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- Sun Dec 17 07:19:04 UTC 2000
[libfaim.git] / aim_rxhandlers.c
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9de3ca7e 1/*
24286d93 2 * aim_rxhandlers.c
3 *
4 * This file contains most all of the incoming packet handlers, along
5 * with aim_rxdispatch(), the Rx dispatcher. Queue/list management is
6 * actually done in aim_rxqueue.c.
7 *
9de3ca7e 8 */
9
a25832e6 10#include <faim/aim.h>
9de3ca7e 11
24286d93 12/*
13 * Bleck functions get called when there's no non-bleck functions
14 * around to cleanup the mess...
15 */
78b3fb13 16faim_internal int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...)
9de3ca7e 17{
18 u_short family;
19 u_short subtype;
01b59e1e 20
21 u_short maxf;
22 u_short maxs;
23
24 /* XXX: this is ugly. and big just for debugging. */
25 char *literals[14][25] = {
26 {"Invalid",
27 NULL
28 },
29 {"General",
30 "Invalid",
31 "Error",
32 "Client Ready",
33 "Server Ready",
34 "Service Request",
35 "Redirect",
36 "Rate Information Request",
37 "Rate Information",
38 "Rate Information Ack",
39 NULL,
40 "Rate Information Change",
41 "Server Pause",
42 NULL,
43 "Server Resume",
44 "Request Personal User Information",
45 "Personal User Information",
46 "Evil Notification",
47 NULL,
48 "Migration notice",
49 "Message of the Day",
50 "Set Privacy Flags",
51 "Well Known URL",
52 "NOP"
53 },
54 {"Location",
55 "Invalid",
56 "Error",
57 "Request Rights",
58 "Rights Information",
59 "Set user information",
60 "Request User Information",
61 "User Information",
62 "Watcher Sub Request",
63 "Watcher Notification"
64 },
65 {"Buddy List Management",
66 "Invalid",
67 "Error",
68 "Request Rights",
69 "Rights Information",
70 "Add Buddy",
71 "Remove Buddy",
72 "Watcher List Query",
73 "Watcher List Response",
74 "Watcher SubRequest",
75 "Watcher Notification",
76 "Reject Notification",
77 "Oncoming Buddy",
78 "Offgoing Buddy"
79 },
80 {"Messeging",
81 "Invalid",
82 "Error",
83 "Add ICBM Parameter",
84 "Remove ICBM Parameter",
85 "Request Parameter Information",
86 "Parameter Information",
87 "Outgoing Message",
88 "Incoming Message",
89 "Evil Request",
90 "Evil Reply",
91 "Missed Calls",
92 "Message Error",
93 "Host Ack"
94 },
95 {"Advertisements",
96 "Invalid",
97 "Error",
98 "Request Ad",
99 "Ad Data (GIFs)"
100 },
101 {"Invitation / Client-to-Client",
102 "Invalid",
103 "Error",
104 "Invite a Friend",
105 "Invitation Ack"
106 },
107 {"Administrative",
108 "Invalid",
109 "Error",
110 "Information Request",
111 "Information Reply",
112 "Information Change Request",
113 "Information Chat Reply",
114 "Account Confirm Request",
115 "Account Confirm Reply",
116 "Account Delete Request",
117 "Account Delete Reply"
118 },
119 {"Popups",
120 "Invalid",
121 "Error",
122 "Display Popup"
123 },
124 {"BOS",
125 "Invalid",
126 "Error",
127 "Request Rights",
128 "Rights Response",
129 "Set group permission mask",
130 "Add permission list entries",
131 "Delete permission list entries",
132 "Add deny list entries",
133 "Delete deny list entries",
134 "Server Error"
135 },
136 {"User Lookup",
137 "Invalid",
138 "Error",
139 "Search Request",
140 "Search Response"
141 },
142 {"Stats",
143 "Invalid",
144 "Error",
145 "Set minimum report interval",
146 "Report Events"
147 },
148 {"Translate",
149 "Invalid",
150 "Error",
151 "Translate Request",
152 "Translate Reply",
153 },
154 {"Chat Navigation",
155 "Invalid",
156 "Error",
157 "Request rights",
158 "Request Exchange Information",
159 "Request Room Information",
160 "Request Occupant List",
161 "Search for Room",
162 "Outgoing Message",
163 "Incoming Message",
164 "Evil Request",
