mirror of
https://github.com/NVIDIA/nvidia-container-toolkit
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134 lines
3.8 KiB
Go
134 lines
3.8 KiB
Go
// Copyright (c) 2013, Suryandaru Triandana <syndtr@gmail.com>
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// All rights reserved.
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//
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Package capability provides utilities for manipulating POSIX capabilities.
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package capability
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type Capabilities interface {
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// Get check whether a capability present in the given
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// capabilities set. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Get(which CapType, what Cap) bool
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// Empty check whether all capability bits of the given capabilities
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// set are zero. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Empty(which CapType) bool
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// Full check whether all capability bits of the given capabilities
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// set are one. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Full(which CapType) bool
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// Set sets capabilities of the given capabilities sets. The
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// 'which' value should be one or combination (OR'ed) of EFFECTIVE,
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Set(which CapType, caps ...Cap)
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// Unset unsets capabilities of the given capabilities sets. The
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// 'which' value should be one or combination (OR'ed) of EFFECTIVE,
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// PERMITTED, INHERITABLE, BOUNDING or AMBIENT.
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Unset(which CapType, caps ...Cap)
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// Fill sets all bits of the given capabilities kind to one. The
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// 'kind' value should be one or combination (OR'ed) of CAPS,
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// BOUNDS or AMBS.
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Fill(kind CapType)
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// Clear sets all bits of the given capabilities kind to zero. The
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// 'kind' value should be one or combination (OR'ed) of CAPS,
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// BOUNDS or AMBS.
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Clear(kind CapType)
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// String return current capabilities state of the given capabilities
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// set as string. The 'which' value should be one of EFFECTIVE,
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// PERMITTED, INHERITABLE BOUNDING or AMBIENT
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StringCap(which CapType) string
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// String return current capabilities state as string.
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String() string
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// Load load actual capabilities value. This will overwrite all
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// outstanding changes.
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Load() error
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// Apply apply the capabilities settings, so all changes will take
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// effect.
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Apply(kind CapType) error
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}
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// NewPid initializes a new Capabilities object for given pid when
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// it is nonzero, or for the current process if pid is 0.
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//
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// Deprecated: Replace with NewPid2. For example, replace:
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//
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// c, err := NewPid(0)
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// if err != nil {
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// return err
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// }
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//
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// with:
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//
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// c, err := NewPid2(0)
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// if err != nil {
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// return err
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// }
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// err = c.Load()
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// if err != nil {
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// return err
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// }
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func NewPid(pid int) (Capabilities, error) {
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c, err := newPid(pid)
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if err != nil {
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return c, err
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}
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err = c.Load()
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return c, err
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}
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// NewPid2 initializes a new Capabilities object for given pid when
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// it is nonzero, or for the current process if pid is 0. This
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// does not load the process's current capabilities; to do that you
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// must call Load explicitly.
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func NewPid2(pid int) (Capabilities, error) {
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return newPid(pid)
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}
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// NewFile initializes a new Capabilities object for given file path.
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//
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// Deprecated: Replace with NewFile2. For example, replace:
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//
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// c, err := NewFile(path)
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// if err != nil {
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// return err
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// }
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//
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// with:
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//
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// c, err := NewFile2(path)
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// if err != nil {
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// return err
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// }
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// err = c.Load()
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// if err != nil {
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// return err
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// }
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func NewFile(path string) (Capabilities, error) {
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c, err := newFile(path)
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if err != nil {
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return c, err
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}
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err = c.Load()
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return c, err
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}
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// NewFile2 creates a new initialized Capabilities object for given
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// file path. This does not load the process's current capabilities;
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// to do that you must call Load explicitly.
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func NewFile2(path string) (Capabilities, error) {
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return newFile(path)
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}
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