, char **, char *, int, int)); 338 extern char *crackaddr __P((char *, ENVELOPE *)); 339 extern bool emptyaddr __P((ADDRESS *)); 340 extern ADDRESS *getctladdr __P((ADDRESS *)); 341 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 342 extern bool invalidaddr __P((char *, char *, bool)); 343 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 344 ENVELOPE *, bool)); 345 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool)); 346 extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool)); 347 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 348 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 349 extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 350 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 351 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 352 #if MILTER 353 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 354 #endif /* MILTER */ 355 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 356 357 /* macro to simplify the common call to rewrite() */ 358 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 359 360 /* 361 ** Mailer definition structure. 362 ** Every mailer known to the system is declared in this 363 ** structure. It defines the pathname of the mailer, some 364 ** flags associated with it, and the argument vector to 365 ** pass to it. The flags are defined in conf.c 366 ** 367 ** The argument vector is expanded before actual use. All 368 ** words except the first are passed through the macro 369 ** processor. 370 */ 371 372 struct mailer 373 { 374 char *m_name; /* symbolic name of this mailer */ 375 char *m_mailer; /* pathname of the mailer to use */ 376 char *m_mtatype; /* type of this MTA */ 377 char *m_addrtype; /* type for addresses */ 378 char *m_diagtype; /* type for diagnostics */ 379 BITMAP256 m_flags; /* status flags, see below */ 380 short m_mno; /* mailer number internally */ 381 short m_nice; /* niceness to run at (mostly for prog) */ 382 char **m_argv; /* template argument vector */ 383 short m_sh_rwset; /* rewrite set: sender header addresses */ 384 short m_se_rwset; /* rewrite set: sender envelope addresses */ 385 short m_rh_rwset; /* rewrite set: recipient header addresses */ 386 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 387 char *m_eol; /* end of line string */ 388 long m_maxsize; /* size limit on message to this mailer */ 389 int m_linelimit; /* max # characters per line */ 390 int m_maxdeliveries; /* max deliveries per mailer connection */ 391 char *m_execdir; /* directory to chdir to before execv */ 392 char *m_rootdir; /* directory to chroot to before execv */ 393 uid_t m_uid; /* UID to run as */ 394 gid_t m_gid; /* GID to run as */ 395 char *m_defcharset; /* default character set */ 396 time_t m_wait; /* timeout to wait for end */ 397 int m_maxrcpt; /* max recipients per envelope client-side */ 398 short m_qgrp; /* queue group for this mailer */ 399 }; 400 401 /* bits for m_flags */ 402 #define M_ESMTP 'a' /* run Extended SMTP */ 403 #define M_ALIASABLE 'A' /* user can be LHS of an alias */ 404 #define M_BLANKEND 'b' /* ensure blank line at end of message */ 405 #define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */ 406 #define M_NOCOMMENT 'c' /* don't include comment part of address */ 407 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 408 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 409 /* 'D' CF: include Date: */ 410 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 411 #define M_ESCFROM 'E' /* escape From lines to >From */ 412 #define M_FOPT 'f' /* mailer takes picky -f flag */ 413 /* 'F' CF: include From: or Resent-From: */ 414 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 415 #define M_HST_UPPER 'h' /* preserve host case distinction */ 416 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 417 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 418 #define M_INTERNAL 'I' /* SMTP to another sendmail site */ 419 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 420 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 421 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 422 #define M_LOCALMAILER 'l' /* delivery is to this host */ 423 #define M_LIMITS 'L' /* must enforce SMTP line limits */ 424 #define M_MUSER 'm' /* can handle multiple users at once */ 425 /* 'M' CF: include Message-Id: */ 426 #define M_NHDR 'n' /* don't insert From line */ 427 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 428 #define M_RUNASRCPT 'o' /* always run mailer as recipient */ 429 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 430 /* 'P' CF: include Return-Path: */ 431 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 432 #define M_ROPT 'r' /* mailer takes picky -r flag */ 433 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 434 #define M_STRIPQ 's' /* strip quote chars from user/host */ 435 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 436 #define M_USR_UPPER 'u' /* preserve user case distinction */ 437 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 438 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 439 /* 'V' UIUC: !-relativize all addresses */ 440 #define M_HASPWENT 'w' /* check for /etc/passwd entry */ 441 #define M_NOHOSTSTAT 'W' /* ignore long term host status information */ 442 /* 'x' CF: include Full-Name: */ 443 #define M_XDOT 'X' /* use hidden-dot algorithm */ 444 #define M_LMTP 'z' /* run Local Mail Transport Protocol */ 445 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 446 #define M_NOMX '0' /* turn off MX lookups */ 447 #define M_NONULLS '1' /* don't send null bytes */ 448 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 449 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 450 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 451 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 452 #define M_7BITS '7' /* use 7-bit path */ 453 #define M_8BITS '8' /* force "just send 8" behaviour */ 454 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 455 #define M_CHECKINCLUDE ':' /* check for :include: files */ 456 #define M_CHECKPROG '|' /* check for |program addresses */ 457 #define M_CHECKFILE '/' /* check for /file addresses */ 458 #define M_CHECKUDB '@' /* user can be user database key */ 459 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 460 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 461 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 462 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 463 464 /* functions */ 465 extern void initerrmailers __P((void)); 466 extern void makemailer __P((char *)); 467 extern void makequeue __P((char *, bool)); 468 extern void runqueueevent __P((int)); 469 #if _FFR_QUEUE_RUN_PARANOIA 470 extern bool checkqueuerunner __P((void)); 471 #endif /* _FFR_QUEUE_RUN_PARANOIA */ 472 473 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 474 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 475 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 476 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 477 EXTERN MAILER *Mailer[MAXMAILERS + 1]; 478 479 /* 480 ** Queue group definition structure. 481 ** Every queue group known to the system is declared in this structure. 482 ** It defines the basic pathname of the queue group, some flags 483 ** associated with it, and the argument vector to pass to it. 484 */ 485 486 struct qpaths_s 487 { 488 char *qp_name; /* name of queue dir, relative path */ 489 short qp_subdirs; /* use subdirs? */ 490 short qp_fsysidx; /* file system index of this directory */ 491 # if SM_CONF_SHM 492 int qp_idx; /* index into array for queue information */ 493 # endif /* SM_CONF_SHM */ 494 }; 495 496 typedef struct qpaths_s QPATHS; 497 498 struct queuegrp 499 { 500 char *qg_name; /* symbolic name of this queue group */ 501 502 /* 503 ** For now this is the same across all queue groups. 504 ** Otherwise we have to play around with chdir(). 505 */ 506 507 char *qg_qdir; /* common component of queue directory */ 508 short qg_index; /* queue number internally, index in Queue[] */ 509 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 510 int qg_numqueues; /* number of queues in this queue */ 511 512 /* 513 ** qg_queueintvl == 0 denotes that no individual value is used. 514 ** Whatever accesses this must deal with "<= 0" as 515 ** "not set, use appropriate default". 516 */ 517 518 time_t qg_queueintvl; /* interval for queue runs */ 519 QPATHS *qg_qpaths; /* list of queue directories */ 520 BITMAP256 qg_flags; /* status flags, see below */ 521 short qg_nice; /* niceness for queue run */ 522 int qg_wgrp; /* Assigned to this work group */ 523 int qg_maxlist; /* max items in work queue for this group */ 524 int qg_curnum; /* current number of queue for queue runs */ 525 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 526 527 time_t qg_nextrun; /* time for next queue runs */ 528 #if _FFR_QUEUE_GROUP_SORTORDER 529 short qg_sortorder; /* how do we sort this queuerun */ 530 #endif /* _FFR_QUEUE_GROUP_SORTORDER */ 531 #if 0 532 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 533 long qg_qfactor; /* slope of queue function */ 534 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 535 #endif /* 0 */ 536 }; 537 538 /* bits for qg_flags (XXX: unused as of now) */ 539 #define QD_DEFINED ((char) 1) /* queue group has been defined */ 540 #define QD_FORK 'f' /* fork queue runs */ 541 542 extern void filesys_update __P((void)); 543 #if _FFR_ANY_FREE_FS 544 extern bool filesys_free __P((long)); 545 #endif /* _FFR_ANY_FREE_FS */ 546 547 #if SASL 548 /* 549 ** SASL 550 */ 551 552 /* lines in authinfo file or index into SASL_AI_T */ 553 # define SASL_WRONG (-1) 554 # define SASL_USER 0 /* authorization id (user) */ 555 # define SASL_AUTHID 1 /* authentication id */ 556 # define SASL_PASSWORD 2 /* password fuer authid */ 557 # define SASL_DEFREALM 3 /* realm to use */ 558 # define SASL_MECHLIST 4 /* list of mechanisms to try */ 559 # define SASL_ID_REALM 5 /* authid@defrealm */ 560 561 /* 562 ** Current mechanism; this is just used to convey information between 563 ** invocation of SASL callback functions. 564 ** It must be last in the list, because it's not allocated by us 565 ** and hence we don't free() it. 566 */ 567 # define SASL_MECH 6 568 # define SASL_ENTRIES 7 /* number of entries in array */ 569 570 # define SASL_USER_BIT (1 << SASL_USER) 571 # define SASL_AUTHID_BIT (1 << SASL_AUTHID) 572 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 573 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 574 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 575 576 /* authenticated? */ 577 # define SASL_NOT_AUTH 0 /* not authenticated */ 578 # define SASL_PROC_AUTH 1 /* in process of authenticating */ 579 # define SASL_IS_AUTH 2 /* authenticated */ 580 581 /* SASL options */ 582 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 583 # if SASL >= 20101 584 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 585 # else /* SASL >= 20101 */ 586 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 587 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 588 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 589 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 590 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 591 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 592 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 593 ERROR: change SASL_SEC_MASK_ notify sendmail.org! 594 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 595 # endif /* SASL >= 20101 */ 596 # define MAXOUTLEN 8192 /* length of output buffer */ 597 598 /* functions */ 599 extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 600 extern char *iteminlist __P((char *, char *, char *)); 601 # if SASL >= 20000 602 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 603 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 604 # else /* SASL >= 20000 */ 605 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 606 # if SASL > 10515 607 extern int safesaslfile __P((void *, char *, int)); 608 # else /* SASL > 10515 */ 609 extern int safesaslfile __P((void *, char *)); 610 # endif /* SASL > 10515 */ 611 # endif /* SASL >= 20000 */ 612 extern void stop_sasl_client __P((void)); 613 614 /* structure to store authinfo */ 615 typedef char *SASL_AI_T[SASL_ENTRIES]; 616 617 EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 618 EXTERN char *AuthRealm; /* AUTH realm */ 619 EXTERN char *SASLInfo; /* file with AUTH info */ 620 EXTERN int SASLOpts; /* options for SASL */ 621 EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 622 #endif /* SASL */ 623 624 /* 625 ** Structure to store macros. 