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authoranonimal <anonimal@i2pmail.org>2017-06-28 21:07:24 +0000
committeranonimal <anonimal@i2pmail.org>2018-03-18 15:52:19 +0000
commit84c5a9ba481d7a33cc0fd0ca43867b61d127d907 (patch)
treef05d3d3f107da02005b4a61f0e5074c113a7165c /external/unbound/daemon/remote.c
parentMerge pull request #3416 (diff)
downloadmonero-84c5a9ba481d7a33cc0fd0ca43867b61d127d907.tar.xz
Unbound: remove unbound from in-tree source
We'll instead use a git submodule to pull from our unbound repo.
Diffstat (limited to 'external/unbound/daemon/remote.c')
-rw-r--r--external/unbound/daemon/remote.c3050
1 files changed, 0 insertions, 3050 deletions
diff --git a/external/unbound/daemon/remote.c b/external/unbound/daemon/remote.c
deleted file mode 100644
index c15967c20..000000000
--- a/external/unbound/daemon/remote.c
+++ /dev/null
@@ -1,3050 +0,0 @@
-/*
- * daemon/remote.c - remote control for the unbound daemon.
- *
- * Copyright (c) 2008, NLnet Labs. All rights reserved.
- *
- * This software is open source.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * Neither the name of the NLNET LABS nor the names of its contributors may
- * be used to endorse or promote products derived from this software without
- * specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
- * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
- * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/**
- * \file
- *
- * This file contains the remote control functionality for the daemon.
- * The remote control can be performed using either the commandline
- * unbound-control tool, or a TLS capable web browser.
- * The channel is secured using TLSv1, and certificates.
- * Both the server and the client(control tool) have their own keys.
- */
-#include "config.h"
-#ifdef HAVE_OPENSSL_ERR_H
-#include <openssl/err.h>
-#endif
-#ifdef HAVE_OPENSSL_DH_H
-#include <openssl/dh.h>
-#endif
-#ifdef HAVE_OPENSSL_BN_H
-#include <openssl/bn.h>
-#endif
-
-#include <ctype.h>
-#include "daemon/remote.h"
-#include "daemon/worker.h"
-#include "daemon/daemon.h"
-#include "daemon/stats.h"
-#include "daemon/cachedump.h"
-#include "util/log.h"
-#include "util/config_file.h"
-#include "util/net_help.h"
-#include "util/module.h"
-#include "services/listen_dnsport.h"
-#include "services/cache/rrset.h"
-#include "services/cache/infra.h"
-#include "services/mesh.h"
-#include "services/localzone.h"
-#include "util/storage/slabhash.h"
-#include "util/fptr_wlist.h"
-#include "util/data/dname.h"
-#include "validator/validator.h"
-#include "validator/val_kcache.h"
-#include "validator/val_kentry.h"
-#include "validator/val_anchor.h"
-#include "iterator/iterator.h"
-#include "iterator/iter_fwd.h"
-#include "iterator/iter_hints.h"
-#include "iterator/iter_delegpt.h"
-#include "services/outbound_list.h"
-#include "services/outside_network.h"
-#include "sldns/str2wire.h"
-#include "sldns/parseutil.h"
-#include "sldns/wire2str.h"
-#include "sldns/sbuffer.h"
-
-#ifdef HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-#ifdef HAVE_NETDB_H
-#include <netdb.h>
-#endif
-
-/* just for portability */
-#ifdef SQ
-#undef SQ
-#endif
-
-/** what to put on statistics lines between var and value, ": " or "=" */
-#define SQ "="
-/** if true, inhibits a lot of =0 lines from the stats output */
-static const int inhibit_zero = 1;
-
-/** subtract timers and the values do not overflow or become negative */
-static void
-timeval_subtract(struct timeval* d, const struct timeval* end,
- const struct timeval* start)
-{
-#ifndef S_SPLINT_S
- time_t end_usec = end->tv_usec;
- d->tv_sec = end->tv_sec - start->tv_sec;
- if(end_usec < start->tv_usec) {
- end_usec += 1000000;
- d->tv_sec--;
- }
- d->tv_usec = end_usec - start->tv_usec;
-#endif
-}
-
-/** divide sum of timers to get average */
-static void
-timeval_divide(struct timeval* avg, const struct timeval* sum, size_t d)
-{
-#ifndef S_SPLINT_S
- size_t leftover;
- if(d == 0) {
- avg->tv_sec = 0;
- avg->tv_usec = 0;
- return;
- }
- avg->tv_sec = sum->tv_sec / d;
- avg->tv_usec = sum->tv_usec / d;
- /* handle fraction from seconds divide */
- leftover = sum->tv_sec - avg->tv_sec*d;
- avg->tv_usec += (leftover*1000000)/d;
-#endif
-}
-
-/*
- * The following function was generated using the openssl utility, using
- * the command : "openssl dhparam -C 2048"
- * (some openssl versions reject DH that is 'too small', eg. 512).
- */
-#if OPENSSL_VERSION_NUMBER < 0x10100000 || defined(HAVE_LIBRESSL)
-#ifndef S_SPLINT_S
-static DH *get_dh2048(void)
-{
- static unsigned char dh2048_p[]={
- 0xE7,0x36,0x28,0x3B,0xE4,0xC3,0x32,0x1C,0x01,0xC3,0x67,0xD6,
- 0xF5,0xF3,0xDA,0xDC,0x71,0xC0,0x42,0x8B,0xE6,0xEB,0x8D,0x80,
- 0x35,0x7F,0x09,0x45,0x30,0xE5,0xB2,0x92,0x81,0x3F,0x08,0xCD,
- 0x36,0x5E,0x19,0x83,0x62,0xCC,0xAE,0x9B,0x81,0x66,0x24,0xEE,
- 0x16,0x6F,0xA9,0x9E,0xF4,0x82,0x1B,0xDD,0x46,0xC7,0x33,0x5D,
- 0xF4,0xCA,0xE6,0x8F,0xFC,0xD4,0xD8,0x58,0x94,0x24,0x5D,0xFF,
- 0x0A,0xE8,0xEF,0x3D,0xCE,0xBB,0x50,0x94,0xE0,0x5F,0xE8,0x41,
- 0xC3,0x35,0x30,0x37,0xD5,0xCB,0x8F,0x3D,0x95,0x15,0x1A,0x77,
- 0x42,0xB2,0x06,0x86,0xF6,0x09,0x66,0x0E,0x9A,0x25,0x94,0x3E,
- 0xD2,0x04,0x25,0x25,0x1D,0x23,0xEB,0xDC,0x4D,0x0C,0x83,0x28,
- 0x2E,0x15,0x81,0x2D,0xC1,0xAF,0x8D,0x36,0x64,0xE3,0x9A,0x83,
- 0x78,0xC2,0x8D,0xC0,0x9D,0xD9,0x3A,0x1C,0xC5,0x2B,0x50,0x68,
- 0x07,0xA9,0x4B,0x8C,0x07,0x57,0xD6,0x15,0x03,0x4E,0x9E,0x01,
- 0xF2,0x6F,0x35,0xAC,0x26,0x9C,0x92,0x68,0x61,0x13,0xFB,0x01,
- 0xBA,0x22,0x36,0x01,0x55,0xB6,0x62,0xD9,0xB2,0x98,0xCE,0x5D,
- 0x4B,0xA5,0x41,0xD6,0xE5,0x70,0x78,0x12,0x1F,0x64,0xB6,0x6F,
- 0xB0,0x91,0x51,0x91,0x92,0xC0,0x94,0x3A,0xD1,0x28,0x4D,0x30,
- 0x84,0x3E,0xE4,0xE4,0x7F,0x47,0x89,0xB1,0xB6,0x8C,0x8E,0x0E,
- 0x26,0xDB,0xCD,0x17,0x07,0x2A,0x21,0x7A,0xCC,0x68,0xE8,0x57,
- 0x94,0x9E,0x59,0x61,0xEC,0x20,0x34,0x26,0x0D,0x66,0x44,0xEB,
- 0x6F,0x02,0x58,0xE2,0xED,0xF6,0xF3,0x1B,0xBF,0x9E,0x45,0x52,
- 0x5A,0x49,0xA1,0x5B,
- };
- static unsigned char dh2048_g[]={
- 0x02,
- };
- DH *dh = NULL;
- BIGNUM *p = NULL, *g = NULL;
-
- dh = DH_new();
- p = BN_bin2bn(dh2048_p, sizeof(dh2048_p), NULL);
- g = BN_bin2bn(dh2048_g, sizeof(dh2048_g), NULL);
- if (!dh || !p || !g)
- goto err;
-
-#if OPENSSL_VERSION_NUMBER < 0x10100000 || defined(HAVE_LIBRESSL)
- dh->p = p;
- dh->g = g;
-#else
- if (!DH_set0_pqg(dh, p, NULL, g))
- goto err;
-#endif
- return dh;
-err:
- if (p)
- BN_free(p);
- if (g)
- BN_free(g);
- if (dh)
- DH_free(dh);
- return NULL;
-}
-#endif /* SPLINT */
-#endif /* OPENSSL_VERSION_NUMBER < 0x10100000 */
-
-struct daemon_remote*
-daemon_remote_create(struct config_file* cfg)
-{
- char* s_cert;
- char* s_key;
- struct daemon_remote* rc = (struct daemon_remote*)calloc(1,
- sizeof(*rc));
- if(!rc) {
- log_err("out of memory in daemon_remote_create");
- return NULL;
- }
- rc->max_active = 10;
-
- if(!cfg->remote_control_enable) {
- rc->ctx = NULL;
- return rc;
- }
- rc->ctx = SSL_CTX_new(SSLv23_server_method());
- if(!rc->ctx) {
- log_crypto_err("could not SSL_CTX_new");
- free(rc);
- return NULL;
- }
- /* no SSLv2, SSLv3 because has defects */
- if((SSL_CTX_set_options(rc->ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)
- != SSL_OP_NO_SSLv2){
- log_crypto_err("could not set SSL_OP_NO_SSLv2");
- daemon_remote_delete(rc);
- return NULL;
- }
- if((SSL_CTX_set_options(rc->ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)
- != SSL_OP_NO_SSLv3){
- log_crypto_err("could not set SSL_OP_NO_SSLv3");
- daemon_remote_delete(rc);
- return NULL;
- }
-#if defined(SSL_OP_NO_TLSv1) && defined(SSL_OP_NO_TLSv1_1)
- /* if we have tls 1.1 disable 1.0 */
- if((SSL_CTX_set_options(rc->ctx, SSL_OP_NO_TLSv1) & SSL_OP_NO_TLSv1)
- != SSL_OP_NO_TLSv1){
- log_crypto_err("could not set SSL_OP_NO_TLSv1");
- daemon_remote_delete(rc);
- return NULL;
- }
-#endif
-#if defined(SSL_OP_NO_TLSv1_1) && defined(SSL_OP_NO_TLSv1_2)
- /* if we have tls 1.2 disable 1.1 */
- if((SSL_CTX_set_options(rc->ctx, SSL_OP_NO_TLSv1_1) & SSL_OP_NO_TLSv1_1)
- != SSL_OP_NO_TLSv1_1){
- log_crypto_err("could not set SSL_OP_NO_TLSv1_1");
- daemon_remote_delete(rc);
- return NULL;
- }
-#endif
-#ifdef SHA256_DIGEST_LENGTH
- /* if we have sha256, set the cipher list to have no known vulns */
- if(!SSL_CTX_set_cipher_list(rc->ctx, "ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256"))
- log_crypto_err("coult not set cipher list with SSL_CTX_set_cipher_list");
-#endif
-
- if (cfg->remote_control_use_cert == 0) {
- /* No certificates are requested */
-#ifdef HAVE_SSL_CTX_SET_SECURITY_LEVEL
- SSL_CTX_set_security_level(rc->ctx, 0);
-#endif
- if(!SSL_CTX_set_cipher_list(rc->ctx, "aNULL, eNULL")) {
- log_crypto_err("Failed to set aNULL cipher list");
- daemon_remote_delete(rc);
- return NULL;
- }
-
- /* in openssl 1.1, the securitylevel 0 allows eNULL, that
- * does not need the DH */
-#if OPENSSL_VERSION_NUMBER < 0x10100000 || defined(HAVE_LIBRESSL)
- /* Since we have no certificates and hence no source of
- * DH params, let's generate and set them
- */
- if(!SSL_CTX_set_tmp_dh(rc->ctx,get_dh2048())) {
- log_crypto_err("Wanted to set DH param, but failed");
- daemon_remote_delete(rc);
- return NULL;
- }
-#endif
- return rc;
- }
- rc->use_cert = 1;
- s_cert = fname_after_chroot(cfg->server_cert_file, cfg, 1);
- s_key = fname_after_chroot(cfg->server_key_file, cfg, 1);
- if(!s_cert || !s_key) {
- log_err("out of memory in remote control fname");
- goto setup_error;
- }
- verbose(VERB_ALGO, "setup SSL certificates");
- if (!SSL_CTX_use_certificate_chain_file(rc->ctx,s_cert)) {
- log_err("Error for server-cert-file: %s", s_cert);
- log_crypto_err("Error in SSL_CTX use_certificate_chain_file");
- goto setup_error;
- }
- if(!SSL_CTX_use_PrivateKey_file(rc->ctx,s_key,SSL_FILETYPE_PEM)) {
- log_err("Error for server-key-file: %s", s_key);
- log_crypto_err("Error in SSL_CTX use_PrivateKey_file");
- goto setup_error;
- }
- if(!SSL_CTX_check_private_key(rc->ctx)) {
- log_err("Error for server-key-file: %s", s_key);
- log_crypto_err("Error in SSL_CTX check_private_key");
- goto setup_error;
- }
-#if HAVE_DECL_SSL_CTX_SET_ECDH_AUTO
- if(!SSL_CTX_set_ecdh_auto(rc->ctx,1)) {
- log_crypto_err("Error in SSL_CTX_ecdh_auto, not enabling ECDHE");
- }
-#elif defined(USE_ECDSA)
- if(1) {
- EC_KEY *ecdh = EC_KEY_new_by_curve_name (NID_X9_62_prime256v1);
- if (!ecdh) {
- log_crypto_err("could not find p256, not enabling ECDHE");
- } else {
- if (1 != SSL_CTX_set_tmp_ecdh (rc->ctx, ecdh)) {
- log_crypto_err("Error in SSL_CTX_set_tmp_ecdh, not enabling ECDHE");
- }
- EC_KEY_free (ecdh);
- }
- }
-#endif
- if(!SSL_CTX_load_verify_locations(rc->ctx, s_cert, NULL)) {
- log_crypto_err("Error setting up SSL_CTX verify locations");
- setup_error:
- free(s_cert);
- free(s_key);
- daemon_remote_delete(rc);
- return NULL;
- }
- SSL_CTX_set_client_CA_list(rc->ctx, SSL_load_client_CA_file(s_cert));
- SSL_CTX_set_verify(rc->ctx, SSL_VERIFY_PEER, NULL);
- free(s_cert);
- free(s_key);
-
- return rc;
-}
-
-void daemon_remote_clear(struct daemon_remote* rc)
-{
- struct rc_state* p, *np;
- if(!rc) return;
- /* but do not close the ports */
- listen_list_delete(rc->accept_list);
- rc->accept_list = NULL;
- /* do close these sockets */
- p = rc->busy_list;
- while(p) {
- np = p->next;
- if(p->ssl)
- SSL_free(p->ssl);
- comm_point_delete(p->c);
- free(p);
- p = np;
- }
- rc->busy_list = NULL;
- rc->active = 0;
- rc->worker = NULL;
-}
-
-void daemon_remote_delete(struct daemon_remote* rc)
-{
- if(!rc) return;
- daemon_remote_clear(rc);
- if(rc->ctx) {
- SSL_CTX_free(rc->ctx);
- }
- free(rc);
-}
-
-/**
- * Add and open a new control port
- * @param ip: ip str
- * @param nr: port nr
- * @param list: list head
- * @param noproto_is_err: if lack of protocol support is an error.
