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9de3ca7e | 1 | /* |
2 | * aim_im.c | |
3 | * | |
4 | * The routines for sending/receiving Instant Messages. | |
5 | * | |
6ae3c48d | 6 | * Note the term ICBM (Inter-Client Basic Message) which blankets |
7 | * all types of genericly routed through-server messages. Within | |
8 | * the ICBM types (family 4), a channel is defined. Each channel | |
9 | * represents a different type of message. Channel 1 is used for | |
10 | * what would commonly be called an "instant message". Channel 2 | |
11 | * is used for negotiating "rendezvous". These transactions end in | |
12 | * something more complex happening, such as a chat invitation, or | |
13 | * a file transfer. | |
14 | * | |
15 | * In addition to the channel, every ICBM contains a cookie. For | |
16 | * standard IMs, these are only used for error messages. However, | |
17 | * the more complex rendezvous messages make suitably more complex | |
18 | * use of this field. | |
19 | * | |
9de3ca7e | 20 | */ |
21 | ||
37ee990e | 22 | #define FAIM_INTERNAL |
dd60ff8b | 23 | #include <aim.h> |
9de3ca7e | 24 | |
9d83220c | 25 | /* |
26 | * Takes a msghdr (and a length) and returns a client type | |
27 | * code. Note that this is *only a guess* and has a low likelihood | |
28 | * of actually being accurate. | |
29 | * | |
30 | * Its based on experimental data, with the help of Eric Warmenhoven | |
31 | * who seems to have collected a wide variety of different AIM clients. | |
32 | * | |
33 | * | |
34 | * Heres the current collection: | |
35 | * 0501 0003 0101 0101 01 AOL Mobile Communicator, WinAIM 1.0.414 | |
36 | * 0501 0003 0101 0201 01 WinAIM 2.0.847, 2.1.1187, 3.0.1464, | |
37 | * 4.3.2229, 4.4.2286 | |
38 | * 0501 0004 0101 0102 0101 WinAIM 4.1.2010, libfaim (right here) | |
39 | * 0501 0001 0101 01 AOL v6.0, CompuServe 2000 v6.0, any | |
40 | * TOC client | |
41 | */ | |
42 | faim_export unsigned short aim_fingerprintclient(unsigned char *msghdr, int len) | |
43 | { | |
6ae3c48d | 44 | static const struct { |
45 | unsigned short clientid; | |
46 | int len; | |
47 | unsigned char data[10]; | |
48 | } fingerprints[] = { | |
49 | /* AOL Mobile Communicator, WinAIM 1.0.414 */ | |
50 | { AIM_CLIENTTYPE_MC, | |
51 | 9, {0x05, 0x01, 0x00, 0x03, 0x01, 0x01, 0x01, 0x01, 0x01}}, | |
52 | ||
53 | /* WinAIM 2.0.847, 2.1.1187, 3.0.1464, 4.3.2229, 4.4.2286 */ | |
54 | { AIM_CLIENTTYPE_WINAIM, | |
55 | 9, {0x05, 0x01, 0x00, 0x03, 0x01, 0x01, 0x02, 0x01, 0x01}}, | |
56 | ||
57 | /* WinAIM 4.1.2010, libfaim */ | |
58 | { AIM_CLIENTTYPE_WINAIM41, | |
59 | 10, {0x05, 0x01, 0x00, 0x04, 0x01, 0x01, 0x01, 0x02, 0x01, 0x01}}, | |
60 | ||
61 | /* AOL v6.0, CompuServe 2000 v6.0, any TOC client */ | |
62 | { AIM_CLIENTTYPE_AOL_TOC, | |
63 | 7, {0x05, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01}}, | |
64 | ||
65 | { 0, 0} | |
66 | }; | |
67 | int i; | |
68 | ||
69 | if (!msghdr || (len <= 0)) | |
70 | return AIM_CLIENTTYPE_UNKNOWN; | |
71 | ||
72 | for (i = 0; fingerprints[i].len; i++) { | |
73 | if (fingerprints[i].len != len) | |
74 | continue; | |
75 | if (memcmp(fingerprints[i].data, msghdr, fingerprints[i].len) == 0) | |
76 | return fingerprints[i].clientid; | |
77 | } | |
78 | ||
79 | return AIM_CLIENTTYPE_UNKNOWN; | |
9d83220c | 80 | } |
81 | ||
50038c74 | 82 | /* This should be endian-safe now... but who knows... */ |
83 | faim_export unsigned short aim_iconsum(const unsigned char *buf, int buflen) | |
84 | { | |
6ae3c48d | 85 | unsigned long sum; |
86 | int i; | |
50038c74 | 87 | |
6ae3c48d | 88 | for (i = 0, sum = 0; i < buflen; i += 2) |
89 | sum += (buf[i+1] << 8) + buf[i]; | |
50038c74 | 90 | |
6ae3c48d | 91 | sum = ((sum & 0xffff0000) >> 16) + (sum & 0x0000ffff); |
50038c74 | 92 | |
6ae3c48d | 93 | return sum & 0xffff; |
50038c74 | 94 | } |
95 | ||
9de3ca7e | 96 | /* |
97 | * Send an ICBM (instant message). | |
98 | * | |
99 | * | |
100 | * Possible flags: | |
101 | * AIM_IMFLAGS_AWAY -- Marks the message as an autoresponse | |
102 | * AIM_IMFLAGS_ACK -- Requests that the server send an ack | |
103 | * when the message is received (of type 0x0004/0x000c) | |
7b91722d | 104 | * AIM_IMFLAGS_UNICODE--Instead of ASCII7, the passed message is |
105 | * made up of UNICODE duples. If you set | |
106 | * this, you'd better be damn sure you know | |
107 | * what you're doing. | |
108 | * AIM_IMFLAGS_ISO_8859_1 -- The message contains the ASCII8 subset | |
109 | * known as ISO-8859-1. | |
110 | * | |
111 | * Generally, you should use the lowest encoding possible to send | |
112 | * your message. If you only use basic punctuation and the generic | |
113 | * Latin alphabet, use ASCII7 (no flags). If you happen to use non-ASCII7 | |
114 | * characters, but they are all clearly defined in ISO-8859-1, then | |
115 | * use that. Keep in mind that not all characters in the PC ASCII8 | |
116 | * character set are defined in the ISO standard. For those cases (most | |
117 | * notably when the (r) symbol is used), you must use the full UNICODE | |
118 | * encoding for your message. In UNICODE mode, _all_ characters must | |
119 | * occupy 16bits, including ones that are not special. (Remember that | |
120 | * the first 128 UNICODE symbols are equivelent to ASCII7, however they | |
121 | * must be prefixed with a zero high order byte.) | |
122 | * | |
123 | * I strongly discourage the use of UNICODE mode, mainly because none | |
124 | * of the clients I use can parse those messages (and besides that, | |
125 | * wchars are difficult and non-portable to handle in most UNIX environments). | |
126 | * If you really need to include special characters, use the HTML UNICODE | |
127 | * entities. These are of the form ߪ where 2026 is the hex | |
