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Integrate BACKBEAT SDK and resolve KACHING license validation

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Major integrations and fixes:
- Added BACKBEAT SDK integration for P2P operation timing
- Implemented beat-aware status tracking for distributed operations
- Added Docker secrets support for secure license management
- Resolved KACHING license validation via HTTPS/TLS
- Updated docker-compose configuration for clean stack deployment
- Disabled rollback policies to prevent deployment failures
- Added license credential storage (CHORUS-DEV-MULTI-001)

Technical improvements:
- BACKBEAT P2P operation tracking with phase management
- Enhanced configuration system with file-based secrets
- Improved error handling for license validation
- Clean separation of KACHING and CHORUS deployment stacks

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
anthonyrawlins
2025-09-06 07:56:26 +10:00
parent 543ab216f9
commit 9bdcbe0447
4730 changed files with 1480093 additions and 1916 deletions
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229
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/LICENSE.md generated vendored Normal file
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The contents of this repository are Copyright (c) corresponding authors and
contributors, licensed under the `Permissive License Stack` meaning either of:
- Apache-2.0 Software License: https://www.apache.org/licenses/LICENSE-2.0
([...4tr2kfsq](https://gateway.ipfs.io/ipfs/bafkreiankqxazcae4onkp436wag2lj3ccso4nawxqkkfckd6cg4tr2kfsq))
- MIT Software License: https://opensource.org/licenses/MIT
([...vljevcba](https://gateway.ipfs.io/ipfs/bafkreiepofszg4gfe2gzuhojmksgemsub2h4uy2gewdnr35kswvljevcba))
You may not use the contents of this repository except in compliance
with one of the listed Licenses. For an extended clarification of the
intent behind the choice of Licensing please refer to
https://protocol.ai/blog/announcing-the-permissive-license-stack/
Unless required by applicable law or agreed to in writing, software
distributed under the terms listed in this notice is distributed on
an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
either express or implied. See each License for the specific language
governing permissions and limitations under that License.
<!--- SPDX-License-Identifier: Apache-2.0 OR MIT -->
`SPDX-License-Identifier: Apache-2.0 OR MIT`
Verbatim copies of both licenses are included below:
<details><summary>Apache-2.0 Software License</summary>
```
Apache License
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http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
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and distribution as defined by Sections 1 through 9 of this document.
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outstanding shares, or (iii) beneficial ownership of such entity.
"You" (or "Your") shall mean an individual or Legal Entity
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including but not limited to software source code, documentation
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"Object" form shall mean any form resulting from mechanical
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"Work" shall mean the work of authorship, whether in Source or
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```
</details>
<details><summary>MIT Software License</summary>
```
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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</details>

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vendor/github.com/libp2p/go-libp2p/p2p/security/noise/crypto.go generated vendored Normal file
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package noise
import (
"errors"
)
// encrypt calls the cipher's encryption. It encrypts the provided plaintext,
// slice-appending the ciphertext on out.
//
// Usually you want to pass a 0-len slice to this method, with enough capacity
// to accommodate the ciphertext in order to spare allocs.
//
// encrypt returns a new slice header, whose len is the length of the resulting
// ciphertext, including the authentication tag.
//
// This method will not allocate if the supplied slice is large enough to
// accommodate the encrypted data + authentication tag. If so, the returned
// slice header should be a view of the original slice.
//
// With the poly1305 MAC function that noise-libp2p uses, the authentication tag
// adds an overhead of 16 bytes.
func (s *secureSession) encrypt(out, plaintext []byte) ([]byte, error) {
if s.enc == nil {
return nil, errors.New("cannot encrypt, handshake incomplete")
}
return s.enc.Encrypt(out, nil, plaintext)
}
// decrypt calls the cipher's decryption. It decrypts the provided ciphertext,
// slice-appending the plaintext on out.
//
// Usually you want to pass a 0-len slice to this method, with enough capacity
// to accommodate the plaintext in order to spare allocs.
//
// decrypt returns a new slice header, whose len is the length of the resulting
// plaintext, without the authentication tag.
//
// This method will not allocate if the supplied slice is large enough to
// accommodate the plaintext. If so, the returned slice header should be a view
// of the original slice.
func (s *secureSession) decrypt(out, ciphertext []byte) ([]byte, error) {
if s.dec == nil {
return nil, errors.New("cannot decrypt, handshake incomplete")
}
return s.dec.Decrypt(out, nil, ciphertext)
}

