--- /dev/null
+/*
+ * aim_rxhandlers.c
+ *
+ * This file contains most all of the incoming packet handlers, along
+ * with aim_rxdispatch(), the Rx dispatcher. Queue/list management is
+ * actually done in aim_rxqueue.c.
+ *
+ */
+
+#define FAIM_INTERNAL
+#include <aim.h>
+
+/*
+ * Bleck functions get called when there's no non-bleck functions
+ * around to cleanup the mess...
+ */
+faim_internal int bleck(struct aim_session_t *sess,struct command_rx_struct *workingPtr, ...)
+{
+ u_short family;
+ u_short subtype;
+
+ u_short maxf;
+ u_short maxs;
+
+ /* XXX: this is ugly. and big just for debugging. */
+ char *literals[14][25] = {
+ {"Invalid",
+ NULL
+ },
+ {"General",
+ "Invalid",
+ "Error",
+ "Client Ready",
+ "Server Ready",
+ "Service Request",
+ "Redirect",
+ "Rate Information Request",
+ "Rate Information",
+ "Rate Information Ack",
+ NULL,
+ "Rate Information Change",
+ "Server Pause",
+ NULL,
+ "Server Resume",
+ "Request Personal User Information",
+ "Personal User Information",
+ "Evil Notification",
+ NULL,
+ "Migration notice",
+ "Message of the Day",
+ "Set Privacy Flags",
+ "Well Known URL",
+ "NOP"
+ },
+ {"Location",
+ "Invalid",
+ "Error",
+ "Request Rights",
+ "Rights Information",
+ "Set user information",
+ "Request User Information",
+ "User Information",
+ "Watcher Sub Request",
+ "Watcher Notification"
+ },
+ {"Buddy List Management",
+ "Invalid",
+ "Error",
+ "Request Rights",
+ "Rights Information",
+ "Add Buddy",
+ "Remove Buddy",
+ "Watcher List Query",
+ "Watcher List Response",
+ "Watcher SubRequest",
+ "Watcher Notification",
+ "Reject Notification",
+ "Oncoming Buddy",
+ "Offgoing Buddy"
+ },
+ {"Messeging",
+ "Invalid",
+ "Error",
+ "Add ICBM Parameter",
+ "Remove ICBM Parameter",
+ "Request Parameter Information",
+ "Parameter Information",
+ "Outgoing Message",
+ "Incoming Message",
+ "Evil Request",
+ "Evil Reply",
+ "Missed Calls",
+ "Message Error",
+ "Host Ack"
+ },
+ {"Advertisements",
+ "Invalid",
+ "Error",
+ "Request Ad",
+ "Ad Data (GIFs)"
+ },
+ {"Invitation / Client-to-Client",
+ "Invalid",
+ "Error",
+ "Invite a Friend",
+ "Invitation Ack"
+ },
+ {"Administrative",
+ "Invalid",
+ "Error",
+ "Information Request",
+ "Information Reply",
+ "Information Change Request",
+ "Information Chat Reply",
+ "Account Confirm Request",
+ "Account Confirm Reply",
+ "Account Delete Request",
+ "Account Delete Reply"
+ },
+ {"Popups",
+ "Invalid",
+ "Error",
+ "Display Popup"
+ },
+ {"BOS",
+ "Invalid",
+ "Error",
+ "Request Rights",
+ "Rights Response",
+ "Set group permission mask",
+ "Add permission list entries",
+ "Delete permission list entries",
+ "Add deny list entries",
+ "Delete deny list entries",
+ "Server Error"
+ },
+ {"User Lookup",
+ "Invalid",
+ "Error",
+ "Search Request",
+ "Search Response"
+ },
+ {"Stats",
+ "Invalid",
+ "Error",
+ "Set minimum report interval",
+ "Report Events"
+ },
+ {"Translate",
+ "Invalid",
+ "Error",
+ "Translate Request",
+ "Translate Reply",
+ },
+ {"Chat Navigation",
+ "Invalid",
+ "Error",
+ "Request rights",
+ "Request Exchange Information",
+ "Request Room Information",
+ "Request Occupant List",
