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wownero/src/blockchain_utilities/blockchain_blackball.cpp

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// Copyright (c) 2014-2018, The Monero Project
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this list of
// conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
// of conditions and the following disclaimer in the documentation and/or other
// materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its contributors may be
// used to endorse or promote products derived from this software without specific
// prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <boost/range/adaptor/transformed.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/archive/portable_binary_iarchive.hpp>
#include <boost/archive/portable_binary_oarchive.hpp>
#include "common/unordered_containers_boost_serialization.h"
#include "common/command_line.h"
#include "common/varint.h"
#include "serialization/crypto.h"
#include "cryptonote_basic/cryptonote_boost_serialization.h"
#include "cryptonote_core/tx_pool.h"
#include "cryptonote_core/cryptonote_core.h"
#include "cryptonote_core/blockchain.h"
#include "blockchain_db/blockchain_db.h"
#include "blockchain_db/db_types.h"
#include "wallet/ringdb.h"
#include "version.h"
#undef MONERO_DEFAULT_LOG_CATEGORY
#define MONERO_DEFAULT_LOG_CATEGORY "bcutil"
namespace po = boost::program_options;
using namespace epee;
using namespace cryptonote;
static const char zerokey[8] = {0};
static const MDB_val zerokval = { sizeof(zerokey), (void *)zerokey };
static uint64_t records_per_sync = 200;
static uint64_t db_flags = 0;
static MDB_dbi dbi_relative_rings;
static MDB_dbi dbi_outputs;
static MDB_dbi dbi_processed_txidx;
static MDB_dbi dbi_spent;
static MDB_dbi dbi_ring_instances;
static MDB_dbi dbi_stats;
static MDB_env *env = NULL;
struct output_data
{
uint64_t amount;
uint64_t index;
output_data(): amount(0), index(0) {}
output_data(uint64_t a, uint64_t i): amount(a), index(i) {}
bool operator==(const output_data &other) const { return other.amount == amount && other.index == index; }
};
//
// relative_rings: key_image -> vector<uint64_t>
// outputs: 128 bits -> set of key images
// processed_txidx: string -> uint64_t
// spent: 128 bits, zerokval
// ring_instances: vector<uint64_t> -> uint64_t
// stats: string -> arbitrary
//
static bool parse_db_sync_mode(std::string db_sync_mode)
{
std::vector<std::string> options;
boost::trim(db_sync_mode);
boost::split(options, db_sync_mode, boost::is_any_of(" :"));
for(const auto &option : options)
MDEBUG("option: " << option);
// default to fast:async:1
uint64_t DEFAULT_FLAGS = DBF_FAST;
if(options.size() == 0)
{
// default to fast:async:1
db_flags = DEFAULT_FLAGS;
}
bool safemode = false;
if(options.size() >= 1)
{
if(options[0] == "safe")
{
safemode = true;
db_flags = DBF_SAFE;
}
else if(options[0] == "fast")
{
db_flags = DBF_FAST;
}
else if(options[0] == "fastest")
{
db_flags = DBF_FASTEST;
records_per_sync = 1000; // default to fastest:async:1000
}
else
db_flags = DEFAULT_FLAGS;
}
if(options.size() >= 2 && !safemode)
{
char *endptr;
uint64_t bps = strtoull(options[1].c_str(), &endptr, 0);
if (*endptr == '\0')
records_per_sync = bps;
}
return true;
}
static std::string get_default_db_path()
{
boost::filesystem::path dir = tools::get_default_data_dir();
// remove .bitmonero, replace with .shared-ringdb
dir = dir.remove_filename();
dir /= ".shared-ringdb";
return dir.string();
}
static std::string get_cache_filename(boost::filesystem::path filename)
{
if (!boost::filesystem::is_directory(filename))
filename.remove_filename();
return filename.string();
}
static int compare_hash32(const MDB_val *a, const MDB_val *b)
{
const uint32_t *va = (const uint32_t*) a->mv_data;
const uint32_t *vb = (const uint32_t*) b->mv_data;
for (int n = 7; n >= 0; n--)
{
if (va[n] == vb[n])
continue;
return va[n] < vb[n] ? -1 : 1;
}
return 0;
}
int compare_uint64(const MDB_val *a, const MDB_val *b)
{
const uint64_t va = *(const uint64_t *)a->mv_data;
const uint64_t vb = *(const uint64_t *)b->mv_data;
return (va < vb) ? -1 : va > vb;
}
static int compare_double64(const MDB_val *a, const MDB_val *b)
{
const uint64_t va = *(const uint64_t*) a->mv_data;
const uint64_t vb = *(const uint64_t*) b->mv_data;
if (va == vb)
{
const uint64_t va = ((const uint64_t*) a->mv_data)[1];
const uint64_t vb = ((const uint64_t*) b->mv_data)[1];
return va < vb ? -1 : va > vb;
}
return va < vb ? -1 : va > vb;
}
static int resize_env(const char *db_path)
{
MDB_envinfo mei;
MDB_stat mst;
int ret;
size_t needed = 1000ul * 1024 * 1024; // at least 1000 MB
ret = mdb_env_info(env, &mei);
if (ret)
return ret;
ret = mdb_env_stat(env, &mst);
if (ret)
return ret;
uint64_t size_used = mst.ms_psize * mei.me_last_pgno;
uint64_t mapsize = mei.me_mapsize;
if (size_used + needed > mei.me_mapsize)
{
try
{
boost::filesystem::path path(db_path);
boost::filesystem::space_info si = boost::filesystem::space(path);
if(si.available < needed)
{
MERROR("!! WARNING: Insufficient free space to extend database !!: " << (si.available >> 20L) << " MB available");
return ENOSPC;
}
}
catch(...)
