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-rw-r--r--src/libcharon/daemon.c789
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diff --git a/src/libcharon/daemon.c b/src/libcharon/daemon.c
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+++ b/src/libcharon/daemon.c
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+/*
+ * Copyright (C) 2006-2009 Tobias Brunner
+ * Copyright (C) 2005-2009 Martin Willi
+ * Copyright (C) 2006 Daniel Roethlisberger
+ * Copyright (C) 2005 Jan Hutter
+ * Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+#include <stdio.h>
+#ifdef HAVE_PRCTL
+#include <sys/prctl.h>
+#endif
+#define _POSIX_PTHREAD_SEMANTICS /* for two param sigwait on OpenSolaris */
+#include <signal.h>
+#undef _POSIX_PTHREAD_SEMANTICS
+#include <pthread.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <time.h>
+#include <string.h>
+#include <getopt.h>
+#include <errno.h>
+#include <pwd.h>
+#include <grp.h>
+#ifdef CAPABILITIES
+#include <sys/capability.h>
+#endif /* CAPABILITIES */
+
+#include "daemon.h"
+
+#include <library.h>
+#include <utils/backtrace.h>
+#include <threading/thread.h>
+#include <selectors/traffic_selector.h>
+#include <config/proposal.h>
+
+#ifndef LOG_AUTHPRIV /* not defined on OpenSolaris */
+#define LOG_AUTHPRIV LOG_AUTH
+#endif
+
+typedef struct private_daemon_t private_daemon_t;
+
+/**
+ * Private additions to daemon_t, contains threads and internal functions.
+ */
+struct private_daemon_t {
+ /**
+ * Public members of daemon_t.
+ */
+ daemon_t public;
+
+ /**
+ * Signal set used for signal handling.
+ */
+ sigset_t signal_set;
+
+#ifdef CAPABILITIES
+ /**
+ * capabilities to keep
+ */
+ cap_t caps;
+#endif /* CAPABILITIES */
+};
+
+/**
+ * One and only instance of the daemon.
+ */
+daemon_t *charon;
+
+/**
+ * hook in library for debugging messages
+ */
+extern void (*dbg) (int level, char *fmt, ...);
+
+/**
+ * Logging hook for library logs, spreads debug message over bus
+ */
+static void dbg_bus(int level, char *fmt, ...)
+{
+ va_list args;
+
+ va_start(args, fmt);
+ charon->bus->vlog(charon->bus, DBG_LIB, level, fmt, args);
+ va_end(args);
+}
+
+/**
+ * Logging hook for library logs, using stderr output
+ */
+static void dbg_stderr(int level, char *fmt, ...)
+{
+ va_list args;
+
+ if (level <= 1)
+ {
+ va_start(args, fmt);
+ fprintf(stderr, "00[LIB] ");
+ vfprintf(stderr, fmt, args);
+ fprintf(stderr, "\n");
+ va_end(args);
+ }
+}
+
+/**
+ * Run the daemon and handle unix signals
+ */
+static void run(private_daemon_t *this)
+{
+ sigset_t set;
+
+ /* handle SIGINT, SIGHUP ans SIGTERM in this handler */
+ sigemptyset(&set);
+ sigaddset(&set, SIGINT);
+ sigaddset(&set, SIGHUP);
+ sigaddset(&set, SIGTERM);
+ sigprocmask(SIG_BLOCK, &set, NULL);
+
+ while (TRUE)
+ {
+ int sig;
+ int error;
+
+ error = sigwait(&set, &sig);
+ if (error)
+ {
+ DBG1(DBG_DMN, "error %d while waiting for a signal", error);
+ return;
+ }
+ switch (sig)
+ {
+ case SIGHUP:
+ {
+ DBG1(DBG_DMN, "signal of type SIGHUP received. Ignored");
+ break;
+ }
+ case SIGINT:
+ {
+ DBG1(DBG_DMN, "signal of type SIGINT received. Shutting down");
+ charon->bus->alert(charon->bus, ALERT_SHUTDOWN_SIGNAL, sig);
+ return;
+ }
+ case SIGTERM:
+ {
