1 /* 2 * Copyright (c) 1998-2008 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 8.1059 2008/02/15 23:19:58 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 #include <sm/misc.h> 76 77 #ifdef LOG 78 # include <syslog.h> 79 #endif /* LOG */ 80 81 82 83 # if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 84 # include <sys/socket.h> 85 # endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 86 # if NETUNIX 87 # include <sys/un.h> 88 # endif /* NETUNIX */ 89 # if NETINET || NETINET6 90 # include <netinet/in.h> 91 # endif /* NETINET || NETINET6 */ 92 # if NETINET6 93 /* 94 ** There is no standard yet for IPv6 includes. 95 ** Specify OS specific implementation in conf.h 96 */ 97 # endif /* NETINET6 */ 98 # if NETISO 99 # include <netiso/iso.h> 100 # endif /* NETISO */ 101 # if NETNS 102 # include <netns/ns.h> 103 # endif /* NETNS */ 104 # if NETX25 105 # include <netccitt/x25.h> 106 # endif /* NETX25 */ 107 108 # if NAMED_BIND 109 # include <arpa/nameser.h> 110 # ifdef NOERROR 111 # undef NOERROR /* avoid <sys/streams.h> conflict */ 112 # endif /* NOERROR */ 113 # include <resolv.h> 114 # else /* NAMED_BIND */ 115 # undef SM_SET_H_ERRNO 116 # define SM_SET_H_ERRNO(err) 117 # endif /* NAMED_BIND */ 118 119 # if HESIOD 120 # include <hesiod.h> 121 # if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 122 # define HESIOD_INIT /* support for the new interface */ 123 # endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 124 # endif /* HESIOD */ 125 126 #if STARTTLS 127 # include <openssl/ssl.h> 128 # if !TLS_NO_RSA 129 # define RSA_KEYLENGTH 512 130 # endif /* !TLS_NO_RSA */ 131 #endif /* STARTTLS */ 132 133 #if SASL /* include the sasl include files if we have them */ 134 135 136 # if SASL == 2 || SASL >= 20000 137 # include <sasl/sasl.h> 138 # include <sasl/saslutil.h> 139 # else /* SASL == 2 || SASL >= 20000 */ 140 # include <sasl.h> 141 # include <saslutil.h> 142 # endif /* SASL == 2 || SASL >= 20000 */ 143 # if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 144 # define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 145 # if SASL == 1 || SASL == 2 146 # undef SASL 147 # define SASL SASL_VERSION 148 # else /* SASL == 1 || SASL == 2 */ 149 # if SASL != SASL_VERSION 150 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 151 ERROR README: see README! 152 # endif /* SASL != SASL_VERSION */ 153 # endif /* SASL == 1 || SASL == 2 */ 154 # else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 155 # if SASL == 1 156 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 157 ERROR README: see README! 158 # endif /* SASL == 1 */ 159 # endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 160 #endif /* SASL */ 161 162 /* 163 ** Following are "sort of" configuration constants, but they should 164 ** be pretty solid on most architectures today. They have to be 165 ** defined after <arpa/nameser.h> because some versions of that 166 ** file also define them. In all cases, we can't use sizeof because 167 ** some systems (e.g., Crays) always treat everything as being at 168 ** least 64 bits. 169 */ 170 171 #ifndef INADDRSZ 172 # define INADDRSZ 4 /* size of an IPv4 address in bytes */ 173 #endif /* ! INADDRSZ */ 174 #ifndef IN6ADDRSZ 175 # define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 176 #endif /* ! IN6ADDRSZ */ 177 #ifndef INT16SZ 178 # define INT16SZ 2 /* size of a 16 bit integer in bytes */ 179 #endif /* ! INT16SZ */ 180 #ifndef INT32SZ 181 # define INT32SZ 4 /* size of a 32 bit integer in bytes */ 182 #endif /* ! INT32SZ */ 183 #ifndef INADDR_LOOPBACK 184 # define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 185 #endif /* ! INADDR_LOOPBACK */ 186 187 /* 188 ** Error return from inet_addr(3), in case not defined in /usr/include. 189 */ 190 191 #ifndef INADDR_NONE 192 # define INADDR_NONE 0xffffffff 193 #endif /* ! INADDR_NONE */ 194 195 196 /* (f)open() modes for queue files */ 197 # define QF_O_EXTRA 0 198 199 200 /* 201 ** An 'argument class' describes the storage allocation status 202 ** of an object pointed to by an argument to a function. 203 */ 204 205 typedef enum 206 { 207 A_HEAP, /* the storage was allocated by malloc, and the 208 * ownership of the storage is ceded by the caller 209 * to the called function. */ 210 A_TEMP, /* The storage is temporary, and is only guaranteed 211 * to be valid for the duration of the function call. */ 212 A_PERM /* The storage is 'permanent': this might mean static 213 * storage, or rpool storage. */ 214 } ARGCLASS_T; 215 216 /* forward references for prototypes */ 217 typedef struct envelope ENVELOPE; 218 typedef struct mailer MAILER; 219 typedef struct queuegrp QUEUEGRP; 220 221 /* 222 ** Address structure. 223 ** Addresses are stored internally in this structure. 224 */ 225 226 struct address 227 { 228 char *q_paddr; /* the printname for the address */ 229 char *q_user; /* user name */ 230 char *q_ruser; /* real user name, or NULL if q_user */ 231 char *q_host; /* host name */ 232 struct mailer *q_mailer; /* mailer to use */ 233 unsigned long q_flags; /* status flags, see below */ 234 uid_t q_uid; /* user-id of receiver (if known) */ 235 gid_t q_gid; /* group-id of receiver (if known) */ 236 char *q_home; /* home dir (local mailer only) */ 237 char *q_fullname; /* full name if known */ 238 struct address *q_next; /* chain */ 239 struct address *q_alias; /* address this results from */ 240 char *q_owner; /* owner of q_alias */ 241 struct address *q_tchain; /* temporary use chain */ 242 #if PIPELINING 243 struct address *q_pchain; /* chain for pipelining */ 244 #endif /* PIPELINING */ 245 char *q_finalrcpt; /* Final-Recipient: DSN header */ 246 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 247 char *q_status; /* status code for DSNs */ 248 char *q_rstatus; /* remote status message for DSNs */ 249 time_t q_statdate; /* date of status messages */ 250 char *q_statmta; /* MTA generating q_rstatus */ 251 short q_state; /* address state, see below */ 252 char *q_signature; /* MX-based sorting value */ 253 int q_qgrp; /* index into queue groups */ 254 int q_qdir; /* queue directory inside group */ 255 char *q_message; /* error message */ 256 }; 257 258 typedef struct address ADDRESS; 259 260 /* bit values for q_flags */ 261 #define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 262 #define QPRIMARY 0x00000002 /* set from RCPT or argv */ 263 #define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 264 #define QSELFREF 0x00000008 /* this address references itself */ 265 #define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 266 #define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 267 #define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 268 #define QPINGONFAILURE 0x00000080 /* give return on failure */ 269 #define QPINGONDELAY 0x00000100 /* give return on message delay */ 270 #define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 271 #define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 272 #define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 273 #define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 274 #define QDELAYED 0x00002000 /* DSN: message delayed */ 275 #define QALIAS 0x00004000 /* expanded alias */ 276 #define QBYTRACE 0x00008000 /* DeliverBy: trace */ 277 #define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 278 #define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 279 #define QTHISPASS 0x40000000 /* temp: address set this pass */ 280 #define QRCPTOK 0x80000000 /* recipient() processed address */ 281 282 #define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 283 284 /* values for q_state */ 285 #define QS_OK 0 /* address ok (for now)/not yet tried */ 286 #define QS_SENT 1 /* good address, delivery complete */ 287 #define QS_BADADDR 2 /* illegal address */ 288 #define QS_QUEUEUP 3 /* save address in queue */ 289 #define QS_RETRY 4 /* retry delivery for next MX */ 290 #define QS_VERIFIED 5 /* verified, but not expanded */ 291 292 /* 293 ** Notice: all of the following values are variations of QS_DONTSEND. 294 ** If new states are added, they must be inserted in the proper place! 295 ** See the macro definition of QS_IS_DEAD() down below. 296 */ 297 298 #define QS_DONTSEND 6 /* don't send to this address */ 299 #define QS_EXPANDED 7 /* expanded */ 300 #define QS_SENDER 8 /* message sender (MeToo) */ 301 #define QS_CLONED 9 /* addr cloned to split envelope */ 302 #define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 303 #define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 304 #define QS_REMOVED 12 /* removed (removefromlist()) */ 305 #define QS_DUPLICATE 13 /* duplicate suppressed */ 306 #define QS_INCLUDED 14 /* :include: delivery */ 307 #define QS_FATALERR 15 /* fatal error, don't deliver */ 308 309 /* address state testing primitives */ 310 #define QS_IS_OK(s) ((s) == QS_OK) 311 #define QS_IS_SENT(s) ((s) == QS_SENT) 312 #define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 313 #define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 314 #define QS_IS_RETRY(s) ((s) == QS_RETRY) 315 #define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 316 #define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 317 #define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 318 #define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 319 (s) == QS_QUEUEUP || \ 320 (s) == QS_RETRY || \ 321 (s) == QS_VERIFIED) 322 #define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 323 (s) == QS_RETRY) 324 #define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 325 (s) == QS_QUEUEUP || \ 326 (s) == QS_RETRY) 327 #define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 328 (s) == QS_RETRY || \ 329 (s) == QS_SENT || \ 330 (s) == QS_DISCARDED) 331 #define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 332 333 334 #define NULLADDR ((ADDRESS *) NULL) 335 336 extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 337 338 /* functions */ 339 extern void cataddr __P((char **, char **, char *, int, int, bool)); 340 extern char *crackaddr __P((char *, ENVELOPE *)); 341 extern bool emptyaddr __P((ADDRESS *)); 342 extern ADDRESS *getctladdr __P((ADDRESS *)); 343 extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 344 extern bool invalidaddr __P((char *, char *, bool)); 345 extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 346 ENVELOPE *, bool)); 347 extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool)); 348 extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool)); 349 extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 350 extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 351 extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 352 extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 353 extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 354 #if MILTER 355 extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 356 #endif /* MILTER */ 357 extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 358 typedef void esmtp_args_F __P((ADDRESS *, char *, char *, ENVELOPE *)); 359 extern void parse_esmtp_args __P((ENVELOPE *, ADDRESS *, char *, char *, 360 char *, char *args[], esmtp_args_F)); 361 extern esmtp_args_F mail_esmtp_args; 362 extern esmtp_args_F rcpt_esmtp_args; 363 extern void reset_mail_esmtp_args __P((ENVELOPE *)); 364 365 /* macro to simplify the common call to rewrite() */ 366 #define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 367 368 /* 369 ** Token Tables for prescan 370 */ 371 372 extern unsigned char ExtTokenTab[256]; /* external strings */ 373 extern unsigned char IntTokenTab[256]; /* internal strings */ 374 375 376 /* 377 ** Mailer definition structure. 378 ** Every mailer known to the system is declared in this 379 ** structure. It defines the pathname of the mailer, some 380 ** flags associated with it, and the argument vector to 381 ** pass to it. The flags are defined in conf.c 382 ** 383 ** The argument vector is expanded before actual use. All 384 ** words except the first are passed through the macro 385 ** processor. 