{
// print something but proceed.
MWARNING("Unable to query free disk space.");
}
mapsize += needed;
}
return mdb_env_set_mapsize(env, mapsize);
}
static void init(std::string cache_filename)
{
MDB_txn *txn;
bool tx_active = false;
int dbr;
MINFO("Creating blackball cache in " << cache_filename);
tools::create_directories_if_necessary(cache_filename);
int flags = 0;
if (db_flags & DBF_FAST)
flags |= MDB_NOSYNC;
if (db_flags & DBF_FASTEST)
flags |= MDB_NOSYNC | MDB_WRITEMAP | MDB_MAPASYNC;
dbr = mdb_env_create(&env);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LDMB environment: " + std::string(mdb_strerror(dbr)));
dbr = mdb_env_set_maxdbs(env, 6);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to set max env dbs: " + std::string(mdb_strerror(dbr)));
const std::string actual_filename = get_cache_filename(cache_filename);
dbr = mdb_env_open(env, actual_filename.c_str(), flags, 0664);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open rings database file '"
+ actual_filename + "': " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_begin(env, NULL, 0, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
tx_active = true;
dbr = mdb_dbi_open(txn, "relative_rings", MDB_CREATE | MDB_INTEGERKEY, &dbi_relative_rings);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
mdb_set_compare(txn, dbi_relative_rings, compare_hash32);
dbr = mdb_dbi_open(txn, "outputs", MDB_CREATE | MDB_INTEGERKEY, &dbi_outputs);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
mdb_set_compare(txn, dbi_outputs, compare_double64);
dbr = mdb_dbi_open(txn, "processed_txidx", MDB_CREATE, &dbi_processed_txidx);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
dbr = mdb_dbi_open(txn, "spent", MDB_CREATE | MDB_INTEGERKEY | MDB_DUPSORT | MDB_DUPFIXED, &dbi_spent);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
mdb_set_dupsort(txn, dbi_spent, compare_double64);
dbr = mdb_dbi_open(txn, "ring_instances", MDB_CREATE, &dbi_ring_instances);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
dbr = mdb_dbi_open(txn, "stats", MDB_CREATE, &dbi_stats);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_commit(txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to commit txn creating/opening database: " + std::string(mdb_strerror(dbr)));
tx_active = false;
}
static void close()
{
if (env)
{
mdb_dbi_close(env, dbi_relative_rings);
mdb_dbi_close(env, dbi_outputs);
mdb_dbi_close(env, dbi_processed_txidx);
mdb_dbi_close(env, dbi_spent);
mdb_dbi_close(env, dbi_ring_instances);
mdb_dbi_close(env, dbi_stats);
mdb_env_close(env);
env = NULL;
}
}
static std::string compress_ring(const std::vector<uint64_t> &ring, std::string s = "")
{
for (uint64_t out: ring)
s += tools::get_varint_data(out);
return s;
}
static std::string compress_ring(uint64_t amount, const std::vector<uint64_t> &ring)
{
return compress_ring(ring, tools::get_varint_data(amount));
}
static std::vector<uint64_t> decompress_ring(const std::string &s)
{
std::vector<uint64_t> ring;
int read = 0;
for (std::string::const_iterator i = s.begin(); i != s.cend(); std::advance(i, read))
{
uint64_t out;
std::string tmp(i, s.cend());
read = tools::read_varint(tmp.begin(), tmp.end(), out);
CHECK_AND_ASSERT_THROW_MES(read > 0 && read <= 256, "Internal error decompressing ring");
ring.push_back(out);
}
return ring;
}
static bool for_all_transactions(const std::string &filename, uint64_t &start_idx, uint64_t &n_txes, const std::function<bool(const cryptonote::transaction_prefix&)> &f)
{
MDB_env *env;
MDB_dbi dbi;
MDB_txn *txn;
MDB_cursor *cur;
int dbr;
bool tx_active = false;
MDB_val k;
MDB_val v;
dbr = mdb_env_create(&env);
if (dbr) throw std::runtime_error("Failed to create LDMB environment: " + std::string(mdb_strerror(dbr)));
dbr = mdb_env_set_maxdbs(env, 2);
if (dbr) throw std::runtime_error("Failed to set max env dbs: " + std::string(mdb_strerror(dbr)));
const std::string actual_filename = filename;
dbr = mdb_env_open(env, actual_filename.c_str(), 0, 0664);
if (dbr) throw std::runtime_error("Failed to open rings database file '"
+ actual_filename + "': " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (dbr) throw std::runtime_error("Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
tx_active = true;
dbr = mdb_dbi_open(txn, "txs_pruned", MDB_INTEGERKEY, &dbi);
if (dbr)
dbr = mdb_dbi_open(txn, "txs", MDB_INTEGERKEY, &dbi);
if (dbr) throw std::runtime_error("Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
dbr = mdb_cursor_open(txn, dbi, &cur);
if (dbr) throw std::runtime_error("Failed to create LMDB cursor: " + std::string(mdb_strerror(dbr)));
MDB_stat stat;
dbr = mdb_stat(txn, dbi, &stat);
if (dbr) throw std::runtime_error("Failed to query m_block_info: " + std::string(mdb_strerror(dbr)));
