sendmail.h revision 284985
1135446Strhodes/* 2193149Sdougb * Copyright (c) 1998-2013 Proofpoint, Inc. and its suppliers. 3135446Strhodes * All rights reserved. 4135446Strhodes * Copyright (c) 1983, 1995-1997 Eric P. Allman. All rights reserved. 5193149Sdougb * Copyright (c) 1988, 1993 6135446Strhodes * The Regents of the University of California. All rights reserved. 7135446Strhodes * 8135446Strhodes * By using this file, you agree to the terms and conditions set 9135446Strhodes * forth in the LICENSE file which can be found at the top level of 10135446Strhodes * the sendmail distribution. 11135446Strhodes */ 12135446Strhodes 13135446Strhodes/* 14135446Strhodes** SENDMAIL.H -- MTA-specific definitions for sendmail. 15135446Strhodes*/ 16135446Strhodes 17135446Strhodes#ifndef _SENDMAIL_H 18234010Sdougb# define _SENDMAIL_H 1 19135446Strhodes 20135446Strhodes#ifndef MILTER 21135446Strhodes# define MILTER 1 /* turn on MILTER by default */ 22135446Strhodes#endif /* MILTER */ 23170222Sdougb 24170222Sdougb#ifdef _DEFINE 25135446Strhodes# define EXTERN 26135446Strhodes#else /* _DEFINE */ 27135446Strhodes# define EXTERN extern 28135446Strhodes#endif /* _DEFINE */ 29135446Strhodes 30135446Strhodes 31135446Strhodes#include <unistd.h> 32135446Strhodes 33135446Strhodes#include <stddef.h> 34135446Strhodes#include <stdlib.h> 35135446Strhodes#include <stdio.h> 36135446Strhodes#include <ctype.h> 37135446Strhodes#include <setjmp.h> 38135446Strhodes#include <string.h> 39135446Strhodes#include <time.h> 40135446Strhodes# ifdef EX_OK 41135446Strhodes# undef EX_OK /* for SVr4.2 SMP */ 42135446Strhodes# endif /* EX_OK */ 43135446Strhodes 44135446Strhodes#include "sendmail/sendmail.h" 45135446Strhodes 46135446Strhodes/* profiling? */ 47135446Strhodes#if MONCONTROL 48135446Strhodes# define SM_PROF(x) moncontrol(x) 49135446Strhodes#else /* MONCONTROL */ 50135446Strhodes# define SM_PROF(x) 51135446Strhodes#endif /* MONCONTROL */ 52135446Strhodes 53135446Strhodes#ifdef _DEFINE 54135446Strhodes# ifndef lint 55135446StrhodesSM_UNUSED(static char SmailId[]) = "@(#)$Id: sendmail.h,v 8.1104 2013-11-22 20:51:56 ca Exp $"; 56135446Strhodes# endif /* ! lint */ 57170222Sdougb#endif /* _DEFINE */ 58135446Strhodes 59135446Strhodes#include "bf.h" 60135446Strhodes#include "timers.h" 61165071Sdougb#include <sm/exc.h> 62135446Strhodes#include <sm/heap.h> 63135446Strhodes#include <sm/debug.h> 64135446Strhodes#include <sm/rpool.h> 65135446Strhodes#include <sm/io.h> 66135446Strhodes#include <sm/path.h> 67170222Sdougb#include <sm/signal.h> 68135446Strhodes#include <sm/clock.h> 69135446Strhodes#include <sm/mbdb.h> 70135446Strhodes#include <sm/errstring.h> 71135446Strhodes#include <sm/sysexits.h> 72135446Strhodes#include <sm/shm.h> 73135446Strhodes#include <sm/misc.h> 74135446Strhodes 75135446Strhodes#ifdef LOG 76170222Sdougb# include <syslog.h> 77135446Strhodes#endif /* LOG */ 78165071Sdougb 79165071Sdougb 80135446Strhodes 81170222Sdougb# if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 82135446Strhodes# include <sys/socket.h> 83135446Strhodes# endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 84135446Strhodes# if NETUNIX 85170222Sdougb# include <sys/un.h> 86135446Strhodes# endif /* NETUNIX */ 87135446Strhodes# if NETINET || NETINET6 88135446Strhodes# include <netinet/in.h> 89135446Strhodes# endif /* NETINET || NETINET6 */ 90135446Strhodes# if NETINET6 91135446Strhodes/* 92170222Sdougb** There is no standard yet for IPv6 includes. 93135446Strhodes** Specify OS specific implementation in conf.h 94135446Strhodes*/ 95135446Strhodes# endif /* NETINET6 */ 96135446Strhodes# if NETISO 97170222Sdougb# include <netiso/iso.h> 98135446Strhodes# endif /* NETISO */ 99135446Strhodes# if NETNS 100135446Strhodes# include <netns/ns.h> 101170222Sdougb# endif /* NETNS */ 102135446Strhodes# if NETX25 103135446Strhodes# include <netccitt/x25.h> 104135446Strhodes# endif /* NETX25 */ 105170222Sdougb 106135446Strhodes# if NAMED_BIND 107135446Strhodes# include <arpa/nameser.h> 108135446Strhodes# ifdef NOERROR 109135446Strhodes# undef NOERROR /* avoid <sys/streams.h> conflict */ 110135446Strhodes# endif /* NOERROR */ 111135446Strhodes# include <resolv.h> 112135446Strhodes# else /* NAMED_BIND */ 113135446Strhodes# undef SM_SET_H_ERRNO 114135446Strhodes# define SM_SET_H_ERRNO(err) 115135446Strhodes# endif /* NAMED_BIND */ 116135446Strhodes 117135446Strhodes# if HESIOD 118135446Strhodes# include <hesiod.h> 119135446Strhodes# if !defined(HES_ER_OK) || defined(HESIOD_INTERFACES) 120135446Strhodes# define HESIOD_INIT /* support for the new interface */ 121135446Strhodes# 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 */ 201 202 203/* (f)open() modes for queue files */ 204# define QF_O_EXTRA 0 205 206 207/* 208** An 'argument class' describes the storage allocation status 209** of an object pointed to by an argument to a function. 210*/ 211 212typedef enum 213{ 214 A_HEAP, /* the storage was allocated by malloc, and the 215 * ownership of the storage is ceded by the caller 216 * to the called function. */ 217 A_TEMP, /* The storage is temporary, and is only guaranteed 218 * to be valid for the duration of the function call. */ 219 A_PERM /* The storage is 'permanent': this might mean static 220 * storage, or rpool storage. */ 221} ARGCLASS_T; 222 223/* forward references for prototypes */ 224typedef struct envelope ENVELOPE; 225typedef struct mailer MAILER; 226typedef struct queuegrp QUEUEGRP; 227 228/* 229** Address structure. 230** Addresses are stored internally in this structure. 231*/ 232 233struct address 234{ 235 char *q_paddr; /* the printname for the address */ 236 char *q_user; /* user name */ 237 char *q_ruser; /* real user name, or NULL if q_user */ 238 char *q_host; /* host name */ 239 struct mailer *q_mailer; /* mailer to use */ 240 unsigned long q_flags; /* status flags, see below */ 241 uid_t q_uid; /* user-id of receiver (if known) */ 242 gid_t q_gid; /* group-id of receiver (if known) */ 243 char *q_home; /* home dir (local mailer only) */ 244 char *q_fullname; /* full name if known */ 245 struct address *q_next; /* chain */ 246 struct address *q_alias; /* address this results from */ 247 char *q_owner; /* owner of q_alias */ 248 struct address *q_tchain; /* temporary use chain */ 249#if PIPELINING 250 struct address *q_pchain; /* chain for pipelining */ 251#endif /* PIPELINING */ 252 char *q_finalrcpt; /* Final-Recipient: DSN header */ 253 char *q_orcpt; /* ORCPT parameter from RCPT TO: line */ 254 char *q_status; /* status code for DSNs */ 255 char *q_rstatus; /* remote status message for DSNs */ 256 time_t q_statdate; /* date of status messages */ 257 char *q_statmta; /* MTA generating q_rstatus */ 258 short q_state; /* address state, see below */ 259 char *q_signature; /* MX-based sorting value */ 260 int q_qgrp; /* index into queue groups */ 261 int q_qdir; /* queue directory inside group */ 262 char *q_message; /* error message */ 263}; 264 265typedef struct address ADDRESS; 266 267/* bit values for q_flags */ 268#define QGOODUID 0x00000001 /* the q_uid q_gid fields are good */ 269#define QPRIMARY 0x00000002 /* set from RCPT or argv */ 270#define QNOTREMOTE 0x00000004 /* address not for remote forwarding */ 271#define QSELFREF 0x00000008 /* this address references itself */ 272#define QBOGUSSHELL 0x00000010 /* user has no valid shell listed */ 273#define QUNSAFEADDR 0x00000020 /* address acquired via unsafe path */ 274#define QPINGONSUCCESS 0x00000040 /* give return on successful delivery */ 275#define QPINGONFAILURE 0x00000080 /* give return on failure */ 276#define QPINGONDELAY 0x00000100 /* give return on message delay */ 277#define QHASNOTIFY 0x00000200 /* propagate notify parameter */ 278#define QRELAYED 0x00000400 /* DSN: relayed to non-DSN aware sys */ 279#define QEXPANDED 0x00000800 /* DSN: undergone list expansion */ 280#define QDELIVERED 0x00001000 /* DSN: successful final delivery */ 281#define QDELAYED 0x00002000 /* DSN: message delayed */ 282#define QALIAS 0x00004000 /* expanded alias */ 283#define QBYTRACE 0x00008000 /* DeliverBy: trace */ 284#define QBYNDELAY 0x00010000 /* DeliverBy: notify, delay */ 285#define QBYNRELAY 0x00020000 /* DeliverBy: notify, relayed */ 286#define QTHISPASS 0x40000000 /* temp: address set this pass */ 287#define QRCPTOK 0x80000000 /* recipient() processed address */ 288 289#define Q_PINGFLAGS (QPINGONSUCCESS|QPINGONFAILURE|QPINGONDELAY) 290 291/* values for q_state */ 292#define QS_OK 0 /* address ok (for now)/not yet tried */ 293#define QS_SENT 1 /* good address, delivery complete */ 294#define QS_BADADDR 2 /* illegal address */ 295#define QS_QUEUEUP 3 /* save address in queue */ 296#define QS_RETRY 4 /* retry delivery for next MX */ 297#define QS_VERIFIED 5 /* verified, but not expanded */ 298 299/* 300** Notice: all of the following values are variations of QS_DONTSEND. 301** If new states are added, they must be inserted in the proper place! 302** See the macro definition of QS_IS_DEAD() down below. 303*/ 304 305#define QS_DONTSEND 6 /* don't send to this address */ 306#define QS_EXPANDED 7 /* expanded */ 307#define QS_SENDER 8 /* message sender (MeToo) */ 308#define QS_CLONED 9 /* addr cloned to split envelope */ 309#define QS_DISCARDED 10 /* rcpt discarded (EF_DISCARD) */ 310#define QS_REPLACED 11 /* maplocaluser()/UserDB replaced */ 311#define QS_REMOVED 12 /* removed (removefromlist()) */ 312#define QS_DUPLICATE 13 /* duplicate suppressed */ 313#define QS_INCLUDED 14 /* :include: delivery */ 314#define QS_FATALERR 15 /* fatal error, don't deliver */ 315 316/* address state testing primitives */ 317#define QS_IS_OK(s) ((s) == QS_OK) 318#define QS_IS_SENT(s) ((s) == QS_SENT) 319#define QS_IS_BADADDR(s) ((s) == QS_BADADDR) 320#define QS_IS_QUEUEUP(s) ((s) == QS_QUEUEUP) 321#define QS_IS_RETRY(s) ((s) == QS_RETRY) 322#define QS_IS_VERIFIED(s) ((s) == QS_VERIFIED) 323#define QS_IS_EXPANDED(s) ((s) == QS_EXPANDED) 324#define QS_IS_REMOVED(s) ((s) == QS_REMOVED) 325#define QS_IS_UNDELIVERED(s) ((s) == QS_OK || \ 326 (s) == QS_QUEUEUP || \ 327 (s) == QS_RETRY || \ 328 (s) == QS_VERIFIED) 329#define QS_IS_UNMARKED(s) ((s) == QS_OK || \ 330 (s) == QS_RETRY) 331#define QS_IS_SENDABLE(s) ((s) == QS_OK || \ 332 (s) == QS_QUEUEUP || \ 333 (s) == QS_RETRY) 334#define QS_IS_ATTEMPTED(s) ((s) == QS_QUEUEUP || \ 335 (s) == QS_RETRY || \ 336 (s) == QS_SENT || \ 337 (s) == QS_DISCARDED) 338#define QS_IS_DEAD(s) ((s) >= QS_DONTSEND) 339#define QS_IS_TEMPFAIL(s) ((s) == QS_QUEUEUP || (s) == QS_RETRY) 340 341#define NULLADDR ((ADDRESS *) NULL) 342 343extern ADDRESS NullAddress; /* a null (template) address [main.c] */ 344 345/* functions */ 346extern void cataddr __P((char **, char **, char *, int, int, bool)); 347extern char *crackaddr __P((char *, ENVELOPE *)); 348extern bool emptyaddr __P((ADDRESS *)); 349extern ADDRESS *getctladdr __P((ADDRESS *)); 350extern int include __P((char *, bool, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 351extern bool invalidaddr __P((char *, char *, bool)); 352extern ADDRESS *parseaddr __P((char *, ADDRESS *, int, int, char **, 353 ENVELOPE *, bool)); 354extern char **prescan __P((char *, int, char[], int, char **, unsigned char *, bool)); 355extern void printaddr __P((SM_FILE_T *, ADDRESS *, bool)); 356extern ADDRESS *recipient __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 357extern char *remotename __P((char *, MAILER *, int, int *, ENVELOPE *)); 358extern int rewrite __P((char **, int, int, ENVELOPE *, int)); 359extern bool sameaddr __P((ADDRESS *, ADDRESS *)); 360extern int sendtolist __P((char *, ADDRESS *, ADDRESS **, int, ENVELOPE *)); 361#if MILTER 362extern int removefromlist __P((char *, ADDRESS **, ENVELOPE *)); 363#endif /* MILTER */ 364extern void setsender __P((char *, ENVELOPE *, char **, int, bool)); 365typedef void esmtp_args_F __P((ADDRESS *, char *, char *, ENVELOPE *)); 366extern void parse_esmtp_args __P((ENVELOPE *, ADDRESS *, char *, char *, 367 char *, char *args[], esmtp_args_F)); 368extern esmtp_args_F mail_esmtp_args; 369extern esmtp_args_F rcpt_esmtp_args; 370extern void reset_mail_esmtp_args __P((ENVELOPE *)); 371 372/* macro to simplify the common call to rewrite() */ 373#define REWRITE(pvp, rs, env) rewrite(pvp, rs, 0, env, MAXATOM) 374 375/* 376** Token Tables for prescan 377*/ 378 379extern unsigned char ExtTokenTab[256]; /* external strings */ 380extern unsigned char IntTokenTab[256]; /* internal strings */ 381 382 383/* 384** Mailer definition structure. 385** Every mailer known to the system is declared in this 386** structure. It defines the pathname of the mailer, some 387** flags associated with it, and the argument vector to 388** pass to it. The flags are defined in conf.c 389** 390** The argument vector is expanded before actual use. All 391** words except the first are passed through the macro 392** processor. 