+ "Search for Room",
+ "Outgoing Message",
+ "Incoming Message",
+ "Evil Request",
+ "Evil Reply",
+ "Chat Error",
+ }
+ };
+
+ maxf = sizeof(literals) / sizeof(literals[0]);
+ maxs = sizeof(literals[0]) / sizeof(literals[0][0]);
+
+ family = aimutil_get16(workingPtr->data+0);
+ subtype= aimutil_get16(workingPtr->data+2);
+
+ if((family < maxf) && (subtype+1 < maxs) && (literals[family][subtype] != NULL))
+ printf("bleck: null handler for %04x/%04x (%s)\n", family, subtype, literals[family][subtype+1]);
+ else
+ printf("bleck: null handler for %04x/%04x (no literal)\n",family,subtype);
+
+ return 1;
+}
+
+faim_export int aim_conn_addhandler(struct aim_session_t *sess,
+ struct aim_conn_t *conn,
+ u_short family,
+ u_short type,
+ rxcallback_t newhandler,
+ u_short flags)
+{
+ struct aim_rxcblist_t *newcb;
+
+ if (!conn)
+ return -1;
+
+ faimdprintf(1, "aim_conn_addhandler: adding for %04x/%04x\n", family, type);
+
+ if (!(newcb = (struct aim_rxcblist_t *)calloc(1, sizeof(struct aim_rxcblist_t))))
+ return -1;
+ newcb->family = family;
+ newcb->type = type;
+ newcb->flags = flags;
+ if (!newhandler)
+ newcb->handler = &bleck;
+ else
+ newcb->handler = newhandler;
+ newcb->next = NULL;
+
+ if (!conn->handlerlist)
+ conn->handlerlist = newcb;
+ else {
+ struct aim_rxcblist_t *cur;
+
+ cur = conn->handlerlist;
+
+ while (cur->next)
+ cur = cur->next;
+ cur->next = newcb;
+ }
+
+ return 0;
+}
+
+faim_export int aim_clearhandlers(struct aim_conn_t *conn)
+{
+ struct aim_rxcblist_t *cur;
+
+ if (!conn)
+ return -1;
+
+ for (cur = conn->handlerlist; cur; ) {
+ struct aim_rxcblist_t *tmp;
+
+ tmp = cur->next;
+ free(cur);
+ cur = tmp;
+ }
+ conn->handlerlist = NULL;
+
+ return 0;
+}
+
+faim_internal rxcallback_t aim_callhandler(struct aim_conn_t *conn,
+ u_short family,
+ u_short type)
+{
+ struct aim_rxcblist_t *cur;
+
+ if (!conn)
+ return NULL;
+
+ faimdprintf(1, "aim_callhandler: calling for %04x/%04x\n", family, type);
+
+ cur = conn->handlerlist;
+ while(cur)
+ {
+ if ( (cur->family == family) && (cur->type == type) )
+ return cur->handler;
+ cur = cur->next;
+ }
+
+ if (type==0xffff)
+ return NULL;
+
+ return aim_callhandler(conn, family, 0xffff);
+}
+
+faim_internal int aim_callhandler_noparam(struct aim_session_t *sess,
+ struct aim_conn_t *conn,
+ u_short family,
+ u_short type,
+ struct command_rx_struct *ptr)
+{
+ rxcallback_t userfunc = NULL;
+ userfunc = aim_callhandler(conn, family, type);
+ if (userfunc)
+ return userfunc(sess, ptr);
+ return 1; /* XXX */
+}
+
+/*
+ aim_rxdispatch()
+
+ Basically, heres what this should do:
+ 1) Determine correct packet handler for this packet
+ 2) Mark the packet handled (so it can be dequeued in purge_queue())
+ 3) Send the packet to the packet handler
+ 4) Go to next packet in the queue and start over
+ 5) When done, run purge_queue() to purge handled commands
+
+ Note that any unhandlable packets should probably be left in the
+ queue. This is the best way to prevent data loss. This means
+ that a single packet may get looked at by this function multiple
+ times. This is more good than bad! This behavior may change.
