masqmail-0.2: a2bec9a14324 src/masqmail.h

masqmail-0.2

view src/masqmail.h @ 173:a2bec9a14324

updated date and version in man pages

author	meillo@marmaro.de
date	Fri, 23 Jul 2010 10:15:49 +0200
parents	5ec5e6637049
children	087e99c7702a

line source

1 /* MasqMail

2 Copyright (C) 1999-2001 Oliver Kurth

4 This program is free software; you can redistribute it and/or modify

5 it under the terms of the GNU General Public License as published by

6 the Free Software Foundation; either version 2 of the License, or

7 (at your option) any later version.

9 This program is distributed in the hope that it will be useful,

10 but WITHOUT ANY WARRANTY; without even the implied warranty of

11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

12 GNU General Public License for more details.

14 You should have received a copy of the GNU General Public License

15 along with this program; if not, write to the Free Software

16 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

18 #include <config.h>

20 #include <stdio.h>

21 #include <stdarg.h>

22 #include <errno.h>

23 #include <stdlib.h>

24 #include <string.h>

25 #include <ctype.h>

26 #include <unistd.h>

27 #include <pwd.h>

28 #include <sys/types.h>

29 #include <sys/socket.h>

30 #include <netinet/in.h>

31 #include <time.h>

32 #include <sys/time.h>

33 #include <netinet/in.h>

34 #include <arpa/inet.h>

35 #include <netdb.h>

36 #include <syslog.h>

37 #include <signal.h>

38 #include <fcntl.h>

40 #include <glib.h>

42 #ifdef ENABLE_IDENT

43 #include "libident/ident.h"

44 #endif

46 #include "lookup.h"

48 typedef struct _interface {

49 gchar *address;

50 gint port;

51 } interface;

53 #define ADDR_FLAG_DELIVERED 0x01

54 #define ADDR_FLAG_DEFERED 0x02

55 #define ADDR_FLAG_FAILED 0x04

56 #define ADDR_FLAG_LAST_ROUTE 0x40

57 #define ADDR_FLAG_NOEXPAND 0x80

59 typedef struct _address {

60 gchar *address;

61 gchar *local_part;

62 gchar *domain;

63 gint flags;

64 GList *children;

65 struct _address *parent;

66 } address;

68 #define addr_mark_delivered(addr) { addr->flags |= ADDR_FLAG_DELIVERED; }

69 #define addr_unmark_delivered(addr) { addr->flags &= ~ADDR_FLAG_DELIVERED; }

70 #define addr_is_delivered(addr) ((addr->flags & ADDR_FLAG_DELIVERED) != 0 )

72 #define addr_mark_defered(addr) { addr->flags |= ADDR_FLAG_DEFERED; }

73 #define addr_unmark_defered(addr) { addr->flags &= ~ADDR_FLAG_DEFERED; }

74 #define addr_is_defered(addr) ((addr->flags & ADDR_FLAG_DEFERED) != 0 )

76 #define addr_mark_failed(addr) { addr->flags |= ADDR_FLAG_FAILED; }

77 #define addr_unmark_failed(addr) { addr->flags &= ~ADDR_FLAG_FAILED; }

78 #define addr_is_failed(addr) ((addr->flags & ADDR_FLAG_FAILED) != 0 )

80 typedef struct _connect_route {

81 gchar *name;

82 gchar *filename;

84 gchar *protocol;

86 gboolean is_local_net;

87 gboolean last_route;

89 GList *allowed_return_paths;

90 GList *not_allowed_return_paths;

91 GList *allowed_mail_locals;

92 GList *not_allowed_mail_locals;

93 GList *allowed_rcpt_domains;

94 GList *not_allowed_rcpt_domains;

96 interface *mail_host;

97 gchar *wrapper;

98 gboolean connect_error_fail;

100 gchar *helo_name;

101 gboolean do_correct_helo;

102 gboolean instant_helo;

103 gboolean do_pipelining;

105 gchar *set_h_from_domain;

106 gchar *set_h_reply_to_domain;

107 gchar *set_return_path_domain;

109 GList *map_h_from_addresses;

110 GList *map_h_reply_to_addresses;

111 GList *map_h_mail_followup_to_addresses;

112 GList *map_return_path_addresses;

114 gboolean expand_h_sender_domain;

115 gboolean expand_h_sender_address;

117 GList *resolve_list;

119 gchar *auth_name;

120 gchar *auth_login;

121 gchar *auth_secret;

123 gchar *pop3_login;

