libexec/dma/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
  36 #ifndef DMA_H
  37 #define DMA_H
  38
  39 #include <openssl/ssl.h>
  40
  41 #include <sys/queue.h>
  42
  43 #ifndef __unused
  44 #ifdef __GNUC__
  45 #define __unused        __attribute__((unused))
  46 #else
  47 #define __unused
  48 #endif  /* __GNUC__ */
  49 #endif
  50
  51 #define VERSION "DragonFly Mail Agent"
  52
  53 #define BUF_SIZE        2048
  54 #define MIN_RETRY       300             /* 5 minutes */
  55 #define MAX_RETRY       (3*60*60)       /* retry at least every 3 hours */
  56 #define MAX_TIMEOUT     (5*24*60*60)    /* give up after 5 days */
  57 #ifndef PATH_MAX
  58 #define PATH_MAX        1024            /* Max path len */
  59 #endif
  60 #define SMTP_PORT       25              /* Default SMTP port */
  61 #define CON_TIMEOUT     120             /* Connection timeout */
  62
  63 #define VIRTUAL         0x001           /* Support for address rewrites */
  64 #define STARTTLS        0x002           /* StartTLS support */
  65 #define SECURETRANS     0x004           /* SSL/TLS in general */
  66 #define NOSSL           0x008           /* Do not use SSL */
  67 #define DEFER           0x010           /* Defer mails */
  68 #define INSECURE        0x020           /* Allow plain login w/o encryption */
  69 #define FULLBOUNCE      0x040           /* Bounce the full message */
  70
  71 #ifndef CONF_PATH
  72 #define CONF_PATH       "/etc/dma/dma.conf"     /* Default path to dma.conf */
  73 #endif
  74
  75 struct stritem {
  76         SLIST_ENTRY(stritem) next;
  77         char *str;
  78 };
  79 SLIST_HEAD(strlist, stritem);
  80
  81 struct alias {
  82         LIST_ENTRY(alias) next;
  83         char *alias;
  84         struct strlist dests;
  85 };
  86 LIST_HEAD(aliases, alias);
  87
  88 struct qitem {
  89         LIST_ENTRY(qitem) next;
  90         const char *sender;
  91         char *addr;
  92         char *queuefn;
  93         char *mailfn;
  94         char *queueid;
  95         FILE *queuef;
  96         FILE *mailf;
  97         off_t hdrlen;
  98         int remote;
  99 };
 100 LIST_HEAD(queueh, qitem);
 101
 102 struct queue {
 103         struct queueh queue;
 104         char *id;
 105         FILE *mailf;
 106         char *tmpf;
 107         const char *sender;
 108 };
 109
 110 struct config {
 111         char *smarthost;
 112         int port;
 113         char *aliases;
 114         char *spooldir;
 115         char *virtualpath;
 116         char *authpath;
 117         char *certfile;
 118         int features;
 119         SSL *ssl;
 120         char *mailname;
 121         char *mailnamefile;
 122 };
 123
 124
 125 struct virtuser {
 126         SLIST_ENTRY(virtuser) next;
 127         char *login;
 128         char *address;
 129 };
 130 SLIST_HEAD(virtusers, virtuser);
 131
 132 struct authuser {
 133         SLIST_ENTRY(authuser) next;
 134         char *login;
 135         char *password;
 136         char *host;
 137 };
 138 SLIST_HEAD(authusers, authuser);
 139
 140
 141 /* global variables */
 142 extern struct aliases aliases;
 143 extern struct config *config;
 144 extern struct strlist tmpfs;
 145 extern struct virtusers virtusers;
 146 extern struct authusers authusers;
 147 extern const char *username;
 148 extern const char *logident_base;
 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(int, char *, char *);
 165 int smtp_init_crypto(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 add_recp(struct queue *, const char *, int);
 179 void run_queue(struct queue *);
 180
 181 /* spool.c */
 182 int newspoolf(struct queue *);
 183 int linkspool(struct queue *);
 184 int load_queue(struct queue *);
 185 void delqueue(struct qitem *);
 186 int aquirespool(struct qitem *);
 187 void dropspool(struct queue *, struct qitem *);
 188
 189 /* local.c */
 190 int deliver_local(struct qitem *, const char **errmsg);
 191
 192 /* mail.c */
 193 void bounce(struct qitem *, const char *);
 194 int readmail(struct queue *, int);
 195
 196 /* util.c */
 197 const char *hostname(void);
 198 void setlogident(const char *, ...);
 199 void errlog(int, const char *, ...);
 200 void errlogx(int, const char *, ...);
 201 void set_username(void);
 202 void deltmp(void);
 203 int open_locked(const char *, int, ...);
 204 char *rfc822date(void);
 205 int strprefixcmp(const char *, const char *);
 206
 207 #endif