#define FAIM_INTERNAL
#include <aim.h>
+static aim_module_t *findmodule(struct aim_session_t *sess, const char *name)
+{
+ aim_module_t *cur;
+
+ for (cur = (aim_module_t *)sess->modlistv; cur; cur = cur->next) {
+ if (strcmp(name, cur->name) == 0)
+ return cur;
+ }
+
+ return NULL;
+}
+
+faim_internal int aim__registermodule(struct aim_session_t *sess, int (*modfirst)(struct aim_session_t *, aim_module_t *))
+{
+ aim_module_t *mod;
+
+ if (!sess || !modfirst)
+ return -1;
+
+ if (!(mod = malloc(sizeof(aim_module_t))))
+ return -1;
+ memset(mod, 0, sizeof(aim_module_t));
+
+ if (modfirst(sess, mod) == -1) {
+ free(mod);
+ return -1;
+ }
+
+ if (findmodule(sess, mod->name)) {
+ if (mod->shutdown)
+ mod->shutdown(sess, mod);
+ free(mod);
+ return -1;
+ }
+
+ mod->next = (aim_module_t *)sess->modlistv;
+ (aim_module_t *)sess->modlistv = mod;
+
+ faimdprintf(sess, 1, "registered module %s (family 0x%04x)\n", mod->name, mod->family);
+
+ return 0;
+}
+
+faim_internal void aim__shutdownmodules(struct aim_session_t *sess)
+{
+ aim_module_t *cur;
+
+ for (cur = (aim_module_t *)sess->modlistv; cur; ) {
+ aim_module_t *tmp;
+
+ tmp = cur->next;
+
+ if (cur->shutdown)
+ cur->shutdown(sess, cur);
+
+ free(cur);
+
+ cur = tmp;
+ }
+
+ sess->modlistv = NULL;
+
+ return;
+}
+
+static int consumesnac(struct aim_session_t *sess, struct command_rx_struct *rx)
+{
+ aim_module_t *cur;
+ aim_modsnac_t snac;
+
+ snac.family = aimutil_get16(rx->data+0);
+ snac.subtype = aimutil_get16(rx->data+2);
+ snac.flags = aimutil_get16(rx->data+4);
+ snac.id = aimutil_get32(rx->data+6);
+
+ for (cur = (aim_module_t *)sess->modlistv; cur; cur = cur->next) {
+
+ if (!(cur->flags & AIM_MODFLAG_MULTIFAMILY) &&
+ (cur->family != snac.family))
+ continue;
+
+ if (cur->snachandler(sess, cur, rx, &snac, rx->data+10, rx->commandlen-10))
+ return 1;
+
+ }
+
+ return 0;
+}
+
+static int consumenonsnac(struct aim_session_t *sess, struct command_rx_struct *rx, unsigned short family, unsigned short subtype)
+{
+ aim_module_t *cur;
+ aim_modsnac_t snac;
+
+ snac.family = family;
+ snac.subtype = subtype;
+ snac.flags = snac.id = 0;
+
+ for (cur = (aim_module_t *)sess->modlistv; cur; cur = cur->next) {
+
+ if (!(cur->flags & AIM_MODFLAG_MULTIFAMILY) &&
+ (cur->family != snac.family))
+ continue;
+
+ if (cur->snachandler(sess, cur, rx, &snac, rx->data, rx->commandlen))
+ return 1;
+
+ }
+
+ return 0;
+}
+
/*
* Bleck functions get called when there's no non-bleck functions
* around to cleanup the mess...
}
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_conn_t *conn,
+ u_short family,
+ u_short type,
+ aim_rxcallback_t newhandler,
+ u_short flags)
{
struct aim_rxcblist_t *newcb;
return 0;
}
-faim_internal rxcallback_t aim_callhandler(struct aim_session_t *sess,
- struct aim_conn_t *conn,
- unsigned short family,
- unsigned short type)
+faim_internal aim_rxcallback_t aim_callhandler(struct aim_session_t *sess,
+ struct aim_conn_t *conn,
+ unsigned short family,
+ unsigned short type)
{
struct aim_rxcblist_t *cur;
u_short type,
struct command_rx_struct *ptr)
{
- rxcallback_t userfunc = NULL;
+ aim_rxcallback_t userfunc = NULL;
userfunc = aim_callhandler(sess, conn, family, type);
if (userfunc)
return userfunc(sess, ptr);
workingPtr->handled = aim_negchan_middle(sess, workingPtr);
continue;
}
+
+ if ((workingPtr->handled = consumesnac(sess, workingPtr)))
+ continue;
- family = aimutil_get16(workingPtr->data);
- subtype = aimutil_get16(workingPtr->data+2);
-
- if (family == 0x0001) {
-
- if (subtype == 0x0001)
- workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
- else if (subtype == 0x0003)
- workingPtr->handled = aim_parse_hostonline(sess, workingPtr);
- else if (subtype == 0x0005)
- workingPtr->handled = aim_handleredirect_middle(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 if (subtype == 0x000f)
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0x000f, workingPtr);
- else if (subtype == 0x0010)
- workingPtr->handled = aim_parse_evilnotify_middle(sess, workingPtr);
- else if (subtype == 0x0013)
- workingPtr->handled = aim_parsemotd_middle(sess, workingPtr);
- else if (subtype == 0x0018)
- workingPtr->handled = aim_parse_hostversions(sess, workingPtr);
- else
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0001, 0xffff, workingPtr);
-
- } else if (family == 0x0002) {
-
- if (subtype == 0x0001)
- workingPtr->handled = aim_parse_locateerr(sess, workingPtr);
- else if (subtype == 0x0003)
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0002, 0x0003, workingPtr);