128 | * representation of the UNICODE index (in this case, UNICODE | |
129 | * "Horizontal Ellipsis", or 133 in in ASCII8). | |
9de3ca7e | 130 | * |
9de3ca7e | 131 | */ |
2d5fd943 | 132 | faim_export int aim_send_im_ext(struct aim_session_t *sess, struct aim_conn_t *conn, struct aim_sendimext_args *args) |
a2244dd9 | 133 | { |
2d5fd943 | 134 | int curbyte,i; |
135 | struct command_tx_struct *newpacket; | |
136 | ||
137 | if (!sess || !conn || !args) | |
138 | return -EINVAL; | |
139 | ||
140 | if (!args->msg || (args->msglen <= 0)) | |
141 | return -EINVAL; | |
142 | ||
143 | if (args->msglen >= MAXMSGLEN) | |
144 | return -E2BIG; | |
145 | ||
146 | if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, args->msglen+512))) | |
147 | return -ENOMEM; | |
148 | ||
149 | newpacket->lock = 1; /* lock struct */ | |
150 | ||
151 | curbyte = 0; | |
152 | curbyte += aim_putsnac(newpacket->data+curbyte, | |
153 | 0x0004, 0x0006, 0x0000, sess->snac_nextid); | |
154 | ||
155 | /* | |
156 | * Generate a random message cookie | |
157 | * | |
158 | * We could cache these like we do SNAC IDs. (In fact, it | |
159 | * might be a good idea.) In the message error functions, | |
160 | * the 8byte message cookie is returned as well as the | |
161 | * SNAC ID. | |
162 | * | |
163 | */ | |
164 | for (i = 0; i < 8; i++) { | |
165 | curbyte += aimutil_put8(newpacket->data+curbyte, | |
166 | (unsigned char) rand()); | |
167 | } | |
168 | ||
169 | /* | |
170 | * Channel ID | |
171 | */ | |
172 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
173 | ||
174 | /* | |
175 | * Destination SN (prepended with byte length) | |
176 | */ | |
177 | curbyte += aimutil_put8(newpacket->data+curbyte, strlen(args->destsn)); | |
178 | curbyte += aimutil_putstr(newpacket->data+curbyte, | |
179 | args->destsn, strlen(args->destsn)); | |
180 | ||
181 | /* | |
182 | * metaTLV start. | |
183 | */ | |
184 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
185 | curbyte += aimutil_put16(newpacket->data+curbyte, args->msglen + 0x10); | |
186 | ||
187 | /* | |
188 | * Flag data / ICBM Parameters? | |
189 | * | |
190 | * I don't know what these are... | |
191 | * | |
192 | */ | |
193 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x05); | |
194 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
195 | ||
196 | /* number of bytes to follow */ | |
197 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0004); | |
198 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
199 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
200 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x01); | |
201 | curbyte += aimutil_put8(newpacket->data+curbyte, 0x02); | |
202 | ||
203 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0101); | |
204 | ||
205 | /* | |
206 | * Message block length. | |
207 | */ | |
208 | curbyte += aimutil_put16(newpacket->data+curbyte, args->msglen + 0x04); | |
209 | ||
210 | /* | |
211 | * Character set. | |
212 | */ | |
213 | if (args->flags & AIM_IMFLAGS_UNICODE) | |
214 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
215 | else if (args->flags & AIM_IMFLAGS_ISO_8859_1) | |
216 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003); | |
217 | else | |
218 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
219 | ||
220 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
221 | ||
222 | /* | |
223 | * Message. Not terminated. | |
224 | */ | |
225 | curbyte += aimutil_putstr(newpacket->data+curbyte, | |
226 | args->msg, args->msglen); | |
227 | ||
228 | /* | |
229 | * Set the Request Acknowledge flag. | |
230 | */ | |
231 | if (args->flags & AIM_IMFLAGS_ACK) { | |
232 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0003); | |
233 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
234 | } | |
49c8a2fa | 235 | |
2d5fd943 | 236 | /* |
237 | * Set the Autoresponse flag. | |
238 | */ | |
239 | if (args->flags & AIM_IMFLAGS_AWAY) { | |
240 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0004); | |
241 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
242 | } | |
243 | ||
244 | /* | |
245 | * Set the Buddy Icon Requested flag. | |
246 | */ | |
247 | if (args->flags & AIM_IMFLAGS_BUDDYREQ) { | |
248 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0009); | |
249 | curbyte += aimutil_put16(newpacket->data+curbyte,0x0000); | |
250 | } | |
251 | ||
252 | /* | |
253 | * Set the I HAVE A REALLY PURTY ICON flag (with timestamp). | |
254 | */ | |
255 | if (args->flags & AIM_IMFLAGS_HASICON) { | |
256 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0008); | |
257 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x000c); | |
258 | curbyte += aimutil_put32(newpacket->data+curbyte, args->iconlen); | |
259 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
260 | curbyte += aimutil_put16(newpacket->data+curbyte, args->iconsum); | |
261 | curbyte += aimutil_put32(newpacket->data+curbyte, args->iconstamp); | |
262 | } | |
263 | ||
264 | newpacket->commandlen = curbyte; | |
265 | newpacket->lock = 0; | |
266 | ||
267 | aim_tx_enqueue(sess, newpacket); | |
49c8a2fa | 268 | |
7b91722d | 269 | #if 1 /* XXX do this with autoconf or something... */ |
2d5fd943 | 270 | aim_cachesnac(sess, 0x0004, 0x0006, 0x0000, args->destsn, strlen(args->destsn)+1); |
271 | aim_cleansnacs(sess, 60); /* clean out all SNACs over 60sec old */ | |
7b91722d | 272 | #endif |
9de3ca7e | 273 | |
2d5fd943 | 274 | return 0; |
9de3ca7e | 275 | } |
276 | ||
7b91722d | 277 | /* |
278 | * Simple wrapper for aim_send_im_ext() | |
279 | * | |
280 | * You cannot use aim_send_im if you need the HASICON flag. You must | |
281 | * use aim_send_im_ext directly for that. | |
282 | * | |
283 | * aim_send_im also cannot be used if you require UNICODE messages, because | |
284 | * that requires an explicit message length. Use aim_send_im_ext(). | |
