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Tell systemd when dbus is ready/shutting down/reloading config

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(cherry picked from commit ac18e08d6959d479e839f40f26232a359e5a36fc)
This commit is contained in:
licunlong 2022-01-29 16:59:29 +08:00 committed by openeuler-sync-bot
parent a0779184b5
commit 10e71fd5ca
6 changed files with 394 additions and 1 deletions
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75
backport-bus-Also-tell-systemd-before-we-shut-down.patch Normal file
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@ -0,0 +1,75 @@
From 03c0db9ff51dedeb98f42c715a70a1bd10c7f595 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@collabora.com>
Date: Mon, 15 Jan 2018 15:31:55 +0000
Subject: [PATCH] bus: Also tell systemd before we shut down
Signed-off-by: Simon McVittie <smcv@collabora.com>
Reviewed-by: Philip Withnall <withnall@endlessm.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=104641
---
bus/main.c | 1 +
dbus/dbus-sysdeps-util-unix.c | 12 ++++++++++++
dbus/dbus-sysdeps-util-win.c | 5 +++++
dbus/dbus-sysdeps.h | 1 +
4 files changed, 19 insertions(+)
diff --git a/bus/main.c b/bus/main.c
index 578aa989..28223899 100644
--- a/bus/main.c
+++ b/bus/main.c
@@ -320,6 +320,7 @@ handle_reload_watch (DBusWatch *watch,
loop = bus_context_get_loop (context);
if (loop != NULL)
{
+ _dbus_daemon_report_stopping ();
_dbus_loop_quit (loop);
}
}
diff --git a/dbus/dbus-sysdeps-util-unix.c b/dbus/dbus-sysdeps-util-unix.c
index 8a7c9278..24eba4e3 100644
--- a/dbus/dbus-sysdeps-util-unix.c
+++ b/dbus/dbus-sysdeps-util-unix.c
@@ -1556,3 +1556,15 @@ _dbus_daemon_report_reloaded (void)
_dbus_daemon_report_ready ();
#endif
}
+
+/**
+ * Report to a service manager that the daemon calling this function is
+ * shutting down. This is currently only implemented for systemd.
+ */
+void
+_dbus_daemon_report_stopping (void)
+{
+#ifdef HAVE_SYSTEMD
+ sd_notify (0, "STOPPING=1");
+#endif
+}
diff --git a/dbus/dbus-sysdeps-util-win.c b/dbus/dbus-sysdeps-util-win.c
index 917dd05e..a5c3bba6 100644
--- a/dbus/dbus-sysdeps-util-win.c
+++ b/dbus/dbus-sysdeps-util-win.c
@@ -1669,3 +1669,8 @@ void
_dbus_daemon_report_reloaded (void)
{
}
+
+void
+_dbus_daemon_report_stopping (void)
+{
+}
diff --git a/dbus/dbus-sysdeps.h b/dbus/dbus-sysdeps.h
index d8e69589..0d1ff7c4 100644
--- a/dbus/dbus-sysdeps.h
+++ b/dbus/dbus-sysdeps.h
@@ -690,6 +690,7 @@ void _dbus_rlimit_free (DBusRLimit *lim);
void _dbus_daemon_report_ready (void);
void _dbus_daemon_report_reloading (void);
void _dbus_daemon_report_reloaded (void);
+void _dbus_daemon_report_stopping (void);
/** @} */
--
2.27.0

104
backport-bus-Also-tell-systemd-when-we-re-reloading.patch Normal file
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@ -0,0 +1,104 @@
From c937a39e4ba1e297518edbd78feeb6f1cc764bd1 Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@collabora.com>
Date: Mon, 15 Jan 2018 15:31:41 +0000
Subject: [PATCH] bus: Also tell systemd when we're reloading
Signed-off-by: Simon McVittie <smcv@collabora.com>
Reviewed-by: Philip Withnall <withnall@endlessm.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=104641
---
bus/bus.c | 4 ++++
dbus/dbus-sysdeps-util-unix.c | 25 +++++++++++++++++++++++++
dbus/dbus-sysdeps-util-win.c | 10 ++++++++++
dbus/dbus-sysdeps.h | 2 ++
4 files changed, 41 insertions(+)
diff --git a/bus/bus.c b/bus/bus.c
index abb2ea2f..9fd9820b 100644
--- a/bus/bus.c
+++ b/bus/bus.c
@@ -1065,6 +1065,8 @@ bus_context_reload_config (BusContext *context,
DBusString config_file;
dbus_bool_t ret;
+ _dbus_daemon_report_reloading ();
+
/* Flush the user database cache */
_dbus_flush_caches ();
@@ -1095,6 +1097,8 @@ bus_context_reload_config (BusContext *context,
bus_context_log (context, DBUS_SYSTEM_LOG_INFO, "Unable to reload configuration: %s", error->message);
if (parser != NULL)
bus_config_parser_unref (parser);
+
+ _dbus_daemon_report_reloaded ();
return ret;
}
diff --git a/dbus/dbus-sysdeps-util-unix.c b/dbus/dbus-sysdeps-util-unix.c
index 838cd932..8a7c9278 100644
--- a/dbus/dbus-sysdeps-util-unix.c
+++ b/dbus/dbus-sysdeps-util-unix.c
@@ -1531,3 +1531,28 @@ _dbus_daemon_report_ready (void)
sd_notify (0, "READY=1");
#endif
}
+
+/**
+ * Report to a service manager that the daemon calling this function is
+ * reloading configuration. This is currently only implemented for systemd.
