/** @internal Create a handle for processing incoming request */
nua_handle_t *nua_stack_incoming_handle(nua_t *nua,
nta_incoming_t *irq,
sip_t const *sip,
int create_dialog)
{
nua_handle_t *nh;
url_t const *url;
sip_to_t to[1];
sip_from_t from[1];
assert(sip && sip->sip_from && sip->sip_to);
if (sip->sip_contact)
url = sip->sip_contact->m_url;
else
url = sip->sip_from->a_url;
/* Strip away parameters */
sip_from_init(from)->a_display = sip->sip_to->a_display;
*from->a_url = *sip->sip_to->a_url;
sip_to_init(to)->a_display = sip->sip_from->a_display;
*to->a_url = *sip->sip_from->a_url;
nh = nh_create(nua,
NUTAG_URL((url_string_t *)url), /* Remote target */
SIPTAG_TO(to), /* Local AoR */
SIPTAG_FROM(from), /* Remote AoR */
TAG_END());
if (nh && nua_stack_init_handle(nua, nh, NULL) < 0)
nh_destroy(nua, nh), nh = NULL;
if (nh && create_dialog) {
struct nua_dialog_state *ds = nh->nh_ds;
nua_dialog_store_peer_info(nh, ds, sip);
ds->ds_leg = nta_leg_tcreate(nua->nua_nta, nua_stack_process_request, nh,
SIPTAG_CALL_ID(sip->sip_call_id),
SIPTAG_FROM(sip->sip_to),
SIPTAG_TO(sip->sip_from),
NTATAG_REMOTE_CSEQ(sip->sip_cseq->cs_seq),
TAG_END());
if (!ds->ds_leg || !nta_leg_tag(ds->ds_leg, nta_incoming_tag(irq, NULL)))
nh_destroy(nua, nh), nh = NULL;
}
if (nh)
nua_dialog_uas_route(nh, nh->nh_ds, sip, 1);
return nh;
}
/** Remove dialog information. */
int nua_dialog_zap(nua_owner_t *own,
nua_dialog_state_t *ds)
{
/* zap peer info */
nua_dialog_store_peer_info(own, ds, NULL);
/* Local Contact */
msg_header_free(own, (msg_header_t *)ds->ds_ltarget), ds->ds_ltarget = NULL;
/* Leg */
nta_leg_destroy(ds->ds_leg), ds->ds_leg = NULL;
/* Remote tag */
su_free(own, (void *)ds->ds_remote_tag), ds->ds_remote_tag = NULL;
/* Ready to set route/remote target */
ds->ds_route = 0;
return 0;
}
/** Process response to the client request.
*
* The response can be generated by the stack (@a sip is NULL) or
* returned by the remote server.
*
* @retval 0 if response event was preliminary
* @retval 1 if response event was final
* @retval 2 if response event destroyed the handle, too.
*/
int nua_client_response(nua_client_request_t *cr,
int status,
char const *phrase,
sip_t const *sip)
{
nua_handle_t *nh = cr->cr_owner;
nua_dialog_usage_t *du = cr->cr_usage;
int retval = 0;
if (cr->cr_restarting)
return 0;
nua_client_request_ref(cr);
cr->cr_status = status;
cr->cr_phrase = phrase;
if (status < 200) {
/* Xyzzy */
}
else if (sip && nua_client_check_restart(cr, status, phrase, sip)) {
nua_client_request_unref(cr);
return 0;
}
else if (status < 300) {
if (cr->cr_terminating) {
cr->cr_terminated = 1;
}
else {
if (sip) {
if (cr->cr_contactize)
nua_dialog_uac_route(nh, nh->nh_ds, sip, 1, cr->cr_initial);
nua_dialog_store_peer_info(nh, nh->nh_ds, sip);
}
if (du && du->du_cr == cr)
du->du_ready = 1;
}
}
else {
sip_method_t method = cr->cr_method;
int terminated, graceful = 1;
if (status < 700)
terminated = sip_response_terminates_dialog(status, method, &graceful);
else
/* XXX - terminate usage by all internal error responses */
terminated = 0, graceful = 1;
if (terminated < 0)
cr->cr_terminated = terminated;
else if (cr->cr_terminating || terminated)
cr->cr_terminated = 1;
else if (graceful)
cr->cr_graceful = 1;
}
if (status < 200) {
if (cr->cr_methods->crm_preliminary)
cr->cr_methods->crm_preliminary(cr, status, phrase, sip);
else
nua_base_client_response(cr, status, phrase, sip, NULL);
cr->cr_phrase = NULL;
}
else {
if (cr->cr_methods->crm_recv)
retval = cr->cr_methods->crm_recv(cr, status, phrase, sip);
else
retval = nua_base_client_response(cr, status, phrase, sip, NULL);
}
nua_client_request_unref(cr);
return retval;
}
