struct listen_port* daemon_remote_open_ports(struct config_file* cfg)
{
struct listen_port* l = NULL;
log_assert(cfg->remote_control_enable && cfg->control_port);
if(cfg->control_ifs) {
struct config_strlist* p;
for(p = cfg->control_ifs; p; p = p->next) {
if(!add_open(p->str, cfg->control_port, &l, 1)) {
listening_ports_free(l);
return NULL;
}
}
} else {
/* defaults */
if(cfg->do_ip6 &&
!add_open("::1", cfg->control_port, &l, 0)) {
listening_ports_free(l);
return NULL;
}
if(cfg->do_ip4 &&
!add_open("127.0.0.1", cfg->control_port, &l, 1)) {
listening_ports_free(l);
return NULL;
}
}
return l;
}
void
daemon_delete(struct daemon* daemon)
{
size_t i;
if(!daemon)
return;
modstack_desetup(&daemon->mods, daemon->env);
daemon_remote_delete(daemon->rc);
for(i = 0; i < daemon->num_ports; i++)
listening_ports_free(daemon->ports[i]);
free(daemon->ports);
listening_ports_free(daemon->rc_ports);
if(daemon->env) {
slabhash_delete(daemon->env->msg_cache);
rrset_cache_delete(daemon->env->rrset_cache);
infra_delete(daemon->env->infra_cache);
edns_known_options_delete(daemon->env);
auth_zones_delete(daemon->env->auth_zones);
}
ub_randfree(daemon->rand);
alloc_clear(&daemon->superalloc);
acl_list_delete(daemon->acl);
free(daemon->chroot);
free(daemon->pidfile);
free(daemon->env);
#ifdef HAVE_SSL
SSL_CTX_free((SSL_CTX*)daemon->listen_sslctx);
SSL_CTX_free((SSL_CTX*)daemon->connect_sslctx);
#endif
free(daemon);
#ifdef LEX_HAS_YYLEX_DESTROY
/* lex cleanup */
ub_c_lex_destroy();
#endif
/* libcrypto cleanup */
#ifdef HAVE_SSL
# if defined(USE_GOST) && defined(HAVE_LDNS_KEY_EVP_UNLOAD_GOST)
sldns_key_EVP_unload_gost();
# endif
# if HAVE_DECL_SSL_COMP_GET_COMPRESSION_METHODS && HAVE_DECL_SK_SSL_COMP_POP_FREE
# ifndef S_SPLINT_S
# if OPENSSL_VERSION_NUMBER < 0x10100000
sk_SSL_COMP_pop_free(comp_meth, (void(*)())CRYPTO_free);
# endif
# endif
# endif
# ifdef HAVE_OPENSSL_CONFIG
EVP_cleanup();
# if OPENSSL_VERSION_NUMBER < 0x10100000
ENGINE_cleanup();
# endif
CONF_modules_free();
# endif
# ifdef HAVE_CRYPTO_CLEANUP_ALL_EX_DATA
CRYPTO_cleanup_all_ex_data(); /* safe, no more threads right now */
# endif
# ifdef HAVE_ERR_FREE_STRINGS
ERR_free_strings();
# endif
# if OPENSSL_VERSION_NUMBER < 0x10100000
RAND_cleanup();
# endif
# if defined(HAVE_SSL) && defined(OPENSSL_THREADS) && !defined(THREADS_DISABLED)
ub_openssl_lock_delete();
# endif
#ifndef HAVE_ARC4RANDOM
_ARC4_LOCK_DESTROY();
#endif
#elif defined(HAVE_NSS)
NSS_Shutdown();
#endif /* HAVE_SSL or HAVE_NSS */
checklock_stop();
#ifdef USE_WINSOCK
if(WSACleanup() != 0) {
log_err("Could not WSACleanup: %s",
wsa_strerror(WSAGetLastError()));
}
#endif
}
struct listen_port*
listening_ports_open(struct config_file* cfg)
{
struct listen_port* list = NULL;
struct addrinfo hints;
int i, do_ip4, do_ip6;
int do_tcp, do_auto;
char portbuf[32];
snprintf(portbuf, sizeof(portbuf), "%d", cfg->port);
do_ip4 = cfg->do_ip4;
do_ip6 = cfg->do_ip6;
do_tcp = cfg->do_tcp;
do_auto = cfg->if_automatic && cfg->do_udp;
if(cfg->incoming_num_tcp == 0)
do_tcp = 0;
/* getaddrinfo */
memset(&hints, 0, sizeof(hints));
hints.ai_flags = AI_PASSIVE;
/* no name lookups on our listening ports */
