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cmd/geth, cmd/utils, eth, p2p: pass and honor a no discovery flag

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This commit is contained in:
Péter Szilágyi 2015-05-26 19:07:24 +03:00
parent 278183c7e7
commit e1a0ee8fc5
4 changed files with 37 additions and 9 deletions
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1
cmd/geth/main.go
View File

@ -260,6 +260,7 @@ JavaScript API. See https://github.com/ethereum/go-ethereum/wiki/Javascipt-Conso
utils.AutoDAGFlag,
utils.NATFlag,
utils.NatspecEnabledFlag,
utils.NoDiscoverFlag,
utils.NodeKeyFileFlag,
utils.NodeKeyHexFlag,
utils.RPCEnabledFlag,

6
cmd/utils/flags.go
View File

@ -235,6 +235,10 @@ var (
Usage: "NAT port mapping mechanism (any|none|upnp|pmp|extip:<IP>)",
Value: "any",
}
NoDiscoverFlag = cli.BoolFlag{
Name: "nodiscover",
Usage: "Disables the peer discovery mechanism (manual peer addition)",
}
WhisperEnabledFlag = cli.BoolFlag{
Name: "shh",
Usage: "Enable whisper",
@ -312,6 +316,7 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
Port: ctx.GlobalString(ListenPortFlag.Name),
NAT: GetNAT(ctx),
NatSpec: ctx.GlobalBool(NatspecEnabledFlag.Name),
Discovery: !ctx.GlobalBool(NoDiscoverFlag.Name),
NodeKey: GetNodeKey(ctx),
Shh: ctx.GlobalBool(WhisperEnabledFlag.Name),
Dial: true,
@ -320,7 +325,6 @@ func MakeEthConfig(clientID, version string, ctx *cli.Context) *eth.Config {
SolcPath: ctx.GlobalString(SolcPathFlag.Name),
AutoDAG: ctx.GlobalBool(AutoDAGFlag.Name) || ctx.GlobalBool(MiningEnabledFlag.Name),
}
}
func GetChain(ctx *cli.Context) (*core.ChainManager, common.Database, common.Database) {

2
eth/backend.go
View File

@ -72,6 +72,7 @@ type Config struct {
MaxPeers int
MaxPendingPeers int
Discovery bool
Port string
// Space-separated list of discovery node URLs
@ -311,6 +312,7 @@ func New(config *Config) (*Ethereum, error) {
Name: config.Name,
MaxPeers: config.MaxPeers,
MaxPendingPeers: config.MaxPendingPeers,
Discovery: config.Discovery,
Protocols: protocols,
NAT: config.NAT,
NoDial: !config.Dial,

37
p2p/server.go
View File

@ -55,6 +55,10 @@ type Server struct {
// Zero defaults to preset values.
MaxPendingPeers int
// Discovery specifies whether the peer discovery mechanism should be started
// or not. Disabling is usually useful for protocol debugging (manual topology).
Discovery bool
// Name sets the node name of this server.
// Use common.MakeName to create a name that follows existing conventions.
Name string
@ -240,6 +244,14 @@ func (srv *Server) Self() *discover.Node {
if !srv.running {
return &discover.Node{IP: net.ParseIP("0.0.0.0")}
}
if srv.ntab == nil {
addr := srv.listener.Addr().(*net.TCPAddr)
return &discover.Node{
ID: discover.PubkeyID(&srv.PrivateKey.PublicKey),
IP: addr.IP,
TCP: uint16(addr.Port),
}
}
return srv.ntab.Self()
}
@ -290,15 +302,22 @@ func (srv *Server) Start() (err error) {
srv.peerOpDone = make(chan struct{})
// node table
ntab, err := discover.ListenUDP(srv.PrivateKey, srv.ListenAddr, srv.NAT, srv.NodeDatabase)
if err != nil {
return err
if srv.Discovery {
ntab, err := discover.ListenUDP(srv.PrivateKey, srv.ListenAddr, srv.NAT, srv.NodeDatabase)
if err != nil {
return err
}
srv.ntab = ntab
}
srv.ntab = ntab
dialer := newDialState(srv.StaticNodes, srv.ntab, srv.MaxPeers/2)
dynPeers := srv.MaxPeers / 2
if !srv.Discovery {
dynPeers = 0
}
dialer := newDialState(srv.StaticNodes, srv.ntab, dynPeers)
// handshake
srv.ourHandshake = &protoHandshake{Version: baseProtocolVersion, Name: srv.Name, ID: ntab.Self().ID}
srv.ourHandshake = &protoHandshake{Version: baseProtocolVersion, Name: srv.Name, ID: discover.PubkeyID(&srv.PrivateKey.PublicKey)}
for _, p := range srv.Protocols {
srv.ourHandshake.Caps = append(srv.ourHandshake.Caps, p.cap())
}
@ -454,7 +473,9 @@ running:
}
// Terminate discovery. If there is a running lookup it will terminate soon.
srv.ntab.Close()
if srv.ntab != nil {
srv.ntab.Close()
}
// Disconnect all peers.
for _, p := range peers {
p.Disconnect(DiscQuitting)
@ -486,7 +507,7 @@ func (srv *Server) encHandshakeChecks(peers map[discover.NodeID]*Peer, c *conn)
return DiscTooManyPeers
case peers[c.id] != nil:
return DiscAlreadyConnected
case c.id == srv.ntab.Self().ID:
case c.id == srv.Self().ID:
return DiscSelf
default:
return nil