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Add calcpow RPC 

Calculate PoW hash for a block candidate
This commit is contained in:
Howard Chu 2021-11-19 23:22:43 +00:00
parent 72e778a04c
commit c09054bbf9
No known key found for this signature in database
GPG Key ID: FD2A70B44AB11BA7
5 changed files with 73 additions and 5 deletions
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13
src/cryptonote_core/cryptonote_tx_utils.cpp
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@ -676,7 +676,7 @@ namespace cryptonote
rx_slow_hash(main_height, seed_height, seed_hash.data, bd.data(), bd.size(), res.data, 0, 1);
}
bool get_block_longhash(const Blockchain *pbc, const block& b, crypto::hash& res, const uint64_t height, const crypto::hash *seed_hash, const int miners)
bool get_block_longhash(const Blockchain *pbc, const blobdata& bd, crypto::hash& res, const uint64_t height, const int major_version, const crypto::hash *seed_hash, const int miners)
{
// block 202612 bug workaround
if (height == 202612)
@ -685,8 +685,7 @@ namespace cryptonote
epee::string_tools::hex_to_pod(longhash_202612, res);
return true;
}
blobdata bd = get_block_hashing_blob(b);
if (b.major_version >= RX_BLOCK_VERSION)
if (major_version >= RX_BLOCK_VERSION)
{
uint64_t seed_height, main_height;
crypto::hash hash;
@ -703,12 +702,18 @@ namespace cryptonote
}
rx_slow_hash(main_height, seed_height, hash.data, bd.data(), bd.size(), res.data, seed_hash ? 0 : miners, !!seed_hash);
} else {
const int pow_variant = b.major_version >= 7 ? b.major_version - 6 : 0;
const int pow_variant = major_version >= 7 ? major_version - 6 : 0;
crypto::cn_slow_hash(bd.data(), bd.size(), res, pow_variant, height);
}
return true;
}
bool get_block_longhash(const Blockchain *pbc, const block& b, crypto::hash& res, const uint64_t height, const crypto::hash *seed_hash, const int miners)
{
blobdata bd = get_block_hashing_blob(b);
return get_block_longhash(pbc, bd, res, height, b.major_version, seed_hash, miners);
}
bool get_block_longhash(const Blockchain *pbc, const block& b, crypto::hash& res, const uint64_t height, const int miners)
{
return get_block_longhash(pbc, b, res, height, NULL, miners);

2
src/cryptonote_core/cryptonote_tx_utils.h
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@ -142,6 +142,8 @@ namespace cryptonote
);
class Blockchain;
bool get_block_longhash(const Blockchain *pb, const blobdata& bd, crypto::hash& res, const uint64_t height,
const int major_version, const crypto::hash *seed_hash, const int miners);
bool get_block_longhash(const Blockchain *pb, const block& b, crypto::hash& res, const uint64_t height, const int miners);
bool get_block_longhash(const Blockchain *pb, const block& b, crypto::hash& res, const uint64_t height, const crypto::hash *seed_hash, const int miners);
void get_altblock_longhash(const block& b, crypto::hash& res, const uint64_t main_height, const uint64_t height,

37
src/rpc/core_rpc_server.cpp
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@ -1888,6 +1888,43 @@ namespace cryptonote
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_calcpow(const COMMAND_RPC_CALCPOW::request& req, COMMAND_RPC_CALCPOW::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx)
{
RPC_TRACKER(calcpow);
blobdata blockblob;
if(!string_tools::parse_hexstr_to_binbuff(req.block_blob, blockblob))
{
error_resp.code = CORE_RPC_ERROR_CODE_WRONG_BLOCKBLOB;
error_resp.message = "Wrong block blob";
return false;
}
if(!m_core.check_incoming_block_size(blockblob))
{
error_resp.code = CORE_RPC_ERROR_CODE_WRONG_BLOCKBLOB_SIZE;
error_resp.message = "Block blob size is too big, rejecting block";
return false;
}
crypto::hash seed_hash, pow_hash;
std::string buf;
if(req.seed_hash.size())
{
if (!string_tools::parse_hexstr_to_binbuff(req.seed_hash, buf) ||
buf.size() != sizeof(crypto::hash))
{
error_resp.code = CORE_RPC_ERROR_CODE_WRONG_PARAM;
error_resp.message = "Wrong seed hash";
return false;
}
buf.copy(reinterpret_cast<char *>(&seed_hash), sizeof(crypto::hash));
}
cryptonote::get_block_longhash(&(m_core.get_blockchain_storage()), blockblob, pow_hash, req.height,
req.major_version, req.seed_hash.size() ? &seed_hash : NULL, 0);
res = string_tools::pod_to_hex(pow_hash);
return true;
}
//------------------------------------------------------------------------------------------------------------------------------
bool core_rpc_server::on_submitblock(const COMMAND_RPC_SUBMITBLOCK::request& req, COMMAND_RPC_SUBMITBLOCK::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx)
{
RPC_TRACKER(submitblock);

2
src/rpc/core_rpc_server.h
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@ -149,6 +149,7 @@ namespace cryptonote
MAP_JON_RPC_WE("get_block_template", on_getblocktemplate, COMMAND_RPC_GETBLOCKTEMPLATE)
MAP_JON_RPC_WE("getblocktemplate", on_getblocktemplate, COMMAND_RPC_GETBLOCKTEMPLATE)
MAP_JON_RPC_WE("get_miner_data", on_getminerdata, COMMAND_RPC_GETMINERDATA)
MAP_JON_RPC_WE_IF("calc_pow", on_calcpow, COMMAND_RPC_CALCPOW, !m_restricted)
MAP_JON_RPC_WE("submit_block", on_submitblock, COMMAND_RPC_SUBMITBLOCK)
MAP_JON_RPC_WE("submitblock", on_submitblock, COMMAND_RPC_SUBMITBLOCK)
MAP_JON_RPC_WE_IF("generateblocks", on_generateblocks, COMMAND_RPC_GENERATEBLOCKS, !m_restricted)
@ -230,6 +231,7 @@ namespace cryptonote
bool on_getblockhash(const COMMAND_RPC_GETBLOCKHASH::request& req, COMMAND_RPC_GETBLOCKHASH::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx = NULL);
bool on_getblocktemplate(const COMMAND_RPC_GETBLOCKTEMPLATE::request& req, COMMAND_RPC_GETBLOCKTEMPLATE::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx = NULL);
bool on_getminerdata(const COMMAND_RPC_GETMINERDATA::request& req, COMMAND_RPC_GETMINERDATA::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx = NULL);
bool on_calcpow(const COMMAND_RPC_CALCPOW::request& req, COMMAND_RPC_CALCPOW::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx = NULL);
bool on_submitblock(const COMMAND_RPC_SUBMITBLOCK::request& req, COMMAND_RPC_SUBMITBLOCK::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx = NULL);
bool on_generateblocks(const COMMAND_RPC_GENERATEBLOCKS::request& req, COMMAND_RPC_GENERATEBLOCKS::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx = NULL);
bool on_get_last_block_header(const COMMAND_RPC_GET_LAST_BLOCK_HEADER::request& req, COMMAND_RPC_GET_LAST_BLOCK_HEADER::response& res, epee::json_rpc::error& error_resp, const connection_context *ctx = NULL);

24
src/rpc/core_rpc_server_commands_defs.h
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@ -88,7 +88,7 @@ namespace cryptonote
// advance which version they will stop working with
// Don't go over 32767 for any of these
#define CORE_RPC_VERSION_MAJOR 3
#define CORE_RPC_VERSION_MINOR 8
#define CORE_RPC_VERSION_MINOR 9
#define MAKE_CORE_RPC_VERSION(major,minor) (((major)<<16)|(minor))
#define CORE_RPC_VERSION MAKE_CORE_RPC_VERSION(CORE_RPC_VERSION_MAJOR, CORE_RPC_VERSION_MINOR)
@ -988,6 +988,28 @@ namespace cryptonote
typedef epee::misc_utils::struct_init<response_t> response;
};
struct COMMAND_RPC_CALCPOW
{
struct request_t: public rpc_request_base
{
uint8_t major_version;
uint64_t height;
blobdata block_blob;
std::string seed_hash;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE_PARENT(rpc_request_base)
KV_SERIALIZE(major_version)
KV_SERIALIZE(height)
KV_SERIALIZE(block_blob)
KV_SERIALIZE(seed_hash)
END_KV_SERIALIZE_MAP()
};
typedef epee::misc_utils::struct_init<request_t> request;
typedef std::string response;
};
struct COMMAND_RPC_SUBMITBLOCK
{
typedef std::vector<std::string> request;