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Commit | Line | Data |
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9de3ca7e | 1 | /* |
2 | * aim_login.c | |
3 | * | |
4 | * This contains all the functions needed to actually login. | |
5 | * | |
6 | */ | |
7 | ||
37ee990e | 8 | #define FAIM_INTERNAL |
dd60ff8b | 9 | #include <aim.h> |
9de3ca7e | 10 | |
b5bc2a8c | 11 | #include "md5.h" |
12 | ||
5daacaa3 | 13 | static int aim_encode_password(const char *password, unsigned char *encoded); |
9de3ca7e | 14 | |
78b3fb13 | 15 | faim_export int aim_sendconnack(struct aim_session_t *sess, |
16 | struct aim_conn_t *conn) | |
01b59e1e | 17 | { |
18 | int curbyte=0; | |
19 | ||
5b79dc93 | 20 | struct command_tx_struct *newpacket; |
01b59e1e | 21 | |
646c6b52 | 22 | if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0001, 4))) |
01b59e1e | 23 | return -1; |
24 | ||
5b79dc93 | 25 | newpacket->lock = 1; |
01b59e1e | 26 | |
5b79dc93 | 27 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); |
28 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
01b59e1e | 29 | |
5b79dc93 | 30 | newpacket->lock = 0; |
31 | return aim_tx_enqueue(sess, newpacket); | |
01b59e1e | 32 | } |
33 | ||
01b59e1e | 34 | /* |
35 | * In AIM 3.5 protocol, the first stage of login is to request | |
36 | * login from the Authorizer, passing it the screen name | |
37 | * for verification. If the name is invalid, a 0017/0003 | |
38 | * is spit back, with the standard error contents. If valid, | |
39 | * a 0017/0007 comes back, which is the signal to send | |
40 | * it the main login command (0017/0002). | |
41 | */ | |
78b3fb13 | 42 | faim_export int aim_request_login(struct aim_session_t *sess, |
43 | struct aim_conn_t *conn, | |
44 | char *sn) | |
01b59e1e | 45 | { |
5daacaa3 | 46 | int curbyte; |
5b79dc93 | 47 | struct command_tx_struct *newpacket; |
01b59e1e | 48 | |
5daacaa3 | 49 | if (!sess || !conn || !sn) |
50 | return -1; | |
51 | ||
52 | /* | |
53 | * For ICQ, we enable the ancient horrible login and stuff | |
54 | * a key packet into the queue to make it look like we got | |
55 | * a reply back. This is so the client doesn't know we're | |
56 | * really not doing MD5 login. | |
57 | * | |
58 | * This may sound stupid, but I'm not in the best of moods and | |
59 | * I don't plan to keep support for this crap around much longer. | |
60 | * Its all AOL's fault anyway, really. I hate AOL. Really. They | |
61 | * always seem to be able to piss me off by doing the dumbest little | |
62 | * things. Like disabling MD5 logins for ICQ UINs, or adding purposefully | |
63 | * wrong TLV lengths, or adding superfluous information to host strings, | |
64 | * or... I'll stop. | |
65 | * | |
66 | */ | |
67 | if ((sn[0] >= '0') && (sn[0] <= '9')) { | |
68 | struct command_rx_struct *newrx; | |
69 | int i; | |
70 | ||
71 | if (!(newrx = (struct command_rx_struct *)malloc(sizeof(struct command_rx_struct)))) | |
72 | return -1; | |
73 | memset(newrx, 0x00, sizeof(struct command_rx_struct)); | |
74 | newrx->lock = 1; | |
75 | newrx->hdrtype = AIM_FRAMETYPE_OSCAR; | |
76 | newrx->hdr.oscar.type = 0x02; | |
77 | newrx->hdr.oscar.seqnum = 0; | |
78 | newrx->commandlen = 10+2+1; | |
79 | newrx->nofree = 0; | |
80 | if (!(newrx->data = malloc(newrx->commandlen))) { | |
81 | free(newrx); | |
82 | return -1; | |
83 | } | |
