1b7579f77SDag-Erling Smørgrav /* 2b7579f77SDag-Erling Smørgrav * checkconf/unbound-control.c - remote control utility for unbound. 3b7579f77SDag-Erling Smørgrav * 4b7579f77SDag-Erling Smørgrav * Copyright (c) 2008, NLnet Labs. All rights reserved. 5b7579f77SDag-Erling Smørgrav * 6b7579f77SDag-Erling Smørgrav * This software is open source. 7b7579f77SDag-Erling Smørgrav * 8b7579f77SDag-Erling Smørgrav * Redistribution and use in source and binary forms, with or without 9b7579f77SDag-Erling Smørgrav * modification, are permitted provided that the following conditions 10b7579f77SDag-Erling Smørgrav * are met: 11b7579f77SDag-Erling Smørgrav * 12b7579f77SDag-Erling Smørgrav * Redistributions of source code must retain the above copyright notice, 13b7579f77SDag-Erling Smørgrav * this list of conditions and the following disclaimer. 14b7579f77SDag-Erling Smørgrav * 15b7579f77SDag-Erling Smørgrav * Redistributions in binary form must reproduce the above copyright notice, 16b7579f77SDag-Erling Smørgrav * this list of conditions and the following disclaimer in the documentation 17b7579f77SDag-Erling Smørgrav * and/or other materials provided with the distribution. 18b7579f77SDag-Erling Smørgrav * 19b7579f77SDag-Erling Smørgrav * Neither the name of the NLNET LABS nor the names of its contributors may 20b7579f77SDag-Erling Smørgrav * be used to endorse or promote products derived from this software without 21b7579f77SDag-Erling Smørgrav * specific prior written permission. 22b7579f77SDag-Erling Smørgrav * 23b7579f77SDag-Erling Smørgrav * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 2417d15b25SDag-Erling Smørgrav * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 2517d15b25SDag-Erling Smørgrav * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 2617d15b25SDag-Erling Smørgrav * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2717d15b25SDag-Erling Smørgrav * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2817d15b25SDag-Erling Smørgrav * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 2917d15b25SDag-Erling Smørgrav * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 3017d15b25SDag-Erling Smørgrav * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 3117d15b25SDag-Erling Smørgrav * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 3217d15b25SDag-Erling Smørgrav * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 3317d15b25SDag-Erling Smørgrav * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 34b7579f77SDag-Erling Smørgrav */ 35b7579f77SDag-Erling Smørgrav 36b7579f77SDag-Erling Smørgrav /** 37b7579f77SDag-Erling Smørgrav * \file 38b7579f77SDag-Erling Smørgrav * 39b7579f77SDag-Erling Smørgrav * The remote control utility contacts the unbound server over ssl and 40b7579f77SDag-Erling Smørgrav * sends the command, receives the answer, and displays the result 41b7579f77SDag-Erling Smørgrav * from the commandline. 42b7579f77SDag-Erling Smørgrav */ 43b7579f77SDag-Erling Smørgrav 44b7579f77SDag-Erling Smørgrav #include "config.h" 45b7579f77SDag-Erling Smørgrav #ifdef HAVE_GETOPT_H 46b7579f77SDag-Erling Smørgrav #include <getopt.h> 47b7579f77SDag-Erling Smørgrav #endif 48b7579f77SDag-Erling Smørgrav #ifdef HAVE_OPENSSL_SSL_H 49b7579f77SDag-Erling Smørgrav #include <openssl/ssl.h> 50b7579f77SDag-Erling Smørgrav #endif 51b7579f77SDag-Erling Smørgrav #ifdef HAVE_OPENSSL_ERR_H 52b7579f77SDag-Erling Smørgrav #include <openssl/err.h> 53b7579f77SDag-Erling Smørgrav #endif 54b7579f77SDag-Erling Smørgrav #ifdef HAVE_OPENSSL_RAND_H 55b7579f77SDag-Erling Smørgrav #include <openssl/rand.h> 56b7579f77SDag-Erling Smørgrav #endif 57b7579f77SDag-Erling Smørgrav #include "util/log.h" 58b7579f77SDag-Erling Smørgrav #include "util/config_file.h" 59b7579f77SDag-Erling Smørgrav #include "util/locks.h" 60b7579f77SDag-Erling Smørgrav #include "util/net_help.h" 6165b390aaSDag-Erling Smørgrav #include "util/shm_side/shm_main.h" 6265b390aaSDag-Erling Smørgrav #include "daemon/stats.h" 6365b390aaSDag-Erling Smørgrav #include "sldns/wire2str.h" 6465b390aaSDag-Erling Smørgrav #include "sldns/pkthdr.h" 65b7579f77SDag-Erling Smørgrav 6665b390aaSDag-Erling Smørgrav #ifdef HAVE_SYS_IPC_H 6765b390aaSDag-Erling Smørgrav #include "sys/ipc.h" 6865b390aaSDag-Erling Smørgrav #endif 6965b390aaSDag-Erling Smørgrav #ifdef HAVE_SYS_SHM_H 7065b390aaSDag-Erling Smørgrav #include "sys/shm.h" 7165b390aaSDag-Erling Smørgrav #endif 7231099b50SDag-Erling Smørgrav #ifdef HAVE_SYS_UN_H 7331099b50SDag-Erling Smørgrav #include <sys/un.h> 7431099b50SDag-Erling Smørgrav #endif 7531099b50SDag-Erling Smørgrav 76b7579f77SDag-Erling Smørgrav /** Give unbound-control usage, and exit (1). */ 77b7579f77SDag-Erling Smørgrav static void 78b5663de9SDag-Erling Smørgrav usage(void) 79b7579f77SDag-Erling Smørgrav { 80b70d78d6SDag-Erling Smørgrav printf("Usage: local-unbound-control [options] command\n"); 81b7579f77SDag-Erling Smørgrav printf(" Remote control utility for unbound server.\n"); 82b7579f77SDag-Erling Smørgrav printf("Options:\n"); 83b7579f77SDag-Erling Smørgrav printf(" -c file config file, default is %s\n", CONFIGFILE); 84b7579f77SDag-Erling Smørgrav printf(" -s ip[@port] server address, if omitted config is used.\n"); 858ed2b524SDag-Erling Smørgrav printf(" -q quiet (don't print anything if it works ok).\n"); 86b7579f77SDag-Erling Smørgrav printf(" -h show this usage help.\n"); 87b7579f77SDag-Erling Smørgrav printf("Commands:\n"); 88b7579f77SDag-Erling Smørgrav printf(" start start server; runs unbound(8)\n"); 89b7579f77SDag-Erling Smørgrav printf(" stop stops the server\n"); 90b7579f77SDag-Erling Smørgrav printf(" reload reloads the server\n"); 91b7579f77SDag-Erling Smørgrav printf(" (this flushes data, stats, requestlist)\n"); 92b7579f77SDag-Erling Smørgrav printf(" stats print statistics\n"); 93b7579f77SDag-Erling Smørgrav printf(" stats_noreset peek at statistics\n"); 9465b390aaSDag-Erling Smørgrav #ifdef HAVE_SHMGET 9565b390aaSDag-Erling Smørgrav printf(" stats_shm print statistics using shm\n"); 9665b390aaSDag-Erling Smørgrav #endif 97b7579f77SDag-Erling Smørgrav printf(" status display status of server\n"); 98b7579f77SDag-Erling Smørgrav printf(" verbosity <number> change logging detail\n"); 99b7579f77SDag-Erling Smørgrav printf(" log_reopen close and open the logfile\n"); 100b7579f77SDag-Erling Smørgrav printf(" local_zone <name> <type> add new local zone\n"); 101b7579f77SDag-Erling Smørgrav printf(" local_zone_remove <name> remove local zone and its contents\n"); 102b7579f77SDag-Erling Smørgrav printf(" local_data <RR data...