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Diffstat (limited to 'src/systemctl')
-rw-r--r--src/systemctl/systemctl.c30
1 files changed, 24 insertions, 6 deletions
diff --git a/src/systemctl/systemctl.c b/src/systemctl/systemctl.c
index 9d22aad287..6170cc93d5 100644
--- a/src/systemctl/systemctl.c
+++ b/src/systemctl/systemctl.c
@@ -20,6 +20,8 @@
***/
#include <sys/reboot.h>
+#include <linux/reboot.h>
+#include <sys/syscall.h>
#include <stdio.h>
#include <getopt.h>
#include <locale.h>
@@ -4804,7 +4806,7 @@ static int systemctl_help(void) {
" emergency Enter system emergency mode\n"
" halt Shut down and halt the system\n"
" poweroff Shut down and power-off the system\n"
- " reboot Shut down and reboot the system\n"
+ " reboot [ARG] Shut down and reboot the system\n"
" kexec Shut down and reboot the system with kexec\n"
" exit Request user instance exit\n"
" switch-root [ROOT] [INIT] Change to a different root file system\n"
@@ -4818,7 +4820,7 @@ static int systemctl_help(void) {
static int halt_help(void) {
- printf("%s [OPTIONS...]\n\n"
+ printf("%s [OPTIONS...]%s\n\n"
"%s the system.\n\n"
" --help Show this help\n"
" --halt Halt the machine\n"
@@ -4829,6 +4831,7 @@ static int halt_help(void) {
" -d --no-wtmp Don't write wtmp record\n"
" --no-wall Don't send wall message before halt/power-off/reboot\n",
program_invocation_short_name,
+ arg_action == ACTION_REBOOT ? " [ARG]" : "",
arg_action == ACTION_REBOOT ? "Reboot" :
arg_action == ACTION_POWEROFF ? "Power off" :
"Halt");
@@ -5253,7 +5256,7 @@ static int halt_parse_argv(int argc, char *argv[]) {
{}
};
- int c, runlevel;
+ int c, r, runlevel;
assert(argc >= 0);
assert(argv);
@@ -5311,7 +5314,14 @@ static int halt_parse_argv(int argc, char *argv[]) {
}
}
- if (optind < argc) {
+ if (arg_action == ACTION_REBOOT && argc == optind + 1) {
+ r = write_string_file(REBOOT_PARAM_FILE, argv[optind]);
+ if (r < 0) {
+ log_error("Failed to write reboot param to "
+ REBOOT_PARAM_FILE": %s", strerror(-r));
+ return r;
+ }
+ } else if (optind < argc) {
log_error("Too many arguments.");
return -EINVAL;
}
@@ -5944,6 +5954,8 @@ done:
static _noreturn_ void halt_now(enum action a) {
+ _cleanup_free_ char *param = NULL;
+
/* Make sure C-A-D is handled by the kernel from this
* point on... */
reboot(RB_ENABLE_CAD);
@@ -5961,8 +5973,14 @@ static _noreturn_ void halt_now(enum action a) {
break;
case ACTION_REBOOT:
- log_info("Rebooting.");
- reboot(RB_AUTOBOOT);
+ if (read_one_line_file(REBOOT_PARAM_FILE, &param) == 0) {
+ log_info("Rebooting with arg '%s'.", param);
+ syscall(SYS_reboot, LINUX_REBOOT_MAGIC1, LINUX_REBOOT_MAGIC2,
+ LINUX_REBOOT_CMD_RESTART2, param);
+ } else {
+ log_info("Rebooting.");
+ reboot(RB_AUTOBOOT);
+ }
break;
default: