void resume_ro_session_ontimeout(struct interim_ccr *i_req, int timeout_or_error) {
time_t now = get_current_time_micro();
long used_secs;
struct ro_session_entry *ro_session_entry = NULL;
int call_terminated = 0;
if (!i_req) {
LM_ERR("This is so wrong: i_req is NULL\n");
return;
}
ro_session_entry = &(ro_session_table->entries[i_req->ro_session->h_entry]);
ro_session_lock(ro_session_table, ro_session_entry);
LM_DBG("credit=%d credit_valid_for=%d", i_req->new_credit, i_req->credit_valid_for);
used_secs = rint((now - ((timeout_or_error==1 && i_req->ro_session->last_event_timestamp_backup>0)?i_req->ro_session->last_event_timestamp_backup : i_req->ro_session->last_event_timestamp)) / (float) 1000000);
/* check to make sure diameter server is giving us sane values */
if (i_req->credit_valid_for !=0 && i_req->new_credit > i_req->credit_valid_for) {
LM_WARN("That's weird, Diameter server gave us credit with a lower validity period :D. Setting reserved time to validity period instead \n");
i_req->new_credit = i_req->credit_valid_for;
}
if (i_req->new_credit > 0) {
//now insert the new timer
i_req->ro_session->last_event_timestamp = get_current_time_micro();
i_req->ro_session->event_type = answered;
i_req->ro_session->valid_for = i_req->credit_valid_for;
int ret = 0;
if (i_req->is_final_allocation) {
LM_DBG("This is a final allocation and call will end in %i seconds\n", i_req->new_credit);
i_req->ro_session->event_type = no_more_credit;
ret = insert_ro_timer(&i_req->ro_session->ro_tl, i_req->new_credit);
} else {
int timer_timeout = i_req->new_credit;
if (i_req->new_credit > ro_timer_buffer /*TIMEOUTBUFFER*/) {
// We haven't finished using our 1st block of units, and we need to set the timer to
// (new_credit - ro_timer_buffer[5 secs]) to ensure we get new credit before our previous
// reservation is exhausted. This will only be done the first time, because the timer
// will always be fired 5 seconds before we run out of time thanks to this operation
timer_timeout = i_req->new_credit - ro_timer_buffer;
}
ret = insert_ro_timer(&i_req->ro_session->ro_tl, timer_timeout);
}
// update to the new block of units we got
i_req->ro_session->reserved_secs = i_req->new_credit;
if (ret != 0) {
LM_CRIT("unable to insert timer for Ro Session [%.*s]\n",
i_req->ro_session->ro_session_id.len, i_req->ro_session->ro_session_id.s);
} else {
ref_ro_session(i_req->ro_session, 1, 0);
}
if (ro_db_mode == DB_MODE_REALTIME) {
i_req->ro_session->flags |= RO_SESSION_FLAG_CHANGED;
if (update_ro_dbinfo_unsafe(i_req->ro_session) != 0) {
LM_ERR("Failed to update Ro session in DB... continuing\n");
}
}
} else {
/* just put the timer back in with however many seconds are left (if any!!! in which case we need to kill */
/* also update the event type to no_more_credit to save on processing the next time we get here */
i_req->ro_session->event_type = no_more_credit;
if (!timeout_or_error)
i_req->ro_session->last_event_timestamp = get_current_time_micro();
int whatsleft = i_req->ro_session->reserved_secs - used_secs;
if (whatsleft <= 0) {
// TODO we need to handle this situation more precisely.
// in case CCR times out, we get a call shutdown but the error message assumes it was due to a lack of credit.
//
LM_WARN("Immediately killing call due to no more credit *OR* no CCA received (timeout) after reservation request\n");
//
// we need to unlock the session or else we might get a deadlock on dlg_terminated() dialog callback.
// Do not unref the session because it will be made inside the dlg_terminated() function.
//
//unref_ro_session_unsafe(i_req->ro_session, 1, ro_session_entry);
ro_session_unlock(ro_session_table, ro_session_entry);
dlgb.lookup_terminate_dlg(i_req->ro_session->dlg_h_entry, i_req->ro_session->dlg_h_id, NULL);
call_terminated = 1;
} else {
LM_DBG("No more credit for user - letting call run out of money in [%i] seconds", whatsleft);
int ret = insert_ro_timer(&i_req->ro_session->ro_tl, whatsleft);
if (ret != 0) {
LM_CRIT("unable to insert timer for Ro Session [%.*s]\n",
i_req->ro_session->ro_session_id.len, i_req->ro_session->ro_session_id.s);
} else {
ref_ro_session(i_req->ro_session, 1, 0);
}
}
}
//
// if call was forcefully terminated, the lock was released before dlgb.lookup_terminate_dlg() function call.