- * @param cfg: config with username for chown of unix-sockets.
- * @return false on failure.
- */
-static int
-add_open(const char* ip, int nr, struct listen_port** list, int noproto_is_err,
- struct config_file* cfg)
-{
- struct addrinfo hints;
- struct addrinfo* res;
- struct listen_port* n;
- int noproto;
- int fd, r;
- char port[15];
- snprintf(port, sizeof(port), "%d", nr);
- port[sizeof(port)-1]=0;
- memset(&hints, 0, sizeof(hints));
-
- if(ip[0] == '/') {
- /* This looks like a local socket */
- fd = create_local_accept_sock(ip, &noproto, cfg->use_systemd);
- /*
- * Change socket ownership and permissions so users other
- * than root can access it provided they are in the same
- * group as the user we run as.
- */
- if(fd != -1) {
-#ifdef HAVE_CHOWN
- if (cfg->username && cfg->username[0] &&
- cfg_uid != (uid_t)-1) {
- if(chown(ip, cfg_uid, cfg_gid) == -1)
- log_err("cannot chown %u.%u %s: %s",
- (unsigned)cfg_uid, (unsigned)cfg_gid,
- ip, strerror(errno));
- }
- chmod(ip, (mode_t)(S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP));
-#else
- (void)cfg;
-#endif
- }
- } else {
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_flags = AI_PASSIVE | AI_NUMERICHOST;
- if((r = getaddrinfo(ip, port, &hints, &res)) != 0 || !res) {
-#ifdef USE_WINSOCK
- if(!noproto_is_err && r == EAI_NONAME) {
- /* tried to lookup the address as name */
- return 1; /* return success, but do nothing */
- }
-#endif /* USE_WINSOCK */
- log_err("control interface %s:%s getaddrinfo: %s %s",
- ip?ip:"default", port, gai_strerror(r),
-#ifdef EAI_SYSTEM
- r==EAI_SYSTEM?(char*)strerror(errno):""
-#else
- ""
-#endif
- );
- return 0;
- }
-
- /* open fd */
- fd = create_tcp_accept_sock(res, 1, &noproto, 0,
- cfg->ip_transparent, 0, cfg->ip_freebind, cfg->use_systemd);
- freeaddrinfo(res);
- }
-
- if(fd == -1 && noproto) {
- if(!noproto_is_err)
- return 1; /* return success, but do nothing */
- log_err("cannot open control interface %s %d : "
- "protocol not supported", ip, nr);
- return 0;
- }
- if(fd == -1) {
- log_err("cannot open control interface %s %d", ip, nr);
- return 0;
- }
-
- /* alloc */
- n = (struct listen_port*)calloc(1, sizeof(*n));
- if(!n) {
-#ifndef USE_WINSOCK
- close(fd);
-#else
- closesocket(fd);
-#endif
- log_err("out of memory");
- return 0;
- }
- n->next = *list;
- *list = n;
- n->fd = fd;
- return 1;
-}
-
-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, cfg)) {
- listening_ports_free(l);
- return NULL;
- }
- }
- } else {
- /* defaults */
- if(cfg->do_ip6 &&
- !add_open("::1", cfg->control_port, &l, 0, cfg)) {
- listening_ports_free(l);
- return NULL;
- }
- if(cfg->do_ip4 &&
- !add_open("127.0.0.1", cfg->control_port, &l, 1, cfg)) {
- listening_ports_free(l);
- return NULL;
- }
- }
- return l;
-}
-
-/** open accept commpoint */
-static int
-accept_open(struct daemon_remote* rc, int fd)
-{
- struct listen_list* n = (struct listen_list*)malloc(sizeof(*n));
- if(!n) {
- log_err("out of memory");
- return 0;
- }
- n->next = rc->accept_list;
- rc->accept_list = n;
- /* open commpt */
- n->com = comm_point_create_raw(rc->worker->base, fd, 0,
- &remote_accept_callback, rc);
- if(!n->com)
- return 0;
- /* keep this port open, its fd is kept in the rc portlist */
- n->com->do_not_close = 1;
- return 1;
-}
-
-int daemon_remote_open_accept(struct daemon_remote* rc,
- struct listen_port* ports, struct worker* worker)
-{
- struct listen_port* p;
- rc->worker = worker;
- for(p = ports; p; p = p->next) {
- if(!accept_open(rc, p->fd)) {
- log_err("could not create accept comm point");
- return 0;
- }
- }
- return 1;
-}
-
-void daemon_remote_stop_accept(struct daemon_remote* rc)
-{
- struct listen_list* p;
- for(p=rc->accept_list; p; p=p->next) {
- comm_point_stop_listening(p->com);
- }
-}
-
-void daemon_remote_start_accept(struct daemon_remote* rc)
-{
- struct listen_list* p;
- for(p=rc->accept_list; p; p=p->next) {
- comm_point_start_listening(p->com, -1, -1);
- }
-}
-
-int remote_accept_callback(struct comm_point* c, void* arg, int err,
- struct comm_reply* ATTR_UNUSED(rep))
-{
- struct daemon_remote* rc = (struct daemon_remote*)arg;
- struct sockaddr_storage addr;
- socklen_t addrlen;
- int newfd;
- struct rc_state* n;
- if(err != NETEVENT_NOERROR) {
- log_err("error %d on remote_accept_callback", err);
- return 0;
- }
- /* perform the accept */
- newfd = comm_point_perform_accept(c, &addr, &addrlen);
- if(newfd == -1)
- return 0;
- /* create new commpoint unless we are servicing already */
- if(rc->active >= rc->max_active) {
- log_warn("drop incoming remote control: too many connections");
- close_exit:
-#ifndef USE_WINSOCK
- close(newfd);
-#else
- closesocket(newfd);
-#endif
- return 0;
- }
-
- /* setup commpoint to service the remote control command */
- n = (struct rc_state*)calloc(1, sizeof(*n));
- if(!n) {
- log_err("out of memory");
- goto close_exit;
- }
- /* start in reading state */
- n->c = comm_point_create_raw(rc->worker->base, newfd, 0,
- &remote_control_callback, n);
- if(!n->c) {
- log_err("out of memory");
- free(n);
- goto close_exit;
- }
- log_addr(VERB_QUERY, "new control connection from", &addr, addrlen);
- n->c->do_not_close = 0;
- comm_point_stop_listening(n->c);
- comm_point_start_listening(n->c, -1, REMOTE_CONTROL_TCP_TIMEOUT);
- memcpy(&n->c->repinfo.addr, &addr, addrlen);
- n->c->repinfo.addrlen = addrlen;
- n->shake_state = rc_hs_read;
- n->ssl = SSL_new(rc->ctx);
- if(!n->ssl) {
- log_crypto_err("could not SSL_new");
- comm_point_delete(n->c);
- free(n);
- goto close_exit;
- }
- SSL_set_accept_state(n->ssl);
- (void)SSL_set_mode(n->ssl, SSL_MODE_AUTO_RETRY);
- if(!SSL_set_fd(n->ssl, newfd)) {
- log_crypto_err("could not SSL_set_fd");
- SSL_free(n->ssl);
- comm_point_delete(n->c);
- free(n);
- goto close_exit;
- }
-
- n->rc = rc;
- n->next = rc->busy_list;
- rc->busy_list = n;
- rc->active ++;
-
- /* perform the first nonblocking read already, for windows,
- * so it can return wouldblock. could be faster too. */
- (void)remote_control_callback(n->c, n, NETEVENT_NOERROR, NULL);
- return 0;
-}
-
-/** delete from list */
-static void
-state_list_remove_elem(struct rc_state** list, struct comm_point* c)
-{
- while(*list) {
- if( (*list)->c == c) {
- *list = (*list)->next;
- return;
- }
- list = &(*list)->next;
- }
-}
-
-/** decrease active count and remove commpoint from busy list */
-static void
-clean_point(struct daemon_remote* rc, struct rc_state* s)
-{
- state_list_remove_elem(&rc->busy_list, s->c);
- rc->active --;
- if(s->ssl) {
- SSL_shutdown(s->ssl);
- SSL_free(s->ssl);
- }
- comm_point_delete(s->c);
- free(s);
-}
-
-int
-ssl_print_text(SSL* ssl, const char* text)
-{
- int r;
- if(!ssl)
- return 0;
- ERR_clear_error();
- if((r=SSL_write(ssl, text, (int)strlen(text))) <= 0) {
- if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) {
- verbose(VERB_QUERY, "warning, in SSL_write, peer "
- "closed connection");
- return 0;
- }
- log_crypto_err("could not SSL_write");
- return 0;
- }
- return 1;
-}
-
-/** print text over the ssl connection */
-static int
-ssl_print_vmsg(SSL* ssl, const char* format, va_list args)
-{
- char msg[1024];
- vsnprintf(msg, sizeof(msg), format, args);
- return ssl_print_text(ssl, msg);
-}
-
-/** printf style printing to the ssl connection */
-int ssl_printf(SSL* ssl, const char* format, ...)
