[pve-devel] [PATCH container 2/2] api: fix permission check for guest net device without bridge

[Fiona Ebner]

As reported in the community forum [0], changing a guest's network
device definition would fail with an error for non-root users, when
it did not (yet) specify a bridge:
> no sdn vnet ID specified

Skip the call to check_vnet_access() if there is no bridge defined.
Note that editing a device to not use any bridge anymore still
requires permissions for the currently configured bridge even after
this change.

[0]: https://forum.proxmox.com/threads/173249/

Signed-off-by: Fiona Ebner <f.ebner at proxmox.com>
---
 src/PVE/LXC.pm | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/PVE/LXC.pm b/src/PVE/LXC.pm
index a445a85..89ccb54 100644
--- a/src/PVE/LXC.pm
+++ b/src/PVE/LXC.pm
@@ -1662,6 +1662,7 @@ sub check_bridge_access {
 
     my $net = PVE::LXC::Config->parse_lxc_network($raw);
     my ($bridge, $tag, $trunks) = $net->@{ 'bridge', 'tag', 'trunks' };
+    next if !defined($bridge); # no vnet to check for
     check_vnet_access($rpcenv, $authuser, $bridge, $tag, $trunks);
 
     return 1;
-- 
2.47.3