2 * checkconf/unbound-control.c - remote control utility for unbound.
4 * Copyright (c) 2008, NLnet Labs. All rights reserved.
6 * This software is open source.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * Redistributions of source code must retain the above copyright notice,
13 * this list of conditions and the following disclaimer.
15 * Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * Neither the name of the NLNET LABS nor the names of its contributors may
20 * be used to endorse or promote products derived from this software without
21 * specific prior written permission.
23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
27 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
29 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
30 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
31 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
32 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
33 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
39 * The remote control utility contacts the unbound server over ssl and
40 * sends the command, receives the answer, and displays the result
41 * from the commandline.
48 #ifdef HAVE_OPENSSL_SSL_H
49 #include <openssl/ssl.h>
51 #ifdef HAVE_OPENSSL_ERR_H
52 #include <openssl/err.h>
54 #ifdef HAVE_OPENSSL_RAND_H
55 #include <openssl/rand.h>
58 #include "util/config_file.h"
59 #include "util/locks.h"
60 #include "util/net_help.h"
61 #include "util/shm_side/shm_main.h"
62 #include "daemon/stats.h"
63 #include "sldns/wire2str.h"
64 #include "sldns/pkthdr.h"
76 /** Give unbound-control usage, and exit (1). */
80 printf("Usage: unbound-control [options] command\n");
81 printf(" Remote control utility for unbound server.\n");
83 printf(" -c file config file, default is %s\n", CONFIGFILE);
84 printf(" -s ip[@port] server address, if omitted config is used.\n");
85 printf(" -q quiet (don't print anything if it works ok).\n");
86 printf(" -h show this usage help.\n");
87 printf("Commands:\n");
88 printf(" start start server; runs unbound(8)\n");
89 printf(" stop stops the server\n");
90 printf(" reload reloads the server\n");
91 printf(" (this flushes data, stats, requestlist)\n");
92 printf(" stats print statistics\n");
93 printf(" stats_noreset peek at statistics\n");
95 printf(" stats_shm print statistics using shm\n");
97 printf(" status display status of server\n");
98 printf(" verbosity <number> change logging detail\n");
99 printf(" log_reopen close and open the logfile\n");
100 printf(" local_zone <name> <type> add new local zone\n");
101 printf(" local_zone_remove <name> remove local zone and its contents\n");
102 printf(" local_data <RR data...> add local data, for example\n");
103 printf(" local_data www.example.com A 192.0.2.1\n");
104 printf(" local_data_remove <name> remove local RR data from name\n");
105 printf(" local_zones, local_zones_remove, local_datas, local_datas_remove\n");
106 printf(" same, but read list from stdin\n");
107 printf(" (one entry per line).\n");
108 printf(" dump_cache print cache to stdout\n");
109 printf(" load_cache load cache from stdin\n");
110 printf(" lookup <name> print nameservers for name\n");
111 printf(" flush <name> flushes common types for name from cache\n");
112 printf(" types: A, AAAA, MX, PTR, NS,\n");
113 printf(" SOA, CNAME, DNAME, SRV, NAPTR\n");
114 printf(" flush_type <name> <type> flush name, type from cache\n");
115 printf(" flush_zone <name> flush everything at or under name\n");
116 printf(" from rr and dnssec caches\n");
117 printf(" flush_bogus flush all bogus data\n");
118 printf(" flush_negative flush all negative data\n");
119 printf(" flush_stats flush statistics, make zero\n");
120 printf(" flush_requestlist drop queries that are worked on\n");
121 printf(" dump_requestlist show what is worked on by first thread\n");
122 printf(" flush_infra [all | ip] remove ping, edns for one IP or all\n");
