Merge #17946: Fix GBT: Restore "!segwit" and "csv" to "rules" key

412d5fe879 QA: feature_segwit: Check that template "rules" includes "!segwit" as appropriate (Luke Dashjr)
2abe8cc3b7 Bugfix: Include "csv","!segwit" in "rules" (Luke Dashjr)

Pull request description:

  #16060 removed CSV & segwit from versionbits, breaking the "rules" key returned by GBT.

  Without this, miners don't know they're mining segwit blocks, and should fall back to pre-segwit block creation.

ACKs for top commit:
  sipa:
    ACK 412d5fe879
  jnewbery:
    Tested ACK 412d5fe879.

Tree-SHA512: 825d72e257dc0dd4941f2fe498d8d4f4f2a21b9505cd21a8f9eb7fb5d6d7dd9219347928cf90bb57a777920ce24295859763e64fa8a22ebb58fc2380f80f5615
This commit is contained in:
MarcoFalke 2020-05-19 08:54:18 -04:00
commit aa8d76806c
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GPG key ID: CE2B75697E69A548
2 changed files with 4 additions and 6 deletions

View file

@ -787,6 +787,8 @@ static UniValue getblocktemplate(const JSONRPCRequest& request)
result.pushKV("capabilities", aCaps);
UniValue aRules(UniValue::VARR);
aRules.push_back("csv");
if (!fPreSegWit) aRules.push_back("!segwit");
UniValue vbavailable(UniValue::VOBJ);
for (int j = 0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
Consensus::DeploymentPos pos = Consensus::DeploymentPos(j);

View file

@ -108,12 +108,7 @@ class SegWitTest(BitcoinTestFramework):
assert tmpl['sigoplimit'] == 20000
assert tmpl['transactions'][0]['hash'] == txid
assert tmpl['transactions'][0]['sigops'] == 2
tmpl = self.nodes[0].getblocktemplate({'rules': ['segwit']})
assert tmpl['sizelimit'] == 1000000
assert 'weightlimit' not in tmpl
assert tmpl['sigoplimit'] == 20000
assert tmpl['transactions'][0]['hash'] == txid
assert tmpl['transactions'][0]['sigops'] == 2
assert '!segwit' not in tmpl['rules']
self.nodes[0].generate(1) # block 162
balance_presetup = self.nodes[0].getbalance()
@ -213,6 +208,7 @@ class SegWitTest(BitcoinTestFramework):
assert tmpl['sigoplimit'] == 80000
assert tmpl['transactions'][0]['txid'] == txid
assert tmpl['transactions'][0]['sigops'] == 8
assert '!segwit' in tmpl['rules']
self.nodes[0].generate(1) # Mine a block to clear the gbt cache