+
+ Aren't queue's fun?
+
+ TODO: Get rid of all the ugly if's.
+ TODO: Clean up.
+ TODO: More support for mid-level handlers.
+ TODO: Allow for NULL handlers.
+
+ */
+faim_export int aim_rxdispatch(struct aim_session_t *sess)
+{
+ int i = 0;
+ struct command_rx_struct *workingPtr = NULL;
+
+ if (sess->queue_incoming == NULL) {
+ faimdprintf(1, "parse_generic: incoming packet queue empty.\n");
+ return 0;
+ } else {
+ workingPtr = sess->queue_incoming;
+ for (i = 0; workingPtr != NULL; workingPtr = workingPtr->next, i++) {
+ /*
+ * XXX: This is still fairly ugly.
+ */
+ if (workingPtr->handled)
+ continue;
+
+ /*
+ * This is a debugging/sanity check only and probably could/should be removed
+ * for stable code.
+ */
+ if (((workingPtr->hdrtype == AIM_FRAMETYPE_OFT) &&
+ (workingPtr->conn->type != AIM_CONN_TYPE_RENDEZVOUS)) ||
+ ((workingPtr->hdrtype == AIM_FRAMETYPE_OSCAR) &&
+ (workingPtr->conn->type == AIM_CONN_TYPE_RENDEZVOUS))) {
+ printf("faim: rxhandlers: incompatible frame type %d on connection type 0x%04x\n", workingPtr->hdrtype, workingPtr->conn->type);
+ workingPtr->handled = 1;
+ continue;
+ }
+
+ switch(workingPtr->conn->type) {
+ case -1:
+ /*
+ * This can happen if we have a queued command
+ * that was recieved after a connection has
+ * been terminated. In which case, the handler
+ * list has been cleared, and there's nothing we
+ * can do for it. We can only cancel it.
+ */
+ workingPtr->handled = 1;
+ break;
+ case AIM_CONN_TYPE_AUTH: {
+ unsigned long head;
+
+ head = aimutil_get32(workingPtr->data);
+ if ((head == 0x00000001) && (workingPtr->commandlen == 4)) {
+ faimdprintf(1, "got connection ack on auth line\n");
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+ } else if (workingPtr->hdr.oscar.type == 0x04) {
+ /* Used only by the older login protocol */
+ workingPtr->handled = aim_authparse(sess, workingPtr);
+ } else {
+ unsigned short family,subtype;
+
+ family = aimutil_get16(workingPtr->data);
+ subtype = aimutil_get16(workingPtr->data+2);
+
+ switch (family) {
+ /* New login protocol */
+ case 0x0017:
+ if (subtype == 0x0001)
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0x0001, workingPtr);
+ else if (subtype == 0x0003)
+ workingPtr->handled = aim_authparse(sess, workingPtr);
+ else if (subtype == 0x0007)
+ workingPtr->handled = aim_authkeyparse(sess, workingPtr);
+ else
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
+ break;
+
+ case 0x0001:
+ if (subtype == 0x0003)
+ workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+ else if (subtype == 0x0007)
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
+ else if (subtype == 0x0018)
+ workingPtr->handled = aim_parse_hostversions(sess, workingPtr);
+ else
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0xffff, workingPtr);
+ break;
+
+ case 0x0007:
+ if (subtype == 0x0003)
+ workingPtr->handled = aim_parse_infochange(sess, workingPtr);
+ else if (subtype == 0x0005)
+ workingPtr->handled = aim_parse_infochange(sess, workingPtr);
+ else if (subtype == 0x0007)
+ workingPtr->handled = aim_parse_accountconfirm(sess, workingPtr);
+ break;
+
+ case AIM_CB_FAM_SPECIAL:
+ if (subtype == AIM_CB_SPECIAL_DEBUGCONN_CONNECT) {
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+ break;
+ } else
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0017, 0xffff, workingPtr);
+ break;
+
+ default:
+ break;
+ }
+ }
+ break;
+ }
+ case AIM_CONN_TYPE_BOS: {
+ u_short family;
