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 int remote; 98 }; 99 LIST_HEAD(queueh, qitem); 100 101 struct queue { 102 struct queueh queue; 103 char *id; 104 FILE *mailf; 105 char *tmpf; 106 const char *sender; 107 }; 108 109 struct config { 110 char *smarthost; 111 int port; 112 char *aliases; 113 char *spooldir; 114 char *virtualpath; 115 char *authpath; 116 char *certfile; 117 int features; 118 SSL *ssl; 119 char *mailname; 120 char *mailnamefile; 121 }; 122 123 124 struct virtuser { 125 SLIST_ENTRY(virtuser) next; 126 char *login; 127 char *address; 128 }; 129 SLIST_HEAD(virtusers, virtuser); 130 131 struct authuser { 132 SLIST_ENTRY(authuser) next; 133 char *login; 134 char *password; 135 char *host; 136 }; 137 SLIST_HEAD(authusers, authuser); 138 139 140 /* global variables */ 141 extern struct aliases aliases; 142 extern struct config *config; 143 extern struct strlist tmpfs; 144 extern struct virtusers virtusers; 145 extern struct authusers authusers; 146 extern const char *username; 147 extern const char *logident_base; 148 149 extern char neterr[BUF_SIZE]; 150 151 /* aliases_parse.y */ 152 int yyparse(void); 153 extern FILE *yyin; 154 155 /* conf.c */ 156 void trim_line(char *); 157 int parse_conf(const char *); 158 int parse_virtuser(const char *); 159 int parse_authfile(const char *); 160 161 /* crypto.c */ 162 void hmac_md5(unsigned char *, int, unsigned char *, int, caddr_t); 163 int smtp_auth_md5(int, char *, char *); 164 int smtp_init_crypto(int, int); 165 166 /* net.c */ 167 char *ssl_errstr(void); 168 int read_remote(int, int, char *); 169 ssize_t send_remote_command(int, const char*, ...); 170 int deliver_remote(struct qitem *, const char **); 171 172 /* base64.c */ 173 int base64_encode(const void *, int, char **); 174 int base64_decode(const char *, void *); 175 176 /* dma.c */ 177 int add_recp(struct queue *, const char *, int); 178 void run_queue(struct queue *); 179 180 /* spool.c */ 181 int newspoolf(struct queue *); 182 int linkspool(struct queue *); 183 int load_queue(struct queue *); 184 void delqueue(struct qitem *); 185 int acquirespool(struct qitem *); 186 void dropspool(struct queue *, struct qitem *); 187 188 /* local.c */ 189 int deliver_local(struct qitem *, const char **errmsg); 190 191 /* mail.c */ 192 void bounce(struct qitem *, const char *); 193 int readmail(struct queue *, int, int); 194 195 /* util.c */ 196 const char *hostname(void); 197 void setlogident(const char *, ...); 198 void errlog(int, const char *, ...); 199 void errlogx(int, const char *, ...); 200 void set_username(void); 201 void deltmp(void); 202 int open_locked(const char *, int, ...); 203 char *rfc822date(void); 204 int strprefixcmp(const char *, const char *); 205 206 #endif 207