mirror of
https://github.com/hanzoai/visor.git
synced 2026-09-24 17:04:14 +00:00
Ryan El Kochta
5a965ab528
Implements POSIX ACLs for gVisor's overlayfs. - Adds plumbing to keep access and default ACLs in sync with the underlying filesystems, simliar to mode - Moves permission/filetype checking into helpers in posix_acl.go, used by both tmpfs and overlayfs - Updates the POSIX ACL tests to be parametrized by filesystem. The existing acl test suite runs both on overlayfs and on tmpfs This fixes journald not working for systemd user services.
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
// Copyright 2020 The gVisor 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 overlay
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import (
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"context"
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"gvisor.dev/gvisor/pkg/refs"
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"gvisor.dev/gvisor/pkg/sentry/vfs"
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)
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func (d *dentry) afterLoad(context.Context) {
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if d.refs.Load() != -1 {
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refs.Register(d)
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}
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}
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// saveParent is called by stateify.
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func (d *dentry) saveParent() *dentry {
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return d.parent.Load()
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}
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// loadParent is called by stateify.
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func (d *dentry) loadParent(_ context.Context, parent *dentry) {
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d.parent.Store(parent)
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}
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// saveAccessACL is called by stateify.
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func (d *dentry) saveAccessACL() *vfs.PosixACL {
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return d.accessACL.Load()
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}
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// loadAccessACL is called by stateify.
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func (d *dentry) loadAccessACL(_ context.Context, accessACL *vfs.PosixACL) {
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d.accessACL.Store(accessACL)
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}
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// saveDefaultACL is called by stateify.
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func (d *dentry) saveDefaultACL() *vfs.PosixACL {
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return d.defaultACL.Load()
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}
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// loadDefaultACL is called by stateify.
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func (d *dentry) loadDefaultACL(_ context.Context, defaultACL *vfs.PosixACL) {
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d.defaultACL.Store(defaultACL)
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}
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