165 "Evil Reply",
166 "Chat Error",
167 }
168 };
169
170 maxf = sizeof(literals) / sizeof(literals[0]);
171 maxs = sizeof(literals[0]) / sizeof(literals[0][0]);
172
173 family = aimutil_get16(workingPtr->data+0);
174 subtype= aimutil_get16(workingPtr->data+2);
175
176 if((family < maxf) && (subtype+1 < maxs) && (literals[family][subtype] != NULL))
177 printf("bleck: null handler for %04x/%04x (%s)\n", family, subtype, literals[family][subtype+1]);
178 else
179 printf("bleck: null handler for %04x/%04x (no literal)\n",family,subtype);
180
9de3ca7e 181 return 1;
182}
183
78b3fb13 184faim_export int aim_conn_addhandler(struct aim_session_t *sess,
a25832e6 185 struct aim_conn_t *conn,
9de3ca7e 186 u_short family,
187 u_short type,
188 rxcallback_t newhandler,
189 u_short flags)
190{
871e2fd0 191 struct aim_rxcblist_t *newcb;
9de3ca7e 192
193 if (!conn)
194 return -1;
195
b8d0da45 196 faimdprintf(1, "aim_conn_addhandler: adding for %04x/%04x\n", family, type);
9de3ca7e 197
871e2fd0 198 if (!(newcb = (struct aim_rxcblist_t *)calloc(1, sizeof(struct aim_rxcblist_t))))
199 return -1;
a15d82b1 200 newcb->family = family;
201 newcb->type = type;
202 newcb->flags = flags;
9de3ca7e 203 if (!newhandler)
a15d82b1 204 newcb->handler = &bleck;
9de3ca7e 205 else
a15d82b1 206 newcb->handler = newhandler;
207 newcb->next = NULL;
9de3ca7e 208
871e2fd0 209 if (!conn->handlerlist)
a15d82b1 210 conn->handlerlist = newcb;
871e2fd0 211 else {
212 struct aim_rxcblist_t *cur;
213
214 cur = conn->handlerlist;
215
216 while (cur->next)
217 cur = cur->next;
218 cur->next = newcb;
219 }
9de3ca7e 220
221 return 0;
222}
223
78b3fb13 224faim_export int aim_clearhandlers(struct aim_conn_t *conn)
9de3ca7e 225{
871e2fd0 226 struct aim_rxcblist_t *cur;
227
9de3ca7e 228 if (!conn)
229 return -1;
230
55e77c8a 231 for (cur = conn->handlerlist; cur; ) {
871e2fd0 232 struct aim_rxcblist_t *tmp;
233
234 tmp = cur->next;
235 free(cur);
236 cur = tmp;
237 }
55e77c8a 238 conn->handlerlist = NULL;
871e2fd0 239
9de3ca7e 240 return 0;
241}
242
78b3fb13 243faim_internal rxcallback_t aim_callhandler(struct aim_conn_t *conn,
244 u_short family,
245 u_short type)
9de3ca7e 246{
247 struct aim_rxcblist_t *cur;
248
249 if (!conn)
250 return NULL;
251
b8d0da45 252 faimdprintf(1, "aim_callhandler: calling for %04x/%04x\n", family, type);
9de3ca7e 253
254 cur = conn->handlerlist;
255 while(cur)
256 {
257 if ( (cur->family == family) && (cur->type == type) )
258 return cur->handler;
259 cur = cur->next;
260 }
261
262 if (type==0xffff)
263 return NULL;
871e2fd0 264
9de3ca7e 265 return aim_callhandler(conn, family, 0xffff);
266}
267
78b3fb13 268faim_internal int aim_callhandler_noparam(struct aim_session_t *sess,
269 struct aim_conn_t *conn,
270 u_short family,
271 u_short type,
272 struct command_rx_struct *ptr)
9de3ca7e 273{
274 rxcallback_t userfunc = NULL;
275 userfunc = aim_callhandler(conn, family, type);
276 if (userfunc)
a25832e6 277 return userfunc(sess, ptr);
b8d0da45 278 return 1; /* XXX */
9de3ca7e 279}
280
281/*
282 aim_rxdispatch()
283
284 Basically, heres what this should do:
285 1) Determine correct packet handler for this packet
286 2) Mark the packet handled (so it can be dequeued in purge_queue())
287 3) Send the packet to the packet handler
288 4) Go to next packet in the queue and start over
289 5) When done, run purge_queue() to purge handled commands
290
291 Note that any unhandlable packets should probably be left in the
292 queue. This is the best way to prevent data loss. This means
293 that a single packet may get looked at by this function multiple
294 times. This is more good than bad! This behavior may change.
