Beispiel #1
0
/**
 * \brief   Drop the previliges of the main thread
 */
void SCDropMainThreadCaps(uint32_t userid, uint32_t groupid)
{
    if (sc_set_caps == FALSE)
        return;

    capng_clear(CAPNG_SELECT_BOTH);

    if (run_mode == MODE_PFRING || run_mode == MODE_NFQ) {
        capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE|CAPNG_PERMITTED,
                      CAP_NET_RAW,            /* needed for pcap live mode */
                      CAP_NET_ADMIN,          /* needed for nfqueue inline mode */
                      -1);
    } else if (run_mode == MODE_PCAP_DEV) {
        capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE|CAPNG_PERMITTED,
                      CAP_NET_RAW,            /* needed for pcap live mode */
                      -1);
    }

    if (capng_change_id(userid, groupid, CAPNG_DROP_SUPP_GRP |
            CAPNG_CLEAR_BOUNDING) < 0)
    {
        SCLogError(SC_ERR_CHANGING_CAPS_FAILED, "capng_change_id for main thread"
                " failed");
        exit(EXIT_FAILURE);
    }

    SCLogInfo("dropped the caps for main thread");
}
Beispiel #2
0
void parent_init(int reqfd, int msgfd, pid_t child) {

    // events
    struct event ev_cmd, ev_msg;
    struct event ev_sigchld, ev_sigint, ev_sigterm,  ev_sighup;

#ifdef HAVE_LIBCAP
    // capabilities
    cap_t caps;
#endif /* HAVE_LIBCAP */

    // init the queues
    TAILQ_INIT(&rawfds);

    // proctitle
    setproctitle("parent [priv]");

    // setup global sockets
    sock = my_socket(AF_INET, SOCK_DGRAM, 0);
    mfd = msgfd;

    // debug
    if (options & OPT_DEBUG) {
	dfd = STDOUT_FILENO;
	my_pcap_init(dfd);
#if HAVE_LIBCAP_NG
    } else {
	capng_clear(CAPNG_SELECT_BOTH);
	capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE|CAPNG_PERMITTED, CAP_KILL,
		    CAP_NET_ADMIN, CAP_NET_RAW, CAP_NET_BROADCAST, -1);
	if (capng_apply(CAPNG_SELECT_BOTH) == -1)
	    my_fatal("unable to set capabilities");
#elif HAVE_LIBCAP
    } else {
Beispiel #3
0
static void
switch_environment(void)
{
#ifdef HAVE_GETEUID
    if ((runas_string || chroot_string) && geteuid() != 0)
	errx(1, "no running as root, can't switch user/chroot");

    if (chroot_string) {
	if (chroot(chroot_string))
	    err(1, "chroot(%s) failed", chroot_string);
	if (chdir("/"))
	    err(1, "chdir(/) after chroot failed");
    }

    if (runas_string) {
	struct passwd *pw;

	pw = getpwnam(runas_string);
	if (pw == NULL)
	    errx(1, "unknown user %s", runas_string);

	if (initgroups(pw->pw_name, pw->pw_gid) < 0)
	    err(1, "initgroups failed");

#ifndef HAVE_CAPNG
	if (setgid(pw->pw_gid) < 0)
	    err(1, "setgid(%s) failed", runas_string);

	if (setuid(pw->pw_uid) < 0)
	    err(1, "setuid(%s)", runas_string);
#else
	capng_clear (CAPNG_EFFECTIVE | CAPNG_PERMITTED);
	if (capng_updatev (CAPNG_ADD, CAPNG_EFFECTIVE | CAPNG_PERMITTED,
	                   CAP_NET_BIND_SERVICE, CAP_SETPCAP, -1) < 0)
	    err(1, "capng_updateev");

	if (capng_change_id(pw->pw_uid, pw->pw_gid,
	                    CAPNG_CLEAR_BOUNDING) < 0)
	    err(1, "capng_change_id(%s)", runas_string);
#endif
    }
#endif
}
Beispiel #4
0
/*
 * This is running as the 'init' process insid the container.
 * It removes some capabilities that could be dangerous to
 * host system, since they are not currently "containerized"
 */
static int lxcContainerDropCapabilities(void)
{
#if HAVE_CAPNG
    int ret;

    capng_get_caps_process();

    if ((ret = capng_updatev(CAPNG_DROP,
                             CAPNG_EFFECTIVE | CAPNG_PERMITTED |
                             CAPNG_INHERITABLE | CAPNG_BOUNDING_SET,
                             CAP_SYS_BOOT, /* No use of reboot */
                             CAP_SYS_MODULE, /* No kernel module loading */
                             CAP_SYS_TIME, /* No changing the clock */
                             CAP_AUDIT_CONTROL, /* No messing with auditing status */
                             CAP_MAC_ADMIN, /* No messing with LSM config */
                             -1 /* sentinal */)) < 0) {
        lxcError(VIR_ERR_INTERNAL_ERROR,
                 _("Failed to remove capabilities: %d"), ret);
        return -1;
    }

    if ((ret = capng_apply(CAPNG_SELECT_BOTH)) < 0) {
        lxcError(VIR_ERR_INTERNAL_ERROR,
                 _("Failed to apply capabilities: %d"), ret);
        return -1;
    }

    /* We do not need to call capng_lock() in this case. The bounding
     * set restriction will prevent them reacquiring sys_boot/module/time,
     * etc which is all that matters for the container. Once inside the
     * container it is fine for SECURE_NOROOT / SECURE_NO_SETUID_FIXUP to
     * be unmasked  - they can never escape the bounding set. */

#else
    VIR_WARN0("libcap-ng support not compiled in, unable to clear capabilities");
#endif
    return 0;
}
Beispiel #5
0
int main(int argc, char **argv)
{
#if 0
	NSS_NoDB_Init(".");
	if (!test_aes_cbc(&algo_aes_cbc)) {
		printf("aes-cbc failed\n");
	}
	if (!test_camellia_cbc(&algo_camellia_cbc)) {
		printf("camellia-cbc failed\n");
	}
	if (!test_aes_ctr(&algo_aes_ctr)) {
		printf("aes-ctr failed\n");
	}
	exit(0);
#endif

	int lockfd;

	/*
	 * We read the intentions for how to log from command line options
	 * and the config file. Then we prepare to be able to log, but until
	 * then log to stderr (better then nothing). Once we are ready to
	 * actually do loggin according to the methods desired, we set the
	 * variables for those methods
	 */
	bool log_to_stderr_desired = FALSE;
	bool log_to_file_desired = FALSE;

	{
		int i;

		/* MUST BE BEFORE ANY allocs */
		for (i = 1; i < argc; ++i) {
			if (streq(argv[i], "--leak-detective"))
				leak_detective = TRUE;
		}
	}

	pluto_name = argv[0];

	coredir = clone_str("/var/run/pluto", "coredir in main()");
	pluto_vendorid = clone_str(ipsec_version_vendorid(), "vendorid in main()");

	unsigned int keep_alive = 0;

	/* Overridden by virtual_private= in ipsec.conf */
	char *virtual_private = NULL;

	libreswan_passert_fail = passert_fail;

	/* handle arguments */
	for (;; ) {
		/*
		 * Note: we don't like the way short options get parsed
		 * by getopt_long, so we simply pass an empty string as
		 * the list.  It could be "hvdenp:l:s:" "NARXPECK".
		 */
		int longindex = -1;
		int c = getopt_long(argc, argv, "", long_opts, &longindex);
		const char *optname = NULL;
		err_t ugh = NULL;	/* complaint from case */
		unsigned long u = 0;	/* scratch for case */

		if (longindex != -1) {
			const char *optmeta;
			optname = long_opts[longindex].name;

			optmeta = optname + strlen(optname) + 1;	/* after '\0' */
			switch (optmeta[0]) {
			case '_':
				libreswan_log("warning: option \"--%s\" with '_' in its name is obsolete; use '-'",
					optname);
				break;
			case '>':
				libreswan_log("warning: option \"--%s\" is obsolete; use \"--%s\"",
					optname, optmeta + 1);
				break;
			case '!':
				libreswan_log("warning: option \"--%s\" is obsolete; ignored",
					optname);
				continue;	/* ignore it! */
			}
		}

		/* Note: "breaking" from case terminates loop */
		switch (c) {
		case EOF:	/* end of flags */
			break;

		case 0:
			/*
			 * Long option already handled by getopt_long.
			 * Not currently used since we always set flag to NULL.
			 */
			continue;

		case ':':	/* diagnostic already printed by getopt_long */
		case '?':	/* diagnostic already printed by getopt_long */
			invocation_fail(NULL);
			break;

		case 'h':	/* --help */
			usage();
			break;	/* not actually reached */

		case 'X':	/* --leak-detective */
			/*
			 * This flag was already processed at the start of main()
			 * because leak_detective must be immutable from before
			 * the first alloc().
			 * If this option is specified, we must have already
			 * set it at the start of main(), so assert it.
			 */
			passert(leak_detective);
			continue;

		case 'C':	/* --coredir */
			pfree(coredir);
			coredir = clone_str(optarg, "coredir via getopt");
			continue;

		case 'V':	/* --vendorid */
			pfree(pluto_vendorid);
			coredir = clone_str(optarg, "pluto_vendorid via getopt");
			continue;

		case 'S':	/* --statsdir */
			pfreeany(pluto_stats_binary);
			pluto_stats_binary = clone_str(optarg, "statsbin");
			continue;

		case 'v':	/* --version */
			printf("%s%s\n", ipsec_version_string(),
				compile_time_interop_options);
			/* not exit_pluto because we are not initialized yet */
			exit(0);
			break;	/* not actually reached */

		case 'j':	/* --nhelpers */
			if (streq(optarg, "-1")) {
				nhelpers = -1;
			} else {
				ugh = ttoulb(optarg, 0, 10, 1000, &u);
				if (ugh != NULL)
					break;

				nhelpers = u;
			}
			continue;
		case 'c':	/* --seedbits */
			pluto_nss_seedbits = atoi(optarg);
			if (pluto_nss_seedbits == 0) {
				printf("pluto: seedbits must be an integer > 0");
				/* not exit_pluto because we are not initialized yet */
				exit(PLUTO_EXIT_NSS_FAIL);
			}
			continue;

#ifdef HAVE_LABELED_IPSEC
		case 'w':	/* --secctx-attr-type */
			ugh = ttoulb(optarg, 0, 0, 0xFFFF, &u);
			if (ugh != NULL)
				break;
			if (u != SECCTX && u != ECN_TUNNEL_or_old_SECCTX) {
				ugh = "must be a positive 32001 (default) or 10 (for backward compatibility)";
				break;
			}
			secctx_attr_type = u;
			continue;
#endif

		case 'd':	/* --nofork*/
			fork_desired = FALSE;
			continue;

		case 'e':	/* --stderrlog */
			log_to_stderr_desired = TRUE;
			continue;

		case 'g':	/* --logfile */
			pluto_log_file = optarg;
			log_to_file_desired = TRUE;
			continue;

		case 't':	/* --log-no-time */
			log_with_timestamp = FALSE;
			continue;

		case '7':	/* --log-no-append */
			log_append = FALSE;
			continue;

		case '8':	/* --drop-oppo-null */
			pluto_drop_oppo_null = TRUE;
			continue;

		case '9':	/* --expire-bare-shunt <interval> */
			ugh = ttoulb(optarg, 0, 10, 1000, &u);
			if (ugh != NULL)
				break;
			bare_shunt_interval = u;
			continue;

		case 'k':	/* --use-klips */
			kern_interface = USE_KLIPS;
			continue;

		case 'L':	/* --listen ip_addr */
		{
			ip_address lip;
			err_t e = ttoaddr(optarg, 0, AF_UNSPEC, &lip);

			if (e != NULL) {
				/*
				 *??? should we continue on failure?
				 * If not, use ugh mechanism.
				 */
				libreswan_log(
					"invalid listen argument ignored: %s\n",
					e);
			} else {
				pluto_listen =
					clone_str(optarg, "pluto_listen");
				libreswan_log(
					"bind() will be filtered for %s\n",
					pluto_listen);
			}
		}
			continue;

		case 'M':	/* --use-mast */
			kern_interface = USE_MASTKLIPS;
			continue;

		case 'F':	/* --use-bsdkame */
			kern_interface = USE_BSDKAME;
			continue;

		case 'K':	/* --use-netkey */
			kern_interface = USE_NETKEY;
			continue;

		case 'n':	/* --use-nostack */
			kern_interface = NO_KERNEL;
			continue;

		case 'D':	/* --force-busy */
			pluto_ddos_mode = DDOS_FORCE_BUSY;
			continue;
		case 'U':	/* --force-unlimited */
			pluto_ddos_mode = DDOS_FORCE_UNLIMITED;
			continue;

		case 'Z':	/* --curl-iface */
			curl_iface = optarg;
			continue;

		case 'I':	/* --curl-timeout */
			ugh = ttoulb(optarg, 0, 10, 0xFFFF, &u);
			if (ugh != NULL)
				break;
			if (u <= 0) {
				ugh = "must not be < 1";
				break;
			}
			curl_timeout = u;
			continue;

		case 'r':	/* --strictcrlpolicy */
			strict_crl_policy = TRUE;
			continue;

		case 'o':
			strict_ocsp_policy = TRUE;
			continue;

		case 'O':
			ocsp_enable = TRUE;
			continue;

		case 'Y':
			ocsp_default_uri = optarg;
			continue;

		case 'J':
			ocsp_trust_name = optarg;
			continue;

		case 'T':	/* --ocsp_timeout <seconds> */
			ugh = ttoulb(optarg, 0, 10, 0xFFFF, &u);
			if (ugh != NULL)
				break;
			if (u == 0) {
				ugh = "must not be 0";
				break;
			}
			ocsp_timeout = u;
			continue;

		case 'x':	/* --crlcheckinterval <seconds> */
			ugh = ttoulb(optarg, 0, 10, TIME_T_MAX, &u);
			if (ugh != NULL)
				break;
			crl_check_interval = deltatime(u);
			continue;

		case 'u':	/* --uniqueids */
			uniqueIDs = TRUE;
			continue;

		case 'i':	/* --interface <ifname|ifaddr> */
			if (!use_interface(optarg)) {
				ugh = "too many --interface specifications";
				break;
			}
			continue;