n_txes = stat.ms_entries;
bool fret = true;
k.mv_size = sizeof(uint64_t);
k.mv_data = &start_idx;
MDB_cursor_op op = MDB_SET;
while (1)
{
int ret = mdb_cursor_get(cur, &k, &v, op);
op = MDB_NEXT;
if (ret == MDB_NOTFOUND)
break;
if (ret)
throw std::runtime_error("Failed to enumerate transactions: " + std::string(mdb_strerror(ret)));
if (k.mv_size != sizeof(uint64_t))
throw std::runtime_error("Bad key size");
const uint64_t idx = *(uint64_t*)k.mv_data;
if (idx < start_idx)
continue;
cryptonote::transaction_prefix tx;
blobdata bd;
bd.assign(reinterpret_cast<char*>(v.mv_data), v.mv_size);
std::stringstream ss;
ss << bd;
binary_archive<false> ba(ss);
bool r = do_serialize(ba, tx);
CHECK_AND_ASSERT_MES(r, false, "Failed to parse transaction from blob");
start_idx = *(uint64_t*)k.mv_data;
if (!f(tx)) {
fret = false;
break;
}
}
mdb_cursor_close(cur);
mdb_txn_commit(txn);
tx_active = false;
mdb_dbi_close(env, dbi);
mdb_env_close(env);
return fret;
}
static std::vector<uint64_t> canonicalize(const std::vector<uint64_t> &v)
{
std::vector<uint64_t> c;
c.reserve(v.size());
c.push_back(v[0]);
for (size_t n = 1; n < v.size(); ++n)
{
if (v[n] != 0)
c.push_back(v[n]);
}
if (c.size() < v.size())
{
MINFO("Ring has duplicate member(s): " <<
boost::join(v | boost::adaptors::transformed([](uint64_t out){return std::to_string(out);}), " "));
}
return c;
}
static uint64_t get_num_spent_outputs()
{
MDB_txn *txn;
bool tx_active = false;
int dbr = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
tx_active = true;
MDB_cursor *cur;
dbr = mdb_cursor_open(txn, dbi_spent, &cur);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open cursor for spent outputs: " + std::string(mdb_strerror(dbr)));
MDB_val k, v;
mdb_size_t count = 0;
dbr = mdb_cursor_get(cur, &k, &v, MDB_FIRST);
if (dbr != MDB_NOTFOUND)
{
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get first spent output: " + std::string(mdb_strerror(dbr)));
dbr = mdb_cursor_count(cur, &count);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to count entries: " + std::string(mdb_strerror(dbr)));
}
mdb_cursor_close(cur);
dbr = mdb_txn_commit(txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to commit txn: " + std::string(mdb_strerror(dbr)));
tx_active = false;
return count;
}
static void add_spent_output(MDB_txn *txn, const output_data &od)
{
MDB_cursor *cur;
int dbr = mdb_cursor_open(txn, dbi_spent, &cur);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open cursor for spent outputs: " + std::string(mdb_strerror(dbr)));
MDB_val v = {sizeof(od), (void*)&od};
dbr = mdb_cursor_put(cur, (MDB_val *)&zerokval, &v, MDB_NODUPDATA);
CHECK_AND_ASSERT_THROW_MES(!dbr || dbr == MDB_KEYEXIST, "Failed to add spent output: " + std::string(mdb_strerror(dbr)));
mdb_cursor_close(cur);
}
static bool is_output_spent(MDB_txn *txn, const output_data &od)
{
MDB_cursor *cur;
int dbr = mdb_cursor_open(txn, dbi_spent, &cur);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open cursor for spent outputs: " + std::string(mdb_strerror(dbr)));
MDB_val v = {sizeof(od), (void*)&od};
dbr = mdb_cursor_get(cur, (MDB_val *)&zerokval, &v, MDB_GET_BOTH);
CHECK_AND_ASSERT_THROW_MES(!dbr || dbr == MDB_NOTFOUND, "Failed to get spent output: " + std::string(mdb_strerror(dbr)));
bool spent = dbr == 0;
mdb_cursor_close(cur);
return spent;
}
static std::vector<output_data> get_spent_outputs(MDB_txn *txn)
{
MDB_cursor *cur;
int dbr = mdb_cursor_open(txn, dbi_spent, &cur);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open cursor for spent outputs: " + std::string(mdb_strerror(dbr)));
MDB_val k, v;
uint64_t count = 0;
dbr = mdb_cursor_get(cur, &k, &v, MDB_FIRST);
if (dbr != MDB_NOTFOUND)
{
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get first spent output: " + std::string(mdb_strerror(dbr)));
dbr = mdb_cursor_count(cur, &count);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to count entries: " + std::string(mdb_strerror(dbr)));
}
std::vector<output_data> outs;
outs.reserve(count);
while (1)
{
const output_data *od = (const output_data*)v.mv_data;
outs.push_back(*od);
dbr = mdb_cursor_get(cur, &k, &v, MDB_NEXT);
if (dbr == MDB_NOTFOUND)
break;
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get next spent output: " + std::string(mdb_strerror(dbr)));
}
mdb_cursor_close(cur);
return outs;
}
static uint64_t get_processed_txidx(const std::string &name)
{
MDB_txn *txn;
bool tx_active = false;
int dbr = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
tx_active = true;
uint64_t height = 0;
MDB_val k, v;
k.mv_data = (void*)name.c_str();
k.mv_size = name.size();
dbr = mdb_get(txn, dbi_processed_txidx, &k, &v);
if (dbr != MDB_NOTFOUND)
