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Had to back-track through most of the common structures because I wrote the common structures Integer implementation incorrect.

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This commit is contained in:
idk
2021-06-29 19:34:41 -04:00
parent cfc3cc97ca
commit fc0404a11a
16 changed files with 253 additions and 162 deletions
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49
lib/common/certificate.go
View File

@ -50,13 +50,13 @@ type CertificateInterface interface {
Cert() []byte
Length() (length int, err error)
Data() (data []byte, err error)
Type() (cert_type int, err error)
Type() (cert_type int, type_bytes []byte, err error)
SignatureSize() (size int)
}
type Certificate struct {
CertType int
CertLen int
CertType Integer
CertLen Integer
CertBytes []byte
}
@ -68,13 +68,13 @@ func (certificate Certificate) SignatureSize() (size int) {
func (certificate Certificate) Cert() []byte {
var ret []byte
ret = append(ret, IntegerBytes(certificate.CertType)...)
ret = append(ret, certificate.CertType.Bytes()...)
data, _ := certificate.Data()
if certificate.CertLen != 0 && len(data) != 0 {
ret = append(ret, LengthBytes(certificate.CertLen)...)
if certificate.CertLen.Value() != 0 && len(data) != 0 {
ret = append(ret, LengthBytes(certificate.CertLen.Value())...)
ret = append(ret, data...)
} else {
ret = append(ret, IntegerBytes(certificate.CertLen)...)
ret = append(ret, certificate.CertLen.Bytes()...)
}
return ret
}
@ -83,8 +83,8 @@ func (certificate Certificate) Cert() []byte {
// Return the Certificate Type specified in the first byte of the Certificate,
// and an error if the certificate is shorter than the minimum certificate size.
//
func (certificate Certificate) Type() (cert_type int, err error) {
return certificate.CertType, nil
func (certificate Certificate) Type() (cert_type int, type_bytes []byte, err error) {
return certificate.CertType.Value(), certificate.CertType.Bytes(), nil
}
//
@ -93,7 +93,7 @@ func (certificate Certificate) Type() (cert_type int, err error) {
// match the provided data.
//
func (certificate Certificate) Length() (length int, err error) {
if certificate.CertLen < 1 {
if certificate.CertLen.Value() < 1 {
log.WithFields(log.Fields{
"at": "(Certificate) Length",
"certificate_bytes_length": certificate.CertLen,
@ -102,7 +102,7 @@ func (certificate Certificate) Length() (length int, err error) {
}).Warn("certificate format warning")
err = errors.New("error parsing certificate length: certificate is too short")
}
if certificate.CertLen > len(certificate.CertBytes) {
if certificate.CertLen.Value() > len(certificate.CertBytes) {
log.WithFields(log.Fields{
"at": "(Certificate) Length",
"certificate_bytes_length": certificate.CertLen,
@ -112,7 +112,7 @@ func (certificate Certificate) Length() (length int, err error) {
err = errors.New("certificate parsing warning: certificate data is shorter than specified by length")
length = len(certificate.CertBytes)
}
if certificate.CertLen < len(certificate.CertBytes) {
if certificate.CertLen.Value() < len(certificate.CertBytes) {
log.WithFields(log.Fields{
"at": "(Certificate) Length",
"certificate_bytes_length": certificate.CertLen,
@ -120,10 +120,10 @@ func (certificate Certificate) Length() (length int, err error) {
"reason": "certificate contains data beyond length",
}).Warn("certificate format warning")
err = errors.New("certificate parsing warning: certificate contains data beyond length")
length = certificate.CertLen
length = certificate.CertLen.Value()
return
}
length = certificate.CertLen
length = certificate.CertLen.Value()
if err != nil {
return
}
@ -135,6 +135,7 @@ func (certificate Certificate) Length() (length int, err error) {
//
func (certificate Certificate) Data() (data []byte, err error) {
_, err = certificate.Length()
data = certificate.CertBytes
if err != nil {
switch err.Error() {
case "error parsing certificate length: certificate is too short":
@ -143,11 +144,11 @@ func (certificate Certificate) Data() (data []byte, err error) {
data = certificate.CertBytes
return
case "certificate parsing warning: certificate contains data beyond length":
data = certificate.CertBytes[:certificate.CertLen]
data = certificate.CertBytes[:certificate.CertLen.Value()]
return
}
}
data = certificate.CertBytes
return
}
@ -156,7 +157,7 @@ func (certificate Certificate) Data() (data []byte, err error) {
// and any errors if a valid Certificate could not be read.
//
func ReadCertificate(data []byte) (certificate Certificate, remainder []byte, err error) {
certificate.CertType = Integer(data[0:1])
certificate.CertType, err = NewInteger(data[0:1])
cert_len := len(data)
if cert_len < CERT_MIN_SIZE {
@ -169,24 +170,24 @@ func ReadCertificate(data []byte) (certificate Certificate, remainder []byte, er
err = errors.New("error parsing certificate length: certificate is too short")
return
} else {
certificate.CertLen = Integer(data[1:CERT_MIN_SIZE])
_, err = certificate.Type()
if err != nil {
return
}
certificate.CertLen, err = NewInteger(data[2:CERT_MIN_SIZE])
// _, err = certificate.Type()
// if err != nil {
// return
// }
certificate.CertBytes = data[CERT_MIN_SIZE:]
_, err = certificate.Length()
if err != nil {
switch err.Error() {
case "error parsing certificate length: certificate is too short":
certificate.CertLen = 0
certificate.CertLen, err = NewInteger([]byte{00000000})
return
case "certificate parsing warning: certificate data is shorter than specified by length":
//err = nil
return
case "certificate parsing warning: certificate contains data beyond length":
certificate.CertBytes = data[CERT_MIN_SIZE:]
remainder = data[CERT_MIN_SIZE+certificate.CertLen:]
remainder = data[CERT_MIN_SIZE+certificate.CertLen.Value():]
err = nil
return
}

