--- a/libfaim/login.c Mon Mar 26 10:29:06 2001 +0000
+++ b/libfaim/login.c Tue Mar 27 00:51:09 2001 +0000
@@ -10,7 +10,6 @@
#include "md5.h"
-static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest);
static int aim_encode_password(const char *password, unsigned char *encoded);
faim_export int aim_sendconnack(struct aim_session_t *sess,
@@ -137,6 +136,16 @@
* lang = "en"
* country = "us"
* unknown4a = 0x01
+ *
+ * Latest WinAIM that libfaim can emulate without server-side buddylists:
+ * clientstring = "AOL Instant Messenger (SM), version 3.5.1670/WIN32"
+ * major2 = 0x0004
+ * major = 0x0003
+ * minor = 0x0005
+ * minor2 = 0x0000
+ * build = 0x0686
+ * unknown =0x0000002a
+ *
*/
faim_export int aim_send_login (struct aim_session_t *sess,
struct aim_conn_t *conn,
@@ -167,7 +176,7 @@
curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0001, strlen(sn), sn);
if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
- md5_byte_t digest[16];
+ unsigned char digest[16];
aim_encode_password_md5(password, key, digest);
curbyte+= aim_puttlv_str(newpacket->data+curbyte, 0x0025, 16, (char *)digest);
@@ -180,20 +189,16 @@
free(password_encoded);
}
- /* XXX is clientstring required by oscar? */
- if (strlen(clientinfo->clientstring))
- curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring);
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x0003, strlen(clientinfo->clientstring), clientinfo->clientstring);
if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
+
curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, (unsigned short)clientinfo->major2);
curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0017, (unsigned short)clientinfo->major);
curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0018, (unsigned short)clientinfo->minor);
curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0019, (unsigned short)clientinfo->minor2);
curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x001a, (unsigned short)clientinfo->build);
- curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown);
- curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015);
- curbyte += aim_puttlv_8(newpacket->data+curbyte, 0x004a, 0x00);
} else {
/* Use very specific version numbers, to further indicate the hack. */
curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0016, 0x010a);
@@ -204,23 +209,21 @@
curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, 0x00000055);
}
- if (strlen(clientinfo->country))
- curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country);
- else
- curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, 2, "us");
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000e, strlen(clientinfo->country), clientinfo->country);
+ curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang);
+
+ if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN) {
+ curbyte += aim_puttlv_32(newpacket->data+curbyte, 0x0014, clientinfo->unknown);
+ curbyte += aim_puttlv_16(newpacket->data+curbyte, 0x0009, 0x0015);
+ }
- if (strlen(clientinfo->lang))
- curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, strlen(clientinfo->lang), clientinfo->lang);
- else
- curbyte += aim_puttlv_str(newpacket->data+curbyte, 0x000f, 2, "en");
-
newpacket->commandlen = curbyte;
newpacket->lock = 0;
return aim_tx_enqueue(sess, newpacket);
}
-static int aim_encode_password_md5(const char *password, const char *key, md5_byte_t *digest)
+faim_export int aim_encode_password_md5(const char *password, const char *key, unsigned char *digest)
{
md5_state_t state;
@@ -275,182 +278,6 @@
}
/*
- * This is sent back as a general response to the login command.
- * It can be either an error or a success, depending on the
- * precense of certain TLVs.
- *
- * The client should check the value passed as errorcode. If
- * its nonzero, there was an error.
- *
- */
-faim_internal int aim_authparse(struct aim_session_t *sess,
- struct command_rx_struct *command)
-{
- struct aim_tlvlist_t *tlvlist;
- int ret = 1;
- rxcallback_t userfunc = NULL;
- char *sn = NULL, *bosip = NULL, *errurl = NULL, *email = NULL;
- unsigned char *cookie = NULL;
- int errorcode = 0, regstatus = 0;
- int latestbuild = 0, latestbetabuild = 0;
- char *latestrelease = NULL, *latestbeta = NULL;
- char *latestreleaseurl = NULL, *latestbetaurl = NULL;
- char *latestreleaseinfo = NULL, *latestbetainfo = NULL;
-
- /*
- * Read block of TLVs. All further data is derived
- * from what is parsed here.
- *
- * For SNAC login, there's a 17/3 SNAC header in front.
- *
- */
- if (sess->flags & AIM_SESS_FLAGS_SNACLOGIN)
- tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
- else
- tlvlist = aim_readtlvchain(command->data, command->commandlen);
-
- /*
- * No matter what, we should have a screen name.
