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p2p, p2p/discover: track bootstrap state in p2p/discover

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This change simplifies the dial scheduling logic because it
no longer needs to track whether the discovery table has been
bootstrapped.
This commit is contained in:
Felix Lange
2015-12-07 12:06:49 +01:00
parent d1f507b7f1
commit 04c6369a09
6 changed files with 110 additions and 91 deletions
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12
p2p/discover/udp.go
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@ -114,13 +114,11 @@ func makeEndpoint(addr *net.UDPAddr, tcpPort uint16) rpcEndpoint {
return rpcEndpoint{IP: ip, UDP: uint16(addr.Port), TCP: tcpPort}
}
func nodeFromRPC(rn rpcNode) (n *Node, valid bool) {
func nodeFromRPC(rn rpcNode) (*Node, error) {
// TODO: don't accept localhost, LAN addresses from internet hosts
// TODO: check public key is on secp256k1 curve
if rn.IP.IsMulticast() || rn.IP.IsUnspecified() || rn.UDP == 0 {
return nil, false
}
return NewNode(rn.ID, rn.IP, rn.UDP, rn.TCP), true
n := NewNode(rn.ID, rn.IP, rn.UDP, rn.TCP)
err := n.validateComplete()
return n, err
}
func nodeToRPC(n *Node) rpcNode {
@ -271,7 +269,7 @@ func (t *udp) findnode(toid NodeID, toaddr *net.UDPAddr, target NodeID) ([]*Node
reply := r.(*neighbors)
for _, rn := range reply.Nodes {
nreceived++
if n, valid := nodeFromRPC(rn); valid {
if n, err := nodeFromRPC(rn); err == nil {
nodes = append(nodes, n)
}
}