diff options
Diffstat (limited to 'src/pkg/crypto/tls/handshake_messages.go')
| -rw-r--r-- | src/pkg/crypto/tls/handshake_messages.go | 1344 |
1 files changed, 0 insertions, 1344 deletions
diff --git a/src/pkg/crypto/tls/handshake_messages.go b/src/pkg/crypto/tls/handshake_messages.go deleted file mode 100644 index 7bcaa5eb9..000000000 --- a/src/pkg/crypto/tls/handshake_messages.go +++ /dev/null @@ -1,1344 +0,0 @@ -// Copyright 2009 The Go Authors. All rights reserved. -// Use of this source code is governed by a BSD-style -// license that can be found in the LICENSE file. - -package tls - -import "bytes" - -type clientHelloMsg struct { - raw []byte - vers uint16 - random []byte - sessionId []byte - cipherSuites []uint16 - compressionMethods []uint8 - nextProtoNeg bool - serverName string - ocspStapling bool - supportedCurves []CurveID - supportedPoints []uint8 - ticketSupported bool - sessionTicket []uint8 - signatureAndHashes []signatureAndHash - secureRenegotiation bool -} - -func (m *clientHelloMsg) equal(i interface{}) bool { - m1, ok := i.(*clientHelloMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - m.vers == m1.vers && - bytes.Equal(m.random, m1.random) && - bytes.Equal(m.sessionId, m1.sessionId) && - eqUint16s(m.cipherSuites, m1.cipherSuites) && - bytes.Equal(m.compressionMethods, m1.compressionMethods) && - m.nextProtoNeg == m1.nextProtoNeg && - m.serverName == m1.serverName && - m.ocspStapling == m1.ocspStapling && - eqCurveIDs(m.supportedCurves, m1.supportedCurves) && - bytes.Equal(m.supportedPoints, m1.supportedPoints) && - m.ticketSupported == m1.ticketSupported && - bytes.Equal(m.sessionTicket, m1.sessionTicket) && - eqSignatureAndHashes(m.signatureAndHashes, m1.signatureAndHashes) && - m.secureRenegotiation == m1.secureRenegotiation -} - -func (m *clientHelloMsg) marshal() []byte { - if m.raw != nil { - return m.raw - } - - length := 2 + 32 + 1 + len(m.sessionId) + 2 + len(m.cipherSuites)*2 + 1 + len(m.compressionMethods) - numExtensions := 0 - extensionsLength := 0 - if m.nextProtoNeg { - numExtensions++ - } - if m.ocspStapling { - extensionsLength += 1 + 2 + 2 - numExtensions++ - } - if len(m.serverName) > 0 { - extensionsLength += 5 + len(m.serverName) - numExtensions++ - } - if len(m.supportedCurves) > 0 { - extensionsLength += 2 + 2*len(m.supportedCurves) - numExtensions++ - } - if len(m.supportedPoints) > 0 { - extensionsLength += 1 + len(m.supportedPoints) - numExtensions++ - } - if m.ticketSupported { - extensionsLength += len(m.sessionTicket) - numExtensions++ - } - if len(m.signatureAndHashes) > 0 { - extensionsLength += 2 + 2*len(m.signatureAndHashes) - numExtensions++ - } - if m.secureRenegotiation { - extensionsLength += 1 - numExtensions++ - } - if numExtensions > 0 { - extensionsLength += 4 * numExtensions - length += 2 + extensionsLength - } - - x := make([]byte, 4+length) - x[0] = typeClientHello - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - x[4] = uint8(m.vers >> 8) - x[5] = uint8(m.vers) - copy(x[6:38], m.random) - x[38] = uint8(len(m.sessionId)) - copy(x[39:39+len(m.sessionId)], m.sessionId) - y := x[39+len(m.sessionId):] - y[0] = uint8(len(m.cipherSuites) >> 7) - y[1] = uint8(len(m.cipherSuites) << 1) - for i, suite := range m.cipherSuites { - y[2+i*2] = uint8(suite >> 8) - y[3+i*2] = uint8(suite) - } - z := y[2+len(m.cipherSuites)*2:] - z[0] = uint8(len(m.compressionMethods)) - copy(z[1:], m.compressionMethods) - - z = z[1+len(m.compressionMethods):] - if numExtensions > 0 { - z[0] = byte(extensionsLength >> 8) - z[1] = byte(extensionsLength) - z = z[2:] - } - if