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Diffstat (limited to 'src/systemctl.c')
-rw-r--r--src/systemctl.c221
1 files changed, 160 insertions, 61 deletions
diff --git a/src/systemctl.c b/src/systemctl.c
index aad9ba039b..a41d7ea8bd 100644
--- a/src/systemctl.c
+++ b/src/systemctl.c
@@ -36,6 +36,7 @@
#include "macro.h"
#include "set.h"
#include "utmp-wtmp.h"
+#include "special.h"
static const char *arg_type = NULL;
static bool arg_all = false;
@@ -45,6 +46,7 @@ static bool arg_block = false;
static bool arg_immediate = false;
static bool arg_no_wtmp = false;
static bool arg_no_sync = false;
+static bool arg_no_wall = false;
static bool arg_dry = false;
static char **arg_wall = NULL;
enum action {
@@ -58,6 +60,8 @@ enum action {
ACTION_RUNLEVEL4,
ACTION_RUNLEVEL5,
ACTION_RESCUE,
+ ACTION_EMERGENCY,
+ ACTION_DEFAULT,
ACTION_RELOAD,
ACTION_REEXEC,
ACTION_RUNLEVEL,
@@ -66,6 +70,8 @@ enum action {
static bool error_is_no_service(DBusError *error) {
+ assert(error);
+
if (!dbus_error_is_set(error))
return false;
@@ -80,6 +86,9 @@ static bool error_is_no_service(DBusError *error) {
static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) {
+ assert(iter);
+ assert(data);
+
if (dbus_message_iter_get_arg_type(iter) != type)
return -EIO;
@@ -116,18 +125,22 @@ static int columns(void) {
}
-static void warn_wall(void) {
+static void warn_wall(enum action action) {
static const char *table[_ACTION_MAX] = {
- [ACTION_HALT] = "The system is going down for system halt NOW!",
- [ACTION_REBOOT] = "The system is going down for reboot NOW!",
- [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
- [ACTION_RESCUE] = "The system is going down to rescue mode NOW!"
+ [ACTION_HALT] = "The system is going down for system halt NOW!",
+ [ACTION_REBOOT] = "The system is going down for reboot NOW!",
+ [ACTION_POWEROFF] = "The system is going down for power-off NOW!",
+ [ACTION_RESCUE] = "The system is going down to rescue mode NOW!",
+ [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
};
- if (!table[arg_action])
+ if (arg_no_wall)
+ return;
+
+ if (!table[action])
return;
- utmp_wall(table[arg_action]);
+ utmp_wall(table[action]);
}
static int list_units(DBusConnection *bus, char **args, unsigned n) {
@@ -139,6 +152,8 @@ static int list_units(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ assert(bus);
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
@@ -247,6 +262,8 @@ static int list_jobs(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ assert(bus);
+
if (!(m = dbus_message_new_method_call(
"org.freedesktop.systemd1",
"/org/freedesktop/systemd1",
@@ -326,6 +343,9 @@ static int load_unit(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ assert(bus);
+ assert(args);
+
for (i = 1; i < n; i++) {
if (!(m = dbus_message_new_method_call(
@@ -380,6 +400,9 @@ static int cancel_job(DBusConnection *bus, char **args, unsigned n) {
dbus_error_init(&error);
+ assert(bus);
+ assert(args);
+
for (i = 1; i < n; i++) {
unsigned id;
const char *path;
@@ -669,72 +692,100 @@ finish:
return r;
}
+static enum action verb_to_action(const char *verb) {
+ if (streq(verb, "halt"))
+ return ACTION_HALT;
+ else if (streq(verb, "poweroff"))
+ return ACTION_POWEROFF;
+ else if (streq(verb, "reboot"))
+ return ACTION_REBOOT;
+ else if (streq(verb, "rescue"))
+ return ACTION_RESCUE;
+ else if (streq(verb, "emergency"))
+ return ACTION_EMERGENCY;
+ else if (streq(verb, "default"))
+ return ACTION_DEFAULT;
+ else
+ return ACTION_INVALID;
+}
+
static int start_unit(DBusConnection *bus, char **args, unsigned n) {
