masqmail: 4fd237550525 src/masqmail.h

masqmail

view src/masqmail.h @ 205:4fd237550525

REMOVED MAILDIR SUPPORT if you want to deliver to maildir, use an MDA like procmail masqmail can pass mail to an MDA by setting `mda' in masqmail.conf

author	meillo@marmaro.de
date	Fri, 16 Jul 2010 16:38:50 +0200
parents	89f951be358f
children	8cddc65765bd

line source

1 /* MasqMail

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.

17 */

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 do_pipelining;

103

104 gchar *set_h_from_domain;

105 gchar *set_h_reply_to_domain;

106 gchar *set_return_path_domain;

107

108 GList *map_h_from_addresses;

109 GList *map_h_reply_to_addresses;

110 GList *map_h_mail_followup_to_addresses;

111 GList *map_return_path_addresses;

112

113 gboolean expand_h_sender_domain;

114 gboolean expand_h_sender_address;

115

116 GList *resolve_list;

117

118 gchar *auth_name;

119 gchar *auth_login;

120 gchar *auth_secret;

121

122 gchar *pipe;

123

124 gboolean pipe_fromline;

125 gboolean pipe_fromhack;

126 } connect_route;

127

128 typedef struct _masqmail_conf {

129 gint mail_uid;

130 gint mail_gid;

131

132 gint orig_uid;

133 gint orig_gid;

134

135 gboolean run_as_user;

136

137 gchar *mail_dir;

138 gchar *lock_dir;

139 gchar *spool_dir;

140 gchar *log_dir;

141

142 gint debug_level;

143 gboolean use_syslog;

144 guint log_max_pri;

145

146 gchar *host_name;

147 GList *local_hosts;

148 GList *local_addresses;

149 GList *not_local_addresses;

150 GList *local_nets;

151 GList *listen_addresses;

152

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

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

155 gulong max_msg_size;

156

157 gboolean do_save_envelope_to;

158

159 gboolean defer_all;

160 gboolean do_relay;

161

162 GList *ident_trusted_nets;

163

164 gboolean do_queue;

165

166 gboolean do_verbose;

167

168 gchar *mbox_default;

169 GList *mbox_users;

170 GList *mda_users;

171

172 gchar *mda;

173 gboolean mda_fromline;

174 gboolean mda_fromhack;

175

176 gboolean pipe_fromline;

177 gboolean pipe_fromhack;

178

179 gchar *alias_file;

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

181

182 GList *local_net_routes;

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

184

185 gchar *online_detect;

186 gchar *online_file;

187 gchar *online_pipe;

188

189 gchar *errmsg_file;

190 gchar *warnmsg_file;

191 GList *warn_intervals;

192 gint max_defer_time;

193

194 gchar *log_user;

195 } masqmail_conf;

196

197 extern masqmail_conf conf;

198

199 typedef struct _table_pair {

200 gchar *key;

201 gpointer *value;

202 } table_pair;

203

204

205 typedef enum _prot_id {

206 PROT_LOCAL = 0,

207 PROT_BSMTP,

208 PROT_SMTP,

209 PROT_ESMTP,

210 PROT_NUM

211 } prot_id;

212

213 extern gchar *prot_names[];

214

215 typedef enum _header_id {

216 HEAD_FROM = 0,

217 HEAD_SENDER,

218 HEAD_TO,

219 HEAD_CC,

220 HEAD_BCC,

221 HEAD_DATE,

222 HEAD_MESSAGE_ID,

223 HEAD_REPLY_TO,

224 HEAD_SUBJECT,

225 HEAD_RETURN_PATH,

226 HEAD_ENVELOPE_TO,

227 HEAD_RECEIVED,

228 HEAD_NUM_IDS,

229 HEAD_STATUS,

230 HEAD_UNKNOWN = HEAD_NUM_IDS,

231 HEAD_NONE = -1,

232 } header_id;

233

234 typedef struct _header_name {

235 gchar *header;

236 header_id id;

237 } header_name;

238

239 typedef struct _header {

240 header_id id;

241 gchar *header;

242 gchar *value;

243 } header;

244

245

246 typedef struct _message {

247 gchar *uid;

248

249 gchar *received_host;

250 prot_id received_prot;

251 gchar *ident;

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

253

254 address *return_path;

