4 * This contains all the functions needed to actually login.
12 static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest);
15 * FIXME: Reimplement the TIS stuff.
17 #ifdef TIS_TELNET_PROXY
18 #include "tis_telnet_proxy.h"
21 faim_export int aim_sendconnack(struct aim_session_t *sess,
22 struct aim_conn_t *conn)
26 struct command_tx_struct *newpacket;
28 if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0001, conn, 4)))
33 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0000);
34 curbyte += aimutil_put16(newpacket->data+curbyte, 0x0001);
37 return aim_tx_enqueue(sess, newpacket);
41 * In AIM 3.5 protocol, the first stage of login is to request
42 * login from the Authorizer, passing it the screen name
43 * for verification. If the name is invalid, a 0017/0003
44 * is spit back, with the standard error contents. If valid,
45 * a 0017/0007 comes back, which is the signal to send
46 * it the main login command (0017/0002).
48 faim_export int aim_request_login(struct aim_session_t *sess,
49 struct aim_conn_t *conn,
54 struct command_tx_struct *newpacket;
56 if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+2+2+strlen(sn))))
61 curbyte += aim_putsnac(newpacket->data+curbyte, 0x0017, 0x0006, 0x0000, 0x00010000);
62 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
65 return aim_tx_enqueue(sess, newpacket);
69 * send_login(int socket, char *sn, char *password)
71 * This is the initial login request packet.
73 * The password is encoded before transmition, as per
74 * encode_password(). See that function for their
75 * stupid method of doing it.
78 faim_export int aim_send_login (struct aim_session_t *sess,
79 struct aim_conn_t *conn,
80 char *sn, char *password,
81 struct client_info_s *clientinfo,
85 md5_byte_t digest[16];
87 struct command_tx_struct *newpacket;
89 if (!clientinfo || !sn || !password)
92 if (!(newpacket = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 1152)))
97 newpacket->hdr.oscar.type = 0x02;
99 curbyte = aim_putsnac(newpacket->data+curbyte, 0x0017, 0x0002, 0x0000, 0x00010000);
101 curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
103 aim_encode_password_md5(password, key, digest);
104 curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0025, 16, (char *)digest);
106 /* XXX is clientstring required by oscar? */
107 if (strlen(clientinfo->clientstring))
108 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring);
110 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, (unsigned short)clientinfo->major2);
111 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, (unsigned short)clientinfo->major);
112 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, (unsigned short)clientinfo->minor);
113 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, (unsigned short)clientinfo->minor2);
114 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, (unsigned short)clientinfo->build);
116 curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown);
117 curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015);
119 if (strlen(clientinfo->country))
120 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country);
122 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, 2, "us");
124 if (strlen(clientinfo->lang))
125 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang);
127 curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, 2, "en");
129 newpacket->commandlen = curbyte;
132 return aim_tx_enqueue(sess, newpacket);
135 static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest)
140 md5_append(&state, (const md5_byte_t *)key, strlen(key));
141 md5_append(&state, (const md5_byte_t *)password, strlen(password));
142 md5_append(&state, (const md5_byte_t *)AIM_MD5_STRING, strlen(AIM_MD5_STRING));
143 md5_finish(&state, (md5_byte_t *)digest);
149 * int encode_password(
150 * const char *password,
154 * This takes a const pointer to a (null terminated) string
155 * containing the unencoded password. It also gets passed
156 * an already allocated buffer to store the encoded password.
157 * This buffer should be the exact length of the password without
158 * the null. The encoded password buffer IS NOT NULL TERMINATED.
160 * The encoding_table seems to be a fixed set of values. We'll
161 * hope it doesn't change over time!
163 * NOTE: This is no longer used. Its here for historical reference.
