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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 | ||
a25832e6 | 8 | #include <faim/aim.h> |
9de3ca7e | 9 | |
10 | ||
11 | /* | |
12 | * FIXME: Reimplement the TIS stuff. | |
13 | */ | |
14 | #ifdef TIS_TELNET_PROXY | |
15 | #include "tis_telnet_proxy.h" | |
16 | #endif | |
17 | ||
01b59e1e | 18 | int aim_sendconnack(struct aim_session_t *sess, |
19 | struct aim_conn_t *conn) | |
20 | { | |
21 | int curbyte=0; | |
22 | ||
5b79dc93 | 23 | struct command_tx_struct *newpacket; |
01b59e1e | 24 | |
5b79dc93 | 25 | if (!(newpacket = aim_tx_new(0x0001, conn, 4))) |
01b59e1e | 26 | return -1; |
27 | ||
5b79dc93 | 28 | newpacket->lock = 1; |
01b59e1e | 29 | |
5b79dc93 | 30 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); |
31 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
01b59e1e | 32 | |
5b79dc93 | 33 | newpacket->lock = 0; |
34 | return aim_tx_enqueue(sess, newpacket); | |
01b59e1e | 35 | } |
36 | ||
37 | #ifdef SNACLOGIN | |
38 | /* | |
39 | * In AIM 3.5 protocol, the first stage of login is to request | |
40 | * login from the Authorizer, passing it the screen name | |
41 | * for verification. If the name is invalid, a 0017/0003 | |
42 | * is spit back, with the standard error contents. If valid, | |
43 | * a 0017/0007 comes back, which is the signal to send | |
44 | * it the main login command (0017/0002). | |
45 | */ | |
46 | int aim_request_login(struct aim_session_t *sess, | |
47 | struct aim_conn_t *conn, | |
48 | char *sn) | |
49 | { | |
50 | int curbyte=0; | |
51 | ||
5b79dc93 | 52 | struct command_tx_struct *newpacket; |
01b59e1e | 53 | |
5b79dc93 | 54 | if (!(newpacket = aim_tx_new(0x0002, conn, 10+2+2+strlen(sn)))) |
55 | return -1; | |
01b59e1e | 56 | |
5b79dc93 | 57 | newpacket->lock = 1; |
01b59e1e | 58 | |
5b79dc93 | 59 | curbyte += aim_putsnac(newpacket->data+curbyte, 0x0017, 0x0006, 0x0000, 0x00010000); |
60 | curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn); | |
01b59e1e | 61 | |
5b79dc93 | 62 | newpacket->lock = 0; |
63 | return aim_tx_enqueue(sess, newpacket); | |
01b59e1e | 64 | } |
65 | #endif /* SNACLOGIN */ | |
66 | ||
9de3ca7e | 67 | /* |
24286d93 | 68 | * send_login(int socket, char *sn, char *password) |
9de3ca7e | 69 | * |
70 | * This is the initial login request packet. | |
71 | * | |
72 | * The password is encoded before transmition, as per | |
73 | * encode_password(). See that function for their | |
74 | * stupid method of doing it. | |
75 | * | |
9de3ca7e | 76 | */ |
a25832e6 | 77 | int aim_send_login (struct aim_session_t *sess, |
78 | struct aim_conn_t *conn, | |
79 | char *sn, char *password, struct client_info_s *clientinfo) | |
9de3ca7e | 80 | { |
a25832e6 | 81 | u_char *password_encoded = NULL; /* to store encoded password */ |
9de3ca7e | 82 | int curbyte=0; |
83 | ||
5b79dc93 | 84 | struct command_tx_struct *newpacket; |
9de3ca7e | 85 | |
01b59e1e | 86 | if (!clientinfo || !sn || !password) |
87 | return -1; | |
88 | ||
5b79dc93 | 89 | if (!(newpacket = aim_tx_new(0x0002, conn, 1152))) |
90 | return -1; | |
9de3ca7e | 91 | |
01b59e1e | 92 | #ifdef SNACLOGIN |
5b79dc93 | 93 | newpacket->commandlen = 10; |
94 | newpacket->commandlen += 2 + 2 + strlen(sn); | |
95 | newpacket->commandlen += 2 + 2 + strlen(password); | |
96 | newpacket->commandlen += 2 + 2 + strlen(clientinfo->clientstring); | |
97 | newpacket->commandlen += 56; | |
01b59e1e | 98 | |
5b79dc93 | 99 | newpacket->lock = 1; |
