1/* 2 * Copyright (c) 1998-2013 Proofpoint, 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#ifndef MILTER 21# define MILTER 1 /* turn on MILTER by default */ 22#endif /* MILTER */ 23 24#ifdef _DEFINE 25# define EXTERN 26#else /* _DEFINE */ 27# define EXTERN extern 28#endif /* _DEFINE */ 29 30 31#include <unistd.h> 32 33#include <stddef.h> 34#include <stdlib.h> 35#include <stdio.h> 36#include <ctype.h> 37#include <setjmp.h> 38#include <string.h> 39#include <time.h> 40# ifdef EX_OK 41# undef EX_OK /* for SVr4.2 SMP */ 42# endif /* EX_OK */ 43 44#include "sendmail/sendmail.h" 45 46/* profiling? */ 47#if MONCONTROL 48# define SM_PROF(x) moncontrol(x) 49#else /* MONCONTROL */ 50# define SM_PROF(x) 51#endif /* MONCONTROL */ 52 53#ifdef _DEFINE 54# ifndef lint 55SM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.1104 2013-11-22 20:51:56 ca Exp $"; 56# endif /* ! lint */ 57#endif /* _DEFINE */ 58 59#include "bf.h" 60#include "timers.h" 61#include <sm/exc.h> 62#include <sm/heap.h> 63#include <sm/debug.h> 64#include <sm/rpool.h> 65#include <sm/io.h> 66#include <sm/path.h> 67#include <sm/signal.h> 68#include <sm/clock.h> 69#include <sm/mbdb.h> 70#include <sm/errstring.h> 71#include <sm/sysexits.h> 72#include <sm/shm.h> 73#include <sm/misc.h> 74 75#ifdef LOG 76# include <syslog.h> 77#endif /* LOG */ 78 79 80 81# if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 82# include <sys/socket.h> 83# endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 84# if NETUNIX 85# include <sys/un.h> 86# endif /* NETUNIX */ 87# if NETINET || NETINET6 88# include <netinet/in.h> 89# endif /* NETINET || NETINET6 */ 90# if NETINET6 91/* 92** There is no standard yet for IPv6 includes. 93** Specify OS specific implementation in conf.h 94*/ 95# endif /* NETINET6 */ 96# if NETISO 97# include <netiso/iso.h> 98# endif /* NETISO */ 99# if NETNS 100# include <netns/ns.h> 101# endif /* NETNS */ 102# if NETX25 103# include <netccitt/x25.h> 104# endif /* NETX25 */ 105 106# if NAMED_BIND 107# include <arpa/nameser.h> 108# ifdef NOERROR 109# undef NOERROR /* avoid <sys/streams.h> conflict */ 110# endif /* NOERROR */ 111# include <resolv.h> 112# else /* NAMED_BIND */ 113# undef SM_SET_H_ERRNO 114# define SM_SET_H_ERRNO(err) 115# endif /* NAMED_BIND */ 116 117# if HESIOD 118# include <hesiod.h> 119# if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 120# define HESIOD_INIT /* support for the new interface */ 121# endif /* !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) */ 122# endif /* HESIOD */ 123 124#if STARTTLS 125# include <openssl/ssl.h> 126# if !TLS_NO_RSA 127# if _FFR_FIPSMODE 128# define RSA_KEYLENGTH 1024 129# else /* _FFR_FIPSMODE */ 130# define RSA_KEYLENGTH 512 131# endif /* _FFR_FIPSMODE */ 132# endif /* !TLS_NO_RSA */ 133#endif /* STARTTLS */ 134 135#if SASL /* include the sasl include files if we have them */ 136 137 138# if SASL == 2 || SASL >= 20000 139# include <sasl/sasl.h> 140# include <sasl/saslplug.h> 141# include <sasl/saslutil.h> 142# if SASL_VERSION_FULL < 0x020119 143typedef int (*sasl_callback_ft)(void); 144# endif /* SASL_VERSION_FULL < 0x020119 */ 145# else /* SASL == 2 || SASL >= 20000 */ 146# include <sasl.h> 147# include <saslutil.h> 148typedef int (*sasl_callback_ft)(void); 149# endif /* SASL == 2 || SASL >= 20000 */ 150# if defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) 151# define SASL_VERSION (SASL_VERSION_MAJOR * 10000) + (SASL_VERSION_MINOR * 100) + SASL_VERSION_STEP 152# if SASL == 1 || SASL == 2 153# undef SASL 154# define SASL SASL_VERSION 155# else /* SASL == 1 || SASL == 2 */ 156# if SASL != SASL_VERSION 157 ERROR README: -DSASL (SASL) does not agree with the version of the CYRUS_SASL library (SASL_VERSION) 158 ERROR README: see README! 159# endif /* SASL != SASL_VERSION */ 160# endif /* SASL == 1 || SASL == 2 */ 161# else /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 162# if SASL == 1 163 ERROR README: please set -DSASL to the version of the CYRUS_SASL library 164 ERROR README: see README! 165# endif /* SASL == 1 */ 166# endif /* defined(SASL_VERSION_MAJOR) && defined(SASL_VERSION_MINOR) && defined(SASL_VERSION_STEP) */ 167#endif /* SASL */ 168 169/* 170** Following are "sort of" configuration constants, but they should 171** be pretty solid on most architectures today. They have to be 172** defined after <arpa/nameser.h> because some versions of that 173** file also define them. In all cases, we can't use sizeof because 174** some systems (e.g., Crays) always treat everything as being at 175** least 64 bits. 176*/ 177 178#ifndef INADDRSZ 179# define INADDRSZ 4 /* size of an IPv4 address in bytes */ 180#endif /* ! INADDRSZ */ 181#ifndef IN6ADDRSZ 182# define IN6ADDRSZ 16 /* size of an IPv6 address in bytes */ 183#endif /* ! IN6ADDRSZ */ 184#ifndef INT16SZ 185# define INT16SZ 2 /* size of a 16 bit integer in bytes */ 186#endif /* ! INT16SZ */ 187#ifndef INT32SZ 188# define INT32SZ 4 /* size of a 32 bit integer in bytes */ 189#endif /* ! INT32SZ */ 190#ifndef INADDR_LOOPBACK 191# define INADDR_LOOPBACK 0x7f000001 /* loopback address */ 192#endif /* ! INADDR_LOOPBACK */ 193 194/* 195** Error return from inet_addr(3), in case not defined in /usr/include. 196*/ 197 198#ifndef INADDR_NONE 199# define INADDR_NONE 0xffffffff 200#endif /* ! INADDR_NONE */ 201 202/* By default use uncompressed IPv6 address format (no "::") */ 203#ifndef IPV6_FULL 204# define IPV6_FULL 1 205#endif 206 207/* (f)open() modes for queue files */ 208#define QF_O_EXTRA 0 209 210#if _FFR_PROXY || _FFR_LOGREPLY 211# define _FFR_ERRCODE 1 212#endif 213 214#define SM_ARRAY_SIZE(array) (sizeof(array) / sizeof((array)[0])) 215 216/* 217** An 'argument class' describes the storage allocation status 218** of an object pointed to by an argument to a function. 219*/ 220 221typedef enum 222{ 223 A_HEAP, /* the storage was allocated by malloc, and the 224 * ownership of the storage is ceded by the caller 225 * to the called function. */ 226 A_TEMP, /* The storage is temporary, and is only guaranteed 227 * to be valid for the duration of the function call. */ 228 A_PERM /* The storage is 'permanent': this might mean static 229 * storage, or rpool storage. */ 230} ARGCLASS_T; 231 232/* forward references for prototypes */ 233typedef struct envelope ENVELOPE; 234typedef struct mailer MAILER; 235typedef struct queuegrp QUEUEGRP; 236 237/* 238** Address structure. 239** Addresses are stored internally in this structure. 240*/ 241 242struct address 243{ 244 char *q_paddr; /* the printname for the address */ 245 char *q_user; /* user name */ 246 char *q_ruser; /* real user name, or NULL if q_user */ 247 char *q_host; /* host name */ 248 struct mailer *q_mailer; /* mailer to use */ 249 unsigned long q_flags; /* status flags, see below */ 250 uid_t q_uid; /* user-id of receiver (if known) */ 251 gid_t q_gid; /* group-id of receiver (if known) */ 252 char *q_home; /* home dir (local mailer only) */ 253 char *q_fullname; /* full name if known */ 254 struct address *q_next; /* chain */ 255 struct address *q_alias; /* address this results from */ 256 char *q_owner; /* owner of q_alias */ 257 struct address *q_tchain; /* temporary use chain */ 258#if PIPELINING 259 struct address *q_pchain; /* chain for pipelining */ 260#endif /* PIPELINING */ 261 char *q_finalrcpt; /* Final-Recipient: DSN header */ 262 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 263 char *q_status; /* status code for DSNs */ 264 char *q_rstatus; /* remote status message for DSNs */ 265 time_t q_statdate; /* date of status messages */ 266 char *q_statmta; /* MTA generating q_rstatus */ 267 short q_state; /* address state, see below */ 268 char *q_signature; /* MX-based sorting value */ 269 int q_qgrp; /* index into queue groups */ 270 int q_qdir; /* queue directory inside group */ 271 char *q_message; /* error message */ 272}; 273 274typedef struct address ADDRESS; 275 276/* bit values for q_flags */ 277#define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 278#define QPRIMARY 0x00000002 /* set from RCPT or argv */ 279#define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 280#define QSELFREF 0x00000008 /* this address references itself */ 281#define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 282#define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 283#define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 284#define QPINGONFAILURE 0x00000080 /* give return on failure */ 285#define QPINGONDELAY 0x00000100 /* give return on message delay */ 286#define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 287#define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 288#define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 289#define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 290#define QDELAYED 0x00002000 /* DSN: message delayed */ 291#define QALIAS 0x00004000 /* expanded alias */ 292#define QBYTRACE 0x00008000 /* DeliverBy: trace */ 293#define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 294#define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 295#define QINTBCC 0x00040000 /* internal Bcc */ 296#define QDYNMAILER 0x00080000 /* "dynamic mailer" */ 297#define QTHISPASS 0x40000000 /* temp: address set this pass */ 298#define QRCPTOK 0x80000000 /* recipient() processed address */ 299 300#define QDYNMAILFLG 'Y' 301 302#define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 303 304#if _FFR_RCPTFLAGS 305# define QMATCHFLAGS (QINTBCC|QDYNMAILER) 306# define QMATCH_FLAG(a) ((a)->q_flags & QMATCHFLAGS) 307# define ADDR_FLAGS_MATCH(a, b) (QMATCH_FLAG(a) == QMATCH_FLAG(b)) 308#else 309# define ADDR_FLAGS_MATCH(a, b) true 310#endif 311 312/* values for q_state */ 313#define QS_OK 0 /* address ok (for now)/not yet tried */ 314#define QS_SENT 1 /* good address, delivery complete */ 315#define QS_BADADDR 2 /* illegal address */ 316#define QS_QUEUEUP 3 /* save address in queue */ 317#define QS_RETRY 4 /* retry delivery for next MX */ 318#define QS_VERIFIED 5 /* verified, but not expanded */ 319 320/* 321** Notice: all of the following values are variations of QS_DONTSEND. 322** If new states are added, they must be inserted in the proper place! 323** See the macro definition of QS_IS_DEAD() down below. 324*/ 325 326#define QS_DONTSEND 6 /* don't send to this address */ 327#define QS_EXPANDED 7 /* expanded */ 328#define QS_SENDER 8 /* message sender (MeToo) */ 329#define QS_CLONED 9 /* addr cloned to split envelope */ 330#define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 331#define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 332#define QS_REMOVED 12 /* removed (removefromlist()) */ 333#define QS_DUPLICATE 13 /* duplicate suppressed */ 334#define QS_INCLUDED 14 /* :include: delivery */ 335#define QS_FATALERR 15 /* fatal error, don't deliver */ 336 337/* address state testing primitives */ 338#define QS_IS_OK(s) ((s) == QS_OK) 339#define QS_IS_SENT(s) ((s) == QS_SENT) 340#define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 341#define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 342#define QS_IS_RETRY(s) ((s) == QS_RETRY) 343#define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 344#define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 345#define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 346#define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 347 (s) == QS_QUEUEUP || \ 348 (s) == QS_RETRY || \ 349 (s) == QS_VERIFIED) 350#define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 351 (s) == QS_RETRY) 352#define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 353 (s) == QS_QUEUEUP || \ 354 (s) == QS_RETRY) 355#define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 356 (s) == QS_RETRY || \ 357 (s) == QS_SENT || \ 358 (s) == QS_DISCARDED) 359#define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 360#define QS_IS_TEMPFAIL(s) ((s) == QS_QUEUEUP || (s) == QS_RETRY) 361 362#define NULLADDR ((ADDRESS *) NULL) 363 364extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 365 366/* for cataddr() */ 367#define NOSPACESEP 256 368 369/* functions */ 370extern void cataddr __P((char **, char **, char *, int, int, bool)); 371extern char *crackaddr __P((char *, ENVELOPE *)); 372extern bool emptyaddr __P((ADDRESS *)); 373extern ADDRESS *getctladdr __P((ADDRESS *)); 374extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 375extern bool invalidaddr __P((char *, char *, bool)); 376extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 377 ENVELOPE *, bool)); 378extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool)); 379extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool)); 380extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 381extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 382extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 383extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 384extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 385#if MILTER 386extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 387#endif /* MILTER */ 388extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 389typedef void esmtp_args_F __P((ADDRESS *, char *, char *, ENVELOPE *)); 390extern void parse_esmtp_args __P((ENVELOPE *, ADDRESS *, char *, char *, 391 char *, char *args[], esmtp_args_F)); 392extern esmtp_args_F mail_esmtp_args; 393extern esmtp_args_F rcpt_esmtp_args; 394extern void reset_mail_esmtp_args __P((ENVELOPE *)); 395 396/* macro to simplify the common call to rewrite() */ 397#define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 398 399/* 400** Token Tables for prescan 401*/ 402 403extern unsigned char ExtTokenTab[256]; /* external strings */ 404extern unsigned char IntTokenTab[256]; /* internal strings */ 405 406 407/* 408** Mailer definition structure. 409** Every mailer known to the system is declared in this 410** structure. It defines the pathname of the mailer, some 411** flags associated with it, and the argument vector to 412** pass to it. The flags are defined in conf.c 413** 414** The argument vector is expanded before actual use. All 415** words except the first are passed through the macro 416** processor. 