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util: virFirewallDGetPolicies: gracefully handle older firewalld

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If the running firewalld doesn't support getPolicies() then we fallback
to the "libvirt" zone. Throwing an error log is excessive since we
gracefully fallback.

Avoids these logs:

error : virGDBusCallMethod:242 : error from service: \
GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod

Fixes: ab56f84976 ("util: add virFirewallDGetPolicies()")
Signed-off-by: Eric Garver <eric@garver.life>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This commit is contained in:
Eric Garver 2022-11-10 11:31:45 -05:00 committed by Michal Privoznik
parent 7594532ae2
commit d5ae0cd178
1 changed files with 10 additions and 1 deletions
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11
src/util/virfirewalld.c
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@ -240,6 +240,7 @@ virFirewallDGetPolicies(char ***policies, size_t *npolicies)
GDBusConnection *sysbus = virGDBusGetSystemBus();
g_autoptr(GVariant) reply = NULL;
g_autoptr(GVariant) array = NULL;
g_autoptr(virError) error = NULL;
*npolicies = 0;
*policies = NULL;
@ -247,10 +248,12 @@ virFirewallDGetPolicies(char ***policies, size_t *npolicies)
if (!sysbus)
return -1;
error = g_new0(virError, 1);
if (virGDBusCallMethod(sysbus,
&reply,
G_VARIANT_TYPE("(as)"),
NULL,
error,
VIR_FIREWALL_FIREWALLD_SERVICE,
"/org/fedoraproject/FirewallD1",
"org.fedoraproject.FirewallD1.policy",
@ -258,6 +261,12 @@ virFirewallDGetPolicies(char ***policies, size_t *npolicies)
NULL) < 0)
return -1;
if (error->level == VIR_ERR_ERROR) {
if (!virGDBusErrorIsUnknownMethod(error))
virReportErrorObject(error);
return -1;
}
g_variant_get(reply, "(@as)", &array);
*policies = g_variant_dup_strv(array, npolicies);