626 */ 627 typedef struct 628 { 629 SM_RPOOL_T *mac_rpool; /* resource pool */ 630 BITMAP256 mac_allocated; /* storage has been alloc()? */ 631 char *mac_table[MAXMACROID + 1]; /* macros */ 632 } MACROS_T; 633 634 EXTERN MACROS_T GlobalMacros; 635 636 /* 637 ** Information about currently open connections to mailers, or to 638 ** hosts that we have looked up recently. 639 */ 640 641 #define MCI struct mailer_con_info 642 643 MCI 644 { 645 unsigned long mci_flags; /* flag bits, see below */ 646 short mci_errno; /* error number on last connection */ 647 short mci_herrno; /* h_errno from last DNS lookup */ 648 short mci_exitstat; /* exit status from last connection */ 649 short mci_state; /* SMTP state */ 650 int mci_deliveries; /* delivery attempts for connection */ 651 long mci_maxsize; /* max size this server will accept */ 652 SM_FILE_T *mci_in; /* input side of connection */ 653 SM_FILE_T *mci_out; /* output side of connection */ 654 pid_t mci_pid; /* process id of subordinate proc */ 655 char *mci_phase; /* SMTP phase string */ 656 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 657 char *mci_host; /* host name */ 658 char *mci_status; /* DSN status to be copied to addrs */ 659 char *mci_rstatus; /* SMTP status to be copied to addrs */ 660 time_t mci_lastuse; /* last usage time */ 661 SM_FILE_T *mci_statfile; /* long term status file */ 662 char *mci_heloname; /* name to use as HELO arg */ 663 long mci_min_by; /* minimum DELIVERBY */ 664 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 665 char *mci_tolist; /* list of valid recipients */ 666 SM_RPOOL_T *mci_rpool; /* resource pool */ 667 #if PIPELINING 668 int mci_okrcpts; /* number of valid recipients */ 669 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 670 #endif /* PIPELINING */ 671 #if SASL 672 SASL_AI_T mci_sai; /* authentication info */ 673 bool mci_sasl_auth; /* authenticated? */ 674 int mci_sasl_string_len; 675 char *mci_sasl_string; /* sasl reply string */ 676 char *mci_saslcap; /* SASL list of mechanisms */ 677 sasl_conn_t *mci_conn; /* SASL connection */ 678 #endif /* SASL */ 679 #if STARTTLS 680 SSL *mci_ssl; /* SSL connection */ 681 #endif /* STARTTLS */ 682 MACROS_T mci_macro; /* macro definitions */ 683 }; 684 685 686 /* flag bits */ 687 #define MCIF_VALID 0x00000001 /* this entry is valid */ 688 /* 0x00000002 unused, was MCIF_TEMP */ 689 #define MCIF_CACHED 0x00000004 /* currently in open cache */ 690 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 691 #define MCIF_EXPN 0x00000010 /* EXPN command supported */ 692 #define MCIF_SIZE 0x00000020 /* SIZE option supported */ 693 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 694 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 695 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 696 #define MCIF_INHEADER 0x00000200 /* currently outputing header */ 697 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 698 #define MCIF_DSN 0x00000800 /* DSN extension supported */ 699 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 700 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 701 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 702 #define MCIF_AUTH 0x00008000 /* AUTH= supported */ 703 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 704 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 705 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 706 #define MCIF_VERB 0x00080000 /* VERB supported */ 707 #if STARTTLS 708 #define MCIF_TLS 0x00100000 /* STARTTLS supported */ 709 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 710 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 711 #else /* STARTTLS */ 712 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 713 #endif /* STARTTLS */ 714 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 715 #if _FFR_IGNORE_EXT_ON_HELO 716 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 717 #endif /* _FFR_IGNORE_EXT_ON_HELO */ 718 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 719 720 /* states */ 721 #define MCIS_CLOSED 0 /* no traffic on this connection */ 722 #define MCIS_OPENING 1 /* sending initial protocol */ 723 #define MCIS_OPEN 2 /* open, initial protocol sent */ 724 #define MCIS_MAIL 3 /* MAIL command sent */ 725 #define MCIS_RCPT 4 /* RCPT commands being sent */ 726 #define MCIS_DATA 5 /* DATA command sent */ 727 #define MCIS_QUITING 6 /* running quit protocol */ 728 #define MCIS_SSD 7 /* service shutting down */ 729 #define MCIS_ERROR 8 /* I/O error on connection */ 730 731 /* functions */ 732 extern void mci_cache __P((MCI *)); 733 extern void mci_close __P((MCI *, char *where)); 734 extern void mci_dump __P((SM_FILE_T *, MCI *, bool)); 735 extern void mci_dump_all __P((SM_FILE_T *, bool)); 736 extern void mci_flush __P((bool, MCI *)); 737 extern MCI *mci_get __P((char *, MAILER *)); 738 extern int mci_lock_host __P((MCI *)); 739 extern bool mci_match __P((char *, MAILER *)); 740 extern int mci_print_persistent __P((char *, char *)); 741 extern int mci_purge_persistent __P((char *, char *)); 742 extern MCI **mci_scan __P((MCI *)); 743 extern void mci_setstat __P((MCI *, int, char *, char *)); 744 extern void mci_store_persistent __P((MCI *)); 745 extern int mci_traverse_persistent __P((int (*)(), char *)); 746 extern void mci_unlock_host __P((MCI *)); 747 748 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 749 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 750 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 751 752 /* 753 ** Header structure. 754 ** This structure is used internally to store header items. 755 */ 756 757 struct header 758 { 759 char *h_field; /* the name of the field */ 760 char *h_value; /* the value of that field */ 761 struct header *h_link; /* the next header */ 762 unsigned char h_macro; /* include header if macro defined */ 763 unsigned long h_flags; /* status bits, see below */ 764 BITMAP256 h_mflags; /* m_flags bits needed */ 765 }; 766 767 typedef struct header HDR; 768 769 /* 770 ** Header information structure. 771 ** Defined in conf.c, this struct declares the header fields 772 ** that have some magic meaning. 773 */ 774 775 struct hdrinfo 776 { 777 char *hi_field; /* the name of the field */ 778 unsigned long hi_flags; /* status bits, see below */ 779 char *hi_ruleset; /* validity check ruleset */ 780 }; 781 782 extern struct hdrinfo HdrInfo[]; 783 784 /* bits for h_flags and hi_flags */ 785 #define H_EOH 0x00000001 /* field terminates header */ 786 #define H_RCPT 0x00000002 /* contains recipient addresses */ 787 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 788 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 789 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 790 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 791 #define H_FORCE 0x00000040 /* force this field, even if default */ 792 #define H_TRACE 0x00000080 /* this field contains trace information */ 793 #define H_FROM 0x00000100 /* this is a from-type field */ 794 #define H_VALID 0x00000200 /* this field has a validated value */ 795 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 796 #define H_ERRORSTO 0x00000800 /* field has error address info */ 797 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 798 #define H_CTYPE 0x00002000 /* this is a content-type field */ 799 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 800 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 801 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 802 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 803 #define H_USER 0x00040000 /* header came from the user/SMTP */ 804 805 /* bits for chompheader() */ 806 #define CHHDR_DEF 0x0001 /* default header */ 807 #define CHHDR_CHECK 0x0002 /* call ruleset for header */ 808 #define CHHDR_USER 0x0004 /* header from user */ 809 #define CHHDR_QUEUE 0x0008 /* header from queue file */ 810 811 /* functions */ 812 extern void addheader __P((char *, char *, int, ENVELOPE *)); 813 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 814 extern void commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *)); 815 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 816 extern void eatheader __P((ENVELOPE *, bool, bool)); 817 extern char *hvalue __P((char *, HDR *)); 818 extern void insheader __P((int, char *, char *, int, ENVELOPE *)); 819 extern bool isheader __P((char *)); 820 extern void putfromline __P((MCI *, ENVELOPE *)); 821 extern void setupheaders __P((void)); 822 823 /* 824 ** Performance monitoring 825 */ 826 827 #define TIMERS struct sm_timers 828 829 TIMERS 830 { 831 TIMER ti_overall; /* the whole process */ 832 }; 833 834 835 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 836 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 837 838 /* 839 ** Envelope structure. 840 ** This structure defines the message itself. There is usually 841 ** only one of these -- for the message that we originally read 842 ** and which is our primary interest -- but other envelopes can 843 ** be generated during processing. For example, error messages 844 ** will have their own envelope. 845 */ 846 847 struct envelope 848 { 849 HDR *e_header; /* head of header list */ 850 long e_msgpriority; /* adjusted priority of this message */ 851 time_t e_ctime; /* time message appeared in the queue */ 852 char *e_to; /* (list of) target person(s) */ 853 ADDRESS e_from; /* the person it is from */ 854 char *e_sender; /* e_from.q_paddr w comments stripped */ 855 char **e_fromdomain; /* the domain part of the sender */ 856 ADDRESS *e_sendqueue; /* list of message recipients */ 857 ADDRESS *e_errorqueue; /* the queue for error responses */ 858 859 /* 860 ** Overflow detection is based on < 0, so don't change this 861 ** to unsigned. We don't use unsigned and == ULONG_MAX because 862 ** some libc's don't have strtoul(), see mail_esmtp_args(). 863 */ 864 865 long e_msgsize; /* size of the message in bytes */ 866 char *e_msgid; /* message id (for logging) */ 867 unsigned long e_flags; /* flags, see below */ 868 int e_nrcpts; /* number of recipients */ 869 short e_class; /* msg class (priority, junk, etc.) */ 870 short e_hopcount; /* number of times processed */ 871 short e_nsent; /* number of sends since checkpoint */ 872 short e_sendmode; /* message send mode */ 873 short e_errormode; /* error return mode */ 874 short e_timeoutclass; /* message timeout class */ 875 void (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 876 /* function to put header of message */ 877 void (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 878 /* function to put body of message */ 879 ENVELOPE *e_parent; /* the message this one encloses */ 880 ENVELOPE *e_sibling; /* the next envelope of interest */ 881 char *e_bodytype; /* type of message body */ 882 SM_FILE_T *e_dfp; /* data file */ 883 char *e_id; /* code for this entry in queue */ 884 int e_qgrp; /* queue group (index into queues) */ 885 int e_qdir; /* index into queue directories */ 886 int e_dfqgrp; /* data file queue group index */ 887 int e_dfqdir; /* data file queue directory index */ 888 int e_xfqgrp; /* queue group (index into queues) */ 889 int e_xfqdir; /* index into queue directories (xf) */ 890 SM_FILE_T *e_xfp; /* transcript file */ 891 SM_FILE_T *e_lockfp; /* the lock file for this message */ 892 char *e_message; /* error message; readonly; NULL, or 893 * static storage, or allocated from 894 * e_rpool */ 895 char *e_statmsg; /* stat msg (changes per delivery). 