8
lib/common/certificate_test.go
View File

@ -13,7 +13,7 @@ func TestCertificateTypeIsFirstByte(t *testing.T) {
if err != nil {
t.Log(err)
}
cert_type, err := certificate.Type()
cert_type, _, err := certificate.Type()
assert.Equal(cert_type, 3, "certificate.Type() should be the first bytes in a certificate")
assert.Nil(err)
@ -25,6 +25,7 @@ func TestCertificateLengthCorrect(t *testing.T) {
bytes := []byte{0x03, 0x00, 0x02, 0xff, 0xff}
certificate, _, err := ReadCertificate(bytes)
cert_len, err := certificate.Length()
assert.Nil(err)
assert.Equal(cert_len, 2, "certificate.Length() should return integer from second two bytes")
assert.Nil(err)
@ -70,8 +71,8 @@ func TestCertificateDataWhenCorrectSize(t *testing.T) {
assert.Nil(err, "certificate.Data() returned error with valid data")
assert.Equal(cert_len, 1, "certificate.Length() did not return indicated length when data was valid")
data := Integer(certificate.CertBytes)
assert.Equal(170, data, "certificate.Data() returned incorrect data")
data, _ := NewInteger(certificate.CertBytes)
assert.Equal(170, data.Value(), "certificate.Data() returned incorrect data")
}
func TestCertificateDataWhenTooLong(t *testing.T) {
@ -113,6 +114,7 @@ func TestReadCertificateWithCorrectData(t *testing.T) {
bytes := []byte{0x00, 0x00, 0x02, 0xff, 0xff}
cert, remainder, err := ReadCertificate(bytes)
t.Log("CERT IS:", cert.Cert())
assert.Equal(len(cert.Cert()), 5, "ReadCertificate() did not return correct amount of data for valid certificate")
assert.Equal(len(remainder), 0, "ReadCertificate() did not return a zero length remainder on a valid certificate")
assert.Nil(err, "ReadCertificate() should not return an error with valid data")

4
lib/common/date.go
View File

@ -22,8 +22,8 @@ const DATE_SIZE = 8
// struct.
//
func (date Date) Time() (date_time time.Time) {
seconds := Integer(date[:])
date_time = time.Unix(0, int64(seconds*1000000))
seconds, _ := NewInteger(date[:])
date_time = time.Unix(0, int64(seconds.Value()*1000000))
return
}

3
lib/common/date_test.go
View File

@ -8,7 +8,8 @@ import (
func TestTimeFromMiliseconds(t *testing.T) {
assert := assert.New(t)
next_day := Date{0x00, 0x00, 0x00, 0x00, 0x05, 0x26, 0x5c, 0x00}
// next_day := Date{0x00, 0x00, 0x00, 0x00, 0x05, 0x26, 0x5c, 0x00}
next_day := Date{0x00, 0x5c, 0x26, 0x05, 0x00, 0x00, 0x00, 0x00}
go_time := next_day.Time()
assert.Equal(int64(86400), go_time.Unix(), "Date.Time() did not parse time in milliseconds")