297
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/handshake.go generated vendored Normal file
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package noise
import (
"context"
"crypto/rand"
"encoding/binary"
"fmt"
"hash"
"os"
"runtime/debug"
"time"
"github.com/libp2p/go-libp2p/core/crypto"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/sec"
"github.com/libp2p/go-libp2p/internal/sha256"
"github.com/libp2p/go-libp2p/p2p/security/noise/pb"
"github.com/flynn/noise"
pool "github.com/libp2p/go-buffer-pool"
"google.golang.org/protobuf/proto"
)
//go:generate protoc --go_out=. --go_opt=Mpb/payload.proto=./pb pb/payload.proto
// payloadSigPrefix is prepended to our Noise static key before signing with
// our libp2p identity key.
const payloadSigPrefix = "noise-libp2p-static-key:"
type minioSHAFn struct{}
func (h minioSHAFn) Hash() hash.Hash { return sha256.New() }
func (h minioSHAFn) HashName() string { return "SHA256" }
var shaHashFn noise.HashFunc = minioSHAFn{}
// All noise session share a fixed cipher suite
var cipherSuite = noise.NewCipherSuite(noise.DH25519, noise.CipherChaChaPoly, shaHashFn)
// runHandshake exchanges handshake messages with the remote peer to establish
// a noise-libp2p session. It blocks until the handshake completes or fails.
func (s *secureSession) runHandshake(ctx context.Context) (err error) {
defer func() {
if rerr := recover(); rerr != nil {
fmt.Fprintf(os.Stderr, "caught panic: %s\n%s\n", rerr, debug.Stack())
err = fmt.Errorf("panic in Noise handshake: %s", rerr)
}
}()
kp, err := noise.DH25519.GenerateKeypair(rand.Reader)
if err != nil {
return fmt.Errorf("error generating static keypair: %w", err)
}
cfg := noise.Config{
CipherSuite: cipherSuite,
Pattern: noise.HandshakeXX,
Initiator: s.initiator,
StaticKeypair: kp,
Prologue: s.prologue,
}
hs, err := noise.NewHandshakeState(cfg)
if err != nil {
return fmt.Errorf("error initializing handshake state: %w", err)
}
// set a deadline to complete the handshake, if one has been supplied.
// clear it after we're done.
if deadline, ok := ctx.Deadline(); ok {
if err := s.SetDeadline(deadline); err == nil {
// schedule the deadline removal once we're done handshaking.
defer s.SetDeadline(time.Time{})
}
}
// We can re-use this buffer for all handshake messages.
hbuf := pool.Get(2 << 10)
defer pool.Put(hbuf)
if s.initiator {
// stage 0 //
// Handshake Msg Len = len(DH ephemeral key)
if err := s.sendHandshakeMessage(hs, nil, hbuf); err != nil {
return fmt.Errorf("error sending handshake message: %w", err)
}
// stage 1 //
plaintext, err := s.readHandshakeMessage(hs)
if err != nil {
return fmt.Errorf("error reading handshake message: %w", err)
}
rcvdEd, err := s.handleRemoteHandshakePayload(plaintext, hs.PeerStatic())
if err != nil {
return err
}
if s.initiatorEarlyDataHandler != nil {
if err := s.initiatorEarlyDataHandler.Received(ctx, s.insecureConn, rcvdEd); err != nil {
return err
}
}
// stage 2 //
// Handshake Msg Len = len(DHT static key) + MAC(static key is encrypted) + len(Payload) + MAC(payload is encrypted)
var ed *pb.NoiseExtensions
if s.initiatorEarlyDataHandler != nil {
ed = s.initiatorEarlyDataHandler.Send(ctx, s.insecureConn, s.remoteID)
}
payload, err := s.generateHandshakePayload(kp, ed)
if err != nil {
return err
}
if err := s.sendHandshakeMessage(hs, payload, hbuf); err != nil {
return fmt.Errorf("error sending handshake message: %w", err)
}
return nil
} else {
// stage 0 //
if _, err := s.readHandshakeMessage(hs); err != nil {
return fmt.Errorf("error reading handshake message: %w", err)
}
// stage 1 //
// Handshake Msg Len = len(DH ephemeral key) + len(DHT static key) + MAC(static key is encrypted) + len(Payload) +
// MAC(payload is encrypted)
var ed *pb.NoiseExtensions
if s.responderEarlyDataHandler != nil {
ed = s.responderEarlyDataHandler.Send(ctx, s.insecureConn, s.remoteID)
}
payload, err := s.generateHandshakePayload(kp, ed)
if err != nil {
return err
}
if err := s.sendHandshakeMessage(hs, payload, hbuf); err != nil {
return fmt.Errorf("error sending handshake message: %w", err)
}
// stage 2 //
plaintext, err := s.readHandshakeMessage(hs)
if err != nil {
return fmt.Errorf("error reading handshake message: %w", err)
}
rcvdEd, err := s.handleRemoteHandshakePayload(plaintext, hs.PeerStatic())
if err != nil {
return err
}
if s.responderEarlyDataHandler != nil {
if err := s.responderEarlyDataHandler.Received(ctx, s.insecureConn, rcvdEd); err != nil {
return err
}
}
return nil
}
}
// setCipherStates sets the initial cipher states that will be used to protect
// traffic after the handshake.
//
// It is called when the final handshake message is processed by
// either sendHandshakeMessage or readHandshakeMessage.
func (s *secureSession) setCipherStates(cs1, cs2 *noise.CipherState) {
if s.initiator {
s.enc = cs1
s.dec = cs2
} else {
s.enc = cs2
s.dec = cs1
}
}
// sendHandshakeMessage sends the next handshake message in the sequence.
//
// If payload is non-empty, it will be included in the handshake message.
// If this is the final message in the sequence, calls setCipherStates
// to initialize cipher states.
func (s *secureSession) sendHandshakeMessage(hs *noise.HandshakeState, payload []byte, hbuf []byte) error {
// the first two bytes will be the length of the noise handshake message.
bz, cs1, cs2, err := hs.WriteMessage(hbuf[:LengthPrefixLength], payload)
if err != nil {
return err
}
// bz will also include the length prefix as we passed a slice of LengthPrefixLength length
// to hs.Write().
binary.BigEndian.PutUint16(bz, uint16(len(bz)-LengthPrefixLength))
_, err = s.writeMsgInsecure(bz)
if err != nil {
return err
}
if cs1 != nil && cs2 != nil {
s.setCipherStates(cs1, cs2)
}
return nil
}
// readHandshakeMessage reads a message from the insecure conn and tries to
// process it as the expected next message in the handshake sequence.
//
// If the message contains a payload, it will be decrypted and returned.
//
// If this is the final message in the sequence, it calls setCipherStates
// to initialize cipher states.
func (s *secureSession) readHandshakeMessage(hs *noise.HandshakeState) ([]byte, error) {
l, err := s.readNextInsecureMsgLen()
if err != nil {
return nil, err
}
buf := pool.Get(l)
defer pool.Put(buf)
if err := s.readNextMsgInsecure(buf); err != nil {
return nil, err
}
msg, cs1, cs2, err := hs.ReadMessage(nil, buf)
if err != nil {
return nil, err
}
if cs1 != nil && cs2 != nil {
s.setCipherStates(cs1, cs2)
}
return msg, nil
}
// generateHandshakePayload creates a libp2p handshake payload with a
// signature of our static noise key.
func (s *secureSession) generateHandshakePayload(localStatic noise.DHKey, ext *pb.NoiseExtensions) ([]byte, error) {
// obtain the public key from the handshake session, so we can sign it with
// our libp2p secret key.
localKeyRaw, err := crypto.MarshalPublicKey(s.LocalPublicKey())
if err != nil {
return nil, fmt.Errorf("error serializing libp2p identity key: %w", err)
}
// prepare payload to sign; perform signature.
toSign := append([]byte(payloadSigPrefix), localStatic.Public...)
signedPayload, err := s.localKey.Sign(toSign)
if err != nil {
return nil, fmt.Errorf("error sigining handshake payload: %w", err)
}
// create payload
payloadEnc, err := proto.Marshal(&pb.NoiseHandshakePayload{
IdentityKey: localKeyRaw,
IdentitySig: signedPayload,
Extensions: ext,
})
if err != nil {
return nil, fmt.Errorf("error marshaling handshake payload: %w", err)
}
return payloadEnc, nil
}
// handleRemoteHandshakePayload unmarshals the handshake payload object sent
// by the remote peer and validates the signature against the peer's static Noise key.
// It returns the data attached to the payload.
func (s *secureSession) handleRemoteHandshakePayload(payload []byte, remoteStatic []byte) (*pb.NoiseExtensions, error) {
// unmarshal payload
nhp := new(pb.NoiseHandshakePayload)
err := proto.Unmarshal(payload, nhp)
if err != nil {
return nil, fmt.Errorf("error unmarshaling remote handshake payload: %w", err)
}
// unpack remote peer's public libp2p key
remotePubKey, err := crypto.UnmarshalPublicKey(nhp.GetIdentityKey())
if err != nil {
return nil, err
}
id, err := peer.IDFromPublicKey(remotePubKey)
if err != nil {
return nil, err
}
// check the peer ID if enabled
if s.checkPeerID && s.remoteID != id {
return nil, sec.ErrPeerIDMismatch{Expected: s.remoteID, Actual: id}
}
// verify payload is signed by asserted remote libp2p key.
sig := nhp.GetIdentitySig()
msg := append([]byte(payloadSigPrefix), remoteStatic...)
ok, err := remotePubKey.Verify(msg, sig)
if err != nil {
return nil, fmt.Errorf("error verifying signature: %w", err)
} else if !ok {
return nil, fmt.Errorf("handshake signature invalid")
}
// set remote peer key and id
s.remoteID = id
s.remoteKey = remotePubKey
return nhp.Extensions, nil
}