417*/ 418 419struct mailer 420{ 421 char *m_name; /* symbolic name of this mailer */ 422 char *m_mailer; /* pathname of the mailer to use */ 423 char *m_mtatype; /* type of this MTA */ 424 char *m_addrtype; /* type for addresses */ 425 char *m_diagtype; /* type for diagnostics */ 426 BITMAP256 m_flags; /* status flags, see below */ 427 short m_mno; /* mailer number internally */ 428 short m_nice; /* niceness to run at (mostly for prog) */ 429 char **m_argv; /* template argument vector */ 430 short m_sh_rwset; /* rewrite set: sender header addresses */ 431 short m_se_rwset; /* rewrite set: sender envelope addresses */ 432 short m_rh_rwset; /* rewrite set: recipient header addresses */ 433 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 434 char *m_eol; /* end of line string */ 435 long m_maxsize; /* size limit on message to this mailer */ 436 int m_linelimit; /* max # characters per line */ 437 int m_maxdeliveries; /* max deliveries per mailer connection */ 438 char *m_execdir; /* directory to chdir to before execv */ 439 char *m_rootdir; /* directory to chroot to before execv */ 440 uid_t m_uid; /* UID to run as */ 441 gid_t m_gid; /* GID to run as */ 442 char *m_defcharset; /* default character set */ 443 time_t m_wait; /* timeout to wait for end */ 444 int m_maxrcpt; /* max recipients per envelope client-side */ 445 short m_qgrp; /* queue group for this mailer */ 446}; 447 448/* bits for m_flags */ 449#define M_xSMTP 0x01 /* internal: {ES,S,L}MTP */ 450#define M_ESMTP 'a' /* run Extended SMTP */ 451#define M_ALIASABLE 'A' /* user can be LHS of an alias */ 452#define M_BLANKEND 'b' /* ensure blank line at end of message */ 453#define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */ 454#define M_NOCOMMENT 'c' /* don't include comment part of address */ 455#define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 456#define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 457 /* 'D' CF: include Date: */ 458#define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 459#define M_ESCFROM 'E' /* escape From lines to >From */ 460#define M_FOPT 'f' /* mailer takes picky -f flag */ 461 /* 'F' CF: include From: or Resent-From: */ 462#define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 463#define M_HST_UPPER 'h' /* preserve host case distinction */ 464#define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 465#define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 466#define M_INTERNAL 'I' /* SMTP to another sendmail site */ 467#define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 468#define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 469#define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 470#define M_LOCALMAILER 'l' /* delivery is to this host */ 471#define M_LIMITS 'L' /* must enforce SMTP line limits */ 472#define M_MUSER 'm' /* can handle multiple users at once */ 473 /* 'M' CF: include Message-Id: */ 474#define M_NHDR 'n' /* don't insert From line */ 475#define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 476#define M_RUNASRCPT 'o' /* always run mailer as recipient */ 477 /* 'O' free? */ 478#define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 479 /* 'P' CF: include Return-Path: */ 480#define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 481#define M_ROPT 'r' /* mailer takes picky -r flag */ 482#define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 483#define M_STRIPQ 's' /* strip quote chars from user/host */ 484#define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 485#define M_USR_UPPER 'u' /* preserve user case distinction */ 486#define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 487#define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 488 /* 'V' UIUC: !-relativize all addresses */ 489#define M_HASPWENT 'w' /* check for /etc/passwd entry */ 490#define M_NOHOSTSTAT 'W' /* ignore long term host status information */ 491 /* 'x' CF: include Full-Name: */ 492#define M_XDOT 'X' /* use hidden-dot algorithm */ 493 /* 'y' free? */ 494 /* 'Y' free? */ 495#define M_LMTP 'z' /* run Local Mail Transport Protocol */ 496#define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 497#define M_NOMX '0' /* turn off MX lookups */ 498#define M_NONULLS '1' /* don't send null bytes */ 499#define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 500 /* '4' free? */ 501#define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 502#define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 503#define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 504#define M_7BITS '7' /* use 7-bit path */ 505#define M_8BITS '8' /* force "just send 8" behaviour */ 506#define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 507#define M_CHECKINCLUDE ':' /* check for :include: files */ 508#define M_CHECKPROG '|' /* check for |program addresses */ 509#define M_CHECKFILE '/' /* check for /file addresses */ 510#define M_CHECKUDB '@' /* user can be user database key */ 511#define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 512#define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 513#define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 514#define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 515#define M_NOMHHACK '!' /* Don't perform HM hack dropping explicit from */ 516 517/* functions */ 518extern void initerrmailers __P((void)); 519extern void makemailer __P((char *)); 520extern void makequeue __P((char *, bool)); 521extern void runqueueevent __P((int)); 522#if _FFR_QUEUE_RUN_PARANOIA 523extern bool checkqueuerunner __P((void)); 524#endif /* _FFR_QUEUE_RUN_PARANOIA */ 525 526EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 527EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 528EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 529EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 530#if _FFR_RCPTFLAGS 531EXTERN MAILER *Mailer[MAXMAILERS * 2 + 1]; 532#else 533EXTERN MAILER *Mailer[MAXMAILERS + 1]; 534#endif 535 536/* 537** Queue group definition structure. 538** Every queue group known to the system is declared in this structure. 539** It defines the basic pathname of the queue group, some flags 540** associated with it, and the argument vector to pass to it. 541*/ 542 543struct qpaths_s 544{ 545 char *qp_name; /* name of queue dir, relative path */ 546 short qp_subdirs; /* use subdirs? */ 547 short qp_fsysidx; /* file system index of this directory */ 548# if SM_CONF_SHM 549 int qp_idx; /* index into array for queue information */ 550# endif /* SM_CONF_SHM */ 551}; 552 553typedef struct qpaths_s QPATHS; 554 555struct queuegrp 556{ 557 char *qg_name; /* symbolic name of this queue group */ 558 559 /* 560 ** For now this is the same across all queue groups. 561 ** Otherwise we have to play around with chdir(). 562 */ 563 564 char *qg_qdir; /* common component of queue directory */ 565 short qg_index; /* queue number internally, index in Queue[] */ 566 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 567 int qg_numqueues; /* number of queues in this queue */ 568 569 /* 570 ** qg_queueintvl == 0 denotes that no individual value is used. 571 ** Whatever accesses this must deal with "<= 0" as 572 ** "not set, use appropriate default". 573 */ 574 575 time_t qg_queueintvl; /* interval for queue runs */ 576 QPATHS *qg_qpaths; /* list of queue directories */ 577 BITMAP256 qg_flags; /* status flags, see below */ 578 short qg_nice; /* niceness for queue run */ 579 int qg_wgrp; /* Assigned to this work group */ 580 int qg_maxlist; /* max items in work queue for this group */ 581 int qg_curnum; /* current number of queue for queue runs */ 582 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 583 584 time_t qg_nextrun; /* time for next queue runs */ 585#if _FFR_QUEUE_GROUP_SORTORDER 586 short qg_sortorder; /* how do we sort this queuerun */ 587#endif /* _FFR_QUEUE_GROUP_SORTORDER */ 588#if 0 589 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 590 long qg_qfactor; /* slope of queue function */ 591 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 592#endif /* 0 */ 593}; 594 595/* bits for qg_flags (XXX: unused as of now) */ 596#define QD_DEFINED ((char) 1) /* queue group has been defined */ 597#define QD_FORK 'f' /* fork queue runs */ 598 599extern void filesys_update __P((void)); 600#if _FFR_ANY_FREE_FS 601extern bool filesys_free __P((long)); 602#endif /* _FFR_ANY_FREE_FS */ 603 604#if SASL 605/* 606** SASL 607*/ 608 609/* lines in authinfo file or index into SASL_AI_T */ 610# define SASL_WRONG (-1) 611# define SASL_USER 0 /* authorization id (user) */ 612# define SASL_AUTHID 1 /* authentication id */ 613# define SASL_PASSWORD 2 /* password fuer authid */ 614# define SASL_DEFREALM 3 /* realm to use */ 615# define SASL_MECHLIST 4 /* list of mechanisms to try */ 616# define SASL_ID_REALM 5 /* authid@defrealm */ 617 618/* 619** Current mechanism; this is just used to convey information between 620** invocation of SASL callback functions. 621** It must be last in the list, because it's not allocated by us 622** and hence we don't free() it. 623*/ 624# define SASL_MECH 6 625# define SASL_ENTRIES 7 /* number of entries in array */ 626 627# define SASL_USER_BIT (1 << SASL_USER) 628# define SASL_AUTHID_BIT (1 << SASL_AUTHID) 629# define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 630# define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 631# define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 632 633/* authenticated? */ 634# define SASL_NOT_AUTH 0 /* not authenticated */ 635# define SASL_PROC_AUTH 1 /* in process of authenticating */ 636# define SASL_IS_AUTH 2 /* authenticated */ 637 638/* SASL options */ 639# define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 640# if SASL >= 20101 641# define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 642# else /* SASL >= 20101 */ 643# define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 644# if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 645 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 646 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 647 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 648 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 649 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 650ERROR: change SASL_SEC_MASK_ notify sendmail.org! 651# endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 652# endif /* SASL >= 20101 */ 653# define MAXOUTLEN 8192 /* length of output buffer, should be 2^n */ 654 655/* functions */ 656extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 657extern char *iteminlist __P((char *, char *, char *)); 658# if SASL >= 20000 659extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 660extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 661# else /* SASL >= 20000 */ 662extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 663# if SASL > 10515 664extern int safesaslfile __P((void *, char *, int)); 665# else /* SASL > 10515 */ 666extern int safesaslfile __P((void *, char *)); 667# endif /* SASL > 10515 */ 668# endif /* SASL >= 20000 */ 669extern void stop_sasl_client __P((void)); 670 671/* structure to store authinfo */ 672typedef char *SASL_AI_T[SASL_ENTRIES]; 673 674EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 675EXTERN char *AuthRealm; /* AUTH realm */ 676EXTERN char *SASLInfo; /* file with AUTH info */ 677EXTERN int SASLOpts; /* options for SASL */ 678EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 679#endif /* SASL */ 680 681/* 682** Structure to store macros. 683*/ 684typedef struct 685{ 686 SM_RPOOL_T *mac_rpool; /* resource pool */ 687 BITMAP256 mac_allocated; /* storage has been alloc()? */ 688 char *mac_table[MAXMACROID + 1]; /* macros */ 689} MACROS_T; 690 691EXTERN MACROS_T GlobalMacros; 692 693/* 694** Information about currently open connections to mailers, or to 695** hosts that we have looked up recently. 696*/ 697 698#define MCI struct mailer_con_info 699 700MCI 701{ 702 unsigned long mci_flags; /* flag bits, see below */ 703 short mci_errno; /* error number on last connection */ 704 short mci_herrno; /* h_errno from last DNS lookup */ 705 short mci_exitstat; /* exit status from last connection */ 706 short mci_state; /* SMTP state */ 707 int mci_deliveries; /* delivery attempts for connection */ 708 long mci_maxsize; /* max size this server will accept */ 709 SM_FILE_T *mci_in; /* input side of connection */ 710 SM_FILE_T *mci_out; /* output side of connection */ 711 pid_t mci_pid; /* process id of subordinate proc */ 712 char *mci_phase; /* SMTP phase string */ 713 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 714 char *mci_host; /* host name */ 715 char *mci_status; /* DSN status to be copied to addrs */ 716 char *mci_rstatus; /* SMTP status to be copied to addrs */ 717 time_t mci_lastuse; /* last usage time */ 718 SM_FILE_T *mci_statfile; /* long term status file */ 719 char *mci_heloname; /* name to use as HELO arg */ 720 long mci_min_by; /* minimum DELIVERBY */ 721 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 722 char *mci_tolist; /* list of valid recipients */ 723 SM_RPOOL_T *mci_rpool; /* resource pool */ 724#if PIPELINING 725 int mci_okrcpts; /* number of valid recipients */ 726 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 727#endif /* PIPELINING */ 728#if SASL 729 SASL_AI_T mci_sai; /* authentication info */ 730 bool mci_sasl_auth; /* authenticated? */ 731 int mci_sasl_string_len; 732 char *mci_sasl_string; /* sasl reply string */ 733 char *mci_saslcap; /* SASL list of mechanisms */ 734 sasl_conn_t *mci_conn; /* SASL connection */ 735#endif /* SASL */ 736#if STARTTLS 737 SSL *mci_ssl; /* SSL connection */ 738#endif /* STARTTLS */ 739 MACROS_T mci_macro; /* macro definitions */ 740}; 741 742 743/* flag bits */ 744#define MCIF_VALID 0x00000001 /* this entry is valid */ 745/* 0x00000002 unused, was MCIF_TEMP */ 746#define MCIF_CACHED 0x00000004 /* currently in open cache */ 747#define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 748#define MCIF_EXPN 0x00000010 /* EXPN command supported */ 749#define MCIF_SIZE 0x00000020 /* SIZE option supported */ 750#define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 751#define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 752/* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 753#define MCIF_INHEADER 0x00000200 /* currently outputing header */ 