-{
- va_list args;
- int ret;
- va_start(args, format);
- ret = ssl_print_vmsg(ssl, format, args);
- va_end(args);
- return ret;
-}
-
-int
-ssl_read_line(SSL* ssl, char* buf, size_t max)
-{
- int r;
- size_t len = 0;
- if(!ssl)
- return 0;
- while(len < max) {
- ERR_clear_error();
- if((r=SSL_read(ssl, buf+len, 1)) <= 0) {
- if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) {
- buf[len] = 0;
- return 1;
- }
- log_crypto_err("could not SSL_read");
- return 0;
- }
- if(buf[len] == '\n') {
- /* return string without \n */
- buf[len] = 0;
- return 1;
- }
- len++;
- }
- buf[max-1] = 0;
- log_err("control line too long (%d): %s", (int)max, buf);
- return 0;
-}
-
-/** skip whitespace, return new pointer into string */
-static char*
-skipwhite(char* str)
-{
- /* EOS \0 is not a space */
- while( isspace((unsigned char)*str) )
- str++;
- return str;
-}
-
-/** send the OK to the control client */
-static void send_ok(SSL* ssl)
-{
- (void)ssl_printf(ssl, "ok\n");
-}
-
-/** do the stop command */
-static void
-do_stop(SSL* ssl, struct daemon_remote* rc)
-{
- rc->worker->need_to_exit = 1;
- comm_base_exit(rc->worker->base);
- send_ok(ssl);
-}
-
-/** do the reload command */
-static void
-do_reload(SSL* ssl, struct daemon_remote* rc)
-{
- rc->worker->need_to_exit = 0;
- comm_base_exit(rc->worker->base);
- send_ok(ssl);
-}
-
-/** do the verbosity command */
-static void
-do_verbosity(SSL* ssl, char* str)
-{
- int val = atoi(str);
- if(val == 0 && strcmp(str, "0") != 0) {
- ssl_printf(ssl, "error in verbosity number syntax: %s\n", str);
- return;
- }
- verbosity = val;
- send_ok(ssl);
-}
-
-/** print stats from statinfo */
-static int
-print_stats(SSL* ssl, const char* nm, struct stats_info* s)
-{
- struct timeval avg;
- if(!ssl_printf(ssl, "%s.num.queries"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_queries)) return 0;
- if(!ssl_printf(ssl, "%s.num.queries_ip_ratelimited"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_queries_ip_ratelimited)) return 0;
- if(!ssl_printf(ssl, "%s.num.cachehits"SQ"%lu\n", nm,
- (unsigned long)(s->svr.num_queries
- - s->svr.num_queries_missed_cache))) return 0;
- if(!ssl_printf(ssl, "%s.num.cachemiss"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_queries_missed_cache)) return 0;
- if(!ssl_printf(ssl, "%s.num.prefetch"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_queries_prefetch)) return 0;
- if(!ssl_printf(ssl, "%s.num.zero_ttl"SQ"%lu\n", nm,
- (unsigned long)s->svr.zero_ttl_responses)) return 0;
- if(!ssl_printf(ssl, "%s.num.recursivereplies"SQ"%lu\n", nm,
- (unsigned long)s->mesh_replies_sent)) return 0;
-#ifdef USE_DNSCRYPT
- if(!ssl_printf(ssl, "%s.num.dnscrypt.crypted"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_query_dnscrypt_crypted)) return 0;
- if(!ssl_printf(ssl, "%s.num.dnscrypt.cert"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_query_dnscrypt_cert)) return 0;
- if(!ssl_printf(ssl, "%s.num.dnscrypt.cleartext"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_query_dnscrypt_cleartext)) return 0;
- if(!ssl_printf(ssl, "%s.num.dnscrypt.malformed"SQ"%lu\n", nm,
- (unsigned long)s->svr.num_query_dnscrypt_crypted_malformed)) return 0;
-#endif
- if(!ssl_printf(ssl, "%s.requestlist.avg"SQ"%g\n", nm,
- (s->svr.num_queries_missed_cache+s->svr.num_queries_prefetch)?
- (double)s->svr.sum_query_list_size/
- (s->svr.num_queries_missed_cache+
- s->svr.num_queries_prefetch) : 0.0)) return 0;
- if(!ssl_printf(ssl, "%s.requestlist.max"SQ"%lu\n", nm,
- (unsigned long)s->svr.max_query_list_size)) return 0;
- if(!ssl_printf(ssl, "%s.requestlist.overwritten"SQ"%lu\n", nm,
- (unsigned long)s->mesh_jostled)) return 0;
- if(!ssl_printf(ssl, "%s.requestlist.exceeded"SQ"%lu\n", nm,
- (unsigned long)s->mesh_dropped)) return 0;
- if(!ssl_printf(ssl, "%s.requestlist.current.all"SQ"%lu\n", nm,
- (unsigned long)s->mesh_num_states)) return 0;
- if(!ssl_printf(ssl, "%s.requestlist.current.user"SQ"%lu\n", nm,
- (unsigned long)s->mesh_num_reply_states)) return 0;
- timeval_divide(&avg, &s->mesh_replies_sum_wait, s->mesh_replies_sent);
- if(!ssl_printf(ssl, "%s.recursion.time.avg"SQ ARG_LL "d.%6.6d\n", nm,
- (long long)avg.tv_sec, (int)avg.tv_usec)) return 0;
- if(!ssl_printf(ssl, "%s.recursion.time.median"SQ"%g\n", nm,
- s->mesh_time_median)) return 0;
- if(!ssl_printf(ssl, "%s.tcpusage"SQ"%lu\n", nm,
- (unsigned long)s->svr.tcp_accept_usage)) return 0;
- return 1;
-}
-
-/** print stats for one thread */
-static int
-print_thread_stats(SSL* ssl, int i, struct stats_info* s)
-{
- char nm[16];
- snprintf(nm, sizeof(nm), "thread%d", i);
- nm[sizeof(nm)-1]=0;
- return print_stats(ssl, nm, s);
-}
-
-/** print long number */
-static int
-print_longnum(SSL* ssl, const char* desc, size_t x)
-{
- if(x > 1024*1024*1024) {
- /* more than a Gb */
- size_t front = x / (size_t)1000000;
- size_t back = x % (size_t)1000000;
- return ssl_printf(ssl, "%s%u%6.6u\n", desc,
- (unsigned)front, (unsigned)back);
- } else {
- return ssl_printf(ssl, "%s%lu\n", desc, (unsigned long)x);
- }
-}
-
-/** print mem stats */
-static int
-print_mem(SSL* ssl, struct worker* worker, struct daemon* daemon)
-{
- int m;
- size_t msg, rrset, val, iter, respip;
-#ifdef CLIENT_SUBNET
- size_t subnet = 0;
-#endif /* CLIENT_SUBNET */
- msg = slabhash_get_mem(daemon->env->msg_cache);
- rrset = slabhash_get_mem(&daemon->env->rrset_cache->table);
- val=0;
- iter=0;
- respip=0;
- m = modstack_find(&worker->env.mesh->mods, "validator");
- if(m != -1) {
- fptr_ok(fptr_whitelist_mod_get_mem(worker->env.mesh->
- mods.mod[m]->get_mem));
- val = (*worker->env.mesh->mods.mod[m]->get_mem)
- (&worker->env, m);
- }
- m = modstack_find(&worker->env.mesh->mods, "iterator");
- if(m != -1) {
- fptr_ok(fptr_whitelist_mod_get_mem(worker->env.mesh->
- mods.mod[m]->get_mem));
- iter = (*worker->env.mesh->mods.mod[m]->get_mem)
- (&worker->env, m);
- }
- m = modstack_find(&worker->env.mesh->mods, "respip");
- if(m != -1) {
- fptr_ok(fptr_whitelist_mod_get_mem(worker->env.mesh->
- mods.mod[m]->get_mem));
- respip = (*worker->env.mesh->mods.mod[m]->get_mem)
- (&worker->env, m);
- }
-#ifdef CLIENT_SUBNET
- m = modstack_find(&worker->env.mesh->mods, "subnet");
- if(m != -1) {
- fptr_ok(fptr_whitelist_mod_get_mem(worker->env.mesh->
- mods.mod[m]->get_mem));
- subnet = (*worker->env.mesh->mods.mod[m]->get_mem)
- (&worker->env, m);
- }
-#endif /* CLIENT_SUBNET */
-
- if(!print_longnum(ssl, "mem.cache.rrset"SQ, rrset))
- return 0;
- if(!print_longnum(ssl, "mem.cache.message"SQ, msg))
- return 0;
- if(!print_longnum(ssl, "mem.mod.iterator"SQ, iter))
- return 0;
- if(!print_longnum(ssl, "mem.mod.validator"SQ, val))
- return 0;
- if(!print_longnum(ssl, "mem.mod.respip"SQ, respip))
- return 0;
-#ifdef CLIENT_SUBNET
- if(!print_longnum(ssl, "mem.mod.subnet"SQ, subnet))
- return 0;
-#endif /* CLIENT_SUBNET */
- return 1;
-}
-
-/** print uptime stats */
-static int
-print_uptime(SSL* ssl, struct worker* worker, int reset)
-{
- struct timeval now = *worker->env.now_tv;
- struct timeval up, dt;
- timeval_subtract(&up, &now, &worker->daemon->time_boot);
- timeval_subtract(&dt, &now, &worker->daemon->time_last_stat);
- if(reset)
- worker->daemon->time_last_stat = now;
- if(!ssl_printf(ssl, "time.now"SQ ARG_LL "d.%6.6d\n",
- (long long)now.tv_sec, (unsigned)now.tv_usec)) return 0;
- if(!ssl_printf(ssl, "time.up"SQ ARG_LL "d.%6.6d\n",
- (long long)up.tv_sec, (unsigned)up.tv_usec)) return 0;
- if(!ssl_printf(ssl, "time.elapsed"SQ ARG_LL "d.%6.6d\n",
- (long long)dt.tv_sec, (unsigned)dt.tv_usec)) return 0;
- return 1;
-}
-
-/** print extended histogram */
-static int
-print_hist(SSL* ssl, struct stats_info* s)
-{
- struct timehist* hist;
- size_t i;
- hist = timehist_setup();
- if(!hist) {
- log_err("out of memory");
- return 0;
- }
- timehist_import(hist, s->svr.hist, NUM_BUCKETS_HIST);
- for(i=0; i<hist->num; i++) {
- if(!ssl_printf(ssl,
- "histogram.%6.6d.%6.6d.to.%6.6d.%6.6d=%lu\n",
- (int)hist->buckets[i].lower.tv_sec,
- (int)hist->buckets[i].lower.tv_usec,
- (int)hist->buckets[i].upper.tv_sec,
- (int)hist->buckets[i].upper.tv_usec,
- (unsigned long)hist->buckets[i].count)) {
- timehist_delete(hist);
- return 0;
- }
- }
- timehist_delete(hist);
- return 1;
-}
-
-/** print extended stats */
-static int
-print_ext(SSL* ssl, struct stats_info* s)
-{
- int i;
- char nm[16];
- const sldns_rr_descriptor* desc;
- const sldns_lookup_table* lt;
- /* TYPE */
- for(i=0; i<STATS_QTYPE_NUM; i++) {
- if(inhibit_zero && s->svr.qtype[i] == 0)
- continue;
- desc = sldns_rr_descript((uint16_t)i);
- if(desc && desc->_name) {
- snprintf(nm, sizeof(nm), "%s", desc->_name);
- } else if (i == LDNS_RR_TYPE_IXFR) {
- snprintf(nm, sizeof(nm), "IXFR");
- } else if (i == LDNS_RR_TYPE_AXFR) {
- snprintf(nm, sizeof(nm), "AXFR");
- } else if (i == LDNS_RR_TYPE_MAILA) {
- snprintf(nm, sizeof(nm), "MAILA");
- } else if (i == LDNS_RR_TYPE_MAILB) {
- snprintf(nm, sizeof(nm), "MAILB");
- } else if (i == LDNS_RR_TYPE_ANY) {
- snprintf(nm, sizeof(nm), "ANY");
- } else {
- snprintf(nm, sizeof(nm), "TYPE%d", i);
- }
- if(!ssl_printf(ssl, "num.query.type.%s"SQ"%lu\n",
- nm, (unsigned long)s->svr.qtype[i])) return 0;
- }
- if(!inhibit_zero || s->svr.qtype_big) {
- if(!ssl_printf(ssl, "num.query.type.other"SQ"%lu\n",
- (unsigned long)s->svr.qtype_big)) return 0;
- }
- /* CLASS */
- for(i=0; i<STATS_QCLASS_NUM; i++) {
- if(inhibit_zero && s->svr.qclass[i] == 0)
- continue;
- lt = sldns_lookup_by_id(sldns_rr_classes, i);
- if(lt && lt->name) {
- snprintf(nm, sizeof(nm), "%s", lt->name);
- } else {
- snprintf(nm, sizeof(nm), "CLASS%d", i);
- }
- if(!ssl_printf(ssl, "num.query.class.%s"SQ"%lu\n",
- nm, (unsigned long)s->svr.qclass[i])) return 0;
- }
- if(!inhibit_zero || s->svr.qclass_big) {
- if(!ssl_printf(ssl, "num.query.class.other"SQ"%lu\n",
- (unsigned long)s->svr.qclass_big)) return 0;
- }
- /* OPCODE */
- for(i=0; i<STATS_OPCODE_NUM; i++) {
- if(inhibit_zero && s->svr.qopcode[i] == 0)
- continue;
- lt = sldns_lookup_by_id(sldns_opcodes, i);
- if(lt && lt->name) {
- snprintf(nm, sizeof(nm), "%s", lt->name);
- } else {
- snprintf(nm, sizeof(nm), "OPCODE%d", i);
- }
- if(!ssl_printf(ssl, "num.query.opcode.%s"SQ"%lu\n",
- nm, (unsigned long)s->svr.qopcode[i])) return 0;
- }
- /* transport */
- if(!ssl_printf(ssl, "num.query.tcp"SQ"%lu\n",
- (unsigned long)s->svr.qtcp)) return 0;
- if(!ssl_printf(ssl, "num.query.tcpout"SQ"%lu\n",
- (unsigned long)s->svr.qtcp_outgoing)) return 0;
- if(!ssl_printf(ssl, "num.query.ipv6"SQ"%lu\n",
- (unsigned long)s->svr.qipv6)) return 0;
- /* flags */
- if(!ssl_printf(ssl, "num.query.flags.QR"SQ"%lu\n",
- (unsigned long)s->svr.qbit_QR)) return 0;
- if(!ssl_printf(ssl, "num.query.flags.AA"SQ"%lu\n",
- (unsigned long)s->svr.qbit_AA)) return 0;
- if(!ssl_printf(ssl, "num.query.flags.TC"SQ"%lu\n",