295
296 Aren't queue's fun?
297
298 TODO: Get rid of all the ugly if's.
299 TODO: Clean up.
300 TODO: More support for mid-level handlers.
301 TODO: Allow for NULL handlers.
302
303 */
78b3fb13 304faim_export int aim_rxdispatch(struct aim_session_t *sess)
9de3ca7e 305{
306 int i = 0;
307 struct command_rx_struct *workingPtr = NULL;
308
b8d0da45 309 if (sess->queue_incoming == NULL) {
310 faimdprintf(1, "parse_generic: incoming packet queue empty.\n");
311 return 0;
312 } else {
313 workingPtr = sess->queue_incoming;
50443ea0 314 for (i = 0; workingPtr != NULL; workingPtr = workingPtr->next, i++) {
b8d0da45 315 /*
316 * XXX: This is still fairly ugly.
317 */
50443ea0 318 if (workingPtr->handled)
319 continue;
320
b69540e3 321 /*
322 * This is a debugging/sanity check only and probably could/should be removed
323 * for stable code.
324 */
325 if (((workingPtr->hdrtype == AIM_FRAMETYPE_OFT) &&
326 (workingPtr->conn->type != AIM_CONN_TYPE_RENDEZVOUS)) ||
327 ((workingPtr->hdrtype == AIM_FRAMETYPE_OSCAR) &&
328 (workingPtr->conn->type == AIM_CONN_TYPE_RENDEZVOUS))) {
329 printf("faim: rxhandlers: incompatible frame type %d on connection type 0x%04x\n", workingPtr->hdrtype, workingPtr->conn->type);
330 workingPtr->handled = 1;
331 continue;
332 }
333
b8d0da45 334 switch(workingPtr->conn->type) {
335 case -1:
336 /*
337 * This can happen if we have a queued command
338 * that was recieved after a connection has
339 * been terminated. In which case, the handler
340 * list has been cleared, and there's nothing we
341 * can do for it. We can only cancel it.
342 */
343 workingPtr->handled = 1;
344 break;
345 case AIM_CONN_TYPE_AUTH: {
5daacaa3 346 unsigned long head;
b8d0da45 347
348 head = aimutil_get32(workingPtr->data);
5daacaa3 349 if ((head == 0x00000001) && (workingPtr->commandlen == 4)) {
b8d0da45 350 faimdprintf(1, "got connection ack on auth line\n");
22517493 351 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
5daacaa3 352 } else if (workingPtr->hdr.oscar.type == 0x04) {
353 /* Used only by the older login protocol */
f0a7908e 354 workingPtr->handled = aim_authparse(sess, workingPtr);
355 } else {
5daacaa3 356 unsigned short family,subtype;
b8d0da45 357
358 family = aimutil_get16(workingPtr->data);
359 subtype = aimutil_get16(workingPtr->data+2);
360
361 switch (family) {
362 /* New login protocol */
b8d0da45 363 case 0x0017:
364 if (subtype == 0x0001)
365 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0x0001, workingPtr);
366 else if (subtype == 0x0003)
367 workingPtr->handled = aim_authparse(sess, workingPtr);
368 else if (subtype == 0x0007)
b5bc2a8c 369 workingPtr->handled = aim_authkeyparse(sess, workingPtr);
b8d0da45 370 else
371 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
372 break;
ee49b735 373 case 0x0001:
374 if (subtype == 0x0003)
375 workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
376 else
377 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
378 break;
379 case 0x0007:
380 if (subtype == 0x0005)
381 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_ADM, AIM_CB_ADM_INFOCHANGE_REPLY, workingPtr);
382 break;
383 case AIM_CB_FAM_SPECIAL:
384 if (subtype == AIM_CB_SPECIAL_DEBUGCONN_CONNECT) {
385 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
386 break;
387 } else
388 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
389 break;
390 default:
78b3fb13 391 break;
b8d0da45 392 }
393 }
394 break;
395 }
396 case AIM_CONN_TYPE_BOS: {
397 u_short family;
398 u_short subtype;
5e02cf44 399
b69540e3 400 if (workingPtr->hdr.oscar.type == 0x04) {
5e02cf44 401 workingPtr->handled = aim_negchan_middle(sess, workingPtr);
402 break;
403 }