393*/ 394 395struct mailer 396{ 397 char *m_name; /* symbolic name of this mailer */ 398 char *m_mailer; /* pathname of the mailer to use */ 399 char *m_mtatype; /* type of this MTA */ 400 char *m_addrtype; /* type for addresses */ 401 char *m_diagtype; /* type for diagnostics */ 402 BITMAP256 m_flags; /* status flags, see below */ 403 short m_mno; /* mailer number internally */ 404 short m_nice; /* niceness to run at (mostly for prog) */ 405 char **m_argv; /* template argument vector */ 406 short m_sh_rwset; /* rewrite set: sender header addresses */ 407 short m_se_rwset; /* rewrite set: sender envelope addresses */ 408 short m_rh_rwset; /* rewrite set: recipient header addresses */ 409 short m_re_rwset; /* rewrite set: recipient envelope addresses */ 410 char *m_eol; /* end of line string */ 411 long m_maxsize; /* size limit on message to this mailer */ 412 int m_linelimit; /* max # characters per line */ 413 int m_maxdeliveries; /* max deliveries per mailer connection */ 414 char *m_execdir; /* directory to chdir to before execv */ 415 char *m_rootdir; /* directory to chroot to before execv */ 416 uid_t m_uid; /* UID to run as */ 417 gid_t m_gid; /* GID to run as */ 418 char *m_defcharset; /* default character set */ 419 time_t m_wait; /* timeout to wait for end */ 420 int m_maxrcpt; /* max recipients per envelope client-side */ 421 short m_qgrp; /* queue group for this mailer */ 422}; 423 424/* bits for m_flags */ 425#define M_ESMTP 'a' /* run Extended SMTP */ 426#define M_ALIASABLE 'A' /* user can be LHS of an alias */ 427#define M_BLANKEND 'b' /* ensure blank line at end of message */ 428#define M_STRIPBACKSL 'B' /* strip all leading backslashes from user */ 429#define M_NOCOMMENT 'c' /* don't include comment part of address */ 430#define M_CANONICAL 'C' /* make addresses canonical "u@dom" */ 431#define M_NOBRACKET 'd' /* never angle bracket envelope route-addrs */ 432 /* 'D' CF: include Date: */ 433#define M_EXPENSIVE 'e' /* it costs to use this mailer.... */ 434#define M_ESCFROM 'E' /* escape From lines to >From */ 435#define M_FOPT 'f' /* mailer takes picky -f flag */ 436 /* 'F' CF: include From: or Resent-From: */ 437#define M_NO_NULL_FROM 'g' /* sender of errors should be $g */ 438#define M_HST_UPPER 'h' /* preserve host case distinction */ 439#define M_PREHEAD 'H' /* MAIL11V3: preview headers */ 440#define M_UDBENVELOPE 'i' /* do udbsender rewriting on envelope */ 441#define M_INTERNAL 'I' /* SMTP to another sendmail site */ 442#define M_UDBRECIPIENT 'j' /* do udbsender rewriting on recipient lines */ 443#define M_NOLOOPCHECK 'k' /* don't check for loops in HELO command */ 444#define M_CHUNKING 'K' /* CHUNKING: reserved for future use */ 445#define M_LOCALMAILER 'l' /* delivery is to this host */ 446#define M_LIMITS 'L' /* must enforce SMTP line limits */ 447#define M_MUSER 'm' /* can handle multiple users at once */ 448 /* 'M' CF: include Message-Id: */ 449#define M_NHDR 'n' /* don't insert From line */ 450#define M_MANYSTATUS 'N' /* MAIL11V3: DATA returns multi-status */ 451#define M_RUNASRCPT 'o' /* always run mailer as recipient */ 452#define M_FROMPATH 'p' /* use reverse-path in MAIL FROM: */ 453 /* 'P' CF: include Return-Path: */ 454#define M_VRFY250 'q' /* VRFY command returns 250 instead of 252 */ 455#define M_ROPT 'r' /* mailer takes picky -r flag */ 456#define M_SECURE_PORT 'R' /* try to send on a reserved TCP port */ 457#define M_STRIPQ 's' /* strip quote chars from user/host */ 458#define M_SPECIFIC_UID 'S' /* run as specific uid/gid */ 459#define M_USR_UPPER 'u' /* preserve user case distinction */ 460#define M_UGLYUUCP 'U' /* this wants an ugly UUCP from line */ 461#define M_CONTENT_LEN 'v' /* add Content-Length: header (SVr4) */ 462 /* 'V' UIUC: !-relativize all addresses */ 463#define M_HASPWENT 'w' /* check for /etc/passwd entry */ 464#define M_NOHOSTSTAT 'W' /* ignore long term host status information */ 465 /* 'x' CF: include Full-Name: */ 466#define M_XDOT 'X' /* use hidden-dot algorithm */ 467#define M_LMTP 'z' /* run Local Mail Transport Protocol */ 468#define M_DIALDELAY 'Z' /* apply dial delay sleeptime */ 469#define M_NOMX '0' /* turn off MX lookups */ 470#define M_NONULLS '1' /* don't send null bytes */ 471#define M_FSMTP '2' /* force SMTP (no ESMTP even if offered) */ 472#define M_EBCDIC '3' /* extend Q-P encoding for EBCDIC */ 473#define M_TRYRULESET5 '5' /* use ruleset 5 after local aliasing */ 474#define M_7BITHDRS '6' /* strip headers to 7 bits even in 8 bit path */ 475#define M_7BITS '7' /* use 7-bit path */ 476#define M_8BITS '8' /* force "just send 8" behaviour */ 477#define M_MAKE8BIT '9' /* convert 7 -> 8 bit if appropriate */ 478#define M_CHECKINCLUDE ':' /* check for :include: files */ 479#define M_CHECKPROG '|' /* check for |program addresses */ 480#define M_CHECKFILE '/' /* check for /file addresses */ 481#define M_CHECKUDB '@' /* user can be user database key */ 482#define M_CHECKHDIR '~' /* SGI: check for valid home directory */ 483#define M_HOLD '%' /* Hold delivery until ETRN/-qI/-qR/-qS */ 484#define M_PLUS '+' /* Reserved: Used in mc for adding new flags */ 485#define M_MINUS '-' /* Reserved: Used in mc for removing flags */ 486#define M_NOMHHACK '!' /* Don't perform HM hack dropping explicit from */ 487 488/* functions */ 489extern void initerrmailers __P((void)); 490extern void makemailer __P((char *)); 491extern void makequeue __P((char *, bool)); 492extern void runqueueevent __P((int)); 493#if _FFR_QUEUE_RUN_PARANOIA 494extern bool checkqueuerunner __P((void)); 495#endif /* _FFR_QUEUE_RUN_PARANOIA */ 496 497EXTERN MAILER *FileMailer; /* ptr to *file* mailer */ 498EXTERN MAILER *InclMailer; /* ptr to *include* mailer */ 499EXTERN MAILER *LocalMailer; /* ptr to local mailer */ 500EXTERN MAILER *ProgMailer; /* ptr to program mailer */ 501EXTERN MAILER *Mailer[MAXMAILERS + 1]; 502 503/* 504** Queue group definition structure. 505** Every queue group known to the system is declared in this structure. 506** It defines the basic pathname of the queue group, some flags 507** associated with it, and the argument vector to pass to it. 508*/ 509 510struct qpaths_s 511{ 512 char *qp_name; /* name of queue dir, relative path */ 513 short qp_subdirs; /* use subdirs? */ 514 short qp_fsysidx; /* file system index of this directory */ 515# if SM_CONF_SHM 516 int qp_idx; /* index into array for queue information */ 517# endif /* SM_CONF_SHM */ 518}; 519 520typedef struct qpaths_s QPATHS; 521 522struct queuegrp 523{ 524 char *qg_name; /* symbolic name of this queue group */ 525 526 /* 527 ** For now this is the same across all queue groups. 528 ** Otherwise we have to play around with chdir(). 529 */ 530 531 char *qg_qdir; /* common component of queue directory */ 532 short qg_index; /* queue number internally, index in Queue[] */ 533 int qg_maxqrun; /* max # of jobs in 1 queuerun */ 534 int qg_numqueues; /* number of queues in this queue */ 535 536 /* 537 ** qg_queueintvl == 0 denotes that no individual value is used. 538 ** Whatever accesses this must deal with "<= 0" as 539 ** "not set, use appropriate default". 540 */ 541 542 time_t qg_queueintvl; /* interval for queue runs */ 543 QPATHS *qg_qpaths; /* list of queue directories */ 544 BITMAP256 qg_flags; /* status flags, see below */ 545 short qg_nice; /* niceness for queue run */ 546 int qg_wgrp; /* Assigned to this work group */ 547 int qg_maxlist; /* max items in work queue for this group */ 548 int qg_curnum; /* current number of queue for queue runs */ 549 int qg_maxrcpt; /* max recipients per envelope, 0==no limit */ 550 551 time_t qg_nextrun; /* time for next queue runs */ 552#if _FFR_QUEUE_GROUP_SORTORDER 553 short qg_sortorder; /* how do we sort this queuerun */ 554#endif /* _FFR_QUEUE_GROUP_SORTORDER */ 555#if 0 556 long qg_wkrcptfact; /* multiplier for # recipients -> priority */ 557 long qg_qfactor; /* slope of queue function */ 558 bool qg_doqueuerun; /* XXX flag is it time to do a queuerun */ 559#endif /* 0 */ 560}; 561 562/* bits for qg_flags (XXX: unused as of now) */ 563#define QD_DEFINED ((char) 1) /* queue group has been defined */ 564#define QD_FORK 'f' /* fork queue runs */ 565 566extern void filesys_update __P((void)); 567#if _FFR_ANY_FREE_FS 568extern bool filesys_free __P((long)); 569#endif /* _FFR_ANY_FREE_FS */ 570 571#if SASL 572/* 573** SASL 574*/ 575 576/* lines in authinfo file or index into SASL_AI_T */ 577# define SASL_WRONG (-1) 578# define SASL_USER 0 /* authorization id (user) */ 579# define SASL_AUTHID 1 /* authentication id */ 580# define SASL_PASSWORD 2 /* password fuer authid */ 581# define SASL_DEFREALM 3 /* realm to use */ 582# define SASL_MECHLIST 4 /* list of mechanisms to try */ 583# define SASL_ID_REALM 5 /* authid@defrealm */ 584 585/* 586** Current mechanism; this is just used to convey information between 587** invocation of SASL callback functions. 588** It must be last in the list, because it's not allocated by us 589** and hence we don't free() it. 590*/ 591# define SASL_MECH 6 592# define SASL_ENTRIES 7 /* number of entries in array */ 593 594# define SASL_USER_BIT (1 << SASL_USER) 595# define SASL_AUTHID_BIT (1 << SASL_AUTHID) 596# define SASL_PASSWORD_BIT (1 << SASL_PASSWORD) 597# define SASL_DEFREALM_BIT (1 << SASL_DEFREALM) 598# define SASL_MECHLIST_BIT (1 << SASL_MECHLIST) 599 600/* authenticated? */ 601# define SASL_NOT_AUTH 0 /* not authenticated */ 602# define SASL_PROC_AUTH 1 /* in process of authenticating */ 603# define SASL_IS_AUTH 2 /* authenticated */ 604 605/* SASL options */ 606# define SASL_AUTH_AUTH 0x1000 /* use auth= only if authenticated */ 607# if SASL >= 20101 608# define SASL_SEC_MASK SASL_SEC_MAXIMUM /* mask for SASL_SEC_* values: sasl.h */ 609# else /* SASL >= 20101 */ 610# define SASL_SEC_MASK 0x0fff /* mask for SASL_SEC_* values: sasl.h */ 611# if (SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 || \ 612 (SASL_SEC_NOACTIVE & SASL_SEC_MASK) == 0 || \ 613 (SASL_SEC_NODICTIONARY & SASL_SEC_MASK) == 0 || \ 614 (SASL_SEC_FORWARD_SECRECY & SASL_SEC_MASK) == 0 || \ 615 (SASL_SEC_NOANONYMOUS & SASL_SEC_MASK) == 0 || \ 616 (SASL_SEC_PASS_CREDENTIALS & SASL_SEC_MASK) == 0 617ERROR: change SASL_SEC_MASK_ notify sendmail.org! 618# endif /* SASL_SEC_NOPLAINTEXT & SASL_SEC_MASK) == 0 ... */ 619# endif /* SASL >= 20101 */ 620# define MAXOUTLEN 8192 /* length of output buffer, should be 2^n */ 621 622/* functions */ 623extern char *intersect __P((char *, char *, SM_RPOOL_T *)); 624extern char *iteminlist __P((char *, char *, char *)); 625# if SASL >= 20000 626extern int proxy_policy __P((sasl_conn_t *, void *, const char *, unsigned, const char *, unsigned, const char *, unsigned, struct propctx *)); 627extern int safesaslfile __P((void *, const char *, sasl_verify_type_t)); 628# else /* SASL >= 20000 */ 629extern int proxy_policy __P((void *, const char *, const char *, const char **, const char **)); 630# if SASL > 10515 631extern int safesaslfile __P((void *, char *, int)); 632# else /* SASL > 10515 */ 633extern int safesaslfile __P((void *, char *)); 634# endif /* SASL > 10515 */ 635# endif /* SASL >= 20000 */ 636extern void stop_sasl_client __P((void)); 637 638/* structure to store authinfo */ 639typedef char *SASL_AI_T[SASL_ENTRIES]; 640 641EXTERN char *AuthMechanisms; /* AUTH mechanisms */ 642EXTERN char *AuthRealm; /* AUTH realm */ 643EXTERN char *SASLInfo; /* file with AUTH info */ 644EXTERN int SASLOpts; /* options for SASL */ 645EXTERN int MaxSLBits; /* max. encryption bits for SASL */ 646#endif /* SASL */ 647 648/* 649** Structure to store macros. 650*/ 651typedef struct 652{ 653 SM_RPOOL_T *mac_rpool; /* resource pool */ 654 BITMAP256 mac_allocated; /* storage has been alloc()? */ 655 char *mac_table[MAXMACROID + 1]; /* macros */ 656} MACROS_T; 657 658EXTERN MACROS_T GlobalMacros; 659 660/* 661** Information about currently open connections to mailers, or to 662** hosts that we have looked up recently. 663*/ 664 665#define MCI struct mailer_con_info 666 667MCI 668{ 669 unsigned long mci_flags; /* flag bits, see below */ 670 short mci_errno; /* error number on last connection */ 671 short mci_herrno; /* h_errno from last DNS lookup */ 672 short mci_exitstat; /* exit status from last connection */ 673 short mci_state; /* SMTP state */ 674 int mci_deliveries; /* delivery attempts for connection */ 675 long mci_maxsize; /* max size this server will accept */ 676 SM_FILE_T *mci_in; /* input side of connection */ 677 SM_FILE_T *mci_out; /* output side of connection */ 678 pid_t mci_pid; /* process id of subordinate proc */ 679 char *mci_phase; /* SMTP phase string */ 680 struct mailer *mci_mailer; /* ptr to the mailer for this conn */ 681 char *mci_host; /* host name */ 682 char *mci_status; /* DSN status to be copied to addrs */ 683 char *mci_rstatus; /* SMTP status to be copied to addrs */ 684 time_t mci_lastuse; /* last usage time */ 685 SM_FILE_T *mci_statfile; /* long term status file */ 686 char *mci_heloname; /* name to use as HELO arg */ 687 long mci_min_by; /* minimum DELIVERBY */ 688 bool mci_retryrcpt; /* tempfail for at least one rcpt */ 689 char *mci_tolist; /* list of valid recipients */ 690 SM_RPOOL_T *mci_rpool; /* resource pool */ 691#if PIPELINING 692 int mci_okrcpts; /* number of valid recipients */ 693 ADDRESS *mci_nextaddr; /* next address for pipelined status */ 694#endif /* PIPELINING */ 695#if SASL 696 SASL_AI_T mci_sai; /* authentication info */ 697 bool mci_sasl_auth; /* authenticated? */ 698 int mci_sasl_string_len; 699 char *mci_sasl_string; /* sasl reply string */ 700 char *mci_saslcap; /* SASL list of mechanisms */ 701 sasl_conn_t *mci_conn; /* SASL connection */ 702#endif /* SASL */ 703#if STARTTLS 704 SSL *mci_ssl; /* SSL connection */ 705#endif /* STARTTLS */ 706 MACROS_T mci_macro; /* macro definitions */ 707}; 708 709 710/* flag bits */ 711#define MCIF_VALID 0x00000001 /* this entry is valid */ 712/* 0x00000002 unused, was MCIF_TEMP */ 713#define MCIF_CACHED 0x00000004 /* currently in open cache */ 714#define MCIF_ESMTP 0x00000008 /* this host speaks ESMTP */ 715#define MCIF_EXPN 0x00000010 /* EXPN command supported */ 716#define MCIF_SIZE 0x00000020 /* SIZE option supported */ 717#define MCIF_8BITMIME 0x00000040 /* BODY=8BITMIME supported */ 718#define MCIF_7BIT 0x00000080 /* strip this message to 7 bits */ 719/* 0x00000100 unused, was MCIF_MULTSTAT: MAIL11V3: handles MULT status */ 720#define MCIF_INHEADER 0x00000200 /* currently outputing header */ 721#define MCIF_CVT8TO7 0x00000400 /* convert from 8 to 7 bits */ 722#define MCIF_DSN 0x00000800 /* DSN extension supported */ 723#define MCIF_8BITOK 0x00001000 /* OK to send 8 bit characters */ 724#define MCIF_CVT7TO8 0x00002000 /* convert from 7 to 8 bits */ 725#define MCIF_INMIME 0x00004000 /* currently reading MIME header */ 726#define MCIF_AUTH 0x00008000 /* AUTH= supported */ 727#define MCIF_AUTHACT 0x00010000 /* SASL (AUTH) active */ 728#define MCIF_ENHSTAT 0x00020000 /* ENHANCEDSTATUSCODES supported */ 729#define MCIF_PIPELINED 0x00040000 /* PIPELINING supported */ 730#define MCIF_VERB 0x00080000 /* VERB supported */ 731#if STARTTLS 732#define MCIF_TLS 0x00100000 /* STARTTLS supported */ 733#define MCIF_TLSACT 0x00200000 /* STARTTLS active */ 734#else /* STARTTLS */ 735#define MCIF_TLS 0 736#define MCIF_TLSACT 0 737#endif /* STARTTLS */ 738#define MCIF_DLVR_BY 0x00400000 /* DELIVERBY */ 739#if _FFR_IGNORE_EXT_ON_HELO 740# define MCIF_HELO 0x00800000 /* we used HELO: ignore extensions */ 741#endif /* _FFR_IGNORE_EXT_ON_HELO */ 742#define MCIF_INLONGLINE 0x01000000 /* in the middle of a long line */ 743#define MCIF_AUTH2 0x02000000 /* got 2 AUTH lines */ 744#define MCIF_ONLY_EHLO 0x10000000 /* use only EHLO in smtpinit */ 745 746#define MCIF_EXTENS (MCIF_EXPN | MCIF_SIZE | MCIF_8BITMIME | MCIF_DSN | MCIF_8BITOK | MCIF_AUTH | MCIF_ENHSTAT | MCIF_TLS | MCIF_AUTH2) 747 748/* states */ 749#define MCIS_CLOSED 0 /* no traffic on this connection */ 750#define MCIS_OPENING 1 /* sending initial protocol */ 751#define MCIS_OPEN 2 /* open, initial protocol sent */ 752#define MCIS_MAIL 3 /* MAIL command sent */ 753#define MCIS_RCPT 4 /* RCPT commands being sent */ 754#define MCIS_DATA 5 /* DATA command sent */ 755#define MCIS_QUITING 6 /* running quit protocol */ 756#define MCIS_SSD 7 /* service shutting down */ 757#define MCIS_ERROR 8 /* I/O error on connection */ 758 759/* functions */ 760extern void mci_cache __P((MCI *)); 761extern void mci_close __P((MCI *, char *where)); 762extern void mci_dump __P((SM_FILE_T *, MCI *, bool)); 763extern void mci_dump_all __P((SM_FILE_T *, bool)); 764extern void mci_flush __P((bool, MCI *)); 765extern void mci_clr_extensions __P((MCI *)); 766extern MCI *mci_get __P((char *, MAILER *)); 767extern int mci_lock_host __P((MCI *)); 768extern bool mci_match __P((char *, MAILER *)); 769extern int mci_print_persistent __P((char *, char *)); 770extern int mci_purge_persistent __P((char *, char *)); 771extern MCI **mci_scan __P((MCI *)); 772extern void mci_setstat __P((MCI *, int, char *, char *)); 773extern void mci_store_persistent __P((MCI *)); 774extern int mci_traverse_persistent __P((int (*)(char *, char *), char *)); 775extern void mci_unlock_host __P((MCI *)); 776 777EXTERN int MaxMciCache; /* maximum entries in MCI cache */ 778EXTERN time_t MciCacheTimeout; /* maximum idle time on connections */ 779EXTERN time_t MciInfoTimeout; /* how long 'til we retry down hosts */ 780 781/* 782** Header structure. 