src/pluto/plutomain.c

   1 /* Pluto main program
   2  * Copyright (C) 1997 Angelos D. Keromytis.
   3  * Copyright (C) 1998-2001 D. Hugh Redelmeier.
   4  * Copyright (C) 2009 Andreas Steffen - Hochschule fuer Technik Rapperswil
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License as published by the
   8  * Free Software Foundation; either version 2 of the License, or (at your
   9  * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13  * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * for more details.
  15  */
  16
  17 #include <stdio.h>
  18 #include <stdlib.h>
  19 #include <unistd.h>
  20 #include <ctype.h>
  21 #include <errno.h>
  22 #include <string.h>
  23 #include <sys/types.h>
  24 #include <sys/stat.h>
  25 #include <sys/un.h>
  26 #include <fcntl.h>
  27 #include <getopt.h>
  28 #include <resolv.h>
  29 #include <arpa/nameser.h>       /* missing from <resolv.h> on old systems */
  30 #include <sys/queue.h>
  31 #include <sys/prctl.h>
  32 #include <pwd.h>
  33 #include <grp.h>
  34
  35 #ifdef CAPABILITIES
  36 #include <sys/capability.h>
  37 #endif /* CAPABILITIES */
  38
  39 #include <freeswan.h>
  40
  41 #include <hydra.h>
  42 #include <library.h>
  43 #include <debug.h>
  44 #include <utils/enumerator.h>
  45 #include <utils/optionsfrom.h>
  46
  47 #include <pfkeyv2.h>
  48 #include <pfkey.h>
  49
  50 #include "constants.h"
  51 #include "defs.h"
  52 #include "myid.h"
  53 #include "ca.h"
  54 #include "certs.h"
  55 #include "ac.h"
  56 #include "connections.h"
  57 #include "foodgroups.h"
  58 #include "packet.h"
  59 #include "demux.h"      /* needs packet.h */
  60 #include "server.h"
  61 #include "kernel.h"
  62 #include "log.h"
  63 #include "keys.h"
  64 #include "adns.h"       /* needs <resolv.h> */
  65 #include "dnskey.h"     /* needs keys.h and adns.h */
  66 #include "state.h"
  67 #include "ipsec_doi.h"  /* needs demux.h and state.h */
  68 #include "ocsp.h"
  69 #include "crl.h"
  70 #include "fetch.h"
  71 #include "xauth.h"
  72 #include "crypto.h"
  73 #include "nat_traversal.h"
  74 #include "virtual.h"
  75 #include "timer.h"
  76 #include "vendor.h"
  77 #include "builder.h"
  78
  79 static void usage(const char *mess)
  80 {
  81         if (mess != NULL && *mess != '\0')
  82                 fprintf(stderr, "%s\n", mess);
  83         fprintf(stderr
  84                 , "Usage: pluto"
  85                         " [--help]"
  86                         " [--version]"
  87                         " [--optionsfrom <filename>]"
  88                         " \\\n\t"
  89                         "[--nofork]"
  90                         " [--stderrlog]"
  91                         " [--noklips]"
  92                         " [--nocrsend]"
  93                         " \\\n\t"
  94                         "[--strictcrlpolicy]"
  95                         " [--crlcheckinterval <interval>]"
  96                         " [--cachecrls]"
  97                         " [--uniqueids]"
  98                         " \\\n\t"
  99                         "[--interface <ifname>]"
 100                         " [--ikeport <port-number>]"
 101                         " \\\n\t"
 102                         "[--ctlbase <path>]"
 103                         " \\\n\t"
 104                         "[--perpeerlogbase <path>] [--perpeerlog]"
 105                         " \\\n\t"
 106                         "[--secretsfile <secrets-file>]"
 107                         " [--policygroupsdir <policygroups-dir>]"
 108                         " \\\n\t"
 109                         "[--adns <pathname>]"
 110                         "[--pkcs11module <path>]"
 111                         "[--pkcs11keepstate]"
 112                         "[--pkcs11initargs <string>]"
 113 #ifdef DEBUG
 114                         " \\\n\t"
 115                         "[--debug-none]"
 116                         " [--debug-all]"
 117                         " \\\n\t"
 118                         "[--debug-raw]"
 119                         " [--debug-crypt]"
 120                         " [--debug-parsing]"
 121                         " [--debug-emitting]"
 122                         " \\\n\t"
 123                         "[--debug-control]"
 124                         " [--debug-lifecycle]"
 125                         " [--debug-klips]"
 126                         " [--debug-dns]"
 127                         " \\\n\t"
 128                         "[--debug-oppo]"
 129                         " [--debug-controlmore]"
 130                         " [--debug-private]"
 131                         " [--debug-natt]"
 132 #endif
 133                     " \\\n\t"
 134                         "[--nat_traversal] [--keep_alive <delay_sec>]"
 135                         " \\\n\t"
 136                         "[--force_keepalive] [--disable_port_floating]"
 137                     " \\\n\t"
 138                     "[--virtual_private <network_list>]"
 139                         "\n"
 140                     "strongSwan "VERSION"\n");
 141         exit_pluto(mess == NULL? 0 : 1);
 142 }
 143
 144
 145 /* lock file support
 146  * - provides convenient way for scripts to find Pluto's pid
 147  * - prevents multiple Plutos competing for the same port
 148  * - same basename as unix domain control socket
 149  * NOTE: will not take account of sharing LOCK_DIR with other systems.
