p2p, p2p/discover: add signed ENR generation (#17753)

This PR adds enode.LocalNode and integrates it into the p2p
subsystem. This new object is the keeper of the local node
record. For now, a new version of the record is produced every
time the client restarts. We'll make it smarter to avoid that in
the future.

There are a couple of other changes in this commit: discovery now
waits for all of its goroutines at shutdown and the p2p server
now closes the node database after discovery has shut down. This
fixes a leveldb crash in tests. p2p server startup is faster
because it doesn't need to wait for the external IP query
anymore.
This commit is contained in:
Felix Lange
2018-10-12 11:47:24 +02:00
committed by GitHub
parent dcae0d348b
commit 6f607de5d5
24 changed files with 979 additions and 278 deletions

View File

@ -119,16 +119,17 @@ func main() {
}
if *runv5 {
if _, err := discv5.ListenUDP(nodeKey, conn, realaddr, "", restrictList); err != nil {
if _, err := discv5.ListenUDP(nodeKey, conn, "", restrictList); err != nil {
utils.Fatalf("%v", err)
}
} else {
db, _ := enode.OpenDB("")
ln := enode.NewLocalNode(db, nodeKey)
cfg := discover.Config{
PrivateKey: nodeKey,
AnnounceAddr: realaddr,
NetRestrict: restrictList,
PrivateKey: nodeKey,
NetRestrict: restrictList,
}
if _, err := discover.ListenUDP(conn, cfg); err != nil {
if _, err := discover.ListenUDP(conn, ln, cfg); err != nil {
utils.Fatalf("%v", err)
}
}