+ */
+void
+_dbus_daemon_report_reloading (void)
+{
+#ifdef HAVE_SYSTEMD
+ sd_notify (0, "RELOADING=1");
+#endif
+}
+
+/**
+ * Report to a service manager that the daemon calling this function is
+ * reloading configuration. This is currently only implemented for systemd.
+ */
+void
+_dbus_daemon_report_reloaded (void)
+{
+#ifdef HAVE_SYSTEMD
+ /* For systemd, this is the same code */
+ _dbus_daemon_report_ready ();
+#endif
+}
diff --git a/dbus/dbus-sysdeps-util-win.c b/dbus/dbus-sysdeps-util-win.c
index f613130e..917dd05e 100644
--- a/dbus/dbus-sysdeps-util-win.c
+++ b/dbus/dbus-sysdeps-util-win.c
@@ -1659,3 +1659,13 @@ void
_dbus_daemon_report_ready (void)
{
}
+
+void
+_dbus_daemon_report_reloading (void)
+{
+}
+
+void
+_dbus_daemon_report_reloaded (void)
+{
+}
diff --git a/dbus/dbus-sysdeps.h b/dbus/dbus-sysdeps.h
index b2943906..d8e69589 100644
--- a/dbus/dbus-sysdeps.h
+++ b/dbus/dbus-sysdeps.h
@@ -688,6 +688,8 @@ dbus_bool_t _dbus_test_append_different_username (DBusString *username);
#endif /* DBUS_ENABLE_EMBEDDED_TESTS */
void _dbus_daemon_report_ready (void);
+void _dbus_daemon_report_reloading (void);
+void _dbus_daemon_report_reloaded (void);
/** @} */
--
2.27.0

45
backport-bus-Clear-INVOCATION_ID-when-carrying-out-traditiona.patch Normal file
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@ -0,0 +1,45 @@
From 66246fff2a0bd005817fb9d108544da86973a81e Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@collabora.com>
Date: Tue, 20 Mar 2018 12:33:51 +0000
Subject: [PATCH] bus: Clear INVOCATION_ID when carrying out traditional
activation
We weren't sure whether this one should be inherited or not, so I
asked on systemd-devel, and Lennart thought it shouldn't.
Signed-off-by: Simon McVittie <smcv@collabora.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=104641
Reviewed-by: Philip Withnall <withnall@endlessm.com>
---
bus/activation.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/bus/activation.c b/bus/activation.c
index 66640ba6..2a427d9c 100644
--- a/bus/activation.c
+++ b/bus/activation.c
@@ -862,7 +862,6 @@ populate_environment (BusActivation *activation)
* - TERM, WATCHDOG_*: Should not be set for dbus-daemon, so not applicable
* - MAINPID, SERVICE_RESULT, EXIT_CODE, EXIT_STATUS: Not set for ExecStart,
* so not applicable
- * - INVOCATION_ID: TODO: Do we want to clear this or not? It isn't clear.
*/
/* We give activated services their own Journal stream to avoid their
@@ -878,6 +877,13 @@ populate_environment (BusActivation *activation)
* (and NotifyAccess wouldn't let it write here anyway) */
_dbus_hash_table_remove_string (activation->environment, "NOTIFY_SOCKET");
+ /* This identifies the dbus-daemon invocation. Whether it should be
+ * inherited by "smaller" services isn't entirely clear-cut, but not
+ * inheriting it makes traditional D-Bus activation under systemd a
+ * little more consistent with systemd activation.