783** This structure is used internally to store header items. 784*/ 785 786struct header 787{ 788 char *h_field; /* the name of the field */ 789 char *h_value; /* the value of that field */ 790 struct header *h_link; /* the next header */ 791 unsigned char h_macro; /* include header if macro defined */ 792 unsigned long h_flags; /* status bits, see below */ 793 BITMAP256 h_mflags; /* m_flags bits needed */ 794}; 795 796typedef struct header HDR; 797 798/* 799** Header information structure. 800** Defined in conf.c, this struct declares the header fields 801** that have some magic meaning. 802*/ 803 804struct hdrinfo 805{ 806 char *hi_field; /* the name of the field */ 807 unsigned long hi_flags; /* status bits, see below */ 808 char *hi_ruleset; /* validity check ruleset */ 809}; 810 811extern struct hdrinfo HdrInfo[]; 812 813/* bits for h_flags and hi_flags */ 814#define H_EOH 0x00000001 /* field terminates header */ 815#define H_RCPT 0x00000002 /* contains recipient addresses */ 816#define H_DEFAULT 0x00000004 /* if another value is found, drop this */ 817#define H_RESENT 0x00000008 /* this address is a "Resent-..." address */ 818#define H_CHECK 0x00000010 /* check h_mflags against m_flags */ 819#define H_ACHECK 0x00000020 /* ditto, but always (not just default) */ 820#define H_FORCE 0x00000040 /* force this field, even if default */ 821#define H_TRACE 0x00000080 /* this field contains trace information */ 822#define H_FROM 0x00000100 /* this is a from-type field */ 823#define H_VALID 0x00000200 /* this field has a validated value */ 824#define H_RECEIPTTO 0x00000400 /* field has return receipt info */ 825#define H_ERRORSTO 0x00000800 /* field has error address info */ 826#define H_CTE 0x00001000 /* field is a content-transfer-encoding */ 827#define H_CTYPE 0x00002000 /* this is a content-type field */ 828#define H_BCC 0x00004000 /* Bcc: header: strip value or delete */ 829#define H_ENCODABLE 0x00008000 /* field can be RFC 1522 encoded */ 830#define H_STRIPCOMM 0x00010000 /* header check: strip comments */ 831#define H_BINDLATE 0x00020000 /* only expand macros at deliver */ 832#define H_USER 0x00040000 /* header came from the user/SMTP */ 833 834/* bits for chompheader() */ 835#define CHHDR_DEF 0x0001 /* default header */ 836#define CHHDR_CHECK 0x0002 /* call ruleset for header */ 837#define CHHDR_USER 0x0004 /* header from user */ 838#define CHHDR_QUEUE 0x0008 /* header from queue file */ 839 840/* functions */ 841extern void addheader __P((char *, char *, int, ENVELOPE *, bool)); 842extern unsigned long chompheader __P((char *, int, HDR **, ENVELOPE *)); 843extern bool commaize __P((HDR *, char *, bool, MCI *, ENVELOPE *, int)); 844extern HDR *copyheader __P((HDR *, SM_RPOOL_T *)); 845extern void eatheader __P((ENVELOPE *, bool, bool)); 846extern char *hvalue __P((char *, HDR *)); 847extern void insheader __P((int, char *, char *, int, ENVELOPE *, bool)); 848extern bool isheader __P((char *)); 849extern bool putfromline __P((MCI *, ENVELOPE *)); 850extern void setupheaders __P((void)); 851 852/* 853** Performance monitoring 854*/ 855 856#define TIMERS struct sm_timers 857 858TIMERS 859{ 860 TIMER ti_overall; /* the whole process */ 861}; 862 863 864#define PUSHTIMER(l, t) { if (tTd(98, l)) pushtimer(&t); } 865#define POPTIMER(l, t) { if (tTd(98, l)) poptimer(&t); } 866 867/* 868** Envelope structure. 869** This structure defines the message itself. There is usually 870** only one of these -- for the message that we originally read 871** and which is our primary interest -- but other envelopes can 872** be generated during processing. For example, error messages 873** will have their own envelope. 874*/ 875 876struct envelope 877{ 878 HDR *e_header; /* head of header list */ 879 long e_msgpriority; /* adjusted priority of this message */ 880 time_t e_ctime; /* time message appeared in the queue */ 881 char *e_to; /* (list of) target person(s) */ 882 ADDRESS e_from; /* the person it is from */ 883 char *e_sender; /* e_from.q_paddr w comments stripped */ 884 char **e_fromdomain; /* the domain part of the sender */ 885 ADDRESS *e_sendqueue; /* list of message recipients */ 886 ADDRESS *e_errorqueue; /* the queue for error responses */ 887 888 /* 889 ** Overflow detection is based on < 0, so don't change this 890 ** to unsigned. We don't use unsigned and == ULONG_MAX because 891 ** some libc's don't have strtoul(), see mail_esmtp_args(). 892 */ 893 894 long e_msgsize; /* size of the message in bytes */ 895 char *e_msgid; /* message id (for logging) */ 896 unsigned long e_flags; /* flags, see below */ 897 int e_nrcpts; /* number of recipients */ 898 short e_class; /* msg class (priority, junk, etc.) */ 899 short e_hopcount; /* number of times processed */ 900 short e_nsent; /* number of sends since checkpoint */ 901 short e_sendmode; /* message send mode */ 902 short e_errormode; /* error return mode */ 903 short e_timeoutclass; /* message timeout class */ 904 bool (*e_puthdr)__P((MCI *, HDR *, ENVELOPE *, int)); 905 /* function to put header of message */ 906 bool (*e_putbody)__P((MCI *, ENVELOPE *, char *)); 907 /* function to put body of message */ 908 ENVELOPE *e_parent; /* the message this one encloses */ 909 ENVELOPE *e_sibling; /* the next envelope of interest */ 910 char *e_bodytype; /* type of message body */ 911 SM_FILE_T *e_dfp; /* data file */ 912 char *e_id; /* code for this entry in queue */ 913#if _FFR_SESSID 914 char *e_sessid; /* session ID for this envelope */ 915#endif /* _FFR_SESSID */ 916 int e_qgrp; /* queue group (index into queues) */ 917 int e_qdir; /* index into queue directories */ 918 int e_dfqgrp; /* data file queue group index */ 919 int e_dfqdir; /* data file queue directory index */ 920 int e_xfqgrp; /* queue group (index into queues) */ 921 int e_xfqdir; /* index into queue directories (xf) */ 922 SM_FILE_T *e_xfp; /* transcript file */ 923 SM_FILE_T *e_lockfp; /* the lock file for this message */ 924 char *e_message; /* error message; readonly; NULL, 925 * or allocated from e_rpool */ 926 char *e_statmsg; /* stat msg (changes per delivery). 927 * readonly. NULL or allocated from 928 * e_rpool. */ 929 char *e_quarmsg; /* why envelope is quarantined */ 930 char e_qfletter; /* queue file letter on disk */ 931 char *e_msgboundary; /* MIME-style message part boundary */ 932 char *e_origrcpt; /* original recipient (one only) */ 933 char *e_envid; /* envelope id from MAIL FROM: line */ 934 char *e_status; /* DSN status for this message */ 935 time_t e_dtime; /* time of last delivery attempt */ 936 int e_ntries; /* number of delivery attempts */ 937 dev_t e_dfdev; /* data file device (crash recovery) */ 938 ino_t e_dfino; /* data file inode (crash recovery) */ 939 MACROS_T e_macro; /* macro definitions */ 940 MCI *e_mci; /* connection info */ 941 char *e_auth_param; /* readonly; NULL or static storage or 942 * allocated from e_rpool */ 943 TIMERS e_timers; /* per job timers */ 944 long e_deliver_by; /* deliver by */ 945 int e_dlvr_flag; /* deliver by flag */ 946 SM_RPOOL_T *e_rpool; /* resource pool for this envelope */ 947 unsigned int e_features; /* server features */ 948#if _FFR_MILTER_ENHSC 949#define ENHSC_LEN 11 950 char e_enhsc[ENHSC_LEN]; /* enhanced status code */ 951#endif /* _FFR_MILTER_ENHSC */ 952}; 953 954#define PRT_NONNEGL(v) ((v) < 0 ? LONG_MAX : (v)) 955 956/* values for e_flags */ 957#define EF_OLDSTYLE 0x00000001L /* use spaces (not commas) in hdrs */ 958#define EF_INQUEUE 0x00000002L /* this message is fully queued */ 959#define EF_NO_BODY_RETN 0x00000004L /* omit message body on error */ 960#define EF_CLRQUEUE 0x00000008L /* disk copy is no longer needed */ 961#define EF_SENDRECEIPT 0x00000010L /* send a return receipt */ 962#define EF_FATALERRS 0x00000020L /* fatal errors occurred */ 963#define EF_DELETE_BCC 0x00000040L /* delete Bcc: headers entirely */ 964#define EF_RESPONSE 0x00000080L /* this is an error or return receipt */ 965#define EF_RESENT 0x00000100L /* this message is being forwarded */ 966#define EF_VRFYONLY 0x00000200L /* verify only (don't expand aliases) */ 967#define EF_WARNING 0x00000400L /* warning message has been sent */ 968#define EF_QUEUERUN 0x00000800L /* this envelope is from queue */ 969#define EF_GLOBALERRS 0x00001000L /* treat errors as global */ 970#define EF_PM_NOTIFY 0x00002000L /* send return mail to postmaster */ 971#define EF_METOO 0x00004000L /* send to me too */ 972#define EF_LOGSENDER 0x00008000L /* need to log the sender */ 973#define EF_NORECEIPT 0x00010000L /* suppress all return-receipts */ 974#define EF_HAS8BIT 0x00020000L /* at least one 8-bit char in body */ 975#define EF_NL_NOT_EOL 0x00040000L /* don't accept raw NL as EOLine */ 976#define EF_CRLF_NOT_EOL 0x00080000L /* don't accept CR-LF as EOLine */ 977#define EF_RET_PARAM 0x00100000L /* RCPT command had RET argument */ 978#define EF_HAS_DF 0x00200000L /* set when data file is instantiated */ 979#define EF_IS_MIME 0x00400000L /* really is a MIME message */ 980#define EF_DONT_MIME 0x00800000L /* never MIME this message */ 981#define EF_DISCARD 0x01000000L /* discard the message */ 982#define EF_TOOBIG 0x02000000L /* message is too big */ 983#define EF_SPLIT 0x04000000L /* envelope has been split */ 984#define EF_UNSAFE 0x08000000L /* unsafe: read from untrusted source */ 985#define EF_TOODEEP 0x10000000L /* message is nested too deep */ 986 987#define DLVR_NOTIFY 0x01 988#define DLVR_RETURN 0x02 989#define DLVR_TRACE 0x10 990#define IS_DLVR_NOTIFY(e) (((e)->e_dlvr_flag & DLVR_NOTIFY) != 0) 991#define IS_DLVR_RETURN(e) (((e)->e_dlvr_flag & DLVR_RETURN) != 0) 992#define IS_DLVR_TRACE(e) (((e)->e_dlvr_flag & DLVR_TRACE) != 0) 993#define IS_DLVR_BY(e) ((e)->e_dlvr_flag != 0) 994 995#define BODYTYPE_NONE (0) 996#define BODYTYPE_7BIT (1) 997#define BODYTYPE_8BITMIME (2) 998#define BODYTYPE_ILLEGAL (-1) 999#define BODYTYPE_VALID(b) ((b) == BODYTYPE_7BIT || (b) == BODYTYPE_8BITMIME) 1000 1001extern ENVELOPE BlankEnvelope; 1002 1003/* functions */ 1004extern void clearenvelope __P((ENVELOPE *, bool, SM_RPOOL_T *)); 1005extern int dropenvelope __P((ENVELOPE *, bool, bool)); 1006extern ENVELOPE *newenvelope __P((ENVELOPE *, ENVELOPE *, SM_RPOOL_T *)); 1007extern void clrsessenvelope __P((ENVELOPE *)); 1008extern void printenvflags __P((ENVELOPE *)); 1009extern bool putbody __P((MCI *, ENVELOPE *, char *)); 1010extern bool putheader __P((MCI *, HDR *, ENVELOPE *, int)); 1011 1012/* 1013** Message priority classes. 1014** 1015** The message class is read directly from the Priority: header 1016** field in the message. 1017** 1018** CurEnv->e_msgpriority is the number of bytes in the message plus 1019** the creation time (so that jobs ``tend'' to be ordered correctly), 1020** adjusted by the message class, the number of recipients, and the 1021** amount of time the message has been sitting around. This number 1022** is used to order the queue. Higher values mean LOWER priority. 1023** 1024** Each priority class point is worth WkClassFact priority points; 1025** each recipient is worth WkRecipFact priority points. Each time 1026** we reprocess a message the priority is adjusted by WkTimeFact. 1027** WkTimeFact should normally decrease the priority so that jobs 1028** that have historically failed will be run later; thanks go to 1029** Jay Lepreau at Utah for pointing out the error in my thinking. 1030** 1031** The "class" is this number, unadjusted by the age or size of 1032** this message. Classes with negative representations will have 1033** error messages thrown away if they are not local. 1034*/ 1035 1036struct priority 1037{ 1038 char *pri_name; /* external name of priority */ 1039 int pri_val; /* internal value for same */ 1040}; 1041 1042EXTERN int NumPriorities; /* pointer into Priorities */ 1043EXTERN struct priority Priorities[MAXPRIORITIES]; 1044 1045/* 1046** Rewrite rules. 1047*/ 1048 1049struct rewrite 1050{ 1051 char **r_lhs; /* pattern match */ 1052 char **r_rhs; /* substitution value */ 1053 struct rewrite *r_next;/* next in chain */ 1054 int r_line; /* rule line in sendmail.cf */ 1055}; 1056 1057/* 1058** Special characters in rewriting rules. 1059** These are used internally only. 1060** The COND* rules are actually used in macros rather than in 1061** rewriting rules, but are given here because they 1062** cannot conflict. 