masqmail-0.2: e5090ac234cf src/masqmail.h

masqmail-0.2

view src/masqmail.h @ 80:e5090ac234cf

refactoring plus one small bugfix replaced deep nested conditionals with early exits fixed a small bug in the same go (Note: it is bad to fix bugs during refactoring): The SMTP_HELO case did not break in case of error. Now it does.

author	meillo@marmaro.de
date	Sat, 19 Jun 2010 11:11:28 +0200
parents	08114f7dcc23
children	f4719cffc48c

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 *pop3_login;

123

124 gchar *pipe;

125

126 gboolean pipe_fromline;

127 gboolean pipe_fromhack;

128 } connect_route;

129

130 typedef struct _get_conf {

131 gchar *protocol;

132 gchar *server_name;

133 guint server_port;

134 gchar *wrapper;

135 gchar *login_user;

136 gchar *login_pass;

137 address *address;

138 address *return_path;

139 gboolean do_keep;

140 gboolean do_uidl;

141 gboolean do_uidl_dele;

142 gint max_size;

143 gboolean max_size_delete;

144 gint max_count;

145

146 GList *resolve_list;

147

148 } get_conf;

149

150 typedef struct _masqmail_conf {

151 gint mail_uid;

152 gint mail_gid;

153

154 gint orig_uid;

155 gint orig_gid;

156

157 gboolean run_as_user;

158

159 gchar *mail_dir;

160 gchar *lock_dir;

161 gchar *spool_dir;

162 gchar *log_dir;

163

164 gint debug_level;

165 gboolean use_syslog;

166 guint log_max_pri;

167

168 gchar *host_name;

169 GList *local_hosts;

170 GList *local_addresses;

171 GList *not_local_addresses;

172 GList *local_nets;

173 GList *listen_addresses;

174

175 guint remote_port;

176

177 gboolean do_save_envelope_to;

178

179 gboolean defer_all;

180 gboolean do_relay;

181

182 GList *ident_trusted_nets;

183

184 gboolean do_queue;

185

186 gboolean do_verbose;

187

188 gchar *mbox_default;

189 GList *mbox_users;

190 GList *mda_users;

191 GList *maildir_users;

192

193 gchar *mda;

194 gboolean mda_fromline;

195 gboolean mda_fromhack;

196

197 gboolean pipe_fromline;

198 gboolean pipe_fromhack;

199

200 gchar *alias_file;

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

202

203 GList *local_net_routes;

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

205

206 gchar *online_detect;

207 gchar *online_file;

208 gchar *online_pipe;

209 interface *mserver_iface;

210

211 GList *get_names;

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

213

214 gchar *errmsg_file;

215 gchar *warnmsg_file;

216 GList *warn_intervals;

217 gint max_defer_time;

218

219 gchar *log_user;

220 } masqmail_conf;

221

222 extern masqmail_conf conf;

223

224 typedef struct _table_pair {

225 gchar *key;

226 gpointer *value;

227 } table_pair;

228

229

230 typedef enum _prot_id {

231 PROT_LOCAL = 0,

232 PROT_BSMTP,

233 PROT_SMTP,

234 PROT_ESMTP,

235 PROT_POP3,

236 PROT_APOP,

237 PROT_NUM

238 } prot_id;

239

240 extern gchar *prot_names[];

241

242 typedef enum _header_id {

243 HEAD_FROM = 0,

244 HEAD_SENDER,

245 HEAD_TO,

246 HEAD_CC,

247 HEAD_BCC,

248 HEAD_DATE,

249 HEAD_MESSAGE_ID,

250 HEAD_REPLY_TO,

251 HEAD_SUBJECT,

252 HEAD_RETURN_PATH,

253 HEAD_ENVELOPE_TO,

254 HEAD_RECEIVED,

255 HEAD_NUM_IDS,

256 HEAD_STATUS,

257 HEAD_UNKNOWN = HEAD_NUM_IDS,

258 HEAD_NONE = -1,

259 } header_id;

260

261 typedef struct _header_name {

262 gchar *header;

263 header_id id;

264 } header_name;

265

266 typedef struct _header {

267 header_id id;

268 gchar *header;

269 gchar *value;

270 } header;

271

272

273 typedef struct _message {

274 gchar *uid;

275

276 gchar *received_host;

277 prot_id received_prot;

278 gchar *ident;

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

280

281 address *return_path;

282 GList *rcpt_list;

283 GList *non_rcpt_list;

284

285 GList *hdr_list;

286 GList *data_list;

287

288 gint data_size;

289 time_t received_time;

290 time_t warned_time;

291

292 gchar *full_sender_name;

293 } message;

