b7f673790f
Allow rootless containers with privileged to mount devices that are accessible
(ignore permission errors in rootless mode).
This patch updates oci.getDevices() to ignore access denied errors on sub-
directories and files within the given path if the container is running with
userns enabled.
Note that these errors are _only_ ignored on paths _under_ the specified path,
and not the path itself, so if `HostDevices()` is used, and `/dev` itself is
not accessible, or `WithDevices()` is used to specify a device that is not
accessible, an error is still produced.
Tests were added, which includes a temporary workaround for compatibility
with Go 1.16 (we could decide to skip these tests on Go 1.16 instead).
To verify the patch in a container:
docker run --rm -v $(pwd):/go/src/github.com/containerd/containerd -w /go/src/github.com/containerd/containerd golang:1.17 sh -c 'go test -v -run TestHostDevices ./oci'
=== RUN TestHostDevicesOSReadDirFailure
--- PASS: TestHostDevicesOSReadDirFailure (0.00s)
=== RUN TestHostDevicesOSReadDirFailureInUserNS
--- PASS: TestHostDevicesOSReadDirFailureInUserNS (0.00s)
=== RUN TestHostDevicesDeviceFromPathFailure
--- PASS: TestHostDevicesDeviceFromPathFailure (0.00s)
=== RUN TestHostDevicesDeviceFromPathFailureInUserNS
--- PASS: TestHostDevicesDeviceFromPathFailureInUserNS (0.00s)
=== RUN TestHostDevicesAllValid
--- PASS: TestHostDevicesAllValid (0.00s)
PASS
ok github.com/containerd/containerd/oci 0.006s
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
25 lines
748 B
Go
25 lines
748 B
Go
//go:build go1.17 && !windows && !darwin
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// +build go1.17,!windows,!darwin
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/*
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Copyright The containerd Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package oci
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import "io/fs"
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var fileInfoToDirEntry = fs.FileInfoToDirEntry
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