feat: quic analyzer (client side only)

This commit is contained in:
Toby 2024-02-11 22:25:37 -08:00
parent 7a52228ec6
commit c1e90960dd
13 changed files with 932 additions and 191 deletions

205
analyzer/internal/tls.go Normal file
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@ -0,0 +1,205 @@
package internal
import (
"github.com/apernet/OpenGFW/analyzer"
"github.com/apernet/OpenGFW/analyzer/utils"
)
func ParseTLSClientHello(chBuf *utils.ByteBuffer) analyzer.PropMap {
var ok bool
m := make(analyzer.PropMap)
// Version, random & session ID length combined are within 35 bytes,
// so no need for bounds checking
m["version"], _ = chBuf.GetUint16(false, true)
m["random"], _ = chBuf.Get(32, true)
sessionIDLen, _ := chBuf.GetByte(true)
m["session"], ok = chBuf.Get(int(sessionIDLen), true)
if !ok {
// Not enough data for session ID
return nil
}
cipherSuitesLen, ok := chBuf.GetUint16(false, true)
if !ok {
// Not enough data for cipher suites length
return nil
}
if cipherSuitesLen%2 != 0 {
// Cipher suites are 2 bytes each, so must be even
return nil
}
ciphers := make([]uint16, cipherSuitesLen/2)
for i := range ciphers {
ciphers[i], ok = chBuf.GetUint16(false, true)
if !ok {
return nil
}
}
m["ciphers"] = ciphers
compressionMethodsLen, ok := chBuf.GetByte(true)
if !ok {
// Not enough data for compression methods length
return nil
}
// Compression methods are 1 byte each, we just put a byte slice here
m["compression"], ok = chBuf.Get(int(compressionMethodsLen), true)
if !ok {
// Not enough data for compression methods
return nil
}
extsLen, ok := chBuf.GetUint16(false, true)
if !ok {
// No extensions, I guess it's possible?
return m
}
extBuf, ok := chBuf.GetSubBuffer(int(extsLen), true)
if !ok {
// Not enough data for extensions
return nil
}
for extBuf.Len() > 0 {
extType, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension type
return nil
}
extLen, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension length
return nil
}
extDataBuf, ok := extBuf.GetSubBuffer(int(extLen), true)
if !ok || !parseTLSExtensions(extType, extDataBuf, m) {
// Not enough data for extension data, or invalid extension
return nil
}
}
return m
}
func ParseTLSServerHello(shBuf *utils.ByteBuffer) analyzer.PropMap {
var ok bool
m := make(analyzer.PropMap)
// Version, random & session ID length combined are within 35 bytes,
// so no need for bounds checking
m["version"], _ = shBuf.GetUint16(false, true)
m["random"], _ = shBuf.Get(32, true)
sessionIDLen, _ := shBuf.GetByte(true)
m["session"], ok = shBuf.Get(int(sessionIDLen), true)
if !ok {
// Not enough data for session ID
return nil
}
cipherSuite, ok := shBuf.GetUint16(false, true)
if !ok {
// Not enough data for cipher suite
return nil
}
m["cipher"] = cipherSuite
compressionMethod, ok := shBuf.GetByte(true)
if !ok {
// Not enough data for compression method
return nil
}
m["compression"] = compressionMethod
extsLen, ok := shBuf.GetUint16(false, true)
if !ok {
// No extensions, I guess it's possible?
return m
}
extBuf, ok := shBuf.GetSubBuffer(int(extsLen), true)
if !ok {
// Not enough data for extensions
return nil
}
for extBuf.Len() > 0 {
extType, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension type
return nil
}
extLen, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension length
return nil
}
extDataBuf, ok := extBuf.GetSubBuffer(int(extLen), true)
if !ok || !parseTLSExtensions(extType, extDataBuf, m) {
// Not enough data for extension data, or invalid extension
return nil
}
}
return m
}
func parseTLSExtensions(extType uint16, extDataBuf *utils.ByteBuffer, m analyzer.PropMap) bool {
switch extType {
case 0x0000: // SNI
ok := extDataBuf.Skip(2) // Ignore list length, we only care about the first entry for now
if !ok {
// Not enough data for list length
return false
}
sniType, ok := extDataBuf.GetByte(true)
if !ok || sniType != 0 {
// Not enough data for SNI type, or not hostname
return false
}
sniLen, ok := extDataBuf.GetUint16(false, true)
if !ok {
// Not enough data for SNI length
return false
}
m["sni"], ok = extDataBuf.GetString(int(sniLen), true)
if !ok {
// Not enough data for SNI
return false
}
case 0x0010: // ALPN
ok := extDataBuf.Skip(2) // Ignore list length, as we read until the end
if !ok {
// Not enough data for list length
return false
}
var alpnList []string
for extDataBuf.Len() > 0 {
alpnLen, ok := extDataBuf.GetByte(true)
if !ok {
// Not enough data for ALPN length
return false
}
alpn, ok := extDataBuf.GetString(int(alpnLen), true)
if !ok {
// Not enough data for ALPN
return false
}
alpnList = append(alpnList, alpn)
}
m["alpn"] = alpnList
case 0x002b: // Supported Versions
if extDataBuf.Len() == 2 {
// Server only selects one version
m["supported_versions"], _ = extDataBuf.GetUint16(false, true)
} else {
// Client sends a list of versions
ok := extDataBuf.Skip(1) // Ignore list length, as we read until the end
if !ok {
// Not enough data for list length
return false
}
var versions []uint16
for extDataBuf.Len() > 0 {
ver, ok := extDataBuf.GetUint16(false, true)
if !ok {
// Not enough data for version
return false
}
versions = append(versions, ver)
}
m["supported_versions"] = versions
}
case 0xfe0d: // ECH
// We can't parse ECH for now, just set a flag
m["ech"] = true
}
return true
}