> add local data, for example\n"); 103b7579f77SDag-Erling Smørgrav printf(" local_data www.example.com A 192.0.2.1\n"); 104b7579f77SDag-Erling Smørgrav printf(" local_data_remove <name> remove local RR data from name\n"); 10565b390aaSDag-Erling Smørgrav printf(" local_zones, local_zones_remove, local_datas, local_datas_remove\n"); 10665b390aaSDag-Erling Smørgrav printf(" same, but read list from stdin\n"); 10765b390aaSDag-Erling Smørgrav printf(" (one entry per line).\n"); 108b7579f77SDag-Erling Smørgrav printf(" dump_cache print cache to stdout\n"); 109b7579f77SDag-Erling Smørgrav printf(" load_cache load cache from stdin\n"); 110b7579f77SDag-Erling Smørgrav printf(" lookup <name> print nameservers for name\n"); 111b7579f77SDag-Erling Smørgrav printf(" flush <name> flushes common types for name from cache\n"); 112b7579f77SDag-Erling Smørgrav printf(" types: A, AAAA, MX, PTR, NS,\n"); 113b7579f77SDag-Erling Smørgrav printf(" SOA, CNAME, DNAME, SRV, NAPTR\n"); 114b7579f77SDag-Erling Smørgrav printf(" flush_type <name> <type> flush name, type from cache\n"); 115b7579f77SDag-Erling Smørgrav printf(" flush_zone <name> flush everything at or under name\n"); 116b7579f77SDag-Erling Smørgrav printf(" from rr and dnssec caches\n"); 1178ed2b524SDag-Erling Smørgrav printf(" flush_bogus flush all bogus data\n"); 118ff825849SDag-Erling Smørgrav printf(" flush_negative flush all negative data\n"); 119b7579f77SDag-Erling Smørgrav printf(" flush_stats flush statistics, make zero\n"); 120b7579f77SDag-Erling Smørgrav printf(" flush_requestlist drop queries that are worked on\n"); 121e2d15004SDag-Erling Smørgrav printf(" dump_requestlist show what is worked on by first thread\n"); 122b7579f77SDag-Erling Smørgrav printf(" flush_infra [all | ip] remove ping, edns for one IP or all\n"); 123b7579f77SDag-Erling Smørgrav printf(" dump_infra show ping and edns entries\n"); 124b7579f77SDag-Erling Smørgrav printf(" set_option opt: val set option to value, no reload\n"); 125b7579f77SDag-Erling Smørgrav printf(" get_option opt get option value\n"); 126b7579f77SDag-Erling Smørgrav printf(" list_stubs list stub-zones and root hints in use\n"); 127b7579f77SDag-Erling Smørgrav printf(" list_forwards list forward-zones in use\n"); 12809a3aaf3SDag-Erling Smørgrav printf(" list_insecure list domain-insecure zones\n"); 129b7579f77SDag-Erling Smørgrav printf(" list_local_zones list local-zones in use\n"); 130b7579f77SDag-Erling Smørgrav printf(" list_local_data list local-data RRs in use\n"); 13117d15b25SDag-Erling Smørgrav printf(" insecure_add zone add domain-insecure zone\n"); 13217d15b25SDag-Erling Smørgrav printf(" insecure_remove zone remove domain-insecure zone\n"); 133b7579f77SDag-Erling Smørgrav printf(" forward_add [+i] zone addr.. add forward-zone with servers\n"); 134b7579f77SDag-Erling Smørgrav printf(" forward_remove [+i] zone remove forward zone\n"); 135b7579f77SDag-Erling Smørgrav printf(" stub_add [+ip] zone addr.. add stub-zone with servers\n"); 136b7579f77SDag-Erling Smørgrav printf(" stub_remove [+i] zone remove stub zone\n"); 137b7579f77SDag-Erling Smørgrav printf(" +i also do dnssec insecure point\n"); 138b7579f77SDag-Erling Smørgrav printf(" +p set stub to use priming\n"); 139b7579f77SDag-Erling Smørgrav printf(" forward [off | addr ...] without arg show forward setup\n"); 140b7579f77SDag-Erling Smørgrav printf(" or off to turn off root forwarding\n"); 141b7579f77SDag-Erling Smørgrav printf(" or give list of ip addresses\n"); 14209a3aaf3SDag-Erling Smørgrav printf(" ratelimit_list [+a] list ratelimited domains\n"); 1433005e0a3SDag-Erling Smørgrav printf(" ip_ratelimit_list [+a] list ratelimited ip addresses\n"); 14409a3aaf3SDag-Erling Smørgrav printf(" +a list all, also not ratelimited\n"); 1450fb34990SDag-Erling Smørgrav printf(" list_auth_zones list auth zones\n"); 1463005e0a3SDag-Erling Smørgrav printf(" view_list_local_zones view list local-zones in view\n"); 1473005e0a3SDag-Erling Smørgrav printf(" view_list_local_data view list local-data RRs in view\n"); 1483005e0a3SDag-Erling Smørgrav printf(" view_local_zone view name type add local-zone in view\n"); 1493005e0a3SDag-Erling Smørgrav printf(" view_local_zone_remove view name remove local-zone in view\n"); 1503005e0a3SDag-Erling Smørgrav printf(" view_local_data view RR... add local-data in view\n"); 1513005e0a3SDag-Erling Smørgrav printf(" view_local_data_remove view name remove local-data in view\n"); 152b7579f77SDag-Erling Smørgrav printf("Version %s\n", PACKAGE_VERSION); 153b7579f77SDag-Erling Smørgrav printf("BSD licensed, see LICENSE in source package for details.\n"); 154b7579f77SDag-Erling Smørgrav printf("Report bugs to %s\n", PACKAGE_BUGREPORT); 155b7579f77SDag-Erling Smørgrav exit(1); 156b7579f77SDag-Erling Smørgrav } 157b7579f77SDag-Erling Smørgrav 15865b390aaSDag-Erling Smørgrav #ifdef HAVE_SHMGET 15965b390aaSDag-Erling Smørgrav /** what to put on statistics lines between var and value, ": " or "=" */ 16065b390aaSDag-Erling Smørgrav #define SQ "=" 16165b390aaSDag-Erling Smørgrav /** if true, inhibits a lot of =0 lines from the stats output */ 16265b390aaSDag-Erling Smørgrav static const int inhibit_zero = 1; 16365b390aaSDag-Erling Smørgrav /** divide sum of timers to get average */ 16465b390aaSDag-Erling Smørgrav static void 165c7f4d7adSDag-Erling Smørgrav timeval_divide(struct timeval* avg, const struct timeval* sum, long long d) 16665b390aaSDag-Erling Smørgrav { 16765b390aaSDag-Erling Smørgrav #ifndef S_SPLINT_S 16865b390aaSDag-Erling Smørgrav size_t leftover; 16965b390aaSDag-Erling Smørgrav if(d == 0) { 17065b390aaSDag-Erling Smørgrav avg->tv_sec = 0; 17165b390aaSDag-Erling Smørgrav avg->tv_usec = 0; 17265b390aaSDag-Erling Smørgrav return; 17365b390aaSDag-Erling Smørgrav } 17465b390aaSDag-Erling Smørgrav avg->tv_sec = sum->tv_sec / d; 17565b390aaSDag-Erling Smørgrav avg->tv_usec = sum->tv_usec / d; 17665b390aaSDag-Erling Smørgrav /* handle fraction from seconds divide */ 17765b390aaSDag-Erling Smørgrav leftover = sum->tv_sec - avg->tv_sec*d; 17865b390aaSDag-Erling Smørgrav avg->tv_usec += (leftover*1000000)/d; 17965b390aaSDag-Erling Smørgrav #endif 18065b390aaSDag-Erling Smørgrav } 18165b390aaSDag-Erling Smørgrav 18265b390aaSDag-Erling Smørgrav /** print unsigned long stats value */ 18365b390aaSDag-Erling Smørgrav #define PR_UL_NM(str, var) printf("%s."str SQ"%lu\n", nm, (unsigned long)(var)); 18465b390aaSDag-Erling Smørgrav #define PR_UL(str, var) printf(str SQ"%lu\n", (unsigned long)(var)); 18565b390aaSDag-Erling Smørgrav #define PR_UL_SUB(str, nm, var) printf(str".%s"SQ"%lu\n", nm, (unsigned long)(var)); 18665b390aaSDag-Erling Smørgrav #define PR_TIMEVAL(str, var) printf(str SQ ARG_LL "d.