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- // Copyright 2015 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package p2p
- import (
- "errors"
- "reflect"
- "sync"
- "testing"
- "github.com/davecgh/go-spew/spew"
- "github.com/ethereum/go-ethereum/crypto"
- "github.com/ethereum/go-ethereum/p2p/simulations/pipes"
- )
- func TestProtocolHandshake(t *testing.T) {
- var (
- prv0, _ = crypto.GenerateKey()
- pub0 = crypto.FromECDSAPub(&prv0.PublicKey)[1:]
- hs0 = &protoHandshake{Version: 3, ID: pub0, Caps: []Cap{{"a", 0}, {"b", 2}}}
- prv1, _ = crypto.GenerateKey()
- pub1 = crypto.FromECDSAPub(&prv1.PublicKey)[1:]
- hs1 = &protoHandshake{Version: 3, ID: pub1, Caps: []Cap{{"c", 1}, {"d", 3}}}
- wg sync.WaitGroup
- )
- fd0, fd1, err := pipes.TCPPipe()
- if err != nil {
- t.Fatal(err)
- }
- wg.Add(2)
- go func() {
- defer wg.Done()
- defer fd0.Close()
- frame := newRLPX(fd0, &prv1.PublicKey)
- rpubkey, err := frame.doEncHandshake(prv0)
- if err != nil {
- t.Errorf("dial side enc handshake failed: %v", err)
- return
- }
- if !reflect.DeepEqual(rpubkey, &prv1.PublicKey) {
- t.Errorf("dial side remote pubkey mismatch: got %v, want %v", rpubkey, &prv1.PublicKey)
- return
- }
- phs, err := frame.doProtoHandshake(hs0)
- if err != nil {
- t.Errorf("dial side proto handshake error: %v", err)
- return
- }
- phs.Rest = nil
- if !reflect.DeepEqual(phs, hs1) {
- t.Errorf("dial side proto handshake mismatch:\ngot: %s\nwant: %s\n", spew.Sdump(phs), spew.Sdump(hs1))
- return
- }
- frame.close(DiscQuitting)
- }()
- go func() {
- defer wg.Done()
- defer fd1.Close()
- rlpx := newRLPX(fd1, nil)
- rpubkey, err := rlpx.doEncHandshake(prv1)
- if err != nil {
- t.Errorf("listen side enc handshake failed: %v", err)
- return
- }
- if !reflect.DeepEqual(rpubkey, &prv0.PublicKey) {
- t.Errorf("listen side remote pubkey mismatch: got %v, want %v", rpubkey, &prv0.PublicKey)
- return
- }
- phs, err := rlpx.doProtoHandshake(hs1)
- if err != nil {
- t.Errorf("listen side proto handshake error: %v", err)
- return
- }
- phs.Rest = nil
- if !reflect.DeepEqual(phs, hs0) {
- t.Errorf("listen side proto handshake mismatch:\ngot: %s\nwant: %s\n", spew.Sdump(phs), spew.Sdump(hs0))
- return
- }
- if err := ExpectMsg(rlpx, discMsg, []DiscReason{DiscQuitting}); err != nil {
- t.Errorf("error receiving disconnect: %v", err)
- }
- }()
- wg.Wait()
- }
- func TestProtocolHandshakeErrors(t *testing.T) {
- tests := []struct {
- code uint64
- msg interface{}
- err error
- }{
- {
- code: discMsg,
- msg: []DiscReason{DiscQuitting},
- err: DiscQuitting,
- },
- {
- code: 0x989898,
- msg: []byte{1},
- err: errors.New("expected handshake, got 989898"),
- },
- {
- code: handshakeMsg,
- msg: make([]byte, baseProtocolMaxMsgSize+2),
- err: errors.New("message too big"),
- },
- {
- code: handshakeMsg,
- msg: []byte{1, 2, 3},
- err: newPeerError(errInvalidMsg, "(code 0) (size 4) rlp: expected input list for p2p.protoHandshake"),
- },
- {
- code: handshakeMsg,
- msg: &protoHandshake{Version: 3},
- err: DiscInvalidIdentity,
- },
- }
- for i, test := range tests {
- p1, p2 := MsgPipe()
- go Send(p1, test.code, test.msg)
- _, err := readProtocolHandshake(p2)
- if !reflect.DeepEqual(err, test.err) {
- t.Errorf("test %d: error mismatch: got %q, want %q", i, err, test.err)
- }
- }
- }
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