m.nextProtoNeg { - z[0] = byte(extensionNextProtoNeg >> 8) - z[1] = byte(extensionNextProtoNeg & 0xff) - // The length is always 0 - z = z[4:] - } - if len(m.serverName) > 0 { - z[0] = byte(extensionServerName >> 8) - z[1] = byte(extensionServerName & 0xff) - l := len(m.serverName) + 5 - z[2] = byte(l >> 8) - z[3] = byte(l) - z = z[4:] - - // RFC 3546, section 3.1 - // - // struct { - // NameType name_type; - // select (name_type) { - // case host_name: HostName; - // } name; - // } ServerName; - // - // enum { - // host_name(0), (255) - // } NameType; - // - // opaque HostName<1..2^16-1>; - // - // struct { - // ServerName server_name_list<1..2^16-1> - // } ServerNameList; - - z[0] = byte((len(m.serverName) + 3) >> 8) - z[1] = byte(len(m.serverName) + 3) - z[3] = byte(len(m.serverName) >> 8) - z[4] = byte(len(m.serverName)) - copy(z[5:], []byte(m.serverName)) - z = z[l:] - } - if m.ocspStapling { - // RFC 4366, section 3.6 - z[0] = byte(extensionStatusRequest >> 8) - z[1] = byte(extensionStatusRequest) - z[2] = 0 - z[3] = 5 - z[4] = 1 // OCSP type - // Two zero valued uint16s for the two lengths. - z = z[9:] - } - if len(m.supportedCurves) > 0 { - // http://tools.ietf.org/html/rfc4492#section-5.5.1 - z[0] = byte(extensionSupportedCurves >> 8) - z[1] = byte(extensionSupportedCurves) - l := 2 + 2*len(m.supportedCurves) - z[2] = byte(l >> 8) - z[3] = byte(l) - l -= 2 - z[4] = byte(l >> 8) - z[5] = byte(l) - z = z[6:] - for _, curve := range m.supportedCurves { - z[0] = byte(curve >> 8) - z[1] = byte(curve) - z = z[2:] - } - } - if len(m.supportedPoints) > 0 { - // http://tools.ietf.org/html/rfc4492#section-5.5.2 - z[0] = byte(extensionSupportedPoints >> 8) - z[1] = byte(extensionSupportedPoints) - l := 1 + len(m.supportedPoints) - z[2] = byte(l >> 8) - z[3] = byte(l) - l-- - z[4] = byte(l) - z = z[5:] - for _, pointFormat := range m.supportedPoints { - z[0] = byte(pointFormat) - z = z[1:] - } - } - if m.ticketSupported { - // http://tools.ietf.org/html/rfc5077#section-3.2 - z[0] = byte(extensionSessionTicket >> 8) - z[1] = byte(extensionSessionTicket) - l := len(m.sessionTicket) - z[2] = byte(l >> 8) - z[3] = byte(l) - z = z[4:] - copy(z, m.sessionTicket) - z = z[len(m.sessionTicket):] - } - if len(m.signatureAndHashes) > 0 { - // https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1 - z[0] = byte(extensionSignatureAlgorithms >> 8) - z[1] = byte(extensionSignatureAlgorithms) - l := 2 + 2*len(m.signatureAndHashes) - z[2] = byte(l >> 8) - z[3] = byte(l) - z = z[4:] - - l -= 2 - z[0] = byte(l >> 8) - z[1] = byte(l) - z = z[2:] - for _, sigAndHash := range m.signatureAndHashes { - z[0] = sigAndHash.hash - z[1] = sigAndHash.signature - z = z[2:] - } - } - if m.secureRenegotiation { - z[0] = byte(extensionRenegotiationInfo >> 8) - z[1] = byte(extensionRenegotiationInfo & 0xff) - z[2] = 0 - z[3] = 1 - z = z[5:] - } - - m.raw = x - - return x -} - -func (m *clientHelloMsg) unmarshal(data []byte) bool { - if len(data) < 42 { - return false - } - m.raw = data - m.vers = uint16(data[4])<<8 | uint16(data[5]) - m.random = data[6:38] - sessionIdLen := int(data[38]) - if sessionIdLen > 32 || len(data) < 39+sessionIdLen { - return false - } - m.sessionId = data[39 : 39+sessionIdLen] - data = data[39+sessionIdLen:] - if len(data) < 2 { - return false - } - // cipherSuiteLen is the number of bytes of cipher suite numbers. Since - // they are uint16s, the number must be even. - cipherSuiteLen := int(data[0])<<8 | int(data[1]) - if cipherSuiteLen%2 == 1 || len(data) < 2+cipherSuiteLen { - return false - } - numCipherSuites := cipherSuiteLen / 2 - m.cipherSuites = make([]uint16, numCipherSuites) - for i := 0; i < numCipherSuites; i++ { - m.cipherSuites[i] = uint16(data[2+2*i])<<8 | uint16(data[3+2*i]) - if m.cipherSuites[i] == scsvRenegotiation { - m.secureRenegotiation = true - } - } - data = data[2+cipherSuiteLen:] - if len(data) < 1 { - return false - } - compressionMethodsLen := int(data[0]) - if len(data) < 1+compressionMethodsLen { - return false - } - m.compressionMethods = data[1 : 1+compressionMethodsLen] - - data = data[1+compressionMethodsLen:] - - m.nextProtoNeg = false - m.serverName = "" - m.ocspStapling = false - m.ticketSupported = false - m.sessionTicket = nil - m.signatureAndHashes = nil - - if len(data) == 0 { - // ClientHello is optionally followed by extension data - return true - } - if len(data) < 2 { - return false - } - - extensionsLength := int(data[0])<<8 | int(data[1]) - data = data[2:] - if extensionsLength != len(data) { - return false - } - - for len(data) != 0 { - if len(data) < 4 { - return false - } - extension := uint16(data[0])<<8 | uint16(data[1]) - length := int(data[2])<<8 | int(data[3]) - data = data[4:] - if len(data) < length { - return false - } - - switch extension { - case extensionServerName: - if length < 2 { - return false - } - numNames := int(data[0])<<8 | int(data[1]) - d := data[2:] - for i := 0; i < numNames; i++ { - if len(d) < 3 { - return false - } - nameType := d[0] - nameLen := int(d[1])<<8 | int(d[2]) - d = d[3:] - if len(d) < nameLen { - return false - } - if nameType == 0 { - m.serverName = string(d[0:nameLen]) - break - } - d = d[nameLen:] - } - case extensionNextProtoNeg: - if length > 0 { - return false - } - m.nextProtoNeg = true - case extensionStatusRequest: - m.ocspStapling = length > 0 && data[0] == statusTypeOCSP - case extensionSupportedCurves: - // http://tools.ietf.org/html/rfc4492#section-5.5.1 - if length < 2 { - return false - } - l := int(data[0])<<8 | int(data[1]) - if l%2 == 1 || length != l+2 { - return false - } - numCurves := l / 2 - m.supportedCurves = make([]CurveID, numCurves) - d := data[2:] - for i := 0; i < numCurves; i++ { - m.supportedCurves[i] = CurveID(d[0])<<8 | CurveID(d[1]) - d = d[2:] - } - case extensionSupportedPoints: - // http://tools.ietf.org/html/rfc4492#section-5.5.2 - if length < 1 { - return false - } - l := int(data[0]) - if length != l+1 { - return false - } - m.supportedPoints = make([]uint8, l) - copy(m.supportedPoints, data[1:]) - case extensionSessionTicket: - // http://tools.ietf.org/html/rfc5077#section-3.2 - m.ticketSupported = true - m.sessionTicket = data[:length] - case extensionSignatureAlgorithms: - // https://tools.ietf.org/html/rfc5246#section-7.4.1.4.1 - if length < 2 || length&1 != 0 { - return false - } - l := int(data[0])<<8 | int(data[1]) - if l != length-2 { - return false - } - n := l / 2 - d := data[2:] - m.signatureAndHashes = make([]signatureAndHash, n) - for i := range m.signatureAndHashes { - m.signatureAndHashes[i].hash = d[0] - m.signatureAndHashes[i].signature = d[1] - d = d[2:] - } - case extensionRenegotiationInfo + 1: - if length != 1 || data[0] != 0 { - return false - } - m.secureRenegotiation = true - } - data = data[length:] - } - - return true -} - -type serverHelloMsg struct { - raw []byte - vers uint16 - random []byte - sessionId []byte - cipherSuite uint16 - compressionMethod uint8 - nextProtoNeg bool - nextProtos []string - ocspStapling bool - ticketSupported bool - secureRenegotiation bool -} - -func (m *serverHelloMsg) equal(i interface{}) bool { - m1, ok := i.