- else if (subtype == 0x0006)
- workingPtr->handled = aim_parse_userinfo_middle(sess, workingPtr);
- else
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOC, AIM_CB_LOC_DEFAULT, workingPtr);
-
- } else if (family == 0x0003) {
-
- if (subtype == 0x0001)
- workingPtr->handled = aim_parse_generalerrs(sess, workingPtr);
- else if (subtype == 0x0003)
- workingPtr->handled = aim_parse_buddyrights(sess, workingPtr);
- else if (subtype == 0x000b)
- workingPtr->handled = aim_parse_oncoming_middle(sess, workingPtr);
- else if (subtype == 0x000c)
- workingPtr->handled = aim_parse_offgoing_middle(sess, workingPtr);
- else
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_BUD, AIM_CB_BUD_DEFAULT, workingPtr);
-
- } else if (family == 0x0004) {
-
- if (subtype == 0x0001)
- workingPtr->handled = aim_parse_msgerror_middle(sess, workingPtr);
- else if (subtype == 0x0005)
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, 0x0004, 0x0005, workingPtr);
- else if (subtype == 0x0006)
- workingPtr->handled = aim_parse_outgoing_im_middle(sess, workingPtr);
- else if (subtype == 0x0007)
- workingPtr->handled = aim_parse_incoming_im_middle(sess, workingPtr);
- else if (subtype == 0x000a)
- workingPtr->handled = aim_parse_missedcall(sess, workingPtr);
- else if (subtype == 0x000c)
- workingPtr->handled = aim_parse_msgack_middle(sess, workingPtr);
- else
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_MSG, AIM_CB_MSG_DEFAULT, workingPtr);
-
- } else if (family == 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;
-
- } else if (family == 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);
-
- } else if (family == 0x000a) {
-
- if (subtype == 0x0001)
- workingPtr->handled = aim_parse_searcherror(sess, workingPtr);
- else if (subtype == 0x0003)
- workingPtr->handled = aim_parse_searchreply(sess, workingPtr);
- else
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, AIM_CB_FAM_LOK, AIM_CB_LOK_DEFAULT, workingPtr);
-
- } else if (family == 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);
-
- } else if (family == 0x000d) {
-
- if (subtype == 0x0009)
- workingPtr->handled = aim_chatnav_parse_info(sess, 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 if (family == 0x0013) {
-
- faimdprintf(sess, 0, "lalala: 0x%04x/0x%04x\n", family, subtype);
-
- } else if (family == 0x0017) { /* New login protocol */
-
- 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);
-
- } else if (family == AIM_CB_FAM_SPECIAL) {
-
- workingPtr->handled = aim_callhandler_noparam(sess, workingPtr->conn, family, subtype, workingPtr);
+ if (!workingPtr->handled) {
+ family = aimutil_get16(workingPtr->data);
+ subtype = aimutil_get16(workingPtr->data+2);
+ faimdprintf(sess, 1, "warning: unhandled packet %04x/%04x\n", family, subtype);
+ consumenonsnac(sess, workingPtr, 0xffff, 0xffff); /* last chance! */
+ workingPtr->handled = 1;
}
}
}
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(sess, 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(sess, 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(sess, command->data+i, &userinfo);
-
- if ((userfunc = aim_callhandler(sess, 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(sess, 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(sess, 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(sess, 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(sess, 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(sess, 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(sess, 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(sess, 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, ...)
{
struct aim_tlvlist_t *tlvlist;
char *msg = NULL;
unsigned short code = 0;
- rxcallback_t userfunc = NULL;
+ aim_rxcallback_t userfunc = NULL;
int ret = 1;
/* Used only by the older login protocol */
/* XXX remove this special case? */
if (command->conn->type == AIM_CONN_TYPE_AUTH)
- return aim_authparse(sess, command);
+ return consumenonsnac(sess, command, 0x0017, 0x0003);
tlvlist = aim_readtlvchain(command->data, command->commandlen);
msg = aim_gettlv_str(tlvlist, 0x000b, 1);
if ((userfunc = aim_callhandler(sess, command->conn, AIM_CB_FAM_SPECIAL, AIM_CB_SPECIAL_CONNERR)))
- ret = userfunc(sess, command, code, msg);
+ ret = userfunc(sess, command, code, msg);
aim_freetlvchain(&tlvlist);
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(sess, command->conn, family, subtype)))
- ret = userfunc(sess, command, error);
-
- return ret;
-}
-
-
-
andersk / libfaim.git / blobdiff