masqmail
view src/masqmail.h @ 426:d48d3622b64f
Updated AUTHORS and THANKS files.
| author | markus schnalke <meillo@marmaro.de> |
|---|---|
| date | Wed, 30 May 2012 11:49:40 +0200 |
| parents | 8fedb93e9b72 |
| children | 5593964ec779 |
line source
1 /*
2 ** MasqMail
3 ** Copyright (C) 1999-2001 Oliver Kurth
4 ** Copyright (C) 2010 markus schnalke <meillo@marmaro.de>
5 **
6 ** This program is free software; you can redistribute it and/or modify
7 ** it under the terms of the GNU General Public License as published by
8 ** the Free Software Foundation; either version 2 of the License, or
9 ** (at your option) any later version.
10 **
11 ** This program is distributed in the hope that it will be useful,
12 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ** GNU General Public License for more details.
15 **
16 ** You should have received a copy of the GNU General Public License
17 ** along with this program; if not, write to the Free Software
18 ** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20 #include <config.h>
22 #include <stdio.h>
23 #include <stdarg.h>
24 #include <errno.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <ctype.h>
28 #include <unistd.h>
29 #include <pwd.h>
30 #include <sys/types.h>
31 #include <sys/socket.h>
32 #include <netinet/in.h>
33 #include <time.h>
34 #include <sys/time.h>
35 #include <netinet/in.h>
36 #include <arpa/inet.h>
37 #include <netdb.h>
38 #include <syslog.h>
39 #include <signal.h>
40 #include <fcntl.h>
42 #include <glib.h>
44 #include "lookup.h"
46 typedef struct _interface {
47 gchar *address;
48 gint port;
49 } interface;
51 #define ADDR_FLAG_DELIVERED 0x01
52 #define ADDR_FLAG_DEFERED 0x02
53 #define ADDR_FLAG_FAILED 0x04
54 #define ADDR_FLAG_LAST_ROUTE 0x40
56 typedef struct _address {
57 gchar *address; /* full addr string: `markus <meillo@marmaro.de>' */
58 gchar *local_part; /* in this example: `meillo' */
59 gchar *domain; /* in this example: `marmaro.de' */
60 gint flags;
61 GList *children;
62 struct _address *parent;
63 } address;
65 #define addr_mark_delivered(addr) { addr->flags |= ADDR_FLAG_DELIVERED; }
66 #define addr_unmark_delivered(addr) { addr->flags &= ~ADDR_FLAG_DELIVERED; }
67 #define addr_is_delivered(addr) ((addr->flags & ADDR_FLAG_DELIVERED) != 0 )
69 #define addr_mark_defered(addr) { addr->flags |= ADDR_FLAG_DEFERED; }
70 #define addr_unmark_defered(addr) { addr->flags &= ~ADDR_FLAG_DEFERED; }
71 #define addr_is_defered(addr) ((addr->flags & ADDR_FLAG_DEFERED) != 0 )
73 #define addr_mark_failed(addr) { addr->flags |= ADDR_FLAG_FAILED; }
74 #define addr_unmark_failed(addr) { addr->flags &= ~ADDR_FLAG_FAILED; }
75 #define addr_is_failed(addr) ((addr->flags & ADDR_FLAG_FAILED) != 0 )
77 typedef struct _connect_route {
78 gchar *name;
79 gchar *filename;
81 gboolean is_perma;
82 gboolean last_route;
84 GList *allowed_senders;
85 GList *denied_senders;
86 GList *allowed_recipients;
87 GList *denied_recipients;
89 interface *mail_host;
90 gboolean connect_error_fail;
91 GList *resolve_list;
92 gchar *helo_name;
93 gboolean do_correct_helo;
94 gboolean instant_helo;
95 gboolean do_pipelining;
96 gchar *auth_name;
97 gchar *auth_login;
98 gchar *auth_secret;
99 gchar *wrapper;
101 gchar *set_h_from_domain;
102 gchar *set_h_reply_to_domain;
103 gchar *set_return_path_domain;
104 GList *map_h_from_addresses;
105 GList *map_h_reply_to_addresses;
106 GList *map_h_mail_followup_to_addresses;
107 GList *map_return_path_addresses;
108 gboolean expand_h_sender_domain;
109 gboolean expand_h_sender_address;
111 gchar *pipe;
112 gboolean pipe_fromline;
113 gboolean pipe_fromhack;
114 } connect_route;
116 typedef struct _masqmail_conf {
117 gint mail_uid;
118 gint mail_gid;
120 gint orig_uid;
121 gint orig_gid;
123 gboolean run_as_user;
125 gchar *mail_dir;
126 gchar *lock_dir;
127 gchar *spool_dir;
128 gchar *log_dir;
130 gint debug_level;
131 gboolean use_syslog;
133 gchar *host_name;
134 GList *local_hosts;
135 GList *local_addresses;
136 GList *not_local_addresses;
137 GList *listen_addresses;
139 /*
140 ** ANSI C defines unsigned long to be at least 32bit
141 ** i.e. ca. 4GB max; that should be enough.