404
b8d0da45 405 family = aimutil_get16(workingPtr->data);
406 subtype = aimutil_get16(workingPtr->data+2);
407
408 switch (family) {
409 case 0x0000: /* not really a family, but it works */
410 if (subtype == 0x0001)
22517493 411 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
b8d0da45 412 else
413 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
414 break;
415 case 0x0001: /* Family: General */
416 switch (subtype) {
417 case 0x0001:
418 workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
419 break;
420 case 0x0003:
ee49b735 421 workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
b8d0da45 422 break;
423 case 0x0005:
424 workingPtr->handled = aim_handleredirect_middle(sess, workingPtr);
425 break;
426 case 0x0007:
427 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
428 break;
429 case 0x000a:
1a8c261b 430 workingPtr->handled = aim_parse_ratechange_middle(sess, workingPtr);
b8d0da45 431 break;
432 case 0x000f:
433 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000f, workingPtr);
434 break;
98c88242 435 case 0x0010:
436 workingPtr->handled = aim_parse_evilnotify_middle(sess, workingPtr);
437 break;
b8d0da45 438 case 0x0013:
439 workingPtr->handled = aim_parsemotd_middle(sess, workingPtr);
440 break;
ee49b735 441 case 0x0018:
442 workingPtr->handled = aim_parse_hostversions(sess, workingPtr);
443 break;
b8d0da45 444 default:
445 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_GEN, AIM_CB_GEN_DEFAULT, workingPtr);
446 break;
447 }
96f8b1ed 448 break;
b8d0da45 449 case 0x0002: /* Family: Location */
450 switch (subtype) {
451 case 0x0001:
96f8b1ed 452 workingPtr->handled = aim_parse_locateerr(sess, workingPtr);
b8d0da45 453 break;
454 case 0x0003:
455 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0003, workingPtr);
456 break;
457 case 0x0006:
458 workingPtr->handled = aim_parse_userinfo_middle(sess, workingPtr);
459 break;
460 default:
461 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOC, AIM_CB_LOC_DEFAULT, workingPtr);
462 break;
463 }
96f8b1ed 464 break;
b8d0da45 465 case 0x0003: /* Family: Buddy List */
466 switch (subtype) {
467 case 0x0001:
468 workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
469 break;
470 case 0x0003:
96f8b1ed 471 workingPtr->handled = aim_parse_buddyrights(sess, workingPtr);
b8d0da45 472 break;
473 case 0x000b: /* oncoming buddy */
474 workingPtr->handled = aim_parse_oncoming_middle(sess, workingPtr);
475 break;
476 case 0x000c: /* offgoing buddy */
477 workingPtr->handled = aim_parse_offgoing_middle(sess, workingPtr);
478 break;
479 default:
480 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BUD, AIM_CB_BUD_DEFAULT, workingPtr);
481 }
482 break;
3e2c7bcf 483 case 0x0004: /* Family: Messaging */
b8d0da45 484 switch (subtype) {
485 case 0x0001:
486 workingPtr->handled = aim_parse_msgerror_middle(sess, workingPtr);
487 break;
488 case 0x0005:
489 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x0005, workingPtr);
490 break;
e5012450 491 case 0x0006:
492 workingPtr->handled = aim_parse_outgoing_im_middle(sess, workingPtr);
493 break;
b8d0da45 494 case 0x0007:
495 workingPtr->handled = aim_parse_incoming_im_middle(sess, workingPtr);
496 break;
497 case 0x000a:
96f8b1ed 498 workingPtr->handled = aim_parse_missedcall(sess, workingPtr);
b8d0da45 499 break;
1a8c261b 500 case 0x000c:
501 workingPtr->handled = aim_parse_msgack_middle(sess, workingPtr);
502 break;
b8d0da45 503 default:
504 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_MSG, AIM_CB_MSG_DEFAULT, workingPtr);
505 }
506 break;
507 case 0x0009:
508 if (subtype == 0x0001)
509 workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