255 GList *rcpt_list;

256 GList *non_rcpt_list;

257

258 GList *hdr_list;

259 GList *data_list;

260

261 gint data_size;

262 time_t received_time;

263 time_t warned_time;

264

265 gchar *full_sender_name;

266 } message;

267

268 typedef struct _msg_out {

269 message *msg;

270

271 address *return_path;

272 GList *rcpt_list;

273

274 GList *hdr_list;

275 GList *xtra_hdr_list;

276 } msg_out;

277

278 typedef struct _msgout_perhost {

279 gchar *host;

280 GList *msgout_list;

281 } msgout_perhost;

282

283 /* flags for accept() */

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

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

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

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

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

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

290

291 #define DLVR_LOCAL 0x01

292 #define DLVR_LAN 0x02

293 #define DLVR_ONLINE 0x04

294 #define DLVR_ALL (DLVR_LOCAL|DLVR_LAN|DLVR_ONLINE)

295

296 /* transport flags */

297 #define MSGSTR_FROMLINE 0x01

298 #define MSGSTR_FROMHACK 0x02

299

300 typedef enum _accept_error {

301 AERR_OK = 0,

302 AERR_TIMEOUT,

303 AERR_EOF,

304 AERR_OVERFLOW,

305 AERR_SYNTAX,

306 AERR_NOSPOOL,

307 AERR_NORCPT,

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

309 AERR_UNKNOWN

310 } accept_error;

311

312 #define BUF_LEN 1024

313 #define MAX_ADDRESS 256

314 #define MAX_DATALINE 4096

315

316 typedef enum _smtp_cmd_id {

317 SMTP_HELO = 0,

318 SMTP_EHLO,

319 SMTP_MAIL_FROM,

320 SMTP_RCPT_TO,

321 SMTP_DATA,

322 SMTP_QUIT,

323 SMTP_RSET,

324 SMTP_NOOP,

325 SMTP_HELP,

326 SMTP_NUM_IDS,

327 SMTP_EOF = -1,

328 SMTP_ERROR = -2,

329 } smtp_cmd_id;

330

331 typedef struct _smtp_cmd {

332 smtp_cmd_id id;

333 gchar *cmd;

334 } smtp_cmd;

335

336 typedef struct _smtp_connection {

337 gchar *remote_host;

338

339 prot_id prot;

340 gint next_id;

341

342 gboolean helo_seen;

343 gboolean from_seen;

344 gboolean rcpt_seen;

345

346 message *msg;

347 } smtp_connection;

348

349 /* alias.c*/

350 gboolean addr_is_local(address * addr);

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

352

353 /* child.c */

354 int child(const char *command);

355

356 /* conf.c */

357 void init_conf();

358 gboolean read_conf(gchar * filename);

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

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

361 void destroy_route(connect_route * r);

362 void destroy_route_list(GList * list);

363 connect_route *create_local_route();

364

365 /* expand.c */

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

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

368 GList *var_table_conf(GList * var_table);

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

370

371 /* message.c */

372 message *create_message(void);

373 void destroy_message(message * msg);

374 void destroy_msg_list(GList * msg_list);

375 void msg_free_data(message * msg);

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

377

378 msg_out *create_msg_out(message * msg);

379 msg_out *clone_msg_out(msg_out * msgout_orig);

380 GList *create_msg_out_list(GList * msg_list);

381 void destroy_msg_out(msg_out * msgout);

382 void destroy_msg_out_list(GList * msgout_list);

383

384 /* address.c */

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

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

387 address *create_address_pipe(gchar * path);

388 void destroy_address(address * addr);

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

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

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

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

393 address *addr_find_ancestor(address * addr);

394 gboolean addr_is_delivered_children(address * addr);

395 gboolean addr_is_finished_children(address * addr);

396 gchar *addr_string(address * addr);

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

398

399 /* accept.c */

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

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

402

403 /* header.c */

404 gchar *rec_timestamp();

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

406 void header_unfold(header * hdr);

407 void header_fold(header * hdr);

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

409 void destroy_header(header * hdr);

410 header *copy_header(header * hdr);

411 header *get_header(gchar * line);

412

413 /* smtp_in.c */

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

415

416 /* listen.c */

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

418

419 /* parse.c */

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

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

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

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

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

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

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

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

428

429 /* connect.c */

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

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

432

433 /* deliver.c */

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