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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/smallapp/unbound-checkconf.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/smallapp/unbound-checkconf.c')
-rw-r--r--external/unbound/smallapp/unbound-checkconf.c619
1 files changed, 0 insertions, 619 deletions
diff --git a/external/unbound/smallapp/unbound-checkconf.c b/external/unbound/smallapp/unbound-checkconf.c
deleted file mode 100644
index ddf8b3a75..000000000
--- a/external/unbound/smallapp/unbound-checkconf.c
+++ /dev/null
@@ -1,619 +0,0 @@
-/*
- * checkconf/unbound-checkconf.c - config file checker for unbound.conf file.
- *
- * Copyright (c) 2007, 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
- *
- * The config checker checks for syntax and other errors in the unbound.conf
- * file, and can be used to check for errors before the server is started
- * or sigHUPped.
- * Exit status 1 means an error.
- */
-
-#include "config.h"
-#include "util/log.h"
-#include "util/config_file.h"
-#include "util/module.h"
-#include "util/net_help.h"
-#include "util/regional.h"
-#include "iterator/iterator.h"
-#include "iterator/iter_fwd.h"
-#include "iterator/iter_hints.h"
-#include "validator/validator.h"
-#include "services/localzone.h"
-#include "services/view.h"
-#include "respip/respip.h"
-#include "sldns/sbuffer.h"
-#ifdef HAVE_GETOPT_H
-#include <getopt.h>
-#endif
-#ifdef HAVE_PWD_H
-#include <pwd.h>
-#endif
-#ifdef HAVE_SYS_STAT_H
-#include <sys/stat.h>
-#endif
-#ifdef HAVE_GLOB_H
-#include <glob.h>
-#endif
-#ifdef WITH_PYTHONMODULE
-#include "pythonmod/pythonmod.h"
-#endif
-
-/** Give checkconf usage, and exit (1). */
-static void
-usage(void)
-{
- printf("Usage: unbound-checkconf [file]\n");
- printf(" Checks unbound configuration file for errors.\n");
- printf("file if omitted %s is used.\n", CONFIGFILE);
- printf("-o option print value of option to stdout.\n");
- printf("-f output full pathname with chroot applied, eg. with -o pidfile.\n");
- printf("-h show this usage help.\n");
- printf("Version %s\n", PACKAGE_VERSION);
- printf("BSD licensed, see LICENSE in source package for details.\n");
- printf("Report bugs to %s\n", PACKAGE_BUGREPORT);
- exit(1);
-}
-
-/**
- * Print given option to stdout
- * @param cfg: config
- * @param opt: option name without trailing :.
- * This is different from config_set_option.
- * @param final: if final pathname with chroot applied has to be printed.
- */
-static void
-print_option(struct config_file* cfg, const char* opt, int final)
-{
- if(strcmp(opt, "pidfile") == 0 && final) {
- char *p = fname_after_chroot(cfg->pidfile, cfg, 1);
- if(!p) fatal_exit("out of memory");
- printf("%s\n", p);
- free(p);
- return;
- }
- if(!config_get_option(cfg, opt, config_print_func, stdout))
- fatal_exit("cannot print option '%s'", opt);
-}
-
-/** check if module works with config */
-static void
-check_mod(struct config_file* cfg, struct module_func_block* fb)
-{
- struct module_env env;
- memset(&env, 0, sizeof(env));
- env.cfg = cfg;
- env.scratch = regional_create();
- env.scratch_buffer = sldns_buffer_new(BUFSIZ);
- if(!env.scratch || !env.scratch_buffer)
- fatal_exit("out of memory");
- if(!edns_known_options_init(&env))
- fatal_exit("out of memory");
- if(!(*fb->init)(&env, 0)) {
- fatal_exit("bad config for %s module", fb->name);
- }
- (*fb->deinit)(&env, 0);
- sldns_buffer_free(env.scratch_buffer);
- regional_destroy(env.scratch);
- edns_known_options_delete(&env);
-}
-
-/** check localzones */
-static void
-localzonechecks(struct config_file* cfg)
-{
- struct local_zones* zs;
- if(!(zs = local_zones_create()))
