-/*-*- Mode: C; c-basic-offset: 8 -*-*/
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
#include <signal.h>
#include <sys/wait.h>
#include <fcntl.h>
+#include <sys/prctl.h>
#include "manager.h"
#include "log.h"
#include "hostname-setup.h"
#include "loopback-setup.h"
#include "kmod-setup.h"
+#include "locale-setup.h"
+#include "selinux-setup.h"
#include "load-fragment.h"
#include "fdset.h"
#include "special.h"
+#include "conf-parser.h"
+#include "bus-errors.h"
+#include "missing.h"
+#include "label.h"
+#include "build.h"
+#include "strv.h"
static enum {
ACTION_RUN,
ACTION_TEST,
ACTION_DUMP_CONFIGURATION_ITEMS,
ACTION_DONE
-} action = ACTION_RUN;
+} arg_action = ACTION_RUN;
+
+static char *arg_default_unit = NULL;
+static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID;
+
+static bool arg_dump_core = true;
+static bool arg_crash_shell = false;
+static int arg_crash_chvt = -1;
+static bool arg_confirm_spawn = false;
+static bool arg_show_status = true;
+#ifdef HAVE_SYSV_COMPAT
+static bool arg_sysv_console = true;
+#endif
+static bool arg_mount_auto = true;
+static bool arg_swap_auto = true;
+static char **arg_default_controllers = NULL;
+static ExecOutput arg_default_std_output = EXEC_OUTPUT_INHERIT;
+static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT;
-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));
+ if (!arg_dump_core)
+ log_error("Caught <%s>, not dumping core.", signal_to_string(sig));
else {
struct sigaction sa;
pid_t pid;
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));
+ log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno));
else if (pid == 0) {
struct rlimit rl;
_exit(1);
} else {
- int status, r;
+ siginfo_t status;
+ int 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));
+ if ((r = wait_for_terminate(pid, &status)) < 0)
+ log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r));
+ else if (status.si_code != CLD_DUMPED)
+ log_error("Caught <%s>, core dump failed.", signal_to_string(sig));
else
- log_error("Caught <%s>, dumped core as pid %llu.", strsignal(sig), (unsigned long long) pid);
+ log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid);
}
}
- if (crash_chvt)
- chvt(crash_chvt);
+ if (arg_crash_chvt)
+ chvt(arg_crash_chvt);
- if (crash_shell) {
+ if (arg_crash_shell) {
struct sigaction sa;
pid_t pid;
_exit(1);
}
- log_info("Successfully spawned crash shall as pid %llu.", (unsigned long long) pid);
+ log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid);
}
log_info("Freezing execution.");
sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1);
}
-static int make_null_stdio(void) {
- int null_fd, r;
-
- if ((null_fd = open("/dev/null", O_RDWR|O_NOCTTY)) < 0) {
- log_error("Failed to open /dev/null: %m");
- return -errno;
- }
-
- if ((r = make_stdio(null_fd)) < 0)
- log_warning("Failed to dup2() device: %s", strerror(-r));
-
- return r;
-}
-
static int console_setup(bool do_reset) {
int tty_fd, r;
if (!(c = strdup(u)))
return -ENOMEM;
- free(default_unit);
- default_unit = c;
+ free(arg_default_unit);
+ arg_default_unit = c;
return 0;
}
static int parse_proc_cmdline_word(const char *word) {
static const char * const rlmap[] = {
- "single", SPECIAL_RESCUE_TARGET,
- "-s", SPECIAL_RESCUE_TARGET,
- "s", SPECIAL_RESCUE_TARGET,
- "S", SPECIAL_RESCUE_TARGET,
- "1", SPECIAL_RESCUE_TARGET,
- "2", SPECIAL_RUNLEVEL2_TARGET,
- "3", SPECIAL_RUNLEVEL3_TARGET,
- "4", SPECIAL_RUNLEVEL4_TARGET,
- "5", SPECIAL_RUNLEVEL5_TARGET
+ "emergency", SPECIAL_EMERGENCY_TARGET,
+ "single", SPECIAL_RESCUE_TARGET,
+ "-s", SPECIAL_RESCUE_TARGET,
+ "s", SPECIAL_RESCUE_TARGET,
+ "S", SPECIAL_RESCUE_TARGET,
+ "1", SPECIAL_RESCUE_TARGET,
+ "2", SPECIAL_RUNLEVEL2_TARGET,
+ "3", SPECIAL_RUNLEVEL3_TARGET,
+ "4", SPECIAL_RUNLEVEL4_TARGET,
+ "5", SPECIAL_RUNLEVEL5_TARGET,
};
+ assert(word);
+
if (startswith(word, "systemd.unit="))
