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Dynafed RPC support, tests, and deployment for custom chains

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This commit is contained in:
Gregory Sanders 2019-05-31 14:03:02 -04:00
parent aac354b5ba
commit 47db75e39f
15 changed files with 849 additions and 342 deletions
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120
src/rpc/blockchain.cpp
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@ -33,6 +33,8 @@
#include <validationinterface.h>
#include <versionbitsinfo.h>
#include <warnings.h>
#include <pegins.h>
#include <dynafed.h>
#include <assert.h>
#include <stdint.h>
@ -79,6 +81,29 @@ double GetDifficulty(const CBlockIndex* blockindex)
return dDiff;
}
UniValue paramEntryToJSON(const ConsensusParamEntry& entry)
{
UniValue result(UniValue::VOBJ);
result.pushKV("signblockscript", HexStr(entry.m_signblockscript));
result.pushKV("max_block_witness", (uint64_t)entry.m_sbs_wit_limit);
result.pushKV("fedpegscript", HexStr(entry.m_fedpegscript));
UniValue result_extension(UniValue::VARR);
for (auto& item : entry.m_extension_space) {
result_extension.push_back(HexStr(item));
}
result.pushKV("extension_space", result_extension);
return result;
}
UniValue dynaParamsToJSON(const DynaFedParams& d_params)
{
AssertLockHeld(cs_main);
UniValue ret(UniValue::VOBJ);
ret.pushKV("current", paramEntryToJSON(d_params.m_current));
ret.pushKV("proposed", paramEntryToJSON(d_params.m_proposed));
return ret;
}
static int ComputeNextBlockAndDepth(const CBlockIndex* tip, const CBlockIndex* blockindex, const CBlockIndex*& next)
{
next = tip->GetAncestor(blockindex->nHeight + 1);
@ -110,6 +135,9 @@ UniValue blockheaderToJSON(const CBlockIndex* tip, const CBlockIndex* blockindex
} else {
result.pushKV("signblock_witness_asm", ScriptToAsmStr(blockindex->proof.solution));
result.pushKV("signblock_witness_hex", HexStr(blockindex->proof.solution));
if (!blockindex->d_params.IsNull()) {
result.pushKV("dynamic_parameters", dynaParamsToJSON(blockindex->d_params));
}
}
result.pushKV("nTx", (uint64_t)blockindex->nTx);
if (blockindex->pprev)
@ -154,9 +182,13 @@ UniValue blockToJSON(const CBlock& block, const CBlockIndex* tip, const CBlockIn
result.pushKV("difficulty", GetDifficulty(blockindex));
result.pushKV("chainwork", blockindex->nChainWork.GetHex());
} else {
result.pushKV("signblock_witness_asm", ScriptToAsmStr(blockindex->proof.solution));
result.pushKV("signblock_witness_hex", HexStr(blockindex->proof.solution));
result.pushKV("signblock_challenge", HexStr(blockindex->proof.challenge));
if (block.m_dyna_params.IsNull()) {
result.pushKV("signblock_witness_asm", ScriptToAsmStr(blockindex->proof.solution));
result.pushKV("signblock_witness_hex", HexStr(blockindex->proof.solution));
result.pushKV("signblock_challenge", HexStr(blockindex->proof.challenge));
} else {
result.pushKV("dynamic_parameters", dynaParamsToJSON(block.m_dyna_params));
}
}
result.pushKV("nTx", (uint64_t)blockindex->nTx);
@ -771,6 +803,24 @@ static UniValue getblockheader(const JSONRPCRequest& request)
" \"nTx\" : n, (numeric) The number of transactions in the block.\n"
" \"signblock_witness_asm\" : \"xxxx\", (string) ASM of sign block witness data.\n"
" \"signblock_witness_hex\" : \"xxxx\", (string) Hex of sign block witness data.\n"
" \"dynamic_parameters\" : (obj) Dynamic federation parameters in the block, if any.\n"
" {\n"