84 | ||
85 | i = aim_putsnac(newrx->data, 0x0017, 0x0007, 0x0000, 0x0000); | |
86 | i += aimutil_put16(newrx->data+i, 0x01); | |
87 | i += aimutil_putstr(newrx->data+i, "0", 1); | |
88 | ||
89 | newrx->conn = conn; | |
90 | ||
91 | newrx->next = sess->queue_incoming; | |
92 | sess->queue_incoming = newrx; | |
93 | ||
94 | newrx->lock = 0; | |
95 | ||
22517493 | 96 | sess->flags &= ~AIM_SESS_FLAGS_SNACLOGIN; |
97 | ||
5daacaa3 | 98 | return 0; |
99 | } | |
100 | ||
22517493 | 101 | sess->flags |= AIM_SESS_FLAGS_SNACLOGIN; |
5daacaa3 | 102 | |
103 | aim_sendconnack(sess, conn); | |
104 | ||
646c6b52 | 105 | if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+2+2+strlen(sn)))) |
5b79dc93 | 106 | return -1; |
01b59e1e | 107 | |
5b79dc93 | 108 | newpacket->lock = 1; |
01b59e1e | 109 | |
5daacaa3 | 110 | curbyte = aim_putsnac(newpacket->data, 0x0017, 0x0006, 0x0000, 0x00010000); |
5b79dc93 | 111 | curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn); |
01b59e1e | 112 | |
5daacaa3 | 113 | newpacket->commandlen = curbyte; |
5b79dc93 | 114 | newpacket->lock = 0; |
5daacaa3 | 115 | |
5b79dc93 | 116 | return aim_tx_enqueue(sess, newpacket); |
01b59e1e | 117 | } |
01b59e1e | 118 | |
9de3ca7e | 119 | /* |
24286d93 | 120 | * send_login(int socket, char *sn, char *password) |
9de3ca7e | 121 | * |
122 | * This is the initial login request packet. | |
123 | * | |
124 | * The password is encoded before transmition, as per | |
125 | * encode_password(). See that function for their | |
126 | * stupid method of doing it. | |
127 | * | |
355982c5 | 128 | * Latest WinAIM: |
129 | * clientstring = "AOL Instant Messenger (SM), version 4.3.2188/WIN32" | |
130 | * major2 = 0x0109 | |
131 | * major = 0x0400 | |
132 | * minor = 0x0003 | |
133 | * minor2 = 0x0000 | |
134 | * build = 0x088c | |
135 | * unknown = 0x00000086 | |
136 | * lang = "en" | |
137 | * country = "us" | |
138 | * unknown4a = 0x01 | |
154b4093 | 139 | * |
140 | * Latest WinAIM that libfaim can emulate without server-side buddylists: | |
141 | * clientstring = "AOL Instant Messenger (SM), version 3.5.1670/WIN32" | |
142 | * major2 = 0x0004 | |
143 | * major = 0x0003 | |
144 | * minor = 0x0005 | |
145 | * minor2 = 0x0000 | |
146 | * build = 0x0686 | |
147 | * unknown =0x0000002a | |
148 | * | |
d32954e7 | 149 | * Java AIM 1.1.19: |
150 | * clientstring = "AOL Instant Messenger (TM) version 1.1.19 for Java built 03/24/98, freeMem 215871 totalMem 1048567, i686, Linus, #2 SMP Sun Feb 11 03:41:17 UTC 2001 2.4.1-ac9, IBM Corporation, 1.1.8, 45.3, Tue Mar 27 12:09:17 PST 2001" | |
151 | * major2 = 0x0001 | |
152 | * major = 0x0001 | |
153 | * minor = 0x0001 | |
154 | * minor2 = (not sent) | |
155 | * build = 0x0013 | |
156 | * unknown= (not sent) | |
157 | * | |
158 | * AIM for Linux 1.1.112: | |
159 | * clientstring = "AOL Instant Messenger (SM)" | |
160 | * major2 = 0x1d09 | |
161 | * major = 0x0001 | |
162 | * minor = 0x0001 | |
163 | * minor2 = 0x0001 | |
164 | * build = 0x0070 | |
165 | * unknown= 0x0000008b | |
166 | * serverstore = 0x01 | |
167 | * | |
9de3ca7e | 168 | */ |
78b3fb13 | 169 | faim_export int aim_send_login (struct aim_session_t *sess, |
170 | struct aim_conn_t *conn, | |
171 | char *sn, char *password, | |
172 | struct client_info_s *clientinfo, | |
173 | char *key) | |
9de3ca7e | 174 | { |
9de3ca7e | 175 | int curbyte=0; |