return set_default_unit(word + 13);
if ((r = parse_boolean(word + 18)) < 0)
log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18);
else
- dump_core = r;
+ arg_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;
-
+ arg_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;
+ arg_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;
+ arg_crash_chvt = k;
+
+ } else if (startswith(word, "systemd.show_status=")) {
+ int r;
+
+ if ((r = parse_boolean(word + 20)) < 0)
+ log_warning("Failed to parse show status switch %s, Ignoring.", word + 20);
+ else
+ arg_show_status = r;
+ } else if (startswith(word, "systemd.default_standard_output=")) {
+ int r;
+
+ if ((r = exec_output_from_string(word + 32)) < 0)
+ log_warning("Failed to parse default standard output switch %s, Ignoring.", word + 32);
+ else
+ arg_default_std_output = r;
+ } else if (startswith(word, "systemd.default_standard_error=")) {
+ int r;
+
+ if ((r = exec_output_from_string(word + 31)) < 0)
+ log_warning("Failed to parse default standard error switch %s, Ignoring.", word + 31);
+ else
+ arg_default_std_error = r;
+#ifdef HAVE_SYSV_COMPAT
+ } else if (startswith(word, "systemd.sysv_console=")) {
+ int r;
+
+ if ((r = parse_boolean(word + 21)) < 0)
+ log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20);
+ else
+ arg_sysv_console = r;
+#endif
} else if (startswith(word, "systemd.")) {
log_info("Supported kernel switches:\n"
"systemd.unit=UNIT Default unit to start\n"
- "systemd.log_target=console|kmsg|syslog| Log target\n"
- " syslog-org-kmsg|null\n"
+ "systemd.dump_core=0|1 Dump core on crash\n"
+ "systemd.crash_shell=0|1 Run shell on crash\n"
+ "systemd.crash_chvt=N Change to VT #N on crash\n"
+ "systemd.confirm_spawn=0|1 Confirm every process spawn\n"
+ "systemd.show_status=0|1 Show status updates on the console during bootup\n"
+#ifdef HAVE_SYSV_COMPAT
+ "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n"
+#endif
+ "systemd.log_target=console|kmsg|syslog|syslog-or-kmsg|null\n"
+ " Log target\n"
"systemd.log_level=LEVEL Log level\n"
"systemd.log_color=0|1 Highlight important log messages\n"
"systemd.log_location=0|1 Include code location in log messages\n"
- "systemd.dump_core=0|1 Dump core on crash\n"
- "systemd.crash_shell=0|1 On crash run shell\n"
- "systemd.crash_chvt=N Change to VT #N on crash\n"
- "systemd.confirm_spawn=0|1 Confirm every process spawn");
-
+ "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console\n"
+ " Set default log output for services\n"
+ "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console\n"
+ " Set default log error output for services\n");
+
+ } else if (streq(word, "quiet")) {
+ arg_show_status = false;
+#ifdef HAVE_SYSV_COMPAT
+ arg_sysv_console = false;
+#endif
} else {
unsigned i;
return 0;
}
-static int parse_proc_cmdline(void) {
- char *line;
- int r;
+static int config_parse_level(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ log_set_max_level_from_string(rvalue);
+ return 0;
+}
+
+static int config_parse_target(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ log_set_target_from_string(rvalue);
+ return 0;
+}
+
+static int config_parse_color(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ log_show_color_from_string(rvalue);
+ return 0;
+}
+
+static int config_parse_location(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ log_show_location_from_string(rvalue);
+ return 0;
+}
+
+static int config_parse_cpu_affinity(
+ const char *filename,
+ unsigned line,
+ const char *section,
+ const char *lvalue,
+ const char *rvalue,
+ void *data,
+ void *userdata) {
+
char *w;
size_t l;
char *state;
+ cpu_set_t *c = NULL;
+ unsigned ncpus = 0;
+
+ assert(filename);
+ assert(lvalue);
+ assert(rvalue);
+
+ FOREACH_WORD_QUOTED(w, l, rvalue, state) {
+ char *t;
+ int r;
+ unsigned cpu;
+