125 gchar *pipe;

127 gboolean pipe_fromline;

128 gboolean pipe_fromhack;

129 } connect_route;

131 typedef struct _get_conf {

132 gchar *protocol;

133 gchar *server_name;

134 guint server_port;

135 gchar *wrapper;

136 gchar *login_user;

137 gchar *login_pass;

138 address *address;

139 address *return_path;

140 gboolean do_keep;

141 gboolean do_uidl;

142 gboolean do_uidl_dele;

143 gint max_size;

144 gboolean max_size_delete;

145 gint max_count;

147 GList *resolve_list;

149 } get_conf;

151 typedef struct _masqmail_conf {

152 gint mail_uid;

153 gint mail_gid;

155 gint orig_uid;

156 gint orig_gid;

158 gboolean run_as_user;

160 gchar *mail_dir;

161 gchar *lock_dir;

162 gchar *spool_dir;

163 gchar *log_dir;

165 gint debug_level;

166 gboolean use_syslog;

167 guint log_max_pri;

169 gchar *host_name;

170 GList *local_hosts;

171 GList *local_addresses;

172 GList *not_local_addresses;

173 GList *local_nets;

174 GList *listen_addresses;

176 guint remote_port;

178 /* ANSI C defines unsigned long to be at least 32bit

179 i.e. ca. 4GB max; that should be enough. */

180 gulong max_msg_size;

182 gboolean do_save_envelope_to;

184 gboolean defer_all;

185 gboolean do_relay;

187 GList *ident_trusted_nets;

189 gboolean do_queue;

191 gboolean do_verbose;

193 gchar *mbox_default;

194 GList *mbox_users;

195 GList *mda_users;

196 GList *maildir_users;

198 gchar *mda;

199 gboolean mda_fromline;

200 gboolean mda_fromhack;

202 gboolean pipe_fromline;

203 gboolean pipe_fromhack;

205 gchar *alias_file;

206 int (*alias_local_cmp) (const char *, const char *);

208 GList *local_net_routes;

209 GList *connect_routes; /* list of pairs which point to lists */

211 gchar *online_detect;

212 gchar *online_file;

213 gchar *online_pipe;

214 interface *mserver_iface;

216 GList *get_names;

217 GList *online_gets; /* list of pairs which point to lists */

219 gchar *errmsg_file;

220 gchar *warnmsg_file;

221 GList *warn_intervals;

222 gint max_defer_time;

224 gchar *log_user;

225 } masqmail_conf;

227 extern masqmail_conf conf;

229 typedef struct _table_pair {

230 gchar *key;

231 gpointer *value;

232 } table_pair;

235 typedef enum _prot_id {

236 PROT_LOCAL = 0,

237 PROT_BSMTP,

238 PROT_SMTP,

239 PROT_ESMTP,

240 PROT_POP3,

241 PROT_APOP,

242 PROT_NUM

243 } prot_id;

245 extern gchar *prot_names[];

247 typedef enum _header_id {

248 HEAD_FROM = 0,

249 HEAD_SENDER,

250 HEAD_TO,

251 HEAD_CC,

252 HEAD_BCC,

253 HEAD_DATE,

254 HEAD_MESSAGE_ID,

255 HEAD_REPLY_TO,

256 HEAD_SUBJECT,

257 HEAD_RETURN_PATH,

258 HEAD_ENVELOPE_TO,

259 HEAD_RECEIVED,

260 HEAD_NUM_IDS,

261 HEAD_STATUS,

262 HEAD_UNKNOWN = HEAD_NUM_IDS,

263 HEAD_NONE = -1,

264 } header_id;

266 typedef struct _header_name {

267 gchar *header;

268 header_id id;

269 } header_name;

271 typedef struct _header {

272 header_id id;

273 gchar *header;

274 gchar *value;

275 } header;

278 typedef struct _message {

279 gchar *uid;

281 gchar *received_host;

282 prot_id received_prot;

283 gchar *ident;

284 gint transfer_id; /* for multiple messages per transfer */

286 address *return_path;

287 GList *rcpt_list;

288 GList *non_rcpt_list;

290 GList *hdr_list;

291 GList *data_list;

293 gint data_size;

294 time_t received_time;

295 time_t warned_time;

297 gchar *full_sender_name;

298 } message;

300 typedef struct _msg_out {

301 message *msg;

303 address *return_path;

304 GList *rcpt_list;

306 GList *hdr_list;

307 GList *xtra_hdr_list;

308 } msg_out;

