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bond,bridge,team: use uuid for con.master when generating connection

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If we're generating a connection for an externally configured slave,
refer the master by the UUID instead of the device name.

This doesn't matter most of the time. However, on a checkpoint restore
we need to make sure that a connection that is unambiguously the original
master is up.

Otherwise it could happen that a different connection was activated on the
same master device and the slaves being restored don't agree on which master
connection to bring up.

I can't think of any thing that would rely on this but I've been wrong
about more serious things before.

Fixes-test: @libnm_snapshot_reattach_unmanaged_ports_to_bridge

https://bugzilla.redhat.com/show_bug.cgi?id=2125615
This commit is contained in:
Lubomir Rintel
2022-09-30 22:40:03 +02:00
parent 455dbfce6e
commit dc254f90e2
3 changed files with 15 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

9
src/core/devices/nm-device-bond.c
View File

@@ -224,9 +224,10 @@ controller_update_port_connection(NMDevice *self,
GError **error)
{
NMSettingBondPort *s_port;
int ifindex_port = nm_device_get_ifindex(port);
uint queue_id = NM_BOND_PORT_QUEUE_ID_DEF;
gs_free char *queue_id_str = NULL;
int ifindex_port = nm_device_get_ifindex(port);
NMConnection *applied_connection = nm_device_get_applied_connection(self);
uint queue_id = NM_BOND_PORT_QUEUE_ID_DEF;
gs_free char *queue_id_str = NULL;
g_return_val_if_fail(ifindex_port > 0, FALSE);
@@ -243,7 +244,7 @@ controller_update_port_connection(NMDevice *self,
g_object_set(nm_connection_get_setting_connection(connection),
NM_SETTING_CONNECTION_MASTER,
nm_device_get_iface(self),
nm_connection_get_uuid(applied_connection),
NM_SETTING_CONNECTION_SLAVE_TYPE,
NM_SETTING_BOND_SETTING_NAME,
NULL);

9
src/core/devices/nm-device-bridge.c
View File

@@ -679,9 +679,10 @@ master_update_slave_connection(NMDevice *device,
NMDeviceBridge *self = NM_DEVICE_BRIDGE(device);
NMSettingConnection *s_con;
NMSettingBridgePort *s_port;
int ifindex_slave = nm_device_get_ifindex(slave);
const char *iface = nm_device_get_iface(device);
const Option *option;
int ifindex_slave = nm_device_get_ifindex(slave);
NMConnection *applied_connection = nm_device_get_applied_connection(device);
const Option *option;
g_return_val_if_fail(ifindex_slave > 0, FALSE);
@@ -717,7 +718,7 @@ master_update_slave_connection(NMDevice *device,
g_object_set(s_con,
NM_SETTING_CONNECTION_MASTER,
iface,
nm_connection_get_uuid(applied_connection),
NM_SETTING_CONNECTION_SLAVE_TYPE,
NM_SETTING_BRIDGE_SETTING_NAME,
NULL);

9
src/core/devices/team/nm-device-team.c
View File

@@ -258,9 +258,10 @@ master_update_slave_connection(NMDevice *device,
gs_free_error GError *connect_error = NULL;
int err = 0;
struct teamdctl *tdc;
const char *team_port_config = NULL;
const char *iface = nm_device_get_iface(device);
const char *iface_slave = nm_device_get_iface(slave);
const char *team_port_config = NULL;
const char *iface = nm_device_get_iface(device);
const char *iface_slave = nm_device_get_iface(slave);
NMConnection *applied_connection = nm_device_get_applied_connection(device);
tdc = _tdc_connect_new(self, iface, &connect_error);
if (!tdc) {
@@ -299,7 +300,7 @@ master_update_slave_connection(NMDevice *device,
g_object_set(nm_connection_get_setting_connection(connection),
NM_SETTING_CONNECTION_MASTER,
iface,
nm_connection_get_uuid(applied_connection),
NM_SETTING_CONNECTION_SLAVE_TYPE,
NM_SETTING_TEAM_SETTING_NAME,
NULL);