01b59e1e | 100 | |
5b79dc93 | 101 | curbyte = aim_putsnac(newpacket->data+curbyte, 0x0017, 0x0002, 0x0000, 0x00010000); |
102 | curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn); | |
01b59e1e | 103 | password_encoded = (u_char *) malloc(strlen(password)); |
104 | aim_encode_password(password, password_encoded); | |
5b79dc93 | 105 | curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0002, strlen(password), password_encoded); |
106 | curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0003, | |
01b59e1e | 107 | strlen(clientinfo->clientstring), |
108 | clientinfo->clientstring); | |
109 | /* XXX: should use clientinfo provided version info */ | |
5b79dc93 | 110 | curbyte+= aim_puttlv_16(newpacket->data+curbyte, 0x0016, 0x0004); |
111 | curbyte+= aim_puttlv_16(newpacket->data+curbyte, 0x0017, 0x0003); | |
112 | curbyte+= aim_puttlv_16(newpacket->data+curbyte, 0x0018, 0x0005); | |
113 | curbyte+= aim_puttlv_16(newpacket->data+curbyte, 0x0019, 0x0000); | |
114 | curbyte+= aim_puttlv_16(newpacket->data+curbyte, 0x001a, 0x0686); | |
115 | curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0001, 0x0002, clientinfo->country); | |
116 | curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0001, 0x0002, clientinfo->lang); | |
117 | curbyte+= aim_puttlv_32(newpacket->data+curbyte, 0x0014, 0x0000002a); | |
118 | curbyte+= aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015); | |
01b59e1e | 119 | #else |
120 | ||
5b79dc93 | 121 | newpacket->commandlen = 4 + 4+strlen(sn) + 4+strlen(password) + 6; |
24286d93 | 122 | |
5b79dc93 | 123 | if (clientinfo) { |
124 | if (strlen(clientinfo->clientstring)) | |
125 | newpacket->commandlen += 4+strlen(clientinfo->clientstring); | |
126 | newpacket->commandlen += 6+6+6+6; | |
127 | if (strlen(clientinfo->country)) | |
128 | newpacket->commandlen += 4+strlen(clientinfo->country); | |
129 | if (strlen(clientinfo->lang)) | |
130 | newpacket->commandlen += 4+strlen(clientinfo->lang); | |
131 | } | |
132 | newpacket->commandlen += 6; | |
9de3ca7e | 133 | |
5b79dc93 | 134 | newpacket->lock = 1; |
135 | newpacket->type = 0x01; | |
9de3ca7e | 136 | |
5b79dc93 | 137 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000); |
138 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
139 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001); | |
140 | curbyte += aimutil_put16(newpacket->data+curbyte, strlen(sn)); | |
141 | curbyte += aimutil_putstr(newpacket->data+curbyte, sn, strlen(sn)); | |
9de3ca7e | 142 | |
5b79dc93 | 143 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0002); |
144 | curbyte += aimutil_put16(newpacket->data+curbyte, strlen(password)); | |
9de3ca7e | 145 | password_encoded = (char *) malloc(strlen(password)); |
146 | aim_encode_password(password, password_encoded); | |
5b79dc93 | 147 | curbyte += aimutil_putstr(newpacket->data+curbyte, password_encoded, strlen(password)); |
9de3ca7e | 148 | free(password_encoded); |
149 | ||
5b79dc93 | 150 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, 0x0004); |
24286d93 | 151 | |
5b79dc93 | 152 | if (clientinfo) { |
153 | if (strlen(clientinfo->clientstring)) { | |
154 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x0003); | |
155 | curbyte += aimutil_put16(newpacket->data+curbyte, strlen(clientinfo->clientstring)); | |
156 | curbyte += aimutil_putstr(newpacket->data+curbyte, clientinfo->clientstring, strlen(clientinfo->clientstring)); | |
9de3ca7e | 157 | } |