239
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/pb/payload.pb.go generated vendored Normal file
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// Code generated by protoc-gen-go. DO NOT EDIT.
// versions:
// protoc-gen-go v1.30.0
// protoc v3.21.12
// source: pb/payload.proto
package pb
import (
protoreflect "google.golang.org/protobuf/reflect/protoreflect"
protoimpl "google.golang.org/protobuf/runtime/protoimpl"
reflect "reflect"
sync "sync"
)
const (
// Verify that this generated code is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
// Verify that runtime/protoimpl is sufficiently up-to-date.
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type NoiseExtensions struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
WebtransportCerthashes [][]byte `protobuf:"bytes,1,rep,name=webtransport_certhashes,json=webtransportCerthashes" json:"webtransport_certhashes,omitempty"`
StreamMuxers []string `protobuf:"bytes,2,rep,name=stream_muxers,json=streamMuxers" json:"stream_muxers,omitempty"`
}
func (x *NoiseExtensions) Reset() {
*x = NoiseExtensions{}
if protoimpl.UnsafeEnabled {
mi := &file_pb_payload_proto_msgTypes[0]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *NoiseExtensions) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*NoiseExtensions) ProtoMessage() {}
func (x *NoiseExtensions) ProtoReflect() protoreflect.Message {
mi := &file_pb_payload_proto_msgTypes[0]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use NoiseExtensions.ProtoReflect.Descriptor instead.
func (*NoiseExtensions) Descriptor() ([]byte, []int) {
return file_pb_payload_proto_rawDescGZIP(), []int{0}
}
func (x *NoiseExtensions) GetWebtransportCerthashes() [][]byte {
if x != nil {
return x.WebtransportCerthashes
}
return nil
}
func (x *NoiseExtensions) GetStreamMuxers() []string {
if x != nil {
return x.StreamMuxers
}
return nil
}
type NoiseHandshakePayload struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
unknownFields protoimpl.UnknownFields
IdentityKey []byte `protobuf:"bytes,1,opt,name=identity_key,json=identityKey" json:"identity_key,omitempty"`
IdentitySig []byte `protobuf:"bytes,2,opt,name=identity_sig,json=identitySig" json:"identity_sig,omitempty"`
Extensions *NoiseExtensions `protobuf:"bytes,4,opt,name=extensions" json:"extensions,omitempty"`
}
func (x *NoiseHandshakePayload) Reset() {
*x = NoiseHandshakePayload{}
if protoimpl.UnsafeEnabled {
mi := &file_pb_payload_proto_msgTypes[1]
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
ms.StoreMessageInfo(mi)
}
}
func (x *NoiseHandshakePayload) String() string {
return protoimpl.X.MessageStringOf(x)
}
func (*NoiseHandshakePayload) ProtoMessage() {}
func (x *NoiseHandshakePayload) ProtoReflect() protoreflect.Message {
mi := &file_pb_payload_proto_msgTypes[1]
if protoimpl.UnsafeEnabled && x != nil {
ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
if ms.LoadMessageInfo() == nil {
ms.StoreMessageInfo(mi)
}
return ms
}
return mi.MessageOf(x)
}
// Deprecated: Use NoiseHandshakePayload.ProtoReflect.Descriptor instead.
func (*NoiseHandshakePayload) Descriptor() ([]byte, []int) {
return file_pb_payload_proto_rawDescGZIP(), []int{1}
}
func (x *NoiseHandshakePayload) GetIdentityKey() []byte {
if x != nil {
return x.IdentityKey
}
return nil
}
func (x *NoiseHandshakePayload) GetIdentitySig() []byte {
if x != nil {
return x.IdentitySig
}
return nil
}
func (x *NoiseHandshakePayload) GetExtensions() *NoiseExtensions {
if x != nil {
return x.Extensions
}
return nil
}
var File_pb_payload_proto protoreflect.FileDescriptor
var file_pb_payload_proto_rawDesc = []byte{
0x0a, 0x10, 0x70, 0x62, 0x2f, 0x70, 0x61, 0x79, 0x6c, 0x6f, 0x61, 0x64, 0x2e, 0x70, 0x72, 0x6f,
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0x73, 0x68, 0x65, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x16, 0x77, 0x65, 0x62, 0x74,
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0x65, 0x48, 0x61, 0x6e, 0x64, 0x73, 0x68, 0x61, 0x6b, 0x65, 0x50, 0x61, 0x79, 0x6c, 0x6f, 0x61,
0x64, 0x12, 0x21, 0x0a, 0x0c, 0x69, 0x64, 0x65, 0x6e, 0x74, 0x69, 0x74, 0x79, 0x5f, 0x6b, 0x65,
0x79, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x0b, 0x69, 0x64, 0x65, 0x6e, 0x74, 0x69, 0x74,
0x79, 0x4b, 0x65, 0x79, 0x12, 0x21, 0x0a, 0x0c, 0x69, 0x64, 0x65, 0x6e, 0x74, 0x69, 0x74, 0x79,
0x5f, 0x73, 0x69, 0x67, 0x18, 0x02, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x0b, 0x69, 0x64, 0x65, 0x6e,
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0x73, 0x69, 0x6f, 0x6e, 0x73, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x13, 0x2e, 0x70, 0x62,
0x2e, 0x4e, 0x6f, 0x69, 0x73, 0x65, 0x45, 0x78, 0x74, 0x65, 0x6e, 0x73, 0x69, 0x6f, 0x6e, 0x73,
0x52, 0x0a, 0x65, 0x78, 0x74, 0x65, 0x6e, 0x73, 0x69, 0x6f, 0x6e, 0x73,
}
var (
file_pb_payload_proto_rawDescOnce sync.Once
file_pb_payload_proto_rawDescData = file_pb_payload_proto_rawDesc
)
func file_pb_payload_proto_rawDescGZIP() []byte {
file_pb_payload_proto_rawDescOnce.Do(func() {
file_pb_payload_proto_rawDescData = protoimpl.X.CompressGZIP(file_pb_payload_proto_rawDescData)
})
return file_pb_payload_proto_rawDescData
}
var file_pb_payload_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_pb_payload_proto_goTypes = []interface{}{
(*NoiseExtensions)(nil), // 0: pb.NoiseExtensions
(*NoiseHandshakePayload)(nil), // 1: pb.NoiseHandshakePayload
}
var file_pb_payload_proto_depIdxs = []int32{
0, // 0: pb.NoiseHandshakePayload.extensions:type_name -> pb.NoiseExtensions
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
}
func init() { file_pb_payload_proto_init() }
func file_pb_payload_proto_init() {
if File_pb_payload_proto != nil {
return
}
if !protoimpl.UnsafeEnabled {
file_pb_payload_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*NoiseExtensions); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
file_pb_payload_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
switch v := v.(*NoiseHandshakePayload); i {
case 0:
return &v.state
case 1:
return &v.sizeCache
case 2:
return &v.unknownFields
default:
return nil
}
}
}
type x struct{}
out := protoimpl.TypeBuilder{
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_pb_payload_proto_rawDesc,
NumEnums: 0,
NumMessages: 2,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_pb_payload_proto_goTypes,
DependencyIndexes: file_pb_payload_proto_depIdxs,
MessageInfos: file_pb_payload_proto_msgTypes,
}.Build()
File_pb_payload_proto = out.File
file_pb_payload_proto_rawDesc = nil
file_pb_payload_proto_goTypes = nil
file_pb_payload_proto_depIdxs = nil
}

