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les: add protocol version 3 for Stop/Resume messages

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This commit is contained in:
Zsolt Felfoldi 2019-04-19 14:22:39 +02:00
parent 0f3222aaf0
commit 86d001f6e8
2 changed files with 14 additions and 5 deletions
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7
les/peer.go
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@ -144,6 +144,13 @@ func (p *peer) rejectUpdate(size uint64) bool {
// region. The client is also notified about being frozen/unfrozen with a Stop/Resume // region. The client is also notified about being frozen/unfrozen with a Stop/Resume
// message. // message.
func (p *peer) freezeClient() { func (p *peer) freezeClient() {
if p.version < lpv3 {
// if Stop/Resume is not supported then just drop the peer after setting
// its frozen status permanently
atomic.StoreUint32(&p.frozen, 1)
p.Peer.Disconnect(p2p.DiscUselessPeer)
return
}
if atomic.SwapUint32(&p.frozen, 1) == 0 { if atomic.SwapUint32(&p.frozen, 1) == 0 {
go func() { go func() {
p.SendStop() p.SendStop()

12
les/protocol.go
View file

@ -32,17 +32,18 @@ import (
// Constants to match up protocol versions and messages // Constants to match up protocol versions and messages
const ( const (
lpv2 = 2 lpv2 = 2
lpv3 = 3
) )
// Supported versions of the les protocol (first is primary) // Supported versions of the les protocol (first is primary)
var ( var (
ClientProtocolVersions = []uint{lpv2} ClientProtocolVersions = []uint{lpv2, lpv3}
ServerProtocolVersions = []uint{lpv2} ServerProtocolVersions = []uint{lpv2, lpv3}
AdvertiseProtocolVersions = []uint{lpv2} // clients are searching for the first advertised protocol in the list AdvertiseProtocolVersions = []uint{lpv2} // clients are searching for the first advertised protocol in the list
) )
// Number of implemented message corresponding to different protocol versions. // Number of implemented message corresponding to different protocol versions.
var ProtocolLengths = map[uint]uint64{lpv2: 24} var ProtocolLengths = map[uint]uint64{lpv2: 22, lpv3: 24}
const ( const (
NetworkId = 1 NetworkId = 1
@ -70,8 +71,9 @@ const (
SendTxV2Msg = 0x13 SendTxV2Msg = 0x13
GetTxStatusMsg = 0x14 GetTxStatusMsg = 0x14
TxStatusMsg = 0x15 TxStatusMsg = 0x15
StopMsg = 0x16 // Protocol messages introduced in LPV3
ResumeMsg = 0x17 StopMsg = 0x16
ResumeMsg = 0x17
) )
type requestInfo struct { type requestInfo struct {