310 typedef struct _msgout_perhost {

311 gchar *host;

312 GList *msgout_list;

313 } msgout_perhost;

315 /* flags for accept() */

316 #define ACC_DEL_RCPTS 0x02 /* -t option, delete rcpts that were given as cmd args */

317 #define ACC_RCPT_FROM_HEAD 0x08 /* -t option, get rcpts from headers */

318 #define ACC_DOT_IGNORE 0x10 /* a dot on a line itself does not end the message (-oi option) */

319 #define ACC_MAIL_FROM_HEAD 0x40 /* get return path from header */

320 #define ACC_NODOT_RELAX 0x80 /* do not be picky if message ist not terminated by a dot on a line */

321 #define ACC_SAVE_ENVELOPE_TO 0x0100 /* save an existent Envelope-to header as X-Orig-Envelope-to */

323 #define DLVR_LOCAL 0x01

324 #define DLVR_LAN 0x02

325 #define DLVR_ONLINE 0x04

326 #define DLVR_ALL (DLVR_LOCAL|DLVR_LAN|DLVR_ONLINE)

328 /* transport flags */

329 #define MSGSTR_FROMLINE 0x01

330 #define MSGSTR_FROMHACK 0x02

332 typedef enum _accept_error {

333 AERR_OK = 0,

334 AERR_TIMEOUT,

335 AERR_EOF,

336 AERR_OVERFLOW,

337 AERR_SYNTAX,

338 AERR_NOSPOOL,

339 AERR_NORCPT,

340 AERR_SIZE, /* max msg size exeeded (SMTP SIZE) */

341 AERR_UNKNOWN

342 } accept_error;

344 #define BUF_LEN 1024

345 #define MAX_ADDRESS 256

346 #define MAX_DATALINE 4096

348 typedef enum _smtp_cmd_id {

349 SMTP_HELO = 0,

350 SMTP_EHLO,

351 SMTP_MAIL_FROM,

352 SMTP_RCPT_TO,

353 SMTP_DATA,

354 SMTP_QUIT,

355 SMTP_RSET,

356 SMTP_NOOP,

357 SMTP_HELP,

358 SMTP_NUM_IDS,

359 SMTP_EOF = -1,

360 SMTP_ERROR = -2,

361 } smtp_cmd_id;

363 typedef struct _smtp_cmd {

364 smtp_cmd_id id;

365 gchar *cmd;

366 } smtp_cmd;

368 typedef struct _smtp_connection {

369 gchar *remote_host;

371 prot_id prot;

372 gint next_id;

374 gboolean helo_seen;

375 gboolean from_seen;

376 gboolean rcpt_seen;

378 message *msg;

379 } smtp_connection;

381 /* alias.c*/

382 gboolean addr_is_local(address * addr);

383 GList *alias_expand(GList * alias_table, GList * rcpt_list, GList * non_rcpt_list);

385 /* child.c */

386 int child(const char *command);

388 /* conf.c */

389 void init_conf();

390 gboolean read_conf(gchar * filename);

391 connect_route *read_route(gchar * filename, gboolean is_local_net);

392 GList *read_route_list(GList * rf_list, gboolean is_local_net);

393 void destroy_route(connect_route * r);

394 void destroy_route_list(GList * list);

395 get_conf *read_get_conf(gchar * filename);

396 void destroy_get_conf(get_conf * gc);

397 connect_route *create_local_route();

399 /* expand.c */

400 GList *var_table_rcpt(GList * var_table, address * rcpt);

401 GList *var_table_msg(GList * var_table, message * msg);

402 GList *var_table_conf(GList * var_table);

403 gint expand(GList * var_list, gchar * format, gchar * result, gint result_len);

405 /* message.c */

406 message *create_message(void);

407 void destroy_message(message * msg);

408 void destroy_msg_list(GList * msg_list);

409 void msg_free_data(message * msg);

410 gint msg_calc_size(message * msg, gboolean is_smtp);

412 msg_out *create_msg_out(message * msg);

413 msg_out *clone_msg_out(msg_out * msgout_orig);

414 GList *create_msg_out_list(GList * msg_list);

415 void destroy_msg_out(msg_out * msgout);

416 void destroy_msg_out_list(GList * msgout_list);

418 /* address.c */

419 address *create_address(gchar * path, gboolean is_rfc821);

420 address *create_address_qualified(gchar * path, gboolean is_rfc821, gchar * domain);

421 address *create_address_pipe(gchar * path);

422 void destroy_address(address * addr);

