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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 | |
d410cf58 | 15 | faim_export int aim_sendflapver(aim_session_t *sess, aim_conn_t *conn) |
01b59e1e | 16 | { |
d410cf58 | 17 | aim_frame_t *fr; |
01b59e1e | 18 | |
d410cf58 | 19 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x01, 4))) |
355229fe | 20 | return -ENOMEM; |
01b59e1e | 21 | |
d410cf58 | 22 | aimbs_put32(&fr->data, 0x00000001); |
355229fe | 23 | |
d410cf58 | 24 | aim_tx_enqueue(sess, fr); |
355229fe | 25 | |
d410cf58 | 26 | return 0; |
01b59e1e | 27 | } |
28 | ||
01b59e1e | 29 | /* |
d410cf58 | 30 | * In AIM 3.5 protocol, the first stage of login is to request login from the |
31 | * Authorizer, passing it the screen name for verification. If the name is | |
32 | * invalid, a 0017/0003 is spit back, with the standard error contents. If | |
33 | * valid, a 0017/0007 comes back, which is the signal to send it the main | |
34 | * login command (0017/0002). | |
35 | * | |
36 | * XXX make ICQ logins work again. | |
01b59e1e | 37 | */ |
d410cf58 | 38 | faim_export int aim_request_login(aim_session_t *sess, aim_conn_t *conn, const char *sn) |
01b59e1e | 39 | { |
d410cf58 | 40 | aim_frame_t *fr; |
41 | aim_snacid_t snacid; | |
42 | aim_tlvlist_t *tl = NULL; | |
43 | ||
355229fe | 44 | if (!sess || !conn || !sn) |
45 | return -EINVAL; | |
46 | ||
355229fe | 47 | sess->flags |= AIM_SESS_FLAGS_SNACLOGIN; |
48 | ||
49 | aim_sendflapver(sess, conn); | |
50 | ||
d410cf58 | 51 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+2+2+strlen(sn)))) |
355229fe | 52 | return -ENOMEM; |
53 | ||
d410cf58 | 54 | snacid = aim_cachesnac(sess, 0x0017, 0x0006, 0x0000, NULL, 0); |
55 | aim_putsnac(&fr->data, 0x0017, 0x0006, 0x0000, snacid); | |
355229fe | 56 | |
d410cf58 | 57 | aim_addtlvtochain_raw(&tl, 0x0001, strlen(sn), sn); |
58 | aim_writetlvchain(&fr->data, &tl); | |
59 | aim_freetlvchain(&tl); | |
355229fe | 60 | |
d410cf58 | 61 | aim_tx_enqueue(sess, fr); |
355229fe | 62 | |
d410cf58 | 63 | return 0; |
01b59e1e | 64 | } |
01b59e1e | 65 | |
9de3ca7e | 66 | /* |
24286d93 | 67 | * send_login(int socket, char *sn, char *password) |
9de3ca7e | 68 | * |
69 | * This is the initial login request packet. | |
70 | * | |
b1eac25a | 71 | * NOTE!! If you want/need to make use of the aim_sendmemblock() function, |
72 | * then the client information you send here must exactly match the | |
73 | * executable that you're pulling the data from. | |
9de3ca7e | 74 | * |
355982c5 | 75 | * Latest WinAIM: |
76 | * clientstring = "AOL Instant Messenger (SM), version 4.3.2188/WIN32" | |
77 | * major2 = 0x0109 | |
78 | * major = 0x0400 | |
79 | * minor = 0x0003 | |
80 | * minor2 = 0x0000 | |
81 | * build = 0x088c | |
82 | * unknown = 0x00000086 | |
83 | * lang = "en" | |
84 | * country = "us" | |
85 | * unknown4a = 0x01 | |
154b4093 | 86 | * |
87 | * Latest WinAIM that libfaim can emulate without server-side buddylists: | |
b1eac25a | 88 | * clientstring = "AOL Instant Messenger (SM), version 4.1.2010/WIN32" |
89 | * major2 = 0x0004 | |
90 | * major = 0x0004 | |
91 | * minor = 0x0001 | |
92 | * minor2 = 0x0000 | |
93 | * build = 0x07da | |
94 | * unknown= 0x0000004b | |
95 | * | |
96 | * WinAIM 3.5.1670: | |
154b4093 | 97 | * clientstring = "AOL Instant Messenger (SM), version 3.5.1670/WIN32" |
98 | * major2 = 0x0004 | |
99 | * major = 0x0003 | |
100 | * minor = 0x0005 | |
101 | * minor2 = 0x0000 | |
102 | * build = 0x0686 | |
103 | * unknown =0x0000002a | |
104 | * | |
d32954e7 | 105 | * Java AIM 1.1.19: |
106 | * 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" | |
107 | * major2 = 0x0001 | |
108 | * major = 0x0001 | |
109 | * minor = 0x0001 | |
110 | * minor2 = (not sent) | |
111 | * build = 0x0013 | |
112 | * unknown= (not sent) | |
113 | * | |
114 | * AIM for Linux 1.1.112: | |
115 | * clientstring = "AOL Instant Messenger (SM)" | |
116 | * major2 = 0x1d09 | |