%6.6d\n", \ 18765b390aaSDag-Erling Smørgrav (long long)var.tv_sec, (int)var.tv_usec); 188c7f4d7adSDag-Erling Smørgrav #define PR_STATSTIME(str, var) printf(str SQ ARG_LL "d.%6.6d\n", \ 189c7f4d7adSDag-Erling Smørgrav (long long)var ## _sec, (int)var ## _usec); 19065b390aaSDag-Erling Smørgrav #define PR_LL(str, var) printf(str SQ ARG_LL"d\n", (long long)(var)); 19165b390aaSDag-Erling Smørgrav 19265b390aaSDag-Erling Smørgrav /** print stat block */ 193c7f4d7adSDag-Erling Smørgrav static void pr_stats(const char* nm, struct ub_stats_info* s) 19465b390aaSDag-Erling Smørgrav { 195c7f4d7adSDag-Erling Smørgrav struct timeval sumwait, avg; 19665b390aaSDag-Erling Smørgrav PR_UL_NM("num.queries", s->svr.num_queries); 19765b390aaSDag-Erling Smørgrav PR_UL_NM("num.queries_ip_ratelimited", 19865b390aaSDag-Erling Smørgrav s->svr.num_queries_ip_ratelimited); 19965b390aaSDag-Erling Smørgrav PR_UL_NM("num.cachehits", 20065b390aaSDag-Erling Smørgrav s->svr.num_queries - s->svr.num_queries_missed_cache); 20165b390aaSDag-Erling Smørgrav PR_UL_NM("num.cachemiss", s->svr.num_queries_missed_cache); 20265b390aaSDag-Erling Smørgrav PR_UL_NM("num.prefetch", s->svr.num_queries_prefetch); 20365b390aaSDag-Erling Smørgrav PR_UL_NM("num.zero_ttl", s->svr.zero_ttl_responses); 20465b390aaSDag-Erling Smørgrav PR_UL_NM("num.recursivereplies", s->mesh_replies_sent); 20565b390aaSDag-Erling Smørgrav #ifdef USE_DNSCRYPT 20665b390aaSDag-Erling Smørgrav PR_UL_NM("num.dnscrypt.crypted", s->svr.num_query_dnscrypt_crypted); 20765b390aaSDag-Erling Smørgrav PR_UL_NM("num.dnscrypt.cert", s->svr.num_query_dnscrypt_cert); 20865b390aaSDag-Erling Smørgrav PR_UL_NM("num.dnscrypt.cleartext", s->svr.num_query_dnscrypt_cleartext); 20965b390aaSDag-Erling Smørgrav PR_UL_NM("num.dnscrypt.malformed", 21065b390aaSDag-Erling Smørgrav s->svr.num_query_dnscrypt_crypted_malformed); 211971980c3SDag-Erling Smørgrav #endif /* USE_DNSCRYPT */ 21265b390aaSDag-Erling Smørgrav printf("%s.requestlist.avg"SQ"%g\n", nm, 21365b390aaSDag-Erling Smørgrav (s->svr.num_queries_missed_cache+s->svr.num_queries_prefetch)? 21465b390aaSDag-Erling Smørgrav (double)s->svr.sum_query_list_size/ 215c7f4d7adSDag-Erling Smørgrav (double)(s->svr.num_queries_missed_cache+ 21665b390aaSDag-Erling Smørgrav s->svr.num_queries_prefetch) : 0.0); 21765b390aaSDag-Erling Smørgrav PR_UL_NM("requestlist.max", s->svr.max_query_list_size); 21865b390aaSDag-Erling Smørgrav PR_UL_NM("requestlist.overwritten", s->mesh_jostled); 21965b390aaSDag-Erling Smørgrav PR_UL_NM("requestlist.exceeded", s->mesh_dropped); 22065b390aaSDag-Erling Smørgrav PR_UL_NM("requestlist.current.all", s->mesh_num_states); 22165b390aaSDag-Erling Smørgrav PR_UL_NM("requestlist.current.user", s->mesh_num_reply_states); 222c7f4d7adSDag-Erling Smørgrav #ifndef S_SPLINT_S 223c7f4d7adSDag-Erling Smørgrav sumwait.tv_sec = s->mesh_replies_sum_wait_sec; 224c7f4d7adSDag-Erling Smørgrav sumwait.tv_usec = s->mesh_replies_sum_wait_usec; 225c7f4d7adSDag-Erling Smørgrav #endif 226c7f4d7adSDag-Erling Smørgrav timeval_divide(&avg, &sumwait, s->mesh_replies_sent); 22765b390aaSDag-Erling Smørgrav printf("%s.", nm); 22865b390aaSDag-Erling Smørgrav PR_TIMEVAL("recursion.time.avg", avg); 22965b390aaSDag-Erling Smørgrav printf("%s.recursion.time.median"SQ"%g\n", nm, s->mesh_time_median); 23065b390aaSDag-Erling Smørgrav PR_UL_NM("tcpusage", s->svr.tcp_accept_usage); 23165b390aaSDag-Erling Smørgrav } 23265b390aaSDag-Erling Smørgrav 23365b390aaSDag-Erling Smørgrav /** print uptime */ 234c7f4d7adSDag-Erling Smørgrav static void print_uptime(struct ub_shm_stat_info* shm_stat) 23565b390aaSDag-Erling Smørgrav { 236c7f4d7adSDag-Erling Smørgrav PR_STATSTIME("time.now", shm_stat->time.now); 237c7f4d7adSDag-Erling Smørgrav PR_STATSTIME("time.up", shm_stat->time.up); 238c7f4d7adSDag-Erling Smørgrav PR_STATSTIME("time.elapsed", shm_stat->time.elapsed); 23965b390aaSDag-Erling Smørgrav } 24065b390aaSDag-Erling Smørgrav 24165b390aaSDag-Erling Smørgrav /** print memory usage */ 242c7f4d7adSDag-Erling Smørgrav static void print_mem(struct ub_shm_stat_info* shm_stat) 24365b390aaSDag-Erling Smørgrav { 24465b390aaSDag-Erling Smørgrav PR_LL("mem.cache.rrset", shm_stat->mem.rrset); 24565b390aaSDag-Erling Smørgrav PR_LL("mem.cache.message", shm_stat->mem.msg); 246c7f4d7adSDag-Erling Smørgrav PR_LL("mem.mod.iterator", shm_stat->mem.iter); 247c7f4d7adSDag-Erling Smørgrav PR_LL("mem.mod.validator", shm_stat->mem.val); 248c7f4d7adSDag-Erling Smørgrav PR_LL("mem.mod.respip", shm_stat->mem.respip); 24965b390aaSDag-Erling Smørgrav #ifdef CLIENT_SUBNET 250c7f4d7adSDag-Erling Smørgrav PR_LL("mem.mod.subnet", shm_stat->mem.subnet); 251c7f4d7adSDag-Erling Smørgrav #endif 252c7f4d7adSDag-Erling Smørgrav #ifdef USE_IPSECMOD 253c7f4d7adSDag-Erling Smørgrav PR_LL("mem.mod.ipsecmod", shm_stat->mem.ipsecmod); 25465b390aaSDag-Erling Smørgrav #endif 255971980c3SDag-Erling Smørgrav #ifdef USE_DNSCRYPT 256971980c3SDag-Erling Smørgrav PR_LL("mem.cache.dnscrypt_shared_secret", 257971980c3SDag-Erling Smørgrav shm_stat->mem.dnscrypt_shared_secret); 2588a384985SDag-Erling Smørgrav PR_LL("mem.cache.dnscrypt_nonce", 2598a384985SDag-Erling Smørgrav shm_stat->mem.dnscrypt_nonce); 260971980c3SDag-Erling Smørgrav #endif 26165b390aaSDag-Erling Smørgrav } 26265b390aaSDag-Erling Smørgrav 26365b390aaSDag-Erling Smørgrav /** print histogram */ 264c7f4d7adSDag-Erling Smørgrav static void print_hist(struct ub_stats_info* s) 26565b390aaSDag-Erling Smørgrav { 26665b390aaSDag-Erling Smørgrav struct timehist* hist; 26765b390aaSDag-Erling Smørgrav size_t i; 26865b390aaSDag-Erling Smørgrav hist = timehist_setup(); 26965b390aaSDag-Erling Smørgrav if(!hist) 27065b390aaSDag-Erling Smørgrav fatal_exit("out of memory"); 27165b390aaSDag-Erling Smørgrav timehist_import(hist, s->svr.hist, NUM_BUCKETS_HIST); 27265b390aaSDag-Erling Smørgrav for(i=0; i<hist->num; i++) { 27365b390aaSDag-Erling Smørgrav printf("histogram.%6.6d.%6.6d.to.%6.6d.