5b79dc93 | 158 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, clientinfo->major /*0x0001*/); |
159 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, clientinfo->minor /*0x0001*/); | |
160 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, 0x0000); | |
161 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, clientinfo->build /*0x0013*/); | |
162 | if (strlen(clientinfo->country)) { | |
163 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x000e); | |
164 | curbyte += aimutil_put16(newpacket->data+curbyte, strlen(clientinfo->country)); | |
165 | curbyte += aimutil_putstr(newpacket->data+curbyte, clientinfo->country, strlen(clientinfo->country)); | |
166 | } | |
167 | if (strlen(clientinfo->lang)) { | |
168 | curbyte += aimutil_put16(newpacket->data+curbyte, 0x000f); | |
169 | curbyte += aimutil_put16(newpacket->data+curbyte, strlen(clientinfo->lang)); | |
170 | curbyte += aimutil_putstr(newpacket->data+curbyte, clientinfo->lang, strlen(clientinfo->lang)); | |
171 | } | |
172 | } | |
9de3ca7e | 173 | |
5b79dc93 | 174 | curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015); |
01b59e1e | 175 | #endif |
9de3ca7e | 176 | |
5b79dc93 | 177 | newpacket->lock = 0; |
178 | return aim_tx_enqueue(sess, newpacket); | |
9de3ca7e | 179 | } |
9de3ca7e | 180 | |
181 | /* | |
182 | * int encode_password( | |
183 | * const char *password, | |
184 | * char *encoded | |
185 | * ); | |
186 | * | |
187 | * This takes a const pointer to a (null terminated) string | |
188 | * containing the unencoded password. It also gets passed | |
189 | * an already allocated buffer to store the encoded password. | |
190 | * This buffer should be the exact length of the password without | |
191 | * the null. The encoded password buffer IS NOT NULL TERMINATED. | |
192 | * | |
193 | * The encoding_table seems to be a fixed set of values. We'll | |
194 | * hope it doesn't change over time! | |
195 | * | |
196 | */ | |
a25832e6 | 197 | int aim_encode_password(const char *password, u_char *encoded) |
9de3ca7e | 198 | { |
199 | u_char encoding_table[] = { | |
200 | 0xf3, 0xb3, 0x6c, 0x99, | |
201 | 0x95, 0x3f, 0xac, 0xb6, | |
202 | 0xc5, 0xfa, 0x6b, 0x63, | |
203 | 0x69, 0x6c, 0xc3, 0x9f | |
204 | }; | |
205 | ||
206 | int i; | |
207 | ||
208 | for (i = 0; i < strlen(password); i++) | |
209 | encoded[i] = (password[i] ^ encoding_table[i]); | |
210 | ||
211 | return 0; | |
212 | } | |
213 | ||
01b59e1e | 214 | /* |
215 | * This is sent back as a general response to the login command. | |
216 | * It can be either an error or a success, depending on the | |
217 | * precense of certain TLVs. | |
218 | * | |
219 | * The client should check the value of logininfo->errorcode. If | |
220 | * its nonzero, there was an error. | |
221 | * | |
222 | */ | |
223 | int aim_authparse(struct aim_session_t *sess, | |
224 | struct command_rx_struct *command) | |
225 | { | |
226 | struct aim_tlvlist_t *tlvlist; | |
227 | int ret = 1; | |
228 | char *sn; | |
229 | rxcallback_t userfunc = NULL; | |
230 | ||
231 | memset(&sess->logininfo, 0x00, sizeof(sess->logininfo)); | |
232 | ||
233 | /* | |
234 | * Read block of TLVs. All further data is derived | |
235 | * from what is parsed here. | |
236 | */ | |
237 | #ifdef SNACLOGIN | |
238 | tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10); | |
239 | #else | |
240 | tlvlist = aim_readtlvchain(command->data, command->commandlen); | |
241 | #endif | |
242 | /* | |
