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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 | ||
c1ebccb4 SS |
80 | #define DMA_ROOT_USER "mail" |
81 | #define DMA_GROUP "mail" | |
82 | ||
fedbe711 SS |
83 | #ifndef MBOX_STRICT |
84 | #define MBOX_STRICT 0 | |
85 | #endif | |
86 | ||
c1ebccb4 | 87 | |
86e4d161 MS |
88 | struct stritem { |
89 | SLIST_ENTRY(stritem) next; | |
90 | char *str; | |
91 | }; | |
92 | SLIST_HEAD(strlist, stritem); | |
93 | ||
94 | struct alias { | |
95 | LIST_ENTRY(alias) next; | |
96 | char *alias; | |
97 | struct strlist dests; | |
98 | }; | |
99 | LIST_HEAD(aliases, alias); | |
100 | ||
101 | struct qitem { | |
102 | LIST_ENTRY(qitem) next; | |
103 | const char *sender; | |
104 | char *addr; | |
105 | char *queuefn; | |
fd1de51a | 106 | char *mailfn; |
86e4d161 | 107 | char *queueid; |
87bdbc01 | 108 | FILE *queuef; |
fd1de51a | 109 | FILE *mailf; |
e0a95d28 | 110 | int remote; |
86e4d161 MS |
111 | }; |
112 | LIST_HEAD(queueh, qitem); | |
113 | ||
114 | struct queue { | |
115 | struct queueh queue; | |
4d5af2b0 | 116 | char *id; |
87bdbc01 | 117 | FILE *mailf; |
86e4d161 | 118 | char *tmpf; |
057afad5 | 119 | const char *sender; |
86e4d161 MS |
120 | }; |
121 | ||
122 | struct config { | |
a0c4afa6 | 123 | const char *smarthost; |
86e4d161 | 124 | int port; |
a0c4afa6 SS |
125 | const char *aliases; |
126 | const char *spooldir; | |
a0c4afa6 SS |
127 | const char *authpath; |
128 | const char *certfile; | |
86e4d161 | 129 | int features; |
a0c4afa6 | 130 | const char *mailname; |
5bc72de8 SS |
131 | const char *masquerade_host; |
132 | const char *masquerade_user; | |
a0c4afa6 SS |
133 | |
134 | /* XXX does not belong into config */ | |
86e4d161 | 135 | SSL *ssl; |
86e4d161 MS |
136 | }; |
137 | ||
138 | ||
86e4d161 MS |
139 | struct authuser { |
140 | SLIST_ENTRY(authuser) next; | |
141 | char *login; | |
142 | char *password; | |
143 | char *host; | |
144 | }; | |
145 | SLIST_HEAD(authusers, authuser); | |
146 | ||
fd1de51a | 147 | |
8cbdbd34 SS |
148 | struct mx_hostentry { |
149 | char host[MAXDNAME]; | |
150 | char addr[INET6_ADDRSTRLEN]; | |
151 | int pref; | |
152 | struct addrinfo ai; | |
153 | struct sockaddr_storage sa; | |
154 | }; | |
155 | ||
156 | ||
fd1de51a | 157 | /* global variables */ |
86e4d161 | 158 | extern struct aliases aliases; |
a0c4afa6 | 159 | extern struct config config; |
fd1de51a | 160 | extern struct strlist tmpfs; |
fd1de51a | 161 | extern struct authusers authusers; |
249ee966 | 162 | extern char username[USERNAME_SIZE]; |
75fdf182 | 163 | extern uid_t useruid; |
de13a881 | 164 | extern const char *logident_base; |
86e4d161 | 165 | |
249ee966 SS |
166 | extern char neterr[ERRMSG_SIZE]; |
167 | extern char errmsg[ERRMSG_SIZE]; | |
7a73c463 | 168 | |
86e4d161 | 169 | /* aliases_parse.y */ |
fd1de51a | 170 | int yyparse(void); |
86e4d161 MS |
171 | extern FILE *yyin; |
172 | ||
173 | /* conf.c */ | |
fd1de51a | 174 | void trim_line(char *); |
a0c4afa6 | 175 | void parse_conf(const char *); |
a0c4afa6 | 176 | void parse_authfile(const char *); |
86e4d161 MS |
177 | |
178 | /* crypto.c */ | |
9b921550 | 179 | void hmac_md5(unsigned char *, int, unsigned char *, int, unsigned char *); |
4d5af2b0 SS |
180 | int smtp_auth_md5(int, char *, char *); |
181 | int smtp_init_crypto(int, int); | |
86e4d161 | 182 | |
8cbdbd34 SS |
183 | /* dns.c */ |
184 | int dns_get_mx_list(const char *, int, struct mx_hostentry **, int); | |
185 | ||
86e4d161 | 186 | /* net.c */ |
fd1de51a SS |
187 | char *ssl_errstr(void); |
188 | int read_remote(int, int, char *); | |
3aef8ec9 | 189 | ssize_t send_remote_command(int, const char*, ...) __attribute__((__nonnull__(2), __format__ (__printf__, 2, 3))); |
249ee966 | 190 | int deliver_remote(struct qitem *); |
86e4d161 MS |
191 | |
192 | /* base64.c */ | |
fd1de51a SS |
193 | int base64_encode(const void *, int, char **); |
194 | int base64_decode(const char *, void *); | |
86e4d161 MS |
195 | |
196 | /* dma.c */ | |
a803c7a6 SS |
197 | #define EXPAND_ADDR 1 |
198 | #define EXPAND_WILDCARD 2 | |
057afad5 | 199 | int add_recp(struct queue *, const char *, int); |
28be0b96 | 200 | void run_queue(struct queue *); |
fd1de51a SS |
201 | |
202 | /* spool.c */ | |
057afad5 SS |
203 | int newspoolf(struct queue *); |
204 | int linkspool(struct queue *); | |
de13a881 | 205 | int load_queue(struct queue *); |
fd1de51a | 206 | void delqueue(struct qitem *); |
9aec6ad8 | 207 | int acquirespool(struct qitem *); |
87bdbc01 | 208 | void dropspool(struct queue *, struct qitem *); |
3686aecc SS |
209 | int flushqueue_since(unsigned int); |
210 | int flushqueue_signal(void); | |
fd1de51a SS |
211 | |
212 | /* local.c */ | |
249ee966 | 213 | int deliver_local(struct qitem *); |
de13a881 | 214 | |
28be0b96 SS |
215 | /* mail.c */ |
216 | void bounce(struct qitem *, const char *); | |
f734c0ae | 217 | int readmail(struct queue *, int, int); |
28be0b96 | 218 | |
de13a881 SS |
219 | /* util.c */ |
220 | const char *hostname(void); | |
3aef8ec9 SS |
221 | void setlogident(const char *, ...) __attribute__((__format__ (__printf__, 1, 2))); |
222 | void errlog(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3))); | |
223 | void errlogx(int, const char *, ...) __attribute__((__format__ (__printf__, 2, 3))); | |
de13a881 SS |
224 | void set_username(void); |
225 | void deltmp(void); | |
a71122e7 | 226 | int do_timeout(int, int); |
de13a881 SS |
227 | int open_locked(const char *, int, ...); |
228 | char *rfc822date(void); | |
229 | int strprefixcmp(const char *, const char *); | |
ee613428 | 230 | void init_random(void); |
de13a881 | 231 | |
86e4d161 | 232 | #endif |