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NetworkManager/1001-checkpoint-fix-port-reactivation-when-controller-is-.patch
Beniamino Galvani b42cc4e3f2 Update patch numbering 
As done in the c9s branch, use 0 as base for patches that change
behavior from upstream, and 1000 for backports. In this way, upon a
rebase we can drop all (1000+x) patches and keep others.

Related: RHEL-35580
2024-06-20 10:17:25 +02:00

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From 4726822fb05d846ee402ce5e2c139dfb6c5a8ca3 Mon Sep 17 00:00:00 2001
From: Gris Ge <fge@redhat.com>
Date: Tue, 14 May 2024 11:39:21 +0800
Subject: [PATCH] checkpoint: fix port reactivation when controller is
deactivating
Problem:
Given a OVS port with `autoconnect-ports` set to default or false,
when reactivation required for checkpoint rollback,
previous activated OVS interface will be in deactivate state after
checkpoint rollback.
The root cause:
The `activate_stage1_device_prepare()` will mark the device as
failed when controller is deactivating or deactivated.
In `activate_stage1_device_prepare()`, the controller device is
retrieved from NMActiveConnection, it will be NULL when NMActiveConnection
is in deactivated state. This will cause device been set to
`NM_DEVICE_STATE_REASON_DEPENDENCY_FAILED` which prevent all follow
up `autoconnect` actions.
Fix:
When noticing controller is deactivating or deactivated with reason
`NM_DEVICE_STATE_REASON_NEW_ACTIVATION`, use new function
`nm_active_connection_set_controller_dev()` to wait on controller
device state between NM_DEVICE_STATE_PREPARE and
NM_DEVICE_STATE_ACTIVATED. After that, use existing
`nm_active_connection_set_controller()` to use new
NMActiveConnection of controller to move on.
Resolves: https://issues.redhat.com/browse/RHEL-31972
Signed-off-by: Gris Ge <fge@redhat.com>
(cherry picked from commit a68d2fd7807b8c6f976c45ffa29835b7f8f470ca)
---
src/core/devices/nm-device.c | 8 +++++
src/core/devices/nm-device.h | 3 +-
src/core/nm-active-connection.c | 62 +++++++++++++++++++++++++++++++++
src/core/nm-active-connection.h | 1 +
src/core/nm-manager.c | 15 +++++++-
5 files changed, 87 insertions(+), 2 deletions(-)
diff --git a/src/core/devices/nm-device.c b/src/core/devices/nm-device.c
index b96adefbd0..f3441508ab 100644
--- a/src/core/devices/nm-device.c
+++ b/src/core/devices/nm-device.c
@@ -17205,6 +17205,14 @@ nm_device_get_state(NMDevice *self)
return NM_DEVICE_GET_PRIVATE(self)->state;
}
+NMDeviceStateReason
+nm_device_get_state_reason(NMDevice *self)
+{
+ g_return_val_if_fail(NM_IS_DEVICE(self), NM_DEVICE_STATE_REASON_NONE);
+
+ return NM_DEVICE_GET_PRIVATE(self)->state_reason;
+}
+
/*****************************************************************************/
/**
diff --git a/src/core/devices/nm-device.h b/src/core/devices/nm-device.h
index ffe6b1af99..ba45497ce2 100644
--- a/src/core/devices/nm-device.h
+++ b/src/core/devices/nm-device.h
@@ -561,7 +561,8 @@ int nm_device_spec_match_list_full(NMDevice *self, const GSList *specs, int
gboolean nm_device_is_activating(NMDevice *dev);
gboolean nm_device_autoconnect_allowed(NMDevice *self);
-NMDeviceState nm_device_get_state(NMDevice *device);
+NMDeviceState nm_device_get_state(NMDevice *device);
+NMDeviceStateReason nm_device_get_state_reason(NMDevice *device);
gboolean nm_device_get_enabled(NMDevice *device);
diff --git a/src/core/nm-active-connection.c b/src/core/nm-active-connection.c
index b08d26c28b..7d89251caa 100644
--- a/src/core/nm-active-connection.c
+++ b/src/core/nm-active-connection.c
@@ -50,6 +50,7 @@ typedef struct _NMActiveConnectionPrivate {
NMAuthSubject *subject;
NMActiveConnection *controller;
+ NMDevice *controller_dev;
NMActiveConnection *parent;
@@ -826,6 +827,31 @@ master_state_cb(NMActiveConnection *master, GParamSpec *pspec, gpointer user_dat
}
}
+static void
+controller_dev_state_cb(NMDevice *controller_dev,
+ NMDeviceState new_state,
+ NMDeviceState old_state,
+ NMDeviceStateReason reason,
+ gpointer user_data)
+{
+ NMActiveConnection *self = NM_ACTIVE_CONNECTION(user_data);