5b79dc93 | 176 | struct command_tx_struct *newpacket; |
9de3ca7e | 177 | |
01b59e1e | 178 | if (!clientinfo || !sn || !password) |
179 | return -1; | |
180 | ||
646c6b52 | 181 | if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 1152))) |
5b79dc93 | 182 | return -1; |
9de3ca7e | 183 | |
5b79dc93 | 184 | newpacket->lock = 1; |
01b59e1e | 185 | |
22517493 | 186 | newpacket->hdr.oscar.type = (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)?0x02:0x01; |
b5bc2a8c | 187 | |
22517493 | 188 | if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) |
5daacaa3 | 189 | curbyte = aim_putsnac(newpacket->data, 0x0017, 0x0002, 0x0000, 0x00010000); |
190 | else { | |
191 | curbyte = aimutil_put16(newpacket->data, 0x0000); | |
192 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
193 | } | |
b5bc2a8c | 194 | |
5daacaa3 | 195 | curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn); |
9de3ca7e | 196 | |
22517493 | 197 | if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) { |
9f1a4013 | 198 | unsigned char digest[16]; |
5daacaa3 | 199 | |
200 | aim_encode_password_md5(password, key, digest); | |
201 | curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0025, 16, (char *)digest); | |
202 | } else { | |
203 | char *password_encoded; | |
204 | ||
205 | password_encoded = (char *) malloc(strlen(password)); | |
206 | aim_encode_password(password, password_encoded); | |
207 | curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0002, strlen(password), password_encoded); | |
208 | free(password_encoded); | |
209 | } | |
210 | ||
e80a0fa9 | 211 | curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring); |
13ebc4c4 | 212 | |
22517493 | 213 | if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) { |
154b4093 | 214 | |
5daacaa3 | 215 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, (unsigned short)clientinfo->major2); |
216 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, (unsigned short)clientinfo->major); | |
217 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, (unsigned short)clientinfo->minor); | |
218 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, (unsigned short)clientinfo->minor2); | |
219 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, (unsigned short)clientinfo->build); | |
b5bc2a8c | 220 | |
5daacaa3 | 221 | } else { |
355982c5 | 222 | /* Use very specific version numbers, to further indicate the hack. */ |
5daacaa3 | 223 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, 0x010a); |
224 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, 0x0004); | |
225 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, 0x003c); | |
226 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, 0x0001); | |
227 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, 0x0cce); | |
228 | curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, 0x00000055); | |
229 | } | |
9de3ca7e | 230 | |
e80a0fa9 | 231 | curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country); |
232 | curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang); | |
13ebc4c4 | 233 | |
e80a0fa9 | 234 | if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) { |
235 | curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown); | |
236 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015); | |
237 | } | |
238 | ||
