mirror of
https://github.com/hanzoai/visor.git
synced 2026-09-24 17:04:14 +00:00
Ayush RanjanandShentubot
843a01e358
Earlier we could not save tcpip.Error objects in structs because upon restore the constant's address changes in netstack's error translation map and translating the error would panic because the map is based on the address of the tcpip.Error instead of the error itself. Now I made that translations map use the error message as key instead of the address. Added relevant synchronization mechanisms to protect the structure and initialize it upon restore. PiperOrigin-RevId: 346590485
117 lines
5.6 KiB
Go
117 lines
5.6 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 syserr
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import (
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"fmt"
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"gvisor.dev/gvisor/pkg/abi/linux"
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"gvisor.dev/gvisor/pkg/tcpip"
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)
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// Mapping for tcpip.Error types.
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var (
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ErrUnknownProtocol = New(tcpip.ErrUnknownProtocol.String(), linux.EINVAL)
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ErrUnknownNICID = New(tcpip.ErrUnknownNICID.String(), linux.ENODEV)
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ErrUnknownDevice = New(tcpip.ErrUnknownDevice.String(), linux.ENODEV)
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ErrUnknownProtocolOption = New(tcpip.ErrUnknownProtocolOption.String(), linux.ENOPROTOOPT)
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ErrDuplicateNICID = New(tcpip.ErrDuplicateNICID.String(), linux.EEXIST)
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ErrDuplicateAddress = New(tcpip.ErrDuplicateAddress.String(), linux.EEXIST)
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ErrBadLinkEndpoint = New(tcpip.ErrBadLinkEndpoint.String(), linux.EINVAL)
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ErrAlreadyBound = New(tcpip.ErrAlreadyBound.String(), linux.EINVAL)
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ErrInvalidEndpointState = New(tcpip.ErrInvalidEndpointState.String(), linux.EINVAL)
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ErrAlreadyConnecting = New(tcpip.ErrAlreadyConnecting.String(), linux.EALREADY)
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ErrNoPortAvailable = New(tcpip.ErrNoPortAvailable.String(), linux.EAGAIN)
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ErrPortInUse = New(tcpip.ErrPortInUse.String(), linux.EADDRINUSE)
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ErrBadLocalAddress = New(tcpip.ErrBadLocalAddress.String(), linux.EADDRNOTAVAIL)
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ErrClosedForSend = New(tcpip.ErrClosedForSend.String(), linux.EPIPE)
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ErrClosedForReceive = New(tcpip.ErrClosedForReceive.String(), nil)
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ErrTimeout = New(tcpip.ErrTimeout.String(), linux.ETIMEDOUT)
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ErrAborted = New(tcpip.ErrAborted.String(), linux.EPIPE)
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ErrConnectStarted = New(tcpip.ErrConnectStarted.String(), linux.EINPROGRESS)
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ErrDestinationRequired = New(tcpip.ErrDestinationRequired.String(), linux.EDESTADDRREQ)
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ErrNotSupported = New(tcpip.ErrNotSupported.String(), linux.EOPNOTSUPP)
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ErrQueueSizeNotSupported = New(tcpip.ErrQueueSizeNotSupported.String(), linux.ENOTTY)
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ErrNoSuchFile = New(tcpip.ErrNoSuchFile.String(), linux.ENOENT)
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ErrInvalidOptionValue = New(tcpip.ErrInvalidOptionValue.String(), linux.EINVAL)
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ErrBroadcastDisabled = New(tcpip.ErrBroadcastDisabled.String(), linux.EACCES)
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ErrNotPermittedNet = New(tcpip.ErrNotPermitted.String(), linux.EPERM)
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)
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var netstackErrorTranslations map[string]*Error
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func addErrMapping(tcpipErr *tcpip.Error, netstackErr *Error) {
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key := tcpipErr.String()
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if _, ok := netstackErrorTranslations[key]; ok {
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panic(fmt.Sprintf("duplicate error key: %s", key))
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}
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netstackErrorTranslations[key] = netstackErr
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}
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func init() {
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netstackErrorTranslations = make(map[string]*Error)
