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p2p/discv5: add deprecation warning and remove unused code (#20367)

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* p2p/discv5: add deprecation warning and remove unused code

* p2p/discv5: remove unused variables
This commit is contained in:
Felix Lange
2019-11-22 17:02:13 +01:00
committed by Péter Szilágyi
parent 0abcf03fde
commit fdff182f11
12 changed files with 18 additions and 897 deletions
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16
p2p/discv5/udp.go
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@ -27,7 +27,6 @@ import (
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/log"
"github.com/ethereum/go-ethereum/p2p/nat"
"github.com/ethereum/go-ethereum/p2p/netutil"
"github.com/ethereum/go-ethereum/rlp"
)
@ -38,15 +37,12 @@ const Version = 4
var (
errPacketTooSmall = errors.New("too small")
errBadPrefix = errors.New("bad prefix")
errTimeout = errors.New("RPC timeout")
)
// Timeouts
const (
respTimeout = 500 * time.Millisecond
expiration = 20 * time.Second
driftThreshold = 10 * time.Second // Allowed clock drift before warning user
)
// RPC request structures
@ -187,10 +183,6 @@ func makeEndpoint(addr *net.UDPAddr, tcpPort uint16) rpcEndpoint {
return rpcEndpoint{IP: ip, UDP: uint16(addr.Port), TCP: tcpPort}
}
func (e1 rpcEndpoint) equal(e2 rpcEndpoint) bool {
return e1.UDP == e2.UDP && e1.TCP == e2.TCP && e1.IP.Equal(e2.IP)
}
func nodeFromRPC(sender *net.UDPAddr, rn rpcNode) (*Node, error) {
if err := netutil.CheckRelayIP(sender.IP, rn.IP); err != nil {
return nil, err
@ -225,7 +217,6 @@ type udp struct {
conn conn
priv *ecdsa.PrivateKey
ourEndpoint rpcEndpoint
nat nat.Interface
net *Network
}
@ -274,13 +265,6 @@ func (t *udp) sendPing(remote *Node, toaddr *net.UDPAddr, topics []Topic) (hash
return hash
}
func (t *udp) sendFindnode(remote *Node, target NodeID) {
t.sendPacket(remote.ID, remote.addr(), byte(findnodePacket), findnode{
Target: target,
Expiration: uint64(time.Now().Add(expiration).Unix()),
})
}
func (t *udp) sendNeighbours(remote *Node, results []*Node) {
// Send neighbors in chunks with at most maxNeighbors per packet
// to stay below the 1280 byte limit.