386 */ 387 388 struct mailer 389 { 390 char *m_name; /* symbolic name of this mailer */ 391 char *m_mailer; /* pathname of the mailer to use */ 392 char *m_mtatype; /* type of this MTA */ 393 char *m_addrtype; /* type for addresses */ 394 char *m_diagtype; /* type for diagnostics */ 395 BITMAP256 m_flags; /* status flags, see below */ 396 short m_mno; /* mailer number internally */ 397 short m_nice; /* niceness to run at (mostly for prog) */ 398 char **m_argv; /* template argument vector */ 399 short m_sh_rwset; /* rewrite set: sender header addresses */ 400 short m_se_rwset; /* rewrite set: sender envelope addresses */ 401 short m_rh_rwset; /* rewrite set: recipient header addresses */ 402 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 403 char *m_eol; /* end of line string */ 404 long m_maxsize; /* size limit on message to this mailer */ 405 int m_linelimit; /* max # characters per line */ 406 int m_maxdeliveries; /* max deliveries per mailer connection */ 407 char *m_execdir; /* directory to chdir to before execv */ 408 char *m_rootdir; /* directory to chroot to before execv */ 409 uid_t m_uid; /* UID to run as */ 410 gid_t m_gid; /* GID to run as */ 411 char *m_defcharset; /* default character set */ 412 time_t m_wait; /* timeout to wait for end */ 413 int m_maxrcpt; /* max recipients per envelope client-side */ 414 short m_qgrp; /* queue group for this mailer */ 415 }; 416 417 /* bits for m_flags */ 418 #define M_ESMTP 'a' /* run Extended SMTP */ 419 #define M_ALIASABLE 'A' /* user can be LHS of an alias */ 420 #define M_BLANKEND 'b' /* ensure blank line at end of message */ 421 #define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */ 422 #define M_NOCOMMENT 'c' /* don't include comment part of address */ 423 #define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 424 #define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 425 /* 'D' CF: include Date: */ 426 #define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 427 #define M_ESCFROM 'E' /* escape From lines to >From */ 428 #define M_FOPT 'f' /* mailer takes picky -f flag */ 429 /* 'F' CF: include From: or Resent-From: */ 430 #define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 431 #define M_HST_UPPER 'h' /* preserve host case distinction */ 432 #define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 433 #define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 434 #define M_INTERNAL 'I' /* SMTP to another sendmail site */ 435 #define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 436 #define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 437 #define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 438 #define M_LOCALMAILER 'l' /* delivery is to this host */ 439 #define M_LIMITS 'L' /* must enforce SMTP line limits */ 440 #define M_MUSER 'm' /* can handle multiple users at once */ 441 /* 'M' CF: include Message-Id: */ 442 #define M_NHDR 'n' /* don't insert From line */ 443 #define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 444 #define M_RUNASRCPT 'o' /* always run mailer as recipient */ 445 #define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 446 /* 'P' CF: include Return-Path: */ 447 #define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 448 #define M_ROPT 'r' /* mailer takes picky -r flag */ 449 #define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 450 #define M_STRIPQ 's' /* strip quote chars from user/host */ 451 #define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 452 #define M_USR_UPPER 'u' /* preserve user case distinction */ 453 #define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 454 #define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 455 /* 'V' UIUC: !-relativize all addresses */ 456 #define M_HASPWENT 'w' /* check for /etc/passwd entry */ 457 #define M_NOHOSTSTAT 'W' /* ignore long term host status information */ 458 /* 'x' CF: include Full-Name: */ 459 #define M_XDOT 'X' /* use hidden-dot algorithm */ 460 #define M_LMTP 'z' /* run Local Mail Transport Protocol */ 461 #define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 462 #define M_NOMX '0' /* turn off MX lookups */ 463 #define M_NONULLS '1' /* don't send null bytes */ 464 #define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 465 #define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 466 #define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 467 #define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 468 #define M_7BITS '7' /* use 7-bit path */ 469 #define M_8BITS '8' /* force "just send 8" behaviour */ 470 #define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 471 #define M_CHECKINCLUDE ':' /* check for :include: files */ 472 #define M_CHECKPROG '|' /* check for |program addresses */ 473 #define M_CHECKFILE '/' /* check for /file addresses */ 474 #define M_CHECKUDB '@' /* user can be user database key */ 475 #define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 476 #define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 477 #define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 478 #define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 479 480 /* functions */ 481 extern void initerrmailers __P((void)); 482 extern void makemailer __P((char *)); 483 extern void makequeue __P((char *, bool)); 484 extern void runqueueevent __P((int)); 485 #if _FFR_QUEUE_RUN_PARANOIA 486 extern bool checkqueuerunner __P((void)); 487 #endif /* _FFR_QUEUE_RUN_PARANOIA */ 488 489 EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 490 EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 491 EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 492 EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 493 EXTERN MAILER *Mailer[MAXMAILERS + 1]; 494 495 /* 496 ** Queue group definition structure. 497 ** Every queue group known to the system is declared in this structure. 498 ** It defines the basic pathname of the queue group, some flags 499 ** associated with it, and the argument vector to pass to it. 500 */ 501 502 struct qpaths_s 503 { 504 char *qp_name; /* name of queue dir, relative path */ 505 short qp_subdirs; /* use subdirs? */ 506 short qp_fsysidx; /* file system index of this directory */ 507 # if SM_CONF_SHM 508 int qp_idx; /* index into array for queue information */ 509 # endif /* SM_CONF_SHM */ 510 }; 511 512 typedef struct qpaths_s QPATHS; 513 514 struct queuegrp 515 { 516 char *qg_name; /* symbolic name of this queue group */ 517 518 /* 519 ** For now this is the same across all queue groups. 520 ** Otherwise we have to play around with chdir(). 521 */ 522 523 char *qg_qdir; /* common component of queue directory */ 524 short qg_index; /* queue number internally, index in Queue[] */ 525 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 526 int qg_numqueues; /* number of queues in this queue */ 527 528 /* 529 ** qg_queueintvl == 0 denotes that no individual value is used. 530 ** Whatever accesses this must deal with "<= 0" as 531 ** "not set, use appropriate default". 532 */ 533 534 time_t qg_queueintvl; /* interval for queue runs */ 535 QPATHS *qg_qpaths; /* list of queue directories */ 536 BITMAP256 qg_flags; /* status flags, see below */ 537 short qg_nice; /* niceness for queue run */ 538 int qg_wgrp; /* Assigned to this work group */ 539 int qg_maxlist; /* max items in work queue for this group */ 540 int qg_curnum; /* current number of queue for queue runs */ 541 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 542 543 time_t qg_nextrun; /* time for next queue runs */ 544 #if _FFR_QUEUE_GROUP_SORTORDER 545 short qg_sortorder; /* how do we sort this queuerun */ 546 #endif /* _FFR_QUEUE_GROUP_SORTORDER */ 547 #if 0 548 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 549 long qg_qfactor; /* slope of queue function */ 550 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 551 #endif /* 0 */ 552 }; 553 554 /* bits for qg_flags (XXX: unused as of now) */ 555 #define QD_DEFINED ((char) 1) /* queue group has been defined */ 556 #define QD_FORK 'f' /* fork queue runs */ 557 558 extern void filesys_update __P((void)); 559 #if _FFR_ANY_FREE_FS 560 extern bool filesys_free __P((long)); 561 #endif /* _FFR_ANY_FREE_FS */ 562 563 #if SASL 564 /* 565 ** SASL 566 */ 567 568 /* lines in authinfo file or index into SASL_AI_T */ 569 # define SASL_WRONG (-1) 570 # define SASL_USER 0 /* authorization id (user) */ 571 # define SASL_AUTHID 1 /* authentication id */ 572 # define SASL_PASSWORD 2 /* password fuer authid */ 573 # define SASL_DEFREALM 3 /* realm to use */ 574 # define SASL_MECHLIST 4 /* list of mechanisms to try */ 575 # define SASL_ID_REALM 5 /* authid@defrealm */ 576 577 /* 578 ** Current mechanism; this is just used to convey information between 579 ** invocation of SASL callback functions. 580 ** It must be last in the list, because it's not allocated by us 581 ** and hence we don't free() it. 582 */ 583 # define SASL_MECH 6 584 # define SASL_ENTRIES 7 /* number of entries in array */ 585 586 # define SASL_USER_BIT (1 << SASL_USER) 587 # define SASL_AUTHID_BIT (1 << SASL_AUTHID) 588 # define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 589 # define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 590 # define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 591 592 /* authenticated? */ 593 # define SASL_NOT_AUTH 0 /* not authenticated */ 594 # define SASL_PROC_AUTH 1 /* in process of authenticating */ 595 # define SASL_IS_AUTH 2 /* authenticated */ 596 597 /* SASL options */ 598 # define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 599 # if SASL >= 20101 600 # define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 601 # else /* SASL >= 20101 */ 602 # define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 603 # if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 604 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 605 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 606 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 607 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 608 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 609 ERROR: change SASL_SEC_MASK_ notify sendmail.org! 610 # endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 611 # endif /* SASL >= 20101 */ 612 # define MAXOUTLEN 8192 /* length of output buffer */ 613 614 /* functions */ 615 extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 616 extern char *iteminlist __P((char *, char *, char *)); 617 # if SASL >= 20000 618 extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 619 extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 620 # else /* SASL >= 20000 */ 621 extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 622 # if SASL > 10515 623 extern int safesaslfile __P((void *, char *, int)); 624 # else /* SASL > 10515 */ 625 extern int safesaslfile __P((void *, char *)); 626 # endif /* SASL > 10515 */ 627 # endif /* SASL >= 20000 */ 628 extern void stop_sasl_client __P((void)); 629 630 /* structure to store authinfo */ 631 typedef char *SASL_AI_T[SASL_ENTRIES]; 632 633 EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 634 EXTERN char *AuthRealm; /* AUTH realm */ 635 EXTERN char *SASLInfo; /* file with AUTH info */ 636 EXTERN int SASLOpts; /* options for SASL */ 637 EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 638 #endif /* SASL */ 639 640 /* 641 ** Structure to store macros. 642 */ 643 typedef struct 644 { 645 SM_RPOOL_T *mac_rpool; /* resource pool */ 646 BITMAP256 mac_allocated; /* storage has been alloc()? */ 647 char *mac_table[MAXMACROID + 1]; /* macros */ 648 } MACROS_T; 649 650 EXTERN MACROS_T GlobalMacros; 651 652 /* 653 ** Information about currently open connections to mailers, or to 654 ** hosts that we have looked up recently. 655 */ 656 657 #define MCI struct mailer_con_info 658 659 MCI 660 { 661 unsigned long mci_flags; /* flag bits, see below */ 662 short mci_errno; /* error number on last connection */ 663 short mci_herrno; /* h_errno from last DNS lookup */ 664 short mci_exitstat; /* exit status from last connection */ 665 short mci_state; /* SMTP state */ 666 int mci_deliveries; /* delivery attempts for connection */ 667 long mci_maxsize; /* max size this server will accept */ 668 SM_FILE_T *mci_in; /* input side of connection */ 669 SM_FILE_T *mci_out; /* output side of connection */ 670 pid_t mci_pid; /* process id of subordinate proc */ 671 char *mci_phase; /* SMTP phase string */ 672 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 673 char *mci_host; /* host name */ 674 char *mci_status; /* DSN status to be copied to addrs */ 675 char *mci_rstatus; /* SMTP status to be copied to addrs */ 676 time_t mci_lastuse; /* last usage time */ 677 SM_FILE_T *mci_statfile; /* long term status file */ 678 char *mci_heloname; /* name to use as HELO arg */ 679 long mci_min_by; /* minimum DELIVERBY */ 680 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 681 char *mci_tolist; /* list of valid recipients */ 682 SM_RPOOL_T *mci_rpool; /* resource pool */ 683 #if PIPELINING 684 int mci_okrcpts; /* number of valid recipients */ 685 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 686 #endif /* PIPELINING */ 687 #if SASL 688 SASL_AI_T mci_sai; /* authentication info */ 689 bool mci_sasl_auth; /* authenticated? */ 690 int mci_sasl_string_len; 691 char *mci_sasl_string; /* sasl reply string */ 692 char *mci_saslcap; /* SASL list of mechanisms */ 693 sasl_conn_t *mci_conn; /* SASL connection */ 694 #endif /* SASL */ 695 #if STARTTLS 696 SSL *mci_ssl; /* SSL connection */ 697 #endif /* STARTTLS */ 698 MACROS_T mci_macro; /* macro definitions */ 699 }; 700 701 702 /* flag bits */ 703 #define MCIF_VALID 0x00000001 /* this entry is valid */ 704 /* 0x00000002 unused, was MCIF_TEMP */ 705 #define MCIF_CACHED 0x00000004 /* currently in open cache */ 706 #define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 707 #define MCIF_EXPN 0x00000010 /* EXPN command supported */ 708 #define MCIF_SIZE 0x00000020 /* SIZE option supported */ 709 #define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 710 #define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 711 /* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 712 #define MCIF_INHEADER 0x00000200 /* currently outputing header */ 713 #define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 714 #define MCIF_DSN 0x00000800 /* DSN extension supported */ 715 #define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 716 #define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 717 #define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 718 #define MCIF_AUTH 0x00008000 /* AUTH= supported */ 719 #define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 720 #define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 721 #define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 722 #define MCIF_VERB 0x00080000 /* VERB supported */ 723 #if STARTTLS 724 #define MCIF_TLS 0x00100000 /* STARTTLS supported */ 725 #define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 