1063*/ 1064 1065/* "out of band" indicator */ 1066/* sm/sendmail.h #define METAQUOTE ((unsigned char)0377) quotes the next octet */ 1067 1068/* left hand side items */ 1069#define MATCHZANY ((unsigned char)0220) /* match zero or more tokens */ 1070#define MATCHANY ((unsigned char)0221) /* match one or more tokens */ 1071#define MATCHONE ((unsigned char)0222) /* match exactly one token */ 1072#define MATCHCLASS ((unsigned char)0223) /* match one token in a class */ 1073#define MATCHNCLASS ((unsigned char)0224) /* match tokens not in class */ 1074 1075/* right hand side items */ 1076#define MATCHREPL ((unsigned char)0225) /* RHS replacement for above */ 1077#define CANONNET ((unsigned char)0226) /* canonical net, next token */ 1078#define CANONHOST ((unsigned char)0227) /* canonical host, next token */ 1079#define CANONUSER ((unsigned char)0230) /* canonical user, next N tokens */ 1080#define CALLSUBR ((unsigned char)0231) /* call another rewriting set */ 1081 1082/* conditionals in macros (anywhere) */ 1083#define CONDIF ((unsigned char)0232) /* conditional if-then */ 1084#define CONDELSE ((unsigned char)0233) /* conditional else */ 1085#define CONDFI ((unsigned char)0234) /* conditional fi */ 1086 1087/* bracket characters for RHS host name lookup */ 1088#define HOSTBEGIN ((unsigned char)0235) /* hostname lookup begin */ 1089#define HOSTEND ((unsigned char)0236) /* hostname lookup end */ 1090 1091/* bracket characters for RHS generalized lookup */ 1092#define LOOKUPBEGIN ((unsigned char)0205) /* generalized lookup begin */ 1093#define LOOKUPEND ((unsigned char)0206) /* generalized lookup end */ 1094 1095/* macro substitution characters (anywhere) */ 1096#define MACROEXPAND ((unsigned char)0201) /* macro expansion */ 1097#define MACRODEXPAND ((unsigned char)0202) /* deferred macro expansion */ 1098 1099/* to make the code clearer */ 1100#define MATCHZERO CANONHOST 1101 1102#define MAXMATCH 9 /* max params per rewrite */ 1103#define MAX_MAP_ARGS 10 /* max arguments for map */ 1104 1105/* external <==> internal mapping table */ 1106struct metamac 1107{ 1108 char metaname; /* external code (after $) */ 1109 unsigned char metaval; /* internal code (as above) */ 1110}; 1111 1112/* values for macros with external names only */ 1113#define MID_OPMODE 0202 /* operation mode */ 1114 1115/* functions */ 1116#if SM_HEAP_CHECK 1117extern void 1118macdefine_tagged __P(( 1119 MACROS_T *_mac, 1120 ARGCLASS_T _vclass, 1121 int _id, 1122 char *_value, 1123 char *_file, 1124 int _line, 1125 int _group)); 1126# define macdefine(mac,c,id,v) \ 1127 macdefine_tagged(mac,c,id,v,__FILE__,__LINE__,sm_heap_group()) 1128#else /* SM_HEAP_CHECK */ 1129extern void 1130macdefine __P(( 1131 MACROS_T *_mac, 1132 ARGCLASS_T _vclass, 1133 int _id, 1134 char *_value)); 1135# define macdefine_tagged(mac,c,id,v,file,line,grp) macdefine(mac,c,id,v) 1136#endif /* SM_HEAP_CHECK */ 1137extern void macset __P((MACROS_T *, int, char *)); 1138#define macget(mac, i) (mac)->mac_table[i] 1139extern void expand __P((char *, char *, size_t, ENVELOPE *)); 1140extern int macid_parse __P((char *, char **)); 1141#define macid(name) macid_parse(name, NULL) 1142extern char *macname __P((int)); 1143extern char *macvalue __P((int, ENVELOPE *)); 1144extern int rscheck __P((char *, char *, char *, ENVELOPE *, int, int, char *, char *, ADDRESS *)); 1145extern int rscap __P((char *, char *, char *, ENVELOPE *, char ***, char *, int)); 1146extern void setclass __P((int, char *)); 1147extern int strtorwset __P((char *, char **, int)); 1148extern char *translate_dollars __P((char *, char *, int *)); 1149extern bool wordinclass __P((char *, int)); 1150 1151/* 1152** Name canonification short circuit. 1153** 1154** If the name server for a host is down, the process of trying to 1155** canonify the name can hang. This is similar to (but alas, not 1156** identical to) looking up the name for delivery. This stab type 1157** caches the result of the name server lookup so we don't hang 1158** multiple times. 1159*/ 1160 1161#define NAMECANON struct _namecanon 1162 1163NAMECANON 1164{ 1165 short nc_errno; /* cached errno */ 1166 short nc_herrno; /* cached h_errno */ 1167 short nc_stat; /* cached exit status code */ 1168 short nc_flags; /* flag bits */ 1169 char *nc_cname; /* the canonical name */ 1170 time_t nc_exp; /* entry expires at */ 1171}; 1172 1173/* values for nc_flags */ 1174#define NCF_VALID 0x0001 /* entry valid */ 1175 1176/* hostsignature structure */ 1177 1178struct hostsig_t 1179{ 1180 char *hs_sig; /* hostsignature */ 1181 time_t hs_exp; /* entry expires at */ 1182}; 1183 1184typedef struct hostsig_t HOSTSIG_T; 1185 1186/* 1187** The standard udp packet size PACKETSZ (512) is not sufficient for some 1188** nameserver answers containing very many resource records. The resolver 1189** may switch to tcp and retry if it detects udp packet overflow. 1190** Also note that the resolver routines res_query and res_search return 1191** the size of the *un*truncated answer in case the supplied answer buffer 1192** it not big enough to accommodate the entire answer. 1193*/ 1194 1195# ifndef MAXPACKET 1196# define MAXPACKET 8192 /* max packet size used internally by BIND */ 1197# endif /* ! MAXPACKET */ 1198 1199/* 1200** The resolver functions res_{send,query,querydomain} expect the 1201** answer buffer to be aligned, but some versions of gcc4 reverse 1202** 25 years of history and no longer align char buffers on the 1203** stack, resulting in crashes on strict-alignment platforms. Use 1204** this union when putting the buffer on the stack to force the 1205** alignment, then cast to (HEADER *) or (unsigned char *) as needed. 1206*/ 1207typedef union 1208{ 1209 HEADER qb1; 1210 unsigned char qb2[MAXPACKET]; 1211} querybuf; 1212 1213/* functions */ 1214extern bool getcanonname __P((char *, int, bool, int *)); 1215extern int getmxrr __P((char *, char **, unsigned short *, bool, int *, bool, int *)); 1216extern char *hostsignature __P((MAILER *, char *)); 1217extern int getfallbackmxrr __P((char *)); 1218 1219/* 1220** Mapping functions 1221** 1222** These allow arbitrary mappings in the config file. The idea 1223** (albeit not the implementation) comes from IDA sendmail. 1224*/ 1225 1226#define MAPCLASS struct _mapclass 1227#define MAP struct _map 1228#define MAXMAPACTIONS 5 /* size of map_actions array */ 1229 1230 1231/* 1232** An actual map. 1233*/ 1234 1235MAP 1236{ 1237 MAPCLASS *map_class; /* the class of this map */ 1238 MAPCLASS *map_orgclass; /* the original class of this map */ 1239 char *map_mname; /* name of this map */ 1240 long map_mflags; /* flags, see below */ 1241 char *map_file; /* the (nominal) filename */ 1242 ARBPTR_T map_db1; /* the open database ptr */ 1243 ARBPTR_T map_db2; /* an "extra" database pointer */ 1244 char *map_keycolnm; /* key column name */ 1245 char *map_valcolnm; /* value column name */ 1246 unsigned char map_keycolno; /* key column number */ 1247 unsigned char map_valcolno; /* value column number */ 1248 char map_coldelim; /* column delimiter */ 1249 char map_spacesub; /* spacesub */ 1250 char *map_app; /* to append to successful matches */ 1251 char *map_tapp; /* to append to "tempfail" matches */ 1252 char *map_domain; /* the (nominal) NIS domain */ 1253 char *map_rebuild; /* program to run to do auto-rebuild */ 1254 time_t map_mtime; /* last database modification time */ 1255 time_t map_timeout; /* timeout for map accesses */ 1256 int map_retry; /* # of retries for map accesses */ 1257 pid_t map_pid; /* PID of process which opened map */ 1258 int map_lockfd; /* auxiliary lock file descriptor */ 1259 short map_specificity; /* specificity of aliases */ 1260 MAP *map_stack[MAXMAPSTACK]; /* list for stacked maps */ 1261 short map_return[MAXMAPACTIONS]; /* return bitmaps for stacked maps */ 1262}; 1263 1264 1265/* bit values for map_mflags */ 1266#define MF_VALID 0x00000001 /* this entry is valid */ 1267#define MF_INCLNULL 0x00000002 /* include null byte in key */ 1268#define MF_OPTIONAL 0x00000004 /* don't complain if map not found */ 1269#define MF_NOFOLDCASE 0x00000008 /* don't fold case in keys */ 1270#define MF_MATCHONLY 0x00000010 /* don't use the map value */ 1271#define MF_OPEN 0x00000020 /* this entry is open */ 1272#define MF_WRITABLE 0x00000040 /* open for writing */ 1273#define MF_ALIAS 0x00000080 /* this is an alias file */ 1274#define MF_TRY0NULL 0x00000100 /* try with no null byte */ 1275#define MF_TRY1NULL 0x00000200 /* try with the null byte */ 1276#define MF_LOCKED 0x00000400 /* this map is currently locked */ 1277#define MF_ALIASWAIT 0x00000800 /* alias map in aliaswait state */ 1278#define MF_IMPL_HASH 0x00001000 /* implicit: underlying hash database */ 1279#define MF_IMPL_NDBM 0x00002000 /* implicit: underlying NDBM database */ 1280/* 0x00004000 */ 1281#define MF_APPEND 0x00008000 /* append new entry on rebuild */ 1282#define MF_KEEPQUOTES 0x00010000 /* don't dequote key before lookup */ 1283#define MF_NODEFER 0x00020000 /* don't defer if map lookup fails */ 1284#define MF_REGEX_NOT 0x00040000 /* regular expression negation */ 1285#define MF_DEFER 0x00080000 /* don't lookup map in defer mode */ 1286#define MF_SINGLEMATCH 0x00100000 /* successful only if match one key */ 1287#define MF_SINGLEDN 0x00200000 /* only one match, but multi values */ 1288#define MF_FILECLASS 0x00400000 /* this is a file class map */ 1289#define MF_OPENBOGUS 0x00800000 /* open failed, don't call map_close */ 1290#define MF_CLOSING 0x01000000 /* map is being closed */ 1291 1292#define DYNOPENMAP(map) \ 1293 do \ 1294 { \ 1295 if (!bitset(MF_OPEN, (map)->map_mflags)) \ 1296 { \ 1297 if (!openmap(map)) \ 1298 return NULL; \ 1299 } \ 1300 } while (0) 1301 1302 1303/* indices for map_actions */ 1304#define MA_NOTFOUND 0 /* member map returned "not found" */ 1305#define MA_UNAVAIL 1 /* member map is not available */ 1306#define MA_TRYAGAIN 2 /* member map returns temp failure */ 1307 1308/* macros to handle MapTempFail */ 1309#define BIT_IS_MTP 0x01 /* temp.failure occurred */ 1310#define BIT_ASK_MTP 0x02 /* do we care about MapTempFail? */ 1311#define RESET_MAPTEMPFAIL MapTempFail = 0 1312#define INIT_MAPTEMPFAIL MapTempFail = BIT_ASK_MTP 1313#define SET_MAPTEMPFAIL MapTempFail |= BIT_IS_MTP 1314#define IS_MAPTEMPFAIL bitset(BIT_IS_MTP, MapTempFail) 1315#define ASK_MAPTEMPFAIL bitset(BIT_ASK_MTP, MapTempFail) 1316 1317/* 1318** The class of a map -- essentially the functions to call 1319*/ 1320 1321MAPCLASS 1322{ 1323 char *map_cname; /* name of this map class */ 1324 char *map_ext; /* extension for database file */ 1325 short map_cflags; /* flag bits, see below */ 1326 bool (*map_parse)__P((MAP *, char *)); 1327 /* argument parsing function */ 1328 char *(*map_lookup)__P((MAP *, char *, char **, int *)); 1329 /* lookup function */ 1330 void (*map_store)__P((MAP *, char *, char *)); 1331 /* store function */ 1332 bool (*map_open)__P((MAP *, int)); 1333 /* open function */ 1334 void (*map_close)__P((MAP *)); 1335 /* close function */ 1336}; 1337 1338/* bit values for map_cflags */ 1339#define MCF_ALIASOK 0x0001 /* can be used for aliases */ 1340#define MCF_ALIASONLY 0x0002 /* usable only for aliases */ 1341#define MCF_REBUILDABLE 0x0004 /* can rebuild alias files */ 1342#define MCF_OPTFILE 0x0008 /* file name is optional */ 1343#define MCF_NOTPERSIST 0x0010 /* don't keep map open all the time */ 1344 1345/* functions */ 1346extern void closemaps __P((bool)); 1347extern bool impl_map_open __P((MAP *, int)); 1348extern void initmaps __P((void)); 1349extern MAP *makemapentry __P((char *)); 1350extern void maplocaluser __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1351extern char *map_rewrite __P((MAP *, const char *, size_t, char **)); 1352#if NETINFO 1353extern char *ni_propval __P((char *, char *, char *, char *, int)); 1354#endif /* NETINFO */ 1355extern bool openmap __P((MAP *)); 1356extern int udbexpand __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 1357#if USERDB 1358extern void _udbx_close __P((void)); 1359extern char *udbsender __P((char *, SM_RPOOL_T *)); 1360#endif /* USERDB */ 1361 1362/* 1363** LDAP related items 1364*/ 1365#if LDAPMAP 1366/* struct defining LDAP Auth Methods */ 1367struct lamvalues 1368{ 1369 char *lam_name; /* name of LDAP auth method */ 1370 int lam_code; /* numeric code */ 1371}; 1372 1373/* struct defining LDAP Alias Dereferencing */ 1374struct ladvalues 1375{ 1376 char *lad_name; /* name of LDAP alias dereferencing method */ 1377 int lad_code; /* numeric code */ 1378}; 1379 1380/* struct defining LDAP Search Scope */ 1381struct lssvalues 1382{ 1383 char *lss_name; /* name of LDAP search scope */ 1384 int lss_code; /* numeric code */ 1385}; 1386 1387/* functions */ 1388extern bool ldapmap_parseargs __P((MAP *, char *)); 1389extern void ldapmap_set_defaults __P((char *)); 1390#endif /* LDAPMAP */ 1391 1392/* 1393** PH related items 1394*/ 1395 1396#if PH_MAP 1397 1398# include <phclient.h> 1399 1400struct ph_map_struct 1401{ 1402 char *ph_servers; /* list of ph servers */ 1403 char *ph_field_list; /* list of fields to search for match */ 1404 PH *ph; /* PH server handle */ 1405 int ph_fastclose; /* send "quit" command on close */ 1406 time_t ph_timeout; /* timeout interval */ 1407}; 1408typedef struct ph_map_struct PH_MAP_STRUCT; 1409 1410#endif /* PH_MAP */ 1411 1412/* 1413** Regular UNIX sockaddrs are too small to handle ISO addresses, so 1414** we are forced to declare a supertype here. 1415*/ 1416 1417#if NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 1418union bigsockaddr 1419{ 1420 struct sockaddr sa; /* general version */ 1421# if NETUNIX 1422 struct sockaddr_un sunix; /* UNIX family */ 1423# endif /* NETUNIX */ 1424# if NETINET 1425 struct sockaddr_in sin; /* INET family */ 1426# endif /* NETINET */ 1427# if NETINET6 1428 struct sockaddr_in6 sin6; /* INET/IPv6 */ 1429# endif /* NETINET6 */ 1430# if NETISO 1431 struct sockaddr_iso siso; /* ISO family */ 1432# endif /* NETISO */ 1433# if NETNS 1434 struct sockaddr_ns sns; /* XNS family */ 1435# endif /* NETNS */ 1436# if NETX25 1437 struct sockaddr_x25 sx25; /* X.25 family */ 1438# endif /* NETX25 */ 1439}; 1440 1441# define SOCKADDR union bigsockaddr 1442 1443/* functions */ 1444extern char *anynet_ntoa __P((SOCKADDR *)); 1445# if NETINET6 1446extern char *anynet_ntop __P((struct in6_addr *, char *, size_t)); 1447extern int anynet_pton __P((int, const char *, void *)); 1448# endif /* NETINET6 */ 1449extern char *hostnamebyanyaddr __P((SOCKADDR *)); 1450extern char *validate_connection __P((SOCKADDR *, char *, ENVELOPE *)); 1451# if SASL >= 20000 1452extern bool iptostring __P((SOCKADDR *, SOCKADDR_LEN_T, char *, unsigned)); 1453# endif /* SASL >= 20000 */ 1454 1455#endif /* NETINET || NETINET6 || NETUNIX || NETISO || NETNS || NETX25 */ 1456 1457/* 1458** Process List (proclist) 1459*/ 1460 1461#define NO_PID ((pid_t) 0) 1462#ifndef PROC_LIST_SEG 1463# define PROC_LIST_SEG 32 /* number of pids to alloc at a time */ 1464#endif /* ! PROC_LIST_SEG */ 1465 1466/* process types */ 1467#define PROC_NONE 0 1468#define PROC_DAEMON 1 1469#define PROC_DAEMON_CHILD 2 1470#define PROC_QUEUE 3 1471#define PROC_QUEUE_CHILD 3 1472#define PROC_CONTROL 4 1473#define PROC_CONTROL_CHILD 5 1474 1475/* functions */ 1476extern void proc_list_add __P((pid_t, char *, int, int, int, SOCKADDR *)); 1477extern void proc_list_clear __P((void)); 1478extern void proc_list_display __P((SM_FILE_T *, char *)); 1479extern void proc_list_drop __P((pid_t, int, int *)); 1480extern void proc_list_probe __P((void)); 1481extern void proc_list_set __P((pid_t, char *)); 1482extern void proc_list_signal __P((int, int)); 1483 1484/* 1485** Symbol table definitions 1486*/ 1487 1488struct symtab 1489{ 1490 char *s_name; /* name to be entered */ 1491 short s_symtype; /* general type (see below) */ 1492 struct symtab *s_next; /* pointer to next in chain */ 1493 union 1494 { 1495 BITMAP256 sv_class; /* bit-map of word classes */ 1496 MAILER *sv_mailer; /* pointer to mailer */ 1497 char *sv_alias; /* alias */ 1498 MAPCLASS sv_mapclass; /* mapping function class */ 1499 MAP sv_map; /* mapping function */ 1500 HOSTSIG_T sv_hostsig; /* host signature */ 1501 MCI sv_mci; /* mailer connection info */ 1502 NAMECANON sv_namecanon; /* canonical name cache */ 1503 int sv_macro; /* macro name => id mapping */ 1504 int sv_ruleset; /* ruleset index */ 1505 struct hdrinfo sv_header; /* header metainfo */ 1506 char *sv_service[MAXMAPSTACK]; /* service switch */ 1507#if LDAPMAP 1508 MAP *sv_lmap; /* Maps for LDAP connection */ 1509#endif /* LDAPMAP */ 1510#if SOCKETMAP 1511 MAP *sv_socketmap; /* Maps for SOCKET connection */ 1512#endif /* SOCKETMAP */ 1513#if MILTER 1514 struct milter *sv_milter; /* milter filter name */ 1515#endif /* MILTER */ 1516 QUEUEGRP *sv_queue; /* pointer to queue */ 1517 } s_value; 1518}; 1519 1520typedef struct symtab STAB; 1521 1522/* symbol types */ 1523#define ST_UNDEF 0 /* undefined type */ 1524#define ST_CLASS 1 /* class map */ 1525/* #define ST_unused 2 UNUSED */ 1526#define ST_MAILER 3 /* a mailer header */ 1527#define ST_ALIAS 4 /* an alias */ 1528#define ST_MAPCLASS 5 /* mapping function class */ 1529#define ST_MAP 6 /* mapping function */ 1530#define ST_HOSTSIG 7 /* host signature */ 1531#define ST_NAMECANON 8 /* cached canonical name */ 1532#define ST_MACRO 9 /* macro name to id mapping */ 1533#define ST_RULESET 10 /* ruleset index */ 1534#define ST_SERVICE 11 /* service switch entry */ 1535#define ST_HEADER 12 /* special header flags */ 1536#if LDAPMAP 1537# define ST_LMAP 13 /* List head of maps for LDAP connection */ 1538#endif /* LDAPMAP */ 1539#if MILTER 1540# define ST_MILTER 14 /* milter filter */ 1541#endif /* MILTER */ 1542#define ST_QUEUE 15 /* a queue entry */ 1543 1544#if SOCKETMAP 1545# define ST_SOCKETMAP 16 /* List head of maps for SOCKET connection */ 1546#endif /* SOCKETMAP */ 1547 1548/* This entry must be last */ 1549#define ST_MCI 17 /* mailer connection info (offset) */ 1550 1551#define s_class s_value.sv_class 1552#define s_mailer s_value.sv_mailer 1553#define s_alias s_value.sv_alias 1554#define s_mci s_value.sv_mci 1555#define s_mapclass s_value.sv_mapclass 1556#define s_hostsig s_value.sv_hostsig 1557#define s_map s_value.sv_map 1558#define s_namecanon s_value.sv_namecanon 1559#define s_macro s_value.sv_macro 1560#define s_ruleset s_value.sv_ruleset 1561#define s_service s_value.sv_service 1562#define s_header s_value.sv_header 1563#if LDAPMAP 1564# define s_lmap s_value.sv_lmap 1565#endif /* LDAPMAP */ 1566#if SOCKETMAP 1567# define s_socketmap s_value.sv_socketmap 1568#endif /* SOCKETMAP */ 1569#if MILTER 1570# define s_milter s_value.sv_milter 1571#endif /* MILTER */ 1572#define s_quegrp s_value.sv_queue 1573 1574/* opcodes to stab */ 1575#define ST_FIND 0 /* find entry */ 1576#define ST_ENTER 1 /* enter if not there */ 1577 1578/* functions */ 1579extern STAB *stab __P((char *, int, int)); 1580extern void stabapply __P((void (*)(STAB *, int), int)); 1581 1582/* 1583** Operation, send, error, and MIME modes 1584** 1585** The operation mode describes the basic operation of sendmail. 1586** This can be set from the command line, and is "send mail" by 1587** default. 1588** 1589** The send mode tells how to send mail. It can be set in the 1590** configuration file. Its setting determines how quickly the 1591** mail will be delivered versus the load on your system. If the 1592** -v (verbose) flag is given, it will be forced to SM_DELIVER 1593** mode. 1594** 1595** The error mode tells how to return errors. 1596*/ 1597 1598#define MD_DELIVER 'm' /* be a mail sender */ 1599#define MD_SMTP 's' /* run SMTP on standard input */ 1600#define MD_ARPAFTP 'a' /* obsolete ARPANET mode (Grey Book) */ 1601#define MD_DAEMON 'd' /* run as a daemon */ 1602#define MD_FGDAEMON 'D' /* run daemon in foreground */ 1603#define MD_LOCAL 'l' /* like daemon, but localhost only */ 1604#define MD_VERIFY 'v' /* verify: don't collect or deliver */ 1605#define MD_TEST 't' /* test mode: resolve addrs only */ 1606#define MD_INITALIAS 'i' /* initialize alias database */ 1607#define MD_PRINT 'p' /* print the queue */ 1608#define MD_PRINTNQE 'P' /* print number of entries in queue */ 1609#define MD_FREEZE 'z' /* freeze the configuration file */ 1610#define MD_HOSTSTAT 'h' /* print persistent host stat info */ 1611#define MD_PURGESTAT 'H' /* purge persistent host stat info */ 1612#define MD_QUEUERUN 'q' /* queue run */ 1613#define MD_CHECKCONFIG 'C' /* check configuration file */ 1614 1615#if _FFR_LOCAL_DAEMON 1616EXTERN bool LocalDaemon; 1617# if NETINET6 1618EXTERN bool V6LoopbackAddrFound; /* found an IPv6 loopback address */ 1619# define SETV6LOOPBACKADDRFOUND(sa) \ 1620 do \ 1621 { \ 1622 if (isloopback(sa)) \ 1623 V6LoopbackAddrFound = true; \ 1624 } while (0) 1625# endif /* NETINET6 */ 1626#else /* _FFR_LOCAL_DAEMON */ 1627# define LocalDaemon false 1628# define V6LoopbackAddrFound false 1629# define SETV6LOOPBACKADDRFOUND(sa) 1630#endif /* _FFR_LOCAL_DAEMON */ 1631 1632/* Note: see also include/sendmail/pathnames.h: GET_CLIENT_CF */ 1633 1634/* values for e_sendmode -- send modes */ 1635#define SM_DELIVER 'i' /* interactive delivery */ 1636#define SM_FORK 'b' /* deliver in background */ 1637#if _FFR_DM_ONE 1638#define SM_DM_ONE 'o' /* deliver first TA in background, then queue */ 1639#endif /* _FFR_DM_ONE */ 1640#define SM_QUEUE 'q' /* queue, don't deliver */ 1641#define SM_DEFER 'd' /* defer map lookups as well as queue */ 1642#define SM_VERIFY 'v' /* verify only (used internally) */ 1643#define DM_NOTSET (-1) /* DeliveryMode (per daemon) option not set */ 1644# define SM_IS_INTERACTIVE(m) ((m) == SM_DELIVER) 1645 1646#define WILL_BE_QUEUED(m) ((m) == SM_QUEUE || (m) == SM_DEFER) 1647 1648/* used only as a parameter to sendall */ 1649#define SM_DEFAULT '\0' /* unspecified, use SendMode */ 1650 1651/* functions */ 1652extern void set_delivery_mode __P((int, ENVELOPE *)); 1653 1654/* values for e_errormode -- error handling modes */ 1655#define EM_PRINT 'p' /* print errors */ 1656#define EM_MAIL 'm' /* mail back errors */ 1657#define EM_WRITE 'w' /* write back errors */ 1658#define EM_BERKNET 'e' /* special berknet processing */ 1659#define EM_QUIET 'q' /* don't print messages (stat only) */ 1660 1661 1662/* bit values for MimeMode */ 1663#define MM_CVTMIME 0x0001 /* convert 8 to 7 bit MIME */ 1664#define MM_PASS8BIT 0x0002 /* just send 8 bit data blind */ 1665#define MM_MIME8BIT 0x0004 /* convert 8-bit data to MIME */ 1666 1667 1668/* how to handle messages without any recipient addresses */ 1669#define NRA_NO_ACTION 0 /* just leave it as is */ 1670#define NRA_ADD_TO 1 /* add To: header */ 1671#define NRA_ADD_APPARENTLY_TO 2 /* add Apparently-To: header */ 1672#define NRA_ADD_BCC 3 /* add empty Bcc: header */ 1673#define NRA_ADD_TO_UNDISCLOSED 4 /* add To: undisclosed:; header */ 1674 1675 1676/* flags to putxline */ 1677#define PXLF_NOTHINGSPECIAL 0 /* no special mapping */ 1678#define PXLF_MAPFROM 0x0001 /* map From_ to >From_ */ 1679#define PXLF_STRIP8BIT 0x0002 /* strip 8th bit */ 1680#define PXLF_HEADER 0x0004 /* map newlines in headers */ 1681#define PXLF_NOADDEOL 0x0008 /* if EOL not present, don't add one */ 1682#define PXLF_STRIPMQUOTE 0x0010 /* strip METAQUOTEs */ 1683 1684/* 1685** Privacy flags 1686** These are bit values for the PrivacyFlags word. 1687*/ 1688 1689#define PRIV_PUBLIC 0 /* what have I got to hide? */ 1690#define PRIV_NEEDMAILHELO 0x00000001 /* insist on HELO for MAIL */ 1691#define PRIV_NEEDEXPNHELO 0x00000002 /* insist on HELO for EXPN */ 1692#define PRIV_NEEDVRFYHELO 0x00000004 /* insist on HELO for VRFY */ 1693#define PRIV_NOEXPN 0x00000008 /* disallow EXPN command */ 1694#define PRIV_NOVRFY 0x00000010 /* disallow VRFY command */ 1695#define PRIV_AUTHWARNINGS 0x00000020 /* flag possible auth probs */ 1696#define PRIV_NOVERB 0x00000040 /* disallow VERB command */ 1697#define PRIV_RESTRICTMAILQ 0x00010000 /* restrict mailq command */ 1698#define PRIV_RESTRICTQRUN 0x00020000 /* restrict queue run */ 1699#define PRIV_RESTRICTEXPAND 0x00040000 /* restrict alias/forward expansion */ 1700#define PRIV_NOETRN 0x00080000 /* disallow ETRN command */ 1701#define PRIV_NOBODYRETN 0x00100000 /* do not return bodies on bounces */ 1702#define PRIV_NORECEIPTS 0x00200000 /* disallow return receipts */ 1703#define PRIV_NOACTUALRECIPIENT 0x00400000 /* no X-Actual-Recipient in DSNs */ 1704 1705/* don't give no info, anyway, anyhow (in the main SMTP transaction) */ 1706#define PRIV_GOAWAY 0x0000ffff 1707 1708/* struct defining such things */ 1709struct prival 1710{ 1711 char *pv_name; /* name of privacy flag */ 1712 unsigned long pv_flag; /* numeric level */ 1713}; 1714 1715EXTERN unsigned long PrivacyFlags; /* privacy flags */ 1716 1717 1718/* 1719** Flags passed to remotename, parseaddr, allocaddr, and buildaddr. 1720*/ 1721 1722#define RF_SENDERADDR 0x001 /* this is a sender address */ 1723#define RF_HEADERADDR 0x002 /* this is a header address */ 1724#define RF_CANONICAL 0x004 /* strip comment information */ 1725#define RF_ADDDOMAIN 0x008 /* OK to do domain extension */ 1726#define RF_COPYPARSE 0x010 /* copy parsed user & host */ 1727#define RF_COPYPADDR 0x020 /* copy print address */ 1728#define RF_COPYALL (RF_COPYPARSE|RF_COPYPADDR) 1729#define RF_COPYNONE 0 1730#define RF_RM_ADDR 0x040 /* address to be removed */ 1731 1732/* 1733** Flags passed to rscheck 1734*/ 1735 1736#define RSF_RMCOMM 0x0001 /* strip comments */ 1737#define RSF_UNSTRUCTURED 0x0002 /* unstructured, ignore syntax errors */ 1738#define RSF_COUNT 0x0004 /* count rejections (statistics)? */ 1739 1740/* 1741** Flags passed to mime8to7 and putheader. 1742*/ 1743 1744#define M87F_OUTER 0 /* outer context */ 1745#define M87F_NO8BIT 0x0001 /* can't have 8-bit in this section */ 1746#define M87F_DIGEST 0x0002 /* processing multipart/digest */ 1747#define M87F_NO8TO7 0x0004 /* don't do 8->7 bit conversions */ 1748 1749/* functions */ 1750extern bool mime7to8 __P((MCI *, HDR *, ENVELOPE *)); 1751extern int mime8to7 __P((MCI *, HDR *, ENVELOPE *, char **, int, int)); 1752 1753/* 1754** Flags passed to returntosender. 1755*/ 1756 1757#define RTSF_NO_BODY 0 /* send headers only */ 1758#define RTSF_SEND_BODY 0x0001 /* include body of message in return */ 1759#define RTSF_PM_BOUNCE 0x0002 /* this is a postmaster bounce */ 1760 1761/* functions */ 1762extern int returntosender __P((char *, ADDRESS *, int, ENVELOPE *)); 1763 1764/* 1765** Mail Filters (milter) 1766*/ 1767 1768/* 1769** 32-bit type used by milter 1770** (needed by libmilter even if MILTER isn't defined) 1771*/ 1772 1773typedef SM_INT32 mi_int32; 1774 1775#if MILTER 1776# define SMFTO_WRITE 0 /* Timeout for sending information */ 1777# define SMFTO_READ 1 /* Timeout waiting for a response */ 1778# define SMFTO_EOM 2 /* Timeout for ACK/NAK to EOM */ 1779# define SMFTO_CONNECT 3 /* Timeout for connect() */ 1780 1781# define SMFTO_NUM_TO 4 /* Total number of timeouts */ 1782 1783struct milter 1784{ 1785 char *mf_name; /* filter name */ 1786 BITMAP256 mf_flags; /* MTA flags */ 1787 mi_int32 mf_fvers; /* filter version */ 1788 mi_int32 mf_fflags; /* filter flags */ 1789 mi_int32 mf_pflags; /* protocol flags */ 1790 char *mf_conn; /* connection info */ 1791 int mf_sock; /* connected socket */ 1792 char mf_state; /* state of filter */ 1793 char mf_lflags; /* "local" flags */ 1794 int mf_idx; /* milter number (index) */ 1795 time_t mf_timeout[SMFTO_NUM_TO]; /* timeouts */ 1796#if _FFR_MILTER_CHECK 1797 /* for testing only */ 1798 mi_int32 mf_mta_prot_version; 1799 mi_int32 mf_mta_prot_flags; 1800 mi_int32 mf_mta_actions; 1801#endif /* _FFR_MILTER_CHECK */ 1802}; 1803 1804#define MI_LFL_NONE 0x00000000 1805#define MI_LFLAGS_SYM(st) (1 << (st)) /* has its own symlist for stage st */ 1806 1807struct milters 1808{ 1809 mi_int32 mis_flags; /* filter flags */ 1810}; 1811typedef struct milters milters_T; 1812 1813#define MIS_FL_NONE 0x00000000 /* no requirements... */ 1814#define MIS_FL_DEL_RCPT 0x00000001 /* can delete rcpt */ 1815#define MIS_FL_REJ_RCPT 0x00000002 /* can reject rcpt */ 1816 1817 1818/* MTA flags */ 1819# define SMF_REJECT 'R' /* Reject connection on filter fail */ 1820# define SMF_TEMPFAIL 'T' /* tempfail connection on failure */ 1821# define SMF_TEMPDROP '4' /* 421 connection on failure */ 1822 1823EXTERN struct milter *InputFilters[MAXFILTERS]; 1824EXTERN char *InputFilterList; 1825EXTERN int MilterLogLevel; 1826 1827/* functions */ 1828extern void setup_daemon_milters __P((void)); 1829#endif /* MILTER */ 1830 1831/* 1832** Vendor codes 1833** 1834** Vendors can customize sendmail to add special behaviour, 1835** generally for back compatibility. Ideally, this should 1836** be set up in the .cf file using the "V" command. However, 1837** it's quite reasonable for some vendors to want the default 1838** be their old version; this can be set using 1839** -DVENDOR_DEFAULT=VENDOR_xxx 1840** in the Makefile. 