117 | * major = 0x0001 | |
118 | * minor = 0x0001 | |
119 | * minor2 = 0x0001 | |
120 | * build = 0x0070 | |
121 | * unknown= 0x0000008b | |
122 | * serverstore = 0x01 | |
123 | * | |
9de3ca7e | 124 | */ |
d410cf58 | 125 | faim_export int aim_send_login(aim_session_t *sess, aim_conn_t *conn, const char *sn, const char *password, struct client_info_s *clientinfo, const char *key) |
9de3ca7e | 126 | { |
d410cf58 | 127 | aim_frame_t *fr; |
128 | aim_tlvlist_t *tl = NULL; | |
355229fe | 129 | |
130 | if (!clientinfo || !sn || !password) | |
131 | return -EINVAL; | |
132 | ||
d410cf58 | 133 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 1152))) |
355229fe | 134 | return -ENOMEM; |
135 | ||
d410cf58 | 136 | if (sess->flags & AIM_SESS_FLAGS_XORLOGIN) { |
137 | fr->hdr.flap.type = 0x01; | |
355229fe | 138 | |
d410cf58 | 139 | /* Use very specific version numbers to further indicate hack */ |
140 | clientinfo->major2 = 0x010a; | |
141 | clientinfo->major = 0x0004; | |
142 | clientinfo->minor = 0x003c; | |
143 | clientinfo->minor2 = 0x0001; | |
144 | clientinfo->build = 0x0cce; | |
145 | clientinfo->unknown = 0x00000055; | |
146 | } | |
355229fe | 147 | |
148 | if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) | |
d410cf58 | 149 | aim_putsnac(&fr->data, 0x0017, 0x0002, 0x0000, 0x00010000); |
150 | else | |
151 | aimbs_put32(&fr->data, 0x00000001); | |
355229fe | 152 | |
d410cf58 | 153 | aim_addtlvtochain_raw(&tl, 0x0001, strlen(sn), sn); |
355229fe | 154 | |
155 | if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) { | |
d410cf58 | 156 | fu8_t digest[16]; |
355229fe | 157 | |
158 | aim_encode_password_md5(password, key, digest); | |
d410cf58 | 159 | aim_addtlvtochain_raw(&tl, 0x0025, 16, digest); |
355229fe | 160 | } else { |
161 | char *password_encoded; | |
162 | ||
163 | password_encoded = (char *) malloc(strlen(password)); | |
164 | aim_encode_password(password, password_encoded); | |
d410cf58 | 165 | aim_addtlvtochain_raw(&tl, 0x0002, strlen(password), password_encoded); |
355229fe | 166 | free(password_encoded); |
167 | } | |
168 | ||
d410cf58 | 169 | aim_addtlvtochain_raw(&tl, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring); |
355229fe | 170 | |
d410cf58 | 171 | aim_addtlvtochain16(&tl, 0x0016, (fu16_t)clientinfo->major2); |
172 | aim_addtlvtochain16(&tl, 0x0017, (fu16_t)clientinfo->major); | |
173 | aim_addtlvtochain16(&tl, 0x0018, (fu16_t)clientinfo->minor); | |
174 | aim_addtlvtochain16(&tl, 0x0019, (fu16_t)clientinfo->minor2); | |
175 | aim_addtlvtochain16(&tl, 0x001a, (fu16_t)clientinfo->build); | |
355229fe | 176 | |
d410cf58 | 177 | aim_addtlvtochain_raw(&tl, 0x000e, strlen(clientinfo->country), clientinfo->country); |
178 | aim_addtlvtochain_raw(&tl, 0x000f, strlen(clientinfo->lang), clientinfo->lang); | |
355229fe | 179 | |
d410cf58 | 180 | if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) |
181 | aim_addtlvtochain16(&tl, 0x0009, 0x0015); | |
355229fe | 182 | |
d410cf58 | 183 | aim_writetlvchain(&fr->data, &tl); |
355229fe | 184 | |
d410cf58 | 185 | aim_freetlvchain(&tl); |
186 | ||
187 | aim_tx_enqueue(sess, fr); | |
355229fe | 188 | |
d410cf58 | 189 | return 0; |
9de3ca7e | 190 | } |
9de3ca7e | 191 | |
d410cf58 | 192 | faim_export int aim_encode_password_md5(const char *password, const char *key, fu8_t *digest) |
b5bc2a8c | 193 | { |
355229fe | 194 | md5_state_t state; |
b5bc2a8c | 195 | |
355229fe | 196 | md5_init(&state); |
197 | md5_append(&state, (const md5_byte_t *)key, strlen(key)); | |
198 | md5_append(&state, (const md5_byte_t *)password, strlen(password)); | |
199 | md5_append(&state, (const md5_byte_t *)AIM_MD5_STRING, strlen(AIM_MD5_STRING)); | |
200 | md5_finish(&state, (md5_byte_t *)digest); | |
b5bc2a8c | 201 | |
355229fe | 202 | return 0; |
b5bc2a8c | 203 | } |
204 | ||
5daacaa3 | 205 | /** |
206 | * aim_encode_password - Encode a password using old XOR method | |