896 * readonly. NULL or allocated from 897 * e_rpool. */ 898 char *e_quarmsg; /* why envelope is quarantined */ 899 char e_qfletter; /* queue file letter on disk */ 900 char *e_msgboundary; /* MIME-style message part boundary */ 901 char *e_origrcpt; /* original recipient (one only) */ 902 char *e_envid; /* envelope id from MAIL FROM: line */ 903 char *e_status; /* DSN status for this message */ 904 time_t e_dtime; /* time of last delivery attempt */ 905 int e_ntries; /* number of delivery attempts */ 906 dev_t e_dfdev; /* data file device (crash recovery) */ 907 ino_t e_dfino; /* data file inode (crash recovery) */ 908 MACROS_T e_macro; /* macro definitions */ 909 MCI *e_mci; /* connection info */ 910 char *e_auth_param; /* readonly; NULL or static storage or 911 * allocated from e_rpool */ 912 TIMERS e_timers; /* per job timers */ 913 long e_deliver_by; /* deliver by */ 914 int e_dlvr_flag; /* deliver by flag */ 915 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 916 }; 917 918 /* values for e_flags */ 919 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 920 #define EF_INQUEUE 0x00000002L /* this message is fully queued */ 921 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 922 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 923 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 924 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 925 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 926 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 927 #define EF_RESENT 0x00000100L /* this message is being forwarded */ 928 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 929 #define EF_WARNING 0x00000400L /* warning message has been sent */ 930 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 931 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 932 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 933 #define EF_METOO 0x00004000L /* send to me too */ 934 #define EF_LOGSENDER 0x00008000L /* need to log the sender */ 935 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 936 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 937 #define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 938 #define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 939 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 940 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 941 #define EF_IS_MIME 0x00400000L /* really is a MIME message */ 942 #define EF_DONT_MIME 0x00800000L /* never MIME this message */ 943 #define EF_DISCARD 0x01000000L /* discard the message */ 944 #define EF_TOOBIG 0x02000000L /* message is too big */ 945 #define EF_SPLIT 0x04000000L /* envelope has been split */ 946 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 947 948 #define DLVR_NOTIFY 0x01 949 #define DLVR_RETURN 0x02 950 #define DLVR_TRACE 0x10 951 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 952 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 953 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 954 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 955 956 #define BODYTYPE_NONE (0) 957 #define BODYTYPE_7BIT (1) 958 #define BODYTYPE_8BITMIME (2) 959 #define BODYTYPE_ILLEGAL (-1) 960 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 961 962 extern ENVELOPE BlankEnvelope; 963 964 /* functions */ 965 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 966 extern void dropenvelope __P((ENVELOPE *, bool, bool)); 967 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 968 extern void clrsessenvelope __P((ENVELOPE *)); 969 extern void printenvflags __P((ENVELOPE *)); 970 extern void putbody __P((MCI *, ENVELOPE *, char *)); 971 extern void putheader __P((MCI *, HDR *, ENVELOPE *, int)); 972 973 /* 974 ** Message priority classes. 975 ** 976 ** The message class is read directly from the Priority: header 977 ** field in the message. 978 ** 979 ** CurEnv->e_msgpriority is the number of bytes in the message plus 980 ** the creation time (so that jobs ``tend'' to be ordered correctly), 981 ** adjusted by the message class, the number of recipients, and the 982 ** amount of time the message has been sitting around. This number 983 ** is used to order the queue. Higher values mean LOWER priority. 984 ** 985 ** Each priority class point is worth WkClassFact priority points; 986 ** each recipient is worth WkRecipFact priority points. Each time 987 ** we reprocess a message the priority is adjusted by WkTimeFact. 988 ** WkTimeFact should normally decrease the priority so that jobs 989 ** that have historically failed will be run later; thanks go to 990 ** Jay Lepreau at Utah for pointing out the error in my thinking. 991 ** 992 ** The "class" is this number, unadjusted by the age or size of 993 ** this message. Classes with negative representations will have 994 ** error messages thrown away if they are not local. 995 */ 996 997 struct priority 998 { 999 char *pri_name; /* external name of priority */ 1000 int pri_val; /* internal value for same */ 1001 }; 1002 1003 EXTERN int NumPriorities; /* pointer into Priorities */ 1004 EXTERN struct priority Priorities[MAXPRIORITIES]; 1005 1006 /* 1007 ** Rewrite rules. 1008 */ 1009 1010 struct rewrite 1011 { 1012 char **r_lhs; /* pattern match */ 1013 char **r_rhs; /* substitution value */ 1014 struct rewrite *r_next;/* next in chain */ 1015 int r_line; /* rule line in sendmail.cf */ 1016 }; 1017 1018 /* 1019 ** Special characters in rewriting rules. 1020 ** These are used internally only. 1021 ** The COND* rules are actually used in macros rather than in 1022 ** rewriting rules, but are given here because they 1023 ** cannot conflict. 1024 */ 1025 1026 /* left hand side items */ 1027 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1028 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1029 #define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1030 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1031 #define MATCHNCLASS ((unsigned char)0224) /* match anything not in class */ 1032 #define MATCHREPL ((unsigned char)0225) /* replacement on RHS for above */ 1033 1034 /* right hand side items */ 1035 #define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1036 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1037 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1038 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1039 1040 /* conditionals in macros */ 1041 #define CONDIF ((unsigned char)0232) /* conditional if-then */ 1042 #define CONDELSE ((unsigned char)0233) /* conditional else */ 1043 #define CONDFI ((unsigned char)0234) /* conditional fi */ 1044 1045 /* bracket characters for host name lookup */ 1046 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1047 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1048 1049 /* bracket characters for generalized lookup */ 1050 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1051 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1052 1053 /* macro substitution character */ 1054 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1055 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1056 1057 /* to make the code clearer */ 1058 #define MATCHZERO CANONHOST 1059 1060 #define MAXMATCH 9 /* max params per rewrite */ 1061 #define MAX_MAP_ARGS 10 /* max arguments for map */ 1062 1063 /* external <==> internal mapping table */ 1064 struct metamac 1065 { 1066 char metaname; /* external code (after $) */ 1067 unsigned char metaval; /* internal code (as above) */ 1068 }; 1069 1070 /* values for macros with external names only */ 1071 #define MID_OPMODE 0202 /* operation mode */ 1072 1073 /* functions */ 1074 #if SM_HEAP_CHECK 1075 extern void 1076 macdefine_tagged __P(( 1077 MACROS_T *_mac, 1078 ARGCLASS_T _vclass, 1079 int _id, 1080 char *_value, 1081 char *_file, 1082 int _line, 1083 int _group)); 1084 # define macdefine(mac,c,id,v) \ 1085 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1086 #else /* SM_HEAP_CHECK */ 1087 extern void 1088 macdefine __P(( 1089 MACROS_T *_mac, 1090 ARGCLASS_T _vclass, 1091 int _id, 1092 char *_value)); 1093 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1094 #endif /* SM_HEAP_CHECK */ 1095 extern void macset __P((MACROS_T *, int, char *)); 1096 #define macget(mac, i) (mac)->mac_table[i] 1097 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1098 extern int macid_parse __P((char *, char **)); 1099 #define macid(name) macid_parse(name, NULL) 1100 extern char *macname __P((int)); 1101 extern char *macvalue __P((int, ENVELOPE *)); 1102 extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *)); 1103 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1104 extern void setclass __P((int, char *)); 1105 extern int strtorwset __P((char *, char **, int)); 1106 extern void translate_dollars __P((char *)); 1107 extern bool wordinclass __P((char *, int)); 1108 1109 /* 1110 ** Name canonification short circuit. 1111 ** 1112 ** If the name server for a host is down, the process of trying to 1113 ** canonify the name can hang. This is similar to (but alas, not 1114 ** identical to) looking up the name for delivery. This stab type 1115 ** caches the result of the name server lookup so we don't hang 1116 ** multiple times. 1117 */ 1118 1119 #define NAMECANON struct _namecanon 1120 1121 NAMECANON 1122 { 1123 short nc_errno; /* cached errno */ 1124 short nc_herrno; /* cached h_errno */ 1125 short nc_stat; /* cached exit status code */ 1126 short nc_flags; /* flag bits */ 1127 char *nc_cname; /* the canonical name */ 1128 time_t nc_exp; /* entry expires at */ 1129 }; 1130 1131 /* values for nc_flags */ 1132 #define NCF_VALID 0x0001 /* entry valid */ 1133 1134 /* hostsignature structure */ 1135 1136 struct hostsig_t 1137 { 1138 char *hs_sig; /* hostsignature */ 1139 time_t hs_exp; /* entry expires at */ 1140 }; 1141 1142 typedef struct hostsig_t HOSTSIG_T; 1143 1144 /* functions */ 1145 extern bool getcanonname __P((char *, int, bool, int *)); 1146 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1147 extern char *hostsignature __P((MAILER *, char *)); 1148 extern int getfallbackmxrr __P((char *)); 1149 1150 /* 1151 ** Mapping functions 1152 ** 1153 ** These allow arbitrary mappings in the config file. The idea 1154 ** (albeit not the implementation) comes from IDA sendmail. 