- fatal_exit("out of memory");
- if(!local_zones_apply_cfg(zs, cfg))
- fatal_exit("failed local-zone, local-data configuration");
- local_zones_delete(zs);
-}
-
-/** check view and response-ip configuration */
-static void
-view_and_respipchecks(struct config_file* cfg)
-{
- struct views* views = NULL;
- struct respip_set* respip = NULL;
- int ignored = 0;
- if(!(views = views_create()))
- fatal_exit("Could not create views: out of memory");
- if(!(respip = respip_set_create()))
- fatal_exit("Could not create respip set: out of memory");
- if(!views_apply_cfg(views, cfg))
- fatal_exit("Could not set up views");
- if(!respip_global_apply_cfg(respip, cfg))
- fatal_exit("Could not setup respip set");
- if(!respip_views_apply_cfg(views, cfg, &ignored))
- fatal_exit("Could not setup per-view respip sets");
- views_delete(views);
- respip_set_delete(respip);
-}
-
-/** emit warnings for IP in hosts */
-static void
-warn_hosts(const char* typ, struct config_stub* list)
-{
- struct sockaddr_storage a;
- socklen_t alen;
- struct config_stub* s;
- struct config_strlist* h;
- for(s=list; s; s=s->next) {
- for(h=s->hosts; h; h=h->next) {
- if(extstrtoaddr(h->str, &a, &alen)) {
- fprintf(stderr, "unbound-checkconf: warning:"
- " %s %s: \"%s\" is an IP%s address, "
- "and when looked up as a host name "
- "during use may not resolve.\n",
- s->name, typ, h->str,
- addr_is_ip6(&a, alen)?"6":"4");
- }
- }
- }
-}
-
-/** check interface strings */
-static void
-interfacechecks(struct config_file* cfg)
-{
- int d;
- struct sockaddr_storage a;
- socklen_t alen;
- int i, j;
- for(i=0; i<cfg->num_ifs; i++) {
- if(!extstrtoaddr(cfg->ifs[i], &a, &alen)) {
- fatal_exit("cannot parse interface specified as '%s'",
- cfg->ifs[i]);
- }
- for(j=0; j<cfg->num_ifs; j++) {
- if(i!=j && strcmp(cfg->ifs[i], cfg->ifs[j])==0)
- fatal_exit("interface: %s present twice, "
- "cannot bind same ports twice.",
- cfg->ifs[i]);
- }
- }
- for(i=0; i<cfg->num_out_ifs; i++) {
- if(!ipstrtoaddr(cfg->out_ifs[i], UNBOUND_DNS_PORT, &a, &alen) &&
- !netblockstrtoaddr(cfg->out_ifs[i], UNBOUND_DNS_PORT, &a, &alen, &d)) {
- fatal_exit("cannot parse outgoing-interface "
- "specified as '%s'", cfg->out_ifs[i]);
- }
- for(j=0; j<cfg->num_out_ifs; j++) {
- if(i!=j && strcmp(cfg->out_ifs[i], cfg->out_ifs[j])==0)
- fatal_exit("outgoing-interface: %s present "
- "twice, cannot bind same ports twice.",
- cfg->out_ifs[i]);
- }
- }
-}
-
-/** check acl ips */
-static void
-aclchecks(struct config_file* cfg)
-{
- int d;
- struct sockaddr_storage a;
- socklen_t alen;
- struct config_str2list* acl;
- for(acl=cfg->acls; acl; acl = acl->next) {
- if(!netblockstrtoaddr(acl->str, UNBOUND_DNS_PORT, &a, &alen,
- &d)) {
- fatal_exit("cannot parse access control address %s %s",
- acl->str, acl->str2);
- }
- }
-}
-
-/** true if fname is a file */
-static int
-is_file(const char* fname)
-{
- struct stat buf;
- if(stat(fname, &buf) < 0) {
- if(errno==EACCES) {
- printf("warning: no search permission for one of the directories in path: %s\n", fname);
- return 1;
- }
- perror(fname);
- return 0;
- }
- if(S_ISDIR(buf.st_mode)) {
- printf("%s is not a file\n", fname);
- return 0;
- }
- return 1;
-}
-
-/** true if fname is a directory */
-static int
-is_dir(const char* fname)
-{
- struct stat buf;
- if(stat(fname, &buf) < 0) {
- if(errno==EACCES) {
- printf("warning: no search permission for one of the directories in path: %s\n", fname);
- return 1;
- }
- perror(fname);
- return 0;
- }
- if(!(S_ISDIR(buf.st_mode))) {
- printf("%s is not a directory\n", fname);
- return 0;
- }
- return 1;
-}
-
-/** get base dir of a fname */
