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

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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
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12
p2p/enr/enr_test.go
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@ -169,6 +169,18 @@ func TestDirty(t *testing.T) {
}
}
func TestSeq(t *testing.T) {
var r Record
assert.Equal(t, uint64(0), r.Seq())
r.Set(UDP(1))
assert.Equal(t, uint64(0), r.Seq())
signTest([]byte{5}, &r)
assert.Equal(t, uint64(0), r.Seq())
r.Set(UDP(2))
assert.Equal(t, uint64(1), r.Seq())
}
// TestGetSetOverwrite tests value overwrite when setting a new value with an existing key in record.
func TestGetSetOverwrite(t *testing.T) {
var r Record