+ if (!(t = strndup(w, l)))
+ return -ENOMEM;
+
+ r = safe_atou(t, &cpu);
+ free(t);
+
+ if (!c)
+ if (!(c = cpu_set_malloc(&ncpus)))
+ return -ENOMEM;
+
+ if (r < 0 || cpu >= ncpus) {
+ log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue);
+ CPU_FREE(c);
+ return -EBADMSG;
+ }
+
+ CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c);
+ }
+
+ if (c) {
+ if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
+ log_warning("Failed to set CPU affinity: %m");
+
+ CPU_FREE(c);
+ }
+
+ return 0;
+}
+
+static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
+
+static int parse_config_file(void) {
+
+ const ConfigItem items[] = {
+ { "LogLevel", config_parse_level, NULL, "Manager" },
+ { "LogTarget", config_parse_target, NULL, "Manager" },
+ { "LogColor", config_parse_color, NULL, "Manager" },
+ { "LogLocation", config_parse_location, NULL, "Manager" },
+ { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" },
+ { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" },
+ { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" },
+#ifdef HAVE_SYSV_COMPAT
+ { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" },
+#endif
+ { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" },
+ { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" },
+ { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" },
+ { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" },
+ { "DefaultControllers", config_parse_strv, &arg_default_controllers, "Manager" },
+ { "DefaultStandardOutput", config_parse_output, &arg_default_std_output, "Manager" },
+ { "DefaultStandardError", config_parse_output, &arg_default_std_error, "Manager" },
+ { NULL, NULL, NULL, NULL }
+ };
+
+ static const char * const sections[] = {
+ "Manager",
+ NULL
+ };
+
+ FILE *f;
+ const char *fn;
+ int r;
+
+ fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE;
+
+ if (!(f = fopen(fn, "re"))) {
+ if (errno == ENOENT)
+ return 0;
+
+ log_warning("Failed to open configuration file '%s': %m", fn);
+ return 0;
+ }
+
+ if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0)
+ log_warning("Failed to parse configuration file: %s", strerror(-r));
+
+ fclose(f);
+
+ return 0;
+}
+
+static int parse_proc_cmdline(void) {
+ char *line, *w, *state;
+ int r;
+ size_t l;
if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
- log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(errno));
+ log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
return 0;
}
ARG_LOG_COLOR,
ARG_LOG_LOCATION,
ARG_UNIT,
- ARG_RUNNING_AS,
+ ARG_SYSTEM,
+ ARG_USER,
ARG_TEST,
ARG_DUMP_CONFIGURATION_ITEMS,
+ ARG_DUMP_CORE,
+ ARG_CRASH_SHELL,
ARG_CONFIRM_SPAWN,
+ ARG_SHOW_STATUS,
+ ARG_SYSV_CONSOLE,
ARG_DESERIALIZE,
- ARG_INTROSPECT
+ ARG_INTROSPECT,
+ ARG_DEFAULT_STD_OUTPUT,
+ ARG_DEFAULT_STD_ERROR
};
static const struct option options[] = {
{ "log-color", optional_argument, NULL, ARG_LOG_COLOR },
{ "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
{ "unit", required_argument, NULL, ARG_UNIT },
- { "running-as", required_argument, NULL, ARG_RUNNING_AS },
+ { "system", no_argument, NULL, ARG_SYSTEM },
+ { "user", no_argument, NULL, ARG_USER },
{ "test", no_argument, NULL, ARG_TEST },
{ "help", no_argument, NULL, 'h' },
{ "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
+ { "dump-core", no_argument, NULL, ARG_DUMP_CORE },
+ { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL },
{ "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN },
+ { "show-status", optional_argument, NULL, ARG_SHOW_STATUS },
+#ifdef HAVE_SYSV_COMPAT
+ { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE },
+#endif
{ "deserialize", required_argument, NULL, ARG_DESERIALIZE },
{ "introspect", optional_argument, NULL, ARG_INTROSPECT },
+ { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, },
+ { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, },