207 | * @password: incoming password | |
208 | * @encoded: buffer to put encoded password | |
9de3ca7e | 209 | * |
210 | * This takes a const pointer to a (null terminated) string | |
211 | * containing the unencoded password. It also gets passed | |
212 | * an already allocated buffer to store the encoded password. | |
213 | * This buffer should be the exact length of the password without | |
5daacaa3 | 214 | * the null. The encoded password buffer /is not %NULL terminated/. |
9de3ca7e | 215 | * |
216 | * The encoding_table seems to be a fixed set of values. We'll | |
217 | * hope it doesn't change over time! | |
218 | * | |
5daacaa3 | 219 | * This is only used for the XOR method, not the better MD5 method. |
b5bc2a8c | 220 | * |
9de3ca7e | 221 | */ |
d410cf58 | 222 | static int aim_encode_password(const char *password, fu8_t *encoded) |
9de3ca7e | 223 | { |
d410cf58 | 224 | fu8_t encoding_table[] = { |
b69540e3 | 225 | #if 0 /* old v1 table */ |
355229fe | 226 | 0xf3, 0xb3, 0x6c, 0x99, |
227 | 0x95, 0x3f, 0xac, 0xb6, | |
228 | 0xc5, 0xfa, 0x6b, 0x63, | |
229 | 0x69, 0x6c, 0xc3, 0x9f | |
b69540e3 | 230 | #else /* v2.1 table, also works for ICQ */ |
355229fe | 231 | 0xf3, 0x26, 0x81, 0xc4, |
232 | 0x39, 0x86, 0xdb, 0x92, | |
233 | 0x71, 0xa3, 0xb9, 0xe6, | |
234 | 0x53, 0x7a, 0x95, 0x7c | |
b69540e3 | 235 | #endif |
355229fe | 236 | }; |
237 | int i; | |
5e02cf44 | 238 | |
355229fe | 239 | for (i = 0; i < strlen(password); i++) |
240 | encoded[i] = (password[i] ^ encoding_table[i]); | |
5e02cf44 | 241 | |
355229fe | 242 | return 0; |
5e02cf44 | 243 | } |
244 | ||
e6b05d80 | 245 | /* |
246 | * Generate an authorization response. | |
247 | * | |
d410cf58 | 248 | * You probably don't want this unless you're writing an AIM server. Which |
249 | * I hope you're not doing. Because it's far more difficult than it looks. | |
e6b05d80 | 250 | * |
251 | */ | |
d410cf58 | 252 | faim_export int aim_sendauthresp(aim_session_t *sess, aim_conn_t *conn, const char *sn, int errorcode, const char *errorurl, const char *bosip, const char *cookie, const char *email, int regstatus) |
e6b05d80 | 253 | { |
d410cf58 | 254 | aim_tlvlist_t *tlvlist = NULL; |
255 | aim_frame_t *fr; | |
355229fe | 256 | |
d410cf58 | 257 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x04, 1152))) |
355229fe | 258 | return -ENOMEM; |
259 | ||
355229fe | 260 | if (sn) |
d410cf58 | 261 | aim_addtlvtochain_raw(&tlvlist, 0x0001, strlen(sn), sn); |
355229fe | 262 | else |
d410cf58 | 263 | aim_addtlvtochain_raw(&tlvlist, 0x0001, strlen(sess->sn), sess->sn); |
355229fe | 264 | |
265 | if (errorcode) { | |
266 | aim_addtlvtochain16(&tlvlist, 0x0008, errorcode); | |
d410cf58 | 267 | aim_addtlvtochain_raw(&tlvlist, 0x0004, strlen(errorurl), errorurl); |
355229fe | 268 | } else { |
d410cf58 | 269 | aim_addtlvtochain_raw(&tlvlist, 0x0005, strlen(bosip), bosip); |
270 | aim_addtlvtochain_raw(&tlvlist, 0x0006, AIM_COOKIELEN, cookie); | |
271 | aim_addtlvtochain_raw(&tlvlist, 0x0011, strlen(email), email); | |
272 | aim_addtlvtochain16(&tlvlist, 0x0013, (fu16_t)regstatus); | |
355229fe | 273 | } |
274 | ||
d410cf58 | 275 | aim_writetlvchain(&fr->data, &tlvlist); |
276 | aim_freetlvchain(&tlvlist); | |
277 | ||
278 | aim_tx_enqueue(sess, fr); | |
355229fe | 279 | |
d410cf58 | 280 | return 0; |
e6b05d80 | 281 | } |
282 | ||
283 | /* | |
284 | * Generate a random cookie. (Non-client use only) | |
285 | */ | |
d410cf58 | 286 | faim_export int aim_gencookie(fu8_t *buf) |
e6b05d80 | 287 | { |
355229fe | 288 | int i; |
e6b05d80 | 289 | |
355229fe | 290 | srand(time(NULL)); |
e6b05d80 | 291 | |
d410cf58 | 292 | for (i = 0; i < AIM_COOKIELEN; i++) |
355229fe | 293 | buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0)); |
e6b05d80 | 294 | |
355229fe | 295 | return i; |
e6b05d80 | 296 | } |
297 | ||
298 | /* | |
299 | * Send Server Ready. (Non-client) | |
300 | */ | |
d410cf58 | 301 | faim_export int aim_sendserverready(aim_session_t *sess, aim_conn_t *conn) |