%6.6d=%lu\n", 27465b390aaSDag-Erling Smørgrav (int)hist->buckets[i].lower.tv_sec, 27565b390aaSDag-Erling Smørgrav (int)hist->buckets[i].lower.tv_usec, 27665b390aaSDag-Erling Smørgrav (int)hist->buckets[i].upper.tv_sec, 27765b390aaSDag-Erling Smørgrav (int)hist->buckets[i].upper.tv_usec, 27865b390aaSDag-Erling Smørgrav (unsigned long)hist->buckets[i].count); 27965b390aaSDag-Erling Smørgrav } 28065b390aaSDag-Erling Smørgrav timehist_delete(hist); 28165b390aaSDag-Erling Smørgrav } 28265b390aaSDag-Erling Smørgrav 28365b390aaSDag-Erling Smørgrav /** print extended */ 284c7f4d7adSDag-Erling Smørgrav static void print_extended(struct ub_stats_info* s) 28565b390aaSDag-Erling Smørgrav { 28665b390aaSDag-Erling Smørgrav int i; 28765b390aaSDag-Erling Smørgrav char nm[16]; 28865b390aaSDag-Erling Smørgrav 28965b390aaSDag-Erling Smørgrav /* TYPE */ 290c7f4d7adSDag-Erling Smørgrav for(i=0; i<UB_STATS_QTYPE_NUM; i++) { 29165b390aaSDag-Erling Smørgrav if(inhibit_zero && s->svr.qtype[i] == 0) 29265b390aaSDag-Erling Smørgrav continue; 29365b390aaSDag-Erling Smørgrav sldns_wire2str_type_buf((uint16_t)i, nm, sizeof(nm)); 29465b390aaSDag-Erling Smørgrav PR_UL_SUB("num.query.type", nm, s->svr.qtype[i]); 29565b390aaSDag-Erling Smørgrav } 29665b390aaSDag-Erling Smørgrav if(!inhibit_zero || s->svr.qtype_big) { 29765b390aaSDag-Erling Smørgrav PR_UL("num.query.type.other", s->svr.qtype_big); 29865b390aaSDag-Erling Smørgrav } 29965b390aaSDag-Erling Smørgrav 30065b390aaSDag-Erling Smørgrav /* CLASS */ 301c7f4d7adSDag-Erling Smørgrav for(i=0; i<UB_STATS_QCLASS_NUM; i++) { 30265b390aaSDag-Erling Smørgrav if(inhibit_zero && s->svr.qclass[i] == 0) 30365b390aaSDag-Erling Smørgrav continue; 30465b390aaSDag-Erling Smørgrav sldns_wire2str_class_buf((uint16_t)i, nm, sizeof(nm)); 30565b390aaSDag-Erling Smørgrav PR_UL_SUB("num.query.class", nm, s->svr.qclass[i]); 30665b390aaSDag-Erling Smørgrav } 30765b390aaSDag-Erling Smørgrav if(!inhibit_zero || s->svr.qclass_big) { 30865b390aaSDag-Erling Smørgrav PR_UL("num.query.class.other", s->svr.qclass_big); 30965b390aaSDag-Erling Smørgrav } 31065b390aaSDag-Erling Smørgrav 31165b390aaSDag-Erling Smørgrav /* OPCODE */ 312c7f4d7adSDag-Erling Smørgrav for(i=0; i<UB_STATS_OPCODE_NUM; i++) { 31365b390aaSDag-Erling Smørgrav if(inhibit_zero && s->svr.qopcode[i] == 0) 31465b390aaSDag-Erling Smørgrav continue; 31565b390aaSDag-Erling Smørgrav sldns_wire2str_opcode_buf(i, nm, sizeof(nm)); 31665b390aaSDag-Erling Smørgrav PR_UL_SUB("num.query.opcode", nm, s->svr.qopcode[i]); 31765b390aaSDag-Erling Smørgrav } 31865b390aaSDag-Erling Smørgrav 31965b390aaSDag-Erling Smørgrav /* transport */ 32065b390aaSDag-Erling Smørgrav PR_UL("num.query.tcp", s->svr.qtcp); 32165b390aaSDag-Erling Smørgrav PR_UL("num.query.tcpout", s->svr.qtcp_outgoing); 32265b390aaSDag-Erling Smørgrav PR_UL("num.query.ipv6", s->svr.qipv6); 32365b390aaSDag-Erling Smørgrav 32465b390aaSDag-Erling Smørgrav /* flags */ 32565b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.QR", s->svr.qbit_QR); 32665b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.AA", s->svr.qbit_AA); 32765b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.TC", s->svr.qbit_TC); 32865b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.RD", s->svr.qbit_RD); 32965b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.RA", s->svr.qbit_RA); 33065b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.Z", s->svr.qbit_Z); 33165b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.AD", s->svr.qbit_AD); 33265b390aaSDag-Erling Smørgrav PR_UL("num.query.flags.CD", s->svr.qbit_CD); 33365b390aaSDag-Erling Smørgrav PR_UL("num.query.edns.present", s->svr.qEDNS); 33465b390aaSDag-Erling Smørgrav PR_UL("num.query.edns.DO", s->svr.qEDNS_DO); 33565b390aaSDag-Erling Smørgrav 33665b390aaSDag-Erling Smørgrav /* RCODE */ 337c7f4d7adSDag-Erling Smørgrav for(i=0; i<UB_STATS_RCODE_NUM; i++) { 33865b390aaSDag-Erling Smørgrav /* Always include RCODEs 0-5 */ 33965b390aaSDag-Erling Smørgrav if(inhibit_zero && i > LDNS_RCODE_REFUSED && s->svr.ans_rcode[i] == 0) 34065b390aaSDag-Erling Smørgrav continue; 34165b390aaSDag-Erling Smørgrav sldns_wire2str_rcode_buf(i, nm, sizeof(nm)); 34265b390aaSDag-Erling Smørgrav PR_UL_SUB("num.answer.rcode", nm, s->svr.ans_rcode[i]); 34365b390aaSDag-Erling Smørgrav } 34465b390aaSDag-Erling Smørgrav if(!inhibit_zero || s->svr.ans_rcode_nodata) { 34565b390aaSDag-Erling Smørgrav PR_UL("num.answer.rcode.nodata", s->svr.ans_rcode_nodata); 34665b390aaSDag-Erling Smørgrav } 347971980c3SDag-Erling Smørgrav /* iteration */ 348971980c3SDag-Erling Smørgrav PR_UL("num.query.ratelimited", s->svr.queries_ratelimited); 34965b390aaSDag-Erling Smørgrav /* validation */ 35065b390aaSDag-Erling Smørgrav PR_UL("num.answer.secure", s->svr.ans_secure); 35165b390aaSDag-Erling Smørgrav PR_UL("num.answer.bogus", s->svr.ans_bogus); 35265b390aaSDag-Erling Smørgrav PR_UL("num.rrset.bogus", s->svr.rrset_bogus); 3530fb34990SDag-Erling Smørgrav PR_UL("num.query.aggressive.NOERROR", s->svr.num_neg_cache_noerror); 3540fb34990SDag-Erling Smørgrav PR_UL("num.query.aggressive.NXDOMAIN", s->svr.num_neg_cache_nxdomain); 35565b390aaSDag-Erling Smørgrav /* threat detection */ 35665b390aaSDag-Erling Smørgrav PR_UL("unwanted.queries", s->svr.unwanted_queries); 35765b390aaSDag-Erling Smørgrav PR_UL("unwanted.replies", s->svr.unwanted_replies); 35865b390aaSDag-Erling Smørgrav /* cache counts */ 35965b390aaSDag-Erling Smørgrav PR_UL("msg.cache.count", s->svr.msg_cache_count); 36065b390aaSDag-Erling Smørgrav PR_UL("rrset.cache.count", s->svr.rrset_cache_count); 36165b390aaSDag-Erling Smørgrav PR_UL("infra.cache.count", s->svr.infra_cache_count); 36265b390aaSDag-Erling Smørgrav PR_UL("key.cache.count", s->svr.key_cache_count); 363971980c3SDag-Erling Smørgrav #ifdef USE_DNSCRYPT 364971980c3SDag-Erling Smørgrav PR_UL("dnscrypt_shared_secret.cache.count", 365971980c3SDag-Erling Smørgrav s->svr.shared_secret_cache_count); 366971980c3SDag-Erling Smørgrav PR_UL("num.query.dnscrypt.shared_secret.cachemiss", 367971980c3SDag-Erling Smørgrav s->svr.num_query_dnscrypt_secret_missed_cache); 3688a384985SDag-Erling Smørgrav PR_UL("dnscrypt_nonce.cache.count", s->svr.nonce_cache_count); 3698a384985SDag-Erling Smørgrav PR_UL("num.query.dnscrypt.replay", 3708a384985SDag-Erling Smørgrav s->svr.num_query_dnscrypt_replay); 371971980c3SDag-Erling Smørgrav #endif /* USE_DNSCRYPT */ 3720fb34990SDag-Erling Smørgrav PR_UL("num.query.authzone.up", s->svr.num_query_authzone_up); 3730fb34990SDag-Erling Smørgrav PR_UL("num.query.authzone.down", s->svr.num_query_authzone_down); 37465b390aaSDag-Erling Smørgrav } 37565b390aaSDag-Erling Smørgrav 37665b390aaSDag-Erling Smørgrav /** print statistics out of memory structures */ 377c7f4d7adSDag-Erling Smørgrav static void do_stats_shm(struct config_file* cfg, struct ub_stats_info* stats, 378c7f4d7adSDag-Erling Smørgrav struct ub_shm_stat_info* shm_stat) 37965b390aaSDag-Erling Smørgrav { 38065b390aaSDag-Erling Smørgrav int i; 381971980c3SDag-Erling Smørgrav char nm[32]; 38265b390aaSDag-Erling Smørgrav for(i=0; i<cfg->num_threads; i++) { 38365b390aaSDag-Erling Smørgrav snprintf(nm, sizeof(nm), "thread%d", i); 38465b390aaSDag-Erling Smørgrav pr_stats(nm, &stats[i+1]); 38565b390aaSDag-Erling Smørgrav } 38665b390aaSDag-Erling Smørgrav pr_stats("total", &stats[0]); 38765b390aaSDag-Erling Smørgrav print_uptime(shm_stat); 38865b390aaSDag-Erling Smørgrav if(cfg->stat_extended) { 38965b390aaSDag-Erling Smørgrav print_mem(shm_stat); 39065b390aaSDag-Erling Smørgrav print_hist(stats); 39165b390aaSDag-Erling Smørgrav print_extended(stats); 39265b390aaSDag-Erling Smørgrav } 39365b390aaSDag-Erling Smørgrav } 39465b390aaSDag-Erling Smørgrav #endif /* HAVE_SHMGET */ 39565b390aaSDag-Erling Smørgrav 39665b390aaSDag-Erling Smørgrav /** print statistics from shm memory segment */ 39765b390aaSDag-Erling Smørgrav static void print_stats_shm(const char* cfgfile) 39865b390aaSDag-Erling Smørgrav { 39965b390aaSDag-Erling Smørgrav #ifdef HAVE_SHMGET 40065b390aaSDag-Erling Smørgrav struct config_file* cfg; 401c7f4d7adSDag-Erling Smørgrav struct ub_stats_info* stats; 402c7f4d7adSDag-Erling Smørgrav struct ub_shm_stat_info* shm_stat; 40365b390aaSDag-Erling Smørgrav int id_ctl, id_arr; 40465b390aaSDag-Erling Smørgrav /* read config */ 40565b390aaSDag-Erling Smørgrav if(!