Messages in this thread Patch in this message | | | From | "jun.gu" <> | Subject | [PATCH net-next v3] net: openvswitch: Check vport net device name | Date | Wed, 17 Apr 2024 12:20:31 +0800 |
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Check vport net device name to ensure the provided name is not one of its aliases. This can avoid that ovs userspace create and destroy vport repeatedly.
Signed-off-by: Jun Gu <jun.gu@easystack.cn> --- net/openvswitch/vport-netdev.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c index 903537a5da22..7003e76b8172 100644 --- a/net/openvswitch/vport-netdev.c +++ b/net/openvswitch/vport-netdev.c @@ -78,7 +78,10 @@ struct vport *ovs_netdev_link(struct vport *vport, const char *name) int err; vport->dev = dev_get_by_name(ovs_dp_get_net(vport->dp), name); - if (!vport->dev) { + /* Ensure that the device exists and that the provided + * name is not one of its aliases. + */ + if ((!vport->dev) || strcmp(name, ovs_vport_name(vport))) { err = -ENODEV; goto error_free_vport; } -- 2.25.1
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