-static char*
-basedir(char* fname)
-{
- char* rev;
- if(!fname) fatal_exit("out of memory");
- rev = strrchr(fname, '/');
- if(!rev) return NULL;
- if(fname == rev) return NULL;
- rev[0] = 0;
- return fname;
-}
-
-/** check chroot for a file string */
-static void
-check_chroot_string(const char* desc, char** ss,
- const char* chrootdir, struct config_file* cfg)
-{
- char* str = *ss;
- if(str && str[0]) {
- *ss = fname_after_chroot(str, cfg, 1);
- if(!*ss) fatal_exit("out of memory");
- if(!is_file(*ss)) {
- if(chrootdir && chrootdir[0])
- fatal_exit("%s: \"%s\" does not exist in "
- "chrootdir %s", desc, str, chrootdir);
- else
- fatal_exit("%s: \"%s\" does not exist",
- desc, str);
- }
- /* put in a new full path for continued checking */
- free(str);
- }
-}
-
-/** check file list, every file must be inside the chroot location */
-static void
-check_chroot_filelist(const char* desc, struct config_strlist* list,
- const char* chrootdir, struct config_file* cfg)
-{
- struct config_strlist* p;
- for(p=list; p; p=p->next) {
- check_chroot_string(desc, &p->str, chrootdir, cfg);
- }
-}
-
-/** check file list, with wildcard processing */
-static void
-check_chroot_filelist_wild(const char* desc, struct config_strlist* list,
- const char* chrootdir, struct config_file* cfg)
-{
- struct config_strlist* p;
- for(p=list; p; p=p->next) {
-#ifdef HAVE_GLOB
- if(strchr(p->str, '*') || strchr(p->str, '[') ||
- strchr(p->str, '?') || strchr(p->str, '{') ||
- strchr(p->str, '~')) {
- char* s = p->str;
- /* adjust whole pattern for chroot and check later */
- p->str = fname_after_chroot(p->str, cfg, 1);
- free(s);
- } else
-#endif /* HAVE_GLOB */
- check_chroot_string(desc, &p->str, chrootdir, cfg);
- }
-}
-
-/** check configuration for errors */
-static void
-morechecks(struct config_file* cfg, const char* fname)
-{
- warn_hosts("stub-host", cfg->stubs);
- warn_hosts("forward-host", cfg->forwards);
- interfacechecks(cfg);
- aclchecks(cfg);
-
- if(cfg->verbosity < 0)
- fatal_exit("verbosity value < 0");
- if(cfg->num_threads <= 0 || cfg->num_threads > 10000)
- fatal_exit("num_threads value weird");
- if(!cfg->do_ip4 && !cfg->do_ip6)
- fatal_exit("ip4 and ip6 are both disabled, pointless");
- if(!cfg->do_ip6 && cfg->prefer_ip6)
- fatal_exit("cannot prefer and disable ip6, pointless");
- if(!cfg->do_udp && !cfg->do_tcp)
- fatal_exit("udp and tcp are both disabled, pointless");
- if(cfg->edns_buffer_size > cfg->msg_buffer_size)
- fatal_exit("edns-buffer-size larger than msg-buffer-size, "
- "answers will not fit in processing buffer");
-#ifdef UB_ON_WINDOWS
- w_config_adjust_directory(cfg);
-#endif
- if(cfg->chrootdir && cfg->chrootdir[0] &&
- cfg->chrootdir[strlen(cfg->chrootdir)-1] == '/')
- fatal_exit("chootdir %s has trailing slash '/' please remove.",
- cfg->chrootdir);
- if(cfg->chrootdir && cfg->chrootdir[0] &&
- !is_dir(cfg->chrootdir)) {
- fatal_exit("bad chroot directory");
- }
- if(cfg->chrootdir && cfg->chrootdir[0]) {
- char buf[10240];
- buf[0] = 0;
- if(fname[0] != '/') {
- if(getcwd(buf, sizeof(buf)) == NULL)
- fatal_exit("getcwd: %s", strerror(errno));
- (void)strlcat(buf, "/", sizeof(buf));
- }
- (void)strlcat(buf, fname, sizeof(buf));
- if(strncmp(buf, cfg->chrootdir, strlen(cfg->chrootdir)) != 0)
- fatal_exit("config file %s is not inside chroot %s",
- buf, cfg->chrootdir);
- }
- if(cfg->directory && cfg->directory[0]) {
- char* ad = fname_after_chroot(cfg->directory, cfg, 0);
- if(!ad) fatal_exit("out of memory");
- if(!is_dir(ad)) fatal_exit("bad chdir directory");
- free(ad);
- }
- if( (cfg->chrootdir && cfg->chrootdir[0]) ||
- (cfg->directory && cfg->directory[0])) {