243 | * No matter what, we should have a screen name. | |
244 | */ | |
245 | sn = aim_gettlv_str(tlvlist, 0x0001, 1); | |
246 | memcpy(sess->logininfo.screen_name, sn, strlen(sn)); | |
247 | sn[(strlen(sn))] = '\0'; | |
248 | ||
249 | /* | |
250 | * Check for an error code. If so, we should also | |
251 | * have an error url. | |
252 | */ | |
253 | if (aim_gettlv(tlvlist, 0x0008, 1)) | |
254 | { | |
255 | struct aim_tlv_t *errtlv; | |
256 | errtlv = aim_gettlv(tlvlist, 0x0008, 1); | |
257 | sess->logininfo.errorcode = aimutil_get16(errtlv->value); | |
258 | sess->logininfo.errorurl = aim_gettlv_str(tlvlist, 0x0004, 1); | |
259 | } | |
260 | /* | |
261 | * If we have both an IP number (0x0005) and a cookie (0x0006), | |
262 | * then the login was successful. | |
263 | */ | |
264 | else if (aim_gettlv(tlvlist, 0x0005, 1) && aim_gettlv(tlvlist, 0x0006, 1)) | |
265 | { | |
266 | struct aim_tlv_t *tmptlv; | |
9de3ca7e | 267 | |
01b59e1e | 268 | /* |
269 | * IP address of BOS server. | |
270 | */ | |
271 | sess->logininfo.BOSIP = aim_gettlv_str(tlvlist, 0x0005, 1); | |
9de3ca7e | 272 | |
01b59e1e | 273 | /* |
274 | * Authorization Cookie | |
275 | */ | |
276 | tmptlv = aim_gettlv(tlvlist, 0x0006, 1); | |
277 | memcpy(sess->logininfo.cookie, tmptlv->value, AIM_COOKIELEN); | |
9de3ca7e | 278 | |
01b59e1e | 279 | /* |
280 | * The email address attached to this account | |
281 | */ | |
282 | sess->logininfo.email = aim_gettlv_str(tlvlist, 0x0011, 1); | |
283 | ||
284 | /* | |
285 | * The registration status. (Not real sure what it means.) | |
286 | */ | |
287 | tmptlv = aim_gettlv(tlvlist, 0x0013, 1); | |
288 | sess->logininfo.regstatus = aimutil_get16(tmptlv->value); | |
289 | ||
290 | } | |
291 | ||
292 | #ifdef SNACLOGIN | |
293 | userfunc = aim_callhandler(command->conn, 0x0017, 0x0003); | |
294 | #else | |
295 | userfunc = aim_callhandler(command->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_AUTHSUCCESS); | |
296 | #endif | |
297 | if (userfunc) | |
298 | ret = userfunc(sess, command); | |
299 | ||
300 | aim_freetlvchain(&tlvlist); | |
301 | ||
302 | /* These have been clobbered by the freetlvchain */ | |
303 | sess->logininfo.BOSIP = NULL; | |
304 | sess->logininfo.email = NULL; | |
305 | sess->logininfo.errorurl = NULL; | |
306 | ||
307 | return ret; | |
308 | } | |
e6b05d80 | 309 | |
310 | /* | |
311 | * Generate an authorization response. | |
312 | * | |
313 | * You probably don't want this unless you're writing an AIM server. | |
314 | * | |
315 | */ | |
316 | unsigned long aim_sendauthresp(struct aim_session_t *sess, | |
317 | struct aim_conn_t *conn, | |
318 | char *sn, char *bosip, | |
319 | char *cookie, char *email, | |
320 | int regstatus) | |
321 | { | |
5b79dc93 | 322 | struct command_tx_struct *tx; |
e6b05d80 | 323 | struct aim_tlvlist_t *tlvlist = NULL; |
324 | ||
67c0bb2f | 325 | if (!(tx = aim_tx_new(0x0004, conn, 1152))) |
5b79dc93 | 326 | return -1; |
e6b05d80 | 327 | |
5b79dc93 | 328 | tx->lock = 1; |
e6b05d80 | 329 | |
330 | if (sn) | |
331 | aim_addtlvtochain_str(&tlvlist, 0x0001, sn, strlen(sn)); | |
332 | else | |
333 | aim_addtlvtochain_str(&tlvlist, 0x0001, sess->logininfo.screen_name, strlen(sess->logininfo.screen_name)); | |
334 | ||
335 | if (sess->logininfo.errorcode) { | |
336 | aim_addtlvtochain16(&tlvlist, 0x0008, sess->logininfo.errorcode); | |
337 | aim_addtlvtochain_str(&tlvlist, 0x0004, sess->logininfo.errorurl, strlen(sess->logininfo.errorurl)); | |
338 | } else { | |