- */
- memset(sess->sn, 0, sizeof(sess->sn));
- if (aim_gettlv(tlvlist, 0x0001, 1)) {
- sn = aim_gettlv_str(tlvlist, 0x0001, 1);
- strncpy(sess->sn, sn, sizeof(sess->sn));
- }
-
- /*
- * Check for an error code. If so, we should also
- * have an error url.
- */
- if (aim_gettlv(tlvlist, 0x0008, 1))
- errorcode = aim_gettlv16(tlvlist, 0x0008, 1);
- if (aim_gettlv(tlvlist, 0x0004, 1))
- errurl = aim_gettlv_str(tlvlist, 0x0004, 1);
-
- /*
- * BOS server address.
- */
- if (aim_gettlv(tlvlist, 0x0005, 1))
- bosip = aim_gettlv_str(tlvlist, 0x0005, 1);
-
- /*
- * Authorization cookie.
- */
- if (aim_gettlv(tlvlist, 0x0006, 1)) {
- struct aim_tlv_t *tmptlv;
-
- tmptlv = aim_gettlv(tlvlist, 0x0006, 1);
-
- if ((cookie = malloc(tmptlv->length)))
- memcpy(cookie, tmptlv->value, tmptlv->length);
- }
-
- /*
- * The email address attached to this account
- * Not available for ICQ logins.
- */
- if (aim_gettlv(tlvlist, 0x0011, 1))
- email = aim_gettlv_str(tlvlist, 0x0011, 1);
-
- /*
- * The registration status. (Not real sure what it means.)
- * Not available for ICQ logins.
- *
- * 1 = No disclosure
- * 2 = Limited disclosure
- * 3 = Full disclosure
- *
- * This has to do with whether your email address is available
- * to other users or not. AFAIK, this feature is no longer used.
- *
- */
- if (aim_gettlv(tlvlist, 0x0013, 1))
- regstatus = aim_gettlv16(tlvlist, 0x0013, 1);
-
- if (aim_gettlv(tlvlist, 0x0040, 1))
- latestbetabuild = aim_gettlv32(tlvlist, 0x0040, 1);
- if (aim_gettlv(tlvlist, 0x0041, 1))
- latestbetaurl = aim_gettlv_str(tlvlist, 0x0041, 1);
- if (aim_gettlv(tlvlist, 0x0042, 1))
- latestbetainfo = aim_gettlv_str(tlvlist, 0x0042, 1);
- if (aim_gettlv(tlvlist, 0x0043, 1))
- latestbeta = aim_gettlv_str(tlvlist, 0x0043, 1);
- if (aim_gettlv(tlvlist, 0x0048, 1))
- ; /* no idea what this is */
-
- if (aim_gettlv(tlvlist, 0x0044, 1))
- latestbuild = aim_gettlv32(tlvlist, 0x0044, 1);
- if (aim_gettlv(tlvlist, 0x0045, 1))
- latestreleaseurl = aim_gettlv_str(tlvlist, 0x0045, 1);
- if (aim_gettlv(tlvlist, 0x0046, 1))
- latestreleaseinfo = aim_gettlv_str(tlvlist, 0x0046, 1);
- if (aim_gettlv(tlvlist, 0x0047, 1))
- latestrelease = aim_gettlv_str(tlvlist, 0x0047, 1);
- if (aim_gettlv(tlvlist, 0x0049, 1))
- ; /* no idea what this is */
-
-
- if ((userfunc = aim_callhandler(sess, command->conn, 0x0017, 0x0003)))
- ret = userfunc(sess, command, sn, errorcode, errurl, regstatus, email, bosip, cookie, latestrelease, latestbuild, latestreleaseurl, latestreleaseinfo, latestbeta, latestbetabuild, latestbetaurl, latestbetainfo);
-
-
- if (sn)
- free(sn);
- if (bosip)
- free(bosip);
- if (errurl)
- free(errurl);
- if (email)
- free(email);
- if (cookie)
- free(cookie);
- if (latestrelease)
- free(latestrelease);
- if (latestreleaseurl)
- free(latestreleaseurl);
- if (latestbeta)
- free(latestbeta);
- if (latestbetaurl)
- free(latestbetaurl);
- if (latestreleaseinfo)
- free(latestreleaseinfo);
- if (latestbetainfo)
- free(latestbetainfo);
-
- aim_freetlvchain(&tlvlist);
-
- return ret;
-}
-
-/*
- * Middle handler for 0017/0007 SNACs. Contains the auth key prefixed
- * by only its length in a two byte word.