{
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get processed height: " + std::string(mdb_strerror(dbr)));
height = *(const uint64_t*)v.mv_data;
}
dbr = mdb_txn_commit(txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to commit txn: " + std::string(mdb_strerror(dbr)));
tx_active = false;
return height;
}
static void set_processed_txidx(MDB_txn *txn, const std::string &name, uint64_t height)
{
MDB_val k, v;
k.mv_data = (void*)name.c_str();
k.mv_size = name.size();
v.mv_data = (void*)&height;
v.mv_size = sizeof(height);
int dbr = mdb_put(txn, dbi_processed_txidx, &k, &v, 0);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to set processed height: " + std::string(mdb_strerror(dbr)));
}
static bool get_relative_ring(MDB_txn *txn, const crypto::key_image &ki, std::vector<uint64_t> &ring)
{
const std::string sring = compress_ring(ring);
MDB_val k, v;
k.mv_data = (void*)&ki;
k.mv_size = sizeof(ki);
int dbr = mdb_get(txn, dbi_relative_rings, &k, &v);
if (dbr == MDB_NOTFOUND)
return false;
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get relative ring: " + std::string(mdb_strerror(dbr)));
ring = decompress_ring(std::string((const char*)v.mv_data, v.mv_size));
return true;
}
static void set_relative_ring(MDB_txn *txn, const crypto::key_image &ki, const std::vector<uint64_t> &ring)
{
const std::string sring = compress_ring(ring);
MDB_val k, v;
k.mv_data = (void*)&ki;
k.mv_size = sizeof(ki);
v.mv_data = (void*)sring.c_str();
v.mv_size = sring.size();
int dbr = mdb_put(txn, dbi_relative_rings, &k, &v, 0);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to set relative ring: " + std::string(mdb_strerror(dbr)));
}
static std::string keep_under_511(const std::string &s)
{
if (s.size() <= 511)
return s;
crypto::hash hash;
crypto::cn_fast_hash(s.data(), s.size(), hash);
return std::string((const char*)&hash, 32);
}
static uint64_t get_ring_instances(MDB_txn *txn, uint64_t amount, const std::vector<uint64_t> &ring)
{
const std::string sring = keep_under_511(compress_ring(amount, ring));
MDB_val k, v;
k.mv_data = (void*)sring.data();
k.mv_size = sring.size();
int dbr = mdb_get(txn, dbi_ring_instances, &k, &v);
if (dbr == MDB_NOTFOUND)
return 0;
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get ring instances: " + std::string(mdb_strerror(dbr)));
return *(const uint64_t*)v.mv_data;
}
static uint64_t get_ring_subset_instances(MDB_txn *txn, uint64_t amount, const std::vector<uint64_t> &ring)
{
uint64_t instances = get_ring_instances(txn, amount, ring);
if (ring.size() > 11)
return instances;
uint64_t extra = 0;
for (uint64_t mask = 1; mask < (1u << ring.size()) - 1; ++mask)
{
std::vector<uint64_t> subset;
subset.reserve(ring.size());
for (size_t i = 0; i < ring.size(); ++i)
if ((mask >> i) & 1)
subset.push_back(ring[i]);
extra += get_ring_instances(txn, amount, subset);
}
return instances + extra;
}
static void set_ring_instances(MDB_txn *txn, uint64_t amount, const std::vector<uint64_t> &ring, uint64_t count)
{
const std::string sring = keep_under_511(compress_ring(amount, ring));
MDB_val k, v;
k.mv_data = (void*)sring.data();
k.mv_size = sring.size();
v.mv_data = &count;
v.mv_size = sizeof(count);
int dbr = mdb_put(txn, dbi_ring_instances, &k, &v, 0);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get ring instances: " + std::string(mdb_strerror(dbr)));
}
static std::vector<crypto::key_image> get_key_images(MDB_txn *txn, const output_data &od)
{
MDB_val k, v;
k.mv_data = (void*)&od;
k.mv_size = sizeof(od);
int dbr = mdb_get(txn, dbi_outputs, &k, &v);
CHECK_AND_ASSERT_THROW_MES(!dbr || dbr == MDB_NOTFOUND, "Failed to get output: " + std::string(mdb_strerror(dbr)));
if (dbr == MDB_NOTFOUND)
return {};
CHECK_AND_ASSERT_THROW_MES(v.mv_size % 32 == 0, "Unexpected record size");
std::vector<crypto::key_image> key_images;
key_images.reserve(v.mv_size / 32);
const crypto::key_image *ki = (const crypto::key_image*)v.mv_data;
for (size_t n = 0; n < v.mv_size / 32; ++n)
key_images.push_back(*ki++);
return key_images;
}
static void add_key_image(MDB_txn *txn, const output_data &od, const crypto::key_image &ki)
{
MDB_val k, v;
k.mv_data = (void*)&od;
k.mv_size = sizeof(od);
int dbr = mdb_get(txn, dbi_outputs, &k, &v);
CHECK_AND_ASSERT_THROW_MES(!dbr || dbr == MDB_NOTFOUND, "Failed to get output");
std::string data;
if (!dbr)
{
CHECK_AND_ASSERT_THROW_MES(v.mv_size % 32 == 0, "Unexpected record size");
data = std::string((const char*)v.mv_data, v.mv_size);
}
data += std::string((const char*)&ki, sizeof(ki));
v.mv_data = (void*)data.data();
v.mv_size = data.size();
dbr = mdb_put(txn, dbi_outputs, &k, &v, 0);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to set outputs: " + std::string(mdb_strerror(dbr)));
