mirror of
https://github.com/aljazceru/kata-containers.git
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5fb4768f83
Currently we sometimes pass it as a pointer and other times not. As a result, the view of sandbox across virtcontainers may not be the same and it costs extra memory copy each time we pass it by value. Fix it by ensuring sandbox is always passed by pointers. Fixes: #262 Signed-off-by: Peng Tao <bergwolf@gmail.com>
59 lines
1.5 KiB
Go
59 lines
1.5 KiB
Go
// Copyright (c) 2016 Intel Corporation
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//
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// SPDX-License-Identifier: Apache-2.0
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//
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package virtcontainers
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import (
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"github.com/sirupsen/logrus"
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)
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// cnm is a network implementation for the CNM plugin.
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type cnm struct {
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}
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func cnmLogger() *logrus.Entry {
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return virtLog.WithField("subsystem", "cnm")
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}
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// init initializes the network, setting a new network namespace for the CNM network.
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func (n *cnm) init(config NetworkConfig) (string, bool, error) {
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return initNetworkCommon(config)
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}
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// run runs a callback in the specified network namespace.
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func (n *cnm) run(networkNSPath string, cb func() error) error {
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return runNetworkCommon(networkNSPath, cb)
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}
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// add adds all needed interfaces inside the network namespace for the CNM network.
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func (n *cnm) add(sandbox *Sandbox, config NetworkConfig, netNsPath string, netNsCreated bool) (NetworkNamespace, error) {
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endpoints, err := createEndpointsFromScan(netNsPath, config)
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if err != nil {
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return NetworkNamespace{}, err
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}
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networkNS := NetworkNamespace{
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NetNsPath: netNsPath,
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NetNsCreated: netNsCreated,
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Endpoints: endpoints,
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}
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if err := addNetworkCommon(sandbox, &networkNS); err != nil {
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return NetworkNamespace{}, err
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}
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return networkNS, nil
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}
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// remove unbridges and deletes TAP interfaces. It also removes virtual network
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// interfaces and deletes the network namespace for the CNM network.
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func (n *cnm) remove(sandbox *Sandbox, networkNS NetworkNamespace) error {
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if err := removeNetworkCommon(networkNS); err != nil {
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return err
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}
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return deleteNetNS(networkNS.NetNsPath, true)
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}
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