13
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/pb/payload.proto generated vendored Normal file
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@@ -0,0 +1,13 @@
syntax = "proto2";
package pb;
message NoiseExtensions {
repeated bytes webtransport_certhashes = 1;
repeated string stream_muxers = 2;
}
message NoiseHandshakePayload {
optional bytes identity_key = 1;
optional bytes identity_sig = 2;
optional NoiseExtensions extensions = 4;
}

155
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/rw.go generated vendored Normal file
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@@ -0,0 +1,155 @@
package noise
import (
"encoding/binary"
"io"
pool "github.com/libp2p/go-buffer-pool"
"golang.org/x/crypto/chacha20poly1305"
)
// MaxTransportMsgLength is the Noise-imposed maximum transport message length,
// inclusive of the MAC size (16 bytes, Poly1305 for noise-libp2p).
const MaxTransportMsgLength = 0xffff
// MaxPlaintextLength is the maximum payload size. It is MaxTransportMsgLength
// minus the MAC size. Payloads over this size will be automatically chunked.
const MaxPlaintextLength = MaxTransportMsgLength - chacha20poly1305.Overhead
// LengthPrefixLength is the length of the length prefix itself, which precedes
// all transport messages in order to delimit them. In bytes.
const LengthPrefixLength = 2
// Read reads from the secure connection, returning plaintext data in `buf`.
//
// Honours io.Reader in terms of behaviour.
func (s *secureSession) Read(buf []byte) (int, error) {
s.readLock.Lock()
defer s.readLock.Unlock()
// 1. If we have queued received bytes:
// 1a. If len(buf) < len(queued), saturate buf, update seek pointer, return.
// 1b. If len(buf) >= len(queued), copy remaining to buf, release queued buffer back into pool, return.
//
// 2. Else, read the next message off the wire; next_len is length prefix.
// 2a. If len(buf) >= next_len, copy the message to input buffer (zero-alloc path), and return.
// 2b. If len(buf) >= (next_len - length of Authentication Tag), get buffer from pool, read encrypted message into it.
// decrypt message directly into the input buffer and return the buffer obtained from the pool.
// 2c. If len(buf) < next_len, obtain buffer from pool, copy entire message into it, saturate buf, update seek pointer.
if s.qbuf != nil {
// we have queued bytes; copy as much as we can.
copied := copy(buf, s.qbuf[s.qseek:])
s.qseek += copied
if s.qseek == len(s.qbuf) {
// queued buffer is now empty, reset and release.
pool.Put(s.qbuf)
s.qseek, s.qbuf = 0, nil
}
return copied, nil
}
// length of the next encrypted message.
nextMsgLen, err := s.readNextInsecureMsgLen()
if err != nil {
return 0, err
}
// If the buffer is atleast as big as the encrypted message size,
// we can read AND decrypt in place.
if len(buf) >= nextMsgLen {
if err := s.readNextMsgInsecure(buf[:nextMsgLen]); err != nil {
return 0, err
}
dbuf, err := s.decrypt(buf[:0], buf[:nextMsgLen])
if err != nil {
return 0, err
}
return len(dbuf), nil
}
// otherwise, we get a buffer from the pool so we can read the message into it
// and then decrypt in place, since we're retaining the buffer (or a view thereof).
cbuf := pool.Get(nextMsgLen)
if err := s.readNextMsgInsecure(cbuf); err != nil {
return 0, err
}
if s.qbuf, err = s.decrypt(cbuf[:0], cbuf); err != nil {
return 0, err
}
// copy as many bytes as we can; update seek pointer.
s.qseek = copy(buf, s.qbuf)
return s.qseek, nil
}
// Write encrypts the plaintext `in` data and sends it on the
// secure connection.
func (s *secureSession) Write(data []byte) (int, error) {
s.writeLock.Lock()
defer s.writeLock.Unlock()
var (
written int
cbuf []byte
total = len(data)
)
if total < MaxPlaintextLength {
cbuf = pool.Get(total + chacha20poly1305.Overhead + LengthPrefixLength)
} else {
cbuf = pool.Get(MaxTransportMsgLength + LengthPrefixLength)
}
defer pool.Put(cbuf)
for written < total {
end := written + MaxPlaintextLength
if end > total {
end = total
}
b, err := s.encrypt(cbuf[:LengthPrefixLength], data[written:end])
if err != nil {
return 0, err
}
binary.BigEndian.PutUint16(b, uint16(len(b)-LengthPrefixLength))
_, err = s.writeMsgInsecure(b)
if err != nil {
return written, err
}
written = end
}
return written, nil
}
// readNextInsecureMsgLen reads the length of the next message on the insecureConn channel.
func (s *secureSession) readNextInsecureMsgLen() (int, error) {
_, err := io.ReadFull(s.insecureReader, s.rlen[:])
if err != nil {
return 0, err
}
return int(binary.BigEndian.Uint16(s.rlen[:])), err
}
// readNextMsgInsecure tries to read exactly len(buf) bytes into buf from
// the insecureConn channel and returns the error, if any.
// Ideally, for reading a message, you'd first want to call `readNextInsecureMsgLen`
// to determine the size of the next message to be read from the insecureConn channel and then call
// this function with a buffer of exactly that size.
func (s *secureSession) readNextMsgInsecure(buf []byte) error {
_, err := io.ReadFull(s.insecureReader, buf)
return err
}
// writeMsgInsecure writes to the insecureConn conn.
// data will be prefixed with its length in bytes, written as a 16-bit uint in network order.
func (s *secureSession) writeMsgInsecure(data []byte) (int, error) {
return s.insecureConn.Write(data)
}