1841** 1842** Vendors should apply to sendmail@sendmail.org for 1843** unique vendor codes. 1844*/ 1845 1846#define VENDOR_BERKELEY 1 /* Berkeley-native configuration file */ 1847#define VENDOR_SUN 2 /* Sun-native configuration file */ 1848#define VENDOR_HP 3 /* Hewlett-Packard specific config syntax */ 1849#define VENDOR_IBM 4 /* IBM specific config syntax */ 1850#define VENDOR_SENDMAIL 5 /* Proofpoint, Inc. specific config syntax */ 1851#define VENDOR_DEC 6 /* Compaq, DEC, Digital */ 1852 1853/* prototypes for vendor-specific hook routines */ 1854extern void vendor_daemon_setup __P((ENVELOPE *)); 1855extern void vendor_set_uid __P((UID_T)); 1856 1857 1858/* 1859** Terminal escape codes. 1860** 1861** To make debugging output clearer. 1862*/ 1863 1864struct termescape 1865{ 1866 char *te_rv_on; /* turn reverse-video on */ 1867 char *te_under_on; /* turn underlining on */ 1868 char *te_normal; /* revert to normal output */ 1869}; 1870 1871/* 1872** Additional definitions 1873*/ 1874 1875/* 1876** d_flags, see daemon.c 1877** general rule: lower case: required, upper case: No 1878*/ 1879 1880#define D_AUTHREQ 'a' /* authentication required */ 1881#define D_BINDIF 'b' /* use if_addr for outgoing connection */ 1882#define D_CANONREQ 'c' /* canonification required (cf) */ 1883#define D_IFNHELO 'h' /* use if name for HELO */ 1884#define D_FQMAIL 'f' /* fq sender address required (cf) */ 1885#define D_FQRCPT 'r' /* fq recipient address required (cf) */ 1886#define D_SMTPS 's' /* SMTP over SSL (smtps) */ 1887#define D_UNQUALOK 'u' /* unqualified address is ok (cf) */ 1888#define D_NOAUTH 'A' /* no AUTH */ 1889#define D_NOCANON 'C' /* no canonification (cf) */ 1890#define D_NOETRN 'E' /* no ETRN (MSA) */ 1891#define D_NOTLS 'S' /* don't use STARTTLS */ 1892#define D_ETRNONLY ((char)0x01) /* allow only ETRN (disk low) */ 1893#define D_OPTIONAL 'O' /* optional socket */ 1894#define D_DISABLE ((char)0x02) /* optional socket disabled */ 1895#define D_ISSET ((char)0x03) /* this client struct is set */ 1896 1897#if STARTTLS 1898/* 1899** TLS 1900*/ 1901 1902/* what to do in the TLS initialization */ 1903#define TLS_I_NONE 0x00000000 /* no requirements... */ 1904#define TLS_I_CERT_EX 0x00000001 /* cert must exist */ 1905#define TLS_I_CERT_UNR 0x00000002 /* cert must be g/o unreadable */ 1906#define TLS_I_KEY_EX 0x00000004 /* key must exist */ 1907#define TLS_I_KEY_UNR 0x00000008 /* key must be g/o unreadable */ 1908#define TLS_I_CERTP_EX 0x00000010 /* CA cert path must exist */ 1909#define TLS_I_CERTP_UNR 0x00000020 /* CA cert path must be g/o unreadable */ 1910#define TLS_I_CERTF_EX 0x00000040 /* CA cert file must exist */ 1911#define TLS_I_CERTF_UNR 0x00000080 /* CA cert file must be g/o unreadable */ 1912#define TLS_I_RSA_TMP 0x00000100 /* RSA TMP must be generated */ 1913#define TLS_I_USE_KEY 0x00000200 /* private key must usable */ 1914#define TLS_I_USE_CERT 0x00000400 /* certificate must be usable */ 1915#define TLS_I_VRFY_PATH 0x00000800 /* load verify path must succeed */ 1916#define TLS_I_VRFY_LOC 0x00001000 /* load verify default must succeed */ 1917#define TLS_I_CACHE 0x00002000 /* require cache */ 1918#define TLS_I_TRY_DH 0x00004000 /* try DH certificate */ 1919#define TLS_I_REQ_DH 0x00008000 /* require DH certificate */ 1920#define TLS_I_DHPAR_EX 0x00010000 /* require DH parameters */ 1921#define TLS_I_DHPAR_UNR 0x00020000 /* DH param. must be g/o unreadable */ 1922#define TLS_I_DH512 0x00040000 /* generate 512bit DH param */ 1923#define TLS_I_DH1024 0x00080000 /* generate 1024bit DH param */ 1924#define TLS_I_DH2048 0x00100000 /* generate 2048bit DH param */ 1925#define TLS_I_NO_VRFY 0x00200000 /* do not require authentication */ 1926#define TLS_I_KEY_OUNR 0x00400000 /* Key must be other unreadable */ 1927#define TLS_I_CRLF_EX 0x00800000 /* CRL file must exist */ 1928#define TLS_I_CRLF_UNR 0x01000000 /* CRL file must be g/o unreadable */ 1929 1930/* require server cert */ 1931#define TLS_I_SRV_CERT (TLS_I_CERT_EX | TLS_I_KEY_EX | \ 1932 TLS_I_KEY_UNR | TLS_I_KEY_OUNR | \ 1933 TLS_I_CERTP_EX | TLS_I_CERTF_EX | \ 1934 TLS_I_USE_KEY | TLS_I_USE_CERT | TLS_I_CACHE) 1935 1936/* server requirements */ 1937#define TLS_I_SRV (TLS_I_SRV_CERT | TLS_I_RSA_TMP | TLS_I_VRFY_PATH | \ 1938 TLS_I_VRFY_LOC | TLS_I_TRY_DH | TLS_I_DH1024 | \ 1939 TLS_I_CACHE) 1940 1941/* client requirements */ 1942#define TLS_I_CLT (TLS_I_KEY_UNR | TLS_I_KEY_OUNR) 1943 1944#define TLS_AUTH_OK 0 1945#define TLS_AUTH_NO 1 1946#define TLS_AUTH_FAIL (-1) 1947 1948/* functions */ 1949extern bool init_tls_library __P((bool _fipsmode)); 1950extern bool inittls __P((SSL_CTX **, unsigned long, long, bool, char *, char *, char *, char *, char *)); 1951extern bool initclttls __P((bool)); 1952extern void setclttls __P((bool)); 1953extern bool initsrvtls __P((bool)); 1954extern int tls_get_info __P((SSL *, bool, char *, MACROS_T *, bool)); 1955extern int endtls __P((SSL *, char *)); 1956extern void tlslogerr __P((int, const char *)); 1957 1958 1959EXTERN char *CACertPath; /* path to CA certificates (dir. with hashes) */ 1960EXTERN char *CACertFile; /* file with CA certificate */ 1961EXTERN char *CltCertFile; /* file with client certificate */ 1962EXTERN char *CltKeyFile; /* file with client private key */ 1963# if _FFR_TLS_1 1964EXTERN char *CipherList; /* list of ciphers */ 1965EXTERN char *DHParams5; /* file with DH parameters (512) */ 1966# endif /* _FFR_TLS_1 */ 1967EXTERN char *DHParams; /* file with DH parameters */ 1968EXTERN char *RandFile; /* source of random data */ 1969EXTERN char *SrvCertFile; /* file with server certificate */ 1970EXTERN char *SrvKeyFile; /* file with server private key */ 1971EXTERN char *CRLFile; /* file CRLs */ 1972#if _FFR_CRLPATH 1973EXTERN char *CRLPath; /* path to CRLs (dir. with hashes) */ 1974#endif /* _FFR_CRLPATH */ 1975EXTERN unsigned long TLS_Srv_Opts; /* TLS server options */ 1976EXTERN long Srv_SSL_Options, Clt_SSL_Options; /* SSL options */ 1977#endif /* STARTTLS */ 1978 1979/* 1980** Queue related items 1981*/ 1982 1983/* queue file names */ 1984#define ANYQFL_LETTER '?' 1985#define QUARQF_LETTER 'h' 1986#define DATAFL_LETTER 'd' 1987#define XSCRPT_LETTER 'x' 1988#define NORMQF_LETTER 'q' 1989#define NEWQFL_LETTER 't' 1990 1991# define TEMPQF_LETTER 'T' 1992# define LOSEQF_LETTER 'Q' 1993 1994/* queue sort order */ 1995#define QSO_BYPRIORITY 0 /* sort by message priority */ 1996#define QSO_BYHOST 1 /* sort by first host name */ 1997#define QSO_BYTIME 2 /* sort by submission time */ 1998#define QSO_BYFILENAME 3 /* sort by file name only */ 1999#define QSO_RANDOM 4 /* sort in random order */ 2000#define QSO_BYMODTIME 5 /* sort by modification time */ 2001#define QSO_NONE 6 /* do not sort */ 2002#if _FFR_RHS 2003# define QSO_BYSHUFFLE 7 /* sort by shuffled host name */ 2004#endif /* _FFR_RHS */ 2005 2006#define NOQGRP (-1) /* no queue group (yet) */ 2007#define ENVQGRP (-2) /* use queue group of envelope */ 2008#define NOAQGRP (-3) /* no queue group in addr (yet) */ 2009#define ISVALIDQGRP(x) ((x) >= 0) /* valid queue group? */ 2010#define NOQDIR (-1) /* no queue directory (yet) */ 2011#define ENVQDIR (-2) /* use queue directory of envelope */ 2012#define NOAQDIR (-3) /* no queue directory in addr (yet) */ 2013#define ISVALIDQDIR(x) ((x) >= 0) /* valid queue directory? */ 2014#define RS_QUEUEGROUP "queuegroup" /* ruleset for queue group selection */ 2015 2016#define NOW ((time_t) (-1)) /* queue return: now */ 2017 2018/* SuperSafe values */ 2019#define SAFE_NO 0 /* no fsync(): don't use... */ 2020#define SAFE_INTERACTIVE 1 /* limit fsync() in -odi */ 2021#define SAFE_REALLY 2 /* always fsync() */ 2022#define SAFE_REALLY_POSTMILTER 3 /* fsync() if milter says OK */ 2023 2024/* QueueMode bits */ 2025#define QM_NORMAL ' ' 2026#define QM_QUARANTINE 'Q' 2027#define QM_LOST 'L' 2028 2029/* Queue Run Limitations */ 2030struct queue_char 2031{ 2032 char *queue_match; /* string to match */ 2033 bool queue_negate; /* or not match, if set */ 2034 struct queue_char *queue_next; 2035}; 2036 2037/* run_work_group() flags */ 2038#define RWG_NONE 0x0000 2039#define RWG_FORK 0x0001 2040#define RWG_VERBOSE 0x0002 2041#define RWG_PERSISTENT 0x0004 2042#define RWG_FORCE 0x0008 2043#define RWG_RUNALL 0x0010 2044 2045typedef struct queue_char QUEUE_CHAR; 2046 2047EXTERN int volatile CurRunners; /* current number of runner children */ 2048EXTERN int MaxQueueRun; /* maximum number of jobs in one queue run */ 2049EXTERN int MaxQueueChildren; /* max # of forked queue children */ 2050EXTERN int MaxRunnersPerQueue; /* max # proc's active in queue group */ 2051EXTERN int NiceQueueRun; /* nice queue runs to this value */ 2052EXTERN int NumQueue; /* number of queue groups */ 2053EXTERN int QueueFileMode; /* mode on files in mail queue */ 2054EXTERN int QueueMode; /* which queue items to act upon */ 2055EXTERN int QueueSortOrder; /* queue sorting order algorithm */ 2056EXTERN time_t MinQueueAge; /* min delivery interval */ 2057#if _FFR_EXPDELAY 2058EXTERN time_t MaxQueueAge; /* max delivery interval */ 2059#endif /* _FFR_EXPDELAY */ 2060EXTERN time_t QueueIntvl; /* intervals between running the queue */ 2061EXTERN char *QueueDir; /* location of queue directory */ 2062EXTERN QUEUE_CHAR *QueueLimitId; /* limit queue run to id */ 2063EXTERN QUEUE_CHAR *QueueLimitQuarantine; /* limit queue run to quarantine reason */ 2064EXTERN QUEUE_CHAR *QueueLimitRecipient; /* limit queue run to rcpt */ 2065EXTERN QUEUE_CHAR *QueueLimitSender; /* limit queue run to sender */ 2066EXTERN QUEUEGRP *Queue[MAXQUEUEGROUPS + 1]; /* queue groups */ 2067 2068/* functions */ 2069extern void assign_queueid __P((ENVELOPE *)); 2070extern ADDRESS *copyqueue __P((ADDRESS *, SM_RPOOL_T *)); 2071extern void cleanup_queues __P((void)); 2072extern bool doqueuerun __P((void)); 2073extern void initsys __P((ENVELOPE *)); 2074extern void loseqfile __P((ENVELOPE *, char *)); 2075extern int name2qid __P((char *)); 2076extern char *qid_printname __P((ENVELOPE *)); 2077extern char *qid_printqueue __P((int, int)); 2078extern void quarantine_queue __P((char *, int)); 2079extern char *queuename __P((ENVELOPE *, int)); 2080extern void queueup __P((ENVELOPE *, bool, bool)); 2081extern bool runqueue __P((bool, bool, bool, bool)); 2082extern bool run_work_group __P((int, int)); 2083extern void set_def_queueval __P((QUEUEGRP *, bool)); 2084extern void setup_queues __P((bool)); 2085extern bool setnewqueue __P((ENVELOPE *)); 2086extern bool shouldqueue __P((long, time_t)); 2087extern void sync_queue_time __P((void)); 2088extern void init_qid_alg __P((void)); 2089extern int print_single_queue __P((int, int)); 2090#if REQUIRES_DIR_FSYNC 2091# define SYNC_DIR(path, panic) sync_dir(path, panic) 2092extern void sync_dir __P((char *, bool)); 2093#else /* REQUIRES_DIR_FSYNC */ 2094# define SYNC_DIR(path, panic) ((void) 0) 2095#endif /* REQUIRES_DIR_FSYNC */ 2096 2097/* 2098** Timeouts 2099** 2100** Indicated values are the MINIMUM per RFC 1123 section 5.3.2. 2101*/ 2102 2103EXTERN struct 2104{ 2105 /* RFC 1123-specified timeouts [minimum value] */ 2106 time_t to_initial; /* initial greeting timeout [5m] */ 2107 time_t to_mail; /* MAIL command [5m] */ 2108 time_t to_rcpt; /* RCPT command [5m] */ 2109 time_t to_datainit; /* DATA initiation [2m] */ 2110 time_t to_datablock; /* DATA block [3m] */ 2111 time_t to_datafinal; /* DATA completion [10m] */ 2112 time_t to_nextcommand; /* next command [5m] */ 2113 /* following timeouts are not mentioned in RFC 1123 */ 2114 time_t to_iconnect; /* initial connection timeout (first try) */ 2115 time_t to_connect; /* initial connection timeout (later tries) */ 2116 time_t to_aconnect; /* all connections timeout (MX and A records) */ 2117 time_t to_rset; /* RSET command */ 2118 time_t to_helo; /* HELO command */ 2119 time_t to_quit; /* QUIT command */ 2120 time_t to_miscshort; /* misc short commands (NOOP, VERB, etc) */ 2121 time_t to_ident; /* IDENT protocol requests */ 2122 time_t to_fileopen; /* opening :include: and .forward files */ 2123 time_t to_control; /* process a control socket command */ 2124 time_t to_lhlo; /* LMTP: LHLO command */ 2125#if SASL 2126 time_t to_auth; /* AUTH dialogue [10m] */ 2127#endif /* SASL */ 2128#if STARTTLS 2129 time_t to_starttls; /* STARTTLS dialogue [10m] */ 2130#endif /* STARTTLS */ 2131 /* following are per message */ 2132 time_t to_q_return[MAXTOCLASS]; /* queue return timeouts */ 2133 time_t to_q_warning[MAXTOCLASS]; /* queue warning timeouts */ 2134 time_t res_retrans[MAXRESTOTYPES]; /* resolver retransmit */ 2135 int res_retry[MAXRESTOTYPES]; /* resolver retry */ 2136} TimeOuts; 2137 2138/* timeout classes for return and warning timeouts */ 2139#define TOC_NORMAL 0 /* normal delivery */ 2140#define TOC_URGENT 1 /* urgent delivery */ 2141#define TOC_NONURGENT 2 /* non-urgent delivery */ 2142#define TOC_DSN 3 /* DSN delivery */ 2143 2144/* resolver timeout specifiers */ 2145#define RES_TO_FIRST 0 /* first attempt */ 2146#define RES_TO_NORMAL 1 /* subsequent attempts */ 2147#define RES_TO_DEFAULT 2 /* default value */ 2148 2149/* functions */ 2150extern void inittimeouts __P((char *, bool)); 2151 2152/* 2153** Interface probing 2154*/ 2155 2156#define DPI_PROBENONE 0 /* Don't probe any interfaces */ 2157#define DPI_PROBEALL 1 /* Probe all interfaces */ 2158#define DPI_SKIPLOOPBACK 2 /* Don't probe loopback interfaces */ 2159 2160/* 2161** Trace information 2162*/ 2163 2164/* macros for debugging flags */ 2165#if NOT_SENDMAIL 2166# define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level) 2167#else 2168# define tTd(flag, level) (tTdvect[flag] >= (unsigned char)level && !IntSig) 2169#endif 2170#define tTdlevel(flag) (tTdvect[flag]) 2171 2172/* variables */ 2173extern unsigned char tTdvect[100]; /* trace vector */ 2174 2175/* 2176** Miscellaneous information. 2177*/ 2178 2179/* 2180** The "no queue id" queue id for sm_syslog 2181*/ 2182 2183#define NOQID "" 2184 2185#define CURHOSTNAME (CurHostName == NULL ? "local" : CurHostName) 2186 2187/* 2188** Some in-line functions 2189*/ 2190 2191/* set exit status */ 2192#define setstat(s) \ 2193 do \ 2194 { \ 2195 if (ExitStat == EX_OK || ExitStat == EX_TEMPFAIL) \ 2196 ExitStat = s; \ 2197 } while (0) 2198 2199 2200#define STRUCTCOPY(s, d) d = s 2201 2202/* free a pointer if it isn't NULL and set it to NULL */ 2203#define SM_FREE_CLR(p) \ 2204 do \ 2205 { \ 2206 if ((p) != NULL) \ 2207 { \ 2208 sm_free(p); \ 2209 (p) = NULL; \ 2210 } \ 2211 } while (0) 2212 2213/* 2214** Update a permanent string variable with a new value. 