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2WP: QA: Introduce -con_parent_chain_signblockscript

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This allows other elements chains as parent chains for pegs, for testing purposes

for now it also assumes that the parent chain has CT/CA tx format,
which is orthogonal to the parent chain having pow or signed blocks

It would be nice to also test bitcoin-like chains with signed blocks
instead of pow by adding another parameter -con_parent_chain_has_CT or
similar and decouple the logic

Introduce -con_parent_pegged_asset option to check the asset in the
peg-in txs from the parent chains.

CT: Introduce GetAmountFromParentChainPegin for CT txs
RPC: Adapt rpcwallet to initial -con_parent_chain_has_pow
Introduce CheckProofGeneric
Introduce pow::CheckProofParent
This commit is contained in:
Jorge Timón 2018-07-10 04:53:49 +02:00
parent 781953b6bd
commit 2de576525b
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GPG key ID: 8866C18EA1C944A2
9 changed files with 116 additions and 27 deletions
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56
src/validation.cpp
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@ -17,6 +17,7 @@
#include "crypto/hmac_sha256.h"
#include "init.h"
#include "issuance.h"
#include "merkleblock.h"
#include "policy/fees.h"
#include "policy/policy.h"
#include "pow.h"
@ -2374,6 +2375,21 @@ bool GetAmountFromParentChainPegin(CAmount& amount, const Sidechain::Bitcoin::CT
return true;
}
bool GetAmountFromParentChainPegin(CAmount& amount, const CTransaction& txBTC, unsigned int nOut)
{
if (!txBTC.vout[nOut].nValue.IsExplicit()) {
return false;
}
if (!txBTC.vout[nOut].nAsset.IsExplicit()) {
return false;
}
if (txBTC.vout[nOut].nAsset.GetAsset() != Params().GetConsensus().parent_pegged_asset) {
return false;
}
amount = txBTC.vout[nOut].nValue.GetAmount();
return true;
}
template<typename T>
static bool GetBlockAndTxFromMerkleBlock(uint256& block_hash, uint256& tx_hash, T& merkle_block, const std::vector<unsigned char>& merkle_block_raw)
{
@ -2497,20 +2513,36 @@ bool IsValidPeginWitness(const CScriptWitness& pegin_witness, const COutPoint& p
uint256 block_hash;
uint256 tx_hash;
// Get txout proof
Sidechain::Bitcoin::CMerkleBlock merkle_block;
if (!GetBlockAndTxFromMerkleBlock(block_hash, tx_hash, merkle_block, stack[5])) {
return false;
}
if (!CheckBitcoinProof(block_hash, merkle_block.header.nBits)) {
return false;
}
if (Params().GetConsensus().ParentChainHasPow()) {
// Get serialized transaction
Sidechain::Bitcoin::CTransactionRef pegtx;
if (!CheckPeginTx(stack[4], pegtx, prevout, value, claim_script)) {
return false;
Sidechain::Bitcoin::CMerkleBlock merkle_block_pow;
if (!GetBlockAndTxFromMerkleBlock(block_hash, tx_hash, merkle_block_pow, stack[5])) {
return false;
}
if (!CheckBitcoinProof(block_hash, merkle_block_pow.header.nBits)) {
return false;
}
Sidechain::Bitcoin::CTransactionRef pegtx;
if (!CheckPeginTx(stack[4], pegtx, prevout, value, claim_script)) {
return false;
}
} else {
CMerkleBlock merkle_block;
if (!GetBlockAndTxFromMerkleBlock(block_hash, tx_hash, merkle_block, stack[5])) {
return false;
}
if (!CheckProofSignedParent(merkle_block.header, Params().GetConsensus())) {
return false;
}
CTransactionRef pegtx;
if (!CheckPeginTx(stack[4], pegtx, prevout, value, claim_script)) {
return false;
}
}
// Check that the merkle proof corresponds to the txid