13ebc4c4 | 239 | newpacket->commandlen = curbyte; |
9de3ca7e | 240 | |
5b79dc93 | 241 | newpacket->lock = 0; |
242 | return aim_tx_enqueue(sess, newpacket); | |
9de3ca7e | 243 | } |
9de3ca7e | 244 | |
9f1a4013 | 245 | faim_export int aim_encode_password_md5(const char *password, const char *key, unsigned char *digest) |
b5bc2a8c | 246 | { |
247 | md5_state_t state; | |
248 | ||
249 | md5_init(&state); | |
250 | md5_append(&state, (const md5_byte_t *)key, strlen(key)); | |
251 | md5_append(&state, (const md5_byte_t *)password, strlen(password)); | |
252 | md5_append(&state, (const md5_byte_t *)AIM_MD5_STRING, strlen(AIM_MD5_STRING)); | |
253 | md5_finish(&state, (md5_byte_t *)digest); | |
254 | ||
255 | return 0; | |
256 | } | |
257 | ||
5daacaa3 | 258 | /** |
259 | * aim_encode_password - Encode a password using old XOR method | |
260 | * @password: incoming password | |
261 | * @encoded: buffer to put encoded password | |
9de3ca7e | 262 | * |
263 | * This takes a const pointer to a (null terminated) string | |
264 | * containing the unencoded password. It also gets passed | |
265 | * an already allocated buffer to store the encoded password. | |
266 | * This buffer should be the exact length of the password without | |
5daacaa3 | 267 | * the null. The encoded password buffer /is not %NULL terminated/. |
9de3ca7e | 268 | * |
269 | * The encoding_table seems to be a fixed set of values. We'll | |
270 | * hope it doesn't change over time! | |
271 | * | |
5daacaa3 | 272 | * This is only used for the XOR method, not the better MD5 method. |
b5bc2a8c | 273 | * |
9de3ca7e | 274 | */ |
b5bc2a8c | 275 | static int aim_encode_password(const char *password, unsigned char *encoded) |
9de3ca7e | 276 | { |
277 | u_char encoding_table[] = { | |
b69540e3 | 278 | #if 0 /* old v1 table */ |
9de3ca7e | 279 | 0xf3, 0xb3, 0x6c, 0x99, |
280 | 0x95, 0x3f, 0xac, 0xb6, | |
281 | 0xc5, 0xfa, 0x6b, 0x63, | |
282 | 0x69, 0x6c, 0xc3, 0x9f | |
b69540e3 | 283 | #else /* v2.1 table, also works for ICQ */ |
5e02cf44 | 284 | 0xf3, 0x26, 0x81, 0xc4, |
b69540e3 | 285 | 0x39, 0x86, 0xdb, 0x92, |
286 | 0x71, 0xa3, 0xb9, 0xe6, | |
287 | 0x53, 0x7a, 0x95, 0x7c | |
288 | #endif | |
5e02cf44 | 289 | }; |
290 | ||
291 | int i; | |
b69540e3 | 292 | |
5e02cf44 | 293 | for (i = 0; i < strlen(password); i++) |
294 | encoded[i] = (password[i] ^ encoding_table[i]); | |
295 | ||
296 | return 0; | |
297 | } | |
298 | ||
e6b05d80 | 299 | /* |
300 | * Generate an authorization response. | |
301 | * | |
302 | * You probably don't want this unless you're writing an AIM server. | |
303 | * | |
304 | */ | |
78b3fb13 | 305 | faim_export unsigned long aim_sendauthresp(struct aim_session_t *sess, |
306 | struct aim_conn_t *conn, | |
355982c5 | 307 | char *sn, int errorcode, |
308 | char *errorurl, char *bosip, | |
78b3fb13 | 309 | char *cookie, char *email, |
310 | int regstatus) | |
e6b05d80 | 311 | { |
5b79dc93 | 312 | struct command_tx_struct *tx; |
e6b05d80 | 313 | struct aim_tlvlist_t *tlvlist = NULL; |
314 | ||
646c6b52 | 315 | if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0004, 1152))) |
5b79dc93 | 316 | return -1; |
e6b05d80 | 317 | |
5b79dc93 | 318 | tx->lock = 1; |
e6b05d80 | 319 | |
320 | if (sn) | |
321 | aim_addtlvtochain_str(&tlvlist, 0x0001, sn, strlen(sn)); | |
322 | else | |
355982c5 | 323 | aim_addtlvtochain_str(&tlvlist, 0x0001, sess->sn, strlen(sess->sn)); |
