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  * $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 #ifdef HAVE_CRYPTO
  42 #include <openssl/ssl.h>
  43 #endif /* HAVE_CRYPTO */
  44
  45 #include <sys/queue.h>
  46 #include <stdint.h>
  47 #include <stdio.h>
  48
  49
  50 #define VERSION "DragonFly Mail Agent"
  51
  52 #define BUF_SIZE        2048
  53 #define MIN_RETRY       300             /* 5 minutes */
  54 #define MAX_RETRY       (3*60*60)       /* retry at least every 3 hours */
  55 #define MAX_TIMEOUT     (5*24*60*60)    /* give up after 5 days */
  56 #define PATH_MAX        1024            /* Max path len */
  57 #define SMTP_PORT       25              /* Default SMTP port */
  58 #define CON_TIMEOUT     120             /* Connection timeout */
  59
  60 #define VIRTUAL         0x001           /* Support for address rewrites */
  61 #define STARTTLS        0x002           /* StartTLS support */
  62 #define SECURETRANS     0x004           /* SSL/TLS in general */
  63 #define NOSSL           0x008           /* Do not use SSL */
  64 #define DEFER           0x010           /* Defer mails */
  65 #define INSECURE        0x020           /* Allow plain login w/o encryption */
  66
  67 #define ENDOFDOTFORWARD 0x01            /* no ~/.forward for this user */
  68 #define ISPIPE          0x02            /* there is a pipe line in the .forward */
  69 #define ISMAILBOX       0x04            /* there is a mailbox line in the .forward */
  70
  71 #define ENDOFMAIL       0x01            /* on deliver_local() side everythings ok */
  72 #define GOTOCHOP        0x02            /* there was an problem with the queue-file, reset file seek */
  73
  74 #define SEM_DF          0               /* semaphore for exclusive dotforwardhandler communication */
  75 #define SEM_WL          1               /* semaphore for exclusive write_to_local_user communication */
  76 #define SEM_SIGHUP      2               /* semaphore for signalling that the processes can terminate */
  77
  78 #define CONF_PATH       "/etc/dma/dma.conf"     /* Default path to dma.conf */
  79
  80 struct stritem {
  81         SLIST_ENTRY(stritem) next;
  82         char *str;
  83 };
  84 SLIST_HEAD(strlist, stritem);
  85
  86 struct alias {
  87         LIST_ENTRY(alias) next;
  88         char *alias;
  89         struct strlist dests;
  90 };
  91 LIST_HEAD(aliases, alias);
  92
  93 struct qitem {
  94         LIST_ENTRY(qitem) next;
  95         const char *sender;
  96         char *addr;
  97         char *pipeuser;
  98         char *queuefn;
  99         char *queueid;
 100         FILE *queuef;
 101         off_t hdrlen;
 102         int local;
 103 };
 104 LIST_HEAD(queueh, qitem);
 105
 106 struct queue {
 107         struct queueh queue;
 108         uintmax_t id;
 109         int mailfd;
 110         char *tmpf;
 111 };
 112
 113 struct config {
 114         char *smarthost;
 115         int port;
 116         char *aliases;
 117         char *spooldir;
 118         char *virtualpath;
 119         char *authpath;
 120         char *certfile;
 121         int features;
 122 #ifdef HAVE_CRYPTO
 123         SSL *ssl;
 124 #endif /* HAVE_CRYPTO */
 125 };
 126
 127
 128 struct virtuser {
 129         SLIST_ENTRY(virtuser) next;
 130         char *login;
 131         char *address;
 132 };
 133 SLIST_HEAD(virtusers, virtuser);
 134
 135 struct authuser {
 136         SLIST_ENTRY(authuser) next;
 137         char *login;
 138         char *password;
 139         char *host;
 140 };
 141 SLIST_HEAD(authusers, authuser);
 142
 143 extern struct aliases aliases;
 144
 145 /* aliases_parse.y */
 146 extern int yyparse(void);
 147 extern FILE *yyin;
 148
 149 /* conf.c */
 150 extern void trim_line(char *);
 151 extern int parse_conf(const char *, struct config *);
 152 extern int parse_virtuser(const char *);
 153 extern int parse_authfile(const char *);
 154
 155 /* crypto.c */
 156 #ifdef HAVE_CRYPTO
 157 extern void hmac_md5(unsigned char *, int, unsigned char *, int, caddr_t);
 158 extern int smtp_auth_md5(struct qitem *, int, char *, char *);
 159 extern int smtp_init_crypto(struct qitem *, int, int);
 160 #endif /* HAVE_CRYPTO */
 161
 162 /* net.c */
 163 extern int read_remote(int, int, char *);
 164 extern ssize_t send_remote_command(int, const char*, ...);
 165 extern int deliver_remote(struct qitem *, const char **, struct queue **);
 166
 167 /* base64.c */
 168 extern int base64_encode(const void *, int, char **);
 169 extern int base64_decode(const char *, void *);
 170
 171 /* dma.c */
 172 extern char * hostname(void);
 173 #endif