//
if (!call_terminated) {
unref_ro_session(i_req->ro_session, 1, 0); //unref from the initial timer that fired this event.
ro_session_unlock(ro_session_table, ro_session_entry);
}
shm_free(i_req);
LM_DBG("Exiting async ccr interim nicely");
}
void dlg_answered(struct dlg_cell *dlg, int type, struct dlg_cb_params *_params) {
struct sip_msg *reply;
struct ro_session* session = 0;
struct ro_session_entry* ro_session_entry;
time_t now = get_current_time_micro();
time_t time_since_last_event;
LM_DBG("dlg_reply callback entered\n");
if (!_params) {
return;
}
session = (struct ro_session*) *_params->param;
if (!session) {
LM_ERR("Ro Session object is NULL...... aborting\n");
return;
}
LM_DBG("Call answered on dlg [%p] - search for Ro Session [%p]\n", dlg, session);
ro_session_entry = &(ro_session_table->entries[session->h_entry]);
ro_session_lock(ro_session_table, ro_session_entry);
if (session->active) {
LM_CRIT("Why the heck am i receiving a double confirmation of the dialog? Ignoring... ");
ro_session_unlock(ro_session_table, ro_session_entry);
return;
} else if (session->active < 0) { //session has already been terminated - we can't reactivate...
LM_WARN("Received an answer after terminating dialog.... ignoring\n");
ro_session_unlock(ro_session_table, ro_session_entry);
return;
}
time_since_last_event = (now - session->last_event_timestamp)/1000000;
session->start_time = session->last_event_timestamp = now;
session->event_type = answered;
session->active = 1;
/* check to make sure that the validity of the credit is enough for the bundle */
int ret = 0;
LM_DBG("we were granted %d seconds (valud for %d seconds) and it's been %d seconds since we requested\n", (int)session->reserved_secs, (int)session->valid_for, (int)time_since_last_event);
if (session->reserved_secs < (session->valid_for - time_since_last_event)) {
if (session->reserved_secs > ro_timer_buffer/*TIMEOUTBUFFER*/) {
ret = insert_ro_timer(&session->ro_tl, session->reserved_secs - ro_timer_buffer); //subtract 5 seconds so as to get more credit before we run out
} else {
ret = insert_ro_timer(&session->ro_tl, session->reserved_secs);
}
} else {
if (session->valid_for > ro_timer_buffer) {
ret = insert_ro_timer(&session->ro_tl, session->valid_for - ro_timer_buffer); //subtract 5 seconds so as to get more credit before we run out
} else {
ret = insert_ro_timer(&session->ro_tl, session->valid_for);
}
}
if (ret != 0) {
LM_CRIT("unable to insert timer for Ro Session [%.*s]\n", session->ro_session_id.len, session->ro_session_id.s);
} else {
ref_ro_session_unsafe(session, 1); // lock already acquired
}
if (ro_db_mode == DB_MODE_REALTIME) {
session->flags |= RO_SESSION_FLAG_CHANGED;
if (update_ro_dbinfo_unsafe(session) != 0) {
LM_ERR("Failed to update ro_session in database... continuing\n");
};
}
ro_session_unlock(ro_session_table, ro_session_entry);
AAASession* cdp_session = cdpb.AAAGetCCAccSession(session->ro_session_id);
if (!cdp_session) {
LM_ERR("could not find find CC App CDP session for session [%.*s]\n", session->ro_session_id.len, session->ro_session_id.s);
return;
}
cdpb.AAAStartChargingCCAccSession(cdp_session);
cdpb.AAASessionsUnlock(cdp_session->hash);
}
void dlg_reply(struct dlg_cell *dlg, int type, struct dlg_cb_params *_params) {
struct sip_msg *reply;
struct ro_session* session = 0;
struct ro_session_entry* ro_session_entry;
time_t now = time(0);
time_t time_since_last_event;
LM_DBG("dlg_reply callback entered\n");
if (!_params) {
return;
}
reply = _params->rpl;
if (!reply) {
LM_WARN("dlg_reply has no SIP reply associated.\n");
return;
}
if (reply != FAKED_REPLY && reply->REPLY_STATUS == 200) {
LM_DBG("Call answered on dlg [%p] - search for Ro Session and initialise timers.\n", dlg);
session = (struct ro_session*)*_params->param;
if (!session) {
LM_ERR("Ro Session object is NULL...... aborting\n");
return;
}
ro_session_entry = &(ro_session_table->entries[session->h_entry]);
ro_session_lock(ro_session_table, ro_session_entry);
if (session->active) {
LM_CRIT("Why the heck am i receiving a double confirmation of the dialog? Ignoring... ");
