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isolator_linux_specific.go
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isolator_linux_specific.go
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// Copyright 2015 The appc Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package types
import (
"encoding/json"
"errors"
)
const (
LinuxCapabilitiesRetainSetName = "os/linux/capabilities-retain-set"
LinuxCapabilitiesRevokeSetName = "os/linux/capabilities-remove-set"
)
var LinuxIsolatorNames = make(map[ACIdentifier]struct{})
func init() {
AddIsolatorName(LinuxCapabilitiesRetainSetName, LinuxIsolatorNames)
AddIsolatorName(LinuxCapabilitiesRevokeSetName, LinuxIsolatorNames)
AddIsolatorValueConstructor(LinuxCapabilitiesRetainSetName, NewLinuxCapabilitiesRetainSet)
AddIsolatorValueConstructor(LinuxCapabilitiesRevokeSetName, NewLinuxCapabilitiesRevokeSet)
}
type LinuxCapabilitiesSet interface {
Set() []LinuxCapability
AssertValid() error
}
type LinuxCapability string
type linuxCapabilitiesSetValue struct {
Set []LinuxCapability `json:"set"`
}
type linuxCapabilitiesSetBase struct {
val linuxCapabilitiesSetValue
}
func (l linuxCapabilitiesSetBase) AssertValid() error {
if len(l.val.Set) == 0 {
return errors.New("set must be non-empty")
}
return nil
}
func (l *linuxCapabilitiesSetBase) UnmarshalJSON(b []byte) error {
var v linuxCapabilitiesSetValue
err := json.Unmarshal(b, &v)
if err != nil {
return err
}
l.val = v
return err
}
func (l linuxCapabilitiesSetBase) Set() []LinuxCapability {
return l.val.Set
}
func NewLinuxCapabilitiesRetainSet() IsolatorValue {
return &LinuxCapabilitiesRetainSet{}
}
type LinuxCapabilitiesRetainSet struct {
linuxCapabilitiesSetBase
}
func NewLinuxCapabilitiesRevokeSet() IsolatorValue {
return &LinuxCapabilitiesRevokeSet{}
}
type LinuxCapabilitiesRevokeSet struct {
linuxCapabilitiesSetBase
}