140
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/session.go generated vendored Normal file
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@@ -0,0 +1,140 @@
package noise
import (
"bufio"
"context"
"net"
"sync"
"time"
"github.com/flynn/noise"
"github.com/libp2p/go-libp2p/core/crypto"
"github.com/libp2p/go-libp2p/core/network"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/protocol"
)
type secureSession struct {
initiator bool
checkPeerID bool
localID peer.ID
localKey crypto.PrivKey
remoteID peer.ID
remoteKey crypto.PubKey
readLock sync.Mutex
writeLock sync.Mutex
insecureConn net.Conn
insecureReader *bufio.Reader // to cushion io read syscalls
// we don't buffer writes to avoid introducing latency; optimisation possible. // TODO revisit
qseek int // queued bytes seek value.
qbuf []byte // queued bytes buffer.
rlen [2]byte // work buffer to read in the incoming message length.
enc *noise.CipherState
dec *noise.CipherState
// noise prologue
prologue []byte
initiatorEarlyDataHandler, responderEarlyDataHandler EarlyDataHandler
// ConnectionState holds state information releated to the secureSession entity.
connectionState network.ConnectionState
}
// newSecureSession creates a Noise session over the given insecureConn Conn, using
// the libp2p identity keypair from the given Transport.
func newSecureSession(tpt *Transport, ctx context.Context, insecure net.Conn, remote peer.ID, prologue []byte, initiatorEDH, responderEDH EarlyDataHandler, initiator, checkPeerID bool) (*secureSession, error) {
s := &secureSession{
insecureConn: insecure,
insecureReader: bufio.NewReader(insecure),
initiator: initiator,
localID: tpt.localID,
localKey: tpt.privateKey,
remoteID: remote,
prologue: prologue,
initiatorEarlyDataHandler: initiatorEDH,
responderEarlyDataHandler: responderEDH,
checkPeerID: checkPeerID,
}
// the go-routine we create to run the handshake will
// write the result of the handshake to the respCh.
respCh := make(chan error, 1)
go func() {
respCh <- s.runHandshake(ctx)
}()
select {
case err := <-respCh:
if err != nil {
_ = s.insecureConn.Close()
}
return s, err
case <-ctx.Done():
// If the context has been cancelled, we close the underlying connection.
// We then wait for the handshake to return because of the first error it encounters
// so we don't return without cleaning up the go-routine.
_ = s.insecureConn.Close()
<-respCh
return nil, ctx.Err()
}
}
func (s *secureSession) LocalAddr() net.Addr {
return s.insecureConn.LocalAddr()
}
func (s *secureSession) LocalPeer() peer.ID {
return s.localID
}
func (s *secureSession) LocalPublicKey() crypto.PubKey {
return s.localKey.GetPublic()
}
func (s *secureSession) RemoteAddr() net.Addr {
return s.insecureConn.RemoteAddr()
}
func (s *secureSession) RemotePeer() peer.ID {
return s.remoteID
}
func (s *secureSession) RemotePublicKey() crypto.PubKey {
return s.remoteKey
}
func (s *secureSession) ConnState() network.ConnectionState {
return s.connectionState
}
func (s *secureSession) SetDeadline(t time.Time) error {
return s.insecureConn.SetDeadline(t)
}
func (s *secureSession) SetReadDeadline(t time.Time) error {
return s.insecureConn.SetReadDeadline(t)
}
func (s *secureSession) SetWriteDeadline(t time.Time) error {
return s.insecureConn.SetWriteDeadline(t)
}
func (s *secureSession) Close() error {
return s.insecureConn.Close()
}
func SessionWithConnState(s *secureSession, muxer protocol.ID) *secureSession {
if s != nil {
s.connectionState.StreamMultiplexer = muxer
s.connectionState.UsedEarlyMuxerNegotiation = muxer != ""
}
return s
}

101
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/session_transport.go generated vendored Normal file
View File

@@ -0,0 +1,101 @@
package noise
import (
"context"
"net"
"github.com/libp2p/go-libp2p/core/canonicallog"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/protocol"
"github.com/libp2p/go-libp2p/core/sec"
"github.com/libp2p/go-libp2p/p2p/security/noise/pb"
manet "github.com/multiformats/go-multiaddr/net"
)
type SessionOption = func(*SessionTransport) error
// Prologue sets a prologue for the Noise session.
// The handshake will only complete successfully if both parties set the same prologue.
// See https://noiseprotocol.org/noise.html#prologue for details.
func Prologue(prologue []byte) SessionOption {
return func(s *SessionTransport) error {
s.prologue = prologue
return nil
}
}
// EarlyDataHandler defines what the application payload is for either the second
// (if responder) or third (if initiator) handshake message, and defines the
// logic for handling the other side's early data. Note the early data in the
// second handshake message is encrypted, but the peer is not authenticated at that point.
type EarlyDataHandler interface {
// Send for the initiator is called for the client before sending the third
// handshake message. Defines the application payload for the third message.
// Send for the responder is called before sending the second handshake message.
Send(context.Context, net.Conn, peer.ID) *pb.NoiseExtensions
// Received for the initiator is called when the second handshake message
// from the responder is received.
// Received for the responder is called when the third handshake message
// from the initiator is received.
Received(context.Context, net.Conn, *pb.NoiseExtensions) error
}
// EarlyData sets the `EarlyDataHandler` for the initiator and responder roles.
// See `EarlyDataHandler` for more details.
func EarlyData(initiator, responder EarlyDataHandler) SessionOption {
return func(s *SessionTransport) error {
s.initiatorEarlyDataHandler = initiator
s.responderEarlyDataHandler = responder
return nil
}
}
// DisablePeerIDCheck disables checking the remote peer ID for a noise connection.
// For outbound connections, this is the equivalent of calling `SecureInbound` with an empty
// peer ID. This is susceptible to MITM attacks since we do not verify the identity of the remote
// peer.
func DisablePeerIDCheck() SessionOption {
return func(s *SessionTransport) error {
s.disablePeerIDCheck = true
return nil
}
}
var _ sec.SecureTransport = &SessionTransport{}
// SessionTransport can be used
// to provide per-connection options
type SessionTransport struct {
t *Transport
// options
prologue []byte
disablePeerIDCheck bool
protocolID protocol.ID
initiatorEarlyDataHandler, responderEarlyDataHandler EarlyDataHandler
}
// SecureInbound runs the Noise handshake as the responder.
// If p is empty, connections from any peer are accepted.
func (i *SessionTransport) SecureInbound(ctx context.Context, insecure net.Conn, p peer.ID) (sec.SecureConn, error) {
checkPeerID := !i.disablePeerIDCheck && p != ""
c, err := newSecureSession(i.t, ctx, insecure, p, i.prologue, i.initiatorEarlyDataHandler, i.responderEarlyDataHandler, false, checkPeerID)
if err != nil {
addr, maErr := manet.FromNetAddr(insecure.RemoteAddr())
if maErr == nil {
canonicallog.LogPeerStatus(100, p, addr, "handshake_failure", "noise", "err", err.Error())
}
}
return c, err
}
// SecureOutbound runs the Noise handshake as the initiator.
func (i *SessionTransport) SecureOutbound(ctx context.Context, insecure net.Conn, p peer.ID) (sec.SecureConn, error) {
return newSecureSession(i.t, ctx, insecure, p, i.prologue, i.initiatorEarlyDataHandler, i.responderEarlyDataHandler, true, !i.disablePeerIDCheck)
}
func (i *SessionTransport) ID() protocol.ID {
return i.protocolID
}

