/**
* Create a new leg object
*
* @param agent agent object
* @param callback function which is called for each
* incoming request belonging to this leg
* @param magic call leg context
* @param i optional @CallID
* (if @c NULL, an ID generated by @b NTA is used)
* @param from optional @From (local address)
* @param to optional @To (remote address)
* @param extra optional extra header
* @param headers va_list of optional extra headers
*
* @deprecated Use nta_leg_tcreate() instead.
*/
nta_leg_t *nta_leg_vcreate(nta_agent_t *agent,
nta_request_f *callback,
nta_leg_magic_t *magic,
sip_call_id_t const *i,
sip_from_t const *from,
sip_to_t const *to,
void const *extra, va_list headers)
{
sip_route_t const *route = NULL;
sip_cseq_t const *cseq = NULL;
for (; extra ; extra = va_arg(headers, void *)) {
sip_header_t const *h = (sip_header_t const *)extra;
if (h == SIP_NONE)
continue;
else if (sip_call_id_p(h)) {
if (i == NULL) i = h->sh_call_id;
}
else if (sip_from_p(h)) {
if (from == NULL) from = h->sh_from;
}
else if (sip_to_p(h)) {
if (to == NULL) to = h->sh_to;
}
else if (sip_route_p(h)) {
route = h->sh_route;
}
else if (sip_cseq_p(h)) {
cseq = h->sh_cseq;
}
else {
SU_DEBUG_3(("nta_leg_create: extra header %s\n",
sip_header_name(h, 0)));
}
}
return nta_leg_tcreate(agent, callback, magic,
NTATAG_NO_DIALOG(i == SIP_NONE->sh_call_id),
TAG_IF(i != SIP_NONE->sh_call_id, SIPTAG_CALL_ID(i)),
TAG_IF(from != SIP_NONE->sh_from, SIPTAG_FROM(from)),
TAG_IF(to != SIP_NONE->sh_to, SIPTAG_TO(to)),
SIPTAG_ROUTE(route),
SIPTAG_CSEQ(cseq),
TAG_END());
}
/** Send a BYE to an INVITE.
*
* @deprecated
* This function should used only if application requires
* RFC2543 compatibility.
*/
nta_outgoing_t *nta_outgoing_tbye(nta_outgoing_t *orq,
nta_response_f *callback,
nta_outgoing_magic_t *magic,
url_string_t const *route_url,
tag_type_t tag, tag_value_t value, ...)
{
msg_t *msg;
sip_t *sip, *inv;
sip_cseq_t *cs;
sip_request_t *rq;
su_home_t *home;
url_string_t *url;
if (orq == NULL || orq->orq_method != sip_method_invite)
return NULL;
inv = sip_object(orq->orq_request);
msg = nta_msg_create(orq->orq_agent, 0);
home = msg_home(msg);
sip = sip_object(msg);
if (inv == NULL || sip == NULL) {
msg_destroy(msg);
return NULL;
}
sip_add_tl(msg, sip,
SIPTAG_TO(inv->sip_to),
SIPTAG_FROM(inv->sip_from),
SIPTAG_CALL_ID(inv->sip_call_id),
SIPTAG_ROUTE(inv->sip_route),
TAG_END());
url = (url_string_t *)inv->sip_request->rq_url;
rq = sip_request_create(home, SIP_METHOD_BYE, url, NULL);
sip_header_insert(msg, sip, (sip_header_t*)rq);
cs = sip_cseq_create(home, inv->sip_cseq->cs_seq + 1, SIP_METHOD_BYE);
sip_header_insert(msg, sip, (sip_header_t*)cs);
return nta_outgoing_mcreate(orq->orq_agent, callback, magic,
route_url, msg);
}
/** @internal Create a message template for keepalive. */
static int create_keepalive_message(outbound_t *ob, sip_t const *regsip)
{
msg_t *msg = nta_msg_create(ob->ob_nta, MSG_FLG_COMPACT), *previous;
sip_t *osip = sip_object(msg);
sip_contact_t *m = ob->ob_rcontact;
unsigned d = ob->ob_keepalive.interval;
if (msg == NULL)
return -1;
assert(regsip); assert(regsip->sip_request);
if (m && m->m_params) {
sip_accept_contact_t *ac;
size_t i;
int features = 0;
ac = sip_accept_contact_make(msg_home(msg), "*;require;explicit");
for (i = 0; m->m_params[i]; i++) {
char const *s = m->m_params[i];
if (!sip_is_callerpref(s))
continue;
features++;
s = su_strdup(msg_home(msg), s);
msg_header_add_param(msg_home(msg), ac->cp_common, s);
}
if (features)
msg_header_insert(msg, NULL, (void *)ac);
else
msg_header_free(msg_home(msg), (void *)ac);
}
if (0 >
/* Duplicate essential headers from REGISTER request: */
sip_add_tl(msg, osip,
SIPTAG_TO(regsip->sip_to),
SIPTAG_FROM(regsip->sip_from),
/* XXX - we should only use loose routing here */
/* XXX - if we used strict routing,
the route header/request_uri must be restored
*/
SIPTAG_ROUTE(regsip->sip_route),
/* Add Max-Forwards 0 */
TAG_IF(d, SIPTAG_MAX_FORWARDS_STR("0")),
TAG_IF(d, SIPTAG_SUBJECT_STR("KEEPALIVE")),
SIPTAG_CALL_ID_STR(ob->ob_cookie),
SIPTAG_ACCEPT_STR(outbound_content_type),
TAG_END()) ||
/* Create request-line, Call-ID, CSeq */
nta_msg_request_complete(msg,
nta_default_leg(ob->ob_nta),
SIP_METHOD_OPTIONS,
(void *)regsip->sip_to->a_url) < 0 ||
msg_serialize(msg, (void *)osip) < 0 ||
msg_prepare(msg) < 0)
return msg_destroy(msg), -1;
previous = ob->ob_keepalive.msg;
ob->ob_keepalive.msg = msg;
msg_destroy(previous);
return 0;
}