294

295 typedef struct _msg_out {

296 message *msg;

297

298 address *return_path;

299 GList *rcpt_list;

300

301 GList *hdr_list;

302 GList *xtra_hdr_list;

303 } msg_out;

304

305 typedef struct _msgout_perhost {

306 gchar *host;

307 GList *msgout_list;

308 } msgout_perhost;

309

310 /* flags for accept() */

311 /*#define ACC_LOCAL 0x01 (we better use received_host == NULL) */

312 #define ACC_HEAD_FROM_RCPT 0x01 /* create To: Header from rcpt_list (cmd line) */

313 #define ACC_DEL_RCPTS 0x02 /* -t option, delete rcpts */

314 #define ACC_DEL_BCC 0x04 /* -t option, delete Bcc header */

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

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

317 #define ACC_NO_RECVD_HDR 0x20 /* do not create a Received: header */

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

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

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

321

322 #define DLVR_LOCAL 0x01

323 #define DLVR_LAN 0x02

324 #define DLVR_ONLINE 0x04

325 #define DLVR_ALL (DLVR_LOCAL|DLVR_LAN|DLVR_ONLINE)

326

327 /* transport flags */

328 #define MSGSTR_FROMLINE 0x01

329 #define MSGSTR_FROMHACK 0x02

330

331 typedef enum _accept_error {

332 AERR_OK = 0,

333 AERR_TIMEOUT,

334 AERR_EOF,

335 AERR_OVERFLOW,

336 AERR_SYNTAX,

337 AERR_NOSPOOL,

338 AERR_NORCPT,

339 AERR_UNKNOWN

340 } accept_error;

341

342 #define BUF_LEN 1024

343 #define MAX_ADDRESS 256

344 #define MAX_DATALINE 4096

345

346 typedef enum _smtp_cmd_id {

347 SMTP_HELO = 0,

348 SMTP_EHLO,

349 SMTP_MAIL_FROM,

350 SMTP_RCPT_TO,

351 SMTP_DATA,

352 SMTP_QUIT,

353 SMTP_RSET,

354 SMTP_NOOP,

355 SMTP_HELP,

356 SMTP_NUM_IDS,

357 SMTP_EOF = -1,

358 SMTP_ERROR = -2,

359 } smtp_cmd_id;

360

361 typedef struct _smtp_cmd {

362 smtp_cmd_id id;

363 gchar *cmd;

364 } smtp_cmd;

365

366 typedef struct _smtp_connection {

367 gchar *remote_host;

368

369 prot_id prot;

370 gint next_id;

371

372 gboolean helo_seen;

373 gboolean from_seen;

374 gboolean rcpt_seen;

375

376 message *msg;

377 } smtp_connection;

378

379 /* alias.c*/

380 gboolean addr_is_local(address * addr);

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

382

383 /* child.c */

384 int child(const char *command);

385

386 /* conf.c */

387 void init_conf();

388 gboolean read_conf(gchar * filename);

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

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

391 void destroy_route(connect_route * r);

392 void destroy_route_list(GList * list);

393 get_conf *read_get_conf(gchar * filename);

394 void destroy_get_conf(get_conf * gc);

395 connect_route *create_local_route();

396

397 /* expand.c */

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

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

400 GList *var_table_conf(GList * var_table);

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

402

403 /* message.c */

404 message *create_message(void);

405 void destroy_message(message * msg);

406 void destroy_msg_list(GList * msg_list);

407 void msg_free_data(message * msg);

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

409

410 msg_out *create_msg_out(message * msg);

411 msg_out *clone_msg_out(msg_out * msgout_orig);

412 GList *create_msg_out_list(GList * msg_list);

413 void destroy_msg_out(msg_out * msgout);

414 void destroy_msg_out_list(GList * msgout_list);

415

416 /* address.c */

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

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

419 address *create_address_pipe(gchar * path);

420 void destroy_address(address * addr);

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

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

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

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

425 address *addr_find_ancestor(address * addr);

426 gboolean addr_is_delivered_children(address * addr);

427 gboolean addr_is_finished_children(address * addr);

428 gchar *addr_string(address * addr);

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

430

431 /* accept.c */

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

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

434

435 /* header.c */

436 gchar *rec_timestamp();

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

438 void header_unfold(header * hdr);

439 void header_fold(header * hdr);

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

441 void destroy_header(header * hdr);

442 header *copy_header(header * hdr);

443 header *get_header(gchar * line);

444

445 /* smtp_in.c */

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

447

448 /* listen.c */

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

450

451 /* parse.c */

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

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

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

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

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

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

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

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

460

461 /* connect.c */

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

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

464

465 /* deliver.c */

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