+ NMActiveConnectionPrivate *priv = NM_ACTIVE_CONNECTION_GET_PRIVATE(self);
+ NMActRequest *controller_act_request;
+ NMActiveConnection *controller_ac;
+
+ if (new_state >= NM_DEVICE_STATE_PREPARE && new_state <= NM_DEVICE_STATE_ACTIVATED) {
+ controller_act_request = nm_device_get_act_request(controller_dev);
+ if (controller_act_request) {
+ controller_ac = NM_ACTIVE_CONNECTION(controller_act_request);
+ g_signal_handlers_disconnect_by_func(controller_dev,
+ G_CALLBACK(controller_dev_state_cb),
+ self);
+ g_clear_object(&priv->controller_dev);
+ nm_active_connection_set_controller(self, controller_ac);
+ }
+ }
+}
+
/**
* nm_active_connection_set_controller:
* @self: the #NMActiveConnection
@@ -867,6 +893,36 @@ nm_active_connection_set_controller(NMActiveConnection *self, NMActiveConnection
check_controller_ready(self);
}
+void
+nm_active_connection_set_controller_dev(NMActiveConnection *self, NMDevice *controller_dev)
+{
+ NMActiveConnectionPrivate *priv;
+
+ g_return_if_fail(NM_IS_ACTIVE_CONNECTION(self));
+ g_return_if_fail(NM_IS_DEVICE(controller_dev));
+
+ priv = NM_ACTIVE_CONNECTION_GET_PRIVATE(self);
+
+ /* Controller device is write-once, and must be set before exporting the object */
+ g_return_if_fail(priv->controller_dev == NULL);
+ g_return_if_fail(!nm_dbus_object_is_exported(NM_DBUS_OBJECT(self)));
+ if (priv->device) {
+ g_return_if_fail(priv->device != controller_dev);
+ }
+
+ _LOGD("set controller device %p, %s(%s), state %s",
+ controller_dev,
+ nm_device_get_iface(controller_dev),
+ nm_device_get_type_desc(controller_dev),
+ nm_device_state_to_string(nm_device_get_state(controller_dev)));
+
+ priv->controller_dev = g_object_ref(controller_dev);
+ g_signal_connect(priv->controller_dev,
+ NM_DEVICE_STATE_CHANGED,
+ G_CALLBACK(controller_dev_state_cb),
+ self);
+}
+
NMActivationType
nm_active_connection_get_activation_type(NMActiveConnection *self)
{
@@ -1533,7 +1589,13 @@ dispose(GObject *object)
if (priv->controller) {
g_signal_handlers_disconnect_by_func(priv->controller, G_CALLBACK(master_state_cb), self);
}
+ if (priv->controller_dev) {
+ g_signal_handlers_disconnect_by_func(priv->controller_dev,
+ G_CALLBACK(controller_dev_state_cb),
+ self);
+ }
g_clear_object(&priv->controller);
+ g_clear_object(&priv->controller_dev);
if (priv->parent)
unwatch_parent(self, TRUE);
diff --git a/src/core/nm-active-connection.h b/src/core/nm-active-connection.h
index 12cb311c97..ba32830257 100644
--- a/src/core/nm-active-connection.h
+++ b/src/core/nm-active-connection.h
@@ -175,6 +175,7 @@ NMActiveConnection *nm_active_connection_get_controller(NMActiveConnection *self
gboolean nm_active_connection_get_controller_ready(NMActiveConnection *self);
void nm_active_connection_set_controller(NMActiveConnection *self, NMActiveConnection *controller);
+void nm_active_connection_set_controller_dev(NMActiveConnection *self, NMDevice *controller_dev);
void nm_active_connection_set_parent(NMActiveConnection *self, NMActiveConnection *parent);
diff --git a/src/core/nm-manager.c b/src/core/nm-manager.c
index b2a827e38b..2c2834e9fc 100644
--- a/src/core/nm-manager.c
+++ b/src/core/nm-manager.c
@@ -5943,7 +5943,20 @@ _internal_activate_device(NMManager *self, NMActiveConnection *active, GError **
NM_DEVICE_STATE_REASON_USER_REQUESTED);
}
- nm_active_connection_set_controller(active, master_ac);
+ /* If controller NMActiveConnection is deactivating, we should wait on
+ * controller's NMDevice to have new NMActiveConnection after
+ * controller device state change to between NM_DEVICE_STATE_PREPARE and
+ * NM_DEVICE_STATE_ACTIVATED.
+ */
+ if ((nm_active_connection_get_state(master_ac) >= NM_ACTIVE_CONNECTION_STATE_DEACTIVATING)
+ && master_device
+ && (nm_device_get_state_reason(master_device)
+ == NM_DEVICE_STATE_REASON_NEW_ACTIVATION)) {
+ nm_active_connection_set_controller_dev(active, master_device);
+ } else {
+ nm_active_connection_set_controller(active, master_ac);
+ }
+
_LOGD(LOGD_CORE,
"Activation of '%s' depends on active connection %p %s",
nm_settings_connection_get_id(sett_conn),
--
2.45.1
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