285 | * | |
286 | */ | |
2d5fd943 | 287 | faim_export int aim_send_im(struct aim_session_t *sess, struct aim_conn_t *conn, const char *destsn, unsigned short flags, const char *msg) |
7b91722d | 288 | { |
2d5fd943 | 289 | struct aim_sendimext_args args; |
7b91722d | 290 | |
2d5fd943 | 291 | args.destsn = destsn; |
292 | args.flags = flags; | |
293 | args.msg = msg; | |
294 | args.msglen = strlen(msg); | |
7b91722d | 295 | |
2d5fd943 | 296 | return aim_send_im_ext(sess, conn, &args); |
7b91722d | 297 | } |
298 | ||
50038c74 | 299 | faim_export int aim_send_icon(struct aim_session_t *sess, struct aim_conn_t *conn, const char *sn, const unsigned char *icon, int iconlen, time_t stamp, unsigned short iconsum) |
7b91722d | 300 | { |
6ae3c48d | 301 | struct command_tx_struct *np; |
302 | int i, curbyte = 0; | |
303 | unsigned char ck[8]; | |
304 | ||
305 | if (!sess || !conn || !sn || !icon || | |
306 | (iconlen <= 0) || (iconlen >= MAXICONLEN)) | |
307 | return -EINVAL; | |
308 | ||
309 | if (conn->type != AIM_CONN_TYPE_BOS) | |
310 | return -EINVAL; | |
311 | ||
312 | for (i = 0, curbyte = 0; i < 8; i++) | |
313 | curbyte += aimutil_put8(ck+curbyte, (u_char)rand()); | |
314 | ||
315 | if (!(np = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(sn)+2+2+2+8+16+2+2+2+2+2+2+2+4+4+4+iconlen+strlen(AIM_ICONIDENT)+2+2))) | |
316 | return -ENOMEM; | |
317 | ||
318 | np->lock = 1; | |
319 | ||
320 | curbyte = aim_putsnac(np->data, 0x0004, 0x0006, 0x0000, sess->snac_nextid); | |
321 | ||
322 | /* | |
323 | * Cookie | |
324 | */ | |
325 | memcpy(np->data+curbyte, ck, 8); | |
326 | curbyte += 8; | |
327 | ||
328 | /* | |
329 | * Channel (2) | |
330 | */ | |
331 | curbyte += aimutil_put16(np->data+curbyte, 0x0002); | |
332 | ||
333 | /* | |
334 | * Dest sn | |
335 | */ | |
336 | curbyte += aimutil_put8(np->data+curbyte, strlen(sn)); | |
337 | curbyte += aimutil_putstr(np->data+curbyte, sn, strlen(sn)); | |
338 | ||
339 | /* | |
340 | * TLV t(0005) | |
341 | */ | |
342 | curbyte += aimutil_put16(np->data+curbyte, 0x0005); | |
343 | curbyte += aimutil_put16(np->data+curbyte, 2+8+16+6+4+4+iconlen+4+4+4+strlen(AIM_ICONIDENT)); | |
344 | ||
345 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
346 | ||
347 | memcpy(np->data+curbyte, ck, 8); | |
348 | curbyte += 8; | |
7b91722d | 349 | |
6ae3c48d | 350 | curbyte += aim_putcap(np->data+curbyte, 16, AIM_CAPS_BUDDYICON); |
351 | ||
352 | /* TLV t(000a) */ | |
353 | curbyte += aimutil_put16(np->data+curbyte, 0x000a); | |
354 | curbyte += aimutil_put16(np->data+curbyte, 0x0002); | |
355 | curbyte += aimutil_put16(np->data+curbyte, 0x0001); | |
356 | ||
357 | /* TLV t(000f) */ | |
358 | curbyte += aimutil_put16(np->data+curbyte, 0x000f); | |
359 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
360 | ||
361 | /* TLV t(2711) */ | |
362 | curbyte += aimutil_put16(np->data+curbyte, 0x2711); | |
363 | curbyte += aimutil_put16(np->data+curbyte, 4+4+4+iconlen+strlen(AIM_ICONIDENT)); | |
364 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
365 | curbyte += aimutil_put16(np->data+curbyte, iconsum); | |
366 | curbyte += aimutil_put32(np->data+curbyte, iconlen); | |
367 | curbyte += aimutil_put32(np->data+curbyte, stamp); | |
368 | memcpy(np->data+curbyte, icon, iconlen); | |
369 | curbyte += iconlen; | |
370 | memcpy(np->data+curbyte, AIM_ICONIDENT, strlen(AIM_ICONIDENT)); | |
371 | curbyte += strlen(AIM_ICONIDENT); | |
372 | ||
373 | /* TLV t(0003) */ | |
374 | curbyte += aimutil_put16(np->data+curbyte, 0x0003); | |
375 | curbyte += aimutil_put16(np->data+curbyte, 0x0000); | |
376 | ||
377 | np->commandlen = curbyte; | |
378 | np->lock = 0; | |
379 | aim_tx_enqueue(sess, np); | |
380 | ||
381 | return 0; | |
7b91722d | 382 | } |
383 | ||
00ef5271 | 384 | static int outgoingim(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) |
e5012450 | 385 | { |
6ae3c48d | 386 | unsigned int i, ret = 0; |
387 | aim_rxcallback_t userfunc; | |
388 | unsigned char cookie[8]; | |
389 | int channel; | |
390 | struct aim_tlvlist_t *tlvlist; | |
391 | char sn[MAXSNLEN]; | |
392 | unsigned short icbmflags = 0; | |
393 | unsigned char flag1 = 0, flag2 = 0; | |
394 | unsigned char *msgblock = NULL, *msg = NULL; | |
395 | ||
396 | /* ICBM Cookie. */ | |
397 | for (i = 0; i < 8; i++) | |
398 | cookie[i] = aimutil_get8(data+i); | |
399 | ||
400 | /* Channel ID */ | |
401 | channel = aimutil_get16(data+i); | |
402 | i += 2; | |
403 | ||
404 | if (channel != 0x01) { | |
405 | faimdprintf(sess, 0, "icbm: ICBM recieved on unsupported channel. Ignoring. (chan = %04x)\n", channel); | |
406 | return 1; | |
407 | } | |
408 | ||
409 | strncpy(sn, (char *) data+i+1, (int) *(data+i)); | |
410 | i += 1 + (int) *(data+i); | |
411 | ||
412 | tlvlist = aim_readtlvchain(data+i, datalen-i); | |
413 | ||
414 | if (aim_gettlv(tlvlist, 0x0003, 1)) | |
415 | icbmflags |= AIM_IMFLAGS_ACK; | |
416 | if (aim_gettlv(tlvlist, 0x0004, 1)) | |
417 | icbmflags |= AIM_IMFLAGS_AWAY; | |
e5012450 | 418 | |
6ae3c48d | 419 | if ((msgblock = (unsigned char *)aim_gettlv_str(tlvlist, 0x0002, 1))) { |
420 | int j = 0; | |
421 | ||
422 | /* no, this really is correct. I'm not high or anything either. */ | |
423 | j += 2; | |
424 | j += 2 + aimutil_get16(msgblock+j); | |
425 | j += 2; | |
426 | ||
427 | j += 2; /* final block length */ | |
428 | ||
429 | flag1 = aimutil_get16(msgblock); | |
430 | j += 2; | |
431 | flag2 = aimutil_get16(msgblock); | |
432 | j += 2; | |
433 | ||
434 | msg = msgblock+j; | |
435 | } | |
436 | ||
437 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
438 | ret = userfunc(sess, rx, channel, sn, msg, icbmflags, flag1, flag2); | |
439 | ||
440 | free(msgblock); | |
441 | aim_freetlvchain(&tlvlist); | |
442 | ||
443 | return ret; | |