(cfg = config_create())) 40665b390aaSDag-Erling Smørgrav fatal_exit("out of memory"); 40765b390aaSDag-Erling Smørgrav if(!config_read(cfg, cfgfile, NULL)) 40865b390aaSDag-Erling Smørgrav fatal_exit("could not read config file"); 40965b390aaSDag-Erling Smørgrav /* get shm segments */ 41065b390aaSDag-Erling Smørgrav id_ctl = shmget(cfg->shm_key, sizeof(int), SHM_R|SHM_W); 41165b390aaSDag-Erling Smørgrav if(id_ctl == -1) { 41265b390aaSDag-Erling Smørgrav fatal_exit("shmget(%d): %s", cfg->shm_key, strerror(errno)); 41365b390aaSDag-Erling Smørgrav } 41465b390aaSDag-Erling Smørgrav id_arr = shmget(cfg->shm_key+1, sizeof(int), SHM_R|SHM_W); 41565b390aaSDag-Erling Smørgrav if(id_arr == -1) { 41665b390aaSDag-Erling Smørgrav fatal_exit("shmget(%d): %s", cfg->shm_key+1, strerror(errno)); 41765b390aaSDag-Erling Smørgrav } 418c7f4d7adSDag-Erling Smørgrav shm_stat = (struct ub_shm_stat_info*)shmat(id_ctl, NULL, 0); 41965b390aaSDag-Erling Smørgrav if(shm_stat == (void*)-1) { 42065b390aaSDag-Erling Smørgrav fatal_exit("shmat(%d): %s", id_ctl, strerror(errno)); 42165b390aaSDag-Erling Smørgrav } 422c7f4d7adSDag-Erling Smørgrav stats = (struct ub_stats_info*)shmat(id_arr, NULL, 0); 42365b390aaSDag-Erling Smørgrav if(stats == (void*)-1) { 42465b390aaSDag-Erling Smørgrav fatal_exit("shmat(%d): %s", id_arr, strerror(errno)); 42565b390aaSDag-Erling Smørgrav } 42665b390aaSDag-Erling Smørgrav 42765b390aaSDag-Erling Smørgrav /* print the stats */ 42865b390aaSDag-Erling Smørgrav do_stats_shm(cfg, stats, shm_stat); 42965b390aaSDag-Erling Smørgrav 43065b390aaSDag-Erling Smørgrav /* shutdown */ 43165b390aaSDag-Erling Smørgrav shmdt(shm_stat); 43265b390aaSDag-Erling Smørgrav shmdt(stats); 43365b390aaSDag-Erling Smørgrav config_delete(cfg); 43465b390aaSDag-Erling Smørgrav #else 43565b390aaSDag-Erling Smørgrav (void)cfgfile; 43665b390aaSDag-Erling Smørgrav #endif /* HAVE_SHMGET */ 43765b390aaSDag-Erling Smørgrav } 43865b390aaSDag-Erling Smørgrav 439b7579f77SDag-Erling Smørgrav /** exit with ssl error */ 440b7579f77SDag-Erling Smørgrav static void ssl_err(const char* s) 441b7579f77SDag-Erling Smørgrav { 442b7579f77SDag-Erling Smørgrav fprintf(stderr, "error: %s\n", s); 443b7579f77SDag-Erling Smørgrav ERR_print_errors_fp(stderr); 444b7579f77SDag-Erling Smørgrav exit(1); 445b7579f77SDag-Erling Smørgrav } 446b7579f77SDag-Erling Smørgrav 447b7579f77SDag-Erling Smørgrav /** setup SSL context */ 448b7579f77SDag-Erling Smørgrav static SSL_CTX* 449b7579f77SDag-Erling Smørgrav setup_ctx(struct config_file* cfg) 450b7579f77SDag-Erling Smørgrav { 451748bd829SDag-Erling Smørgrav char* s_cert=NULL, *c_key=NULL, *c_cert=NULL; 452b7579f77SDag-Erling Smørgrav SSL_CTX* ctx; 453b7579f77SDag-Erling Smørgrav 454*7da0adf7SDag-Erling Smørgrav if(!(options_remote_is_address(cfg) && cfg->control_use_cert)) 455*7da0adf7SDag-Erling Smørgrav return NULL; 456b7579f77SDag-Erling Smørgrav s_cert = fname_after_chroot(cfg->server_cert_file, cfg, 1); 457b7579f77SDag-Erling Smørgrav c_key = fname_after_chroot(cfg->control_key_file, cfg, 1); 458b7579f77SDag-Erling Smørgrav c_cert = fname_after_chroot(cfg->control_cert_file, cfg, 1); 459b7579f77SDag-Erling Smørgrav if(!s_cert || !c_key || !c_cert) 460b7579f77SDag-Erling Smørgrav fatal_exit("out of memory"); 461b7579f77SDag-Erling Smørgrav ctx = SSL_CTX_new(SSLv23_client_method()); 462b7579f77SDag-Erling Smørgrav if(!ctx) 463b7579f77SDag-Erling Smørgrav ssl_err("could not allocate SSL_CTX pointer"); 46405ab2901SDag-Erling Smørgrav if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2) 46505ab2901SDag-Erling Smørgrav != SSL_OP_NO_SSLv2) 466b7579f77SDag-Erling Smørgrav ssl_err("could not set SSL_OP_NO_SSLv2"); 46705ab2901SDag-Erling Smørgrav if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3) 46805ab2901SDag-Erling Smørgrav != SSL_OP_NO_SSLv3) 469ff825849SDag-Erling Smørgrav ssl_err("could not set SSL_OP_NO_SSLv3"); 470b75612f8SDag-Erling Smørgrav if(!SSL_CTX_use_certificate_chain_file(ctx,c_cert) || 471b7579f77SDag-Erling Smørgrav !SSL_CTX_use_PrivateKey_file(ctx,c_key,SSL_FILETYPE_PEM) 472b7579f77SDag-Erling Smørgrav || !SSL_CTX_check_private_key(ctx)) 473b7579f77SDag-Erling Smørgrav ssl_err("Error setting up SSL_CTX client key and cert"); 474b7579f77SDag-Erling Smørgrav if (SSL_CTX_load_verify_locations(ctx, s_cert, NULL) != 1) 475b7579f77SDag-Erling Smørgrav ssl_err("Error setting up SSL_CTX verify, server cert"); 476b7579f77SDag-Erling Smørgrav SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL); 477b7579f77SDag-Erling Smørgrav 478b7579f77SDag-Erling Smørgrav free(s_cert); 479b7579f77SDag-Erling Smørgrav free(c_key); 480b7579f77SDag-Erling Smørgrav free(c_cert); 481b7579f77SDag-Erling Smørgrav return ctx; 482b7579f77SDag-Erling Smørgrav } 483b7579f77SDag-Erling Smørgrav 484b7579f77SDag-Erling Smørgrav /** contact the server with TCP connect */ 485b7579f77SDag-Erling Smørgrav static int 486b7579f77SDag-Erling Smørgrav contact_server(const char* svr, struct config_file* cfg, int statuscmd) 487b7579f77SDag-Erling Smørgrav { 488b7579f77SDag-Erling Smørgrav struct sockaddr_storage addr; 489b7579f77SDag-Erling Smørgrav socklen_t addrlen; 490*7da0adf7SDag-Erling Smørgrav int addrfamily = 0, proto = IPPROTO_TCP; 491*7da0adf7SDag-Erling Smørgrav int fd, useport = 1; 492b7579f77SDag-Erling Smørgrav /* use svr or the first config entry */ 493b7579f77SDag-Erling Smørgrav if(!svr) { 494*7da0adf7SDag-Erling Smørgrav if(cfg->control_ifs.first) { 495*7da0adf7SDag-Erling Smørgrav svr = cfg->control_ifs.first->str; 4963005e0a3SDag-Erling Smørgrav } else if(cfg->do_ip4) { 4973005e0a3SDag-Erling Smørgrav svr = "127.0.0.1"; 4983005e0a3SDag-Erling Smørgrav } else { 4993005e0a3SDag-Erling Smørgrav svr = "::1"; 5003005e0a3SDag-Erling Smørgrav } 501b7579f77SDag-Erling Smørgrav /* config 0 addr (everything), means