Hello,
I'm observing that Via Header domain name of type SRV is resolving as DNS A.
I looked at the code and it does support only A. It is basically setting to default SIP port check_via_address which is causing DNS A query.
Is there any specific reason to do so?
I changed the code to support SRV as below and working fine.
static int check_via_address(struct ip_addr* ip, str *name, unsigned short port, *short proto*, int resolver) { : : //if (port==0) port=SIP_PORT; if (resolver&DO_DNS){ DBG("check_via_address: doing dns lookup\n"); /* try all names ips */ he=sip_resolvehost(name, &port, *(char *) &proto*); /* don't use naptr */ if (he && ip->af==he->h_addrtype){ for(i=0;he && he->h_addr_list[i];i++){ if ( memcmp(&he->h_addr_list[i], ip->u.addr, ip->len)==0) return 0; } } } : : : }
/* check if IP address in Via != source IP address of signaling */ int received_test( struct sip_msg *msg ) { int rcvd;
rcvd=msg->via1->received || check_via_address(&msg->rcv.src_ip, &msg->via1->host, msg->via1->port,* msg->via1->proto*, received_dns); return rcvd; }
Thanks Jijo