339 | aim_addtlvtochain_str(&tlvlist, 0x0005, bosip, strlen(bosip)); | |
340 | aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN); | |
341 | aim_addtlvtochain_str(&tlvlist, 0x0011, email, strlen(email)); | |
342 | aim_addtlvtochain16(&tlvlist, 0x0013, regstatus); | |
343 | } | |
344 | ||
5b79dc93 | 345 | tx->commandlen = aim_writetlvchain(tx->data, tx->commandlen, &tlvlist); |
346 | tx->lock = 0; | |
347 | return aim_tx_enqueue(sess, tx); | |
e6b05d80 | 348 | } |
349 | ||
350 | /* | |
351 | * Generate a random cookie. (Non-client use only) | |
352 | */ | |
353 | int aim_gencookie(unsigned char *buf) | |
354 | { | |
355 | int i; | |
356 | ||
357 | srand(time(NULL)); | |
358 | ||
359 | for (i=0; i < AIM_COOKIELEN; i++) | |
360 | buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0)); | |
361 | ||
362 | return i; | |
363 | } | |
364 | ||
365 | /* | |
366 | * Send Server Ready. (Non-client) | |
367 | */ | |
368 | int aim_sendserverready(struct aim_session_t *sess, struct aim_conn_t *conn) | |
369 | { | |
5b79dc93 | 370 | struct command_tx_struct *tx; |
e6b05d80 | 371 | int i = 0; |
372 | ||
67c0bb2f | 373 | if (!(tx = aim_tx_new(0x0002, conn, 10+0x22))) |
5b79dc93 | 374 | return -1; |
e6b05d80 | 375 | |
5b79dc93 | 376 | tx->lock = 1; |
e6b05d80 | 377 | |
67c0bb2f | 378 | i += aim_putsnac(tx->data, 0x0001, 0x0003, 0x0000, sess->snac_nextid++); |
5b79dc93 | 379 | |
380 | i += aimutil_put16(tx->data+i, 0x0001); | |
381 | i += aimutil_put16(tx->data+i, 0x0002); | |
382 | i += aimutil_put16(tx->data+i, 0x0003); | |
383 | i += aimutil_put16(tx->data+i, 0x0004); | |
384 | i += aimutil_put16(tx->data+i, 0x0006); | |
385 | i += aimutil_put16(tx->data+i, 0x0008); | |
386 | i += aimutil_put16(tx->data+i, 0x0009); | |
387 | i += aimutil_put16(tx->data+i, 0x000a); | |
388 | i += aimutil_put16(tx->data+i, 0x000b); | |
389 | i += aimutil_put16(tx->data+i, 0x000c); | |
67c0bb2f | 390 | i += aimutil_put16(tx->data+i, 0x0013); |
391 | i += aimutil_put16(tx->data+i, 0x0015); | |
5b79dc93 | 392 | |
67c0bb2f | 393 | tx->commandlen = i; |
5b79dc93 | 394 | tx->lock = 0; |
5b79dc93 | 395 | return aim_tx_enqueue(sess, tx); |
e6b05d80 | 396 | } |
397 | ||
398 | ||
399 | /* | |
400 | * Send service redirect. (Non-Client) | |
401 | */ | |
402 | unsigned long aim_sendredirect(struct aim_session_t *sess, | |
403 | struct aim_conn_t *conn, | |
404 | unsigned short servid, | |
405 | char *ip, | |
406 | char *cookie) | |
407 | { | |
5b79dc93 | 408 | struct command_tx_struct *tx; |
e6b05d80 | 409 | struct aim_tlvlist_t *tlvlist = NULL; |
410 | int i = 0; | |
411 | ||
5b79dc93 | 412 | if (!(tx = aim_tx_new(0x0002, conn, 1152))) |
413 | return -1; | |
414 | ||
415 | tx->lock = 1; | |
e6b05d80 | 416 | |
5b79dc93 | 417 | i += aimutil_put16(tx->data+i, 0x0001); |
418 | i += aimutil_put16(tx->data+i, 0x0005); | |
419 | i += aimutil_put16(tx->data+i, 0x0000); | |
420 | i += aimutil_put16(tx->data+i, 0x0000); | |
421 | i += aimutil_put16(tx->data+i, 0x0000); | |
e6b05d80 | 422 | |
423 | aim_addtlvtochain16(&tlvlist, 0x000d, servid); | |
424 | aim_addtlvtochain_str(&tlvlist, 0x0005, ip, strlen(ip)); | |
425 | aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN); | |
426 | ||
5b79dc93 | 427 | tx->commandlen = aim_writetlvchain(tx->data+i, tx->commandlen-i, &tlvlist)+i; |
e6b05d80 | 428 | aim_freetlvchain(&tlvlist); |
429 | ||
5b79dc93 | 430 | tx->lock = 0; |
431 | return aim_tx_enqueue(sess, tx); | |
e6b05d80 | 432 | } |