github.com/ooni/psiphon/tunnel-core@v0.0.0-20230105123940-fe12a24c96ee/oovendor/qtls-go1-17/alert.go (about)

     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 qtls
     6  
     7  import "strconv"
     8  
     9  type alert uint8
    10  
    11  // Alert is a TLS alert
    12  type Alert = alert
    13  
    14  const (
    15  	// alert level
    16  	alertLevelWarning = 1
    17  	alertLevelError   = 2
    18  )
    19  
    20  const (
    21  	alertCloseNotify                  alert = 0
    22  	alertUnexpectedMessage            alert = 10
    23  	alertBadRecordMAC                 alert = 20
    24  	alertDecryptionFailed             alert = 21
    25  	alertRecordOverflow               alert = 22
    26  	alertDecompressionFailure         alert = 30
    27  	alertHandshakeFailure             alert = 40
    28  	alertBadCertificate               alert = 42
    29  	alertUnsupportedCertificate       alert = 43
    30  	alertCertificateRevoked           alert = 44
    31  	alertCertificateExpired           alert = 45
    32  	alertCertificateUnknown           alert = 46
    33  	alertIllegalParameter             alert = 47
    34  	alertUnknownCA                    alert = 48
    35  	alertAccessDenied                 alert = 49
    36  	alertDecodeError                  alert = 50
    37  	alertDecryptError                 alert = 51
    38  	alertExportRestriction            alert = 60
    39  	alertProtocolVersion              alert = 70
    40  	alertInsufficientSecurity         alert = 71
    41  	alertInternalError                alert = 80
    42  	alertInappropriateFallback        alert = 86
    43  	alertUserCanceled                 alert = 90
    44  	alertNoRenegotiation              alert = 100
    45  	alertMissingExtension             alert = 109
    46  	alertUnsupportedExtension         alert = 110
    47  	alertCertificateUnobtainable      alert = 111
    48  	alertUnrecognizedName             alert = 112
    49  	alertBadCertificateStatusResponse alert = 113
    50  	alertBadCertificateHashValue      alert = 114
    51  	alertUnknownPSKIdentity           alert = 115
    52  	alertCertificateRequired          alert = 116
    53  	alertNoApplicationProtocol        alert = 120
    54  )
    55  
    56  var alertText = map[alert]string{
    57  	alertCloseNotify:                  "close notify",
    58  	alertUnexpectedMessage:            "unexpected message",
    59  	alertBadRecordMAC:                 "bad record MAC",
    60  	alertDecryptionFailed:             "decryption failed",
    61  	alertRecordOverflow:               "record overflow",
    62  	alertDecompressionFailure:         "decompression failure",
    63  	alertHandshakeFailure:             "handshake failure",
    64  	alertBadCertificate:               "bad certificate",
    65  	alertUnsupportedCertificate:       "unsupported certificate",
    66  	alertCertificateRevoked:           "revoked certificate",
    67  	alertCertificateExpired:           "expired certificate",
    68  	alertCertificateUnknown:           "unknown certificate",
    69  	alertIllegalParameter:             "illegal parameter",
    70  	alertUnknownCA:                    "unknown certificate authority",
    71  	alertAccessDenied:                 "access denied",
    72  	alertDecodeError:                  "error decoding message",
    73  	alertDecryptError:                 "error decrypting message",
    74  	alertExportRestriction:            "export restriction",
    75  	alertProtocolVersion:              "protocol version not supported",
    76  	alertInsufficientSecurity:         "insufficient security level",
    77  	alertInternalError:                "internal error",
    78  	alertInappropriateFallback:        "inappropriate fallback",
    79  	alertUserCanceled:                 "user canceled",
    80  	alertNoRenegotiation:              "no renegotiation",
    81  	alertMissingExtension:             "missing extension",
    82  	alertUnsupportedExtension:         "unsupported extension",
    83  	alertCertificateUnobtainable:      "certificate unobtainable",
    84  	alertUnrecognizedName:             "unrecognized name",
    85  	alertBadCertificateStatusResponse: "bad certificate status response",
    86  	alertBadCertificateHashValue:      "bad certificate hash value",
    87  	alertUnknownPSKIdentity:           "unknown PSK identity",
    88  	alertCertificateRequired:          "certificate required",
    89  	alertNoApplicationProtocol:        "no application protocol",
    90  }
    91  
    92  func (e alert) String() string {
    93  	s, ok := alertText[e]
    94  	if ok {
    95  		return "tls: " + s
    96  	}
    97  	return "tls: alert(" + strconv.Itoa(int(e)) + ")"
    98  }
    99  
   100  func (e alert) Error() string {
   101  	return e.String()
   102  }