726 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS) 727 #else /* STARTTLS */ 728 #define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT) 729 #endif /* STARTTLS */ 730 #define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 731 #if _FFR_IGNORE_EXT_ON_HELO 732 # define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 733 #endif /* _FFR_IGNORE_EXT_ON_HELO */ 734 #define MCIF_INLONGLINE 0x01000000 /* in the middle of a long line */ 735 #define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 736 737 /* states */ 738 #define MCIS_CLOSED 0 /* no traffic on this connection */ 739 #define MCIS_OPENING 1 /* sending initial protocol */ 740 #define MCIS_OPEN 2 /* open, initial protocol sent */ 741 #define MCIS_MAIL 3 /* MAIL command sent */ 742 #define MCIS_RCPT 4 /* RCPT commands being sent */ 743 #define MCIS_DATA 5 /* DATA command sent */ 744 #define MCIS_QUITING 6 /* running quit protocol */ 745 #define MCIS_SSD 7 /* service shutting down */ 746 #define MCIS_ERROR 8 /* I/O error on connection */ 747 748 /* functions */ 749 extern void mci_cache __P((MCI *)); 750 extern void mci_close __P((MCI *, char *where)); 751 extern void mci_dump __P((SM_FILE_T *, MCI *, bool)); 752 extern void mci_dump_all __P((SM_FILE_T *, bool)); 753 extern void mci_flush __P((bool, MCI *)); 754 extern MCI *mci_get __P((char *, MAILER *)); 755 extern int mci_lock_host __P((MCI *)); 756 extern bool mci_match __P((char *, MAILER *)); 757 extern int mci_print_persistent __P((char *, char *)); 758 extern int mci_purge_persistent __P((char *, char *)); 759 extern MCI **mci_scan __P((MCI *)); 760 extern void mci_setstat __P((MCI *, int, char *, char *)); 761 extern void mci_store_persistent __P((MCI *)); 762 extern int mci_traverse_persistent __P((int (*)(char *, char *), char *)); 763 extern void mci_unlock_host __P((MCI *)); 764 765 EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 766 EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 767 EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 768 769 /* 770 ** Header structure. 771 ** This structure is used internally to store header items. 772 */ 773 774 struct header 775 { 776 char *h_field; /* the name of the field */ 777 char *h_value; /* the value of that field */ 778 struct header *h_link; /* the next header */ 779 unsigned char h_macro; /* include header if macro defined */ 780 unsigned long h_flags; /* status bits, see below */ 781 BITMAP256 h_mflags; /* m_flags bits needed */ 782 }; 783 784 typedef struct header HDR; 785 786 /* 787 ** Header information structure. 788 ** Defined in conf.c, this struct declares the header fields 789 ** that have some magic meaning. 790 */ 791 792 struct hdrinfo 793 { 794 char *hi_field; /* the name of the field */ 795 unsigned long hi_flags; /* status bits, see below */ 796 char *hi_ruleset; /* validity check ruleset */ 797 }; 798 799 extern struct hdrinfo HdrInfo[]; 800 801 /* bits for h_flags and hi_flags */ 802 #define H_EOH 0x00000001 /* field terminates header */ 803 #define H_RCPT 0x00000002 /* contains recipient addresses */ 804 #define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 805 #define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 806 #define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 807 #define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 808 #define H_FORCE 0x00000040 /* force this field, even if default */ 809 #define H_TRACE 0x00000080 /* this field contains trace information */ 810 #define H_FROM 0x00000100 /* this is a from-type field */ 811 #define H_VALID 0x00000200 /* this field has a validated value */ 812 #define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 813 #define H_ERRORSTO 0x00000800 /* field has error address info */ 814 #define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 815 #define H_CTYPE 0x00002000 /* this is a content-type field */ 816 #define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 817 #define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 818 #define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 819 #define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 820 #define H_USER 0x00040000 /* header came from the user/SMTP */ 821 822 /* bits for chompheader() */ 823 #define CHHDR_DEF 0x0001 /* default header */ 824 #define CHHDR_CHECK 0x0002 /* call ruleset for header */ 825 #define CHHDR_USER 0x0004 /* header from user */ 826 #define CHHDR_QUEUE 0x0008 /* header from queue file */ 827 828 /* functions */ 829 extern void addheader __P((char *, char *, int, ENVELOPE *, bool)); 830 extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 831 extern bool commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *, int)); 832 extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 833 extern void eatheader __P((ENVELOPE *, bool, bool)); 834 extern char *hvalue __P((char *, HDR *)); 835 extern void insheader __P((int, char *, char *, int, ENVELOPE *, bool)); 836 extern bool isheader __P((char *)); 837 extern bool putfromline __P((MCI *, ENVELOPE *)); 838 extern void setupheaders __P((void)); 839 840 /* 841 ** Performance monitoring 842 */ 843 844 #define TIMERS struct sm_timers 845 846 TIMERS 847 { 848 TIMER ti_overall; /* the whole process */ 849 }; 850 851 852 #define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 853 #define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 854 855 /* 856 ** Envelope structure. 857 ** This structure defines the message itself. There is usually 858 ** only one of these -- for the message that we originally read 859 ** and which is our primary interest -- but other envelopes can 860 ** be generated during processing. For example, error messages 861 ** will have their own envelope. 862 */ 863 864 struct envelope 865 { 866 HDR *e_header; /* head of header list */ 867 long e_msgpriority; /* adjusted priority of this message */ 868 time_t e_ctime; /* time message appeared in the queue */ 869 char *e_to; /* (list of) target person(s) */ 870 ADDRESS e_from; /* the person it is from */ 871 char *e_sender; /* e_from.q_paddr w comments stripped */ 872 char **e_fromdomain; /* the domain part of the sender */ 873 ADDRESS *e_sendqueue; /* list of message recipients */ 874 ADDRESS *e_errorqueue; /* the queue for error responses */ 875 876 /* 877 ** Overflow detection is based on < 0, so don't change this 878 ** to unsigned. We don't use unsigned and == ULONG_MAX because 879 ** some libc's don't have strtoul(), see mail_esmtp_args(). 880 */ 881 882 long e_msgsize; /* size of the message in bytes */ 883 char *e_msgid; /* message id (for logging) */ 884 unsigned long e_flags; /* flags, see below */ 885 int e_nrcpts; /* number of recipients */ 886 short e_class; /* msg class (priority, junk, etc.) */ 887 short e_hopcount; /* number of times processed */ 888 short e_nsent; /* number of sends since checkpoint */ 889 short e_sendmode; /* message send mode */ 890 short e_errormode; /* error return mode */ 891 short e_timeoutclass; /* message timeout class */ 892 bool (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 893 /* function to put header of message */ 894 bool (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 895 /* function to put body of message */ 896 ENVELOPE *e_parent; /* the message this one encloses */ 897 ENVELOPE *e_sibling; /* the next envelope of interest */ 898 char *e_bodytype; /* type of message body */ 899 SM_FILE_T *e_dfp; /* data file */ 900 char *e_id; /* code for this entry in queue */ 901 #if _FFR_SESSID 902 char *e_sessid; /* session ID for this envelope */ 903 #endif /* _FFR_SESSID */ 904 int e_qgrp; /* queue group (index into queues) */ 905 int e_qdir; /* index into queue directories */ 906 int e_dfqgrp; /* data file queue group index */ 907 int e_dfqdir; /* data file queue directory index */ 908 int e_xfqgrp; /* queue group (index into queues) */ 909 int e_xfqdir; /* index into queue directories (xf) */ 910 SM_FILE_T *e_xfp; /* transcript file */ 911 SM_FILE_T *e_lockfp; /* the lock file for this message */ 912 char *e_message; /* error message; readonly; NULL, 913 * or allocated from e_rpool */ 914 char *e_statmsg; /* stat msg (changes per delivery). 915 * readonly. NULL or allocated from 916 * e_rpool. */ 917 char *e_quarmsg; /* why envelope is quarantined */ 918 char e_qfletter; /* queue file letter on disk */ 919 char *e_msgboundary; /* MIME-style message part boundary */ 920 char *e_origrcpt; /* original recipient (one only) */ 921 char *e_envid; /* envelope id from MAIL FROM: line */ 922 char *e_status; /* DSN status for this message */ 923 time_t e_dtime; /* time of last delivery attempt */ 924 int e_ntries; /* number of delivery attempts */ 925 dev_t e_dfdev; /* data file device (crash recovery) */ 926 ino_t e_dfino; /* data file inode (crash recovery) */ 927 MACROS_T e_macro; /* macro definitions */ 928 MCI *e_mci; /* connection info */ 929 char *e_auth_param; /* readonly; NULL or static storage or 930 * allocated from e_rpool */ 931 TIMERS e_timers; /* per job timers */ 932 long e_deliver_by; /* deliver by */ 933 int e_dlvr_flag; /* deliver by flag */ 934 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 935 unsigned int e_features; /* server features */ 936 }; 937 938 /* values for e_flags */ 939 #define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 940 #define EF_INQUEUE 0x00000002L /* this message is fully queued */ 941 #define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 942 #define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 943 #define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 944 #define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 945 #define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 946 #define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 947 #define EF_RESENT 0x00000100L /* this message is being forwarded */ 948 #define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 949 #define EF_WARNING 0x00000400L /* warning message has been sent */ 950 #define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 951 #define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 952 #define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 953 #define EF_METOO 0x00004000L /* send to me too */ 954 #define EF_LOGSENDER 0x00008000L /* need to log the sender */ 955 #define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 956 #define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 957 #define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 958 #define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 959 #define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 960 #define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 961 #define EF_IS_MIME 0x00400000L /* really is a MIME message */ 962 #define EF_DONT_MIME 0x00800000L /* never MIME this message */ 963 #define EF_DISCARD 0x01000000L /* discard the message */ 964 #define EF_TOOBIG 0x02000000L /* message is too big */ 965 #define EF_SPLIT 0x04000000L /* envelope has been split */ 966 #define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 967 #define EF_TOODEEP 0x10000000L /* message is nested too deep */ 968 969 #define DLVR_NOTIFY 0x01 970 #define DLVR_RETURN 0x02 971 #define DLVR_TRACE 0x10 972 #define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 973 #define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 974 #define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 975 #define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 976 977 #define BODYTYPE_NONE (0) 978 #define BODYTYPE_7BIT (1) 979 #define BODYTYPE_8BITMIME (2) 980 #define BODYTYPE_ILLEGAL (-1) 981 #define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 982 983 extern ENVELOPE BlankEnvelope; 984 985 /* functions */ 986 extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 987 extern void dropenvelope __P((ENVELOPE *, bool, bool)); 988 extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 989 extern void clrsessenvelope __P((ENVELOPE *)); 990 extern void printenvflags __P((ENVELOPE *)); 991 extern bool putbody __P((MCI *, ENVELOPE *, char *)); 992 extern bool putheader __P((MCI *, HDR *, ENVELOPE *, int)); 993 994 /* 995 ** Message priority classes. 996 ** 997 ** The message class is read directly from the Priority: header 998 ** field in the message. 999 ** 1000 ** CurEnv->e_msgpriority is the number of bytes in the message plus 1001 ** the creation time (so that jobs ``tend'' to be ordered correctly), 1002 ** adjusted by the message class, the number of recipients, and the 1003 ** amount of time the message has been sitting around. This number 1004 ** is used to order the queue. Higher values mean LOWER priority. 1005 ** 1006 ** Each priority class point is worth WkClassFact priority points; 1007 ** each recipient is worth WkRecipFact priority points. Each time 1008 ** we reprocess a message the priority is adjusted by WkTimeFact. 1009 ** WkTimeFact should normally decrease the priority so that jobs 1010 ** that have historically failed will be run later; thanks go to 1011 ** Jay Lepreau at Utah for pointing out the error in my thinking. 1012 ** 1013 ** The "class" is this number, unadjusted by the age or size of 1014 ** this message. Classes with negative representations will have 1015 ** error messages thrown away if they are not local. 1016 */ 1017 1018 struct priority 1019 { 1020 char *pri_name; /* external name of priority */ 1021 int pri_val; /* internal value for same */ 1022 }; 1023 1024 EXTERN int NumPriorities; /* pointer into Priorities */ 1025 EXTERN struct priority Priorities[MAXPRIORITIES]; 1026 1027 /* 1028 ** Rewrite rules. 