mirror of
https://github.com/systemd/systemd-stable.git
synced 2024-12-24 21:34:08 +03:00
773 lines
24 KiB
C
773 lines
24 KiB
C
/*-*- Mode: C; c-basic-offset: 8 -*-*/
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2010 Lennart Poettering
|
|
|
|
systemd 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.
|
|
|
|
systemd 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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include <dbus/dbus.h>
|
|
|
|
#include <stdio.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <getopt.h>
|
|
#include <signal.h>
|
|
#include <sys/wait.h>
|
|
#include <fcntl.h>
|
|
|
|
#include "manager.h"
|
|
#include "log.h"
|
|
#include "mount-setup.h"
|
|
#include "hostname-setup.h"
|
|
#include "load-fragment.h"
|
|
#include "fdset.h"
|
|
|
|
static enum {
|
|
ACTION_RUN,
|
|
ACTION_HELP,
|
|
ACTION_TEST,
|
|
ACTION_DUMP_CONFIGURATION_ITEMS
|
|
} action = ACTION_RUN;
|
|
|
|
static char *default_unit = NULL;
|
|
static ManagerRunningAs running_as = _MANAGER_RUNNING_AS_INVALID;
|
|
|
|
static bool dump_core = true;
|
|
static bool crash_shell = false;
|
|
static int crash_chvt = -1;
|
|
static bool confirm_spawn = false;
|
|
static FILE* serialization = NULL;
|
|
|
|
_noreturn static void freeze(void) {
|
|
for (;;)
|
|
pause();
|
|
}
|
|
|
|
static void nop_handler(int sig) {
|
|
}
|
|
|
|
_noreturn static void crash(int sig) {
|
|
|
|
if (!dump_core)
|
|
log_error("Caught <%s>, not dumping core.", strsignal(sig));
|
|
else {
|
|
struct sigaction sa;
|
|
pid_t pid;
|
|
|
|
/* We want to wait for the core process, hence let's enable SIGCHLD */
|
|
zero(sa);
|
|
sa.sa_handler = nop_handler;
|
|
sa.sa_flags = SA_NOCLDSTOP|SA_RESTART;
|
|
assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
|
|
|
|
if ((pid = fork()) < 0)
|
|
log_error("Caught <%s>, cannot fork for core dump: %s", strsignal(sig), strerror(errno));
|
|
|
|
else if (pid == 0) {
|
|
struct rlimit rl;
|
|
|
|
/* Enable default signal handler for core dump */
|
|
zero(sa);
|
|
sa.sa_handler = SIG_DFL;
|
|
assert_se(sigaction(sig, &sa, NULL) == 0);
|
|
|
|
/* Don't limit the core dump size */
|
|
zero(rl);
|
|
rl.rlim_cur = RLIM_INFINITY;
|
|
rl.rlim_max = RLIM_INFINITY;
|
|
setrlimit(RLIMIT_CORE, &rl);
|
|
|
|
/* Just to be sure... */
|
|
assert_se(chdir("/") == 0);
|
|
|
|
/* Raise the signal again */
|
|
raise(sig);
|
|
|
|
assert_not_reached("We shouldn't be here...");
|
|
_exit(1);
|
|
|
|
} else {
|
|
int status, r;
|
|
|
|
/* Order things nicely. */
|
|
if ((r = waitpid(pid, &status, 0)) < 0)
|
|
log_error("Caught <%s>, waitpid() failed: %s", strsignal(sig), strerror(errno));
|
|
else if (!WCOREDUMP(status))
|
|
log_error("Caught <%s>, core dump failed.", strsignal(sig));
|
|
else
|
|
log_error("Caught <%s>, dumped core as pid %llu.", strsignal(sig), (unsigned long long) pid);
|
|
}
|
|
}
|
|
|
|
if (crash_chvt)
|
|
chvt(crash_chvt);
|
|
|
|
if (crash_shell) {
|
|
struct sigaction sa;
|
|
pid_t pid;
|
|
|
|
log_info("Executing crash shell in 10s...");
|
|
sleep(10);
|
|
|
|
/* Let the kernel reap children for us */
|
|
zero(sa);
|
|
sa.sa_handler = SIG_IGN;