static const char * const table[_ACTION_MAX] = {
- [ACTION_HALT] = "halt.target",
- [ACTION_POWEROFF] = "poweroff.target",
- [ACTION_REBOOT] = "reboot.target",
- [ACTION_RUNLEVEL2] = "runlevel2.target",
- [ACTION_RUNLEVEL3] = "runlevel3.target",
- [ACTION_RUNLEVEL4] = "runlevel4.target",
- [ACTION_RUNLEVEL5] = "runlevel5.target",
- [ACTION_RESCUE] = "rescue.target"
+ [ACTION_HALT] = SPECIAL_HALT_TARGET,
+ [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
+ [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
+ [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
+ [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
+ [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
+ [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
+ [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
+ [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_SERVICE,
+ [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET
};
int r;
unsigned i;
- const char *method, *mode;
+ const char *method, *mode, *one_name;
Set *s = NULL;
+ assert(bus);
+
if (arg_action == ACTION_SYSTEMCTL) {
method =
- streq(args[0], "start") ? "StartUnit" :
streq(args[0], "stop") ? "StopUnit" :
streq(args[0], "reload") ? "ReloadUnit" :
streq(args[0], "restart") ? "RestartUnit" :
- /* isolate */ "StartUnit";
+ "StartUnit";
mode =
- streq(args[0], "isolate") ? "isolate" :
- arg_replace ? "replace" :
- "fail";
+ (streq(args[0], "isolate") ||
+ streq(args[0], "rescue") ||
+ streq(args[0], "emergency")) ? "isolate" :
+ arg_replace ? "replace" :
+ "fail";
- if (arg_block) {
- if ((r = enable_wait_for_jobs(bus)) < 0) {
- log_error("Could not watch jobs: %s", strerror(-r));
- goto finish;
- }
+ one_name = table[verb_to_action(args[0])];
- if (!(s = set_new(string_hash_func, string_compare_func))) {
- log_error("Failed to allocate set.");
- r = -ENOMEM;
- goto finish;
- }
- }
} else {
assert(arg_action < ELEMENTSOF(table));
assert(table[arg_action]);
method = "StartUnit";
- mode = arg_action == ACTION_RESCUE ? "isolate" : "replace";
+
+ mode = (arg_action == ACTION_EMERGENCY ||
+ arg_action == ACTION_RESCUE) ? "isolate" : "replace";
+
+ one_name = table[arg_action];
+ }
+
+ if (arg_block) {
+ if ((r = enable_wait_for_jobs(bus)) < 0) {
+ log_error("Could not watch jobs: %s", strerror(-r));
+ goto finish;
+ }
+
+ if (!(s = set_new(string_hash_func, string_compare_func))) {
+ log_error("Failed to allocate set.");
+ r = -ENOMEM;
+ goto finish;
+ }
}
r = 0;
- if (arg_action == ACTION_SYSTEMCTL) {
+ if (one_name) {
+ if ((r = start_unit_one(bus, method, one_name, mode, s)) <= 0)
+ goto finish;
+ } else {
for (i = 1; i < n; i++)
if ((r = start_unit_one(bus, method, args[i], mode, s)) < 0)
goto finish;
-
- if (arg_block)
- r = wait_for_jobs(bus, s);
-
- } else {
- if ((r = start_unit_one(bus, method, table[arg_action], mode, s)) <= 0)
- goto finish;
}
+ if (arg_block)
+ r = wait_for_jobs(bus, s);
+
finish:
if (s)
set_free_free(s);
@@ -742,6 +793,15 @@ finish:
return r;
}
+static int start_special(DBusConnection *bus, char **args, unsigned n) {
+ assert(bus);
+ assert(args);
+
+ warn_wall(verb_to_action(args[0]));
+
+ return start_unit(bus, args, n);
+}
+
static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) {
DBusError error;
DBusMessage *m = NULL, *reply = NULL;
@@ -1322,14 +1382,15 @@ finish:
static int systemctl_help(void) {
printf("%s [options]\n\n"
- "Send control commands to the init system.\n\n"
+ "Send control commands to the init daemon.\n\n"
" -h --help Show this help\n"