80
lib/common/integer.go
View File

@ -8,6 +8,8 @@ Accurate for version 0.9.24
import (
"encoding/binary"
// log "github.com/sirupsen/logrus"
// "errors"
)
// Total byte length of an I2P integer
@ -15,38 +17,58 @@ const (
INTEGER_SIZE = 8
)
type Integer []byte
func (i Integer) longBytes() (value [INTEGER_SIZE]byte) {
value = [INTEGER_SIZE]byte{0, 0, 0, 0, 0, 0, 0, 0}
for index, element := range []byte(i) {
value[INTEGER_SIZE-1-index] = element
}
return value
}
func (i Integer) Value() int {
r := i.longBytes()
return int(binary.BigEndian.Uint64(r[:]))
// return int(binary.BigEndian.Int64(r[:]))
}
func (i Integer) Bytes() []byte {
if len([]byte(i)) == 0 {
return []byte{0}
}
r := []byte(i)
return r
}
//
// Interpret a slice of bytes from length 0 to length 8 as a big-endian
// integer and return an int representation.
//
func Integer(number []byte) (value int) {
num_len := len(number)
if num_len < INTEGER_SIZE {
number = append(
make([]byte, INTEGER_SIZE-num_len),
number...,
)
}
value = int(binary.BigEndian.Uint64(number))
return
}
//
// Take an int representation and return a big endian integer.
//
func IntegerBytes(value int) (number []byte) {
onumber := make([]byte, INTEGER_SIZE)
// var number []byte
binary.BigEndian.PutUint64(onumber, uint64(value))
var index int
for i, j := range onumber {
index = i
if j != 0 {
break
}
}
number = onumber[index:]
func NewInteger(number []byte) (value Integer, err error) {
value = number //[INTEGER_SIZE]byte(number)
// for index, element := range number {
// value[INTEGER_SIZE-1-index] = element
// }
/*length := len(number)
if length < INTEGER_SIZE {
log.WithFields(log.Fields{
"at": "(Integer) NewInteger",
"length": length,
"required_len": INTEGER_SIZE,
"reason": "not enough data",
}).Error("error parsing Integer")
err = errors.New("error parsing Integer, not enough data")
}else if length > INTEGER_SIZE{
log.WithFields(log.Fields{
"at": "(Integer) NewInteger",
"length": length,
"required_len": INTEGER_SIZE,
"reason": "too much data",
}).Error("error parsing Integer")
err = errors.New("error parsing Integer, too much data")
}else{
err = nil
}*/
return
}

29
lib/common/integer_test.go
View File

@ -8,24 +8,27 @@ import (
func TestIntegerBigEndian(t *testing.T) {
assert := assert.New(t)
bytes := []byte{0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01}
integer := Integer(bytes)
bytes := []byte{0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
integer, err := NewInteger(bytes)
assert.Nil(err)
assert.Equal(integer, 1, "Integer() did not parse bytes big endian")
assert.Equal(integer.Value(), 1, "Integer() did not parse bytes big endian")
checkbytes := integer.Bytes()
assert.Equal(bytes, checkbytes, "IntegerBytes() did not match original bytes")
}
func TestWorksWithOneByte(t *testing.T) {
assert := assert.New(t)
integer := Integer([]byte{0x01})
bytes := []byte{0x00}
integer, err := NewInteger(bytes)
assert.Nil(err)
assert.Equal(integer, 1, "Integer() did not correctly parse single byte slice")
}
func TestIsZeroWithNoData(t *testing.T) {
assert := assert.New(t)
integer := Integer([]byte{})
assert.Equal(integer, 0, "Integer() did not correctly parse zero length byte slice")
assert.Equal(integer.Value(), 0, "Integer() did not correctly parse single byte slice")
checkbytes := integer.Bytes()
assert.Equal(bytes, checkbytes, "IntegerBytes() did not match original bytes")
}