}
static bool get_stat(MDB_txn *txn, const char *key, uint64_t &data)
{
MDB_val k, v;
k.mv_data = (void*)key;
k.mv_size = strlen(key);
int dbr = mdb_get(txn, dbi_stats, &k, &v);
if (dbr == MDB_NOTFOUND)
return false;
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to get stat record");
CHECK_AND_ASSERT_THROW_MES(v.mv_size == sizeof(uint64_t), "Unexpected record size");
data = *(const uint64_t*)v.mv_data;
return true;
}
static void set_stat(MDB_txn *txn, const char *key, uint64_t data)
{
MDB_val k, v;
k.mv_data = (void*)key;
k.mv_size = strlen(key);
v.mv_data = (void*)&data;
v.mv_size = sizeof(uint64_t);
int dbr = mdb_put(txn, dbi_stats, &k, &v, 0);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to set stat record");
}
static void inc_stat(MDB_txn *txn, const char *key)
{
uint64_t data;
if (!get_stat(txn, key, data))
data = 0;
++data;
set_stat(txn, key, data);
}
static void open_db(const std::string &filename, MDB_env **env, MDB_txn **txn, MDB_cursor **cur, MDB_dbi *dbi)
{
tools::create_directories_if_necessary(filename);
int flags = MDB_RDONLY;
if (db_flags & DBF_FAST)
flags |= MDB_NOSYNC;
if (db_flags & DBF_FASTEST)
flags |= MDB_NOSYNC | MDB_WRITEMAP | MDB_MAPASYNC;
int dbr = mdb_env_create(env);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LDMB environment: " + std::string(mdb_strerror(dbr)));
dbr = mdb_env_set_maxdbs(*env, 1);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to set max env dbs: " + std::string(mdb_strerror(dbr)));
const std::string actual_filename = filename;
MINFO("Opening monero blockchain at " << actual_filename);
dbr = mdb_env_open(*env, actual_filename.c_str(), flags, 0664);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open rings database file '"
+ actual_filename + "': " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_begin(*env, NULL, MDB_RDONLY, txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
dbr = mdb_dbi_open(*txn, "output_amounts", MDB_CREATE | MDB_INTEGERKEY | MDB_DUPSORT | MDB_DUPFIXED, dbi);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
mdb_set_dupsort(*txn, *dbi, compare_uint64);
dbr = mdb_cursor_open(*txn, *dbi, cur);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB cursor: " + std::string(mdb_strerror(dbr)));
}
static void close_db(MDB_env *env, MDB_txn *txn, MDB_cursor *cur, MDB_dbi dbi)
{
mdb_txn_abort(txn);
mdb_cursor_close(cur);
mdb_dbi_close(env, dbi);
mdb_env_close(env);
}
static crypto::public_key get_output_key(MDB_cursor *cur, uint64_t amount, uint64_t offset)
{
MDB_val k = { sizeof(amount), (void*)&amount }, v = { sizeof(offset), (void*)&offset };
int dbr = mdb_cursor_get(cur, &k, &v, MDB_GET_BOTH);
if (dbr) throw std::runtime_error("Output key not found: " + std::string(mdb_strerror(dbr)));
return *(const crypto::public_key*)(((const char*)v.mv_data) + sizeof(uint64_t) * 2);
}
static void get_num_outputs(MDB_txn *txn, MDB_cursor *cur, MDB_dbi dbi, uint64_t &pre_rct, uint64_t &rct)
{
uint64_t amount = 0;
MDB_val k = { sizeof(amount), (void*)&amount }, v;
int dbr = mdb_cursor_get(cur, &k, &v, MDB_SET);
if (dbr == MDB_NOTFOUND)
{
rct = 0;
}
else
{
if (dbr) throw std::runtime_error("Record 0 not found: " + std::string(mdb_strerror(dbr)));
mdb_size_t count = 0;
dbr = mdb_cursor_count(cur, &count);
if (dbr) throw std::runtime_error("Failed to count records: " + std::string(mdb_strerror(dbr)));
rct = count;
}
MDB_stat s;
dbr = mdb_stat(txn, dbi, &s);
if (dbr) throw std::runtime_error("Failed to count records: " + std::string(mdb_strerror(dbr)));
if (s.ms_entries < rct) throw std::runtime_error("Inconsistent records: " + std::string(mdb_strerror(dbr)));
pre_rct = s.ms_entries - rct;
}
static crypto::hash get_genesis_block_hash(const std::string &filename)
{
MDB_env *env;
MDB_dbi dbi;
MDB_txn *txn;
int dbr;
bool tx_active = false;
dbr = mdb_env_create(&env);
if (dbr) throw std::runtime_error("Failed to create LDMB environment: " + std::string(mdb_strerror(dbr)));
dbr = mdb_env_set_maxdbs(env, 1);
if (dbr) throw std::runtime_error("Failed to set max env dbs: " + std::string(mdb_strerror(dbr)));
const std::string actual_filename = filename;
dbr = mdb_env_open(env, actual_filename.c_str(), 0, 0664);
if (dbr) throw std::runtime_error("Failed to open rings database file '"
+ actual_filename + "': " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
if (dbr) throw std::runtime_error("Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
epee::misc_utils::auto_scope_leave_caller txn_dtor = epee::misc_utils::create_scope_leave_handler([&](){if (tx_active) mdb_txn_abort(txn);});
tx_active = true;
dbr = mdb_dbi_open(txn, "block_info", MDB_INTEGERKEY | MDB_DUPSORT | MDB_DUPFIXED, &dbi);