00ef5271 | 444 | } |
445 | ||
6ae3c48d | 446 | /* |
447 | * A multipart IM: | |
448 | * | |
449 | * 0004 0007 0000 8f08 d295 | |
450 | * 0031 6520 3b7b f9fd | |
451 | * 0001 | |
452 | * 06 XXXX XXXX XXXX | |
453 | * 0000 | |
454 | * 0004 | |
455 | * 0001 0002 0004 | |
456 | * 0010 0004 0000 01a3 | |
457 | * 0002 0004 3ab6 94fa | |
458 | * 0003 0004 3b7b f85a | |
459 | * 0002 003c | |
460 | * 0501 0001 01 | |
461 | * 0101 000a 0000 0000 3c48 544d 4c3e ASCII part | |
462 | * ISO-8859 part: | |
463 | * 0101 0016 0003 0000 6c6b 7364 6a6b 6c6a 676c a56b 3b73 646a 6b6a | |
464 | * 0101 000b 0000 0000 3c2f 4854 4d4c 3e another ASCII part | |
465 | * | |
466 | */ | |
7b91722d | 467 | static int incomingim_ch1(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned short channel, struct aim_userinfo_s *userinfo, unsigned char *data, int datalen, unsigned char *cookie) |
00ef5271 | 468 | { |
1dcd23dd | 469 | unsigned short type, length; |
470 | aim_rxcallback_t userfunc; | |
471 | int i, ret = 0; | |
472 | struct aim_incomingim_ch1_args args; | |
00ef5271 | 473 | |
1dcd23dd | 474 | memset(&args, 0, sizeof(args)); |
00ef5271 | 475 | |
1dcd23dd | 476 | /* |
477 | * This used to be done using tlvchains. For performance reasons, | |
478 | * I've changed it to process the TLVs in-place. This avoids lots | |
479 | * of per-IM memory allocations. | |
480 | */ | |
481 | for (i = 0; i < datalen; ) { | |
482 | ||
483 | type = aimutil_get16(data+i); | |
484 | i += 2; | |
485 | ||
486 | length = aimutil_get16(data+i); | |
487 | i += 2; | |
488 | ||
489 | if (type == 0x0002) { /* Message Block */ | |
490 | unsigned short wastebits; | |
491 | unsigned char *msgblock; | |
492 | int j = 0, y = 0, z = 0; | |
493 | ||
494 | msgblock = data+i; | |
495 | ||
496 | /* | |
497 | * Extracting the message from the unknown cruft. | |
498 | * | |
499 | * This is a bit messy, and I'm not really qualified, | |
500 | * even as the author, to comment on it. At least | |
501 | * its not as bad as a while loop shooting into | |
502 | * infinity. | |
503 | * | |
504 | * "Do you believe in magic?" | |
505 | * | |
506 | */ | |
507 | ||
508 | wastebits = aimutil_get8(msgblock+j++); | |
509 | wastebits = aimutil_get8(msgblock+j++); | |
510 | ||
511 | y = aimutil_get16(msgblock+j); | |
512 | j += 2; | |
513 | for (z = 0; z < y; z++) | |
514 | wastebits = aimutil_get8(msgblock+j++); | |
515 | wastebits = aimutil_get8(msgblock+j++); | |
516 | wastebits = aimutil_get8(msgblock+j++); | |
517 | ||
518 | args.finlen = j; | |
519 | if (args.finlen > sizeof(args.fingerprint)) | |
520 | args.finlen = sizeof(args.fingerprint); | |
521 | memcpy(args.fingerprint, msgblock, args.finlen); | |
522 | ||
523 | /* Message string length, including flag words. */ | |
524 | args.msglen = aimutil_get16(msgblock+j); | |
525 | j += 2; | |
526 | ||
527 | /* Flag words. */ | |
528 | args.flag1 = aimutil_get16(msgblock+j); | |
529 | if (args.flag1 == 0x0000) | |
530 | ; /* ASCII */ | |
531 | else if (args.flag1 == 0x0002) | |
532 | args.icbmflags |= AIM_IMFLAGS_UNICODE; | |
533 | else if (args.flag1 == 0x0003) | |
534 | args.icbmflags |= AIM_IMFLAGS_ISO_8859_1; | |
535 | else if (args.flag1 == 0xffff) | |
536 | ; /* no encoding (yeep!) */ | |
537 | j += 2; | |
538 | ||
539 | args.flag2 = aimutil_get16(msgblock+j); | |
540 | if (args.flag2 == 0x0000) | |
541 | ; /* standard subencoding? */ | |
542 | else if (args.flag2 == 0x000b) | |
543 | args.icbmflags |= AIM_IMFLAGS_SUBENC_MACINTOSH; | |
544 | else if (args.flag2 == 0xffff) | |
545 | ; /* no subencoding */ | |
546 | j += 2; | |
547 | ||
548 | if ( ((args.flag1 != 0x0000) && | |
549 | (args.flag1 != 0x0002) && | |
550 | (args.flag1 != 0x0003) && | |
551 | (args.flag1 != 0xffff)) || | |
552 | ((args.flag2 != 0x0000) && | |
553 | (args.flag2 != 0x000b) && | |
554 | (args.flag2 != 0xffff))) { | |
555 | faimdprintf(sess, 0, "icbm: **warning: encoding flags are being used! {%04x, %04x}\n", args.flag1, args.flag2); | |
556 | } | |
557 | ||
558 | /* Message string. */ | |
559 | args.msglen -= 4; | |
560 | if (args.icbmflags & AIM_IMFLAGS_UNICODE) { | |
561 | args.msg = malloc(args.msglen+2); | |
562 | memcpy(args.msg, msgblock+j, args.msglen); | |
563 | args.msg[args.msglen] = '\0'; /* wide NULL */ | |
564 | args.msg[args.msglen+1] = '\0'; | |
565 | } else { | |
566 | args.msg = malloc(args.msglen+1); | |
567 | memcpy(args.msg, msgblock+j, args.msglen); | |
568 | args.msg[args.msglen] = '\0'; | |
569 | } | |
570 | ||
571 | } else if (type == 0x0003) { /* Server Ack Requested */ | |
572 | ||
573 | args.icbmflags |= AIM_IMFLAGS_ACK; | |
574 | ||
575 | } else if (type == 0x0004) { /* Message is Auto Response */ | |
576 | ||
577 | args.icbmflags |= AIM_IMFLAGS_AWAY; | |
578 | ||
579 | } else if ((type == 0x0008) && (length == 0x000c)) { /* I-HAVE-A-REALLY-PURTY-ICON Flag */ | |
580 | ||
581 | args.iconstamp = aimutil_get32(data+i+8); | |
582 | args.icbmflags |= AIM_IMFLAGS_HASICON; | |
583 | ||
584 | } else if (type == 0x0009) { | |
585 | ||
586 | args.icbmflags |= AIM_IMFLAGS_BUDDYREQ; | |
587 | ||
588 | } else if (type == 0x0017) { | |
589 | ||
590 | args.extdatalen = length; | |
591 | args.extdata = data+i; | |
592 | ||
593 | } else { | |
6ae3c48d | 594 | faimdprintf(sess, 0, "incomingim_ch1: unknown TLV 0x%04x (len %d)\n", type, length); |
1dcd23dd | 595 | } |
596 | ||
597 | i += length; | |
598 | } | |
00ef5271 | 599 | |
00ef5271 | 600 | |
1dcd23dd | 601 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
602 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
00ef5271 | 603 | |
1dcd23dd | 604 | free(args.msg); |
00ef5271 | 605 | |
1dcd23dd | 606 | return ret; |
00ef5271 | 607 | } |
608 | ||
