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; }