		/*
		 * This option does not really work, as this is the "left"
		 * site only, you also need --to --ikeport again later on
		 * It will result in: yourport -> 500, still not bypassing
		 * filters
		 */
		case 'p':	/* --ikeport <portnumber> */
			ugh = ttoulb(optarg, 0, 10, 0xFFFF, &u);
			if (ugh != NULL)
				break;
			if (u == 0) {
				ugh = "must not be 0";
				break;
			}
			pluto_port = u;
			continue;

		case 'q':	/* --natikeport <portnumber> */
			ugh = ttoulb(optarg, 0, 10, 0xFFFF, &u);
			if (ugh != NULL)
				break;
			if (u == 0) {
				ugh = "must not be 0";
				break;
			}
			pluto_nat_port = u;
			continue;

		case 'b':	/* --ctlbase <path> */
			/*
			 * ??? work to be done here:
			 *
			 * snprintf returns the required space if there
			 * isn't enough, not -1.
			 * -1 indicates another kind of error.
			 *
			 * This appears to be the only place where the
			 * ctlbase value is used yet it is set elsewhere.
			 * (This isn't clear -- it may be OK.)
			 */
			ctlbase = optarg;
			if (snprintf(ctl_addr.sun_path,
					sizeof(ctl_addr.sun_path),
					"%s%s", ctlbase, CTL_SUFFIX) == -1) {
				ugh = "<path>" CTL_SUFFIX " too long for sun_path";
				break;
			}

			if (snprintf(info_addr.sun_path,
					sizeof(info_addr.sun_path),
					"%s%s", ctlbase, INFO_SUFFIX) == -1) {
				ugh = "<path>" INFO_SUFFIX " too long for sun_path";
				break;
			}

			if (snprintf(pluto_lock, sizeof(pluto_lock),
					"%s%s", ctlbase, LOCK_SUFFIX) == -1) {
				ugh = "<path>" LOCK_SUFFIX " must fit";
				break;
			}
			continue;

		case 's':	/* --secretsfile <secrets-file> */
			lsw_conf_secretsfile(optarg);
			continue;

		case 'f':	/* --ipsecdir <ipsec-dir> */
			lsw_init_ipsecdir(optarg);
			continue;

		case 'N':	/* --debug-none */
			base_debugging = DBG_NONE;
			continue;

		case 'A':	/* --debug-all */
			base_debugging = DBG_ALL;
			continue;

		case 'P':	/* --perpeerlogbase */
			base_perpeer_logdir = optarg;
			continue;

		case 'l':	/* --perpeerlog */
			log_to_perpeer = TRUE;
			continue;

		case '2':	/* --keep-alive <delay_secs> */
			ugh = ttoulb(optarg, 0, 10, secs_per_day, &u);
			if (ugh != NULL)
				break;
			keep_alive = u;
			continue;

		case '5':	/* --debug-nat-t */
			base_debugging |= DBG_NATT;
			continue;
		case '6':	/* --virtual-private */
			virtual_private = optarg;
			continue;

		case 'z':	/* --config */
		{
			/*
			 * Config struct to variables mapper. This will
			 * overwrite all previously set options. Keep this
			 * in the same order as long_opts[] is.
			 */
			struct starter_config *cfg = read_cfg_file(optarg);

			/* leak */
			set_cfg_string(&pluto_log_file,
				cfg->setup.strings[KSF_PLUTOSTDERRLOG]);
			if (pluto_log_file != NULL)
				log_to_syslog = FALSE;
			/* plutofork= no longer supported via config file */
			log_with_timestamp =
				cfg->setup.options[KBF_PLUTOSTDERRLOGTIME];
			log_append = cfg->setup.options[KBF_PLUTOSTDERRLOGAPPEND];
			pluto_drop_oppo_null = cfg->setup.options[KBF_DROP_OPPO_NULL];
			pluto_ddos_mode = cfg->setup.options[KBF_DDOS_MODE];
			if (cfg->setup.options[KBF_FORCEBUSY]) {
				/* force-busy is obsoleted, translate to ddos-mode= */
				pluto_ddos_mode = cfg->setup.options[KBF_DDOS_MODE] = DDOS_FORCE_BUSY;
			}
			/* ddos-ike-threshold and max-halfopen-ike */
			pluto_ddos_threshold = cfg->setup.options[KBF_DDOS_IKE_THRESHOLD];
			pluto_max_halfopen = cfg->setup.options[KBF_MAX_HALFOPEN_IKE];

			strict_crl_policy =
				cfg->setup.options[KBF_STRICTCRLPOLICY];

			pluto_shunt_lifetime = deltatime(cfg->setup.options[KBF_SHUNTLIFETIME]);

			strict_ocsp_policy =
				cfg->setup.options[KBF_STRICTOCSPPOLICY];

			ocsp_enable = cfg->setup.options[KBF_OCSPENABLE];

			set_cfg_string(&ocsp_default_uri,
				       cfg->setup.strings[KSF_OCSPURI]);

			ocsp_timeout = cfg->setup.options[KBF_OCSPTIMEOUT];

			set_cfg_string(&ocsp_trust_name,
				       cfg->setup.strings[KSF_OCSPTRUSTNAME]);

			crl_check_interval = deltatime(
				cfg->setup.options[KBF_CRLCHECKINTERVAL]);
			uniqueIDs = cfg->setup.options[KBF_UNIQUEIDS];
			/*
			 * We don't check interfaces= here because that part
			 * has been dealt with in _stackmanager before we
			 * started
			 */
			set_cfg_string(&pluto_listen,
				cfg->setup.strings[KSF_LISTEN]);

			/* --ikeport */
			pluto_port = cfg->setup.options[KBF_IKEPORT];

			/* --nflog-all */
			/* only causes nflog nmber to show in ipsec status */
			pluto_nflog_group = cfg->setup.options[KBF_NFLOG_ALL];

			/* only causes nflog nmber to show in ipsec status */
			pluto_xfrmlifetime = cfg->setup.options[KBF_XFRMLIFETIME];

			/* no config option: ctlbase */
			/* --secrets */
			if (cfg->setup.strings[KSF_SECRETSFILE] &&
			    *cfg->setup.strings[KSF_SECRETSFILE]) {
				lsw_conf_secretsfile(cfg->setup.strings[KSF_SECRETSFILE]);
			}
			if (cfg->setup.strings[KSF_IPSECDIR] != NULL &&
				*cfg->setup.strings[KSF_IPSECDIR] != 0) {
				/* --ipsecdir */
				lsw_init_ipsecdir(cfg->setup.strings[KSF_IPSECDIR]);
			}

			/* --perpeerlog */
			log_to_perpeer = cfg->setup.options[KBF_PERPEERLOG];
			if (log_to_perpeer) {
				/* --perpeerlogbase */
				if (cfg->setup.strings[KSF_PERPEERDIR]) {
					set_cfg_string(&base_perpeer_logdir,
						cfg->setup.strings[KSF_PERPEERDIR]);
				} else {
					base_perpeer_logdir = clone_str("/var/log/pluto/", "perpeer_logdir");
				}
			}

			if (cfg->setup.strings[KSF_CURLIFACE]) {
				pfreeany(curl_iface);
				/* curl-iface= */
				curl_iface = clone_str(cfg->setup.strings[KSF_CURLIFACE],
						"curl-iface= via --config");
			}

			if (cfg->setup.options[KBF_CURLTIMEOUT])
				curl_timeout = cfg->setup.options[KBF_CURLTIMEOUT];

			if (cfg->setup.strings[KSF_DUMPDIR]) {
				pfree(coredir);
				/* dumpdir= */
				coredir = clone_str(cfg->setup.strings[KSF_DUMPDIR],
						"coredir via --config");
			}
			/* --vendorid */
			if (cfg->setup.strings[KSF_MYVENDORID]) {
				pfree(pluto_vendorid);
				pluto_vendorid = clone_str(cfg->setup.strings[KSF_MYVENDORID],
						"pluto_vendorid via --config");
			}

			/* no config option: pluto_adns_option */

			if (cfg->setup.strings[KSF_STATSBINARY] != NULL) {
				if (access(cfg->setup.strings[KSF_STATSBINARY], X_OK) == 0) {
					pfreeany(pluto_stats_binary);
					/* statsbin= */
					pluto_stats_binary = clone_str(cfg->setup.strings[KSF_STATSBINARY], "statsbin via --config");
					libreswan_log("statsbinary set to %s", pluto_stats_binary);
				} else {
					libreswan_log("statsbinary= '%s' ignored - file does not exist or is not executable",
						pluto_stats_binary);
				}
			}

			pluto_nss_seedbits = cfg->setup.options[KBF_SEEDBITS];
			pluto_nat_port =
				cfg->setup.options[KBF_NATIKEPORT];
			keep_alive = cfg->setup.options[KBF_KEEPALIVE];

			set_cfg_string(&virtual_private,
				cfg->setup.strings[KSF_VIRTUALPRIVATE]);

			nhelpers = cfg->setup.options[KBF_NHELPERS];
#ifdef HAVE_LABELED_IPSEC
			secctx_attr_type = cfg->setup.options[KBF_SECCTX];
#endif
			base_debugging = cfg->setup.options[KBF_PLUTODEBUG];

			char *protostack = cfg->setup.strings[KSF_PROTOSTACK];

			if (protostack == NULL || *protostack == '\0') {
				kern_interface = USE_NETKEY;
			} else if (streq(protostack, "none")) {
				kern_interface = NO_KERNEL;
			} else if (streq(protostack, "auto")) {
				libreswan_log(
					"The option protostack=auto is obsoleted, falling back to protostack=netkey\n");
				kern_interface = USE_NETKEY;
			} else if (streq(protostack, "klips")) {
				kern_interface = USE_KLIPS;
			} else if (streq(protostack, "mast")) {
				kern_interface = USE_MASTKLIPS;
			} else if (streq(protostack, "netkey") ||
				streq(protostack, "native")) {
				kern_interface = USE_NETKEY;
			} else if (streq(protostack, "bsd") ||
				streq(protostack, "kame") ||
				streq(protostack, "bsdkame")) {
				kern_interface = USE_BSDKAME;
			} else if (streq(protostack, "win2k")) {
				kern_interface = USE_WIN2K;
			}

			confread_free(cfg);
			continue;
		}

		default:
			if (DBG_OFFSET <= c &&
			    c < DBG_OFFSET + IMPAIR_roof_IX) {
				base_debugging |= LELEM(c - DBG_OFFSET);
				continue;
			}
			bad_case(c);
		}
		/* if ugh is set, bail with diagnostic */
		if (ugh != NULL) {
			char mess[200];

			if (longindex == -1) {
				snprintf(mess, sizeof(mess), "unknown option: %s",
					ugh);
			} else if (optarg == NULL) {
				snprintf(mess, sizeof(mess), "--%s option: %s",
					optname, ugh);
			} else {
				snprintf(mess, sizeof(mess), "--%s \"%s\" option: %s",
					optname, optarg, ugh);
			}
			invocation_fail(mess);
		}
		break;
	}
	if (optind != argc)
		invocation_fail("unexpected argument");
	reset_debugging();

	if (chdir(coredir) == -1) {
		int e = errno;

		libreswan_log("pluto: warning: chdir(\"%s\") to dumpdir failed (%d: %s)",
			coredir, e, strerror(e));
	}

	oco = lsw_init_options();
	lockfd = create_lock();

	/* select between logging methods */

	if (log_to_stderr_desired || log_to_file_desired)
		log_to_syslog = FALSE;
	if (!log_to_stderr_desired)
		log_to_stderr = FALSE;

#if 0
	if (kernel_ops->set_debug != NULL)
		(*kernel_ops->set_debug)(cur_debugging, DBG_log, DBG_log);

#endif

	/*
	 * create control socket.
	 * We must create it before the parent process returns so that
	 * there will be no race condition in using it.  The easiest
	 * place to do this is before the daemon fork.
	 */
	{
		err_t ugh = init_ctl_socket();

		if (ugh != NULL) {
			fprintf(stderr, "pluto: FATAL: %s", ugh);
			exit_pluto(PLUTO_EXIT_SOCKET_FAIL);
		}
	}