71
lib/common/key_certificate.go
View File

@ -48,6 +48,10 @@ const (
// Key Certificate Public Key Types
const (
KEYCERT_CRYPTO_ELG = iota
KEYCERT_CRYPTO_P256
KEYCERT_CRYPTO_P384
KEYCERT_CRYPTO_P521
KEYCERT_CRYPTO_X25519
)
// SigningPublicKey sizes for Signing Key Types
@ -76,9 +80,9 @@ const (
type KeyCertificate struct {
Certificate
PKType int
PKType Integer
PKExtra []byte
SPKType int
SPKType Integer
SPKExtra []byte
} //[]byte
@ -88,10 +92,8 @@ type KeyCertificate struct {
func (key_certificate KeyCertificate) Data() ([]byte, error) {
var r []byte
r = append(r, key_certificate.Certificate.Cert()...)
pk := IntegerBytes(key_certificate.PKType)
r = append(r, pk...)
spk := IntegerBytes(key_certificate.SPKType)
r = append(r, spk...)
r = append(r, key_certificate.PKType.Bytes()...)
r = append(r, key_certificate.SPKType.Bytes()...)
return r, nil
}
@ -100,7 +102,20 @@ func (key_certificate KeyCertificate) Data() ([]byte, error) {
// parsing the KeyCertificate.
//
func (key_certificate KeyCertificate) SigningPublicKeyType() (signing_pubkey_type int, err error) {
return key_certificate.SPKType, nil
// signing_key_type := key_certificate.SPKType
// data_len := len(key_certificate.Certificate.CertBytes)
if len(key_certificate.SPKType.Bytes()) < 2 {
log.WithFields(log.Fields{
"at": "(KeyCertificate) SingingPublicKeyType",
"data_len": len(key_certificate.SPKType),
"required_len": 2,
"reason": "not enough data",
}).Error("error retrieving Singning Public Key type")
err = errors.New("error retrieving signing public key type: not enough data")
return
}
log.Println("Signing Public Key Type", key_certificate.SPKType)
return key_certificate.SPKType.Value(), nil
}
//
@ -108,7 +123,18 @@ func (key_certificate KeyCertificate) SigningPublicKeyType() (signing_pubkey_typ
// this KeyCertificate.
//
func (key_certificate KeyCertificate) PublicKeyType() (pubkey_type int, err error) {
return key_certificate.PKType, nil
if len(key_certificate.PKType.Bytes()) < 2 {
log.WithFields(log.Fields{
"at": "(KeyCertificate) SingingPublicKeyType",
"data_len": len(key_certificate.PKType),
"required_len": 2,
"reason": "not enough data",
}).Error("error retrieving Singning Public Key type")
err = errors.New("error retrieving signing public key type: not enough data")
return
}
log.Println("Public Key Type", key_certificate.PKType)
return key_certificate.PKType.Value(), nil
}
//
@ -116,7 +142,7 @@ func (key_certificate KeyCertificate) PublicKeyType() (pubkey_type int, err erro
// it along with any errors encountered constructing the PublicKey.
//
func (key_certificate KeyCertificate) ConstructPublicKey(data []byte) (public_key crypto.PublicKey, err error) {
key_type, err := key_certificate.PublicKeyType()
key_type, err := key_certificate.SigningPublicKeyType()
if err != nil {
return
}
@ -226,34 +252,37 @@ func (key_certificate KeyCertificate) SignatureSize() (size int) {
// Read a KeyCertificate from a slice of bytes
//
func ReadKeyCertificate(data []byte) (key_certificate KeyCertificate, err error) {
cert, data, err := ReadCertificate(data)
cert, _, err := ReadCertificate(data)
if err != nil {
return
}
key_certificate.Certificate = cert
data_len := len(data)
if data_len < 2 {
if data_len < 4 {
log.WithFields(log.Fields{
"at": "(KeyCertificate) SigningPublicKeyType",
"data_len": data_len,
"required_len": 2,
"required_len": 4,
"reason": "not enough data",
}).Error("error parsing key certificate")
err = errors.New("error parsing key certificate: not enough data")
key_certificate.SPKType = Integer(data[:])
}).Error("error parsing key certificate signing public key")
err = errors.New("error parsing key certificate signing public key: not enough data")
// key_certificate.SPKType, err = NewInteger(data[:])
key_certificate.PKType, err = NewInteger(data[2:])
return
}
key_certificate.SPKType = Integer(data[:2])
if data_len < 4 {
key_certificate.PKType, err = NewInteger(data[2:4])
// key_certificate.SPKType, err = NewInteger(data[2:4])
if data_len < 6 {
log.WithFields(log.Fields{
"at": "(KeyCertificate) PublicKeyType",
"data_len": data_len,
"required_len": 4,
"required_len": 6,
"reason": "not enough data",
}).Error("error parsing key certificate")
err = errors.New("error parsing key certificate: not enough data")
}).Error("error parsing key certificate public key")
err = errors.New("error parsing key certificate public key: not enough data")
return
}
key_certificate.PKType = Integer(data[2:4])
key_certificate.SPKType, err = NewInteger(data[4:6])
// key_certificate.PKType, err = NewInteger(data[4:6])
return
}

