forked from cerc-io/plugeth
eth/downloader: test registration rejection on head ban
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c4f224932f
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4ed3509a02
@ -169,8 +169,9 @@ func (dl *downloadTester) getBlocks(id string) func([]common.Hash) error {
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}
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}
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func (dl *downloadTester) newPeer(id string, td *big.Int, hash common.Hash) {
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dl.downloader.RegisterPeer(id, hash, dl.getHashes, dl.getBlocks(id))
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// newPeer registers a new block download source into the syncer.
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func (dl *downloadTester) newPeer(id string, td *big.Int, hash common.Hash) error {
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return dl.downloader.RegisterPeer(id, hash, dl.getHashes, dl.getBlocks(id))
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}
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// Tests that simple synchronization, without throttling from a good peer works.
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@ -559,6 +560,13 @@ func TestBannedChainStarvationAttack(t *testing.T) {
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}
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banned = bans
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}
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// Check that after banning an entire chain, bad peers get dropped
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if err := tester.newPeer("new attacker", big.NewInt(10000), hashes[0]); err != errBannedHead {
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t.Fatalf("peer registration mismatch: have %v, want %v", err, errBannedHead)
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}
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if peer := tester.downloader.peers.Peer("net attacker"); peer != nil {
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t.Fatalf("banned attacker registered: %v", peer)
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}
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}
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// Tests that if a peer sends excessively many/large invalid chains that are
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