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Basic "chain hardening" for slightly untrusted daemons (#93)

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This commit is contained in:
Lee *!* Clagett
2024-03-07 17:39:18 -05:00
committed by Lee *!* Clagett
parent db66d410cd
commit 351ccaa872
15 changed files with 1063 additions and 82 deletions
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32
src/db/data.h
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@@ -27,6 +27,7 @@
#pragma once
#include <array>
#include <boost/multiprecision/cpp_int.hpp>
#include <boost/uuid/uuid.hpp>
#include <cassert>
#include <cstdint>
@@ -183,6 +184,7 @@ namespace db
static_assert(sizeof(account) == (4 * 2) + 64 + 32 + (8 * 2) + (4 * 2), "padding in account");
void write_bytes(wire::writer&, const account&, bool show_key = false);
//! Used with quick and full sync mode
struct block_info
{
block_id id; //!< Must be first for LMDB optimizations
@@ -191,6 +193,36 @@ namespace db
static_assert(sizeof(block_info) == 8 + 32, "padding in block_info");
WIRE_DECLARE_OBJECT(block_info);
struct block_difficulty
{
using unsigned_int = boost::multiprecision::uint128_t;
std::uint64_t high;
std::uint64_t low;
void set_difficulty(const unsigned_int& in);
unsigned_int get_difficulty() const;
};
static_assert(sizeof(block_difficulty) == 8 * 2, "padding in block_difficulty");
WIRE_DECLARE_OBJECT(block_difficulty);
//! Used with untrusted daemons / full sync mode
struct block_pow
{
block_id id;
std::uint64_t timestamp;
block_difficulty cumulative_diff;
};
static_assert(sizeof(block_pow) == 8 * 4, "padding in blow_pow");
WIRE_DECLARE_OBJECT(block_pow);
//! Used during sync "check-ins" if --untrusted-daemon
struct pow_sync
{
std::uint64_t timestamp;
block_difficulty cumulative_diff;
};
//! `output`s and `spend`s are sorted by these fields to make merging easier.
struct transaction_link
{