2215** The old value is freed, the new value is strdup'ed. 2216** 2217** We use sm_pstrdup_x to duplicate the string because it raises 2218** an exception on error, and because it allocates "permanent storage" 2219** which is not expected to be freed before process exit. 2220** The latter is important for memory leak analysis. 2221** 2222** If an exception occurs while strdup'ing the new value, 2223** then the variable remains set to the old value. 2224** That's why the strdup must occur before we free the old value. 2225** 2226** The macro uses a do loop so that this idiom will work: 2227** if (...) 2228** PSTRSET(var, val1); 2229** else 2230** PSTRSET(var, val2); 2231*/ 2232#define PSTRSET(var, val) \ 2233 do \ 2234 { \ 2235 char *_newval = sm_pstrdup_x(val); \ 2236 if (var != NULL) \ 2237 sm_free(var); \ 2238 var = _newval; \ 2239 } while (0) 2240 2241#define _CHECK_RESTART \ 2242 do \ 2243 { \ 2244 if (ShutdownRequest != NULL) \ 2245 shutdown_daemon(); \ 2246 else if (RestartRequest != NULL) \ 2247 restart_daemon(); \ 2248 else if (RestartWorkGroup) \ 2249 restart_marked_work_groups(); \ 2250 } while (0) 2251 2252# define CHECK_RESTART _CHECK_RESTART 2253 2254#define CHK_CUR_RUNNERS(fct, idx, count) \ 2255 do \ 2256 { \ 2257 if (CurRunners < 0) \ 2258 { \ 2259 if (LogLevel > 3) \ 2260 sm_syslog(LOG_ERR, NOQID, \ 2261 "%s: CurRunners=%d, i=%d, count=%d, status=should not happen", \ 2262 fct, CurRunners, idx, count); \ 2263 CurRunners = 0; \ 2264 } \ 2265 } while (0) 2266 2267/* reply types (text in SmtpMsgBuffer) */ 2268#define XS_DEFAULT 0 2269#define XS_STARTTLS 1 2270#define XS_AUTH 2 2271#define XS_GREET 3 2272#define XS_EHLO 4 2273#define XS_MAIL 5 2274#define XS_RCPT 6 2275#define XS_DATA 7 2276#define XS_EOM 8 2277#define XS_DATA2 9 2278#define XS_RCPT2 10 2279#define XS_QUIT 15 2280 2281/* 2282** Global variables. 2283*/ 2284 2285#if _FFR_ADDR_TYPE_MODES 2286EXTERN bool AddrTypeModes; /* addr_type: extra "mode" information */ 2287#endif /* _FFR_ADDR_TYPE_MODES */ 2288EXTERN bool AllowBogusHELO; /* allow syntax errors on HELO command */ 2289EXTERN bool CheckAliases; /* parse addresses during newaliases */ 2290#if _FFR_QUEUE_RUN_PARANOIA 2291EXTERN int CheckQueueRunners; /* check whether queue runners are OK */ 2292#endif /* _FFR_QUEUE_RUN_PARANOIA */ 2293EXTERN bool ColonOkInAddr; /* single colon legal in address */ 2294#if !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) 2295EXTERN bool ConfigFileRead; /* configuration file has been read */ 2296#endif /* !defined(_USE_SUN_NSSWITCH_) && !defined(_USE_DEC_SVC_CONF_) */ 2297EXTERN bool DisConnected; /* running with OutChannel redirect to transcript file */ 2298EXTERN bool DontExpandCnames; /* do not $[...$] expand CNAMEs */ 2299EXTERN bool DontInitGroups; /* avoid initgroups() because of NIS cost */ 2300EXTERN bool DontLockReadFiles; /* don't read lock support files */ 2301EXTERN bool DontPruneRoutes; /* don't prune source routes */ 2302EXTERN bool ForkQueueRuns; /* fork for each job when running the queue */ 2303EXTERN bool FromFlag; /* if set, "From" person is explicit */ 2304EXTERN bool FipsMode; 2305EXTERN bool GrabTo; /* if set, get recipients from msg */ 2306EXTERN bool EightBitAddrOK; /* we'll let 8-bit addresses through */ 2307EXTERN bool HasEightBits; /* has at least one eight bit input byte */ 2308EXTERN bool HasWildcardMX; /* don't use MX records when canonifying */ 2309EXTERN bool HoldErrs; /* only output errors to transcript */ 2310EXTERN bool IgnoreHostStatus; /* ignore long term host status files */ 2311EXTERN bool IgnrDot; /* don't let dot end messages */ 2312EXTERN bool LogUsrErrs; /* syslog user errors (e.g., SMTP RCPT cmd) */ 2313EXTERN bool MatchGecos; /* look for user names in gecos field */ 2314EXTERN bool MeToo; /* send to the sender also */ 2315EXTERN bool NoAlias; /* suppress aliasing */ 2316EXTERN bool NoConnect; /* don't connect to non-local mailers */ 2317EXTERN bool OnlyOneError; /* .... or only want to give one SMTP reply */ 2318EXTERN bool QuickAbort; /* .... but only if we want a quick abort */ 2319#if _FFR_REJECT_NUL_BYTE 2320EXTERN bool RejectNUL; /* reject NUL input byte? */ 2321#endif /* _FFR_REJECT_NUL_BYTE */ 2322#if REQUIRES_DIR_FSYNC 2323EXTERN bool RequiresDirfsync; /* requires fsync() for directory */ 2324#endif /* REQUIRES_DIR_FSYNC */ 2325EXTERN bool volatile RestartWorkGroup; /* daemon needs to restart some work groups */ 2326EXTERN bool RrtImpliesDsn; /* turn Return-Receipt-To: into DSN */ 2327EXTERN bool SaveFrom; /* save leading "From" lines */ 2328EXTERN bool SendMIMEErrors; /* send error messages in MIME format */ 2329EXTERN bool SevenBitInput; /* force 7-bit data on input */ 2330EXTERN bool SingleLineFromHeader; /* force From: header to be one line */ 2331EXTERN bool SingleThreadDelivery; /* single thread hosts on delivery */ 2332EXTERN bool SoftBounce; /* replace 5xy by 4xy (for testing) */ 2333EXTERN bool volatile StopRequest; /* stop sending output */ 2334EXTERN bool SuprErrs; /* set if we are suppressing errors */ 2335EXTERN bool TryNullMXList; /* if we are the best MX, try host directly */ 2336EXTERN bool UseMSP; /* mail submission: group writable queue ok? */ 2337EXTERN bool WorkAroundBrokenAAAA; /* some nameservers return SERVFAIL on AAAA queries */ 2338EXTERN bool UseErrorsTo; /* use Errors-To: header (back compat) */ 2339EXTERN bool UseNameServer; /* using DNS -- interpret h_errno & MX RRs */ 2340EXTERN char InetMode; /* default network for daemon mode */ 2341EXTERN char OpMode; /* operation mode, see below */ 2342EXTERN char SpaceSub; /* substitution for <lwsp> */ 2343#if _FFR_BADRCPT_SHUTDOWN 2344EXTERN int BadRcptShutdown; /* Shutdown connection for rejected RCPTs */ 2345EXTERN int BadRcptShutdownGood; /* above even when there are good RCPTs */ 2346#endif /* _FFR_BADRCPT_SHUTDOWN */ 2347EXTERN int BadRcptThrottle; /* Throttle rejected RCPTs per SMTP message */ 2348#if _FFR_RCPTTHROTDELAY 2349EXTERN unsigned int BadRcptThrottleDelay; /* delay for BadRcptThrottle */ 2350#else 2351# define BadRcptThrottleDelay 1 2352#endif /* _FFR_RCPTTHROTDELAY */ 2353EXTERN int CheckpointInterval; /* queue file checkpoint interval */ 2354EXTERN int ConfigLevel; /* config file level */ 2355EXTERN int ConnRateThrottle; /* throttle for SMTP connection rate */ 2356EXTERN int volatile CurChildren; /* current number of daemonic children */ 2357EXTERN int CurrentLA; /* current load average */ 2358EXTERN int DefaultNotify; /* default DSN notification flags */ 2359EXTERN int DelayLA; /* load average to delay connections */ 2360EXTERN int DontProbeInterfaces; /* don't probe interfaces for names */ 2361EXTERN int Errors; /* set if errors (local to single pass) */ 2362EXTERN int ExitStat; /* exit status code */ 2363EXTERN int FastSplit; /* fast initial splitting of envelopes */ 2364EXTERN int FileMode; /* mode on files */ 2365EXTERN int LineNumber; /* line number in current input */ 2366EXTERN int LogLevel; /* level of logging to perform */ 2367EXTERN int MaxAliasRecursion; /* maximum depth of alias recursion */ 2368EXTERN int MaxChildren; /* maximum number of daemonic children */ 2369EXTERN int MaxForwardEntries; /* maximum number of forward entries */ 2370EXTERN int MaxHeadersLength; /* max length of headers */ 2371EXTERN int MaxHopCount; /* max # of hops until bounce */ 2372EXTERN int MaxMacroRecursion; /* maximum depth of macro recursion */ 2373EXTERN int MaxMimeFieldLength; /* maximum MIME field length */ 2374EXTERN int MaxMimeHeaderLength; /* maximum MIME header length */ 2375EXTERN int MaxNOOPCommands; /* max "noise" commands before slowdown */ 2376 2377EXTERN int MaxRcptPerMsg; /* max recipients per SMTP message */ 2378EXTERN int MaxRuleRecursion; /* maximum depth of ruleset recursion */ 2379#if _FFR_MSG_ACCEPT 2380EXTERN char *MessageAccept; /* "Message accepted for delivery" reply text */ 2381#endif /* _FFR_MSG_ACCEPT */ 2382 2383EXTERN int MimeMode; /* MIME processing mode */ 2384EXTERN int NoRecipientAction; 2385 2386#if SM_CONF_SHM 2387EXTERN int Numfilesys; /* number of queue file systems */ 2388EXTERN int *PNumFileSys; 2389# define NumFileSys (*PNumFileSys) 2390# else /* SM_CONF_SHM */ 2391EXTERN int NumFileSys; /* number of queue file systems */ 2392# endif /* SM_CONF_SHM */ 2393 2394EXTERN int QueueLA; /* load average starting forced queueing */ 2395EXTERN int RefuseLA; /* load average refusing connections */ 2396EXTERN time_t RejectLogInterval; /* time btwn log msgs while refusing */ 2397#if _FFR_MEMSTAT 2398EXTERN long QueueLowMem; /* low memory starting forced queueing */ 2399EXTERN long RefuseLowMem; /* low memory refusing connections */ 2400EXTERN char *MemoryResource;/* memory resource to look up */ 2401#endif /* _FFR_MEMSTAT */ 2402EXTERN int SuperSafe; /* be extra careful, even if expensive */ 2403EXTERN int VendorCode; /* vendor-specific operation enhancements */ 2404EXTERN int Verbose; /* set if blow-by-blow desired */ 2405EXTERN gid_t DefGid; /* default gid to run as */ 2406EXTERN gid_t RealGid; /* real gid of caller */ 2407EXTERN gid_t RunAsGid; /* GID to become for bulk of run */ 2408EXTERN gid_t EffGid; /* effective gid */ 2409#if SM_CONF_SHM 2410EXTERN key_t ShmKey; /* shared memory key */ 2411EXTERN char *ShmKeyFile; /* shared memory key file */ 2412#endif /* SM_CONF_SHM */ 2413EXTERN pid_t CurrentPid; /* current process id */ 2414EXTERN pid_t DaemonPid; /* process id of daemon */ 2415EXTERN pid_t PidFilePid; /* daemon/queue runner who wrote pid file */ 2416EXTERN uid_t DefUid; /* default uid to run as */ 2417EXTERN uid_t RealUid; /* real uid of caller */ 2418EXTERN uid_t RunAsUid; /* UID to become for bulk of run */ 2419EXTERN uid_t TrustedUid; /* uid of trusted user for files and startup */ 2420EXTERN size_t DataFileBufferSize; /* size of buf for in-core data file */ 2421EXTERN time_t DeliverByMin; /* deliver by minimum time */ 2422EXTERN time_t DialDelay; /* delay between dial-on-demand tries */ 2423EXTERN time_t SafeAlias; /* interval to wait until @:@ in alias file */ 2424EXTERN time_t ServiceCacheMaxAge; /* refresh interval for cache */ 2425EXTERN size_t XscriptFileBufferSize; /* size of buf for in-core transcript file */ 2426EXTERN MODE_T OldUmask; /* umask when sendmail starts up */ 2427EXTERN long MaxMessageSize; /* advertised max size we will accept */ 2428EXTERN long MinBlocksFree; /* min # of blocks free on queue fs */ 2429EXTERN long QueueFactor; /* slope of queue function */ 2430EXTERN long WkClassFact; /* multiplier for message class -> priority */ 2431EXTERN long WkRecipFact; /* multiplier for # of recipients -> priority */ 2432EXTERN long WkTimeFact; /* priority offset each time this job is run */ 2433EXTERN char *ControlSocketName; /* control socket filename [control.c] */ 2434EXTERN char *CurHostName; /* current host we are dealing with */ 2435EXTERN char *DeadLetterDrop; /* path to dead letter office */ 2436EXTERN char *DefUser; /* default user to run as (from DefUid) */ 2437EXTERN char *DefaultCharSet; /* default character set for MIME */ 2438EXTERN char *DoubleBounceAddr; /* where to send double bounces */ 2439EXTERN char *ErrMsgFile; /* file to prepend to all error messages */ 2440EXTERN char *FallbackMX; /* fall back MX host */ 2441EXTERN char *FallbackSmartHost; /* fall back smart host */ 2442EXTERN char *FileName; /* name to print on error messages */ 2443EXTERN char *ForwardPath; /* path to search for .forward files */ 2444EXTERN char *HeloName; /* hostname to announce in HELO */ 2445EXTERN char *HelpFile; /* location of SMTP help file */ 2446EXTERN char *HostStatDir; /* location of host status information */ 2447EXTERN char *HostsFile; /* path to /etc/hosts file */ 2448extern char *Mbdb; /* mailbox database type */ 2449EXTERN char *MustQuoteChars; /* quote these characters in phrases */ 2450EXTERN char *MyHostName; /* name of this host for SMTP messages */ 2451EXTERN char *OperatorChars; /* operators (old $o macro) */ 2452EXTERN char *PidFile; /* location of proc id file [conf.c] */ 2453EXTERN char *PostMasterCopy; /* address to get errs cc's */ 2454EXTERN char *ProcTitlePrefix; /* process title prefix */ 2455EXTERN char *RealHostName; /* name of host we are talking to */ 2456EXTERN char *RealUserName; /* real user name of caller */ 2457EXTERN char *volatile RestartRequest;/* a sendmail restart has been requested */ 2458EXTERN char *RunAsUserName; /* user to become for bulk of run */ 2459EXTERN char *SafeFileEnv; /* chroot location for file delivery */ 2460EXTERN char *ServiceSwitchFile; /* backup service switch */ 2461EXTERN char *volatile ShutdownRequest;/* a sendmail shutdown has been requested */ 2462EXTERN bool volatile IntSig; 2463EXTERN char *SmtpGreeting; /* SMTP greeting message (old $e macro) */ 2464EXTERN char *SmtpPhase; /* current phase in SMTP processing */ 2465EXTERN char SmtpError[MAXLINE]; /* save failure error messages */ 2466EXTERN char *StatFile; /* location of statistics summary */ 2467EXTERN char *TimeZoneSpec; /* override time zone specification */ 2468EXTERN char *UdbSpec; /* user database source spec */ 2469EXTERN char *UnixFromLine; /* UNIX From_ line (old $l macro) */ 2470EXTERN char **ExternalEnviron; /* saved user (input) environment */ 2471EXTERN char **SaveArgv; /* argument vector for re-execing */ 2472EXTERN BITMAP256 DontBlameSendmail; /* DontBlameSendmail bits */ 2473EXTERN SM_FILE_T *InChannel; /* input connection */ 2474EXTERN SM_FILE_T *OutChannel; /* output connection */ 2475EXTERN SM_FILE_T *TrafficLogFile; /* file in which to log all traffic */ 2476#if HESIOD 2477EXTERN void *HesiodContext; 2478#endif /* HESIOD */ 2479EXTERN ENVELOPE *CurEnv; /* envelope currently being processed */ 2480EXTERN char *RuleSetNames[MAXRWSETS]; /* ruleset number to name */ 2481EXTERN char *UserEnviron[MAXUSERENVIRON + 1]; 2482EXTERN struct rewrite *RewriteRules[MAXRWSETS]; 2483EXTERN struct termescape TermEscape; /* terminal escape codes */ 2484EXTERN SOCKADDR ConnectOnlyTo; /* override connection