1029 */ 1030 1031 struct rewrite 1032 { 1033 char **r_lhs; /* pattern match */ 1034 char **r_rhs; /* substitution value */ 1035 struct rewrite *r_next;/* next in chain */ 1036 int r_line; /* rule line in sendmail.cf */ 1037 }; 1038 1039 /* 1040 ** Special characters in rewriting rules. 1041 ** These are used internally only. 1042 ** The COND* rules are actually used in macros rather than in 1043 ** rewriting rules, but are given here because they 1044 ** cannot conflict. 1045 */ 1046 1047 /* "out of band" indicator */ 1048 /* sm/sendmail.h #define METAQUOTE ((unsigned char)0377) quotes the next octet */ 1049 1050 /* left hand side items */ 1051 #define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1052 #define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1053 #define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1054 #define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1055 #define MATCHNCLASS ((unsigned char)0224) /* match tokens not in class */ 1056 1057 /* right hand side items */ 1058 #define MATCHREPL ((unsigned char)0225) /* RHS replacement for above */ 1059 #define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1060 #define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1061 #define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1062 #define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1063 1064 /* conditionals in macros (anywhere) */ 1065 #define CONDIF ((unsigned char)0232) /* conditional if-then */ 1066 #define CONDELSE ((unsigned char)0233) /* conditional else */ 1067 #define CONDFI ((unsigned char)0234) /* conditional fi */ 1068 1069 /* bracket characters for RHS host name lookup */ 1070 #define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1071 #define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1072 1073 /* bracket characters for RHS generalized lookup */ 1074 #define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1075 #define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1076 1077 /* macro substitution characters (anywhere) */ 1078 #define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1079 #define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1080 1081 /* to make the code clearer */ 1082 #define MATCHZERO CANONHOST 1083 1084 #define MAXMATCH 9 /* max params per rewrite */ 1085 #define MAX_MAP_ARGS 10 /* max arguments for map */ 1086 1087 /* external <==> internal mapping table */ 1088 struct metamac 1089 { 1090 char metaname; /* external code (after $) */ 1091 unsigned char metaval; /* internal code (as above) */ 1092 }; 1093 1094 /* values for macros with external names only */ 1095 #define MID_OPMODE 0202 /* operation mode */ 1096 1097 /* functions */ 1098 #if SM_HEAP_CHECK 1099 extern void 1100 macdefine_tagged __P(( 1101 MACROS_T *_mac, 1102 ARGCLASS_T _vclass, 1103 int _id, 1104 char *_value, 1105 char *_file, 1106 int _line, 1107 int _group)); 1108 # define macdefine(mac,c,id,v) \ 1109 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1110 #else /* SM_HEAP_CHECK */ 1111 extern void 1112 macdefine __P(( 1113 MACROS_T *_mac, 1114 ARGCLASS_T _vclass, 1115 int _id, 1116 char *_value)); 1117 # define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1118 #endif /* SM_HEAP_CHECK */ 1119 extern void macset __P((MACROS_T *, int, char *)); 1120 #define macget(mac, i) (mac)->mac_table[i] 1121 extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1122 extern int macid_parse __P((char *, char **)); 1123 #define macid(name) macid_parse(name, NULL) 1124 extern char *macname __P((int)); 1125 extern char *macvalue __P((int, ENVELOPE *)); 1126 extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *, ADDRESS *)); 1127 extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1128 extern void setclass __P((int, char *)); 1129 extern int strtorwset __P((char *, char **, int)); 1130 extern char *translate_dollars __P((char *, char *, int *)); 1131 extern bool wordinclass __P((char *, int)); 1132 1133 /* 1134 ** Name canonification short circuit. 1135 ** 1136 ** If the name server for a host is down, the process of trying to 1137 ** canonify the name can hang. This is similar to (but alas, not 1138 ** identical to) looking up the name for delivery. This stab type 1139 ** caches the result of the name server lookup so we don't hang 1140 ** multiple times. 1141 */ 1142 1143 #define NAMECANON struct _namecanon 1144 1145 NAMECANON 1146 { 1147 short nc_errno; /* cached errno */ 1148 short nc_herrno; /* cached h_errno */ 1149 short nc_stat; /* cached exit status code */ 1150 short nc_flags; /* flag bits */ 1151 char *nc_cname; /* the canonical name */ 1152 time_t nc_exp; /* entry expires at */ 1153 }; 1154 1155 /* values for nc_flags */ 1156 #define NCF_VALID 0x0001 /* entry valid */ 1157 1158 /* hostsignature structure */ 1159 1160 struct hostsig_t 1161 { 1162 char *hs_sig; /* hostsignature */ 1163 time_t hs_exp; /* entry expires at */ 1164 }; 1165 1166 typedef struct hostsig_t HOSTSIG_T; 1167 1168 /* functions */ 1169 extern bool getcanonname __P((char *, int, bool, int *)); 1170 extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1171 extern char *hostsignature __P((MAILER *, char *)); 1172 extern int getfallbackmxrr __P((char *)); 1173 1174 /* 1175 ** Mapping functions 1176 ** 1177 ** These allow arbitrary mappings in the config file. The idea 1178 ** (albeit not the implementation) comes from IDA sendmail. 1179 */ 1180 1181 #define MAPCLASS struct _mapclass 1182 #define MAP struct _map 1183 #define MAXMAPACTIONS 5 /* size of map_actions array */ 1184 1185 1186 /* 1187 ** An actual map. 1188 */ 1189 1190 MAP 1191 { 1192 MAPCLASS *map_class; /* the class of this map */ 1193 MAPCLASS *map_orgclass; /* the original class of this map */ 1194 char *map_mname; /* name of this map */ 1195 long map_mflags; /* flags, see below */ 1196 char *map_file; /* the (nominal) filename */ 1197 ARBPTR_T map_db1; /* the open database ptr */ 1198 ARBPTR_T map_db2; /* an "extra" database pointer */ 1199 char *map_keycolnm; /* key column name */ 1200 char *map_valcolnm; /* value column name */ 1201 unsigned char map_keycolno; /* key column number */ 1202 unsigned char map_valcolno; /* value column number */ 1203 char map_coldelim; /* column delimiter */ 1204 char map_spacesub; /* spacesub */ 1205 char *map_app; /* to append to successful matches */ 1206 char *map_tapp; /* to append to "tempfail" matches */ 1207 char *map_domain; /* the (nominal) NIS domain */ 1208 char *map_rebuild; /* program to run to do auto-rebuild */ 1209 time_t map_mtime; /* last database modification time */ 1210 time_t map_timeout; /* timeout for map accesses */ 1211 int map_retry; /* # of retries for map accesses */ 1212 pid_t map_pid; /* PID of process which opened map */ 1213 int map_lockfd; /* auxiliary lock file descriptor */ 1214 short map_specificity; /* specificity of aliases */ 1215 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1216 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1217 }; 1218 1219 1220 /* bit values for map_mflags */ 1221 #define MF_VALID 0x00000001 /* this entry is valid */ 1222 #define MF_INCLNULL 0x00000002 /* include null byte in key */ 1223 #define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1224 #define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1225 #define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1226 #define MF_OPEN 0x00000020 /* this entry is open */ 1227 #define MF_WRITABLE 0x00000040 /* open for writing */ 1228 #define MF_ALIAS 0x00000080 /* this is an alias file */ 1229 #define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1230 #define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1231 #define MF_LOCKED 0x00000400 /* this map is currently locked */ 1232 #define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1233 #define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1234 #define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1235 /* 0x00004000 */ 1236 #define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1237 #define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1238 #define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1239 #define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1240 #define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1241 #define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1242 #define MF_SINGLEDN 0x00200000 /* only one match, but multi values */ 1243 #define MF_FILECLASS 0x00400000 /* this is a file class map */ 1244 #define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1245 #define MF_CLOSING 0x01000000 /* map is being closed */ 1246 1247 #define DYNOPENMAP(map) if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1248 { \ 1249 if (!openmap(map)) \ 1250 return NULL; \ 1251 } 1252 1253 1254 /* indices for map_actions */ 1255 #define MA_NOTFOUND 0 /* member map returned "not found" */ 1256 #define MA_UNAVAIL 1 /* member map is not available */ 1257 #define MA_TRYAGAIN 2 /* member map returns temp failure */ 1258 1259 /* macros to handle MapTempFail */ 1260 #define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1261 #define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1262 #define RESET_MAPTEMPFAIL MapTempFail = 0 1263 #define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1264 #define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1265 #define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1266 #define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1267 1268 /* 1269 ** The class of a map -- essentially the functions to call 1270 */ 1271 1272 MAPCLASS 1273 { 1274 char *map_cname; /* name of this map class */ 1275 char *map_ext; /* extension for database file */ 1276 short map_cflags; /* flag bits, see below */ 1277 bool (*map_parse)__P((MAP *, char *)); 1278 /* argument parsing function */ 1279 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1280 /* lookup function */ 1281 void (*map_store)__P((MAP *, char *, char *)); 1282 /* store function */ 1283 bool (*map_open)__P((MAP *, int)); 1284 /* open function */ 1285 void (*map_close)__P((MAP *)); 1286 /* close function */ 1287 }; 1288 1289 /* bit values for map_cflags */ 1290 #define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1291 #define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1292 #define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1293 #define MCF_OPTFILE 0x0008 /* file name is optional */ 1294 #define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1295 1296 /* functions */ 1297 extern void closemaps __P((bool)); 1298 extern bool impl_map_open __P((MAP *, int)); 1299 extern void initmaps __P((void)); 1300 extern MAP *makemapentry __P((char *)); 1301 extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1302 extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1303 #if NETINFO 1304 extern char *ni_propval __P((char *, char *, char *, char *, int)); 1305 #endif /* NETINFO */ 1306 extern bool openmap __P((MAP *)); 1307 extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1308 #if USERDB 1309 extern void _udbx_close __P((void)); 1310 extern char *udbsender __P((char *, SM_RPOOL_T *)); 1311 #endif /* USERDB */ 1312 1313 /* 1314 ** LDAP related items 1315 */ 1316 #if LDAPMAP 1317 /* struct defining LDAP Auth Methods */ 1318 struct lamvalues 1319 { 1320 char *lam_name; /* name of LDAP auth method */ 1321 int lam_code; /* numeric code */ 1322 }; 1323 1324 /* struct defining LDAP Alias Dereferencing */ 1325 struct ladvalues 1326 { 1327 char *lad_name; /* name of LDAP alias dereferencing method */ 1328 int lad_code; /* numeric code */ 1329 }; 1330 1331 /* struct defining LDAP Search Scope */ 1332 struct lssvalues 1333 { 1334 char *lss_name; /* name of LDAP search scope */ 1335 int lss_code; /* numeric code */ 1336 }; 1337 1338 /* functions */ 1339 extern bool ldapmap_parseargs __P((MAP *, char *)); 1340 extern void ldapmap_set_defaults __P((char *)); 1341 #endif /* LDAPMAP */ 1342 1343 /* 1344 ** PH related items 1345 */ 1346 1347 #if PH_MAP 1348 1349 # include <phclient.h> 1350 1351 struct ph_map_struct 1352 { 1353 char *ph_servers; /* list of ph servers */ 1354 char *ph_field_list; /* list of fields to search for match */ 1355 PH *ph; /* PH server handle */ 1356 int ph_fastclose; /* send "quit" command on close */ 1357 time_t ph_timeout; /* timeout interval */ 1358 }; 1359 typedef struct ph_map_struct PH_MAP_STRUCT; 1360 1361 #endif /* PH_MAP */ 1362 1363 /* 1364 ** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1365 ** we are forced to declare a supertype here. 1366 */ 1367 1368 #if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1369 union bigsockaddr 1370 { 1371 struct sockaddr sa; /* general version */ 1372 # if NETUNIX 1373 struct sockaddr_un sunix; /* UNIX family */ 1374 # endif /* NETUNIX */ 1375 # if NETINET 1376 struct sockaddr_in sin; /* INET family */ 1377 # endif /* NETINET */ 1378 # if NETINET6 1379 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1380 # endif /* NETINET6 */ 1381 # if NETISO 1382 struct sockaddr_iso siso; /* ISO family */ 1383 # endif /* NETISO */ 1384 # if NETNS 1385 struct sockaddr_ns sns; /* XNS family */ 1386 # endif /* NETNS */ 1387 # if NETX25 1388 struct sockaddr_x25 sx25; /* X.25 family */ 1389 # endif /* NETX25 */ 1390 }; 1391 1392 # define SOCKADDR union bigsockaddr 1393 1394 /* functions */ 1395 extern char *anynet_ntoa __P((SOCKADDR *)); 1396 # if NETINET6 1397 extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1398 extern int anynet_pton __P((int, const char *, void *)); 1399 # endif /* NETINET6 */ 1400 extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1401 extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1402 # if SASL >= 20000 1403 extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1404 # endif /* SASL >= 20000 */ 1405 1406 #endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1407 1408 /* 1409 ** Process List (proclist) 1410 */ 1411 1412 #define NO_PID ((pid_t) 0) 1413 #ifndef PROC_LIST_SEG 1414 # define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1415 #endif /* ! PROC_LIST_SEG */ 1416 1417 /* process types */ 1418 #define PROC_NONE 0 1419 #define PROC_DAEMON 1 1420 #define PROC_DAEMON_CHILD 2 1421 #define PROC_QUEUE 3 1422 #define PROC_QUEUE_CHILD 3 1423 #define PROC_CONTROL 4 1424 #define PROC_CONTROL_CHILD 5 1425 1426 /* functions */ 1427 extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *)); 1428 extern void proc_list_clear __P((void)); 1429 extern void proc_list_display __P((SM_FILE_T *, char *)); 1430 extern void proc_list_drop __P((pid_t, int, int *)); 1431 extern void proc_list_probe __P((void)); 1432 extern void proc_list_set __P((pid_t, char *)); 1433 extern void proc_list_signal __P((int, int)); 1434 1435 /* 1436 ** Symbol table definitions 1437 */ 1438 1439 struct symtab 1440 { 1441 char *s_name; /* name to be entered */ 1442 short s_symtype; /* general type (see below) */ 1443 struct symtab *s_next; /* pointer to next in chain */ 1444 union 1445 { 1446 BITMAP256 sv_class; /* bit-map of word classes */ 1447 ADDRESS *sv_addr; /* pointer to address header */ 1448 MAILER *sv_mailer; /* pointer to mailer */ 1449 char *sv_alias; /* alias */ 1450 MAPCLASS sv_mapclass; /* mapping function class */ 1451 MAP sv_map; /* mapping function */ 1452 HOSTSIG_T sv_hostsig; /* host signature */ 1453 MCI sv_mci; /* mailer connection info */ 1454 NAMECANON sv_namecanon; /* canonical name cache */ 1455 int sv_macro; /* macro name => id mapping */ 1456 int sv_ruleset; /* ruleset index */ 1457 struct hdrinfo sv_header; /* header metainfo */ 1458 char *sv_service[MAXMAPSTACK]; /* service switch */ 1459 #if LDAPMAP 1460 MAP *sv_lmap; /* Maps for LDAP connection */ 1461 #endif /* LDAPMAP */ 1462 #if SOCKETMAP 1463 MAP *sv_socketmap; /* Maps for SOCKET connection */ 1464 #endif /* SOCKETMAP */ 1465 #if MILTER 1466 struct milter *sv_milter; /* milter filter name */ 1467 #endif /* MILTER */ 1468 QUEUEGRP *sv_queue; /* pointer to queue */ 1469 } s_value; 1470 }; 1471 1472 typedef struct symtab STAB; 1473 1474 /* symbol types */ 1475 #define ST_UNDEF 0 /* undefined type */ 1476 #define ST_CLASS 1 /* class map */ 1477 #define ST_ADDRESS 2 /* an address in parsed format */ 1478 #define ST_MAILER 3 /* a mailer header */ 1479 #define ST_ALIAS 4 /* an alias */ 1480 #define ST_MAPCLASS 5 /* mapping function class */ 1481 #define ST_MAP 6 /* mapping function */ 1482 #define ST_HOSTSIG 7 /* host signature */ 1483 #define ST_NAMECANON 8 /* cached canonical name */ 1484 #define ST_MACRO 9 /* macro name to id mapping */ 1485 #define ST_RULESET 10 /* ruleset index */ 1486 #define ST_SERVICE 11 /* service switch entry */ 1487 #define ST_HEADER 12 /* special header flags */ 1488 #if LDAPMAP 1489 # define ST_LMAP 13 /* List head of maps for LDAP connection */ 1490 #endif /* LDAPMAP */ 1491 #if MILTER 1492 # define ST_MILTER 14 /* milter filter */ 1493 #endif /* MILTER */ 1494 #define ST_QUEUE 15 /* a queue entry */ 1495 1496 #if SOCKETMAP 1497 # define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */ 1498 #endif /* SOCKETMAP */ 1499 1500 /* This entry must be last */ 1501 #define ST_MCI 17 /* mailer connection info (offset) */ 1502 1503 #define s_class s_value.sv_class 1504 #define s_address s_value.sv_addr 1505 #define s_mailer s_value.sv_mailer 1506 #define s_alias s_value.sv_alias 1507 #define s_mci s_value.sv_mci 1508 #define s_mapclass s_value.sv_mapclass 1509 #define s_hostsig s_value.sv_hostsig 1510 #define s_map s_value.sv_map 1511 #define s_namecanon s_value.sv_namecanon 1512 #define s_macro s_value.sv_macro 1513 #define s_ruleset s_value.sv_ruleset 1514 #define s_service s_value.sv_service 1515 #define s_header s_value.sv_header 1516 #if LDAPMAP 1517 # define s_lmap s_value.sv_lmap 1518 #endif /* LDAPMAP */ 1519 #if SOCKETMAP 1520 # define s_socketmap s_value.sv_socketmap 1521 #endif /* SOCKETMAP */ 1522 #if MILTER 1523 # define s_milter s_value.sv_milter 1524 #endif /* MILTER */ 1525 #define s_quegrp s_value.sv_queue 1526 1527 /* opcodes to stab */ 1528 #define ST_FIND 0 /* find entry */ 1529 #define ST_ENTER 1 /* enter if not there */ 1530 1531 /* functions */ 1532 extern STAB *stab __P((char *, int, int)); 1533 extern void stabapply __P((void (*)(STAB *, int), int)); 1534 1535 /* 1536 ** Operation, send, error, and MIME modes 1537 ** 1538 ** The operation mode describes the basic operation of sendmail. 1539 ** This can be set from the command line, and is "send mail" by 1540 ** default. 1541 ** 1542 ** The send mode tells how to send mail. It can be set in the 1543 ** configuration file. Its setting determines how quickly the 1544 ** mail will be delivered versus the load on your system. If the 1545 ** -v (verbose) flag is given, it will be forced to SM_DELIVER 1546 ** mode. 1547 ** 1548 ** The error mode tells how to return errors. 1549 */ 1550 1551 #define MD_DELIVER 'm' /* be a mail sender */ 1552 #define MD_SMTP 's' /* run SMTP on standard input */ 1553 #define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1554 #define MD_DAEMON 'd' /* run as a daemon */ 1555 #define MD_FGDAEMON 'D' /* run daemon in foreground */ 1556 #define MD_LOCAL 'l' /* like daemon, but localhost only */ 1557 #define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1558 #define MD_TEST 't' /* test mode: resolve addrs only */ 1559 #define MD_INITALIAS 'i' /* initialize alias database */ 1560 #define MD_PRINT 'p' /* print the queue */ 1561 #define MD_PRINTNQE 'P' /* print number of entries in queue */ 1562 #define MD_FREEZE 'z' /* freeze the configuration file */ 1563 #define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1564 #define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1565 #define MD_QUEUERUN 'q' /* queue run */ 1566 1567 #if _FFR_LOCAL_DAEMON 1568 EXTERN bool LocalDaemon; 1569 #else /* _FFR_LOCAL_DAEMON */ 1570 # define LocalDaemon false 1571 #endif /* _FFR_LOCAL_DAEMON */ 1572 1573 /* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1574 1575 /* values for e_sendmode -- send modes */ 1576 #define SM_DELIVER 'i' /* interactive delivery */ 1577 #define SM_FORK 'b' /* deliver in background */ 1578 #if _FFR_DM_ONE 1579 #define SM_DM_ONE 'o' /* deliver first TA in background, then queue */ 1580 #endif /* _FFR_DM_ONE */ 1581 #define SM_QUEUE 'q' /* queue, don't deliver */ 1582 #define SM_DEFER 'd' /* defer map lookups as well as queue */ 1583 #define SM_VERIFY 'v' /* verify only (used internally) */ 1584 #define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */ 1585 1586 #define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1587 1588 /* used only as a parameter to sendall */ 1589 #define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1590 1591 /* functions */ 1592 extern void set_delivery_mode __P((int, ENVELOPE *)); 1593 1594 /* values for e_errormode -- error handling modes */ 1595 #define EM_PRINT 'p' /* print errors */ 1596 #define EM_MAIL 'm' /* mail back errors */ 1597 #define EM_WRITE 'w' /* write back errors */ 1598 #define EM_BERKNET 'e' /* special berknet processing */ 1599 #define EM_QUIET 'q' /* don't print messages (stat only) */ 1600 1601 1602 /* bit values for MimeMode */ 1603 #define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1604 #define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1605 #define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1606 1607 1608 /* how to handle messages without any recipient addresses */ 1609 #define NRA_NO_ACTION 0 /* just leave it as is */ 1610 #define NRA_ADD_TO 1 /* add To: header */ 1611 #define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1612 #define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1613 #define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1614 1615 1616 /* flags to putxline */ 1617 #define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1618 #define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1619 #define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1620 #define PXLF_HEADER 0x0004 /* map newlines in headers */ 1621 #define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1622 #define PXLF_STRIPMQUOTE 0x0010 /* strip METAQUOTEs */ 1623 1624 /* 1625 ** Privacy flags 1626 ** These are bit values for the PrivacyFlags word. 1627 */ 1628 1629 #define PRIV_PUBLIC 0 /* what have I got to hide? */ 1630 #define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1631 #define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1632 #define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1633 #define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1634 #define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1635 #define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1636 #define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1637 #define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1638 #define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1639 #define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1640 #define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1641 #define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1642 #define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1643 #define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */ 1644 1645 /* don't give no info, anyway, anyhow (in the main SMTP transaction) */ 1646 #define PRIV_GOAWAY 0x0000ffff 1647 1648 /* struct defining such things */ 1649 struct prival 1650 { 1651 char *pv_name; /* name of privacy flag */ 1652 unsigned long pv_flag; /* numeric level */ 1653 }; 1654 1655 EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1656 1657 1658 /* 1659 ** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1660 */ 1661 1662 #define RF_SENDERADDR 0x001 /* this is a sender address */ 1663 #define RF_HEADERADDR 0x002 /* this is a header address */ 1664 #define RF_CANONICAL 0x004 /* strip comment information */ 1665 #define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1666 #define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1667 #define RF_COPYPADDR 0x020 /* copy print address */ 1668 #define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1669 #define RF_COPYNONE 0 1670 #define RF_RM_ADDR 0x040 /* address to be removed */ 1671 1672 /* 1673 ** Flags passed to rscheck 1674 */ 1675 1676 #define RSF_RMCOMM 0x0001 /* strip comments */ 1677 #define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1678 #define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1679 1680 /* 1681 ** Flags passed to mime8to7 and putheader. 1682 */ 1683 1684 #define M87F_OUTER 0 /* outer context */ 1685 #define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1686 #define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1687 #define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1688 1689 /* functions */ 1690 extern bool mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1691 extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int, int)); 1692 1693 /* 1694 ** Flags passed to returntosender. 1695 */ 1696 1697 #define RTSF_NO_BODY 0 /* send headers only */ 1698 #define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1699 #define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1700 1701 /* functions */ 1702 extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1703 1704 /* 1705 ** Mail Filters (milter) 1706 */ 1707 1708 /* 1709 ** 32-bit type used by milter 1710 ** (needed by libmilter even if MILTER isn't defined) 1711 */ 1712 1713 typedef SM_INT32 mi_int32; 1714 1715 #if MILTER 1716 # define SMFTO_WRITE 0 /* Timeout for sending information */ 1717 # define SMFTO_READ 1 /* Timeout waiting for a response */ 1718 # define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1719 # define SMFTO_CONNECT 3 /* Timeout for connect() */ 1720 1721 # define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1722 1723 struct milter 1724 { 1725 char *mf_name; /* filter name */ 1726 BITMAP256 mf_flags; /* MTA flags */ 1727 mi_int32 mf_fvers; /* filter version */ 1728 mi_int32 mf_fflags; /* filter flags */ 1729 mi_int32 mf_pflags; /* protocol flags */ 1730 char *mf_conn; /* connection info */ 1731 int mf_sock; /* connected socket */ 1732 char mf_state; /* state of filter */ 1733 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1734 #if _FFR_MILTER_CHECK 1735 /* for testing only */ 1736 mi_int32 mf_mta_prot_version; 1737 mi_int32 mf_mta_prot_flags; 1738 mi_int32 mf_mta_actions; 1739 #endif /* _FFR_MILTER_CHECK */ 1740 }; 1741 1742 struct milters 1743 { 1744 mi_int32 mis_flags; /* filter flags */ 1745 }; 1746 typedef struct milters milters_T; 1747 1748 #define MIS_FL_NONE 0x00000000 /* no requirements... */ 1749 #define MIS_FL_DEL_RCPT 0x00000001 /* can delete rcpt */ 1750 #define MIS_FL_REJ_RCPT 0x00000002 /* can reject rcpt */ 1751 1752 1753 /* MTA flags */ 1754 # define SMF_REJECT 'R' /* Reject connection on filter fail */ 1755 # define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1756 # define SMF_TEMPDROP '4' /* 421 connection on failure */ 1757 1758 EXTERN struct milter *InputFilters[MAXFILTERS]; 1759 EXTERN char *InputFilterList; 1760 EXTERN int MilterLogLevel; 1761 1762 /* functions */ 1763 extern void setup_daemon_milters __P((void)); 1764 #endif /* MILTER */ 1765 1766 /* 1767 ** Vendor codes 1768 ** 1769 ** Vendors can customize sendmail to add special behaviour, 1770 ** generally for back compatibility. Ideally, this should 1771 ** be set up in the .cf file using the "V" command. However, 1772 ** it's quite reasonable for some vendors to want the default 1773 ** be their old version; this can be set using 1774 ** -DVENDOR_DEFAULT=VENDOR_xxx 1775 ** in the Makefile. 