+ * https://lists.freedesktop.org/archives/systemd-devel/2018-March/040467.html */
+ _dbus_hash_table_remove_string (activation->environment, "INVOCATION_ID");
+
return retval;
}
--
2.27.0

57
backport-bus-Don-t-pass-systemd-environment-variables-to-acti.patch Normal file
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@ -0,0 +1,57 @@
From be4670767377a08b0c6cabbca1000ca614174c2c Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@collabora.com>
Date: Mon, 15 Jan 2018 15:26:33 +0000
Subject: [PATCH] bus: Don't pass systemd environment variables to activated
services
Signed-off-by: Simon McVittie <smcv@collabora.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=104641
Reviewed-by: Philip Withnall <withnall@endlessm.com>
---
bus/activation.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/bus/activation.c b/bus/activation.c
index edf96a2c..66640ba6 100644
--- a/bus/activation.c
+++ b/bus/activation.c
@@ -848,6 +848,36 @@ populate_environment (BusActivation *activation)
retval = _dbus_hash_table_from_array (activation->environment, environment, '=');
dbus_free_string_array (environment);
+ /*
+ * These environment variables are set by systemd for the dbus-daemon
+ * itself, and are not applicable to our child processes.
+ *
+ * Of the other environment variables listed in systemd.exec(5):
+ *
+ * - XDG_RUNTIME_DIR, XDG_SESSION_ID, XDG_SEAT, XDG_VTNR: Properties of
+ * the session and equally true for the activated service, should not
+ * be reset
+ * - PATH, LANG, USER, LOGNAME, HOME, SHELL, MANAGERPID: Equally true for
+ * the activated service, should not be reset
+ * - TERM, WATCHDOG_*: Should not be set for dbus-daemon, so not applicable
+ * - MAINPID, SERVICE_RESULT, EXIT_CODE, EXIT_STATUS: Not set for ExecStart,
+ * so not applicable
+ * - INVOCATION_ID: TODO: Do we want to clear this or not? It isn't clear.
+ */
+
+ /* We give activated services their own Journal stream to avoid their
+ * logging being attributed to dbus-daemon */
+ _dbus_hash_table_remove_string (activation->environment, "JOURNAL_STREAM");
+
+ /* This is dbus-daemon's listening socket, not the activatable service's */
+ _dbus_hash_table_remove_string (activation->environment, "LISTEN_FDNAMES");
+ _dbus_hash_table_remove_string (activation->environment, "LISTEN_FDS");
+ _dbus_hash_table_remove_string (activation->environment, "LISTEN_PID");
+
+ /* This is dbus-daemon's status notification, not the activatable service's
+ * (and NotifyAccess wouldn't let it write here anyway) */
+ _dbus_hash_table_remove_string (activation->environment, "NOTIFY_SOCKET");
+
return retval;
}
--
2.27.0

103
backport-bus-Notify-systemd-when-we-are-ready.patch Normal file
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@ -0,0 +1,103 @@
From 18a0a8892b99f235e3897d9e5c600da00c61ef0a Mon Sep 17 00:00:00 2001
From: Simon McVittie <smcv@collabora.com>
Date: Mon, 15 Jan 2018 15:15:52 +0000
Subject: [PATCH] bus: Notify systemd when we are ready
Signed-off-by: Simon McVittie <smcv@collabora.com>
Bug: https://bugs.freedesktop.org/show_bug.cgi?id=104641
Reviewed-by: Philip Withnall <withnall@endlessm.com>
---
bus/dbus.service.in | 2 ++
bus/main.c | 1 +
bus/systemd-user/dbus.service.in | 2 ++
dbus/dbus-sysdeps-util-unix.c | 12 ++++++++++++
dbus/dbus-sysdeps-util-win.c | 5 +++++
dbus/dbus-sysdeps.h | 2 ++
6 files changed, 24 insertions(+)
diff --git a/bus/dbus.service.in b/bus/dbus.service.in
index ca0b7e96..3713810b 100644
--- a/bus/dbus.service.in
+++ b/bus/dbus.service.in
@@ -4,6 +4,8 @@ Documentation=man:dbus-daemon(1)
Requires=dbus.socket
[Service]
+Type=notify
+NotifyAccess=main