" \"current\" : (obj) enforced dynamic federation parameters. Do note that only the signblockscript is published for each block, while others are published only at epoch start.\n"
" {\n"
" \"signblockscript\" : \"xxxx\", (string) signblock script in hex\n"
" \"max_block_witness\" : x, (numeric) Maximum serialized size of the block witness stack\n"
" \"fedpegscript\" : \"xxxx\", (string) fedpegscript in hex\n"
" \"extension_space\" : (array) Array of hex-encoded strings\n"
" [\n"
" xxxx,\n"
" ...\n"
" ]\n"
" }\n"
" \"proposed\" : (obj) Proposed paramaters. Uninforced. Must be published in full.\n"
" {\n"
" ... same entries as current\n"
" }\n"
" }\n"
" \"previousblockhash\" : \"hash\", (string) The hash of the previous block\n"
" \"nextblockhash\" : \"hash\", (string) The hash of the next block\n"
"}\n"
@ -873,6 +923,24 @@ static UniValue getblock(const JSONRPCRequest& request)
" \"nTx\" : n, (numeric) The number of transactions in the block.\n"
" \"signblock_witness_asm\" : \"xxxx\", (string) ASM of sign block witness data.\n"
" \"signblock_witness_hex\" : \"xxxx\", (string) Hex of sign block witness data.\n"
" \"dynamic_parameters\" : (obj) Dynamic federation parameters in the block, if any.\n"
" {\n"
" \"current\" : (obj) enforced dynamic federation parameters. Do note that only the signblockscript is published for each block, while others are published only at epoch start.\n"
" {\n"
" \"signblockscript\" : \"xxxx\", (string) signblock script in hex\n"
" \"max_block_witness\" : x, (numeric) Maximum serialized size of the block witness stack\n"
" \"fedpegscript\" : \"xxxx\", (string) fedpegscript in hex\n"
" \"extension_space\" : (array) Array of hex-encoded strings\n"
" [\n"
" xxxx,\n"
" ...\n"
" ]\n"
" }\n"
" \"proposed\" : (obj) Proposed paramaters. Uninforced. Must be published in full.\n"
" {\n"
" ... same entries as current\n"
" }\n"
" }\n"
" \"previousblockhash\" : \"hash\", (string) The hash of the previous block\n"
" \"nextblockhash\" : \"hash\" (string) The hash of the next block\n"
"}\n"
@ -1310,8 +1378,14 @@ UniValue getblockchaininfo(const JSONRPCRequest& request)
" \"chainwork\": \"xxxx\" (string) total amount of work in active chain, in hexadecimal\n"
" \"size_on_disk\": xxxxxx, (numeric) the estimated size of the block and undo files on disk\n"
" \"pruned\": xx, (boolean) if the blocks are subject to pruning\n"
" \"signblock_asm\" : \"xxxx\", (string) ASM of sign block challenge data.\n"
" \"signblock_hex\" : \"xxxx\", (string) Hex of sign block challenge data.\n"
" \"signblock_asm\" : \"xxxx\", (string) ASM of sign block challenge data from genesis block.\n"
" \"signblock_hex\" : \"xxxx\", (string) Hex of sign block challenge data from genesis block.\n"
" \"current_signblock_asm\" : \"xxxx\", (string) ASM of sign block challenge data enforced on the next block.\n"
" \"current_signblock_hex\" : \"xxxx\", (string) Hex of sign block challenge data enforced on the next block.\n"
" \"max_block_witness\" : xx, (numeric) maximum sized block witness serialized size for the next block.\n"
" \"epoch_length\" : xx, (numeric) Length of dynamic federations epoch, or signaling period\n"
" \"epoch_age\" : xx, (numeric) number of blocks into a dynamic federation epoch chain tip is. This number is between 0 to epoch_length-1\n"
" \"extension_space\" : [\"xxxx\", ...], (array) Array of extension fields in dynamic blockheader\n"
" \"pruneheight\": xxxxxx, (numeric) lowest-height complete block stored (only present if pruning is enabled)\n"
