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Merge pull request #4735 from pwojcikdev/vote-duplicate-filter

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Network filter for votes
This commit is contained in:
Piotr Wójcik 2024-09-25 15:31:25 +02:00 • committed by GitHub
commit 4a144c6cf4
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GPG key ID: B5690EEEBB952194
28 changed files with 471 additions and 204 deletions
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18
nano/core_test/active_elections.cpp
View file

@ -649,14 +649,14 @@ TEST (active_elections, dropped_cleanup)
nano::vectorstream stream (block_bytes);
chain[0]->serialize (stream);
}
ASSERT_FALSE (node.network.publish_filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_TRUE (node.network.publish_filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_FALSE (node.network.filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_TRUE (node.network.filter.apply (block_bytes.data (), block_bytes.size ()));
auto election = nano::test::start_election (system, node, hash);
ASSERT_NE (nullptr, election);
// Not yet removed
ASSERT_TRUE (node.network.publish_filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_TRUE (node.network.filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_TRUE (node.vote_router.active (hash));
// Now simulate dropping the election
@ -664,7 +664,7 @@ TEST (active_elections, dropped_cleanup)
node.active.erase (*chain[0]);
// The filter must have been cleared
ASSERT_FALSE (node.network.publish_filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_FALSE (node.network.filter.apply (block_bytes.data (), block_bytes.size ()));
// An election was recently dropped
ASSERT_EQ (1, node.stats.count (nano::stat::type::active_elections_dropped, nano::stat::detail::manual));
@ -673,7 +673,7 @@ TEST (active_elections, dropped_cleanup)
ASSERT_FALSE (node.vote_router.active (hash));
// Repeat test for a confirmed election
ASSERT_TRUE (node.network.publish_filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_TRUE (node.network.filter.apply (block_bytes.data (), block_bytes.size ()));
election = nano::test::start_election (system, node, hash);
ASSERT_NE (nullptr, election);
@ -682,7 +682,7 @@ TEST (active_elections, dropped_cleanup)
node.active.erase (*chain[0]);
// The filter should not have been cleared
ASSERT_TRUE (node.network.publish_filter.apply (block_bytes.data (), block_bytes.size ()));
ASSERT_TRUE (node.network.filter.apply (block_bytes.data (), block_bytes.size ()));
// Not dropped
ASSERT_EQ (1, node.stats.count (nano::stat::type::active_elections_dropped, nano::stat::detail::manual));
@ -825,7 +825,7 @@ TEST (active_elections, fork_filter_cleanup)
ASSERT_TIMELY_EQ (5s, node1.ledger.block_count (), 2);
// Block is erased from the duplicate filter
ASSERT_TIMELY (5s, node1.network.publish_filter.apply (send_block_bytes.data (), send_block_bytes.size ()));
ASSERT_TIMELY (5s, node1.network.filter.apply (send_block_bytes.data (), send_block_bytes.size ()));
}
/*
@ -960,7 +960,7 @@ TEST (active_elections, fork_replacement_tally)
// Process correct block
node_config.peering_port = system.get_available_port ();
auto & node2 (*system.add_node (node_config));
node1.network.publish_filter.clear ();
node1.network.filter.clear ();
node2.network.flood_block (send_last);
ASSERT_TIMELY (3s, node1.stats.count (nano::stat::type::message, nano::stat::detail::publish, nano::stat::dir::in) > 0);
@ -974,7 +974,7 @@ TEST (active_elections, fork_replacement_tally)
node1.vote_processor.vote (vote, std::make_shared<nano::transport::inproc::channel> (node1, node1));
// ensure vote arrives before the block
ASSERT_TIMELY_EQ (5s, 1, node1.vote_cache.find (send_last->hash ()).size ());
node1.network.publish_filter.clear ();
node1.network.filter.clear ();
node2.network.flood_block (send_last);
ASSERT_TIMELY (5s, node1.stats.count (nano::stat::type::message, nano::stat::detail::publish, nano::stat::dir::in) > 1);

