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86e4d161 MS |
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. | |
86e4d161 MS |
34 | */ |
35 | ||
36 | #ifndef DMA_H | |
37 | #define DMA_H | |
38 | ||
8cbdbd34 | 39 | #include <sys/types.h> |
86e4d161 | 40 | #include <sys/queue.h> |
8cbdbd34 SS |
41 | #include <sys/socket.h> |
42 | #include <arpa/nameser.h> | |
43 | #include <arpa/inet.h> | |
44 | #include <openssl/ssl.h> | |
45 | #include <netdb.h> | |
86e4d161 | 46 | |
d062346c | 47 | #define VERSION "DragonFly Mail Agent " DMA_VERSION |
86e4d161 MS |
48 | |
49 | #define BUF_SIZE 2048 | |
249ee966 SS |
50 | #define ERRMSG_SIZE 200 |
51 | #define USERNAME_SIZE 50 | |
86e4d161 MS |
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 */ | |
3686aecc | 55 | #define SLEEP_TIMEOUT 30 /* check for queue flush every 30 seconds */ |
dd475b5e | 56 | #ifndef PATH_MAX |
86e4d161 | 57 | #define PATH_MAX 1024 /* Max path len */ |
dd475b5e | 58 | #endif |
1b00f90e | 59 | #define SMTP_PORT 25 /* Default SMTP port */ |
144941d9 | 60 | #define CON_TIMEOUT (5*60) /* Connection timeout per RFC5321 */ |
86e4d161 | 61 | |
1b00f90e MS |
62 | #define STARTTLS 0x002 /* StartTLS support */ |
63 | #define SECURETRANS 0x004 /* SSL/TLS in general */ | |
50c8e68a | 64 | #define NOSSL 0x008 /* Do not use SSL */ |
1b00f90e MS |
65 | #define DEFER 0x010 /* Defer mails */ |
66 | #define INSECURE 0x020 /* Allow plain login w/o encryption */ | |
8ee63931 | 67 | #define FULLBOUNCE 0x040 /* Bounce the full message */ |
4dea15f5 | 68 | #define TLS_OPP 0x080 /* Opportunistic STARTTLS */ |
1b00f90e | 69 | |
fd1de51a | 70 | #ifndef CONF_PATH |
d84c3daa | 71 | #error Please define CONF_PATH |
fd1de51a | 72 | #endif |
86e4d161 | 73 | |
c1ebccb4 SS |
74 | #ifndef LIBEXEC_PATH |
75 | #error Please define LIBEXEC_PATH | |
76 | #endif | |
77 | ||
3686aecc SS |
78 | #define SPOOL_FLUSHFILE "flush" |
79 | ||
296dd000 | 80 | #ifndef DMA_ROOT_USER |
c1ebccb4 | 81 | #define DMA_ROOT_USER "mail" |
296dd000 EM |
82 | #endif |
83 | #ifndef DMA_GROUP | |
c1ebccb4 | 84 | #define DMA_GROUP "mail" |
296dd000 | 85 | #endif |
c1ebccb4 | 86 | |
fedbe711 SS |
87 | #ifndef MBOX_STRICT |
88 | #define MBOX_STRICT 0 | |
89 | #endif | |
90 | ||
c1ebccb4 | 91 | |
86e4d161 MS |
92 | struct stritem { |
93 | SLIST_ENTRY(stritem) next; | |
94 | char *str; | |
95 | }; | |
96 | SLIST_HEAD(strlist, stritem); | |
97 | ||
98 | struct alias { | |
99 | LIST_ENTRY(alias) next; | |
100 | char *alias; | |
101 | struct strlist dests; | |
102 | }; | |
103 | LIST_HEAD(aliases, alias); | |
104 | ||
105 | struct qitem { | |
106 | LIST_ENTRY(qitem) next; | |
107 | const char *sender; | |
108 | char *addr; | |
109 | char *queuefn; | |
fd1de51a | 110 | char *mailfn; |
86e4d161 | 111 | char *queueid; |
87bdbc01 | 112 | FILE *queuef; |
fd1de51a | 113 | FILE *mailf; |
e0a95d28 | 114 | int remote; |
86e4d161 MS |
115 | }; |
116 | LIST_HEAD(queueh, qitem); | |
117 | ||
118 | struct queue { | |
119 | struct queueh queue; | |
4d5af2b0 | 120 | char *id; |
87bdbc01 | 121 | FILE *mailf; |
86e4d161 | 122 | char *tmpf; |
057afad5 | 123 | const char *sender; |
86e4d161 MS |
124 | }; |
125 | ||
126 | struct config { | |
a0c4afa6 | 127 | const char *smarthost; |
86e4d161 | 128 | int port; |
a0c4afa6 SS |
129 | const char *aliases; |
130 | const char *spooldir; | |
a0c4afa6 SS |
131 | const char *authpath; |
132 | const char *certfile; | |
86e4d161 | 133 | int features; |
a0c4afa6 | 134 | const char *mailname; |
5bc72de8 SS |
135 | const char *masquerade_host; |
136 | const char *masquerade_user; | |
a0c4afa6 SS |
137 | |
138 | /* XXX does not belong into config */ | |
86e4d161 | 139 | SSL *ssl; |
86e4d161 MS |
140 | }; |
141 | ||
142 | ||
86e4d161 MS |
143 | struct authuser { |
144 | SLIST_ENTRY(authuser) next; | |