167 static int aim_encode_password(const char *password, unsigned char *encoded)
169 u_char encoding_table[] = {
170 #if 0 /* old v1 table */
171 0xf3, 0xb3, 0x6c, 0x99,
172 0x95, 0x3f, 0xac, 0xb6,
173 0xc5, 0xfa, 0x6b, 0x63,
174 0x69, 0x6c, 0xc3, 0x9f
175 #else /* v2.1 table, also works for ICQ */
176 0xf3, 0x26, 0x81, 0xc4,
177 0x39, 0x86, 0xdb, 0x92,
178 0x71, 0xa3, 0xb9, 0xe6,
179 0x53, 0x7a, 0x95, 0x7c
185 for (i = 0; i < strlen(password); i++)
186 encoded[i] = (password[i] ^ encoding_table[i]);
193 * This is sent back as a general response to the login command.
194 * It can be either an error or a success, depending on the
195 * precense of certain TLVs.
197 * The client should check the value of logininfo->errorcode. If
198 * its nonzero, there was an error.
201 faim_internal int aim_authparse(struct aim_session_t *sess,
202 struct command_rx_struct *command)
204 struct aim_tlvlist_t *tlvlist;
207 rxcallback_t userfunc = NULL;
209 memset(&sess->logininfo, 0x00, sizeof(sess->logininfo));
212 * Read block of TLVs. All further data is derived
213 * from what is parsed here.
215 * For SNAC login, there's a 17/3 SNAC header in front.
218 tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
221 * No matter what, we should have a screen name.
223 sn = aim_gettlv_str(tlvlist, 0x0001, 1);
224 strncpy(sess->logininfo.screen_name, sn, strlen(sn));
228 * Check for an error code. If so, we should also
231 if (aim_gettlv(tlvlist, 0x0008, 1)) {
232 struct aim_tlv_t *errtlv;
233 errtlv = aim_gettlv(tlvlist, 0x0008, 1);
234 sess->logininfo.errorcode = aimutil_get16(errtlv->value);
235 sess->logininfo.errorurl = aim_gettlv_str(tlvlist, 0x0004, 1);
238 * If we have both an IP number (0x0005) and a cookie (0x0006),
239 * then the login was successful.
241 else if (aim_gettlv(tlvlist, 0x0005, 1) && aim_gettlv(tlvlist, 0x0006, 1)
242 /*aim_gettlv(tlvlist, 0x0006, 1)->length*/) {
243 struct aim_tlv_t *tmptlv;
246 * IP address of BOS server.
248 sess->logininfo.BOSIP = aim_gettlv_str(tlvlist, 0x0005, 1);
251 * Authorization Cookie
253 tmptlv = aim_gettlv(tlvlist, 0x0006, 1);
254 memcpy(sess->logininfo.cookie, tmptlv->value, AIM_COOKIELEN);
257 * The email address attached to this account
258 * Not available for ICQ logins.
260 if (aim_gettlv(tlvlist, 0x0011, 1))
261 sess->logininfo.email = aim_gettlv_str(tlvlist, 0x0011, 1);
264 * The registration status. (Not real sure what it means.)
265 * Not available for ICQ logins.
267 if ((tmptlv = aim_gettlv(tlvlist, 0x0013, 1)))
268 sess->logininfo.regstatus = aimutil_get16(tmptlv->value);
272 userfunc = aim_callhandler(command->conn, 0x0017, 0x0003);
275 ret = userfunc(sess, command);
277 aim_freetlvchain(&tlvlist);
279 if (sess->logininfo.BOSIP) {
280 free(sess->logininfo.BOSIP);
281 sess->logininfo.BOSIP = NULL;
283 if (sess->logininfo.email) {
284 free(sess->logininfo.email);
285 sess->logininfo.email = NULL;
287 if (sess->logininfo.errorurl) {
288 free(sess->logininfo.errorurl);
289 sess->logininfo.errorurl = NULL;
296 * Middle handler for 0017/0007 SNACs. Contains the auth key prefixed
297 * by only its length in a two byte word.
299 * Calls the client, which should then use the value to call aim_send_login.
302 faim_internal int aim_authkeyparse(struct aim_session_t *sess, struct command_rx_struct *command)
307 rxcallback_t userfunc;
309 keylen = aimutil_get16(command->data+10);
310 if (!(key = malloc(keylen+1)))
312 memcpy(key, command->data+12, keylen);
315 if ((userfunc = aim_callhandler(command->conn, 0x0017, 0x0007)))
316 ret = userfunc(sess, command, (char *)key);
324 * Generate an authorization response.