- *
- * Calls the client, which should then use the value to call aim_send_login.
- *
- */
-faim_internal int aim_authkeyparse(struct aim_session_t *sess, struct command_rx_struct *command)
-{
- unsigned char *key;
- int keylen;
- int ret = 1;
- rxcallback_t userfunc;
-
- keylen = aimutil_get16(command->data+10);
- if (!(key = malloc(keylen+1)))
- return ret;
- memcpy(key, command->data+12, keylen);
- key[keylen] = '\0';
-
- if ((userfunc = aim_callhandler(sess, command->conn, 0x0017, 0x0007)))
- ret = userfunc(sess, command, (char *)key);
-
- free(key);
-
- return ret;
-}
-
-/*
* Generate an authorization response.
*
* You probably don't want this unless you're writing an AIM server.
@@ -571,3 +398,285 @@
tx->lock = 0;
return aim_tx_enqueue(sess, tx);
}
+
+
+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)
+{
+ rxcallback_t userfunc;
+ int ret = 0;
+ unsigned short *families;
+ int famcount, i;
+
+ famcount = datalen/2;
+
+ if (!(families = malloc(datalen)))
+ return 0;
+
+ for (i = 0; i < famcount; i++)
+ families[i] = aimutil_get16(data+(i*2));
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ ret = userfunc(sess, rx, famcount, families);
+
+ free(families);
+
+ return ret;
+}
+
+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)
+{
+ int serviceid;
+ unsigned char *cookie;
+ char *ip;
+ rxcallback_t userfunc;
+ struct aim_tlvlist_t *tlvlist;
+ char *chathack = NULL;
+ int chathackex = 0;
+ int ret = 0;
+
+ tlvlist = aim_readtlvchain(data, datalen);
+
+ if (!aim_gettlv(tlvlist, 0x000d, 1) ||
+ !aim_gettlv(tlvlist, 0x0005, 1) ||
+ !aim_gettlv(tlvlist, 0x0006, 1)) {
+ aim_freetlvchain(&tlvlist);
+ return 0;
+ }
+
+ serviceid = aim_gettlv16(tlvlist, 0x000d, 1);
+ ip = aim_gettlv_str(tlvlist, 0x0005, 1);
+ cookie = aim_gettlv_str(tlvlist, 0x0006, 1);
+
+ /*
+ * Chat hack.
+ *
+ */
+ if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) {
+ chathack = sess->pendingjoin;
+ chathackex = sess->pendingjoinexchange;
+ sess->pendingjoin = NULL;
+ sess->pendingjoinexchange = 0;
+ }
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ ret = userfunc(sess, rx, serviceid, ip, cookie, chathack, chathackex);
+
+ free(ip);
+ free(cookie);
+ free(chathack);
+
+ aim_freetlvchain(&tlvlist);
+
+ return ret;
+}
+
+/*
+ * The Rate Limiting System, An Abridged Guide to Nonsense.
+ *
+ * OSCAR defines several 'rate classes'. Each class has seperate
+ * rate limiting properties (limit level, alert level, disconnect
+ * level, etc), and a set of SNAC family/type pairs associated with
+ * it. The rate classes, their limiting properties, and the definitions
+ * of which SNACs are belong to which class, are defined in the
+ * Rate Response packet at login to each host.
+ *
+ * Logically, all rate offenses within one class count against further
+ * offenses for other SNACs in the same class (ie, sending messages
+ * too fast will limit the number of user info requests you can send,
+ * since those two SNACs are in the same rate class).
+ *
+ * Since the rate classes are defined dynamically at login, the values
+ * below may change. But they seem to be fairly constant.
+ *
+ * Currently, BOS defines five rate classes, with the commonly used
+ * members as follows...
+ *
+ * Rate class 0x0001:
+ * - Everything thats not in any of the other classes
+ *
+ * Rate class 0x0002:
+ * - Buddy list add/remove
+ * - Permit list add/remove
+ * - Deny list add/remove
+ *
+ * Rate class 0x0003:
+ * - User information requests
+ * - Outgoing ICBMs
+ *
+ * Rate class 0x0004:
+ * - A few unknowns: 2/9, 2/b, and f/2
+ *
+ * Rate class 0x0005:
+ * - Chat room create
+ * - Outgoing chat ICBMs
+ *
+ * The only other thing of note is that class 5 (chat) has slightly looser
+ * limiting properties than class 3 (normal messages). But thats just a
+ * small bit of trivia for you.