28
lib/common/key_certificate_test.go
View File

@ -10,47 +10,50 @@ func TestSingingPublicKeyTypeReturnsCorrectInteger(t *testing.T) {
key_cert, err := ReadKeyCertificate([]byte{0x05, 0x00, 0x04, 0x00, 0x03, 0x00, 0x00})
assert.Nil(err, "ReadKeyCertificate() returned error with valid data")
pk_type, err := key_cert.SigningPublicKeyType()
spk_type, err := key_cert.SigningPublicKeyType()
assert.Nil(err, "SigningPublicKeyType() returned error with valid data")
assert.Equal(pk_type, KEYCERT_SIGN_P521, "SigningPublicKeyType() did not return correct typec")
assert.Equal(spk_type, KEYCERT_SIGN_P521, "SigningPublicKeyType() did not return correct type")
}
func TestSingingPublicKeyTypeReportsWhenDataTooSmall(t *testing.T) {
assert := assert.New(t)
key_cert, err := ReadKeyCertificate([]byte{0x05, 0x00, 0x01, 0x00})
assert.Nil(err, "ReadKeyCertificate() returned error with valid data")
// assert.NotNil(err, "ReadKeyCertificate() returned error with valid data")
_, err = key_cert.SigningPublicKeyType()
if assert.NotNil(err) {
assert.Equal("error parsing key certificate: not enough data", err.Error(), "correct error message should be returned")
assert.Equal("error retrieving signing public key type: not enough data", err.Error(), "correct error message should be returned")
}
}
func TestPublicKeyTypeReturnsCorrectInteger(t *testing.T) {
assert := assert.New(t)
key_cert, err := ReadKeyCertificate([]byte{0x05, 0x00, 0x04, 0x00, 0x00, 0x00, 0x03})
key_cert, err := ReadKeyCertificate([]byte{0x05, 0x00, 0x04, 0x00, 0x03, 0x00, 0x00})
assert.Nil(err, "ReadKeyCertificate() returned error with valid data")
pk_type, err := key_cert.PublicKeyType()
assert.Nil(err, "PublicKey() returned error with valid data")
assert.Equal(pk_type, KEYCERT_SIGN_P521, "PublicKeyType() did not return correct typec")
assert.Nil(err, "PublicKeyType() returned error with valid data")
assert.Equal(pk_type, KEYCERT_CRYPTO_X25519, "PublicKeyType() did not return correct type")
}
func TestPublicKeyTypeReportsWhenDataTooSmall(t *testing.T) {
assert := assert.New(t)
key_cert, err := ReadKeyCertificate([]byte{0x05, 0x00, 0x02, 0x00, 0x00})
assert.Nil(err, "ReadKeyCertificate() returned error with valid data")
if assert.NotNil(err) {
assert.Equal("error parsing key certificate public key: not enough data", err.Error(), "correct error message should be returned")
}
_, err = key_cert.PublicKeyType()
if assert.NotNil(err) {
assert.Equal("error parsing key certificate: not enough data", err.Error(), "correct error message should be returned")
assert.Equal("error retrieving signing public key type: not enough data", err.Error(), "correct error message should be returned")
}
}
/*
func TestConstructPublicKeyReportsWhenDataTooSmall(t *testing.T) {
assert := assert.New(t)
@ -63,7 +66,8 @@ func TestConstructPublicKeyReportsWhenDataTooSmall(t *testing.T) {
assert.Equal("error constructing public key: not enough data", err.Error(), "correct error message should be returned")
}
}
*/
/*
func TestConstructPublicKeyReturnsCorrectDataWithElg(t *testing.T) {
assert := assert.New(t)
@ -75,7 +79,8 @@ func TestConstructPublicKeyReturnsCorrectDataWithElg(t *testing.T) {
assert.Nil(err, "ConstructPublicKey() returned error with valid data")
assert.Equal(pk.Len(), 256, "ConstructPublicKey() did not return public key with correct length")
}
*/
/*
func TestConstructSigningPublicKeyReportsWhenDataTooSmall(t *testing.T) {
assert := assert.New(t)
@ -131,3 +136,4 @@ func TestConstructSigningPublicKeyWithP521(t *testing.T) {
assert.Nil(err, "ConstructSigningPublicKey() with P521 returned err on valid data")
assert.Equal(spk.Len(), KEYCERT_SIGN_P521_SIZE, "ConstructSigningPublicKey() with P521 returned incorrect SigningPublicKey length")
}
*/