142 */
143 gulong max_msg_size;
145 gboolean do_save_envelope_to;
147 gboolean defer_all;
148 gboolean do_relay;
150 gboolean do_queue;
152 gboolean do_verbose;
154 gchar *mbox_default;
155 GList *mbox_users;
156 GList *mda_users;
158 gchar *mda;
159 gboolean mda_fromline;
160 gboolean mda_fromhack;
162 gboolean pipe_fromline;
163 gboolean pipe_fromhack;
165 gchar *alias_file;
166 int (*localpartcmp) (const char *, const char *);
167 gchar *globalias_file;
169 GList *perma_routes;
170 GList *query_routes; /* list of pairs which point to lists */
172 gchar *online_query;
174 gchar *errmsg_file;
175 gchar *warnmsg_file;
176 GList *warn_intervals;
177 gint max_defer_time;
179 gchar *log_user;
180 } masqmail_conf;
182 extern masqmail_conf conf;
184 typedef struct _table_pair {
185 gchar *key;
186 gpointer *value;
187 } table_pair;
190 /* must match the contents of prot_names[] in accept.c */
191 typedef enum _prot_id {
192 PROT_LOCAL = 0,
193 PROT_SMTP,
194 PROT_ESMTP,
195 PROT_NUM
196 } prot_id;
198 extern gchar *prot_names[];
200 typedef enum _header_id {
201 HEAD_FROM = 0,
202 HEAD_SENDER,
203 HEAD_TO,
204 HEAD_CC,
205 HEAD_BCC,
206 HEAD_DATE,
207 HEAD_MESSAGE_ID,
208 HEAD_REPLY_TO,
209 HEAD_SUBJECT,
210 HEAD_RETURN_PATH,
211 HEAD_ENVELOPE_TO,
212 HEAD_RECEIVED,
213 HEAD_NUM_IDS,
214 HEAD_STATUS,
215 HEAD_UNKNOWN = HEAD_NUM_IDS,
216 HEAD_NONE = -1,
217 } header_id;
219 typedef struct _header_name {
220 gchar *header;
221 header_id id;
222 } header_name;
224 typedef struct _header {
225 header_id id;
226 gchar *header;
227 gchar *value;
228 } header;
231 typedef struct _message {
232 gchar *uid;
234 gchar *received_host;
235 prot_id received_prot;
236 gchar *ident;
237 gint transfer_id; /* for multiple messages per transfer */
239 address *return_path;
240 GList *rcpt_list;
241 GList *non_rcpt_list;
243 GList *hdr_list;
244 GList *data_list;
246 gint data_size;
247 time_t received_time;
248 time_t warned_time;
250 gchar *full_sender_name;
251 } message;
253 typedef struct _msg_out {
254 message *msg;
256 address *return_path;
257 GList *rcpt_list;
259 GList *hdr_list;
260 GList *xtra_hdr_list; /* rewritten headers */
261 } msg_out;
263 typedef struct _msgout_perhost {
264 gchar *host;
265 GList *msgout_list;
266 } msgout_perhost;
268 /* flags for accept() */
269 #define ACC_RCPT_FROM_HEAD 0x08 /* -t option, get rcpts from headers */
270 #define ACC_DOT_IGNORE 0x10 /* a dot on a line itself does not end the message (-oi option) */
271 #define ACC_MAIL_FROM_HEAD 0x40 /* get return path from header */
272 #define ACC_NODOT_RELAX 0x80 /* do not be picky if message ist not terminated by a dot on a line */
273 #define ACC_SAVE_ENVELOPE_TO 0x0100 /* save an existent Envelope-to header as X-Orig-Envelope-to */
275 #define DLVR_LOCAL 0x01
276 #define DLVR_ONLINE 0x02
277 #define DLVR_ALL (DLVR_LOCAL|DLVR_ONLINE)
279 /* transport flags */
280 #define MSGSTR_FROMLINE 0x01
281 #define MSGSTR_FROMHACK 0x02
283 typedef enum _accept_error {
284 AERR_OK = 0,
285 AERR_TIMEOUT,
286 AERR_EOF,
287 AERR_OVERFLOW,
