/*%
* Remove any interfaces whose generation number is not the current one.
*/
static void
purge_old_interfaces(ns_interfacemgr_t *mgr) {
ns_interface_t *ifp, *next;
for (ifp = ISC_LIST_HEAD(mgr->interfaces); ifp != NULL; ifp = next) {
INSIST(NS_INTERFACE_VALID(ifp));
next = ISC_LIST_NEXT(ifp, link);
if (ifp->generation != mgr->generation) {
char sabuf[256];
ISC_LIST_UNLINK(ifp->mgr->interfaces, ifp, link);
isc_sockaddr_format(&ifp->addr, sabuf, sizeof(sabuf));
isc_log_write(IFMGR_COMMON_LOGARGS,
ISC_LOG_INFO,
"no longer listening on %s", sabuf);
ns_interface_shutdown(ifp);
ns_interface_detach(&ifp);
}
}
}
static isc_result_t
ns_interface_setup(ns_interfacemgr_t *mgr, isc_sockaddr_t *addr,
const char *name, ns_interface_t **ifpret,
isc_boolean_t accept_tcp, isc_dscp_t dscp)
{
isc_result_t result;
ns_interface_t *ifp = NULL;
REQUIRE(ifpret != NULL && *ifpret == NULL);
result = ns_interface_create(mgr, addr, name, &ifp);
if (result != ISC_R_SUCCESS)
return (result);
ifp->dscp = dscp;
result = ns_interface_listenudp(ifp);
if (result != ISC_R_SUCCESS)
goto cleanup_interface;
if (!ns_g_notcp && accept_tcp == ISC_TRUE) {
result = ns_interface_accepttcp(ifp);
if (result != ISC_R_SUCCESS) {
/*
* XXXRTH We don't currently have a way to easily stop
* dispatch service, so we currently return
* ISC_R_SUCCESS (the UDP stuff will work even if TCP
* creation failed). This will be fixed later.
*/
result = ISC_R_SUCCESS;
}
}
*ifpret = ifp;
return (result);
cleanup_interface:
ISC_LIST_UNLINK(ifp->mgr->interfaces, ifp, link);
ns_interface_detach(&ifp);
return (result);
}