mirror of
https://github.com/clearlinux/rkt.git
synced 2026-08-28 13:25:39 +00:00
Jonathan Boulle
36 lines
1.2 KiB
Go
36 lines
1.2 KiB
Go
// Copyright 2015 The rkt Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package sys
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import (
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"os"
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"github.com/coreos/rkt/Godeps/_workspace/src/github.com/syndtr/gocapability/capability"
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)
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// HasChrootCapability checks if the current process has the CAP_SYS_CHROOT
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// capability
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func HasChrootCapability() bool {
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// Checking the capabilities should be enough, but in case there're
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// problem retrieving them, fallback checking for the effective uid
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// (hoping it hasn't dropped its CAP_SYS_CHROOT).
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caps, err := capability.NewPid(0)
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if err == nil {
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return caps.Get(capability.EFFECTIVE, capability.CAP_SYS_CHROOT)
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} else {
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return os.Geteuid() == 0
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}
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}
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