dma.h

   1 /*
   2  * Copyright (c) 2008 The DragonFly Project.  All rights reserved.
   3  *
   4  * This code is derived from software contributed to The DragonFly Project
   5  * by Simon 'corecode' Schubert <corecode@fs.ei.tum.de> and
   6  * Matthias Schmidt <matthias@dragonflybsd.org>.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in
  16  *    the documentation and/or other materials provided with the
  17  *    distribution.
  18  * 3. Neither the name of The DragonFly Project nor the names of its
  19  *    contributors may be used to endorse or promote products derived
  20  *    from this software without specific, prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  23  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  24  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  25  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
  26  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  27  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
  28  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  29  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  30  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  31  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  32  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  33  * SUCH DAMAGE.
  34  *
  35  * $DragonFly: src/libexec/dma/dma.h,v 1.8 2008/09/30 17:47:21 swildner Exp $
  36  */
  37
  38 #ifndef DMA_H
  39 #define DMA_H
  40
  41 #include <openssl/ssl.h>
  42
  43 #include <sys/queue.h>
  44
  45 #ifndef __unused
  46 #ifdef __GNUC__
  47 #define __unused        __attribute__((unused))
  48 #else
  49 #define __unused
  50 #endif  /* __GNUC__ */
  51 #endif
  52
  53 #define VERSION "DragonFly Mail Agent"
  54
  55 #define BUF_SIZE        2048
  56 #define MIN_RETRY       300             /* 5 minutes */
  57 #define MAX_RETRY       (3*60*60)       /* retry at least every 3 hours */
  58 #define MAX_TIMEOUT     (5*24*60*60)    /* give up after 5 days */
  59 #ifndef PATH_MAX
  60 #define PATH_MAX        1024            /* Max path len */
  61 #endif
  62 #define SMTP_PORT       25              /* Default SMTP port */
  63 #define CON_TIMEOUT     120             /* Connection timeout */
  64
  65 #define VIRTUAL         0x001           /* Support for address rewrites */
  66 #define STARTTLS        0x002           /* StartTLS support */
  67 #define SECURETRANS     0x004           /* SSL/TLS in general */
  68 #define NOSSL           0x008           /* Do not use SSL */
  69 #define DEFER           0x010           /* Defer mails */
  70 #define INSECURE        0x020           /* Allow plain login w/o encryption */
  71 #define FULLBOUNCE      0x040           /* Bounce the full message */
  72
  73 #ifndef CONF_PATH
  74 #define CONF_PATH       "/etc/dma/dma.conf"     /* Default path to dma.conf */
  75 #endif
  76
  77 struct stritem {
  78         SLIST_ENTRY(stritem) next;
  79         char *str;
  80 };
  81 SLIST_HEAD(strlist, stritem);
  82
  83 struct alias {
  84         LIST_ENTRY(alias) next;
  85         char *alias;
  86         struct strlist dests;
  87 };
  88 LIST_HEAD(aliases, alias);
  89
  90 struct qitem {
  91         LIST_ENTRY(qitem) next;
  92         const char *sender;
  93         char *addr;
  94         char *queuefn;
  95         char *mailfn;
  96         char *queueid;
  97         FILE *mailf;
  98         int queuefd;
  99         off_t hdrlen;
 100         int remote;
 101         int locked;
 102 };
 103 LIST_HEAD(queueh, qitem);
 104
 105 struct queue {
 106         struct queueh queue;
 107         uintmax_t id;
 108         int mailfd;
 109         char *tmpf;
 110 };
 111
 112 struct config {
 113         char *smarthost;
 114         int port;
 115         char *aliases;
 116         char *spooldir;
 117         char *virtualpath;
 118         char *authpath;
 119         char *certfile;
 120         int features;
 121         SSL *ssl;
 122         char *mailname;
 123         char *mailnamefile;
 124 };
 125
 126
 127 struct virtuser {
 128         SLIST_ENTRY(virtuser) next;
 129         char *login;
 130         char *address;
 131 };
 132 SLIST_HEAD(virtusers, virtuser);
 133
 134 struct authuser {
 135         SLIST_ENTRY(authuser) next;
 136         char *login;
 137         char *password;
 138         char *host;
 139 };
 140 SLIST_HEAD(authusers, authuser);
 141
 142
 143 /* global variables */
 144 extern struct aliases aliases;
 145 extern struct config *config;
 146 extern struct strlist tmpfs;
 147 extern struct virtusers virtusers;
 148 extern struct authusers authusers;
 149
 150 extern char neterr[BUF_SIZE];
 151
 152 /* aliases_parse.y */
 153 int yyparse(void);
 154 extern FILE *yyin;
 155
 156 /* conf.c */
 157 void trim_line(char *);
 158 int parse_conf(const char *);
 159 int parse_virtuser(const char *);
 160 int parse_authfile(const char *);
 161
 162 /* crypto.c */
 163 void hmac_md5(unsigned char *, int, unsigned char *, int, caddr_t);
 164 int smtp_auth_md5(struct qitem *, int, char *, char *);
 165 int smtp_init_crypto(struct qitem *, int, int);
 166
 167 /* net.c */
 168 char *ssl_errstr(void);
 169 int read_remote(int, int, char *);
 170 ssize_t send_remote_command(int, const char*, ...);
 171 int deliver_remote(struct qitem *, const char **);
 172
 173 /* base64.c */
 174 int base64_encode(const void *, int, char **);
 175 int base64_decode(const char *, void *);
 176
 177 /* dma.c */
 178 int open_locked(const char *, int, ...);
 179 int add_recp(struct queue *, const char *, const char *, int);
 180 const char *hostname(void);
 181
 182 /* spool.c */
 183 int newspoolf(struct queue *, const char *);
 184 int linkspool(struct queue *);
 185 void load_queue(struct queue *, int);
 186 void delqueue(struct qitem *);
 187
 188 /* local.c */
 189 int deliver_local(struct qitem *, const char **errmsg);
 190 #endif