	/* If not suppressed, do daemon fork */
	if (fork_desired) {
#if USE_DAEMON
		if (daemon(TRUE, TRUE) < 0) {
			fprintf(stderr, "pluto: FATAL: daemon failed (%d %s)\n",
				errno, strerror(errno));
			exit_pluto(PLUTO_EXIT_FORK_FAIL);
		}
		/*
		 * Parent just exits, so need to fill in our own PID
		 * file.  This is racy, since the file won't be
		 * created until after the parent has exited.
		 *
		 * Since "ipsec start" invokes pluto with --nofork, it
		 * is probably safer to leave this feature disabled
		 * then implement it using the daemon call.
		 */
		(void) fill_lock(lockfd, getpid());
#elif USE_FORK
		{
			pid_t pid = fork();

			if (pid < 0) {
				int e = errno;

				fprintf(stderr, "pluto: FATAL: fork failed (%d %s)\n",
					errno, strerror(e));
				exit_pluto(PLUTO_EXIT_FORK_FAIL);
			}

			if (pid != 0) {
				/*
				 * parent: die, after filling PID into lock
				 * file.
				 * must not use exit_pluto: lock would be
				 * removed!
				 */
				exit(fill_lock(lockfd, pid) ? 0 : 1);
			}
		}
#else
		fprintf(stderr, "pluto: FATAL: fork/daemon not supported\n");
		exit_pluto(PLUTO_EXIT_FORK_FAIL);		
#endif
		if (setsid() < 0) {
			int e = errno;

			fprintf(stderr,
				"FATAL: setsid() failed in main(). Errno %d: %s\n",
				errno, strerror(e));
			exit_pluto(PLUTO_EXIT_FAIL);
		}
	} else {
		/* no daemon fork: we have to fill in lock file */
		(void) fill_lock(lockfd, getpid());
		if (isatty(fileno(stdout))) {
			fprintf(stdout, "Pluto initialized\n");
			fflush(stdout);
		}
	}

	/*
	 * Close everything but ctl_fd and (if needed) stderr.
	 * There is some danger that a library that we don't know
	 * about is using some fd that we don't know about.
	 * I guess we'll soon find out.
	 */
	{
		int i;

		for (i = getdtablesize() - 1; i >= 0; i--)	/* Bad hack */
			if ((!log_to_stderr || i != 2) &&
				i != ctl_fd)
				close(i);

		/* make sure that stdin, stdout, stderr are reserved */
		if (open("/dev/null", O_RDONLY) != 0)
			lsw_abort();
		if (dup2(0, 1) != 1)
			lsw_abort();
		if (!log_to_stderr && dup2(0, 2) != 2)

			lsw_abort();
	}

	init_constants();
	init_pluto_constants();

	pluto_init_log();

	if (!pluto_init_nss(oco->nssdb)) {
		loglog(RC_LOG_SERIOUS, "FATAL: NSS initialization failure");
		exit_pluto(PLUTO_EXIT_NSS_FAIL);
	}
	libreswan_log("NSS crypto library initialized");

	if (ocsp_enable) {
		if (!init_nss_ocsp(ocsp_default_uri, ocsp_trust_name,
						     ocsp_timeout,
						     strict_ocsp_policy)) {
			loglog(RC_LOG_SERIOUS, "Initializing NSS OCSP failed");
			exit_pluto(PLUTO_EXIT_NSS_FAIL);
		} else {
			libreswan_log("NSS OCSP Enabled");
		}
	}

#ifdef HAVE_LIBCAP_NG
	/*
	 * Drop capabilities - this generates a false positive valgrind warning
	 * See: http://marc.info/?l=linux-security-module&m=125895232029657
	 *
	 * We drop these after creating the pluto socket or else we can't
	 * create a socket if the parent dir is non-root (eg openstack)
	 */
	capng_clear(CAPNG_SELECT_BOTH);

	capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE | CAPNG_PERMITTED,
		CAP_NET_BIND_SERVICE, CAP_NET_ADMIN, CAP_NET_RAW,
		CAP_IPC_LOCK, CAP_AUDIT_WRITE,
		/* for google authenticator pam */
		CAP_SETGID, CAP_SETUID,
		CAP_DAC_READ_SEARCH,
		-1);
	/*
	 * We need to retain some capabilities for our children (updown):
	 * CAP_NET_ADMIN to change routes
	 * CAP_NET_RAW for iptables -t mangle
	 * CAP_DAC_READ_SEARCH for pam / google authenticator
	 */
	capng_updatev(CAPNG_ADD, CAPNG_BOUNDING_SET, CAP_NET_ADMIN, CAP_NET_RAW,
			CAP_DAC_READ_SEARCH, -1);
	capng_apply(CAPNG_SELECT_BOTH);
	libreswan_log("libcap-ng support [enabled]");
#else
	libreswan_log("libcap-ng support [disabled]");
#endif

#ifdef FIPS_CHECK
	libreswan_log("FIPS HMAC integrity support [enabled]");
	/*
	 * FIPS mode requires two conditions to be true:
	 *  - FIPS Kernel mode: fips=1 kernel boot parameter
	 *  - FIPS Product mode: See FIPSPRODUCTCHECK in Makefile.inc
	 *     (in RHEL/Fedora, dracut-fips installs $FIPSPRODUCTCHECK)
	 *
	 * When FIPS mode, abort on self-check hmac failure. Otherwise, complain
	 */
	{
		if (DBGP(IMPAIR_FORCE_FIPS)) {
			libreswan_log("Forcing FIPS checks to true to emulate FIPS mode");
			lsw_set_fips_mode(LSW_FIPS_ON);
		}

		enum lsw_fips_mode pluto_fips_mode = lsw_get_fips_mode();
		bool nss_fips_mode = PK11_IsFIPS();

		/*
		 * Now verify the consequences.  Always run the tests
		 * as combinations such as NSS in fips mode but as out
		 * of it could be bad.
		 */
		switch (pluto_fips_mode) {
		case LSW_FIPS_UNKNOWN:
			loglog(RC_LOG_SERIOUS, "ABORT: pluto FIPS mode could not be determined");
			exit_pluto(PLUTO_EXIT_FIPS_FAIL);
			break;
		case LSW_FIPS_ON:
			libreswan_log("FIPS mode enabled for pluto daemon");
			if (nss_fips_mode) {
				libreswan_log("NSS library is running in FIPS mode");
			} else {
				loglog(RC_LOG_SERIOUS, "ABORT: pluto in FIPS mode but NSS library is not");
				exit_pluto(PLUTO_EXIT_FIPS_FAIL);
			}
			break;
		case LSW_FIPS_OFF:
			libreswan_log("FIPS mode disabled for pluto daemon");
			if (nss_fips_mode) {
				loglog(RC_LOG_SERIOUS, "Warning: NSS library is running in FIPS mode");
			}
			break;
		case LSW_FIPS_UNSET:
		default:
			bad_case(pluto_fips_mode);
		}

		/* always run hmac check so we can print diagnostic */
		bool fips_files = FIPSCHECK_verify_files(fips_package_files);

		if (fips_files) {
			libreswan_log("FIPS HMAC integrity verification self-test passed");
		} else {
			loglog(RC_LOG_SERIOUS, "FIPS HMAC integrity verification self-test FAILED");
		}
		if (pluto_fips_mode == LSW_FIPS_ON && !fips_files) {
			exit_pluto(PLUTO_EXIT_FIPS_FAIL);
		}
	}
#else
	libreswan_log("FIPS HMAC integrity support [disabled]");
#endif

#ifdef USE_LINUX_AUDIT
	linux_audit_init();
#else
	libreswan_log("Linux audit support [disabled]");
#endif

	{
		const char *vc = ipsec_version_code();
		libreswan_log("Starting Pluto (Libreswan Version %s%s) pid:%u",
			vc, compile_time_interop_options, getpid());
	}

	libreswan_log("core dump dir: %s", coredir);
	if (oco->secretsfile && *oco->secretsfile)
		libreswan_log("secrets file: %s", oco->secretsfile);

	libreswan_log(leak_detective ?
		"leak-detective enabled" : "leak-detective disabled");

	/* Check for SAREF support */
#ifdef KLIPS_MAST
#include <ipsec_saref.h>
	{
		int e, sk, saref;
		saref = 1;
		errno = 0;

		sk = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
		e = setsockopt(sk, IPPROTO_IP, IP_IPSEC_REFINFO, &saref,
			sizeof(saref));
		if (e == -1 )
			libreswan_log("SAref support [disabled]: %s",
				strerror(errno));
		else
			libreswan_log("SAref support [enabled]");
		errno = 0;
		e = setsockopt(sk, IPPROTO_IP, IP_IPSEC_BINDREF, &saref,
			sizeof(saref));
		if (e == -1 )
			libreswan_log("SAbind support [disabled]: %s",
				strerror(errno));
		else
			libreswan_log("SAbind support [enabled]");

		close(sk);
	}
#endif

	libreswan_log("NSS crypto [enabled]");

#ifdef XAUTH_HAVE_PAM
	libreswan_log("XAUTH PAM support [enabled]");
#else
	libreswan_log("XAUTH PAM support [disabled]");
#endif

/* Log various impair-* functions if they were enabled */

	if (DBGP(IMPAIR_BUST_MI2))
		libreswan_log("Warning: IMPAIR_BUST_MI2 enabled");
	if (DBGP(IMPAIR_BUST_MR2))
		libreswan_log("Warning: IMPAIR_BUST_MR2 enabled");
	if (DBGP(IMPAIR_SA_CREATION))
		libreswan_log("Warning: IMPAIR_SA_CREATION enabled");
	if (DBGP(IMPAIR_JACOB_TWO_TWO))
		libreswan_log("Warning: IMPAIR_JACOB_TWO_TWO enabled");
	if (DBGP(IMPAIR_DIE_ONINFO))
		libreswan_log("Warning: IMPAIR_DIE_ONINFO enabled");
	if (DBGP(IMPAIR_MAJOR_VERSION_BUMP))
		libreswan_log("Warning: IMPAIR_MAJOR_VERSION_BUMP enabled");
	if (DBGP(IMPAIR_MINOR_VERSION_BUMP))
		libreswan_log("Warning: IMPAIR_MINOR_VERSION_BUMP enabled");
	if (DBGP(IMPAIR_RETRANSMITS))
		libreswan_log("Warning: IMPAIR_RETRANSMITS enabled");
	if (DBGP(IMPAIR_SEND_BOGUS_ISAKMP_FLAG))
		libreswan_log("Warning: IMPAIR_SEND_BOGUS_ISAKMP_FLAG enabled");
	if (DBGP(IMPAIR_SEND_BOGUS_PAYLOAD_FLAG))
		libreswan_log("Warning: IMPAIR_SEND_BOGUS_PAYLOAD_FLAG enabled");
	if (DBGP(IMPAIR_SEND_IKEv2_KE))
		libreswan_log("Warning: IMPAIR_SEND_IKEv2_KE enabled");
	if (DBGP(IMPAIR_SEND_KEY_SIZE_CHECK))
		libreswan_log("Warning: IMPAIR_SEND_KEY_SIZE_CHECK enabled");
	if (DBGP(IMPAIR_SEND_NO_DELETE))
		libreswan_log("Warning: IMPAIR_SEND_NO_DELETE enabled");
	if (DBGP(IMPAIR_FORCE_FIPS))
		libreswan_log("Warning: IMPAIR_FORCE_FIPS enabled");
	if (DBGP(IMPAIR_SEND_NO_IKEV2_AUTH))
		libreswan_log("Warning: IMPAIR_SEND_NO_IKEV2_AUTH enabled");
	if (DBGP(IMPAIR_SEND_ZERO_GX))
		libreswan_log("Warning: IMPAIR_SEND_ZERO_GX enabled");
	if (DBGP(IMPAIR_SEND_BOGUS_DCOOKIE))
		libreswan_log("Warning: IMPAIR_SEND_BOGUS_DCOOKIE enabled");

/* Initialize all of the various features */

	init_nat_traversal(keep_alive);

	init_virtual_ip(virtual_private);
	/* obsoleted by nss code init_rnd_pool(); */
	init_event_base();
	init_secret();
	init_states();
	init_connections();
	init_crypto();
	init_crypto_helpers(nhelpers);
	init_demux();
	init_kernel();
	init_id();
	init_vendorid();
#if defined(LIBCURL) || defined(LDAP_VER)
	init_fetch();
#endif
	load_crls();
#ifdef HAVE_LABELED_IPSEC
	init_avc();
#endif
	daily_log_event();
#ifdef USE_SYSTEMD_WATCHDOG
	pluto_sd_init();
#endif

	call_server();
	return -1;	/* Shouldn't ever reach this */
}
Beispiel #6
0
int
main(int argc, char **argv)
{
    bool fork_desired = TRUE;
    int lockfd;
    char* ocspuri = NULL;
    int nhelpers = -1;
    char *coredir;
    const struct osw_conf_options *oco;

#ifdef NAT_TRAVERSAL
    /** Overridden by nat_traversal= in ipsec.conf */
    bool nat_traversal = FALSE;
    bool nat_t_spf = TRUE;  /* support port floating */
    unsigned int keep_alive = 0;
    bool force_keepalive = FALSE;
#endif
    /** Overridden by virtual_private= in ipsec.conf */
    char *virtual_private = NULL;
#ifdef LEAK_DETECTIVE
    leak_detective=1;
#else
    leak_detective=0;
#endif

#ifdef HAVE_LIBCAP_NG
	/* Drop capabilities */
	capng_clear(CAPNG_SELECT_BOTH);
	capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE|CAPNG_PERMITTED,
			CAP_NET_BIND_SERVICE, CAP_NET_ADMIN, CAP_NET_RAW,
			CAP_IPC_LOCK, -1);
	/* our children must be able to CAP_NET_ADMIN to change routes.
	 */
	capng_updatev(CAPNG_ADD, CAPNG_BOUNDING_SET,
			CAP_NET_ADMIN, -1);
	capng_apply(CAPNG_SELECT_BOTH);
#endif


    global_argv = argv;
    global_argc = argc;
#ifdef DEBUG
    openswan_passert_fail = passert_fail;
#endif

