65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
// Copyright (c) Huawei Technologies Co., Ltd. 2018-2019. All rights reserved.
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// syscontainer-tools is licensed under the Mulan PSL v1.
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// You can use this software according to the terms and conditions of the Mulan PSL v1.
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// You may obtain a copy of Mulan PSL v1 at:
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// http://license.coscl.org.cn/MulanPSL
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// THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
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// PURPOSE.
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// See the Mulan PSL v1 for more details.
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// Description: ns exec driver
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// Author: zhangwei
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// Create: 2018-01-18
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package nsexec
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import (
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"fmt"
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"os"
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"isula.org/syscontainer-tools/types"
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)
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var (
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// NSExecDriver is the nsexec driver which will use "c+go" to enter namespace
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NSExecDriver = "nsexec"
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// DefaultNSDriver is the default namespace driver name.
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DefaultNSDriver = NSExecDriver
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)
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// NsDriver is the namespace driver interface
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type NsDriver interface {
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// Add device to container.
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AddDevice(pid string, device *types.Device, force bool) error
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// Remove device from container.
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RemoveDevice(pid string, device *types.Device) error
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// Add a bind to container.
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AddBind(pid string, bind *types.Bind) error
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// Remove a bind from container.
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RemoveBind(pid string, bind *types.Bind) error
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// Add a transfer base for sharing
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AddTransferBase(pid string, bind *types.Bind) error
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// Update sysctl for userns enabled container
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UpdateSysctl(pid string, sysctl *types.Sysctl) error
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// Mount remount /dev to remove nodev option for userns enabled container
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Mount(pid string, mount *types.Mount) error
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}
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// NewNsDriver creates the namespace driver by name
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func NewNsDriver(name string) (NsDriver, error) {
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switch name {
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case NSExecDriver:
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return NewNSExecDriver(), nil
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}
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return nil, fmt.Errorf("Ns device driver (%s) not supported", name)
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}
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// NewDefaultNsDriver creates the default namespace driver
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func NewDefaultNsDriver() NsDriver {
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drv, err := NewNsDriver(DefaultNSDriver)
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if err != nil {
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fmt.Fprintln(os.Stderr, err)
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}
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return drv
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}
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