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Merge #8872: Remove block-request logic from INV message processing

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037159c Remove block-request logic from INV message processing (Matt Corallo)
3451203 [qa] Respond to getheaders and do not assume a getdata on inv (Matt Corallo)
d768f15 [qa] Make comptool push blocks instead of relying on inv-fetch (mrbandrews)
This commit is contained in:
Wladimir J. van der Laan 2016-11-21 15:35:53 +01:00 committed by Alexander Block
parent 726dd1f8a3
commit e5cc7d0eb4
3 changed files with 27 additions and 24 deletions
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11
qa/rpc-tests/sendheaders.py
View File

@ -364,14 +364,13 @@ class SendHeadersTest(BitcoinTestFramework):
if j == 0:
# Announce via inv
test_node.send_block_inv(tip)
test_node.wait_for_getdata([tip], timeout=5)
test_node.wait_for_getheaders(timeout=5)
# Should have received a getheaders now
test_node.send_header_for_blocks(blocks)
# Test that duplicate inv's won't result in duplicate
# getdata requests, or duplicate headers announcements
inv_node.send_block_inv(tip)
# Should have received a getheaders as well!
test_node.send_header_for_blocks(blocks)
test_node.wait_for_getdata([x.sha256 for x in blocks[0:-1]], timeout=5)
[ inv_node.send_block_inv(x.sha256) for x in blocks[0:-1] ]
[ inv_node.send_block_inv(x.sha256) for x in blocks ]
test_node.wait_for_getdata([x.sha256 for x in blocks], timeout=5)
inv_node.sync_with_ping()
else:
# Announce via headers

15
qa/rpc-tests/test_framework/comptool.py
View File

@ -111,6 +111,11 @@ class TestNode(NodeConnCB):
m.locator = self.block_store.get_locator(self.bestblockhash)
self.conn.send_message(m)
def send_header(self, header):
m = msg_headers()
m.headers.append(header)
self.conn.send_message(m)
# This assumes BIP31
def send_ping(self, nonce):
self.pingMap[nonce] = True
@ -345,8 +350,16 @@ class TestManager(object):
# Either send inv's to each node and sync, or add
# to invqueue for later inv'ing.
if (test_instance.sync_every_block):
# if we expect success, send inv and sync every block
# if we expect failure, just push the block and see what happens.
if outcome == True:
[ c.cb.send_inv(block) for c in self.connections ]
self.sync_blocks(block.sha256, 1)
else:
[ c.send_message(msg_block(block)) for c in self.connections ]
[ c.cb.send_ping(self.ping_counter) for c in self.connections ]
self.wait_for_pings(self.ping_counter)
self.ping_counter += 1
if (not self.check_results(tip, outcome)):
raise AssertionError("Test failed at test %d" % test_number)
else:
@ -354,6 +367,8 @@ class TestManager(object):
elif isinstance(b_or_t, CBlockHeader):
block_header = b_or_t
self.block_store.add_header(block_header)
[ c.cb.send_header(block_header) for c in self.connections ]
else: # Tx test runner
assert(isinstance(b_or_t, CTransaction))
tx = b_or_t

21
src/net_processing.cpp
View File

@ -1430,23 +1430,12 @@ bool static ProcessMessage(CNode* pfrom, string strCommand, CDataStream& vRecv,
LogPrint("net", "delaying getheaders (%d) %s to peer=%d\n", pindexBestHeader->nHeight, inv.hash.ToString(), pfrom->id);
pfrom->PushBlockHashFromINV(inv.hash);
} else {
// First request the headers preceding the announced block. In the normal fully-synced
// case where a new block is announced that succeeds the current tip (no reorganization),
// there are no such headers.
// Secondly, and only when we are close to being synced, we request the announced block directly,
// to avoid an extra round-trip. Note that we must *first* ask for the headers, so by the
// time the block arrives, the header chain leading up to it is already validated. Not
// doing this will result in the received block being rejected as an orphan in case it is
// not a direct successor.
// We used to request the full block here, but since headers-announcements are now the
// primary method of announcement on the network, and since, in the case that a node
// fell back to inv we probably have a reorg which we should get the headers for first,
// we now only provide a getheaders response here. When we receive the headers, we will
// then ask for the blocks we need.
connman.PushMessage(pfrom, NetMsgType::GETHEADERS, chainActive.GetLocator(pindexBestHeader), inv.hash);
CNodeState *nodestate = State(pfrom->GetId());
if (CanDirectFetch(chainparams.GetConsensus()) &&
nodestate->nBlocksInFlight < MAX_BLOCKS_IN_TRANSIT_PER_PEER) {
vToFetch.push_back(inv);
// Mark block as in flight already, even though the actual "getdata" message only goes out
// later (within the same cs_main lock, though).
MarkBlockAsInFlight(pfrom->GetId(), inv.hash, chainparams.GetConsensus());
}
LogPrint("net", "getheaders (%d) %s to peer=%d\n", pindexBestHeader->nHeight, inv.hash.ToString(), pfrom->id);
}
}