e6b05d80 | 302 | { |
d410cf58 | 303 | aim_frame_t *fr; |
304 | aim_snacid_t snacid; | |
355229fe | 305 | |
d410cf58 | 306 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+0x22))) |
355229fe | 307 | return -ENOMEM; |
308 | ||
d410cf58 | 309 | snacid = aim_cachesnac(sess, 0x0001, 0x0003, 0x0000, NULL, 0); |
355229fe | 310 | |
d410cf58 | 311 | aim_putsnac(&fr->data, 0x0001, 0x0003, 0x0000, snacid); |
312 | aimbs_put16(&fr->data, 0x0001); | |
313 | aimbs_put16(&fr->data, 0x0002); | |
314 | aimbs_put16(&fr->data, 0x0003); | |
315 | aimbs_put16(&fr->data, 0x0004); | |
316 | aimbs_put16(&fr->data, 0x0006); | |
317 | aimbs_put16(&fr->data, 0x0008); | |
318 | aimbs_put16(&fr->data, 0x0009); | |
319 | aimbs_put16(&fr->data, 0x000a); | |
320 | aimbs_put16(&fr->data, 0x000b); | |
321 | aimbs_put16(&fr->data, 0x000c); | |
322 | aimbs_put16(&fr->data, 0x0013); | |
323 | aimbs_put16(&fr->data, 0x0015); | |
355229fe | 324 | |
d410cf58 | 325 | aim_tx_enqueue(sess, fr); |
355229fe | 326 | |
d410cf58 | 327 | return 0; |
e6b05d80 | 328 | } |
329 | ||
330 | ||
331 | /* | |
332 | * Send service redirect. (Non-Client) | |
333 | */ | |
d410cf58 | 334 | faim_export int aim_sendredirect(aim_session_t *sess, aim_conn_t *conn, fu16_t servid, const char *ip, const char *cookie) |
e6b05d80 | 335 | { |
d410cf58 | 336 | aim_tlvlist_t *tlvlist = NULL; |
337 | aim_frame_t *fr; | |
338 | aim_snacid_t snacid; | |
355229fe | 339 | |
d410cf58 | 340 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 1152))) |
355229fe | 341 | return -ENOMEM; |
e6b05d80 | 342 | |
d410cf58 | 343 | snacid = aim_cachesnac(sess, 0x0001, 0x0005, 0x0000, NULL, 0); |
344 | aim_putsnac(&fr->data, 0x0001, 0x0005, 0x0000, snacid); | |
e6b05d80 | 345 | |
355229fe | 346 | aim_addtlvtochain16(&tlvlist, 0x000d, servid); |
d410cf58 | 347 | aim_addtlvtochain_raw(&tlvlist, 0x0005, strlen(ip), ip); |
348 | aim_addtlvtochain_raw(&tlvlist, 0x0006, AIM_COOKIELEN, cookie); | |
e6b05d80 | 349 | |
d410cf58 | 350 | aim_writetlvchain(&fr->data, &tlvlist); |
355229fe | 351 | aim_freetlvchain(&tlvlist); |
e6b05d80 | 352 | |
d410cf58 | 353 | aim_tx_enqueue(sess, fr); |
355229fe | 354 | |
d410cf58 | 355 | return 0; |
e6b05d80 | 356 | } |
00ef5271 | 357 | |
358 | ||
d410cf58 | 359 | static int hostonline(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 360 | { |
355229fe | 361 | aim_rxcallback_t userfunc; |
362 | int ret = 0; | |
d410cf58 | 363 | fu16_t *families; |
364 | int famcount; | |
00ef5271 | 365 | |
d410cf58 | 366 | if (!(families = malloc(aim_bstream_empty(bs)))) |
355229fe | 367 | return 0; |
00ef5271 | 368 | |
d410cf58 | 369 | for (famcount = 0; aim_bstream_empty(bs); famcount++) |
370 | families[famcount] = aimbs_get16(bs); | |
00ef5271 | 371 | |
355229fe | 372 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
373 | ret = userfunc(sess, rx, famcount, families); | |
00ef5271 | 374 | |
355229fe | 375 | free(families); |
00ef5271 | 376 | |
d410cf58 | 377 | return ret; |
00ef5271 | 378 | } |
379 | ||
d410cf58 | 380 | static int redirect(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 381 | { |
355229fe | 382 | int serviceid; |
d410cf58 | 383 | fu8_t *cookie; |
355229fe | 384 | char *ip; |
385 | aim_rxcallback_t userfunc; | |
d410cf58 | 386 | aim_tlvlist_t *tlvlist; |
355229fe | 387 | char *chathack = NULL; |
388 | int chathackex = 0; | |
389 | int ret = 0; | |
390 | ||
d410cf58 | 391 | tlvlist = aim_readtlvchain(bs); |
355229fe | 392 | |
393 | if (!aim_gettlv(tlvlist, 0x000d, 1) || | |
394 | !aim_gettlv(tlvlist, 0x0005, 1) || | |
395 | !aim_gettlv(tlvlist, 0x0006, 1)) { | |
396 | aim_freetlvchain(&tlvlist); | |
397 | return 0; | |
398 | } | |
399 | ||
400 | serviceid = aim_gettlv16(tlvlist, 0x000d, 1); | |
401 | ip = aim_gettlv_str(tlvlist, 0x0005, 1); | |
402 | cookie = aim_gettlv_str(tlvlist, 0x0006, 1); | |
403 | ||
404 | /* | |
405 | * Chat hack. | |