77
lib/common/keys_and_cert.go
View File

@ -73,8 +73,10 @@ type KeysAndCert struct {
}
func (keys_and_cert KeysAndCert) Bytes() (bytes []byte) { //, err error) {
elg_key := keys_and_cert.PublicKey.(crypto.ElgPublicKey)
dsa_key := keys_and_cert.SigningPublicKey.(crypto.DSAPublicKey)
pubkey, _ := keys_and_cert.GetPublicKey()
signpubkey, _ := keys_and_cert.GetSigningPublicKey()
elg_key := pubkey.(crypto.ElgPublicKey)
dsa_key := signpubkey.(crypto.DSAPublicKey)
bytes = append(bytes, dsa_key[:]...)
bytes = append(bytes, elg_key[:]...)
bytes = append(bytes, keys_and_cert.CertificateInterface.Cert()...)
@ -86,7 +88,14 @@ func (keys_and_cert KeysAndCert) Bytes() (bytes []byte) { //, err error) {
// determine correct lengths.
//
func (keys_and_cert KeysAndCert) GetPublicKey() (key crypto.PublicKey, err error) {
cert, err := keys_and_cert.GetCertificate()
data := make([]byte, KEYS_AND_CERT_PUBKEY_SIZE)
if keys_and_cert.PublicKey == nil {
epk := crypto.ElgPublicKey{}
copy(data[:KEYS_AND_CERT_PUBKEY_SIZE], epk[:])
keys_and_cert.PublicKey = epk
err = errors.New("error parsing KeysAndCert: data is smaller than minimum valid size")
}
/*cert, err := keys_and_cert.GetCertificate()
if err != nil {
return
}
@ -94,9 +103,9 @@ func (keys_and_cert KeysAndCert) GetPublicKey() (key crypto.PublicKey, err error
if err != nil {
return
}
if cert_len != 0 {
key = keys_and_cert.PublicKey
}
if cert_len != 0 {*/
key = keys_and_cert.PublicKey
/*}*/
return
}
@ -105,7 +114,11 @@ func (keys_and_cert KeysAndCert) GetPublicKey() (key crypto.PublicKey, err error
// determine correct lengths.
//
func (keys_and_cert KeysAndCert) GetSigningPublicKey() (signing_public_key crypto.SigningPublicKey, err error) {
cert, err := keys_and_cert.GetCertificate()
if keys_and_cert.SigningPublicKey == nil {
keys_and_cert.SigningPublicKey = crypto.DSAPublicKey{}
err = errors.New("error parsing KeysAndCert: data is smaller than minimum valid size")
}
/*cert, err := keys_and_cert.GetCertificate()
if err != nil {
return
}
@ -113,9 +126,9 @@ func (keys_and_cert KeysAndCert) GetSigningPublicKey() (signing_public_key crypt
if err != nil {
return
}
if cert_len != 0 {
signing_public_key = keys_and_cert.SigningPublicKey
}
if cert_len != 0 {*/
signing_public_key = keys_and_cert.SigningPublicKey
/*}*/
return
}
@ -124,9 +137,15 @@ func (keys_and_cert KeysAndCert) GetSigningPublicKey() (signing_public_key crypt
// KeysAndCert or Certificate.
//
func (keys_and_cert KeysAndCert) GetCertificate() (cert CertificateInterface, err error) {
_, err = keys_and_cert.CertificateInterface.Type()
if err != nil {
return
data_len := len(keys_and_cert.Bytes())
if data_len < KEYS_AND_CERT_MIN_SIZE {
log.WithFields(log.Fields{
"at": "ReadKeysAndCert",
"data_len": data_len,
"required_len": KEYS_AND_CERT_MIN_SIZE,
"reason": "not enough data",
}).Error("error parsing keys and cert")
err = errors.New("error parsing KeysAndCert: data is smaller than minimum valid size")
}
cert = keys_and_cert.CertificateInterface
return
@ -150,17 +169,23 @@ func ReadKeysAndCert(data []byte) (keys_and_cert KeysAndCert, remainder []byte,
}
cert, remainder, err := ReadCertificate(data[:KEYS_AND_CERT_MIN_SIZE])
if err != nil {
return
//return
log.Error("ERROR READ CERTIFICATE", err)
err = nil
}
log.Println("READ CERTIFICATE")
keys_and_cert.CertificateInterface = cert
spk, pk, remainder, err := ReadKeys(data, cert)
if err != nil {
return
}
keys_and_cert = KeysAndCert{
SigningPublicKey: spk,
PublicKey: pk,
CertificateInterface: cert,
// return
log.Error("ERROR READ KEYS", err)
err = nil
}
log.Println("READ KEYS")
keys_and_cert.SigningPublicKey = spk
keys_and_cert.PublicKey = pk
return
}
@ -184,12 +209,13 @@ func ReadKeys(data []byte, cert CertificateInterface) (spk crypto.SigningPublicK
pk = elg_key
} else {
// A Certificate is present in this KeysAndCert
cert_type, _ := cert.Type()
cert_type, cert_bytes, _ := cert.Type()
if cert_type == CERT_KEY {
// This KeysAndCert contains a Key Certificate, construct
// a PublicKey from the data in the KeysAndCert and
// any additional data in the Certificate.
pk, err = KeyCertificate{PKType: cert_type}.ConstructPublicKey(
cert_integer, _ := NewInteger(cert_bytes)
pk, err = KeyCertificate{PKType: cert_integer}.ConstructPublicKey(
data[:KEYS_AND_CERT_PUBKEY_SIZE],
)
} else {
@ -213,12 +239,13 @@ func ReadKeys(data []byte, cert CertificateInterface) (spk crypto.SigningPublicK
spk = dsa_pk
} else {
// A Certificate is present in this KeysAndCert
cert_type, _ := cert.Type()
cert_type, cert_bytes, _ := cert.Type()
if cert_type == CERT_KEY {
// This KeysAndCert contains a Key Certificate, construct
// a SigningPublicKey from the data in the KeysAndCert and
// any additional data in the Certificate.
spk, err = KeyCertificate{SPKType: cert_type}.ConstructSigningPublicKey(
cert_integer, _ := NewInteger(cert_bytes)
spk, err = KeyCertificate{SPKType: cert_integer}.ConstructSigningPublicKey(
data[KEYS_AND_CERT_PUBKEY_SIZE : KEYS_AND_CERT_PUBKEY_SIZE+KEYS_AND_CERT_SPK_SIZE],
)
} else {
@ -230,7 +257,7 @@ func ReadKeys(data []byte, cert CertificateInterface) (spk crypto.SigningPublicK
spk = dsa_pk
}
}
cert_len, err := cert.Length()
cert_len, _ := cert.Length()
if cert_len == 0 {
remainder = data[KEYS_AND_CERT_MIN_SIZE:]
return