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@ -2,6 +2,7 @@ package tcp
import (
"github.com/apernet/OpenGFW/analyzer"
"github.com/apernet/OpenGFW/analyzer/internal"
"github.com/apernet/OpenGFW/analyzer/utils"
)
@ -142,74 +143,14 @@ func (s *tlsStream) parseClientHello() utils.LSMAction {
// Not a full client hello yet
return utils.LSMActionPause
}
s.reqUpdated = true
s.reqMap = make(analyzer.PropMap)
// Version, random & session ID length combined are within 35 bytes,
// so no need for bounds checking
s.reqMap["version"], _ = chBuf.GetUint16(false, true)
s.reqMap["random"], _ = chBuf.Get(32, true)
sessionIDLen, _ := chBuf.GetByte(true)
s.reqMap["session"], ok = chBuf.Get(int(sessionIDLen), true)
if !ok {
// Not enough data for session ID
m := internal.ParseTLSClientHello(chBuf)
if m == nil {
return utils.LSMActionCancel
}
cipherSuitesLen, ok := chBuf.GetUint16(false, true)
if !ok {
// Not enough data for cipher suites length
return utils.LSMActionCancel
}
if cipherSuitesLen%2 != 0 {
// Cipher suites are 2 bytes each, so must be even
return utils.LSMActionCancel
}
ciphers := make([]uint16, cipherSuitesLen/2)
for i := range ciphers {
ciphers[i], ok = chBuf.GetUint16(false, true)
if !ok {
return utils.LSMActionCancel
}
}
s.reqMap["ciphers"] = ciphers
compressionMethodsLen, ok := chBuf.GetByte(true)
if !ok {
// Not enough data for compression methods length
return utils.LSMActionCancel
}
// Compression methods are 1 byte each, we just put a byte slice here
s.reqMap["compression"], ok = chBuf.Get(int(compressionMethodsLen), true)
if !ok {
// Not enough data for compression methods
return utils.LSMActionCancel
}
extsLen, ok := chBuf.GetUint16(false, true)
if !ok {
// No extensions, I guess it's possible?
} else {
s.reqUpdated = true
s.reqMap = m
return utils.LSMActionNext
}
extBuf, ok := chBuf.GetSubBuffer(int(extsLen), true)
if !ok {
// Not enough data for extensions
return utils.LSMActionCancel
}
for extBuf.Len() > 0 {
extType, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension type
return utils.LSMActionCancel
}
extLen, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension length
return utils.LSMActionCancel
}
extDataBuf, ok := extBuf.GetSubBuffer(int(extLen), true)
if !ok || !s.handleExtensions(extType, extDataBuf, s.reqMap) {
// Not enough data for extension data, or invalid extension
return utils.LSMActionCancel
}
}
return utils.LSMActionNext
}
func (s *tlsStream) parseServerHello() utils.LSMAction {
@ -218,131 +159,14 @@ func (s *tlsStream) parseServerHello() utils.LSMAction {
// Not a full server hello yet
return utils.LSMActionPause
}
s.respUpdated = true
s.respMap = make(analyzer.PropMap)
// Version, random & session ID length combined are within 35 bytes,
// so no need for bounds checking
s.respMap["version"], _ = shBuf.GetUint16(false, true)
s.respMap["random"], _ = shBuf.Get(32, true)
sessionIDLen, _ := shBuf.GetByte(true)
s.respMap["session"], ok = shBuf.Get(int(sessionIDLen), true)
if !ok {
// Not enough data for session ID
m := internal.ParseTLSServerHello(shBuf)
if m == nil {
return utils.LSMActionCancel
}
cipherSuite, ok := shBuf.GetUint16(false, true)
if !ok {
// Not enough data for cipher suite
return utils.LSMActionCancel
}
s.respMap["cipher"] = cipherSuite
compressionMethod, ok := shBuf.GetByte(true)
if !ok {
// Not enough data for compression method
return utils.LSMActionCancel
}
s.respMap["compression"] = compressionMethod
extsLen, ok := shBuf.GetUint16(false, true)
if !ok {
// No extensions, I guess it's possible?
} else {
s.respUpdated = true
s.respMap = m
return utils.LSMActionNext
}
extBuf, ok := shBuf.GetSubBuffer(int(extsLen), true)
if !ok {
// Not enough data for extensions
return utils.LSMActionCancel
}
for extBuf.Len() > 0 {
extType, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension type
return utils.LSMActionCancel
}
extLen, ok := extBuf.GetUint16(false, true)
if !ok {
// Not enough data for extension length
return utils.LSMActionCancel
}
extDataBuf, ok := extBuf.GetSubBuffer(int(extLen), true)
if !ok || !s.handleExtensions(extType, extDataBuf, s.respMap) {
// Not enough data for extension data, or invalid extension
return utils.LSMActionCancel
}
}
return utils.LSMActionNext
}
func (s *tlsStream) handleExtensions(extType uint16, extDataBuf *utils.ByteBuffer, m analyzer.PropMap) bool {
switch extType {
case 0x0000: // SNI
ok := extDataBuf.Skip(2) // Ignore list length, we only care about the first entry for now
if !ok {
// Not enough data for list length
return false
}
sniType, ok := extDataBuf.GetByte(true)
if !ok || sniType != 0 {
// Not enough data for SNI type, or not hostname
return false
}
sniLen, ok := extDataBuf.GetUint16(false, true)
if !ok {
// Not enough data for SNI length
return false
}
m["sni"], ok = extDataBuf.GetString(int(sniLen), true)
if !ok {
// Not enough data for SNI
return false
}
case 0x0010: // ALPN
ok := extDataBuf.Skip(2) // Ignore list length, as we read until the end
if !ok {
// Not enough data for list length
return false
}
var alpnList []string
for extDataBuf.Len() > 0 {
alpnLen, ok := extDataBuf.GetByte(true)
if !ok {
// Not enough data for ALPN length
return false
}
alpn, ok := extDataBuf.GetString(int(alpnLen), true)
if !ok {
// Not enough data for ALPN
return false
}
alpnList = append(alpnList, alpn)
}
m["alpn"] = alpnList
case 0x002b: // Supported Versions
if extDataBuf.Len() == 2 {
// Server only selects one version
m["supported_versions"], _ = extDataBuf.GetUint16(false, true)
} else {
// Client sends a list of versions
ok := extDataBuf.Skip(1) // Ignore list length, as we read until the end
if !ok {
// Not enough data for list length
return false
}
var versions []uint16
for extDataBuf.Len() > 0 {
ver, ok := extDataBuf.GetUint16(false, true)
if !ok {
// Not enough data for version
return false
}
versions = append(versions, ver)
}
m["supported_versions"] = versions
}
case 0xfe0d: // ECH
// We can't parse ECH for now, just set a flag
m["ech"] = true
}
return true
}
func (s *tlsStream) Close(limited bool) *analyzer.PropUpdate {