406 | */ | |
407 | if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) { | |
408 | chathack = sess->pendingjoin; | |
409 | chathackex = sess->pendingjoinexchange; | |
410 | sess->pendingjoin = NULL; | |
411 | sess->pendingjoinexchange = 0; | |
412 | } | |
413 | ||
414 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
415 | ret = userfunc(sess, rx, serviceid, ip, cookie, chathack, chathackex); | |
416 | ||
417 | free(ip); | |
418 | free(cookie); | |
419 | free(chathack); | |
420 | ||
421 | aim_freetlvchain(&tlvlist); | |
422 | ||
423 | return ret; | |
00ef5271 | 424 | } |
425 | ||
426 | /* | |
427 | * The Rate Limiting System, An Abridged Guide to Nonsense. | |
428 | * | |
429 | * OSCAR defines several 'rate classes'. Each class has seperate | |
430 | * rate limiting properties (limit level, alert level, disconnect | |
431 | * level, etc), and a set of SNAC family/type pairs associated with | |
432 | * it. The rate classes, their limiting properties, and the definitions | |
433 | * of which SNACs are belong to which class, are defined in the | |
434 | * Rate Response packet at login to each host. | |
435 | * | |
436 | * Logically, all rate offenses within one class count against further | |
437 | * offenses for other SNACs in the same class (ie, sending messages | |
438 | * too fast will limit the number of user info requests you can send, | |
439 | * since those two SNACs are in the same rate class). | |
440 | * | |
441 | * Since the rate classes are defined dynamically at login, the values | |
442 | * below may change. But they seem to be fairly constant. | |
443 | * | |
444 | * Currently, BOS defines five rate classes, with the commonly used | |
445 | * members as follows... | |
446 | * | |
447 | * Rate class 0x0001: | |
448 | * - Everything thats not in any of the other classes | |
449 | * | |
450 | * Rate class 0x0002: | |
451 | * - Buddy list add/remove | |
452 | * - Permit list add/remove | |
453 | * - Deny list add/remove | |
454 | * | |
455 | * Rate class 0x0003: | |
456 | * - User information requests | |
457 | * - Outgoing ICBMs | |
458 | * | |
459 | * Rate class 0x0004: | |
460 | * - A few unknowns: 2/9, 2/b, and f/2 | |
461 | * | |
462 | * Rate class 0x0005: | |
463 | * - Chat room create | |
464 | * - Outgoing chat ICBMs | |
465 | * | |
466 | * The only other thing of note is that class 5 (chat) has slightly looser | |
467 | * limiting properties than class 3 (normal messages). But thats just a | |
468 | * small bit of trivia for you. | |
469 | * | |
470 | * The last thing that needs to be learned about the rate limiting | |
471 | * system is how the actual numbers relate to the passing of time. This | |
472 | * seems to be a big mystery. | |
473 | * | |
474 | */ | |
475 | ||
476 | /* XXX parse this */ | |
d410cf58 | 477 | static int rateresp(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 478 | { |
355229fe | 479 | aim_rxcallback_t userfunc; |
00ef5271 | 480 | |
355229fe | 481 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
482 | return userfunc(sess, rx); | |
00ef5271 | 483 | |
355229fe | 484 | return 0; |
00ef5271 | 485 | } |
486 | ||
d410cf58 | 487 | static int ratechange(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 488 | { |
355229fe | 489 | aim_rxcallback_t userfunc; |
d410cf58 | 490 | fu16_t code, rateclass; |
491 | fu32_t currentavg, maxavg, windowsize, clear, alert, limit, disconnect; | |
492 | ||
493 | code = aimbs_get16(bs); | |
494 | rateclass = aimbs_get16(bs); | |
495 | ||
496 | windowsize = aimbs_get32(bs); | |
497 | clear = aimbs_get32(bs); | |
498 | alert = aimbs_get32(bs); | |
499 | limit = aimbs_get32(bs); | |
500 | disconnect = aimbs_get32(bs); | |
501 | currentavg = aimbs_get32(bs); | |
502 | maxavg = aimbs_get32(bs); | |
355229fe | 503 | |
504 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
505 | return userfunc(sess, rx, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg); | |