- (unsigned long)s->svr.qbit_TC)) return 0;
- if(!ssl_printf(ssl, "num.query.flags.RD"SQ"%lu\n",
- (unsigned long)s->svr.qbit_RD)) return 0;
- if(!ssl_printf(ssl, "num.query.flags.RA"SQ"%lu\n",
- (unsigned long)s->svr.qbit_RA)) return 0;
- if(!ssl_printf(ssl, "num.query.flags.Z"SQ"%lu\n",
- (unsigned long)s->svr.qbit_Z)) return 0;
- if(!ssl_printf(ssl, "num.query.flags.AD"SQ"%lu\n",
- (unsigned long)s->svr.qbit_AD)) return 0;
- if(!ssl_printf(ssl, "num.query.flags.CD"SQ"%lu\n",
- (unsigned long)s->svr.qbit_CD)) return 0;
- if(!ssl_printf(ssl, "num.query.edns.present"SQ"%lu\n",
- (unsigned long)s->svr.qEDNS)) return 0;
- if(!ssl_printf(ssl, "num.query.edns.DO"SQ"%lu\n",
- (unsigned long)s->svr.qEDNS_DO)) return 0;
-
- /* RCODE */
- for(i=0; i<STATS_RCODE_NUM; i++) {
- /* Always include RCODEs 0-5 */
- if(inhibit_zero && i > LDNS_RCODE_REFUSED && s->svr.ans_rcode[i] == 0)
- continue;
- lt = sldns_lookup_by_id(sldns_rcodes, i);
- if(lt && lt->name) {
- snprintf(nm, sizeof(nm), "%s", lt->name);
- } else {
- snprintf(nm, sizeof(nm), "RCODE%d", i);
- }
- if(!ssl_printf(ssl, "num.answer.rcode.%s"SQ"%lu\n",
- nm, (unsigned long)s->svr.ans_rcode[i])) return 0;
- }
- if(!inhibit_zero || s->svr.ans_rcode_nodata) {
- if(!ssl_printf(ssl, "num.answer.rcode.nodata"SQ"%lu\n",
- (unsigned long)s->svr.ans_rcode_nodata)) return 0;
- }
- /* validation */
- if(!ssl_printf(ssl, "num.answer.secure"SQ"%lu\n",
- (unsigned long)s->svr.ans_secure)) return 0;
- if(!ssl_printf(ssl, "num.answer.bogus"SQ"%lu\n",
- (unsigned long)s->svr.ans_bogus)) return 0;
- if(!ssl_printf(ssl, "num.rrset.bogus"SQ"%lu\n",
- (unsigned long)s->svr.rrset_bogus)) return 0;
- /* threat detection */
- if(!ssl_printf(ssl, "unwanted.queries"SQ"%lu\n",
- (unsigned long)s->svr.unwanted_queries)) return 0;
- if(!ssl_printf(ssl, "unwanted.replies"SQ"%lu\n",
- (unsigned long)s->svr.unwanted_replies)) return 0;
- /* cache counts */
- if(!ssl_printf(ssl, "msg.cache.count"SQ"%u\n",
- (unsigned)s->svr.msg_cache_count)) return 0;
- if(!ssl_printf(ssl, "rrset.cache.count"SQ"%u\n",
- (unsigned)s->svr.rrset_cache_count)) return 0;
- if(!ssl_printf(ssl, "infra.cache.count"SQ"%u\n",
- (unsigned)s->svr.infra_cache_count)) return 0;
- if(!ssl_printf(ssl, "key.cache.count"SQ"%u\n",
- (unsigned)s->svr.key_cache_count)) return 0;
- return 1;
-}
-
-/** do the stats command */
-static void
-do_stats(SSL* ssl, struct daemon_remote* rc, int reset)
-{
- struct daemon* daemon = rc->worker->daemon;
- struct stats_info total;
- struct stats_info s;
- int i;
- log_assert(daemon->num > 0);
- /* gather all thread statistics in one place */
- for(i=0; i<daemon->num; i++) {
- server_stats_obtain(rc->worker, daemon->workers[i], &s, reset);
- if(!print_thread_stats(ssl, i, &s))
- return;
- if(i == 0)
- total = s;
- else server_stats_add(&total, &s);
- }
- /* print the thread statistics */
- total.mesh_time_median /= (double)daemon->num;
- if(!print_stats(ssl, "total", &total))
- return;
- if(!print_uptime(ssl, rc->worker, reset))
- return;
- if(daemon->cfg->stat_extended) {
- if(!print_mem(ssl, rc->worker, daemon))
- return;
- if(!print_hist(ssl, &total))
- return;
- if(!print_ext(ssl, &total))
- return;
- }
-}
-
-/** parse commandline argument domain name */
-static int
-parse_arg_name(SSL* ssl, char* str, uint8_t** res, size_t* len, int* labs)
-{
- uint8_t nm[LDNS_MAX_DOMAINLEN+1];
- size_t nmlen = sizeof(nm);
- int status;
- *res = NULL;
- *len = 0;
- *labs = 0;
- status = sldns_str2wire_dname_buf(str, nm, &nmlen);
- if(status != 0) {
- ssl_printf(ssl, "error cannot parse name %s at %d: %s\n", str,
- LDNS_WIREPARSE_OFFSET(status),
- sldns_get_errorstr_parse(status));
- return 0;
- }
- *res = memdup(nm, nmlen);
- if(!*res) {
- ssl_printf(ssl, "error out of memory\n");
- return 0;
- }
- *labs = dname_count_size_labels(*res, len);
- return 1;
-}
-
-/** find second argument, modifies string */
-static int
-find_arg2(SSL* ssl, char* arg, char** arg2)
-{
- char* as = strchr(arg, ' ');
- char* at = strchr(arg, '\t');
- if(as && at) {
- if(at < as)
- as = at;
- as[0]=0;
- *arg2 = skipwhite(as+1);
- } else if(as) {
- as[0]=0;
- *arg2 = skipwhite(as+1);
- } else if(at) {
- at[0]=0;
- *arg2 = skipwhite(at+1);
- } else {
- ssl_printf(ssl, "error could not find next argument "
- "after %s\n", arg);
- return 0;
- }
- return 1;
-}
-
-/** Add a new zone */
-static int
-perform_zone_add(SSL* ssl, struct local_zones* zones, char* arg)
-{
- uint8_t* nm;
- int nmlabs;
- size_t nmlen;
- char* arg2;
- enum localzone_type t;
- struct local_zone* z;
- if(!find_arg2(ssl, arg, &arg2))
- return 0;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return 0;
- if(!local_zone_str2type(arg2, &t)) {
- ssl_printf(ssl, "error not a zone type. %s\n", arg2);
- free(nm);
- return 0;
- }
- lock_rw_wrlock(&zones->lock);
- if((z=local_zones_find(zones, nm, nmlen,
- nmlabs, LDNS_RR_CLASS_IN))) {
- /* already present in tree */
- lock_rw_wrlock(&z->lock);
- z->type = t; /* update type anyway */
- lock_rw_unlock(&z->lock);
- free(nm);
- lock_rw_unlock(&zones->lock);
- return 1;
- }
- if(!local_zones_add_zone(zones, nm, nmlen,
- nmlabs, LDNS_RR_CLASS_IN, t)) {
- lock_rw_unlock(&zones->lock);
- ssl_printf(ssl, "error out of memory\n");
- return 0;
- }
- lock_rw_unlock(&zones->lock);
- return 1;
-}
-
-/** Do the local_zone command */
-static void
-do_zone_add(SSL* ssl, struct local_zones* zones, char* arg)
-{
- if(!perform_zone_add(ssl, zones, arg))
- return;
- send_ok(ssl);
-}
-
-/** Do the local_zones command */
-static void
-do_zones_add(SSL* ssl, struct local_zones* zones)
-{
- char buf[2048];
- int num = 0;
- while(ssl_read_line(ssl, buf, sizeof(buf))) {
- if(buf[0] == 0x04 && buf[1] == 0)
- break; /* end of transmission */
- if(!perform_zone_add(ssl, zones, buf)) {
- if(!ssl_printf(ssl, "error for input line: %s\n", buf))
- return;
- }
- else
- num++;
- }
- (void)ssl_printf(ssl, "added %d zones\n", num);
-}
-
-/** Remove a zone */
-static int
-perform_zone_remove(SSL* ssl, struct local_zones* zones, char* arg)
-{
- uint8_t* nm;
- int nmlabs;
- size_t nmlen;
- struct local_zone* z;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return 0;
- lock_rw_wrlock(&zones->lock);
- if((z=local_zones_find(zones, nm, nmlen,
- nmlabs, LDNS_RR_CLASS_IN))) {
- /* present in tree */
- local_zones_del_zone(zones, z);
- }
- lock_rw_unlock(&zones->lock);
- free(nm);
- return 1;
-}
-
-/** Do the local_zone_remove command */
-static void
-do_zone_remove(SSL* ssl, struct local_zones* zones, char* arg)
-{
- if(!perform_zone_remove(ssl, zones, arg))
- return;
- send_ok(ssl);
-}
-
-/** Do the local_zones_remove command */
-static void
-do_zones_remove(SSL* ssl, struct local_zones* zones)
-{
- char buf[2048];
- int num = 0;
- while(ssl_read_line(ssl, buf, sizeof(buf))) {
- if(buf[0] == 0x04 && buf[1] == 0)
- break; /* end of transmission */
- if(!perform_zone_remove(ssl, zones, buf)) {
- if(!ssl_printf(ssl, "error for input line: %s\n", buf))
- return;
- }
- else
- num++;
- }
- (void)ssl_printf(ssl, "removed %d zones\n", num);
-}
-
-/** Add new RR data */
-static int
-perform_data_add(SSL* ssl, struct local_zones* zones, char* arg)
-{
- if(!local_zones_add_RR(zones, arg)) {
- ssl_printf(ssl,"error in syntax or out of memory, %s\n", arg);
- return 0;
- }
- return 1;
-}
-
-/** Do the local_data command */
-static void
-do_data_add(SSL* ssl, struct local_zones* zones, char* arg)
-{
- if(!perform_data_add(ssl, zones, arg))
- return;
- send_ok(ssl);
-}
-
-/** Do the local_datas command */
-static void
-do_datas_add(SSL* ssl, struct local_zones* zones)
-{
- char buf[2048];
- int num = 0;
- while(ssl_read_line(ssl, buf, sizeof(buf))) {
- if(buf[0] == 0x04 && buf[1] == 0)
- break; /* end of transmission */
- if(!perform_data_add(ssl, zones, buf)) {
- if(!ssl_printf(ssl, "error for input line: %s\n", buf))
- return;
- }
- else
- num++;
- }
- (void)ssl_printf(ssl, "added %d datas\n", num);
-}
-
-/** Remove RR data */
-static int
-perform_data_remove(SSL* ssl, struct local_zones* zones, char* arg)
-{
- uint8_t* nm;
- int nmlabs;
- size_t nmlen;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return 0;
- local_zones_del_data(zones, nm,
- nmlen, nmlabs, LDNS_RR_CLASS_IN);
- free(nm);
- return 1;
-}
-
-/** Do the local_data_remove command */
-static void
-do_data_remove(SSL* ssl, struct local_zones* zones, char* arg)
-{
- if(!perform_data_remove(ssl, zones, arg))
- return;
- send_ok(ssl);
-}
-
-/** Do the local_datas_remove command */
-static void
-do_datas_remove(SSL* ssl, struct local_zones* zones)
-{
- char buf[2048];
- int num = 0;
- while(ssl_read_line(ssl, buf, sizeof(buf))) {
- if(buf[0] == 0x04 && buf[1] == 0)
- break; /* end of transmission */
- if(!perform_data_remove(ssl, zones, buf)) {
- if(!ssl_printf(ssl, "error for input line: %s\n", buf))
- return;
- }
- else
- num++;
- }
- (void)ssl_printf(ssl, "removed %d datas\n", num);
-}
-
-/** Add a new zone to view */
-static void
-do_view_zone_add(SSL* ssl, struct worker* worker, char* arg)
-{
- char* arg2;
- struct view* v;
- if(!find_arg2(ssl, arg, &arg2))
- return;
- v = views_find_view(worker->daemon->views,
- arg, 1 /* get write lock*/);
- if(!v) {
- ssl_printf(ssl,"no view with name: %s\n", arg);
- return;
- }
- if(!v->local_zones) {
- if(!(v->local_zones = local_zones_create())){
- lock_rw_unlock(&v->lock);
- ssl_printf(ssl,"error out of memory\n");
- return;
- }
- }
- do_zone_add(ssl, v->local_zones, arg2);
- lock_rw_unlock(&v->lock);
-}
-
-/** Remove a zone from view */
-static void
-do_view_zone_remove(SSL* ssl, struct worker* worker, char* arg)
-{
- char* arg2;
- struct view* v;
- if(!find_arg2(ssl, arg, &arg2))
- return;
- v = views_find_view(worker->daemon->views,
- arg, 1 /* get write lock*/);
- if(!v) {
- ssl_printf(ssl,"no view with name: %s\n", arg);
- return;
- }
- if(!v->local_zones) {
- lock_rw_unlock(&v->lock);
- send_ok(ssl);
- return;
- }
- do_zone_remove(ssl, v->local_zones, arg2);
- lock_rw_unlock(&v->lock);
-}
-
-/** Add new RR data to view */
-static void
-do_view_data_add(SSL* ssl, struct worker* worker, char* arg)
-{
- char* arg2;
- struct view* v;
- if(!find_arg2(ssl, arg, &arg2))
- return;
- v = views_find_view(worker->daemon->views,
- arg, 1 /* get write lock*/);
- if(!v) {
- ssl_printf(ssl,"no view with name: %s\n", arg);
- return;
- }
- if(!v->local_zones) {
- if(!(v->local_zones = local_zones_create())){
- lock_rw_unlock(&v->lock);
- ssl_printf(ssl,"error out of memory\n");
- return;
- }
- }
- do_data_add(ssl, v->local_zones, arg2);
- lock_rw_unlock(&v->lock);
-}
-
-/** Remove RR data from view */
-static void
-do_view_data_remove(SSL* ssl, struct worker* worker, char* arg)
-{
- char* arg2;
- struct view* v;
- if(!find_arg2(ssl, arg, &arg2))
- return;
- v = views_find_view(worker->daemon->views,