1776 ** 1777 ** Vendors should apply to sendmail@sendmail.org for 1778 ** unique vendor codes. 1779 */ 1780 1781 #define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1782 #define VENDOR_SUN 2 /* Sun-native configuration file */ 1783 #define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1784 #define VENDOR_IBM 4 /* IBM specific config syntax */ 1785 #define VENDOR_SENDMAIL 5 /* Sendmail, Inc. specific config syntax */ 1786 #define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1787 1788 /* prototypes for vendor-specific hook routines */ 1789 extern void vendor_daemon_setup __P((ENVELOPE *)); 1790 extern void vendor_set_uid __P((UID_T)); 1791 1792 1793 /* 1794 ** Terminal escape codes. 1795 ** 1796 ** To make debugging output clearer. 1797 */ 1798 1799 struct termescape 1800 { 1801 char *te_rv_on; /* turn reverse-video on */ 1802 char *te_under_on; /* turn underlining on */ 1803 char *te_normal; /* revert to normal output */ 1804 }; 1805 1806 /* 1807 ** Additional definitions 1808 */ 1809 1810 /* 1811 ** d_flags, see daemon.c 1812 ** general rule: lower case: required, upper case: No 1813 */ 1814 1815 #define D_AUTHREQ 'a' /* authentication required */ 1816 #define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1817 #define D_CANONREQ 'c' /* canonification required (cf) */ 1818 #define D_IFNHELO 'h' /* use if name for HELO */ 1819 #define D_FQMAIL 'f' /* fq sender address required (cf) */ 1820 #define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1821 #define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1822 #define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1823 #define D_NOAUTH 'A' /* no AUTH */ 1824 #define D_NOCANON 'C' /* no canonification (cf) */ 1825 #define D_NOETRN 'E' /* no ETRN (MSA) */ 1826 #define D_NOTLS 'S' /* don't use STARTTLS */ 1827 #define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1828 #define D_OPTIONAL 'O' /* optional socket */ 1829 #define D_DISABLE ((char)0x02) /* optional socket disabled */ 1830 #define D_ISSET ((char)0x03) /* this client struct is set */ 1831 1832 #if STARTTLS 1833 /* 1834 ** TLS 1835 */ 1836 1837 /* what to do in the TLS initialization */ 1838 #define TLS_I_NONE 0x00000000 /* no requirements... */ 1839 #define TLS_I_CERT_EX 0x00000001 /* cert must exist */ 1840 #define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */ 1841 #define TLS_I_KEY_EX 0x00000004 /* key must exist */ 1842 #define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */ 1843 #define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */ 1844 #define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */ 1845 #define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */ 1846 #define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */ 1847 #define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1848 #define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1849 #define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1850 #define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1851 #define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1852 #define TLS_I_CACHE 0x00002000 /* require cache */ 1853 #define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1854 #define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1855 #define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1856 #define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1857 #define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1858 #define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1859 #define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1860 #define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1861 #define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */ 1862 #define TLS_I_CRLF_EX 0x00800000 /* CRL file must exist */ 1863 #define TLS_I_CRLF_UNR 0x01000000 /* CRL file must be g/o unreadable */ 1864 1865 /* require server cert */ 1866 #define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1867 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1868 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1869 TLS_I_USE_KEY | TLS_I_USE_CERT | TLS_I_CACHE) 1870 1871 /* server requirements */ 1872 #define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1873 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH512 | \ 1874 TLS_I_CACHE) 1875 1876 /* client requirements */ 1877 #define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1878 1879 #define TLS_AUTH_OK 0 1880 #define TLS_AUTH_NO 1 1881 #define TLS_AUTH_FAIL (-1) 1882 1883 /* functions */ 1884 extern bool init_tls_library __P((void)); 1885 extern bool inittls __P((SSL_CTX **, unsigned long, bool, char *, char *, char *, char *, char *)); 1886 extern bool initclttls __P((bool)); 1887 extern void setclttls __P((bool)); 1888 extern bool initsrvtls __P((bool)); 1889 extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1890 extern int endtls __P((SSL *, char *)); 1891 extern void tlslogerr __P((const char *)); 1892 1893 1894 EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */ 1895 EXTERN char *CACertFile; /* file with CA certificate */ 1896 EXTERN char *CltCertFile; /* file with client certificate */ 1897 EXTERN char *CltKeyFile; /* file with client private key */ 1898 # if _FFR_TLS_1 1899 EXTERN char *CipherList; /* list of ciphers */ 1900 EXTERN char *DHParams5; /* file with DH parameters (512) */ 1901 # endif /* _FFR_TLS_1 */ 1902 EXTERN char *DHParams; /* file with DH parameters */ 1903 EXTERN char *RandFile; /* source of random data */ 1904 EXTERN char *SrvCertFile; /* file with server certificate */ 1905 EXTERN char *SrvKeyFile; /* file with server private key */ 1906 EXTERN char *CRLFile; /* file CRLs */ 1907 #if _FFR_CRLPATH 1908 EXTERN char *CRLPath; /* path to CRLs (dir. with hashes) */ 1909 #endif /* _FFR_CRLPATH */ 1910 EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1911 #endif /* STARTTLS */ 1912 1913 /* 1914 ** Queue related items 1915 */ 1916 1917 /* queue file names */ 1918 #define ANYQFL_LETTER '?' 1919 #define QUARQF_LETTER 'h' 1920 #define DATAFL_LETTER 'd' 1921 #define XSCRPT_LETTER 'x' 1922 #define NORMQF_LETTER 'q' 1923 #define NEWQFL_LETTER 't' 1924 1925 # define TEMPQF_LETTER 'T' 1926 # define LOSEQF_LETTER 'Q' 1927 1928 /* queue sort order */ 1929 #define QSO_BYPRIORITY 0 /* sort by message priority */ 1930 #define QSO_BYHOST 1 /* sort by first host name */ 1931 #define QSO_BYTIME 2 /* sort by submission time */ 1932 #define QSO_BYFILENAME 3 /* sort by file name only */ 1933 #define QSO_RANDOM 4 /* sort in random order */ 1934 #define QSO_BYMODTIME 5 /* sort by modification time */ 1935 #define QSO_NONE 6 /* do not sort */ 1936 #if _FFR_RHS 1937 # define QSO_BYSHUFFLE 7 /* sort by shuffled host name */ 1938 #endif /* _FFR_RHS */ 1939 1940 #define NOQGRP (-1) /* no queue group (yet) */ 1941 #define ENVQGRP (-2) /* use queue group of envelope */ 1942 #define NOAQGRP (-3) /* no queue group in addr (yet) */ 1943 #define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 1944 #define NOQDIR (-1) /* no queue directory (yet) */ 1945 #define ENVQDIR (-2) /* use queue directory of envelope */ 1946 #define NOAQDIR (-3) /* no queue directory in addr (yet) */ 1947 #define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 1948 #define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 1949 1950 #define NOW ((time_t) (-1)) /* queue return: now */ 1951 1952 /* SuperSafe values */ 1953 #define SAFE_NO 0 /* no fsync(): don't use... */ 1954 #define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 1955 #define SAFE_REALLY 2 /* always fsync() */ 1956 #define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */ 1957 1958 /* QueueMode bits */ 1959 #define QM_NORMAL ' ' 1960 #define QM_QUARANTINE 'Q' 1961 #define QM_LOST 'L' 1962 1963 /* Queue Run Limitations */ 1964 struct queue_char 1965 { 1966 char *queue_match; /* string to match */ 1967 bool queue_negate; /* or not match, if set */ 1968 struct queue_char *queue_next; 1969 }; 1970 1971 /* run_work_group() flags */ 1972 #define RWG_NONE 0x0000 1973 #define RWG_FORK 0x0001 1974 #define RWG_VERBOSE 0x0002 1975 #define RWG_PERSISTENT 0x0004 1976 #define RWG_FORCE 0x0008 1977 #define RWG_RUNALL 0x0010 1978 1979 typedef struct queue_char QUEUE_CHAR; 1980 1981 EXTERN int volatile CurRunners; /* current number of runner children */ 1982 EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 1983 EXTERN int MaxQueueChildren; /* max # of forked queue children */ 1984 EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 1985 EXTERN int NiceQueueRun; /* nice queue runs to this value */ 1986 EXTERN int NumQueue; /* number of queue groups */ 1987 EXTERN int QueueFileMode; /* mode on files in mail queue */ 1988 EXTERN int QueueMode; /* which queue items to act upon */ 1989 EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 1990 EXTERN time_t MinQueueAge; /* min delivery interval */ 1991 EXTERN time_t QueueIntvl; /* intervals between running the queue */ 1992 EXTERN char *QueueDir; /* location of queue directory */ 1993 EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 1994 EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 1995 EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 1996 EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 1997 EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 1998 1999 /* functions */ 2000 extern void assign_queueid __P((ENVELOPE *)); 2001 extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 2002 extern void cleanup_queues __P((void)); 2003 extern bool doqueuerun __P((void)); 2004 extern void initsys __P((ENVELOPE *)); 2005 extern void loseqfile __P((ENVELOPE *, char *)); 2006 extern int name2qid __P((char *)); 2007 extern char *qid_printname __P((ENVELOPE *)); 2008 extern char *qid_printqueue __P((int, int)); 2009 extern void quarantine_queue __P((char *, int)); 2010 extern char *queuename __P((ENVELOPE *, int)); 2011 extern void queueup __P((ENVELOPE *, bool, bool)); 2012 extern bool runqueue __P((bool, bool, bool, bool)); 2013 extern bool run_work_group __P((int, int)); 2014 extern void set_def_queueval __P((QUEUEGRP *, bool)); 2015 extern void setup_queues __P((bool)); 2016 extern bool setnewqueue __P((ENVELOPE *)); 2017 extern bool shouldqueue __P((long, time_t)); 2018 extern void sync_queue_time __P((void)); 2019 extern void init_qid_alg __P((void)); 2020 extern int print_single_queue __P((int, int)); 2021 #if REQUIRES_DIR_FSYNC 2022 # define SYNC_DIR(path, panic) sync_dir(path, panic) 2023 extern void sync_dir __P((char *, bool)); 2024 #else /* REQUIRES_DIR_FSYNC */ 2025 # define SYNC_DIR(path, panic) ((void) 0) 2026 #endif /* REQUIRES_DIR_FSYNC */ 2027 2028 /* 2029 ** Timeouts 2030 ** 2031 ** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 2032 */ 2033 2034 EXTERN struct 2035 { 2036 /* RFC 1123-specified timeouts [minimum value] */ 2037 time_t to_initial; /* initial greeting timeout [5m] */ 2038 time_t to_mail; /* MAIL command [5m] */ 2039 time_t to_rcpt; /* RCPT command [5m] */ 2040 time_t to_datainit; /* DATA initiation [2m] */ 2041 time_t to_datablock; /* DATA block [3m] */ 2042 time_t to_datafinal; /* DATA completion [10m] */ 2043 time_t to_nextcommand; /* next command [5m] */ 2044 /* following timeouts are not mentioned in RFC 1123 */ 2045 time_t to_iconnect; /* initial connection timeout (first try) */ 2046 time_t to_connect; /* initial connection timeout (later tries) */ 2047 time_t to_aconnect; /* all connections timeout (MX and A records) */ 2048 time_t to_rset; /* RSET command */ 2049 time_t to_helo; /* HELO command */ 2050 time_t to_quit; /* QUIT command */ 2051 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 2052 time_t to_ident; /* IDENT protocol requests */ 2053 time_t to_fileopen; /* opening :include: and .forward files */ 2054 time_t to_control; /* process a control socket command */ 2055 time_t to_lhlo; /* LMTP: LHLO command */ 2056 #if SASL 2057 time_t to_auth; /* AUTH dialogue [10m] */ 2058 #endif /* SASL */ 2059 #if STARTTLS 2060 time_t to_starttls; /* STARTTLS dialogue [10m] */ 2061 #endif /* STARTTLS */ 2062 /* following are per message */ 2063 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2064 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2065 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2066 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2067 } TimeOuts; 2068 2069 /* timeout classes for return and warning timeouts */ 2070 #define TOC_NORMAL 0 /* normal delivery */ 2071 #define TOC_URGENT 1 /* urgent delivery */ 2072 #define TOC_NONURGENT 2 /* non-urgent delivery */ 2073 #define TOC_DSN 3 /* DSN delivery */ 2074 2075 /* resolver timeout specifiers */ 2076 #define RES_TO_FIRST 0 /* first attempt */ 2077 #define RES_TO_NORMAL 1 /* subsequent attempts */ 2078 #define RES_TO_DEFAULT 2 /* default value */ 2079 2080 /* functions */ 2081 extern void inittimeouts __P((char *, bool)); 2082 2083 /* 2084 ** Interface probing 2085 */ 2086 2087 #define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2088 #define DPI_PROBEALL 1 /* Probe all interfaces */ 2089 #define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2090 2091 /* 2092 ** Trace information 2093 */ 2094 2095 /* macros for debugging flags */ 2096 #define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2097 #define tTdlevel(flag) (tTdvect[flag]) 2098 2099 /* variables */ 2100 extern unsigned char tTdvect[100]; /* trace vector */ 2101 2102 /* 2103 ** Miscellaneous information. 