src/pluto/plutomain.c

   1 /* Pluto main program
   2  * Copyright (C) 1997 Angelos D. Keromytis.
   3  * Copyright (C) 1998-2001  D. Hugh Redelmeier.
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the
   7  * Free Software Foundation; either version 2 of the License, or (at your
   8  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  12  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * for more details.
  14  *
  15  * RCSID $Id: plutomain.c,v 1.16 2005/09/25 21:30:52 as Exp $
  16  */
  17
  18 #include <stdio.h>
  19 #include <stdlib.h>
  20 #include <unistd.h>
  21 #include <ctype.h>
  22 #include <errno.h>
  23 #include <string.h>
  24 #include <sys/types.h>
  25 #include <sys/stat.h>
  26 #include <sys/un.h>
  27 #include <fcntl.h>
  28 #include <getopt.h>
  29 #include <resolv.h>
  30 #include <arpa/nameser.h>       /* missing from <resolv.h> on old systems */
  31 #include <sys/queue.h>
  32 #include <linux/capability.h>
  33 #include <sys/prctl.h>
  34
  35 #include <freeswan.h>
  36
  37 #include <pfkeyv2.h>
  38 #include <pfkey.h>
  39
  40 #include "constants.h"
  41 #include "defs.h"
  42 #include "id.h"
  43 #include "ca.h"
  44 #include "certs.h"
  45 #include "ac.h"
  46 #include "connections.h"
  47 #include "foodgroups.h"
  48 #include "packet.h"
  49 #include "demux.h"      /* needs packet.h */
  50 #include "server.h"
  51 #include "kernel.h"
  52 #include "log.h"
  53 #include "keys.h"
  54 #include "adns.h"       /* needs <resolv.h> */
  55 #include "dnskey.h"     /* needs keys.h and adns.h */
  56 #include "rnd.h"
  57 #include "state.h"
  58 #include "ipsec_doi.h"  /* needs demux.h and state.h */
  59 #include "ocsp.h"
  60 #include "crl.h"
  61 #include "fetch.h"
  62 #include "xauth.h"
  63 #include "sha1.h"
  64 #include "md5.h"
  65 #include "crypto.h"     /* requires sha1.h and md5.h */
  66 #include "nat_traversal.h"
  67 #include "virtual.h"
  68
  69 /* on some distros, a capset() definition is missing */
  70 #ifdef NO_CAPSET_DEFINED
  71 extern int capset(cap_user_header_t hdrp, const cap_user_data_t datap);
  72 #endif /* NO_CAPSET_DEFINED */
  73
  74 static void
  75 usage(const char *mess)
  76 {
  77     if (mess != NULL && *mess != '\0')
  78         fprintf(stderr, "%s\n", mess);
  79     fprintf(stderr
  80         , "Usage: pluto"
  81             " [--help]"
  82             " [--version]"
  83             " [--optionsfrom <filename>]"
  84             " \\\n\t"
  85             "[--nofork]"
  86             " [--stderrlog]"
  87             " [--noklips]"
  88             " [--nocrsend]"
  89             " \\\n\t"
  90             "[--strictcrlpolicy]"
  91             " [--crlcheckinterval <interval>]"
  92             " [--cachecrls]"
  93             " [--uniqueids]"
  94             " \\\n\t"
  95             "[--interface <ifname>]"
  96             " [--ikeport <port-number>]"
  97             " \\\n\t"
  98             "[--ctlbase <path>]"
  99             " \\\n\t"
 100             "[--perpeerlogbase <path>] [--perpeerlog]"
 101             " \\\n\t"
 102             "[--secretsfile <secrets-file>]"
 103             " [--policygroupsdir <policygroups-dir>]"
 104             " \\\n\t"
 105             "[--adns <pathname>]"
 106             "[--pkcs11module <path>]"
 107             "[--pkcs11keepstate]"
 108             "[--pkcs11initargs <string>]"
 109 #ifdef DEBUG
 110             " \\\n\t"
 111             "[--debug-none]"
 112             " [--debug-all]"
 113             " \\\n\t"
 114             "[--debug-raw]"
 115             " [--debug-crypt]"
 116             " [--debug-parsing]"
 117             " [--debug-emitting]"
 118             " \\\n\t"
 119             "[--debug-control]"
 120             " [--debug-lifecycle]"
 121             " [--debug-klips]"
 122             " [--debug-dns]"
 123             " \\\n\t"
 124             "[--debug-oppo]"
 125             " [--debug-controlmore]"
 126             " [--debug-private]"
 127 #endif
 128             " [ --debug-natt]"
 129             " \\\n\t"
 130             "[--nat_traversal] [--keep_alive <delay_sec>]"
 131             " \\\n\t"
 132             "[--force_keepalive] [--disable_port_floating]"
 133            " \\\n\t"
 134            "[--virtual_private <network_list>]"
 135             "\n"
 136         "strongSwan %s\n"
 137         , ipsec_version_code());
 138     exit_pluto(mess == NULL? 0 : 1);
 139 }
 140
 141
 142 /* lock file support
 143  * - provides convenient way for scripts to find Pluto's pid
 144  * - prevents multiple Plutos competing for the same port
 145  * - same basename as unix domain control socket
 146  * NOTE: will not take account of sharing LOCK_DIR with other systems.