123 printf(" dump_infra show ping and edns entries\n");
124 printf(" set_option opt: val set option to value, no reload\n");
125 printf(" get_option opt get option value\n");
126 printf(" list_stubs list stub-zones and root hints in use\n");
127 printf(" list_forwards list forward-zones in use\n");
128 printf(" list_insecure list domain-insecure zones\n");
129 printf(" list_local_zones list local-zones in use\n");
130 printf(" list_local_data list local-data RRs in use\n");
131 printf(" insecure_add zone add domain-insecure zone\n");
132 printf(" insecure_remove zone remove domain-insecure zone\n");
133 printf(" forward_add [+i] zone addr.. add forward-zone with servers\n");
134 printf(" forward_remove [+i] zone remove forward zone\n");
135 printf(" stub_add [+ip] zone addr.. add stub-zone with servers\n");
136 printf(" stub_remove [+i] zone remove stub zone\n");
137 printf(" +i also do dnssec insecure point\n");
138 printf(" +p set stub to use priming\n");
139 printf(" forward [off | addr ...] without arg show forward setup\n");
140 printf(" or off to turn off root forwarding\n");
141 printf(" or give list of ip addresses\n");
142 printf(" ratelimit_list [+a] list ratelimited domains\n");
143 printf(" ip_ratelimit_list [+a] list ratelimited ip addresses\n");
144 printf(" +a list all, also not ratelimited\n");
145 printf(" view_list_local_zones view list local-zones in view\n");
146 printf(" view_list_local_data view list local-data RRs in view\n");
147 printf(" view_local_zone view name type add local-zone in view\n");
148 printf(" view_local_zone_remove view name remove local-zone in view\n");
149 printf(" view_local_data view RR... add local-data in view\n");
150 printf(" view_local_data_remove view name remove local-data in view\n");
151 printf("Version %s\n", PACKAGE_VERSION);
152 printf("BSD licensed, see LICENSE in source package for details.\n");
153 printf("Report bugs to %s\n", PACKAGE_BUGREPORT);
158 /** what to put on statistics lines between var and value, ": " or "=" */
160 /** if true, inhibits a lot of =0 lines from the stats output */
161 static const int inhibit_zero = 1;
162 /** divide sum of timers to get average */
164 timeval_divide(struct timeval* avg, const struct timeval* sum, size_t d)
173 avg->tv_sec = sum->tv_sec / d;
174 avg->tv_usec = sum->tv_usec / d;
175 /* handle fraction from seconds divide */
176 leftover = sum->tv_sec - avg->tv_sec*d;
177 avg->tv_usec += (leftover*1000000)/d;
181 /** print unsigned long stats value */
182 #define PR_UL_NM(str, var) printf("%s."str SQ"%lu\n", nm, (unsigned long)(var));
183 #define PR_UL(str, var) printf(str SQ"%lu\n", (unsigned long)(var));
184 #define PR_UL_SUB(str, nm, var) printf(str".%s"SQ"%lu\n", nm, (unsigned long)(var));
185 #define PR_TIMEVAL(str, var) printf(str SQ ARG_LL "d.%6.6d\n", \
186 (long long)var.tv_sec, (int)var.tv_usec);
187 #define PR_LL(str, var) printf(str SQ ARG_LL"d\n", (long long)(var));
189 /** print stat block */
190 static void pr_stats(const char* nm, struct stats_info* s)
193 PR_UL_NM("num.queries", s->svr.num_queries);
194 PR_UL_NM("num.queries_ip_ratelimited",
195 s->svr.num_queries_ip_ratelimited);
196 PR_UL_NM("num.cachehits",
197 s->svr.num_queries - s->svr.num_queries_missed_cache);
198 PR_UL_NM("num.cachemiss", s->svr.num_queries_missed_cache);
199 PR_UL_NM("num.prefetch", s->svr.num_queries_prefetch);
200 PR_UL_NM("num.zero_ttl", s->svr.zero_ttl_responses);
201 PR_UL_NM("num.recursivereplies", s->mesh_replies_sent);
203 PR_UL_NM("num.dnscrypt.crypted", s->svr.num_query_dnscrypt_crypted);
204 PR_UL_NM("num.dnscrypt.cert", s->svr.num_query_dnscrypt_cert);
205 PR_UL_NM("num.dnscrypt.cleartext", s->svr.num_query_dnscrypt_cleartext);
206 PR_UL_NM("num.dnscrypt.malformed",
207 s->svr.num_query_dnscrypt_crypted_malformed);
209 printf("%s.requestlist.avg"SQ"%g\n", nm,
210 (s->svr.num_queries_missed_cache+s->svr.num_queries_prefetch)?