+ DBG1(DBG_DMN, "signal of type SIGTERM received. Shutting down");
+ charon->bus->alert(charon->bus, ALERT_SHUTDOWN_SIGNAL, sig);
+ return;
+ }
+ default:
+ {
+ DBG1(DBG_DMN, "unknown signal %d received. Ignored", sig);
+ break;
+ }
+ }
+ }
+}
+
+/**
+ * Clean up all daemon resources
+ */
+static void destroy(private_daemon_t *this)
+{
+ /* terminate all idle threads */
+ if (this->public.processor)
+ {
+ this->public.processor->set_threads(this->public.processor, 0);
+ }
+ /* close all IKE_SAs */
+ if (this->public.ike_sa_manager)
+ {
+ this->public.ike_sa_manager->flush(this->public.ike_sa_manager);
+ }
+ DESTROY_IF(this->public.receiver);
+ /* unload plugins to release threads */
+ lib->plugins->unload(lib->plugins);
+#ifdef CAPABILITIES
+ cap_free(this->caps);
+#endif /* CAPABILITIES */
+ DESTROY_IF(this->public.traps);
+ DESTROY_IF(this->public.ike_sa_manager);
+ DESTROY_IF(this->public.kernel_interface);
+ DESTROY_IF(this->public.scheduler);
+ DESTROY_IF(this->public.controller);
+ DESTROY_IF(this->public.eap);
+ DESTROY_IF(this->public.sim);
+#ifdef ME
+ DESTROY_IF(this->public.connect_manager);
+ DESTROY_IF(this->public.mediation_manager);
+#endif /* ME */
+ DESTROY_IF(this->public.backends);
+ DESTROY_IF(this->public.credentials);
+ DESTROY_IF(this->public.sender);
+ DESTROY_IF(this->public.socket);
+ /* wait until all threads are gone */
+ DESTROY_IF(this->public.processor);
+
+ /* rehook library logging, shutdown logging */
+ dbg = dbg_stderr;
+ DESTROY_IF(this->public.bus);
+ this->public.file_loggers->destroy_offset(this->public.file_loggers,
+ offsetof(file_logger_t, destroy));
+ this->public.sys_loggers->destroy_offset(this->public.sys_loggers,
+ offsetof(sys_logger_t, destroy));
+ free(this);
+}
+
+/**
+ * drop daemon capabilities
+ */
+static bool drop_capabilities(private_daemon_t *this)
+{
+#ifdef HAVE_PRCTL
+ prctl(PR_SET_KEEPCAPS, 1, 0, 0, 0);
+#endif
+
+ if (setgid(charon->gid) != 0)
+ {
+ DBG1(DBG_DMN, "change to unprivileged group failed");
+ return FALSE;
+ }
+ if (setuid(charon->uid) != 0)
+ {
+ DBG1(DBG_DMN, "change to unprivileged user failed");
+ return FALSE;
+ }
+
+#ifdef CAPABILITIES
+ if (cap_set_proc(this->caps) != 0)
+ {
+ DBG1(DBG_DMN, "unable to drop daemon capabilities");
+ return FALSE;
+ }
+#endif /* CAPABILITIES */
+ return TRUE;
+}
+
+/**
+ * Implementation of daemon_t.keep_cap
+ */
+static void keep_cap(private_daemon_t *this, u_int cap)
+{
+#ifdef CAPABILITIES
+ cap_set_flag(this->caps, CAP_EFFECTIVE, 1, &cap, CAP_SET);
+ cap_set_flag(this->caps, CAP_INHERITABLE, 1, &cap, CAP_SET);
+ cap_set_flag(this->caps, CAP_PERMITTED, 1, &cap, CAP_SET);
+#endif /* CAPABILITIES */
+}
+
+/**
+ * lookup UID and GID
+ */
+static bool lookup_uid_gid(private_daemon_t *this)
+{
+#ifdef IPSEC_USER
+ {
+ char buf[1024];
+ struct passwd passwd, *pwp;
+
+ if (getpwnam_r(IPSEC_USER, &passwd, buf, sizeof(buf), &pwp) != 0 ||
+ pwp == NULL)
+ {
+ DBG1(DBG_DMN, "resolving user '"IPSEC_USER"' failed");
+ return FALSE;
+ }
+ charon->uid = pwp->pw_uid;
+ }
+#endif
+#ifdef IPSEC_GROUP
+ {
+ char buf[1024];
+ struct group group, *grp;
+
+ if (getgrnam_r(IPSEC_GROUP, &group, buf, sizeof(buf), &grp) != 0 ||
+ grp == NULL)
+ {
+ DBG1(DBG_DMN, "resolving group '"IPSEC_GROUP"' failed");