 150  */
 151
 152 static char pluto_lock[sizeof(ctl_addr.sun_path)] = DEFAULT_CTLBASE LOCK_SUFFIX;
 153 static bool pluto_lock_created = FALSE;
 154
 155 /* create lockfile, or die in the attempt */
 156 static int create_lock(void)
 157 {
 158         int fd = open(pluto_lock, O_WRONLY | O_CREAT | O_EXCL | O_TRUNC
 159                 , S_IRUSR | S_IRGRP | S_IROTH);
 160
 161         if (fd < 0)
 162         {
 163                 if (errno == EEXIST)
 164                 {
 165                         fprintf(stderr, "pluto: lock file \"%s\" already exists\n"
 166                                 , pluto_lock);
 167                         exit_pluto(10);
 168                 }
 169                 else
 170                 {
 171                         fprintf(stderr
 172                                 , "pluto: unable to create lock file \"%s\" (%d %s)\n"
 173                                 , pluto_lock, errno, strerror(errno));
 174                         exit_pluto(1);
 175                 }
 176         }
 177         pluto_lock_created = TRUE;
 178         return fd;
 179 }
 180
 181 static bool fill_lock(int lockfd, pid_t pid)
 182 {
 183         char buf[30];       /* holds "<pid>\n" */
 184         int len = snprintf(buf, sizeof(buf), "%u\n", (unsigned int) pid);
 185         bool ok = len > 0 && write(lockfd, buf, len) == len;
 186
 187         close(lockfd);
 188         return ok;
 189 }
 190
 191 static void 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
 201 /* by default pluto sends certificate requests to its peers */
 202 bool no_cr_send = FALSE;
 203
 204 /* by default the CRL policy is lenient */
 205 bool strict_crl_policy = FALSE;
 206
 207 /* by default CRLs are cached locally as files */
 208 bool cache_crls = FALSE;
 209
 210 /* by default pluto does not check crls dynamically */
 211 long crl_check_interval = 0;
 212
 213 /* path to the PKCS#11 module */
 214 char *pkcs11_module_path = NULL;
 215
 216 /* by default pluto logs out after every smartcard use */
 217 bool pkcs11_keep_state = FALSE;
 218
 219 /* by default pluto does not allow pkcs11 proxy access via whack */
 220 bool pkcs11_proxy = FALSE;
 221
 222 /* argument string to pass to PKCS#11 module.