- if(cfg->pidfile && cfg->pidfile[0]) {
- char* ad = (cfg->pidfile[0]=='/')?strdup(cfg->pidfile):
- fname_after_chroot(cfg->pidfile, cfg, 1);
- char* bd = basedir(ad);
- if(bd && !is_dir(bd))
- fatal_exit("pidfile directory does not exist");
- free(ad);
- }
- if(cfg->logfile && cfg->logfile[0]) {
- char* ad = fname_after_chroot(cfg->logfile, cfg, 1);
- char* bd = basedir(ad);
- if(bd && !is_dir(bd))
- fatal_exit("logfile directory does not exist");
- free(ad);
- }
- }
-
- check_chroot_filelist("file with root-hints",
- cfg->root_hints, cfg->chrootdir, cfg);
- check_chroot_filelist("trust-anchor-file",
- cfg->trust_anchor_file_list, cfg->chrootdir, cfg);
- check_chroot_filelist("auto-trust-anchor-file",
- cfg->auto_trust_anchor_file_list, cfg->chrootdir, cfg);
- check_chroot_filelist_wild("trusted-keys-file",
- cfg->trusted_keys_file_list, cfg->chrootdir, cfg);
- check_chroot_string("dlv-anchor-file", &cfg->dlv_anchor_file,
- cfg->chrootdir, cfg);
- /* remove chroot setting so that modules are not stripping pathnames*/
- free(cfg->chrootdir);
- cfg->chrootdir = NULL;
-
- /* There should be no reason for 'respip' module not to work with
- * dns64, but it's not explicitly confirmed, so the combination is
- * excluded below. It's simply unknown yet for the combination of
- * respip and other modules. */
- if(strcmp(cfg->module_conf, "iterator") != 0
- && strcmp(cfg->module_conf, "validator iterator") != 0
- && strcmp(cfg->module_conf, "dns64 validator iterator") != 0
- && strcmp(cfg->module_conf, "dns64 iterator") != 0
- && strcmp(cfg->module_conf, "respip iterator") != 0
- && strcmp(cfg->module_conf, "respip validator iterator") != 0
-#ifdef WITH_PYTHONMODULE
- && strcmp(cfg->module_conf, "python iterator") != 0
- && strcmp(cfg->module_conf, "python validator iterator") != 0
- && strcmp(cfg->module_conf, "validator python iterator") != 0
- && strcmp(cfg->module_conf, "dns64 python iterator") != 0
- && strcmp(cfg->module_conf, "dns64 python validator iterator") != 0
- && strcmp(cfg->module_conf, "dns64 validator python iterator") != 0
- && strcmp(cfg->module_conf, "python dns64 iterator") != 0
- && strcmp(cfg->module_conf, "python dns64 validator iterator") != 0
-#endif
-#ifdef USE_CACHEDB
- && strcmp(cfg->module_conf, "validator cachedb iterator") != 0
- && strcmp(cfg->module_conf, "cachedb iterator") != 0
- && strcmp(cfg->module_conf, "dns64 validator cachedb iterator") != 0
- && strcmp(cfg->module_conf, "dns64 cachedb iterator") != 0
-#endif
-#if defined(WITH_PYTHONMODULE) && defined(USE_CACHEDB)
- && strcmp(cfg->module_conf, "python dns64 cachedb iterator") != 0
- && strcmp(cfg->module_conf, "python dns64 validator cachedb iterator") != 0
- && strcmp(cfg->module_conf, "dns64 python cachedb iterator") != 0
- && strcmp(cfg->module_conf, "dns64 python validator cachedb iterator") != 0
- && strcmp(cfg->module_conf, "python cachedb iterator") != 0
- && strcmp(cfg->module_conf, "python validator cachedb iterator") != 0
- && strcmp(cfg->module_conf, "cachedb python iterator") != 0
- && strcmp(cfg->module_conf, "validator cachedb python iterator") != 0
- && strcmp(cfg->module_conf, "validator python cachedb iterator") != 0
-#endif
-#ifdef CLIENT_SUBNET
- && strcmp(cfg->module_conf, "subnetcache iterator") != 0
- && strcmp(cfg->module_conf, "subnetcache validator iterator") != 0
-#endif
-#if defined(WITH_PYTHONMODULE) && defined(CLIENT_SUBNET)
- && strcmp(cfg->module_conf, "python subnetcache iterator") != 0
- && strcmp(cfg->module_conf, "subnetcache python iterator") != 0
- && strcmp(cfg->module_conf, "subnetcache validator iterator") != 0
