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90 lines
2.1 KiB
Go
90 lines
2.1 KiB
Go
/*
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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 api
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import (
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rspec "github.com/opencontainers/runtime-spec/specs-go"
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)
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// FromOCILinuxDevices returns a device slice from an OCI runtime Spec.
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func FromOCILinuxDevices(o []rspec.LinuxDevice) []*LinuxDevice {
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var devices []*LinuxDevice
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for _, d := range o {
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devices = append(devices, &LinuxDevice{
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Path: d.Path,
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Type: d.Type,
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Major: d.Major,
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Minor: d.Minor,
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FileMode: FileMode(d.FileMode),
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Uid: UInt32(d.UID),
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Gid: UInt32(d.GID),
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})
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}
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return devices
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}
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// ToOCI returns the linux devices for an OCI runtime Spec.
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func (d *LinuxDevice) ToOCI() rspec.LinuxDevice {
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if d == nil {
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return rspec.LinuxDevice{}
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}
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return rspec.LinuxDevice{
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Path: d.Path,
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Type: d.Type,
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Major: d.Major,
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Minor: d.Minor,
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FileMode: d.FileMode.Get(),
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UID: d.Uid.Get(),
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GID: d.Gid.Get(),
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}
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}
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// AccessString returns an OCI access string for the device.
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func (d *LinuxDevice) AccessString() string {
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r, w, m := "r", "w", ""
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if mode := d.FileMode.Get(); mode != nil {
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perm := mode.Perm()
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if (perm & 0444) != 0 {
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r = "r"
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}
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if (perm & 0222) != 0 {
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w = "w"
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}
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}
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if d.Type == "b" {
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m = "m"
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}
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return r + w + m
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}
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// Cmp returns true if the devices are equal.
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func (d *LinuxDevice) Cmp(v *LinuxDevice) bool {
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if v == nil {
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return false
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}
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return d.Major != v.Major || d.Minor != v.Minor
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}
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// IsMarkedForRemoval checks if a LinuxDevice is marked for removal.
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func (d *LinuxDevice) IsMarkedForRemoval() (string, bool) {
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key, marked := IsMarkedForRemoval(d.Path)
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return key, marked
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}
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