static isc_result_t
ns_interface_accepttcp(ns_interface_t *ifp) {
isc_result_t result;
/*
* Open a TCP socket.
*/
result = isc_socket_create(ifp->mgr->socketmgr,
isc_sockaddr_pf(&ifp->addr),
isc_sockettype_tcp,
&ifp->tcpsocket);
if (result != ISC_R_SUCCESS) {
isc_log_write(IFMGR_COMMON_LOGARGS, ISC_LOG_ERROR,
"creating TCP socket: %s",
isc_result_totext(result));
goto tcp_socket_failure;
}
isc_socket_setname(ifp->tcpsocket, "dispatcher", NULL);
#ifndef ISC_ALLOW_MAPPED
isc_socket_ipv6only(ifp->tcpsocket, ISC_TRUE);
#endif
result = isc_socket_bind(ifp->tcpsocket, &ifp->addr);
if (result != ISC_R_SUCCESS) {
isc_log_write(IFMGR_COMMON_LOGARGS, ISC_LOG_ERROR,
"binding TCP socket: %s",
isc_result_totext(result));
goto tcp_bind_failure;
}
result = isc_socket_listen(ifp->tcpsocket, ns_g_listen);
if (result != ISC_R_SUCCESS) {
isc_log_write(IFMGR_COMMON_LOGARGS, ISC_LOG_ERROR,
"listening on TCP socket: %s",
isc_result_totext(result));
goto tcp_listen_failure;
}
/*
* If/when there a multiple filters listen to the
* result.
*/
(void)isc_socket_filter(ifp->tcpsocket, "dataready");
result = ns_clientmgr_createclients(ifp->clientmgr,
ifp->ntcptarget, ifp,
ISC_TRUE);
if (result != ISC_R_SUCCESS) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"TCP ns_clientmgr_createclients(): %s",
isc_result_totext(result));
goto accepttcp_failure;
}
return (ISC_R_SUCCESS);
accepttcp_failure:
tcp_listen_failure:
tcp_bind_failure:
isc_socket_detach(&ifp->tcpsocket);
tcp_socket_failure:
return (ISC_R_SUCCESS);
}
static isc_result_t
ns_interface_listenudp(ns_interface_t *ifp) {
isc_result_t result;
unsigned int attrs;
unsigned int attrmask;
int disp, i;
attrs = 0;
attrs |= DNS_DISPATCHATTR_UDP;
if (isc_sockaddr_pf(&ifp->addr) == AF_INET)
attrs |= DNS_DISPATCHATTR_IPV4;
else
attrs |= DNS_DISPATCHATTR_IPV6;
attrs |= DNS_DISPATCHATTR_NOLISTEN;
attrmask = 0;
attrmask |= DNS_DISPATCHATTR_UDP | DNS_DISPATCHATTR_TCP;
attrmask |= DNS_DISPATCHATTR_IPV4 | DNS_DISPATCHATTR_IPV6;
ifp->nudpdispatch = ISC_MIN(ns_g_udpdisp, MAX_UDP_DISPATCH);
for (disp = 0; disp < ifp->nudpdispatch; disp++) {
result = dns_dispatch_getudp_dup(ifp->mgr->dispatchmgr,
ns_g_socketmgr,
ns_g_taskmgr, &ifp->addr,
4096, 1000, 32768, 8219, 8237,
attrs, attrmask,
&ifp->udpdispatch[disp],
disp == 0
? NULL
: ifp->udpdispatch[0]);
if (result != ISC_R_SUCCESS) {
isc_log_write(IFMGR_COMMON_LOGARGS, ISC_LOG_ERROR,
"could not listen on UDP socket: %s",
isc_result_totext(result));
goto udp_dispatch_failure;
}
}
result = ns_clientmgr_createclients(ifp->clientmgr, ifp->nudpdispatch,
ifp, ISC_FALSE);
if (result != ISC_R_SUCCESS) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"UDP ns_clientmgr_createclients(): %s",
isc_result_totext(result));
goto addtodispatch_failure;
}
return (ISC_R_SUCCESS);
addtodispatch_failure:
for (i = disp - 1; i <= 0; i--) {
dns_dispatch_changeattributes(ifp->udpdispatch[i], 0,
DNS_DISPATCHATTR_NOLISTEN);
dns_dispatch_detach(&(ifp->udpdispatch[i]));
}
ifp->nudpdispatch = 0;
udp_dispatch_failure:
return (result);
}
static isc_result_t
ns_interface_listenudp(ns_interface_t *ifp) {
isc_result_t result;
unsigned int attrs;
unsigned int attrmask;
attrs = 0;
attrs |= DNS_DISPATCHATTR_UDP;
if (isc_sockaddr_pf(&ifp->addr) == AF_INET)
attrs |= DNS_DISPATCHATTR_IPV4;
else
attrs |= DNS_DISPATCHATTR_IPV6;
attrs |= DNS_DISPATCHATTR_NOLISTEN;
attrmask = 0;
attrmask |= DNS_DISPATCHATTR_UDP | DNS_DISPATCHATTR_TCP;
attrmask |= DNS_DISPATCHATTR_IPV4 | DNS_DISPATCHATTR_IPV6;
result = dns_dispatch_getudp(ifp->mgr->dispatchmgr, ns_g_socketmgr,
ns_g_taskmgr, &ifp->addr,
4096, 1000, 32768, 8219, 8237,
attrs, attrmask, &ifp->udpdispatch);
if (result != ISC_R_SUCCESS) {
isc_log_write(IFMGR_COMMON_LOGARGS, ISC_LOG_ERROR,
"could not listen on UDP socket: %s",
isc_result_totext(result));
goto udp_dispatch_failure;
}
result = ns_clientmgr_createclients(ifp->clientmgr, ns_g_cpus,
ifp, ISC_FALSE);
if (result != ISC_R_SUCCESS) {
UNEXPECTED_ERROR(__FILE__, __LINE__,
"UDP ns_clientmgr_createclients(): %s",
isc_result_totext(result));
goto addtodispatch_failure;
}
return (ISC_R_SUCCESS);
addtodispatch_failure:
dns_dispatch_changeattributes(ifp->udpdispatch, 0,
DNS_DISPATCHATTR_NOLISTEN);
dns_dispatch_detach(&ifp->udpdispatch);
udp_dispatch_failure:
return (result);
}