1155 */ 1156 1157 #define MAPCLASS struct _mapclass 1158 #define MAP struct _map 1159 #define MAXMAPACTIONS 5 /* size of map_actions array */ 1160 1161 1162 /* 1163 ** An actual map. 1164 */ 1165 1166 MAP 1167 { 1168 MAPCLASS *map_class; /* the class of this map */ 1169 MAPCLASS *map_orgclass; /* the original class of this map */ 1170 char *map_mname; /* name of this map */ 1171 long map_mflags; /* flags, see below */ 1172 char *map_file; /* the (nominal) filename */ 1173 ARBPTR_T map_db1; /* the open database ptr */ 1174 ARBPTR_T map_db2; /* an "extra" database pointer */ 1175 char *map_keycolnm; /* key column name */ 1176 char *map_valcolnm; /* value column name */ 1177 unsigned char map_keycolno; /* key column number */ 1178 unsigned char map_valcolno; /* value column number */ 1179 char map_coldelim; /* column delimiter */ 1180 char map_spacesub; /* spacesub */ 1181 char *map_app; /* to append to successful matches */ 1182 char *map_tapp; /* to append to "tempfail" matches */ 1183 char *map_domain; /* the (nominal) NIS domain */ 1184 char *map_rebuild; /* program to run to do auto-rebuild */ 1185 time_t map_mtime; /* last database modification time */ 1186 time_t map_timeout; /* timeout for map accesses */ 1187 int map_retry; /* # of retries for map accesses */ 1188 pid_t map_pid; /* PID of process which opened map */ 1189 int map_lockfd; /* auxiliary lock file descriptor */ 1190 short map_specificity; /* specificity of aliases */ 1191 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1192 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1193 }; 1194 1195 1196 /* bit values for map_mflags */ 1197 #define MF_VALID 0x00000001 /* this entry is valid */ 1198 #define MF_INCLNULL 0x00000002 /* include null byte in key */ 1199 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1200 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1201 #define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1202 #define MF_OPEN 0x00000020 /* this entry is open */ 1203 #define MF_WRITABLE 0x00000040 /* open for writing */ 1204 #define MF_ALIAS 0x00000080 /* this is an alias file */ 1205 #define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1206 #define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1207 #define MF_LOCKED 0x00000400 /* this map is currently locked */ 1208 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1209 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1210 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1211 /* 0x00004000 */ 1212 #define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1213 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1214 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1215 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1216 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1217 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1218 #define MF_SINGLEDN 0x00200000 /* only one match, but multi values */ 1219 #define MF_FILECLASS 0x00400000 /* this is a file class map */ 1220 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1221 #define MF_CLOSING 0x01000000 /* map is being closed */ 1222 1223 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1224 { \ 1225 if (!openmap(map)) \ 1226 return NULL; \ 1227 } 1228 1229 1230 /* indices for map_actions */ 1231 #define MA_NOTFOUND 0 /* member map returned "not found" */ 1232 #define MA_UNAVAIL 1 /* member map is not available */ 1233 #define MA_TRYAGAIN 2 /* member map returns temp failure */ 1234 1235 /* macros to handle MapTempFail */ 1236 #define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1237 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1238 #define RESET_MAPTEMPFAIL MapTempFail = 0 1239 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1240 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1241 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1242 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1243 1244 /* 1245 ** The class of a map -- essentially the functions to call 1246 */ 1247 1248 MAPCLASS 1249 { 1250 char *map_cname; /* name of this map class */ 1251 char *map_ext; /* extension for database file */ 1252 short map_cflags; /* flag bits, see below */ 1253 bool (*map_parse)__P((MAP *, char *)); 1254 /* argument parsing function */ 1255 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1256 /* lookup function */ 1257 void (*map_store)__P((MAP *, char *, char *)); 1258 /* store function */ 1259 bool (*map_open)__P((MAP *, int)); 1260 /* open function */ 1261 void (*map_close)__P((MAP *)); 1262 /* close function */ 1263 }; 1264 1265 /* bit values for map_cflags */ 1266 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1267 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1268 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1269 #define MCF_OPTFILE 0x0008 /* file name is optional */ 1270 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1271 1272 /* functions */ 1273 extern void closemaps __P((bool)); 1274 extern bool impl_map_open __P((MAP *, int)); 1275 extern void initmaps __P((void)); 1276 extern MAP *makemapentry __P((char *)); 1277 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1278 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1279 #if NETINFO 1280 extern char *ni_propval __P((char *, char *, char *, char *, int)); 1281 #endif /* NETINFO */ 1282 extern bool openmap __P((MAP *)); 1283 #if USERDB 1284 extern void _udbx_close __P((void)); 1285 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1286 extern char *udbsender __P((char *, SM_RPOOL_T *)); 1287 #endif /* USERDB */ 1288 1289 /* 1290 ** LDAP related items 1291 */ 1292 #if LDAPMAP 1293 /* struct defining LDAP Auth Methods */ 1294 struct lamvalues 1295 { 1296 char *lam_name; /* name of LDAP auth method */ 1297 int lam_code; /* numeric code */ 1298 }; 1299 1300 /* struct defining LDAP Alias Dereferencing */ 1301 struct ladvalues 1302 { 1303 char *lad_name; /* name of LDAP alias dereferencing method */ 1304 int lad_code; /* numeric code */ 1305 }; 1306 1307 /* struct defining LDAP Search Scope */ 1308 struct lssvalues 1309 { 1310 char *lss_name; /* name of LDAP search scope */ 1311 int lss_code; /* numeric code */ 1312 }; 1313 1314 /* functions */ 1315 extern bool ldapmap_parseargs __P((MAP *, char *)); 1316 extern void ldapmap_set_defaults __P((char *)); 1317 #endif /* LDAPMAP */ 1318 1319 /* 1320 ** PH related items 1321 */ 1322 1323 #if PH_MAP 1324 1325 # include <phclient.h> 1326 1327 struct ph_map_struct 1328 { 1329 char *ph_servers; /* list of ph servers */ 1330 char *ph_field_list; /* list of fields to search for match */ 1331 PH *ph; /* PH server handle */ 1332 int ph_fastclose; /* send "quit" command on close */ 1333 time_t ph_timeout; /* timeout interval */ 1334 }; 1335 typedef struct ph_map_struct PH_MAP_STRUCT; 1336 1337 #endif /* PH_MAP */ 1338 1339 /* 1340 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1341 ** we are forced to declare a supertype here. 1342 */ 1343 1344 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1345 union bigsockaddr 1346 { 1347 struct sockaddr sa; /* general version */ 1348 # if NETUNIX 1349 struct sockaddr_un sunix; /* UNIX family */ 1350 # endif /* NETUNIX */ 1351 # if NETINET 1352 struct sockaddr_in sin; /* INET family */ 1353 # endif /* NETINET */ 1354 # if NETINET6 1355 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1356 # endif /* NETINET6 */ 1357 # if NETISO 1358 struct sockaddr_iso siso; /* ISO family */ 1359 # endif /* NETISO */ 1360 # if NETNS 1361 struct sockaddr_ns sns; /* XNS family */ 1362 # endif /* NETNS */ 1363 # if NETX25 1364 struct sockaddr_x25 sx25; /* X.25 family */ 1365 # endif /* NETX25 */ 1366 }; 1367 1368 # define SOCKADDR union bigsockaddr 1369 1370 /* functions */ 1371 extern char *anynet_ntoa __P((SOCKADDR *)); 1372 # if NETINET6 1373 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1374 extern int anynet_pton __P((int, const char *, void *)); 1375 # endif /* NETINET6 */ 1376 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1377 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1378 # if SASL >= 20000 1379 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1380 # endif /* SASL >= 20000 */ 1381 1382 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1383 1384 /* 1385 ** Process List (proclist) 1386 */ 1387 1388 #define NO_PID ((pid_t) 0) 1389 #ifndef PROC_LIST_SEG 1390 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1391 #endif /* ! PROC_LIST_SEG */ 1392 1393 /* process types */ 1394 #define PROC_NONE 0 1395 #define PROC_DAEMON 1 1396 #define PROC_DAEMON_CHILD 2 1397 #define PROC_QUEUE 3 1398 #define PROC_QUEUE_CHILD 3 1399 #define PROC_CONTROL 4 1400 #define PROC_CONTROL_CHILD 5 1401 1402 /* functions */ 1403 extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *)); 1404 extern void proc_list_clear __P((void)); 1405 extern void proc_list_display __P((SM_FILE_T *, char *)); 1406 extern void proc_list_drop __P((pid_t, int, int *)); 1407 extern void proc_list_probe __P((void)); 1408 extern void proc_list_set __P((pid_t, char *)); 1409 extern void proc_list_signal __P((int, int)); 1410 1411 /* 1412 ** Symbol table definitions 1413 */ 1414 1415 struct symtab 1416 { 1417 char *s_name; /* name to be entered */ 1418 short s_symtype; /* general type (see below) */ 1419 struct symtab *s_next; /* pointer to next in chain */ 1420 union 1421 { 1422 BITMAP256 sv_class; /* bit-map of word classes */ 1423 ADDRESS *sv_addr; /* pointer to address header */ 1424 MAILER *sv_mailer; /* pointer to mailer */ 1425 char *sv_alias; /* alias */ 1426 MAPCLASS sv_mapclass; /* mapping function class */ 1427 MAP sv_map; /* mapping function */ 1428 HOSTSIG_T sv_hostsig; /* host signature */ 1429 MCI sv_mci; /* mailer connection info */ 1430 NAMECANON sv_namecanon; /* canonical name cache */ 1431 int sv_macro; /* macro name => id mapping */ 1432 int sv_ruleset; /* ruleset index */ 1433 struct hdrinfo sv_header; /* header metainfo */ 1434 char *sv_service[MAXMAPSTACK]; /* service switch */ 1435 #if LDAPMAP 1436 MAP *sv_lmap; /* Maps for LDAP connection */ 1437 #endif /* LDAPMAP */ 1438 #if SOCKETMAP 1439 MAP *sv_socketmap; /* Maps for SOCKET connection */ 1440 #endif /* SOCKETMAP */ 1441 #if MILTER 1442 struct milter *sv_milter; /* milter filter name */ 1443 #endif /* MILTER */ 1444 QUEUEGRP *sv_queue; /* pointer to queue */ 1445 } s_value; 1446 }; 1447 1448 typedef struct symtab STAB; 1449 1450 /* symbol types */ 1451 #define ST_UNDEF 0 /* undefined type */ 1452 #define ST_CLASS 1 /* class map */ 1453 #define ST_ADDRESS 2 /* an address in parsed format */ 1454 #define ST_MAILER 3 /* a mailer header */ 1455 #define ST_ALIAS 4 /* an alias */ 1456 #define ST_MAPCLASS 5 /* mapping function class */ 1457 #define ST_MAP 6 /* mapping function */ 1458 #define ST_HOSTSIG 7 /* host signature */ 1459 #define ST_NAMECANON 8 /* cached canonical name */ 1460 #define ST_MACRO 9 /* macro name to id mapping */ 1461 #define ST_RULESET 10 /* ruleset index */ 1462 #define ST_SERVICE 11 /* service switch entry */ 1463 #define ST_HEADER 12 /* special header flags */ 1464 #if LDAPMAP 1465 # define ST_LMAP 13 /* List head of maps for LDAP connection */ 1466 #endif /* LDAPMAP */ 1467 #if MILTER 1468 # define ST_MILTER 14 /* milter filter */ 1469 #endif /* MILTER */ 1470 #define ST_QUEUE 15 /* a queue entry */ 1471 1472 #if SOCKETMAP 1473 # define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */ 1474 #endif /* SOCKETMAP */ 1475 1476 /* This entry must be last */ 1477 #define ST_MCI 17 /* mailer connection info (offset) */ 1478 1479 #define s_class s_value.sv_class 1480 #define s_address s_value.sv_addr 1481 #define s_mailer s_value.sv_mailer 1482 #define s_alias s_value.sv_alias 1483 #define s_mci s_value.sv_mci 1484 #define s_mapclass s_value.sv_mapclass 1485 #define s_hostsig s_value.sv_hostsig 1486 #define s_map s_value.sv_map 1487 #define s_namecanon s_value.sv_namecanon 1488 #define s_macro s_value.sv_macro 1489 #define s_ruleset s_value.sv_ruleset 1490 #define s_service s_value.sv_service 1491 #define s_header s_value.sv_header 1492 #if LDAPMAP 1493 # define s_lmap s_value.sv_lmap 1494 #endif /* LDAPMAP */ 1495 #if SOCKETMAP 1496 # define s_socketmap s_value.sv_socketmap 1497 #endif /* SOCKETMAP */ 1498 #if MILTER 1499 # define s_milter s_value.sv_milter 1500 #endif /* MILTER */ 1501 #define s_quegrp s_value.sv_queue 1502 1503 /* opcodes to stab */ 1504 #define ST_FIND 0 /* find entry */ 1505 #define ST_ENTER 1 /* enter if not there */ 1506 1507 /* functions */ 1508 extern STAB *stab __P((char *, int, int)); 1509 extern void stabapply __P((void (*)(STAB *, int), int)); 1510 1511 /* 1512 ** Operation, send, error, and MIME modes 1513 ** 1514 ** The operation mode describes the basic operation of sendmail. 