From e0e61b4cf75f246b9bc50452a307e1e4d996df4c Mon Sep 17 00:00:00 2001 From: Peter Krempa Date: Mon, 19 Aug 2013 11:59:54 +0200 Subject: [PATCH] nwfilter: Don't fail to start if DBus isn't available When the daemon is compiled with firewalld support but the DBus message bus isn't started in the system, the initialization of the nwfilter driver fails even if there are fallback options. --- src/nwfilter/nwfilter_driver.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/src/nwfilter/nwfilter_driver.c b/src/nwfilter/nwfilter_driver.c index 9bb4b4e57c..1ed28a2ac2 100644 --- a/src/nwfilter/nwfilter_driver.c +++ b/src/nwfilter/nwfilter_driver.c @@ -175,7 +175,8 @@ nwfilterStateInitialize(bool privileged, DBusConnection *sysbus = NULL; #if WITH_DBUS - sysbus = virDBusGetSystemBus(); + if (virDBusHasSystemBus()) + sysbus = virDBusGetSystemBus(); #endif /* WITH_DBUS */ if (VIR_ALLOC(driverState) < 0) @@ -184,6 +185,7 @@ nwfilterStateInitialize(bool privileged, if (virMutexInit(&driverState->lock) < 0) goto err_free_driverstate; + /* remember that we are going to use firewalld */ driverState->watchingFirewallD = (sysbus != NULL); driverState->privileged = privileged; @@ -208,7 +210,8 @@ nwfilterStateInitialize(bool privileged, * startup the DBus late so we don't get a reload signal while * initializing */ - if (nwfilterDriverInstallDBusMatches(sysbus) < 0) { + if (sysbus && + nwfilterDriverInstallDBusMatches(sysbus) < 0) { VIR_ERROR(_("DBus matches could not be installed. Disabling nwfilter " "driver")); /* @@ -216,6 +219,8 @@ nwfilterStateInitialize(bool privileged, * may have caused the ebiptables driver to use the firewall tool * but now that the watches don't work, we just disable the nwfilter * driver + * + * This may only happen if the system bus is available. */ goto error; }