2104 */ 2105 2106 /* 2107 ** The "no queue id" queue id for sm_syslog 2108 */ 2109 2110 #define NOQID "" 2111 2112 #define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2113 2114 /* 2115 ** Some in-line functions 2116 */ 2117 2118 /* set exit status */ 2119 #define setstat(s) { \ 2120 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2121 ExitStat = s; \ 2122 } 2123 2124 2125 #define STRUCTCOPY(s, d) d = s 2126 2127 /* free a pointer if it isn't NULL and set it to NULL */ 2128 #define SM_FREE_CLR(p) \ 2129 if ((p) != NULL) \ 2130 { \ 2131 sm_free(p); \ 2132 (p) = NULL; \ 2133 } \ 2134 else 2135 2136 /* 2137 ** Update a permanent string variable with a new value. 2138 ** The old value is freed, the new value is strdup'ed. 2139 ** 2140 ** We use sm_pstrdup_x to duplicate the string because it raises 2141 ** an exception on error, and because it allocates "permanent storage" 2142 ** which is not expected to be freed before process exit. 2143 ** The latter is important for memory leak analysis. 2144 ** 2145 ** If an exception occurs while strdup'ing the new value, 2146 ** then the variable remains set to the old value. 2147 ** That's why the strdup must occur before we free the old value. 2148 ** 2149 ** The macro uses a do loop so that this idiom will work: 2150 ** if (...) 2151 ** PSTRSET(var, val1); 2152 ** else 2153 ** PSTRSET(var, val2); 2154 */ 2155 #define PSTRSET(var, val) \ 2156 do \ 2157 { \ 2158 char *_newval = sm_pstrdup_x(val); \ 2159 if (var != NULL) \ 2160 sm_free(var); \ 2161 var = _newval; \ 2162 } while (0) 2163 2164 #define _CHECK_RESTART \ 2165 do \ 2166 { \ 2167 if (ShutdownRequest != NULL) \ 2168 shutdown_daemon(); \ 2169 else if (RestartRequest != NULL) \ 2170 restart_daemon(); \ 2171 else if (RestartWorkGroup) \ 2172 restart_marked_work_groups(); \ 2173 } while (0) 2174 2175 # define CHECK_RESTART _CHECK_RESTART 2176 2177 /* reply types (text in SmtpMsgBuffer) */ 2178 #define XS_DEFAULT 0 2179 #define XS_STARTTLS 1 2180 #define XS_AUTH 2 2181 2182 /* 2183 ** Global variables. 2184 */ 2185 2186 #if _FFR_ADDR_TYPE_MODES 2187 EXTERN bool AddrTypeModes; /* addr_type: extra "mode" information */ 2188 #endif /* _FFR_ADDR_TYPE_MODES */ 2189 EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2190 EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2191 #if _FFR_QUEUE_RUN_PARANOIA 2192 EXTERN int CheckQueueRunners; /* check whether queue runners are OK */ 2193 #endif /* _FFR_QUEUE_RUN_PARANOIA */ 2194 EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2195 #if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2196 EXTERN bool ConfigFileRead; /* configuration file has been read */ 2197 #endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2198 EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2199 EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2200 EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2201 EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2202 EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2203 EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2204 EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2205 EXTERN bool GrabTo; /* if set, get recipients from msg */ 2206 EXTERN bool EightBitAddrOK; /* we'll let 8-bit addresses through */ 2207 EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2208 EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2209 EXTERN bool HoldErrs; /* only output errors to transcript */ 2210 EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2211 EXTERN bool IgnrDot; /* don't let dot end messages */ 2212 EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2213 EXTERN bool MatchGecos; /* look for user names in gecos field */ 2214 EXTERN bool MeToo; /* send to the sender also */ 2215 EXTERN bool NoAlias; /* suppress aliasing */ 2216 EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2217 EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2218 EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2219 #if REQUIRES_DIR_FSYNC 2220 EXTERN bool RequiresDirfsync; /* requires fsync() for directory */ 2221 #endif /* REQUIRES_DIR_FSYNC */ 2222 EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2223 EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2224 EXTERN bool SaveFrom; /* save leading "From" lines */ 2225 EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2226 EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2227 EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2228 EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2229 EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2230 EXTERN bool volatile StopRequest; /* stop sending output */ 2231 EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2232 EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2233 EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2234 EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2235 EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2236 EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2237 EXTERN char InetMode; /* default network for daemon mode */ 2238 EXTERN char OpMode; /* operation mode, see below */ 2239 EXTERN char SpaceSub; /* substitution for <lwsp> */ 2240 EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2241 #if _FFR_BADRCPT_SHUTDOWN 2242 EXTERN int BadRcptShutdown; /* Shutdown connection for rejected RCPTs */ 2243 EXTERN int BadRcptShutdownGood; /* above even when there are good RCPTs */ 2244 #endif /* _FFR_BADRCPT_SHUTDOWN */ 2245 EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2246 EXTERN int ConfigLevel; /* config file level */ 2247 EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2248 EXTERN int volatile CurChildren; /* current number of daemonic children */ 2249 EXTERN int CurrentLA; /* current load average */ 2250 EXTERN int DefaultNotify; /* default DSN notification flags */ 2251 EXTERN int DelayLA; /* load average to delay connections */ 2252 EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2253 EXTERN int Errors; /* set if errors (local to single pass) */ 2254 EXTERN int ExitStat; /* exit status code */ 2255 EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2256 EXTERN int FileMode; /* mode on files */ 2257 EXTERN int LineNumber; /* line number in current input */ 2258 EXTERN int LogLevel; /* level of logging to perform */ 2259 EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2260 EXTERN int MaxChildren; /* maximum number of daemonic children */ 2261 EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2262 EXTERN int MaxHeadersLength; /* max length of headers */ 2263 EXTERN int MaxHopCount; /* max # of hops until bounce */ 2264 EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2265 EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2266 EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2267 EXTERN int MaxNOOPCommands; /* max "noise" commands before slowdown */ 2268 2269 EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2270 EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2271 #if _FFR_MSG_ACCEPT 2272 EXTERN char *MessageAccept; /* "Message accepted for delivery" reply text */ 2273 #endif /* _FFR_MSG_ACCEPT */ 2274 2275 EXTERN int MimeMode; /* MIME processing mode */ 2276 EXTERN int NoRecipientAction; 2277 2278 #if SM_CONF_SHM 2279 EXTERN int Numfilesys; /* number of queue file systems */ 2280 EXTERN int *PNumFileSys; 2281 # define NumFileSys (*PNumFileSys) 2282 # else /* SM_CONF_SHM */ 2283 EXTERN int NumFileSys; /* number of queue file systems */ 2284 # endif /* SM_CONF_SHM */ 2285 2286 EXTERN int QueueLA; /* load average starting forced queueing */ 2287 EXTERN int RefuseLA; /* load average refusing connections */ 2288 EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */ 2289 #if _FFR_MEMSTAT 2290 EXTERN long QueueLowMem; /* low memory starting forced queueing */ 2291 EXTERN long RefuseLowMem; /* low memory refusing connections */ 2292 EXTERN char *MemoryResource;/* memory resource to look up */ 2293 #endif /* _FFR_MEMSTAT */ 2294 EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2295 EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2296 EXTERN int Verbose; /* set if blow-by-blow desired */ 2297 EXTERN gid_t DefGid; /* default gid to run as */ 2298 EXTERN gid_t RealGid; /* real gid of caller */ 2299 EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2300 EXTERN gid_t EffGid; /* effective gid */ 2301 #if SM_CONF_SHM 2302 EXTERN key_t ShmKey; /* shared memory key */ 2303 EXTERN char *ShmKeyFile; /* shared memory key file */ 2304 #endif /* SM_CONF_SHM */ 2305 EXTERN pid_t CurrentPid; /* current process id */ 2306 EXTERN pid_t DaemonPid; /* process id of daemon */ 2307 EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */ 2308 EXTERN uid_t DefUid; /* default uid to run as */ 2309 EXTERN uid_t RealUid; /* real uid of caller */ 2310 EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2311 EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2312 EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2313 EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2314 EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2315 EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2316 EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2317 EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2318 EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2319 EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2320 EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2321 EXTERN long QueueFactor; /* slope of queue function */ 2322 EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2323 EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2324 EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2325 EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2326 EXTERN char *CurHostName; /* current host we are dealing with */ 2327 EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2328 EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2329 EXTERN char *DefaultCharSet; /* default character set for MIME */ 2330 EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2331 EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2332 EXTERN char *FallbackMX; /* fall back MX host */ 2333 EXTERN char *FallbackSmartHost; /* fall back smart host */ 2334 EXTERN char *FileName; /* name to print on error messages */ 2335 EXTERN char *ForwardPath; /* path to search for .forward files */ 2336 EXTERN char *HeloName; /* hostname to announce in HELO */ 2337 EXTERN char *HelpFile; /* location of SMTP help file */ 2338 EXTERN char *HostStatDir; /* location of host status information */ 2339 EXTERN char *HostsFile; /* path to /etc/hosts file */ 2340 extern char *Mbdb; /* mailbox database type */ 2341 EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2342 EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2343 EXTERN char *OperatorChars; /* operators (old $o macro) */ 2344 EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2345 EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2346 EXTERN char *ProcTitlePrefix; /* process title prefix */ 2347 EXTERN char *RealHostName; /* name of host we are talking to */ 2348 EXTERN char *RealUserName; /* real user name of caller */ 2349 EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2350 EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2351 EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2352 EXTERN char *ServiceSwitchFile; /* backup service switch */ 2353 EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2354 EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2355 EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2356 EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2357 EXTERN char *StatFile; /* location of statistics summary */ 2358 EXTERN char *TimeZoneSpec; /* override time zone specification */ 2359 EXTERN char *UdbSpec; /* user database source spec */ 2360 EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2361 EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2362 EXTERN char **SaveArgv; /* argument vector for re-execing */ 2363 EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2364 EXTERN SM_FILE_T *InChannel; /* input connection */ 2365 EXTERN SM_FILE_T *OutChannel; /* output connection */ 2366 EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2367 #if HESIOD 2368 EXTERN void *HesiodContext; 2369 #endif /* HESIOD */ 2370 EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2371 EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2372 EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2373 EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2374 EXTERN struct termescape TermEscape; /* terminal escape codes */ 2375 EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2376 EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2377 extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2378 2379 2380 EXTERN int ConnectionRateWindowSize; 2381 2382 /* 2383 ** Declarations of useful functions 2384 */ 2385 2386 /* Transcript file */ 2387 extern void closexscript __P((ENVELOPE *)); 2388 extern void openxscript __P((ENVELOPE *)); 2389 2390 /* error related */ 2391 extern void buffer_errors __P((void)); 2392 extern void flush_errors __P((bool)); 2393 extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2394 extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2395 extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2396 extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2397 extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2398 extern int isenhsc __P((const char *, int)); 2399 extern int extenhsc __P((const char *, int, char *)); 2400 2401 /* alias file */ 2402 extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2403 extern bool aliaswait __P((MAP *, char *, bool)); 2404 extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2405 extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2406 extern bool rebuildaliases __P((MAP *, bool)); 2407 extern void setalias __P((char *)); 2408 2409 /* logging */ 2410 extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2411 extern void logsender __P((ENVELOPE *, char *)); 2412 extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2413 2414 /* SMTP */ 2415 extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2416 extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int)); 2417 extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2418 #if SASL 2419 extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2420 #endif /* SASL */ 2421 extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2422 extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2423 extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2424 extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2425 extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2426 extern char *smtptodsn __P((int)); 2427 extern int smtpprobe __P((MCI *)); 2428 extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2429 extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2430 extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2431 2432 #define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */ 2433 #define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2434 isascii(c[1]) && isdigit(c[1]) && \ 2435 isascii(c[2]) && isdigit(c[2])) 2436 #define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2437 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2438 2439 /* delivery */ 2440 extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2441 extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2442 extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2443 extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2444 extern void sendall __P((ENVELOPE *, int)); 2445 2446 /* stats */ 2447 #define STATS_NORMAL 'n' 2448 #define STATS_QUARANTINE 'q' 2449 #define STATS_REJECT 'r' 2450 #define STATS_CONNECT 'c' 2451 2452 extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2453 extern void clearstats __P((void)); 2454 extern void poststats __P((char *)); 2455 2456 /* control socket */ 2457 extern void closecontrolsocket __P((bool)); 2458 extern void clrcontrol __P((void)); 2459 extern void control_command __P((int, ENVELOPE *)); 2460 extern int opencontrolsocket __P((void)); 2461 2462 #if MILTER 2463 /* milter functions */ 2464 extern void milter_config __P((char *, struct milter **, int)); 2465 extern void milter_setup __P((char *)); 2466 extern void milter_set_option __P((char *, char *, bool)); 2467 extern bool milter_init __P((ENVELOPE *, char *, milters_T *)); 2468 extern void milter_quit __P((ENVELOPE *)); 2469 extern void milter_abort __P((ENVELOPE *)); 2470 extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2471 extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2472 extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2473 extern char *milter_data_cmd __P((ENVELOPE *, char *)); 2474 extern char *milter_envrcpt __P((char **, ENVELOPE *, char *, bool)); 2475 extern char *milter_data __P((ENVELOPE *, char *)); 2476 extern char *milter_unknown __P((char *, ENVELOPE *, char *)); 2477 #endif /* MILTER */ 2478 2479 extern char *addquotes __P((char *, SM_RPOOL_T *)); 2480 extern char *arpadate __P((char *)); 2481 extern bool atobool __P((char *)); 2482 extern int atooct __P((char *)); 2483 extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2484 extern int blocksignal __P((int)); 2485 extern bool bitintersect __P((BITMAP256, BITMAP256)); 2486 extern bool bitzerop __P((BITMAP256)); 2487 extern int check_bodytype __P((char *)); 2488 extern void buildfname __P((char *, char *, char *, int)); 2489 extern bool chkclientmodifiers __P((int)); 2490 extern bool chkdaemonmodifiers __P((int)); 2491 extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2492 #ifdef XDEBUG 2493 extern void checkfd012 __P((char *)); 2494 extern void checkfdopen __P((int, char *)); 2495 #endif /* XDEBUG */ 2496 extern void checkfds __P((char *)); 2497 extern bool chownsafe __P((int, bool)); 2498 extern void cleanstrcpy __P((char *, char *, int)); 2499 #if SM_CONF_SHM 2500 extern void cleanup_shm __P((bool)); 2501 #endif /* SM_CONF_SHM */ 2502 extern void close_sendmail_pid __P((void)); 2503 extern void clrdaemon __P((void)); 2504 extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool)); 2505 extern bool connection_rate_check __P((SOCKADDR *, ENVELOPE *)); 2506 extern time_t convtime __P((char *, int)); 2507 extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2508 extern void copy_class __P((int, int)); 2509 extern int count_open_connections __P((SOCKADDR *)); 2510 extern time_t curtime __P((void)); 2511 extern char *defcharset __P((ENVELOPE *)); 2512 extern char *denlstring __P((char *, bool, bool)); 2513 extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *)); 2514 extern void disconnect __P((int, ENVELOPE *)); 2515 extern void disk_status __P((SM_FILE_T *, char *)); 2516 extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2517 extern pid_t dofork __P((void)); 2518 extern int drop_privileges __P((bool)); 2519 extern int dsntoexitstat __P((char *)); 2520 extern void dumpfd __P((int, bool, bool)); 2521 #if SM_HEAP_CHECK 2522 extern void dumpstab __P((void)); 2523 #endif /* SM_HEAP_CHECK */ 2524 extern void dumpstate __P((char *)); 2525 extern bool enoughdiskspace __P((long, ENVELOPE *)); 2526 extern char *exitstat __P((char *)); 2527 extern void fatal_error __P((SM_EXC_T *)); 2528 extern char *fgetfolded __P((char *, int *, SM_FILE_T *)); 2529 extern void fill_fd __P((int, char *)); 2530 extern char *find_character __P((char *, int)); 2531 extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2532 extern void finis __P((bool, bool, volatile int)); 2533 extern void fixcrlf __P((char *, bool)); 2534 extern long freediskspace __P((const char *, long *)); 2535 #if NETINET6 && NEEDSGETIPNODE 2536 extern void freehostent __P((struct hostent *)); 2537 #endif /* NETINET6 && NEEDSGETIPNODE */ 2538 extern char *get_column __P((char *, int, int, char *, int)); 2539 extern char *getauthinfo __P((int, bool *)); 2540 extern int getdtsize __P((void)); 2541 extern int getla __P((void)); 2542 extern char *getmodifiers __P((char *, BITMAP256)); 2543 extern BITMAP256 *getrequests __P((ENVELOPE *)); 2544 extern char *getvendor __P((int)); 2545 extern void help __P((char *, ENVELOPE *)); 2546 extern void init_md __P((int, char **)); 2547 extern void initdaemon __P((void)); 2548 extern void inithostmaps __P((void)); 2549 extern void initmacros __P((ENVELOPE *)); 2550 extern void initsetproctitle __P((int, char **, char **)); 2551 extern void init_vendor_macros __P((ENVELOPE *)); 2552 extern SIGFUNC_DECL intsig __P((int)); 2553 extern bool isloopback __P((SOCKADDR sa)); 2554 extern void load_if_names __P((void)); 2555 extern bool lockfile __P((int, char *, char *, int)); 2556 extern void log_sendmail_pid __P((ENVELOPE *)); 2557 extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2558 extern char lower __P((int)); 2559 extern void makelower __P((char *)); 2560 extern int makeconnection_ds __P((char *, MCI *)); 2561 extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2562 extern void makeworkgroups __P((void)); 2563 extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool)); 2564 extern void mark_work_group_restart __P((int, int)); 2565 extern MCI *mci_new __P((SM_RPOOL_T *)); 2566 extern char *munchstring __P((char *, char **, int)); 2567 extern struct hostent *myhostname __P((char *, int)); 2568 extern char *newstr __P((const char *)); 2569 #if NISPLUS 2570 extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2571 #endif /* NISPLUS */ 2572 extern bool path_is_dir __P((char *, bool)); 2573 extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2574 extern char *pintvl __P((time_t, bool)); 2575 extern void printav __P((SM_FILE_T *, char **)); 2576 extern void printmailer __P((SM_FILE_T *, MAILER *)); 2577 extern void printnqe __P((SM_FILE_T *, char *)); 2578 extern void printopenfds __P((bool)); 2579 extern void printqueue __P((void)); 2580 extern void printrules __P((void)); 2581 extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2582 extern bool putline __P((char *, MCI *)); 2583 extern bool putxline __P((char *, size_t, MCI *, int)); 2584 extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2585 extern void readcf __P((char *, bool, ENVELOPE *)); 2586 extern SIGFUNC_DECL reapchild __P((int)); 2587 extern int releasesignal __P((int)); 2588 extern void resetlimits __P((void)); 2589 extern void restart_daemon __P((void)); 2590 extern void restart_marked_work_groups __P((void)); 2591 extern bool rfc822_string __P((char *)); 2592 extern void rmexpstab __P((void)); 2593 extern bool savemail __P((ENVELOPE *, bool)); 2594 extern void seed_random __P((void)); 2595 extern void sendtoargv __P((char **, ENVELOPE *)); 2596 extern void setclientoptions __P((char *)); 2597 extern bool setdaemonoptions __P((char *)); 2598 extern void setdefaults __P((ENVELOPE *)); 2599 extern void setdefuser __P((void)); 2600 extern bool setvendor __P((char *)); 2601 extern void set_op_mode __P((int)); 2602 extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2603 extern sigfunc_t setsignal __P((int, sigfunc_t)); 2604 extern void sm_setuserenv __P((const char *, const char *)); 2605 extern void settime __P((ENVELOPE *)); 2606 #if STARTTLS 2607 extern void set_tls_rd_tmo __P((int)); 2608 #else /* STARTTLS */ 2609 #define set_tls_rd_tmo(rd_tmo) 2610 #endif /* STARTTLS */ 2611 extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2612 extern char *shortenstring __P((const char *, size_t)); 2613 extern char *shorten_hostname __P((char [])); 2614 extern bool shorten_rfc822_string __P((char *, size_t)); 2615 extern void shutdown_daemon __P((void)); 2616 extern void sm_closefrom __P((int lowest, int highest)); 2617 extern void sm_close_on_exec __P((int lowest, int highest)); 2618 extern struct hostent *sm_gethostbyname __P((char *, int)); 2619 extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2620 extern void sm_getla __P((void)); 2621 extern struct passwd *sm_getpwnam __P((char *)); 2622 extern struct passwd *sm_getpwuid __P((UID_T)); 2623 extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2624 extern pid_t sm_wait __P((int *)); 2625 extern bool split_by_recipient __P((ENVELOPE *e)); 2626 extern void stop_sendmail __P((void)); 2627 extern void stripbackslash __P((char *)); 2628 extern bool strreplnonprt __P((char *, int)); 2629 extern bool strcontainedin __P((bool, char *, char *)); 2630 extern int switch_map_find __P((char *, char *[], short [])); 2631 #if STARTTLS 2632 extern void tls_set_verify __P((SSL_CTX *, SSL *, bool)); 2633 #endif /* STARTTLS */ 2634 extern bool transienterror __P((int)); 2635 extern void truncate_at_delim __P((char *, size_t, int)); 2636 extern void tTflag __P((char *)); 2637 extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2638 extern SIGFUNC_DECL tick __P((int)); 2639 extern char *ttypath __P((void)); 2640 extern void unlockqueue __P((ENVELOPE *)); 2641 #if !HASUNSETENV 2642 extern void unsetenv __P((char *)); 2643 #endif /* !HASUNSETENV */ 2644 2645 /* update file system information: +/- some blocks */ 2646 #if SM_CONF_SHM 2647 extern void upd_qs __P((ENVELOPE *, bool, bool, char *)); 2648 # define updfs(e, count, space, where) upd_qs(e, count, space, where) 2649 #else /* SM_CONF_SHM */ 2650 # define updfs(e, count, space, where) 2651 # define upd_qs(e, count, space, where) 2652 #endif /* SM_CONF_SHM */ 2653 2654 extern char *username __P((void)); 2655 extern bool usershellok __P((char *, char *)); 2656 extern void vendor_post_defaults __P((ENVELOPE *)); 2657 extern void vendor_pre_defaults __P((ENVELOPE *)); 2658 extern int waitfor __P((pid_t)); 2659 extern bool writable __P((char *, ADDRESS *, long)); 2660 #if SM_HEAP_CHECK 2661 # define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2662 extern char *xalloc_tagged __P((int, char*, int)); 2663 #else /* SM_HEAP_CHECK */ 2664 extern char *xalloc __P((int)); 2665 #endif /* SM_HEAP_CHECK */ 2666 extern void xputs __P((SM_FILE_T *, const char *)); 2667 extern char *xtextify __P((char *, char *)); 2668 extern bool xtextok __P((char *)); 2669 extern int xunlink __P((char *)); 2670 extern char *xuntextify __P((char *)); 2671 2672 2673 #undef EXTERN 2674 #endif /* ! _SENDMAIL_H */ 2675