void
nist_snd_23456xx (osip_transaction_t * nist, osip_event_t * evt)
{
int i;
if (nist->last_response != NULL)
{
osip_message_free (nist->last_response);
}
nist->last_response = evt->sip;
i = __osip_transaction_snd_xxx(nist, nist->last_response);
if (i != 0)
{
nist_handle_transport_error (nist, i);
return;
} else
{
if (EVT_IS_SND_STATUS_2XX (evt))
__osip_message_callback (OSIP_NIST_STATUS_2XX_SENT, nist,
nist->last_response);
else if (MSG_IS_STATUS_3XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_3XX_SENT, nist,
nist->last_response);
else if (MSG_IS_STATUS_4XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_4XX_SENT, nist,
nist->last_response);
else if (MSG_IS_STATUS_5XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_5XX_SENT, nist,
nist->last_response);
else
__osip_message_callback (OSIP_NIST_STATUS_6XX_SENT, nist,
nist->last_response);
}
if (nist->state != NIST_COMPLETED) /* start J timer */
{
osip_gettimeofday (&nist->nist_context->timer_j_start, NULL);
add_gettimeofday (&nist->nist_context->timer_j_start,
nist->nist_context->timer_j_length);
}
__osip_transaction_set_state (nist, NIST_COMPLETED);
}
void nist_snd_1xx(osip_transaction_t * nist, osip_event_t * evt)
{
int i;
if (nist->last_response != NULL) {
osip_message_free(nist->last_response);
}
nist->last_response = evt->sip;
i = __osip_transaction_snd_xxx(nist, nist->last_response);
if (i != 0) {
nist_handle_transport_error(nist, i);
return;
} else
__osip_message_callback(OSIP_NIST_STATUS_1XX_SENT, nist,
nist->last_response);
__osip_transaction_set_state(nist, NIST_PROCEEDING);
}
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_snd_23456xx (osip_transaction_t * nist, osip_event_t * evt)
{
int i;
osip_via_t *via;
osip_t *osip = (osip_t *) nist->config;
if (nist->last_response != NULL)
{
osip_message_free (nist->last_response);
}
nist->last_response = evt->sip;
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 (EVT_IS_SND_STATUS_2XX (evt))
__osip_message_callback (OSIP_NIST_STATUS_2XX_SENT, nist, nist->last_response);
else if (MSG_IS_STATUS_3XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_3XX_SENT, nist, nist->last_response);
else if (MSG_IS_STATUS_4XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_4XX_SENT, nist, nist->last_response);
else if (MSG_IS_STATUS_5XX (nist->last_response))
__osip_message_callback (OSIP_NIST_STATUS_5XX_SENT, nist, nist->last_response);
else
__osip_message_callback (OSIP_NIST_STATUS_6XX_SENT, nist, nist->last_response);
}
if (nist->state != NIST_COMPLETED) /* start J timer */
nist->nist_context->timer_j_start = time (NULL);
__osip_transaction_set_state (nist, NIST_COMPLETED);
}
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);
}