510 else if (subtype == 0x0003)
96f8b1ed 511 workingPtr->handled = aim_parse_bosrights(sess, workingPtr);
b8d0da45 512 else
513 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BOS, AIM_CB_BOS_DEFAULT, workingPtr);
514 break;
515 case 0x000a: /* Family: User lookup */
516 switch (subtype) {
517 case 0x0001:
518 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000a, 0x0001, workingPtr);
519 break;
520 case 0x0003:
521 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000a, 0x0003, workingPtr);
522 break;
523 default:
524 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOK, AIM_CB_LOK_DEFAULT, workingPtr);
525 }
526 break;
96f8b1ed 527 case 0x000b: {
b8d0da45 528 if (subtype == 0x0001)
529 workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
530 else if (subtype == 0x0002)
531 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000b, 0x0002, workingPtr);
532 else
533 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_STS, AIM_CB_STS_DEFAULT, workingPtr);
534 break;
96f8b1ed 535 }
3e2c7bcf 536 case 0x0013: {
537 printf("lalala: 0x%04x/0x%04x\n", family, subtype);
538 break;
539 }
96f8b1ed 540 case AIM_CB_FAM_SPECIAL:
541 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
542 break;
b8d0da45 543 default:
544 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
545 break;
96f8b1ed 546 } /* switch(family) */
b8d0da45 547 break;
96f8b1ed 548 } /* AIM_CONN_TYPE_BOS */
b8d0da45 549 case AIM_CONN_TYPE_CHATNAV: {
550 u_short family;
551 u_short subtype;
552 family = aimutil_get16(workingPtr->data);
553 subtype= aimutil_get16(workingPtr->data+2);
22517493 554
555 if ((family == 0x0000) && (subtype == 0x00001)) {
556 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
ee49b735 557 } else if ((family == 0x0001) && (subtype == 0x0003)) {
558 workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
b8d0da45 559 } else if ((family == 0x000d) && (subtype == 0x0009)) {
560 workingPtr->handled = aim_chatnav_parse_info(sess, workingPtr);
561 } else {
562 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
9de3ca7e 563 }
b8d0da45 564 break;
565 }
566 case AIM_CONN_TYPE_CHAT: {
567 u_short family, subtype;
568
569 family = aimutil_get16(workingPtr->data);
570 subtype= aimutil_get16(workingPtr->data+2);
571
22517493 572 if ((family == 0x0000) && (subtype == 0x00001)) {
573 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
574 } else if (family == 0x0001) {
b8d0da45 575 if (subtype == 0x0001)
576 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0001, workingPtr);
577 else if (subtype == 0x0003)
ee49b735 578 workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
b8d0da45 579 else if (subtype == 0x0007)
580 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
275a2ff8 581 else if (subtype == 0x000a)
582 workingPtr->handled = aim_parse_ratechange_middle(sess, workingPtr);
b8d0da45 583 else
cd71e19b 584 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
b8d0da45 585 } else if (family == 0x000e) {
586 if (subtype == 0x0002)
587 workingPtr->handled = aim_chat_parse_infoupdate(sess, workingPtr);
588 else if (subtype == 0x0003)
589 workingPtr->handled = aim_chat_parse_joined(sess, workingPtr);
590 else if (subtype == 0x0004)
591 workingPtr->handled = aim_chat_parse_leave(sess, workingPtr);
592 else if (subtype == 0x0006)
593 workingPtr->handled = aim_chat_parse_incoming(sess, workingPtr);
594 else
595 printf("Chat: unknown snac %04x/%04x\n", family, subtype);
596 } else {
597 printf("Chat: unknown snac %04x/%04x\n", family, subtype);
598 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_CHT, AIM_CB_CHT_DEFAULT, workingPtr);
599 }
600 break;
601 }