{ NULL, 0, NULL, 0 }
};
assert(argc >= 1);
assert(argv);
- while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
+ while ((c = getopt_long(argc, argv, "hD", options, NULL)) >= 0)
switch (c) {
case ARG_LOG_COLOR:
- if ((r = log_show_color_from_string(optarg)) < 0) {
- log_error("Failed to parse log color setting %s.", optarg);
- return r;
- }
+ if (optarg) {
+ if ((r = log_show_color_from_string(optarg)) < 0) {
+ log_error("Failed to parse log color setting %s.", optarg);
+ return r;
+ }
+ } else
+ log_show_color(true);
break;
case ARG_LOG_LOCATION:
- if ((r = log_show_location_from_string(optarg)) < 0) {
- log_error("Failed to parse log location setting %s.", optarg);
+ if (optarg) {
+ if ((r = log_show_location_from_string(optarg)) < 0) {
+ log_error("Failed to parse log location setting %s.", optarg);
+ return r;
+ }
+ } else
+ log_show_location(true);
+
+ break;
+
+ case ARG_DEFAULT_STD_OUTPUT:
+
+ if ((r = exec_output_from_string(optarg)) < 0) {
+ log_error("Failed to parse default standard output setting %s.", optarg);
return r;
- }
+ } else
+ arg_default_std_output = r;
+ break;
+ case ARG_DEFAULT_STD_ERROR:
+
+ if ((r = exec_output_from_string(optarg)) < 0) {
+ log_error("Failed to parse default standard error output setting %s.", optarg);
+ return r;
+ } else
+ arg_default_std_error = r;
break;
case ARG_UNIT:
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;
- }
+ case ARG_SYSTEM:
+ arg_running_as = MANAGER_SYSTEM;
+ break;
- running_as = as;
+ case ARG_USER:
+ arg_running_as = MANAGER_USER;
break;
- }
case ARG_TEST:
- action = ACTION_TEST;
+ arg_action = ACTION_TEST;
break;
case ARG_DUMP_CONFIGURATION_ITEMS:
- action = ACTION_DUMP_CONFIGURATION_ITEMS;
+ arg_action = ACTION_DUMP_CONFIGURATION_ITEMS;
+ break;
+
+ case ARG_DUMP_CORE:
+ arg_dump_core = true;
+ break;
+
+ case ARG_CRASH_SHELL:
+ arg_crash_shell = true;
break;
case ARG_CONFIRM_SPAWN:
- confirm_spawn = true;
+ arg_confirm_spawn = true;
break;
+ case ARG_SHOW_STATUS:
+
+ if (optarg) {
+ if ((r = parse_boolean(optarg)) < 0) {
+ log_error("Failed to show status boolean %s.", optarg);
+ return r;
+ }
+ arg_show_status = r;
+ } else
+ arg_show_status = true;
+ break;
+#ifdef HAVE_SYSV_COMPAT
+ case ARG_SYSV_CONSOLE:
+
+ if (optarg) {
+ if ((r = parse_boolean(optarg)) < 0) {
+ log_error("Failed to SysV console boolean %s.", optarg);
+ return r;
+ }
+ arg_sysv_console = r;
+ } else
+ arg_sysv_console = true;
+ break;
+#endif
+
case ARG_DESERIALIZE: {
int fd;
FILE *f;
if (!i[0] && optarg)
log_error("Unknown interface %s.", optarg);
- action = ACTION_DONE;
+ arg_action = ACTION_DONE;
break;
}
case 'h':
- action = ACTION_HELP;
+ arg_action = ACTION_HELP;
+ break;
+
+ case 'D':
+ log_set_max_level(LOG_DEBUG);
break;
case '?':
* ignore and unconditionally read from
* /proc/cmdline. However, we need to ignore those arguments
* here. */
- if (running_as != MANAGER_INIT && optind < argc) {
+ if (arg_running_as != MANAGER_SYSTEM && optind < argc) {
log_error("Excess arguments.");
return -EINVAL;
}
static int help(void) {
- printf("%s [options]\n\n"
- "Starts up and maintains the system or a session.\n\n"
+ printf("%s [OPTIONS...]\n\n"
+ "Starts up and maintains the system or user services.\n\n"
" -h --help Show this help\n"
- " --unit=UNIT Set default unit\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"
" --introspect[=INTERFACE] Extract D-Bus interface data\n"
- " --log-level=LEVEL Set log level\n"
+ " --unit=UNIT Set default unit\n"
+ " --system Run a system instance, even if PID != 1\n"
+ " --user Run a user instance\n"
+ " --dump-core Dump core on crash\n"
+ " --crash-shell Run shell on crash\n"
+ " --confirm-spawn Ask for confirmation when spawning processes\n"
+ " --show-status[=0|1] Show status updates on the console during bootup\n"
+#ifdef HAVE_SYSV_COMPAT