+ u_short subtype;
+
+ if (workingPtr->hdr.oscar.type == 0x04) {
+ workingPtr->handled = aim_negchan_middle(sess, workingPtr);
+ break;
+ }
+
+ family = aimutil_get16(workingPtr->data);
+ subtype = aimutil_get16(workingPtr->data+2);
+
+ switch (family) {
+ case 0x0000: /* not really a family, but it works */
+ if (subtype == 0x0001)
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+ else
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
+ break;
+ case 0x0001: /* Family: General */
+ switch (subtype) {
+ case 0x0001:
+ workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+ break;
+ case 0x0003:
+ workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+ break;
+ case 0x0005:
+ workingPtr->handled = aim_handleredirect_middle(sess, workingPtr);
+ break;
+ case 0x0007:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
+ break;
+ case 0x000a:
+ workingPtr->handled = aim_parse_ratechange_middle(sess, workingPtr);
+ break;
+ case 0x000f:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000f, workingPtr);
+ break;
+ case 0x0010:
+ workingPtr->handled = aim_parse_evilnotify_middle(sess, workingPtr);
+ break;
+ case 0x0013:
+ workingPtr->handled = aim_parsemotd_middle(sess, workingPtr);
+ break;
+ case 0x0018:
+ workingPtr->handled = aim_parse_hostversions(sess, workingPtr);
+ break;
+ default:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_GEN, AIM_CB_GEN_DEFAULT, workingPtr);
+ break;
+ }
+ break;
+ case 0x0002: /* Family: Location */
+ switch (subtype) {
+ case 0x0001:
+ workingPtr->handled = aim_parse_locateerr(sess, workingPtr);
+ break;
+ case 0x0003:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0003, workingPtr);
+ break;
+ case 0x0006:
+ workingPtr->handled = aim_parse_userinfo_middle(sess, workingPtr);
+ break;
+ default:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOC, AIM_CB_LOC_DEFAULT, workingPtr);
+ break;
+ }
+ break;
+ case 0x0003: /* Family: Buddy List */
+ switch (subtype) {
+ case 0x0001:
+ workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+ break;
+ case 0x0003:
+ workingPtr->handled = aim_parse_buddyrights(sess, workingPtr);
+ break;
+ case 0x000b: /* oncoming buddy */
+ workingPtr->handled = aim_parse_oncoming_middle(sess, workingPtr);
+ break;
+ case 0x000c: /* offgoing buddy */
+ workingPtr->handled = aim_parse_offgoing_middle(sess, workingPtr);
+ break;
+ default:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BUD, AIM_CB_BUD_DEFAULT, workingPtr);
+ }
+ break;
+ case 0x0004: /* Family: Messaging */
+ switch (subtype) {
+ case 0x0001:
+ workingPtr->handled = aim_parse_msgerror_middle(sess, workingPtr);
+ break;
+ case 0x0005:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x0005, workingPtr);
+ break;
+ case 0x0006:
+ workingPtr->handled = aim_parse_outgoing_im_middle(sess, workingPtr);
+ break;
+ case 0x0007:
+ workingPtr->handled = aim_parse_incoming_im_middle(sess, workingPtr);
+ break;
+ case 0x000a:
+ workingPtr->handled = aim_parse_missedcall(sess, workingPtr);
+ break;
+ case 0x000c:
+ workingPtr->handled = aim_parse_msgack_middle(sess, workingPtr);
+ break;
+ default:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_MSG, AIM_CB_MSG_DEFAULT, workingPtr);
+ }
+ break;
+ case 0x0009:
+ if (subtype == 0x0001)
+ workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+ else if (subtype == 0x0003)
+ workingPtr->handled = aim_parse_bosrights(sess, workingPtr);
+ else