    /* see if there is an environment variable */
    coredir = getenv("PLUTO_CORE_DIR");

    if(getenv("PLUTO_WAIT_FOR_GDB")) {
	sleep(120);
    }

    /* handle arguments */
    for (;;)
    {
#	define DBG_OFFSET 256
	static const struct option long_opts[] = {
	    /* name, has_arg, flag, val */
	    { "help", no_argument, NULL, 'h' },
	    { "version", no_argument, NULL, 'v' },
	    { "optionsfrom", required_argument, NULL, '+' },
	    { "nofork", no_argument, NULL, 'd' },
	    { "stderrlog", no_argument, NULL, 'e' },
	    { "noklips", no_argument, NULL, 'n' },
	    { "use-nostack",  no_argument, NULL, 'n' },
	    { "use-none",     no_argument, NULL, 'n' },
	    { "force_busy", no_argument, NULL, 'D' },
	    { "nocrsend", no_argument, NULL, 'c' },
	    { "strictcrlpolicy", no_argument, NULL, 'r' },
	    { "crlcheckinterval", required_argument, NULL, 'x'},
	    { "ocsprequestcert", required_argument, NULL, 'q'},
	    { "ocspuri", required_argument, NULL, 'o'},
	    { "uniqueids", no_argument, NULL, 'u' },
	    { "useklips",  no_argument, NULL, 'k' },
	    { "use-klips",  no_argument, NULL, 'k' },
	    { "use-auto",  no_argument, NULL, 'G' },
	    { "usenetkey", no_argument, NULL, 'K' },
	    { "use-netkey", no_argument, NULL, 'K' },
	    { "use-mast",   no_argument, NULL, 'M' },
	    { "use-mastklips",   no_argument, NULL, 'M' },
	    { "use-bsdkame",   no_argument, NULL, 'F' },
	    { "interface", required_argument, NULL, 'i' },
	    { "listen", required_argument, NULL, 'L' },
	    { "ikeport", required_argument, NULL, 'p' },
	    { "ctlbase", required_argument, NULL, 'b' },
	    { "secretsfile", required_argument, NULL, 's' },
	    { "foodgroupsdir", required_argument, NULL, 'f' },
	    { "perpeerlogbase", required_argument, NULL, 'P' },
	    { "perpeerlog", no_argument, NULL, 'l' },
	    { "noretransmits", no_argument, NULL, 'R' },
	    { "coredir", required_argument, NULL, 'C' },
	    { "ipsecdir", required_argument, NULL, 'f' },
	    { "ipsec_dir", required_argument, NULL, 'f' },
#ifdef USE_LWRES
	    { "lwdnsq", required_argument, NULL, 'a' },
#else /* !USE_LWRES */
	    { "adns", required_argument, NULL, 'a' },
#endif /* !USE_LWRES */
#ifdef NAT_TRAVERSAL
	    { "nat_traversal", no_argument, NULL, '1' },
	    { "keep_alive", required_argument, NULL, '2' },
	    { "force_keepalive", no_argument, NULL, '3' },
	    { "disable_port_floating", no_argument, NULL, '4' },
	    { "debug-nat_t", no_argument, NULL, '5' },
	    { "debug-nattraversal", no_argument, NULL, '5' },
	    { "debug-nat-t", no_argument, NULL, '5' },
#endif
	    { "virtual_private", required_argument, NULL, '6' },
	    { "nhelpers", required_argument, NULL, 'j' },
#ifdef DEBUG
	    { "debug-none", no_argument, NULL, 'N' },
	    { "debug-all", no_argument, NULL, 'A' },

	    { "debug-raw", no_argument, NULL, DBG_RAW + DBG_OFFSET },
	    { "debug-crypt", no_argument, NULL, DBG_CRYPT + DBG_OFFSET },
	    { "debug-crypto", no_argument, NULL, DBG_CRYPT + DBG_OFFSET },
	    { "debug-parsing", no_argument, NULL, DBG_PARSING + DBG_OFFSET },
	    { "debug-emitting", no_argument, NULL, DBG_EMITTING + DBG_OFFSET },
	    { "debug-control", no_argument, NULL, DBG_CONTROL + DBG_OFFSET },
	    { "debug-lifecycle", no_argument, NULL, DBG_LIFECYCLE + DBG_OFFSET },
	    { "debug-klips", no_argument, NULL, DBG_KLIPS + DBG_OFFSET },
	    { "debug-netkey", no_argument, NULL, DBG_NETKEY + DBG_OFFSET },
	    { "debug-dns", no_argument, NULL, DBG_DNS + DBG_OFFSET },
	    { "debug-oppo", no_argument, NULL, DBG_OPPO + DBG_OFFSET },
	    { "debug-oppoinfo", no_argument, NULL, DBG_OPPOINFO + DBG_OFFSET },
	    { "debug-controlmore", no_argument, NULL, DBG_CONTROLMORE + DBG_OFFSET },
	    { "debug-dpd", no_argument, NULL, DBG_DPD + DBG_OFFSET },
            { "debug-x509", no_argument, NULL, DBG_X509 + DBG_OFFSET },
	    { "debug-private", no_argument, NULL, DBG_PRIVATE + DBG_OFFSET },
	    { "debug-pfkey", no_argument, NULL, DBG_PFKEY + DBG_OFFSET },

	    { "impair-delay-adns-key-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_KEY_ANSWER + DBG_OFFSET },
	    { "impair-delay-adns-txt-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_TXT_ANSWER + DBG_OFFSET },
	    { "impair-bust-mi2", no_argument, NULL, IMPAIR_BUST_MI2 + DBG_OFFSET },
	    { "impair-bust-mr2", no_argument, NULL, IMPAIR_BUST_MR2 + DBG_OFFSET },
	    { "impair-sa-creation", no_argument, NULL, IMPAIR_SA_CREATION + DBG_OFFSET },
	    { "impair-die-oninfo", no_argument, NULL, IMPAIR_DIE_ONINFO + DBG_OFFSET },
	    { "impair-jacob-two-two", no_argument, NULL, IMPAIR_JACOB_TWO_TWO + DBG_OFFSET },
#endif
	    { 0,0,0,0 }
	    };
	/* Note: we don't like the way short options get parsed
	 * by getopt_long, so we simply pass an empty string as
	 * the list.  It could be "hvdenp:l:s:" "NARXPECK".
	 */
	int c = getopt_long(argc, argv, "", long_opts, NULL);

	/** Note: "breaking" from case terminates loop */
	switch (c)
	{
	case EOF:	/* end of flags */
	    break;

	case 0: /* long option already handled */
	    continue;

	case ':':	/* diagnostic already printed by getopt_long */
	case '?':	/* diagnostic already printed by getopt_long */
	    usage("");
	    break;   /* not actually reached */

	case 'h':	/* --help */
	    usage(NULL);
	    break;	/* not actually reached */

	case 'C':
	    coredir = clone_str(optarg, "coredir");
	    break;

	case 'v':	/* --version */
	    {
		const char **sp = ipsec_copyright_notice();

		printf("%s%s\n", ipsec_version_string(),
				 compile_time_interop_options);
		for (; *sp != NULL; sp++)
		    puts(*sp);
	    }
	    exit(0);	/* not exit_pluto because we are not initialized yet */
	    break;	/* not actually reached */

	case '+':	/* --optionsfrom <filename> */
	    optionsfrom(optarg, &argc, &argv, optind, stderr);
	    /* does not return on error */
	    continue;

	case 'j':	/* --nhelpers */
            if (optarg == NULL || !isdigit(optarg[0]))
                usage("missing number of pluto helpers");

            {
                char *endptr;
                long count = strtol(optarg, &endptr, 0);

                if (*endptr != '\0' || endptr == optarg
		    || count < -1)
                    usage("<nhelpers> must be a positive number, 0 or -1");
                nhelpers = count;
            }
	    continue;

	case 'd':	/* --nofork*/
	    fork_desired = FALSE;
	    continue;

	case 'e':	/* --stderrlog */
	    log_to_stderr_desired = TRUE;
	    continue;

	case 'G':       /* --use-auto */
	    kern_interface = AUTO_PICK;
	    continue;

	case 'k':       /* --use-klips */
	    kern_interface = USE_KLIPS;
	    continue;

	case 'L':	/* --listen ip_addr */
	    {
	    ip_address lip;
	     err_t e = ttoaddr(optarg,0,0,&lip);
	    if(e) {
		openswan_log("invalid listen argument ignored: %s\n",e);
	    } else {
		pluto_listen = clone_str(optarg, "pluto_listen");
		openswan_log("bind() will be filtered for %s\n",pluto_listen);
	    }
            }
	   continue;

	case 'M':       /* --use-mast */
	    kern_interface = USE_MASTKLIPS;
	    continue;

	case 'F':       /* --use-bsdkame */
	    kern_interface = USE_BSDKAME;
	    continue;

	case 'K':       /* --use-netkey */
	    kern_interface = USE_NETKEY;
	    continue;

	case 'n':	/* --use-nostack */
	    kern_interface = NO_KERNEL;
	    continue;

	case 'D':	/* --force_busy */
	    force_busy = TRUE;
	    continue
	    ;

	case 'c':	/* --nocrsend */
	    no_cr_send = TRUE;
	    continue
	    ;

	case 'r':	/* --strictcrlpolicy */
	    strict_crl_policy = TRUE;
	    continue
	    ;

	case 'R':
	    no_retransmits = TRUE;
	    continue;

	case 'x':	/* --crlcheckinterval <time>*/
            if (optarg == NULL || !isdigit(optarg[0]))
                usage("missing interval time");

            {
                char *endptr;
                long interval = strtol(optarg, &endptr, 0);

                if (*endptr != '\0' || endptr == optarg
                || interval <= 0)
                    usage("<interval-time> must be a positive number");
                crl_check_interval = interval;
            }
	    continue
	    ;

	case 'o':	/* --ocspuri */
	    ocspuri = optarg;
	    continue;

	case 'u':	/* --uniqueids */
	    uniqueIDs = TRUE;
	    continue;

	case 'i':	/* --interface <ifname|ifaddr> */
	    if (!use_interface(optarg))
		usage("too many --interface specifications");
	    continue;

	/* 
	 * This option does not really work, as this is the "left"
	 * site only, you also need --to --ikeport again later on
	 * It will result in: yourport -> 500, still not bypassing filters
	 */
	case 'p':	/* --ikeport <portnumber> */
	    if (optarg == NULL || !isdigit(optarg[0]))
		usage("missing port number");
	    {
		char *endptr;
		long port = strtol(optarg, &endptr, 0);

		if (*endptr != '\0' || endptr == optarg
		|| port <= 0 || port > 0x10000)
		    usage("<port-number> must be a number between 1 and 65535");
		pluto_port = port;
	    }
	    continue;

	case 'b':	/* --ctlbase <path> */
	    ctlbase = optarg;
	    if (snprintf(ctl_addr.sun_path, sizeof(ctl_addr.sun_path)
			 , "%s%s", ctlbase, CTL_SUFFIX) == -1)
		usage("<path>" CTL_SUFFIX " too long for sun_path");
	    if (snprintf(info_addr.sun_path, sizeof(info_addr.sun_path)
			 , "%s%s", ctlbase, INFO_SUFFIX) == -1)
		usage("<path>" INFO_SUFFIX " too long for sun_path");
	    if (snprintf(pluto_lock, sizeof(pluto_lock)
			 , "%s%s", ctlbase, LOCK_SUFFIX) == -1)
		usage("<path>" LOCK_SUFFIX " must fit");
	    continue;

	case 's':	/* --secretsfile <secrets-file> */
	    pluto_shared_secrets_file = optarg;
	    continue;

	case 'f':	/* --ipsecdir <ipsec-dir> */
	    (void)osw_init_ipsecdir(optarg);
	    continue;

	case 'a':	/* --adns <pathname> */
	    pluto_adns_option = optarg;
	    continue;

#ifdef DEBUG
	case 'N':	/* --debug-none */
	    base_debugging = DBG_NONE;
	    continue;

	case 'A':	/* --debug-all */
	    base_debugging = DBG_ALL;
	    continue;
#endif

	case 'P':       /* --perpeerlogbase */
	    base_perpeer_logdir = optarg;
	    continue;

	case 'l':
	    log_to_perpeer = TRUE;
	    continue;

#ifdef NAT_TRAVERSAL
	case '1':	/* --nat_traversal */
	    nat_traversal = TRUE;
	    continue;
	case '2':	/* --keep_alive */
	    keep_alive = atoi(optarg);
	    continue;
	case '3':	/* --force_keepalive */
	    force_keepalive = TRUE;
	    continue;
	case '4':	/* --disable_port_floating */
	    nat_t_spf = FALSE;
	    continue;
#ifdef DEBUG
	case '5':	/* --debug-nat_t */
	    base_debugging |= DBG_NATT;
	    continue;
#endif
#endif
	case '6':	/* --virtual_private */
	    virtual_private = optarg;
	    continue;

	default:
#ifdef DEBUG
	    if (c >= DBG_OFFSET)
	    {
		base_debugging |= c - DBG_OFFSET;
		continue;
	    }
#	undef DBG_OFFSET
#endif
	    bad_case(c);
	}
	break;
    }
    if (optind != argc)
	usage("unexpected argument");
    reset_debugging();

#ifdef HAVE_NO_FORK
	fork_desired = FALSE;
	nhelpers = 0;
#endif

    /* if a core dir was set, chdir there */
    if(coredir) 
	if(chdir(coredir) == -1) {
	   int e = errno;
	   openswan_log("pluto: chdir() do dumpdir failed (%d %s)\n",
                    e, strerror(e));
    }

    oco = osw_init_options();
    lockfd = create_lock();

    /* select between logging methods */

    if (log_to_stderr_desired)
	log_to_syslog = FALSE;
    else
	log_to_stderr = FALSE;

#ifdef DEBUG
#if 0
    if(kernel_ops->set_debug) {
	(*kernel_ops->set_debug)(cur_debugging, DBG_log, DBG_log);
    }
#endif
#endif