423 address *copy_modify_address(const address * orig, gchar * l_part, gchar * dom);

424 #define copy_address(addr) copy_modify_address(addr, NULL, NULL)

425 gboolean addr_isequal(address * addr1, address * addr2);

426 gboolean addr_isequal_parent(address * addr1, address * addr2);

427 address *addr_find_ancestor(address * addr);

428 gboolean addr_is_delivered_children(address * addr);

429 gboolean addr_is_finished_children(address * addr);

430 gchar *addr_string(address * addr);

431 gint addr_match(address * addr1, address * addr2);

433 /* accept.c */

434 accept_error accept_message(FILE * in, message * msg, guint flags);

435 accept_error accept_message_prepare(message * msg, guint flags);

437 /* header.c */

438 gchar *rec_timestamp();

439 GList *find_header(GList * hdr_list, header_id id, gchar * hdr_str);

440 void header_unfold(header * hdr);

441 void header_fold(header * hdr);

442 header *create_header(header_id id, gchar * fmt, ...);

443 void destroy_header(header * hdr);

444 header *copy_header(header * hdr);

445 header *get_header(gchar * line);

447 /* smtp_in.c */

448 void smtp_in(FILE * in, FILE * out, gchar * remote_host, gchar * ident);

450 /* listen.c */

451 void listen_port(GList * addr_list, gint qival, char *argv[]);

453 /* parse.c */

454 gboolean split_address(const gchar * path, gchar ** local_part, gchar ** domain, gboolean is_rfc821);

455 gboolean parse_address_rfc822(gchar * string, gchar ** local_begin, gchar ** local_end, gchar ** domain_begin, gchar ** domain_end, gchar ** address_end);

456 gboolean parse_address_rfc821(gchar * string, gchar ** local_begin, gchar ** local_end, gchar ** domain_begin, gchar ** domain_end, gchar ** address_end);

457 address *_create_address(gchar * string, gchar ** end, gboolean is_rfc821);

458 address *create_address_rfc821(gchar * string, gchar ** end);

459 address *create_address_rfc822(gchar * string, gchar ** end);

460 GList *addr_list_append_rfc822(GList * addr_list, gchar * string, gchar * domain);

461 gboolean addr_isequal(address * addr1, address * addr2);

463 /* connect.c */

464 mxip_addr *connect_hostlist(int *psockfd, gchar * host, guint port, GList * addr_list);

465 mxip_addr *connect_resolvelist(int *psockfd, gchar * host, guint port, GList * res_funcs);

467 /* deliver.c */

468 void msg_rcptlist_local(GList * rcpt_list, GList **, GList **);

469 gboolean deliver_local(msg_out * msgout);

470 gboolean deliver_msglist_host(connect_route * route, GList * msg_list, gchar * host, GList * res_list);

471 gboolean deliver_route_msgout_list(connect_route * route, GList * msgout_list);

472 gboolean deliver_route_msg_list(connect_route * route, GList * msgout_list);

473 gboolean deliver_finish(msg_out * msgout);

474 gboolean deliver_finish_list(GList * msgout_list);

475 gboolean deliver_msg_list(GList * msg_list, guint flags);

476 gboolean deliver(message * msg);

478 /* fail_msg.c */

479 gboolean fail_msg(message * msg, gchar * template, GList * failed_rcpts, gchar * err_fmt, va_list args);

480 gboolean warn_msg(message * msg, gchar * template, GList * failed_rcpts, gchar * err_fmt, va_list args);

482 /* get.c */

483 gboolean get_from_file(gchar * fname);

484 gboolean get_from_name(gchar * name);

485 gboolean get_all(void);

486 void get_online(void);

487 void get_daemon(gint gival, char *argv[]);

488 gboolean pop_before_smtp(gchar * fname);

490 /* interface.c */

491 gboolean init_sockaddr(struct sockaddr_in *name, interface * iface);

492 int make_server_socket(interface * iface);

494 /* local.c */

495 gboolean append_file(message * msg, GList * hdr_list, gchar * user);

496 gboolean maildir_out(message * msg, GList * hdr_list, gchar * user, guint flags);

497 gboolean pipe_out(message * msg, GList * hdr_list, address * rcpt, gchar * cmd, guint flags);

499 /* log.c */

500 gchar *ext_strerror(int err);

501 gboolean logopen(void);

502 void logclose(void);

503 void vlogwrite(int pri, const char *fmt, va_list args);

504 void logwrite(int pri, const char *fmt, ...);