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BOS, AIM_CB_BOS_DEFAULT, workingPtr);
+ break;
+ case 0x000a: /* Family: User lookup */
+ switch (subtype) {
+ case 0x0001:
+ workingPtr->handled = aim_parse_searcherror(sess, workingPtr);
+ break;
+ case 0x0003:
+ workingPtr->handled = aim_parse_searchreply(sess, workingPtr);
+ break;
+ default:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOK, AIM_CB_LOK_DEFAULT, workingPtr);
+ }
+ break;
+ case 0x000b: {
+ if (subtype == 0x0001)
+ workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
+ else if (subtype == 0x0002)
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x000b, 0x0002, workingPtr);
+ else
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_STS, AIM_CB_STS_DEFAULT, workingPtr);
+ break;
+ }
+ case 0x0013: {
+ printf("lalala: 0x%04x/0x%04x\n", family, subtype);
+ break;
+ }
+ case AIM_CB_FAM_SPECIAL:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+ break;
+ default:
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
+ break;
+ } /* switch(family) */
+ break;
+ } /* AIM_CONN_TYPE_BOS */
+ case AIM_CONN_TYPE_ADS: {
+ unsigned short family;
+ unsigned short subtype;
+
+ family = aimutil_get16(workingPtr->data);
+ subtype= aimutil_get16(workingPtr->data+2);
+
+ if ((family == 0x0000) && (subtype == 0x00001)) {
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+ } else if ((family == 0x0001) && (subtype == 0x0003)) {
+ workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+ } else {
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+ }
+ break;
+ }
+ case AIM_CONN_TYPE_CHATNAV: {
+ u_short family;
+ u_short subtype;
+ family = aimutil_get16(workingPtr->data);
+ subtype= aimutil_get16(workingPtr->data+2);
+
+ if ((family == 0x0000) && (subtype == 0x00001)) {
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+ } else if ((family == 0x0001) && (subtype == 0x0003)) {
+ workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+ } else if ((family == 0x000d) && (subtype == 0x0009)) {
+ workingPtr->handled = aim_chatnav_parse_info(sess, workingPtr);
+ } else {
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+ }
+ break;
+ }
+ case AIM_CONN_TYPE_CHAT: {
+ u_short family, subtype;
+
+ family = aimutil_get16(workingPtr->data);
+ subtype= aimutil_get16(workingPtr->data+2);
+
+ if ((family == 0x0000) && (subtype == 0x00001)) {
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_FLAPVER, workingPtr);
+ } else if (family == 0x0001) {
+ if (subtype == 0x0001)
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0001, workingPtr);
+ else if (subtype == 0x0003)
+ workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
+ else if (subtype == 0x0007)
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x0007, workingPtr);
+ else if (subtype == 0x000a)
+ workingPtr->handled = aim_parse_ratechange_middle(sess, workingPtr);
+ else
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+ } else if (family == 0x000e) {
+ if (subtype == 0x0002)
+ workingPtr->handled = aim_chat_parse_infoupdate(sess, workingPtr);
+ else if (subtype == 0x0003)
+ workingPtr->handled = aim_chat_parse_joined(sess, workingPtr);
+ else if (subtype == 0x0004)
+ workingPtr->handled = aim_chat_parse_leave(sess, workingPtr);
+ else if (subtype == 0x0006)
+ workingPtr->handled = aim_chat_parse_incoming(sess, workingPtr);
+ else
+ printf("Chat: unknown snac %04x/%04x\n", family, subtype);
+ } else {
+ printf("Chat: unknown snac %04x/%04x\n", family, subtype);
