1 /* 2 * nsd-control.c - remote control utility for nsd. 3 * 4 * Copyright (c) 2011, NLnet Labs. All rights reserved. 5 * 6 * This software is open source. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * Redistributions of source code must retain the above copyright notice, 13 * this list of conditions and the following disclaimer. 14 * 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. 18 * 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. 22 * 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. 34 */ 35 36 /** 37 * \file 38 * 39 * The remote control utility contacts the nsd server over ssl and 40 * sends the command, receives the answer, and displays the result 41 * from the commandline. 42 */ 43 44 #include "config.h" 45 #include <stdio.h> 46 #include <stdlib.h> 47 #ifdef HAVE_SSL 48 #include <sys/types.h> 49 #include <unistd.h> 50 #include <string.h> 51 #ifdef HAVE_OPENSSL_SSL_H 52 #include <openssl/ssl.h> 53 #endif 54 #ifdef HAVE_OPENSSL_ERR_H 55 #include <openssl/err.h> 56 #endif 57 #ifdef HAVE_OPENSSL_RAND_H 58 #include <openssl/rand.h> 59 #endif 60 #ifdef HAVE_SYS_UN_H 61 #include <sys/un.h> 62 #endif 63 #include <fcntl.h> 64 #ifndef AF_LOCAL 65 #define AF_LOCAL AF_UNIX 66 #endif 67 #include "util.h" 68 #include "tsig.h" 69 #include "options.h" 70 #include "zonec.h" 71 72 static void usage(void) ATTR_NORETURN; 73 static void ssl_err(const char* s) ATTR_NORETURN; 74 static void ssl_path_err(const char* s, const char *path) ATTR_NORETURN; 75 76 /** timeout to wait for connection over stream, in msec */ 77 #define NSD_CONTROL_CONNECT_TIMEOUT 5000 78 79 int zonec_parse_string(region_type* ATTR_UNUSED(region), 80 domain_table_type* ATTR_UNUSED(domains), zone_type* ATTR_UNUSED(zone), 81 char* ATTR_UNUSED(str), domain_type** ATTR_UNUSED(parsed), 82 int* ATTR_UNUSED(num_rrs)) 83 { 84 return 0; 85 } 86 87 /** Give nsd-control usage, and exit (1). */ 88 static void 89 usage() 90 { 91 printf("Usage: nsd-control [options] command\n"); 92 printf(" Remote control utility for nsd server.\n"); 93 printf("Version %s. Report bugs to <%s>.\n", 94 PACKAGE_VERSION, PACKAGE_BUGREPORT); 95 printf("Options:\n"); 96 printf(" -c file config file, default is %s\n", CONFIGFILE); 97 printf(" -s ip[@port] server address, if omitted config is used.\n"); 98 printf(" -h show this usage help.\n"); 99 printf("Commands:\n"); 100 printf(" start start server; runs nsd(8)\n"); 101 printf(" stop stops the server\n"); 102 printf(" reload [<zone>] reload modified zonefiles from disk\n"); 103 printf(" reconfig reload the config file\n"); 104 printf(" repattern the same as reconfig\n"); 105 printf(" log_reopen reopen logfile (for log rotate)\n"); 106 printf(" status display status of server\n"); 107 printf(" stats print statistics\n"); 108 printf(" stats_noreset peek at statistics\n"); 109 printf(" addzone <name> <pattern> add a new zone\n"); 110 printf(" delzone <name> remove a zone\n"); 111 printf(" changezone <name> <pattern> change zone to use pattern\n"); 112 printf(" addzones add zone list on stdin {name space pattern newline}\n"); 113 printf(" delzones remove zone list on stdin {name newline}\n"); 114 printf(" write [<zone>] write changed zonefiles to disk\n"); 115 printf(" notify [<zone>] send NOTIFY messages to slave servers\n"); 116 printf(" transfer [<zone>] try to update slave zones to newer serial\n"); 117 printf(" force_transfer [<zone>] update slave zones with AXFR, no serial check\n"); 118 printf(" zonestatus [<zone>] print state, serial, activity\n"); 119 printf(" serverpid get pid of server process\n"); 120 printf(" verbosity <number> change logging detail\n"); 121 printf(" print_tsig [<key_name>] print tsig with <name> the secret and algo\n"); 122 printf(" update_tsig <name> <secret> change existing tsig with <name> to a new <secret>\n"); 123 printf(" add_tsig <name> <secret> [algo] add new key with the given parameters\n"); 124 printf(" assoc_tsig <zone> <key_name> associate <zone> with given tsig <key_name> name\n"); 125 printf(" del_tsig <key_name> delete tsig <key_name> from configuration\n"); 126 printf(" add_cookie_secret <secret> add (or replace) a new cookie secret <secret>\n"); 127 printf(" drop_cookie_secret drop a staging cookie secret\n"); 128 printf(" activate_cookie_secret make a staging cookie secret active\n"); 129 printf(" print_cookie_secrets show all cookie secrets with their status\n"); 130 exit(1); 131 } 132 133 /** exit with ssl error */ 134 static void ssl_err(const char* s) 135 { 136 fprintf(stderr, "error: %s\n", s); 137 ERR_print_errors_fp(stderr); 138 exit(1); 139 } 140 141 /** exit with ssl error related to a file path */ 142 static void ssl_path_err(const char* s, const char *path) 143 { 144 unsigned long err; 145 err = ERR_peek_error(); 146 if (ERR_GET_LIB(err) == ERR_LIB_SYS) { 147 fprintf(stderr, "error: %s\n%s: %s\n", 148 s, path, ERR_reason_error_string(err)); 149 exit(1); 150 } else { 151 ssl_err(s); 152 } 153 } 154 155 /** setup SSL context */ 156 static SSL_CTX* 157 setup_ctx(struct nsd_options* cfg) 158 { 159 char* s_cert, *c_key, *c_cert; 160 SSL_CTX* ctx; 161 162 if(!options_remote_is_address(cfg)) 163 return NULL; 164 s_cert = cfg->server_cert_file; 165 c_key = cfg->control_key_file; 166 c_cert = cfg->control_cert_file; 167 168 /* filenames may be relative to zonesdir */ 169 if (cfg->zonesdir && cfg->zonesdir[0] && 170 (s_cert[0] != '/' || c_key[0] != '/' || c_cert[0] != '/')) { 171 if(chdir(cfg->zonesdir)) 172 error("could not chdir to zonesdir: %s %s", 173 cfg->zonesdir, strerror(errno)); 174 } 175 176 ctx = SSL_CTX_new(SSLv23_client_method()); 177 if(!ctx) 178 ssl_err("could not allocate SSL_CTX pointer"); 179 #if SSL_OP_NO_SSLv2 != 0 180 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv2) & SSL_OP_NO_SSLv2) 181 != SSL_OP_NO_SSLv2) 182 ssl_err("could not set SSL_OP_NO_SSLv2"); 183 #endif 184 if((SSL_CTX_set_options(ctx, SSL_OP_NO_SSLv3) & SSL_OP_NO_SSLv3) 