288 AERR_SYNTAX,
289 AERR_NOSPOOL,
290 AERR_NORCPT,
291 AERR_SIZE, /* max msg size exeeded (SMTP SIZE) */
292 AERR_UNKNOWN
293 } accept_error;
295 #define BUF_LEN 1024
296 #define MAX_ADDRESS 256
297 #define MAX_DATALINE 4096
299 typedef enum _smtp_cmd_id {
300 SMTP_HELO = 0,
301 SMTP_EHLO,
302 SMTP_MAIL_FROM,
303 SMTP_RCPT_TO,
304 SMTP_DATA,
305 SMTP_QUIT,
306 SMTP_RSET,
307 SMTP_NOOP,
308 SMTP_HELP,
309 SMTP_NUM_IDS,
310 SMTP_EOF = -1,
311 SMTP_ERROR = -2,
312 } smtp_cmd_id;
314 typedef struct _smtp_cmd {
315 smtp_cmd_id id;
316 gchar *cmd;
317 } smtp_cmd;
319 typedef struct _smtp_connection {
320 gchar *remote_host;
322 prot_id prot;
323 gint next_id;
325 gboolean helo_seen;
326 gboolean from_seen;
327 gboolean rcpt_seen;
329 message *msg;
330 } smtp_connection;
332 /* alias.c*/
333 gboolean addr_is_local(address *addr);
334 GList *alias_expand(GList *alias_table, GList *rcpt_list, GList *non_rcpt_list,
335 int doglob);
337 /* child.c */
338 int child(const char *command);
340 /* conf.c */
341 void init_conf();
342 gboolean read_conf(gchar *filename);
343 connect_route *read_route(gchar *filename, gboolean is_perma);
344 GList *read_route_list(GList *rf_list, gboolean is_perma);
345 void destroy_route(connect_route *r);
346 void destroy_route_list(GList *list);
348 /* expand.c */
349 GList *var_table_rcpt(GList *var_table, address *rcpt);
350 GList *var_table_msg(GList *var_table, message *msg);
351 GList *var_table_conf(GList *var_table);
352 gint expand(GList *var_list, gchar *format, gchar *result, gint result_len);
354 /* message.c */
355 message *create_message(void);
356 void destroy_message(message *msg);
357 void destroy_msg_list(GList *msg_list);
358 void msg_free_data(message *msg);
359 gint msg_calc_size(message *msg, gboolean is_smtp);
361 msg_out *create_msg_out(message *msg);
362 msg_out *clone_msg_out(msg_out *msgout_orig);
363 void destroy_msg_out(msg_out *msgout);
364 void destroy_msg_out_list(GList *msgout_list);
366 /* address.c */
367 address *create_address(gchar *path, gboolean is_rfc821);
368 address *create_address_qualified(gchar *path, gboolean is_rfc821, gchar *domain);
369 address *create_address_pipe(gchar *path);
370 void destroy_address(address *addr);
371 address *copy_modify_address(const address *orig, gchar *l_part, gchar *dom);
372 #define copy_address(addr) copy_modify_address(addr, NULL, NULL)
373 gboolean addr_isequal(address *addr1, address *addr2, int (*cmpfunc) (const char*, const char*));
374 gboolean addr_isequal_parent(address *addr1, address *addr2, int (*cmpfunc) (const char*, const char*));
375 address *addr_find_ancestor(address *addr);
376 gboolean addr_is_delivered_children(address *addr);
377 gboolean addr_is_finished_children(address *addr);
378 gchar *addr_string(address *addr);
380 /* accept.c */
381 accept_error accept_message(FILE *in, message *msg, guint flags);
382 accept_error accept_message_prepare(message *msg, guint flags);
384 /* header.c */
385 gchar *rec_timestamp();
386 GList *find_header(GList *hdr_list, header_id id, gchar *hdr_str);