e6b05d80 | 324 | |
355982c5 | 325 | if (errorcode) { |
326 | aim_addtlvtochain16(&tlvlist, 0x0008, errorcode); | |
327 | aim_addtlvtochain_str(&tlvlist, 0x0004, errorurl, strlen(errorurl)); | |
e6b05d80 | 328 | } else { |
329 | aim_addtlvtochain_str(&tlvlist, 0x0005, bosip, strlen(bosip)); | |
330 | aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN); | |
331 | aim_addtlvtochain_str(&tlvlist, 0x0011, email, strlen(email)); | |
5ac21963 | 332 | aim_addtlvtochain16(&tlvlist, 0x0013, (unsigned short)regstatus); |
e6b05d80 | 333 | } |
334 | ||
5b79dc93 | 335 | tx->commandlen = aim_writetlvchain(tx->data, tx->commandlen, &tlvlist); |
336 | tx->lock = 0; | |
355982c5 | 337 | |
5b79dc93 | 338 | return aim_tx_enqueue(sess, tx); |
e6b05d80 | 339 | } |
340 | ||
341 | /* | |
342 | * Generate a random cookie. (Non-client use only) | |
343 | */ | |
78b3fb13 | 344 | faim_export int aim_gencookie(unsigned char *buf) |
e6b05d80 | 345 | { |
346 | int i; | |
347 | ||
348 | srand(time(NULL)); | |
349 | ||
350 | for (i=0; i < AIM_COOKIELEN; i++) | |
351 | buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0)); | |
352 | ||
353 | return i; | |
354 | } | |
355 | ||
356 | /* | |
357 | * Send Server Ready. (Non-client) | |
358 | */ | |
78b3fb13 | 359 | faim_export int aim_sendserverready(struct aim_session_t *sess, struct aim_conn_t *conn) |
e6b05d80 | 360 | { |
5b79dc93 | 361 | struct command_tx_struct *tx; |
e6b05d80 | 362 | int i = 0; |
363 | ||
646c6b52 | 364 | if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+0x22))) |
5b79dc93 | 365 | return -1; |
e6b05d80 | 366 | |
5b79dc93 | 367 | tx->lock = 1; |
e6b05d80 | 368 | |
67c0bb2f | 369 | i += aim_putsnac(tx->data, 0x0001, 0x0003, 0x0000, sess->snac_nextid++); |
5b79dc93 | 370 | |
371 | i += aimutil_put16(tx->data+i, 0x0001); | |
372 | i += aimutil_put16(tx->data+i, 0x0002); | |
373 | i += aimutil_put16(tx->data+i, 0x0003); | |
374 | i += aimutil_put16(tx->data+i, 0x0004); | |
375 | i += aimutil_put16(tx->data+i, 0x0006); | |
376 | i += aimutil_put16(tx->data+i, 0x0008); | |
377 | i += aimutil_put16(tx->data+i, 0x0009); | |
378 | i += aimutil_put16(tx->data+i, 0x000a); | |
379 | i += aimutil_put16(tx->data+i, 0x000b); | |
380 | i += aimutil_put16(tx->data+i, 0x000c); | |
67c0bb2f | 381 | i += aimutil_put16(tx->data+i, 0x0013); |
382 | i += aimutil_put16(tx->data+i, 0x0015); | |
5b79dc93 | 383 | |
67c0bb2f | 384 | tx->commandlen = i; |
5b79dc93 | 385 | tx->lock = 0; |
5b79dc93 | 386 | return aim_tx_enqueue(sess, tx); |
e6b05d80 | 387 | } |
388 | ||
389 | ||
390 | /* | |
391 | * Send service redirect. (Non-Client) | |
392 | */ | |
78b3fb13 | 393 | faim_export unsigned long aim_sendredirect(struct aim_session_t *sess, |
394 | struct aim_conn_t *conn, | |
395 | unsigned short servid, | |
396 | char *ip, | |
397 | char *cookie) | |
e6b05d80 | 398 | { |
5b79dc93 | 399 | struct command_tx_struct *tx; |
e6b05d80 | 400 | struct aim_tlvlist_t *tlvlist = NULL; |
401 | int i = 0; | |
402 | ||
646c6b52 | 403 | if (!(tx = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 1152))) |
5b79dc93 | 404 | return -1; |
405 | ||
406 | tx->lock = 1; | |
e6b05d80 | 407 | |
13ebc4c4 | 408 | i += aim_putsnac(tx->data+i, 0x0001, 0x0005, 0x0000, 0x00000000); |
e6b05d80 | 409 | |
410 | aim_addtlvtochain16(&tlvlist, 0x000d, servid); | |
