void
nict_snd_request (osip_transaction_t * nict, osip_event_t * evt)
{
int i;
osip_t *osip = (osip_t *) nict->config;
/* Here we have ict->orig_request == NULL */
nict->orig_request = evt->sip;
i = osip->cb_send_message (nict, evt->sip, nict->nict_context->destination,
nict->nict_context->port, nict->out_socket);
if (i == 0)
{
/* invoke the right callback! */
if (MSG_IS_REGISTER (evt->sip))
__osip_message_callback (OSIP_NICT_REGISTER_SENT, nict,
nict->orig_request);
else if (MSG_IS_BYE (evt->sip))
__osip_message_callback (OSIP_NICT_BYE_SENT, nict, nict->orig_request);
else if (MSG_IS_OPTIONS (evt->sip))
__osip_message_callback (OSIP_NICT_OPTIONS_SENT, nict, nict->orig_request);
else if (MSG_IS_INFO (evt->sip))
__osip_message_callback (OSIP_NICT_INFO_SENT, nict, nict->orig_request);
else if (MSG_IS_CANCEL (evt->sip))
__osip_message_callback (OSIP_NICT_CANCEL_SENT, nict, nict->orig_request);
else if (MSG_IS_NOTIFY (evt->sip))
__osip_message_callback (OSIP_NICT_NOTIFY_SENT, nict, nict->orig_request);
else if (MSG_IS_SUBSCRIBE (evt->sip))
__osip_message_callback (OSIP_NICT_SUBSCRIBE_SENT, nict,
nict->orig_request);
else
__osip_message_callback (OSIP_NICT_UNKNOWN_REQUEST_SENT, nict,
nict->orig_request);
__osip_transaction_set_state (nict, NICT_TRYING);
} else
{
nict_handle_transport_error (nict, i);
}
}
void
nist_rcv_request (osip_transaction_t * nist, osip_event_t * evt)
{
int i;
if (nist->state == NIST_PRE_TRYING) /* announce new REQUEST */
{
/* Here we have ist->orig_request == NULL */
nist->orig_request = evt->sip;
if (MSG_IS_REGISTER (evt->sip))
__osip_message_callback (OSIP_NIST_REGISTER_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_BYE (evt->sip))
__osip_message_callback (OSIP_NIST_BYE_RECEIVED, nist, nist->orig_request);
else if (MSG_IS_OPTIONS (evt->sip))
__osip_message_callback (OSIP_NIST_OPTIONS_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_INFO (evt->sip))
__osip_message_callback (OSIP_NIST_INFO_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_CANCEL (evt->sip))
__osip_message_callback (OSIP_NIST_CANCEL_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_NOTIFY (evt->sip))
__osip_message_callback (OSIP_NIST_NOTIFY_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_SUBSCRIBE (evt->sip))
__osip_message_callback (OSIP_NIST_SUBSCRIBE_RECEIVED, nist,
nist->orig_request);
else
__osip_message_callback (OSIP_NIST_UNKNOWN_REQUEST_RECEIVED, nist,
nist->orig_request);
} else /* NIST_PROCEEDING or NIST_COMPLETED */
{
/* delete retransmission */
osip_message_free (evt->sip);
__osip_message_callback (OSIP_NIST_REQUEST_RECEIVED_AGAIN, nist,
nist->orig_request);
if (nist->last_response != NULL) /* retransmit last response */
{
i = __osip_transaction_snd_xxx(nist, nist->last_response);
if (i != 0)
{
nist_handle_transport_error (nist, i);
return;
} else
{
if (MSG_IS_STATUS_1XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_1XX_SENT, nist,
nist->last_response);
else if (MSG_IS_STATUS_2XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_2XX_SENT_AGAIN,
nist, nist->last_response);
else
__osip_message_callback (OSIP_NIST_STATUS_3456XX_SENT_AGAIN,
nist, nist->last_response);
return;
}
}
/* we are already in the proper state */
return;
}
/* we come here only if it was the first REQUEST received */
__osip_transaction_set_state (nist, NIST_TRYING);
}
void
nist_rcv_request (osip_transaction_t * nist, osip_event_t * evt)
{
int i;
osip_t *osip = (osip_t *) nist->config;
if (nist->state == NIST_PRE_TRYING) /* announce new REQUEST */
{