|
|
sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART;
|
|
assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
|
|
|
|
if ((pid = fork()) < 0)
|
|
log_error("Failed to fork off crash shell: %s", strerror(errno));
|
|
else if (pid == 0) {
|
|
execl("/bin/sh", "/bin/sh", NULL);
|
|
|
|
log_error("execl() failed: %s", strerror(errno));
|
|
_exit(1);
|
|
}
|
|
|
|
log_info("Successfully spawned crash shall as pid %llu.", (unsigned long long) pid);
|
|
}
|
|
|
|
log_info("Freezing execution.");
|
|
freeze();
|
|
}
|
|
|
|
static void install_crash_handler(void) {
|
|
struct sigaction sa;
|
|
|
|
zero(sa);
|
|
|
|
sa.sa_handler = crash;
|
|
sa.sa_flags = SA_NODEFER;
|
|
|
|
assert_se(sigaction(SIGSEGV, &sa, NULL) == 0);
|
|
assert_se(sigaction(SIGILL, &sa, NULL) == 0);
|
|
assert_se(sigaction(SIGFPE, &sa, NULL) == 0);
|
|
assert_se(sigaction(SIGBUS, &sa, NULL) == 0);
|
|
assert_se(sigaction(SIGQUIT, &sa, NULL) == 0);
|
|
assert_se(sigaction(SIGABRT, &sa, NULL) == 0);
|
|
}
|
|
|
|
static int console_setup(void) {
|
|
int tty_fd = -1, null_fd = -1, r = 0;
|
|
|
|
/* If we are init, we connect stdout/stderr to /dev/console
|
|
* and stdin to /dev/null and make sure we don't have a
|
|
* controlling tty. */
|
|
|
|
release_terminal();
|
|
|
|
if ((tty_fd = open_terminal("/dev/console", O_WRONLY)) < 0) {
|
|
log_error("Failed to open /dev/console: %s", strerror(-tty_fd));
|
|
r = -tty_fd;
|
|
goto finish;
|
|
}
|
|
|
|
if ((null_fd = open("/dev/null", O_RDONLY)) < 0) {
|
|
log_error("Failed to open /dev/null: %m");
|
|
r = -errno;
|
|
goto finish;
|
|
}
|
|
|
|
assert(tty_fd >= 3);
|
|
assert(null_fd >= 3);
|
|
|
|
if (reset_terminal(tty_fd) < 0)
|
|
log_error("Failed to reset /dev/console: %m");
|
|
|
|
if (dup2(tty_fd, STDOUT_FILENO) < 0 ||
|
|
dup2(tty_fd, STDERR_FILENO) < 0 ||
|
|
dup2(null_fd, STDIN_FILENO) < 0) {
|
|
log_error("Failed to dup2() device: %m");
|
|
r = -errno;
|
|
goto finish;
|
|
}
|
|
|
|
r = 0;
|
|
|
|
finish:
|
|
if (tty_fd >= 0)
|
|
close_nointr_nofail(tty_fd);
|
|
|
|
if (null_fd >= 0)
|
|
close_nointr_nofail(null_fd);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int set_default_unit(const char *u) {
|
|
char *c;
|
|
|
|
assert(u);
|
|
|
|
if (!(c = strdup(u)))
|
|
return -ENOMEM;
|
|
|
|
free(default_unit);
|
|
default_unit = c;
|
|
return 0;
|
|
}
|
|
|
|
static int parse_proc_cmdline_word(const char *word) {
|
|
|
|
static const char * const rlmap[] = {
|
|
"single", SPECIAL_RUNLEVEL1_TARGET,
|
|
"-s", SPECIAL_RUNLEVEL1_TARGET,
|
|
"s", SPECIAL_RUNLEVEL1_TARGET,
|
|
"S", SPECIAL_RUNLEVEL1_TARGET,
|
|
"1", SPECIAL_RUNLEVEL1_TARGET,
|
|
"2", SPECIAL_RUNLEVEL2_TARGET,
|
|
"3", SPECIAL_RUNLEVEL3_TARGET,
|
|
"4", SPECIAL_RUNLEVEL4_TARGET,
|
|
"5", SPECIAL_RUNLEVEL5_TARGET
|
|
};
|
|
|
|
if (startswith(word, "systemd.default="))
|
|
return set_default_unit(word + 16);
|
|
|
|
else if (startswith(word, "systemd.log_target=")) {
|
|
|
|
if (log_set_target_from_string(word + 19) < 0)
|
|
log_warning("Failed to parse log target %s. Ignoring.", word + 19);
|
|
|
|
} else if (startswith(word, "systemd.log_level=")) {
|
|
|
|