411 | aim_addtlvtochain_str(&tlvlist, 0x0005, ip, strlen(ip)); | |
412 | aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN); | |
413 | ||
5b79dc93 | 414 | tx->commandlen = aim_writetlvchain(tx->data+i, tx->commandlen-i, &tlvlist)+i; |
e6b05d80 | 415 | aim_freetlvchain(&tlvlist); |
416 | ||
5b79dc93 | 417 | tx->lock = 0; |
418 | return aim_tx_enqueue(sess, tx); | |
e6b05d80 | 419 | } |
00ef5271 | 420 | |
421 | ||
422 | static int hostonline(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
423 | { | |
424 | rxcallback_t userfunc; | |
425 | int ret = 0; | |
426 | unsigned short *families; | |
427 | int famcount, i; | |
428 | ||
429 | famcount = datalen/2; | |
430 | ||
431 | if (!(families = malloc(datalen))) | |
432 | return 0; | |
433 | ||
434 | for (i = 0; i < famcount; i++) | |
435 | families[i] = aimutil_get16(data+(i*2)); | |
436 | ||
437 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
438 | ret = userfunc(sess, rx, famcount, families); | |
439 | ||
440 | free(families); | |
441 | ||
442 | return ret; | |
443 | } | |
444 | ||
445 | static int redirect(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
446 | { | |
447 | int serviceid; | |
448 | unsigned char *cookie; | |
449 | char *ip; | |
450 | rxcallback_t userfunc; | |
451 | struct aim_tlvlist_t *tlvlist; | |
452 | char *chathack = NULL; | |
453 | int chathackex = 0; | |
454 | int ret = 0; | |
455 | ||
456 | tlvlist = aim_readtlvchain(data, datalen); | |
457 | ||
458 | if (!aim_gettlv(tlvlist, 0x000d, 1) || | |
459 | !aim_gettlv(tlvlist, 0x0005, 1) || | |
460 | !aim_gettlv(tlvlist, 0x0006, 1)) { | |
461 | aim_freetlvchain(&tlvlist); | |
462 | return 0; | |
463 | } | |
464 | ||
465 | serviceid = aim_gettlv16(tlvlist, 0x000d, 1); | |
466 | ip = aim_gettlv_str(tlvlist, 0x0005, 1); | |
467 | cookie = aim_gettlv_str(tlvlist, 0x0006, 1); | |
468 | ||
469 | /* | |
470 | * Chat hack. | |
471 | * | |
472 | */ | |
473 | if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) { | |
474 | chathack = sess->pendingjoin; | |
475 | chathackex = sess->pendingjoinexchange; | |
476 | sess->pendingjoin = NULL; | |
477 | sess->pendingjoinexchange = 0; | |
478 | } | |
479 | ||
480 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
481 | ret = userfunc(sess, rx, serviceid, ip, cookie, chathack, chathackex); | |
482 | ||
483 | free(ip); | |
484 | free(cookie); | |
485 | free(chathack); | |
486 | ||
487 | aim_freetlvchain(&tlvlist); | |
488 | ||
489 | return ret; | |
490 | } | |
491 | ||
492 | /* | |
493 | * The Rate Limiting System, An Abridged Guide to Nonsense. | |
494 | * | |
495 | * OSCAR defines several 'rate classes'. Each class has seperate | |
496 | * rate limiting properties (limit level, alert level, disconnect | |
497 | * level, etc), and a set of SNAC family/type pairs associated with | |
498 | * it. The rate classes, their limiting properties, and the definitions | |
499 | * of which SNACs are belong to which class, are defined in the | |
500 | * Rate Response packet at login to each host. | |
501 | * | |
502 | * Logically, all rate offenses within one class count against further | |
503 | * offenses for other SNACs in the same class (ie, sending messages | |
504 | * too fast will limit the number of user info requests you can send, | |
505 | * since those two SNACs are in the same rate class). | |
