PJ_DEF(pj_status_t) pjstun_get_mapped_addr( pj_pool_factory *pf,
int sock_cnt, pj_sock_t sock[],
const pj_str_t *srv1, int port1,
const pj_str_t *srv2, int port2,
pj_sockaddr_in mapped_addr[])
{
pjstun_setting opt;
pj_bzero(&opt, sizeof(opt));
opt.use_stun2 = PJ_FALSE;
opt.srv1 = *srv1;
opt.port1 = port1;
opt.srv2 = *srv2;
opt.port2 = port2;
return pjstun_get_mapped_addr2(pf, &opt, sock_cnt, sock, mapped_addr);
}
void
SipTransportBroker::findLocalAddressFromSTUN(pjsip_transport *transport,
pj_str_t *stunServerName,
int stunPort,
std::string &addr, pj_uint16_t &port) const
{
// Initialize the sip port with the default SIP port
port = DEFAULT_SIP_PORT;
// Initialize the sip address with the hostname
const pj_str_t *pjMachineName = pj_gethostname();
addr = std::string(pjMachineName->ptr, pjMachineName->slen);
// Update address and port with active transport
RETURN_IF_NULL(transport, "Transport is NULL in findLocalAddress, using local address %s:%d", addr.c_str(), port);
IpAddr mapped_addr;
pj_sock_t sipSocket = pjsip_udp_transport_get_socket(transport);
const pjstun_setting stunOpt = {PJ_TRUE, *stunServerName, stunPort, *stunServerName, stunPort};
const pj_status_t stunStatus = pjstun_get_mapped_addr2(&cp_.factory, &stunOpt, 1, &sipSocket, &static_cast<pj_sockaddr_in&>(mapped_addr));
switch (stunStatus) {
case PJLIB_UTIL_ESTUNNOTRESPOND:
ERROR("No response from STUN server %.*s", stunServerName->slen, stunServerName->ptr);
return;
case PJLIB_UTIL_ESTUNSYMMETRIC:
ERROR("Different mapped addresses are returned by servers.");
return;
case PJ_SUCCESS:
port = mapped_addr.getPort();
addr = mapped_addr.toString();
default:
break;
}
WARN("Using address %s provided by STUN server %.*s",
IpAddr(mapped_addr).toString(true).c_str(), stunServerName->slen, stunServerName->ptr);
}