506 | ||
507 | return 0; | |
00ef5271 | 508 | } |
509 | ||
510 | /* XXX parse this */ | |
d410cf58 | 511 | static int selfinfo(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 512 | { |
355229fe | 513 | aim_rxcallback_t userfunc; |
00ef5271 | 514 | |
355229fe | 515 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
516 | return userfunc(sess, rx); | |
00ef5271 | 517 | |
355229fe | 518 | return 0; |
00ef5271 | 519 | } |
520 | ||
d410cf58 | 521 | static int evilnotify(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 522 | { |
d410cf58 | 523 | aim_rxcallback_t userfunc; |
524 | fu16_t newevil; | |
355229fe | 525 | struct aim_userinfo_s userinfo; |
526 | ||
355229fe | 527 | memset(&userinfo, 0, sizeof(struct aim_userinfo_s)); |
d410cf58 | 528 | |
529 | newevil = aimbs_get16(bs); | |
00ef5271 | 530 | |
d410cf58 | 531 | if (aim_bstream_empty(bs)) |
532 | aim_extractuserinfo(sess, bs, &userinfo); | |
00ef5271 | 533 | |
355229fe | 534 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
535 | return userfunc(sess, rx, newevil, &userinfo); | |
00ef5271 | 536 | |
355229fe | 537 | return 0; |
00ef5271 | 538 | } |
539 | ||
d410cf58 | 540 | static int motd(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 541 | { |
355229fe | 542 | aim_rxcallback_t userfunc; |
543 | char *msg = NULL; | |
544 | int ret = 0; | |
d410cf58 | 545 | aim_tlvlist_t *tlvlist; |
546 | fu16_t id; | |
355229fe | 547 | |
548 | /* | |
549 | * Code. | |
550 | * | |
551 | * Valid values: | |
552 | * 1 Mandatory upgrade | |
553 | * 2 Advisory upgrade | |
554 | * 3 System bulletin | |
555 | * 4 Nothing's wrong ("top o the world" -- normal) | |
556 | * | |
557 | */ | |
d410cf58 | 558 | id = aimbs_get16(bs); |
355229fe | 559 | |
560 | /* | |
561 | * TLVs follow | |
562 | */ | |
d410cf58 | 563 | tlvlist = aim_readtlvchain(bs); |
564 | ||
565 | msg = aim_gettlv_str(tlvlist, 0x000b, 1); | |
355229fe | 566 | |
567 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) | |
568 | ret = userfunc(sess, rx, id, msg); | |
569 | ||
570 | free(msg); | |
571 | ||
572 | aim_freetlvchain(&tlvlist); | |
573 | ||
574 | return ret; | |
00ef5271 | 575 | } |
576 | ||
d410cf58 | 577 | static int hostversions(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 578 | { |
355229fe | 579 | aim_rxcallback_t userfunc; |
580 | int vercount; | |
d410cf58 | 581 | fu8_t *versions; |
00ef5271 | 582 | |
d410cf58 | 583 | vercount = aim_bstream_empty(bs)/4; |
584 | versions = aimbs_getraw(bs, aim_bstream_empty(bs)); | |
00ef5271 | 585 | |
355229fe | 586 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
d410cf58 | 587 | return userfunc(sess, rx, vercount, versions); |
588 | ||
589 | free(versions); | |
355229fe | 590 | |
591 | return 0; | |
00ef5271 | 592 | } |
b1eac25a | 593 | |
d32954e7 | 594 | /* |
b1eac25a | 595 | * Starting this past week (26 Mar 2001, say), AOL has started sending |
596 | * this nice little extra SNAC. AFAIK, it has never been used until now. | |
597 | * | |
598 | * The request contains eight bytes. The first four are an offset, the | |
599 | * second four are a length. | |
d32954e7 | 600 | * |
b1eac25a | 601 | * The offset is an offset into aim.exe when it is mapped during execution |
602 | * on Win32. So far, AOL has only been requesting bytes in static regions | |
603 | * of memory. (I won't put it past them to start requesting data in | |
604 | * less static regions -- regions that are initialized at run time, but still | |
605 | * before the client recieves this request.) | |
606 | * | |
607 | * When the client recieves the request, it adds it to the current ds | |
608 | * (0x00400000) and dereferences it, copying the data into a buffer which | |
609 | * it then runs directly through the MD5 hasher. The 16 byte output of | |
610 | * the hash is then sent back to the server. | |
611 | * | |
612 | * If the client does not send any data back, or the data does not match | |