" -t --type=TYPE List only units of a particular type\n"
" -a --all Show all units, including dead ones\n"
" --replace When installing a new job, replace existing conflicting ones\n"
" --system Connect to system bus\n"
" --session Connect to session bus\n"
- " --block Wait until operation finished\n\n"
+ " --block Wait until operation finished\n"
+ " --no-wall Don't send wall message before reboot/halt/power-off\n\n"
"Commands:\n"
" list-units List units\n"
" list-jobs List jobs\n"
@@ -1344,12 +1405,18 @@ static int systemctl_help(void) {
" monitor Monitor unit/job changes\n"
" dump Dump server status\n"
" snapshot [NAME] Create a snapshot\n"
- " daemon-reload Reload daemon configuration\n"
- " daemon-reexecute Reexecute daemon\n"
- " daemon-exit Ask the daemon to quit\n"
+ " daemon-reload Reload init daemon configuration\n"
+ " daemon-reexecute Reexecute init daemon\n"
+ " daemon-exit Ask the init daemon to quit\n"
" show-environment Dump environment\n"
" set-environment [NAME=VALUE...] Set one or more environment variables\n"
- " unset-environment [NAME...] Unset one or more environment variables\n",
+ " unset-environment [NAME...] Unset one or more environment variables\n"
+ " halt Shut down and halt the system\n"
+ " reboot Shut down and reboot the system\n"
+ " poweroff Shut down and power off the system\n"
+ " default Enter default mode\n"
+ " rescue Enter rescue mode\n"
+ " emergency Enter emergency mode\n",
program_invocation_short_name);
return 0;
@@ -1366,7 +1433,8 @@ static int halt_help(void) {
" -f --force Force immediate reboot/halt/power-off\n"
" -w --wtmp-only Don't reboot/halt/power-off, just write wtmp record\n"
" -d --no-wtmp Don't write wtmp record\n"
- " -n --no-sync Don't sync before reboot/halt/power-off\n",
+ " -n --no-sync Don't sync before reboot/halt/power-off\n"
+ " --no-wall Don't send wall message before reboot/halt/power-off\n",
program_invocation_short_name,
arg_action == ACTION_REBOOT ? "Reboot" :
arg_action == ACTION_POWEROFF ? "Power off" :
@@ -1377,14 +1445,15 @@ static int halt_help(void) {
static int shutdown_help(void) {
- printf("%s [options] [TIME] [WALL...]\n\n"
+ printf("%s [options] [IGNORED] [WALL...]\n\n"
"Shut down the system.\n\n"
" --help Show this help\n"
" -H --halt Halt the machine\n"
" -P --poweroff Power-off the machine\n"
" -r --reboot Reboot the machine\n"
" -h Equivalent to --poweroff, overriden by --halt\n"
- " -k Don't reboot/halt/power-off, just send warnings\n",
+ " -k Don't reboot/halt/power-off, just send warnings\n"
+ " --no-wall Don't send wall message before reboot/halt/power-off\n",
program_invocation_short_name);
return 0;
@@ -1393,15 +1462,16 @@ static int shutdown_help(void) {
static int telinit_help(void) {
printf("%s [options]\n\n"
- "Send control commands to the init system.\n\n"
- " --help Show this help\n\n"
+ "Send control commands to the init daemon.\n\n"
+ " --help Show this help\n"
+ " --no-wall Don't send wall message before reboot/halt/power-off\n\n"
"Commands:\n"
" 0 Power-off the machine\n"
" 6 Reboot the machine\n"
- " 1, 2, 3, 4, 5 Start runlevelX.target unit\n"
- " s, S Start the rescue.target unit\n"
- " q, Q Ask systemd to reload its configuration\n"
- " u, U Ask systemd to reexecute itself\n",
+ " 2, 3, 4, 5 Start runlevelX.target unit\n"
+ " 1, s, S Enter rescue mode\n"
+ " q, Q Reload init daemon configuration\n"
+ " u, U Reexecute init daemon\n",
program_invocation_short_name);
return 0;
@@ -1423,7 +1493,8 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
ARG_REPLACE = 0x100,
ARG_SESSION,
ARG_SYSTEM,
- ARG_BLOCK