ro_session_unlock(ro_session_table, ro_session_entry);
return;
}
time_since_last_event = now - session->last_event_timestamp;
session->start_time = session->last_event_timestamp = now;
session->event_type = answered;
session->active = 1;
/* check to make sure that the validity of the credit is enough for the bundle */
int ret = 0;
if (session->reserved_secs < (session->valid_for - time_since_last_event)) {
if (session->reserved_secs > ro_timer_buffer/*TIMEOUTBUFFER*/) {
ret = insert_ro_timer(&session->ro_tl, session->reserved_secs - ro_timer_buffer); //subtract 5 seconds so as to get more credit before we run out
} else {
ret = insert_ro_timer(&session->ro_tl, session->reserved_secs);
}
} else {
if (session->valid_for > ro_timer_buffer) {
ret = insert_ro_timer(&session->ro_tl, session->valid_for - ro_timer_buffer); //subtract 5 seconds so as to get more credit before we run out
} else {
ret = insert_ro_timer(&session->ro_tl, session->valid_for);
}
}
if (ret != 0) {
LM_CRIT("unable to insert timer for Ro Session [%.*s]\n", session->ro_session_id.len, session->ro_session_id.s);
} else {
ref_ro_session_unsafe(session, 1); // lock already acquired
}
if (ro_db_mode == DB_MODE_REALTIME) {
session->flags |= RO_SESSION_FLAG_CHANGED;
if (update_ro_dbinfo_unsafe(session) != 0) {
LM_ERR("Failed to update ro_session in database... continuing\n");
};
}
ro_session_unlock(ro_session_table, ro_session_entry);
AAASession* cdp_session = cdpb.AAAGetCCAccSession(session->ro_session_id);
if (!cdp_session) {
LM_ERR("could not find find CC App CDP session for session [%.*s]\n", session->ro_session_id.len, session->ro_session_id.s);
// ro_session_unlock(ro_session_table, ro_session_entry);
return;
}
// ro_session_unlock(ro_session_table, ro_session_entry);
cdpb.AAAStartChargingCCAccSession(cdp_session);
cdpb.AAASessionsUnlock(cdp_session->hash);
// unref_ro_session(session, 1); DONT need this anymore because we don't do lookup so no addition to ref counter
}
}
void dlg_terminated(struct dlg_cell *dlg, int type, struct dlg_cb_params *_params) {
//int i;
int unref = 0;
struct ro_session *ro_session = 0;
struct ro_session_entry *ro_session_entry;
struct sip_msg *request;
LM_DBG("dialog [%p] terminated, lets send stop record\n", dlg);
if (!_params) {
return;
}
ro_session = (struct ro_session*)*_params->param;
if (!ro_session) {
LM_ERR("Ro Session object is NULL...... aborting\n");
return;
}
request = _params->req;
if (!request) {
LM_WARN("dlg_terminated has no SIP request associated.\n");
}
if (dlg && (dlg->callid.s && dlg->callid.len > 0)) {
/* find the session for this call, possibly both for orig and term*/
//for (i=0; i<2; i++) {
//TODO: try and get the Ro session specifically for terminating dialog or originating one
//currently the way we are doing is a hack.....
//if ((ro_session = lookup_ro_session(dlg->h_entry, &dlg->callid, 0, 0))) {
ro_session_entry =
&(ro_session_table->entries[ro_session->h_entry]);
//if the Ro session is not active we don't need to do anything. This prevents
//double processing for various dialog_terminated callback events.
//If however, the call was never answered, then we can continue as normal
ro_session_lock(ro_session_table, ro_session_entry);
if (!ro_session->active && (ro_session->start_time != 0)) {
unref_ro_session(ro_session,1);
LM_ERR("Ro Session is not active, but may have been answered [%d]\n", (int)ro_session->start_time);
ro_session_unlock(ro_session_table, ro_session_entry);
return;
}
if (ro_session->active) { // if the call was never activated, there's no timer to remove
int ret = remove_ro_timer(&ro_session->ro_tl);
if (ret < 0) {
LM_CRIT("unable to unlink the timer on ro_session %p [%.*s]\n",
ro_session, ro_session->ro_session_id.len, ro_session->ro_session_id.s);
} else if (ret > 0) {
LM_WARN("inconsistent ro timer data on ro_session %p [%.*s]\n",
ro_session, ro_session->ro_session_id.len, ro_session->ro_session_id.s);
} else {
unref++;
}
}
LM_DBG("Sending CCR STOP on Ro_Session [%p]\n", ro_session);
send_ccr_stop(ro_session);
ro_session->active = -1; //deleted.... terminated ....