1515 ** This can be set from the command line, and is "send mail" by 1516 ** default. 1517 ** 1518 ** The send mode tells how to send mail. It can be set in the 1519 ** configuration file. Its setting determines how quickly the 1520 ** mail will be delivered versus the load on your system. If the 1521 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 1522 ** mode. 1523 ** 1524 ** The error mode tells how to return errors. 1525 */ 1526 1527 #define MD_DELIVER 'm' /* be a mail sender */ 1528 #define MD_SMTP 's' /* run SMTP on standard input */ 1529 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1530 #define MD_DAEMON 'd' /* run as a daemon */ 1531 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 1532 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1533 #define MD_TEST 't' /* test mode: resolve addrs only */ 1534 #define MD_INITALIAS 'i' /* initialize alias database */ 1535 #define MD_PRINT 'p' /* print the queue */ 1536 #define MD_PRINTNQE 'P' /* print number of entries in queue */ 1537 #define MD_FREEZE 'z' /* freeze the configuration file */ 1538 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1539 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1540 #define MD_QUEUERUN 'q' /* queue run */ 1541 1542 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1543 1544 /* values for e_sendmode -- send modes */ 1545 #define SM_DELIVER 'i' /* interactive delivery */ 1546 #define SM_FORK 'b' /* deliver in background */ 1547 #define SM_QUEUE 'q' /* queue, don't deliver */ 1548 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 1549 #define SM_VERIFY 'v' /* verify only (used internally) */ 1550 #define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */ 1551 1552 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1553 1554 /* used only as a parameter to sendall */ 1555 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1556 1557 /* functions */ 1558 extern void set_delivery_mode __P((int, ENVELOPE *)); 1559 1560 /* values for e_errormode -- error handling modes */ 1561 #define EM_PRINT 'p' /* print errors */ 1562 #define EM_MAIL 'm' /* mail back errors */ 1563 #define EM_WRITE 'w' /* write back errors */ 1564 #define EM_BERKNET 'e' /* special berknet processing */ 1565 #define EM_QUIET 'q' /* don't print messages (stat only) */ 1566 1567 1568 /* bit values for MimeMode */ 1569 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1570 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1571 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1572 1573 1574 /* how to handle messages without any recipient addresses */ 1575 #define NRA_NO_ACTION 0 /* just leave it as is */ 1576 #define NRA_ADD_TO 1 /* add To: header */ 1577 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1578 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1579 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1580 1581 1582 /* flags to putxline */ 1583 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1584 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1585 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1586 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 1587 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1588 1589 /* 1590 ** Privacy flags 1591 ** These are bit values for the PrivacyFlags word. 1592 */ 1593 1594 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 1595 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1596 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1597 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1598 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1599 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1600 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1601 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1602 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1603 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1604 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1605 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1606 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1607 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1608 #if _FFR_PRIV_NOACTUALRECIPIENT 1609 # define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */ 1610 #endif /* _FFR_PRIV_NOACTUALRECIPIENT */ 1611 1612 /* don't give no info, anyway, anyhow */ 1613 #define PRIV_GOAWAY 0x0000ffff 1614 1615 /* struct defining such things */ 1616 struct prival 1617 { 1618 char *pv_name; /* name of privacy flag */ 1619 unsigned long pv_flag; /* numeric level */ 1620 }; 1621 1622 EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1623 1624 1625 /* 1626 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1627 */ 1628 1629 #define RF_SENDERADDR 0x001 /* this is a sender address */ 1630 #define RF_HEADERADDR 0x002 /* this is a header address */ 1631 #define RF_CANONICAL 0x004 /* strip comment information */ 1632 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1633 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1634 #define RF_COPYPADDR 0x020 /* copy print address */ 1635 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1636 #define RF_COPYNONE 0 1637 1638 /* 1639 ** Flags passed to rscheck 1640 */ 1641 1642 #define RSF_RMCOMM 0x0001 /* strip comments */ 1643 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1644 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1645 1646 /* 1647 ** Flags passed to mime8to7 and putheader. 1648 */ 1649 1650 #define M87F_OUTER 0 /* outer context */ 1651 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1652 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1653 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1654 1655 /* functions */ 1656 extern void mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1657 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int)); 1658 1659 /* 1660 ** Flags passed to returntosender. 1661 */ 1662 1663 #define RTSF_NO_BODY 0 /* send headers only */ 1664 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1665 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1666 1667 /* functions */ 1668 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1669 1670 /* 1671 ** Mail Filters (milter) 1672 */ 1673 1674 /* 1675 ** 32-bit type used by milter 1676 ** (needed by libmilter even if MILTER isn't defined) 1677 */ 1678 1679 typedef SM_INT32 mi_int32; 1680 1681 #if MILTER 1682 # define SMFTO_WRITE 0 /* Timeout for sending information */ 1683 # define SMFTO_READ 1 /* Timeout waiting for a response */ 1684 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1685 # define SMFTO_CONNECT 3 /* Timeout for connect() */ 1686 1687 # define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1688 1689 struct milter 1690 { 1691 char *mf_name; /* filter name */ 1692 BITMAP256 mf_flags; /* MTA flags */ 1693 mi_int32 mf_fvers; /* filter version */ 1694 mi_int32 mf_fflags; /* filter flags */ 1695 mi_int32 mf_pflags; /* protocol flags */ 1696 char *mf_conn; /* connection info */ 1697 int mf_sock; /* connected socket */ 1698 char mf_state; /* state of filter */ 1699 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1700 }; 1701 1702 /* MTA flags */ 1703 # define SMF_REJECT 'R' /* Reject connection on filter fail */ 1704 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1705 # define SMF_TEMPDROP '4' /* 421 connection on failure */ 1706 1707 /* states */ 1708 # define SMFS_CLOSED 'C' /* closed for all further actions */ 1709 # define SMFS_OPEN 'O' /* connected to remote milter filter */ 1710 # define SMFS_INMSG 'M' /* currently servicing a message */ 1711 # define SMFS_DONE 'D' /* done with current message */ 1712 # define SMFS_CLOSABLE 'Q' /* done with current connection */ 1713 # define SMFS_ERROR 'E' /* error state */ 1714 # define SMFS_READY 'R' /* ready for action */ 1715 1716 EXTERN struct milter *InputFilters[MAXFILTERS]; 1717 EXTERN char *InputFilterList; 1718 EXTERN int MilterLogLevel; 1719 1720 /* functions */ 1721 extern void setup_daemon_milters __P((void)); 1722 #endif /* MILTER */ 1723 1724 /* 1725 ** Vendor codes 1726 ** 1727 ** Vendors can customize sendmail to add special behaviour, 1728 ** generally for back compatibility. Ideally, this should 1729 ** be set up in the .cf file using the "V" command. However, 1730 ** it's quite reasonable for some vendors to want the default 1731 ** be their old version; this can be set using 1732 ** -DVENDOR_DEFAULT=VENDOR_xxx 1733 ** in the Makefile. 1734 ** 1735 ** Vendors should apply to sendmail@sendmail.org for 1736 ** unique vendor codes. 1737 */ 1738 1739 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1740 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1741 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1742 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1743 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1744 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1745 1746 /* prototypes for vendor-specific hook routines */ 1747 extern void vendor_daemon_setup __P((ENVELOPE *)); 1748 extern void vendor_set_uid __P((UID_T)); 1749 1750 1751 /* 1752 ** Terminal escape codes. 1753 ** 1754 ** To make debugging output clearer. 1755 */ 1756 1757 struct termescape 1758 { 1759 char *te_rv_on; /* turn reverse-video on */ 1760 char *te_rv_off; /* turn reverse-video off */ 1761 }; 1762 1763 /* 1764 ** Additional definitions 1765 */ 1766 1767 /* 1768 ** d_flags, see daemon.c 1769 ** general rule: lower case: required, upper case: No 1770 */ 1771 1772 #define D_AUTHREQ 'a' /* authentication required */ 1773 #define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1774 #define D_CANONREQ 'c' /* canonification required (cf) */ 1775 #define D_IFNHELO 'h' /* use if name for HELO */ 1776 #define D_FQMAIL 'f' /* fq sender address required (cf) */ 1777 #define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1778 #define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1779 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1780 #define D_NOAUTH 'A' /* no AUTH */ 1781 #define D_NOCANON 'C' /* no canonification (cf) */ 1782 #define D_NOETRN 'E' /* no ETRN (MSA) */ 1783 #define D_NOTLS 'S' /* don't use STARTTLS */ 1784 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1785 #define D_OPTIONAL 'O' /* optional socket */ 1786 #define D_DISABLE ((char)0x02) /* optional socket disabled */ 1787 #define D_ISSET ((char)0x03) /* this client struct is set */ 1788 1789 #if STARTTLS 1790 /* 1791 ** TLS 1792 */ 1793 1794 /* what to do in the TLS initialization */ 1795 #define TLS_I_NONE 0x00000000 /* no requirements... */ 1796 #define TLS_I_CERT_EX 0x00000001 /* cert must exist */ 1797 #define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */ 1798 #define TLS_I_KEY_EX 0x00000004 /* key must exist */ 1799 #define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */ 1800 #define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */ 1801 #define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */ 1802 #define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */ 1803 #define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */ 1804 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1805 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1806 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1807 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1808 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1809 #define TLS_I_CACHE 0x00002000 /* require cache */ 1810 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1811 