505 void debugf(const char *fmt, ...);

506 void vdebugf(const char *fmt, va_list args);

507 void maillog(const char *fmt, ...);

509 /* spool.c */

510 gboolean spool_read_data(message * msg);

511 gboolean spool_read_data(message * msg);

512 message *msg_spool_read(gchar * uid, gboolean do_readdata);

513 gboolean spool_write(message * msg, gboolean do_writedata);

514 gboolean spool_lock(gchar * uid);

515 gboolean spool_unlock(gchar * uid);

516 gboolean spool_delete_all(message * msg);

518 /* queue.c */

519 GList *read_queue(gboolean do_readdata);

520 gboolean queue_run(void);

521 gboolean queue_run_online(void);

522 void queue_list(void);

523 gboolean queue_delete(gchar * uid);

525 /* online.c */

526 gchar *detect_online();

527 void set_online_name(gchar * name);

529 /* permissions.c */

530 gboolean is_ingroup(uid_t uid, gid_t gid);

531 void set_euidgid(gint uid, gint gid, uid_t * old_uid, gid_t * old_gid);

532 void set_identity(uid_t old_uid, gchar * task_name);

534 /* rewrite.c */

535 gboolean set_address_header_domain(header * hdr, gchar * domain);

536 gboolean map_address_header(header * hdr, GList * table);

538 /* route.c */

539 msgout_perhost *create_msgout_perhost(gchar * host);

540 void destroy_msgout_perhost(msgout_perhost * mo_ph);

541 void rewrite_headers(msg_out * msgout, connect_route * route);

542 void rcptlist_with_one_of_hostlist(GList * rcpt_list, GList * host_list, GList **, GList **);

543 void rcptlist_with_addr_is_local(GList * rcpt_list, GList ** p_rcpt_list, GList ** p_non_rcpt_list);

544 gboolean route_strip_msgout(connect_route * route, msg_out * msgout);

545 msg_out *route_prepare_msgout(connect_route * route, msg_out * msgout);

546 GList *route_msgout_list(connect_route * route, GList * msgout_list);

547 gboolean route_is_allowed_return_path(connect_route * route, address * ret_path);

548 gboolean route_is_allowed_mail_local(connect_route * route, address * ret_path);

549 void msg_rcptlist_route(connect_route * route, GList * rcpt_list, GList ** p_rcpt_list, GList ** p_non_rcpt_list);

551 /* tables.c */

552 table_pair *create_pair(gchar * key, gpointer value);

553 table_pair *create_pair_string(gchar * key, gpointer value);

554 table_pair *parse_table_pair(gchar * line, char delim);

555 gpointer *table_find_func(GList * table_list, gchar * key, int (*cmp_func) (const char *, const char *));

556 gpointer *table_find(GList * table_list, gchar * key);

557 gpointer *table_find_case(GList * table_list, gchar * key);

558 gpointer *table_find_fnmatch(GList * table_list, gchar * key);

559 GList *table_read(gchar * fname, gchar delim);

560 void destroy_table(GList * table);

562 /* timeival.c */

563 gint time_interval(gchar * str, gint * pos);

565 /* permissions.c */

566 gboolean is_privileged_user(uid_t uid);

568 /* other things */

570 #define foreach(list, node)\

571 for((node) = g_list_first(list);\

572 (node);\

573 (node) = g_list_next(node))

575 #ifdef ENABLE_DEBUG

576 #define DEBUG(level) if(level <= conf.debug_level)

577 #else

578 /* hopefully the compiler optmizes this away... */

579 #define DEBUG(level) if(0)

580 #endif

582 #define LOG_VERBOSE 0x100

584 #ifndef HAVE_GETLINE

585 #define getline(buf, size, file) getdelim(buf, size, '\n', file)

586 #endif

588 #ifndef HAVE_FDATASYNC

589 #define fdatasync(fd) fsync(fd)

590 #endif

592 #ifndef CONF_DIR

593 #define CONF_DIR "/etc/masqmail"

594 #endif

596 #define CONF_FILE CONF_DIR"/masqmail.conf"

598 #define PIDFILEDIR "/var/run/masqmail/"

600 #ifndef va_copy

601 #ifdef __va_copy

602 #define va_copy(ap1, ap2) __va_copy(ap1, ap2)

603 #else

604 #define va_copy(ap1, ap2) G_VA_COPY(ap1, ap2)

605 #endif

606 #endif

608 /* *BSD needs this: */

609 extern char **environ;