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blockchain_blackball: add stats

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release-v0.5.1
moneromooo-monero 6 years ago
parent 846190fd18
commit 4801d6b514
No known key found for this signature in database
GPG Key ID: 686F07454D6CEFC3
1 changed files with 94 additions and 2 deletions
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96
src/blockchain_utilities/blockchain_blackball.cpp
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@ -61,6 +61,7 @@ static MDB_dbi dbi_processed_txidx;
static MDB_dbi dbi_spent;
static MDB_dbi dbi_ring_instances;
static MDB_dbi dbi_newly_spent;
static MDB_dbi dbi_stats;
static MDB_env *env = NULL;
struct output_data
@ -79,6 +80,7 @@ struct output_data
// spent: 128 bits, zerokval
// ring_instances: vector<uint64_t> -> uint64_t
// newly_spent: 128 bits, zerokval
// stats: string -> arbitrary
//
static bool parse_db_sync_mode(std::string db_sync_mode)
@ -238,7 +240,7 @@ static void init(std::string cache_filename)
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);
dbr = mdb_env_set_maxdbs(env, 7);
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);
@ -272,6 +274,9 @@ static void init(std::string cache_filename)
CHECK_AND_ASSERT_THROW_MES(!dbr, "Failed to open LMDB dbi: " + std::string(mdb_strerror(dbr)));
mdb_set_dupsort(txn, dbi_newly_spent, compare_double64);
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;
@ -287,6 +292,7 @@ static void close()
mdb_dbi_close(env, dbi_spent);
mdb_dbi_close(env, dbi_ring_instances);
mdb_dbi_close(env, dbi_newly_spent);
mdb_dbi_close(env, dbi_stats);
mdb_env_close(env);
env = NULL;
}
@ -641,6 +647,40 @@ static void add_key_image(MDB_txn *txn, const output_data &od, const crypto::key
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);
@ -688,6 +728,30 @@ static crypto::public_key get_output_key(MDB_cursor *cur, uint64_t amount, uint6
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;
@ -891,6 +955,7 @@ int main(int argc, char* argv[])
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
blackballs.push_back(pkey);
add_spent_output(txn, output_data(txin.amount, absolute[0]), true);
inc_stat(txn, txin.amount ? "pre-rct-ring-size-1" : "rct-ring-size-1");
}
else if (n == 0 && instances == new_ring.size())
{
@ -901,6 +966,7 @@ int main(int argc, char* argv[])
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
blackballs.push_back(pkey);
add_spent_output(txn, output_data(txin.amount, absolute[o]), true);
inc_stat(txn, txin.amount ? "pre-rct-duplicate-rings" : "rct-duplicate-rings");
}
}
else if (n > 0 && get_relative_ring(txn, txin.k_image, relative_ring))
@ -933,6 +999,7 @@ int main(int argc, char* argv[])
std::cout << "\r" << start_idx << "/" << n_txes << " \r" << std::flush;
blackballs.push_back(pkey);
add_spent_output(txn, output_data(txin.amount, common[0]), true);
inc_stat(txn, txin.amount ? "pre-rct-key-image-attack" : "rct-key-image-attack");
}
else
{
@ -1017,13 +1084,14 @@ int main(int argc, char* argv[])
else
last_unknown = out;
}
if (known == absolute.size() - 1)
if (known == absolute.size() - 1 && !is_output_spent(txn, output_data(od.amount, last_unknown), false) && !is_output_spent(txn, output_data(od.amount, last_unknown), true))
{
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), true);
inc_stat(txn, od.amount ? "pre-rct-chain-reaction" : "rct-chain-reaction");
}
}
}
@ -1038,6 +1106,30 @@ int main(int argc, char* argv[])
uint64_t diff = get_num_spent_outputs(false) - start_blackballed_outputs;
LOG_PRINT_L0(std::to_string(diff) << " new outputs blackballed, " << get_num_spent_outputs(false) << " 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-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();

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