+ " --sysv-console[=0|1] Connect output of SysV scripts to console\n"
+#endif
" --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n"
- " --log-color[=0|1] Highlight import log messages\n"
- " --log-location[=0|1] Include code location in log messages\n",
+ " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
+ " --log-color[=0|1] Highlight important log messages\n"
+ " --log-location[=0|1] Include code location in log messages\n"
+ " --default-standard-output= Set default standard output for services\n"
+ " --default-standard-error= Set default standard error output for services\n",
program_invocation_short_name);
return 0;
assert(_f);
assert(_fds);
- if ((r = manager_open_serialization(&f)) < 0) {
- log_error("Failed to create serialization faile: %s", strerror(-r));
+ if ((r = manager_open_serialization(m, &f)) < 0) {
+ log_error("Failed to create serialization file: %s", strerror(-r));
goto fail;
}
return r;
}
+static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) {
+ const char *e;
+ unsigned long long a, b;
+
+ assert(t);
+
+ if (!(e = getenv("RD_TIMESTAMP")))
+ return NULL;
+
+ if (sscanf(e, "%llu %llu", &a, &b) != 2)
+ return NULL;
+
+ t->realtime = (usec_t) a;
+ t->monotonic = (usec_t) b;
+
+ return t;
+}
+
+static void test_mtab(void) {
+ char *p;
+
+ /* Check that /etc/mtab is a symlink */
+
+ if (readlink_malloc("/etc/mtab", &p) >= 0) {
+ bool b;
+
+ b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts");
+ free(p);
+
+ if (b)
+ return;
+ }
+
+ log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. "
+ "This is not supported anymore. "
+ "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output.");
+}
+
+static void test_usr(void) {
+ struct stat a, b;
+ bool separate = false;
+
+ /* Check that /usr is not a separate fs */
+
+ if (lstat("/", &a) >= 0 && lstat("/usr", &b) >= 0)
+ if (a.st_dev != b.st_dev)
+ separate = true;
+
+ /* This check won't work usually during boot, since /usr is
+ * probably not mounted yet, hence let's add a second
+ * check. We just check whether /usr is an empty directory. */
+
+ if (dir_is_empty("/usr") > 0)
+ separate = true;
+
+ if (!separate)
+ return;
+
+ log_warning("/usr appears to be on a different file system than /. This is not supported anymore. "
+ "Some things will probably break (sometimes even silently) in mysterious ways. "
+ "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information.");
+}
+
int main(int argc, char *argv[]) {
Manager *m = NULL;
- Unit *target = NULL;
- Job *job = NULL;
- int r, retval = 1;
+ int r, retval = EXIT_FAILURE;
FDSet *fds = NULL;
bool reexecute = false;
+ const char *shutdown_verb = NULL;
+ dual_timestamp initrd_timestamp = { 0ULL, 0ULL };
+ char systemd[] = "systemd";
+
+ if (getpid() != 1 && strstr(program_invocation_short_name, "init")) {
+ /* This is compatibility support for SysV, where
+ * calling init as a user is identical to telinit. */
+
+ errno = -ENOENT;
+ execv(SYSTEMCTL_BINARY_PATH, argv);
+ log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m");
+ return 1;
+ }
- log_show_color(true);
+ /* If we get started via the /sbin/init symlink then we are
+ called 'init'. After a subsequent reexecution we are then
+ called 'systemd'. That is confusing, hence let's call us
+ systemd right-away. */
+
+ program_invocation_short_name = systemd;
+ prctl(PR_SET_NAME, systemd);
+
+ log_show_color(isatty(STDERR_FILENO) > 0);
log_show_location(false);
- log_set_max_level(LOG_DEBUG);
+ log_set_max_level(LOG_INFO);
if (getpid() == 1) {
- running_as = MANAGER_INIT;
+ arg_running_as = MANAGER_SYSTEM;
log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
+
+ /* This might actually not return, but cause a
+ * reexecution */
+ if (selinux_setup(argv) < 0)
+ goto finish;
+
+ if (label_init() < 0)
+ goto finish;
} else {
- running_as = MANAGER_SESSION;