211 (double)s->svr.sum_query_list_size/
212 (s->svr.num_queries_missed_cache+
213 s->svr.num_queries_prefetch) : 0.0);
214 PR_UL_NM("requestlist.max", s->svr.max_query_list_size);
215 PR_UL_NM("requestlist.overwritten", s->mesh_jostled);
216 PR_UL_NM("requestlist.exceeded", s->mesh_dropped);
217 PR_UL_NM("requestlist.current.all", s->mesh_num_states);
218 PR_UL_NM("requestlist.current.user", s->mesh_num_reply_states);
219 timeval_divide(&avg, &s->mesh_replies_sum_wait, s->mesh_replies_sent);
221 PR_TIMEVAL("recursion.time.avg", avg);
222 printf("%s.recursion.time.median"SQ"%g\n", nm, s->mesh_time_median);
223 PR_UL_NM("tcpusage", s->svr.tcp_accept_usage);
227 static void print_uptime(struct shm_stat_info* shm_stat)
229 PR_TIMEVAL("time.now", shm_stat->time.now);
230 PR_TIMEVAL("time.up", shm_stat->time.up);
231 PR_TIMEVAL("time.elapsed", shm_stat->time.elapsed);
234 /** print memory usage */
235 static void print_mem(struct shm_stat_info* shm_stat)
237 PR_LL("mem.cache.rrset", shm_stat->mem.rrset);
238 PR_LL("mem.cache.message", shm_stat->mem.msg);
239 PR_LL("mem.cache.iterator", shm_stat->mem.iter);
240 PR_LL("mem.cache.validator", shm_stat->mem.val);
242 PR_LL("mem.cache.subnet", shm_stat->mem.subnet);
246 /** print histogram */
247 static void print_hist(struct stats_info* s)
249 struct timehist* hist;
251 hist = timehist_setup();
253 fatal_exit("out of memory");
254 timehist_import(hist, s->svr.hist, NUM_BUCKETS_HIST);
255 for(i=0; i<hist->num; i++) {
256 printf("histogram.%6.6d.%6.6d.to.%6.6d.%6.6d=%lu\n",
257 (int)hist->buckets[i].lower.tv_sec,
258 (int)hist->buckets[i].lower.tv_usec,
259 (int)hist->buckets[i].upper.tv_sec,
260 (int)hist->buckets[i].upper.tv_usec,
261 (unsigned long)hist->buckets[i].count);
263 timehist_delete(hist);
266 /** print extended */
267 static void print_extended(struct stats_info* s)
273 for(i=0; i<STATS_QTYPE_NUM; i++) {
274 if(inhibit_zero && s->svr.qtype[i] == 0)
276 sldns_wire2str_type_buf((uint16_t)i, nm, sizeof(nm));
277 PR_UL_SUB("num.query.type", nm, s->svr.qtype[i]);
279 if(!inhibit_zero || s->svr.qtype_big) {
280 PR_UL("num.query.type.other", s->svr.qtype_big);
284 for(i=0; i<STATS_QCLASS_NUM; i++) {
285 if(inhibit_zero && s->svr.qclass[i] == 0)
287 sldns_wire2str_class_buf((uint16_t)i, nm, sizeof(nm));
288 PR_UL_SUB("num.query.class", nm, s->svr.qclass[i]);
290 if(!inhibit_zero || s->svr.qclass_big) {
291 PR_UL("num.query.class.other", s->svr.qclass_big);
295 for(i=0; i<STATS_OPCODE_NUM; i++) {
296 if(inhibit_zero && s->svr.qopcode[i] == 0)
298 sldns_wire2str_opcode_buf(i, nm, sizeof(nm));
299 PR_UL_SUB("num.query.opcode", nm, s->svr.qopcode[i]);
303 PR_UL("num.query.tcp", s->svr.qtcp);
304 PR_UL("num.query.tcpout", s->svr.qtcp_outgoing);
305 PR_UL("num.query.ipv6", s->svr.qipv6);
308 PR_UL("num.query.flags.QR", s->svr.qbit_QR);
309 PR_UL("num.query.flags.AA", s->svr.qbit_AA);
310 PR_UL("num.query.flags.TC", s->svr.qbit_TC);
311 PR_UL("num.query.flags.RD", s->svr.qbit_RD);
312 PR_UL("num.query.flags.RA", s->svr.qbit_RA);
313 PR_UL("num.query.flags.Z", s->svr.qbit_Z);
314 PR_UL("num.query.flags.AD", s->svr.qbit_AD);
315 PR_UL("num.query.flags.CD", s->svr.qbit_CD);
316 PR_UL("num.query.edns.present", s->svr.qEDNS);
317 PR_UL("num.query.edns.DO", s->svr.qEDNS_DO);
320 for(i=0; i<STATS_RCODE_NUM; i++) {
321 /* Always include RCODEs 0-5 */
322 if(inhibit_zero && i > LDNS_RCODE_REFUSED && s->svr.ans_rcode[i] == 0)
324 sldns_wire2str_rcode_buf(i, nm, sizeof(nm));
