Function b2b_prescript_f

modules/b2b_entities/dlg.c:848–1619

int b2b_prescript_f(struct sip_msg *msg, void *uparam)
{
	str b2b_key;
	b2b_dlg_t* dlg = 0, *aux_dlg;
	unsigned int hash_index, local_index;
	b2b_notify_t b2b_cback;
	str logic_key= {NULL,0};
	b2b_table table = NULL;
	int method_value;
	str from_tag;
	str to_tag;
	str callid;
	struct cell* tm_tran;
	int ret;
	str host;
	int port;
	int etype= B2B_NONE;
	int dlg_state = 0;
	struct sip_uri puri;
	struct hdr_field *route_hdr;
	rr_t *rt;
	int b2b_ev = -1;
	bin_packet_t storage;
	struct b2b_context *ctx;
	int b2b_cb_flags = 0;
	unsigned int ua_flags = 0;
	int ua_ev_type = -1;
	dlg_leg_t *leg = NULL;
	int leg_idx = -1;

	storage.buffer.s = NULL;

	profiling_proc_enter( LEVEL_SIP, "B2BE_request_prescript", 0 );

	/* check if a b2b request */
	if (parse_headers(msg, HDR_EOH_F, 0) < 0)
	{
		LM_ERR("failed to parse message\n");
		goto scb_run_all;
	}
	LM_DBG("start - method = %.*s\n", msg->first_line.u.request.method.len,
		 msg->first_line.u.request.method.s);

	if(msg->route)
	{
		LM_DBG("Found route headers\n");
		route_hdr = msg->route;
		/* we accept Route hdrs only if preloaded route with out IPs */
		if (parse_rr(route_hdr) < 0) {
			LM_ERR("failed to parse Route HF\n");
			goto scb_run_all;
		}
		rt = (rr_t*)route_hdr->parsed;
		/* check if first route is local*/
		if ( parse_uri(rt->nameaddr.uri.s,rt->nameaddr.uri.len,&puri)!=0 ) {
			LM_ERR("Route uri is not valid <%.*s>\n",
				rt->nameaddr.uri.len,rt->nameaddr.uri.s);
			goto scb_run_all;