131
vendor/github.com/libp2p/go-libp2p/p2p/security/noise/transport.go generated vendored Normal file
View File

@@ -0,0 +1,131 @@
package noise
import (
"context"
"net"
"github.com/libp2p/go-libp2p/core/canonicallog"
"github.com/libp2p/go-libp2p/core/crypto"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/protocol"
"github.com/libp2p/go-libp2p/core/sec"
tptu "github.com/libp2p/go-libp2p/p2p/net/upgrader"
"github.com/libp2p/go-libp2p/p2p/security/noise/pb"
manet "github.com/multiformats/go-multiaddr/net"
)
// ID is the protocol ID for noise
const ID = "/noise"
const maxProtoNum = 100
type Transport struct {
protocolID protocol.ID
localID peer.ID
privateKey crypto.PrivKey
muxers []protocol.ID
}
var _ sec.SecureTransport = &Transport{}
// New creates a new Noise transport using the given private key as its
// libp2p identity key.
func New(id protocol.ID, privkey crypto.PrivKey, muxers []tptu.StreamMuxer) (*Transport, error) {
localID, err := peer.IDFromPrivateKey(privkey)
if err != nil {
return nil, err
}
muxerIDs := make([]protocol.ID, 0, len(muxers))
for _, m := range muxers {
muxerIDs = append(muxerIDs, m.ID)
}
return &Transport{
protocolID: id,
localID: localID,
privateKey: privkey,
muxers: muxerIDs,
}, nil
}
// SecureInbound runs the Noise handshake as the responder.
// If p is empty, connections from any peer are accepted.
func (t *Transport) SecureInbound(ctx context.Context, insecure net.Conn, p peer.ID) (sec.SecureConn, error) {
responderEDH := newTransportEDH(t)
c, err := newSecureSession(t, ctx, insecure, p, nil, nil, responderEDH, false, p != "")
if err != nil {
addr, maErr := manet.FromNetAddr(insecure.RemoteAddr())
if maErr == nil {
canonicallog.LogPeerStatus(100, p, addr, "handshake_failure", "noise", "err", err.Error())
}
}
return SessionWithConnState(c, responderEDH.MatchMuxers(false)), err
}
// SecureOutbound runs the Noise handshake as the initiator.
func (t *Transport) SecureOutbound(ctx context.Context, insecure net.Conn, p peer.ID) (sec.SecureConn, error) {
initiatorEDH := newTransportEDH(t)
c, err := newSecureSession(t, ctx, insecure, p, nil, initiatorEDH, nil, true, true)
if err != nil {
return c, err
}
return SessionWithConnState(c, initiatorEDH.MatchMuxers(true)), err
}
func (t *Transport) WithSessionOptions(opts ...SessionOption) (*SessionTransport, error) {
st := &SessionTransport{t: t, protocolID: t.protocolID}
for _, opt := range opts {
if err := opt(st); err != nil {
return nil, err
}
}
return st, nil
}
func (t *Transport) ID() protocol.ID {
return t.protocolID
}
func matchMuxers(initiatorMuxers, responderMuxers []protocol.ID) protocol.ID {
for _, initMuxer := range initiatorMuxers {
for _, respMuxer := range responderMuxers {
if initMuxer == respMuxer {
return initMuxer
}
}
}
return ""
}
type transportEarlyDataHandler struct {
transport *Transport
receivedMuxers []protocol.ID
}
var _ EarlyDataHandler = &transportEarlyDataHandler{}
func newTransportEDH(t *Transport) *transportEarlyDataHandler {
return &transportEarlyDataHandler{transport: t}
}
func (i *transportEarlyDataHandler) Send(context.Context, net.Conn, peer.ID) *pb.NoiseExtensions {
return &pb.NoiseExtensions{
StreamMuxers: protocol.ConvertToStrings(i.transport.muxers),
}
}
func (i *transportEarlyDataHandler) Received(_ context.Context, _ net.Conn, extension *pb.NoiseExtensions) error {
// Discard messages with size or the number of protocols exceeding extension limit for security.
if extension != nil && len(extension.StreamMuxers) <= maxProtoNum {
i.receivedMuxers = protocol.ConvertFromStrings(extension.GetStreamMuxers())
}
return nil
}
func (i *transportEarlyDataHandler) MatchMuxers(isInitiator bool) protocol.ID {
if isInitiator {
return matchMuxers(i.transport.muxers, i.receivedMuxers)
}
return matchMuxers(i.receivedMuxers, i.transport.muxers)
}

7
vendor/github.com/libp2p/go-libp2p/p2p/security/tls/LICENSE.md generated vendored Normal file
View File

@@ -0,0 +1,7 @@
Copyright 2018 Marten Seemann
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

37
vendor/github.com/libp2p/go-libp2p/p2p/security/tls/conn.go generated vendored Normal file
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package libp2ptls
import (
"crypto/tls"
ci "github.com/libp2p/go-libp2p/core/crypto"
"github.com/libp2p/go-libp2p/core/network"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/sec"
)
type conn struct {
*tls.Conn
localPeer peer.ID
remotePeer peer.ID
remotePubKey ci.PubKey
connectionState network.ConnectionState
}
var _ sec.SecureConn = &conn{}
func (c *conn) LocalPeer() peer.ID {
return c.localPeer
}
func (c *conn) RemotePeer() peer.ID {
return c.remotePeer
}
func (c *conn) RemotePublicKey() ci.PubKey {
return c.remotePubKey
}
func (c *conn) ConnState() network.ConnectionState {
return c.connectionState
}