+ arg_running_as = MANAGER_USER;
log_set_target(LOG_TARGET_CONSOLE);
}
/* Mount /proc, /sys and friends, so that /proc/cmdline and
* /proc/$PID/fd is available. */
- if (geteuid() == 0)
+ if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS"))
if (mount_setup() < 0)
goto finish;
/* If we are init, we can block sigkill. Yay. */
ignore_signals(SIGNALS_IGNORE, -1);
- if (running_as != MANAGER_SESSION)
+ if (parse_config_file() < 0)
+ goto finish;
+
+ if (arg_running_as == MANAGER_SYSTEM)
if (parse_proc_cmdline() < 0)
goto finish;
if (parse_argv(argc, argv) < 0)
goto finish;
- if (action == ACTION_HELP) {
+ if (arg_action == ACTION_TEST && geteuid() == 0) {
+ log_error("Don't run test mode as root.");
+ goto finish;
+ }
+
+ /* If Plymouth is being run make sure we show the status, so
+ * that there's something nice to see when people press Esc */
+ if (access("/dev/.systemd/plymouth", F_OK) >= 0)
+ arg_show_status = true;
+
+ if (arg_action == ACTION_HELP) {
retval = help();
goto finish;
- } else if (action == ACTION_DUMP_CONFIGURATION_ITEMS) {
+ } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
unit_dump_config_items(stdout);
- retval = 0;
+ retval = EXIT_SUCCESS;
goto finish;
- } else if (action == ACTION_DONE) {
- retval = 0;
+ } else if (arg_action == ACTION_DONE) {
+ retval = EXIT_SUCCESS;
goto finish;
}
- assert_se(action == ACTION_RUN || action == ACTION_TEST);
+ assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST);
/* Remember open file descriptors for later deserialization */
if (serialization) {
/* 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);
+ arg_running_as == MANAGER_SYSTEM);
+
+ if (arg_running_as == MANAGER_SYSTEM) {
+ /* Parse the data passed to us by the initrd and unset it */
+ parse_initrd_timestamp(&initrd_timestamp);
+ filter_environ("RD_");
+
+ /* Unset some environment variables passed in from the
+ * kernel that don't really make sense for us. */
+ unsetenv("HOME");
+ unsetenv("TERM");
+ }
/* Move out of the way, so that we won't block unmounts */
assert_se(chdir("/") == 0);
- if (running_as != MANAGER_SESSION) {
+ if (arg_running_as == MANAGER_SYSTEM) {
/* Become a session leader if we aren't one yet. */
setsid();
/* Reset the console, but only if this is really init and we
* are freshly booted */
- if (running_as != MANAGER_SESSION && action == ACTION_RUN) {
+ if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) {
console_setup(getpid() == 1 && !serialization);
make_null_stdio();
}
if (getpid() == 1)
install_crash_handler();
- log_debug("systemd running in %s mode.", manager_running_as_to_string(running_as));
+ log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG,
+ PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as));
+
+ if (arg_running_as == MANAGER_SYSTEM && !serialization) {
+ locale_setup();
+
+ if (arg_show_status)
+ status_welcome();
- if (running_as == MANAGER_INIT) {
kmod_setup();
hostname_setup();
loopback_setup();
+
+ mkdir_p("/dev/.systemd/ask-password/", 0755);
+
+ test_mtab();
+ test_usr();
}
- if ((r = manager_new(running_as, confirm_spawn, &m)) < 0) {
+ if ((r = manager_new(arg_running_as, &m)) < 0) {
log_error("Failed to allocate manager object: %s", strerror(-r));
goto finish;
}
+ m->confirm_spawn = arg_confirm_spawn;
+ m->show_status = arg_show_status;
+#ifdef HAVE_SYSV_COMPAT
+ m->sysv_console = arg_sysv_console;
+#endif
+ m->mount_auto = arg_mount_auto;
+ m->swap_auto = arg_swap_auto;
+ m->default_std_output = arg_default_std_output;
+ m->default_std_error = arg_default_std_error;
+
+ if (dual_timestamp_is_set(&initrd_timestamp))
+ m->initrd_timestamp = initrd_timestamp;
+
+ if (arg_default_controllers)
+ manager_set_default_controllers(m, arg_default_controllers);
+
if ((r = manager_startup(m, serialization, fds)) < 0)
log_error("Failed to fully start up daemon: %s", strerror(-r));