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@ -0,0 +1,31 @@
Author:: Cuong Manh Le <cuong.manhle.vn@gmail.com>
Copyright:: Copyright (c) 2023, Cuong Manh Le
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided
with the distribution.
* Neither the name of the @organization@ nor the names of its
contributors may be used to endorse or promote products derived
from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL LE MANH CUONG
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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@ -0,0 +1 @@
The code here is from https://github.com/cuonglm/quicsni with various modifications.

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@ -0,0 +1,105 @@
package quic
import (
"bytes"
"encoding/binary"
"errors"
"io"
"github.com/quic-go/quic-go/quicvarint"
)
// The Header represents a QUIC header.
type Header struct {
Type uint8
Version uint32
SrcConnectionID []byte
DestConnectionID []byte
Length int64
Token []byte
}
// ParseInitialHeader parses the initial packet of a QUIC connection,
// return the initial header and number of bytes read so far.
func ParseInitialHeader(data []byte) (*Header, int64, error) {
br := bytes.NewReader(data)
hdr, err := parseLongHeader(br)
if err != nil {
return nil, 0, err
}
n := int64(len(data) - br.Len())
return hdr, n, nil
}
func parseLongHeader(b *bytes.Reader) (*Header, error) {
typeByte, err := b.ReadByte()
if err != nil {
return nil, err
}
h := &Header{}
ver, err := beUint32(b)
if err != nil {
return nil, err
}
h.Version = ver
if h.Version != 0 && typeByte&0x40 == 0 {
return nil, errors.New("not a QUIC packet")
}
destConnIDLen, err := b.ReadByte()
if err != nil {
return nil, err
}
h.DestConnectionID = make([]byte, int(destConnIDLen))
if err := readConnectionID(b, h.DestConnectionID); err != nil {
return nil, err
}
srcConnIDLen, err := b.ReadByte()
if err != nil {
return nil, err
}
h.SrcConnectionID = make([]byte, int(srcConnIDLen))
if err := readConnectionID(b, h.SrcConnectionID); err != nil {
return nil, err
}
initialPacketType := byte(0b00)
if h.Version == V2 {
initialPacketType = 0b01
}
if (typeByte >> 4 & 0b11) == initialPacketType {
tokenLen, err := quicvarint.Read(b)
if err != nil {
return nil, err
}
if tokenLen > uint64(b.Len()) {
return nil, io.EOF
}
h.Token = make([]byte, tokenLen)
if _, err := io.ReadFull(b, h.Token); err != nil {
return nil, err
}
}
pl, err := quicvarint.Read(b)
if err != nil {
return nil, err
}
h.Length = int64(pl)
return h, err
}
func readConnectionID(r io.Reader, cid []byte) error {
_, err := io.ReadFull(r, cid)
if err == io.ErrUnexpectedEOF {
return io.EOF
}
return nil
}
func beUint32(r io.Reader) (uint32, error) {
b := make([]byte, 4)
if _, err := io.ReadFull(r, b); err != nil {
return 0, err
}
return binary.BigEndian.Uint32(b), nil
}