 147  */
 148
 149 static char pluto_lock[sizeof(ctl_addr.sun_path)] = DEFAULT_CTLBASE LOCK_SUFFIX;
 150 static bool pluto_lock_created = FALSE;
 151
 152 /* create lockfile, or die in the attempt */
 153 static int
 154 create_lock(void)
 155 {
 156     int fd = open(pluto_lock, O_WRONLY | O_CREAT | O_EXCL | O_TRUNC
 157         , S_IRUSR | S_IRGRP | S_IROTH);
 158
 159     if (fd < 0)
 160     {
 161         if (errno == EEXIST)
 162         {
 163             fprintf(stderr, "pluto: lock file \"%s\" already exists\n"
 164                 , pluto_lock);
 165             exit_pluto(10);
 166         }
 167         else
 168         {
 169             fprintf(stderr
 170                 , "pluto: unable to create lock file \"%s\" (%d %s)\n"
 171                 , pluto_lock, errno, strerror(errno));
 172             exit_pluto(1);
 173         }
 174     }
 175     pluto_lock_created = TRUE;
 176     return fd;
 177 }
 178
 179 static bool
 180 fill_lock(int lockfd, pid_t pid)
 181 {
 182     char buf[30];       /* holds "<pid>\n" */
 183     int len = snprintf(buf, sizeof(buf), "%u\n", (unsigned int) pid);
 184     bool ok = len > 0 && write(lockfd, buf, len) == len;
 185
 186     close(lockfd);
 187     return ok;
 188 }
 189
 190 static void
 191 delete_lock(void)
 192 {
 193     if (pluto_lock_created)
 194     {
 195         delete_ctl_socket();
 196         unlink(pluto_lock);     /* is noting failure useful? */
 197     }
 198 }
 199
 200 /* by default pluto sends certificate requests to its peers */
 201 bool no_cr_send = FALSE;
 202
 203 /* by default the CRL policy is lenient */
 204 bool strict_crl_policy = FALSE;
 205
 206 /* by default CRLs are cached locally as files */
 207 bool cache_crls = FALSE;
 208
 209 /* by default pluto does not check crls dynamically */
 210 long crl_check_interval = 0;
 211
 212 /* path to the PKCS#11 module */
 213 char *pkcs11_module_path = NULL;
 214
 215 /* by default pluto logs out after every smartcard use */
 216 bool pkcs11_keep_state = FALSE;
 217
 218 /* by default pluto does not allow pkcs11 proxy access via whack */
 219 bool pkcs11_proxy = FALSE;
 220
 221 /* argument string to pass to PKCS#11 module.