ask localhost */ 502b7579f77SDag-Erling Smørgrav if(strcmp(svr, "0.0.0.0") == 0) 503b7579f77SDag-Erling Smørgrav svr = "127.0.0.1"; 504b7579f77SDag-Erling Smørgrav else if(strcmp(svr, "::0") == 0 || 505b7579f77SDag-Erling Smørgrav strcmp(svr, "0::0") == 0 || 506b7579f77SDag-Erling Smørgrav strcmp(svr, "0::") == 0 || 507b7579f77SDag-Erling Smørgrav strcmp(svr, "::") == 0) 508b7579f77SDag-Erling Smørgrav svr = "::1"; 509b7579f77SDag-Erling Smørgrav } 510b7579f77SDag-Erling Smørgrav if(strchr(svr, '@')) { 511b7579f77SDag-Erling Smørgrav if(!extstrtoaddr(svr, &addr, &addrlen)) 512b7579f77SDag-Erling Smørgrav fatal_exit("could not parse IP@port: %s", svr); 51331099b50SDag-Erling Smørgrav #ifdef HAVE_SYS_UN_H 51431099b50SDag-Erling Smørgrav } else if(svr[0] == '/') { 5156480faa8SDag-Erling Smørgrav struct sockaddr_un* usock = (struct sockaddr_un *) &addr; 5166480faa8SDag-Erling Smørgrav usock->sun_family = AF_LOCAL; 517748bd829SDag-Erling Smørgrav #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN 518b5663de9SDag-Erling Smørgrav usock->sun_len = (unsigned)sizeof(usock); 519748bd829SDag-Erling Smørgrav #endif 5206480faa8SDag-Erling Smørgrav (void)strlcpy(usock->sun_path, svr, sizeof(usock->sun_path)); 521748bd829SDag-Erling Smørgrav addrlen = (socklen_t)sizeof(struct sockaddr_un); 52231099b50SDag-Erling Smørgrav addrfamily = AF_LOCAL; 523*7da0adf7SDag-Erling Smørgrav useport = 0; 524*7da0adf7SDag-Erling Smørgrav proto = 0; 52531099b50SDag-Erling Smørgrav #endif 526b7579f77SDag-Erling Smørgrav } else { 527b7579f77SDag-Erling Smørgrav if(!ipstrtoaddr(svr, cfg->control_port, &addr, &addrlen)) 528b7579f77SDag-Erling Smørgrav fatal_exit("could not parse IP: %s", svr); 529b7579f77SDag-Erling Smørgrav } 53031099b50SDag-Erling Smørgrav 53131099b50SDag-Erling Smørgrav if(addrfamily == 0) 532*7da0adf7SDag-Erling Smørgrav addrfamily = addr_is_ip6(&addr, addrlen)?PF_INET6:PF_INET; 533*7da0adf7SDag-Erling Smørgrav fd = socket(addrfamily, SOCK_STREAM, proto); 534b7579f77SDag-Erling Smørgrav if(fd == -1) { 535b7579f77SDag-Erling Smørgrav #ifndef USE_WINSOCK 536b7579f77SDag-Erling Smørgrav fatal_exit("socket: %s", strerror(errno)); 537b7579f77SDag-Erling Smørgrav #else 538b7579f77SDag-Erling Smørgrav fatal_exit("socket: %s", wsa_strerror(WSAGetLastError())); 539b7579f77SDag-Erling Smørgrav #endif 540b7579f77SDag-Erling Smørgrav } 541b7579f77SDag-Erling Smørgrav if(connect(fd, (struct sockaddr*)&addr, addrlen) < 0) { 542b7579f77SDag-Erling Smørgrav #ifndef USE_WINSOCK 543*7da0adf7SDag-Erling Smørgrav int err = errno; 544*7da0adf7SDag-Erling Smørgrav if(!useport) log_err("connect: %s for %s", strerror(err), svr); 545*7da0adf7SDag-Erling Smørgrav else log_err_addr("connect", strerror(err), &addr, addrlen); 546*7da0adf7SDag-Erling Smørgrav if(err == ECONNREFUSED && statuscmd) { 547b7579f77SDag-Erling Smørgrav printf("unbound is stopped\n"); 548b7579f77SDag-Erling Smørgrav exit(3); 549b7579f77SDag-Erling Smørgrav } 550b7579f77SDag-Erling Smørgrav #else 551*7da0adf7SDag-Erling Smørgrav int wsaerr = WSAGetLastError(); 552*7da0adf7SDag-Erling Smørgrav if(!useport) log_err("connect: %s for %s", wsa_strerror(wsaerr), svr); 553*7da0adf7SDag-Erling Smørgrav else log_err_addr("connect", wsa_strerror(wsaerr), &addr, addrlen); 554*7da0adf7SDag-Erling Smørgrav if(wsaerr == WSAECONNREFUSED && statuscmd) { 555b7579f77SDag-Erling Smørgrav printf("unbound is stopped\n"); 556b7579f77SDag-Erling Smørgrav exit(3); 557b7579f77SDag-Erling Smørgrav } 558b7579f77SDag-Erling Smørgrav #endif 559b7579f77SDag-Erling Smørgrav exit(1); 560b7579f77SDag-Erling Smørgrav } 561b7579f77SDag-Erling Smørgrav return fd; 562b7579f77SDag-Erling Smørgrav } 563b7579f77SDag-Erling Smørgrav 564b7579f77SDag-Erling Smørgrav /** setup SSL on the connection */ 565b7579f77SDag-Erling Smørgrav static SSL* 566*7da0adf7SDag-Erling Smørgrav setup_ssl(SSL_CTX* ctx, int fd) 567b7579f77SDag-Erling Smørgrav { 568b7579f77SDag-Erling Smørgrav SSL* ssl; 569b7579f77SDag-Erling Smørgrav X509* x; 570b7579f77SDag-Erling Smørgrav int r; 571b7579f77SDag-Erling Smørgrav 572*7da0adf7SDag-Erling Smørgrav if(!ctx) return NULL; 573b7579f77SDag-Erling Smørgrav ssl = SSL_new(ctx); 574b7579f77SDag-Erling Smørgrav if(!ssl) 575b7579f77SDag-Erling Smørgrav ssl_err("could not SSL_new"); 576b7579f77SDag-Erling Smørgrav SSL_set_connect_state(ssl); 577b7579f77SDag-Erling Smørgrav (void)SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY); 578b7579f77SDag-Erling Smørgrav if(!SSL_set_fd(ssl, fd)) 579b7579f77SDag-Erling Smørgrav ssl_err("could not SSL_set_fd"); 580b7579f77SDag-Erling Smørgrav while(1) { 581b7579f77SDag-Erling Smørgrav ERR_clear_error(); 582b7579f77SDag-Erling Smørgrav if( (r=SSL_do_handshake(ssl)) == 1) 583b7579f77SDag-Erling Smørgrav break; 584b7579f77SDag-Erling Smørgrav r = SSL_get_error(ssl, r); 585b7579f77SDag-Erling Smørgrav if(r != SSL_ERROR_WANT_READ && r != SSL_ERROR_WANT_WRITE) 586b7579f77SDag-Erling Smørgrav ssl_err("SSL handshake failed"); 587b7579f77SDag-Erling Smørgrav /* wants to be called again */ 588b7579f77SDag-Erling Smørgrav } 589b7579f77SDag-Erling Smørgrav 590b7579f77SDag-Erling Smørgrav /* check authenticity of server */ 591b7579f77SDag-Erling Smørgrav if(SSL_get_verify_result(ssl) != X509_V_OK) 592b7579f77SDag-Erling Smørgrav ssl_err("SSL verification failed"); 593b7579f77SDag-Erling Smørgrav x = SSL_get_peer_certificate(ssl); 594b7579f77SDag-Erling Smørgrav if(!x) 595b7579f77SDag-Erling Smørgrav ssl_err("Server presented no peer certificate"); 596b7579f77SDag-Erling Smørgrav X509_free(x); 59731099b50SDag-Erling Smørgrav 598b7579f77SDag-Erling Smørgrav return ssl; 599b7579f77SDag-Erling Smørgrav } 600b7579f77SDag-Erling Smørgrav 601*7da0adf7SDag-Erling Smørgrav /** read from ssl or fd, fatalexit on error, 0 EOF, 1 success */ 602*7da0adf7SDag-Erling Smørgrav static int 603*7da0adf7SDag-Erling Smørgrav remote_read(SSL* ssl, int fd, char* buf, size_t len) 604*7da0adf7SDag-Erling Smørgrav { 605*7da0adf7SDag-Erling Smørgrav if(ssl) { 606*7da0adf7SDag-Erling Smørgrav int r; 607*7da0adf7SDag-Erling Smørgrav ERR_clear_error(); 608*7da0adf7SDag-Erling Smørgrav if((r = SSL_read(ssl, buf, (int)len-1)) <= 0) { 609*7da0adf7SDag-Erling Smørgrav if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) { 610*7da0adf7SDag-Erling Smørgrav /* EOF */ 611*7da0adf7SDag-Erling Smørgrav return 0; 612*7da0adf7SDag-Erling Smørgrav } 613*7da0adf7SDag-Erling Smørgrav ssl_err("could not SSL_read"); 614*7da0adf7SDag-Erling Smørgrav } 615*7da0adf7SDag-Erling Smørgrav buf[r] = 0; 616*7da0adf7SDag-Erling Smørgrav } else { 617*7da0adf7SDag-Erling Smørgrav ssize_t rr = recv(fd, buf, len-1, 0); 618*7da0adf7SDag-Erling