- arg, 1 /* get write lock*/);
- if(!v) {
- ssl_printf(ssl,"no view with name: %s\n", arg);
- return;
- }
- if(!v->local_zones) {
- lock_rw_unlock(&v->lock);
- send_ok(ssl);
- return;
- }
- do_data_remove(ssl, v->local_zones, arg2);
- lock_rw_unlock(&v->lock);
-}
-
-/** cache lookup of nameservers */
-static void
-do_lookup(SSL* ssl, struct worker* worker, char* arg)
-{
- uint8_t* nm;
- int nmlabs;
- size_t nmlen;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return;
- (void)print_deleg_lookup(ssl, worker, nm, nmlen, nmlabs);
- free(nm);
-}
-
-/** flush something from rrset and msg caches */
-static void
-do_cache_remove(struct worker* worker, uint8_t* nm, size_t nmlen,
- uint16_t t, uint16_t c)
-{
- hashvalue_type h;
- struct query_info k;
- rrset_cache_remove(worker->env.rrset_cache, nm, nmlen, t, c, 0);
- if(t == LDNS_RR_TYPE_SOA)
- rrset_cache_remove(worker->env.rrset_cache, nm, nmlen, t, c,
- PACKED_RRSET_SOA_NEG);
- k.qname = nm;
- k.qname_len = nmlen;
- k.qtype = t;
- k.qclass = c;
- k.local_alias = NULL;
- h = query_info_hash(&k, 0);
- slabhash_remove(worker->env.msg_cache, h, &k);
- if(t == LDNS_RR_TYPE_AAAA) {
- /* for AAAA also flush dns64 bit_cd packet */
- h = query_info_hash(&k, BIT_CD);
- slabhash_remove(worker->env.msg_cache, h, &k);
- }
-}
-
-/** flush a type */
-static void
-do_flush_type(SSL* ssl, struct worker* worker, char* arg)
-{
- uint8_t* nm;
- int nmlabs;
- size_t nmlen;
- char* arg2;
- uint16_t t;
- if(!find_arg2(ssl, arg, &arg2))
- return;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return;
- t = sldns_get_rr_type_by_name(arg2);
- do_cache_remove(worker, nm, nmlen, t, LDNS_RR_CLASS_IN);
-
- free(nm);
- send_ok(ssl);
-}
-
-/** flush statistics */
-static void
-do_flush_stats(SSL* ssl, struct worker* worker)
-{
- worker_stats_clear(worker);
- send_ok(ssl);
-}
-
-/**
- * Local info for deletion functions
- */
-struct del_info {
- /** worker */
- struct worker* worker;
- /** name to delete */
- uint8_t* name;
- /** length */
- size_t len;
- /** labels */
- int labs;
- /** time to invalidate to */
- time_t expired;
- /** number of rrsets removed */
- size_t num_rrsets;
- /** number of msgs removed */
- size_t num_msgs;
- /** number of key entries removed */
- size_t num_keys;
- /** length of addr */
- socklen_t addrlen;
- /** socket address for host deletion */
- struct sockaddr_storage addr;
-};
-
-/** callback to delete hosts in infra cache */
-static void
-infra_del_host(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct infra_key* k = (struct infra_key*)e->key;
- if(sockaddr_cmp(&inf->addr, inf->addrlen, &k->addr, k->addrlen) == 0) {
- struct infra_data* d = (struct infra_data*)e->data;
- d->probedelay = 0;
- d->timeout_A = 0;
- d->timeout_AAAA = 0;
- d->timeout_other = 0;
- rtt_init(&d->rtt);
- if(d->ttl > inf->expired) {
- d->ttl = inf->expired;
- inf->num_keys++;
- }
- }
-}
-
-/** flush infra cache */
-static void
-do_flush_infra(SSL* ssl, struct worker* worker, char* arg)
-{
- struct sockaddr_storage addr;
- socklen_t len;
- struct del_info inf;
- if(strcmp(arg, "all") == 0) {
- slabhash_clear(worker->env.infra_cache->hosts);
- send_ok(ssl);
- return;
- }
- if(!ipstrtoaddr(arg, UNBOUND_DNS_PORT, &addr, &len)) {
- (void)ssl_printf(ssl, "error parsing ip addr: '%s'\n", arg);
- return;
- }
- /* delete all entries from cache */
- /* what we do is to set them all expired */
- inf.worker = worker;
- inf.name = 0;
- inf.len = 0;
- inf.labs = 0;
- inf.expired = *worker->env.now;
- inf.expired -= 3; /* handle 3 seconds skew between threads */
- inf.num_rrsets = 0;
- inf.num_msgs = 0;
- inf.num_keys = 0;
- inf.addrlen = len;
- memmove(&inf.addr, &addr, len);
- slabhash_traverse(worker->env.infra_cache->hosts, 1, &infra_del_host,
- &inf);
- send_ok(ssl);
-}
-
-/** flush requestlist */
-static void
-do_flush_requestlist(SSL* ssl, struct worker* worker)
-{
- mesh_delete_all(worker->env.mesh);
- send_ok(ssl);
-}
-
-/** callback to delete rrsets in a zone */
-static void
-zone_del_rrset(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct ub_packed_rrset_key* k = (struct ub_packed_rrset_key*)e->key;
- if(dname_subdomain_c(k->rk.dname, inf->name)) {
- struct packed_rrset_data* d =
- (struct packed_rrset_data*)e->data;
- if(d->ttl > inf->expired) {
- d->ttl = inf->expired;
- inf->num_rrsets++;
- }
- }
-}
-
-/** callback to delete messages in a zone */
-static void
-zone_del_msg(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct msgreply_entry* k = (struct msgreply_entry*)e->key;
- if(dname_subdomain_c(k->key.qname, inf->name)) {
- struct reply_info* d = (struct reply_info*)e->data;
- if(d->ttl > inf->expired) {
- d->ttl = inf->expired;
- inf->num_msgs++;
- }
- }
-}
-
-/** callback to delete keys in zone */
-static void
-zone_del_kcache(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct key_entry_key* k = (struct key_entry_key*)e->key;
- if(dname_subdomain_c(k->name, inf->name)) {
- struct key_entry_data* d = (struct key_entry_data*)e->data;
- if(d->ttl > inf->expired) {
- d->ttl = inf->expired;
- inf->num_keys++;
- }
- }
-}
-
-/** remove all rrsets and keys from zone from cache */
-static void
-do_flush_zone(SSL* ssl, struct worker* worker, char* arg)
-{
- uint8_t* nm;
- int nmlabs;
- size_t nmlen;
- struct del_info inf;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return;
- /* delete all RRs and key entries from zone */
- /* what we do is to set them all expired */
- inf.worker = worker;
- inf.name = nm;
- inf.len = nmlen;
- inf.labs = nmlabs;
- inf.expired = *worker->env.now;
- inf.expired -= 3; /* handle 3 seconds skew between threads */
- inf.num_rrsets = 0;
- inf.num_msgs = 0;
- inf.num_keys = 0;
- slabhash_traverse(&worker->env.rrset_cache->table, 1,
- &zone_del_rrset, &inf);
-
- slabhash_traverse(worker->env.msg_cache, 1, &zone_del_msg, &inf);
-
- /* and validator cache */
- if(worker->env.key_cache) {
- slabhash_traverse(worker->env.key_cache->slab, 1,
- &zone_del_kcache, &inf);
- }
-
- free(nm);
-
- (void)ssl_printf(ssl, "ok removed %lu rrsets, %lu messages "
- "and %lu key entries\n", (unsigned long)inf.num_rrsets,
- (unsigned long)inf.num_msgs, (unsigned long)inf.num_keys);
-}
-
-/** callback to delete bogus rrsets */
-static void
-bogus_del_rrset(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct packed_rrset_data* d = (struct packed_rrset_data*)e->data;
- if(d->security == sec_status_bogus) {
- d->ttl = inf->expired;
- inf->num_rrsets++;
- }
-}
-
-/** callback to delete bogus messages */
-static void
-bogus_del_msg(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct reply_info* d = (struct reply_info*)e->data;
- if(d->security == sec_status_bogus) {
- d->ttl = inf->expired;
- inf->num_msgs++;
- }
-}
-
-/** callback to delete bogus keys */
-static void
-bogus_del_kcache(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct key_entry_data* d = (struct key_entry_data*)e->data;
- if(d->isbad) {
- d->ttl = inf->expired;
- inf->num_keys++;
- }
-}
-
-/** remove all bogus rrsets, msgs and keys from cache */
-static void
-do_flush_bogus(SSL* ssl, struct worker* worker)
-{
- struct del_info inf;
- /* what we do is to set them all expired */
- inf.worker = worker;
- inf.expired = *worker->env.now;
- inf.expired -= 3; /* handle 3 seconds skew between threads */
- inf.num_rrsets = 0;
- inf.num_msgs = 0;
- inf.num_keys = 0;
- slabhash_traverse(&worker->env.rrset_cache->table, 1,
- &bogus_del_rrset, &inf);
-
- slabhash_traverse(worker->env.msg_cache, 1, &bogus_del_msg, &inf);
-
- /* and validator cache */
- if(worker->env.key_cache) {
- slabhash_traverse(worker->env.key_cache->slab, 1,
- &bogus_del_kcache, &inf);
- }
-
- (void)ssl_printf(ssl, "ok removed %lu rrsets, %lu messages "
- "and %lu key entries\n", (unsigned long)inf.num_rrsets,
- (unsigned long)inf.num_msgs, (unsigned long)inf.num_keys);
-}
-
-/** callback to delete negative and servfail rrsets */
-static void
-negative_del_rrset(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct ub_packed_rrset_key* k = (struct ub_packed_rrset_key*)e->key;
- struct packed_rrset_data* d = (struct packed_rrset_data*)e->data;
- /* delete the parentside negative cache rrsets,
- * these are namerserver rrsets that failed lookup, rdata empty */
- if((k->rk.flags & PACKED_RRSET_PARENT_SIDE) && d->count == 1 &&
- d->rrsig_count == 0 && d->rr_len[0] == 0) {
- d->ttl = inf->expired;
- inf->num_rrsets++;
- }
-}
-
-/** callback to delete negative and servfail messages */
-static void
-negative_del_msg(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct reply_info* d = (struct reply_info*)e->data;
- /* rcode not NOERROR: NXDOMAIN, SERVFAIL, ..: an nxdomain or error
- * or NOERROR rcode with ANCOUNT==0: a NODATA answer */
- if(FLAGS_GET_RCODE(d->flags) != 0 || d->an_numrrsets == 0) {
- d->ttl = inf->expired;
- inf->num_msgs++;
- }
-}
-
-/** callback to delete negative key entries */
-static void
-negative_del_kcache(struct lruhash_entry* e, void* arg)
-{
- /* entry is locked */
- struct del_info* inf = (struct del_info*)arg;
- struct key_entry_data* d = (struct key_entry_data*)e->data;
- /* could be bad because of lookup failure on the DS, DNSKEY, which
- * was nxdomain or servfail, and thus a result of negative lookups */
- if(d->isbad) {
- d->ttl = inf->expired;
- inf->num_keys++;
- }
-}
-
-/** remove all negative(NODATA,NXDOMAIN), and servfail messages from cache */
-static void
-do_flush_negative(SSL* ssl, struct worker* worker)
-{
- struct del_info inf;
- /* what we do is to set them all expired */
- inf.worker = worker;
- inf.expired = *worker->env.now;
- inf.expired -= 3; /* handle 3 seconds skew between threads */
- inf.num_rrsets = 0;
- inf.num_msgs = 0;
- inf.num_keys = 0;
- slabhash_traverse(&worker->env.rrset_cache->table, 1,
- &negative_del_rrset, &inf);
-
- slabhash_traverse(worker->env.msg_cache, 1, &negative_del_msg, &inf);
-
- /* and validator cache */
- if(worker->env.key_cache) {
- slabhash_traverse(worker->env.key_cache->slab, 1,
- &negative_del_kcache, &inf);
- }
-
- (void)ssl_printf(ssl, "ok removed %lu rrsets, %lu messages "
- "and %lu key entries\n", (unsigned long)inf.num_rrsets,
- (unsigned long)inf.num_msgs, (unsigned long)inf.num_keys);
-}
-
-/** remove name rrset from cache */
-static void
-do_flush_name(SSL* ssl, struct worker* w, char* arg)
-{
- uint8_t* nm;
- int nmlabs;
- size_t nmlen;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return;
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_A, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_AAAA, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_NS, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_SOA, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_CNAME, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_DNAME, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_MX, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_PTR, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_SRV, LDNS_RR_CLASS_IN);