 222  * Not used for compliant modules, just for NSS softoken
 223  */
 224 static const char *pkcs11_init_args = NULL;
 225
 226 int
 227 main(int argc, char **argv)
 228 {
 229     bool fork_desired = TRUE;
 230     bool log_to_stderr_desired = FALSE;
 231     bool nat_traversal = FALSE;
 232     bool nat_t_spf = TRUE;  /* support port floating */
 233     unsigned int keep_alive = 0;
 234     bool force_keepalive = FALSE;
 235     char *virtual_private = NULL;
 236     int lockfd;
 237     struct __user_cap_header_struct hdr;
 238     struct __user_cap_data_struct data;
 239
 240     /* handle arguments */
 241     for (;;)
 242     {
 243 #       define DBG_OFFSET 256
 244         static const struct option long_opts[] = {
 245             /* name, has_arg, flag, val */
 246             { "help", no_argument, NULL, 'h' },
 247             { "version", no_argument, NULL, 'v' },
 248             { "optionsfrom", required_argument, NULL, '+' },
 249             { "nofork", no_argument, NULL, 'd' },
 250             { "stderrlog", no_argument, NULL, 'e' },
 251             { "noklips", no_argument, NULL, 'n' },
 252             { "nocrsend", no_argument, NULL, 'c' },
 253             { "strictcrlpolicy", no_argument, NULL, 'r' },
 254             { "crlcheckinterval", required_argument, NULL, 'x'},
 255             { "cachecrls", no_argument, NULL, 'C' },
 256             { "uniqueids", no_argument, NULL, 'u' },
 257             { "interface", required_argument, NULL, 'i' },
 258             { "ikeport", required_argument, NULL, 'p' },
 259             { "ctlbase", required_argument, NULL, 'b' },
 260             { "secretsfile", required_argument, NULL, 's' },
 261             { "foodgroupsdir", required_argument, NULL, 'f' },
 262             { "perpeerlogbase", required_argument, NULL, 'P' },
 263             { "perpeerlog", no_argument, NULL, 'l' },
 264             { "policygroupsdir", required_argument, NULL, 'f' },
 265 #ifdef USE_LWRES
 266             { "lwdnsq", required_argument, NULL, 'a' },
 267 #else /* !USE_LWRES */
 268             { "adns", required_argument, NULL, 'a' },
 269 #endif /* !USE_LWRES */
 270             { "pkcs11module", required_argument, NULL, 'm' },
 271             { "pkcs11keepstate", no_argument, NULL, 'k' },
 272             { "pkcs11initargs", required_argument, NULL, 'z' },
 273             { "pkcs11proxy", no_argument, NULL, 'y' },
 274             { "nat_traversal", no_argument, NULL, '1' },
 275             { "keep_alive", required_argument, NULL, '2' },
 276             { "force_keepalive", no_argument, NULL, '3' },
 277             { "disable_port_floating", no_argument, NULL, '4' },
 278             { "debug-natt", no_argument, NULL, '5' },
 279             { "virtual_private", required_argument, NULL, '6' },
 280 #ifdef DEBUG
 281             { "debug-none", no_argument, NULL, 'N' },
 282             { "debug-all", no_argument, NULL, 'A' },
 283             { "debug-raw", no_argument, NULL, DBG_RAW + DBG_OFFSET },
 284             { "debug-crypt", no_argument, NULL, DBG_CRYPT + DBG_OFFSET },
 285             { "debug-parsing", no_argument, NULL, DBG_PARSING + DBG_OFFSET },
 286             { "debug-emitting", no_argument, NULL, DBG_EMITTING + DBG_OFFSET },
 287             { "debug-control", no_argument, NULL, DBG_CONTROL + DBG_OFFSET },
 288             { "debug-lifecycle", no_argument, NULL, DBG_LIFECYCLE + DBG_OFFSET },
 289             { "debug-klips", no_argument, NULL, DBG_KLIPS + DBG_OFFSET },
 290             { "debug-dns", no_argument, NULL, DBG_DNS + DBG_OFFSET },
 291             { "debug-oppo", no_argument, NULL, DBG_OPPO + DBG_OFFSET },
 292             { "debug-controlmore", no_argument, NULL, DBG_CONTROLMORE + DBG_OFFSET },
 293             { "debug-private", no_argument, NULL, DBG_PRIVATE + DBG_OFFSET },
 294
 295             { "impair-delay-adns-key-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_KEY_ANSWER + DBG_OFFSET },
 296             { "impair-delay-adns-txt-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_TXT_ANSWER + DBG_OFFSET },
 297             { "impair-bust-mi2", no_argument, NULL, IMPAIR_BUST_MI2 + DBG_OFFSET },
 298             { "impair-bust-mr2", no_argument, NULL, IMPAIR_BUST_MR2 + DBG_OFFSET },
 299 #endif
 300             { 0,0,0,0 }
 301             };
 302         /* Note: we don't like the way short options get parsed
 303          * by getopt_long, so we simply pass an empty string as
 304          * the list.  It could be "hvdenp:l:s:" "NARXPECK".