b69540e3 602 case AIM_CONN_TYPE_RENDEZVOUS: {
603 /* make sure that we only get OFT frames on these connections */
604 if (workingPtr->hdrtype != AIM_FRAMETYPE_OFT) {
605 printf("faim: internal error: non-OFT frames on OFT connection\n");
606 workingPtr->handled = 1; /* get rid of it */
607 break;
608 }
609
610 /* XXX: implement this */
611 printf("faim: OFT frame!\n");
612
613 break;
614 }
7392c79f 615 case AIM_CONN_TYPE_RENDEZVOUS_OUT: {
616 /* not possible */
617 break;
618 }
b8d0da45 619 default:
b69540e3 620 printf("\ninternal error: unknown connection type (very bad.) (type = %d, fd = %d, commandlen = %02x)\n\n", workingPtr->conn->type, workingPtr->conn->fd, workingPtr->commandlen);
b8d0da45 621 workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
622 break;
623 }
9de3ca7e 624 }
b8d0da45 625 }
9de3ca7e 626
b8d0da45 627 /*
628 * This doesn't have to be called here. It could easily be done
629 * by a seperate thread or something. It's an administrative operation,
630 * and can take a while. Though the less you call it the less memory
631 * you'll have :)
632 */
633 aim_purge_rxqueue(sess);
9de3ca7e 634
635 return 0;
636}
637
78b3fb13 638faim_internal int aim_parse_msgack_middle(struct aim_session_t *sess, struct command_rx_struct *command)
1a8c261b 639{
640 rxcallback_t userfunc = NULL;
641 char sn[MAXSNLEN];
642 unsigned short type;
643 int i = 10+8; /* skip SNAC and cookie */
644 int ret = 1;
645 unsigned char snlen;
646
647 type = aimutil_get16(command->data+i);
648 i += 2;
649
650 snlen = aimutil_get8(command->data+i);
651 i++;
652
653 memset(sn, 0, sizeof(sn));
78b3fb13 654 strncpy(sn, (char *)command->data+i, snlen);
1a8c261b 655
656 if ((userfunc = aim_callhandler(command->conn, 0x0004, 0x000c)))
657 ret = userfunc(sess, command, type, sn);
658
659 return ret;
660}
661
d6c9fcf0 662/*
663 * The Rate Limiting System, An Abridged Guide to Nonsense.
664 *
665 * OSCAR defines several 'rate classes'. Each class has seperate
666 * rate limiting properties (limit level, alert level, disconnect
667 * level, etc), and a set of SNAC family/type pairs associated with
668 * it. The rate classes, their limiting properties, and the definitions
669 * of which SNACs are belong to which class, are defined in the
670 * Rate Response packet at login to each host.
671 *
672 * Logically, all rate offenses within one class count against further
673 * offenses for other SNACs in the same class (ie, sending messages
674 * too fast will limit the number of user info requests you can send,
675 * since those two SNACs are in the same rate class).
676 *
677 * Since the rate classes are defined dynamically at login, the values
678 * below may change. But they seem to be fairly constant.
679 *
680 * Currently, BOS defines five rate classes, with the commonly used
681 * members as follows...
682 *
683 * Rate class 0x0001:
684 * - Everything thats not in any of the other classes
685 *
686 * Rate class 0x0002:
687 * - Buddy list add/remove
688 * - Permit list add/remove
689 * - Deny list add/remove
690 *
691 * Rate class 0x0003:
692 * - User information requests
693 * - Outgoing ICBMs
694 *
695 * Rate class 0x0004:
696 * - A few unknowns: 2/9, 2/b, and f/2
697 *
698 * Rate class 0x0005:
699 * - Chat room create
700 * - Outgoing chat ICBMs
701 *
702 * The only other thing of note is that class 5 (chat) has slightly looser
703 * limiting properties than class 3 (normal messages). But thats just a
704 * small bit of trivia for you.
705 *
706 * The last thing that needs to be learned about the rate limiting
707 * system is how the actual numbers relate to the passing of time. This
708 * seems to be a big mystery.