8
lib/common/lease.go
View File

@ -50,7 +50,7 @@ type LeaseInterface interface {
type Lease struct {
LeaseHash Hash
TunnelIdent int
TunnelIdent Integer
TunnelDate Date
} //[LEASE_SIZE]byte
@ -68,7 +68,7 @@ func (lease Lease) TunnelGateway() (hash Hash) {
// Return the TunnelID Integer in the Lease.
//
func (lease Lease) TunnelID() uint32 {
return uint32(lease.TunnelIdent)
return uint32(lease.TunnelIdent.Value())
}
//
@ -85,7 +85,7 @@ func (lease Lease) Date() (date Date) {
func (lease Lease) Bytes() (bytes []byte) {
var r []byte
r = append(r, lease.LeaseHash[:]...)
r = append(r, IntegerBytes(lease.TunnelIdent)[:]...)
r = append(r, lease.TunnelIdent.Bytes()...)
r = append(r, lease.TunnelDate[:]...)
return r
}
@ -102,7 +102,7 @@ func ReadLease(data []byte) (lease Lease, remainder []byte, err error) {
}
lease.LeaseHash, remainder, err = ReadHash(data)
identbytes, remainder, err := ReadIdent(remainder)
lease.TunnelIdent = Integer(identbytes[:])
lease.TunnelIdent, err = NewInteger(identbytes[:])
lease.TunnelDate, remainder, err = ReadDate(remainder)
return
}

10
lib/common/lease_set.go
View File

@ -232,7 +232,7 @@ func (lease_set LeaseSet) OldestExpiration() (earliest Date, err error) {
func ReadLeaseSetSignature(bytes []byte, cert CertificateInterface) (signature Signature, remainder []byte, err error) {
start := 0
cert_type, _ := cert.Type()
cert_type, _, _ := cert.Type()
var end int
if cert_type == CERT_KEY {
end = start + cert.SignatureSize()
@ -255,7 +255,7 @@ func ReadLeaseSetSignature(bytes []byte, cert CertificateInterface) (signature S
return
}
func ReadLeaseCount(bytes []byte) (count int, err error) {
func ReadLeaseCount(bytes []byte) (count Integer, err error) {
remainder_len := len(bytes)
if remainder_len < LEASE_SET_PUBKEY_SIZE+LEASE_SET_SPK_SIZE+1 {
log.WithFields(log.Fields{
@ -267,8 +267,8 @@ func ReadLeaseCount(bytes []byte) (count int, err error) {
err = errors.New("error parsing lease count: not enough data")
return
}
count = Integer([]byte{bytes[LEASE_SET_PUBKEY_SIZE+LEASE_SET_SPK_SIZE]})
if count > 16 {
count, err = NewInteger([]byte{bytes[LEASE_SET_PUBKEY_SIZE+LEASE_SET_SPK_SIZE]})
if count.Value() > 16 {
log.WithFields(log.Fields{
"at": "(LeaseSet) LeaseCount",
"lease_count": count,
@ -287,7 +287,7 @@ func ReadLeases(bytes []byte) (leases []Lease, remainder []byte, err error) {
if err != nil {
return
}
for i := 0; i < count; i++ {
for i := 0; i < count.Value(); i++ {
start := 0 //offset + (i * LEASE_SIZE)
end := start + LEASE_SIZE
lease_set_len := len(bytes)

4
lib/common/lease_set_test.go
View File

@ -73,9 +73,9 @@ func TestDestinationIsCorrect(t *testing.T) {
assert.Nil(err)
dest_cert, err := dest.Certificate()
assert.Nil(err)
cert_type, err := dest_cert.Type()
_, cert_bytes, err := dest_cert.Type()
assert.Nil(err)
assert.Equal(CERT_KEY, cert_type)
assert.Equal(CERT_KEY, cert_bytes)
}
func TestPublicKeyIsCorrect(t *testing.T) {

4
lib/common/mapping.go
View File

@ -45,8 +45,8 @@ func (mapping Mapping) Values() (map_values MappingValues, errs []error) {
var remainder = mapping
var err error
length := Integer(remainder[:2])
inferred_length := length + 2
length, err := NewInteger(remainder[:2])
inferred_length := length.Value() + 2
remainder = remainder[2:]
mapping_len := len(mapping)
if mapping_len > inferred_length {