Smørgrav if(rr <= 0) { 619*7da0adf7SDag-Erling Smørgrav if(rr == 0) { 620*7da0adf7SDag-Erling Smørgrav /* EOF */ 621*7da0adf7SDag-Erling Smørgrav return 0; 622*7da0adf7SDag-Erling Smørgrav } 623*7da0adf7SDag-Erling Smørgrav #ifndef USE_WINSOCK 624*7da0adf7SDag-Erling Smørgrav fatal_exit("could not recv: %s", strerror(errno)); 625*7da0adf7SDag-Erling Smørgrav #else 626*7da0adf7SDag-Erling Smørgrav fatal_exit("could not recv: %s", wsa_strerror(WSAGetLastError())); 627*7da0adf7SDag-Erling Smørgrav #endif 628*7da0adf7SDag-Erling Smørgrav } 629*7da0adf7SDag-Erling Smørgrav buf[rr] = 0; 630*7da0adf7SDag-Erling Smørgrav } 631*7da0adf7SDag-Erling Smørgrav return 1; 632*7da0adf7SDag-Erling Smørgrav } 633*7da0adf7SDag-Erling Smørgrav 634*7da0adf7SDag-Erling Smørgrav /** write to ssl or fd, fatalexit on error */ 635*7da0adf7SDag-Erling Smørgrav static void 636*7da0adf7SDag-Erling Smørgrav remote_write(SSL* ssl, int fd, const char* buf, size_t len) 637*7da0adf7SDag-Erling Smørgrav { 638*7da0adf7SDag-Erling Smørgrav if(ssl) { 639*7da0adf7SDag-Erling Smørgrav if(SSL_write(ssl, buf, (int)len) <= 0) 640*7da0adf7SDag-Erling Smørgrav ssl_err("could not SSL_write"); 641*7da0adf7SDag-Erling Smørgrav } else { 642*7da0adf7SDag-Erling Smørgrav if(send(fd, buf, len, 0) < (ssize_t)len) { 643*7da0adf7SDag-Erling Smørgrav #ifndef USE_WINSOCK 644*7da0adf7SDag-Erling Smørgrav fatal_exit("could not send: %s", strerror(errno)); 645*7da0adf7SDag-Erling Smørgrav #else 646*7da0adf7SDag-Erling Smørgrav fatal_exit("could not send: %s", wsa_strerror(WSAGetLastError())); 647*7da0adf7SDag-Erling Smørgrav #endif 648*7da0adf7SDag-Erling Smørgrav } 649*7da0adf7SDag-Erling Smørgrav } 650*7da0adf7SDag-Erling Smørgrav } 651*7da0adf7SDag-Erling Smørgrav 652b7579f77SDag-Erling Smørgrav /** send stdin to server */ 653b7579f77SDag-Erling Smørgrav static void 654*7da0adf7SDag-Erling Smørgrav send_file(SSL* ssl, int fd, FILE* in, char* buf, size_t sz) 655b7579f77SDag-Erling Smørgrav { 656b7579f77SDag-Erling Smørgrav while(fgets(buf, (int)sz, in)) { 657*7da0adf7SDag-Erling Smørgrav remote_write(ssl, fd, buf, strlen(buf)); 658b7579f77SDag-Erling Smørgrav } 659b7579f77SDag-Erling Smørgrav } 660b7579f77SDag-Erling Smørgrav 661bc892140SDag-Erling Smørgrav /** send end-of-file marker to server */ 662bc892140SDag-Erling Smørgrav static void 663*7da0adf7SDag-Erling Smørgrav send_eof(SSL* ssl, int fd) 664bc892140SDag-Erling Smørgrav { 665bc892140SDag-Erling Smørgrav char e[] = {0x04, 0x0a}; 666*7da0adf7SDag-Erling Smørgrav remote_write(ssl, fd, e, sizeof(e)); 667bc892140SDag-Erling Smørgrav } 668bc892140SDag-Erling Smørgrav 669b7579f77SDag-Erling Smørgrav /** send command and display result */ 670b7579f77SDag-Erling Smørgrav static int 671*7da0adf7SDag-Erling Smørgrav go_cmd(SSL* ssl, int fd, int quiet, int argc, char* argv[]) 672b7579f77SDag-Erling Smørgrav { 673b7579f77SDag-Erling Smørgrav char pre[10]; 674b7579f77SDag-Erling Smørgrav const char* space=" "; 675b7579f77SDag-Erling Smørgrav const char* newline="\n"; 676b7579f77SDag-Erling Smørgrav int was_error = 0, first_line = 1; 677*7da0adf7SDag-Erling Smørgrav int i; 678b7579f77SDag-Erling Smørgrav char buf[1024]; 679b7579f77SDag-Erling Smørgrav snprintf(pre, sizeof(pre), "UBCT%d ", UNBOUND_CONTROL_VERSION); 680*7da0adf7SDag-Erling Smørgrav remote_write(ssl, fd, pre, strlen(pre)); 681b7579f77SDag-Erling Smørgrav for(i=0; i<argc; i++) { 682*7da0adf7SDag-Erling Smørgrav remote_write(ssl, fd, space, strlen(space)); 683*7da0adf7SDag-Erling Smørgrav remote_write(ssl, fd, argv[i], strlen(argv[i])); 684b7579f77SDag-Erling Smørgrav } 685*7da0adf7SDag-Erling Smørgrav remote_write(ssl, fd, newline, strlen(newline)); 686b7579f77SDag-Erling Smørgrav 687b7579f77SDag-Erling Smørgrav if(argc == 1 && strcmp(argv[0], "load_cache") == 0) { 688*7da0adf7SDag-Erling Smørgrav send_file(ssl, fd, stdin, buf, sizeof(buf)); 689b7579f77SDag-Erling Smørgrav } 690bc892140SDag-Erling Smørgrav else if(argc == 1 && (strcmp(argv[0], "local_zones") == 0 || 691bc892140SDag-Erling Smørgrav strcmp(argv[0], "local_zones_remove") == 0 || 692bc892140SDag-Erling Smørgrav strcmp(argv[0], "local_datas") == 0 || 693bc892140SDag-Erling Smørgrav strcmp(argv[0], "local_datas_remove") == 0)) { 694*7da0adf7SDag-Erling Smørgrav send_file(ssl, fd, stdin, buf, sizeof(buf)); 695*7da0adf7SDag-Erling Smørgrav send_eof(ssl, fd); 696bc892140SDag-Erling Smørgrav } 697b7579f77SDag-Erling Smørgrav 698b7579f77SDag-Erling Smørgrav while(1) { 699*7da0adf7SDag-Erling Smørgrav if(remote_read(ssl, fd, buf, sizeof(buf)) == 0) { 700*7da0adf7SDag-Erling Smørgrav break; /* EOF */ 701b7579f77SDag-Erling Smørgrav } 7028ed2b524SDag-Erling Smørgrav if(first_line && strncmp(buf, "error", 5) == 0) { 703b7579f77SDag-Erling Smørgrav printf("%s", buf); 704b7579f77SDag-Erling Smørgrav was_error = 1; 7058ed2b524SDag-Erling Smørgrav } else if (!quiet) 7068ed2b524SDag-Erling Smørgrav printf("%s", buf); 7078ed2b524SDag-Erling Smørgrav 708b7579f77SDag-Erling Smørgrav first_line = 0; 709b7579f77SDag-Erling Smørgrav } 710b7579f77SDag-Erling Smørgrav return was_error; 711b7579f77SDag-Erling Smørgrav } 712b7579f77SDag-Erling Smørgrav 713b7579f77SDag-Erling Smørgrav /** go ahead and read config, contact server and perform command and display */ 714b7579f77SDag-Erling Smørgrav static int 7158ed2b524SDag-Erling Smørgrav go(const char* cfgfile, char* svr, int quiet, int argc, char* argv[]) 716b7579f77SDag-Erling Smørgrav { 717b7579f77SDag-Erling Smørgrav struct config_file* cfg; 718b7579f77SDag-Erling Smørgrav int fd, ret; 719b7579f77SDag-Erling Smørgrav SSL_CTX* ctx; 720b7579f77SDag-Erling Smørgrav SSL* ssl; 721b7579f77SDag-Erling Smørgrav 722b7579f77SDag-Erling Smørgrav /* read config */ 723b7579f77SDag-Erling Smørgrav if(!