709 *
710 */
78b3fb13 711faim_internal int aim_parse_ratechange_middle(struct aim_session_t *sess, struct command_rx_struct *command)
1a8c261b 712{
713 rxcallback_t userfunc = NULL;
1a8c261b 714 int ret = 1;
275a2ff8 715 int i;
716 int code;
d6c9fcf0 717 unsigned long rateclass, windowsize, clear, alert, limit, disconnect;
275a2ff8 718 unsigned long currentavg, maxavg;
1a8c261b 719
275a2ff8 720 i = 10;
721
722 code = aimutil_get16(command->data+i);
723 i += 2;
724
d6c9fcf0 725 rateclass = aimutil_get16(command->data+i);
275a2ff8 726 i += 2;
727
728 windowsize = aimutil_get32(command->data+i);
729 i += 4;
730 clear = aimutil_get32(command->data+i);
731 i += 4;
732 alert = aimutil_get32(command->data+i);
733 i += 4;
734 limit = aimutil_get32(command->data+i);
735 i += 4;
736 disconnect = aimutil_get32(command->data+i);
737 i += 4;
738 currentavg = aimutil_get32(command->data+i);
739 i += 4;
740 maxavg = aimutil_get32(command->data+i);
741 i += 4;
1a8c261b 742
743 if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x000a)))
d6c9fcf0 744 ret = userfunc(sess, command, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg);
1a8c261b 745
746 return ret;
747}
748
78b3fb13 749faim_internal int aim_parse_evilnotify_middle(struct aim_session_t *sess, struct command_rx_struct *command)
98c88242 750{
751 rxcallback_t userfunc = NULL;
06bc8607 752 int ret = 1;
753 int i;
754 unsigned short newevil;
755 struct aim_userinfo_s userinfo;
98c88242 756
06bc8607 757 i = 10;
758 newevil = aimutil_get16(command->data+10);
759 i += 2;
98c88242 760
06bc8607 761 memset(&userinfo, 0, sizeof(struct aim_userinfo_s));
762 if (command->commandlen-i)
763 i += aim_extractuserinfo(command->data+i, &userinfo);
98c88242 764
765 if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0010)))
06bc8607 766 ret = userfunc(sess, command, newevil, &userinfo);
98c88242 767
768 return ret;
769}
770
78b3fb13 771faim_internal int aim_parsemotd_middle(struct aim_session_t *sess,
772 struct command_rx_struct *command, ...)
9de3ca7e 773{
774 rxcallback_t userfunc = NULL;
01b59e1e 775 char *msg;
776 int ret=1;
777 struct aim_tlvlist_t *tlvlist;
778 u_short id;
779
780 /*
98c88242 781 * Code.
782 *
783 * Valid values:
784 * 1 Mandatory upgrade
785 * 2 Advisory upgrade
786 * 3 System bulletin
787 * 4 Nothing's wrong ("top o the world" -- normal)
788 *
01b59e1e 789 */
790 id = aimutil_get16(command->data+10);
791
792 /*
793 * TLVs follow
794 */
b13c9e13 795 if (!(tlvlist = aim_readtlvchain(command->data+12, command->commandlen-12)))
796 return ret;
797
798 if (!(msg = aim_gettlv_str(tlvlist, 0x000b, 1))) {
799 aim_freetlvchain(&tlvlist);
800 return ret;
801 }
01b59e1e 802
803 userfunc = aim_callhandler(command->conn, 0x0001, 0x0013);
804 if (userfunc)
805 ret = userfunc(sess, command, id, msg);
9de3ca7e 806
01b59e1e 807 aim_freetlvchain(&tlvlist);
b13c9e13 808 free(msg);
9de3ca7e 809
b13c9e13 810 return ret;
9de3ca7e 811}
812
ee49b735 813faim_internal int aim_parse_hostonline(struct aim_session_t *sess,
814 struct command_rx_struct *command, ...)
815{
816 rxcallback_t userfunc = NULL;
817 int ret = 1;
818 unsigned short *families = NULL;
819 int famcount = 0, i;
820
821 famcount = (command->commandlen-10)/2;
822 if (!(families = malloc(command->commandlen-10)))
823 return ret;
824
825 for (i = 0; i < famcount; i++)
826 families[i] = aimutil_get16(command->data+((i*2)+10));
827
828 if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0003)))
829 ret = userfunc(sess, command, famcount, families);
830
831 free(families);
832
833 return ret;
834}
835
836faim_internal int aim_parse_hostversions(struct aim_session_t *sess,
837 struct command_rx_struct *command, ...)
838{
839 rxcallback_t userfunc = NULL;
840 int ret = 1;
841 int vercount;
842
843 vercount = (command->commandlen-10)/4;
844
845 if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0018)))
846 ret = userfunc(sess, command, vercount, command->data+10);
847
848 return ret;
849}
850
78b3fb13 851faim_internal int aim_handleredirect_middle(struct aim_session_t *sess,
ee49b735 852 struct command_rx_struct *command, ...)