185 != SSL_OP_NO_SSLv3) 186 ssl_err("could not set SSL_OP_NO_SSLv3"); 187 #if defined(SSL_OP_NO_RENEGOTIATION) 188 /* disable client renegotiation */ 189 if((SSL_CTX_set_options(ctx, SSL_OP_NO_RENEGOTIATION) & 190 SSL_OP_NO_RENEGOTIATION) != SSL_OP_NO_RENEGOTIATION) 191 ssl_err("could not set SSL_OP_NO_RENEGOTIATION"); 192 #endif 193 if(!SSL_CTX_use_certificate_file(ctx,c_cert,SSL_FILETYPE_PEM)) 194 ssl_path_err("Error setting up SSL_CTX client cert", c_cert); 195 if(!SSL_CTX_use_PrivateKey_file(ctx,c_key,SSL_FILETYPE_PEM)) 196 ssl_path_err("Error setting up SSL_CTX client key", c_key); 197 if(!SSL_CTX_check_private_key(ctx)) 198 ssl_err("Error setting up SSL_CTX client key"); 199 if (SSL_CTX_load_verify_locations(ctx, s_cert, NULL) != 1) 200 ssl_path_err("Error setting up SSL_CTX verify, server cert", 201 s_cert); 202 SSL_CTX_set_verify(ctx, SSL_VERIFY_PEER, NULL); 203 204 return ctx; 205 } 206 207 /** check connect error */ 208 static void 209 checkconnecterr(int err, const char* svr, int port, int statuscmd) 210 { 211 if(!port) fprintf(stderr, "error: connect (%s): %s\n", svr, 212 strerror(err)); 213 else fprintf(stderr, "error: connect (%s@%d): %s\n", svr, port, 214 strerror(err)); 215 if(err == ECONNREFUSED && statuscmd) { 216 printf("nsd is stopped\n"); 217 exit(3); 218 } 219 exit(1); 220 } 221 222 /** contact the server with TCP connect */ 223 static int 224 contact_server(const char* svr, struct nsd_options* cfg, int statuscmd) 225 { 226 #ifdef INET6 227 struct sockaddr_storage addr; 228 #else 229 struct sockaddr_in addr; 230 #endif 231 socklen_t addrlen; 232 int fd; 233 int port = cfg->control_port; 234 int addrfamily = 0; 235 /* use svr or a config entry */ 236 if(!svr) { 237 if(cfg->control_interface) { 238 svr = cfg->control_interface->address; 239 } else if(cfg->do_ip4) { 240 svr = "127.0.0.1"; 241 } else { 242 svr = "::1"; 243 } 244 /* config 0 addr (everything), means ask localhost */ 245 if(strcmp(svr, "0.0.0.0") == 0) 246 svr = "127.0.0.1"; 247 else if(strcmp(svr, "::0") == 0 || 248 strcmp(svr, "0::0") == 0 || 249 strcmp(svr, "0::") == 0 || 250 strcmp(svr, "::") == 0) 251 svr = "::1"; 252 } 253 if(strchr(svr, '@')) { 254 char* ps = strchr(svr, '@'); 255 *ps++ = 0; 256 port = atoi(ps); 257 if(!port) { 258 fprintf(stderr, "could not parse port %s\n", ps); 259 exit(1); 260 } 261 } 262 if(svr[0] == '/') { 263 #ifdef HAVE_SYS_UN_H 264 struct sockaddr_un* usock = (struct sockaddr_un *) &addr; 265 usock->sun_family = AF_LOCAL; 266 #ifdef HAVE_STRUCT_SOCKADDR_UN_SUN_LEN 267 usock->sun_len = (unsigned)sizeof(usock); 268 #endif 269 (void)strlcpy(usock->sun_path, svr, sizeof(usock->sun_path)); 270 addrlen = (socklen_t)sizeof(struct sockaddr_un); 271 addrfamily = AF_LOCAL; 272 port = 0; 273 #endif 274 #ifdef INET6 275 } else if(strchr(svr, ':')) { 276 struct sockaddr_in6 sa; 277 addrlen = (socklen_t)sizeof(struct sockaddr_in6); 278 memset(&sa, 0, addrlen); 279 sa.sin6_family = AF_INET6; 280 sa.sin6_port = (in_port_t)htons((uint16_t)port); 281 if(inet_pton((int)sa.sin6_family, svr, &sa.sin6_addr) <= 0) { 282 fprintf(stderr, "could not parse IP: %s\n", svr); 283 exit(1); 284 } 285 memcpy(&addr, &sa, addrlen); 286 addrfamily = AF_INET6; 287 #endif 288 } else { /* ip4 */ 289 struct sockaddr_in sa; 290 addrlen = (socklen_t)sizeof(struct sockaddr_in); 291 memset(&sa, 0, addrlen); 292 sa.sin_family = AF_INET; 293 sa.sin_port = (in_port_t)htons((uint16_t)port); 294 if(inet_pton((int)sa.sin_family, svr, &sa.sin_addr) <= 0) { 295 fprintf(stderr, "could not parse IP: %s\n", svr); 296 exit(1); 297 } 298 memcpy(&addr, &sa, addrlen); 299 addrfamily = AF_INET; 300 } 301 302 fd = socket(addrfamily, SOCK_STREAM, 0); 303 if(fd == -1) { 304 fprintf(stderr, "socket: %s\n", strerror(errno)); 305 exit(1); 306 } 307 if(fcntl(fd, F_SETFL, O_NONBLOCK) == -1) { 308 fprintf(stderr, "error: set nonblocking: fcntl: %s", 309 strerror(errno)); 310 } 311 if(connect(fd, (struct sockaddr*)&addr, addrlen) < 0) { 312 if(errno != EINPROGRESS) { 313 checkconnecterr(errno, svr, port, statuscmd); 314 } 315 } 316 while(1) { 317 fd_set rset, wset, eset; 318 struct timeval tv; 319 FD_ZERO(&rset); 320 FD_SET(fd, &rset); 321 FD_ZERO(&wset); 322 FD_SET(fd, &wset); 323 FD_ZERO(&eset); 324 FD_SET(fd, &eset); 325 tv.tv_sec = NSD_CONTROL_CONNECT_TIMEOUT/1000; 326 tv.tv_usec= (NSD_CONTROL_CONNECT_TIMEOUT%1000)*1000; 327 if(select(fd+1, &rset, &wset, &eset, &tv) == -1) { 328 fprintf(stderr, "select: %s\n", strerror(errno)); 329 exit(1); 330 } 331 if(!FD_ISSET(fd, &rset) && !FD_ISSET(fd, &wset) && 332 !FD_ISSET(fd, &eset)) { 333 fprintf(stderr, "timeout: could not connect to server\n"); 334 exit(1); 335 } else { 336 /* check nonblocking connect error */ 337 int error = 0; 338 socklen_t len = (socklen_t)sizeof(error); 339 if(getsockopt(fd, SOL_SOCKET, SO_ERROR, (void*)&error, 340 &len) < 0) { 341 error = errno; /* on solaris errno is error */ 342 } 343 if(error != 0) { 344 if(error == EINPROGRESS || error == EWOULDBLOCK) 345 continue; /* try again later */ 346 checkconnecterr(error, svr, port, statuscmd); 347 } 348 } 349 break; 350 } 351 if(fcntl(fd, F_SETFL, 0) == -1) { 352 fprintf(stderr, "error: set blocking: fcntl: %s", 353 strerror(errno)); 354 } 355 return fd; 356 } 357 358 /** setup SSL on the connection */ 359 static SSL* 360 setup_ssl(SSL_CTX* ctx, int fd) 361 { 362 SSL* ssl; 363 X509* x; 364 int r; 365 366 if(!ctx) return NULL; 367 ssl = SSL_new(ctx); 368 if(!ssl) 369 ssl_err("could not SSL_new"); 370 SSL_set_connect_state(ssl); 371 (void)SSL_set_mode(ssl, SSL_MODE_AUTO_RETRY); 372 if(!SSL_set_fd(ssl, fd)) 373 ssl_err("could not SSL_set_fd"); 374 while(1) { 375 ERR_clear_error(); 376 if( (r=SSL_do_handshake(ssl)) == 1) 377 break; 378 r = SSL_get_error(ssl, r); 379 if(r != SSL_ERROR_WANT_READ && r != SSL_ERROR_WANT_WRITE) 380 ssl_err("SSL handshake failed"); 381 /* wants to be called again */ 382 } 383 384 /* check authenticity of server */ 