613 | * the data that the specific client should have, the client will get the | |
614 | * following message from "AOL Instant Messenger": | |
615 | * "You have been disconnected from the AOL Instant Message Service (SM) | |
616 | * for accessing the AOL network using unauthorized software. You can | |
617 | * download a FREE, fully featured, and authorized client, here | |
618 | * http://www.aol.com/aim/download2.html" | |
619 | * The connection is then closed, recieving disconnect code 1, URL | |
620 | * http://www.aim.aol.com/errors/USER_LOGGED_OFF_NEW_LOGIN.html. | |
621 | * | |
622 | * Note, however, that numerous inconsistencies can cause the above error, | |
623 | * not just sending back a bad hash. Do not immediatly suspect this code | |
624 | * if you get disconnected. AOL and the open/free software community have | |
625 | * played this game for a couple years now, generating the above message | |
626 | * on numerous ocassions. | |
627 | * | |
628 | * Anyway, neener. We win again. | |
d32954e7 | 629 | * |
630 | */ | |
d410cf58 | 631 | static int memrequest(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
d32954e7 | 632 | { |
355229fe | 633 | aim_rxcallback_t userfunc; |
d410cf58 | 634 | fu32_t offset, len; |
635 | aim_tlvlist_t *list; | |
636 | char *modname; | |
b1eac25a | 637 | |
d410cf58 | 638 | offset = aimbs_get32(bs); |
639 | len = aimbs_get32(bs); | |
640 | list = aim_readtlvchain(bs); | |
328837f7 | 641 | |
d410cf58 | 642 | modname = aim_gettlv_str(list, 0x0001, 1); |
5ac961d5 | 643 | |
355229fe | 644 | faimdprintf(sess, 1, "data at 0x%08lx (%d bytes) of requested\n", offset, len, modname ? modname : "aim.exe"); |
b1eac25a | 645 | |
355229fe | 646 | if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype))) |
647 | return userfunc(sess, rx, offset, len, modname); | |
b1eac25a | 648 | |
355229fe | 649 | free(modname); |
650 | aim_freetlvchain(&list); | |
5ac961d5 | 651 | |
355229fe | 652 | return 0; |
b1eac25a | 653 | } |
654 | ||
d410cf58 | 655 | #if 0 |
656 | static void dumpbox(aim_session_t *sess, unsigned char *buf, int len) | |
001c9b80 | 657 | { |
355229fe | 658 | int i; |
659 | ||
660 | if (!sess || !buf || !len) | |
661 | return; | |
001c9b80 | 662 | |
355229fe | 663 | faimdprintf(sess, 1, "\nDump of %d bytes at %p:", len, buf); |
001c9b80 | 664 | |
355229fe | 665 | for (i = 0; i < len; i++) { |
666 | if ((i % 8) == 0) | |
667 | faimdprintf(sess, 1, "\n\t"); | |
001c9b80 | 668 | |
355229fe | 669 | faimdprintf(sess, 1, "0x%2x ", buf[i]); |
670 | } | |
001c9b80 | 671 | |
355229fe | 672 | faimdprintf(sess, 1, "\n\n"); |
001c9b80 | 673 | |
355229fe | 674 | return; |
001c9b80 | 675 | } |
d410cf58 | 676 | #endif |
001c9b80 | 677 | |
d410cf58 | 678 | faim_export int aim_sendmemblock(aim_session_t *sess, aim_conn_t *conn, fu32_t offset, fu32_t len, const fu8_t *buf, fu8_t flag) |
b1eac25a | 679 | { |
d410cf58 | 680 | aim_frame_t *fr; |
681 | aim_snacid_t snacid; | |
b1eac25a | 682 | |
355229fe | 683 | if (!sess || !conn) |
684 | return -EINVAL; | |
b1eac25a | 685 | |
d410cf58 | 686 | if (!(fr = aim_tx_new(sess, conn, AIM_FRAMETYPE_FLAP, 0x02, 10+2+16))) |
355229fe | 687 | return -ENOMEM; |
b1eac25a | 688 | |
d410cf58 | 689 | snacid = aim_cachesnac(sess, 0x0001, 0x0020, 0x0000, NULL, 0); |
b1eac25a | 690 | |
d410cf58 | 691 | aim_putsnac(&fr->data, 0x0001, 0x0020, 0x0000, snacid); |
692 | aimbs_put16(&fr->data, 0x0010); /* md5 is always 16 bytes */ | |
b1eac25a | 693 | |
355229fe | 694 | if ((flag == AIM_SENDMEMBLOCK_FLAG_ISHASH) && buf && (len == 0x10)) { /* we're getting a hash */ |
d2698e03 | 695 | |
d410cf58 | 696 | aimbs_putraw(&fr->data, buf, 0x10); |
d2698e03 | 697 | |
355229fe | 698 | } else if (buf && (len > 0)) { /* use input buffer */ |
699 | md5_state_t state; | |
d410cf58 | 700 | md5_byte_t digest[0x10]; |
b1eac25a | 701 | |
355229fe | 702 | md5_init(&state); |
703 | md5_append(&state, (const md5_byte_t *)buf, len); | |