(*serverHelloMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - m.vers == m1.vers && - bytes.Equal(m.random, m1.random) && - bytes.Equal(m.sessionId, m1.sessionId) && - m.cipherSuite == m1.cipherSuite && - m.compressionMethod == m1.compressionMethod && - m.nextProtoNeg == m1.nextProtoNeg && - eqStrings(m.nextProtos, m1.nextProtos) && - m.ocspStapling == m1.ocspStapling && - m.ticketSupported == m1.ticketSupported && - m.secureRenegotiation == m1.secureRenegotiation -} - -func (m *serverHelloMsg) marshal() []byte { - if m.raw != nil { - return m.raw - } - - length := 38 + len(m.sessionId) - numExtensions := 0 - extensionsLength := 0 - - nextProtoLen := 0 - if m.nextProtoNeg { - numExtensions++ - for _, v := range m.nextProtos { - nextProtoLen += len(v) - } - nextProtoLen += len(m.nextProtos) - extensionsLength += nextProtoLen - } - if m.ocspStapling { - numExtensions++ - } - if m.ticketSupported { - numExtensions++ - } - if m.secureRenegotiation { - extensionsLength += 1 - numExtensions++ - } - if numExtensions > 0 { - extensionsLength += 4 * numExtensions - length += 2 + extensionsLength - } - - x := make([]byte, 4+length) - x[0] = typeServerHello - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - x[4] = uint8(m.vers >> 8) - x[5] = uint8(m.vers) - copy(x[6:38], m.random) - x[38] = uint8(len(m.sessionId)) - copy(x[39:39+len(m.sessionId)], m.sessionId) - z := x[39+len(m.sessionId):] - z[0] = uint8(m.cipherSuite >> 8) - z[1] = uint8(m.cipherSuite) - z[2] = uint8(m.compressionMethod) - - z = z[3:] - if numExtensions > 0 { - z[0] = byte(extensionsLength >> 8) - z[1] = byte(extensionsLength) - z = z[2:] - } - if m.nextProtoNeg { - z[0] = byte(extensionNextProtoNeg >> 8) - z[1] = byte(extensionNextProtoNeg & 0xff) - z[2] = byte(nextProtoLen >> 8) - z[3] = byte(nextProtoLen) - z = z[4:] - - for _, v := range m.nextProtos { - l := len(v) - if l > 255 { - l = 255 - } - z[0] = byte(l) - copy(z[1:], []byte(v[0:l])) - z = z[1+l:] - } - } - if m.ocspStapling { - z[0] = byte(extensionStatusRequest >> 8) - z[1] = byte(extensionStatusRequest) - z = z[4:] - } - if m.ticketSupported { - z[0] = byte(extensionSessionTicket >> 8) - z[1] = byte(extensionSessionTicket) - z = z[4:] - } - if m.secureRenegotiation { - z[0] = byte(extensionRenegotiationInfo >> 8) - z[1] = byte(extensionRenegotiationInfo & 0xff) - z[2] = 0 - z[3] = 1 - z = z[5:] - } - - m.raw = x - - return x -} - -func (m *serverHelloMsg) unmarshal(data []byte) bool { - if len(data) < 42 { - return false - } - m.raw = data - m.vers = uint16(data[4])<<8 | uint16(data[5]) - m.random = data[6:38] - sessionIdLen := int(data[38]) - if sessionIdLen > 32 || len(data) < 39+sessionIdLen { - return false - } - m.sessionId = data[39 : 39+sessionIdLen] - data = data[39+sessionIdLen:] - if len(data) < 3 { - return false - } - m.cipherSuite = uint16(data[0])<<8 | uint16(data[1]) - m.compressionMethod = data[2] - data = data[3:] - - m.nextProtoNeg = false - m.nextProtos = nil - m.ocspStapling = false - m.ticketSupported = false - - if len(data) == 0 { - // ServerHello is optionally followed by extension data - return true - } - if len(data) < 2 { - return false - } - - extensionsLength := int(data[0])<<8 | int(data[1]) - data = data[2:] - if len(data) != extensionsLength { - return false - } - - for len(data) != 0 { - if len(data) < 4 { - return false - } - extension := uint16(data[0])<<8 | uint16(data[1]) - length := int(data[2])<<8 | int(data[3]) - data = data[4:] - if len(data) < length { - return false - } - - switch extension { - case extensionNextProtoNeg: - m.nextProtoNeg = true - d := data[:length] - for len(d) > 0 { - l := int(d[0]) - d = d[1:] - if l == 0 || l > len(d) { - return false - } - m.nextProtos = append(m.nextProtos, string(d[:l])) - d = d[l:] - } - case extensionStatusRequest: - if length > 0 { - return false - } - m.ocspStapling = true - case extensionSessionTicket: - if length > 0 { - return false - } - m.ticketSupported = true - case extensionRenegotiationInfo: - if length != 1 || data[0] != 0 { - return false - } - m.secureRenegotiation = true - } - data = data[length:] - } - - return true -} - -type certificateMsg struct { - raw []byte - certificates [][]byte -} - -func (m *certificateMsg) equal(i interface{}) bool { - m1, ok := i.(*certificateMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - eqByteSlices(m.certificates, m1.certificates) -} - -func (m *certificateMsg) marshal() (x []byte) { - if m.raw != nil { - return m.raw - } - - var i int - for _, slice := range m.certificates { - i += len(slice) - } - - length := 3 + 3*len(m.certificates) + i - x = make([]byte, 4+length) - x[0] = typeCertificate - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - - certificateOctets := length - 3 - x[4] = uint8(certificateOctets >> 16) - x[5] = uint8(certificateOctets >> 8) - x[6] = uint8(certificateOctets) - - y := x[7:] - for _, slice := range m.certificates { - y[0] = uint8(len(slice) >> 16) - y[1] = uint8(len(slice) >> 8) - y[2] = uint8(len(slice)) - copy(y[3:], slice) - y = y[3+len(slice):] - } - - m.raw = x - return -} - -func (m *certificateMsg) unmarshal(data []byte) bool { - if len(data) < 7 { - return false - } - - m.raw = data - certsLen := uint32(data[4])<<16 | uint32(data[5])<<8 | uint32(data[6]) - if uint32(len(data)) != certsLen+7 { - return false - } - - numCerts := 0 - d := data[7:] - for certsLen > 0 { - if len(d) < 4 { - return false - } - certLen := uint32(d[0])<<16 | uint32(d[1])<<8 | uint32(d[2]) - if uint32(len(d)) < 3+certLen { - return false - } - d = d[3+certLen:] - certsLen -= 3 + certLen - numCerts++ - } - - m.certificates = make([][]byte, numCerts) - d = data[7:] - for i := 0; i < numCerts; i++ { - certLen := uint32(d[0])<<16 | uint32(d[1])<<8 | uint32(d[2]) - m.certificates[i] = d[3 : 3+certLen] - d = d[3+certLen:] - } - - return true -} - -type serverKeyExchangeMsg struct { - raw []byte - key []byte -} - -func (m *serverKeyExchangeMsg) equal(i interface{}) bool { - m1, ok := i.(*serverKeyExchangeMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - bytes.Equal(m.key, m1.key) -} - -func (m *serverKeyExchangeMsg) marshal() []byte { - if m.raw != nil { - return m.raw - } - length := len(m.key) - x := make([]byte, length+4) - x[0] = typeServerKeyExchange - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - copy(x[4:], m.key) - - m.raw = x - return x -} - -func (m *serverKeyExchangeMsg) unmarshal(data []byte) bool { - m.raw = data - if len(data) < 4 { - return false - } - m.key = data[4:] - return true -} - -type certificateStatusMsg struct { - raw []byte - statusType uint8 - response []byte -} - -func (m *certificateStatusMsg) equal(i interface{}) bool { - m1, ok := i.