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1812 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1813 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1814 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1815 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1816 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1817 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1818 #define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */ 1819 #define TLS_I_CRLF_EX 0x00800000 /* CRL file must exist */ 1820 #define TLS_I_CRLF_UNR 0x01000000 /* CRL file must be g/o unreadable */ 1821 1822 /* require server cert */ 1823 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1824 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1825 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1826 TLS_I_USE_KEY | TLS_I_USE_CERT) 1827 1828 /* server requirements */ 1829 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1830 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512) 1831 1832 /* client requirements */ 1833 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1834 1835 #define TLS_AUTH_OK 0 1836 #define TLS_AUTH_NO 1 1837 #define TLS_AUTH_FAIL (-1) 1838 1839 /* functions */ 1840 extern bool init_tls_library __P((void)); 1841 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1842 extern bool initclttls __P((bool)); 1843 extern void setclttls __P((bool)); 1844 extern bool initsrvtls __P((bool)); 1845 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1846 extern int endtls __P((SSL *, char *)); 1847 extern void tlslogerr __P((char *)); 1848 1849 1850 EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */ 1851 EXTERN char *CACertFile; /* file with CA certificate */ 1852 EXTERN char *CltCertFile; /* file with client certificate */ 1853 EXTERN char *CltKeyFile; /* file with client private key */ 1854 # if _FFR_TLS_1 1855 EXTERN char *CipherList; /* list of ciphers */ 1856 EXTERN char *DHParams5; /* file with DH parameters (512) */ 1857 # endif /* _FFR_TLS_1 */ 1858 EXTERN char *DHParams; /* file with DH parameters */ 1859 EXTERN char *RandFile; /* source of random data */ 1860 EXTERN char *SrvCertFile; /* file with server certificate */ 1861 EXTERN char *SrvKeyFile; /* file with server private key */ 1862 EXTERN char *CRLFile; /* file CRLs */ 1863 #if _FFR_CRLPATH 1864 EXTERN char *CRLPath; /* path to CRLs (dir. with hashes) */ 1865 #endif /* _FFR_CRLPATH */ 1866 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1867 #endif /* STARTTLS */ 1868 1869 /* 1870 ** Queue related items 1871 */ 1872 1873 /* queue file names */ 1874 #define ANYQFL_LETTER '?' 1875 #define QUARQF_LETTER 'h' 1876 #define DATAFL_LETTER 'd' 1877 #define XSCRPT_LETTER 'x' 1878 #define NORMQF_LETTER 'q' 1879 #define NEWQFL_LETTER 't' 1880 1881 # define TEMPQF_LETTER 'T' 1882 # define LOSEQF_LETTER 'Q' 1883 1884 /* queue sort order */ 1885 #define QSO_BYPRIORITY 0 /* sort by message priority */ 1886 #define QSO_BYHOST 1 /* sort by first host name */ 1887 #define QSO_BYTIME 2 /* sort by submission time */ 1888 #define QSO_BYFILENAME 3 /* sort by file name only */ 1889 #define QSO_RANDOM 4 /* sort in random order */ 1890 #define QSO_BYMODTIME 5 /* sort by modification time */ 1891 #define QSO_NONE 6 /* do not sort */ 1892 #if _FFR_RHS 1893 # define QSO_BYSHUFFLE 7 /* sort by shuffled host name */ 1894 #endif /* _FFR_RHS */ 1895 1896 #define NOQGRP (-1) /* no queue group (yet) */ 1897 #define ENVQGRP (-2) /* use queue group of envelope */ 1898 #define NOAQGRP (-3) /* no queue group in addr (yet) */ 1899 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1900 #define NOQDIR (-1) /* no queue directory (yet) */ 1901 #define ENVQDIR (-2) /* use queue directory of envelope */ 1902 #define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1903 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1904 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1905 1906 #define NOW ((time_t) (-1)) /* queue return: now */ 1907 1908 /* SuperSafe values */ 1909 #define SAFE_NO 0 /* no fsync(): don't use... */ 1910 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1911 #define SAFE_REALLY 2 /* always fsync() */ 1912 #define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */ 1913 1914 /* QueueMode bits */ 1915 #define QM_NORMAL ' ' 1916 #define QM_QUARANTINE 'Q' 1917 #define QM_LOST 'L' 1918 1919 /* Queue Run Limitations */ 1920 struct queue_char 1921 { 1922 char *queue_match; /* string to match */ 1923 bool queue_negate; /* or not match, if set */ 1924 struct queue_char *queue_next; 1925 }; 1926 1927 /* run_work_group() flags */ 1928 #define RWG_NONE 0x0000 1929 #define RWG_FORK 0x0001 1930 #define RWG_VERBOSE 0x0002 1931 #define RWG_PERSISTENT 0x0004 1932 #define RWG_FORCE 0x0008 1933 #define RWG_RUNALL 0x0010 1934 1935 typedef struct queue_char QUEUE_CHAR; 1936 1937 EXTERN int volatile CurRunners; /* current number of runner children */ 1938 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1939 EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1940 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1941 EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1942 EXTERN int NumQueue; /* number of queue groups */ 1943 EXTERN int QueueFileMode; /* mode on files in mail queue */ 1944 EXTERN int QueueMode; /* which queue items to act upon */ 1945 EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1946 EXTERN time_t MinQueueAge; /* min delivery interval */ 1947 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1948 EXTERN char *QueueDir; /* location of queue directory */ 1949 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1950 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1951 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1952 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1953 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1954 1955 /* functions */ 1956 extern void assign_queueid __P((ENVELOPE *)); 1957 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 1958 extern void cleanup_queues __P((void)); 1959 extern bool doqueuerun __P((void)); 1960 extern void initsys __P((ENVELOPE *)); 1961 extern void loseqfile __P((ENVELOPE *, char *)); 1962 extern int name2qid __P((char *)); 1963 extern char *qid_printname __P((ENVELOPE *)); 1964 extern char *qid_printqueue __P((int, int)); 1965 extern void quarantine_queue __P((char *, int)); 1966 extern char *queuename __P((ENVELOPE *, int)); 1967 extern void queueup __P((ENVELOPE *, bool, bool)); 1968 extern bool runqueue __P((bool, bool, bool, bool)); 1969 extern bool run_work_group __P((int, int)); 1970 extern void set_def_queueval __P((QUEUEGRP *, bool)); 1971 extern void setup_queues __P((bool)); 1972 extern bool setnewqueue __P((ENVELOPE *)); 1973 extern bool shouldqueue __P((long, time_t)); 1974 extern void sync_queue_time __P((void)); 1975 extern void init_qid_alg __P((void)); 1976 extern int print_single_queue __P((int, int)); 1977 #if REQUIRES_DIR_FSYNC 1978 # define SYNC_DIR(path, panic) sync_dir(path, panic) 1979 extern void sync_dir __P((char *, bool)); 1980 #else /* REQUIRES_DIR_FSYNC */ 1981 # define SYNC_DIR(path, panic) ((void) 0) 1982 #endif /* REQUIRES_DIR_FSYNC */ 1983 1984 /* 1985 ** Timeouts 1986 ** 1987 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 1988 */ 1989 1990 EXTERN struct 1991 { 1992 /* RFC 1123-specified timeouts [minimum value] */ 1993 time_t to_initial; /* initial greeting timeout [5m] */ 1994 time_t to_mail; /* MAIL command [5m] */ 1995 time_t to_rcpt; /* RCPT command [5m] */ 1996 time_t to_datainit; /* DATA initiation [2m] */ 1997 time_t to_datablock; /* DATA block [3m] */ 1998 time_t to_datafinal; /* DATA completion [10m] */ 1999 time_t to_nextcommand; /* next command [5m] */ 2000 /* following timeouts are not mentioned in RFC 1123 */ 2001 time_t to_iconnect; /* initial connection timeout (first try) */ 2002 time_t to_connect; /* initial connection timeout (later tries) */ 2003 time_t to_aconnect; /* all connections timeout (MX and A records) */ 2004 time_t to_rset; /* RSET command */ 2005 time_t to_helo; /* HELO command */ 2006 time_t to_quit; /* QUIT command */ 2007 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 2008 time_t to_ident; /* IDENT protocol requests */ 2009 time_t to_fileopen; /* opening :include: and .forward files */ 2010 time_t to_control; /* process a control socket command */ 2011 time_t to_lhlo; /* LMTP: LHLO command */ 2012 #if SASL 2013 time_t to_auth; /* AUTH dialogue [10m] */ 2014 #endif /* SASL */ 2015 #if STARTTLS 2016 time_t to_starttls; /* STARTTLS dialogue [10m] */ 2017 #endif /* STARTTLS */ 2018 /* following are per message */ 2019 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2020 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2021 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2022 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2023 } TimeOuts; 2024 2025 /* timeout classes for return and warning timeouts */ 2026 #define TOC_NORMAL 0 /* normal delivery */ 2027 #define TOC_URGENT 1 /* urgent delivery */ 2028 #define TOC_NONURGENT 2 /* non-urgent delivery */ 2029 #define TOC_DSN 3 /* DSN delivery */ 2030 2031 /* resolver timeout specifiers */ 2032 #define RES_TO_FIRST 0 /* first attempt */ 2033 #define RES_TO_NORMAL 1 /* subsequent attempts */ 2034 #define RES_TO_DEFAULT 2 /* default value */ 2035 2036 /* functions */ 2037 extern void inittimeouts __P((char *, bool)); 2038 2039 /* 2040 ** Interface probing 2041 */ 2042 2043 #define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2044 #define DPI_PROBEALL 1 /* Probe all interfaces */ 2045 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2046 2047 /* 2048 ** Trace information 2049 */ 2050 2051 /* macros for debugging flags */ 2052 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2053 #define tTdlevel(flag) (tTdvect[flag]) 2054 2055 /* variables */ 2056 extern unsigned char tTdvect[100]; /* trace vector */ 2057 2058 /* 2059 ** Miscellaneous information. 2060 */ 2061 2062 /* 2063 ** The "no queue id" queue id for sm_syslog 2064 */ 2065 2066 #define NOQID "*~*" 2067 2068 /* use id or NOQID (to avoid NOQUEUE in logfile) */ 2069 #define E_ID(id) ((id) == NULL ? NOQID : (id)) 2070 2071 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2072 2073 /* 2074 ** Some in-line functions 2075 */ 2076 2077 /* set exit status */ 2078 #define setstat(s) { \ 2079 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2080 ExitStat = s; \ 2081 } 2082 2083 2084 #define STRUCTCOPY(s, d) d = s 2085 2086 /* free a pointer if it isn't NULL and set it to NULL */ 2087 #define SM_FREE_CLR(p) \ 2088 if ((p) != NULL) \ 2089 { \ 2090 sm_free(p); \ 2091 (p) = NULL; \ 2092 } \ 2093 else 2094 2095 /* 2096 ** Update a permanent string variable with a new value. 2097 ** The old value is freed, the new value is strdup'ed. 2098 ** 2099 ** We use sm_pstrdup_x to duplicate the string because it raises 2100 ** an exception on error, and because it allocates "permanent storage" 2101 ** which is not expected to be freed before process exit. 2102 ** The latter is important for memory leak analysis. 2103 ** 2104 ** If an exception occurs while strdup'ing the new value, 2105 ** then the variable remains set to the old value. 2106 ** That's why the strdup must occur before we free the old value. 2107 ** 2108 ** The macro uses a do loop so that this idiom will work: 2109 ** if (...) 