if (log_set_max_level_from_string(word + 18) < 0)
|
|
log_warning("Failed to parse log level %s. Ignoring.", word + 18);
|
|
|
|
} else if (startswith(word, "systemd.dump_core=")) {
|
|
int r;
|
|
|
|
if ((r = parse_boolean(word + 18)) < 0)
|
|
log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18);
|
|
else
|
|
dump_core = r;
|
|
|
|
} else if (startswith(word, "systemd.crash_shell=")) {
|
|
int r;
|
|
|
|
if ((r = parse_boolean(word + 20)) < 0)
|
|
log_warning("Failed to parse crash shell switch %s, Ignoring.", word + 20);
|
|
else
|
|
crash_shell = r;
|
|
|
|
|
|
} else if (startswith(word, "systemd.confirm_spawn=")) {
|
|
int r;
|
|
|
|
if ((r = parse_boolean(word + 22)) < 0)
|
|
log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word + 22);
|
|
else
|
|
confirm_spawn = r;
|
|
|
|
} else if (startswith(word, "systemd.crash_chvt=")) {
|
|
int k;
|
|
|
|
if (safe_atoi(word + 19, &k) < 0)
|
|
log_warning("Failed to parse crash chvt switch %s, Ignoring.", word + 19);
|
|
else
|
|
crash_chvt = k;
|
|
|
|
} else if (startswith(word, "systemd.")) {
|
|
|
|
log_warning("Unknown kernel switch %s. Ignoring.", word);
|
|
|
|
log_info("Supported kernel switches:");
|
|
log_info("systemd.default=UNIT Default unit to start");
|
|
log_info("systemd.log_target=console|kmsg|syslog Log target");
|
|
log_info("systemd.log_level=LEVEL Log level");
|
|
log_info("systemd.dump_core=0|1 Dump core on crash");
|
|
log_info("systemd.crash_shell=0|1 On crash run shell");
|
|
log_info("systemd.crash_chvt=N Change to VT #N on crash");
|
|
log_info("systemd.confirm_spawn=0|1 Confirm every process spawn");
|
|
|
|
} else {
|
|
unsigned i;
|
|
|
|
/* SysV compatibility */
|
|
for (i = 0; i < ELEMENTSOF(rlmap); i += 2)
|
|
if (streq(word, rlmap[i]))
|
|
return set_default_unit(rlmap[i+1]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_proc_cmdline(void) {
|
|
char *line;
|
|
int r;
|
|
char *w;
|
|
size_t l;
|
|
char *state;
|
|
|
|
if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
|
|
log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(errno));
|
|
return 0;
|
|
}
|
|
|
|
FOREACH_WORD_QUOTED(w, l, line, state) {
|
|
char *word;
|
|
|
|
if (!(word = strndup(w, l))) {
|
|
r = -ENOMEM;
|
|
goto finish;
|
|
}
|
|
|
|
r = parse_proc_cmdline_word(word);
|
|
free(word);
|
|
|
|
if (r < 0)
|
|
goto finish;
|
|
}
|
|
|
|
r = 0;
|
|
|
|
finish:
|
|
free(line);
|
|
return r;
|
|
}
|
|
|
|
static int parse_argv(int argc, char *argv[]) {
|
|
|
|
enum {
|
|
ARG_LOG_LEVEL = 0x100,
|
|
ARG_LOG_TARGET,
|
|
ARG_DEFAULT,
|
|
ARG_RUNNING_AS,
|
|
ARG_TEST,
|
|
ARG_DUMP_CONFIGURATION_ITEMS,
|
|
ARG_CONFIRM_SPAWN,
|
|
ARG_DESERIALIZE
|
|
};
|
|
|
|
static const struct option options[] = {
|
|
{ "log-level", required_argument, NULL, ARG_LOG_LEVEL },
|
|
{ "log-target", required_argument, NULL, ARG_LOG_TARGET },
|
|
{ "default", required_argument, NULL, ARG_DEFAULT },
|
|
{ "running-as", required_argument, NULL, ARG_RUNNING_AS },
|
|
{ "test", no_argument, NULL, ARG_TEST },
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{ "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
|
|
