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agent/device: Check for conflicting device updates

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For each device in the OCI spec we need to update it to reflect the guest
rather than the host.  We do this with additional device information
provided by the runtime.  There should only be one update for each device
though, if there are multiple, something has gone horribly wrong.

Detect and report this situation, for safety.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
David Gibson 2021-11-05 16:04:20 +11:00
parent f10e8c8165
commit f4982130e1
1 changed files with 9 additions and 1 deletions
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10
src/agent/src/device.rs
View File

@ -745,7 +745,15 @@ pub async fn add_devices(
for device in devices.iter() {
let update = add_device(device, sandbox).await?;
if let Some(dev_update) = update.dev {
dev_updates.insert(&device.container_path, dev_update);
if dev_updates
.insert(&device.container_path, dev_update)
.is_some()
{
return Err(anyhow!(
"Conflicting device updates for {}",
&device.container_path
));
}
}
}