" \"automatic_pruning\": xx, (boolean) whether automatic pruning is enabled (only present if pruning is enabled)\n"
" \"prune_target_size\": xxxxxx, (numeric) the target size used by pruning (only present if automatic pruning is enabled)\n"
@ -1374,6 +1448,28 @@ UniValue getblockchaininfo(const JSONRPCRequest& request)
CScript sign_block_script = chainparams.GetConsensus().signblockscript;
obj.pushKV("signblock_asm", ScriptToAsmStr(sign_block_script));
obj.pushKV("signblock_hex", HexStr(sign_block_script));
if (!IsDynaFedEnabled(chainActive.Tip(), chainparams.GetConsensus())) {
obj.pushKV("current_signblock_asm", ScriptToAsmStr(sign_block_script));
obj.pushKV("current_signblock_hex", HexStr(sign_block_script));
obj.pushKV("max_block_witness", (uint64_t)chainparams.GetConsensus().max_block_signature_size);
UniValue arr(UniValue::VARR);
for (const auto& extension : chainparams.GetConsensus().first_extension_space) {
arr.push_back(HexStr(extension));
}
obj.pushKV("extension_space", arr);
} else {
const ConsensusParamEntry entry = ComputeNextBlockFullCurrentParameters(chainActive.Tip(), chainparams.GetConsensus());
obj.pushKV("current_signblock_asm", ScriptToAsmStr(entry.m_signblockscript));
obj.pushKV("current_signblock_hex", HexStr(entry.m_signblockscript));
obj.pushKV("max_block_witness", (uint64_t)entry.m_sbs_wit_limit);
UniValue arr(UniValue::VARR);
for (const auto& extension : entry.m_extension_space) {
arr.push_back(HexStr(extension));
}
obj.pushKV("extension_space", arr);
obj.pushKV("epoch_length", (uint64_t)chainparams.GetConsensus().dynamic_epoch_length);
obj.pushKV("epoch_age", (uint64_t)(chainActive.Tip()->nHeight % chainparams.GetConsensus().dynamic_epoch_length));
}
}
if (fPruneMode) {
@ -2407,7 +2503,12 @@ UniValue getsidechaininfo(const JSONRPCRequest& request)
{},
RPCResult{
"{\n"
" \"fedpegscript\": \"xxxx\", (string) The fedpegscript in hex\n"
" \"fedpegscript\": \"xxxx\", (string) The fedpegscript in hex from genesis block\n"
" \"current_fedpegscripts\": (array) The currently-enforced fedpegscripts in hex. Peg-ins for any entries on this list are honored by consensus and policy. Oldest first. Two total entries are possible.\n"
" [\n"
" \"xxxx\", (string) Hex-encoded active fedpegscript\n"
" ...\n"
" ]\n"
" \"pegged_asset\" : \"xxxx\", (string) Pegged asset type in hex\n"
" \"min_peg_diff\" : \"xxxx\", (string) The minimum difficulty parent chain header target. Peg-in headers that have less work will be rejected as an anti-Dos measure.\n"
" \"parent_blockhash\" : \"xxxx\", (string) The parent genesis blockhash as source of pegged-in funds.\n"
@ -2432,6 +2533,13 @@ UniValue getsidechaininfo(const JSONRPCRequest& request)
UniValue obj(UniValue::VOBJ);
obj.pushKV("fedpegscript", HexStr(consensus.fedpegScript.begin(), consensus.fedpegScript.end()));
// We use mempool_validation as true to show what is enforced for *next* block
std::vector<CScript> fedpegscripts = GetValidFedpegScripts(chainActive.Tip(), consensus, true /* nextblock_validation */);
UniValue fedpeg_entries(UniValue::VARR);
for (const auto& script : fedpegscripts) {
fedpeg_entries.push_back(HexStr(script));
}
obj.pushKV("current_fedpegscripts", fedpeg_entries);
obj.pushKV("pegged_asset", consensus.pegged_asset.GetHex());
obj.pushKV("min_peg_diff", consensus.parentChainPowLimit.GetHex());
obj.pushKV("parent_blockhash", parent_blockhash.GetHex());