385 if(SSL_get_verify_result(ssl) != X509_V_OK) 386 ssl_err("SSL verification failed"); 387 x = SSL_get_peer_certificate(ssl); 388 if(!x) 389 ssl_err("Server presented no peer certificate"); 390 X509_free(x); 391 return ssl; 392 } 393 394 /** read from ssl or fd, fatalexit on error, 0 EOF, 1 success */ 395 static int 396 remote_read(SSL* ssl, int fd, char* buf, size_t len) 397 { 398 if(ssl) { 399 int r; 400 ERR_clear_error(); 401 if((r = SSL_read(ssl, buf, (int)len-1)) <= 0) { 402 if(SSL_get_error(ssl, r) == SSL_ERROR_ZERO_RETURN) { 403 /* EOF */ 404 return 0; 405 } 406 ssl_err("could not SSL_read"); 407 } 408 buf[r] = 0; 409 } else { 410 ssize_t rr = read(fd, buf, len-1); 411 if(rr <= 0) { 412 if(rr == 0) { 413 /* EOF */ 414 return 0; 415 } 416 fprintf(stderr, "could not read: %s\n", 417 strerror(errno)); 418 exit(1); 419 } 420 buf[rr] = 0; 421 } 422 return 1; 423 } 424 425 /** write to ssl or fd, fatalexit on error */ 426 static void 427 remote_write(SSL* ssl, int fd, const char* buf, size_t len) 428 { 429 if(ssl) { 430 if(SSL_write(ssl, buf, (int)len) <= 0) 431 ssl_err("could not SSL_write"); 432 } else { 433 if(write(fd, buf, len) < (ssize_t)len) { 434 fprintf(stderr, "could not write: %s\n", 435 strerror(errno)); 436 exit(1); 437 } 438 } 439 } 440 441 /** send stdin to server */ 442 static void 443 send_file(SSL* ssl, int fd, FILE* in, char* buf, size_t sz) 444 { 445 char e[] = {0x04, 0x0a}; 446 while(fgets(buf, (int)sz, in)) { 447 remote_write(ssl, fd, buf, strlen(buf)); 448 } 449 /* send end-of-file marker */ 450 remote_write(ssl, fd, e, sizeof(e)); 451 } 452 453 /** send command and display result */ 454 static int 455 go_cmd(SSL* ssl, int fd, int argc, char* argv[]) 456 { 457 char pre[10]; 458 const char* space=" "; 459 const char* newline="\n"; 460 int was_error = 0, first_line = 1; 461 int i; 462 char buf[1024]; 463 snprintf(pre, sizeof(pre), "NSDCT%d ", NSD_CONTROL_VERSION); 464 remote_write(ssl, fd, pre, strlen(pre)); 465 for(i=0; i<argc; i++) { 466 remote_write(ssl, fd, space, strlen(space)); 467 remote_write(ssl, fd, argv[i], strlen(argv[i])); 468 } 469 remote_write(ssl, fd, newline, strlen(newline)); 470 471 /* send contents to server */ 472 if(argc == 1 && (strcmp(argv[0], "addzones") == 0 || 473 strcmp(argv[0], "delzones") == 0)) { 474 send_file(ssl, fd, stdin, buf, sizeof(buf)); 475 } 476 477 while(1) { 478 if(remote_read(ssl, fd, buf, sizeof(buf)) == 0) { 479 break; /* EOF */ 480 } 481 printf("%s", buf); 482 if(first_line && strncmp(buf, "error", 5) == 0) 483 was_error = 1; 484 first_line = 0; 485 } 486 return was_error; 487 } 488 489 /** go ahead and read config, contact server and perform command and display */ 490 static int 491 go(const char* cfgfile, char* svr, int argc, char* argv[]) 492 { 493 struct nsd_options* opt; 494 int fd, ret; 495 SSL_CTX* ctx; 496 SSL* ssl; 497 498 /* read config */ 499 if(!