if(cfg->num_ifs > 0)
hints.ai_flags |= AI_NUMERICHOST;
hints.ai_family = AF_UNSPEC;
#ifndef INET6
do_ip6 = 0;
#endif
if(!do_ip4 && !do_ip6) {
return NULL;
}
/* create ip4 and ip6 ports so that return addresses are nice. */
if(do_auto || cfg->num_ifs == 0) {
if(do_ip6) {
hints.ai_family = AF_INET6;
if(!ports_create_if(do_auto?"::0":"::1",
do_auto, cfg->do_udp, do_tcp,
&hints, portbuf, &list,
cfg->so_rcvbuf, cfg->so_sndbuf,
cfg->ssl_port)) {
listening_ports_free(list);
return NULL;
}
}
if(do_ip4) {
hints.ai_family = AF_INET;
if(!ports_create_if(do_auto?"0.0.0.0":"127.0.0.1",
do_auto, cfg->do_udp, do_tcp,
&hints, portbuf, &list,
cfg->so_rcvbuf, cfg->so_sndbuf,
cfg->ssl_port)) {
listening_ports_free(list);
return NULL;
}
}
} else for(i = 0; i<cfg->num_ifs; i++) {
if(str_is_ip6(cfg->ifs[i])) {
if(!do_ip6)
continue;
hints.ai_family = AF_INET6;
if(!ports_create_if(cfg->ifs[i], 0, cfg->do_udp,
do_tcp, &hints, portbuf, &list,
cfg->so_rcvbuf, cfg->so_sndbuf,
cfg->ssl_port)) {
listening_ports_free(list);
return NULL;
}
} else {
if(!do_ip4)
continue;
hints.ai_family = AF_INET;
if(!ports_create_if(cfg->ifs[i], 0, cfg->do_udp,
do_tcp, &hints, portbuf, &list,
cfg->so_rcvbuf, cfg->so_sndbuf,
cfg->ssl_port)) {
listening_ports_free(list);
return NULL;
}
}
}
return list;
}
int
daemon_open_shared_ports(struct daemon* daemon)
{
log_assert(daemon);
if(daemon->cfg->port != daemon->listening_port) {
size_t i;
struct listen_port* p0;
daemon->reuseport = 0;
/* free and close old ports */
if(daemon->ports != NULL) {
for(i=0; i<daemon->num_ports; i++)
listening_ports_free(daemon->ports[i]);
free(daemon->ports);
daemon->ports = NULL;
}
/* see if we want to reuseport */
#ifdef SO_REUSEPORT
if(daemon->cfg->so_reuseport && daemon->cfg->num_threads > 0)
daemon->reuseport = 1;
#endif
/* try to use reuseport */
p0 = listening_ports_open(daemon->cfg, &daemon->reuseport);
if(!p0) {
listening_ports_free(p0);
return 0;
}
if(daemon->reuseport) {
/* reuseport was successful, allocate for it */
daemon->num_ports = (size_t)daemon->cfg->num_threads;
} else {
/* do the normal, singleportslist thing,
* reuseport not enabled or did not work */
daemon->num_ports = 1;
}
if(!(daemon->ports = (struct listen_port**)calloc(
daemon->num_ports, sizeof(*daemon->ports)))) {
listening_ports_free(p0);
return 0;
}
daemon->ports[0] = p0;
if(daemon->reuseport) {
/* continue to use reuseport */
for(i=1; i<daemon->num_ports; i++) {
if(!(daemon->ports[i]=
listening_ports_open(daemon->cfg,
&daemon->reuseport))
|| !daemon->reuseport ) {
for(i=0; i<daemon->num_ports; i++)
listening_ports_free(daemon->ports[i]);
free(daemon->ports);
daemon->ports = NULL;
return 0;
}
}
}
daemon->listening_port = daemon->cfg->port;
}
if(!daemon->cfg->remote_control_enable && daemon->rc_port) {
listening_ports_free(daemon->rc_ports);
daemon->rc_ports = NULL;
daemon->rc_port = 0;
}
if(daemon->cfg->remote_control_enable &&
daemon->cfg->control_port != daemon->rc_port) {
listening_ports_free(daemon->rc_ports);
if(!(daemon->rc_ports=daemon_remote_open_ports(daemon->cfg)))
return 0;
daemon->rc_port = daemon->cfg->control_port;
}
return 1;
}