 223  * Not used for compliant modules, just for NSS softoken
 224  */
 225 static const char *pkcs11_init_args = NULL;
 226
 227 /* options read by optionsfrom */
 228 options_t *options;
 229
 230 /**
 231  * Log loaded plugins
 232  */
 233 static void print_plugins()
 234 {
 235         char buf[BUF_LEN], *plugin;
 236         int len = 0;
 237         enumerator_t *enumerator;
 238
 239         buf[0] = '\0';
 240         enumerator = lib->plugins->create_plugin_enumerator(lib->plugins);
 241         while (len < BUF_LEN && enumerator->enumerate(enumerator, &plugin))
 242         {
 243                 len += snprintf(&buf[len], BUF_LEN-len, "%s ", plugin);
 244         }
 245         enumerator->destroy(enumerator);
 246         DBG1("loaded plugins: %s", buf);
 247 }
 248
 249 int main(int argc, char **argv)
 250 {
 251         bool fork_desired = TRUE;
 252         bool log_to_stderr_desired = FALSE;
 253         bool nat_traversal = FALSE;
 254         bool nat_t_spf = TRUE;  /* support port floating */
 255         unsigned int keep_alive = 0;
 256         bool force_keepalive = FALSE;
 257         char *virtual_private = NULL;
 258         int lockfd;
 259 #ifdef CAPABILITIES
 260         cap_t caps;
 261         int keep[] = { CAP_NET_ADMIN, CAP_NET_BIND_SERVICE };
 262 #endif /* CAPABILITIES */
 263
 264         /* initialize library and optionsfrom */
 265         if (!library_init(NULL))
 266         {
 267                 library_deinit();
 268                 exit(SS_RC_LIBSTRONGSWAN_INTEGRITY);
 269         }
 270         if (lib->integrity &&
 271                 !lib->integrity->check_file(lib->integrity, "pluto", argv[0]))
 272         {
 273                 fprintf(stderr, "integrity check of pluto failed\n");
 274                 library_deinit();
 275                 exit(SS_RC_DAEMON_INTEGRITY);
 276         }
 277         if (!libhydra_init())
 278         {
 279                 libhydra_deinit();
 280                 library_deinit();
 281                 exit(SS_RC_INITIALIZATION_FAILED);
 282         }
 283         options = options_create();
 284
 285         /* handle arguments */
 286         for (;;)
 287         {
 288 #       define DBG_OFFSET 256
 289                 static const struct option long_opts[] = {
 290                         /* name, has_arg, flag, val */
 291                         { "help", no_argument, NULL, 'h' },
 292                         { "version", no_argument, NULL, 'v' },
 293                         { "optionsfrom", required_argument, NULL, '+' },
 294                         { "nofork", no_argument, NULL, 'd' },
 295                         { "stderrlog", no_argument, NULL, 'e' },
 296                         { "noklips", no_argument, NULL, 'n' },
 297                         { "nocrsend", no_argument, NULL, 'c' },
 298                         { "strictcrlpolicy", no_argument, NULL, 'r' },
 299                         { "crlcheckinterval", required_argument, NULL, 'x'},
 300                         { "cachecrls", no_argument, NULL, 'C' },
 301                         { "uniqueids", no_argument, NULL, 'u' },
 302                         { "interface", required_argument, NULL, 'i' },
 303                         { "ikeport", required_argument, NULL, 'p' },
 304                         { "ctlbase", required_argument, NULL, 'b' },
 305                         { "secretsfile", required_argument, NULL, 's' },
 306                         { "foodgroupsdir", required_argument, NULL, 'f' },
 307                         { "perpeerlogbase", required_argument, NULL, 'P' },
 308                         { "perpeerlog", no_argument, NULL, 'l' },
 309                         { "policygroupsdir", required_argument, NULL, 'f' },
 310 #ifdef USE_LWRES
 311                         { "lwdnsq", required_argument, NULL, 'a' },
 312 #else /* !USE_LWRES */
 313                         { "adns", required_argument, NULL, 'a' },
 314 #endif /* !USE_LWRES */
 315                         { "pkcs11module", required_argument, NULL, 'm' },
 316                         { "pkcs11keepstate", no_argument, NULL, 'k' },
 317                         { "pkcs11initargs", required_argument, NULL, 'z' },
 318                         { "pkcs11proxy", no_argument, NULL, 'y' },
 319                         { "nat_traversal", no_argument, NULL, '1' },
 320                         { "keep_alive", required_argument, NULL, '2' },
 321                         { "force_keepalive", no_argument, NULL, '3' },
 322                         { "disable_port_floating", no_argument, NULL, '4' },
 323                         { "debug-natt", no_argument, NULL, '5' },
 324                         { "virtual_private", required_argument, NULL, '6' },
 325 #ifdef DEBUG
 326                         { "debug-none", no_argument, NULL, 'N' },
 327                         { "debug-all", no_argument, NULL, 'A' },
 328                         { "debug-raw", no_argument, NULL, DBG_RAW + DBG_OFFSET },
 329                         { "debug-crypt", no_argument, NULL, DBG_CRYPT + DBG_OFFSET },
 330                         { "debug-parsing", no_argument, NULL, DBG_PARSING + DBG_OFFSET },
 331                         { "debug-emitting", no_argument, NULL, DBG_EMITTING + DBG_OFFSET },