9de3ca7e 853{
1ea867e3 854 int serviceid = 0;
855 unsigned char *cookie = NULL;
9de3ca7e 856 char *ip = NULL;
857 rxcallback_t userfunc = NULL;
01b59e1e 858 struct aim_tlvlist_t *tlvlist;
859 int ret = 1;
860
1ea867e3 861 tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
862
863 if (aim_gettlv(tlvlist, 0x000d, 1))
864 serviceid = aim_gettlv16(tlvlist, 0x000d, 1);
865 if (aim_gettlv(tlvlist, 0x0005, 1))
866 ip = aim_gettlv_str(tlvlist, 0x0005, 1);
867 if (aim_gettlv(tlvlist, 0x0006, 1))
868 cookie = aim_gettlv_str(tlvlist, 0x0006, 1);
869
870 if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) {
871
872 /*
873 * Chat hack.
874 *
875 */
876 if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0005)))
877 ret = userfunc(sess, command, serviceid, ip, cookie, sess->pendingjoin, (int)sess->pendingjoinexchange);
0c20631f 878 free(sess->pendingjoin);
879 sess->pendingjoin = NULL;
9f20a4e3 880 sess->pendingjoinexchange = 0;
1ea867e3 881 } else if (!serviceid || !ip || !cookie) { /* yeep! */
882 ret = 1;
883 } else {
884 if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0005)))
885 ret = userfunc(sess, command, serviceid, ip, cookie);
886 }
887
888 if (ip)
889 free(ip);
890 if (cookie)
891 free(cookie);
0e2be272 892
01b59e1e 893 aim_freetlvchain(&tlvlist);
894
895 return ret;
9de3ca7e 896}
897
78b3fb13 898faim_internal int aim_parse_unknown(struct aim_session_t *sess,
899 struct command_rx_struct *command, ...)
9de3ca7e 900{
901 u_int i = 0;
902
22517493 903 if (!sess || !command)
904 return 1;
905
b8d0da45 906 faimdprintf(1, "\nRecieved unknown packet:");
9de3ca7e 907
908 for (i = 0; i < command->commandlen; i++)
909 {
910 if ((i % 8) == 0)
71e609e9 911 faimdprintf(1, "\n\t");
9de3ca7e 912
71e609e9 913 faimdprintf(1, "0x%2x ", command->data[i]);
9de3ca7e 914 }
915
b1a4ea45 916 faimdprintf(1, "\n\n");
9de3ca7e 917
918 return 1;
919}
920
921
78b3fb13 922faim_internal int aim_negchan_middle(struct aim_session_t *sess,
923 struct command_rx_struct *command)
5e02cf44 924{
925 struct aim_tlvlist_t *tlvlist;
926 char *msg = NULL;
927 unsigned short code = 0;
5e02cf44 928 rxcallback_t userfunc = NULL;
929 int ret = 1;
930
931 tlvlist = aim_readtlvchain(command->data, command->commandlen);
932
1ea867e3 933 if (aim_gettlv(tlvlist, 0x0009, 1))
934 code = aim_gettlv16(tlvlist, 0x0009, 1);
5e02cf44 935
1ea867e3 936 if (aim_gettlv(tlvlist, 0x000b, 1))
5e02cf44 937 msg = aim_gettlv_str(tlvlist, 0x000b, 1);
938
1ea867e3 939 if ((userfunc = aim_callhandler(command->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_CONNERR)))
5e02cf44 940 ret = userfunc(sess, command, code, msg);
941
942 aim_freetlvchain(&tlvlist);
1ea867e3 943
944 if (msg)
945 free(msg);
5e02cf44 946
947 return ret;
948}
949
9de3ca7e 950/*
951 * aim_parse_generalerrs()
952 *
953 * Middle handler for 0x0001 snac of each family.
954 *
955 */
78b3fb13 956faim_internal int aim_parse_generalerrs(struct aim_session_t *sess,
957 struct command_rx_struct *command, ...)
9de3ca7e 958{
1449ad2b 959 unsigned short family;
960 unsigned short subtype;
961 int ret = 1;
962 int error = 0;
963 rxcallback_t userfunc = NULL;
a25832e6 964
965 family = aimutil_get16(command->data+0);
966 subtype= aimutil_get16(command->data+2);
9de3ca7e 967
1449ad2b 968 if (command->commandlen > 10)
969 error = aimutil_get16(command->data+10);
9de3ca7e 970
1449ad2b 971 if ((userfunc = aim_callhandler(command->conn, family, subtype)))
972 ret = userfunc(sess, command, error);
973
974 return ret;
9de3ca7e 975}
976
977
978
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