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ovs: fail OVS system interfaces when the db entry gets removed

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If an OVS system interface that is active in NM gets removed
externally from the ovsdb, NM doesn't notice it and keeps the
connection active.

Let the OVS factory also handle the removal message for system
interfaces. In that case, we need to match the removed interface name
to the actual device, which can be of any kind.
This commit is contained in:
Beniamino Galvani
2020-12-16 11:36:01 +01:00
parent c288a338f9
commit 8e55efeb9d
1 changed files with 32 additions and 4 deletions
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36
src/devices/ovs/nm-ovs-factory.c
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@@ -140,24 +140,52 @@ ovsdb_device_removed(NMOvsdb * ovsdb,
NMDeviceFactory *self)
{
const NMDeviceType device_type = device_type_i;
NMDevice * device;
NMDevice * device = NULL;
NMDeviceState device_state;
gboolean is_system_interface = FALSE;
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE
&& !NM_IN_STRSET(subtype, "internal", "patch"))
&& !NM_IN_STRSET(subtype, "internal", "patch", "system"))
return;
device = nm_manager_get_device(NM_MANAGER_GET, name, device_type);
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE && nm_streq0(subtype, "system")) {
NMDevice * d;
const CList * list;
NMSettingOvsInterface *s_ovs_int;
/* The device associated to an OVS system interface can be of
* any kind. Find an interface with the same name and which has
* the OVS-interface setting. */
is_system_interface = TRUE;
nm_manager_for_each_device (NM_MANAGER_GET, d, list) {
if (!nm_streq0(nm_device_get_iface(d), name))
continue;
s_ovs_int = nm_device_get_applied_setting(d, NM_TYPE_SETTING_OVS_INTERFACE);
if (!s_ovs_int)
continue;
if (!nm_streq0(nm_setting_ovs_interface_get_interface_type(s_ovs_int), "system"))
continue;
device = d;
}
} else {
device = nm_manager_get_device(NM_MANAGER_GET, name, device_type);
}
if (!device)
return;
device_state = nm_device_get_state(device);
if (device_type == NM_DEVICE_TYPE_OVS_INTERFACE && device_state > NM_DEVICE_STATE_DISCONNECTED
&& device_state < NM_DEVICE_STATE_DEACTIVATING) {
nm_device_state_changed(device,
NM_DEVICE_STATE_DEACTIVATING,
NM_DEVICE_STATE_REASON_DEPENDENCY_FAILED);
} else if (device_state == NM_DEVICE_STATE_UNMANAGED) {
return;
}
/* OVS system interfaces still exist even without the ovsdb entry */
if (!is_system_interface && device_state == NM_DEVICE_STATE_UNMANAGED) {
nm_device_unrealize(device, TRUE, NULL);
}
}