if (ro_db_mode == DB_MODE_REALTIME) {
ro_session->flags |= RO_SESSION_FLAG_DELETED;
if (update_ro_dbinfo_unsafe(ro_session) != 0) {
LM_ERR("Unable to update Ro session in DB...continuing\n");
}
}
//ro_session->start_time;
unref_ro_session_unsafe(ro_session, 1+unref, ro_session_entry); //lock already acquired
//unref_ro_session_unsafe(ro_session, 2+unref, ro_session_entry); //lock already acquired
ro_session_unlock(ro_session_table, ro_session_entry);
//}
//}
}
}
void dlg_terminated(struct dlg_cell *dlg, int type, unsigned int termcode, char* reason, struct dlg_cb_params *_params) {
//int i;
int unref = 0;
struct ro_session *ro_session = 0;
struct ro_session_entry *ro_session_entry;
struct sip_msg *request;
str s_reason;
s_reason.s = reason;
s_reason.len = strlen(reason);
LM_DBG("dialog [%p] terminated on type [%d], lets send stop record\n", dlg, type);
if (!_params) {
return;
}
LM_DBG("Direction is %d\n", _params->direction);
if (_params->req) {
if (_params->req->first_line.u.request.method_value == METHOD_BYE) {
if (_params->direction == DLG_DIR_DOWNSTREAM) {
LM_DBG("Dialog ended by Caller\n");
} else {
LM_DBG("Dialog ended by Callee\n");
}
} else {
LM_DBG("Request is %.*s\n", _params->req->first_line.u.request.method.len, _params->req->first_line.u.request.method.s);
}
struct hdr_field* h = get_hdr_by_name(_params->req, "Reason", 6);
if(h!=NULL){
LM_DBG("reason header is [%.*s]\n", h->body.len, h->body.s);
s_reason = h->body;
}
} else if (_params->rpl) {
LM_DBG("Reply is [%d - %.*s]", _params->rpl->first_line.u.reply.statuscode, _params->rpl->first_line.u.reply.reason.len, _params->rpl->first_line.u.reply.reason.s);
}
ro_session = (struct ro_session*)*_params->param;
if (!ro_session) {
LM_ERR("Ro Session object is NULL...... aborting\n");
return;
}
request = _params->req;
if (!request) {
LM_WARN("dlg_terminated has no SIP request associated.\n");
}
if (dlg && (dlg->callid.s && dlg->callid.len > 0)) {
/* find the session for this call, possibly both for orig and term*/
//for (i=0; i<2; i++) {
//TODO: try and get the Ro session specifically for terminating dialog or originating one
//currently the way we are doing is a hack.....
//if ((ro_session = lookup_ro_session(dlg->h_entry, &dlg->callid, 0, 0))) {
ro_session_entry =
&(ro_session_table->entries[ro_session->h_entry]);
//if the Ro session is not active we don't need to do anything. This prevents
//double processing for various dialog_terminated callback events.
//If however, the call was never answered, then we can continue as normal
ro_session_lock(ro_session_table, ro_session_entry);
LM_DBG("processing dlg_terminated in Ro and session [%.*s] has active = %d", ro_session->ro_session_id.len, ro_session->ro_session_id.s, ro_session->active);
if ((!ro_session->active && (ro_session->start_time != 0)) || (ro_session->ccr_sent == 1)) {
unref_ro_session_unsafe(ro_session,1,ro_session_entry);
LM_DBG("CCR already sent or Ro Session is not active, but may have been answered [%d]\n", (int)ro_session->start_time);
ro_session_unlock(ro_session_table, ro_session_entry);
return;
}
if (ro_session->active) { // if the call was never activated, there's no timer to remove
int ret = remove_ro_timer(&ro_session->ro_tl);
if (ret < 0) {
LM_CRIT("unable to unlink the timer on ro_session %p [%.*s]\n",
ro_session, ro_session->ro_session_id.len, ro_session->ro_session_id.s);
} else if (ret > 0) {
LM_WARN("inconsistent ro timer data on ro_session %p [%.*s]\n",
ro_session, ro_session->ro_session_id.len, ro_session->ro_session_id.s);
} else {
unref++;
}
}
LM_DBG("Sending CCR STOP on Ro_Session [%p]\n", ro_session);
send_ccr_stop_with_param(ro_session, termcode, &s_reason);
ro_session->active = -1; //deleted.... terminated ....
ro_session->ccr_sent = 1;
// counter_add(ims_charging_cnts_h.active_ro_sessions, -1);
if (ro_db_mode == DB_MODE_REALTIME) {
ro_session->flags |= RO_SESSION_FLAG_DELETED;
if (update_ro_dbinfo_unsafe(ro_session) != 0) {
LM_ERR("Unable to update Ro session in DB...continuing\n");
}
}
//ro_session->start_time;
unref_ro_session_unsafe(ro_session, 1+unref, ro_session_entry); //lock already acquired
//unref_ro_session_unsafe(ro_session, 2+unref, ro_session_entry); //lock already acquired
ro_session_unlock(ro_session_table, ro_session_entry);
//}
//}
}
}