- do_cache_remove(w, nm, nmlen, LDNS_RR_TYPE_NAPTR, LDNS_RR_CLASS_IN);
-
- free(nm);
- send_ok(ssl);
-}
-
-/** printout a delegation point info */
-static int
-ssl_print_name_dp(SSL* ssl, const char* str, uint8_t* nm, uint16_t dclass,
- struct delegpt* dp)
-{
- char buf[257];
- struct delegpt_ns* ns;
- struct delegpt_addr* a;
- int f = 0;
- if(str) { /* print header for forward, stub */
- char* c = sldns_wire2str_class(dclass);
- dname_str(nm, buf);
- if(!ssl_printf(ssl, "%s %s %s ", buf, (c?c:"CLASS??"), str)) {
- free(c);
- return 0;
- }
- free(c);
- }
- for(ns = dp->nslist; ns; ns = ns->next) {
- dname_str(ns->name, buf);
- if(!ssl_printf(ssl, "%s%s", (f?" ":""), buf))
- return 0;
- f = 1;
- }
- for(a = dp->target_list; a; a = a->next_target) {
- addr_to_str(&a->addr, a->addrlen, buf, sizeof(buf));
- if(!ssl_printf(ssl, "%s%s", (f?" ":""), buf))
- return 0;
- f = 1;
- }
- return ssl_printf(ssl, "\n");
-}
-
-
-/** print root forwards */
-static int
-print_root_fwds(SSL* ssl, struct iter_forwards* fwds, uint8_t* root)
-{
- struct delegpt* dp;
- dp = forwards_lookup(fwds, root, LDNS_RR_CLASS_IN);
- if(!dp)
- return ssl_printf(ssl, "off (using root hints)\n");
- /* if dp is returned it must be the root */
- log_assert(query_dname_compare(dp->name, root)==0);
- return ssl_print_name_dp(ssl, NULL, root, LDNS_RR_CLASS_IN, dp);
-}
-
-/** parse args into delegpt */
-static struct delegpt*
-parse_delegpt(SSL* ssl, char* args, uint8_t* nm, int allow_names)
-{
- /* parse args and add in */
- char* p = args;
- char* todo;
- struct delegpt* dp = delegpt_create_mlc(nm);
- struct sockaddr_storage addr;
- socklen_t addrlen;
- if(!dp) {
- (void)ssl_printf(ssl, "error out of memory\n");
- return NULL;
- }
- while(p) {
- todo = p;
- p = strchr(p, ' '); /* find next spot, if any */
- if(p) {
- *p++ = 0; /* end this spot */
- p = skipwhite(p); /* position at next spot */
- }
- /* parse address */
- if(!extstrtoaddr(todo, &addr, &addrlen)) {
- if(allow_names) {
- uint8_t* n = NULL;
- size_t ln;
- int lb;
- if(!parse_arg_name(ssl, todo, &n, &ln, &lb)) {
- (void)ssl_printf(ssl, "error cannot "
- "parse IP address or name "
- "'%s'\n", todo);
- delegpt_free_mlc(dp);
- return NULL;
- }
- if(!delegpt_add_ns_mlc(dp, n, 0)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- free(n);
- delegpt_free_mlc(dp);
- return NULL;
- }
- free(n);
-
- } else {
- (void)ssl_printf(ssl, "error cannot parse"
- " IP address '%s'\n", todo);
- delegpt_free_mlc(dp);
- return NULL;
- }
- } else {
- /* add address */
- if(!delegpt_add_addr_mlc(dp, &addr, addrlen, 0, 0)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- delegpt_free_mlc(dp);
- return NULL;
- }
- }
- }
- dp->has_parent_side_NS = 1;
- return dp;
-}
-
-/** do the status command */
-static void
-do_forward(SSL* ssl, struct worker* worker, char* args)
-{
- struct iter_forwards* fwd = worker->env.fwds;
- uint8_t* root = (uint8_t*)"\000";
- if(!fwd) {
- (void)ssl_printf(ssl, "error: structure not allocated\n");
- return;
- }
- if(args == NULL || args[0] == 0) {
- (void)print_root_fwds(ssl, fwd, root);
- return;
- }
- /* set root forwards for this thread. since we are in remote control
- * the actual mesh is not running, so we can freely edit it. */
- /* delete all the existing queries first */
- mesh_delete_all(worker->env.mesh);
- if(strcmp(args, "off") == 0) {
- forwards_delete_zone(fwd, LDNS_RR_CLASS_IN, root);
- } else {
- struct delegpt* dp;
- if(!(dp = parse_delegpt(ssl, args, root, 0)))
- return;
- if(!forwards_add_zone(fwd, LDNS_RR_CLASS_IN, dp)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- return;
- }
- }
- send_ok(ssl);
-}
-
-static int
-parse_fs_args(SSL* ssl, char* args, uint8_t** nm, struct delegpt** dp,
- int* insecure, int* prime)
-{
- char* zonename;
- char* rest;
- size_t nmlen;
- int nmlabs;
- /* parse all -x args */
- while(args[0] == '+') {
- if(!find_arg2(ssl, args, &rest))
- return 0;
- while(*(++args) != 0) {
- if(*args == 'i' && insecure)
- *insecure = 1;
- else if(*args == 'p' && prime)
- *prime = 1;
- else {
- (void)ssl_printf(ssl, "error: unknown option %s\n", args);
- return 0;
- }
- }
- args = rest;
- }
- /* parse name */
- if(dp) {
- if(!find_arg2(ssl, args, &rest))
- return 0;
- zonename = args;
- args = rest;
- } else zonename = args;
- if(!parse_arg_name(ssl, zonename, nm, &nmlen, &nmlabs))
- return 0;
-
- /* parse dp */
- if(dp) {
- if(!(*dp = parse_delegpt(ssl, args, *nm, 1))) {
- free(*nm);
- return 0;
- }
- }
- return 1;
-}
-
-/** do the forward_add command */
-static void
-do_forward_add(SSL* ssl, struct worker* worker, char* args)
-{
- struct iter_forwards* fwd = worker->env.fwds;
- int insecure = 0;
- uint8_t* nm = NULL;
- struct delegpt* dp = NULL;
- if(!parse_fs_args(ssl, args, &nm, &dp, &insecure, NULL))
- return;
- if(insecure && worker->env.anchors) {
- if(!anchors_add_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
- nm)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- delegpt_free_mlc(dp);
- free(nm);
- return;
- }
- }
- if(!forwards_add_zone(fwd, LDNS_RR_CLASS_IN, dp)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- free(nm);
- return;
- }
- free(nm);
- send_ok(ssl);
-}
-
-/** do the forward_remove command */
-static void
-do_forward_remove(SSL* ssl, struct worker* worker, char* args)
-{
- struct iter_forwards* fwd = worker->env.fwds;
- int insecure = 0;
- uint8_t* nm = NULL;
- if(!parse_fs_args(ssl, args, &nm, NULL, &insecure, NULL))
- return;
- if(insecure && worker->env.anchors)
- anchors_delete_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
- nm);
- forwards_delete_zone(fwd, LDNS_RR_CLASS_IN, nm);
- free(nm);
- send_ok(ssl);
-}
-
-/** do the stub_add command */
-static void
-do_stub_add(SSL* ssl, struct worker* worker, char* args)
-{
- struct iter_forwards* fwd = worker->env.fwds;
- int insecure = 0, prime = 0;
- uint8_t* nm = NULL;
- struct delegpt* dp = NULL;
- if(!parse_fs_args(ssl, args, &nm, &dp, &insecure, &prime))
- return;
- if(insecure && worker->env.anchors) {
- if(!anchors_add_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
- nm)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- delegpt_free_mlc(dp);
- free(nm);
- return;
- }
- }
- if(!forwards_add_stub_hole(fwd, LDNS_RR_CLASS_IN, nm)) {
- if(insecure && worker->env.anchors)
- anchors_delete_insecure(worker->env.anchors,
- LDNS_RR_CLASS_IN, nm);
- (void)ssl_printf(ssl, "error out of memory\n");
- delegpt_free_mlc(dp);
- free(nm);
- return;
- }
- if(!hints_add_stub(worker->env.hints, LDNS_RR_CLASS_IN, dp, !prime)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- forwards_delete_stub_hole(fwd, LDNS_RR_CLASS_IN, nm);
- if(insecure && worker->env.anchors)
- anchors_delete_insecure(worker->env.anchors,
- LDNS_RR_CLASS_IN, nm);
- free(nm);
- return;
- }
- free(nm);
- send_ok(ssl);
-}
-
-/** do the stub_remove command */
-static void
-do_stub_remove(SSL* ssl, struct worker* worker, char* args)
-{
- struct iter_forwards* fwd = worker->env.fwds;
- int insecure = 0;
- uint8_t* nm = NULL;
- if(!parse_fs_args(ssl, args, &nm, NULL, &insecure, NULL))
- return;
- if(insecure && worker->env.anchors)
- anchors_delete_insecure(worker->env.anchors, LDNS_RR_CLASS_IN,
- nm);
- forwards_delete_stub_hole(fwd, LDNS_RR_CLASS_IN, nm);
- hints_delete_stub(worker->env.hints, LDNS_RR_CLASS_IN, nm);
- free(nm);
- send_ok(ssl);
-}
-
-/** do the insecure_add command */
-static void
-do_insecure_add(SSL* ssl, struct worker* worker, char* arg)
-{
- size_t nmlen;
- int nmlabs;
- uint8_t* nm = NULL;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return;
- if(worker->env.anchors) {
- if(!anchors_add_insecure(worker->env.anchors,
- LDNS_RR_CLASS_IN, nm)) {
- (void)ssl_printf(ssl, "error out of memory\n");
- free(nm);
- return;
- }
- }
- free(nm);
- send_ok(ssl);
-}
-
-/** do the insecure_remove command */
-static void
-do_insecure_remove(SSL* ssl, struct worker* worker, char* arg)
-{
- size_t nmlen;
- int nmlabs;
- uint8_t* nm = NULL;
- if(!parse_arg_name(ssl, arg, &nm, &nmlen, &nmlabs))
- return;
- if(worker->env.anchors)
- anchors_delete_insecure(worker->env.anchors,
- LDNS_RR_CLASS_IN, nm);
- free(nm);
- send_ok(ssl);
-}
-
-static void
-do_insecure_list(SSL* ssl, struct worker* worker)
-{
- char buf[257];
- struct trust_anchor* a;
- if(worker->env.anchors) {
- RBTREE_FOR(a, struct trust_anchor*, worker->env.anchors->tree) {
- if(a->numDS == 0 && a->numDNSKEY == 0) {
- dname_str(a->name, buf);
- ssl_printf(ssl, "%s\n", buf);
- }
- }
- }
-}
-
-/** do the status command */
-static void
-do_status(SSL* ssl, struct worker* worker)
-{
- int i;
- time_t uptime;
- if(!ssl_printf(ssl, "version: %s\n", PACKAGE_VERSION))
- return;
- if(!ssl_printf(ssl, "verbosity: %d\n", verbosity))
- return;
- if(!ssl_printf(ssl, "threads: %d\n", worker->daemon->num))
- return;
- if(!ssl_printf(ssl, "modules: %d [", worker->daemon->mods.num))
- return;
- for(i=0; i<worker->daemon->mods.num; i++) {
- if(!ssl_printf(ssl, " %s", worker->daemon->mods.mod[i]->name))
- return;
- }
- if(!ssl_printf(ssl, " ]\n"))
- return;
- uptime = (time_t)time(NULL) - (time_t)worker->daemon->time_boot.tv_sec;
- if(!ssl_printf(ssl, "uptime: " ARG_LL "d seconds\n", (long long)uptime))
- return;
- if(!ssl_printf(ssl, "options:%s%s\n" ,
- (worker->daemon->reuseport?" reuseport":""),
- (worker->daemon->rc->accept_list?" control(ssl)":"")))
- return;
- if(!ssl_printf(ssl, "unbound (pid %d) is running...\n",
- (int)getpid()))
- return;
-}
-
-/** get age for the mesh state */
-static void
-get_mesh_age(struct mesh_state* m, char* buf, size_t len,
- struct module_env* env)
-{
- if(m->reply_list) {
- struct timeval d;
- struct mesh_reply* r = m->reply_list;
- /* last reply is the oldest */
- while(r && r->next)
- r = r->next;
- timeval_subtract(&d, env->now_tv, &r->start_time);
- snprintf(buf, len, ARG_LL "d.%6.6d",
- (long long)d.tv_sec, (int)d.tv_usec);
- } else {
- snprintf(buf, len, "-");
- }
-}
-
-/** get status of a mesh state */
-static void
-get_mesh_status(struct mesh_area* mesh, struct mesh_state* m,
- char* buf, size_t len)
-{
- enum module_ext_state s = m->s.ext_state[m->s.curmod];
- const char *modname = mesh->mods.mod[m->s.curmod]->name;
- size_t l;
- if(strcmp(modname, "iterator") == 0 && s == module_wait_reply &&
- m->s.minfo[m->s.curmod]) {
- /* break into iterator to find out who its waiting for */
- struct iter_qstate* qstate = (struct iter_qstate*)
- m->s.minfo[m->s.curmod];
- struct outbound_list* ol = &qstate->outlist;
- struct outbound_entry* e;
- snprintf(buf, len, "%s wait for", modname);
- l = strlen(buf);
- buf += l; len -= l;
- if(ol->first == NULL)