ExecStart=@EXPANDED_BINDIR@/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
ExecReload=@EXPANDED_BINDIR@/dbus-send --print-reply --system --type=method_call --dest=org.freedesktop.DBus / org.freedesktop.DBus.ReloadConfig
OOMScoreAdjust=-900
diff --git a/bus/main.c b/bus/main.c
index b3fcddd0..578aa989 100644
--- a/bus/main.c
+++ b/bus/main.c
@@ -716,6 +716,7 @@ main (int argc, char **argv)
#endif /* DBUS_UNIX */
_dbus_verbose ("We are on D-Bus...\n");
+ _dbus_daemon_report_ready ();
_dbus_loop_run (bus_context_get_loop (context));
bus_context_shutdown (context);
diff --git a/bus/systemd-user/dbus.service.in b/bus/systemd-user/dbus.service.in
index 7ceffbee..b291b923 100644
--- a/bus/systemd-user/dbus.service.in
+++ b/bus/systemd-user/dbus.service.in
@@ -4,5 +4,7 @@ Documentation=man:dbus-daemon(1)
Requires=dbus.socket
[Service]
+Type=notify
+NotifyAccess=main
ExecStart=@EXPANDED_BINDIR@/dbus-daemon --session --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
ExecReload=@EXPANDED_BINDIR@/dbus-send --print-reply --session --type=method_call --dest=org.freedesktop.DBus / org.freedesktop.DBus.ReloadConfig
diff --git a/dbus/dbus-sysdeps-util-unix.c b/dbus/dbus-sysdeps-util-unix.c
index b841bf63..838cd932 100644
--- a/dbus/dbus-sysdeps-util-unix.c
+++ b/dbus/dbus-sysdeps-util-unix.c
@@ -1564,3 +1564,15 @@ _dbus_test_append_different_username (DBusString *username)
}
#endif
+
+/**
+ * Report to a service manager that the daemon calling this function is
+ * ready for use. This is currently only implemented for systemd.
+ */
+void
+_dbus_daemon_report_ready (void)
+{
+#ifdef HAVE_SYSTEMD
+ sd_notify (0, "READY=1");
+#endif
+}
diff --git a/dbus/dbus-sysdeps-util-win.c b/dbus/dbus-sysdeps-util-win.c
index 1ef4ae6c..f613130e 100644
--- a/dbus/dbus-sysdeps-util-win.c
+++ b/dbus/dbus-sysdeps-util-win.c
@@ -1678,3 +1678,8 @@ _dbus_test_append_different_uid (DBusString *uid)
}
#endif
+
+void
+_dbus_daemon_report_ready (void)
+{
+}
diff --git a/dbus/dbus-sysdeps.h b/dbus/dbus-sysdeps.h
index b9b0c440..b2943906 100644
--- a/dbus/dbus-sysdeps.h
+++ b/dbus/dbus-sysdeps.h
@@ -687,6 +687,8 @@ dbus_bool_t _dbus_test_append_different_username (DBusString *username);
#endif
#endif /* DBUS_ENABLE_EMBEDDED_TESTS */
+void _dbus_daemon_report_ready (void);
+
/** @} */
DBUS_END_DECLS
--
2.27.0

11
dbus.spec
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@ -1,7 +1,7 @@
Name: dbus
Epoch: 1
Version: 1.12.20
Release: 5
Release: 6
Summary: System Message Bus
License: AFLv3.0 or GPLv2+
URL: http://www.freedesktop.org/Software/dbus/
@ -11,6 +11,12 @@ Source1: 00-start-message-bus.sh
Patch0001: bugfix-let-systemd-restart-dbus-when-the-it-enters-failed.patch
Patch0002: print-load-average-when-activate-service-timeout.patch
Patch6000: backport-bus-Notify-systemd-when-we-are-ready.patch
Patch6001: backport-bus-Also-tell-systemd-when-we-re-reloading.patch
Patch6002: backport-bus-Also-tell-systemd-before-we-shut-down.patch
Patch6003: backport-bus-Don-t-pass-systemd-environment-variables-to-acti.patch
Patch6004: backport-bus-Clear-INVOCATION_ID-when-carrying-out-traditiona.patch
BuildRequires: systemd-devel expat-devel libselinux-devel audit-libs-devel doxygen xmlto cmake
BuildRequires: autoconf-archive libtool libX11-devel libcap-ng-devel libxslt
@ -222,6 +228,9 @@ fi
%exclude %{_pkgdocdir}/README
%changelog
* Sat Jan 29 2022 licunlong <licunlong1@huawei.com> - 1:1.12.20-6
- Tell systemd when dbus is ready/shutting down/reloading config.
* Tue Nov 30 2021 xuxiaozhou <xuxiaozhou1@huawei.com> - 1:1.12.20-5
- add print-load-average-when-activate-service-timeout.patch for more debug information