    /** create control socket.
     * We must create it before the parent process returns so that
     * there will be no race condition in using it.  The easiest
     * place to do this is before the daemon fork.
     */
    {
	err_t ugh = init_ctl_socket();

	if (ugh != NULL)
	{
	    fprintf(stderr, "pluto: %s", ugh);
	    exit_pluto(1);
	}
    }

#ifdef IPSECPOLICY
    /* create info socket. */
    {
	err_t ugh = init_info_socket();

	if (ugh != NULL)
	{
	    fprintf(stderr, "pluto: %s", ugh);
	    exit_pluto(1);
	}
    }
#endif

    /* If not suppressed, do daemon fork */

    if (fork_desired)
    {
	{
	    pid_t pid = fork();

	    if (pid < 0)
	    {
		int e = errno;

		fprintf(stderr, "pluto: fork failed (%d %s)\n",
		    errno, strerror(e));
		exit_pluto(1);
	    }

	    if (pid != 0)
	    {
		/* parent: die, after filling PID into lock file.
		 * must not use exit_pluto: lock would be removed!
		 */
		exit(fill_lock(lockfd, pid)? 0 : 1);
	    }
	}

	if (setsid() < 0)
	{
	    int e = errno;

	    fprintf(stderr, "setsid() failed in main(). Errno %d: %s\n",
		errno, strerror(e));
	    exit_pluto(1);
	}
    }
    else
    {
	/* no daemon fork: we have to fill in lock file */
	(void) fill_lock(lockfd, getpid());
	fprintf(stdout, "Pluto initialized\n");
	fflush(stdout);
    }

    /** Close everything but ctl_fd and (if needed) stderr.
     * There is some danger that a library that we don't know
     * about is using some fd that we don't know about.
     * I guess we'll soon find out.
     */
    {
	int i;

	for (i = getdtablesize() - 1; i >= 0; i--)  /* Bad hack */
	    if ((!log_to_stderr || i != 2)
#ifdef IPSECPOLICY
	    && i != info_fd
#endif
	    && i != ctl_fd)
		close(i);

	/* make sure that stdin, stdout, stderr are reserved */
	if (open("/dev/null", O_RDONLY) != 0)
	    osw_abort();
	if (dup2(0, 1) != 1)
	    osw_abort();
	if (!log_to_stderr && dup2(0, 2) != 2)
	    osw_abort();
    }

    init_constants();
    pluto_init_log();

#ifdef HAVE_LIBNSS
	char buf[100];
	snprintf(buf, sizeof(buf), "%s",oco->confddir);
	loglog(RC_LOG_SERIOUS,"nss directory plutomain: %s",buf);
	SECStatus nss_init_status= NSS_InitReadWrite(buf);
	if (nss_init_status != SECSuccess) {
	    loglog(RC_LOG_SERIOUS, "NSS initialization failed (err %d)\n", PR_GetError());
        exit_pluto(10);
	} else {
	    loglog(RC_LOG_SERIOUS, "NSS Initialized");
	    PK11_SetPasswordFunc(getNSSPassword);

#ifdef FIPS_CHECK
	const char *package_files[]= { IPSECLIBDIR"/setup",
				        IPSECLIBDIR"/addconn",
				        IPSECLIBDIR"/auto",
				        IPSECLIBDIR"/barf",
				        IPSECLIBDIR"/_copyright",
				        IPSECLIBDIR"/eroute",
  				        IPSECLIBDIR"/ikeping",
				        IPSECLIBDIR"/_include",
					IPSECLIBDIR"/_keycensor",
					IPSECLIBDIR"/klipsdebug",
					IPSECLIBDIR"/look",
					IPSECLIBDIR"/newhostkey",
					IPSECLIBDIR"/pf_key",
					IPSECLIBDIR"/_pluto_adns",
					IPSECLIBDIR"/_plutoload",
					IPSECLIBDIR"/_plutorun",
					IPSECLIBDIR"/ranbits",
					IPSECLIBDIR"/_realsetup",
					IPSECLIBDIR"/rsasigkey",
					IPSECLIBDIR"/pluto",
					IPSECLIBDIR"/_secretcensor",
					IPSECLIBDIR"/secrets",
					IPSECLIBDIR"/showdefaults",
					IPSECLIBDIR"/showhostkey",
					IPSECLIBDIR"/showpolicy",
					IPSECLIBDIR"/spi",
					IPSECLIBDIR"/spigrp",
					IPSECLIBDIR"/_startklips",
					IPSECLIBDIR"/_startnetkey",
					IPSECLIBDIR"/tncfg",
					IPSECLIBDIR"/_updown",
					IPSECLIBDIR"/_updown.klips",
					IPSECLIBDIR"/_updown.mast",
					IPSECLIBDIR"/_updown.netkey", 
					IPSECLIBDIR"/verify",
					IPSECLIBDIR"/whack",
					IPSECSBINDIR"/ipsec",
					NULL
					};

       if (Pluto_IsFIPS() && !FIPSCHECK_verify_files(package_files)) {
             loglog(RC_LOG_SERIOUS, "FIPS integrity verification test failed");
             exit_pluto(10);
        }
#endif

      }
#endif

    /* Note: some scripts may look for this exact message -- don't change
     * ipsec barf was one, but it no longer does.
     */
    {
	const char *vc = ipsec_version_code();
#ifdef PLUTO_SENDS_VENDORID
	const char *v = init_pluto_vendorid();
	openswan_log("Starting Pluto (Openswan Version %s%s; Vendor ID %s) pid:%u"
		     , vc, compile_time_interop_options, v, getpid());
#else
	openswan_log("Starting Pluto (Openswan Version %s%s) pid:%u"
		     , vc, compile_time_interop_options, getpid());
#endif
#ifdef HAVE_LIBNSS
	if(Pluto_IsFIPS()) {
		openswan_log("Pluto is running in FIPS mode");
	}
#endif

	if((vc[0]=='c' && vc[1]=='v' && vc[2]=='s') ||
	   (vc[2]=='g' && vc[3]=='i' && vc[4]=='t')) {
	    /*
	     * when people build RPMs from CVS or GIT, make sure they
	     * get blamed appropriately, and that we get some way to
	     * identify who did it, and when they did it. Use string concat,
	     * so that strings the binary can or classic SCCS "what", will find
	     * stuff too.
	     */
	    openswan_log("@(#) built on "__DATE__":" __TIME__ " by " BUILDER);
	}
#if defined(USE_1DES)
	openswan_log("WARNING: 1DES is enabled");
#endif
    }

    if(coredir) {
	openswan_log("core dump dir: %s", coredir);
    }

#ifdef LEAK_DETECTIVE
	openswan_log("LEAK_DETECTIVE support [enabled]");
#else
	openswan_log("LEAK_DETECTIVE support [disabled]");
#endif

#ifdef HAVE_OCF
       {
        struct stat buf;
	errno=0;

	if( stat("/dev/crypto",&buf) != -1) 
		openswan_log("OCF support for IKE via /dev/crypto [enabled]");
	else 
		openswan_log("OCF support for IKE via /dev/crypto [failed:%s]", strerror(errno));
       }
#else
	openswan_log("OCF support for IKE [disabled]");
#endif

   /* Check for SAREF support */
#ifdef KLIPS_MAST
#include <ipsec_saref.h>
    {
	int e, sk, saref;
	saref = 1;
	errno=0;

	sk = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
	e = setsockopt(sk, IPPROTO_IP, IP_IPSEC_REFINFO, &saref, sizeof(saref));
	if (e == -1 ) {
		openswan_log("SAref support [disabled]: %s" , strerror(errno));
	}
	else {
		openswan_log("SAref support [enabled]");
	}
	errno=0;
	e = setsockopt(sk, IPPROTO_IP, IP_IPSEC_BINDREF, &saref, sizeof(saref));
	if (e == -1 ) {
		openswan_log("SAbind support [disabled]: %s" , strerror(errno));
	}
	else {
		openswan_log("SAbind support [enabled]");
	}


	close(sk);
    }
#endif

#ifdef HAVE_LIBNSS
	openswan_log("NSS support [enabled]");
#else
	openswan_log("NSS support [disabled]");
#endif

#ifdef HAVE_STATSD
	openswan_log("HAVE_STATSD notification via /bin/openswan-statsd enabled");
#else
	openswan_log("HAVE_STATSD notification support not compiled in");
#endif


/** Log various impair-* functions if they were enabled */

    if(DBGP(IMPAIR_BUST_MI2))
	openswan_log("Warning: IMPAIR_BUST_MI2 enabled");
    if(DBGP(IMPAIR_BUST_MR2))
	openswan_log("Warning: IMPAIR_BUST_MR2 enabled");
    if(DBGP(IMPAIR_SA_CREATION))
	openswan_log("Warning: IMPAIR_SA_CREATION enabled");
    if(DBGP(IMPAIR_JACOB_TWO_TWO))
	openswan_log("Warning: IMPAIR_JACOB_TWO_TWO enabled");
    if(DBGP(IMPAIR_DIE_ONINFO))
	openswan_log("Warning: IMPAIR_DIE_ONINFO enabled");
    if(DBGP(IMPAIR_DELAY_ADNS_KEY_ANSWER))
	openswan_log("Warning: IMPAIR_DELAY_ADNS_KEY_ANSWER enabled");
    if(DBGP(IMPAIR_DELAY_ADNS_TXT_ANSWER))
	openswan_log("Warning: IMPAIR_DELAY_ADNS_TXT_ANSWER enabled");

/** Initialize all of the various features */

#ifdef NAT_TRAVERSAL
    init_nat_traversal(nat_traversal, keep_alive, force_keepalive, nat_t_spf);
#endif

    init_virtual_ip(virtual_private);
    init_rnd_pool();
    init_timer();
    init_secret();
    init_states();
    init_connections();
    init_crypto();
    init_crypto_helpers(nhelpers);
    load_oswcrypto();
    init_demux();
    init_kernel();
    init_adns();
    init_id();

#ifdef TPM
    init_tpm();
#endif

#ifdef HAVE_THREADS
    init_fetch();
#endif

    ocsp_set_default_uri(ocspuri);

    /* loading X.509 CA certificates */
    load_authcerts("CA cert", oco->cacerts_dir, AUTH_CA);
    /* loading X.509 AA certificates */
    load_authcerts("AA cert", oco->aacerts_dir, AUTH_AA);
    /* loading X.509 OCSP certificates */
    load_authcerts("OCSP cert", oco->ocspcerts_dir, AUTH_OCSP);

    /* loading X.509 CRLs */
    load_crls();
    /* loading attribute certificates (experimental) */
    load_acerts();

#ifdef HAVE_LIBNSS
    /*Loading CA certs from NSS DB*/
    load_authcerts_from_nss("CA cert",  AUTH_CA);
#endif

    daily_log_event();
    call_server();
    return -1;	/* Shouldn't ever reach this */
}
Beispiel #7
0
int
main(int argc, char **argv)
{
    int lockfd;
    int nhelpers = -1;
    char *coredir;
    const struct lsw_conf_options *oco;

    /* 
     * We read the intentions for how to log from command line options
     * and the config file. Then we prepare to be able to log, but until
     * then log to stderr (better then nothing). Once we are ready to
     * actually do loggin according to the methods desired, we set the
     * variables for those methods
     */
    bool   log_to_stderr_desired = FALSE;
    bool   log_to_file_desired = FALSE;

    coredir = NULL;

    /* set up initial defaults that need a cast */
    pluto_shared_secrets_file =
        DISCARD_CONST(char *, SHARED_SECRETS_FILE);

#ifdef NAT_TRAVERSAL
    /** Overridden by nat_traversal= in ipsec.conf */
    bool nat_traversal = FALSE;
    bool nat_t_spf = TRUE;  /* support port floating */
    unsigned int keep_alive = 0;
    bool force_keepalive = FALSE;
#endif
    /** Overridden by virtual_private= in ipsec.conf */
    char *virtual_private = NULL;
#ifdef LEAK_DETECTIVE
    leak_detective=1;
#else
    leak_detective=0;
#endif

#ifdef HAVE_LIBCAP_NG
	/* Drop capabilities */
	capng_clear(CAPNG_SELECT_BOTH);
	capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE|CAPNG_PERMITTED,
			CAP_NET_BIND_SERVICE, CAP_NET_ADMIN, CAP_NET_RAW,
			CAP_IPC_LOCK, CAP_AUDIT_WRITE,
			-1);
	/* our children must be able to CAP_NET_ADMIN to change routes.
	 */
	capng_updatev(CAPNG_ADD, CAPNG_BOUNDING_SET,
			CAP_NET_ADMIN, -1);
	capng_apply(CAPNG_SELECT_BOTH);
#endif


