[pdm-devel] [PATCH proxmox-datacenter-manager 2/3] api: privileged: fix fchownat call

[Stefan Hanreich]

When starting the privileged API, the server would fail with the
following error messages:

Error: unable to set ownership for api socket '/run/proxmox-datacenter-manager/priv.sock' - EINVAL: Invalid argument

chown(2) only supports the AT_SYMLINK_NOFOLLOW, not AT_SYMLINK_FOLLOW
so this was probably a oversight. Pass empty flags to fchownat
instead.

Signed-off-by: Stefan Hanreich <s.hanreich at proxmox.com>
---
 server/src/bin/proxmox-datacenter-privileged-api.rs | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/server/src/bin/proxmox-datacenter-privileged-api.rs b/server/src/bin/proxmox-datacenter-privileged-api.rs
index 66033eb..bd2c6dd 100644
--- a/server/src/bin/proxmox-datacenter-privileged-api.rs
+++ b/server/src/bin/proxmox-datacenter-privileged-api.rs
@@ -161,16 +161,9 @@ async fn run() -> Result<(), Error> {
                 format_err!("unable to set mode for api socket '{sockpath:?}' - {err}")
             })?;
 
-            fchownat(
-                None,
-                sockpath,
-                None,
-                Some(api_user.gid),
-                AtFlags::AT_SYMLINK_FOLLOW,
-            )
-            .map_err(|err| {
-                format_err!("unable to set ownership for api socket '{sockpath}' - {err}")
-            })?;
+            fchownat(None, sockpath, None, Some(api_user.gid), AtFlags::empty()).map_err(
+                |err| format_err!("unable to set ownership for api socket '{sockpath}' - {err}"),
+            )?;
 
             log::info!("created socket, notifying readiness to systemd and starting API server");
 
-- 
2.47.2