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_CHT, AIM_CB_CHT_DEFAULT, workingPtr);
+ }
+ break;
+ }
+ case AIM_CONN_TYPE_RENDEZVOUS: {
+ /* make sure that we only get OFT frames on these connections */
+ if (workingPtr->hdrtype != AIM_FRAMETYPE_OFT) {
+ printf("faim: internal error: non-OFT frames on OFT connection\n");
+ workingPtr->handled = 1; /* get rid of it */
+ break;
+ }
+
+ /* XXX: implement this */
+ printf("faim: OFT frame!\n");
+
+ break;
+ }
+ case AIM_CONN_TYPE_RENDEZVOUS_OUT: {
+ /* not possible */
+ break;
+ }
+ default:
+ printf("\ninternal error: unknown connection type (very bad.) (type = %d, fd = %d, commandlen = %02x)\n\n", workingPtr->conn->type, workingPtr->conn->fd, workingPtr->commandlen);
+ workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_UNKNOWN, workingPtr);
+ break;
+ }
+ }
+ }
+
+ /*
+ * This doesn't have to be called here. It could easily be done
+ * by a seperate thread or something. It's an administrative operation,
+ * and can take a while. Though the less you call it the less memory
+ * you'll have :)
+ */
+ aim_purge_rxqueue(sess);
+
+ return 0;
+}
+
+faim_internal int aim_parse_msgack_middle(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+ rxcallback_t userfunc = NULL;
+ char sn[MAXSNLEN];
+ unsigned short type;
+ int i = 10+8; /* skip SNAC and cookie */
+ int ret = 1;
+ unsigned char snlen;
+
+ type = aimutil_get16(command->data+i);
+ i += 2;
+
+ snlen = aimutil_get8(command->data+i);
+ i++;
+
+ memset(sn, 0, sizeof(sn));
+ strncpy(sn, (char *)command->data+i, snlen);
+
+ if ((userfunc = aim_callhandler(command->conn, 0x0004, 0x000c)))
+ ret = userfunc(sess, command, type, sn);
+
+ 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.
+ *
+ */
+faim_internal int aim_parse_ratechange_middle(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+ rxcallback_t userfunc = NULL;
+ int ret = 1;
+ int i;
+ int code;
+ unsigned long rateclass, windowsize, clear, alert, limit, disconnect;
+ unsigned long currentavg, maxavg;
+
+ i = 10;
+
+ code = aimutil_get16(command->data+i);
+ i += 2;
+
+ rateclass = aimutil_get16(command->data+i);
+ i += 2;
+
+ windowsize = aimutil_get32(command->data+i);
+ i += 4;
+ clear = aimutil_get32(command->data+i);
+ i += 4;
+ alert = aimutil_get32(command->data+i);
+ i += 4;
+ limit = aimutil_get32(command->data+i);
+ i += 4;
+ disconnect = aimutil_get32(command->data+i);
+ i += 4;
+ currentavg = aimutil_get32(command->data+i);
+ i += 4;
+ maxavg = aimutil_get32(command->data+i);
+ i += 4;
+
+ if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x000a)))
+ ret = userfunc(sess, command, code, rateclass, windowsize, clear, alert, limit, disconnect, currentavg, maxavg);
+
+ return ret;
+}
+
+faim_internal int aim_parse_evilnotify_middle(struct aim_session_t *sess, struct command_rx_struct *command)
+{
+ rxcallback_t userfunc = NULL;
+ int ret = 1;
+ int i;
+ unsigned short newevil;
+ struct aim_userinfo_s userinfo;
+
+ i = 10;
+ newevil = aimutil_get16(command->data+10);
+ i += 2;
+
+ memset(&userinfo, 0, sizeof(struct aim_userinfo_s));
+ if (command->commandlen-i)
+ i += aim_extractuserinfo(command->data+i, &userinfo);
+
+ if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0010)))
+ ret = userfunc(sess, command, newevil, &userinfo);
+
+ return ret;
+}
+
+faim_internal int aim_parsemotd_middle(struct aim_session_t *sess,
+ struct command_rx_struct *command, ...)