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@ -0,0 +1,193 @@
package quic
import (
"crypto"
"crypto/aes"
"crypto/cipher"
"crypto/sha256"
"crypto/tls"
"encoding/binary"
"errors"
"fmt"
"hash"
"golang.org/x/crypto/chacha20"
"golang.org/x/crypto/chacha20poly1305"
"golang.org/x/crypto/cryptobyte"
"golang.org/x/crypto/hkdf"
)
// NewProtectionKey creates a new ProtectionKey.
func NewProtectionKey(suite uint16, secret []byte, v uint32) (*ProtectionKey, error) {
return newProtectionKey(suite, secret, v)
}
// NewInitialProtectionKey is like NewProtectionKey, but the returned protection key
// is used for encrypt/decrypt Initial Packet only.
//
// See: https://datatracker.ietf.org/doc/html/draft-ietf-quic-tls-32#name-initial-secrets
func NewInitialProtectionKey(secret []byte, v uint32) (*ProtectionKey, error) {
return NewProtectionKey(tls.TLS_AES_128_GCM_SHA256, secret, v)
}
// NewPacketProtector creates a new PacketProtector.
func NewPacketProtector(key *ProtectionKey) *PacketProtector {
return &PacketProtector{key: key}
}
// PacketProtector is used for protecting a QUIC packet.
//
// See: https://www.rfc-editor.org/rfc/rfc9001.html#name-packet-protection
type PacketProtector struct {
key *ProtectionKey
}
// UnProtect decrypts a QUIC packet.
func (pp *PacketProtector) UnProtect(packet []byte, pnOffset, pnMax int64) ([]byte, error) {
if isLongHeader(packet[0]) && int64(len(packet)) < pnOffset+4+16 {
return nil, errors.New("packet with long header is too small")
}
// https://www.rfc-editor.org/rfc/rfc9001.html#name-header-protection-sample
sampleOffset := pnOffset + 4
sample := packet[sampleOffset : sampleOffset+16]
// https://www.rfc-editor.org/rfc/rfc9001.html#name-header-protection-applicati
mask := pp.key.headerProtection(sample)
if isLongHeader(packet[0]) {
// Long header: 4 bits masked
packet[0] ^= mask[0] & 0x0f
} else {
// Short header: 5 bits masked
packet[0] ^= mask[0] & 0x1f
}
pnLen := packet[0]&0x3 + 1
pn := int64(0)
for i := uint8(0); i < pnLen; i++ {
packet[pnOffset:][i] ^= mask[1+i]
pn = (pn << 8) | int64(packet[pnOffset:][i])
}
pn = decodePacketNumber(pnMax, pn, pnLen)
hdr := packet[:pnOffset+int64(pnLen)]
payload := packet[pnOffset:][pnLen:]
dec, err := pp.key.aead.Open(payload[:0], pp.key.nonce(pn), payload, hdr)
if err != nil {
return nil, fmt.Errorf("decryption failed: %w", err)
}
return dec, nil
}
// ProtectionKey is the key used to protect a QUIC packet.
type ProtectionKey struct {
aead cipher.AEAD
headerProtection func(sample []byte) (mask []byte)
iv []byte
}
// https://datatracker.ietf.org/doc/html/draft-ietf-quic-tls-32#name-aead-usage
//
// "The 62 bits of the reconstructed QUIC packet number in network byte order are
// left-padded with zeros to the size of the IV. The exclusive OR of the padded
// packet number and the IV forms the AEAD nonce."
func (pk *ProtectionKey) nonce(pn int64) []byte {
nonce := make([]byte, len(pk.iv))
binary.BigEndian.PutUint64(nonce[len(nonce)-8:], uint64(pn))
for i := range pk.iv {
nonce[i] ^= pk.iv[i]
}
return nonce
}
func newProtectionKey(suite uint16, secret []byte, v uint32) (*ProtectionKey, error) {
switch suite {
case tls.TLS_AES_128_GCM_SHA256:
key := hkdfExpandLabel(crypto.SHA256.New, secret, keyLabel(v), nil, 16)
c, err := aes.NewCipher(key)
if err != nil {
panic(err)
}
aead, err := cipher.NewGCM(c)
if err != nil {
panic(err)
}
iv := hkdfExpandLabel(crypto.SHA256.New, secret, ivLabel(v), nil, aead.NonceSize())
hpKey := hkdfExpandLabel(crypto.SHA256.New, secret, headerProtectionLabel(v), nil, 16)
hp, err := aes.NewCipher(hpKey)
if err != nil {
panic(err)
}
k := &ProtectionKey{}
k.aead = aead
// https://datatracker.ietf.org/doc/html/draft-ietf-quic-tls-32#name-aes-based-header-protection
k.headerProtection = func(sample []byte) []byte {
mask := make([]byte, hp.BlockSize())
hp.Encrypt(mask, sample)
return mask
}
k.iv = iv
return k, nil
case tls.TLS_CHACHA20_POLY1305_SHA256:
key := hkdfExpandLabel(crypto.SHA256.New, secret, keyLabel(v), nil, chacha20poly1305.KeySize)
aead, err := chacha20poly1305.New(key)
if err != nil {
return nil, err
}
iv := hkdfExpandLabel(crypto.SHA256.New, secret, ivLabel(v), nil, aead.NonceSize())
hpKey := hkdfExpandLabel(sha256.New, secret, headerProtectionLabel(v), nil, chacha20.KeySize)
k := &ProtectionKey{}
k.aead = aead
// https://datatracker.ietf.org/doc/html/draft-ietf-quic-tls-32#name-chacha20-based-header-prote
k.headerProtection = func(sample []byte) []byte {
nonce := sample[4:16]
c, err := chacha20.NewUnauthenticatedCipher(hpKey, nonce)
if err != nil {
panic(err)
}
c.SetCounter(binary.LittleEndian.Uint32(sample[:4]))
mask := make([]byte, 5)
c.XORKeyStream(mask, mask)
return mask
}
k.iv = iv
return k, nil
}
return nil, errors.New("not supported cipher suite")
}
// decodePacketNumber decode the packet number after header protection removed.
//
// See: https://datatracker.ietf.org/doc/html/draft-ietf-quic-transport-32#section-appendix.a
func decodePacketNumber(largest, truncated int64, nbits uint8) int64 {
expected := largest + 1
win := int64(1 << (nbits * 8))
hwin := win / 2
mask := win - 1
candidate := (expected &^ mask) | truncated
switch {
case candidate <= expected-hwin && candidate < (1<<62)-win:
return candidate + win
case candidate > expected+hwin && candidate >= win:
return candidate - win
}
return candidate
}
// Copied from crypto/tls/key_schedule.go.
func hkdfExpandLabel(hash func() hash.Hash, secret []byte, label string, context []byte, length int) []byte {
var hkdfLabel cryptobyte.Builder
hkdfLabel.AddUint16(uint16(length))
hkdfLabel.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
b.AddBytes([]byte("tls13 "))
b.AddBytes([]byte(label))
})
hkdfLabel.AddUint8LengthPrefixed(func(b *cryptobyte.Builder) {
b.AddBytes(context)
})
out := make([]byte, length)
n, err := hkdf.Expand(hash, secret, hkdfLabel.BytesOrPanic()).Read(out)
if err != nil || n != length {
panic("quic: HKDF-Expand-Label invocation failed unexpectedly")
}
return out
}