145 | char *login; | |
146 | char *password; | |
147 | char *host; | |
148 | }; | |
149 | SLIST_HEAD(authusers, authuser); | |
150 | ||
fd1de51a | 151 | |
8cbdbd34 SS |
152 | struct mx_hostentry { |
153 | char host[MAXDNAME]; | |
154 | char addr[INET6_ADDRSTRLEN]; | |
155 | int pref; | |
156 | struct addrinfo ai; | |
157 | struct sockaddr_storage sa; | |
158 | }; | |
159 | ||
160 | ||
fd1de51a | 161 | /* global variables */ |
86e4d161 | 162 | extern struct aliases aliases; |
a0c4afa6 | 163 | extern struct config config; |
fd1de51a | 164 | extern struct strlist tmpfs; |
fd1de51a | 165 | extern struct authusers authusers; |
249ee966 | 166 | extern char username[USERNAME_SIZE]; |
75fdf182 | 167 | extern uid_t useruid; |
de13a881 | 168 | extern const char *logident_base; |
86e4d161 | 169 | |
249ee966 SS |
170 | extern char neterr[ERRMSG_SIZE]; |
171 | extern char errmsg[ERRMSG_SIZE]; | |
7a73c463 | 172 | |
86e4d161 | 173 | /* aliases_parse.y */ |
fd1de51a | 174 | int yyparse(void); |
86e4d161 MS |
175 | extern FILE *yyin; |
176 | ||
177 | /* conf.c */ | |
fd1de51a | 178 | void trim_line(char *); |
a0c4afa6 | 179 | void parse_conf(const char *); |
a0c4afa6 | 180 | void parse_authfile(const char *); |
86e4d161 MS |
181 | |
182 | /* crypto.c */ | |
9b921550 | 183 | void hmac_md5(unsigned char *, int, unsigned char *, int, unsigned char *); |
4d5af2b0 SS |
184 | int smtp_auth_md5(int, char *, char *); |
185 | int smtp_init_crypto(int, int); | |
86e4d161 | 186 | |
8cbdbd34 SS |
187 | /* dns.c */ |
188 | int dns_get_mx_list(const char *, int, struct mx_hostentry **, int); | |
189 | ||
86e4d161 | 190 | /* net.c */ |
fd1de51a SS |
191 | char *ssl_errstr(void); |
192 | int read_remote(int, int, char *); | |
3aef8ec9 | 193 | ssize_t send_remote_command(int, const char*, ...) __attribute__((__nonnull__(2), __format__ (__printf__, 2, 3))); |
249ee966 | 194 | int deliver_remote(struct qitem *); |
86e4d161 MS |
195 | |
196 | /* base64.c */ | |
fd1de51a SS |
197 | int base64_encode(const void *, int, char **); |
198 | int base64_decode(const char *, void *); | |
86e4d161 MS |
199 | |
200 | /* dma.c */ | |
a803c7a6 SS |
201 | #define EXPAND_ADDR 1 |
202 | #define EXPAND_WILDCARD 2 | |
057afad5 | 203 | int add_recp(struct queue *, const char *, int); |
28be0b96 | 204 | void run_queue(struct queue *); |
fd1de51a SS |
205 | |
206 | /* spool.c */ | |
057afad5 SS |
207 | int newspoolf(struct queue *); |
208 | int linkspool(struct queue *); | |
de13a881 | 209 | int load_queue(struct queue *); |
fd1de51a | 210 | void delqueue(struct qitem *); |
9aec6ad8 | 211 | int acquirespool(struct qitem *); |
87bdbc01 | 212 | void dropspool(struct queue *, struct qitem *); |
3686aecc SS |
213 | int flushqueue_since(unsigned int); |
214 | int flushqueue_signal(void); | |
fd1de51a SS |
215 | |
216 | /* local.c */ | |
249ee966 | 217 | int deliver_local(struct qitem *); |
de13a881 | 218 | |
28be0b96 SS |
219 | /* mail.c */ |
220 | void bounce(struct qitem *, const char *); | |
f734c0ae | 221 | int readmail(struct queue *, int, int); |
28be0b96 | 222 | |
de13a881 SS |
223 | /* util.c */ |
224 | const char *hostname(void); | |
3aef8ec9 SS |
225 | void setlogident(const char *, ...) __attribute__((__format__ (__printf__, 1, 2))); |
226 | void errlog(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3))); | |
227 | void errlogx(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3))); | |
de13a881 SS |
228 | void set_username(void); |
229 | void deltmp(void); | |
a71122e7 | 230 | int do_timeout(int, int); |
de13a881 SS |
231 | int open_locked(const char *, int, ...); |
232 | char *rfc822date(void); | |
233 | int strprefixcmp(const char *, const char *); | |
ee613428 | 234 | void init_random(void); |
de13a881 | 235 | |
86e4d161 | 236 | #endif |