static void cache_item_destroy(void *p)
{
WTPCached_tid *item;
item = p;
wap_addr_tuple_destroy(item->addr_tuple);
gw_free(item);
}
static WSPMachine *find_session_machine(WAPEvent *event, WSP_PDU *pdu) {
WSPMachine *sm;
long session_id;
WAPAddrTuple *tuple;
tuple = NULL;
session_id = -1;
switch (event->type) {
case TR_Invoke_Ind:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Invoke_Ind.addr_tuple);
break;
case TR_Invoke_Cnf:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Invoke_Cnf.addr_tuple);
break;
case TR_Result_Cnf:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Result_Cnf.addr_tuple);
break;
case TR_Abort_Ind:
tuple = wap_addr_tuple_duplicate(
event->u.TR_Abort_Ind.addr_tuple);
break;
case S_Connect_Res:
session_id = event->u.S_Connect_Res.session_id;
break;
case S_Resume_Res:
session_id = event->u.S_Resume_Res.session_id;
break;
case Disconnect_Event:
session_id = event->u.Disconnect_Event.session_handle;
break;
case Suspend_Event:
session_id = event->u.Suspend_Event.session_handle;
break;
case S_MethodInvoke_Res:
session_id = event->u.S_MethodInvoke_Res.session_id;
break;
case S_MethodResult_Req:
session_id = event->u.S_MethodResult_Req.session_id;
break;
case S_ConfirmedPush_Req:
session_id = event->u.S_ConfirmedPush_Req.session_id;
break;
case S_Push_Req:
session_id = event->u.S_Push_Req.session_id;
break;
default:
error(0, "WSP: Cannot find machine for %s event",
wap_event_name(event->type));
}
gw_assert(tuple != NULL || session_id != -1);
/* Pre-state-machine tests, according to 7.1.5. After the tests,
* caller will pass the event to sm if sm is not NULL. */
sm = NULL;
/* First test is for MRUEXCEEDED, and we don't have a MRU */
/* Second test is for class 2 TR-Invoke.ind with Connect PDU */
if (event->type == TR_Invoke_Ind &&
event->u.TR_Invoke_Ind.tcl == 2 &&
pdu->type == Connect) {
/* Create a new session, even if there is already
* a session open for this address. The new session
* will take care of killing the old ones. */
sm = machine_create();
gw_assert(tuple != NULL);
sm->addr_tuple = wap_addr_tuple_duplicate(tuple);
sm->connect_handle = event->u.TR_Invoke_Ind.handle;
/* Third test is for class 2 TR-Invoke.ind with Resume PDU */
} else if (event->type == TR_Invoke_Ind &&
event->u.TR_Invoke_Ind.tcl == 2 &&
pdu->type == Resume) {
/* Pass to session identified by session id, not
* the address tuple. */
session_id = pdu->u.Resume.sessionid;
sm = gwlist_search(session_machines, &session_id,
find_by_session_id);
if (sm == NULL) {
/* No session; TR-Abort.req(DISCONNECT) */
send_abort(WSP_ABORT_DISCONNECT,
event->u.TR_Invoke_Ind.handle);
}
/* Fourth test is for a class 1 or 2 TR-Invoke.Ind with no
* session for that address tuple. We also handle class 0
* TR-Invoke.ind here by ignoring them; this seems to be
* an omission in the spec table. */
} else if (event->type == TR_Invoke_Ind) {
sm = gwlist_search(session_machines, tuple,
transaction_belongs_to_session);
if (sm == NULL && (event->u.TR_Invoke_Ind.tcl == 1 ||
event->u.TR_Invoke_Ind.tcl == 2)) {
send_abort(WSP_ABORT_DISCONNECT,
event->u.TR_Invoke_Ind.handle);
}
/* Other tests are for events not handled by the state tables;
* do those later, after we've tried to handle them. */
} else {
if (session_id != -1) {
sm = gwlist_search(session_machines, &session_id,
find_by_session_id);
} else {
sm = gwlist_search(session_machines, tuple,
transaction_belongs_to_session);
}
/* The table doesn't really say what we should do with
* non-Invoke events for which there is no session. But
* such a situation means there is an error _somewhere_
* in the gateway. */
if (sm == NULL) {
error(0, "WSP: Cannot find session machine for event.");
wap_event_dump(event);
}
}
wap_addr_tuple_destroy(tuple);
return sm;
}