mdb_set_dupsort(txn, dbi, compare_uint64);
if (dbr) throw std::runtime_error("Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
uint64_t zero = 0;
MDB_val k = { sizeof(uint64_t), (void*)&zero}, v;
dbr = mdb_get(txn, dbi, &k, &v);
if (dbr) throw std::runtime_error("Failed to retrieve genesis block: " + std::string(mdb_strerror(dbr)));
crypto::hash genesis_block_hash = *(const crypto::hash*)(((const uint64_t*)v.mv_data) + 5);
mdb_dbi_close(env, dbi);
mdb_txn_abort(txn);
mdb_env_close(env);
tx_active = false;
return genesis_block_hash;
}
int main(int argc, char* argv[])
{
TRY_ENTRY();
epee::string_tools::set_module_name_and_folder(argv[0]);
std::string default_db_type = "lmdb";
std::string available_dbs = cryptonote::blockchain_db_types(", ");
available_dbs = "available: " + available_dbs;
uint32_t log_level = 0;
tools::on_startup();
boost::filesystem::path output_file_path;
po::options_description desc_cmd_only("Command line options");
po::options_description desc_cmd_sett("Command line options and settings options");
const command_line::arg_descriptor<std::string> arg_blackball_db_dir = {
"blackball-db-dir", "Specify blackball database directory",
get_default_db_path(),
};
const command_line::arg_descriptor<std::string> arg_log_level = {"log-level", "0-4 or categories", ""};
const command_line::arg_descriptor<std::string> arg_database = {
"database", available_dbs.c_str(), default_db_type
};
const command_line::arg_descriptor<bool> arg_rct_only = {"rct-only", "Only work on ringCT outputs", false};
const command_line::arg_descriptor<bool> arg_check_subsets = {"check-subsets", "Check ring subsets (very expensive)", false};
const command_line::arg_descriptor<std::vector<std::string> > arg_inputs = {"inputs", "Path to Monero DB, and path to any fork DBs"};
const command_line::arg_descriptor<std::string> arg_db_sync_mode = {
"db-sync-mode"
, "Specify sync option, using format [safe|fast|fastest]:[nrecords_per_sync]."
, "fast:1000"
};
command_line::add_arg(desc_cmd_sett, arg_blackball_db_dir);
command_line::add_arg(desc_cmd_sett, arg_log_level);
command_line::add_arg(desc_cmd_sett, arg_database);
command_line::add_arg(desc_cmd_sett, arg_rct_only);
command_line::add_arg(desc_cmd_sett, arg_check_subsets);
command_line::add_arg(desc_cmd_sett, arg_db_sync_mode);
command_line::add_arg(desc_cmd_sett, arg_inputs);
command_line::add_arg(desc_cmd_only, command_line::arg_help);
po::options_description desc_options("Allowed options");
desc_options.add(desc_cmd_only).add(desc_cmd_sett);
po::positional_options_description positional_options;
positional_options.add(arg_inputs.name, -1);
po::variables_map vm;
bool r = command_line::handle_error_helper(desc_options, [&]()
{
auto parser = po::command_line_parser(argc, argv).options(desc_options).positional(positional_options);
po::store(parser.run(), vm);
po::notify(vm);
return true;
});
if (! r)
return 1;
if (command_line::get_arg(vm, command_line::arg_help))
{
std::cout << "Monero '" << MONERO_RELEASE_NAME << "' (v" << MONERO_VERSION_FULL << ")" << ENDL << ENDL;
std::cout << desc_options << std::endl;
return 1;
}
mlog_configure(mlog_get_default_log_path("monero-blockchain-blackball.log"), true);
if (!command_line::is_arg_defaulted(vm, arg_log_level))
mlog_set_log(command_line::get_arg(vm, arg_log_level).c_str());
else
mlog_set_log(std::string(std::to_string(log_level) + ",bcutil:INFO").c_str());
LOG_PRINT_L0("Starting...");
output_file_path = command_line::get_arg(vm, arg_blackball_db_dir);
bool opt_rct_only = command_line::get_arg(vm, arg_rct_only);
bool opt_check_subsets = command_line::get_arg(vm, arg_check_subsets);
std::string db_type = command_line::get_arg(vm, arg_database);
if (!cryptonote::blockchain_valid_db_type(db_type))
{
std::cerr << "Invalid database type: " << db_type << std::endl;
return 1;
}
std::string db_sync_mode = command_line::get_arg(vm, arg_db_sync_mode);
if (!parse_db_sync_mode(db_sync_mode))
{
MERROR("Invalid db sync mode: " << db_sync_mode);
return 1;
}
const std::vector<std::string> inputs = command_line::get_arg(vm, arg_inputs);
if (inputs.empty())
{
LOG_PRINT_L0("No inputs given");
return 1;
}
const std::string cache_dir = (output_file_path / "blackball-cache").string();
init(cache_dir);
LOG_PRINT_L0("Scanning for blackballable outputs...");
size_t done = 0;
const uint64_t start_blackballed_outputs = get_num_spent_outputs();
tools::ringdb ringdb(output_file_path.string(), epee::string_tools::pod_to_hex(get_genesis_block_hash(inputs[0])));
bool stop_requested = false;
tools::signal_handler::install([&stop_requested](int type) {
stop_requested = true;
});
int dbr = resize_env(cache_dir.c_str());
