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From 5a69011a7d265ec42562fdfdb99d886570a49d7a Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Wed, 6 Nov 2013 02:05:06 +0100
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Subject: [PATCH] nspawn: explicitly terminate machines when we exit nspawn
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https://bugs.freedesktop.org/show_bug.cgi?id=68370
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https://bugzilla.redhat.com/show_bug.cgi?id=988883
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Conflicts:
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src/nspawn/nspawn.c
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Conflicts:
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src/nspawn/nspawn.c
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---
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src/nspawn/nspawn.c | 68 +++++++++++++++++++++++++++++++++++++++++++++++++----
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1 file changed, 64 insertions(+), 4 deletions(-)
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diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
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index 4bc49a3..f326f99 100644
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--- a/src/nspawn/nspawn.c
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+++ b/src/nspawn/nspawn.c
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@@ -43,9 +43,9 @@
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#include <sys/socket.h>
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#include <linux/netlink.h>
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-#include <systemd/sd-daemon.h>
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-#include <systemd/sd-bus.h>
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-
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+#include "sd-daemon.h"
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+#include "sd-bus.h"
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+#include "sd-id128.h"
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#include "log.h"
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#include "util.h"
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#include "mkdir.h"
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@@ -56,13 +56,13 @@
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#include "strv.h"
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#include "path-util.h"
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#include "loopback-setup.h"
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-#include "sd-id128.h"
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#include "dev-setup.h"
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#include "fdset.h"
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#include "build.h"
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#include "fileio.h"
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#include "bus-internal.h"
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#include "bus-message.h"
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+#include "bus-error.h"
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#ifndef TTY_GID
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#define TTY_GID 5
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@@ -1229,6 +1229,60 @@ static int register_machine(void) {
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return 0;
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}
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+static int terminate_machine(pid_t pid) {
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+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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+ _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
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+ _cleanup_bus_unref_ sd_bus *bus = NULL;
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+ const char *path;
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+ int r;
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+
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+ r = sd_bus_open_system(&bus;;
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+ if (r < 0) {
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+ log_error("Failed to open system bus: %s", strerror(-r));
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+ return r;
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+ }
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+
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+ r = sd_bus_call_method(
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+ bus,
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+ "org.freedesktop.machine1",
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+ "/org/freedesktop/machine1",
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+ "org.freedesktop.machine1.Manager",
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+ "GetMachineByPID",
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+ &error,
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+ &reply,
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+ "u",
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+ (uint32_t) pid);
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+ if (r < 0) {
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+ /* Note that the machine might already have been
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+ * cleaned up automatically, hence don't consider it a
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+ * failure if we cannot get the machine object. */
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+ log_debug("Failed to get machine: %s", bus_error_message(&error, r));
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+ return 0;
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+ }
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+
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+ r = sd_bus_message_read(reply, "o", &path);
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+ if (r < 0) {
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+ log_error("Failed to parse GetMachineByPID() reply: %s", bus_error_message(&error, r));
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+ return r;
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+ }
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+
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+ r = sd_bus_call_method(
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+ bus,
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+ "org.freedesktop.machine1",
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+ path,
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+ "org.freedesktop.machine1.Machine",
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+ "Terminate",
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+ &error,
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+ NULL,
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+ NULL);
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+ if (r < 0) {
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+ log_debug("Failed to terminate machine: %s", bus_error_message(&error, r));
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+ return 0;
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+ }
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+
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+ return 0;
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+}
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+
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static bool audit_enabled(void) {
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int fd;
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@@ -1704,6 +1758,12 @@ int main(int argc, char *argv[]) {
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if (saved_attr_valid)
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tcsetattr(STDIN_FILENO, TCSANOW, &saved_attr);
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+ /* Kill if it is not dead yet anyway */
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+ terminate_machine(pid);
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+
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+ /* Redundant, but better safe than sorry */
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+ kill(pid, SIGKILL);
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+
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k = wait_for_terminate(pid, &status);
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if (k < 0) {
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r = EXIT_FAILURE;
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