609 | static int incomingim_ch2(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned short channel, struct aim_userinfo_s *userinfo, struct aim_tlvlist_t *tlvlist, unsigned char *cookie) | |
610 | { | |
6ae3c48d | 611 | aim_rxcallback_t userfunc; |
612 | struct aim_tlv_t *block1; | |
613 | struct aim_tlvlist_t *list2; | |
614 | int ret = 0; | |
615 | struct aim_incomingim_ch2_args args; | |
616 | ||
617 | memset(&args, 0, sizeof(args)); | |
618 | ||
619 | /* | |
620 | * There's another block of TLVs embedded in the type 5 here. | |
621 | */ | |
355229fe | 622 | if (!(block1 = aim_gettlv(tlvlist, 0x0005, 1)) || !block1->value) { |
6ae3c48d | 623 | faimdprintf(sess, 0, "no tlv 0x0005 in rendezvous transaction!\n"); |
624 | return 0; | |
625 | } | |
626 | ||
627 | /* | |
628 | * First two bytes represent the status of the connection. | |
629 | * | |
630 | * 0 is a request, 2 is an accept | |
631 | */ | |
632 | args.status = aimutil_get16(block1->value+0); | |
633 | ||
634 | /* | |
635 | * Next comes the cookie. Should match the ICBM cookie. | |
636 | */ | |
637 | if (memcmp(block1->value+2, cookie, 8) != 0) | |
638 | faimdprintf(sess, 0, "rend: warning cookies don't match!\n"); | |
639 | ||
640 | /* | |
641 | * The next 16bytes are a capability block so we can | |
642 | * identify what type of rendezvous this is. | |
643 | * | |
644 | * Thanks to Eric Warmenhoven <warmenhoven@linux.com> (of GAIM) | |
645 | * for pointing some of this out to me. In fact, a lot of | |
646 | * the client-to-client info comes from the work of the GAIM | |
647 | * developers. Thanks! | |
648 | * | |
649 | * Read off one capability string and we should have it ID'd. | |
650 | * | |
651 | */ | |
652 | if ((args.reqclass = aim_getcap(sess, block1->value+2+8, 0x10)) == 0x0000) { | |
653 | faimdprintf(sess, 0, "rend: no ID block\n"); | |
654 | return 0; | |
655 | } | |
656 | ||
657 | /* | |
658 | * What follows may be TLVs or nothing, depending on the | |
659 | * purpose of the message. | |
660 | * | |
661 | * Ack packets for instance have nothing more to them. | |
662 | */ | |
663 | list2 = aim_readtlvchain(block1->value+2+8+16, block1->length-2-8-16); | |
664 | ||
665 | if (!list2 || ((args.reqclass != AIM_CAPS_IMIMAGE) && !(aim_gettlv(list2, 0x2711, 1)))) { | |
666 | struct aim_msgcookie_t *cook; | |
667 | int type; | |
668 | ||
669 | type = aim_msgcookie_gettype(args.reqclass); /* XXX: fix this shitty code */ | |
670 | ||
671 | if ((cook = aim_checkcookie(sess, cookie, type)) == NULL) { | |
672 | faimdprintf(sess, 0, "non-data rendezvous thats not in cache (type %d)\n", type); | |
673 | aim_freetlvchain(&list2); | |
674 | return 1; | |
675 | } | |
676 | ||
677 | if (cook->type == AIM_COOKIETYPE_OFTGET) { | |
678 | struct aim_filetransfer_priv *ft; | |
679 | ||
680 | if (cook->data) { | |
681 | int errorcode = -1; /* XXX shouldnt this be 0? */ | |
682 | ||
683 | ft = (struct aim_filetransfer_priv *)cook->data; | |
684 | ||
685 | if (args.status != 0x0002) { | |
686 | ||
687 | if (aim_gettlv(list2, 0x000b, 1)) | |
688 | errorcode = aim_gettlv16(list2, 0x000b, 1); | |
689 | ||
690 | /* XXX this should make it up to the client, you know.. */ | |
691 | if (errorcode) | |
692 | faimdprintf(sess, 0, "transfer from %s (%s) for %s cancelled (error code %d)\n", ft->sn, ft->ip, ft->fh.name, errorcode); | |
693 | } /* args.status != 0x0002 */ | |
694 | ||
695 | } else { | |
696 | faimdprintf(sess, 0, "no data attached to file transfer\n"); | |
697 | } /* !cook->data */ | |
698 | ||
699 | } else if (cook->type == AIM_CAPS_VOICE) { | |
700 | ||
701 | faimdprintf(sess, 0, "voice request cancelled\n"); | |
702 | ||
703 | } else { | |
704 | ||
705 | faimdprintf(sess, 0, "unknown cookie cache type %d\n", cook->type); | |
706 | } | |
707 | ||
708 | aim_freetlvchain(&list2); | |
709 | ||
710 | return 1; | |
00ef5271 | 711 | } |
6ae3c48d | 712 | |
713 | /* | |
714 | * The rest of the handling depends on what type it is. | |
715 | */ | |
716 | if (args.reqclass & AIM_CAPS_BUDDYICON) { | |
717 | struct aim_tlv_t *miscinfo; | |
718 | int curpos = 0; | |
719 | ||
720 | miscinfo = aim_gettlv(list2, 0x2711, 1); | |
721 | ||
722 | /* aimutil_get32(miscinfo->value+curpos); i don't know what this is */ | |
723 | curpos += 4; | |
724 | args.info.icon.length = aimutil_get32(miscinfo->value+curpos); | |
725 | curpos += 4; | |
726 | args.info.icon.timestamp = aimutil_get32(miscinfo->value+curpos); | |
727 | curpos += 4; | |
728 | args.info.icon.icon = malloc(args.info.icon.length); | |
729 | memcpy(args.info.icon.icon, miscinfo->value+curpos, args.info.icon.length); | |
730 | ||
731 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
732 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
733 | ||
734 | free(args.info.icon.icon); | |
735 | ||
736 | } else if (args.reqclass & AIM_CAPS_VOICE) { | |
737 | struct aim_msgcookie_t *cachedcook; | |
738 | ||
739 | faimdprintf(sess, 1, "rend: voice!\n"); | |
740 | ||
741 | if(!(cachedcook = (struct aim_msgcookie_t*)calloc(1, sizeof(struct aim_msgcookie_t)))) { | |
742 | aim_freetlvchain(&list2); | |
743 | return 0; | |
744 | } | |
745 | ||
746 | memcpy(cachedcook->cookie, cookie, 8); | |
747 | cachedcook->type = AIM_COOKIETYPE_OFTVOICE; | |
748 | cachedcook->data = NULL; | |
749 | ||
750 | if (aim_cachecookie(sess, cachedcook) == -1) | |
751 | faimdprintf(sess, 0, "ERROR caching message cookie\n"); | |
752 | ||
753 | /* XXX: implement all this */ | |
754 | ||
755 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
756 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
757 | ||
758 | } else if (args.reqclass & AIM_CAPS_IMIMAGE) { | |
759 | char ip[30]; | |
760 | struct aim_directim_priv *priv; | |
761 | ||
762 | memset(ip, 0, sizeof(ip)); | |
763 | ||
764 | if (aim_gettlv(list2, 0x0003, 1) && aim_gettlv(list2, 0x0005, 1)) { | |
765 | struct aim_tlv_t *iptlv, *porttlv; | |
766 | ||
767 | iptlv = aim_gettlv(list2, 0x0003, 1); | |
768 | porttlv = aim_gettlv(list2, 0x0005, 1); | |
769 | ||
770 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
771 | aimutil_get8(iptlv->value+0), | |
772 | aimutil_get8(iptlv->value+1), | |
773 | aimutil_get8(iptlv->value+2), | |
774 | aimutil_get8(iptlv->value+3), | |
775 | 4443 /*aimutil_get16(porttlv->value)*/); | |
776 | } | |
777 | ||
778 | faimdprintf(sess, 1, "rend: directIM request from %s (%s)\n", | |
779 | userinfo->sn, ip); | |
780 | ||
781 | /* | |
782 | * XXX: there are a couple of different request packets for | |
783 | * different things | |
784 | */ | |
785 | ||
786 | args.info.directim = priv = (struct aim_directim_priv *)calloc(1, sizeof(struct aim_directim_priv)); /* XXX error */ | |
787 | memcpy(priv->ip, ip, sizeof(priv->ip)); | |
788 | memcpy(priv->sn, userinfo->sn, sizeof(priv->sn)); | |
789 | memcpy(priv->cookie, cookie, sizeof(priv->cookie)); | |
790 | ||
791 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
792 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
793 | ||
794 | } else if (args.reqclass & AIM_CAPS_CHAT) { | |
795 | struct aim_tlv_t *miscinfo; | |
796 | ||
797 | miscinfo = aim_gettlv(list2, 0x2711, 1); | |
798 | aim_chat_readroominfo(miscinfo->value, &args.info.chat.roominfo); | |
799 | ||
800 | if (aim_gettlv(list2, 0x000c, 1)) | |
801 | args.info.chat.msg = aim_gettlv_str(list2, 0x000c, 1); | |
802 | ||
803 | if (aim_gettlv(list2, 0x000d, 1)) | |
804 | args.info.chat.encoding = aim_gettlv_str(list2, 0x000d, 1); | |
805 | ||
806 | if (aim_gettlv(list2, 0x000e, 1)) | |
807 | args.info.chat.lang = aim_gettlv_str(list2, 0x000e, 1); | |
808 | ||
809 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
810 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
811 | ||
812 | free(args.info.chat.roominfo.name); | |
813 | free(args.info.chat.msg); | |
814 | free(args.info.chat.encoding); | |
815 | free(args.info.chat.lang); | |
816 | ||
817 | } else if (args.reqclass & AIM_CAPS_GETFILE) { | |
818 | char ip[30]; | |
819 | struct aim_msgcookie_t *cachedcook; | |
820 | struct aim_tlv_t *miscinfo; | |
821 | struct aim_tlv_t *iptlv, *porttlv; | |
822 | ||
823 | memset(ip, 0, 30); | |
824 | ||
825 | if (!(cachedcook = calloc(1, sizeof(struct aim_msgcookie_t)))) { | |
826 | aim_freetlvchain(&list2); | |
827 | return 0; | |
828 | } | |
829 | ||
830 | if (!(miscinfo = aim_gettlv(list2, 0x2711, 1)) || | |
831 | !(iptlv = aim_gettlv(list2, 0x0003, 1)) || | |
832 | !(porttlv = aim_gettlv(list2, 0x0005, 1))) { | |
833 | ||
834 | faimdprintf(sess, 0, "rend: badly damaged file get request from %s...\n", userinfo->sn); | |
835 | aim_cookie_free(sess, cachedcook); | |
836 | aim_freetlvchain(&list2); | |
837 | ||
838 | return 0; | |
839 | } | |
840 | ||
841 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
842 | aimutil_get8(iptlv->value+0), | |
843 | aimutil_get8(iptlv->value+1), | |
844 | aimutil_get8(iptlv->value+2), | |
845 | aimutil_get8(iptlv->value+3), | |
846 | aimutil_get16(porttlv->value)); | |
847 | ||
848 | faimdprintf(sess, 0, "rend: file get request from %s (%s)\n", userinfo->sn, ip); | |
849 | ||
850 | args.info.getfile.ip = ip; | |
851 | args.info.getfile.cookie = cookie; | |
852 | ||
853 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
854 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
855 | ||
856 | } else if (args.reqclass & AIM_CAPS_SENDFILE) { | |
857 | #if 0 | |
858 | char ip[30]; | |
859 | struct aim_msgcookie_t *cachedcook; | |
860 | struct aim_tlv_t *miscinfo; | |
861 | struct aim_tlv_t *iptlv, *porttlv; | |
862 | ||
863 | memset(ip, 0, 30); | |
864 | ||
865 | if (!(cachedcook = calloc(1, sizeof(struct aim_msgcookie_t)))) { | |
866 | aim_freetlvchain(&list2); | |
867 | return 0; | |
868 | } | |
869 | ||
870 | if (!(miscinfo = aim_gettlv(list2, 0x2711, 1)) || | |
871 | !(iptlv = aim_gettlv(list2, 0x0003, 1)) || | |
872 | !(porttlv = aim_gettlv(list2, 0x0005, 1))) { | |
873 | ||
874 | faimdprintf(sess, 0, "rend: badly damaged file get request from %s...\n", userinfo->sn); | |
875 | aim_cookie_free(sess, cachedcook); | |
876 | aim_freetlvchain(&list2); | |
877 | ||
878 | return 0; | |
879 | } | |
880 | ||
881 | snprintf(ip, 30, "%d.%d.%d.%d:%d", | |
882 | aimutil_get8(iptlv->value+0), | |
883 | aimutil_get8(iptlv->value+1), | |
884 | aimutil_get8(iptlv->value+2), | |
885 | aimutil_get8(iptlv->value+3), | |
886 | aimutil_get16(porttlv->value)); | |
887 | ||
888 | if (aim_gettlv(list2, 0x000c, 1)) | |
889 | desc = aim_gettlv_str(list2, 0x000c, 1); | |
890 | ||
891 | faimdprintf(sess, 0, "rend: file transfer request from %s: %s (%s)\n", | |
892 | userinfo->sn, desc, ip); | |
893 | ||
894 | memcpy(cachedcook->cookie, cookie, 8); | |
895 | ||
896 | ft = malloc(sizeof(struct aim_filetransfer_priv)); /* XXX */ | |
897 | strncpy(ft->sn, userinfo.sn, sizeof(ft->sn)); | |
898 | strncpy(ft->ip, ip, sizeof(ft->ip)); | |
899 | strncpy(ft->fh.name, miscinfo->value+8, sizeof(ft->fh.name)); | |
900 | cachedcook->type = AIM_COOKIETYPE_OFTSEND; | |
901 | cachedcook->data = ft; | |
902 | ||
903 | if (aim_cachecookie(sess, cachedcook) == -1) | |
904 | faimdprintf(sess, 0, "ERROR caching message cookie\n"); | |
905 | ||
906 | aim_accepttransfer(sess, rx->conn, ft->sn, cookie, AIM_CAPS_SENDFILE); | |
907 | ||
908 | if (desc) | |
909 | free(desc); | |
910 | ||
911 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
912 | ret = userfunc(sess, rx, channel, userinfo, &args); | |
00ef5271 | 913 | |
914 | #endif | |
6ae3c48d | 915 | } else |
916 | faimdprintf(sess, 0, "rend: unknown rendezvous 0x%04x\n", args.reqclass); | |
00ef5271 | 917 | |
6ae3c48d | 918 | aim_freetlvchain(&list2); |
00ef5271 | 919 | |