#ifdef DEBUG
    libreswan_passert_fail = passert_fail;
#endif

    if(getenv("PLUTO_WAIT_FOR_GDB")) {
	sleep(120);
    }

    /* handle arguments */
    for (;;)
    {
#	define DBG_OFFSET 256
	static const struct option long_opts[] = {
	    /* name, has_arg, flag, val */
	    { "help", no_argument, NULL, 'h' },
	    { "version", no_argument, NULL, 'v' },
	    { "config", required_argument, NULL, 'z' },
	    { "nofork", no_argument, NULL, 'd' },
	    { "stderrlog", no_argument, NULL, 'e' },
	    { "logfile", required_argument, NULL, 'g' },
	    { "plutostderrlogtime", no_argument, NULL, 't' },
	    { "noklips", no_argument, NULL, 'n' },
	    { "use-nostack",  no_argument, NULL, 'n' },
	    { "use-none",     no_argument, NULL, 'n' },
	    { "force_busy", no_argument, NULL, 'D' },
	    { "strictcrlpolicy", no_argument, NULL, 'r' },
	    { "crlcheckinterval", required_argument, NULL, 'x'},
	    { "uniqueids", no_argument, NULL, 'u' },
	    { "useklips",  no_argument, NULL, 'k' },
	    { "use-klips",  no_argument, NULL, 'k' },
	    { "use-auto",  no_argument, NULL, 'G' },
	    { "usenetkey", no_argument, NULL, 'K' },
	    { "use-netkey", no_argument, NULL, 'K' },
	    { "use-mast",   no_argument, NULL, 'M' },
	    { "use-mastklips",   no_argument, NULL, 'M' },
	    { "use-bsdkame",   no_argument, NULL, 'F' },
	    { "interface", required_argument, NULL, 'i' },
	    { "listen", required_argument, NULL, 'L' },
	    { "ikeport", required_argument, NULL, 'p' },
	    { "natikeport", required_argument, NULL, 'q' },
	    { "ctlbase", required_argument, NULL, 'b' },
	    { "secretsfile", required_argument, NULL, 's' },
	    { "perpeerlogbase", required_argument, NULL, 'P' },
	    { "perpeerlog", no_argument, NULL, 'l' },
	    { "noretransmits", no_argument, NULL, 'R' },
	    { "coredir", required_argument, NULL, 'C' },
	    { "ipsecdir", required_argument, NULL, 'f' },
	    { "ipsec_dir", required_argument, NULL, 'f' },
	    { "foodgroupsdir", required_argument, NULL, 'f' },
	    { "adns", required_argument, NULL, 'a' },
#ifdef NAT_TRAVERSAL
	    { "nat_traversal", no_argument, NULL, '1' },
	    { "keep_alive", required_argument, NULL, '2' },
	    { "force_keepalive", no_argument, NULL, '3' },
	    { "disable_port_floating", no_argument, NULL, '4' },
	    { "debug-nat_t", no_argument, NULL, '5' },
	    { "debug-nattraversal", no_argument, NULL, '5' },
	    { "debug-nat-t", no_argument, NULL, '5' },
#endif
	    { "virtual_private", required_argument, NULL, '6' },
	    { "nhelpers", required_argument, NULL, 'j' },
#ifdef HAVE_LABELED_IPSEC
	    { "secctx_attr_value", required_argument, NULL, 'w' },
#endif
#ifdef DEBUG
	    { "debug-none", no_argument, NULL, 'N' },
	    { "debug-all", no_argument, NULL, 'A' },

	    { "debug-raw", no_argument, NULL, DBG_RAW + DBG_OFFSET },
	    { "debug-crypt", no_argument, NULL, DBG_CRYPT + DBG_OFFSET },
	    { "debug-crypto", no_argument, NULL, DBG_CRYPT + DBG_OFFSET },
	    { "debug-parsing", no_argument, NULL, DBG_PARSING + DBG_OFFSET },
	    { "debug-emitting", no_argument, NULL, DBG_EMITTING + DBG_OFFSET },
	    { "debug-control", no_argument, NULL, DBG_CONTROL + DBG_OFFSET },
	    { "debug-lifecycle", no_argument, NULL, DBG_LIFECYCLE + DBG_OFFSET },
	    { "debug-klips", no_argument, NULL, DBG_KLIPS + DBG_OFFSET },
	    { "debug-netkey", no_argument, NULL, DBG_NETKEY + DBG_OFFSET },
	    { "debug-dns", no_argument, NULL, DBG_DNS + DBG_OFFSET },
	    { "debug-oppo", no_argument, NULL, DBG_OPPO + DBG_OFFSET },
	    { "debug-oppoinfo", no_argument, NULL, DBG_OPPOINFO + DBG_OFFSET },
	    { "debug-controlmore", no_argument, NULL, DBG_CONTROLMORE + DBG_OFFSET },
	    { "debug-dpd", no_argument, NULL, DBG_DPD + DBG_OFFSET },
            { "debug-x509", no_argument, NULL, DBG_X509 + DBG_OFFSET },
	    { "debug-private", no_argument, NULL, DBG_PRIVATE + DBG_OFFSET },
	    { "debug-pfkey", no_argument, NULL, DBG_PFKEY + DBG_OFFSET },

	    { "impair-delay-adns-key-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_KEY_ANSWER + DBG_OFFSET },
	    { "impair-delay-adns-txt-answer", no_argument, NULL, IMPAIR_DELAY_ADNS_TXT_ANSWER + DBG_OFFSET },
	    { "impair-bust-mi2", no_argument, NULL, IMPAIR_BUST_MI2 + DBG_OFFSET },
	    { "impair-bust-mr2", no_argument, NULL, IMPAIR_BUST_MR2 + DBG_OFFSET },
	    { "impair-sa-creation", no_argument, NULL, IMPAIR_SA_CREATION + DBG_OFFSET },
	    { "impair-die-oninfo", no_argument, NULL, IMPAIR_DIE_ONINFO + DBG_OFFSET },
	    { "impair-jacob-two-two", no_argument, NULL, IMPAIR_JACOB_TWO_TWO + DBG_OFFSET },
	    { "impair-major-version-bump", no_argument, NULL, IMPAIR_MAJOR_VERSION_BUMP + DBG_OFFSET },
	    { "impair-minor-version-bump", no_argument, NULL, IMPAIR_MINOR_VERSION_BUMP + DBG_OFFSET },
	    { "impair-retransmits", no_argument, NULL, IMPAIR_RETRANSMITS + DBG_OFFSET },
	    { "impair-send-bogus-isakmp-flag", no_argument, NULL, IMPAIR_SEND_BOGUS_ISAKMP_FLAG + DBG_OFFSET },
#endif
	    { 0,0,0,0 }
	    };
	/* Note: we don't like the way short options get parsed
	 * by getopt_long, so we simply pass an empty string as
	 * the list.  It could be "hvdenp:l:s:" "NARXPECK".
	 */
	int c = getopt_long(argc, argv, "", long_opts, NULL);

	/** Note: "breaking" from case terminates loop */
	switch (c)
	{
	case EOF:	/* end of flags */
	    break;

	case 0: /* long option already handled */
	    continue;

	case ':':	/* diagnostic already printed by getopt_long */
	case '?':	/* diagnostic already printed by getopt_long */
	    usage("");
	    break;   /* not actually reached */

	case 'h':	/* --help */
	    usage(NULL);
	    break;	/* not actually reached */

	case 'C':
	    coredir = clone_str(optarg, "coredir");
	    continue;

	case 'v':	/* --version */
	    {
		printf("%s%s\n", ipsec_version_string(),
				 compile_time_interop_options);
	    }
	    exit(0);	/* not exit_pluto because we are not initialized yet */
	    break;	/* not actually reached */

	case 'j':	/* --nhelpers */
            if (optarg == NULL || !isdigit(optarg[0]))
                usage("missing number of pluto helpers");

            {
                char *endptr;
                long count = strtol(optarg, &endptr, 0);

                if (*endptr != '\0' || endptr == optarg
		    || count < -1)
                    usage("<nhelpers> must be a positive number, 0 or -1");
                nhelpers = count;
            }
	    continue;

#ifdef HAVE_LABELED_IPSEC
	case 'w':	/* --secctx_attr_value*/
	    if (optarg == NULL || !isdigit(optarg[0]))
		usage("missing (positive integer) value of secctx_attr_value (needed only if using labeled ipsec)");

	   {
                char *endptr;
                long value = strtol(optarg, &endptr, 0);

                if (*endptr != '\0' || endptr == optarg
                    || (value != SECCTX && value !=10) )
                    usage("<secctx_attr_value> must be a positive number (32001 by default, 10 for backward compatibility, or any other future number assigned by IANA)");
                 secctx_attr_value = (u_int16_t)value;
	   }
	   continue;
#endif

	case 'd':	/* --nofork*/
	    fork_desired = FALSE;
	    continue;

	case 'e':	/* --stderrlog */
	    log_to_stderr_desired = TRUE;
	    continue;

	case 'g':	/* --logfile */
	    pluto_log_file = optarg;
	    log_to_file_desired = TRUE;
	    continue;

	case 't':	/* --plutostderrlogtime */
	    log_with_timestamp = TRUE;
	    continue;

	case 'G':       /* --use-auto */
	    libreswan_log("The option --use-auto is obsoleted, falling back to  --use-netkey\n");
	    kern_interface = USE_NETKEY;
	    continue;

	case 'k':       /* --use-klips */
	    kern_interface = USE_KLIPS;
	    continue;

	case 'L':	/* --listen ip_addr */
	    {
	    ip_address lip;
	     err_t e = ttoaddr(optarg,0,0,&lip);
	    if(e) {
		libreswan_log("invalid listen argument ignored: %s\n",e);
	    } else {
		pluto_listen = clone_str(optarg, "pluto_listen");
		libreswan_log("bind() will be filtered for %s\n",pluto_listen);
	    }
            }
	   continue;

	case 'M':       /* --use-mast */
	    kern_interface = USE_MASTKLIPS;
	    continue;

	case 'F':       /* --use-bsdkame */
	    kern_interface = USE_BSDKAME;
	    continue;

	case 'K':       /* --use-netkey */
	    kern_interface = USE_NETKEY;
	    continue;

	case 'n':	/* --use-nostack */
	    kern_interface = NO_KERNEL;
	    continue;

	case 'D':	/* --force_busy */
	    force_busy = TRUE;
	    continue
	    ;

	case 'r':	/* --strictcrlpolicy */
	    strict_crl_policy = TRUE;
	    continue
	    ;

	case 'R':
	    no_retransmits = TRUE;
	    continue;

	case 'x':	/* --crlcheckinterval <time>*/
            if (optarg == NULL || !isdigit(optarg[0]))
                usage("missing interval time");

            {
                char *endptr;
                long interval = strtol(optarg, &endptr, 0);

                if (*endptr != '\0' || endptr == optarg
                || interval <= 0)
                    usage("<interval-time> must be a positive number");
                crl_check_interval = interval;
            }
	    continue
	    ;

	case 'u':	/* --uniqueids */
	    uniqueIDs = TRUE;
	    continue;

	case 'i':	/* --interface <ifname|ifaddr> */
	    if (!use_interface(optarg))
		usage("too many --interface specifications");
	    continue;

	/*
	 * This option does not really work, as this is the "left"
	 * site only, you also need --to --ikeport again later on
	 * It will result in: yourport -> 500, still not bypassing filters
	 */
	case 'p':	/* --ikeport <portnumber> */
	    if (optarg == NULL || !isdigit(optarg[0]))
		usage("missing port number");
	    {
		char *endptr;
		long port = strtol(optarg, &endptr, 0);

		if (*endptr != '\0' || endptr == optarg
		|| port <= 0 || port > 0x10000)
		    usage("<port-number> must be a number between 1 and 65535");
		pluto_port = port;
	    }
	    continue;

#ifdef NAT_TRAVERSAL
	case 'q':	/* --natikeport <portnumber> */
	    if (optarg == NULL || !isdigit(optarg[0]))
		usage("missing port number");
	    {
		char *endptr;
		long port = strtol(optarg, &endptr, 0);

		if (*endptr != '\0' || endptr == optarg
		|| port <= 0 || port > 0x10000)
		    usage("<port-number> must be a number between 1 and 65535");
		pluto_natt_float_port = port;
	    }
	    continue;
#endif

	case 'b':	/* --ctlbase <path> */
	    ctlbase = optarg;
	    if (snprintf(ctl_addr.sun_path, sizeof(ctl_addr.sun_path)
			 , "%s%s", ctlbase, CTL_SUFFIX) == -1)
		usage("<path>" CTL_SUFFIX " too long for sun_path");
	    if (snprintf(info_addr.sun_path, sizeof(info_addr.sun_path)
			 , "%s%s", ctlbase, INFO_SUFFIX) == -1)
		usage("<path>" INFO_SUFFIX " too long for sun_path");
	    if (snprintf(pluto_lock, sizeof(pluto_lock)
			 , "%s%s", ctlbase, LOCK_SUFFIX) == -1)
		usage("<path>" LOCK_SUFFIX " must fit");
	    continue;

	case 's':	/* --secretsfile <secrets-file> */
	    pluto_shared_secrets_file = optarg;
	    continue;

	case 'f':	/* --ipsecdir <ipsec-dir> */
	    (void)lsw_init_ipsecdir(optarg);
	    continue;

	case 'a':	/* --adns <pathname> */
	    pluto_adns_option = optarg;
	    continue;

#ifdef DEBUG
	case 'N':	/* --debug-none */
	    base_debugging = DBG_NONE;
	    continue;

	case 'A':	/* --debug-all */
	    base_debugging = DBG_ALL;
	    continue;
#endif

	case 'P':       /* --perpeerlogbase */
	    base_perpeer_logdir = optarg;
	    continue;

	case 'l':
	    log_to_perpeer = TRUE;
	    continue;