+ return FALSE;
+ }
+ charon->gid = grp->gr_gid;
+ }
+#endif
+ return TRUE;
+}
+
+/**
+ * Log loaded plugins
+ */
+static void print_plugins()
+{
+ char buf[512], *plugin;
+ int len = 0;
+ enumerator_t *enumerator;
+
+ buf[0] = '\0';
+ enumerator = lib->plugins->create_plugin_enumerator(lib->plugins);
+ while (len < sizeof(buf) && enumerator->enumerate(enumerator, &plugin))
+ {
+ len += snprintf(&buf[len], sizeof(buf)-len, "%s ", plugin);
+ }
+ enumerator->destroy(enumerator);
+ DBG1(DBG_DMN, "loaded plugins: %s", buf);
+}
+
+/**
+ * Initialize logging
+ */
+static void initialize_loggers(private_daemon_t *this, bool use_stderr,
+ level_t levels[])
+{
+ sys_logger_t *sys_logger;
+ file_logger_t *file_logger;
+ enumerator_t *enumerator;
+ char *facility, *filename;
+ int loggers_defined = 0;
+ debug_t group;
+ level_t def;
+ bool append;
+ FILE *file;
+
+ /* setup sysloggers */
+ enumerator = lib->settings->create_section_enumerator(lib->settings,
+ "charon.syslog");
+ while (enumerator->enumerate(enumerator, &facility))
+ {
+ loggers_defined++;
+ if (streq(facility, "daemon"))
+ {
+ sys_logger = sys_logger_create(LOG_DAEMON);
+ }
+ else if (streq(facility, "auth"))
+ {
+ sys_logger = sys_logger_create(LOG_AUTHPRIV);
+ }
+ else
+ {
+ continue;
+ }
+ def = lib->settings->get_int(lib->settings,
+ "charon.syslog.%s.default", 1, facility);
+ for (group = 0; group < DBG_MAX; group++)
+ {
+ sys_logger->set_level(sys_logger, group,
+ lib->settings->get_int(lib->settings,
+ "charon.syslog.%s.%N", def,
+ facility, debug_lower_names, group));
+ }
+ this->public.sys_loggers->insert_last(this->public.sys_loggers,
+ sys_logger);
+ this->public.bus->add_listener(this->public.bus, &sys_logger->listener);
+ }
+ enumerator->destroy(enumerator);
+
+ /* and file loggers */
+ enumerator = lib->settings->create_section_enumerator(lib->settings,
+ "charon.filelog");
+ while (enumerator->enumerate(enumerator, &filename))
+ {
+ loggers_defined++;
+ if (streq(filename, "stderr"))
+ {
+ file = stderr;
+ }
+ else if (streq(filename, "stdout"))
+ {
+ file = stdout;
+ }
+ else
+ {
+ append = lib->settings->get_bool(lib->settings,
+ "charon.filelog.%s.append", TRUE, filename);
+ file = fopen(filename, append ? "a" : "w");
+ if (file == NULL)
+ {
+ DBG1(DBG_DMN, "opening file %s for logging failed: %s",
+ filename, strerror(errno));
+ continue;
+ }
+ }
+ file_logger = file_logger_create(file);
+ def = lib->settings->get_int(lib->settings,
+ "charon.filelog.%s.default", 1, filename);
+ for (group = 0; group < DBG_MAX; group++)
+ {
+ file_logger->set_level(file_logger, group,
+ lib->settings->get_int(lib->settings,
+ "charon.filelog.%s.%N", def,
+ filename, debug_lower_names, group));
+ }
+ this->public.file_loggers->insert_last(this->public.file_loggers,
+ file_logger);
+ this->public.bus->add_listener(this->public.bus, &file_logger->listener);
+
+ }
+ enumerator->destroy(enumerator);
+
+ /* set up legacy style default loggers provided via command-line */
+ if (!loggers_defined)
+ {
+ /* set up default stdout file_logger */
+ file_logger = file_logger_create(stdout);
+ this->public.bus->add_listener(this->public.bus, &file_logger->listener);
+ this->public.file_loggers->insert_last(this->public.file_loggers,