d410cf58 | 704 | md5_finish(&state, digest); |
705 | ||
706 | aimbs_putraw(&fr->data, (fu8_t *)digest, 0x10); | |
b1eac25a | 707 | |
355229fe | 708 | } else if (len == 0) { /* no length, just hash NULL (buf is optional) */ |
709 | md5_state_t state; | |
d410cf58 | 710 | fu8_t nil = '\0'; |
711 | md5_byte_t digest[0x10]; | |
001c9b80 | 712 | |
355229fe | 713 | /* |
714 | * These MD5 routines are stupid in that you have to have | |
715 | * at least one append. So thats why this doesn't look | |
716 | * real logical. | |
717 | */ | |
718 | md5_init(&state); | |
719 | md5_append(&state, (const md5_byte_t *)&nil, 0); | |
d410cf58 | 720 | md5_finish(&state, digest); |
721 | ||
722 | aimbs_putraw(&fr->data, (fu8_t *)digest, 0x10); | |
001c9b80 | 723 | |
355229fe | 724 | } else { |
b1eac25a | 725 | |
355229fe | 726 | /* |
727 | * This data is correct for AIM 3.5.1670. | |
728 | * | |
729 | * Using these blocks is as close to "legal" as you can get | |
730 | * without using an AIM binary. | |
731 | * | |
732 | */ | |
733 | if ((offset == 0x03ffffff) && (len == 0x03ffffff)) { | |
fa358732 | 734 | |
735 | #if 1 /* with "AnrbnrAqhfzcd" */ | |
d410cf58 | 736 | aimbs_put32(&fr->data, 0x44a95d26); |
737 | aimbs_put32(&fr->data, 0xd2490423); | |
738 | aimbs_put32(&fr->data, 0x93b8821f); | |
739 | aimbs_put32(&fr->data, 0x51c54b01); | |
fa358732 | 740 | #else /* no filename */ |
d410cf58 | 741 | aimbs_put32(&fr->data, 0x1df8cbae); |
742 | aimbs_put32(&fr->data, 0x5523b839); | |
743 | aimbs_put32(&fr->data, 0xa0e10db3); | |
744 | aimbs_put32(&fr->data, 0xa46d3b39); | |
fa358732 | 745 | #endif |
746 | ||
355229fe | 747 | } else if ((offset == 0x00001000) && (len == 0x00000000)) { |
fa358732 | 748 | |
d410cf58 | 749 | aimbs_put32(&fr->data, 0xd41d8cd9); |
750 | aimbs_put32(&fr->data, 0x8f00b204); | |
751 | aimbs_put32(&fr->data, 0xe9800998); | |
752 | aimbs_put32(&fr->data, 0xecf8427e); | |
fa358732 | 753 | |
355229fe | 754 | } else |
755 | faimdprintf(sess, 0, "sendmemblock: WARNING: unknown hash request\n"); | |
b1eac25a | 756 | |
355229fe | 757 | } |
b1eac25a | 758 | |
d410cf58 | 759 | aim_tx_enqueue(sess, fr); |
b1eac25a | 760 | |
355229fe | 761 | return 0; |
d32954e7 | 762 | } |
00ef5271 | 763 | |
d410cf58 | 764 | static int snachandler(aim_session_t *sess, aim_module_t *mod, aim_frame_t *rx, aim_modsnac_t *snac, aim_bstream_t *bs) |
00ef5271 | 765 | { |
766 | ||
355229fe | 767 | if (snac->subtype == 0x0003) |
d410cf58 | 768 | return hostonline(sess, mod, rx, snac, bs); |
355229fe | 769 | else if (snac->subtype == 0x0005) |
d410cf58 | 770 | return redirect(sess, mod, rx, snac, bs); |
355229fe | 771 | else if (snac->subtype == 0x0007) |
d410cf58 | 772 | return rateresp(sess, mod, rx, snac, bs); |
355229fe | 773 | else if (snac->subtype == 0x000a) |
d410cf58 | 774 | return ratechange(sess, mod, rx, snac, bs); |
355229fe | 775 | else if (snac->subtype == 0x000f) |
d410cf58 | 776 | return selfinfo(sess, mod, rx, snac, bs); |
355229fe | 777 | else if (snac->subtype == 0x0010) |
d410cf58 | 778 | return evilnotify(sess, mod, rx, snac, bs); |
355229fe | 779 | else if (snac->subtype == 0x0013) |
d410cf58 | 780 | return motd(sess, mod, rx, snac, bs); |
355229fe | 781 | else if (snac->subtype == 0x0018) |
d410cf58 | 782 | return hostversions(sess, mod, rx, snac, bs); |
355229fe | 783 | else if (snac->subtype == 0x001f) |
d410cf58 | 784 | return memrequest(sess, mod, rx, snac, bs); |
355229fe | 785 | |
786 | return 0; | |
00ef5271 | 787 | } |
788 | ||
d410cf58 | 789 | faim_internal int general_modfirst(aim_session_t *sess, aim_module_t *mod) |
00ef5271 | 790 | { |
791 | ||
355229fe | 792 | mod->family = 0x0001; |
793 | mod->version = 0x0000; | |
794 | mod->flags = 0; | |
795 | strncpy(mod->name, "general", sizeof(mod->name)); | |
796 | mod->snachandler = snachandler; | |
00ef5271 | 797 | |
355229fe | 798 | return 0; |
00ef5271 | 799 | } |
355229fe | 800 |