326 * You probably don't want this unless you're writing an AIM server.
329 faim_export unsigned long aim_sendauthresp(struct aim_session_t *sess,
330 struct aim_conn_t *conn,
331 char *sn, char *bosip,
332 char *cookie, char *email,
335 struct command_tx_struct *tx;
336 struct aim_tlvlist_t *tlvlist = NULL;
338 if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0004, conn, 1152)))
344 aim_addtlvtochain_str(&tlvlist, 0x0001, sn, strlen(sn));
346 aim_addtlvtochain_str(&tlvlist, 0x0001, sess->logininfo.screen_name, strlen(sess->logininfo.screen_name));
348 if (sess->logininfo.errorcode) {
349 aim_addtlvtochain16(&tlvlist, 0x0008, sess->logininfo.errorcode);
350 aim_addtlvtochain_str(&tlvlist, 0x0004, sess->logininfo.errorurl, strlen(sess->logininfo.errorurl));
352 aim_addtlvtochain_str(&tlvlist, 0x0005, bosip, strlen(bosip));
353 aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
354 aim_addtlvtochain_str(&tlvlist, 0x0011, email, strlen(email));
355 aim_addtlvtochain16(&tlvlist, 0x0013, (unsigned short)regstatus);
358 tx->commandlen = aim_writetlvchain(tx->data, tx->commandlen, &tlvlist);
360 return aim_tx_enqueue(sess, tx);
364 * Generate a random cookie. (Non-client use only)
366 faim_export int aim_gencookie(unsigned char *buf)
372 for (i=0; i < AIM_COOKIELEN; i++)
373 buf[i] = 1+(int) (256.0*rand()/(RAND_MAX+0.0));
379 * Send Server Ready. (Non-client)
381 faim_export int aim_sendserverready(struct aim_session_t *sess, struct aim_conn_t *conn)
383 struct command_tx_struct *tx;
386 if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 10+0x22)))
391 i += aim_putsnac(tx->data, 0x0001, 0x0003, 0x0000, sess->snac_nextid++);
393 i += aimutil_put16(tx->data+i, 0x0001);
394 i += aimutil_put16(tx->data+i, 0x0002);
395 i += aimutil_put16(tx->data+i, 0x0003);
396 i += aimutil_put16(tx->data+i, 0x0004);
397 i += aimutil_put16(tx->data+i, 0x0006);
398 i += aimutil_put16(tx->data+i, 0x0008);
399 i += aimutil_put16(tx->data+i, 0x0009);
400 i += aimutil_put16(tx->data+i, 0x000a);
401 i += aimutil_put16(tx->data+i, 0x000b);
402 i += aimutil_put16(tx->data+i, 0x000c);
403 i += aimutil_put16(tx->data+i, 0x0013);
404 i += aimutil_put16(tx->data+i, 0x0015);
408 return aim_tx_enqueue(sess, tx);
413 * Send service redirect. (Non-Client)
415 faim_export unsigned long aim_sendredirect(struct aim_session_t *sess,
416 struct aim_conn_t *conn,
417 unsigned short servid,
421 struct command_tx_struct *tx;
422 struct aim_tlvlist_t *tlvlist = NULL;
425 if (!(tx = aim_tx_new(AIM_FRAMETYPE_OSCAR, 0x0002, conn, 1152)))
430 i += aim_putsnac(tx->data+i, 0x0001, 0x0005, 0x0000, 0x00000000);
432 aim_addtlvtochain16(&tlvlist, 0x000d, servid);
433 aim_addtlvtochain_str(&tlvlist, 0x0005, ip, strlen(ip));
434 aim_addtlvtochain_str(&tlvlist, 0x0006, cookie, AIM_COOKIELEN);
436 tx->commandlen = aim_writetlvchain(tx->data+i, tx->commandlen-i, &tlvlist)+i;
437 aim_freetlvchain(&tlvlist);
440 return aim_tx_enqueue(sess, tx);