754#define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 755#define MCIF_DSN 0x00000800 /* DSN extension supported */ 756#define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 757#define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 758#define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 759#define MCIF_AUTH 0x00008000 /* AUTH= supported */ 760#define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 761#define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 762#define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 763#define MCIF_VERB 0x00080000 /* VERB supported */ 764#if STARTTLS 765#define MCIF_TLS 0x00100000 /* STARTTLS supported */ 766#define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 767#else /* STARTTLS */ 768#define MCIF_TLS 0 769#define MCIF_TLSACT 0 770#endif /* STARTTLS */ 771#define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 772#if _FFR_IGNORE_EXT_ON_HELO 773# define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 774#endif /* _FFR_IGNORE_EXT_ON_HELO */ 775#define MCIF_INLONGLINE 0x01000000 /* in the middle of a long line */ 776#define MCIF_AUTH2 0x02000000 /* got 2 AUTH lines */ 777#define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 778#if _FFR_HANDLE_HDR_RW_TEMPFAIL 779/* an error is not sticky (if put{header,body}() etc fail) */ 780# define MCIF_NOTSTICKY 0x20000000 781#else 782# define MCIF_NOTSTICKY 0 783#endif 784 785#define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS | MCIF_AUTH2) 786 787/* states */ 788#define MCIS_CLOSED 0 /* no traffic on this connection */ 789#define MCIS_OPENING 1 /* sending initial protocol */ 790#define MCIS_OPEN 2 /* open, initial protocol sent */ 791#define MCIS_MAIL 3 /* MAIL command sent */ 792#define MCIS_RCPT 4 /* RCPT commands being sent */ 793#define MCIS_DATA 5 /* DATA command sent */ 794#define MCIS_QUITING 6 /* running quit protocol */ 795#define MCIS_SSD 7 /* service shutting down */ 796#define MCIS_ERROR 8 /* I/O error on connection */ 797 798/* functions */ 799extern void mci_cache __P((MCI *)); 800extern void mci_close __P((MCI *, char *where)); 801extern void mci_dump __P((SM_FILE_T *, MCI *, bool)); 802extern void mci_dump_all __P((SM_FILE_T *, bool)); 803extern void mci_flush __P((bool, MCI *)); 804extern void mci_clr_extensions __P((MCI *)); 805extern MCI *mci_get __P((char *, MAILER *)); 806extern int mci_lock_host __P((MCI *)); 807extern bool mci_match __P((char *, MAILER *)); 808extern int mci_print_persistent __P((char *, char *)); 809extern int mci_purge_persistent __P((char *, char *)); 810extern MCI **mci_scan __P((MCI *)); 811extern void mci_setstat __P((MCI *, int, char *, char *)); 812extern void mci_store_persistent __P((MCI *)); 813extern int mci_traverse_persistent __P((int (*)(char *, char *), char *)); 814extern void mci_unlock_host __P((MCI *)); 815 816EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 817EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 818EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 819 820/* 821** Header structure. 822** This structure is used internally to store header items. 823*/ 824 825struct header 826{ 827 char *h_field; /* the name of the field */ 828 char *h_value; /* the value of that field */ 829 struct header *h_link; /* the next header */ 830 unsigned char h_macro; /* include header if macro defined */ 831 unsigned long h_flags; /* status bits, see below */ 832 BITMAP256 h_mflags; /* m_flags bits needed */ 833}; 834 835typedef struct header HDR; 836 837/* 838** Header information structure. 839** Defined in conf.c, this struct declares the header fields 840** that have some magic meaning. 841*/ 842 843struct hdrinfo 844{ 845 char *hi_field; /* the name of the field */ 846 unsigned long hi_flags; /* status bits, see below */ 847 char *hi_ruleset; /* validity check ruleset */ 848}; 849 850extern struct hdrinfo HdrInfo[]; 851 852/* bits for h_flags and hi_flags */ 853#define H_EOH 0x00000001 /* field terminates header */ 854#define H_RCPT 0x00000002 /* contains recipient addresses */ 855#define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 856#define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 857#define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 858#define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 859#define H_FORCE 0x00000040 /* force this field, even if default */ 860#define H_TRACE 0x00000080 /* this field contains trace information */ 861#define H_FROM 0x00000100 /* this is a from-type field */ 862#define H_VALID 0x00000200 /* this field has a validated value */ 863#define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 864#define H_ERRORSTO 0x00000800 /* field has error address info */ 865#define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 866#define H_CTYPE 0x00002000 /* this is a content-type field */ 867#define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 868#define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 869#define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 870#define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 871#define H_USER 0x00040000 /* header came from the user/SMTP */ 872 873/* bits for chompheader() */ 874#define CHHDR_DEF 0x0001 /* default header */ 875#define CHHDR_CHECK 0x0002 /* call ruleset for header */ 876#define CHHDR_USER 0x0004 /* header from user */ 877#define CHHDR_QUEUE 0x0008 /* header from queue file */ 878 879/* functions */ 880extern void addheader __P((char *, char *, int, ENVELOPE *, bool)); 881extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 882extern bool commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *, int)); 883extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 884extern void eatheader __P((ENVELOPE *, bool, bool)); 885extern char *hvalue __P((char *, HDR *)); 886extern void insheader __P((int, char *, char *, int, ENVELOPE *, bool)); 887extern bool isheader __P((char *)); 888extern bool putfromline __P((MCI *, ENVELOPE *)); 889extern void setupheaders __P((void)); 890 891/* 892** Performance monitoring 893*/ 894 895#define TIMERS struct sm_timers 896 897TIMERS 898{ 899 TIMER ti_overall; /* the whole process */ 900}; 901 902 903#define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 904#define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 905 906/* 907** Envelope structure. 908** This structure defines the message itself. There is usually 909** only one of these -- for the message that we originally read 910** and which is our primary interest -- but other envelopes can 911** be generated during processing. For example, error messages 912** will have their own envelope. 913*/ 914 915struct envelope 916{ 917 HDR *e_header; /* head of header list */ 918 long e_msgpriority; /* adjusted priority of this message */ 919 time_t e_ctime; /* time message appeared in the queue */ 920 char *e_to; /* (list of) target person(s) */ 921 ADDRESS e_from; /* the person it is from */ 922 char *e_sender; /* e_from.q_paddr w comments stripped */ 923 char **e_fromdomain; /* the domain part of the sender */ 924 ADDRESS *e_sendqueue; /* list of message recipients */ 925 ADDRESS *e_errorqueue; /* the queue for error responses */ 926 927 /* 928 ** Overflow detection is based on < 0, so don't change this 929 ** to unsigned. We don't use unsigned and == ULONG_MAX because 930 ** some libc's don't have strtoul(), see mail_esmtp_args(). 931 */ 932 933 long e_msgsize; /* size of the message in bytes */ 934 char *e_msgid; /* message id (for logging) */ 935 unsigned long e_flags; /* flags, see below */ 936 int e_nrcpts; /* number of recipients */ 937 short e_class; /* msg class (priority, junk, etc.) */ 938 short e_hopcount; /* number of times processed */ 939 short e_nsent; /* number of sends since checkpoint */ 940 short e_sendmode; /* message send mode */ 941 short e_errormode; /* error return mode */ 942 short e_timeoutclass; /* message timeout class */ 943 bool (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 944 /* function to put header of message */ 945 bool (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 946 /* function to put body of message */ 947 ENVELOPE *e_parent; /* the message this one encloses */ 948 ENVELOPE *e_sibling; /* the next envelope of interest */ 949 char *e_bodytype; /* type of message body */ 950 SM_FILE_T *e_dfp; /* data file */ 951 char *e_id; /* code for this entry in queue */ 952#if _FFR_SESSID 953 char *e_sessid; /* session ID for this envelope */ 954#endif /* _FFR_SESSID */ 955 int e_qgrp; /* queue group (index into queues) */ 956 int e_qdir; /* index into queue directories */ 957 int e_dfqgrp; /* data file queue group index */ 958 int e_dfqdir; /* data file queue directory index */ 959 int e_xfqgrp; /* queue group (index into queues) */ 960 int e_xfqdir; /* index into queue directories (xf) */ 961 SM_FILE_T *e_xfp; /* transcript file */ 962 SM_FILE_T *e_lockfp; /* the lock file for this message */ 963 char *e_message; /* error message; readonly; NULL, 964 * or allocated from e_rpool */ 965 char *e_statmsg; /* stat msg (changes per delivery). 966 * readonly. NULL or allocated from 967 * e_rpool. */ 968 char *e_quarmsg; /* why envelope is quarantined */ 969 char e_qfletter; /* queue file letter on disk */ 970 char *e_msgboundary; /* MIME-style message part boundary */ 971 char *e_origrcpt; /* original recipient (one only) */ 972 char *e_envid; /* envelope id from MAIL FROM: line */ 973 char *e_status; /* DSN status for this message */ 974 time_t e_dtime; /* time of last delivery attempt */ 975 int e_ntries; /* number of delivery attempts */ 976 dev_t e_dfdev; /* data file device (crash recovery) */ 977 ino_t e_dfino; /* data file inode (crash recovery) */ 978 MACROS_T e_macro; /* macro definitions */ 979 MCI *e_mci; /* connection info */ 980 char *e_auth_param; /* readonly; NULL or static storage or 981 * allocated from e_rpool */ 982 TIMERS e_timers; /* per job timers */ 983 long e_deliver_by; /* deliver by */ 984 int e_dlvr_flag; /* deliver by flag */ 985 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 986 unsigned int e_features; /* server features */ 987#define ENHSC_LEN 11 988#if _FFR_MILTER_ENHSC 989 char e_enhsc[ENHSC_LEN]; /* enhanced status code */ 990#endif /* _FFR_MILTER_ENHSC */ 991#if _FFR_ERRCODE 992 /* smtp error codes during delivery */ 993 int e_rcode; /* reply code */ 994 char e_renhsc[ENHSC_LEN]; /* enhanced status code */ 995 char *e_text; /* reply text */ 996#endif /* _FFR_ERRCODE */ 997}; 998 999#define PRT_NONNEGL(v) ((v) < 0 ? LONG_MAX : (v)) 1000 1001/* values for e_flags */ 1002#define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 1003#define EF_INQUEUE 0x00000002L /* this message is fully queued */ 1004#define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 1005#define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 1006#define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 1007#define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 1008#define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 1009#define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 1010#define EF_RESENT 0x00000100L /* this message is being forwarded */ 1011#define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 1012#define EF_WARNING 0x00000400L /* warning message has been sent */ 1013#define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 1014#define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 1015#define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 1016#define EF_METOO 0x00004000L /* send to me too */ 1017#define EF_LOGSENDER 0x00008000L /* need to log the sender */ 1018#define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 1019#define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 1020#define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 1021#define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 1022#define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 1023#define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 1024#define EF_IS_MIME 0x00400000L /* really is a MIME message */ 1025#define EF_DONT_MIME 0x00800000L /* never MIME this message */ 1026#define EF_DISCARD 0x01000000L /* discard the message */ 1027#define EF_TOOBIG 0x02000000L /* message is too big */ 1028#define EF_SPLIT 0x04000000L /* envelope has been split */ 1029#define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 1030#define EF_TOODEEP 0x10000000L /* message is nested too deep */ 1031 1032#define DLVR_NOTIFY 0x01 1033#define DLVR_RETURN 0x02 1034#define DLVR_TRACE 0x10 1035#define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 1036#define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 1037#define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 1038#define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 1039 1040#define BODYTYPE_NONE (0) 1041#define BODYTYPE_7BIT (1) 1042#define BODYTYPE_8BITMIME (2) 1043#define BODYTYPE_ILLEGAL (-1) 1044#define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 1045 1046extern ENVELOPE BlankEnvelope; 1047 1048/* functions */ 1049extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 1050extern int dropenvelope __P((ENVELOPE *, bool, bool)); 1051extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 1052extern void clrsessenvelope __P((ENVELOPE *)); 1053extern void printenvflags __P((ENVELOPE *)); 1054extern bool putbody __P((MCI *, ENVELOPE *, char *)); 1055extern bool putheader __P((MCI *, HDR *, ENVELOPE *, int)); 1056 1057/* 1058** Message priority classes. 1059** 1060** The message class is read directly from the Priority: header 1061** field in the message. 1062** 1063** CurEnv->e_msgpriority is the number of bytes in the message plus 1064** the creation time (so that jobs ``tend'' to be ordered correctly), 1065** adjusted by the message class, the number of recipients, and the 1066** amount of time the message has been sitting around. This number 1067** is used to order the queue. Higher values mean LOWER priority. 1068** 1069** Each priority class point is worth WkClassFact priority points; 1070** each recipient is worth WkRecipFact priority points. Each time 1071** we reprocess a message the priority is adjusted by WkTimeFact. 