325 PR_UL_SUB("num.answer.rcode", nm, s->svr.ans_rcode[i]);
327 if(!inhibit_zero || s->svr.ans_rcode_nodata) {
328 PR_UL("num.answer.rcode.nodata", s->svr.ans_rcode_nodata);
331 PR_UL("num.answer.secure", s->svr.ans_secure);
332 PR_UL("num.answer.bogus", s->svr.ans_bogus);
333 PR_UL("num.rrset.bogus", s->svr.rrset_bogus);
334 /* threat detection */
335 PR_UL("unwanted.queries", s->svr.unwanted_queries);
336 PR_UL("unwanted.replies", s->svr.unwanted_replies);
338 PR_UL("msg.cache.count", s->svr.msg_cache_count);
339 PR_UL("rrset.cache.count", s->svr.rrset_cache_count);
340 PR_UL("infra.cache.count", s->svr.infra_cache_count);
341 PR_UL("key.cache.count", s->svr.key_cache_count);
344 /** print statistics out of memory structures */
345 static void do_stats_shm(struct config_file* cfg, struct stats_info* stats,
346 struct shm_stat_info* shm_stat)
350 for(i=0; i<cfg->num_threads; i++) {
351 snprintf(nm, sizeof(nm), "thread%d", i);
352 pr_stats(nm, &stats[i+1]);
354 pr_stats("total", &stats[0]);
355 print_uptime(shm_stat);
356 if(cfg->stat_extended) {
359 print_extended(stats);
362 #endif /* HAVE_SHMGET */
364 /** print statistics from shm memory segment */
365 static void print_stats_shm(const char* cfgfile)
368 struct config_file* cfg;
369 struct stats_info* stats;
370 struct shm_stat_info* shm_stat;
373 if(!(cfg = config_create()))
374 fatal_exit("out of memory");
375 if(!config_read(cfg, cfgfile, NULL))
376 fatal_exit("could not read config file");
377 /* get shm segments */
378 id_ctl = shmget(cfg->shm_key, sizeof(int), SHM_R|SHM_W);
380 fatal_exit("shmget(%d): %s", cfg->shm_key, strerror(errno));
382 id_arr = shmget(cfg->shm_key+1, sizeof(int), SHM_R|SHM_W);
384 fatal_exit("shmget(%d): %s", cfg->shm_key+1, strerror(errno));
386 shm_stat = (struct shm_stat_info*)shmat(id_ctl, NULL, 0);
387 if(shm_stat == (void*)-1) {
388 fatal_exit("shmat(%d): %s", id_ctl, strerror(errno));
390 stats = (struct stats_info*)shmat(id_arr, NULL, 0);
391 if(stats == (void*)-1) {
392 fatal_exit("shmat(%d): %s", id_arr, strerror(errno));
395 /* print the stats */
396 do_stats_shm(cfg, stats, shm_stat);
404 #endif /* HAVE_SHMGET */
407 /** exit with ssl error */
408 static void ssl_err(const char* s)
410 fprintf(stderr, "error: %s\n", s);
411 ERR_print_errors_fp(stderr);
415 /** setup SSL context */
417 setup_ctx(struct config_file* cfg)
419 char* s_cert=NULL, *c_key=NULL, *c_cert=NULL;
422 if(cfg->remote_control_use_cert) {
423 s_cert = fname_after_chroot(cfg->server_cert_file, cfg, 1);
424 c_key = fname_after_chroot(cfg->control_key_file, cfg, 1);
425 c_cert = fname_after_chroot(cfg->control_cert_file, cfg, 1);
426 if(!s_cert || !c_key || !c_cert)
427 fatal_exit("out of memory");
429 ctx = SSL_CTX_new(SSLv23_client_method());
431 ssl_err("could not allocate SSL_CTX pointer");
432 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2)
434 ssl_err("could not set SSL_OP_NO_SSLv2");
435 if(cfg->remote_control_use_cert) {
436 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3)
438 ssl_err("could not set SSL_OP_NO_SSLv3");
439 if(!SSL_CTX_use_certificate_chain_file(ctx,c_cert) ||
440 !SSL_CTX_use_PrivateKey_file(ctx,c_key,SSL_FILETYPE_PEM)
441 || !SSL_CTX_check_private_key(ctx))
442 ssl_err("Error setting up SSL_CTX client key and cert");
443 if (SSL_CTX_load_verify_locations(ctx, s_cert, NULL) != 1)
444 ssl_err("Error setting up SSL_CTX verify, server cert");
445 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL);