- snprintf(buf, len, " (empty_list)");
- for(e = ol->first; e; e = e->next) {
- snprintf(buf, len, " ");
- l = strlen(buf);
- buf += l; len -= l;
- addr_to_str(&e->qsent->addr, e->qsent->addrlen,
- buf, len);
- l = strlen(buf);
- buf += l; len -= l;
- }
- } else if(s == module_wait_subquery) {
- /* look in subs from mesh state to see what */
- char nm[257];
- struct mesh_state_ref* sub;
- snprintf(buf, len, "%s wants", modname);
- l = strlen(buf);
- buf += l; len -= l;
- if(m->sub_set.count == 0)
- snprintf(buf, len, " (empty_list)");
- RBTREE_FOR(sub, struct mesh_state_ref*, &m->sub_set) {
- char* t = sldns_wire2str_type(sub->s->s.qinfo.qtype);
- char* c = sldns_wire2str_class(sub->s->s.qinfo.qclass);
- dname_str(sub->s->s.qinfo.qname, nm);
- snprintf(buf, len, " %s %s %s", (t?t:"TYPE??"),
- (c?c:"CLASS??"), nm);
- l = strlen(buf);
- buf += l; len -= l;
- free(t);
- free(c);
- }
- } else {
- snprintf(buf, len, "%s is %s", modname, strextstate(s));
- }
-}
-
-/** do the dump_requestlist command */
-static void
-do_dump_requestlist(SSL* ssl, struct worker* worker)
-{
- struct mesh_area* mesh;
- struct mesh_state* m;
- int num = 0;
- char buf[257];
- char timebuf[32];
- char statbuf[10240];
- if(!ssl_printf(ssl, "thread #%d\n", worker->thread_num))
- return;
- if(!ssl_printf(ssl, "# type cl name seconds module status\n"))
- return;
- /* show worker mesh contents */
- mesh = worker->env.mesh;
- if(!mesh) return;
- RBTREE_FOR(m, struct mesh_state*, &mesh->all) {
- char* t = sldns_wire2str_type(m->s.qinfo.qtype);
- char* c = sldns_wire2str_class(m->s.qinfo.qclass);
- dname_str(m->s.qinfo.qname, buf);
- get_mesh_age(m, timebuf, sizeof(timebuf), &worker->env);
- get_mesh_status(mesh, m, statbuf, sizeof(statbuf));
- if(!ssl_printf(ssl, "%3d %4s %2s %s %s %s\n",
- num, (t?t:"TYPE??"), (c?c:"CLASS??"), buf, timebuf,
- statbuf)) {
- free(t);
- free(c);
- return;
- }
- num++;
- free(t);
- free(c);
- }
-}
-
-/** structure for argument data for dump infra host */
-struct infra_arg {
- /** the infra cache */
- struct infra_cache* infra;
- /** the SSL connection */
- SSL* ssl;
- /** the time now */
- time_t now;
- /** ssl failure? stop writing and skip the rest. If the tcp
- * connection is broken, and writes fail, we then stop writing. */
- int ssl_failed;
-};
-
-/** callback for every host element in the infra cache */
-static void
-dump_infra_host(struct lruhash_entry* e, void* arg)
-{
- struct infra_arg* a = (struct infra_arg*)arg;
- struct infra_key* k = (struct infra_key*)e->key;
- struct infra_data* d = (struct infra_data*)e->data;
- char ip_str[1024];
- char name[257];
- if(a->ssl_failed)
- return;
- addr_to_str(&k->addr, k->addrlen, ip_str, sizeof(ip_str));
- dname_str(k->zonename, name);
- /* skip expired stuff (only backed off) */
- if(d->ttl < a->now) {
- if(d->rtt.rto >= USEFUL_SERVER_TOP_TIMEOUT) {
- if(!ssl_printf(a->ssl, "%s %s expired rto %d\n", ip_str,
- name, d->rtt.rto)) {
- a->ssl_failed = 1;
- return;
- }
- }
- return;
- }
- if(!ssl_printf(a->ssl, "%s %s ttl %lu ping %d var %d rtt %d rto %d "
- "tA %d tAAAA %d tother %d "
- "ednsknown %d edns %d delay %d lame dnssec %d rec %d A %d "
- "other %d\n", ip_str, name, (unsigned long)(d->ttl - a->now),
- d->rtt.srtt, d->rtt.rttvar, rtt_notimeout(&d->rtt), d->rtt.rto,
- d->timeout_A, d->timeout_AAAA, d->timeout_other,
- (int)d->edns_lame_known, (int)d->edns_version,
- (int)(a->now<d->probedelay?(d->probedelay - a->now):0),
- (int)d->isdnsseclame, (int)d->rec_lame, (int)d->lame_type_A,
- (int)d->lame_other)) {
- a->ssl_failed = 1;
- return;
- }
-}
-
-/** do the dump_infra command */
-static void
-do_dump_infra(SSL* ssl, struct worker* worker)
-{
- struct infra_arg arg;
- arg.infra = worker->env.infra_cache;
- arg.ssl = ssl;
- arg.now = *worker->env.now;
- arg.ssl_failed = 0;
- slabhash_traverse(arg.infra->hosts, 0, &dump_infra_host, (void*)&arg);
-}
-
-/** do the log_reopen command */
-static void
-do_log_reopen(SSL* ssl, struct worker* worker)
-{
- struct config_file* cfg = worker->env.cfg;
- send_ok(ssl);
- log_init(cfg->logfile, cfg->use_syslog, cfg->chrootdir);
-}
-
-/** do the set_option command */
-static void
-do_set_option(SSL* ssl, struct worker* worker, char* arg)
-{
- char* arg2;
- if(!find_arg2(ssl, arg, &arg2))
- return;
- if(!config_set_option(worker->env.cfg, arg, arg2)) {
- (void)ssl_printf(ssl, "error setting option\n");
- return;
- }
- /* effectuate some arguments */
- if(strcmp(arg, "val-override-date:") == 0) {
- int m = modstack_find(&worker->env.mesh->mods, "validator");
- struct val_env* val_env = NULL;
- if(m != -1) val_env = (struct val_env*)worker->env.modinfo[m];
- if(val_env)
- val_env->date_override = worker->env.cfg->val_date_override;
- }
- send_ok(ssl);
-}
-
-/* routine to printout option values over SSL */
-void remote_get_opt_ssl(char* line, void* arg)
-{
- SSL* ssl = (SSL*)arg;
- (void)ssl_printf(ssl, "%s\n", line);
-}
-
-/** do the get_option command */
-static void
-do_get_option(SSL* ssl, struct worker* worker, char* arg)
-{
- int r;
- r = config_get_option(worker->env.cfg, arg, remote_get_opt_ssl, ssl);
- if(!r) {
- (void)ssl_printf(ssl, "error unknown option\n");
- return;
- }
-}
-
-/** do the list_forwards command */
-static void
-do_list_forwards(SSL* ssl, struct worker* worker)
-{
- /* since its a per-worker structure no locks needed */
- struct iter_forwards* fwds = worker->env.fwds;
- struct iter_forward_zone* z;
- struct trust_anchor* a;
- int insecure;
- RBTREE_FOR(z, struct iter_forward_zone*, fwds->tree) {
- if(!z->dp) continue; /* skip empty marker for stub */
-
- /* see if it is insecure */
- insecure = 0;
- if(worker->env.anchors &&
- (a=anchor_find(worker->env.anchors, z->name,
- z->namelabs, z->namelen, z->dclass))) {
- if(!a->keylist && !a->numDS && !a->numDNSKEY)
- insecure = 1;
- lock_basic_unlock(&a->lock);
- }
-
- if(!ssl_print_name_dp(ssl, (insecure?"forward +i":"forward"),
- z->name, z->dclass, z->dp))
- return;
- }
-}
-
-/** do the list_stubs command */
-static void
-do_list_stubs(SSL* ssl, struct worker* worker)
-{
- struct iter_hints_stub* z;
- struct trust_anchor* a;
- int insecure;
- char str[32];
- RBTREE_FOR(z, struct iter_hints_stub*, &worker->env.hints->tree) {
-
- /* see if it is insecure */
- insecure = 0;
- if(worker->env.anchors &&
- (a=anchor_find(worker->env.anchors, z->node.name,
- z->node.labs, z->node.len, z->node.dclass))) {
- if(!a->keylist && !a->numDS && !a->numDNSKEY)
- insecure = 1;
- lock_basic_unlock(&a->lock);
- }
-
- snprintf(str, sizeof(str), "stub %sprime%s",
- (z->noprime?"no":""), (insecure?" +i":""));
- if(!ssl_print_name_dp(ssl, str, z->node.name,
- z->node.dclass, z->dp))
- return;
- }
-}
-
-/** do the list_local_zones command */
-static void
-do_list_local_zones(SSL* ssl, struct local_zones* zones)
-{
- struct local_zone* z;
- char buf[257];
- lock_rw_rdlock(&zones->lock);
- RBTREE_FOR(z, struct local_zone*, &zones->ztree) {
- lock_rw_rdlock(&z->lock);
- dname_str(z->name, buf);
- if(!ssl_printf(ssl, "%s %s\n", buf,
- local_zone_type2str(z->type))) {
- /* failure to print */
- lock_rw_unlock(&z->lock);
- lock_rw_unlock(&zones->lock);
- return;
- }
- lock_rw_unlock(&z->lock);
- }
- lock_rw_unlock(&zones->lock);
-}
-
-/** do the list_local_data command */
-static void
-do_list_local_data(SSL* ssl, struct worker* worker, struct local_zones* zones)
-{
- struct local_zone* z;
- struct local_data* d;
- struct local_rrset* p;
- char* s = (char*)sldns_buffer_begin(worker->env.scratch_buffer);
- size_t slen = sldns_buffer_capacity(worker->env.scratch_buffer);
- lock_rw_rdlock(&zones->lock);
- RBTREE_FOR(z, struct local_zone*, &zones->ztree) {
- lock_rw_rdlock(&z->lock);
- RBTREE_FOR(d, struct local_data*, &z->data) {
- for(p = d->rrsets; p; p = p->next) {
- struct packed_rrset_data* d =
- (struct packed_rrset_data*)p->rrset->entry.data;
- size_t i;
- for(i=0; i<d->count + d->rrsig_count; i++) {
- if(!packed_rr_to_string(p->rrset, i,
- 0, s, slen)) {
- if(!ssl_printf(ssl, "BADRR\n")) {
- lock_rw_unlock(&z->lock);
- lock_rw_unlock(&zones->lock);
- return;
- }
- }
- if(!ssl_printf(ssl, "%s\n", s)) {
- lock_rw_unlock(&z->lock);
- lock_rw_unlock(&zones->lock);
- return;
- }
- }
- }
- }
- lock_rw_unlock(&z->lock);
- }
- lock_rw_unlock(&zones->lock);
-}
-
-/** do the view_list_local_zones command */
-static void
-do_view_list_local_zones(SSL* ssl, struct worker* worker, char* arg)
-{
- struct view* v = views_find_view(worker->daemon->views,
- arg, 0 /* get read lock*/);
- if(!v) {
- ssl_printf(ssl,"no view with name: %s\n", arg);
- return;
- }
- if(v->local_zones) {
- do_list_local_zones(ssl, v->local_zones);
- }
- lock_rw_unlock(&v->lock);
-}
-
-/** do the view_list_local_data command */
-static void
-do_view_list_local_data(SSL* ssl, struct worker* worker, char* arg)
-{
- struct view* v = views_find_view(worker->daemon->views,
- arg, 0 /* get read lock*/);
- if(!v) {
- ssl_printf(ssl,"no view with name: %s\n", arg);
- return;
- }
- if(v->local_zones) {
- do_list_local_data(ssl, worker, v->local_zones);
- }
- lock_rw_unlock(&v->lock);
-}
-
-/** struct for user arg ratelimit list */
-struct ratelimit_list_arg {
- /** the infra cache */
- struct infra_cache* infra;
- /** the SSL to print to */
- SSL* ssl;
- /** all or only ratelimited */
- int all;
- /** current time */
- time_t now;
-};
-
-#define ip_ratelimit_list_arg ratelimit_list_arg
-
-/** list items in the ratelimit table */
-static void
-rate_list(struct lruhash_entry* e, void* arg)
-{
- struct ratelimit_list_arg* a = (struct ratelimit_list_arg*)arg;
- struct rate_key* k = (struct rate_key*)e->key;
- struct rate_data* d = (struct rate_data*)e->data;
- char buf[257];
- int lim = infra_find_ratelimit(a->infra, k->name, k->namelen);
- int max = infra_rate_max(d, a->now);
- if(a->all == 0) {
- if(max < lim)
- return;
- }
- dname_str(k->name, buf);
- ssl_printf(a->ssl, "%s %d limit %d\n", buf, max, lim);
-}
-
-/** list items in the ip_ratelimit table */
-static void
-ip_rate_list(struct lruhash_entry* e, void* arg)
-{
- char ip[128];
- struct ip_ratelimit_list_arg* a = (struct ip_ratelimit_list_arg*)arg;
- struct ip_rate_key* k = (struct ip_rate_key*)e->key;
- struct ip_rate_data* d = (struct ip_rate_data*)e->data;
- int lim = infra_ip_ratelimit;
- int max = infra_rate_max(d, a->now);
- if(a->all == 0) {
- if(max < lim)
- return;
- }
- addr_to_str(&k->addr, k->addrlen, ip, sizeof(ip));
- ssl_printf(a->ssl, "%s %d limit %d\n", ip, max, lim);
-}
-
-/** do the ratelimit_list command */
-static void
-do_ratelimit_list(SSL* ssl, struct worker* worker, char* arg)
-{
- struct ratelimit_list_arg a;
- a.all = 0;
- a.infra = worker->env.infra_cache;
- a.now = *worker->env.now;
- a.ssl = ssl;
- arg = skipwhite(arg);
- if(strcmp(arg, "+a") == 0)
- a.all = 1;
