github.com/metacubex/gvisor@v0.0.0-20240320004321-933faba989ec/pkg/tcpip/link/rawfile/errors.go (about)

     1  // Copyright 2018 The gVisor Authors.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  //go:build linux
    16  // +build linux
    17  
    18  package rawfile
    19  
    20  import (
    21  	"golang.org/x/sys/unix"
    22  	"github.com/metacubex/gvisor/pkg/tcpip"
    23  )
    24  
    25  const maxErrno = 134
    26  
    27  // TranslateErrno translate an errno from the syscall package into a
    28  // tcpip.Error.
    29  //
    30  // Valid, but unrecognized errnos will be translated to
    31  // *tcpip.ErrInvalidEndpointState (EINVAL).
    32  func TranslateErrno(e unix.Errno) tcpip.Error {
    33  	switch e {
    34  	case unix.EEXIST:
    35  		return &tcpip.ErrDuplicateAddress{}
    36  	case unix.ENETUNREACH:
    37  		return &tcpip.ErrHostUnreachable{}
    38  	case unix.EINVAL:
    39  		return &tcpip.ErrInvalidEndpointState{}
    40  	case unix.EALREADY:
    41  		return &tcpip.ErrAlreadyConnecting{}
    42  	case unix.EISCONN:
    43  		return &tcpip.ErrAlreadyConnected{}
    44  	case unix.EADDRINUSE:
    45  		return &tcpip.ErrPortInUse{}
    46  	case unix.EADDRNOTAVAIL:
    47  		return &tcpip.ErrBadLocalAddress{}
    48  	case unix.EPIPE:
    49  		return &tcpip.ErrClosedForSend{}
    50  	case unix.EWOULDBLOCK:
    51  		return &tcpip.ErrWouldBlock{}
    52  	case unix.ECONNREFUSED:
    53  		return &tcpip.ErrConnectionRefused{}
    54  	case unix.ETIMEDOUT:
    55  		return &tcpip.ErrTimeout{}
    56  	case unix.EINPROGRESS:
    57  		return &tcpip.ErrConnectStarted{}
    58  	case unix.EDESTADDRREQ:
    59  		return &tcpip.ErrDestinationRequired{}
    60  	case unix.ENOTSUP:
    61  		return &tcpip.ErrNotSupported{}
    62  	case unix.ENOTTY:
    63  		return &tcpip.ErrQueueSizeNotSupported{}
    64  	case unix.ENOTCONN:
    65  		return &tcpip.ErrNotConnected{}
    66  	case unix.ECONNRESET:
    67  		return &tcpip.ErrConnectionReset{}
    68  	case unix.ECONNABORTED:
    69  		return &tcpip.ErrConnectionAborted{}
    70  	case unix.EMSGSIZE:
    71  		return &tcpip.ErrMessageTooLong{}
    72  	case unix.ENOBUFS:
    73  		return &tcpip.ErrNoBufferSpace{}
    74  	default:
    75  		return &tcpip.ErrInvalidEndpointState{}
    76  	}
    77  }