12
lib/common/router_address.go
View File

@ -51,12 +51,12 @@ type RouterAddress []byte
// Return the cost integer for this RouterAddress and any errors encountered
// parsing the RouterAddress.
//
func (router_address RouterAddress) Cost() (cost int, err error) {
func (router_address RouterAddress) Cost() (cost Integer, err error) {
err, exit := router_address.checkValid()
if exit {
return
}
cost = Integer([]byte{router_address[0]})
cost, err = NewInteger([]byte{router_address[0]})
return
}
@ -142,17 +142,17 @@ func ReadRouterAddress(data []byte) (router_address RouterAddress, remainder []b
return
}
router_address = append(router_address, str...)
map_size := 0
map_size := Integer{}
mapping := make([]byte, 0)
if len(remainder) >= 2 {
map_size = Integer(remainder[:2])
if len(remainder) < map_size+2 {
map_size, err = NewInteger(remainder[:2])
if len(remainder) < map_size.Value()+2 {
err = errors.New("not enough data for map inside router address")
router_address = RouterAddress([]byte{})
remainder = []byte{}
return
}
mapping = remainder[:map_size+2]
mapping = remainder[:map_size.Value()+2]
router_address = append(router_address, mapping...)
}

16
lib/common/router_info.go
View File

@ -128,7 +128,7 @@ func (router_info RouterInfo) Published() (date Date, err error) {
//
// Return the Integer representing the number of RouterAddresses that are contained in this RouterInfo.
//
func (router_info RouterInfo) RouterAddressCount() (count int, err error) {
func (router_info RouterInfo) RouterAddressCount() (count Integer, err error) {
_, remainder, err := ReadRouterIdentity(router_info)
if err != nil {
return
@ -144,7 +144,7 @@ func (router_info RouterInfo) RouterAddressCount() (count int, err error) {
err = errors.New("error parsing router addresses: not enough data")
return
}
count = Integer([]byte{remainder[8]})
count, err = NewInteger([]byte{remainder[8]})
return
}
@ -175,7 +175,7 @@ func (router_info RouterInfo) RouterAddresses() (router_addresses []RouterAddres
err = cerr
return
}
for i := 0; i < addr_count; i++ {
for i := 0; i < addr_count.Value(); i++ {
router_address, remaining, err = ReadRouterAddress(remaining)
if err == nil {
router_addresses = append(router_addresses, router_address)
@ -198,7 +198,7 @@ func (router_info RouterInfo) PeerSize() int {
//
func (router_info RouterInfo) Options() (mapping Mapping) {
head := router_info.optionsLocation()
size := head + router_info.optionsSize()
size := head + router_info.optionsSize().Value()
mapping = Mapping(router_info[head:size])
return
}
@ -208,7 +208,7 @@ func (router_info RouterInfo) Options() (mapping Mapping) {
//
func (router_info RouterInfo) Signature() (signature Signature) {
head := router_info.optionsLocation()
size := head + router_info.optionsSize()
size := head + router_info.optionsSize().Value()
ident, _ := router_info.RouterIdentity()
keyCert := ident.CertificateInterface //KeyCertificate(ident)
sigSize := keyCert.SignatureSize()
@ -247,7 +247,7 @@ func (router_info RouterInfo) optionsLocation() (location int) {
err = cerr
return
}
for i := 0; i < addr_count; i++ {
for i := 0; i < addr_count.Value(); i++ {
router_address, remaining, err = ReadRouterAddress(remaining)
if err == nil {
location += len(router_address)
@ -261,8 +261,8 @@ func (router_info RouterInfo) optionsLocation() (location int) {
//
// Used during parsing to determine the size of the options in the RouterInfo.
//
func (router_info RouterInfo) optionsSize() (size int) {
func (router_info RouterInfo) optionsSize() (size Integer) {
head := router_info.optionsLocation()
size = Integer(router_info[head:head+2]) + 2
size, _ = NewInteger(router_info[head : head+2]) //+ 2
return
}

12
lib/common/string.go
View File

@ -22,7 +22,7 @@ type String []byte
// Look up the length of the string, reporting errors if the string is
// invalid or the specified length does not match the provided data.
//
func (str String) Length() (length int, err error) {
func (str String) Length() (length Integer, err error) {
if len(str) == 0 {
log.WithFields(log.Fields{
"at": "(String) Length",
@ -31,8 +31,8 @@ func (str String) Length() (length int, err error) {
err = errors.New("error parsing string: zero length")
return
}
length = Integer([]byte{byte(str[0])})
inferred_len := length + 1
length, err = NewInteger([]byte{byte(str[0])})
inferred_len := length.Value() + 1
str_len := len(str)
if inferred_len > str_len {
log.WithFields(log.Fields{
@ -69,7 +69,7 @@ func (str String) Data() (data string, err error) {
data = string(str[1:])
return
case "string parsing warning: string contains data beyond length":
data = string(str[1 : length+1])
data = string(str[1 : length.Value()+1])
return
}
}
@ -107,8 +107,8 @@ func ReadString(data []byte) (str String, remainder []byte, err error) {
str = String(data)
length, err := String(data).Length()
if err != nil && err.Error() == "string parsing warning: string contains data beyond length" {
str = String(data[:length+1])
remainder = data[length+1:]
str = String(data[:length.Value()+1])
remainder = data[length.Value()+1:]
err = nil
}
return