+{
+ rxcallback_t userfunc = NULL;
+ char *msg;
+ int ret=1;
+ struct aim_tlvlist_t *tlvlist;
+ u_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(command->data+10);
+
+ /*
+ * TLVs follow
+ */
+ if (!(tlvlist = aim_readtlvchain(command->data+12, command->commandlen-12)))
+ return ret;
+
+ if (!(msg = aim_gettlv_str(tlvlist, 0x000b, 1))) {
+ aim_freetlvchain(&tlvlist);
+ return ret;
+ }
+
+ userfunc = aim_callhandler(command->conn, 0x0001, 0x0013);
+ if (userfunc)
+ ret = userfunc(sess, command, id, msg);
+
+ aim_freetlvchain(&tlvlist);
+ free(msg);
+
+ return ret;
+}
+
+faim_internal int aim_parse_hostonline(struct aim_session_t *sess,
+ struct command_rx_struct *command, ...)
+{
+ rxcallback_t userfunc = NULL;
+ int ret = 1;
+ unsigned short *families = NULL;
+ int famcount = 0, i;
+
+ famcount = (command->commandlen-10)/2;
+ if (!(families = malloc(command->commandlen-10)))
+ return ret;
+
+ for (i = 0; i < famcount; i++)
+ families[i] = aimutil_get16(command->data+((i*2)+10));
+
+ if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0003)))
+ ret = userfunc(sess, command, famcount, families);
+
+ free(families);
+
+ return ret;
+}
+
+faim_internal int aim_parse_accountconfirm(struct aim_session_t *sess,
+ struct command_rx_struct *command)
+{
+ rxcallback_t userfunc = NULL;
+ int ret = 1;
+ int status = -1;
+
+ status = aimutil_get16(command->data+10);
+
+ if ((userfunc = aim_callhandler(command->conn, 0x0007, 0x0007)))
+ ret = userfunc(sess, command, status);
+
+ return ret;
+}
+
+faim_internal int aim_parse_infochange(struct aim_session_t *sess,
+ struct command_rx_struct *command)
+{
+ unsigned short subtype; /* called for both reply and change-reply */
+ int i;
+
+ subtype = aimutil_get16(command->data+2);
+
+ /*
+ * struct {
+ * unsigned short perms;
+ * unsigned short tlvcount;
+ * aim_tlv_t tlvs[tlvcount];
+ * } admin_info[n];
+ */
+ for (i = 10; i < command->commandlen; ) {
+ int perms, tlvcount;
+
+ perms = aimutil_get16(command->data+i);
+ i += 2;
+
+ tlvcount = aimutil_get16(command->data+i);
+ i += 2;
+
+ while (tlvcount) {
+ rxcallback_t userfunc;
+ struct aim_tlv_t *tlv;
+ int str = 0;
+
+ if ((aimutil_get16(command->data+i) == 0x0011) ||
+ (aimutil_get16(command->data+i) == 0x0004))
+ str = 1;
+
+ if (str)
+ tlv = aim_grabtlvstr(command->data+i);
+ else
+ tlv = aim_grabtlv(command->data+i);
+
+ /* XXX fix so its only called once for the entire packet */
+ if ((userfunc = aim_callhandler(command->conn, 0x0007, subtype)))
+ userfunc(sess, command, perms, tlv->type, tlv->length, tlv->value, str);
+
+ if (tlv)
+ i += 2+2+tlv->length;
+
+ if (tlv && tlv->value)
+ free(tlv->value);
+ if (tlv)
+ free(tlv);
+
+ tlvcount--;
+ }
+ }
+
+ return 1;
+}
+
+faim_internal int aim_parse_hostversions(struct aim_session_t *sess,
+ struct command_rx_struct *command, ...)
+{
+ rxcallback_t userfunc = NULL;
+ int ret = 1;
+ int vercount;
+
+ vercount = (command->commandlen-10)/4;
+
+ if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0018)))
+ ret = userfunc(sess, command, vercount, command->data+10);
+
+ return ret;
+}
+
+faim_internal int aim_handleredirect_middle(struct aim_session_t *sess,
+ struct command_rx_struct *command, ...)