(cfg = config_create())) 724b7579f77SDag-Erling Smørgrav fatal_exit("out of memory"); 725b7579f77SDag-Erling Smørgrav if(!config_read(cfg, cfgfile, NULL)) 726b7579f77SDag-Erling Smørgrav fatal_exit("could not read config file"); 727b7579f77SDag-Erling Smørgrav if(!cfg->remote_control_enable) 728b7579f77SDag-Erling Smørgrav log_warn("control-enable is 'no' in the config file."); 72905ab2901SDag-Erling Smørgrav #ifdef UB_ON_WINDOWS 73005ab2901SDag-Erling Smørgrav w_config_adjust_directory(cfg); 73105ab2901SDag-Erling Smørgrav #endif 732b7579f77SDag-Erling Smørgrav ctx = setup_ctx(cfg); 733b7579f77SDag-Erling Smørgrav 734b7579f77SDag-Erling Smørgrav /* contact server */ 735b7579f77SDag-Erling Smørgrav fd = contact_server(svr, cfg, argc>0&&strcmp(argv[0],"status")==0); 736*7da0adf7SDag-Erling Smørgrav ssl = setup_ssl(ctx, fd); 737b7579f77SDag-Erling Smørgrav 738b7579f77SDag-Erling Smørgrav /* send command */ 739*7da0adf7SDag-Erling Smørgrav ret = go_cmd(ssl, fd, quiet, argc, argv); 740b7579f77SDag-Erling Smørgrav 741*7da0adf7SDag-Erling Smørgrav if(ssl) SSL_free(ssl); 742b7579f77SDag-Erling Smørgrav #ifndef USE_WINSOCK 743b7579f77SDag-Erling Smørgrav close(fd); 744b7579f77SDag-Erling Smørgrav #else 745b7579f77SDag-Erling Smørgrav closesocket(fd); 746b7579f77SDag-Erling Smørgrav #endif 747*7da0adf7SDag-Erling Smørgrav if(ctx) SSL_CTX_free(ctx); 748b7579f77SDag-Erling Smørgrav config_delete(cfg); 749b7579f77SDag-Erling Smørgrav return ret; 750b7579f77SDag-Erling Smørgrav } 751b7579f77SDag-Erling Smørgrav 752b7579f77SDag-Erling Smørgrav /** getopt global, in case header files fail to declare it. */ 753b7579f77SDag-Erling Smørgrav extern int optind; 754b7579f77SDag-Erling Smørgrav /** getopt global, in case header files fail to declare it. */ 755b7579f77SDag-Erling Smørgrav extern char* optarg; 756b7579f77SDag-Erling Smørgrav 757b7579f77SDag-Erling Smørgrav /** Main routine for unbound-control */ 758b7579f77SDag-Erling Smørgrav int main(int argc, char* argv[]) 759b7579f77SDag-Erling Smørgrav { 760b7579f77SDag-Erling Smørgrav int c, ret; 7618ed2b524SDag-Erling Smørgrav int quiet = 0; 762b7579f77SDag-Erling Smørgrav const char* cfgfile = CONFIGFILE; 763b7579f77SDag-Erling Smørgrav char* svr = NULL; 764b7579f77SDag-Erling Smørgrav #ifdef USE_WINSOCK 765b7579f77SDag-Erling Smørgrav int r; 766b7579f77SDag-Erling Smørgrav WSADATA wsa_data; 767b7579f77SDag-Erling Smørgrav #endif 768b7579f77SDag-Erling Smørgrav #ifdef USE_THREAD_DEBUG 7698a384985SDag-Erling Smørgrav /* stop the file output from unbound-control, overwrites the servers */ 770b7579f77SDag-Erling Smørgrav extern int check_locking_order; 771b7579f77SDag-Erling Smørgrav check_locking_order = 0; 772b7579f77SDag-Erling Smørgrav #endif /* USE_THREAD_DEBUG */ 773b7579f77SDag-Erling Smørgrav log_ident_set("unbound-control"); 774b7579f77SDag-Erling Smørgrav log_init(NULL, 0, NULL); 775b7579f77SDag-Erling Smørgrav checklock_start(); 776b7579f77SDag-Erling Smørgrav #ifdef USE_WINSOCK 777b7579f77SDag-Erling Smørgrav /* use registry config file in preference to compiletime location */ 778b7579f77SDag-Erling Smørgrav if(!(cfgfile=w_lookup_reg_str("Software\\Unbound", "ConfigFile"))) 779b7579f77SDag-Erling Smørgrav cfgfile = CONFIGFILE; 780b7579f77SDag-Erling Smørgrav #endif 78165b390aaSDag-Erling Smørgrav /* parse the options */ 78265b390aaSDag-Erling Smørgrav while( (c=getopt(argc, argv, "c:s:qh")) != -1) { 78365b390aaSDag-Erling Smørgrav switch(c) { 78465b390aaSDag-Erling Smørgrav case 'c': 78565b390aaSDag-Erling Smørgrav cfgfile = optarg; 78665b390aaSDag-Erling Smørgrav break; 78765b390aaSDag-Erling Smørgrav case 's': 78865b390aaSDag-Erling Smørgrav svr = optarg; 78965b390aaSDag-Erling Smørgrav break; 79065b390aaSDag-Erling Smørgrav case 'q': 79165b390aaSDag-Erling Smørgrav quiet = 1; 79265b390aaSDag-Erling Smørgrav break; 79365b390aaSDag-Erling Smørgrav case '?': 79465b390aaSDag-Erling Smørgrav case 'h': 79565b390aaSDag-Erling Smørgrav default: 79665b390aaSDag-Erling Smørgrav usage(); 79765b390aaSDag-Erling Smørgrav } 79865b390aaSDag-Erling Smørgrav } 79965b390aaSDag-Erling Smørgrav argc -= optind; 80065b390aaSDag-Erling Smørgrav argv += optind; 80165b390aaSDag-Erling Smørgrav if(argc == 0) 80265b390aaSDag-Erling Smørgrav usage(); 80365b390aaSDag-Erling Smørgrav if(argc >= 1 && strcmp(argv[0], "start")==0) { 80465b390aaSDag-Erling Smørgrav if(execlp("unbound", "unbound", "-c", cfgfile, 80565b390aaSDag-Erling Smørgrav (char*)NULL) < 0) { 80665b390aaSDag-Erling Smørgrav fatal_exit("could not exec unbound: %s", 80765b390aaSDag-Erling Smørgrav strerror(errno)); 80865b390aaSDag-Erling Smørgrav } 80965b390aaSDag-Erling Smørgrav } 81065b390aaSDag-Erling Smørgrav if(argc >= 1 && strcmp(argv[0], "stats_shm")==0) { 81165b390aaSDag-Erling Smørgrav print_stats_shm(cfgfile); 81265b390aaSDag-Erling Smørgrav return 0; 81365b390aaSDag-Erling Smørgrav } 81465b390aaSDag-Erling Smørgrav 81565b390aaSDag-Erling Smørgrav #ifdef USE_WINSOCK 81665b390aaSDag-Erling Smørgrav if((r = WSAStartup(MAKEWORD(2,2), &wsa_data)) != 0) 81765b390aaSDag-Erling Smørgrav fatal_exit("WSAStartup failed: %s", wsa_strerror(r)); 81865b390aaSDag-Erling Smørgrav #endif 819b7579f77SDag-Erling Smørgrav 820b5663de9SDag-Erling Smørgrav #ifdef HAVE_ERR_LOAD_CRYPTO_STRINGS 821b7579f77SDag-Erling Smørgrav ERR_load_crypto_strings(); 822b5663de9SDag-Erling Smørgrav #endif 823971980c3SDag-Erling Smørgrav #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL) 824b7579f77SDag-Erling Smørgrav ERR_load_SSL_strings(); 825971980c3SDag-Erling Smørgrav #endif 826b5663de9SDag-Erling Smørgrav #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_CRYPTO) 827b7579f77SDag-Erling Smørgrav OpenSSL_add_all_algorithms(); 828b5663de9SDag-Erling Smørgrav #else 829b5663de9SDag-Erling Smørgrav OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS 830b5663de9SDag-Erling Smørgrav | OPENSSL_INIT_ADD_ALL_DIGESTS 831b5663de9SDag-Erling Smørgrav | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); 832b5663de9SDag-Erling Smørgrav #endif 833b5663de9SDag-Erling Smørgrav #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL) 834b7579f77SDag-Erling Smørgrav (void)SSL_library_init(); 835b5663de9SDag-Erling Smørgrav #else 836971980c3SDag-Erling Smørgrav (void)OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL); 837b5663de9SDag-Erling Smørgrav #endif 838b7579f77SDag-Erling Smørgrav 839b7579f77SDag-Erling Smørgrav if(!RAND_status()) { 840b7579f77SDag-Erling Smørgrav /* try to seed it */ 841b7579f77SDag-Erling Smørgrav unsigned char buf[256]; 8428ed2b524SDag-Erling Smørgrav unsigned int seed=(unsigned)time(NULL) ^ (unsigned)getpid(); 8438ed2b524SDag-Erling Smørgrav unsigned int v = seed; 844b7579f77SDag-Erling Smørgrav size_t i; 845b7579f77SDag-Erling Smørgrav for(i=0; i<256/sizeof(v); i++) { 846b7579f77SDag-Erling Smørgrav memmove(buf+i*sizeof(v), &v, sizeof(v)); 847b7579f77SDag-Erling Smørgrav v = v*seed + (unsigned int)i; 848b7579f77SDag-Erling Smørgrav } 849b7579f77SDag-Erling Smørgrav RAND_seed(buf, 256); 850b7579f77SDag-Erling Smørgrav log_warn("no entropy, seeding openssl PRNG with time\n"); 851b7579f77SDag-Erling Smørgrav } 852b7579f77SDag-Erling Smørgrav 8538ed2b524SDag-Erling Smørgrav ret = go(cfgfile, svr, quiet, argc, argv); 854b7579f77SDag-Erling Smørgrav 855b7579f77SDag-Erling Smørgrav #ifdef USE_WINSOCK 856b7579f77SDag-Erling Smørgrav WSACleanup(); 857b7579f77SDag-Erling Smørgrav #endif 858b7579f77SDag-Erling Smørgrav checklock_stop(); 859b7579f77SDag-Erling Smørgrav return ret; 860b7579f77SDag-Erling Smørgrav } 861