+ ARG_BLOCK,
+ ARG_NO_WALL
};
static const struct option options[] = {
@@ -1434,6 +1505,7 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
{ "session", no_argument, NULL, ARG_SESSION },
{ "system", no_argument, NULL, ARG_SYSTEM },
{ "block", no_argument, NULL, ARG_BLOCK },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
{ NULL, 0, NULL, 0 }
};
@@ -1474,6 +1546,10 @@ static int systemctl_parse_argv(int argc, char *argv[]) {
arg_block = true;
break;
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
case '?':
return -EINVAL;
@@ -1491,7 +1567,8 @@ static int halt_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
ARG_HALT,
- ARG_REBOOT
+ ARG_REBOOT,
+ ARG_NO_WALL
};
static const struct option options[] = {
@@ -1503,6 +1580,7 @@ static int halt_parse_argv(int argc, char *argv[]) {
{ "wtmp-only", no_argument, NULL, 'w' },
{ "no-wtmp", no_argument, NULL, 'd' },
{ "no-sync", no_argument, NULL, 'n' },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
{ NULL, 0, NULL, 0 }
};
@@ -1550,6 +1628,10 @@ static int halt_parse_argv(int argc, char *argv[]) {
arg_no_sync = true;
break;
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
case 'i':
case 'h':
/* Compatibility nops */
@@ -1576,6 +1658,7 @@ static int shutdown_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
+ ARG_NO_WALL
};
static const struct option options[] = {
@@ -1583,6 +1666,7 @@ static int shutdown_parse_argv(int argc, char *argv[]) {
{ "halt", no_argument, NULL, 'H' },
{ "poweroff", no_argument, NULL, 'P' },
{ "reboot", no_argument, NULL, 'r' },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
{ NULL, 0, NULL, 0 }
};
@@ -1619,6 +1703,10 @@ static int shutdown_parse_argv(int argc, char *argv[]) {
arg_dry = true;
break;
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
case 't':
case 'a':
/* Compatibility nops */
@@ -1647,10 +1735,12 @@ static int telinit_parse_argv(int argc, char *argv[]) {
enum {
ARG_HELP = 0x100,
+ ARG_NO_WALL
};
static const struct option options[] = {
{ "help", no_argument, NULL, ARG_HELP },
+ { "no-wall", no_argument, NULL, ARG_NO_WALL },
{ NULL, 0, NULL, 0 }
};
@@ -1686,6 +1776,10 @@ static int telinit_parse_argv(int argc, char *argv[]) {
telinit_help();
return 0;
+ case ARG_NO_WALL:
+ arg_no_wall = true;
+ break;
+
case '?':
return -EINVAL;
@@ -1838,6 +1932,12 @@ static int systemctl_main(DBusConnection *bus, int argc, char *argv[]) {
{ "show-environment", EQUAL, 1, show_enviroment },
{ "set-environment", MORE, 2, set_environment },
{ "unset-environment", MORE, 2, set_environment },
+ { "halt", EQUAL, 1, start_special },
+ { "poweroff", EQUAL, 1, start_special },
+ { "reboot", EQUAL, 1, start_special },
+ { "default", EQUAL, 1, start_special },
+ { "rescue", EQUAL, 1, start_special },
+ { "emergency", EQUAL, 1, start_special },
};
int left;
@@ -1919,7 +2019,7 @@ static int reload_with_fallback(DBusConnection *bus) {
static int start_with_fallback(DBusConnection *bus) {
int r;
- warn_wall();
+ warn_wall(arg_action);
if (bus) {
/* First, try systemd via D-Bus. */
@@ -1943,8 +2043,6 @@ static int halt_main(DBusConnection *bus) {
if (!arg_immediate)
return start_with_fallback(bus);
- warn_wall();
-
if (!arg_no_wtmp)
if ((r = utmp_put_shutdown(0)) < 0)
log_warning("Failed to write utmp record: %s", strerror(-r));
@@ -2049,6 +2147,7 @@ int main(int argc, char*argv[]) {
case ACTION_RUNLEVEL4:
case ACTION_RUNLEVEL5:
case ACTION_RESCUE:
+ case ACTION_EMERGENCY:
retval = start_with_fallback(bus) < 0;
break;
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-11 23:22:33 +0000