(*certificateStatusMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - m.statusType == m1.statusType && - bytes.Equal(m.response, m1.response) -} - -func (m *certificateStatusMsg) marshal() []byte { - if m.raw != nil { - return m.raw - } - - var x []byte - if m.statusType == statusTypeOCSP { - x = make([]byte, 4+4+len(m.response)) - x[0] = typeCertificateStatus - l := len(m.response) + 4 - x[1] = byte(l >> 16) - x[2] = byte(l >> 8) - x[3] = byte(l) - x[4] = statusTypeOCSP - - l -= 4 - x[5] = byte(l >> 16) - x[6] = byte(l >> 8) - x[7] = byte(l) - copy(x[8:], m.response) - } else { - x = []byte{typeCertificateStatus, 0, 0, 1, m.statusType} - } - - m.raw = x - return x -} - -func (m *certificateStatusMsg) unmarshal(data []byte) bool { - m.raw = data - if len(data) < 5 { - return false - } - m.statusType = data[4] - - m.response = nil - if m.statusType == statusTypeOCSP { - if len(data) < 8 { - return false - } - respLen := uint32(data[5])<<16 | uint32(data[6])<<8 | uint32(data[7]) - if uint32(len(data)) != 4+4+respLen { - return false - } - m.response = data[8:] - } - return true -} - -type serverHelloDoneMsg struct{} - -func (m *serverHelloDoneMsg) equal(i interface{}) bool { - _, ok := i.(*serverHelloDoneMsg) - return ok -} - -func (m *serverHelloDoneMsg) marshal() []byte { - x := make([]byte, 4) - x[0] = typeServerHelloDone - return x -} - -func (m *serverHelloDoneMsg) unmarshal(data []byte) bool { - return len(data) == 4 -} - -type clientKeyExchangeMsg struct { - raw []byte - ciphertext []byte -} - -func (m *clientKeyExchangeMsg) equal(i interface{}) bool { - m1, ok := i.(*clientKeyExchangeMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - bytes.Equal(m.ciphertext, m1.ciphertext) -} - -func (m *clientKeyExchangeMsg) marshal() []byte { - if m.raw != nil { - return m.raw - } - length := len(m.ciphertext) - x := make([]byte, length+4) - x[0] = typeClientKeyExchange - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - copy(x[4:], m.ciphertext) - - m.raw = x - return x -} - -func (m *clientKeyExchangeMsg) unmarshal(data []byte) bool { - m.raw = data - if len(data) < 4 { - return false - } - l := int(data[1])<<16 | int(data[2])<<8 | int(data[3]) - if l != len(data)-4 { - return false - } - m.ciphertext = data[4:] - return true -} - -type finishedMsg struct { - raw []byte - verifyData []byte -} - -func (m *finishedMsg) equal(i interface{}) bool { - m1, ok := i.(*finishedMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - bytes.Equal(m.verifyData, m1.verifyData) -} - -func (m *finishedMsg) marshal() (x []byte) { - if m.raw != nil { - return m.raw - } - - x = make([]byte, 4+len(m.verifyData)) - x[0] = typeFinished - x[3] = byte(len(m.verifyData)) - copy(x[4:], m.verifyData) - m.raw = x - return -} - -func (m *finishedMsg) unmarshal(data []byte) bool { - m.raw = data - if len(data) < 4 { - return false - } - m.verifyData = data[4:] - return true -} - -type nextProtoMsg struct { - raw []byte - proto string -} - -func (m *nextProtoMsg) equal(i interface{}) bool { - m1, ok := i.(*nextProtoMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - m.proto == m1.proto -} - -func (m *nextProtoMsg) marshal() []byte { - if m.raw != nil { - return m.raw - } - l := len(m.proto) - if l > 255 { - l = 255 - } - - padding := 32 - (l+2)%32 - length := l + padding + 2 - x := make([]byte, length+4) - x[0] = typeNextProtocol - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - - y := x[4:] - y[0] = byte(l) - copy(y[1:], []byte(m.proto[0:l])) - y = y[1+l:] - y[0] = byte(padding) - - m.raw = x - - return x -} - -func (m *nextProtoMsg) unmarshal(data []byte) bool { - m.raw = data - - if len(data) < 5 { - return false - } - data = data[4:] - protoLen := int(data[0]) - data = data[1:] - if len(data) < protoLen { - return false - } - m.proto = string(data[0:protoLen]) - data = data[protoLen:] - - if len(data) < 1 { - return false - } - paddingLen := int(data[0]) - data = data[1:] - if len(data) != paddingLen { - return false - } - - return true -} - -type certificateRequestMsg struct { - raw []byte - // hasSignatureAndHash indicates whether this message includes a list - // of signature and hash functions. This change was introduced with TLS - // 1.2. - hasSignatureAndHash bool - - certificateTypes []byte - signatureAndHashes []signatureAndHash - certificateAuthorities [][]byte -} - -func (m *certificateRequestMsg) equal(i interface{}) bool { - m1, ok := i.