 305          */
 306         int c = getopt_long(argc, argv, "", long_opts, NULL);
 307
 308         /* Note: "breaking" from case terminates loop */
 309         switch (c)
 310         {
 311         case EOF:       /* end of flags */
 312             break;
 313
 314         case 0: /* long option already handled */
 315             continue;
 316
 317         case ':':       /* diagnostic already printed by getopt_long */
 318         case '?':       /* diagnostic already printed by getopt_long */
 319             usage("");
 320             break;   /* not actually reached */
 321
 322         case 'h':       /* --help */
 323             usage(NULL);
 324             break;      /* not actually reached */
 325
 326         case 'v':       /* --version */
 327             {
 328                 const char **sp = ipsec_copyright_notice();
 329
 330                 printf("%s%s\n", ipsec_version_string(),
 331                                  compile_time_interop_options);
 332                 for (; *sp != NULL; sp++)
 333                     puts(*sp);
 334             }
 335             exit_pluto(0);
 336             break;      /* not actually reached */
 337
 338         case '+':       /* --optionsfrom <filename> */
 339             optionsfrom(optarg, &argc, &argv, optind, stderr);
 340             /* does not return on error */
 341             continue;
 342
 343         case 'd':       /* --nofork*/
 344             fork_desired = FALSE;
 345             continue;
 346
 347         case 'e':       /* --stderrlog */
 348             log_to_stderr_desired = TRUE;
 349             continue;
 350
 351         case 'n':       /* --noklips */
 352             no_klips = TRUE;
 353             continue;
 354
 355         case 'c':       /* --nocrsend */
 356             no_cr_send = TRUE;
 357             continue;
 358
 359         case 'r':       /* --strictcrlpolicy */
 360             strict_crl_policy = TRUE;
 361             continue;
 362
 363         case 'x':       /* --crlcheckinterval <time>*/
 364             if (optarg == NULL || !isdigit(optarg[0]))
 365                 usage("missing interval time");
 366
 367             {
 368                 char *endptr;
 369                 long interval = strtol(optarg, &endptr, 0);
 370
 371                 if (*endptr != '\0' || endptr == optarg
 372                 || interval <= 0)
 373                     usage("<interval-time> must be a positive number");
 374                 crl_check_interval = interval;
 375             }
 376             continue;
 377
 378         case 'C':       /* --cachecrls */
 379             cache_crls = TRUE;
 380             continue;
 381
 382         case 'u':       /* --uniqueids */
 383             uniqueIDs = TRUE;
 384             continue;
 385
 386         case 'i':       /* --interface <ifname> */
 387             if (!use_interface(optarg))
 388                 usage("too many --interface specifications");
 389             continue;
 390
 391         case 'p':       /* --port <portnumber> */
 392             if (optarg == NULL || !isdigit(optarg[0]))
 393                 usage("missing port number");
 394
 395             {
 396                 char *endptr;
 397                 long port = strtol(optarg, &endptr, 0);
 398
 399                 if (*endptr != '\0' || endptr == optarg
 400                 || port <= 0 || port > 0x10000)
 401                     usage("<port-number> must be a number between 1 and 65535");
 402                 pluto_port = port;
 403             }
 404             continue;
 405
 406         case 'b':       /* --ctlbase <path> */
 407             if (snprintf(ctl_addr.sun_path, sizeof(ctl_addr.sun_path)
 408             , "%s%s", optarg, CTL_SUFFIX) == -1)
 409                 usage("<path>" CTL_SUFFIX " too long for sun_path");
 410             if (snprintf(info_addr.sun_path, sizeof(info_addr.sun_path)
 411             , "%s%s", optarg, INFO_SUFFIX) == -1)
 412                 usage("<path>" INFO_SUFFIX " too long for sun_path");
 413             if (snprintf(pluto_lock, sizeof(pluto_lock)
 414             , "%s%s", optarg, LOCK_SUFFIX) == -1)
 415                 usage("<path>" LOCK_SUFFIX " must fit");
 416             continue;
 417
 418         case 's':       /* --secretsfile <secrets-file> */
 419             shared_secrets_file = optarg;
 420             continue;
 421
 422         case 'f':       /* --policygroupsdir <policygroups-dir> */
 423             policygroups_dir = optarg;
 424             continue;
 425
 426         case 'a':       /* --adns <pathname> */