271
vendor/github.com/libp2p/go-libp2p/p2p/security/tls/crypto.go generated vendored Normal file
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package libp2ptls
import (
"crypto"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/tls"
"crypto/x509"
"crypto/x509/pkix"
"encoding/asn1"
"errors"
"fmt"
"math/big"
"os"
"runtime/debug"
"time"
ic "github.com/libp2p/go-libp2p/core/crypto"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/sec"
)
const certValidityPeriod = 100 * 365 * 24 * time.Hour // ~100 years
const certificatePrefix = "libp2p-tls-handshake:"
const alpn string = "libp2p"
var extensionID = getPrefixedExtensionID([]int{1, 1})
var extensionCritical bool // so we can mark the extension critical in tests
type signedKey struct {
PubKey []byte
Signature []byte
}
// Identity is used to secure connections
type Identity struct {
config tls.Config
}
// IdentityConfig is used to configure an Identity
type IdentityConfig struct {
CertTemplate *x509.Certificate
}
// IdentityOption transforms an IdentityConfig to apply optional settings.
type IdentityOption func(r *IdentityConfig)
// WithCertTemplate specifies the template to use when generating a new certificate.
func WithCertTemplate(template *x509.Certificate) IdentityOption {
return func(c *IdentityConfig) {
c.CertTemplate = template
}
}
// NewIdentity creates a new identity
func NewIdentity(privKey ic.PrivKey, opts ...IdentityOption) (*Identity, error) {
config := IdentityConfig{}
for _, opt := range opts {
opt(&config)
}
var err error
if config.CertTemplate == nil {
config.CertTemplate, err = certTemplate()
if err != nil {
return nil, err
}
}
cert, err := keyToCertificate(privKey, config.CertTemplate)
if err != nil {
return nil, err
}
return &Identity{
config: tls.Config{
MinVersion: tls.VersionTLS13,
InsecureSkipVerify: true, // This is not insecure here. We will verify the cert chain ourselves.
ClientAuth: tls.RequireAnyClientCert,
Certificates: []tls.Certificate{*cert},
VerifyPeerCertificate: func(_ [][]byte, _ [][]*x509.Certificate) error {
panic("tls config not specialized for peer")
},
NextProtos: []string{alpn},
SessionTicketsDisabled: true,
},
}, nil
}
// ConfigForPeer creates a new single-use tls.Config that verifies the peer's
// certificate chain and returns the peer's public key via the channel. If the
// peer ID is empty, the returned config will accept any peer.
//
// It should be used to create a new tls.Config before securing either an
// incoming or outgoing connection.
func (i *Identity) ConfigForPeer(remote peer.ID) (*tls.Config, <-chan ic.PubKey) {
keyCh := make(chan ic.PubKey, 1)
// We need to check the peer ID in the VerifyPeerCertificate callback.
// The tls.Config it is also used for listening, and we might also have concurrent dials.
// Clone it so we can check for the specific peer ID we're dialing here.
conf := i.config.Clone()
// We're using InsecureSkipVerify, so the verifiedChains parameter will always be empty.
// We need to parse the certificates ourselves from the raw certs.
conf.VerifyPeerCertificate = func(rawCerts [][]byte, _ [][]*x509.Certificate) (err error) {
defer func() {
if rerr := recover(); rerr != nil {
fmt.Fprintf(os.Stderr, "panic when processing peer certificate in TLS handshake: %s\n%s\n", rerr, debug.Stack())
err = fmt.Errorf("panic when processing peer certificate in TLS handshake: %s", rerr)
}
}()
defer close(keyCh)
chain := make([]*x509.Certificate, len(rawCerts))
for i := 0; i < len(rawCerts); i++ {
cert, err := x509.ParseCertificate(rawCerts[i])
if err != nil {
return err
}
chain[i] = cert
}
pubKey, err := PubKeyFromCertChain(chain)
if err != nil {
return err
}
if remote != "" && !remote.MatchesPublicKey(pubKey) {
peerID, err := peer.IDFromPublicKey(pubKey)
if err != nil {
peerID = peer.ID(fmt.Sprintf("(not determined: %s)", err.Error()))
}
return sec.ErrPeerIDMismatch{Expected: remote, Actual: peerID}
}
keyCh <- pubKey
return nil
}
return conf, keyCh
}
// PubKeyFromCertChain verifies the certificate chain and extract the remote's public key.
func PubKeyFromCertChain(chain []*x509.Certificate) (ic.PubKey, error) {
if len(chain) != 1 {
return nil, errors.New("expected one certificates in the chain")
}
cert := chain[0]
pool := x509.NewCertPool()
pool.AddCert(cert)
var found bool
var keyExt pkix.Extension
// find the libp2p key extension, skipping all unknown extensions
for _, ext := range cert.Extensions {
if extensionIDEqual(ext.Id, extensionID) {
keyExt = ext
found = true
for i, oident := range cert.UnhandledCriticalExtensions {
if oident.Equal(ext.Id) {
// delete the extension from UnhandledCriticalExtensions
cert.UnhandledCriticalExtensions = append(cert.UnhandledCriticalExtensions[:i], cert.UnhandledCriticalExtensions[i+1:]...)
break
}
}
break
}
}
if !found {
return nil, errors.New("expected certificate to contain the key extension")
}
if _, err := cert.Verify(x509.VerifyOptions{Roots: pool}); err != nil {
// If we return an x509 error here, it will be sent on the wire.
// Wrap the error to avoid that.
return nil, fmt.Errorf("certificate verification failed: %s", err)
}
var sk signedKey
if _, err := asn1.Unmarshal(keyExt.Value, &sk); err != nil {
return nil, fmt.Errorf("unmarshalling signed certificate failed: %s", err)
}
pubKey, err := ic.UnmarshalPublicKey(sk.PubKey)
if err != nil {
return nil, fmt.Errorf("unmarshalling public key failed: %s", err)
}
certKeyPub, err := x509.MarshalPKIXPublicKey(cert.PublicKey)
if err != nil {
return nil, err
}
valid, err := pubKey.Verify(append([]byte(certificatePrefix), certKeyPub...), sk.Signature)
if err != nil {
return nil, fmt.Errorf("signature verification failed: %s", err)
}
if !valid {
return nil, errors.New("signature invalid")
}
return pubKey, nil
}
// GenerateSignedExtension uses the provided private key to sign the public key, and returns the
// signature within a pkix.Extension.
// This extension is included in a certificate to cryptographically tie it to the libp2p private key.
func GenerateSignedExtension(sk ic.PrivKey, pubKey crypto.PublicKey) (pkix.Extension, error) {
keyBytes, err := ic.MarshalPublicKey(sk.GetPublic())
if err != nil {
return pkix.Extension{}, err
}
certKeyPub, err := x509.MarshalPKIXPublicKey(pubKey)
if err != nil {
return pkix.Extension{}, err
}
signature, err := sk.Sign(append([]byte(certificatePrefix), certKeyPub...))
if err != nil {
return pkix.Extension{}, err
}
value, err := asn1.Marshal(signedKey{
PubKey: keyBytes,
Signature: signature,
})
if err != nil {
return pkix.Extension{}, err
}
return pkix.Extension{Id: extensionID, Critical: extensionCritical, Value: value}, nil
}
// keyToCertificate generates a new ECDSA private key and corresponding x509 certificate.
// The certificate includes an extension that cryptographically ties it to the provided libp2p
// private key to authenticate TLS connections.
func keyToCertificate(sk ic.PrivKey, certTmpl *x509.Certificate) (*tls.Certificate, error) {
certKey, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
return nil, err
}
// after calling CreateCertificate, these will end up in Certificate.Extensions
extension, err := GenerateSignedExtension(sk, certKey.Public())
if err != nil {
return nil, err
}
certTmpl.ExtraExtensions = append(certTmpl.ExtraExtensions, extension)
certDER, err := x509.CreateCertificate(rand.Reader, certTmpl, certTmpl, certKey.Public(), certKey)
if err != nil {
return nil, err
}
return &tls.Certificate{
Certificate: [][]byte{certDER},
PrivateKey: certKey,
}, nil
}
// certTemplate returns the template for generating an Identity's TLS certificates.
func certTemplate() (*x509.Certificate, error) {
bigNum := big.NewInt(1 << 62)
sn, err := rand.Int(rand.Reader, bigNum)
if err != nil {
return nil, err
}
subjectSN, err := rand.Int(rand.Reader, bigNum)
if err != nil {
return nil, err
}
return &x509.Certificate{
SerialNumber: sn,
NotBefore: time.Now().Add(-time.Hour),
NotAfter: time.Now().Add(certValidityPeriod),
// According to RFC 3280, the issuer field must be set,
// see https://datatracker.ietf.org/doc/html/rfc3280#section-4.1.2.4.
Subject: pkix.Name{SerialNumber: subjectSN.String()},
}, nil
}