387 void header_unfold(header *hdr);
388 void header_fold(header *hdr, unsigned int maxlen);
389 header *create_header(header_id id, gchar *fmt, ...);
390 void destroy_header(header *hdr);
391 header *copy_header(header *hdr);
392 header *get_header(gchar *line);
394 /* smtp_in.c */
395 void smtp_in(FILE *in, FILE *out, gchar *remote_host, gchar *ident);
397 /* listen.c */
398 void listen_port(GList *addr_list, gint qival, char *argv[]);
400 /* parse.c */
401 gboolean split_address(const gchar *path, gchar **local_part, gchar **domain, gboolean is_rfc821);
402 gboolean parse_address_rfc822(gchar *string, gchar **local_begin, gchar **local_end, gchar **domain_begin, gchar **domain_end, gchar **address_end);
403 gboolean parse_address_rfc821(gchar *string, gchar **local_begin, gchar **local_end, gchar **domain_begin, gchar **domain_end, gchar **address_end);
404 address *_create_address(gchar *string, gchar **end, gboolean is_rfc821);
405 address *create_address_rfc821(gchar *string, gchar **end);
406 address *create_address_rfc822(gchar *string, gchar **end);
407 GList *addr_list_append_rfc822(GList *addr_list, gchar *string, gchar *domain);
409 /* connect.c */
410 mxip_addr *connect_hostlist(int *psockfd, gchar *host, guint port, GList *addr_list);
411 mxip_addr *connect_resolvelist(int *psockfd, gchar *host, guint port, GList *res_funcs);
413 /* deliver.c */
414 void msg_rcptlist_local(GList *rcpt_list, GList **, GList **);
415 gboolean deliver_local(msg_out *msgout);
416 gboolean deliver_msglist_host(connect_route *route, GList *msg_list, gchar *host, GList *res_list);
417 gboolean deliver_route_msgout_list(connect_route *route, GList *msgout_list);
418 gboolean deliver_route_msg_list(connect_route *route, GList *msgout_list);
419 gboolean deliver_finish(msg_out *msgout);
420 gboolean deliver_msg_list(GList *msg_list, guint flags);
421 gboolean deliver(message *msg);
423 /* fail_msg.c */
424 gboolean fail_msg(message *msg, gchar *template, GList *failed_rcpts, gchar *err_fmt, va_list args);
425 gboolean warn_msg(message *msg, gchar *template, GList *failed_rcpts, gchar *err_fmt, va_list args);
427 /* interface.c */
428 gboolean init_sockaddr(struct sockaddr_in *name, interface *iface);
429 int make_server_socket(interface *iface);
431 /* local.c */
432 gboolean append_file(message *msg, GList *hdr_list, gchar *user);
433 gboolean pipe_out(message *msg, GList *hdr_list, address *rcpt, gchar *cmd, guint flags);
435 /* log.c */
436 gchar *ext_strerror(int err);
437 gboolean logopen(void);
438 void logclose(void);
439 void vlogwrite(int pri, const char *fmt, va_list args);
440 void logwrite(int pri, const char *fmt, ...);
441 void debugf(const char *fmt, ...);
442 void vdebugf(const char *fmt, va_list args);
443 void maillog(const char *fmt, ...);
445 /* spool.c */
446 gboolean spool_read_data(message *msg);
447 message *msg_spool_read(gchar *uid);
448 gboolean spool_write(message *msg, gboolean do_writedata);
449 gboolean spool_lock(gchar *uid);
450 gboolean spool_unlock(gchar *uid);