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to resize LMDB database: " + std::string(mdb_strerror(dbr)));
// open first db
MDB_env *env0;
MDB_txn *txn0;
MDB_dbi dbi0;
MDB_cursor *cur0;
open_db(inputs[0], &env0, &txn0, &cur0, &dbi0);
for (size_t n = 0; n < inputs.size(); ++n)
{
const std::string canonical = boost::filesystem::canonical(inputs[n]).string();
uint64_t start_idx = get_processed_txidx(canonical);
LOG_PRINT_L0("Reading blockchain from " << inputs[n] << " from " << start_idx);
MDB_txn *txn;
int dbr = mdb_txn_begin(env, NULL, 0, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
size_t records = 0;
const std::string filename = inputs[n];
std::vector<crypto::public_key> blackballs;
uint64_t n_txes;
for_all_transactions(filename, start_idx, n_txes, [&](const cryptonote::transaction_prefix &tx)->bool
{
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
for (const auto &in: tx.vin)
{
if (in.type() != typeid(txin_to_key))
continue;
const auto &txin = boost::get<txin_to_key>(in);
if (opt_rct_only && txin.amount != 0)
continue;
const std::vector<uint64_t> absolute = cryptonote::relative_output_offsets_to_absolute(txin.key_offsets);
if (n == 0)
for (uint64_t out: absolute)
add_key_image(txn, output_data(txin.amount, out), txin.k_image);
std::vector<uint64_t> relative_ring;
std::vector<uint64_t> new_ring = canonicalize(txin.key_offsets);
const uint32_t ring_size = txin.key_offsets.size();
uint64_t instances = get_ring_instances(txn, txin.amount, new_ring);
++instances;
set_ring_instances(txn, txin.amount, new_ring, instances);
if (n == 0 && ring_size == 1)
{
const crypto::public_key pkey = get_output_key(cur0, txin.amount, absolute[0]);
MINFO("Blackballing output " << pkey << ", due to being used in a 1-ring");
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
blackballs.push_back(pkey);
add_spent_output(txn, output_data(txin.amount, absolute[0]));
inc_stat(txn, txin.amount ? "pre-rct-ring-size-1" : "rct-ring-size-1");
}
else if (n == 0 && instances == new_ring.size())
{
for (size_t o = 0; o < new_ring.size(); ++o)
{
const crypto::public_key pkey = get_output_key(cur0, txin.amount, absolute[o]);
MINFO("Blackballing output " << pkey << ", due to being used in " << new_ring.size() << " identical " << new_ring.size() << "-rings");
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
blackballs.push_back(pkey);
add_spent_output(txn, output_data(txin.amount, absolute[o]));
inc_stat(txn, txin.amount ? "pre-rct-duplicate-rings" : "rct-duplicate-rings");
}
}
else if (n == 0 && opt_check_subsets && get_ring_subset_instances(txn, txin.amount, new_ring) >= new_ring.size())
{
for (size_t o = 0; o < new_ring.size(); ++o)
{
const crypto::public_key pkey = get_output_key(cur0, txin.amount, absolute[o]);
MINFO("Blackballing output " << pkey << ", due to being used in " << new_ring.size() << " subsets of " << new_ring.size() << "-rings");
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
blackballs.push_back(pkey);
add_spent_output(txn, output_data(txin.amount, absolute[o]));
inc_stat(txn, txin.amount ? "pre-rct-subset-rings" : "rct-subset-rings");
}
}
else if (n > 0 && get_relative_ring(txn, txin.k_image, relative_ring))
{
MDEBUG("Key image " << txin.k_image << " already seen: rings " <<
boost::join(relative_ring | boost::adaptors::transformed([](uint64_t out){return std::to_string(out);}), " ") <<
", " << boost::join(txin.key_offsets | boost::adaptors::transformed([](uint64_t out){return std::to_string(out);}), " "));
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
if (relative_ring != txin.key_offsets)
{
MDEBUG("Rings are different");
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
const std::vector<uint64_t> r0 = cryptonote::relative_output_offsets_to_absolute(relative_ring);
const std::vector<uint64_t> r1 = cryptonote::relative_output_offsets_to_absolute(txin.key_offsets);
std::vector<uint64_t> common;
for (uint64_t out: r0)
{
if (std::find(r1.begin(), r1.end(), out) != r1.end())
common.push_back(out);
}
if (common.empty())
{
MERROR("Rings for the same key image are disjoint");
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
}
else if (common.size() == 1)
{
const crypto::public_key pkey = get_output_key(cur0, txin.amount, common[0]);
MINFO("Blackballing output " << pkey << ", due to being used in rings with a single common element");
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
blackballs.push_back(pkey);
add_spent_output(txn, output_data(txin.amount, common[0]));
inc_stat(txn, txin.amount ? "pre-rct-key-image-attack" : "rct-key-image-attack");
}
else
{
MDEBUG("The intersection has more than one element, it's still ok");
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
for (const auto &out: r0)