+{
+ int serviceid = 0;
+ unsigned char *cookie = NULL;
+ char *ip = NULL;
+ rxcallback_t userfunc = NULL;
+ struct aim_tlvlist_t *tlvlist;
+ int ret = 1;
+
+ tlvlist = aim_readtlvchain(command->data+10, command->commandlen-10);
+
+ if (aim_gettlv(tlvlist, 0x000d, 1))
+ serviceid = aim_gettlv16(tlvlist, 0x000d, 1);
+ if (aim_gettlv(tlvlist, 0x0005, 1))
+ ip = aim_gettlv_str(tlvlist, 0x0005, 1);
+ if (aim_gettlv(tlvlist, 0x0006, 1))
+ cookie = aim_gettlv_str(tlvlist, 0x0006, 1);
+
+ if ((serviceid == AIM_CONN_TYPE_CHAT) && sess->pendingjoin) {
+
+ /*
+ * Chat hack.
+ *
+ */
+ if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0005)))
+ ret = userfunc(sess, command, serviceid, ip, cookie, sess->pendingjoin, (int)sess->pendingjoinexchange);
+ free(sess->pendingjoin);
+ sess->pendingjoin = NULL;
+ sess->pendingjoinexchange = 0;
+ } else if (!serviceid || !ip || !cookie) { /* yeep! */
+ ret = 1;
+ } else {
+ if ((userfunc = aim_callhandler(command->conn, 0x0001, 0x0005)))
+ ret = userfunc(sess, command, serviceid, ip, cookie);
+ }
+
+ if (ip)
+ free(ip);
+ if (cookie)
+ free(cookie);
+
+ aim_freetlvchain(&tlvlist);
+
+ return ret;
+}
+
+faim_internal int aim_parse_unknown(struct aim_session_t *sess,
+ struct command_rx_struct *command, ...)
+{
+ u_int i = 0;
+
+ if (!sess || !command)
+ return 1;
+
+ faimdprintf(1, "\nRecieved unknown packet:");
+
+ for (i = 0; i < command->commandlen; i++)
+ {
+ if ((i % 8) == 0)
+ faimdprintf(1, "\n\t");
+
+ faimdprintf(1, "0x%2x ", command->data[i]);
+ }
+
+ faimdprintf(1, "\n\n");
+
+ return 1;
+}
+
+
+faim_internal int aim_negchan_middle(struct aim_session_t *sess,
+ struct command_rx_struct *command)
+{
+ struct aim_tlvlist_t *tlvlist;
+ char *msg = NULL;
+ unsigned short code = 0;
+ rxcallback_t userfunc = NULL;
+ int ret = 1;
+
+ tlvlist = aim_readtlvchain(command->data, command->commandlen);
+
+ if (aim_gettlv(tlvlist, 0x0009, 1))
+ code = aim_gettlv16(tlvlist, 0x0009, 1);
+
+ if (aim_gettlv(tlvlist, 0x000b, 1))
+ msg = aim_gettlv_str(tlvlist, 0x000b, 1);
+
+ if ((userfunc = aim_callhandler(command->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_CONNERR)))
+ ret = userfunc(sess, command, code, msg);
+
+ aim_freetlvchain(&tlvlist);
+
+ if (msg)
+ free(msg);
+
+ return ret;
+}
+
+/*
+ * aim_parse_generalerrs()
+ *
+ * Middle handler for 0x0001 snac of each family.
+ *
+ */
+faim_internal int aim_parse_generalerrs(struct aim_session_t *sess,
+ struct command_rx_struct *command, ...)
+{
+ unsigned short family;
+ unsigned short subtype;
+ int ret = 1;
+ int error = 0;
+ rxcallback_t userfunc = NULL;
+
+ family = aimutil_get16(command->data+0);
+ subtype= aimutil_get16(command->data+2);
+
+ if (command->commandlen > 10)
+ error = aimutil_get16(command->data+10);
+
+ if ((userfunc = aim_callhandler(command->conn, family, subtype)))
+ ret = userfunc(sess, command, error);
+
+ return ret;
+}
+
+
+
andersk / libfaim.git / blobdiff