 332                         { "debug-control", no_argument, NULL, DBG_CONTROL + DBG_OFFSET },
 333                         { "debug-lifecycle", no_argument, NULL, DBG_LIFECYCLE + DBG_OFFSET },
 334                         { "debug-klips", no_argument, NULL, DBG_KLIPS + DBG_OFFSET },
 335                         { "debug-dns", no_argument, NULL, DBG_DNS + DBG_OFFSET },
 336                         { "debug-oppo", no_argument, NULL, DBG_OPPO + DBG_OFFSET },
 337                         { "debug-controlmore", no_argument, NULL, DBG_CONTROLMORE + DBG_OFFSET },
 338                         { "debug-private", no_argument, NULL, DBG_PRIVATE + DBG_OFFSET },
 339
 340                         { "impair-delay-adns-key-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_KEY_ANSWER + DBG_OFFSET },
 341                         { "impair-delay-adns-txt-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_TXT_ANSWER + DBG_OFFSET },
 342                         { "impair-bust-mi2", no_argument, NULL, IMPAIR_BUST_MI2 + DBG_OFFSET },
 343                         { "impair-bust-mr2", no_argument, NULL, IMPAIR_BUST_MR2 + DBG_OFFSET },
 344 #endif
 345                         { 0,0,0,0 }
 346                         };
 347                 /* Note: we don't like the way short options get parsed
 348                  * by getopt_long, so we simply pass an empty string as
 349                  * the list.  It could be "hvdenp:l:s:" "NARXPECK".
 350                  */
 351                 int c = getopt_long(argc, argv, "", long_opts, NULL);
 352
 353                 /* Note: "breaking" from case terminates loop */
 354                 switch (c)
 355                 {
 356                 case EOF:       /* end of flags */
 357                         break;
 358
 359                 case 0: /* long option already handled */
 360                         continue;
 361
 362                 case ':':       /* diagnostic already printed by getopt_long */
 363                 case '?':       /* diagnostic already printed by getopt_long */
 364                         usage("");
 365                         break;   /* not actually reached */
 366
 367                 case 'h':       /* --help */
 368                         usage(NULL);
 369                         break;      /* not actually reached */
 370
 371                 case 'v':       /* --version */
 372                         {
 373                                 const char **sp = ipsec_copyright_notice();
 374
 375                                 printf("strongSwan "VERSION"%s\n", compile_time_interop_options);
 376                                 for (; *sp != NULL; sp++)
 377                                         puts(*sp);
 378                         }
 379                         exit_pluto(0);
 380                         break;      /* not actually reached */
 381
 382                 case '+':       /* --optionsfrom <filename> */
 383                         if (!options->from(options, optarg, &argc, &argv, optind))
 384                         {
 385                                 exit_pluto(1);
 386                         }
 387                         continue;
 388
 389                 case 'd':       /* --nofork*/
 390                         fork_desired = FALSE;
 391                         continue;
 392
 393                 case 'e':       /* --stderrlog */
 394                         log_to_stderr_desired = TRUE;
 395                         continue;
 396
 397                 case 'n':       /* --noklips */
 398                         no_klips = TRUE;
 399                         continue;
 400
 401                 case 'c':       /* --nocrsend */
 402                         no_cr_send = TRUE;
 403                         continue;
 404
 405                 case 'r':       /* --strictcrlpolicy */
 406                         strict_crl_policy = TRUE;
 407                         continue;
 408
 409                 case 'x':       /* --crlcheckinterval <time>*/
 410                         if (optarg == NULL || !isdigit(optarg[0]))
 411                                 usage("missing interval time");
 412
 413                         {
 414                                 char *endptr;
 415                                 long interval = strtol(optarg, &endptr, 0);
 416
 417                                 if (*endptr != '\0' || endptr == optarg
 418                                 || interval <= 0)
 419                                         usage("<interval-time> must be a positive number");
 420                                 crl_check_interval = interval;
 421                         }
 422                         continue;
 423
 424                 case 'C':       /* --cachecrls */
 425                         cache_crls = TRUE;
 426                         continue;
 427
 428                 case 'u':       /* --uniqueids */
 429                         uniqueIDs = TRUE;
 430                         continue;
 431
 432                 case 'i':       /* --interface <ifname> */
 433                         if (!use_interface(optarg))
 434                                 usage("too many --interface specifications");
 435                         continue;
 436
 437                 case 'p':       /* --port <portnumber> */