{ "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN },
|
|
{ "deserialize", required_argument, NULL, ARG_DESERIALIZE },
|
|
{ NULL, 0, NULL, 0 }
|
|
};
|
|
|
|
int c, r;
|
|
|
|
assert(argc >= 1);
|
|
assert(argv);
|
|
|
|
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
|
|
|
|
switch (c) {
|
|
|
|
case ARG_LOG_LEVEL:
|
|
if ((r = log_set_max_level_from_string(optarg)) < 0) {
|
|
log_error("Failed to parse log level %s.", optarg);
|
|
return r;
|
|
}
|
|
|
|
break;
|
|
|
|
case ARG_LOG_TARGET:
|
|
|
|
if ((r = log_set_target_from_string(optarg)) < 0) {
|
|
log_error("Failed to parse log target %s.", optarg);
|
|
return r;
|
|
}
|
|
|
|
break;
|
|
|
|
case ARG_DEFAULT:
|
|
|
|
if ((r = set_default_unit(optarg)) < 0) {
|
|
log_error("Failed to set default unit %s: %s", optarg, strerror(-r));
|
|
return r;
|
|
}
|
|
|
|
break;
|
|
|
|
case ARG_RUNNING_AS: {
|
|
ManagerRunningAs as;
|
|
|
|
if ((as = manager_running_as_from_string(optarg)) < 0) {
|
|
log_error("Failed to parse running as value %s", optarg);
|
|
return -EINVAL;
|
|
}
|
|
|
|
running_as = as;
|
|
break;
|
|
}
|
|
|
|
case ARG_TEST:
|
|
action = ACTION_TEST;
|
|
break;
|
|
|
|
case ARG_DUMP_CONFIGURATION_ITEMS:
|
|
action = ACTION_DUMP_CONFIGURATION_ITEMS;
|
|
break;
|
|
|
|
case ARG_CONFIRM_SPAWN:
|
|
confirm_spawn = true;
|
|
break;
|
|
|
|
case ARG_DESERIALIZE: {
|
|
int fd;
|
|
FILE *f;
|
|
|
|
if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) {
|
|
log_error("Failed to parse deserialize option %s.", optarg);
|
|
return r;
|
|
}
|
|
|
|
if (!(f = fdopen(fd, "r"))) {
|
|
log_error("Failed to open serialization fd: %m");
|
|
return r;
|
|
}
|
|
|
|
if (serialization)
|
|
fclose(serialization);
|
|
|
|
serialization = f;
|
|
|
|
break;
|
|
}
|
|
|
|
case 'h':
|
|
action = ACTION_HELP;
|
|
break;
|
|
|
|
case '?':
|
|
return -EINVAL;
|
|
|
|
default:
|
|
log_error("Unknown option code %c", c);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int help(void) {
|
|
|
|
printf("%s [options]\n\n"
|
|
" -h --help Show this help\n"
|
|
" --default=UNIT Set default unit\n"
|
|
" --log-level=LEVEL Set log level\n"
|
|
" --log-target=TARGET Set log target (console, syslog, kmsg)\n"
|
|
" --running-as=AS Set running as (init, system, session)\n"
|
|
" --test Determine startup sequence, dump it and exit\n"
|
|
" --dump-configuration-items Dump understood unit configuration items\n"
|
|
" --confirm-spawn Ask for confirmation when spawning processes\n",
|
|
__progname);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) {
|
|
FILE *f = NULL;
|
|
FDSet *fds = NULL;
|
|
int r;
|
|
|
|
assert(m);
|
|
assert(_f);
|
|
assert(_fds);
|
|
|
|
if ((r = manager_open_serialization(&f)) < 0) {
|
|
log_error("Failed to create serialization faile: %s", strerror(-r));
|
|
goto fail;
|
|
}
|
|
|
|
if (!(fds = fdset_new())) {
|
|
r = -ENOMEM;
|
|
log_error("Failed to allocate fd set: %s", strerror(-r));
|
|
goto fail;
|
|
}
|
|
|
|
if ((r = manager_serialize(m, f, fds)) < 0) {
|
|
log_error("Failed to serialize state: %s", strerror(-r));
|
|
goto fail;
|
|
}
|
|
|
|
if (fseeko(f, 0, SEEK_SET) < 0) {
|
|