/* Here we have ist->orig_request == NULL */
nist->orig_request = evt->sip;
if (MSG_IS_REGISTER (evt->sip))
__osip_message_callback (OSIP_NIST_REGISTER_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_BYE (evt->sip))
__osip_message_callback (OSIP_NIST_BYE_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_OPTIONS (evt->sip))
__osip_message_callback (OSIP_NIST_OPTIONS_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_INFO (evt->sip))
__osip_message_callback (OSIP_NIST_INFO_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_CANCEL (evt->sip))
__osip_message_callback (OSIP_NIST_CANCEL_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_NOTIFY (evt->sip))
__osip_message_callback (OSIP_NIST_NOTIFY_RECEIVED, nist,
nist->orig_request);
else if (MSG_IS_SUBSCRIBE (evt->sip))
__osip_message_callback (OSIP_NIST_SUBSCRIBE_RECEIVED, nist,
nist->orig_request);
else
__osip_message_callback (OSIP_NIST_UNKNOWN_REQUEST_RECEIVED, nist,
nist->orig_request);
}
else /* NIST_PROCEEDING or NIST_COMPLETED */
{
/* delete retransmission */
osip_message_free (evt->sip);
__osip_message_callback (OSIP_NIST_REQUEST_RECEIVED_AGAIN, nist,
nist->orig_request);
if (nist->last_response != NULL) /* retransmit last response */
{
osip_via_t *via;
via = (osip_via_t *) osip_list_get (nist->last_response->vias, 0);
if (via)
{
char *host;
int port;
osip_generic_param_t *maddr;
osip_generic_param_t *received;
osip_generic_param_t *rport;
osip_via_param_get_byname (via, "maddr", &maddr);
osip_via_param_get_byname (via, "received", &received);
osip_via_param_get_byname (via, "rport", &rport);
/* 1: user should not use the provided information
(host and port) if they are using a reliable
transport. Instead, they should use the already
open socket attached to this transaction. */
/* 2: check maddr and multicast usage */
if (maddr != NULL)
host = maddr->gvalue;
/* we should check if this is a multicast address and use
set the "ttl" in this case. (this must be done in the
UDP message (not at the SIP layer) */
else if (received != NULL)
host = received->gvalue;
else
host = via->host;
if (rport == NULL || rport->gvalue == NULL)
{
if (via->port != NULL)
port = osip_atoi (via->port);
else
port = 5060;
}
else
port = osip_atoi (rport->gvalue);
i = osip->cb_send_message (nist, nist->last_response, host,
port, nist->out_socket);
}
else
i = -1;
if (i != 0)
{
nist_handle_transport_error (nist, i);
return;
}
else
{
if (MSG_IS_STATUS_1XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_1XX_SENT, nist,
nist->last_response);
else if (MSG_IS_STATUS_2XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_2XX_SENT_AGAIN, nist,
nist->last_response);
else
__osip_message_callback (OSIP_NIST_STATUS_3456XX_SENT_AGAIN, nist,
nist->last_response);
return;
}
}
/* we are already in the proper state */
return;
}
/* we come here only if it was the first REQUEST received */
__osip_transaction_set_state (nist, NIST_TRYING);
}
void
nict_snd_request (osip_transaction_t * nict, osip_event_t * evt)
{
int i;
osip_t *osip = (osip_t *) nict->config;
/* Here we have ict->orig_request == NULL */
nict->orig_request = evt->sip;
i = osip->cb_send_message (nict, evt->sip, nict->nict_context->destination, nict->nict_context->port, nict->out_socket);
if (i >= 0) {
/* invoke the right callback! */
if (MSG_IS_REGISTER (evt->sip))
__osip_message_callback (OSIP_NICT_REGISTER_SENT, nict, nict->orig_request);
else if (MSG_IS_BYE (evt->sip))
__osip_message_callback (OSIP_NICT_BYE_SENT, nict, nict->orig_request);
else if (MSG_IS_OPTIONS (evt->sip))