fclose(serialization);
serialization = NULL;
} else {
- log_debug("Activating default unit: %s", default_unit);
+ DBusError error;
+ Unit *target = NULL;
+
+ dbus_error_init(&error);
+
+ log_debug("Activating default unit: %s", arg_default_unit);
- if ((r = manager_load_unit(m, default_unit, NULL, &target)) < 0) {
- log_error("Failed to load default target: %s", strerror(-r));
+ if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) {
+ log_error("Failed to load default target: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ } else if (target->meta.load_state == UNIT_ERROR)
+ log_error("Failed to load default target: %s", strerror(-target->meta.load_error));
+ else if (target->meta.load_state == UNIT_MASKED)
+ log_error("Default target masked.");
+ if (!target || target->meta.load_state != UNIT_LOADED) {
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));
+
+ if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) {
+ log_error("Failed to load rescue target: %s", bus_error(&error, r));
+ dbus_error_free(&error);
+ goto finish;
+ } else if (target->meta.load_state == UNIT_ERROR) {
+ log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error));
+ goto finish;
+ } else if (target->meta.load_state == UNIT_MASKED) {
+ log_error("Rescue target masked.");
goto finish;
}
}
- if (action == ACTION_TEST) {
+ assert(target->meta.load_state == UNIT_LOADED);
+
+ if (arg_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));
+ if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, NULL)) < 0) {
+ log_error("Failed to start default target: %s", bus_error(&error, r));
+ dbus_error_free(&error);
goto finish;
}
- if (action == ACTION_TEST) {
+ if (arg_action == ACTION_TEST) {
printf("-> By jobs:\n");
manager_dump_jobs(m, stdout, "\t");
- retval = 0;
+ retval = EXIT_SUCCESS;
goto finish;
}
}
switch (m->exit_code) {
case MANAGER_EXIT:
- retval = 0;
+ retval = EXIT_SUCCESS;
log_debug("Exit.");
goto finish;
case MANAGER_RELOAD:
+ log_info("Reloading.");
if ((r = manager_reload(m)) < 0)
log_error("Failed to reload: %s", strerror(-r));
break;
goto finish;
reexecute = true;
- log_debug("Reexecuting.");
+ log_notice("Reexecuting.");
+ goto finish;
+
+ case MANAGER_REBOOT:
+ case MANAGER_POWEROFF:
+ case MANAGER_HALT:
+ case MANAGER_KEXEC: {
+ static const char * const table[_MANAGER_EXIT_CODE_MAX] = {
+ [MANAGER_REBOOT] = "reboot",
+ [MANAGER_POWEROFF] = "poweroff",
+ [MANAGER_HALT] = "halt",
+ [MANAGER_KEXEC] = "kexec"
+ };
+
+ assert_se(shutdown_verb = table[m->exit_code]);
+
+ log_notice("Shutting down.");
goto finish;
+ }
default:
assert_not_reached("Unknown exit code.");
if (m)
manager_free(m);
- free(default_unit);
+ free(arg_default_unit);
+ strv_free(arg_default_controllers);
dbus_shutdown();
+ label_finish();
+
if (reexecute) {
- const char *args[11];
+ const char *args[15];
unsigned i = 0;
char sfd[16];
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);
+ if (arg_running_as == MANAGER_SYSTEM)
+ args[i++] = "--system";
+ else
+ args[i++] = "--user";
+
+ if (arg_dump_core)
+ args[i++] = "--dump-core";
+
+ if (arg_crash_shell)
+ args[i++] = "--crash-shell";
+
+ if (arg_confirm_spawn)
+ args[i++] = "--confirm-spawn";
+
+ if (arg_show_status)
+ args[i++] = "--show-status=1";
+ else
+ args[i++] = "--show-status=0";
+
+#ifdef HAVE_SYSV_COMPAT
+ if (arg_sysv_console)
+ args[i++] = "--sysv-console=1";
+ else
+ args[i++] = "--sysv-console=0";
+#endif
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));
if (fds)
fdset_free(fds);
+ if (shutdown_verb) {
+ const char * command_line[] = {
+ SYSTEMD_SHUTDOWN_BINARY_PATH,
+ shutdown_verb,
+ NULL
+ };
+
+ execv(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line);
+ log_error("Failed to execute shutdown binary, freezing: %m");
+ }
+
if (getpid() == 1)
freeze();
~ianmdlvl / elogind.git / blobdiff