 427             pluto_adns_option = optarg;
 428             continue;
 429
 430         case 'm':       /* --pkcs11module <pathname> */
 431             pkcs11_module_path = optarg;
 432             continue;
 433
 434         case 'k':       /* --pkcs11keepstate */
 435             pkcs11_keep_state = TRUE;
 436             continue;
 437
 438         case 'y':       /* --pkcs11proxy */
 439             pkcs11_proxy = TRUE;
 440             continue;
 441
 442         case 'z':       /* --pkcs11initargs */
 443             pkcs11_init_args = optarg;
 444             continue;
 445
 446 #ifdef DEBUG
 447         case 'N':       /* --debug-none */
 448             base_debugging = DBG_NONE;
 449             continue;
 450
 451         case 'A':       /* --debug-all */
 452             base_debugging = DBG_ALL;
 453             continue;
 454 #endif
 455
 456         case 'P':       /* --perpeerlogbase */
 457             base_perpeer_logdir = optarg;
 458             continue;
 459
 460         case 'l':
 461             log_to_perpeer = TRUE;
 462             continue;
 463
 464         case '1':       /* --nat_traversal */
 465             nat_traversal = TRUE;
 466             continue;
 467         case '2':       /* --keep_alive */
 468             keep_alive = atoi(optarg);
 469             continue;
 470         case '3':       /* --force_keepalive */
 471             force_keepalive = TRUE;
 472             continue;
 473         case '4':       /* --disable_port_floating */
 474             nat_t_spf = FALSE;
 475             continue;
 476         case '5':       /* --debug-nat_t */
 477             base_debugging |= DBG_NATT;
 478             continue;
 479         case '6':       /* --virtual_private */
 480             virtual_private = optarg;
 481             continue;
 482
 483         default:
 484 #ifdef DEBUG
 485             if (c >= DBG_OFFSET)
 486             {
 487                 base_debugging |= c - DBG_OFFSET;
 488                 continue;
 489             }
 490 #       undef DBG_OFFSET
 491 #endif
 492             bad_case(c);
 493         }
 494         break;
 495     }
 496     if (optind != argc)
 497         usage("unexpected argument");
 498     reset_debugging();
 499     lockfd = create_lock();
 500
 501     /* select between logging methods */
 502
 503     if (log_to_stderr_desired)
 504         log_to_syslog = FALSE;
 505     else
 506         log_to_stderr = FALSE;
 507
 508     /* set the logging function of pfkey debugging */
 509 #ifdef DEBUG
 510     pfkey_debug_func = DBG_log;
 511 #else
 512     pfkey_debug_func = NULL;
 513 #endif
 514
 515     /* create control socket.
 516      * We must create it before the parent process returns so that
 517      * there will be no race condition in using it.  The easiest
 518      * place to do this is before the daemon fork.
 519      */
 520     {
 521         err_t ugh = init_ctl_socket();
 522
 523         if (ugh != NULL)
 524         {
 525             fprintf(stderr, "pluto: %s", ugh);
 526             exit_pluto(1);
 527         }
 528     }
 529
 530     /* If not suppressed, do daemon fork */
 531
 532     if (fork_desired)
 533     {
 534         {
 535             pid_t pid = fork();
 536
 537             if (pid < 0)
 538             {
 539                 int e = errno;
 540
 541                 fprintf(stderr, "pluto: fork failed (%d %s)\n",
 542                     errno, strerror(e));
 543                 exit_pluto(1);
 544             }
 545
 546             if (pid != 0)
 547             {
 548                 /* parent: die, after filling PID into lock file.
 549                  * must not use exit_pluto: lock would be removed!
 550                  */
 551                 exit(fill_lock(lockfd, pid)? 0 : 1);
 552             }
 553         }
 554
 555         if (setsid() < 0)
 556         {
 557             int e = errno;
 558
 559             fprintf(stderr, "setsid() failed in main(). Errno %d: %s\n",
 560                 errno, strerror(e));
 561             exit_pluto(1);
 562         }
 563     }
 564     else
 565     {
 566         /* no daemon fork: we have to fill in lock file */
 567         (void) fill_lock(lockfd, getpid());
 568         fprintf(stdout, "Pluto initialized\n");
 569         fflush(stdout);
 570     }
 571
 572     /* Close everything but ctl_fd and (if needed) stderr.
 573      * There is some danger that a library that we don't know
 574      * about is using some fd that we don't know about.
 575      * I guess we'll soon find out.