1072** WkTimeFact should normally decrease the priority so that jobs 1073** that have historically failed will be run later; thanks go to 1074** Jay Lepreau at Utah for pointing out the error in my thinking. 1075** 1076** The "class" is this number, unadjusted by the age or size of 1077** this message. Classes with negative representations will have 1078** error messages thrown away if they are not local. 1079*/ 1080 1081struct priority 1082{ 1083 char *pri_name; /* external name of priority */ 1084 int pri_val; /* internal value for same */ 1085}; 1086 1087EXTERN int NumPriorities; /* pointer into Priorities */ 1088EXTERN struct priority Priorities[MAXPRIORITIES]; 1089 1090/* 1091** Rewrite rules. 1092*/ 1093 1094struct rewrite 1095{ 1096 char **r_lhs; /* pattern match */ 1097 char **r_rhs; /* substitution value */ 1098 struct rewrite *r_next;/* next in chain */ 1099 int r_line; /* rule line in sendmail.cf */ 1100}; 1101 1102/* 1103** Special characters in rewriting rules. 1104** These are used internally only. 1105** The COND* rules are actually used in macros rather than in 1106** rewriting rules, but are given here because they 1107** cannot conflict. 1108*/ 1109 1110/* "out of band" indicator */ 1111/* sm/sendmail.h #define METAQUOTE ((unsigned char)0377) quotes the next octet */ 1112 1113/* left hand side items */ 1114#define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1115#define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1116#define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1117#define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1118#define MATCHNCLASS ((unsigned char)0224) /* match tokens not in class */ 1119 1120/* right hand side items */ 1121#define MATCHREPL ((unsigned char)0225) /* RHS replacement for above */ 1122#define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1123#define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1124#define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1125#define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1126 1127/* conditionals in macros (anywhere) */ 1128#define CONDIF ((unsigned char)0232) /* conditional if-then */ 1129#define CONDELSE ((unsigned char)0233) /* conditional else */ 1130#define CONDFI ((unsigned char)0234) /* conditional fi */ 1131 1132/* bracket characters for RHS host name lookup */ 1133#define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1134#define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1135 1136/* bracket characters for RHS generalized lookup */ 1137#define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1138#define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1139 1140/* macro substitution characters (anywhere) */ 1141#define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1142#define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1143 1144/* to make the code clearer */ 1145#define MATCHZERO CANONHOST 1146 1147#define MAXMATCH 9 /* max params per rewrite */ 1148#define MAX_MAP_ARGS 10 /* max arguments for map */ 1149 1150/* external <==> internal mapping table */ 1151struct metamac 1152{ 1153 char metaname; /* external code (after $) */ 1154 unsigned char metaval; /* internal code (as above) */ 1155}; 1156 1157/* values for macros with external names only */ 1158#define MID_OPMODE 0202 /* operation mode */ 1159 1160/* functions */ 1161#if SM_HEAP_CHECK 1162extern void 1163macdefine_tagged __P(( 1164 MACROS_T *_mac, 1165 ARGCLASS_T _vclass, 1166 int _id, 1167 char *_value, 1168 char *_file, 1169 int _line, 1170 int _group)); 1171# define macdefine(mac,c,id,v) \ 1172 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1173#else /* SM_HEAP_CHECK */ 1174extern void 1175macdefine __P(( 1176 MACROS_T *_mac, 1177 ARGCLASS_T _vclass, 1178 int _id, 1179 char *_value)); 1180# define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1181#endif /* SM_HEAP_CHECK */ 1182extern void macset __P((MACROS_T *, int, char *)); 1183#define macget(mac, i) (mac)->mac_table[i] 1184extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1185extern int macid_parse __P((char *, char **)); 1186#define macid(name) macid_parse(name, NULL) 1187extern char *macname __P((int)); 1188extern char *macvalue __P((int, ENVELOPE *)); 1189extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *, ADDRESS *, char **)); 1190extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1191extern void setclass __P((int, char *)); 1192extern int strtorwset __P((char *, char **, int)); 1193extern char *translate_dollars __P((char *, char *, int *)); 1194extern bool wordinclass __P((char *, int)); 1195 1196/* 1197** Name canonification short circuit. 1198** 1199** If the name server for a host is down, the process of trying to 1200** canonify the name can hang. This is similar to (but alas, not 1201** identical to) looking up the name for delivery. This stab type 1202** caches the result of the name server lookup so we don't hang 1203** multiple times. 1204*/ 1205 1206#define NAMECANON struct _namecanon 1207 1208NAMECANON 1209{ 1210 short nc_errno; /* cached errno */ 1211 short nc_herrno; /* cached h_errno */ 1212 short nc_stat; /* cached exit status code */ 1213 short nc_flags; /* flag bits */ 1214 char *nc_cname; /* the canonical name */ 1215 time_t nc_exp; /* entry expires at */ 1216}; 1217 1218/* values for nc_flags */ 1219#define NCF_VALID 0x0001 /* entry valid */ 1220 1221/* hostsignature structure */ 1222 1223struct hostsig_t 1224{ 1225 char *hs_sig; /* hostsignature */ 1226 time_t hs_exp; /* entry expires at */ 1227}; 1228 1229typedef struct hostsig_t HOSTSIG_T; 1230 1231/* 1232** The standard udp packet size PACKETSZ (512) is not sufficient for some 1233** nameserver answers containing very many resource records. The resolver 1234** may switch to tcp and retry if it detects udp packet overflow. 1235** Also note that the resolver routines res_query and res_search return 1236** the size of the *un*truncated answer in case the supplied answer buffer 1237** it not big enough to accommodate the entire answer. 1238*/ 1239 1240# ifndef MAXPACKET 1241# define MAXPACKET 8192 /* max packet size used internally by BIND */ 1242# endif /* ! MAXPACKET */ 1243 1244/* 1245** The resolver functions res_{send,query,querydomain} expect the 1246** answer buffer to be aligned, but some versions of gcc4 reverse 1247** 25 years of history and no longer align char buffers on the 1248** stack, resulting in crashes on strict-alignment platforms. Use 1249** this union when putting the buffer on the stack to force the 1250** alignment, then cast to (HEADER *) or (unsigned char *) as needed. 1251*/ 1252typedef union 1253{ 1254 HEADER qb1; 1255 unsigned char qb2[MAXPACKET]; 1256} querybuf; 1257 1258/* functions */ 1259extern bool getcanonname __P((char *, int, bool, int *)); 1260extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1261extern char *hostsignature __P((MAILER *, char *)); 1262extern int getfallbackmxrr __P((char *)); 1263 1264/* 1265** Mapping functions 1266** 1267** These allow arbitrary mappings in the config file. The idea 1268** (albeit not the implementation) comes from IDA sendmail. 1269*/ 1270 1271#define MAPCLASS struct _mapclass 1272#define MAP struct _map 1273#define MAXMAPACTIONS 5 /* size of map_actions array */ 1274 1275 1276/* 1277** An actual map. 1278*/ 1279 1280MAP 1281{ 1282 MAPCLASS *map_class; /* the class of this map */ 1283 MAPCLASS *map_orgclass; /* the original class of this map */ 1284 char *map_mname; /* name of this map */ 1285 long map_mflags; /* flags, see below */ 1286 char *map_file; /* the (nominal) filename */ 1287 ARBPTR_T map_db1; /* the open database ptr */ 1288 ARBPTR_T map_db2; /* an "extra" database pointer */ 1289 char *map_keycolnm; /* key column name */ 1290 char *map_valcolnm; /* value column name */ 1291 unsigned char map_keycolno; /* key column number */ 1292 unsigned char map_valcolno; /* value column number */ 1293 char map_coldelim; /* column delimiter */ 1294 char map_spacesub; /* spacesub */ 1295 char *map_app; /* to append to successful matches */ 1296 char *map_tapp; /* to append to "tempfail" matches */ 1297 char *map_domain; /* the (nominal) NIS domain */ 1298 char *map_rebuild; /* program to run to do auto-rebuild */ 1299 time_t map_mtime; /* last database modification time */ 1300 time_t map_timeout; /* timeout for map accesses */ 1301 int map_retry; /* # of retries for map accesses */ 1302 pid_t map_pid; /* PID of process which opened map */ 1303 int map_lockfd; /* auxiliary lock file descriptor */ 1304 short map_specificity; /* specificity of aliases */ 1305 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1306 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1307}; 1308 1309 1310/* bit values for map_mflags */ 1311#define MF_VALID 0x00000001 /* this entry is valid */ 1312#define MF_INCLNULL 0x00000002 /* include null byte in key */ 1313#define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1314#define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1315#define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1316#define MF_OPEN 0x00000020 /* this entry is open */ 1317#define MF_WRITABLE 0x00000040 /* open for writing */ 1318#define MF_ALIAS 0x00000080 /* this is an alias file */ 1319#define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1320#define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1321#define MF_LOCKED 0x00000400 /* this map is currently locked */ 1322#define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1323#define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1324#define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1325/* 0x00004000 */ 1326#define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1327#define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1328#define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1329#define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1330#define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1331#define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1332#define MF_SINGLEDN 0x00200000 /* only one match, but multi values */ 1333#define MF_FILECLASS 0x00400000 /* this is a file class map */ 1334#define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1335#define MF_CLOSING 0x01000000 /* map is being closed */ 1336 1337#define DYNOPENMAP(map) \ 1338 do \ 1339 { \ 1340 if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1341 { \ 1342 if (!openmap(map)) \ 1343 return NULL; \ 1344 } \ 1345 } while (0) 1346 1347 1348/* indices for map_actions */ 1349#define MA_NOTFOUND 0 /* member map returned "not found" */ 1350#define MA_UNAVAIL 1 /* member map is not available */ 1351#define MA_TRYAGAIN 2 /* member map returns temp failure */ 1352 1353/* 1354** The class of a map -- essentially the functions to call 1355*/ 1356 1357MAPCLASS 1358{ 1359 char *map_cname; /* name of this map class */ 1360 char *map_ext; /* extension for database file */ 1361 short map_cflags; /* flag bits, see below */ 1362 bool (*map_parse)__P((MAP *, char *)); 1363 /* argument parsing function */ 1364 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1365 /* lookup function */ 1366 void (*map_store)__P((MAP *, char *, char *)); 1367 /* store function */ 1368 bool (*map_open)__P((MAP *, int)); 1369 /* open function */ 1370 void (*map_close)__P((MAP *)); 1371 /* close function */ 1372}; 1373 1374/* bit values for map_cflags */ 1375#define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1376#define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1377#define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1378#define MCF_OPTFILE 0x0008 /* file name is optional */ 1379#define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1380 1381/* functions */ 1382extern void closemaps __P((bool)); 1383extern bool impl_map_open __P((MAP *, int)); 1384extern void initmaps __P((void)); 1385extern MAP *makemapentry __P((char *)); 1386extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1387extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1388#if NETINFO 1389extern char *ni_propval __P((char *, char *, char *, char *, int)); 1390#endif /* NETINFO */ 1391extern bool openmap __P((MAP *)); 1392extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1393#if USERDB 1394extern void _udbx_close __P((void)); 1395extern char *udbsender __P((char *, SM_RPOOL_T *)); 1396#endif /* USERDB */ 1397 1398/* 1399** LDAP related items 1400*/ 1401#if LDAPMAP 1402/* struct defining LDAP Auth Methods */ 1403struct lamvalues 1404{ 1405 char *lam_name; /* name of LDAP auth method */ 1406 int lam_code; /* numeric code */ 1407}; 1408 1409/* struct defining LDAP Alias Dereferencing */ 1410struct ladvalues 1411{ 1412 char *lad_name; /* name of LDAP alias dereferencing method */ 1413 int lad_code; /* numeric code */ 1414}; 1415 1416/* struct defining LDAP Search Scope */ 1417struct lssvalues 1418{ 1419 char *lss_name; /* name of LDAP search scope */ 1420 int lss_code; /* numeric code */ 1421}; 1422 1423/* functions */ 1424extern bool ldapmap_parseargs __P((MAP *, char *)); 1425extern void ldapmap_set_defaults __P((char *)); 1426#endif /* LDAPMAP */ 1427 1428/* 1429** PH related items 1430*/ 1431 1432#if PH_MAP 1433 1434# include <phclient.h> 1435 1436struct ph_map_struct 1437{ 1438 char *ph_servers; /* list of ph servers */ 1439 char *ph_field_list; /* list of fields to search for match */ 1440 PH *ph; /* PH server handle */ 1441 int ph_fastclose; /* send "quit" command on close */ 1442 time_t ph_timeout; /* timeout interval */ 1443}; 1444typedef struct ph_map_struct PH_MAP_STRUCT; 1445 1446#endif /* PH_MAP */ 1447 1448/* 1449** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1450** we are forced to declare a supertype here. 1451*/ 1452 1453#if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1454union bigsockaddr 1455{ 1456 struct sockaddr sa; /* general version */ 1457# if NETUNIX 1458 struct sockaddr_un sunix; /* UNIX family */ 1459# endif /* NETUNIX */ 1460# if NETINET 1461 struct sockaddr_in sin; /* INET family */ 1462# endif /* NETINET */ 1463# if NETINET6 1464 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1465# endif /* NETINET6 */ 1466# if NETISO 1467 struct sockaddr_iso siso; /* ISO family */ 1468# endif /* NETISO */ 