506 | * | |
507 | * Since the rate classes are defined dynamically at login, the values | |
508 | * below may change. But they seem to be fairly constant. | |
509 | * | |
510 | * Currently, BOS defines five rate classes, with the commonly used | |
511 | * members as follows... | |
512 | * | |
513 | * Rate class 0x0001: | |
514 | * - Everything thats not in any of the other classes | |
515 | * | |
516 | * Rate class 0x0002: | |
517 | * - Buddy list add/remove | |
518 | * - Permit list add/remove | |
519 | * - Deny list add/remove | |
520 | * | |
521 | * Rate class 0x0003: | |
522 | * - User information requests | |
523 | * - Outgoing ICBMs | |
524 | * | |
525 | * Rate class 0x0004: | |
526 | * - A few unknowns: 2/9, 2/b, and f/2 | |
527 | * | |
528 | * Rate class 0x0005: | |
529 | * - Chat room create | |
530 | * - Outgoing chat ICBMs | |
531 | * | |
532 | * The only other thing of note is that class 5 (chat) has slightly looser | |
533 | * limiting properties than class 3 (normal messages). But thats just a | |
534 | * small bit of trivia for you. | |
535 | * | |
536 | * The last thing that needs to be learned about the rate limiting | |
537 | * system is how the actual numbers relate to the passing of time. This | |
538 | * seems to be a big mystery. | |
539 | * | |
540 | */ | |
541 | ||
542 | /* XXX parse this */ | |
543 | static int rateresp(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
544 | { | |
545 | rxcallback_t userfunc; | |
546 | ||
547 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
548 | return userfunc(sess, rx); | |
549 | ||
550 | return 0; | |
551 | } | |
552 | ||
553 | static int ratechange(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
554 | { | |
555 | rxcallback_t userfunc; | |
556 | int i = 0, code; | |
557 | unsigned long currentavg, maxavg; | |
558 | unsigned long rateclass, windowsize, clear, alert, limit, disconnect; | |
559 | ||
560 | code = aimutil_get16(data+i); | |
561 | i += 2; | |
562 | ||
563 | rateclass = aimutil_get16(data+i); | |
564 | i += 2; | |
565 | ||
566 | windowsize = aimutil_get32(data+i); | |
567 | i += 4; | |
568 | clear = aimutil_get32(data+i); | |
569 | i += 4; | |
570 | alert = aimutil_get32(data+i); | |
571 | i += 4; | |
572 | limit = aimutil_get32(data+i); | |
573 | i += 4; | |
574 | disconnect = aimutil_get32(data+i); | |
575 | i += 4; | |
576 | currentavg = aimutil_get32(data+i); | |
577 | i += 4; | |
578 | maxavg = aimutil_get32(data+i); | |
579 | i += 4; | |
580 | ||
581 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
582 | return userfunc(sess, rx, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg); | |
583 | ||
584 | return 0; | |
585 | } | |
586 | ||
587 | /* XXX parse this */ | |
588 | static int selfinfo(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
589 | { | |
590 | rxcallback_t userfunc; | |
591 | ||
592 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
593 | return userfunc(sess, rx); | |
594 | ||
595 | return 0; | |
596 | } | |
597 | ||
598 | static int evilnotify(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
599 | { | |
600 | rxcallback_t userfunc = NULL; | |
601 | int i = 0; | |
602 | unsigned short newevil; | |
603 | struct aim_userinfo_s userinfo; | |
604 | ||
605 | newevil = aimutil_get16(data); | |
606 | i += 2; | |
607 | ||
608 | memset(&userinfo, 0, sizeof(struct aim_userinfo_s)); | |