2110 ** PSTRSET(var, val1); 2111 ** else 2112 ** PSTRSET(var, val2); 2113 */ 2114 #define PSTRSET(var, val) \ 2115 do \ 2116 { \ 2117 char *_newval = sm_pstrdup_x(val); \ 2118 if (var != NULL) \ 2119 sm_free(var); \ 2120 var = _newval; \ 2121 } while (0) 2122 2123 #define _CHECK_RESTART \ 2124 do \ 2125 { \ 2126 if (ShutdownRequest != NULL) \ 2127 shutdown_daemon(); \ 2128 else if (RestartRequest != NULL) \ 2129 restart_daemon(); \ 2130 else if (RestartWorkGroup) \ 2131 restart_marked_work_groups(); \ 2132 } while (0) 2133 2134 # define CHECK_RESTART _CHECK_RESTART 2135 2136 /* reply types (text in SmtpMsgBuffer) */ 2137 #define XS_DEFAULT 0 2138 #define XS_STARTTLS 1 2139 #define XS_AUTH 2 2140 2141 /* 2142 ** Global variables. 2143 */ 2144 2145 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2146 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2147 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2148 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2149 EXTERN bool ConfigFileRead; /* configuration file has been read */ 2150 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2151 EXTERN bool volatile DataProgress; /* have we sent anything since last check */ 2152 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2153 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2154 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2155 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2156 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2157 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2158 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2159 EXTERN bool GrabTo; /* if set, get recipients from msg */ 2160 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2161 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2162 EXTERN bool HoldErrs; /* only output errors to transcript */ 2163 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2164 EXTERN bool IgnrDot; /* don't let dot end messages */ 2165 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2166 EXTERN bool MatchGecos; /* look for user names in gecos field */ 2167 EXTERN bool MeToo; /* send to the sender also */ 2168 EXTERN bool NoAlias; /* suppress aliasing */ 2169 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2170 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2171 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2172 #if REQUIRES_DIR_FSYNC 2173 EXTERN bool RequiresDirfsync; /* requires fsync() for directory */ 2174 #endif /* REQUIRES_DIR_FSYNC */ 2175 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2176 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2177 EXTERN bool SaveFrom; /* save leading "From" lines */ 2178 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2179 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2180 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2181 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2182 #if _FFR_SOFT_BOUNCE 2183 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2184 #endif /* _FFR_SOFT_BOUNCE */ 2185 EXTERN bool volatile StopRequest; /* stop sending output */ 2186 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2187 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2188 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2189 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2190 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2191 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2192 EXTERN char InetMode; /* default network for daemon mode */ 2193 EXTERN char OpMode; /* operation mode, see below */ 2194 EXTERN char SpaceSub; /* substitution for <lwsp> */ 2195 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2196 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2197 EXTERN int ConfigLevel; /* config file level */ 2198 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2199 EXTERN int volatile CurChildren; /* current number of daemonic children */ 2200 EXTERN int CurrentLA; /* current load average */ 2201 EXTERN int DefaultNotify; /* default DSN notification flags */ 2202 EXTERN int DelayLA; /* load average to delay connections */ 2203 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2204 EXTERN int Errors; /* set if errors (local to single pass) */ 2205 EXTERN int ExitStat; /* exit status code */ 2206 EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2207 EXTERN int FileMode; /* mode on files */ 2208 EXTERN int LineNumber; /* line number in current input */ 2209 EXTERN int LogLevel; /* level of logging to perform */ 2210 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2211 EXTERN int MaxChildren; /* maximum number of daemonic children */ 2212 EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2213 EXTERN int MaxHeadersLength; /* max length of headers */ 2214 EXTERN int MaxHopCount; /* max # of hops until bounce */ 2215 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2216 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2217 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2218 2219 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2220 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2221 EXTERN int MimeMode; /* MIME processing mode */ 2222 EXTERN int NoRecipientAction; 2223 2224 #if SM_CONF_SHM 2225 EXTERN int Numfilesys; /* number of queue file systems */ 2226 EXTERN int *PNumFileSys; 2227 # define NumFileSys (*PNumFileSys) 2228 # else /* SM_CONF_SHM */ 2229 EXTERN int NumFileSys; /* number of queue file systems */ 2230 # endif /* SM_CONF_SHM */ 2231 2232 EXTERN int QueueLA; /* load average starting forced queueing */ 2233 EXTERN int RefuseLA; /* load average refusing connections */ 2234 EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */ 2235 EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2236 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2237 EXTERN int Verbose; /* set if blow-by-blow desired */ 2238 EXTERN gid_t DefGid; /* default gid to run as */ 2239 EXTERN gid_t RealGid; /* real gid of caller */ 2240 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2241 EXTERN gid_t EffGid; /* effective gid */ 2242 #if SM_CONF_SHM 2243 EXTERN key_t ShmKey; /* shared memory key */ 2244 # if _FFR_SELECT_SHM 2245 EXTERN char *ShmKeyFile; /* shared memory key file */ 2246 # endif /* _FFR_SELECT_SHM */ 2247 #endif /* SM_CONF_SHM */ 2248 EXTERN pid_t CurrentPid; /* current process id */ 2249 EXTERN pid_t DaemonPid; /* process id of daemon */ 2250 EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */ 2251 EXTERN uid_t DefUid; /* default uid to run as */ 2252 EXTERN uid_t RealUid; /* real uid of caller */ 2253 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2254 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2255 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2256 EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2257 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2258 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2259 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2260 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2261 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2262 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2263 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2264 EXTERN long QueueFactor; /* slope of queue function */ 2265 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2266 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2267 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2268 EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2269 EXTERN char *CurHostName; /* current host we are dealing with */ 2270 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2271 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2272 EXTERN char *DefaultCharSet; /* default character set for MIME */ 2273 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2274 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2275 EXTERN char *FallbackMX; /* fall back MX host */ 2276 EXTERN char *FallbackSmartHost; /* fall back smart host */ 2277 EXTERN char *FileName; /* name to print on error messages */ 2278 EXTERN char *ForwardPath; /* path to search for .forward files */ 2279 #if _FFR_HELONAME 2280 EXTERN char *HeloName; /* hostname to announce in HELO */ 2281 #endif /* _FFR_HELONAME */ 2282 EXTERN char *HelpFile; /* location of SMTP help file */ 2283 EXTERN char *HostStatDir; /* location of host status information */ 2284 EXTERN char *HostsFile; /* path to /etc/hosts file */ 2285 extern char *Mbdb; /* mailbox database type */ 2286 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2287 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2288 EXTERN char *OperatorChars; /* operators (old $o macro) */ 2289 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2290 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2291 EXTERN char *ProcTitlePrefix; /* process title prefix */ 2292 EXTERN char *RealHostName; /* name of host we are talking to */ 2293 EXTERN char *RealUserName; /* real user name of caller */ 2294 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2295 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2296 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2297 EXTERN char *ServiceSwitchFile; /* backup service switch */ 2298 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2299 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2300 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2301 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2302 EXTERN char *StatFile; /* location of statistics summary */ 2303 EXTERN char *TimeZoneSpec; /* override time zone specification */ 2304 EXTERN char *UdbSpec; /* user database source spec */ 2305 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2306 EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2307 EXTERN char **SaveArgv; /* argument vector for re-execing */ 2308 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2309 EXTERN SM_FILE_T *InChannel; /* input connection */ 2310 EXTERN SM_FILE_T *OutChannel; /* output connection */ 2311 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2312 #if HESIOD 2313 EXTERN void *HesiodContext; 2314 #endif /* HESIOD */ 2315 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2316 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2317 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2318 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2319 EXTERN struct termescape TermEscape; /* terminal escape codes */ 2320 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2321 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2322 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2323 2324 2325 EXTERN int ConnectionRateWindowSize; 2326 2327 /* 2328 ** Declarations of useful functions 2329 */ 2330 2331 /* Transcript file */ 2332 extern void closexscript __P((ENVELOPE *)); 2333 extern void openxscript __P((ENVELOPE *)); 2334 2335 /* error related */ 2336 extern void buffer_errors __P((void)); 2337 extern void flush_errors __P((bool)); 2338 extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2339 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2340 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2341 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2342 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2343 extern int isenhsc __P((const char *, int)); 2344 extern int extenhsc __P((const char *, int, char *)); 2345 2346 /* alias file */ 2347 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2348 extern bool aliaswait __P((MAP *, char *, bool)); 2349 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2350 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2351 extern bool rebuildaliases __P((MAP *, bool)); 2352 extern void setalias __P((char *)); 2353 2354 /* logging */ 2355 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2356 extern void logsender __P((ENVELOPE *, char *)); 2357 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2358 2359 /* SMTP */ 2360 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2361 