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;
+}
andersk / libfaim.git / blobdiff