 438                         if (optarg == NULL || !isdigit(optarg[0]))
 439                                 usage("missing port number");
 440
 441                         {
 442                                 char *endptr;
 443                                 long port = strtol(optarg, &endptr, 0);
 444
 445                                 if (*endptr != '\0' || endptr == optarg
 446                                 || port <= 0 || port > 0x10000)
 447                                         usage("<port-number> must be a number between 1 and 65535");
 448                                 pluto_port = port;
 449                         }
 450                         continue;
 451
 452                 case 'b':       /* --ctlbase <path> */
 453                         if (snprintf(ctl_addr.sun_path, sizeof(ctl_addr.sun_path)
 454                         , "%s%s", optarg, CTL_SUFFIX) == -1)
 455                                 usage("<path>" CTL_SUFFIX " too long for sun_path");
 456                         if (snprintf(info_addr.sun_path, sizeof(info_addr.sun_path)
 457                         , "%s%s", optarg, INFO_SUFFIX) == -1)
 458                                 usage("<path>" INFO_SUFFIX " too long for sun_path");
 459                         if (snprintf(pluto_lock, sizeof(pluto_lock)
 460                         , "%s%s", optarg, LOCK_SUFFIX) == -1)
 461                                 usage("<path>" LOCK_SUFFIX " must fit");
 462                         continue;
 463
 464                 case 's':       /* --secretsfile <secrets-file> */
 465                         shared_secrets_file = optarg;
 466                         continue;
 467
 468                 case 'f':       /* --policygroupsdir <policygroups-dir> */
 469                         policygroups_dir = optarg;
 470                         continue;
 471
 472                 case 'a':       /* --adns <pathname> */
 473                         pluto_adns_option = optarg;
 474                         continue;
 475
 476                 case 'm':       /* --pkcs11module <pathname> */
 477                         pkcs11_module_path = optarg;
 478                         continue;
 479
 480                 case 'k':       /* --pkcs11keepstate */
 481                         pkcs11_keep_state = TRUE;
 482                         continue;
 483
 484                 case 'y':       /* --pkcs11proxy */
 485                         pkcs11_proxy = TRUE;
 486                         continue;
 487
 488                 case 'z':       /* --pkcs11initargs */
 489                         pkcs11_init_args = optarg;
 490                         continue;
 491
 492 #ifdef DEBUG
 493                 case 'N':       /* --debug-none */
 494                         base_debugging = DBG_NONE;
 495                         continue;
 496
 497                 case 'A':       /* --debug-all */
 498                         base_debugging = DBG_ALL;
 499                         continue;
 500 #endif
 501
 502                 case 'P':       /* --perpeerlogbase */
 503                         base_perpeer_logdir = optarg;
 504                         continue;
 505
 506                 case 'l':
 507                         log_to_perpeer = TRUE;
 508                         continue;
 509
 510                 case '1':       /* --nat_traversal */
 511                         nat_traversal = TRUE;
 512                         continue;
 513                 case '2':       /* --keep_alive */
 514                         keep_alive = atoi(optarg);
 515                         continue;
 516                 case '3':       /* --force_keepalive */
 517                         force_keepalive = TRUE;
 518                         continue;
 519                 case '4':       /* --disable_port_floating */
 520                         nat_t_spf = FALSE;
 521                         continue;
 522                 case '5':       /* --debug-nat_t */
 523                         base_debugging |= DBG_NATT;
 524                         continue;
 525                 case '6':       /* --virtual_private */
 526                         virtual_private = optarg;
 527                         continue;
 528
 529                 default:
 530 #ifdef DEBUG
 531                         if (c >= DBG_OFFSET)
 532                         {
 533                                 base_debugging |= c - DBG_OFFSET;
 534                                 continue;
 535                         }
 536 #       undef DBG_OFFSET
 537 #endif
 538                         bad_case(c);
 539                 }
 540                 break;
 541         }
 542         if (optind != argc)
 543                 usage("unexpected argument");
 544         reset_debugging();
 545         lockfd = create_lock();
 546
 547         /* select between logging methods */
 548
 549         if (log_to_stderr_desired)
 550         {
 551                 log_to_syslog = FALSE;
 552         }
 553         else
 554         {
 555                 log_to_stderr = FALSE;
 556         }
 557
 558         /* set the logging function of pfkey debugging */
 559 #ifdef DEBUG
 560         pfkey_debug_func = DBG_log;
 561 #else
 562         pfkey_debug_func = NULL;
 563 #endif
 564
 565         /* create control socket.