View File

@ -0,0 +1,94 @@
package quic
import (
"bytes"
"crypto"
"crypto/tls"
"encoding/hex"
"strings"
"testing"
"unicode"
"golang.org/x/crypto/hkdf"
)
func TestInitialPacketProtector_UnProtect(t *testing.T) {
// https://datatracker.ietf.org/doc/html/draft-ietf-quic-tls-32#name-server-initial
protect := mustHexDecodeString(`
c7ff0000200008f067a5502a4262b500 4075fb12ff07823a5d24534d906ce4c7
6782a2167e3479c0f7f6395dc2c91676 302fe6d70bb7cbeb117b4ddb7d173498
44fd61dae200b8338e1b932976b61d91 e64a02e9e0ee72e3a6f63aba4ceeeec5
be2f24f2d86027572943533846caa13e 6f163fb257473d0eda5047360fd4a47e
fd8142fafc0f76
`)
unProtect := mustHexDecodeString(`
02000000000600405a020000560303ee fce7f7b37ba1d1632e96677825ddf739
88cfc79825df566dc5430b9a045a1200 130100002e00330024001d00209d3c94
0d89690b84d08a60993c144eca684d10 81287c834d5311bcf32bb9da1a002b00
020304header.go
`)
connID := mustHexDecodeString(`8394c8f03e515708`)
packet := append([]byte{}, protect...)
hdr, offset, err := ParseInitialHeader(packet)
if err != nil {
t.Fatal(err)
}
initialSecret := hkdf.Extract(crypto.SHA256.New, connID, getSalt(hdr.Version))
serverSecret := hkdfExpandLabel(crypto.SHA256.New, initialSecret, "server in", []byte{}, crypto.SHA256.Size())
key, err := NewInitialProtectionKey(serverSecret, hdr.Version)
if err != nil {
t.Fatal(err)
}
pp := NewPacketProtector(key)
got, err := pp.UnProtect(protect, offset, 1)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(got, unProtect) {
t.Error("UnProtect returns wrong result")
}
}
func TestPacketProtectorShortHeader_UnProtect(t *testing.T) {
// https://datatracker.ietf.org/doc/html/draft-ietf-quic-tls-32#name-chacha20-poly1305-short-hea
protect := mustHexDecodeString(`4cfe4189655e5cd55c41f69080575d7999c25a5bfb`)
unProtect := mustHexDecodeString(`01`)
hdr := mustHexDecodeString(`4200bff4`)
secret := mustHexDecodeString(`9ac312a7f877468ebe69422748ad00a1 5443f18203a07d6060f688f30f21632b`)
k, err := NewProtectionKey(tls.TLS_CHACHA20_POLY1305_SHA256, secret, V1)
if err != nil {
t.Fatal(err)
}
pnLen := int(hdr[0]&0x03) + 1
offset := len(hdr) - pnLen
pp := NewPacketProtector(k)
got, err := pp.UnProtect(protect, int64(offset), 654360564)
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(got, unProtect) {
t.Error("UnProtect returns wrong result")
}
}
func mustHexDecodeString(s string) []byte {
b, err := hex.DecodeString(normalizeHex(s))
if err != nil {
panic(err)
}
return b
}
func normalizeHex(s string) string {
return strings.Map(func(c rune) rune {
if unicode.IsSpace(c) {
return -1
}
return c
}, s)
}