6ae3c48d | 920 | return ret; |
e5012450 | 921 | } |
922 | ||
49c8a2fa | 923 | /* |
924 | * It can easily be said that parsing ICBMs is THE single | |
925 | * most difficult thing to do in the in AIM protocol. In | |
926 | * fact, I think I just did say that. | |
927 | * | |
928 | * Below is the best damned solution I've come up with | |
929 | * over the past sixteen months of battling with it. This | |
930 | * can parse both away and normal messages from every client | |
931 | * I have access to. Its not fast, its not clean. But it works. | |
932 | * | |
49c8a2fa | 933 | */ |
00ef5271 | 934 | static int incomingim(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) |
9de3ca7e | 935 | { |
6ae3c48d | 936 | int i, ret = 0; |
937 | unsigned char cookie[8]; | |
938 | int channel; | |
939 | struct aim_userinfo_s userinfo; | |
940 | ||
941 | memset(&userinfo, 0x00, sizeof(struct aim_userinfo_s)); | |
942 | ||
943 | /* | |
944 | * Read ICBM Cookie. And throw away. | |
945 | */ | |
946 | for (i = 0; i < 8; i++) | |
947 | cookie[i] = aimutil_get8(data+i); | |
948 | ||
949 | /* | |
950 | * Channel ID. | |
951 | * | |
952 | * Channel 0x0001 is the message channel. There are | |
953 | * other channels for things called "rendevous" | |
954 | * which represent chat and some of the other new | |
955 | * features of AIM2/3/3.5. | |
956 | * | |
957 | * Channel 0x0002 is the Rendevous channel, which | |
958 | * is where Chat Invitiations and various client-client | |
959 | * connection negotiations come from. | |
960 | * | |
961 | */ | |
962 | channel = aimutil_get16(data+i); | |
963 | i += 2; | |
964 | ||
965 | /* | |
966 | * Technically Channel 3 in chat could be done here too. | |
967 | */ | |
968 | if ((channel != 0x01) && (channel != 0x02)) { | |
969 | faimdprintf(sess, 0, "icbm: ICBM received on an unsupported channel. Ignoring.\n (chan = %04x)", channel); | |
970 | return 1; | |
971 | } | |
972 | ||
973 | /* | |
974 | * Extract the standard user info block. | |
975 | * | |
976 | * Note that although this contains TLVs that appear contiguous | |
977 | * with the TLVs read below, they are two different pieces. The | |
978 | * userinfo block contains the number of TLVs that contain user | |
979 | * information, the rest are not even though there is no seperation. | |
980 | * aim_extractuserinfo() returns the number of bytes used by the | |
981 | * userinfo tlvs, so you can start reading the rest of them right | |
982 | * afterward. | |
983 | * | |
984 | * That also means that TLV types can be duplicated between the | |
985 | * userinfo block and the rest of the message, however there should | |
986 | * never be two TLVs of the same type in one block. | |
987 | * | |
988 | */ | |
989 | i += aim_extractuserinfo(sess, data+i, &userinfo); | |
990 | ||
991 | /* | |
992 | * From here on, its depends on what channel we're on. | |
993 | * | |
994 | * Technically all channels have a TLV list have this, however, | |
995 | * for the common channel 1 case, in-place parsing is used for | |
996 | * performance reasons (less memory allocation). | |
997 | */ | |
998 | if (channel == 1) { | |
999 | ||
1000 | ret = incomingim_ch1(sess, mod, rx, snac, channel, &userinfo, data+i, datalen-i, cookie); | |
1001 | ||
1002 | } else if (channel == 0x0002) { | |
1003 | struct aim_tlvlist_t *tlvlist; | |
1004 | ||
1005 | /* | |
1006 | * Read block of TLVs (not including the userinfo data). All | |
1007 | * further data is derived from what is parsed here. | |
1008 | */ | |
1009 | tlvlist = aim_readtlvchain(data+i, datalen-i); | |
1010 | ||
1011 | ret = incomingim_ch2(sess, mod, rx, snac, channel, &userinfo, tlvlist, cookie); | |
1012 | ||
1013 | /* | |
1014 | * Free up the TLV chain. | |
1015 | */ | |
1016 | aim_freetlvchain(&tlvlist); | |
1017 | } | |
1018 | ||
1019 | return ret; | |
49c8a2fa | 1020 | } |
1021 | ||
040457cc | 1022 | /* |
1023 | * Possible codes: | |
1024 | * AIM_TRANSFER_DENY_NOTSUPPORTED -- "client does not support" | |
1025 | * AIM_TRANSFER_DENY_DECLINE -- "client has declined transfer" | |
1026 | * AIM_TRANSFER_DENY_NOTACCEPTING -- "client is not accepting transfers" | |
1027 | * | |
1028 | */ | |
6ae3c48d | 1029 | faim_export int aim_denytransfer(struct aim_session_t *sess, |
1030 | struct aim_conn_t *conn, | |
1031 | const char *sender, | |
1032 | const char *cookie, | |
1033 | unsigned short code) | |
040457cc | 1034 | { |
6ae3c48d | 1035 | struct command_tx_struct *newpacket; |
1036 | int curbyte, i; | |
040457cc | 1037 | |
6ae3c48d | 1038 | if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+8+2+1+strlen(sender)+6))) |
1039 | return -ENOMEM; | |
040457cc | 1040 | |
6ae3c48d | 1041 | newpacket->lock = 1; |
040457cc | 1042 | |
6ae3c48d | 1043 | curbyte = aim_putsnac(newpacket->data, 0x0004, 0x000b, 0x0000, sess->snac_nextid++); |
1044 | for (i = 0; i < 8; i++) | |
1045 | curbyte += aimutil_put8(newpacket->data+curbyte, cookie[i]); | |
1046 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); | |
1047 | curbyte += aimutil_put8(newpacket->data+curbyte, strlen(sender)); | |
1048 | curbyte += aimutil_putstr(newpacket->data+curbyte, sender, strlen(sender)); | |
1049 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0003, code); | |
040457cc | 1050 | |
6ae3c48d | 1051 | newpacket->lock = 0; |
1052 | aim_tx_enqueue(sess, newpacket); | |
040457cc | 1053 | |
6ae3c48d | 1054 | return 0; |
040457cc | 1055 | } |
1056 | ||
49c8a2fa | 1057 | /* |
355229fe | 1058 | * aim_reqicbmparaminfo() |
49c8a2fa | 1059 | * |
355229fe | 1060 | * Request ICBM parameter information. |
49c8a2fa | 1061 | * |
1062 | */ | |
355229fe | 1063 | faim_export unsigned long aim_reqicbmparams(struct aim_session_t *sess, struct aim_conn_t *conn) |
1064 | { | |