 576      */
 577     {
 578         int i;
 579
 580         for (i = getdtablesize() - 1; i >= 0; i--)  /* Bad hack */
 581         {
 582             if ((!log_to_stderr || i != 2) && i != ctl_fd)
 583                 close(i);
 584         }
 585
 586         /* make sure that stdin, stdout, stderr are reserved */
 587         if (open("/dev/null", O_RDONLY) != 0)
 588             abort();
 589         if (dup2(0, 1) != 1)
 590             abort();
 591         if (!log_to_stderr && dup2(0, 2) != 2)
 592             abort();
 593     }
 594
 595     init_constants();
 596     init_log("pluto");
 597
 598     /* Note: some scripts may look for this exact message -- don't change
 599      * ipsec barf was one, but it no longer does.
 600      */
 601     plog("Starting Pluto (strongSwan Version %s%s)"
 602         , ipsec_version_code()
 603         , compile_time_interop_options);
 604
 605     init_nat_traversal(nat_traversal, keep_alive, force_keepalive, nat_t_spf);
 606     init_virtual_ip(virtual_private);
 607     scx_init(pkcs11_module_path, pkcs11_init_args);   /* load and initialize PKCS #11 module */
 608     xauth_init();                   /* load and initialize XAUTH module */
 609     init_rnd_pool();
 610     init_secret();
 611     init_states();
 612     init_crypto();
 613     init_demux();
 614     init_kernel();
 615     init_adns();
 616     init_id();
 617     init_fetch();
 618
 619     /* drop unneeded capabilities and change UID/GID */
 620     hdr.version = _LINUX_CAPABILITY_VERSION;
 621     hdr.pid = 0;
 622     data.effective = data.permitted = 1<<CAP_NET_ADMIN | 1<<CAP_NET_BIND_SERVICE;
 623     data.inheritable = 0;
 624
 625     prctl(PR_SET_KEEPCAPS, 1);
 626
 627 #   if IPSEC_GID
 628         setgid(IPSEC_GID);
 629 #   endif
 630 #   if IPSEC_UID
 631         setuid(IPSEC_UID);
 632 #   endif
 633     if (capset(&hdr, &data))
 634     {
 635         plog("unable to drop root privileges");
 636         abort();
 637     }
 638
 639     /* loading X.509 CA certificates */
 640     load_authcerts("CA cert", CA_CERT_PATH, AUTH_CA);
 641     /* loading X.509 AA certificates */
 642     load_authcerts("AA cert", AA_CERT_PATH, AUTH_AA);
 643     /* loading X.509 OCSP certificates */
 644     load_authcerts("OCSP cert", OCSP_CERT_PATH, AUTH_OCSP);
 645     /* loading X.509 CRLs */
 646     load_crls();
 647     /* loading attribute certificates (experimental) */
 648     load_acerts();
 649
 650     daily_log_event();
 651     call_server();
 652     return -1;  /* Shouldn't ever reach this */
 653 }
 654
 655 /* leave pluto, with status.
 656  * Once child is launched, parent must not exit this way because
 657  * the lock would be released.
 658  *
 659  *  0 OK
 660  *  1 general discomfort
 661  * 10 lock file exists
 662  */
 663 void
 664 exit_pluto(int status)
 665 {
 666     reset_globals();    /* needed because we may be called in odd state */
 667     free_preshared_secrets();
 668     free_remembered_public_keys();
 669     delete_every_connection();
 670     free_crl_fetch();           /* free chain of crl fetch requests */
 671     free_ocsp_fetch();          /* free chain of ocsp fetch requests */
 672     free_authcerts();           /* free chain of X.509 authority certificates */
 673     free_crls();                /* free chain of X.509 CRLs */
 674     free_acerts();              /* free chain of X.509 attribute certificates */
 675     free_ca_infos();            /* free chain of X.509 CA information records */
 676     free_ocsp();                /* free ocsp cache */
 677     free_ifaces();
 678     scx_finalize();             /* finalize and unload PKCS #11 module */
 679     xauth_finalize();           /* finalize and unload XAUTH module */
 680     stop_adns();
 681     free_md_pool();
 682     delete_lock();
 683 #ifdef LEAK_DETECTIVE
 684     report_leaks();
 685 #endif /* LEAK_DETECTIVE */
 686     close_log();
 687     exit(status);
 688 }
 689
 690 /*
 691  * Local Variables:
 692  * c-basic-offset:4
 693  * c-style: pluto
 694  * End:
 695  */