+ *
+ * The last thing that needs to be learned about the rate limiting
+ * system is how the actual numbers relate to the passing of time. This
+ * seems to be a big mystery.
+ *
+ */
+
+/* XXX parse this */
+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)
+{
+ rxcallback_t userfunc;
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ return userfunc(sess, rx);
+
+ return 0;
+}
+
+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)
+{
+ rxcallback_t userfunc;
+ int i = 0, code;
+ unsigned long currentavg, maxavg;
+ unsigned long rateclass, windowsize, clear, alert, limit, disconnect;
+
+ code = aimutil_get16(data+i);
+ i += 2;
+
+ rateclass = aimutil_get16(data+i);
+ i += 2;
+
+ windowsize = aimutil_get32(data+i);
+ i += 4;
+ clear = aimutil_get32(data+i);
+ i += 4;
+ alert = aimutil_get32(data+i);
+ i += 4;
+ limit = aimutil_get32(data+i);
+ i += 4;
+ disconnect = aimutil_get32(data+i);
+ i += 4;
+ currentavg = aimutil_get32(data+i);
+ i += 4;
+ maxavg = aimutil_get32(data+i);
+ i += 4;
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ return userfunc(sess, rx, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg);
+
+ return 0;
+}
+
+/* XXX parse this */
+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)
+{
+ rxcallback_t userfunc;
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ return userfunc(sess, rx);
+
+ return 0;
+}
+
+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)
+{
+ rxcallback_t userfunc = NULL;
+ int i = 0;
+ unsigned short newevil;
+ struct aim_userinfo_s userinfo;
+
+ newevil = aimutil_get16(data);
+ i += 2;
+
+ memset(&userinfo, 0, sizeof(struct aim_userinfo_s));
+
+ if (datalen-i)
+ i += aim_extractuserinfo(sess, data+i, &userinfo);
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ return userfunc(sess, rx, newevil, &userinfo);
+
+ return 0;
+}
+
+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)
+{
+ rxcallback_t userfunc;
+ char *msg = NULL;
+ int ret = 0;
+ struct aim_tlvlist_t *tlvlist;
+ unsigned short id;
+
+ /*
+ * Code.
+ *
+ * Valid values:
+ * 1 Mandatory upgrade
+ * 2 Advisory upgrade
+ * 3 System bulletin
+ * 4 Nothing's wrong ("top o the world" -- normal)
+ *
+ */
+ id = aimutil_get16(data);
+
+ /*
+ * TLVs follow
+ */
+ if ((tlvlist = aim_readtlvchain(data+2, datalen-2)))
+ msg = aim_gettlv_str(tlvlist, 0x000b, 1);
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ ret = userfunc(sess, rx, id, msg);
+
+ free(msg);
+
+ aim_freetlvchain(&tlvlist);
+
+ return ret;
+}
+
+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)
+{
+ rxcallback_t userfunc;
+ int vercount;
+
+ vercount = datalen/4;
+
+ if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
+ return userfunc(sess, rx, vercount, data);
+
+ return 0;
+}
+
+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)
+{
+
+ if (snac->subtype == 0x0003)
+ return hostonline(sess, mod, rx, snac, data, datalen);
+ else if (snac->subtype == 0x0005)
+ return redirect(sess, mod, rx, snac, data, datalen);
+ else if (snac->subtype == 0x0007)
+ return rateresp(sess, mod, rx, snac, data, datalen);
+ else if (snac->subtype == 0x000a)
+ return ratechange(sess, mod, rx, snac, data, datalen);
+ else if (snac->subtype == 0x000f)
+ return selfinfo(sess, mod, rx, snac, data, datalen);
+ else if (snac->subtype == 0x0010)
+ return evilnotify(sess, mod, rx, snac, data, datalen);
+ else if (snac->subtype == 0x0013)
+ return motd(sess, mod, rx, snac, data, datalen);
+ else if (snac->subtype == 0x0018)
+ return hostversions(sess, mod, rx, snac, data, datalen);
+
+ return 0;
+}
+
+faim_internal int general_modfirst(struct aim_session_t *sess, aim_module_t *mod)
+{
+
+ mod->family = 0x0001;
+ mod->version = 0x0000;
+ mod->flags = 0;
+ strncpy(mod->name, "general", sizeof(mod->name));
+ mod->snachandler = snachandler;
+
+ return 0;
+}