(*certificateRequestMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - bytes.Equal(m.certificateTypes, m1.certificateTypes) && - eqByteSlices(m.certificateAuthorities, m1.certificateAuthorities) && - eqSignatureAndHashes(m.signatureAndHashes, m1.signatureAndHashes) -} - -func (m *certificateRequestMsg) marshal() (x []byte) { - if m.raw != nil { - return m.raw - } - - // See http://tools.ietf.org/html/rfc4346#section-7.4.4 - length := 1 + len(m.certificateTypes) + 2 - casLength := 0 - for _, ca := range m.certificateAuthorities { - casLength += 2 + len(ca) - } - length += casLength - - if m.hasSignatureAndHash { - length += 2 + 2*len(m.signatureAndHashes) - } - - x = make([]byte, 4+length) - x[0] = typeCertificateRequest - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - - x[4] = uint8(len(m.certificateTypes)) - - copy(x[5:], m.certificateTypes) - y := x[5+len(m.certificateTypes):] - - if m.hasSignatureAndHash { - n := len(m.signatureAndHashes) * 2 - y[0] = uint8(n >> 8) - y[1] = uint8(n) - y = y[2:] - for _, sigAndHash := range m.signatureAndHashes { - y[0] = sigAndHash.hash - y[1] = sigAndHash.signature - y = y[2:] - } - } - - y[0] = uint8(casLength >> 8) - y[1] = uint8(casLength) - y = y[2:] - for _, ca := range m.certificateAuthorities { - y[0] = uint8(len(ca) >> 8) - y[1] = uint8(len(ca)) - y = y[2:] - copy(y, ca) - y = y[len(ca):] - } - - m.raw = x - return -} - -func (m *certificateRequestMsg) unmarshal(data []byte) bool { - m.raw = data - - if len(data) < 5 { - return false - } - - length := uint32(data[1])<<16 | uint32(data[2])<<8 | uint32(data[3]) - if uint32(len(data))-4 != length { - return false - } - - numCertTypes := int(data[4]) - data = data[5:] - if numCertTypes == 0 || len(data) <= numCertTypes { - return false - } - - m.certificateTypes = make([]byte, numCertTypes) - if copy(m.certificateTypes, data) != numCertTypes { - return false - } - - data = data[numCertTypes:] - - if m.hasSignatureAndHash { - if len(data) < 2 { - return false - } - sigAndHashLen := uint16(data[0])<<8 | uint16(data[1]) - data = data[2:] - if sigAndHashLen&1 != 0 { - return false - } - if len(data) < int(sigAndHashLen) { - return false - } - numSigAndHash := sigAndHashLen / 2 - m.signatureAndHashes = make([]signatureAndHash, numSigAndHash) - for i := range m.signatureAndHashes { - m.signatureAndHashes[i].hash = data[0] - m.signatureAndHashes[i].signature = data[1] - data = data[2:] - } - } - - if len(data) < 2 { - return false - } - casLength := uint16(data[0])<<8 | uint16(data[1]) - data = data[2:] - if len(data) < int(casLength) { - return false - } - cas := make([]byte, casLength) - copy(cas, data) - data = data[casLength:] - - m.certificateAuthorities = nil - for len(cas) > 0 { - if len(cas) < 2 { - return false - } - caLen := uint16(cas[0])<<8 | uint16(cas[1]) - cas = cas[2:] - - if len(cas) < int(caLen) { - return false - } - - m.certificateAuthorities = append(m.certificateAuthorities, cas[:caLen]) - cas = cas[caLen:] - } - if len(data) > 0 { - return false - } - - return true -} - -type certificateVerifyMsg struct { - raw []byte - hasSignatureAndHash bool - signatureAndHash signatureAndHash - signature []byte -} - -func (m *certificateVerifyMsg) equal(i interface{}) bool { - m1, ok := i.