libgo/go/crypto/tls/alert.go

   1 // Copyright 2009 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package tls
   6
   7 import "strconv"
   8
   9 type alert uint8
  10
  11 const (
  12         // alert level
  13         alertLevelWarning = 1
  14         alertLevelError   = 2
  15 )
  16
  17 const (
  18         alertCloseNotify            alert = 0
  19         alertUnexpectedMessage      alert = 10
  20         alertBadRecordMAC           alert = 20
  21         alertDecryptionFailed       alert = 21
  22         alertRecordOverflow         alert = 22
  23         alertDecompressionFailure   alert = 30
  24         alertHandshakeFailure       alert = 40
  25         alertBadCertificate         alert = 42
  26         alertUnsupportedCertificate alert = 43
  27         alertCertificateRevoked     alert = 44
  28         alertCertificateExpired     alert = 45
  29         alertCertificateUnknown     alert = 46
  30         alertIllegalParameter       alert = 47
  31         alertUnknownCA              alert = 48
  32         alertAccessDenied           alert = 49
  33         alertDecodeError            alert = 50
  34         alertDecryptError           alert = 51
  35         alertProtocolVersion        alert = 70
  36         alertInsufficientSecurity   alert = 71
  37         alertInternalError          alert = 80
  38         alertUserCanceled           alert = 90
  39         alertNoRenegotiation        alert = 100
  40 )
  41
  42 var alertText = map[alert]string{
  43         alertCloseNotify:            "close notify",
  44         alertUnexpectedMessage:      "unexpected message",
  45         alertBadRecordMAC:           "bad record MAC",
  46         alertDecryptionFailed:       "decryption failed",
  47         alertRecordOverflow:         "record overflow",
  48         alertDecompressionFailure:   "decompression failure",
  49         alertHandshakeFailure:       "handshake failure",
  50         alertBadCertificate:         "bad certificate",
  51         alertUnsupportedCertificate: "unsupported certificate",
  52         alertCertificateRevoked:     "revoked certificate",
  53         alertCertificateExpired:     "expired certificate",
  54         alertCertificateUnknown:     "unknown certificate",
  55         alertIllegalParameter:       "illegal parameter",
  56         alertUnknownCA:              "unknown certificate authority",
  57         alertAccessDenied:           "access denied",
  58         alertDecodeError:            "error decoding message",
  59         alertDecryptError:           "error decrypting message",
  60         alertProtocolVersion:        "protocol version not supported",
  61         alertInsufficientSecurity:   "insufficient security level",
  62         alertInternalError:          "internal error",
  63         alertUserCanceled:           "user canceled",
  64         alertNoRenegotiation:        "no renegotiation",
  65 }
  66
  67 func (e alert) String() string {
  68         s, ok := alertText[e]
  69         if ok {
  70                 return s
  71         }
  72         return "alert(" + strconv.Itoa(int(e)) + ")"
  73 }
  74
  75 func (e alert) Error() string {
  76         return e.String()
  77 }