#ifdef NAT_TRAVERSAL
	case '1':	/* --nat_traversal */
	    nat_traversal = TRUE;
	    continue;
	case '2':	/* --keep_alive */
	    keep_alive = atoi(optarg);
	    continue;
	case '3':	/* --force_keepalive */
	    force_keepalive = TRUE;
	    continue;
	case '4':	/* --disable_port_floating */
	    nat_t_spf = FALSE;
	    continue;
#ifdef DEBUG
	case '5':	/* --debug-nat_t */
	    base_debugging |= DBG_NATT;
	    continue;
#endif
#endif
	case '6':	/* --virtual_private */
	    virtual_private = optarg;
	    continue;

	case 'z':	/* --config */
	    ;
	    /* Config struct to variables mapper. This will overwrite */
	    /* all previously set options. Keep this in the same order than */
	    /* long_opts[] is. */
	    struct starter_config *cfg = read_cfg_file(optarg);

	    set_cfg_string(&pluto_log_file, cfg->setup.strings[KSF_PLUTOSTDERRLOG]);

	    fork_desired = cfg->setup.options[KBF_PLUTOFORK]; /* plutofork= */
	    log_with_timestamp =
		cfg->setup.options[KBF_PLUTOSTDERRLOGTIME];
	    force_busy = cfg->setup.options[KBF_FORCEBUSY];
	    strict_crl_policy = cfg->setup.options[KBF_STRICTCRLPOLICY];
	    crl_check_interval = cfg->setup.options[KBF_CRLCHECKINTERVAL];
	    uniqueIDs = cfg->setup.options[KBF_UNIQUEIDS];
	    /*
	     * We don't check interfaces= here because that part has been dealt
	     * with in _stackmanager before we started
	     */

	    set_cfg_string(&pluto_listen, cfg->setup.strings[KSF_LISTEN]);

	    pluto_port = cfg->setup.options[KBF_IKEPORT]; /* --ikeport */
	    /* no config option: ctlbase */
	    set_cfg_string(&pluto_shared_secrets_file, cfg->setup.strings[KSF_SECRETSFILE]); /* --secrets */
	    if(cfg->setup.strings[KSF_IPSECDIR] != NULL &&
		*cfg->setup.strings[KSF_IPSECDIR] != 0) {
			lsw_init_ipsecdir(cfg->setup.strings[KSF_IPSECDIR]); /* --ipsecdir */
	    }
	    set_cfg_string(&base_perpeer_logdir, cfg->setup.strings[KSF_PERPEERDIR]); /* --perpeerlogbase */
	    log_to_perpeer = cfg->setup.options[KBF_PERPEERLOG]; /* --perpeerlog */
	    no_retransmits = !cfg->setup.options[KBF_RETRANSMITS]; /* --noretransmits */
	    set_cfg_string(&coredir, cfg->setup.strings[KSF_DUMPDIR]); /* --dumpdir */
	    /* no config option: pluto_adns_option */
#ifdef NAT_TRAVERSAL
	    pluto_natt_float_port = cfg->setup.options[KBF_NATIKEPORT];
	    nat_traversal = cfg->setup.options[KBF_NATTRAVERSAL];
	    keep_alive = cfg->setup.options[KBF_KEEPALIVE];
	    force_keepalive = cfg->setup.options[KBF_FORCE_KEEPALIVE];
	    nat_t_spf = !cfg->setup.options[KBF_DISABLEPORTFLOATING];
#endif
	    set_cfg_string(&virtual_private,
			   cfg->setup.strings[KSF_VIRTUALPRIVATE]);
	    nhelpers = cfg->setup.options[KBF_NHELPERS];
#ifdef HAVE_LABELED_IPSEC
	    secctx_attr_value = cfg->setup.options[KBF_SECCTX];
#endif
#ifdef DEBUG
	    base_debugging = cfg->setup.options[KBF_PLUTODEBUG];
#endif
	    char *protostack = cfg->setup.strings[KSF_PROTOSTACK];
	    if (protostack == NULL || *protostack == 0)
	        kern_interface = USE_NETKEY;
	    else if (strcmp(protostack, "none") == 0)
		kern_interface = NO_KERNEL;
	    else if (strcmp(protostack, "auto") == 0)
		{
		    libreswan_log("The option protostack=auto is obsoleted, falling back to protostack=netkey\n");
		    kern_interface = USE_NETKEY;
		}
	    else if (strcmp(protostack, "klips") == 0)
		kern_interface = USE_KLIPS;
	    else if (strcmp(protostack, "mast") == 0)
		kern_interface = USE_MASTKLIPS;
	    else if (strcmp(protostack, "netkey") == 0 ||
		     strcmp(protostack, "native") == 0)
		kern_interface = USE_NETKEY;
	    else if (strcmp(protostack, "bsd") == 0 ||
		     strcmp(protostack, "kame") == 0 ||
		     strcmp(protostack, "bsdkame") == 0)
		kern_interface = USE_BSDKAME;
	    else if (strcmp(protostack, "win2k") == 0)
		kern_interface = USE_WIN2K;

	    confread_free(cfg);
	    continue;

	default:
#ifdef DEBUG
	    if (c >= DBG_OFFSET)
	    {
		base_debugging |= c - DBG_OFFSET;
		continue;
	    }
#	undef DBG_OFFSET
#endif
	    bad_case(c);
	}
	break;
    }
    if (optind != argc)
	usage("unexpected argument");
    reset_debugging();

#ifdef HAVE_NO_FORK
	fork_desired = FALSE;
	nhelpers = 0;
#endif

    /* default coredir to location compatible with SElinux */
    if(!coredir) {
	coredir = clone_str("/var/run/pluto", "coredir");
    }
    if(chdir(coredir) == -1) {
	int e = errno;
	libreswan_log("pluto: chdir() do dumpdir failed (%d: %s)\n",
	   e, strerror(e));
    }

    oco = lsw_init_options();
    lockfd = create_lock();

    /* select between logging methods */

    if (log_to_stderr_desired || log_to_file_desired) {
	log_to_syslog = FALSE;
    }
    if (!log_to_stderr_desired)
	   log_to_stderr = FALSE;

#ifdef DEBUG
#if 0
    if(kernel_ops->set_debug) {
	(*kernel_ops->set_debug)(cur_debugging, DBG_log, DBG_log);
    }
#endif
#endif

    /** create control socket.
     * We must create it before the parent process returns so that
     * there will be no race condition in using it.  The easiest
     * place to do this is before the daemon fork.
     */
    {
	err_t ugh = init_ctl_socket();

	if (ugh != NULL)
	{
	    fprintf(stderr, "pluto: %s", ugh);
	    exit_pluto(1);
	}
    }

    /* If not suppressed, do daemon fork */

    if (fork_desired)
    {
	{
	    pid_t pid = fork();

	    if (pid < 0)
	    {
		int e = errno;

		fprintf(stderr, "pluto: fork failed (%d %s)\n",
		    errno, strerror(e));
		exit_pluto(1);
	    }

	    if (pid != 0)
	    {
		/* parent: die, after filling PID into lock file.
		 * must not use exit_pluto: lock would be removed!
		 */
		exit(fill_lock(lockfd, pid)? 0 : 1);
	    }
	}

	if (setsid() < 0)
	{
	    int e = errno;

	    fprintf(stderr, "setsid() failed in main(). Errno %d: %s\n",
		errno, strerror(e));
	    exit_pluto(1);
	}
    }
    else
    {
	/* no daemon fork: we have to fill in lock file */
	(void) fill_lock(lockfd, getpid());
	if (isatty(fileno(stdout)))
	{
	    fprintf(stdout, "Pluto initialized\n");
	    fflush(stdout);
	}
    }

    /** Close everything but ctl_fd and (if needed) stderr.
     * There is some danger that a library that we don't know
     * about is using some fd that we don't know about.
     * I guess we'll soon find out.
     */
    {
	int i;

	for (i = getdtablesize() - 1; i >= 0; i--)  /* Bad hack */
	    if ((!log_to_stderr || i != 2)
	    && i != ctl_fd)
		close(i);

	/* make sure that stdin, stdout, stderr are reserved */
	if (open("/dev/null", O_RDONLY) != 0)
	    lsw_abort();
	if (dup2(0, 1) != 1)
	    lsw_abort();
	if (!log_to_stderr && dup2(0, 2) != 2)
	    lsw_abort();
    }

    init_constants();
    pluto_init_log();
    pluto_init_nss(oco->confddir);

#ifdef FIPS_CHECK
	const char *package_files[]= { IPSECLIBDIR"/setup",
				        IPSECLIBDIR"/addconn",
				        IPSECLIBDIR"/auto",
				        IPSECLIBDIR"/barf",
				        IPSECLIBDIR"/eroute",
  				        IPSECLIBDIR"/ikeping",
				        IPSECLIBDIR"/readwriteconf",
					IPSECLIBDIR"/_keycensor",
					IPSECLIBDIR"/klipsdebug",
					IPSECLIBDIR"/look",
					IPSECLIBDIR"/newhostkey",
					IPSECLIBDIR"/pf_key",
					IPSECLIBDIR"/_pluto_adns",
					IPSECLIBDIR"/_plutorun",
					IPSECLIBDIR"/ranbits",
					IPSECLIBDIR"/_realsetup",
					IPSECLIBDIR"/rsasigkey",
					IPSECLIBDIR"/pluto",
					IPSECLIBDIR"/_secretcensor",
					IPSECLIBDIR"/secrets",
					IPSECLIBDIR"/showhostkey",
					IPSECLIBDIR"/spi",
					IPSECLIBDIR"/spigrp",
					IPSECLIBDIR"/_stackmanager",
					IPSECLIBDIR"/tncfg",
					IPSECLIBDIR"/_updown",
					IPSECLIBDIR"/_updown.klips",
					IPSECLIBDIR"/_updown.mast",
					IPSECLIBDIR"/_updown.netkey",
					IPSECLIBDIR"/verify",
					IPSECLIBDIR"/whack",
					IPSECSBINDIR"/ipsec",
					NULL
					};

       if (Pluto_IsFIPS() && !FIPSCHECK_verify_files(package_files)) {
             loglog(RC_LOG_SERIOUS, "FATAL: FIPS integrity verification test failed");
             exit_pluto(10);
        }
#else
	libreswan_log("FIPS integrity support [disabled]");
#endif

#ifdef HAVE_LIBCAP_NG
	libreswan_log("libcap-ng support [enabled]");
#else
	libreswan_log("libcap-ng support [disabled]");
#endif

#ifdef USE_LINUX_AUDIT
	libreswan_log("Linux audit support [enabled]");
	/* test and log if audit is enabled on the system */
	int audit_fd, rc;
	audit_fd = audit_open();
	if (audit_fd < 0) {
                if (errno == EINVAL || errno == EPROTONOSUPPORT ||
                    errno == EAFNOSUPPORT)
		{
		 loglog(RC_LOG_SERIOUS, "Warning: kernel has no audit support");
		} else {
		loglog(RC_LOG_SERIOUS, "FATAL (SOON): audit_open() failed : %s", strerror(errno));
		 /* temp disabled exit_pluto(10); */
		}
	}
	rc = audit_log_acct_message(audit_fd, AUDIT_USER_START, NULL,
		"starting pluto daemon", NULL, -1, NULL, NULL, NULL, 1);
	close(audit_fd);
	if (rc < 0) {
		loglog(RC_LOG_SERIOUS, "FATAL: audit_log_acct_message failed: %s", strerror(errno));
		 exit_pluto(10);
	}
#else
	libreswan_log("Linux audit support [disabled]");
#endif

    /* Note: some scripts may look for this exact message -- don't change
     * ipsec barf was one, but it no longer does.
     */
    {
	const char *vc = ipsec_version_code();
#ifdef PLUTO_SENDS_VENDORID
	const char *v = init_pluto_vendorid();
	libreswan_log("Starting Pluto (Libreswan Version %s%s; Vendor ID %s) pid:%u"
		     , vc, compile_time_interop_options, v, getpid());
#else
	libreswan_log("Starting Pluto (Libreswan Version %s%s) pid:%u"
		     , vc, compile_time_interop_options, getpid());
#endif
	if(Pluto_IsFIPS()) {
		libreswan_log("Pluto is running in FIPS mode");
	} else {
		libreswan_log("Pluto is NOT running in FIPS mode");
	}

	if((vc[0]=='c' && vc[1]=='v' && vc[2]=='s') ||
	   (vc[2]=='g' && vc[3]=='i' && vc[4]=='t')) {
	    /*
	     * when people build RPMs from CVS or GIT, make sure they
	     * get blamed appropriately, and that we get some way to
	     * identify who did it, and when they did it. Use string concat,
	     * so that strings the binary can or classic SCCS "what", will find
	     * stuff too.
	     */
	    libreswan_log("@(#) built on "__DATE__":" __TIME__ " by " BUILDER);
	}
#if defined(USE_1DES)
	libreswan_log("WARNING: 1DES is enabled");
#endif
    }

    if(coredir) {
	libreswan_log("core dump dir: %s", coredir);
    }
    if(pluto_shared_secrets_file) {
	libreswan_log("secrets file: %s", pluto_shared_secrets_file);
    }

#ifdef LEAK_DETECTIVE
	libreswan_log("LEAK_DETECTIVE support [enabled]");
#else
	libreswan_log("LEAK_DETECTIVE support [disabled]");
#endif

#ifdef HAVE_OCF
       {
        struct stat buf;
	errno=0;

	if( stat("/dev/crypto",&buf) != -1)
		libreswan_log("OCF support for IKE via /dev/crypto [enabled]");
	else
		libreswan_log("OCF support for IKE via /dev/crypto [failed:%s]", strerror(errno));
       }
#else
	libreswan_log("OCF support for IKE [disabled]");
#endif

   /* Check for SAREF support */
#ifdef KLIPS_MAST
#include <ipsec_saref.h>
    {
	int e, sk, saref;
	saref = 1;
	errno=0;

	sk = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
	e = setsockopt(sk, IPPROTO_IP, IP_IPSEC_REFINFO, &saref, sizeof(saref));
	if (e == -1 ) {
		libreswan_log("SAref support [disabled]: %s" , strerror(errno));
	}
	else {
		libreswan_log("SAref support [enabled]");
	}
	errno=0;
	e = setsockopt(sk, IPPROTO_IP, IP_IPSEC_BINDREF, &saref, sizeof(saref));
	if (e == -1 ) {
		libreswan_log("SAbind support [disabled]: %s" , strerror(errno));
	}
	else {
		libreswan_log("SAbind support [enabled]");
	}


	close(sk);
    }
#endif

	libreswan_log("NSS crypto [enabled]");