1469# if NETNS 1470 struct sockaddr_ns sns; /* XNS family */ 1471# endif /* NETNS */ 1472# if NETX25 1473 struct sockaddr_x25 sx25; /* X.25 family */ 1474# endif /* NETX25 */ 1475}; 1476 1477# define SOCKADDR union bigsockaddr 1478 1479/* functions */ 1480extern char *anynet_ntoa __P((SOCKADDR *)); 1481# if NETINET6 1482extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1483extern int anynet_pton __P((int, const char *, void *)); 1484# endif /* NETINET6 */ 1485extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1486extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1487# if SASL >= 20000 1488extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1489# endif /* SASL >= 20000 */ 1490 1491#endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1492 1493/* 1494** Process List (proclist) 1495*/ 1496 1497#define NO_PID ((pid_t) 0) 1498#ifndef PROC_LIST_SEG 1499# define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1500#endif /* ! PROC_LIST_SEG */ 1501 1502/* process types */ 1503#define PROC_NONE 0 1504#define PROC_DAEMON 1 1505#define PROC_DAEMON_CHILD 2 1506#define PROC_QUEUE 3 1507#define PROC_QUEUE_CHILD 3 1508#define PROC_CONTROL 4 1509#define PROC_CONTROL_CHILD 5 1510 1511/* functions */ 1512extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *)); 1513extern void proc_list_clear __P((void)); 1514extern void proc_list_display __P((SM_FILE_T *, char *)); 1515extern void proc_list_drop __P((pid_t, int, int *)); 1516extern void proc_list_probe __P((void)); 1517extern void proc_list_set __P((pid_t, char *)); 1518extern void proc_list_signal __P((int, int)); 1519 1520/* 1521** Symbol table definitions 1522*/ 1523 1524struct symtab 1525{ 1526 char *s_name; /* name to be entered */ 1527 short s_symtype; /* general type (see below) */ 1528 struct symtab *s_next; /* pointer to next in chain */ 1529 union 1530 { 1531 BITMAP256 sv_class; /* bit-map of word classes */ 1532 MAILER *sv_mailer; /* pointer to mailer */ 1533 char *sv_alias; /* alias */ 1534 MAPCLASS sv_mapclass; /* mapping function class */ 1535 MAP sv_map; /* mapping function */ 1536 HOSTSIG_T sv_hostsig; /* host signature */ 1537 MCI sv_mci; /* mailer connection info */ 1538 NAMECANON sv_namecanon; /* canonical name cache */ 1539 int sv_macro; /* macro name => id mapping */ 1540 int sv_ruleset; /* ruleset index */ 1541 struct hdrinfo sv_header; /* header metainfo */ 1542 char *sv_service[MAXMAPSTACK]; /* service switch */ 1543#if LDAPMAP 1544 MAP *sv_lmap; /* Maps for LDAP connection */ 1545#endif /* LDAPMAP */ 1546#if SOCKETMAP 1547 MAP *sv_socketmap; /* Maps for SOCKET connection */ 1548#endif /* SOCKETMAP */ 1549#if MILTER 1550 struct milter *sv_milter; /* milter filter name */ 1551#endif /* MILTER */ 1552 QUEUEGRP *sv_queue; /* pointer to queue */ 1553 } s_value; 1554}; 1555 1556typedef struct symtab STAB; 1557 1558/* symbol types */ 1559#define ST_UNDEF 0 /* undefined type */ 1560#define ST_CLASS 1 /* class map */ 1561/* #define ST_unused 2 UNUSED */ 1562#define ST_MAILER 3 /* a mailer header */ 1563#define ST_ALIAS 4 /* an alias */ 1564#define ST_MAPCLASS 5 /* mapping function class */ 1565#define ST_MAP 6 /* mapping function */ 1566#define ST_HOSTSIG 7 /* host signature */ 1567#define ST_NAMECANON 8 /* cached canonical name */ 1568#define ST_MACRO 9 /* macro name to id mapping */ 1569#define ST_RULESET 10 /* ruleset index */ 1570#define ST_SERVICE 11 /* service switch entry */ 1571#define ST_HEADER 12 /* special header flags */ 1572#if LDAPMAP 1573# define ST_LMAP 13 /* List head of maps for LDAP connection */ 1574#endif /* LDAPMAP */ 1575#if MILTER 1576# define ST_MILTER 14 /* milter filter */ 1577#endif /* MILTER */ 1578#define ST_QUEUE 15 /* a queue entry */ 1579 1580#if SOCKETMAP 1581# define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */ 1582#endif /* SOCKETMAP */ 1583 1584/* This entry must be last */ 1585#define ST_MCI 17 /* mailer connection info (offset) */ 1586 1587#define s_class s_value.sv_class 1588#define s_mailer s_value.sv_mailer 1589#define s_alias s_value.sv_alias 1590#define s_mci s_value.sv_mci 1591#define s_mapclass s_value.sv_mapclass 1592#define s_hostsig s_value.sv_hostsig 1593#define s_map s_value.sv_map 1594#define s_namecanon s_value.sv_namecanon 1595#define s_macro s_value.sv_macro 1596#define s_ruleset s_value.sv_ruleset 1597#define s_service s_value.sv_service 1598#define s_header s_value.sv_header 1599#if LDAPMAP 1600# define s_lmap s_value.sv_lmap 1601#endif /* LDAPMAP */ 1602#if SOCKETMAP 1603# define s_socketmap s_value.sv_socketmap 1604#endif /* SOCKETMAP */ 1605#if MILTER 1606# define s_milter s_value.sv_milter 1607#endif /* MILTER */ 1608#define s_quegrp s_value.sv_queue 1609 1610/* opcodes to stab */ 1611#define ST_FIND 0 /* find entry */ 1612#define ST_ENTER 1 /* enter if not there */ 1613 1614/* functions */ 1615extern STAB *stab __P((char *, int, int)); 1616extern void stabapply __P((void (*)(STAB *, int), int)); 1617 1618/* 1619** Operation, send, error, and MIME modes 1620** 1621** The operation mode describes the basic operation of sendmail. 1622** This can be set from the command line, and is "send mail" by 1623** default. 1624** 1625** The send mode tells how to send mail. It can be set in the 1626** configuration file. Its setting determines how quickly the 1627** mail will be delivered versus the load on your system. If the 1628** -v (verbose) flag is given, it will be forced to SM_DELIVER 1629** mode. 1630** 1631** The error mode tells how to return errors. 1632*/ 1633 1634#define MD_DELIVER 'm' /* be a mail sender */ 1635#define MD_SMTP 's' /* run SMTP on standard input */ 1636#define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1637#define MD_DAEMON 'd' /* run as a daemon */ 1638#define MD_FGDAEMON 'D' /* run daemon in foreground */ 1639#define MD_LOCAL 'l' /* like daemon, but localhost only */ 1640#define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1641#define MD_TEST 't' /* test mode: resolve addrs only */ 1642#define MD_INITALIAS 'i' /* initialize alias database */ 1643#define MD_PRINT 'p' /* print the queue */ 1644#define MD_PRINTNQE 'P' /* print number of entries in queue */ 1645#define MD_FREEZE 'z' /* freeze the configuration file */ 1646#define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1647#define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1648#define MD_QUEUERUN 'q' /* queue run */ 1649#define MD_CHECKCONFIG 'C' /* check configuration file */ 1650 1651#if _FFR_LOCAL_DAEMON 1652EXTERN bool LocalDaemon; 1653# if NETINET6 1654EXTERN bool V6LoopbackAddrFound; /* found an IPv6 loopback address */ 1655# define SETV6LOOPBACKADDRFOUND(sa) \ 1656 do \ 1657 { \ 1658 if (isloopback(sa)) \ 1659 V6LoopbackAddrFound = true; \ 1660 } while (0) 1661# endif /* NETINET6 */ 1662#else /* _FFR_LOCAL_DAEMON */ 1663# define LocalDaemon false 1664# define V6LoopbackAddrFound false 1665# define SETV6LOOPBACKADDRFOUND(sa) 1666#endif /* _FFR_LOCAL_DAEMON */ 1667 1668/* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1669 1670/* values for e_sendmode -- send modes */ 1671#define SM_DELIVER 'i' /* interactive delivery */ 1672#if _FFR_PROXY 1673#define SM_PROXY_REQ 's' /* synchronous mode requested */ 1674#define SM_PROXY 'S' /* synchronous mode activated */ 1675#endif /* _FFR_PROXY */ 1676#define SM_FORK 'b' /* deliver in background */ 1677#if _FFR_DM_ONE 1678#define SM_DM_ONE 'o' /* deliver first TA in background, then queue */ 1679#endif /* _FFR_DM_ONE */ 1680#define SM_QUEUE 'q' /* queue, don't deliver */ 1681#define SM_DEFER 'd' /* defer map lookups as well as queue */ 1682#define SM_VERIFY 'v' /* verify only (used internally) */ 1683#define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */ 1684#if _FFR_PROXY 1685# define SM_IS_INTERACTIVE(m) ((m) == SM_DELIVER || (m) == SM_PROXY_REQ || (m) == SM_PROXY) 1686#else /* _FFR_PROXY */ 1687# define SM_IS_INTERACTIVE(m) ((m) == SM_DELIVER) 1688#endif /* _FFR_PROXY */ 1689 1690#define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1691 1692/* used only as a parameter to sendall */ 1693#define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1694 1695/* functions */ 1696extern void set_delivery_mode __P((int, ENVELOPE *)); 1697 1698/* values for e_errormode -- error handling modes */ 1699#define EM_PRINT 'p' /* print errors */ 1700#define EM_MAIL 'm' /* mail back errors */ 1701#define EM_WRITE 'w' /* write back errors */ 1702#define EM_BERKNET 'e' /* special berknet processing */ 1703#define EM_QUIET 'q' /* don't print messages (stat only) */ 1704 1705 1706/* bit values for MimeMode */ 1707#define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1708#define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1709#define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1710 1711 1712/* how to handle messages without any recipient addresses */ 1713#define NRA_NO_ACTION 0 /* just leave it as is */ 1714#define NRA_ADD_TO 1 /* add To: header */ 1715#define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1716#define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1717#define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1718 1719 1720/* flags to putxline */ 1721#define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1722#define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1723#define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1724#define PXLF_HEADER 0x0004 /* map newlines in headers */ 1725#define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1726#define PXLF_STRIPMQUOTE 0x0010 /* strip METAQUOTEs */ 1727 1728/* 1729** Privacy flags 1730** These are bit values for the PrivacyFlags word. 1731*/ 1732 1733#define PRIV_PUBLIC 0 /* what have I got to hide? */ 1734#define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1735#define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1736#define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1737#define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1738#define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1739#define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1740#define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1741#define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1742#define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1743#define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1744#define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1745#define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1746#define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1747#define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */ 1748 1749/* don't give no info, anyway, anyhow (in the main SMTP transaction) */ 1750#define PRIV_GOAWAY 0x0000ffff 1751 1752/* struct defining such things */ 1753struct prival 1754{ 1755 char *pv_name; /* name of privacy flag */ 1756 unsigned long pv_flag; /* numeric level */ 1757}; 1758 1759EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1760 1761 1762/* 1763** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1764*/ 1765 1766#define RF_SENDERADDR 0x001 /* this is a sender address */ 1767#define RF_HEADERADDR 0x002 /* this is a header address */ 1768#define RF_CANONICAL 0x004 /* strip comment information */ 1769#define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1770#define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1771#define RF_COPYPADDR 0x020 /* copy print address */ 1772#define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1773#define RF_COPYNONE 0 1774#define RF_RM_ADDR 0x040 /* address to be removed */ 1775 1776/* 1777** Flags passed to rscheck 1778*/ 1779 1780#define RSF_RMCOMM 0x0001 /* strip comments */ 1781#define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1782#define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1783#define RSF_ADDR 0x0008 /* reassemble address */ 1784#define RSF_STRING 0x0010 /* reassemble address as string */ 1785 1786/* 1787** Flags passed to mime8to7 and putheader. 1788*/ 1789 1790#define M87F_OUTER 0 /* outer context */ 1791#define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1792#define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1793#define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1794 1795/* functions */ 1796extern bool mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1797extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int, int)); 1798 1799/* 1800** Flags passed to returntosender. 1801*/ 1802 1803#define RTSF_NO_BODY 0 /* send headers only */ 1804#define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1805#define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1806 1807/* functions */ 1808extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1809 1810/* 1811** Mail Filters (milter) 1812*/ 1813 1814/* 1815** 32-bit type used by milter 1816** (needed by libmilter even if MILTER isn't defined) 1817*/ 1818 1819typedef SM_INT32 mi_int32; 1820 1821#if MILTER 1822# define SMFTO_WRITE 0 /* Timeout for sending information */ 1823# define SMFTO_READ 1 /* Timeout waiting for a response */ 1824# define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1825# define SMFTO_CONNECT 3 /* Timeout for connect() */ 1826 1827# define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1828 1829struct milter 1830{ 1831 char *mf_name; /* filter name */ 1832 BITMAP256 mf_flags; /* MTA flags */ 1833 mi_int32 mf_fvers; /* filter version */ 1834 mi_int32 mf_fflags; /* filter flags */ 1835 mi_int32 mf_pflags; /* protocol flags */ 1836 char *mf_conn; /* connection info */ 1837 int mf_sock; /* connected socket */ 1838 char mf_state; /* state of filter */ 1839 char mf_lflags; /* "local" flags */ 1840 int mf_idx; /* milter number (index) */ 1841 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1842#if _FFR_MILTER_CHECK 1843 /* for testing only */ 1844 mi_int32 mf_mta_prot_version; 1845 mi_int32 mf_mta_prot_flags; 1846 mi_int32 mf_mta_actions; 1847#endif /* _FFR_MILTER_CHECK */ 1848}; 1849 1850#define MI_LFL_NONE 0x00000000 1851#define MI_LFLAGS_SYM(st) (1 << (st)) /* has its own symlist for stage st */ 1852 1853struct milters 1854{ 1855 mi_int32 mis_flags; /* filter flags */ 1856}; 1857typedef struct milters milters_T; 1858 1859#define MIS_FL_NONE 0x00000000 /* no requirements... */ 1860#define MIS_FL_DEL_RCPT 0x00000001 /* can delete rcpt */ 1861#define MIS_FL_REJ_RCPT 0x00000002 /* can reject rcpt */ 1862 1863 1864/* MTA flags */ 1865# define SMF_REJECT 'R' /* Reject connection on filter fail */ 1866# define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1867# define SMF_TEMPDROP '4' /* 421 connection on failure */ 1868 1869EXTERN struct milter *InputFilters[MAXFILTERS]; 1870EXTERN char *InputFilterList; 1871EXTERN int MilterLogLevel; 1872 1873/* functions */ 1874extern void setup_daemon_milters __P((void)); 1875#endif /* MILTER */ 1876 1877/* 1878** Vendor codes 1879** 1880** Vendors can customize sendmail to add special behaviour, 1881** generally for back compatibility. Ideally, this should 1882** be set up in the .cf file using the "V" command. However, 1883** it's quite reasonable for some vendors to want the default 1884** be their old version; this can be set using 1885** -DVENDOR_DEFAULT=VENDOR_xxx 1886** in the Makefile. 