451 /* Use ciphers that don't require authentication */
452 #ifdef HAVE_SSL_CTX_SET_SECURITY_LEVEL
453 SSL_CTX_set_security_level(ctx, 0);
455 if(!SSL_CTX_set_cipher_list(ctx, "aNULL, eNULL"))
456 ssl_err("Error setting NULL cipher!");
461 /** contact the server with TCP connect */
463 contact_server(const char* svr, struct config_file* cfg, int statuscmd)
465 struct sockaddr_storage addr;
469 /* use svr or the first config entry */
471 if(cfg->control_ifs) {
472 svr = cfg->control_ifs->str;
473 } else if(cfg->do_ip4) {
478 /* config 0 addr (everything), means ask localhost */
479 if(strcmp(svr, "0.0.0.0") == 0)
481 else if(strcmp(svr, "::0") == 0 ||
482 strcmp(svr, "0::0") == 0 ||
483 strcmp(svr, "0::") == 0 ||
484 strcmp(svr, "::") == 0)
487 if(strchr(svr, '@')) {
488 if(!extstrtoaddr(svr, &addr, &addrlen))
489 fatal_exit("could not parse IP@port: %s", svr);
491 } else if(svr[0] == '/') {
492 struct sockaddr_un* usock = (struct sockaddr_un *) &addr;
493 usock->sun_family = AF_LOCAL;
494 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN
495 usock->sun_len = (unsigned)sizeof(usock);
497 (void)strlcpy(usock->sun_path, svr, sizeof(usock->sun_path));
498 addrlen = (socklen_t)sizeof(struct sockaddr_un);
499 addrfamily = AF_LOCAL;
502 if(!ipstrtoaddr(svr, cfg->control_port, &addr, &addrlen))
503 fatal_exit("could not parse IP: %s", svr);
507 addrfamily = addr_is_ip6(&addr, addrlen)?AF_INET6:AF_INET;
508 fd = socket(addrfamily, SOCK_STREAM, 0);
511 fatal_exit("socket: %s", strerror(errno));
513 fatal_exit("socket: %s", wsa_strerror(WSAGetLastError()));
516 if(connect(fd, (struct sockaddr*)&addr, addrlen) < 0) {
518 log_err_addr("connect", strerror(errno), &addr, addrlen);
519 if(errno == ECONNREFUSED && statuscmd) {
520 printf("unbound is stopped\n");
524 log_err_addr("connect", wsa_strerror(WSAGetLastError()), &addr, addrlen);
525 if(WSAGetLastError() == WSAECONNREFUSED && statuscmd) {
526 printf("unbound is stopped\n");
535 /** setup SSL on the connection */
537 setup_ssl(SSL_CTX* ctx, int fd, struct config_file* cfg)
545 ssl_err("could not SSL_new");
546 SSL_set_connect_state(ssl);
547 (void)SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY);
548 if(!SSL_set_fd(ssl, fd))
549 ssl_err("could not SSL_set_fd");
552 if( (r=SSL_do_handshake(ssl)) == 1)
554 r = SSL_get_error(ssl, r);
555 if(r != SSL_ERROR_WANT_READ && r != SSL_ERROR_WANT_WRITE)
556 ssl_err("SSL handshake failed");
557 /* wants to be called again */
560 /* check authenticity of server */
561 if(SSL_get_verify_result(ssl) != X509_V_OK)
562 ssl_err("SSL verification failed");
563 if(cfg->remote_control_use_cert) {
564 x = SSL_get_peer_certificate(ssl);
566 ssl_err("Server presented no peer certificate");
573 /** send stdin to server */
575 send_file(SSL* ssl, FILE* in, char* buf, size_t sz)
577 while(fgets(buf, (int)sz, in)) {
578 if(SSL_write(ssl, buf, (int)strlen(buf)) <= 0)
579 ssl_err("could not SSL_write contents");
583 /** send end-of-file marker to server */
587 char e[] = {0x04, 0x0a};
588 if(SSL_write(ssl, e, (int)sizeof(e)) <= 0)
589 ssl_err("could not SSL_write end-of-file marker");
592 /** send command and display result */
594 go_cmd(SSL* ssl, int quiet, int argc, char* argv[])
597 const char* space=" ";
598 const char* newline="\n";
599 int was_error = 0, first_line = 1;
602 snprintf(pre, sizeof(pre), "UBCT%d ", UNBOUND_CONTROL_VERSION);
603 if(SSL_write(ssl, pre, (int)strlen(pre)) <= 0)
604 ssl_err("could not SSL_write");