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int)); 2362 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2363 #if SASL 2364 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2365 #endif /* SASL */ 2366 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2367 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2368 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2369 extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2370 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2371 extern char *smtptodsn __P((int)); 2372 extern int smtpprobe __P((MCI *)); 2373 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2374 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2375 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2376 2377 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2378 isascii(c[1]) && isdigit(c[1]) && \ 2379 isascii(c[2]) && isdigit(c[2])) 2380 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2381 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2382 2383 /* delivery */ 2384 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2385 extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2386 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2387 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2388 extern void sendall __P((ENVELOPE *, int)); 2389 2390 /* stats */ 2391 #define STATS_NORMAL 'n' 2392 #define STATS_QUARANTINE 'q' 2393 #define STATS_REJECT 'r' 2394 #define STATS_CONNECT 'c' 2395 2396 extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2397 extern void clearstats __P((void)); 2398 extern void poststats __P((char *)); 2399 2400 /* control socket */ 2401 extern void closecontrolsocket __P((bool)); 2402 extern void clrcontrol __P((void)); 2403 extern void control_command __P((int, ENVELOPE *)); 2404 extern int opencontrolsocket __P((void)); 2405 2406 #if MILTER 2407 /* milter functions */ 2408 extern void milter_config __P((char *, struct milter **, int)); 2409 extern void milter_setup __P((char *)); 2410 extern void milter_set_option __P((char *, char *, bool)); 2411 extern bool milter_can_delrcpts __P((void)); 2412 extern bool milter_init __P((ENVELOPE *, char *)); 2413 extern void milter_quit __P((ENVELOPE *)); 2414 extern void milter_abort __P((ENVELOPE *)); 2415 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2416 extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2417 extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2418 extern char *milter_data_cmd __P((ENVELOPE *, char *)); 2419 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *)); 2420 extern char *milter_data __P((ENVELOPE *, char *)); 2421 extern char *milter_unknown __P((char *, ENVELOPE *, char *)); 2422 #endif /* MILTER */ 2423 2424 extern char *addquotes __P((char *, SM_RPOOL_T *)); 2425 extern char *arpadate __P((char *)); 2426 extern bool atobool __P((char *)); 2427 extern int atooct __P((char *)); 2428 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2429 extern int blocksignal __P((int)); 2430 extern bool bitintersect __P((BITMAP256, BITMAP256)); 2431 extern bool bitzerop __P((BITMAP256)); 2432 extern int check_bodytype __P((char *)); 2433 extern void buildfname __P((char *, char *, char *, int)); 2434 extern bool chkclientmodifiers __P((int)); 2435 extern bool chkdaemonmodifiers __P((int)); 2436 extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2437 #ifdef XDEBUG 2438 extern void checkfd012 __P((char *)); 2439 extern void checkfdopen __P((int, char *)); 2440 #endif /* XDEBUG */ 2441 extern void checkfds __P((char *)); 2442 extern bool chownsafe __P((int, bool)); 2443 extern void cleanstrcpy __P((char *, char *, int)); 2444 #if SM_CONF_SHM 2445 extern void cleanup_shm __P((bool)); 2446 #endif /* SM_CONF_SHM */ 2447 extern void close_sendmail_pid __P((void)); 2448 extern void clrdaemon __P((void)); 2449 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool)); 2450 extern bool connection_rate_check __P((SOCKADDR *, ENVELOPE *)); 2451 extern time_t convtime __P((char *, int)); 2452 extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2453 extern void copy_class __P((int, int)); 2454 extern int count_open_connections __P((SOCKADDR *)); 2455 extern time_t curtime __P((void)); 2456 extern char *defcharset __P((ENVELOPE *)); 2457 extern char *denlstring __P((char *, bool, bool)); 2458 extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *)); 2459 extern void disconnect __P((int, ENVELOPE *)); 2460 #if _FFR_CONTROL_MSTAT 2461 extern void disk_status __P((SM_FILE_T *, char *)); 2462 #endif /* _FFR_CONTROL_MSTAT */ 2463 extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2464 extern pid_t dofork __P((void)); 2465 extern int drop_privileges __P((bool)); 2466 extern int dsntoexitstat __P((char *)); 2467 extern void dumpfd __P((int, bool, bool)); 2468 extern void dumpstate __P((char *)); 2469 extern bool enoughdiskspace __P((long, ENVELOPE *)); 2470 extern char *exitstat __P((char *)); 2471 extern void fatal_error __P((SM_EXC_T *)); 2472 extern char *fgetfolded __P((char *, int, SM_FILE_T *)); 2473 extern void fill_fd __P((int, char *)); 2474 extern char *find_character __P((char *, int)); 2475 extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2476 extern void finis __P((bool, bool, volatile int)); 2477 extern void fixcrlf __P((char *, bool)); 2478 extern long freediskspace __P((char *, long *)); 2479 #if NETINET6 && NEEDSGETIPNODE 2480 extern void freehostent __P((struct hostent *)); 2481 #endif /* NETINET6 && NEEDSGETIPNODE */ 2482 extern char *get_column __P((char *, int, int, char *, int)); 2483 extern char *getauthinfo __P((int, bool *)); 2484 extern int getdtsize __P((void)); 2485 extern int getla __P((void)); 2486 extern char *getmodifiers __P((char *, BITMAP256)); 2487 extern BITMAP256 *getrequests __P((ENVELOPE *)); 2488 extern char *getvendor __P((int)); 2489 extern void help __P((char *, ENVELOPE *)); 2490 extern void init_md __P((int, char **)); 2491 extern void initdaemon __P((void)); 2492 extern void inithostmaps __P((void)); 2493 extern void initmacros __P((ENVELOPE *)); 2494 extern void initsetproctitle __P((int, char **, char **)); 2495 extern void init_vendor_macros __P((ENVELOPE *)); 2496 extern SIGFUNC_DECL intsig __P((int)); 2497 extern bool isloopback __P((SOCKADDR sa)); 2498 extern void load_if_names __P((void)); 2499 extern bool lockfile __P((int, char *, char *, int)); 2500 extern void log_sendmail_pid __P((ENVELOPE *)); 2501 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2502 extern char lower __P((int)); 2503 extern void makelower __P((char *)); 2504 extern int makeconnection_ds __P((char *, MCI *)); 2505 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2506 extern void makeworkgroups __P((void)); 2507 extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool)); 2508 extern void mark_work_group_restart __P((int, int)); 2509 extern char * munchstring __P((char *, char **, int)); 2510 extern struct hostent *myhostname __P((char *, int)); 2511 extern char *newstr __P((const char *)); 2512 #if NISPLUS 2513 extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2514 #endif /* NISPLUS */ 2515 extern bool path_is_dir __P((char *, bool)); 2516 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2517 extern char *pintvl __P((time_t, bool)); 2518 extern void printav __P((SM_FILE_T *, char **)); 2519 extern void printmailer __P((SM_FILE_T *, MAILER *)); 2520 extern void printnqe __P((SM_FILE_T *, char *)); 2521 extern void printopenfds __P((bool)); 2522 extern void printqueue __P((void)); 2523 extern void printrules __P((void)); 2524 extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2525 extern void putline __P((char *, MCI *)); 2526 extern void putxline __P((char *, size_t, MCI *, int)); 2527 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2528 extern void readcf __P((char *, bool, ENVELOPE *)); 2529 extern SIGFUNC_DECL reapchild __P((int)); 2530 extern int releasesignal __P((int)); 2531 extern void resetlimits __P((void)); 2532 extern void restart_daemon __P((void)); 2533 extern void restart_marked_work_groups __P((void)); 2534 extern bool rfc822_string __P((char *)); 2535 extern bool savemail __P((ENVELOPE *, bool)); 2536 extern void seed_random __P((void)); 2537 extern void sendtoargv __P((char **, ENVELOPE *)); 2538 extern void setclientoptions __P((char *)); 2539 extern bool setdaemonoptions __P((char *)); 2540 extern void setdefaults __P((ENVELOPE *)); 2541 extern void setdefuser __P((void)); 2542 extern bool setvendor __P((char *)); 2543 extern void set_op_mode __P((int)); 2544 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2545 extern sigfunc_t setsignal __P((int, sigfunc_t)); 2546 extern void setuserenv __P((const char *, const char *)); 2547 extern void settime __P((ENVELOPE *)); 2548 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2549 extern char *shortenstring __P((const char *, size_t)); 2550 extern char *shorten_hostname __P((char [])); 2551 extern bool shorten_rfc822_string __P((char *, size_t)); 2552 extern void shutdown_daemon __P((void)); 2553 extern void sm_closefrom __P((int lowest, int highest)); 2554 extern void sm_close_on_exec __P((int lowest, int highest)); 2555 extern struct hostent *sm_gethostbyname __P((char *, int)); 2556 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2557 extern void sm_getla __P((void)); 2558 extern struct passwd *sm_getpwnam __P((char *)); 2559 extern struct passwd *sm_getpwuid __P((UID_T)); 2560 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2561 extern pid_t sm_wait __P((int *)); 2562 extern bool split_by_recipient __P((ENVELOPE *e)); 2563 extern void stop_sendmail __P((void)); 2564 extern char *str2prt __P((char *)); 2565 extern void stripbackslash __P((char *)); 2566 extern bool strreplnonprt __P((char *, int)); 2567 extern bool strcontainedin __P((bool, char *, char *)); 2568 extern int switch_map_find __P((char *, char *[], short [])); 2569 extern bool transienterror __P((int)); 2570 #if _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI 2571 extern void truncate_at_delim __P((char *, size_t, int)); 2572 #endif /* _FFR_BESTMX_BETTER_TRUNCATION || _FFR_DNSMAP_MULTI */ 2573 extern void tTflag __P((char *)); 2574 extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2575 extern SIGFUNC_DECL tick __P((int)); 2576 extern char *ttypath __P((void)); 2577 extern void unlockqueue __P((ENVELOPE *)); 2578 #if !HASUNSETENV 2579 extern void unsetenv __P((char *)); 2580 #endif /* !HASUNSETENV */ 2581 2582 /* update file system information: +/- some blocks */ 2583 #if SM_CONF_SHM 2584 extern void upd_qs __P((ENVELOPE *, bool, bool, char *)); 2585 # define updfs(e, count, space, where) upd_qs(e, count, space, where) 2586 #else /* SM_CONF_SHM */ 2587 # define updfs(e, count, space, where) 2588 # define upd_qs(e, count, space, where) 2589 #endif /* SM_CONF_SHM */ 2590 2591 extern char *username __P((void)); 2592 extern bool usershellok __P((char *, char *)); 2593 extern void vendor_post_defaults __P((ENVELOPE *)); 2594 extern void vendor_pre_defaults __P((ENVELOPE *)); 2595 extern int waitfor __P((pid_t)); 2596 extern bool writable __P((char *, ADDRESS *, long)); 2597 #if SM_HEAP_CHECK 2598 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2599 extern char *xalloc_tagged __P((int, char*, int)); 2600 #else /* SM_HEAP_CHECK */ 2601 extern char *xalloc __P((int)); 2602 #endif /* SM_HEAP_CHECK */ 2603 extern void xputs __P((SM_FILE_T *, const char *)); 2604 extern char *xtextify __P((char *, char *)); 2605 extern bool xtextok __P((char *)); 2606 extern int xunlink __P((char *)); 2607 extern char *xuntextify __P((char *)); 2608 2609 2610 #endif /* ! _SENDMAIL_H */ 2611