 566          * We must create it before the parent process returns so that
 567          * there will be no race condition in using it.  The easiest
 568          * place to do this is before the daemon fork.
 569          */
 570         {
 571                 err_t ugh = init_ctl_socket();
 572
 573                 if (ugh != NULL)
 574                 {
 575                         fprintf(stderr, "pluto: %s", ugh);
 576                         exit_pluto(1);
 577                 }
 578         }
 579
 580         /* If not suppressed, do daemon fork */
 581
 582         if (fork_desired)
 583         {
 584                 {
 585                         pid_t pid = fork();
 586
 587                         if (pid < 0)
 588                         {
 589                                 int e = errno;
 590
 591                                 fprintf(stderr, "pluto: fork failed (%d %s)\n",
 592                                         errno, strerror(e));
 593                                 exit_pluto(1);
 594                         }
 595
 596                         if (pid != 0)
 597                         {
 598                                 /* parent: die, after filling PID into lock file.
 599                                  * must not use exit_pluto: lock would be removed!
 600                                  */
 601                                 exit(fill_lock(lockfd, pid)? 0 : 1);
 602                         }
 603                 }
 604
 605                 if (setsid() < 0)
 606                 {
 607                         int e = errno;
 608
 609                         fprintf(stderr, "setsid() failed in main(). Errno %d: %s\n",
 610                                 errno, strerror(e));
 611                         exit_pluto(1);
 612                 }
 613         }
 614         else
 615         {
 616                 /* no daemon fork: we have to fill in lock file */
 617                 (void) fill_lock(lockfd, getpid());
 618                 fprintf(stdout, "Pluto initialized\n");
 619                 fflush(stdout);
 620         }
 621
 622         /* Close everything but ctl_fd and (if needed) stderr.
 623          * There is some danger that a library that we don't know
 624          * about is using some fd that we don't know about.
 625          * I guess we'll soon find out.
 626          */
 627         {
 628                 int i;
 629
 630                 for (i = getdtablesize() - 1; i >= 0; i--)  /* Bad hack */
 631                 {
 632                         if ((!log_to_stderr || i != 2) && i != ctl_fd)
 633                                 close(i);
 634                 }
 635
 636                 /* make sure that stdin, stdout, stderr are reserved */
 637                 if (open("/dev/null", O_RDONLY) != 0)
 638                         abort();
 639                 if (dup2(0, 1) != 1)
 640                         abort();
 641                 if (!log_to_stderr && dup2(0, 2) != 2)
 642                         abort();
 643         }
 644
 645         init_constants();
 646         init_log("pluto");
 647
 648         /* Note: some scripts may look for this exact message -- don't change
 649          * ipsec barf was one, but it no longer does.
