/**
* Comparison function which compares current status and last status
* in current branch.
* It is a simplified method how to detect incoming retransmited responses.
* @return 1 if @status is less or equal @tm.uac.last_status (retransmited response)
* otherwise returns -1 (not retransmited response).
* @see get_last_status
*/
static int select_tm_uac_response_retransmission(str* res, select_t* s, struct sip_msg* msg) {
int last_status, rv;
if (get_last_status(msg, &last_status) < 0) return -1;
rv = msg->first_line.u.reply.statuscode <= last_status ? 1 : -1;
/* DBG("select_tm_uac_response_retransmission: %d\n", rv); */
return int_to_static_buffer(res, rv);
}
/* TODO: implement a general select function that works with any
* kind of requests not only with negative ACKs
*/
static int select_tm_uas_request_neg_ack_retransmission(str* res, select_t* s, struct sip_msg* msg) {
int rv;
SELECT_check(msg);
rv = ((msg->REQ_METHOD == METHOD_ACK)
&& (t->uas.status >= 300)
/* Misuse the timer flag of the 200 retransmission buffer
* to check whether or not this is an ACK retransmission.
* Warning: this check is not 100% fail-safe because two
* ACKs can be processed in parallel and none of them
* may be considered a retransmission - Miklos */
&& (t->uas.response.t_active == 0)) ? 1 : -1;
return int_to_static_buffer(res, rv);
}
int select_sys_server_id(str* res, select_t* s, struct sip_msg* msg) {
return int_to_static_buffer(res, server_id);
}
static int select_tm_uas_status(str* res, select_t* s, struct sip_msg* msg) {
SELECT_check(msg);
return int_to_static_buffer(res, t->uas.status);
}
static int select_tm_uac_status(str* res, select_t* s, struct sip_msg* msg) {
SELECT_check_branch(s, msg);
return int_to_static_buffer(res, t->uac[BRANCH_NO(s)].last_received);
}
/**
* Get last status in current branch.
*/
static int select_tm_uac_last_status(str* res, select_t* s, struct sip_msg* msg) {
int last_status;
if (get_last_status(msg, &last_status) < 0) return -1;
return int_to_static_buffer(res, last_status);
}
static int select_tm_uac_relayed(str* res, select_t* s, struct sip_msg* msg) {
SELECT_check(msg);
return int_to_static_buffer(res, t->relayed_reply_branch);
}
static int select_tm_uac_count(str* res, select_t* s, struct sip_msg* msg) {
SELECT_check(msg);
return int_to_static_buffer(res, t->nr_of_outgoings);
}