#ifdef XAUTH_HAVE_PAM
	libreswan_log("XAUTH PAM support [enabled]");
#else
	libreswan_log("XAUTH PAM support [disabled]");
#endif

#ifdef HAVE_STATSD
	libreswan_log("HAVE_STATSD notification via /bin/libreswan-statsd enabled");
#else
	libreswan_log("HAVE_STATSD notification support [disabled]");
#endif


/** Log various impair-* functions if they were enabled */

    if(DBGP(IMPAIR_BUST_MI2))
	libreswan_log("Warning: IMPAIR_BUST_MI2 enabled");
    if(DBGP(IMPAIR_BUST_MR2))
	libreswan_log("Warning: IMPAIR_BUST_MR2 enabled");
    if(DBGP(IMPAIR_SA_CREATION))
	libreswan_log("Warning: IMPAIR_SA_CREATION enabled");
    if(DBGP(IMPAIR_JACOB_TWO_TWO))
	libreswan_log("Warning: IMPAIR_JACOB_TWO_TWO enabled");
    if(DBGP(IMPAIR_DIE_ONINFO))
	libreswan_log("Warning: IMPAIR_DIE_ONINFO enabled");
    if(DBGP(IMPAIR_MAJOR_VERSION_BUMP))
	libreswan_log("Warning: IMPAIR_MAJOR_VERSION_BUMP enabled");
    if(DBGP(IMPAIR_MINOR_VERSION_BUMP))
	libreswan_log("Warning: IMPAIR_MINOR_VERSION_BUMP enabled");
    if(DBGP(IMPAIR_RETRANSMITS))
	libreswan_log("Warning: IMPAIR_RETRANSMITS enabled");
    if(DBGP(IMPAIR_SEND_BOGUS_ISAKMP_FLAG))
	libreswan_log("Warning: IMPAIR_SEND_BOGUS_ISAKMP_FLAG enabled");
    if(DBGP(IMPAIR_DELAY_ADNS_KEY_ANSWER))
	libreswan_log("Warning: IMPAIR_DELAY_ADNS_KEY_ANSWER enabled");
    if(DBGP(IMPAIR_DELAY_ADNS_TXT_ANSWER))
	libreswan_log("Warning: IMPAIR_DELAY_ADNS_TXT_ANSWER enabled");

/** Initialize all of the various features */

#ifdef NAT_TRAVERSAL
    init_nat_traversal(nat_traversal, keep_alive, force_keepalive, nat_t_spf);
#endif

    init_virtual_ip(virtual_private);
    /* obsoletd by nss code init_rnd_pool(); */
    init_timer();
    init_secret();
    init_states();
    init_connections();
    init_crypto();
    init_crypto_helpers(nhelpers);
    load_lswcrypto();
    init_demux();
    init_kernel();
    init_adns();
    init_id();

#ifdef TPM
    init_tpm();
#endif

#if defined(LIBCURL) || defined(LDAP_VER)
    init_fetch();
#endif

    /* loading X.509 CA certificates */
    load_authcerts("CA cert", oco->cacerts_dir, AUTH_CA);
#if 0
    /* unused */
    /* loading X.509 AA certificates */
    load_authcerts("AA cert", oco->aacerts_dir, AUTH_AA);
#endif

    /* loading X.509 CRLs */
    load_crls();
    /* loading attribute certificates (experimental) */
    load_acerts();

    /*Loading CA certs from NSS DB*/
    load_authcerts_from_nss("CA cert",  AUTH_CA);

#ifdef HAVE_LABELED_IPSEC
    init_avc();
#endif

    daily_log_event();
    call_server();
    return -1;	/* Shouldn't ever reach this */
}
Beispiel #8
0
int main(int argc, char *argv[])
{
	GOptionContext *context;
	GError *err = NULL;
	struct sigaction sa;

#ifdef HAVE_CAPNG
	/* Drop capabilities */
	capng_clear(CAPNG_SELECT_BOTH);
	capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE | CAPNG_PERMITTED,
					CAP_NET_BIND_SERVICE, CAP_NET_ADMIN,
						CAP_NET_RAW, CAP_IPC_LOCK, -1);
	capng_apply(CAPNG_SELECT_BOTH);
#endif

	context = g_option_context_new(NULL);
	g_option_context_add_main_entries(context, options, NULL);

	if (g_option_context_parse(context, &argc, &argv, &err) == FALSE) {
		if (err != NULL) {
			g_printerr("%s\n", err->message);
			g_error_free(err);
		} else
			g_printerr("An unknown error occurred\n");
		exit(1);
	}

	g_option_context_free(context);

	if (option_detach == TRUE) {
		if (daemon(0, 0)) {
			perror("Can't start daemon");
			exit(1);
		}
	}

	umask(0077);

	openlog("hcitrace", LOG_PID | LOG_NDELAY | LOG_PERROR, LOG_DAEMON);

	syslog(LOG_INFO, "HCI trace deamon %s", VERSION);

	memset(&sa, 0, sizeof(sa));
	sa.sa_flags = SA_NOCLDSTOP;
	sa.sa_handler = sig_term;
	sigaction(SIGTERM, &sa, NULL);
	sigaction(SIGINT,  &sa, NULL);

	sa.sa_handler = sig_debug;
	sigaction(SIGUSR2, &sa, NULL);

	sa.sa_handler = SIG_IGN;
	sigaction(SIGPIPE, &sa, NULL);

	if (option_debug == TRUE) {
		syslog(LOG_INFO, "Enabling debug information");
	}

	event_loop = g_main_loop_new(NULL, FALSE);

	debug("Entering main loop");

	g_main_loop_run(event_loop);

	g_main_loop_unref(event_loop);

	syslog(LOG_INFO, "Exit");

	closelog();

	return 0;
}
VError XPosixDaemon::Daemonize()
{
	#if defined(HAVE_CAP_NG) && (!defined(XTOOLBOX_AS_STANDALONE) || !XTOOLBOX_AS_STANDALONE)

	//Nice page on capabilities :
	//https://people.redhat.com/sgrubb/libcap-ng/

	//Check if we have any capabilities
	if (capng_have_capabilities(CAPNG_SELECT_CAPS) > CAPNG_NONE)
	{
		capng_clear(CAPNG_SELECT_BOTH);

		capng_type_t type = static_cast<capng_type_t>(CAPNG_EFFECTIVE|CAPNG_PERMITTED);

		int res = capng_updatev(CAPNG_ADD, type,
			CAP_NET_BIND_SERVICE,	// Allows binding to TCP/UDP sockets below 1024
			CAP_NET_BROADCAST,	    // Allow broadcasting, listen to multicast
			-1);

		if (res != 0)
		{
			std::cerr << "error: capng: impossible to update the stored capabilities settings\n";
			return VE_FAIL_TO_DAEMONIZE;
		}

		res = capng_apply(CAPNG_SELECT_BOTH);

		if (res != 0)
		{
			std::cerr << "error: capng: impossible to apply the stored capabilities settings\n";
			return VE_FAIL_TO_DAEMONIZE;
		}
	}
	#endif // HAVE_CAP_NG



	std::cout << "entering in daemon-mode\n";
    pid_t pid = fork();

	// Parent process should now quit asap, with no side effects
	// on ressources shared with its child (eg. do not corrupt files).

	// As it turns out, it's not so easy to properly quit a process
	// that is not fully initialized : QuitAsynchronously() and exit()
	// end in a crash.

	// Two good candidates to quickly quit with no crash are _exit() and kill().

    if (pid > 0)
		_exit(0); // in the parent process

    if (pid < 0) // error
	{
		int err = errno;
		std::cerr << "error: failed to daemonize (errno: " << err << ")\n";
		return VE_FAIL_TO_DAEMONIZE;
	}

	// The child process becomes a session leader
    if (setsid() < 0)
	{
		std::cerr << "error: failed to creates a session and sets the process group ID\n";
        return VE_FAIL_TO_DAEMONIZE;
	}

	//Ignore a few signals - Might need some refinement !
    signal(SIGCHLD, SIG_IGN);
    signal(SIGHUP, SIG_IGN);

	//Reset umask to some permissive and known value
    umask(0);

	//Reset current working directory to some known value
    chdir("/");

	//Close standard file descriptors
	::close(STDIN_FILENO);
	::close(STDOUT_FILENO);
	::close(STDERR_FILENO);

	return VE_OK;
}
Beispiel #10
0
int main(void)
{
	int rc, i, len, last = get_last_cap();
	char *text;
	void *saved;

	puts("Doing basic bit tests...");
	capng_clear(CAPNG_SELECT_BOTH);
	if (capng_have_capabilities(CAPNG_SELECT_BOTH) != CAPNG_NONE) {
		puts("Failed clearing capabilities");
		abort();
	}
	saved = capng_save_state();
	capng_fill(CAPNG_SELECT_BOTH);
	if (capng_have_capabilities(CAPNG_SELECT_BOTH) != CAPNG_FULL) {
		puts("Failed filling capabilities");
		abort();
	}
	// Need to detect if version 1 or 2 capabilities
	text = capng_print_caps_numeric(CAPNG_PRINT_BUFFER, CAPNG_SELECT_CAPS);
	len = strlen(text);
	free(text);
	if (len < 80 && last > 30)	// The kernel & headers are mismatched
		last = 30;
	// Now test that restore still works
	capng_restore_state(&saved);
	if (capng_have_capabilities(CAPNG_SELECT_BOTH) != CAPNG_NONE) {
		puts("Failed restoring capabilities");
		abort();
	}
	printf("Doing advanced bit tests for %d capabilities...\n", last);
	for (i=0; i<=last; i++) {
		const char *name;
		capng_clear(CAPNG_SELECT_BOTH);
		rc = capng_update(CAPNG_ADD, CAPNG_EFFECTIVE, i);
		if (rc) {
			puts("Failed update test 1");
			abort();
		}
		rc = capng_have_capability(CAPNG_EFFECTIVE, i);
		if (rc == 0) {
			puts("Failed have capability test 1");
			capng_print_caps_numeric(CAPNG_PRINT_STDOUT,
					CAPNG_SELECT_CAPS);
			abort();
		}
		if(capng_have_capabilities(CAPNG_SELECT_CAPS)!=CAPNG_PARTIAL){
			puts("Failed have capabilities test 1");
			capng_print_caps_numeric(CAPNG_PRINT_STDOUT,
					CAPNG_SELECT_CAPS);
			abort();
		}
#if CAP_LAST_CAP > 31
		rc = capng_update(CAPNG_ADD, CAPNG_BOUNDING_SET, i);
		if (rc) {
			puts("Failed bset update test 2");
			abort();
		}
		rc = capng_have_capability(CAPNG_BOUNDING_SET, i);
		if (rc == 0) {
			puts("Failed bset have capability test 2");
			capng_print_caps_numeric(CAPNG_PRINT_STDOUT,
					CAPNG_SELECT_BOTH);
			abort();
		}
		if(capng_have_capabilities(CAPNG_SELECT_BOUNDS)!=CAPNG_PARTIAL){
			puts("Failed bset have capabilities test 2");
			capng_print_caps_numeric(CAPNG_PRINT_STDOUT,
					CAPNG_SELECT_BOTH);
			abort();
		}
#endif
		text=capng_print_caps_text(CAPNG_PRINT_BUFFER, CAPNG_EFFECTIVE);
		if (text == NULL) {
			puts("Failed getting print text to buffer");
			abort();
		}
		name = capng_capability_to_name(i);
		if (name == NULL) { 
			printf("Failed converting capability %d to name\n", i);
			abort();
		}
		if (strcmp(text, name)) {
			puts("Failed print text comparison");
			printf("%s != %s\n", text, name);
			abort();
		}
		free(text);
		// Now make sure the mask part is working
		capng_fill(CAPNG_SELECT_BOTH);
		rc = capng_update(CAPNG_DROP, CAPNG_EFFECTIVE, i);
		if (rc) {
			puts("Failed update test 3");
			abort();
		}
		// Should be partial
		if(capng_have_capabilities(CAPNG_SELECT_CAPS)!=CAPNG_PARTIAL){
			puts("Failed have capabilities test 3");
			capng_print_caps_numeric(CAPNG_PRINT_STDOUT,
					CAPNG_SELECT_CAPS);
			abort();
		}
		// Add back the bit and should be full capabilities
		rc = capng_update(CAPNG_ADD, CAPNG_EFFECTIVE, i);
		if (rc) {
			puts("Failed update test 4");
			abort();
		}
		if (capng_have_capabilities(CAPNG_SELECT_CAPS) != CAPNG_FULL){
			puts("Failed have capabilities test 4");
			capng_print_caps_numeric(CAPNG_PRINT_STDOUT,
					CAPNG_SELECT_CAPS);
			abort();
		}
	}
	// Now test the updatev function
	capng_clear(CAPNG_SELECT_BOTH);
	rc = capng_updatev(CAPNG_ADD, CAPNG_EFFECTIVE,
			CAP_CHOWN, CAP_FOWNER, CAP_KILL, -1);
	if (rc) {
		puts("Failed updatev test");
		abort();
	}
	rc = capng_have_capability(CAPNG_EFFECTIVE, CAP_CHOWN) &&
		capng_have_capability(CAPNG_EFFECTIVE, CAP_FOWNER) &&
		capng_have_capability(CAPNG_EFFECTIVE, CAP_KILL);
	if (rc == 0) {
		puts("Failed have updatev capability test");
		capng_print_caps_numeric(CAPNG_PRINT_STDOUT,
				CAPNG_SELECT_CAPS);
		abort();
	}

	return EXIT_SUCCESS;
}