(opt = nsd_options_create(region_create(xalloc, free)))) { 500 fprintf(stderr, "out of memory\n"); 501 exit(1); 502 } 503 tsig_init(opt->region); 504 if(!parse_options_file(opt, cfgfile, NULL, NULL)) { 505 fprintf(stderr, "could not read config file\n"); 506 exit(1); 507 } 508 if(!opt->control_enable) 509 fprintf(stderr, "warning: control-enable is 'no' in the config file.\n"); 510 resolve_interface_names(opt); 511 ctx = setup_ctx(opt); 512 513 /* contact server */ 514 fd = contact_server(svr, opt, argc>0&&strcmp(argv[0],"status")==0); 515 ssl = setup_ssl(ctx, fd); 516 517 /* send command */ 518 ret = go_cmd(ssl, fd, argc, argv); 519 520 if(ssl) SSL_free(ssl); 521 close(fd); 522 if(ctx) SSL_CTX_free(ctx); 523 region_destroy(opt->region); 524 return ret; 525 } 526 527 /** getopt global, in case header files fail to declare it. */ 528 extern int optind; 529 /** getopt global, in case header files fail to declare it. */ 530 extern char* optarg; 531 532 /** Main routine for nsd-control */ 533 int main(int argc, char* argv[]) 534 { 535 int c; 536 const char* cfgfile = CONFIGFILE; 537 char* svr = NULL; 538 log_init("nsd-control"); 539 540 #ifdef HAVE_ERR_LOAD_CRYPTO_STRINGS 541 ERR_load_crypto_strings(); 542 #endif 543 #if defined(HAVE_ERR_LOAD_SSL_STRINGS) && !defined(DEPRECATED_ERR_LOAD_SSL_STRINGS) 544 ERR_load_SSL_strings(); 545 #endif 546 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_CRYPTO) 547 OpenSSL_add_all_algorithms(); 548 #else 549 OPENSSL_init_crypto(OPENSSL_INIT_ADD_ALL_CIPHERS 550 | OPENSSL_INIT_ADD_ALL_DIGESTS 551 | OPENSSL_INIT_LOAD_CRYPTO_STRINGS, NULL); 552 #endif 553 #if OPENSSL_VERSION_NUMBER < 0x10100000 || !defined(HAVE_OPENSSL_INIT_SSL) 554 (void)SSL_library_init(); 555 #else 556 OPENSSL_init_ssl(0, NULL); 557 #endif 558 559 if(!RAND_status()) { 560 /* try to seed it */ 561 unsigned char buf[256]; 562 unsigned int v, seed=(unsigned)time(NULL) ^ (unsigned)getpid(); 563 size_t i; 564 v = seed; 565 for(i=0; i<256/sizeof(v); i++) { 566 memmove(buf+i*sizeof(v), &v, sizeof(v)); 567 v = v*seed + (unsigned int)i; 568 } 569 RAND_seed(buf, 256); 570 fprintf(stderr, "warning: no entropy, seeding openssl PRNG with time\n"); 571 } 572 573 /* parse the options */ 574 while( (c=getopt(argc, argv, "c:s:h")) != -1) { 575 switch(c) { 576 case 'c': 577 cfgfile = optarg; 578 break; 579 case 's': 580 svr = optarg; 581 break; 582 case '?': 583 case 'h': 584 default: 585 usage(); 586 } 587 } 588 argc -= optind; 589 argv += optind; 590 if(argc == 0) 591 usage(); 592 if(argc >= 1 && strcmp(argv[0], "start")==0) { 593 const char *path; 594 if((path = getenv("NSD_PATH")) == NULL) { 595 path = NSD_START_PATH; 596 } 597 if(execl(path, "nsd", "-c", cfgfile, (char*)NULL) < 0) { 598 fprintf(stderr, "could not exec %s: %s\n", 599 NSD_START_PATH, strerror(errno)); 600 exit(1); 601 } 602 } 603 604 return go(cfgfile, svr, argc, argv); 605 } 606 607 #else /* HAVE_SSL */ 608 int main(void) 609 { 610 printf("error: NSD was compiled without SSL.\n"); 611 return 1; 612 } 613 #endif /* HAVE_SSL */ 614