mirror of
https://github.com/netbirdio/gvisor.git
synced 2026-05-22 17:12:49 -07:00
Nayana Bidari
df9ba5fb67
This CL restores the listening connections when netstack s/r is enabled. The changes include: - New method as a workaround to replace the new routes and nics to the loaded stack after restore. - New Restore() for transport layer protocols to restore the protocol level background workers. - Adds afterLoad() method for fdbased processors. - Adds a test to verify listening connection is restored after checkpointing with netstack s/r enabled. - Few other changes to save restore fields to enable netstack s/r. PiperOrigin-RevId: 698453124
35 lines
1.0 KiB
Go
35 lines
1.0 KiB
Go
// Copyright 2018 The gVisor Authors.
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package netstack
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import (
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"context"
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"gvisor.dev/gvisor/pkg/tcpip/stack"
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)
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// afterLoad is invoked by stateify.
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func (s *Stack) afterLoad(ctx context.Context) {
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if s.IsSaveRestoreEnabled() {
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// This indicates that netstack s/r is enabled and the stack
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// should not be replaced with the new stack from context.
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return
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}
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s.Stack = stack.RestoreStackFromContext(ctx)
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if s.Stack == nil {
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panic("can't restore without netstack/tcpip/stack.Stack")
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}
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}
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