/*!
* \brief add dlg structure to tm callbacks to wait for negative ACK
* \param t current transaction
* \param dlg current dialog
* \return 0 on success, -1 on failure
*/
int dlg_set_tm_waitack(tm_cell_t *t, dlg_cell_t *dlg)
{
dlg_iuid_t *iuid = NULL;
if(t==NULL)
return -1;
LM_DBG("registering TMCB to wait for negative ACK\n");
iuid = dlg_get_iuid_shm_clone(dlg);
if(iuid==NULL)
{
LM_ERR("failed to create dialog unique id clone\n");
goto error;
}
dlg_ref(dlg, 1);
if ( d_tmb.register_tmcb( NULL, t,
TMCB_DESTROY,
dlg_ontdestroy, (void*)iuid, dlg_iuid_sfree)<0 ) {
LM_ERR("failed to register TMCB to wait for negative ACK\n");
dlg_unref(dlg, 1);
goto error;
}
return 0;
error:
dlg_iuid_sfree(iuid);
return -1;
}
/*!
* \brief add dlg structure to tm callbacks
* \param t current transaction
* \param req current sip request
* \param dlg current dialog
* \param smode if the sip request was spiraled
* \return 0 on success, -1 on failure
*/
int dlg_set_tm_callbacks(tm_cell_t *t, sip_msg_t *req, dlg_cell_t *dlg,
int smode)
{
dlg_iuid_t *iuid = NULL;
if(t==NULL)
return -1;
if(smode==0) {
iuid = dlg_get_iuid_shm_clone(dlg);
if(iuid==NULL)
{
LM_ERR("failed to create dialog unique id clone\n");
goto error;
}
if ( d_tmb.register_tmcb( req, t,
TMCB_RESPONSE_IN|TMCB_RESPONSE_READY|TMCB_RESPONSE_FWDED|TMCB_ON_FAILURE,
dlg_onreply, (void*)iuid, dlg_iuid_sfree)<0 ) {
LM_ERR("failed to register TMCB\n");
goto error;
}
}
dlg->dflags |= DLG_FLAG_TM;
return 0;
error:
dlg_iuid_sfree(iuid);
return -1;
}
/* callback function to handle responses to the keep-alive request */
void dlg_ka_cb(struct cell* t, int type, struct tmcb_params* ps){
dlg_cell_t* dlg;
dlg_iuid_t *iuid = NULL;
if(ps->param == NULL || *ps->param == NULL) {
LM_ERR("invalid parameter\n");
return;
}
if(ps->code < 200) {
LM_DBG("receiving a provisional reply\n");
return;
}
LM_DBG("receiving a final reply %d\n",ps->code);
iuid = (dlg_iuid_t*)(*ps->param);
dlg = dlg_get_by_iuid(iuid);
if(dlg==0) {
dlg_iuid_sfree(iuid);
return;
}
if(ps->code==408 || ps->code==481) {
if(update_dlg_timer(&dlg->tl, 10)<0) {
LM_ERR("failed to update dialog lifetime\n");
goto done;
}
dlg->lifetime = 10;
dlg->dflags |= DLG_FLAG_CHANGED;
}
done:
dlg_unref(dlg, 1);
dlg_iuid_sfree(iuid);
}
/* callback function to handle responses to the BYE request */
void bye_reply_cb(struct cell* t, int type, struct tmcb_params* ps){
struct dlg_cell* dlg;
int event, old_state, new_state, unref, ret;
dlg_iuid_t *iuid = NULL;
if(ps->param == NULL || *ps->param == NULL){
LM_ERR("invalid parameter\n");
return;
}
if(ps->code < 200){
LM_DBG("receiving a provisional reply\n");
return;
}
LM_DBG("receiving a final reply %d\n",ps->code);
iuid = (dlg_iuid_t*)(*ps->param);
dlg = dlg_get_by_iuid(iuid);
if(dlg==0)
return;
event = DLG_EVENT_REQBYE;
next_state_dlg(dlg, event, &old_state, &new_state, &unref);
if(new_state == DLG_STATE_DELETED && old_state != DLG_STATE_DELETED){
LM_DBG("removing dialog with h_entry %u and h_id %u\n",
dlg->h_entry, dlg->h_id);
/* remove from timer */
ret = remove_dialog_timer(&dlg->tl);
if (ret < 0) {
LM_CRIT("unable to unlink the timer on dlg %p [%u:%u] "
"with clid '%.*s' and tags '%.*s' '%.*s'\n",
dlg, dlg->h_entry, dlg->h_id,
dlg->callid.len, dlg->callid.s,
dlg->tag[DLG_CALLER_LEG].len, dlg->tag[DLG_CALLER_LEG].s,
dlg->tag[DLG_CALLEE_LEG].len, dlg->tag[DLG_CALLEE_LEG].s);
} else if (ret > 0) {
LM_WARN("inconsitent dlg timer data on dlg %p [%u:%u] "
"with clid '%.*s' and tags '%.*s' '%.*s'\n",
dlg, dlg->h_entry, dlg->h_id,
dlg->callid.len, dlg->callid.s,
dlg->tag[DLG_CALLER_LEG].len, dlg->tag[DLG_CALLER_LEG].s,
dlg->tag[DLG_CALLEE_LEG].len, dlg->tag[DLG_CALLEE_LEG].s);
} else {
unref++;
}
/* dialog terminated (BYE) */
run_dlg_callbacks( DLGCB_TERMINATED, dlg, ps->req, ps->rpl, DLG_DIR_NONE, 0);
LM_DBG("first final reply\n");
/* derefering the dialog */
dlg_unref(dlg, unref+1);
if_update_stat( dlg_enable_stats, active_dlgs, -1);
}
if(new_state == DLG_STATE_DELETED && old_state == DLG_STATE_DELETED ) {
/* trash the dialog from DB and memory */
LM_DBG("second final reply\n");
/* delete the dialog from DB */
if (dlg_db_mode)
remove_dialog_from_db(dlg);
/* force delete from mem */
dlg_unref(dlg, 1);
}
dlg_iuid_sfree(iuid);
}