View File

@ -0,0 +1,122 @@
package quic
import (
"bytes"
"crypto"
"errors"
"fmt"
"io"
"sort"
"github.com/quic-go/quic-go/quicvarint"
"golang.org/x/crypto/hkdf"
)
func ReadCryptoPayload(packet []byte) ([]byte, error) {
hdr, offset, err := ParseInitialHeader(packet)
if err != nil {
return nil, err
}
// Some sanity checks
if hdr.Version != V1 && hdr.Version != V2 {
return nil, fmt.Errorf("unsupported version: %x", hdr.Version)
}
if offset == 0 || hdr.Length == 0 {
return nil, errors.New("invalid packet")
}
initialSecret := hkdf.Extract(crypto.SHA256.New, hdr.DestConnectionID, getSalt(hdr.Version))
clientSecret := hkdfExpandLabel(crypto.SHA256.New, initialSecret, "client in", []byte{}, crypto.SHA256.Size())
key, err := NewInitialProtectionKey(clientSecret, hdr.Version)
if err != nil {
return nil, fmt.Errorf("NewInitialProtectionKey: %w", err)
}
pp := NewPacketProtector(key)
// https://datatracker.ietf.org/doc/html/draft-ietf-quic-tls-32#name-client-initial
//
// "The unprotected header includes the connection ID and a 4-byte packet number encoding for a packet number of 2"
if int64(len(packet)) < offset+hdr.Length {
return nil, fmt.Errorf("packet is too short: %d < %d", len(packet), offset+hdr.Length)
}
unProtectedPayload, err := pp.UnProtect(packet[:offset+hdr.Length], offset, 2)
if err != nil {
return nil, err
}
frs, err := extractCryptoFrames(bytes.NewReader(unProtectedPayload))
if err != nil {
return nil, err
}
data := assembleCryptoFrames(frs)
if data == nil {
return nil, errors.New("unable to assemble crypto frames")
}
return data, nil
}
const (
paddingFrameType = 0x00
pingFrameType = 0x01
cryptoFrameType = 0x06
)
type cryptoFrame struct {
Offset int64
Data []byte
}
func extractCryptoFrames(r *bytes.Reader) ([]cryptoFrame, error) {
var frames []cryptoFrame
for r.Len() > 0 {
typ, err := quicvarint.Read(r)
if err != nil {
return nil, err
}
if typ == paddingFrameType || typ == pingFrameType {
continue
}
if typ != cryptoFrameType {
return nil, fmt.Errorf("encountered unexpected frame type: %d", typ)
}
var frame cryptoFrame
offset, err := quicvarint.Read(r)
if err != nil {
return nil, err
}
frame.Offset = int64(offset)
dataLen, err := quicvarint.Read(r)
if err != nil {
return nil, err
}
frame.Data = make([]byte, dataLen)
if _, err := io.ReadFull(r, frame.Data); err != nil {
return nil, err
}
frames = append(frames, frame)
}
return frames, nil
}
// assembleCryptoFrames assembles multiple crypto frames into a single slice (if possible).
// It returns an error if the frames cannot be assembled. This can happen if the frames are not contiguous.
func assembleCryptoFrames(frames []cryptoFrame) []byte {
if len(frames) == 0 {
return nil
}
if len(frames) == 1 {
return frames[0].Data
}
// sort the frames by offset
sort.Slice(frames, func(i, j int) bool { return frames[i].Offset < frames[j].Offset })
// check if the frames are contiguous
for i := 1; i < len(frames); i++ {
if frames[i].Offset != frames[i-1].Offset+int64(len(frames[i-1].Data)) {
return nil
}
}
// concatenate the frames
data := make([]byte, frames[len(frames)-1].Offset+int64(len(frames[len(frames)-1].Data)))
for _, frame := range frames {
copy(data[frame.Offset:], frame.Data)
}
return data
}

View File

@ -0,0 +1,59 @@
package quic
const (
V1 uint32 = 0x1
V2 uint32 = 0x6b3343cf
hkdfLabelKeyV1 = "quic key"
hkdfLabelKeyV2 = "quicv2 key"
hkdfLabelIVV1 = "quic iv"
hkdfLabelIVV2 = "quicv2 iv"
hkdfLabelHPV1 = "quic hp"
hkdfLabelHPV2 = "quicv2 hp"
)
var (
quicSaltOld = []byte{0xaf, 0xbf, 0xec, 0x28, 0x99, 0x93, 0xd2, 0x4c, 0x9e, 0x97, 0x86, 0xf1, 0x9c, 0x61, 0x11, 0xe0, 0x43, 0x90, 0xa8, 0x99}
// https://www.rfc-editor.org/rfc/rfc9001.html#name-initial-secrets
quicSaltV1 = []byte{0x38, 0x76, 0x2c, 0xf7, 0xf5, 0x59, 0x34, 0xb3, 0x4d, 0x17, 0x9a, 0xe6, 0xa4, 0xc8, 0x0c, 0xad, 0xcc, 0xbb, 0x7f, 0x0a}
// https://www.ietf.org/archive/id/draft-ietf-quic-v2-10.html#name-initial-salt-2
quicSaltV2 = []byte{0x0d, 0xed, 0xe3, 0xde, 0xf7, 0x00, 0xa6, 0xdb, 0x81, 0x93, 0x81, 0xbe, 0x6e, 0x26, 0x9d, 0xcb, 0xf9, 0xbd, 0x2e, 0xd9}
)
// isLongHeader reports whether b is the first byte of a long header packet.
func isLongHeader(b byte) bool {
return b&0x80 > 0
}
func getSalt(v uint32) []byte {
switch v {
case V1:
return quicSaltV1
case V2:
return quicSaltV2
}
return quicSaltOld
}
func keyLabel(v uint32) string {
kl := hkdfLabelKeyV1
if v == V2 {
kl = hkdfLabelKeyV2
}
return kl
}
func ivLabel(v uint32) string {
ivl := hkdfLabelIVV1
if v == V2 {
ivl = hkdfLabelIVV2
}
return ivl
}
func headerProtectionLabel(v uint32) string {
if v == V2 {
return hkdfLabelHPV2
}
return hkdfLabelHPV1
}