- && strcmp(cfg->module_conf, "python subnetcache validator iterator") != 0
- && strcmp(cfg->module_conf, "subnetcache python validator iterator") != 0
- && strcmp(cfg->module_conf, "subnetcache validator python iterator") != 0
-#endif
- ) {
- fatal_exit("module conf '%s' is not known to work",
- cfg->module_conf);
- }
-
-#ifdef HAVE_GETPWNAM
- if(cfg->username && cfg->username[0]) {
- if(getpwnam(cfg->username) == NULL)
- fatal_exit("user '%s' does not exist.", cfg->username);
-# ifdef HAVE_ENDPWENT
- endpwent();
-# endif
- }
-#endif
- if(cfg->remote_control_enable && cfg->remote_control_use_cert) {
- check_chroot_string("server-key-file", &cfg->server_key_file,
- cfg->chrootdir, cfg);
- check_chroot_string("server-cert-file", &cfg->server_cert_file,
- cfg->chrootdir, cfg);
- if(!is_file(cfg->control_key_file))
- fatal_exit("control-key-file: \"%s\" does not exist",
- cfg->control_key_file);
- if(!is_file(cfg->control_cert_file))
- fatal_exit("control-cert-file: \"%s\" does not exist",
- cfg->control_cert_file);
- }
-
- localzonechecks(cfg);
- view_and_respipchecks(cfg);
-}
-
-/** check forwards */
-static void
-check_fwd(struct config_file* cfg)
-{
- struct iter_forwards* fwd = forwards_create();
- if(!fwd || !forwards_apply_cfg(fwd, cfg)) {
- fatal_exit("Could not set forward zones");
- }
- forwards_delete(fwd);
-}
-
-/** check hints */
-static void
-check_hints(struct config_file* cfg)
-{
- struct iter_hints* hints = hints_create();
- if(!hints || !hints_apply_cfg(hints, cfg)) {
- fatal_exit("Could not set root or stub hints");
- }
- hints_delete(hints);
-}
-
-/** check config file */
-static void
-checkconf(const char* cfgfile, const char* opt, int final)
-{
- char oldwd[4096];
- struct config_file* cfg = config_create();
- if(!cfg)
- fatal_exit("out of memory");
- oldwd[0] = 0;
- if(!getcwd(oldwd, sizeof(oldwd))) {
- log_err("cannot getcwd: %s", strerror(errno));
- oldwd[0] = 0;
- }
- if(!config_read(cfg, cfgfile, NULL)) {
- /* config_read prints messages to stderr */
- config_delete(cfg);
- exit(1);
- }
- if(oldwd[0] && chdir(oldwd) == -1)
- log_err("cannot chdir(%s): %s", oldwd, strerror(errno));
- if(opt) {
- print_option(cfg, opt, final);
- config_delete(cfg);
- return;
- }
- morechecks(cfg, cfgfile);
- check_mod(cfg, iter_get_funcblock());
- check_mod(cfg, val_get_funcblock());
-#ifdef WITH_PYTHONMODULE
- if(strstr(cfg->module_conf, "python"))
- check_mod(cfg, pythonmod_get_funcblock());
-#endif
- check_fwd(cfg);
- check_hints(cfg);
- printf("unbound-checkconf: no errors in %s\n", cfgfile);
- config_delete(cfg);
-}
-
-/** getopt global, in case header files fail to declare it. */
-extern int optind;
-/** getopt global, in case header files fail to declare it. */
-extern char* optarg;
-
-/** Main routine for checkconf */
-int main(int argc, char* argv[])
-{
- int c;
- int final = 0;
- const char* f;
- const char* opt = NULL;
- const char* cfgfile = CONFIGFILE;
- log_ident_set("unbound-checkconf");
- log_init(NULL, 0, NULL);
- checklock_start();
-#ifdef USE_WINSOCK
- /* use registry config file in preference to compiletime location */
- if(!(cfgfile=w_lookup_reg_str("Software\\Unbound", "ConfigFile")))
- cfgfile = CONFIGFILE;
-#endif /* USE_WINSOCK */
- /* parse the options */
- while( (c=getopt(argc, argv, "fho:")) != -1) {
- switch(c) {
- case 'f':
- final = 1;
- break;
- case 'o':
- opt = optarg;
- break;
- case '?':
- case 'h':
- default:
- usage();
- }
- }
- argc -= optind;
- argv += optind;
- if(argc != 0 && argc != 1)
- usage();
- if(argc == 1)
- f = argv[0];
- else f = cfgfile;
- checkconf(f, opt, final);
- checklock_stop();
- return 0;
-}