- if(a.infra->domain_rates==NULL ||
- (a.all == 0 && infra_dp_ratelimit == 0))
- return;
- slabhash_traverse(a.infra->domain_rates, 0, rate_list, &a);
-}
-
-/** do the ip_ratelimit_list command */
-static void
-do_ip_ratelimit_list(SSL* ssl, struct worker* worker, char* arg)
-{
- struct ip_ratelimit_list_arg a;
- a.all = 0;
- a.infra = worker->env.infra_cache;
- a.now = *worker->env.now;
- a.ssl = ssl;
- arg = skipwhite(arg);
- if(strcmp(arg, "+a") == 0)
- a.all = 1;
- if(a.infra->client_ip_rates==NULL ||
- (a.all == 0 && infra_ip_ratelimit == 0))
- return;
- slabhash_traverse(a.infra->client_ip_rates, 0, ip_rate_list, &a);
-}
-
-/** tell other processes to execute the command */
-static void
-distribute_cmd(struct daemon_remote* rc, SSL* ssl, char* cmd)
-{
- int i;
- if(!cmd || !ssl)
- return;
- /* skip i=0 which is me */
- for(i=1; i<rc->worker->daemon->num; i++) {
- worker_send_cmd(rc->worker->daemon->workers[i],
- worker_cmd_remote);
- if(!tube_write_msg(rc->worker->daemon->workers[i]->cmd,
- (uint8_t*)cmd, strlen(cmd)+1, 0)) {
- ssl_printf(ssl, "error could not distribute cmd\n");
- return;
- }
- }
-}
-
-/** check for name with end-of-string, space or tab after it */
-static int
-cmdcmp(char* p, const char* cmd, size_t len)
-{
- return strncmp(p,cmd,len)==0 && (p[len]==0||p[len]==' '||p[len]=='\t');
-}
-
-/** execute a remote control command */
-static void
-execute_cmd(struct daemon_remote* rc, SSL* ssl, char* cmd,
- struct worker* worker)
-{
- char* p = skipwhite(cmd);
- /* compare command */
- if(cmdcmp(p, "stop", 4)) {
- do_stop(ssl, rc);
- return;
- } else if(cmdcmp(p, "reload", 6)) {
- do_reload(ssl, rc);
- return;
- } else if(cmdcmp(p, "stats_noreset", 13)) {
- do_stats(ssl, rc, 0);
- return;
- } else if(cmdcmp(p, "stats", 5)) {
- do_stats(ssl, rc, 1);
- return;
- } else if(cmdcmp(p, "status", 6)) {
- do_status(ssl, worker);
- return;
- } else if(cmdcmp(p, "dump_cache", 10)) {
- (void)dump_cache(ssl, worker);
- return;
- } else if(cmdcmp(p, "load_cache", 10)) {
- if(load_cache(ssl, worker)) send_ok(ssl);
- return;
- } else if(cmdcmp(p, "list_forwards", 13)) {
- do_list_forwards(ssl, worker);
- return;
- } else if(cmdcmp(p, "list_stubs", 10)) {
- do_list_stubs(ssl, worker);
- return;
- } else if(cmdcmp(p, "list_insecure", 13)) {
- do_insecure_list(ssl, worker);
- return;
- } else if(cmdcmp(p, "list_local_zones", 16)) {
- do_list_local_zones(ssl, worker->daemon->local_zones);
- return;
- } else if(cmdcmp(p, "list_local_data", 15)) {
- do_list_local_data(ssl, worker, worker->daemon->local_zones);
- return;
- } else if(cmdcmp(p, "view_list_local_zones", 21)) {
- do_view_list_local_zones(ssl, worker, skipwhite(p+21));
- return;
- } else if(cmdcmp(p, "view_list_local_data", 20)) {
- do_view_list_local_data(ssl, worker, skipwhite(p+20));
- return;
- } else if(cmdcmp(p, "ratelimit_list", 14)) {
- do_ratelimit_list(ssl, worker, p+14);
- return;
- } else if(cmdcmp(p, "ip_ratelimit_list", 17)) {
- do_ip_ratelimit_list(ssl, worker, p+17);
- return;
- } else if(cmdcmp(p, "stub_add", 8)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_stub_add(ssl, worker, skipwhite(p+8));
- return;
- } else if(cmdcmp(p, "stub_remove", 11)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_stub_remove(ssl, worker, skipwhite(p+11));
- return;
- } else if(cmdcmp(p, "forward_add", 11)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_forward_add(ssl, worker, skipwhite(p+11));
- return;
- } else if(cmdcmp(p, "forward_remove", 14)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_forward_remove(ssl, worker, skipwhite(p+14));
- return;
- } else if(cmdcmp(p, "insecure_add", 12)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_insecure_add(ssl, worker, skipwhite(p+12));
- return;
- } else if(cmdcmp(p, "insecure_remove", 15)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_insecure_remove(ssl, worker, skipwhite(p+15));
- return;
- } else if(cmdcmp(p, "forward", 7)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_forward(ssl, worker, skipwhite(p+7));
- return;
- } else if(cmdcmp(p, "flush_stats", 11)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_flush_stats(ssl, worker);
- return;
- } else if(cmdcmp(p, "flush_requestlist", 17)) {
- /* must always distribute this cmd */
- if(rc) distribute_cmd(rc, ssl, cmd);
- do_flush_requestlist(ssl, worker);
- return;
- } else if(cmdcmp(p, "lookup", 6)) {
- do_lookup(ssl, worker, skipwhite(p+6));
- return;
- }
-
-#ifdef THREADS_DISABLED
- /* other processes must execute the command as well */
- /* commands that should not be distributed, returned above. */
- if(rc) { /* only if this thread is the master (rc) thread */
- /* done before the code below, which may split the string */
- distribute_cmd(rc, ssl, cmd);
- }
-#endif
- if(cmdcmp(p, "verbosity", 9)) {
- do_verbosity(ssl, skipwhite(p+9));
- } else if(cmdcmp(p, "local_zone_remove", 17)) {
- do_zone_remove(ssl, worker->daemon->local_zones, skipwhite(p+17));
- } else if(cmdcmp(p, "local_zones_remove", 18)) {
- do_zones_remove(ssl, worker->daemon->local_zones);
- } else if(cmdcmp(p, "local_zone", 10)) {
- do_zone_add(ssl, worker->daemon->local_zones, skipwhite(p+10));
- } else if(cmdcmp(p, "local_zones", 11)) {
- do_zones_add(ssl, worker->daemon->local_zones);
- } else if(cmdcmp(p, "local_data_remove", 17)) {
- do_data_remove(ssl, worker->daemon->local_zones, skipwhite(p+17));
- } else if(cmdcmp(p, "local_datas_remove", 18)) {
- do_datas_remove(ssl, worker->daemon->local_zones);
- } else if(cmdcmp(p, "local_data", 10)) {
- do_data_add(ssl, worker->daemon->local_zones, skipwhite(p+10));
- } else if(cmdcmp(p, "local_datas", 11)) {
- do_datas_add(ssl, worker->daemon->local_zones);
- } else if(cmdcmp(p, "view_local_zone_remove", 22)) {
- do_view_zone_remove(ssl, worker, skipwhite(p+22));
- } else if(cmdcmp(p, "view_local_zone", 15)) {
- do_view_zone_add(ssl, worker, skipwhite(p+15));
- } else if(cmdcmp(p, "view_local_data_remove", 22)) {
- do_view_data_remove(ssl, worker, skipwhite(p+22));
- } else if(cmdcmp(p, "view_local_data", 15)) {
- do_view_data_add(ssl, worker, skipwhite(p+15));
- } else if(cmdcmp(p, "flush_zone", 10)) {
- do_flush_zone(ssl, worker, skipwhite(p+10));
- } else if(cmdcmp(p, "flush_type", 10)) {
- do_flush_type(ssl, worker, skipwhite(p+10));
- } else if(cmdcmp(p, "flush_infra", 11)) {
- do_flush_infra(ssl, worker, skipwhite(p+11));
- } else if(cmdcmp(p, "flush", 5)) {
- do_flush_name(ssl, worker, skipwhite(p+5));
- } else if(cmdcmp(p, "dump_requestlist", 16)) {
- do_dump_requestlist(ssl, worker);
- } else if(cmdcmp(p, "dump_infra", 10)) {
- do_dump_infra(ssl, worker);
- } else if(cmdcmp(p, "log_reopen", 10)) {
- do_log_reopen(ssl, worker);
- } else if(cmdcmp(p, "set_option", 10)) {
- do_set_option(ssl, worker, skipwhite(p+10));
- } else if(cmdcmp(p, "get_option", 10)) {
- do_get_option(ssl, worker, skipwhite(p+10));
- } else if(cmdcmp(p, "flush_bogus", 11)) {
- do_flush_bogus(ssl, worker);
- } else if(cmdcmp(p, "flush_negative", 14)) {
- do_flush_negative(ssl, worker);
- } else {
- (void)ssl_printf(ssl, "error unknown command '%s'\n", p);
- }
-}
-
-void
-daemon_remote_exec(struct worker* worker)
-{
- /* read the cmd string */
- uint8_t* msg = NULL;
- uint32_t len = 0;
- if(!tube_read_msg(worker->cmd, &msg, &len, 0)) {
- log_err("daemon_remote_exec: tube_read_msg failed");
- return;
- }
- verbose(VERB_ALGO, "remote exec distributed: %s", (char*)msg);
- execute_cmd(NULL, NULL, (char*)msg, worker);
- free(msg);
-}
-
-/** handle remote control request */
-static void
-handle_req(struct daemon_remote* rc, struct rc_state* s, SSL* ssl)
-{
- int r;
- char pre[10];
- char magic[7];
- char buf[1024];
-#ifdef USE_WINSOCK
- /* makes it possible to set the socket blocking again. */
- /* basically removes it from winsock_event ... */
- WSAEventSelect(s->c->fd, NULL, 0);
-#endif
- fd_set_block(s->c->fd);
-
- /* try to read magic UBCT[version]_space_ string */
- ERR_clear_error();
- if((r=SSL_read(ssl, magic, (int)sizeof(magic)-1)) <= 0) {
- if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN)
- return;
- log_crypto_err("could not SSL_read");
- return;
- }
- magic[6] = 0;
- if( r != 6 || strncmp(magic, "UBCT", 4) != 0) {
- verbose(VERB_QUERY, "control connection has bad magic string");
- /* probably wrong tool connected, ignore it completely */
- return;
- }
-
- /* read the command line */
- if(!ssl_read_line(ssl, buf, sizeof(buf))) {
- return;
- }
- snprintf(pre, sizeof(pre), "UBCT%d ", UNBOUND_CONTROL_VERSION);
- if(strcmp(magic, pre) != 0) {
- verbose(VERB_QUERY, "control connection had bad "
- "version %s, cmd: %s", magic, buf);
- ssl_printf(ssl, "error version mismatch\n");
- return;
- }
- verbose(VERB_DETAIL, "control cmd: %s", buf);
-
- /* figure out what to do */
- execute_cmd(rc, ssl, buf, rc->worker);
-}
-
-int remote_control_callback(struct comm_point* c, void* arg, int err,
- struct comm_reply* ATTR_UNUSED(rep))
-{
- struct rc_state* s = (struct rc_state*)arg;
- struct daemon_remote* rc = s->rc;
- int r;
- if(err != NETEVENT_NOERROR) {
- if(err==NETEVENT_TIMEOUT)
- log_err("remote control timed out");
- clean_point(rc, s);
- return 0;
- }
- /* (continue to) setup the SSL connection */
- ERR_clear_error();
- r = SSL_do_handshake(s->ssl);
- if(r != 1) {
- int r2 = SSL_get_error(s->ssl, r);
- if(r2 == SSL_ERROR_WANT_READ) {
- if(s->shake_state == rc_hs_read) {
- /* try again later */
- return 0;
- }
- s->shake_state = rc_hs_read;
- comm_point_listen_for_rw(c, 1, 0);
- return 0;
- } else if(r2 == SSL_ERROR_WANT_WRITE) {
- if(s->shake_state == rc_hs_write) {
- /* try again later */
- return 0;
- }
- s->shake_state = rc_hs_write;
- comm_point_listen_for_rw(c, 0, 1);
- return 0;
- } else {
- if(r == 0)
- log_err("remote control connection closed prematurely");
- log_addr(1, "failed connection from",
- &s->c->repinfo.addr, s->c->repinfo.addrlen);
- log_crypto_err("remote control failed ssl");
- clean_point(rc, s);
- return 0;
- }
- }
- s->shake_state = rc_none;
-
- /* once handshake has completed, check authentication */
- if (!rc->use_cert) {
- verbose(VERB_ALGO, "unauthenticated remote control connection");
- } else if(SSL_get_verify_result(s->ssl) == X509_V_OK) {
- X509* x = SSL_get_peer_certificate(s->ssl);
- if(!x) {
- verbose(VERB_DETAIL, "remote control connection "
- "provided no client certificate");
- clean_point(rc, s);
- return 0;
- }
- verbose(VERB_ALGO, "remote control connection authenticated");
- X509_free(x);
- } else {
- verbose(VERB_DETAIL, "remote control connection failed to "
- "authenticate with client certificate");
- clean_point(rc, s);
- return 0;
- }
-
- /* if OK start to actually handle the request */
- handle_req(rc, s, s->ssl);
-
- verbose(VERB_ALGO, "remote control operation completed");
- clean_point(rc, s);
- return 0;
-}