609 | ||
610 | if (datalen-i) | |
611 | i += aim_extractuserinfo(sess, data+i, &userinfo); | |
612 | ||
613 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
614 | return userfunc(sess, rx, newevil, &userinfo); | |
615 | ||
616 | return 0; | |
617 | } | |
618 | ||
619 | static int motd(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
620 | { | |
621 | rxcallback_t userfunc; | |
622 | char *msg = NULL; | |
623 | int ret = 0; | |
624 | struct aim_tlvlist_t *tlvlist; | |
625 | unsigned short id; | |
626 | ||
627 | /* | |
628 | * Code. | |
629 | * | |
630 | * Valid values: | |
631 | * 1 Mandatory upgrade | |
632 | * 2 Advisory upgrade | |
633 | * 3 System bulletin | |
634 | * 4 Nothing's wrong ("top o the world" -- normal) | |
635 | * | |
636 | */ | |
637 | id = aimutil_get16(data); | |
638 | ||
639 | /* | |
640 | * TLVs follow | |
641 | */ | |
642 | if ((tlvlist = aim_readtlvchain(data+2, datalen-2))) | |
643 | msg = aim_gettlv_str(tlvlist, 0x000b, 1); | |
644 | ||
645 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
646 | ret = userfunc(sess, rx, id, msg); | |
647 | ||
648 | free(msg); | |
649 | ||
650 | aim_freetlvchain(&tlvlist); | |
651 | ||
652 | return ret; | |
653 | } | |
654 | ||
655 | static int hostversions(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
656 | { | |
657 | rxcallback_t userfunc; | |
658 | int vercount; | |
659 | ||
660 | vercount = datalen/4; | |
661 | ||
662 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
663 | return userfunc(sess, rx, vercount, data); | |
664 | ||
665 | return 0; | |
666 | } | |
d32954e7 | 667 | /* |
668 | * Stay tuned. I have an explanation for here. | |
669 | * | |
670 | * | |
671 | */ | |
672 | static int memrequest(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen) | |
673 | { | |
674 | return 1; | |
675 | } | |
00ef5271 | 676 | |
677 | 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) | |
678 | { | |
679 | ||
680 | if (snac->subtype == 0x0003) | |
681 | return hostonline(sess, mod, rx, snac, data, datalen); | |
682 | else if (snac->subtype == 0x0005) | |
683 | return redirect(sess, mod, rx, snac, data, datalen); | |
684 | else if (snac->subtype == 0x0007) | |
685 | return rateresp(sess, mod, rx, snac, data, datalen); | |
686 | else if (snac->subtype == 0x000a) | |
687 | return ratechange(sess, mod, rx, snac, data, datalen); | |
688 | else if (snac->subtype == 0x000f) | |
689 | return selfinfo(sess, mod, rx, snac, data, datalen); | |
690 | else if (snac->subtype == 0x0010) | |
691 | return evilnotify(sess, mod, rx, snac, data, datalen); | |
692 | else if (snac->subtype == 0x0013) | |
693 | return motd(sess, mod, rx, snac, data, datalen); | |
694 | else if (snac->subtype == 0x0018) | |
695 | return hostversions(sess, mod, rx, snac, data, datalen); | |
d32954e7 | 696 | else if (snac->subtype == 0x001f) |
697 | return memrequest(sess, mod, rx, snac, data, datalen); | |
00ef5271 | 698 | |
699 | return 0; | |
700 | } | |
701 | ||
702 | faim_internal int general_modfirst(struct aim_session_t *sess, aim_module_t *mod) | |
703 | { | |
704 | ||
705 | mod->family = 0x0001; | |
706 | mod->version = 0x0000; | |
707 | mod->flags = 0; | |
708 | strncpy(mod->name, "general", sizeof(mod->name)); | |
709 | mod->snachandler = snachandler; | |
710 | ||
711 | return 0; | |
712 | } |