+ file_logger);
+ /* set up default daemon sys_logger */
+ sys_logger = sys_logger_create(LOG_DAEMON);
+ this->public.bus->add_listener(this->public.bus, &sys_logger->listener);
+ this->public.sys_loggers->insert_last(this->public.sys_loggers,
+ sys_logger);
+ for (group = 0; group < DBG_MAX; group++)
+ {
+ sys_logger->set_level(sys_logger, group, levels[group]);
+ if (use_stderr)
+ {
+ file_logger->set_level(file_logger, group, levels[group]);
+ }
+ }
+
+ /* set up default auth sys_logger */
+ sys_logger = sys_logger_create(LOG_AUTHPRIV);
+ this->public.bus->add_listener(this->public.bus, &sys_logger->listener);
+ this->public.sys_loggers->insert_last(this->public.sys_loggers,
+ sys_logger);
+ sys_logger->set_level(sys_logger, DBG_ANY, LEVEL_AUDIT);
+ }
+}
+
+/**
+ * Initialize the daemon
+ */
+static bool initialize(private_daemon_t *this, bool syslog, level_t levels[])
+{
+ /* for uncritical pseudo random numbers */
+ srandom(time(NULL) + getpid());
+
+ /* setup bus and it's listeners first to enable log output */
+ this->public.bus = bus_create();
+ /* set up hook to log dbg message in library via charons message bus */
+ dbg = dbg_bus;
+
+ initialize_loggers(this, !syslog, levels);
+
+ DBG1(DBG_DMN, "Starting IKEv2 charon daemon (strongSwan "VERSION")");
+
+ if (lib->integrity)
+ {
+ DBG1(DBG_DMN, "integrity tests enabled:");
+ DBG1(DBG_DMN, "lib 'libstrongswan': passed file and segment integrity tests");
+ DBG1(DBG_DMN, "daemon 'charon': passed file integrity test");
+ }
+
+ /* load secrets, ca certificates and crls */
+ this->public.processor = processor_create();
+ this->public.scheduler = scheduler_create();
+ this->public.credentials = credential_manager_create();
+ this->public.controller = controller_create();
+ this->public.eap = eap_manager_create();
+ this->public.sim = sim_manager_create();
+ this->public.backends = backend_manager_create();
+ this->public.kernel_interface = kernel_interface_create();
+ this->public.socket = socket_manager_create();
+ this->public.traps = trap_manager_create();
+
+ /* load plugins, further infrastructure may need it */
+ if (!lib->plugins->load(lib->plugins, NULL,
+ lib->settings->get_str(lib->settings, "charon.load", PLUGINS)))
+ {
+ return FALSE;
+ }
+
+ print_plugins();
+
+ this->public.ike_sa_manager = ike_sa_manager_create();
+ if (this->public.ike_sa_manager == NULL)
+ {
+ return FALSE;
+ }
+ this->public.sender = sender_create();
+ this->public.receiver = receiver_create();
+ if (this->public.receiver == NULL)
+ {
+ return FALSE;
+ }
+
+#ifdef ME
+ this->public.connect_manager = connect_manager_create();
+ if (this->public.connect_manager == NULL)
+ {
+ return FALSE;
+ }
+ this->public.mediation_manager = mediation_manager_create();
+#endif /* ME */
+
+ return TRUE;
+}
+
+/**
+ * Handle SIGSEGV/SIGILL signals raised by threads
+ */
+static void segv_handler(int signal)
+{
+ backtrace_t *backtrace;
+
+ DBG1(DBG_DMN, "thread %u received %d", thread_current_id(), signal);
+ backtrace = backtrace_create(2);
+ backtrace->log(backtrace, stderr);
+ backtrace->destroy(backtrace);
+
+ DBG1(DBG_DMN, "killing ourself, received critical signal");
+ abort();
+}
+
+/**
+ * Create the daemon.