605 for(i=0; i<argc; i++) {
606 if(SSL_write(ssl, space, (int)strlen(space)) <= 0)
607 ssl_err("could not SSL_write");
608 if(SSL_write(ssl, argv[i], (int)strlen(argv[i])) <= 0)
609 ssl_err("could not SSL_write");
611 if(SSL_write(ssl, newline, (int)strlen(newline)) <= 0)
612 ssl_err("could not SSL_write");
614 if(argc == 1 && strcmp(argv[0], "load_cache") == 0) {
615 send_file(ssl, stdin, buf, sizeof(buf));
617 else if(argc == 1 && (strcmp(argv[0], "local_zones") == 0 ||
618 strcmp(argv[0], "local_zones_remove") == 0 ||
619 strcmp(argv[0], "local_datas") == 0 ||
620 strcmp(argv[0], "local_datas_remove") == 0)) {
621 send_file(ssl, stdin, buf, sizeof(buf));
627 if((r = SSL_read(ssl, buf, (int)sizeof(buf)-1)) <= 0) {
628 if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) {
632 ssl_err("could not SSL_read");
635 if(first_line && strncmp(buf, "error", 5) == 0) {
646 /** go ahead and read config, contact server and perform command and display */
648 go(const char* cfgfile, char* svr, int quiet, int argc, char* argv[])
650 struct config_file* cfg;
656 if(!(cfg = config_create()))
657 fatal_exit("out of memory");
658 if(!config_read(cfg, cfgfile, NULL))
659 fatal_exit("could not read config file");
660 if(!cfg->remote_control_enable)
661 log_warn("control-enable is 'no' in the config file.");
663 w_config_adjust_directory(cfg);
665 ctx = setup_ctx(cfg);
668 fd = contact_server(svr, cfg, argc>0&&strcmp(argv[0],"status")==0);
669 ssl = setup_ssl(ctx, fd, cfg);
672 ret = go_cmd(ssl, quiet, argc, argv);
685 /** getopt global, in case header files fail to declare it. */
687 /** getopt global, in case header files fail to declare it. */
690 /** Main routine for unbound-control */
691 int main(int argc, char* argv[])
695 const char* cfgfile = CONFIGFILE;
701 #ifdef USE_THREAD_DEBUG
702 /* stop the file output from unbound-control, overwites the servers */
703 extern int check_locking_order;
704 check_locking_order = 0;
705 #endif /* USE_THREAD_DEBUG */
706 log_ident_set("unbound-control");
707 log_init(NULL, 0, NULL);
710 /* use registry config file in preference to compiletime location */
711 if(!(cfgfile=w_lookup_reg_str("Software\\Unbound", "ConfigFile")))
712 cfgfile = CONFIGFILE;
714 /* parse the options */
715 while( (c=getopt(argc, argv, "c:s:qh")) != -1) {
736 if(argc >= 1 && strcmp(argv[0], "start")==0) {
737 if(execlp("unbound", "unbound", "-c", cfgfile,
739 fatal_exit("could not exec unbound: %s",
743 if(argc >= 1 && strcmp(argv[0], "stats_shm")==0) {
744 print_stats_shm(cfgfile);
749 if((r = WSAStartup(MAKEWORD(2,2), &wsa_data)) != 0)
750 fatal_exit("WSAStartup failed: %s", wsa_strerror(r));
753 #ifdef HAVE_ERR_LOAD_CRYPTO_STRINGS
754 ERR_load_crypto_strings();
756 ERR_load_SSL_strings();
757 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_CRYPTO)
758 OpenSSL_add_all_algorithms();
760 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS
761 | OPENSSL_INIT_ADD_ALL_DIGESTS
762 | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL);
764 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL)
765 (void)SSL_library_init();
767 (void)OPENSSL_init_ssl(0, NULL);
772 unsigned char buf[256];
773 unsigned int seed=(unsigned)time(NULL) ^ (unsigned)getpid();
774 unsigned int v = seed;
776 for(i=0; i<256/sizeof(v); i++) {
777 memmove(buf+i*sizeof(v), &v, sizeof(v));
778 v = v*seed + (unsigned int)i;
781 log_warn("no entropy, seeding openssl PRNG with time\n");
784 ret = go(cfgfile, svr, quiet, argc, argv);