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From 74640adc3e79064ab34f7ced59e231603c58f07c Mon Sep 17 00:00:00 2001
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From: Lennart Poettering <lennart@poettering.net>
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Date: Fri, 5 Oct 2018 22:54:57 +0200
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Subject: [PATCH] nspawn: simplify machine terminate bus call
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We have the machine name anyway, let's use TerminateMachine() on
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machined's Manager object directly with it. That way it's a single
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method call only, instead of two, to terminate the machine.
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(cherry picked from commit 11d81e506ed68c6c5cebe319dc57a9a2fc4319c5)
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Resolves: #1697893
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---
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src/nspawn/nspawn-register.c | 34 +++++++---------------------------
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src/nspawn/nspawn-register.h | 2 +-
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src/nspawn/nspawn.c | 2 +-
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3 files changed, 9 insertions(+), 29 deletions(-)
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diff --git a/src/nspawn/nspawn-register.c b/src/nspawn/nspawn-register.c
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index 85f3cf1c01..e459cb63ec 100644
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--- a/src/nspawn/nspawn-register.c
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+++ b/src/nspawn/nspawn-register.c
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@@ -201,10 +201,11 @@ int register_machine(
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return 0;
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}
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-int terminate_machine(sd_bus *bus, pid_t pid) {
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+int terminate_machine(
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+ sd_bus *bus,
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+ const char *machine_name) {
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+
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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- _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
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- const char *path;
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int r;
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assert(bus);
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@@ -214,32 +215,11 @@ int terminate_machine(sd_bus *bus, pid_t pid) {
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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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- return bus_log_parse_error(r);
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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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+ "TerminateMachine",
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&error,
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NULL,
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- NULL);
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+ "s",
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+ machine_name);
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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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diff --git a/src/nspawn/nspawn-register.h b/src/nspawn/nspawn-register.h
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index 30807b9687..ddd8b053a3 100644
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--- a/src/nspawn/nspawn-register.h
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+++ b/src/nspawn/nspawn-register.h
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@@ -8,6 +8,6 @@
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#include "nspawn-mount.h"
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int register_machine(sd_bus *bus, const char *machine_name, pid_t pid, const char *directory, sd_id128_t uuid, int local_ifindex, const char *slice, CustomMount *mounts, unsigned n_mounts, int kill_signal, char **properties, bool keep_unit, const char *service);
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-int terminate_machine(sd_bus *bus, pid_t pid);
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+int terminate_machine(sd_bus *bus, const char *machine_name);
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int allocate_scope(sd_bus *bus, const char *machine_name, pid_t pid, const char *slice, CustomMount *mounts, unsigned n_mounts, int kill_signal, char **properties);
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diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
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index 8aec893a69..c4943f6eb7 100644
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--- a/src/nspawn/nspawn.c
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+++ b/src/nspawn/nspawn.c
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@@ -4066,7 +4066,7 @@ static int run(int master,
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/* Kill if it is not dead yet anyway */
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if (arg_register && !arg_keep_unit && bus)
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- terminate_machine(bus, *pid);
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+ terminate_machine(bus, arg_machine);
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/* Normally redundant, but better safe than sorry */
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(void) kill(*pid, SIGKILL);
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