+ */
+private_daemon_t *daemon_create(void)
+{
+ struct sigaction action;
+ private_daemon_t *this = malloc_thing(private_daemon_t);
+
+ /* assign methods */
+ this->public.keep_cap = (void(*)(daemon_t*, u_int cap))keep_cap;
+
+ /* NULL members for clean destruction */
+ this->public.socket = NULL;
+ this->public.ike_sa_manager = NULL;
+ this->public.traps = NULL;
+ this->public.credentials = NULL;
+ this->public.backends = NULL;
+ this->public.sender= NULL;
+ this->public.receiver = NULL;
+ this->public.scheduler = NULL;
+ this->public.kernel_interface = NULL;
+ this->public.processor = NULL;
+ this->public.controller = NULL;
+ this->public.eap = NULL;
+ this->public.sim = NULL;
+ this->public.bus = NULL;
+ this->public.file_loggers = linked_list_create();
+ this->public.sys_loggers = linked_list_create();
+#ifdef ME
+ this->public.connect_manager = NULL;
+ this->public.mediation_manager = NULL;
+#endif /* ME */
+ this->public.uid = 0;
+ this->public.gid = 0;
+
+#ifdef CAPABILITIES
+ this->caps = cap_init();
+ keep_cap(this, CAP_NET_ADMIN);
+ if (lib->leak_detective)
+ {
+ keep_cap(this, CAP_SYS_NICE);
+ }
+#endif /* CAPABILITIES */
+
+ /* add handler for SEGV and ILL,
+ * INT, TERM and HUP are handled by sigwait() in run() */
+ action.sa_handler = segv_handler;
+ action.sa_flags = 0;
+ sigemptyset(&action.sa_mask);
+ sigaddset(&action.sa_mask, SIGINT);
+ sigaddset(&action.sa_mask, SIGTERM);
+ sigaddset(&action.sa_mask, SIGHUP);
+ sigaction(SIGSEGV, &action, NULL);
+ sigaction(SIGILL, &action, NULL);
+ sigaction(SIGBUS, &action, NULL);
+ action.sa_handler = SIG_IGN;
+ sigaction(SIGPIPE, &action, NULL);
+
+ pthread_sigmask(SIG_SETMASK, &action.sa_mask, NULL);
+
+ return this;
+}
+
+/**
+ * Check/create PID file, return TRUE if already running
+ */
+static bool check_pidfile()
+{
+ struct stat stb;
+ FILE *file;
+
+ if (stat(PID_FILE, &stb) == 0)
+ {
+ file = fopen(PID_FILE, "r");
+ if (file)
+ {
+ char buf[64];
+ pid_t pid = 0;
+
+ memset(buf, 0, sizeof(buf));
+ if (fread(buf, 1, sizeof(buf), file))
+ {
+ pid = atoi(buf);
+ }
+ fclose(file);
+ if (pid && kill(pid, 0) == 0)
+ { /* such a process is running */
+ return TRUE;
+ }
+ }
+ DBG1(DBG_DMN, "removing pidfile '"PID_FILE"', process not running");
+ unlink(PID_FILE);
+ }
+
+ /* create new pidfile */
+ file = fopen(PID_FILE, "w");
+ if (file)
+ {
+ fprintf(file, "%d\n", getpid());
+ ignore_result(fchown(fileno(file), charon->uid, charon->gid));
+ fclose(file);
+ }
+ return FALSE;
+}
+
+/**
+ * print command line usage and exit
+ */
+static void usage(const char *msg)
+{
+ if (msg != NULL && *msg != '\0')
+ {
+ fprintf(stderr, "%s\n", msg);
+ }
+ fprintf(stderr, "Usage: charon\n"
+ " [--help]\n"
+ " [--version]\n"
+ " [--use-syslog]\n"
+ " [--debug-<type> <level>]\n"
+ " <type>: log context type (dmn|mgr|ike|chd|job|cfg|knl|net|enc|lib)\n"
+ " <level>: log verbosity (-1 = silent, 0 = audit, 1 = control,\n"
+ " 2 = controlmore, 3 = raw, 4 = private)\n"
+ "\n"
+ );
+ exit(msg == NULL? 0 : 1);
+}
+
+/**
+ * Main function, manages the daemon.