1887** 1888** Vendors should apply to sendmail@sendmail.org for 1889** unique vendor codes. 1890*/ 1891 1892#define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1893#define VENDOR_SUN 2 /* Sun-native configuration file */ 1894#define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1895#define VENDOR_IBM 4 /* IBM specific config syntax */ 1896#define VENDOR_SENDMAIL 5 /* Proofpoint, Inc. specific config syntax */ 1897#define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1898 1899/* prototypes for vendor-specific hook routines */ 1900extern void vendor_daemon_setup __P((ENVELOPE *)); 1901extern void vendor_set_uid __P((UID_T)); 1902 1903 1904/* 1905** Terminal escape codes. 1906** 1907** To make debugging output clearer. 1908*/ 1909 1910struct termescape 1911{ 1912 char *te_rv_on; /* turn reverse-video on */ 1913 char *te_under_on; /* turn underlining on */ 1914 char *te_normal; /* revert to normal output */ 1915}; 1916 1917/* 1918** Additional definitions 1919*/ 1920 1921/* 1922** d_flags, see daemon.c 1923** general rule: lower case: required, upper case: No 1924*/ 1925 1926#define D_AUTHREQ 'a' /* authentication required */ 1927#define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1928#define D_CANONREQ 'c' /* canonification required (cf) */ 1929#define D_IFNHELO 'h' /* use if name for HELO */ 1930#define D_FQMAIL 'f' /* fq sender address required (cf) */ 1931#define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1932#define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1933#define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1934#define D_NOAUTH 'A' /* no AUTH */ 1935#define D_NOCANON 'C' /* no canonification (cf) */ 1936#define D_NOETRN 'E' /* no ETRN (MSA) */ 1937#define D_NOTLS 'S' /* don't use STARTTLS */ 1938#define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1939#define D_OPTIONAL 'O' /* optional socket */ 1940#define D_DISABLE ((char)0x02) /* optional socket disabled */ 1941#define D_ISSET ((char)0x03) /* this client struct is set */ 1942#if _FFR_XCNCT 1943#define D_XCNCT ((char)0x04) /* X-Connect was used */ 1944#define D_XCNCT_M ((char)0x05) /* X-Connect was used + "forged" */ 1945#endif /* _FFR_XCNCT */ 1946 1947#if STARTTLS 1948/* 1949** TLS 1950*/ 1951 1952/* what to do in the TLS initialization */ 1953#define TLS_I_NONE 0x00000000 /* no requirements... */ 1954#define TLS_I_CERT_EX 0x00000001 /* cert must exist */ 1955#define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */ 1956#define TLS_I_KEY_EX 0x00000004 /* key must exist */ 1957#define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */ 1958#define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */ 1959#define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */ 1960#define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */ 1961#define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */ 1962#define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1963#define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1964#define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1965#define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1966#define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1967#define TLS_I_CACHE 0x00002000 /* require cache */ 1968#define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1969#define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1970#define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1971#define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1972#define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1973#define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1974#define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1975#define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1976#define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */ 1977#define TLS_I_CRLF_EX 0x00800000 /* CRL file must exist */ 1978#define TLS_I_CRLF_UNR 0x01000000 /* CRL file must be g/o unreadable */ 1979#define TLS_I_DHFIXED 0x02000000 /* use fixed DH param */ 1980 1981/* require server cert */ 1982#define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1983 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1984 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1985 TLS_I_USE_KEY | TLS_I_USE_CERT | TLS_I_CACHE) 1986 1987/* server requirements */ 1988#define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1989 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_CACHE) 1990 1991/* client requirements */ 1992#define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1993 1994#define TLS_AUTH_OK 0 1995#define TLS_AUTH_NO 1 1996#define TLS_AUTH_FAIL (-1) 1997 1998/* functions */ 1999extern bool init_tls_library __P((bool _fipsmode)); 2000extern bool inittls __P((SSL_CTX **, unsigned long, unsigned long, bool, char *, char *, char *, char *, char *)); 2001extern bool initclttls __P((bool)); 2002extern void setclttls __P((bool)); 2003extern bool initsrvtls __P((bool)); 2004extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 2005extern int endtls __P((SSL *, char *)); 2006extern void tlslogerr __P((int, const char *)); 2007 2008 2009EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */ 2010EXTERN char *CACertFile; /* file with CA certificate */ 2011EXTERN char *CltCertFile; /* file with client certificate */ 2012EXTERN char *CltKeyFile; /* file with client private key */ 2013EXTERN char *CipherList; /* list of ciphers */ 2014EXTERN char *CertFingerprintAlgorithm; /* name of fingerprint alg */ 2015EXTERN const EVP_MD *EVP_digest; /* digest for cert fp */ 2016EXTERN char *DHParams; /* file with DH parameters */ 2017EXTERN char *RandFile; /* source of random data */ 2018EXTERN char *SrvCertFile; /* file with server certificate */ 2019EXTERN char *SrvKeyFile; /* file with server private key */ 2020EXTERN char *CRLFile; /* file CRLs */ 2021#if _FFR_CRLPATH 2022EXTERN char *CRLPath; /* path to CRLs (dir. with hashes) */ 2023#endif /* _FFR_CRLPATH */ 2024EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 2025EXTERN unsigned long Srv_SSL_Options, Clt_SSL_Options; /* SSL options */ 2026#endif /* STARTTLS */ 2027 2028/* 2029** Queue related items 2030*/ 2031 2032/* queue file names */ 2033#define ANYQFL_LETTER '?' 2034#define QUARQF_LETTER 'h' 2035#define DATAFL_LETTER 'd' 2036#define XSCRPT_LETTER 'x' 2037#define NORMQF_LETTER 'q' 2038#define NEWQFL_LETTER 't' 2039 2040# define TEMPQF_LETTER 'T' 2041# define LOSEQF_LETTER 'Q' 2042 2043/* queue sort order */ 2044#define QSO_BYPRIORITY 0 /* sort by message priority */ 2045#define QSO_BYHOST 1 /* sort by first host name */ 2046#define QSO_BYTIME 2 /* sort by submission time */ 2047#define QSO_BYFILENAME 3 /* sort by file name only */ 2048#define QSO_RANDOM 4 /* sort in random order */ 2049#define QSO_BYMODTIME 5 /* sort by modification time */ 2050#define QSO_NONE 6 /* do not sort */ 2051#if _FFR_RHS 2052# define QSO_BYSHUFFLE 7 /* sort by shuffled host name */ 2053#endif /* _FFR_RHS */ 2054 2055#define NOQGRP (-1) /* no queue group (yet) */ 2056#define ENVQGRP (-2) /* use queue group of envelope */ 2057#define NOAQGRP (-3) /* no queue group in addr (yet) */ 2058#define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 2059#define NOQDIR (-1) /* no queue directory (yet) */ 2060#define ENVQDIR (-2) /* use queue directory of envelope */ 2061#define NOAQDIR (-3) /* no queue directory in addr (yet) */ 2062#define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 2063#define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 2064 2065#define NOW ((time_t) (-1)) /* queue return: now */ 2066 2067/* SuperSafe values */ 2068#define SAFE_NO 0 /* no fsync(): don't use... */ 2069#define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 2070#define SAFE_REALLY 2 /* always fsync() */ 2071#define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */ 2072 2073/* QueueMode bits */ 2074#define QM_NORMAL ' ' 2075#define QM_QUARANTINE 'Q' 2076#define QM_LOST 'L' 2077 2078/* Queue Run Limitations */ 2079struct queue_char 2080{ 2081 char *queue_match; /* string to match */ 2082 bool queue_negate; /* or not match, if set */ 2083 struct queue_char *queue_next; 2084}; 2085 2086/* run_work_group() flags */ 2087#define RWG_NONE 0x0000 2088#define RWG_FORK 0x0001 2089#define RWG_VERBOSE 0x0002 2090#define RWG_PERSISTENT 0x0004 2091#define RWG_FORCE 0x0008 2092#define RWG_RUNALL 0x0010 2093 2094typedef struct queue_char QUEUE_CHAR; 2095 2096EXTERN int volatile CurRunners; /* current number of runner children */ 2097EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 2098EXTERN int MaxQueueChildren; /* max # of forked queue children */ 2099EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 2100EXTERN int NiceQueueRun; /* nice queue runs to this value */ 2101EXTERN int NumQueue; /* number of queue groups */ 2102EXTERN int QueueFileMode; /* mode on files in mail queue */ 2103EXTERN int QueueMode; /* which queue items to act upon */ 2104EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 2105EXTERN time_t MinQueueAge; /* min delivery interval */ 2106EXTERN time_t MaxQueueAge; /* max delivery interval */ 2107EXTERN time_t QueueIntvl; /* intervals between running the queue */ 2108EXTERN char *QueueDir; /* location of queue directory */ 2109EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 2110EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 2111EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 2112EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 2113EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 2114#if _FFR_BOUNCE_QUEUE 2115EXTERN int BounceQueue; 2116#endif 2117 2118/* functions */ 2119extern void assign_queueid __P((ENVELOPE *)); 2120extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 2121extern void cleanup_queues __P((void)); 2122extern bool doqueuerun __P((void)); 2123extern void initsys __P((ENVELOPE *)); 2124extern void loseqfile __P((ENVELOPE *, char *)); 2125extern int name2qid __P((char *)); 2126extern char *qid_printname __P((ENVELOPE *)); 2127extern char *qid_printqueue __P((int, int)); 2128extern void quarantine_queue __P((char *, int)); 2129extern char *queuename __P((ENVELOPE *, int)); 2130extern void queueup __P((ENVELOPE *, bool, bool)); 2131extern bool runqueue __P((bool, bool, bool, bool)); 2132extern bool run_work_group __P((int, int)); 2133extern void set_def_queueval __P((QUEUEGRP *, bool)); 2134extern void setup_queues __P((bool)); 2135extern bool setnewqueue __P((ENVELOPE *)); 2136extern bool shouldqueue __P((long, time_t)); 2137extern void sync_queue_time __P((void)); 2138extern void init_qid_alg __P((void)); 2139extern int print_single_queue __P((int, int)); 2140#if REQUIRES_DIR_FSYNC 2141# define SYNC_DIR(path, panic) sync_dir(path, panic) 2142extern void sync_dir __P((char *, bool)); 2143#else /* REQUIRES_DIR_FSYNC */ 2144# define SYNC_DIR(path, panic) ((void) 0) 2145#endif /* REQUIRES_DIR_FSYNC */ 2146 2147/* 2148** Timeouts 2149** 2150** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 2151*/ 2152 2153EXTERN struct 2154{ 2155 /* RFC 1123-specified timeouts [minimum value] */ 2156 time_t to_initial; /* initial greeting timeout [5m] */ 2157 time_t to_mail; /* MAIL command [5m] */ 2158 time_t to_rcpt; /* RCPT command [5m] */ 2159 time_t to_datainit; /* DATA initiation [2m] */ 2160 time_t to_datablock; /* DATA block [3m] */ 2161 time_t to_datafinal; /* DATA completion [10m] */ 2162 time_t to_nextcommand; /* next command [5m] */ 2163 /* following timeouts are not mentioned in RFC 1123 */ 2164 time_t to_iconnect; /* initial connection timeout (first try) */ 2165 time_t to_connect; /* initial connection timeout (later tries) */ 2166 time_t to_aconnect; /* all connections timeout (MX and A records) */ 2167 time_t to_rset; /* RSET command */ 2168 time_t to_helo; /* HELO command */ 2169 time_t to_quit; /* QUIT command */ 2170 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 2171 time_t to_ident; /* IDENT protocol requests */ 2172 time_t to_fileopen; /* opening :include: and .forward files */ 2173 time_t to_control; /* process a control socket command */ 2174 time_t to_lhlo; /* LMTP: LHLO command */ 2175#if SASL 2176 time_t to_auth; /* AUTH dialogue [10m] */ 2177#endif /* SASL */ 2178#if STARTTLS 2179 time_t to_starttls; /* STARTTLS dialogue [10m] */ 2180#endif /* STARTTLS */ 2181 /* following are per message */ 2182 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2183 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2184 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2185 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2186} TimeOuts; 2187 2188/* timeout classes for return and warning timeouts */ 2189#define TOC_NORMAL 0 /* normal delivery */ 2190#define TOC_URGENT 1 /* urgent delivery */ 2191#define TOC_NONURGENT 2 /* non-urgent delivery */ 2192#define TOC_DSN 3 /* DSN delivery */ 2193 2194/* resolver timeout specifiers */ 2195#define RES_TO_FIRST 0 /* first attempt */ 2196#define RES_TO_NORMAL 1 /* subsequent attempts */ 2197#define RES_TO_DEFAULT 2 /* default value */ 2198 2199/* functions */ 2200extern void inittimeouts __P((char *, bool)); 2201 2202/* 2203** Interface probing 2204*/ 2205 2206#define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2207#define DPI_PROBEALL 1 /* Probe all interfaces */ 2208#define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2209 2210/* 2211** Trace information 2212*/ 2213 2214/* macros for debugging flags */ 2215#if NOT_SENDMAIL 2216# define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2217#else 2218# define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level && !IntSig) 2219#endif 2220#define tTdlevel(flag) (tTdvect[flag]) 2221 2222/* variables */ 2223extern unsigned char tTdvect[100]; /* trace vector */ 2224 2225/* 2226** Miscellaneous information. 2227*/ 2228 2229/* 2230** The "no queue id" queue id for sm_syslog 2231*/ 2232 2233#define NOQID "" 2234 2235#define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2236 2237/* 2238** Some in-line functions 2239*/ 2240 2241/* set exit status */ 2242#define setstat(s) \ 2243 do \ 2244 { \ 2245 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2246 ExitStat = s; \ 2247 } while (0) 2248 2249 2250#define STRUCTCOPY(s, d) d = s 2251 2252/* free a pointer if it isn't NULL and set it to NULL */ 2253#define SM_FREE_CLR(p) \ 2254 do \ 2255 { \ 2256 if ((p) != NULL) \ 2257 { \ 2258 sm_free(p); \ 2259 (p) = NULL; \ 2260 } \ 2261 } while (0) 2262 2263/* 2264** Update a permanent string variable with a new value. 2265** The old value is freed, the new value is strdup'ed. 2266** 2267** We use sm_pstrdup_x to duplicate the string because it raises 2268** an exception on error, and because it allocates "permanent storage" 2269** which is not expected to be freed before process exit. 2270** The latter is important for memory leak analysis. 2271** 2272** If an exception occurs while strdup'ing the new value, 2273** then the variable remains set to the old value. 2274** That's why the strdup must occur before we free the old value. 2275** 2276** The macro uses a do loop so that this idiom will work: 2277** if (...) 2278** PSTRSET(var, val1); 2279** else 2280** PSTRSET(var, val2); 2281*/ 2282#define PSTRSET(var, val) \ 2283 do \ 2284 { \ 2285 char *_newval = sm_pstrdup_x(val); \ 2286 if (var != NULL) \ 2287 sm_free(var); \ 2288 var = _newval; \ 2289 } while (0) 2290 2291#define _CHECK_RESTART \ 2292 do \ 2293 { \ 2294 if (ShutdownRequest != NULL) \ 2295 shutdown_daemon(); \ 2296 else if (RestartRequest != NULL) \ 2297 restart_daemon(); \ 2298 else if (RestartWorkGroup) \ 2299 restart_marked_work_groups(); \ 2300 } while (0) 2301 2302# define CHECK_RESTART _CHECK_RESTART 2303 2304#define CHK_CUR_RUNNERS(fct, idx, count) \ 2305 do \ 2306 { \ 2307 if (CurRunners < 0) \ 2308 { \ 2309 if (LogLevel > 3) \ 2310 sm_syslog(LOG_ERR, NOQID, \ 2311 "%s: CurRunners=%d, i=%d, count=%d, status=should not happen", \ 2312 fct, CurRunners, idx, count); \ 2313 CurRunners = 0; \ 2314 } \ 2315 } while (0) 2316 2317/* reply types (text in SmtpMsgBuffer) */ 2318#define XS_DEFAULT 0 /* other commands, e.g., RSET */ 2319#define XS_STARTTLS 1 2320#define XS_AUTH 2 2321#define XS_GREET 3 2322#define XS_EHLO 4 2323#define XS_MAIL 5 2324#define XS_RCPT 6 2325#define XS_DATA 7 2326#define XS_EOM 8 2327#define XS_DATA2 9 /* LMTP */ 2328#define XS_QUIT 10 2329 2330/* 2331** Global variables. 2332*/ 2333 2334#if _FFR_ADD_BCC 2335EXTERN bool AddBcc; 2336#endif 2337#if _FFR_ADDR_TYPE_MODES 2338EXTERN bool AddrTypeModes; /* addr_type: extra "mode" information */ 2339#endif /* _FFR_ADDR_TYPE_MODES */ 2340EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2341EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2342#if _FFR_QUEUE_RUN_PARANOIA 2343EXTERN int CheckQueueRunners; /* check whether queue runners are OK */ 2344#endif /* _FFR_QUEUE_RUN_PARANOIA */ 2345EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2346#if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2347EXTERN bool ConfigFileRead; /* configuration file has been read */ 2348#endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2349EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2350EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2351EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2352EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2353EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2354EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2355EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2356EXTERN bool FipsMode; 2357EXTERN bool GrabTo; /* if set, get recipients from msg */ 2358EXTERN bool EightBitAddrOK; /* we'll let 8-bit addresses through */ 2359EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2360EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2361EXTERN bool HoldErrs; /* only output errors to transcript */ 2362EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2363EXTERN bool IgnrDot; /* don't let dot end messages */ 2364EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2365EXTERN bool MatchGecos; /* look for user names in gecos field */ 2366EXTERN bool MeToo; /* send to the sender also */ 2367EXTERN bool NoAlias; /* suppress aliasing */ 2368EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2369EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2370EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2371#if _FFR_REJECT_NUL_BYTE 2372EXTERN bool RejectNUL; /* reject NUL input byte? */ 2373#endif /* _FFR_REJECT_NUL_BYTE */ 2374#if REQUIRES_DIR_FSYNC 2375EXTERN bool RequiresDirfsync; /* requires fsync() for directory */ 2376#endif /* REQUIRES_DIR_FSYNC */ 2377EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2378EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2379EXTERN bool SaveFrom; /* save leading "From" lines */ 2380EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2381EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2382EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2383EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2384EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2385EXTERN bool volatile StopRequest; /* stop sending output */ 2386EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2387EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2388EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2389EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2390EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2391EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2392EXTERN bool UseCompressedIPv6Addresses; /* for more specific zero-subnet matches */ 2393EXTERN char InetMode; /* default network for daemon mode */ 2394EXTERN char OpMode; /* operation mode, see below */ 2395EXTERN char SpaceSub; /* substitution for <lwsp> */ 2396#if _FFR_BADRCPT_SHUTDOWN 2397EXTERN int BadRcptShutdown; /* Shutdown connection for rejected RCPTs */ 2398EXTERN int BadRcptShutdownGood; /* above even when there are good RCPTs */ 2399#endif /* _FFR_BADRCPT_SHUTDOWN */ 2400EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2401#if _FFR_RCPTTHROTDELAY 2402EXTERN unsigned int BadRcptThrottleDelay; /* delay for BadRcptThrottle */ 2403#else 2404# define BadRcptThrottleDelay 1 2405#endif /* _FFR_RCPTTHROTDELAY */ 2406EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2407EXTERN int ConfigLevel; /* config file level */ 2408EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2409EXTERN int volatile CurChildren; /* current number of daemonic children */ 2410EXTERN int CurrentLA; /* current load average */ 2411EXTERN int DefaultNotify; /* default DSN notification flags */ 2412EXTERN int DelayLA; /* load average to delay connections */ 2413EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2414EXTERN int Errors; /* set if errors (local to single pass) */ 2415EXTERN int ExitStat; /* exit status code */ 2416EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2417EXTERN int FileMode; /* mode on files */ 2418EXTERN int LineNumber; /* line number in current input */ 2419EXTERN int LogLevel; /* level of logging to perform */ 2420EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2421EXTERN int MaxChildren; /* maximum number of daemonic children */ 2422EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2423EXTERN int MaxHeadersLength; /* max length of headers */ 2424EXTERN int MaxHopCount; /* max # of hops until bounce */ 2425EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2426EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2427EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2428EXTERN int MaxNOOPCommands; /* max "noise" commands before slowdown */ 2429 2430EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2431EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2432#if _FFR_MSG_ACCEPT 2433EXTERN char *MessageAccept; /* "Message accepted for delivery" reply text */ 2434#endif /* _FFR_MSG_ACCEPT */ 2435 2436EXTERN int MimeMode; /* MIME processing mode */ 2437EXTERN int NoRecipientAction; 2438 2439#if SM_CONF_SHM 2440EXTERN int Numfilesys; /* number of queue file systems */ 2441EXTERN int *PNumFileSys; 2442# define NumFileSys (*PNumFileSys) 2443# else /* SM_CONF_SHM */ 2444EXTERN int NumFileSys; /* number of queue file systems */ 2445# endif /* SM_CONF_SHM */ 2446 2447EXTERN int QueueLA; /* load average starting forced queueing */ 2448EXTERN int RefuseLA; /* load average refusing connections */ 2449EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */ 2450#if _FFR_MEMSTAT 2451EXTERN long QueueLowMem; /* low memory starting forced queueing */ 2452EXTERN long RefuseLowMem; /* low memory refusing connections */ 2453EXTERN char *MemoryResource;/* memory resource to look up */ 2454#endif /* _FFR_MEMSTAT */ 2455EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2456EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2457EXTERN int Verbose; /* set if blow-by-blow desired */ 2458EXTERN gid_t DefGid; /* default gid to run as */ 2459EXTERN gid_t RealGid; /* real gid of caller */ 2460EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2461EXTERN gid_t EffGid; /* effective gid */ 2462#if SM_CONF_SHM 2463EXTERN key_t ShmKey; /* shared memory key */ 2464EXTERN char *ShmKeyFile; /* shared memory key file */ 2465#endif /* SM_CONF_SHM */ 2466EXTERN pid_t CurrentPid; /* current process id */ 2467EXTERN pid_t DaemonPid; /* process id of daemon */ 2468EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */ 2469EXTERN uid_t DefUid; /* default uid to run as */ 2470EXTERN uid_t RealUid; /* real uid of caller */ 2471EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2472EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2473EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2474EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2475EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2476EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2477EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2478EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2479EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2480EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2481EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2482EXTERN long QueueFactor; /* slope of queue function */ 2483EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2484EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2485EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2486EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2487EXTERN char *CurHostName; /* current host we are dealing with */ 2488EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2489EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2490EXTERN char *DefaultCharSet; /* default character set for MIME */ 2491EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2492EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2493EXTERN char *FallbackMX; /* fall back MX host */ 2494EXTERN char *FallbackSmartHost; /* fall back smart host */ 2495EXTERN char *FileName; /* name to print on error messages */ 2496EXTERN char *ForwardPath; /* path to search for .forward files */ 2497EXTERN char *HeloName; /* hostname to announce in HELO */ 2498EXTERN char *HelpFile; /* location of SMTP help file */ 2499EXTERN char *HostStatDir; /* location of host status information */ 2500EXTERN char *HostsFile; /* path to /etc/hosts file */ 2501extern char *Mbdb; /* mailbox database type */ 2502EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2503EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2504EXTERN char *OperatorChars; /* operators (old $o macro) */ 2505EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2506EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2507EXTERN char *ProcTitlePrefix; /* process title prefix */ 2508EXTERN char *RealHostName; /* name of host we are talking to */ 2509EXTERN char *RealUserName; /* real user name of caller */ 2510EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2511EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2512EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2513EXTERN char *ServiceSwitchFile; /* backup service switch */ 2514EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2515EXTERN bool volatile IntSig; 2516EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2517EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2518EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2519EXTERN char *StatFile; /* location of statistics summary */ 2520EXTERN char *TimeZoneSpec; /* override time zone specification */ 2521EXTERN char *UdbSpec; /* user database source spec */ 2522EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2523EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2524EXTERN char **SaveArgv; /* argument vector for re-execing */ 2525EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2526EXTERN SM_FILE_T *InChannel; /* input connection */ 2527EXTERN SM_FILE_T *OutChannel; /* output connection */ 2528EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2529#if HESIOD 2530EXTERN void *HesiodContext; 2531#endif /* HESIOD */ 2532EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2533EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2534EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2535EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2536EXTERN struct termescape TermEscape; /* terminal escape codes */ 2537EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2538EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2539extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2540 