log_error("Failed to rewind serialization fd: %m");
|
|
goto fail;
|
|
}
|
|
|
|
if ((r = fd_cloexec(fileno(f), false)) < 0) {
|
|
log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r));
|
|
goto fail;
|
|
}
|
|
|
|
if ((r = fdset_cloexec(fds, false)) < 0) {
|
|
log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r));
|
|
goto fail;
|
|
}
|
|
|
|
*_f = f;
|
|
*_fds = fds;
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
fdset_free(fds);
|
|
|
|
if (f)
|
|
fclose(f);
|
|
|
|
return r;
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
Manager *m = NULL;
|
|
Unit *target = NULL;
|
|
Job *job = NULL;
|
|
int r, retval = 1;
|
|
FDSet *fds = NULL;
|
|
bool reexecute = false;
|
|
|
|
if (getpid() == 1)
|
|
running_as = MANAGER_INIT;
|
|
else if (getuid() == 0)
|
|
running_as = MANAGER_SYSTEM;
|
|
else
|
|
running_as = MANAGER_SESSION;
|
|
|
|
if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0)
|
|
goto finish;
|
|
|
|
/* Mount /proc, /sys and friends, so that /proc/cmdline and
|
|
* /proc/$PID/fd is available. */
|
|
if (mount_setup() < 0)
|
|
goto finish;
|
|
|
|
/* Reset all signal handlers. */
|
|
assert_se(reset_all_signal_handlers() == 0);
|
|
|
|
/* If we are init, we can block sigkill. Yay. */
|
|
ignore_signal(SIGKILL);
|
|
ignore_signal(SIGPIPE);
|
|
|
|
if (running_as != MANAGER_SESSION)
|
|
if (parse_proc_cmdline() < 0)
|
|
goto finish;
|
|
|
|
log_parse_environment();
|
|
|
|
if (parse_argv(argc, argv) < 0)
|
|
goto finish;
|
|
|
|
if (action == ACTION_HELP) {
|
|
retval = help();
|
|
goto finish;
|
|
} else if (action == ACTION_DUMP_CONFIGURATION_ITEMS) {
|
|
unit_dump_config_items(stdout);
|
|
retval = 0;
|
|
goto finish;
|
|
}
|
|
|
|
assert_se(action == ACTION_RUN || action == ACTION_TEST);
|
|
|
|
/* Remember open file descriptors for later deserialization */
|
|
if (serialization) {
|
|
if ((r = fdset_new_fill(&fds)) < 0) {
|
|
log_error("Failed to allocate fd set: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
|
|
assert_se(fdset_remove(fds, fileno(serialization)) >= 0);
|
|
} else
|
|
close_all_fds(NULL, 0);
|
|
|
|
/* Set up PATH unless it is already set */
|
|
setenv("PATH",
|
|
"/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
|
|
running_as == MANAGER_INIT);
|
|
|
|
/* Move out of the way, so that we won't block unmounts */
|
|
assert_se(chdir("/") == 0);
|
|
|
|
if (running_as != MANAGER_SESSION) {
|
|
/* Become a session leader if we aren't one yet. */
|
|
setsid();
|
|
|
|
/* Disable the umask logic */
|
|
umask(0);
|
|
}
|
|
|
|
if (running_as == MANAGER_INIT)
|
|
console_setup();
|
|
|
|
/* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */
|
|
dbus_connection_set_change_sigpipe(FALSE);
|
|
|
|
/* Open the logging devices, if possible and necessary */
|
|
log_open_syslog();
|
|
log_open_kmsg();
|
|
|
|
/* Make sure we leave a core dump without panicing the
|
|
* kernel. */
|
|
if (getpid() == 1)
|
|
install_crash_handler();
|
|
|
|
log_debug("systemd running in %s mode.", manager_running_as_to_string(running_as));
|
|
|
|
if (running_as == MANAGER_INIT)
|
|
hostname_setup();
|
|
|
|
if ((r = manager_new(running_as, confirm_spawn, &m)) < 0) {