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addErrMapping(tcpip.ErrUnknownProtocol, ErrUnknownProtocol)
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addErrMapping(tcpip.ErrUnknownNICID, ErrUnknownNICID)
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addErrMapping(tcpip.ErrUnknownDevice, ErrUnknownDevice)
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addErrMapping(tcpip.ErrUnknownProtocolOption, ErrUnknownProtocolOption)
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addErrMapping(tcpip.ErrDuplicateNICID, ErrDuplicateNICID)
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addErrMapping(tcpip.ErrDuplicateAddress, ErrDuplicateAddress)
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addErrMapping(tcpip.ErrNoRoute, ErrNoRoute)
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addErrMapping(tcpip.ErrBadLinkEndpoint, ErrBadLinkEndpoint)
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addErrMapping(tcpip.ErrAlreadyBound, ErrAlreadyBound)
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addErrMapping(tcpip.ErrInvalidEndpointState, ErrInvalidEndpointState)
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addErrMapping(tcpip.ErrAlreadyConnecting, ErrAlreadyConnecting)
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addErrMapping(tcpip.ErrAlreadyConnected, ErrAlreadyConnected)
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addErrMapping(tcpip.ErrNoPortAvailable, ErrNoPortAvailable)
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addErrMapping(tcpip.ErrPortInUse, ErrPortInUse)
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addErrMapping(tcpip.ErrBadLocalAddress, ErrBadLocalAddress)
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addErrMapping(tcpip.ErrClosedForSend, ErrClosedForSend)
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addErrMapping(tcpip.ErrClosedForReceive, ErrClosedForReceive)
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addErrMapping(tcpip.ErrWouldBlock, ErrWouldBlock)
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addErrMapping(tcpip.ErrConnectionRefused, ErrConnectionRefused)
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addErrMapping(tcpip.ErrTimeout, ErrTimeout)
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addErrMapping(tcpip.ErrAborted, ErrAborted)
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addErrMapping(tcpip.ErrConnectStarted, ErrConnectStarted)
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addErrMapping(tcpip.ErrDestinationRequired, ErrDestinationRequired)
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addErrMapping(tcpip.ErrNotSupported, ErrNotSupported)
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addErrMapping(tcpip.ErrQueueSizeNotSupported, ErrQueueSizeNotSupported)
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addErrMapping(tcpip.ErrNotConnected, ErrNotConnected)
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addErrMapping(tcpip.ErrConnectionReset, ErrConnectionReset)
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addErrMapping(tcpip.ErrConnectionAborted, ErrConnectionAborted)
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addErrMapping(tcpip.ErrNoSuchFile, ErrNoSuchFile)
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addErrMapping(tcpip.ErrInvalidOptionValue, ErrInvalidOptionValue)
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addErrMapping(tcpip.ErrNoLinkAddress, ErrHostDown)
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addErrMapping(tcpip.ErrBadAddress, ErrBadAddress)
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addErrMapping(tcpip.ErrNetworkUnreachable, ErrNetworkUnreachable)
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addErrMapping(tcpip.ErrMessageTooLong, ErrMessageTooLong)
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addErrMapping(tcpip.ErrNoBufferSpace, ErrNoBufferSpace)
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addErrMapping(tcpip.ErrBroadcastDisabled, ErrBroadcastDisabled)
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addErrMapping(tcpip.ErrNotPermitted, ErrNotPermittedNet)
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addErrMapping(tcpip.ErrAddressFamilyNotSupported, ErrAddressFamilyNotSupported)
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}
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// TranslateNetstackError converts an error from the tcpip package to a sentry
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// internal error.
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func TranslateNetstackError(err *tcpip.Error) *Error {
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if err == nil {
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return nil
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}
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se, ok := netstackErrorTranslations[err.String()]
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if !ok {
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panic("Unknown error: " + err.String())
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}
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return se
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}
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