Function do_routing

modules/drouting/drouting.c:3218–3736

static int do_routing(struct sip_msg* msg, struct head_db *part, int grp,
													int flags, str* whitelist)
{
	static unsigned short *dsts_idx = NULL;
	static unsigned short dsts_idx_size = 0;
	static unsigned short *carrier_idx = NULL;
	static unsigned short carrier_idx_size = 0;
	struct to_body  *from;
	struct sip_uri  uri;
	rt_info_t  *rt_info;
	pv_value_t pv_val;
	struct usr_avp *avp_prefix=NULL, *avp_index=NULL;
	pgw_list_t *dst, *cdst;
	pgw_list_t *wl_list;
	unsigned int prefix_len;
	int rule_idx;
	struct head_db *current_partition=NULL;
	unsigned short wl_len;
	str username;
	int i, j, n;
	int_str val;
	str ruri;
	str next_carrier_attrs = {NULL, 0};
	str next_gw_attrs = {NULL, 0};
	int ret, fret;
	char tmp;
	char *ruri_buf;

	ret = -1;
	ruri_buf = NULL;
	wl_list = NULL;
	rt_info = NULL;

	if (use_partitions && part==NULL) {
		/* WILDCARD partition */
		for (current_partition = head_db_start;
		current_partition; current_partition = current_partition->next) {
			ret=do_routing( msg, current_partition, grp, flags, whitelist);
			if (ret > 0) {
				if (partition_pvar.s) {
					pv_val.rs = current_partition->partition;
					pv_val.flags = PV_VAL_STR;
					if (pv_set_value(msg, &partition_spec, 0, &pv_val) != 0) {
						LM_ERR("cannot print the PV-formatted"
								" partition string\n");
						return -1;
					}
				}
				break;
			}
		}

		/* ret must be less than 0 here if nothing found */
		return ret;
	} else {
		current_partition = part;
	}