2541 2542EXTERN int ConnectionRateWindowSize; 2543#if STARTTLS && USE_OPENSSL_ENGINE 2544EXTERN bool SSLEngineInitialized; 2545#endif /* STARTTLS && USE_OPENSSL_ENGINE */ 2546 2547/* 2548** Declarations of useful functions 2549*/ 2550 2551/* Transcript file */ 2552extern void closexscript __P((ENVELOPE *)); 2553extern void openxscript __P((ENVELOPE *)); 2554 2555/* error related */ 2556extern void buffer_errors __P((void)); 2557extern void flush_errors __P((bool)); 2558extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2559extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2560#if _FFR_PROXY 2561extern void PRINTFLIKE(3, 4) emessage __P((const char *, const char *, const char *, ...)); 2562extern int extsc __P((const char *, int, char *, char *)); 2563#endif /* _FFR_PROXY */ 2564extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2565extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2566extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2567extern int isenhsc __P((const char *, int)); 2568extern int extenhsc __P((const char *, int, char *)); 2569 2570/* alias file */ 2571extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2572extern bool aliaswait __P((MAP *, char *, bool)); 2573extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2574extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2575extern bool rebuildaliases __P((MAP *, bool)); 2576extern void setalias __P((char *)); 2577 2578/* logging */ 2579extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *, int)); 2580extern void logsender __P((ENVELOPE *, char *)); 2581extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2582 2583/* SMTP */ 2584extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2585extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int)); 2586extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2587#if SASL 2588extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2589#endif /* SASL */ 2590extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2591extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2592extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2593extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2594extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2595extern char *smtptodsn __P((int)); 2596extern int smtpprobe __P((MCI *)); 2597extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2598extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2599extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2600 2601#define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */ 2602#define REPLYCLASS(r) (((r) / 10) % 10) /* second digit of reply code */ 2603#define REPLYMINOR(r) ((r) % 10) /* last digit of reply code */ 2604#define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2605 isascii(c[1]) && isdigit(c[1]) && \ 2606 isascii(c[2]) && isdigit(c[2])) 2607#define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2608 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2609 2610/* delivery */ 2611extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2612extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2613extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2614extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2615extern void sendall __P((ENVELOPE *, int)); 2616 2617/* stats */ 2618#define STATS_NORMAL 'n' 2619#define STATS_QUARANTINE 'q' 2620#define STATS_REJECT 'r' 2621#define STATS_CONNECT 'c' 2622 2623extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2624extern void clearstats __P((void)); 2625extern void poststats __P((char *)); 2626 2627/* control socket */ 2628extern void closecontrolsocket __P((bool)); 2629extern void clrcontrol __P((void)); 2630extern void control_command __P((int, ENVELOPE *)); 2631extern int opencontrolsocket __P((void)); 2632 2633#if MILTER 2634/* milter functions */ 2635extern void milter_config __P((char *, struct milter **, int)); 2636extern void milter_setup __P((char *)); 2637extern void milter_set_option __P((char *, char *, bool)); 2638extern bool milter_init __P((ENVELOPE *, char *, milters_T *)); 2639extern void milter_quit __P((ENVELOPE *)); 2640extern void milter_abort __P((ENVELOPE *)); 2641extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2642extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2643extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2644extern char *milter_data_cmd __P((ENVELOPE *, char *)); 2645extern char *milter_envrcpt __P((char **, ENVELOPE *, char *, bool)); 2646extern char *milter_data __P((ENVELOPE *, char *)); 2647extern char *milter_unknown __P((char *, ENVELOPE *, char *)); 2648#endif /* MILTER */ 2649 2650extern char *addquotes __P((char *, SM_RPOOL_T *)); 2651extern char *arpadate __P((char *)); 2652extern bool atobool __P((char *)); 2653extern int atooct __P((char *)); 2654extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2655extern int blocksignal __P((int)); 2656extern bool bitintersect __P((BITMAP256, BITMAP256)); 2657extern bool bitzerop __P((BITMAP256)); 2658extern int check_bodytype __P((char *)); 2659extern void buildfname __P((char *, char *, char *, int)); 2660extern bool chkclientmodifiers __P((int)); 2661extern bool chkdaemonmodifiers __P((int)); 2662extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2663#ifdef XDEBUG 2664extern void checkfd012 __P((char *)); 2665extern void checkfdopen __P((int, char *)); 2666#endif /* XDEBUG */ 2667extern void checkfds __P((char *)); 2668extern bool chownsafe __P((int, bool)); 2669extern void cleanstrcpy __P((char *, char *, int)); 2670#if SM_CONF_SHM 2671extern void cleanup_shm __P((bool)); 2672#endif /* SM_CONF_SHM */ 2673extern void close_sendmail_pid __P((void)); 2674extern void clrdaemon __P((void)); 2675extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool)); 2676extern bool connection_rate_check __P((SOCKADDR *, ENVELOPE *)); 2677extern time_t convtime __P((char *, int)); 2678extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2679extern void copy_class __P((int, int)); 2680extern int count_open_connections __P((SOCKADDR *)); 2681extern time_t curtime __P((void)); 2682extern char *defcharset __P((ENVELOPE *)); 2683extern char *denlstring __P((char *, bool, bool)); 2684extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *)); 2685extern void disconnect __P((int, ENVELOPE *)); 2686extern void disk_status __P((SM_FILE_T *, char *)); 2687extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2688extern pid_t dofork __P((void)); 2689extern int drop_privileges __P((bool)); 2690extern int dsntoexitstat __P((char *)); 2691extern void dumpfd __P((int, bool, bool)); 2692#if SM_HEAP_CHECK 2693extern void dumpstab __P((void)); 2694#endif /* SM_HEAP_CHECK */ 2695extern void dumpstate __P((char *)); 2696extern bool enoughdiskspace __P((long, ENVELOPE *)); 2697extern char *exitstat __P((char *)); 2698extern void fatal_error __P((SM_EXC_T *)); 2699extern char *fgetfolded __P((char *, int *, SM_FILE_T *)); 2700extern void fill_fd __P((int, char *)); 2701extern char *find_character __P((char *, int)); 2702extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2703extern void finis __P((bool, bool, volatile int)); 2704extern void fixcrlf __P((char *, bool)); 2705extern long freediskspace __P((const char *, long *)); 2706#if NETINET6 && NEEDSGETIPNODE 2707extern void freehostent __P((struct hostent *)); 2708#endif /* NETINET6 && NEEDSGETIPNODE */ 2709extern char *get_column __P((char *, int, int, char *, int)); 2710extern char *getauthinfo __P((int, bool *)); 2711extern int getdtsize __P((void)); 2712extern int getla __P((void)); 2713extern char *getmodifiers __P((char *, BITMAP256)); 2714extern BITMAP256 *getrequests __P((ENVELOPE *)); 2715extern char *getvendor __P((int)); 2716#if _FFR_TLS_SE_OPTS && STARTTLS 2717# ifndef TLS_VRFY_PER_CTX 2718# define TLS_VRFY_PER_CTX 1 2719# endif 2720extern int get_tls_se_options __P((ENVELOPE *, SSL *, bool)); 2721#else 2722# define get_tls_se_options(e, s, w) 0 2723#endif 2724extern void help __P((char *, ENVELOPE *)); 2725extern void init_md __P((int, char **)); 2726extern void initdaemon __P((void)); 2727extern void inithostmaps __P((void)); 2728extern void initmacros __P((ENVELOPE *)); 2729extern void initsetproctitle __P((int, char **, char **)); 2730extern void init_vendor_macros __P((ENVELOPE *)); 2731extern SIGFUNC_DECL intsig __P((int)); 2732extern bool isatom __P((const char *)); 2733extern bool isloopback __P((SOCKADDR sa)); 2734#if _FFR_TLS_SE_OPTS && STARTTLS 2735extern bool load_certkey __P((SSL *, bool, char *, char *)); 2736#endif 2737extern void load_if_names __P((void)); 2738extern bool lockfile __P((int, char *, char *, int)); 2739extern void log_sendmail_pid __P((ENVELOPE *)); 2740extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2741extern char lower __P((int)); 2742extern void makelower __P((char *)); 2743extern int makeconnection_ds __P((char *, MCI *)); 2744extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2745extern void makeworkgroups __P((void)); 2746extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool)); 2747extern void mark_work_group_restart __P((int, int)); 2748extern MCI *mci_new __P((SM_RPOOL_T *)); 2749extern char *munchstring __P((char *, char **, int)); 2750extern struct hostent *myhostname __P((char *, int)); 2751extern char *newstr __P((const char *)); 2752#if NISPLUS 2753extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2754#endif /* NISPLUS */ 2755extern bool path_is_dir __P((char *, bool)); 2756extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2757extern char *pintvl __P((time_t, bool)); 2758extern void printav __P((SM_FILE_T *, char **)); 2759extern void printmailer __P((SM_FILE_T *, MAILER *)); 2760extern void printnqe __P((SM_FILE_T *, char *)); 2761extern void printopenfds __P((bool)); 2762extern void printqueue __P((void)); 2763extern void printrules __P((void)); 2764extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2765extern bool putline __P((char *, MCI *)); 2766extern bool putxline __P((char *, size_t, MCI *, int)); 2767extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2768extern void readcf __P((char *, bool, ENVELOPE *)); 2769extern SIGFUNC_DECL reapchild __P((int)); 2770extern int releasesignal __P((int)); 2771extern void resetlimits __P((void)); 2772extern void restart_daemon __P((void)); 2773extern void restart_marked_work_groups __P((void)); 2774extern bool rfc822_string __P((char *)); 2775extern void rmexpstab __P((void)); 2776extern bool savemail __P((ENVELOPE *, bool)); 2777extern void seed_random __P((void)); 2778extern void sendtoargv __P((char **, ENVELOPE *)); 2779extern void setclientoptions __P((char *)); 2780extern bool setdaemonoptions __P((char *)); 2781extern void setdefaults __P((ENVELOPE *)); 2782extern void setdefuser __P((void)); 2783extern bool setvendor __P((char *)); 2784extern void set_op_mode __P((int)); 2785extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2786extern sigfunc_t setsignal __P((int, sigfunc_t)); 2787extern void sm_setuserenv __P((const char *, const char *)); 2788extern void settime __P((ENVELOPE *)); 2789#if STARTTLS 2790extern int set_tls_rd_tmo __P((int)); 2791#else 2792# define set_tls_rd_tmo(rd_tmo) 0 2793#endif 2794extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2795extern char *shortenstring __P((const char *, size_t)); 2796extern char *shorten_hostname __P((char [])); 2797extern bool shorten_rfc822_string __P((char *, size_t)); 2798extern void shutdown_daemon __P((void)); 2799extern void sm_closefrom __P((int lowest, int highest)); 2800extern void sm_close_on_exec __P((int lowest, int highest)); 2801extern struct hostent *sm_gethostbyname __P((char *, int)); 2802extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2803extern void sm_getla __P((void)); 2804extern struct passwd *sm_getpwnam __P((char *)); 2805extern struct passwd *sm_getpwuid __P((UID_T)); 2806extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2807extern pid_t sm_wait __P((int *)); 2808extern bool split_by_recipient __P((ENVELOPE *e)); 2809extern void stop_sendmail __P((void)); 2810extern void stripbackslash __P((char *)); 2811extern bool strreplnonprt __P((char *, int)); 2812extern bool strcontainedin __P((bool, char *, char *)); 2813extern int switch_map_find __P((char *, char *[], short [])); 2814#if STARTTLS 2815extern void tls_set_verify __P((SSL_CTX *, SSL *, bool)); 2816#endif /* STARTTLS */ 2817extern bool transienterror __P((int)); 2818extern void truncate_at_delim __P((char *, size_t, int)); 2819extern void tTflag __P((char *)); 2820extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2821extern SIGFUNC_DECL tick __P((int)); 2822extern char *ttypath __P((void)); 2823extern void unlockqueue __P((ENVELOPE *)); 2824#if !HASUNSETENV 2825extern void unsetenv __P((char *)); 2826#endif /* !HASUNSETENV */ 2827 2828/* update file system information: +/- some blocks */ 2829#if SM_CONF_SHM 2830extern void upd_qs __P((ENVELOPE *, int, int, char *)); 2831# define updfs(e, count, space, where) upd_qs(e, count, space, where) 2832#else /* SM_CONF_SHM */ 2833# define updfs(e, count, space, where) 2834# define upd_qs(e, count, space, where) 2835#endif /* SM_CONF_SHM */ 2836 2837extern char *username __P((void)); 2838extern bool usershellok __P((char *, char *)); 2839extern void vendor_post_defaults __P((ENVELOPE *)); 2840extern void vendor_pre_defaults __P((ENVELOPE *)); 2841extern int waitfor __P((pid_t)); 2842extern bool writable __P((char *, ADDRESS *, long)); 2843#if SM_HEAP_CHECK 2844# define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2845extern char *xalloc_tagged __P((int, char *, int)); 2846#else /* SM_HEAP_CHECK */ 2847extern char *xalloc __P((int)); 2848#endif /* SM_HEAP_CHECK */ 2849#if _FFR_XCNCT 2850extern int xconnect __P((SM_FILE_T *)); 2851#endif /* _FFR_XCNCT */ 2852extern void xputs __P((SM_FILE_T *, const char *)); 2853extern char *xtextify __P((char *, char *)); 2854extern bool xtextok __P((char *)); 2855extern int xunlink __P((char *)); 2856extern char *xuntextify __P((char *)); 2857 2858#if _FFR_RCPTFLAGS 2859extern bool newmodmailer __P((ADDRESS *, int)); 2860#endif 2861 2862#undef EXTERN 2863#endif /* ! _SENDMAIL_H */ 2864