+ */
+int main(int argc, char *argv[])
+{
+ bool use_syslog = FALSE;
+ private_daemon_t *private_charon;
+ level_t levels[DBG_MAX];
+ int group;
+
+ /* logging for library during initialization, as we have no bus yet */
+ dbg = dbg_stderr;
+
+ /* initialize library */
+ if (!library_init(NULL))
+ {
+ library_deinit();
+ exit(SS_RC_LIBSTRONGSWAN_INTEGRITY);
+ }
+
+ if (lib->integrity &&
+ !lib->integrity->check_file(lib->integrity, "charon", argv[0]))
+ {
+ dbg_stderr(1, "integrity check of charon failed");
+ library_deinit();
+ exit(SS_RC_DAEMON_INTEGRITY);
+ }
+
+ lib->printf_hook->add_handler(lib->printf_hook, 'R',
+ traffic_selector_printf_hook,
+ PRINTF_HOOK_ARGTYPE_POINTER,
+ PRINTF_HOOK_ARGTYPE_END);
+ lib->printf_hook->add_handler(lib->printf_hook, 'P',
+ proposal_printf_hook,
+ PRINTF_HOOK_ARGTYPE_POINTER,
+ PRINTF_HOOK_ARGTYPE_END);
+ private_charon = daemon_create();
+ charon = (daemon_t*)private_charon;
+
+ /* use CTRL loglevel for default */
+ for (group = 0; group < DBG_MAX; group++)
+ {
+ levels[group] = LEVEL_CTRL;
+ }
+
+ /* handle arguments */
+ for (;;)
+ {
+ struct option long_opts[] = {
+ { "help", no_argument, NULL, 'h' },
+ { "version", no_argument, NULL, 'v' },
+ { "use-syslog", no_argument, NULL, 'l' },
+ /* TODO: handle "debug-all" */
+ { "debug-dmn", required_argument, &group, DBG_DMN },
+ { "debug-mgr", required_argument, &group, DBG_MGR },
+ { "debug-ike", required_argument, &group, DBG_IKE },
+ { "debug-chd", required_argument, &group, DBG_CHD },
+ { "debug-job", required_argument, &group, DBG_JOB },
+ { "debug-cfg", required_argument, &group, DBG_CFG },
+ { "debug-knl", required_argument, &group, DBG_KNL },
+ { "debug-net", required_argument, &group, DBG_NET },
+ { "debug-enc", required_argument, &group, DBG_ENC },
+ { "debug-lib", required_argument, &group, DBG_LIB },
+ { 0,0,0,0 }
+ };
+
+ int c = getopt_long(argc, argv, "", long_opts, NULL);
+ switch (c)
+ {
+ case EOF:
+ break;
+ case 'h':
+ usage(NULL);
+ break;
+ case 'v':
+ printf("Linux strongSwan %s\n", VERSION);
+ exit(0);
+ case 'l':
+ use_syslog = TRUE;
+ continue;
+ case 0:
+ /* option is in group */
+ levels[group] = atoi(optarg);
+ continue;
+ default:
+ usage("");
+ break;
+ }
+ break;
+ }
+
+ if (!lookup_uid_gid(private_charon))
+ {
+ DBG1(DBG_DMN, "invalid uid/gid - aborting charon");
+ destroy(private_charon);
+ library_deinit();
+ exit(SS_RC_INITIALIZATION_FAILED);
+ }
+
+ /* initialize daemon */
+ if (!initialize(private_charon, use_syslog, levels))
+ {
+ DBG1(DBG_DMN, "initialization failed - aborting charon");
+ destroy(private_charon);
+ library_deinit();
+ exit(SS_RC_INITIALIZATION_FAILED);
+ }
+
+ if (check_pidfile())
+ {
+ DBG1(DBG_DMN, "charon already running (\""PID_FILE"\" exists)");
+ destroy(private_charon);
+ library_deinit();
+ exit(-1);
+ }
+
+ if (!drop_capabilities(private_charon))
+ {
+ DBG1(DBG_DMN, "capability dropping failed - aborting charon");
+ destroy(private_charon);
+ library_deinit();
+ exit(SS_RC_INITIALIZATION_FAILED);
+ }
+
+ /* start the engine, go multithreaded */
+ charon->processor->set_threads(charon->processor,
+ lib->settings->get_int(lib->settings, "charon.threads",
+ DEFAULT_THREADS));
+
+ /* run daemon */
+ run(private_charon);
+
+ /* normal termination, cleanup and exit */
+ destroy(private_charon);
+ unlink(PID_FILE);
+
+ library_deinit();
+
+ return 0;
+}
+