1065 | return aim_genericreq_n(sess, conn, 0x0004, 0x0004); | |
1066 | } | |
1067 | ||
1068 | /* | |
1069 | * | |
1070 | */ | |
1071 | faim_export unsigned long aim_seticbmparam(struct aim_session_t *sess, struct aim_conn_t *conn, struct aim_icbmparameters *params) | |
49c8a2fa | 1072 | { |
6ae3c48d | 1073 | struct command_tx_struct *newpacket; |
1074 | int curbyte; | |
49c8a2fa | 1075 | |
355229fe | 1076 | if (!sess || !conn || !params) |
1077 | return -EINVAL; | |
1078 | ||
6ae3c48d | 1079 | if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+16))) |
1080 | return -ENOMEM; | |
5b79dc93 | 1081 | |
6ae3c48d | 1082 | newpacket->lock = 1; |
5b79dc93 | 1083 | |
6ae3c48d | 1084 | curbyte = aim_putsnac(newpacket->data, 0x0004, 0x0002, 0x0000, sess->snac_nextid++); |
355229fe | 1085 | |
1086 | /* This is read-only (in Parameter Reply). Must be set to zero here. */ | |
1087 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); | |
1088 | ||
1089 | /* These are all read-write */ | |
1090 | curbyte += aimutil_put32(newpacket->data+curbyte, params->flags); | |
1091 | curbyte += aimutil_put16(newpacket->data+curbyte, params->maxmsglen); | |
1092 | curbyte += aimutil_put16(newpacket->data+curbyte, params->maxsenderwarn); | |
1093 | curbyte += aimutil_put16(newpacket->data+curbyte, params->maxrecverwarn); | |
1094 | curbyte += aimutil_put32(newpacket->data+curbyte, params->minmsginterval); | |
5b79dc93 | 1095 | |
6ae3c48d | 1096 | newpacket->lock = 0; |
1097 | aim_tx_enqueue(sess, newpacket); | |
a25832e6 | 1098 | |
6ae3c48d | 1099 | return 0; |
a25832e6 | 1100 | } |
1101 | ||
00ef5271 | 1102 | static int paraminfo(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) |
a25832e6 | 1103 | { |
355229fe | 1104 | struct aim_icbmparameters params; |
6ae3c48d | 1105 | aim_rxcallback_t userfunc; |
1106 | int i = 0; | |
a25832e6 | 1107 | |
355229fe | 1108 | params.maxchan = aimutil_get16(data+i); |
6ae3c48d | 1109 | i += 2; |
a25832e6 | 1110 | |
355229fe | 1111 | params.flags = aimutil_get32(data+i); |
6ae3c48d | 1112 | i += 4; |
96f8b1ed | 1113 | |
355229fe | 1114 | params.maxmsglen = aimutil_get16(data+i); |
6ae3c48d | 1115 | i += 2; |
a25832e6 | 1116 | |
355229fe | 1117 | params.maxsenderwarn = aimutil_get16(data+i); |
6ae3c48d | 1118 | i += 2; |
49c8a2fa | 1119 | |
355229fe | 1120 | params.maxrecverwarn = aimutil_get16(data+i); |
6ae3c48d | 1121 | i += 2; |
e6b05d80 | 1122 | |
355229fe | 1123 | params.minmsginterval = aimutil_get32(data+i); |
6ae3c48d | 1124 | i += 4; |
e6b05d80 | 1125 | |
6ae3c48d | 1126 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
355229fe | 1127 | return userfunc(sess, rx, ¶ms); |
00ef5271 | 1128 | |
6ae3c48d | 1129 | return 0; |
00ef5271 | 1130 | } |
1131 | ||
1132 | static int missedcall(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
96f8b1ed | 1133 | { |
36a61e0d | 1134 | int i, ret = 0; |
6ae3c48d | 1135 | aim_rxcallback_t userfunc; |
1136 | unsigned short channel, nummissed, reason; | |
1137 | struct aim_userinfo_s userinfo; | |
36a61e0d | 1138 | |
1139 | for (i = 0; i < datalen; ) { | |
96f8b1ed | 1140 | |
36a61e0d | 1141 | /* Channel ID. */ |
1142 | channel = aimutil_get16(data+i); | |
1143 | i += 2; | |
6ae3c48d | 1144 | |
36a61e0d | 1145 | /* Extract the standard user info block. */ |
1146 | i += aim_extractuserinfo(sess, data+i, &userinfo); | |
6ae3c48d | 1147 | |
36a61e0d | 1148 | nummissed = aimutil_get16(data+i); |
1149 | i += 2; | |
6ae3c48d | 1150 | |
36a61e0d | 1151 | reason = aimutil_get16(data+i); |
1152 | i += 2; | |
6ae3c48d | 1153 | |
36a61e0d | 1154 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
1155 | ret = userfunc(sess, rx, channel, &userinfo, nummissed, reason); | |
1156 | } | |
6ae3c48d | 1157 | |
36a61e0d | 1158 | return ret; |
00ef5271 | 1159 | } |
1160 | ||
1161 | static int msgack(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
1162 | { | |
6ae3c48d | 1163 | aim_rxcallback_t userfunc; |
1164 | char sn[MAXSNLEN]; | |
1165 | unsigned char ck[8]; | |
1166 | unsigned short type; | |
1167 | int i = 0; | |
1168 | unsigned char snlen; | |
00ef5271 | 1169 | |
6ae3c48d | 1170 | memcpy(ck, data, 8); |
1171 | i += 8; | |
00ef5271 | 1172 | |
6ae3c48d | 1173 | type = aimutil_get16(data+i); |
1174 | i += 2; | |
00ef5271 | 1175 | |
6ae3c48d | 1176 | snlen = aimutil_get8(data+i); |
1177 | i++; | |
00ef5271 | 1178 | |
6ae3c48d | 1179 | memset(sn, 0, sizeof(sn)); |
1180 | strncpy(sn, (char *)data+i, snlen); | |
00ef5271 | 1181 | |
6ae3c48d | 1182 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
1183 | return userfunc(sess, rx, type, sn); | |
00ef5271 | 1184 | |
6ae3c48d | 1185 | return 0; |
00ef5271 | 1186 | } |
1187 | ||
1188 | static int snachandler(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
1189 | { | |
1190 | ||
6ae3c48d | 1191 | if (snac->subtype == 0x0005) |
1192 | return paraminfo(sess, mod, rx, snac, data, datalen); | |
1193 | else if (snac->subtype == 0x0006) | |
1194 | return outgoingim(sess, mod, rx, snac, data, datalen); | |
1195 | else if (snac->subtype == 0x0007) | |
1196 | return incomingim(sess, mod, rx, snac, data, datalen); | |
1197 | else if (snac->subtype == 0x000a) | |
1198 | return missedcall(sess, mod, rx, snac, data, datalen); | |
1199 | else if (snac->subtype == 0x000c) | |
1200 | return msgack(sess, mod, rx, snac, data, datalen); | |
1201 | ||
1202 | return 0; | |
00ef5271 | 1203 | } |
1204 | ||
1205 | faim_internal int msg_modfirst(struct aim_session_t *sess, aim_module_t *mod) | |
1206 | { | |
1207 | ||
6ae3c48d | 1208 | mod->family = 0x0004; |
1209 | mod->version = 0x0000; | |
1210 | mod->flags = 0; | |
1211 | strncpy(mod->name, "messaging", sizeof(mod->name)); | |
1212 | mod->snachandler = snachandler; | |
00ef5271 | 1213 | |
6ae3c48d | 1214 | return 0; |
96f8b1ed | 1215 | } |