if (std::find(common.begin(), common.end(), out) != common.end())
new_ring.push_back(out);
new_ring = cryptonote::absolute_output_offsets_to_relative(new_ring);
}
}
}
if (n == 0)
set_relative_ring(txn, txin.k_image, new_ring);
}
if (!blackballs.empty())
{
ringdb.blackball(blackballs);
blackballs.clear();
}
set_processed_txidx(txn, canonical, start_idx+1);
++records;
if (records >= records_per_sync)
{
dbr = mdb_txn_commit(txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to commit txn creating/opening database: " + std::string(mdb_strerror(dbr)));
int dbr = resize_env(cache_dir.c_str());
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to resize LMDB database: " + std::string(mdb_strerror(dbr)));
dbr = mdb_txn_begin(env, NULL, 0, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
records = 0;
}
if (stop_requested)
{
MINFO("Stopping scan, secondary passes will still happen...");
return false;
}
return true;
});
dbr = mdb_txn_commit(txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to commit txn creating/opening database: " + std::string(mdb_strerror(dbr)));
LOG_PRINT_L0("blockchain from " << inputs[n] << " processed till tx idx " << start_idx);
if (stop_requested)
break;
}
std::vector<output_data> work_spent;
if (get_num_spent_outputs() > start_blackballed_outputs)
{
MDB_txn *txn;
dbr = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
work_spent = get_spent_outputs(txn);
mdb_txn_abort(txn);
}
while (!work_spent.empty())
{
LOG_PRINT_L0("Secondary pass on " << work_spent.size() << " spent outputs");
int dbr = resize_env(cache_dir.c_str());
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to resize LMDB database: " + std::string(mdb_strerror(dbr)));
MDB_txn *txn;
dbr = mdb_txn_begin(env, NULL, 0, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
std::vector<crypto::public_key> blackballs;
std::vector<output_data> scan_spent = std::move(work_spent);
work_spent.clear();
for (const output_data &od: scan_spent)
{
std::vector<crypto::key_image> key_images = get_key_images(txn, od);
for (const crypto::key_image &ki: key_images)
{
std::vector<uint64_t> relative_ring;
CHECK_AND_ASSERT_THROW_MES(get_relative_ring(txn, ki, relative_ring), "Relative ring not found");
std::vector<uint64_t> absolute = cryptonote::relative_output_offsets_to_absolute(relative_ring);
size_t known = 0;
uint64_t last_unknown = 0;
for (uint64_t out: absolute)
{
output_data new_od(od.amount, out);
if (is_output_spent(txn, new_od))
++known;
else
last_unknown = out;
}
if (known == absolute.size() - 1 && !is_output_spent(txn, output_data(od.amount, last_unknown)))
{
const crypto::public_key pkey = get_output_key(cur0, od.amount, last_unknown);
MINFO("Blackballing output " << pkey << ", due to being used in a " <<
absolute.size() << "-ring where all other outputs are known to be spent");
blackballs.push_back(pkey);
add_spent_output(txn, output_data(od.amount, last_unknown));
work_spent.push_back(output_data(od.amount, last_unknown));
inc_stat(txn, od.amount ? "pre-rct-chain-reaction" : "rct-chain-reaction");
}
}
}
if (!blackballs.empty())
{
ringdb.blackball(blackballs);
blackballs.clear();
}
dbr = mdb_txn_commit(txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to commit txn creating/opening database: " + std::string(mdb_strerror(dbr)));
}
uint64_t diff = get_num_spent_outputs() - start_blackballed_outputs;
LOG_PRINT_L0(std::to_string(diff) << " new outputs blackballed, " << get_num_spent_outputs() << " total outputs blackballed");
MDB_txn *txn;
dbr = mdb_txn_begin(env, NULL, MDB_RDONLY, &txn);
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to create LMDB transaction: " + std::string(mdb_strerror(dbr)));
uint64_t pre_rct = 0, rct = 0;
get_num_outputs(txn0, cur0, dbi0, pre_rct, rct);
MINFO("Total pre-rct outputs: " << pre_rct);
MINFO("Total rct outputs: " << rct);
static const struct { const char *key; uint64_t base; } stat_keys[] = {
{ "pre-rct-ring-size-1", pre_rct }, { "rct-ring-size-1", rct },
{ "pre-rct-duplicate-rings", pre_rct }, { "rct-duplicate-rings", rct },
{ "pre-rct-subset-rings", pre_rct }, { "rct-subset-rings", rct },
{ "pre-rct-key-image-attack", pre_rct }, { "rct-key-image-attack", rct },
{ "pre-rct-chain-reaction", pre_rct }, { "rct-chain-reaction", rct },
};
for (const auto &key: stat_keys)
{
uint64_t data;
if (!get_stat(txn, key.key, data))
data = 0;
float percent = key.base ? 100.0f * data / key.base : 0.0f;
MINFO(key.key << ": " << data << " (" << percent << "%)");
}
mdb_txn_abort(txn);
LOG_PRINT_L0("Blockchain blackball data exported OK");
close_db(env0, txn0, cur0, dbi0);
close();
return 0;
CATCH_ENTRY("Error", 1);
}
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