2c4ae3b0a4
Содержимое пина, зафиксированного в go.mod sing-box-lx, одним коммитом без истории. Полная история SagerNet/gvisor — 1.45 ГБ и клонируется в каждой CI-джобе; наша дельта — одна вставка в одну функцию, история для неё не нужна. Module path github.com/sagernet/gvisor сохранён намеренно: на него опирается replace-директива суперпроекта. Патч поверх — отдельным коммитом, чтобы дельта читалась одним git show и переносилась на новый пин копированием. SPECS/TASKS/048-GVISOR_HANDSHAKE_NIL_CRASH
74 lines
2 KiB
Go
74 lines
2 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 packet
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import (
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"context"
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"fmt"
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"time"
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"github.com/sagernet/gvisor/pkg/tcpip"
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"github.com/sagernet/gvisor/pkg/tcpip/stack"
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)
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// saveReceivedAt is invoked by stateify.
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func (p *packet) saveReceivedAt() int64 {
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return p.receivedAt.UnixNano()
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}
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// loadReceivedAt is invoked by stateify.
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func (p *packet) loadReceivedAt(_ context.Context, nsec int64) {
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p.receivedAt = time.Unix(0, nsec)
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}
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// beforeSave is invoked by stateify.
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func (ep *endpoint) beforeSave() {
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ep.rcvMu.Lock()
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ep.rcvDisabled = true
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ep.rcvMu.Unlock()
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ep.stack.RegisterResumableEndpoint(ep)
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}
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// afterLoad is invoked by stateify.
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func (ep *endpoint) afterLoad(ctx context.Context) {
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if !ep.stack.IsSaveRestoreEnabled() {
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ep.mu.Lock()
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ep.stack = stack.RestoreStackFromContext(ctx)
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ep.mu.Unlock()
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}
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ep.stack.RegisterRestoredEndpoint(ep)
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}
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// Restore implements tcpip.RestoredEndpoint.Restore.
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func (ep *endpoint) Restore(_ *stack.Stack) {
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ep.mu.Lock()
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defer ep.mu.Unlock()
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ep.ops.InitHandler(ep, ep.stack, tcpip.GetStackSendBufferLimits, tcpip.GetStackReceiveBufferLimits)
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if err := ep.stack.RegisterPacketEndpoint(ep.boundNIC, ep.boundNetProto, ep); err != nil {
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panic(fmt.Sprintf("RegisterPacketEndpoint(%d, %d, _): %s", ep.boundNIC, ep.boundNetProto, err))
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}
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ep.rcvMu.Lock()
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ep.rcvDisabled = false
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ep.rcvMu.Unlock()
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}
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// Resume implements tcpip.ResumableEndpoint.Resume.
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func (ep *endpoint) Resume() {
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ep.rcvMu.Lock()
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defer ep.rcvMu.Unlock()
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ep.rcvDisabled = false
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}
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