2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
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>.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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
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.
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
39 #include <sys/types.h>
40 #include <sys/queue.h>
41 #include <sys/socket.h>
42 #include <arpa/nameser.h>
43 #include <arpa/inet.h>
44 #include <openssl/ssl.h>
47 #define VERSION "DragonFly Mail Agent " DMA_VERSION
50 #define ERRMSG_SIZE 200
51 #define USERNAME_SIZE 50
52 #define MIN_RETRY 300 /* 5 minutes */
53 #define MAX_RETRY (3*60*60) /* retry at least every 3 hours */
54 #define MAX_TIMEOUT (5*24*60*60) /* give up after 5 days */
55 #define SLEEP_TIMEOUT 30 /* check for queue flush every 30 seconds */
57 #define PATH_MAX 1024 /* Max path len */
59 #define SMTP_PORT 25 /* Default SMTP port */
60 #define CON_TIMEOUT (5*60) /* Connection timeout per RFC5321 */
62 #define STARTTLS 0x002 /* StartTLS support */
63 #define SECURETRANS 0x004 /* SSL/TLS in general */
64 #define NOSSL 0x008 /* Do not use SSL */
65 #define DEFER 0x010 /* Defer mails */
66 #define INSECURE 0x020 /* Allow plain login w/o encryption */
67 #define FULLBOUNCE 0x040 /* Bounce the full message */
68 #define TLS_OPP 0x080 /* Opportunistic STARTTLS */
69 #define NULLCLIENT 0x100 /* Nullclient support */
72 #error Please define CONF_PATH
76 #error Please define LIBEXEC_PATH
79 #define SPOOL_FLUSHFILE "flush"
82 #define DMA_ROOT_USER "mail"
85 #define DMA_GROUP "mail"
94 SLIST_ENTRY(stritem) next;
97 SLIST_HEAD(strlist, stritem);
100 LIST_ENTRY(alias) next;
102 struct strlist dests;
104 LIST_HEAD(aliases, alias);
107 LIST_ENTRY(qitem) next;
117 LIST_HEAD(queueh, qitem);
128 const char *smarthost;
131 const char *spooldir;
132 const char *authpath;
133 const char *certfile;
135 const char *mailname;
136 const char *masquerade_host;
137 const char *masquerade_user;
139 /* XXX does not belong into config */
145 SLIST_ENTRY(authuser) next;
150 SLIST_HEAD(authusers, authuser);
153 struct mx_hostentry {
155 char addr[INET6_ADDRSTRLEN];
158 struct sockaddr_storage sa;
162 /* global variables */
163 extern struct aliases aliases;
164 extern struct config config;
165 extern struct strlist tmpfs;
166 extern struct authusers authusers;
167 extern char username[USERNAME_SIZE];
168 extern uid_t useruid;
169 extern const char *logident_base;
171 extern char neterr[ERRMSG_SIZE];
172 extern char errmsg[ERRMSG_SIZE];
174 /* aliases_parse.y */
179 void trim_line(char *);
180 void parse_conf(const char *);
181 void parse_authfile(const char *);
184 void hmac_md5(unsigned char *, int, unsigned char *, int, unsigned char *);
185 int smtp_auth_md5(int, char *, char *);
186 int smtp_init_crypto(int, int);
189 int dns_get_mx_list(const char *, int, struct mx_hostentry **, int);
192 char *ssl_errstr(void);
193 int read_remote(int, int, char *);
194 ssize_t send_remote_command(int, const char*, ...) __attribute__((__nonnull__(2), __format__ (__printf__, 2, 3)));
195 int deliver_remote(struct qitem *);
198 int base64_encode(const void *, int, char **);
199 int base64_decode(const char *, void *);
202 #define EXPAND_ADDR 1
203 #define EXPAND_WILDCARD 2
204 int add_recp(struct queue *, const char *, int);
205 void run_queue(struct queue *);
208 int newspoolf(struct queue *);
209 int linkspool(struct queue *);
210 int load_queue(struct queue *);
211 void delqueue(struct qitem *);
212 int acquirespool(struct qitem *);
213 void dropspool(struct queue *, struct qitem *);
214 int flushqueue_since(unsigned int);
215 int flushqueue_signal(void);
218 int deliver_local(struct qitem *);
221 void bounce(struct qitem *, const char *);
222 int readmail(struct queue *, int, int);
225 const char *hostname(void);
226 void setlogident(const char *, ...) __attribute__((__format__ (__printf__, 1, 2)));
227 void errlog(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3)));
228 void errlogx(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3)));
229 void set_username(void);
231 int do_timeout(int, int);
232 int open_locked(const char *, int, ...);
233 char *rfc822date(void);
234 int strprefixcmp(const char *, const char *);
235 void init_random(void);