|
|
log_error("Failed to allocate manager object: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
|
|
if ((r = manager_startup(m, serialization, fds)) < 0)
|
|
log_error("Failed to fully startup daemon: %s", strerror(-r));
|
|
|
|
if (fds) {
|
|
/* This will close all file descriptors that were opened, but
|
|
* not claimed by any unit. */
|
|
|
|
fdset_free(fds);
|
|
fds = NULL;
|
|
}
|
|
|
|
if (serialization) {
|
|
fclose(serialization);
|
|
serialization = NULL;
|
|
} else {
|
|
log_debug("Activating default unit: %s", default_unit);
|
|
|
|
if ((r = manager_load_unit(m, default_unit, NULL, &target)) < 0) {
|
|
log_error("Failed to load default target: %s", strerror(-r));
|
|
|
|
log_info("Trying to load rescue target...");
|
|
if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &target)) < 0) {
|
|
log_error("Failed to load rescue target: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
}
|
|
|
|
if (action == ACTION_TEST) {
|
|
printf("→ By units:\n");
|
|
manager_dump_units(m, stdout, "\t");
|
|
}
|
|
|
|
if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &job)) < 0) {
|
|
log_error("Failed to start default target: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
|
|
if (action == ACTION_TEST) {
|
|
printf("→ By jobs:\n");
|
|
manager_dump_jobs(m, stdout, "\t");
|
|
retval = 0;
|
|
goto finish;
|
|
}
|
|
}
|
|
|
|
for (;;) {
|
|
if ((r = manager_loop(m)) < 0) {
|
|
log_error("Failed to run mainloop: %s", strerror(-r));
|
|
goto finish;
|
|
}
|
|
|
|
switch (m->exit_code) {
|
|
|
|
case MANAGER_EXIT:
|
|
retval = 0;
|
|
log_debug("Exit.");
|
|
goto finish;
|
|
|
|
case MANAGER_RELOAD:
|
|
if ((r = manager_reload(m)) < 0)
|
|
log_error("Failed to reload: %s", strerror(-r));
|
|
break;
|
|
|
|
case MANAGER_REEXECUTE:
|
|
|
|
if (prepare_reexecute(m, &serialization, &fds) < 0)
|
|
goto finish;
|
|
|
|
reexecute = true;
|
|
log_debug("Reexecuting.");
|
|
goto finish;
|
|
|
|
default:
|
|
assert_not_reached("Unknown exit code.");
|
|
}
|
|
}
|
|
|
|
finish:
|
|
if (m)
|
|
manager_free(m);
|
|
|
|
free(default_unit);
|
|
|
|
dbus_shutdown();
|
|
|
|
if (reexecute) {
|
|
const char *args[11];
|
|
unsigned i = 0;
|
|
char sfd[16];
|
|
|
|
assert(serialization);
|
|
assert(fds);
|
|
|
|
args[i++] = SYSTEMD_BINARY_PATH;
|
|
|
|
args[i++] = "--log-level";
|
|
args[i++] = log_level_to_string(log_get_max_level());
|
|
|
|
args[i++] = "--log-target";
|
|
args[i++] = log_target_to_string(log_get_target());
|
|
|
|
args[i++] = "--running-as";
|
|
args[i++] = manager_running_as_to_string(running_as);
|
|
|
|
snprintf(sfd, sizeof(sfd), "%i", fileno(serialization));
|
|
char_array_0(sfd);
|
|
|
|
args[i++] = "--deserialize";
|
|
args[i++] = sfd;
|
|
|
|
if (confirm_spawn)
|
|
args[i++] = "--confirm-spawn";
|
|
|
|
args[i++] = NULL;
|
|
|
|
assert(i <= ELEMENTSOF(args));
|
|
|
|
execv(args[0], (char* const*) args);
|
|
|
|
log_error("Failed to reexecute: %m");
|
|
}
|
|
|
|
if (serialization)
|
|
fclose(serialization);
|
|
|
|
if (fds)
|
|
fdset_free(fds);
|
|
|
|
if (getpid() == 1)
|
|
freeze();
|
|
|
|
return retval;
|
|
}
|