address (for testing) */ 2485EXTERN SOCKADDR RealHostAddr; /* address of host we are talking to */ 2486extern const SM_EXC_TYPE_T EtypeQuickAbort; /* type of a QuickAbort exception */ 2487 2488 2489EXTERN int ConnectionRateWindowSize; 2490#if STARTTLS && USE_OPENSSL_ENGINE 2491EXTERN bool SSLEngineInitialized; 2492#endif /* STARTTLS && USE_OPENSSL_ENGINE */ 2493 2494/* 2495** Declarations of useful functions 2496*/ 2497 2498/* Transcript file */ 2499extern void closexscript __P((ENVELOPE *)); 2500extern void openxscript __P((ENVELOPE *)); 2501 2502/* error related */ 2503extern void buffer_errors __P((void)); 2504extern void flush_errors __P((bool)); 2505extern void PRINTFLIKE(1, 2) message __P((const char *, ...)); 2506extern void PRINTFLIKE(1, 2) nmessage __P((const char *, ...)); 2507extern void PRINTFLIKE(1, 2) syserr __P((const char *, ...)); 2508extern void PRINTFLIKE(2, 3) usrerrenh __P((char *, const char *, ...)); 2509extern void PRINTFLIKE(1, 2) usrerr __P((const char *, ...)); 2510extern int isenhsc __P((const char *, int)); 2511extern int extenhsc __P((const char *, int, char *)); 2512 2513/* alias file */ 2514extern void alias __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2515extern bool aliaswait __P((MAP *, char *, bool)); 2516extern void forward __P((ADDRESS *, ADDRESS **, int, ENVELOPE *)); 2517extern void readaliases __P((MAP *, SM_FILE_T *, bool, bool)); 2518extern bool rebuildaliases __P((MAP *, bool)); 2519extern void setalias __P((char *)); 2520 2521/* logging */ 2522extern void logdelivery __P((MAILER *, MCI *, char *, const char *, ADDRESS *, time_t, ENVELOPE *)); 2523extern void logsender __P((ENVELOPE *, char *)); 2524extern void PRINTFLIKE(3, 4) sm_syslog __P((int, const char *, const char *, ...)); 2525 2526/* SMTP */ 2527extern void giveresponse __P((int, char *, MAILER *, MCI *, ADDRESS *, time_t, ENVELOPE *, ADDRESS *)); 2528extern int reply __P((MAILER *, MCI *, ENVELOPE *, time_t, void (*)__P((char *, bool, MAILER *, MCI *, ENVELOPE *)), char **, int)); 2529extern void smtp __P((char *volatile, BITMAP256, ENVELOPE *volatile)); 2530#if SASL 2531extern int smtpauth __P((MAILER *, MCI *, ENVELOPE *)); 2532#endif /* SASL */ 2533extern int smtpdata __P((MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2534extern int smtpgetstat __P((MAILER *, MCI *, ENVELOPE *)); 2535extern int smtpmailfrom __P((MAILER *, MCI *, ENVELOPE *)); 2536extern void smtpmessage __P((char *, MAILER *, MCI *, ...)); 2537extern void smtpinit __P((MAILER *, MCI *, ENVELOPE *, bool)); 2538extern char *smtptodsn __P((int)); 2539extern int smtpprobe __P((MCI *)); 2540extern void smtpquit __P((MAILER *, MCI *, ENVELOPE *)); 2541extern int smtprcpt __P((ADDRESS *, MAILER *, MCI *, ENVELOPE *, ADDRESS *, time_t)); 2542extern void smtprset __P((MAILER *, MCI *, ENVELOPE *)); 2543 2544#define REPLYTYPE(r) ((r) / 100) /* first digit of reply code */ 2545#define REPLYCLASS(r) (((r) / 10) % 10) /* second digit of reply code */ 2546#define REPLYMINOR(r) ((r) % 10) /* last digit of reply code */ 2547#define ISSMTPCODE(c) (isascii(c[0]) && isdigit(c[0]) && \ 2548 isascii(c[1]) && isdigit(c[1]) && \ 2549 isascii(c[2]) && isdigit(c[2])) 2550#define ISSMTPREPLY(c) (ISSMTPCODE(c) && \ 2551 (c[3] == ' ' || c[3] == '-' || c[3] == '\0')) 2552 2553/* delivery */ 2554extern pid_t dowork __P((int, int, char *, bool, bool, ENVELOPE *)); 2555extern pid_t doworklist __P((ENVELOPE *, bool, bool)); 2556extern int endmailer __P((MCI *, ENVELOPE *, char **)); 2557extern int mailfile __P((char *volatile, MAILER *volatile, ADDRESS *, volatile long, ENVELOPE *)); 2558extern void sendall __P((ENVELOPE *, int)); 2559 2560/* stats */ 2561#define STATS_NORMAL 'n' 2562#define STATS_QUARANTINE 'q' 2563#define STATS_REJECT 'r' 2564#define STATS_CONNECT 'c' 2565 2566extern void markstats __P((ENVELOPE *, ADDRESS *, int)); 2567extern void clearstats __P((void)); 2568extern void poststats __P((char *)); 2569 2570/* control socket */ 2571extern void closecontrolsocket __P((bool)); 2572extern void clrcontrol __P((void)); 2573extern void control_command __P((int, ENVELOPE *)); 2574extern int opencontrolsocket __P((void)); 2575 2576#if MILTER 2577/* milter functions */ 2578extern void milter_config __P((char *, struct milter **, int)); 2579extern void milter_setup __P((char *)); 2580extern void milter_set_option __P((char *, char *, bool)); 2581extern bool milter_init __P((ENVELOPE *, char *, milters_T *)); 2582extern void milter_quit __P((ENVELOPE *)); 2583extern void milter_abort __P((ENVELOPE *)); 2584extern char *milter_connect __P((char *, SOCKADDR, ENVELOPE *, char *)); 2585extern char *milter_helo __P((char *, ENVELOPE *, char *)); 2586extern char *milter_envfrom __P((char **, ENVELOPE *, char *)); 2587extern char *milter_data_cmd __P((ENVELOPE *, char *)); 2588extern char *milter_envrcpt __P((char **, ENVELOPE *, char *, bool)); 2589extern char *milter_data __P((ENVELOPE *, char *)); 2590extern char *milter_unknown __P((char *, ENVELOPE *, char *)); 2591#endif /* MILTER */ 2592 2593extern char *addquotes __P((char *, SM_RPOOL_T *)); 2594extern char *arpadate __P((char *)); 2595extern bool atobool __P((char *)); 2596extern int atooct __P((char *)); 2597extern void auth_warning __P((ENVELOPE *, const char *, ...)); 2598extern int blocksignal __P((int)); 2599extern bool bitintersect __P((BITMAP256, BITMAP256)); 2600extern bool bitzerop __P((BITMAP256)); 2601extern int check_bodytype __P((char *)); 2602extern void buildfname __P((char *, char *, char *, int)); 2603extern bool chkclientmodifiers __P((int)); 2604extern bool chkdaemonmodifiers __P((int)); 2605extern int checkcompat __P((ADDRESS *, ENVELOPE *)); 2606#ifdef XDEBUG 2607extern void checkfd012 __P((char *)); 2608extern void checkfdopen __P((int, char *)); 2609#endif /* XDEBUG */ 2610extern void checkfds __P((char *)); 2611extern bool chownsafe __P((int, bool)); 2612extern void cleanstrcpy __P((char *, char *, int)); 2613#if SM_CONF_SHM 2614extern void cleanup_shm __P((bool)); 2615#endif /* SM_CONF_SHM */ 2616extern void close_sendmail_pid __P((void)); 2617extern void clrdaemon __P((void)); 2618extern void collect __P((SM_FILE_T *, bool, HDR **, ENVELOPE *, bool)); 2619extern bool connection_rate_check __P((SOCKADDR *, ENVELOPE *)); 2620extern time_t convtime __P((char *, int)); 2621extern char **copyplist __P((char **, bool, SM_RPOOL_T *)); 2622extern void copy_class __P((int, int)); 2623extern int count_open_connections __P((SOCKADDR *)); 2624extern time_t curtime __P((void)); 2625extern char *defcharset __P((ENVELOPE *)); 2626extern char *denlstring __P((char *, bool, bool)); 2627extern void dferror __P((SM_FILE_T *volatile, char *, ENVELOPE *)); 2628extern void disconnect __P((int, ENVELOPE *)); 2629extern void disk_status __P((SM_FILE_T *, char *)); 2630extern bool dns_getcanonname __P((char *, int, bool, int *, int *)); 2631extern pid_t dofork __P((void)); 2632extern int drop_privileges __P((bool)); 2633extern int dsntoexitstat __P((char *)); 2634extern void dumpfd __P((int, bool, bool)); 2635#if SM_HEAP_CHECK 2636extern void dumpstab __P((void)); 2637#endif /* SM_HEAP_CHECK */ 2638extern void dumpstate __P((char *)); 2639extern bool enoughdiskspace __P((long, ENVELOPE *)); 2640extern char *exitstat __P((char *)); 2641extern void fatal_error __P((SM_EXC_T *)); 2642extern char *fgetfolded __P((char *, int *, SM_FILE_T *)); 2643extern void fill_fd __P((int, char *)); 2644extern char *find_character __P((char *, int)); 2645extern int finduser __P((char *, bool *, SM_MBDB_T *)); 2646extern void finis __P((bool, bool, volatile int)); 2647extern void fixcrlf __P((char *, bool)); 2648extern long freediskspace __P((const char *, long *)); 2649#if NETINET6 && NEEDSGETIPNODE 2650extern void freehostent __P((struct hostent *)); 2651#endif /* NETINET6 && NEEDSGETIPNODE */ 2652extern char *get_column __P((char *, int, int, char *, int)); 2653extern char *getauthinfo __P((int, bool *)); 2654extern int getdtsize __P((void)); 2655extern int getla __P((void)); 2656extern char *getmodifiers __P((char *, BITMAP256)); 2657extern BITMAP256 *getrequests __P((ENVELOPE *)); 2658extern char *getvendor __P((int)); 2659extern void help __P((char *, ENVELOPE *)); 2660extern void init_md __P((int, char **)); 2661extern void initdaemon __P((void)); 2662extern void inithostmaps __P((void)); 2663extern void initmacros __P((ENVELOPE *)); 2664extern void initsetproctitle __P((int, char **, char **)); 2665extern void init_vendor_macros __P((ENVELOPE *)); 2666extern SIGFUNC_DECL intsig __P((int)); 2667extern bool isatom __P((const char *)); 2668extern bool isloopback __P((SOCKADDR sa)); 2669extern void load_if_names __P((void)); 2670extern bool lockfile __P((int, char *, char *, int)); 2671extern void log_sendmail_pid __P((ENVELOPE *)); 2672extern void logundelrcpts __P((ENVELOPE *, char *, int, bool)); 2673extern char lower __P((int)); 2674extern void makelower __P((char *)); 2675extern int makeconnection_ds __P((char *, MCI *)); 2676extern int makeconnection __P((char *, volatile unsigned int, MCI *, ENVELOPE *, time_t)); 2677extern void makeworkgroups __P((void)); 2678extern void markfailure __P((ENVELOPE *, ADDRESS *, MCI *, int, bool)); 2679extern void mark_work_group_restart __P((int, int)); 2680extern MCI *mci_new __P((SM_RPOOL_T *)); 2681extern char *munchstring __P((char *, char **, int)); 2682extern struct hostent *myhostname __P((char *, int)); 2683extern char *newstr __P((const char *)); 2684#if NISPLUS 2685extern char *nisplus_default_domain __P((void)); /* extern for Sun */ 2686#endif /* NISPLUS */ 2687extern bool path_is_dir __P((char *, bool)); 2688extern int pickqdir __P((QUEUEGRP *qg, long fsize, ENVELOPE *e)); 2689extern char *pintvl __P((time_t, bool)); 2690extern void printav __P((SM_FILE_T *, char **)); 2691extern void printmailer __P((SM_FILE_T *, MAILER *)); 2692extern void printnqe __P((SM_FILE_T *, char *)); 2693extern void printopenfds __P((bool)); 2694extern void printqueue __P((void)); 2695extern void printrules __P((void)); 2696extern pid_t prog_open __P((char **, int *, ENVELOPE *)); 2697extern bool putline __P((char *, MCI *)); 2698extern bool putxline __P((char *, size_t, MCI *, int)); 2699extern void queueup_macros __P((int, SM_FILE_T *, ENVELOPE *)); 2700extern void readcf __P((char *, bool, ENVELOPE *)); 2701extern SIGFUNC_DECL reapchild __P((int)); 2702extern int releasesignal __P((int)); 2703extern void resetlimits __P((void)); 2704extern void restart_daemon __P((void)); 2705extern void restart_marked_work_groups __P((void)); 2706extern bool rfc822_string __P((char *)); 2707extern void rmexpstab __P((void)); 2708extern bool savemail __P((ENVELOPE *, bool)); 2709extern void seed_random __P((void)); 2710extern void sendtoargv __P((char **, ENVELOPE *)); 2711extern void setclientoptions __P((char *)); 2712extern bool setdaemonoptions __P((char *)); 2713extern void setdefaults __P((ENVELOPE *)); 2714extern void setdefuser __P((void)); 2715extern bool setvendor __P((char *)); 2716extern void set_op_mode __P((int)); 2717extern void setoption __P((int, char *, bool, bool, ENVELOPE *)); 2718extern sigfunc_t setsignal __P((int, sigfunc_t)); 2719extern void sm_setuserenv __P((const char *, const char *)); 2720extern void settime __P((ENVELOPE *)); 2721#if STARTTLS 2722extern void set_tls_rd_tmo __P((int)); 2723#else /* STARTTLS */ 2724#define set_tls_rd_tmo(rd_tmo) 2725#endif /* STARTTLS */ 2726extern char *sfgets __P((char *, int, SM_FILE_T *, time_t, char *)); 2727extern char *shortenstring __P((const char *, size_t)); 2728extern char *shorten_hostname __P((char [])); 2729extern bool shorten_rfc822_string __P((char *, size_t)); 2730extern void shutdown_daemon __P((void)); 2731extern void sm_closefrom __P((int lowest, int highest)); 2732extern void sm_close_on_exec __P((int lowest, int highest)); 2733extern struct hostent *sm_gethostbyname __P((char *, int)); 2734extern struct hostent *sm_gethostbyaddr __P((char *, int, int)); 2735extern void sm_getla __P((void)); 2736extern struct passwd *sm_getpwnam __P((char *)); 2737extern struct passwd *sm_getpwuid __P((UID_T)); 2738extern void sm_setproctitle __P((bool, ENVELOPE *, const char *, ...)); 2739extern pid_t sm_wait __P((int *)); 2740extern bool split_by_recipient __P((ENVELOPE *e)); 2741extern void stop_sendmail __P((void)); 2742extern void stripbackslash __P((char *)); 2743extern bool strreplnonprt __P((char *, int)); 2744extern bool strcontainedin __P((bool, char *, char *)); 2745extern int switch_map_find __P((char *, char *[], short [])); 2746#if STARTTLS 2747extern void tls_set_verify __P((SSL_CTX *, SSL *, bool)); 2748#endif /* STARTTLS */ 2749extern bool transienterror __P((int)); 2750extern void truncate_at_delim __P((char *, size_t, int)); 2751extern void tTflag __P((char *)); 2752extern void tTsetup __P((unsigned char *, unsigned int, char *)); 2753extern SIGFUNC_DECL tick __P((int)); 2754extern char *ttypath __P((void)); 2755extern void unlockqueue __P((ENVELOPE *)); 2756#if !HASUNSETENV 2757extern void unsetenv __P((char *)); 2758#endif /* !HASUNSETENV */ 2759 2760/* update file system information: +/- some blocks */ 2761#if SM_CONF_SHM 2762extern void upd_qs __P((ENVELOPE *, int, int, char *)); 2763# define updfs(e, count, space, where) upd_qs(e, count, space, where) 2764#else /* SM_CONF_SHM */ 2765# define updfs(e, count, space, where) 2766# define upd_qs(e, count, space, where) 2767#endif /* SM_CONF_SHM */ 2768 2769extern char *username __P((void)); 2770extern bool usershellok __P((char *, char *)); 2771extern void vendor_post_defaults __P((ENVELOPE *)); 2772extern void vendor_pre_defaults __P((ENVELOPE *)); 2773extern int waitfor __P((pid_t)); 2774extern bool writable __P((char *, ADDRESS *, long)); 2775#if SM_HEAP_CHECK 2776# define xalloc(size) xalloc_tagged(size, __FILE__, __LINE__) 2777extern char *xalloc_tagged __P((int, char*, int)); 2778#else /* SM_HEAP_CHECK */ 2779extern char *xalloc __P((int)); 2780#endif /* SM_HEAP_CHECK */ 2781extern void xputs __P((SM_FILE_T *, const char *)); 2782extern char *xtextify __P((char *, char *)); 2783extern bool xtextok __P((char *)); 2784extern int xunlink __P((char *)); 2785extern char *xuntextify __P((char *)); 2786 2787 2788#undef EXTERN 2789#endif /* ! _SENDMAIL_H */ 2790