 650          */
 651         plog("Starting IKEv1 pluto daemon (strongSwan "VERSION")%s",
 652                  compile_time_interop_options);
 653
 654         if (lib->integrity)
 655         {
 656                 plog("integrity tests enabled:");
 657                 plog("lib    'libstrongswan': passed file and segment integrity tests");
 658                 plog("lib    'libhydra': passed file and segment integrity tests");
 659                 plog("daemon 'pluto': passed file integrity test");
 660         }
 661
 662         /* load plugins, further infrastructure may need it */
 663         if (!lib->plugins->load(lib->plugins, NULL,
 664                         lib->settings->get_str(lib->settings, "pluto.load", PLUGINS)))
 665         {
 666                 exit(SS_RC_INITIALIZATION_FAILED);
 667         }
 668         print_plugins();
 669
 670         init_builder();
 671         if (!init_secret() || !init_crypto())
 672         {
 673                 plog("initialization failed - aborting pluto");
 674                 exit_pluto(SS_RC_INITIALIZATION_FAILED);
 675         }
 676         init_nat_traversal(nat_traversal, keep_alive, force_keepalive, nat_t_spf);
 677         init_virtual_ip(virtual_private);
 678         scx_init(pkcs11_module_path, pkcs11_init_args);
 679         xauth_init();
 680         init_states();
 681         init_demux();
 682         init_kernel();
 683         init_adns();
 684         init_myid();
 685         fetch_initialize();
 686         ac_initialize();
 687
 688         /* drop unneeded capabilities and change UID/GID */
 689         prctl(PR_SET_KEEPCAPS, 1);
 690
 691 #ifdef IPSEC_GROUP
 692         {
 693                 struct group group, *grp;
 694         char buf[1024];
 695
 696                 if (getgrnam_r(IPSEC_GROUP, &group, buf, sizeof(buf), &grp) != 0 ||
 697                                 grp == NULL || setgid(grp->gr_gid) != 0)
 698                 {
 699                         plog("unable to change daemon group");
 700                         abort();
 701                 }
 702         }
 703 #endif
 704 #ifdef IPSEC_USER
 705         {
 706                 struct passwd passwd, *pwp;
 707         char buf[1024];
 708
 709                 if (getpwnam_r(IPSEC_USER, &passwd, buf, sizeof(buf), &pwp) != 0 ||
 710                                 pwp == NULL || setuid(pwp->pw_uid) != 0)
 711                 {
 712                         plog("unable to change daemon user");
 713                         abort();
 714                 }
 715                 }
 716 #endif
 717
 718 #ifdef CAPABILITIES
 719         caps = cap_init();
 720         cap_set_flag(caps, CAP_EFFECTIVE, 2, keep, CAP_SET);
 721         cap_set_flag(caps, CAP_INHERITABLE, 2, keep, CAP_SET);
 722         cap_set_flag(caps, CAP_PERMITTED, 2, keep, CAP_SET);
 723         if (cap_set_proc(caps) != 0)
 724         {
 725                 plog("unable to drop daemon capabilities");
 726                 abort();
 727         }
 728         cap_free(caps);
 729 #endif /* CAPABILITIES */
 730
 731         /* loading X.509 CA certificates */
 732         load_authcerts("ca", CA_CERT_PATH, X509_CA);
 733         /* loading X.509 AA certificates */
 734         load_authcerts("aa", AA_CERT_PATH, X509_AA);
 735         /* loading X.509 OCSP certificates */
 736         load_authcerts("ocsp", OCSP_CERT_PATH, X509_OCSP_SIGNER);
 737         /* loading X.509 CRLs */
 738         load_crls();
 739         /* loading attribute certificates (experimental) */
 740         ac_load_certs();
 741
 742         daily_log_event();
 743         call_server();
 744         return -1;  /* Shouldn't ever reach this */
 745 }
 746
 747 /* leave pluto, with status.
 748  * Once child is launched, parent must not exit this way because
 749  * the lock would be released.
 750  *
 751  *  0 OK
 752  *  1 general discomfort
 753  * 10 lock file exists
 754  */
 755 void exit_pluto(int status)
 756 {
 757         reset_globals();    /* needed because we may be called in odd state */
 758         free_preshared_secrets();
 759         free_remembered_public_keys();
 760         delete_every_connection();
 761         fetch_finalize();           /* stop fetching thread */
 762         free_crl_fetch();           /* free chain of crl fetch requests */
 763         free_ocsp_fetch();          /* free chain of ocsp fetch requests */
 764         free_authcerts();           /* free chain of X.509 authority certificates */
 765         free_crls();                /* free chain of X.509 CRLs */
 766         free_ca_infos();            /* free chain of X.509 CA information records */
 767         free_ocsp();                /* free ocsp cache */
 768         free_ifaces();
 769         ac_finalize();              /* free X.509 attribute certificates */
 770         scx_finalize();             /* finalize and unload PKCS #11 module */
 771         xauth_finalize();           /* finalize and unload XAUTH module */
 772         stop_adns();
 773         free_md_pool();
 774         free_crypto();
 775         free_myid();                /* free myids */
 776         free_events();              /* free remaining events */
 777         free_vendorid();            /* free all vendor id records */
 778         free_builder();
 779         delete_lock();
 780         options->destroy(options);
 781         libhydra_deinit();
 782         library_deinit();
 783         close_log();
 784         exit(status);
 785 }
 786
 787 /*
 788  * Local Variables:
 789  * c-basic-offset:4
 790  * c-style: pluto
 791  * End:
 792  */