22
vendor/github.com/libp2p/go-libp2p/p2p/security/tls/extension.go generated vendored Normal file
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package libp2ptls
var extensionPrefix = []int{1, 3, 6, 1, 4, 1, 53594}
// getPrefixedExtensionID returns an Object Identifier
// that can be used in x509 Certificates.
func getPrefixedExtensionID(suffix []int) []int {
return append(extensionPrefix, suffix...)
}
// extensionIDEqual compares two extension IDs.
func extensionIDEqual(a, b []int) bool {
if len(a) != len(b) {
return false
}
for i := range a {
if a[i] != b[i] {
return false
}
}
return true
}

182
vendor/github.com/libp2p/go-libp2p/p2p/security/tls/transport.go generated vendored Normal file
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package libp2ptls
import (
"context"
"crypto/tls"
"errors"
"fmt"
"net"
"os"
"runtime/debug"
"github.com/libp2p/go-libp2p/core/canonicallog"
ci "github.com/libp2p/go-libp2p/core/crypto"
"github.com/libp2p/go-libp2p/core/network"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/libp2p/go-libp2p/core/protocol"
"github.com/libp2p/go-libp2p/core/sec"
tptu "github.com/libp2p/go-libp2p/p2p/net/upgrader"
manet "github.com/multiformats/go-multiaddr/net"
)
// ID is the protocol ID (used when negotiating with multistream)
const ID = "/tls/1.0.0"
// Transport constructs secure communication sessions for a peer.
type Transport struct {
identity *Identity
localPeer peer.ID
privKey ci.PrivKey
muxers []protocol.ID
protocolID protocol.ID
}
var _ sec.SecureTransport = &Transport{}
// New creates a TLS encrypted transport
func New(id protocol.ID, key ci.PrivKey, muxers []tptu.StreamMuxer) (*Transport, error) {
localPeer, err := peer.IDFromPrivateKey(key)
if err != nil {
return nil, err
}
muxerIDs := make([]protocol.ID, 0, len(muxers))
for _, m := range muxers {
muxerIDs = append(muxerIDs, m.ID)
}
t := &Transport{
protocolID: id,
localPeer: localPeer,
privKey: key,
muxers: muxerIDs,
}
identity, err := NewIdentity(key)
if err != nil {
return nil, err
}
t.identity = identity
return t, nil
}
// SecureInbound runs the TLS handshake as a server.
// If p is empty, connections from any peer are accepted.
func (t *Transport) SecureInbound(ctx context.Context, insecure net.Conn, p peer.ID) (sec.SecureConn, error) {
config, keyCh := t.identity.ConfigForPeer(p)
muxers := make([]string, 0, len(t.muxers))
for _, muxer := range t.muxers {
muxers = append(muxers, string(muxer))
}
// TLS' ALPN selection lets the server select the protocol, preferring the server's preferences.
// We want to prefer the client's preference though.
getConfigForClient := config.GetConfigForClient
config.GetConfigForClient = func(info *tls.ClientHelloInfo) (*tls.Config, error) {
alpnLoop:
for _, proto := range info.SupportedProtos {
for _, m := range muxers {
if m == proto {
// Match found. Select this muxer, as it's the client's preference.
// There's no need to add the "libp2p" entry here.
config.NextProtos = []string{proto}
break alpnLoop
}
}
}
if getConfigForClient != nil {
return getConfigForClient(info)
}
return config, nil
}
config.NextProtos = append(muxers, config.NextProtos...)
cs, err := t.handshake(ctx, tls.Server(insecure, config), keyCh)
if err != nil {
addr, maErr := manet.FromNetAddr(insecure.RemoteAddr())
if maErr == nil {
canonicallog.LogPeerStatus(100, p, addr, "handshake_failure", "tls", "err", err.Error())
}
insecure.Close()
}
return cs, err
}
// SecureOutbound runs the TLS handshake as a client.
// Note that SecureOutbound will not return an error if the server doesn't
// accept the certificate. This is due to the fact that in TLS 1.3, the client
// sends its certificate and the ClientFinished in the same flight, and can send
// application data immediately afterwards.
// If the handshake fails, the server will close the connection. The client will
// notice this after 1 RTT when calling Read.
func (t *Transport) SecureOutbound(ctx context.Context, insecure net.Conn, p peer.ID) (sec.SecureConn, error) {
config, keyCh := t.identity.ConfigForPeer(p)
muxers := make([]string, 0, len(t.muxers))
for _, muxer := range t.muxers {
muxers = append(muxers, (string)(muxer))
}
// Prepend the prefered muxers list to TLS config.
config.NextProtos = append(muxers, config.NextProtos...)
cs, err := t.handshake(ctx, tls.Client(insecure, config), keyCh)
if err != nil {
insecure.Close()
}
return cs, err
}
func (t *Transport) handshake(ctx context.Context, tlsConn *tls.Conn, keyCh <-chan ci.PubKey) (_sconn sec.SecureConn, err error) {
defer func() {
if rerr := recover(); rerr != nil {
fmt.Fprintf(os.Stderr, "panic in TLS handshake: %s\n%s\n", rerr, debug.Stack())
err = fmt.Errorf("panic in TLS handshake: %s", rerr)
}
}()
// handshaking...
if err := tlsConn.HandshakeContext(ctx); err != nil {
return nil, err
}
// Should be ready by this point, don't block.
var remotePubKey ci.PubKey
select {
case remotePubKey = <-keyCh:
default:
}
if remotePubKey == nil {
return nil, errors.New("go-libp2p tls BUG: expected remote pub key to be set")
}
return t.setupConn(tlsConn, remotePubKey)
}
func (t *Transport) setupConn(tlsConn *tls.Conn, remotePubKey ci.PubKey) (sec.SecureConn, error) {
remotePeerID, err := peer.IDFromPublicKey(remotePubKey)
if err != nil {
return nil, err
}
nextProto := tlsConn.ConnectionState().NegotiatedProtocol
// The special ALPN extension value "libp2p" is used by libp2p versions
// that don't support early muxer negotiation. If we see this sepcial
// value selected, that means we are handshaking with a version that does
// not support early muxer negotiation. In this case return empty nextProto
// to indicate no muxer is selected.
if nextProto == "libp2p" {
nextProto = ""
}
return &conn{
Conn: tlsConn,
localPeer: t.localPeer,
remotePeer: remotePeerID,
remotePubKey: remotePubKey,
connectionState: network.ConnectionState{
StreamMultiplexer: protocol.ID(nextProto),
UsedEarlyMuxerNegotiation: nextProto != "",
},
}, nil
}
func (t *Transport) ID() protocol.ID {
return t.protocolID
}