82
analyzer/udp/quic.go Normal file
View File

@ -0,0 +1,82 @@
package udp
import (
"github.com/apernet/OpenGFW/analyzer"
"github.com/apernet/OpenGFW/analyzer/internal"
"github.com/apernet/OpenGFW/analyzer/udp/internal/quic"
"github.com/apernet/OpenGFW/analyzer/utils"
)
const (
quicInvalidCountThreshold = 4
)
var (
_ analyzer.UDPAnalyzer = (*QUICAnalyzer)(nil)
_ analyzer.UDPStream = (*quicStream)(nil)
)
type QUICAnalyzer struct{}
func (a *QUICAnalyzer) Name() string {
return "quic"
}
func (a *QUICAnalyzer) Limit() int {
return 0
}
func (a *QUICAnalyzer) NewUDP(info analyzer.UDPInfo, logger analyzer.Logger) analyzer.UDPStream {
return &quicStream{logger: logger}
}
type quicStream struct {
logger analyzer.Logger
invalidCount int
}
func (s *quicStream) Feed(rev bool, data []byte) (u *analyzer.PropUpdate, done bool) {
if rev {
// We don't support server direction for now
s.invalidCount++
return nil, s.invalidCount >= quicInvalidCountThreshold
}
pl, err := quic.ReadCryptoPayload(data)
if err != nil || len(pl) < 4 {
s.invalidCount++
return nil, s.invalidCount >= quicInvalidCountThreshold
}
// Should be a TLS client hello
if pl[0] != 0x01 {
// Not a client hello
s.invalidCount++
return nil, s.invalidCount >= quicInvalidCountThreshold
}
chLen := int(pl[1])<<16 | int(pl[2])<<8 | int(pl[3])
if chLen < 41 {
// 2 (Protocol Version) +
// 32 (Random) +
// 1 (Session ID Length) +
// 2 (Cipher Suites Length) +_ws.col.protocol == "TLSv1.3"
// 2 (Cipher Suite) +
// 1 (Compression Methods Length) +
// 1 (Compression Method) +
// No extensions
// This should be the bare minimum for a client hello
s.invalidCount++
return nil, s.invalidCount >= quicInvalidCountThreshold
}
m := internal.ParseTLSClientHello(&utils.ByteBuffer{Buf: pl[4:]})
if m == nil {
s.invalidCount++
return nil, s.invalidCount >= quicInvalidCountThreshold
}
return &analyzer.PropUpdate{
Type: analyzer.PropUpdateMerge,
M: analyzer.PropMap{"req": m},
}, true
}
func (s *quicStream) Close(limited bool) *analyzer.PropUpdate {
return nil
}

View File

@ -93,6 +93,7 @@ var analyzers = []analyzer.Analyzer{
&tcp.TLSAnalyzer{},
&tcp.TrojanAnalyzer{},
&udp.DNSAnalyzer{},
&udp.QUICAnalyzer{},
&udp.WireGuardAnalyzer{},
}

6
go.mod
View File

@ -1,6 +1,6 @@
module github.com/apernet/OpenGFW
go 1.20
go 1.21
require (
github.com/bwmarrin/snowflake v0.3.0
@ -10,10 +10,12 @@ require (
github.com/google/gopacket v1.1.19
github.com/hashicorp/golang-lru/v2 v2.0.7
github.com/mdlayher/netlink v1.6.0
github.com/quic-go/quic-go v0.41.0
github.com/spf13/cobra v1.8.0
github.com/spf13/viper v1.18.2
github.com/stretchr/testify v1.8.4
go.uber.org/zap v1.26.0
golang.org/x/crypto v0.19.0
google.golang.org/protobuf v1.31.0
gopkg.in/yaml.v3 v3.0.1
)
@ -41,7 +43,7 @@ require (
golang.org/x/exp v0.0.0-20230905200255-921286631fa9 // indirect
golang.org/x/net v0.19.0 // indirect
golang.org/x/sync v0.5.0 // indirect
golang.org/x/sys v0.15.0 // indirect
golang.org/x/sys v0.17.0 // indirect
golang.org/x/text v0.14.0 // indirect
gopkg.in/ini.v1 v1.67.0 // indirect
)