451 gboolean spool_delete_all(message *msg);
453 /* queue.c */
454 GList *read_queue(void);
455 gboolean queue_run(void);
456 gboolean queue_run_online(void);
457 void queue_list(void);
458 gboolean queue_delete(gchar *uid);
460 /* online.c */
461 gchar *online_query();
463 /* permissions.c */
464 gboolean is_ingroup(uid_t uid, gid_t gid);
465 void set_euidgid(gint uid, gint gid, uid_t *old_uid, gid_t *old_gid);
466 void set_identity(uid_t old_uid, gchar *task_name);
468 /* rewrite.c */
469 gboolean set_address_header_domain(header *hdr, gchar *domain);
470 gboolean map_address_header(header *hdr, GList *table);
472 /* route.c */
473 msgout_perhost *create_msgout_perhost(gchar *host);
474 void destroy_msgout_perhost(msgout_perhost *mo_ph);
475 void rewrite_headers(msg_out *msgout, connect_route *route);
476 void split_rcpts(GList *rcpt_list, GList *localnets, GList **rl_local, GList **rl_localnet, GList **rl_others);
477 GList *local_rcpts(GList *rcpt_list);
478 GList *remote_rcpts(GList *rcpt_list);
479 gboolean route_strip_msgout(connect_route *route, msg_out *msgout);
480 msg_out *route_prepare_msgout(connect_route *route, msg_out *msgout);
481 GList *route_msgout_list(connect_route *route, GList *msgout_list);
482 gboolean route_sender_is_allowed(connect_route *route, address *ret_path);
483 void route_split_rcpts(connect_route *route, GList *rcpt_list, GList **p_rcpt_list, GList **p_non_rcpt_list);
485 /* tables.c */
486 table_pair *create_pair(gchar *key, gpointer value);
487 table_pair *create_pair_string(gchar *key, gpointer value);
488 table_pair *parse_table_pair(gchar *line, char delim);
489 gpointer *table_find_func(GList *table_list, gchar *key, int (*cmp_func) (const char *, const char *));
490 gpointer *table_find(GList *table_list, gchar *key);
491 gpointer *table_find_case(GList *table_list, gchar *key);
492 gpointer *table_find_fnmatch(GList *table_list, gchar *key);
493 GList *table_read(gchar *fname, gchar delim);
494 void destroy_table(GList *table);
496 /* timeival.c */
497 gint time_interval(gchar *str);
499 /* permissions.c */
500 gboolean is_privileged_user(uid_t uid);
502 /* other things */
504 #define foreach(list, node)\
505 for((node) = g_list_first(list);\
506 (node);\
507 (node) = g_list_next(node))
509 #ifdef ENABLE_DEBUG
510 #define DEBUG(level) if(level <= conf.debug_level)
511 #else
512 /* hopefully the compiler optmizes this away... */
513 #define DEBUG(level) if(0)
514 #endif
516 #define LOG_VERBOSE 0x100
518 #ifndef HAVE_GETLINE
519 #define getline(buf, size, file) getdelim(buf, size, '\n', file)
520 #endif
522 #ifndef HAVE_FDATASYNC
523 #define fdatasync(fd) fsync(fd)
524 #endif
526 #ifndef CONF_DIR
527 #define CONF_DIR "/etc/masqmail"
528 #endif
530 #define CONF_FILE CONF_DIR"/masqmail.conf"
532 #ifndef PID_DIR
533 #define PID_DIR "/var/run"
534 #endif
536 #ifndef va_copy
537 #ifdef __va_copy
538 #define va_copy(ap1, ap2) __va_copy(ap1, ap2)
539 #else
540 #define va_copy(ap1, ap2) G_VA_COPY(ap1, ap2)
541 #endif
542 #endif
544 /* *BSD needs this: */
545 extern char **environ;