__osip_message_callback (OSIP_NICT_OPTIONS_SENT, nict, nict->orig_request);
else if (MSG_IS_INFO (evt->sip))
__osip_message_callback (OSIP_NICT_INFO_SENT, nict, nict->orig_request);
else if (MSG_IS_CANCEL (evt->sip))
__osip_message_callback (OSIP_NICT_CANCEL_SENT, nict, nict->orig_request);
else if (MSG_IS_NOTIFY (evt->sip))
__osip_message_callback (OSIP_NICT_NOTIFY_SENT, nict, nict->orig_request);
else if (MSG_IS_SUBSCRIBE (evt->sip))
__osip_message_callback (OSIP_NICT_SUBSCRIBE_SENT, nict, nict->orig_request);
else
__osip_message_callback (OSIP_NICT_UNKNOWN_REQUEST_SENT, nict, nict->orig_request);
#ifndef USE_BLOCKINGSOCKET
/*
stop timer E in reliable transport - non blocking socket:
the message was just sent
*/
{
osip_via_t *via;
char *proto;
int k;
k = osip_message_get_via (nict->orig_request, 0, &via); /* get top via */
if (k < 0) {
nict_handle_transport_error (nict, -1);
return;
}
proto = via_get_protocol (via);
if (proto == NULL) {
nict_handle_transport_error (nict, -1);
return;
}
if (i == 0) { /* but message was really sent */
if (osip_strcasecmp (proto, "TCP") != 0 && osip_strcasecmp (proto, "TLS") != 0 && osip_strcasecmp (proto, "SCTP") != 0) {
}
else { /* reliable protocol is used: */
nict->nict_context->timer_e_length = -1; /* E is not ACTIVE */
nict->nict_context->timer_e_start.tv_sec = -1;
}
} else {
if (osip_strcasecmp (proto, "TCP") != 0 && osip_strcasecmp (proto, "TLS") != 0 && osip_strcasecmp (proto, "SCTP") != 0) {
}
else { /* reliable protocol is used: */
nict->nict_context->timer_e_length = DEFAULT_T1_TCP_PROGRESS;
}
}
}
#endif
if (nict->nict_context->timer_e_length > 0) {
osip_gettimeofday (&nict->nict_context->timer_e_start, NULL);
add_gettimeofday (&nict->nict_context->timer_e_start, nict->nict_context->timer_e_length);
}
__osip_transaction_set_state (nict, NICT_TRYING);
}
else {
nict_handle_transport_error (nict, i);
}
}
char *
generating_sdp_answer(osip_message_t *request, osip_negotiation_ctx_t *context)
{
sdp_message_t *remote_sdp;
sdp_message_t *local_sdp = NULL;
int i;
char *local_body;
if (context==NULL)
return NULL;
local_body = NULL;
if (MSG_IS_INVITE(request)||MSG_IS_OPTIONS(request)||MSG_IS_RESPONSE_FOR(request, "INVITE"))
{
osip_body_t *body;
body = (osip_body_t *)osip_list_get(&request->bodies,0);
if(body == NULL)
return NULL;
/* remote_sdp = (sdp_message_t *) osip_malloc(sizeof(sdp_message_t)); */
i = sdp_message_init(&remote_sdp);
if (i!=0) return NULL;
/* WE ASSUME IT IS A SDP BODY AND THAT */
/* IT IS THE ONLY ONE, OF COURSE, THIS IS */
/* NOT TRUE */
i = sdp_message_parse(remote_sdp,body->body);
if (i!=0) return NULL;
i = osip_negotiation_ctx_set_remote_sdp(context, remote_sdp);
i = osip_negotiation_ctx_execute_negotiation(eXosip.osip_negotiation, context);
if (i==200)
{
local_sdp = osip_negotiation_ctx_get_local_sdp(context);
i = sdp_message_to_str(local_sdp, &local_body);
remote_sdp = osip_negotiation_ctx_get_remote_sdp(context);
sdp_message_free(remote_sdp);
osip_negotiation_ctx_set_remote_sdp(context, NULL);
if (i!=0) {
OSIP_TRACE(osip_trace(__FILE__,__LINE__,OSIP_ERROR,NULL,"ERROR: Could not parse local SDP answer %i\n",i));
return NULL;
}
return local_body;
}
else if (i==415)
{
OSIP_TRACE(osip_trace(__FILE__,__LINE__,OSIP_INFO1,NULL,"WARNING: Unsupported media %i\n",i));
}
else
{
OSIP_TRACE(osip_trace(__FILE__,__LINE__,OSIP_ERROR,NULL,"ERROR: while building answer to SDP (%i)\n",i));
}
remote_sdp = osip_negotiation_ctx_get_remote_sdp(context);
sdp_message_free(remote_sdp);
osip_negotiation_ctx_set_remote_sdp(context, NULL);
}
return NULL;
}