26
go.sum
View File

@ -12,8 +12,13 @@ github.com/expr-lang/expr v1.15.7/go.mod h1:uCkhfG+x7fcZ5A5sXHKuQ07jGZRl6J0FCAaf
github.com/florianl/go-nfqueue v1.3.2-0.20231218173729-f2bdeb033acf h1:NqGS3vTHzVENbIfd87cXZwdpO6MB2R1PjHMJLi4Z3ow=
github.com/florianl/go-nfqueue v1.3.2-0.20231218173729-f2bdeb033acf/go.mod h1:eSnAor2YCfMCVYrVNEhkLGN/r1L+J4uDjc0EUy0tfq4=
github.com/frankban/quicktest v1.14.6 h1:7Xjx+VpznH+oBnejlPUj8oUpdxnVs4f8XU8WnHkI4W8=
github.com/frankban/quicktest v1.14.6/go.mod h1:4ptaffx2x8+WTWXmUCuVU6aPUX1/Mz7zb5vbUoiM6w0=
github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
@ -22,6 +27,8 @@ github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/google/go-cmp v0.5.9/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
github.com/google/gopacket v1.1.19 h1:ves8RnFZPGiFnTS0uPQStjwru6uO6h+nlr9j6fL7kF8=
github.com/google/gopacket v1.1.19/go.mod h1:iJ8V8n6KS+z2U1A8pUwu8bW5SyEMkXJB8Yo/Vo+TKTo=
github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38 h1:yAJXTCF9TqKcTiHJAE8dj7HMvPfh66eeA2JYW7eFpSE=
github.com/google/pprof v0.0.0-20210407192527-94a9f03dee38/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/hashicorp/golang-lru/v2 v2.0.7 h1:a+bsQ5rvGLjzHuww6tVxozPZFVghXaHOwFs4luLUK2k=
github.com/hashicorp/golang-lru/v2 v2.0.7/go.mod h1:QeFd9opnmA6QUJc5vARoKUSoFhyfM2/ZepoAG6RGpeM=
github.com/hashicorp/hcl v1.0.0 h1:0Anlzjpi4vEasTeNFn2mLJgTSwt0+6sfsiTG8qcWGx4=
@ -31,7 +38,9 @@ github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLf
github.com/josharian/native v1.0.0 h1:Ts/E8zCSEsG17dUqv7joXJFybuMLjQfWE04tsBODTxk=
github.com/josharian/native v1.0.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
github.com/magiconair/properties v1.8.7 h1:IeQXZAiQcpL9mgcAe1Nu6cX9LLw6ExEHKjN0VQdvPDY=
github.com/magiconair/properties v1.8.7/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
github.com/mdlayher/netlink v1.6.0 h1:rOHX5yl7qnlpiVkFWoqccueppMtXzeziFjWAjLg6sz0=
@ -40,12 +49,19 @@ github.com/mdlayher/socket v0.1.1 h1:q3uOGirUPfAV2MUoaC7BavjQ154J7+JOkTWyiV+intI
github.com/mdlayher/socket v0.1.1/go.mod h1:mYV5YIZAfHh4dzDVzI8x8tWLWCliuX8Mon5Awbj+qDs=
github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
github.com/onsi/ginkgo/v2 v2.9.5 h1:+6Hr4uxzP4XIUyAkg61dWBw8lb/gc4/X5luuxN/EC+Q=
github.com/onsi/ginkgo/v2 v2.9.5/go.mod h1:tvAoo1QUJwNEU2ITftXTpR7R1RbCzoZUOs3RonqW57k=
github.com/onsi/gomega v1.27.6 h1:ENqfyGeS5AX/rlXDd/ETokDz93u0YufY1Pgxuy/PvWE=
github.com/onsi/gomega v1.27.6/go.mod h1:PIQNjfQwkP3aQAH7lf7j87O/5FiNr+ZR8+ipb+qQlhg=
github.com/pelletier/go-toml/v2 v2.1.0 h1:FnwAJ4oYMvbT/34k9zzHuZNrhlz48GB3/s6at6/MHO4=
github.com/pelletier/go-toml/v2 v2.1.0/go.mod h1:tJU2Z3ZkXwnxa4DPO899bsyIoywizdUvyaeZurnPPDc=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/quic-go/quic-go v0.41.0 h1:aD8MmHfgqTURWNJy48IYFg2OnxwHT3JL7ahGs73lb4k=
github.com/quic-go/quic-go v0.41.0/go.mod h1:qCkNjqczPEvgsOnxZ0eCD14lv+B2LHlFAB++CNOh9hA=
github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZVejAe8=
github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
github.com/sagikazarmark/locafero v0.4.0 h1:HApY1R9zGo4DBgr7dqsTH/JJxLTTsOt7u6keLGt6kNQ=
github.com/sagikazarmark/locafero v0.4.0/go.mod h1:Pe1W6UlPYUk/+wc/6KFhbORCfqzgYEpgQ3O5fPuL3H4=
@ -73,12 +89,15 @@ github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXl
github.com/subosito/gotenv v1.6.0 h1:9NlTDc1FTs4qu0DDq7AEtTPNw6SVm7uBMsUCUjABIf8=
github.com/subosito/gotenv v1.6.0/go.mod h1:Dk4QP5c2W3ibzajGcXpNraDfq2IrhjMIvMSWPKKo0FU=
go.uber.org/goleak v1.2.0 h1:xqgm/S+aQvhWFTtR0XK3Jvg7z8kGV8P4X14IzwN3Eqk=
go.uber.org/goleak v1.2.0/go.mod h1:XJYK+MuIchqpmGmUSAzotztawfKvYLUIgg7guXrwVUo=
go.uber.org/multierr v1.11.0 h1:blXXJkSxSSfBVBlC76pxqeO+LN3aDfLQo+309xJstO0=
go.uber.org/multierr v1.11.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y=
go.uber.org/zap v1.26.0 h1:sI7k6L95XOKS281NhVKOFCUNIvv9e0w4BF8N3u+tCRo=
go.uber.org/zap v1.26.0/go.mod h1:dtElttAiwGvoJ/vj4IwHBS/gXsEu/pZ50mUIRWuG0so=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
golang.org/x/crypto v0.19.0 h1:ENy+Az/9Y1vSrlrvBSyna3PITt4tiZLf7sgCjZBX7Wo=
golang.org/x/crypto v0.19.0/go.mod h1:Iy9bg/ha4yyC70EfRS8jz+B6ybOBKMaSxLj6P6oBDfU=
golang.org/x/exp v0.0.0-20230905200255-921286631fa9 h1:GoHiUyI/Tp2nVkLI2mCxVkOjsbSXD66ic0XW0js0R9g=
golang.org/x/exp v0.0.0-20230905200255-921286631fa9/go.mod h1:S2oDrQGGwySpoQPVqRShND87VCbxmc6bL1Yd2oYrm6k=
golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
@ -101,8 +120,8 @@ golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBc
golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20211216021012-1d35b9e2eb4e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.0.0-20220128215802-99c3d69c2c27/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.15.0 h1:h48lPFYpsTvQJZF4EKyI4aLHaev3CxivZmv7yZig9pc=
golang.org/x/sys v0.15.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@ -112,6 +131,8 @@ golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20200130002326-2f3ba24bd6e7/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/tools v0.13.0 h1:Iey4qkscZuv0VvIt8E0neZjtPVQFSc870HQ448QgEmQ=
golang.org/x/tools v0.13.0/go.mod h1:HvlwmtVNQAhOuCjW7xxvovg8wbNq7LwfXh/k7wXUl58=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@ -120,6 +141,7 @@ google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs
google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=