(*certificateVerifyMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - m.hasSignatureAndHash == m1.hasSignatureAndHash && - m.signatureAndHash.hash == m1.signatureAndHash.hash && - m.signatureAndHash.signature == m1.signatureAndHash.signature && - bytes.Equal(m.signature, m1.signature) -} - -func (m *certificateVerifyMsg) marshal() (x []byte) { - if m.raw != nil { - return m.raw - } - - // See http://tools.ietf.org/html/rfc4346#section-7.4.8 - siglength := len(m.signature) - length := 2 + siglength - if m.hasSignatureAndHash { - length += 2 - } - x = make([]byte, 4+length) - x[0] = typeCertificateVerify - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - y := x[4:] - if m.hasSignatureAndHash { - y[0] = m.signatureAndHash.hash - y[1] = m.signatureAndHash.signature - y = y[2:] - } - y[0] = uint8(siglength >> 8) - y[1] = uint8(siglength) - copy(y[2:], m.signature) - - m.raw = x - - return -} - -func (m *certificateVerifyMsg) unmarshal(data []byte) bool { - m.raw = data - - if len(data) < 6 { - return false - } - - length := uint32(data[1])<<16 | uint32(data[2])<<8 | uint32(data[3]) - if uint32(len(data))-4 != length { - return false - } - - data = data[4:] - if m.hasSignatureAndHash { - m.signatureAndHash.hash = data[0] - m.signatureAndHash.signature = data[1] - data = data[2:] - } - - if len(data) < 2 { - return false - } - siglength := int(data[0])<<8 + int(data[1]) - data = data[2:] - if len(data) != siglength { - return false - } - - m.signature = data - - return true -} - -type newSessionTicketMsg struct { - raw []byte - ticket []byte -} - -func (m *newSessionTicketMsg) equal(i interface{}) bool { - m1, ok := i.(*newSessionTicketMsg) - if !ok { - return false - } - - return bytes.Equal(m.raw, m1.raw) && - bytes.Equal(m.ticket, m1.ticket) -} - -func (m *newSessionTicketMsg) marshal() (x []byte) { - if m.raw != nil { - return m.raw - } - - // See http://tools.ietf.org/html/rfc5077#section-3.3 - ticketLen := len(m.ticket) - length := 2 + 4 + ticketLen - x = make([]byte, 4+length) - x[0] = typeNewSessionTicket - x[1] = uint8(length >> 16) - x[2] = uint8(length >> 8) - x[3] = uint8(length) - x[8] = uint8(ticketLen >> 8) - x[9] = uint8(ticketLen) - copy(x[10:], m.ticket) - - m.raw = x - - return -} - -func (m *newSessionTicketMsg) unmarshal(data []byte) bool { - m.raw = data - - if len(data) < 10 { - return false - } - - length := uint32(data[1])<<16 | uint32(data[2])<<8 | uint32(data[3]) - if uint32(len(data))-4 != length { - return false - } - - ticketLen := int(data[8])<<8 + int(data[9]) - if len(data)-10 != ticketLen { - return false - } - - m.ticket = data[10:] - - return true -} - -func eqUint16s(x, y []uint16) bool { - if len(x) != len(y) { - return false - } - for i, v := range x { - if y[i] != v { - return false - } - } - return true -} - -func eqCurveIDs(x, y []CurveID) bool { - if len(x) != len(y) { - return false - } - for i, v := range x { - if y[i] != v { - return false - } - } - return true -} - -func eqStrings(x, y []string) bool { - if len(x) != len(y) { - return false - } - for i, v := range x { - if y[i] != v { - return false - } - } - return true -} - -func eqByteSlices(x, y [][]byte) bool { - if len(x) != len(y) { - return false - } - for i, v := range x { - if !bytes.Equal(v, y[i]) { - return false - } - } - return true -} - -func eqSignatureAndHashes(x, y []signatureAndHash) bool { - if len(x) != len(y) { - return false - } - for i, v := range x { - v2 := y[i] - if v.hash != v2.hash || v.signature != v2.signature { - return false - } - } - return true -} |