118
nano/core_test/network.cpp
View file

@ -686,6 +686,21 @@ TEST (network, peer_max_tcp_attempts_subnetwork)
ASSERT_EQ (1, node->stats.count (nano::stat::type::tcp, nano::stat::detail::max_per_subnetwork, nano::stat::dir::out));
}
namespace
{
// Skip the first 8 bytes of the message header, which is the common header for all messages
std::vector<uint8_t> message_payload_to_bytes (nano::message const & message)
{
std::vector<uint8_t> bytes;
{
nano::vectorstream stream (bytes);
message.serialize (stream);
}
debug_assert (bytes.size () > nano::message_header::size);
return std::vector<uint8_t> (bytes.begin () + nano::message_header::size, bytes.end ());
}
}
// Send two publish messages and asserts that the duplication is detected.
TEST (network, duplicate_detection)
{
@ -700,9 +715,10 @@ TEST (network, duplicate_detection)
// Publish duplicate detection through TCP
auto tcp_channel = node0.network.tcp_channels.find_node_id (node1.get_node_id ());
ASSERT_NE (nullptr, tcp_channel);
ASSERT_EQ (0, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_publish_message));
tcp_channel->send (publish);
ASSERT_TIMELY_EQ (2s, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_publish_message), 0);
ASSERT_ALWAYS_EQ (100ms, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_publish_message), 0);
tcp_channel->send (publish);
ASSERT_TIMELY_EQ (2s, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_publish_message), 1);
}
@ -714,17 +730,13 @@ TEST (network, duplicate_revert_publish)
node_config.block_processor.max_peer_queue = 0;
auto & node (*system.add_node (node_config));
nano::publish publish{ nano::dev::network_params.network, nano::dev::genesis };
std::vector<uint8_t> bytes;
{
nano::vectorstream stream (bytes);
publish.block->serialize (stream);
}
std::vector<uint8_t> bytes = message_payload_to_bytes (publish);
// Add to the blocks filter
// Should be cleared when dropping due to a full block processor, as long as the message has the optional digest attached
// Test network.duplicate_detection ensures that the digest is attached when deserializing messages
nano::uint128_t digest;
ASSERT_FALSE (node.network.publish_filter.apply (bytes.data (), bytes.size (), &digest));
ASSERT_TRUE (node.network.publish_filter.apply (bytes.data (), bytes.size ()));
ASSERT_FALSE (node.network.filter.apply (bytes.data (), bytes.size (), &digest));
ASSERT_TRUE (node.network.filter.apply (bytes.data (), bytes.size ()));
auto other_node (std::make_shared<nano::node> (system.io_ctx, system.get_available_port (), nano::unique_path (), system.work));
other_node->start ();
system.nodes.push_back (other_node);
@ -732,10 +744,96 @@ TEST (network, duplicate_revert_publish)
ASSERT_NE (nullptr, channel);
ASSERT_EQ (0, publish.digest);
node.network.inbound (publish, channel);
ASSERT_TRUE (node.network.publish_filter.apply (bytes.data (), bytes.size ()));
ASSERT_TRUE (node.network.filter.apply (bytes.data (), bytes.size ()));
publish.digest = digest;
node.network.inbound (publish, channel);
ASSERT_FALSE (node.network.publish_filter.apply (bytes.data (), bytes.size ()));
ASSERT_FALSE (node.network.filter.apply (bytes.data (), bytes.size ()));
}
TEST (network, duplicate_vote_detection)
{
nano::test::system system;
auto & node0 = *system.add_node ();
auto & node1 = *system.add_node ();
auto vote = nano::test::make_vote (nano::dev::genesis_key, { nano::dev::genesis->hash () });
nano::confirm_ack message{ nano::dev::network_params.network, vote };
ASSERT_EQ (0, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message));
// Publish duplicate detection through TCP
auto tcp_channel = node0.network.tcp_channels.find_node_id (node1.get_node_id ());
ASSERT_NE (nullptr, tcp_channel);
ASSERT_EQ (0, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message));
tcp_channel->send (message);
ASSERT_ALWAYS_EQ (100ms, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message), 0);
tcp_channel->send (message);
ASSERT_TIMELY_EQ (2s, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message), 1);
}
// Ensures that the filter doesn't filter out votes that could not be queued for processing
TEST (network, duplicate_revert_vote)
{
nano::test::system system;
nano::node_config node_config = system.default_config ();
node_config.vote_processor.enable = false; // Do not drain queued votes
node_config.vote_processor.max_non_pr_queue = 1;
node_config.vote_processor.max_pr_queue = 1;
auto & node0 = *system.add_node (node_config);
auto & node1 = *system.add_node (node_config);
auto vote1 = nano::test::make_vote (nano::dev::genesis_key, { nano::dev::genesis->hash () }, 1);
nano::confirm_ack message1{ nano::dev::network_params.network, vote1 };
auto bytes1 = message_payload_to_bytes (message1);
auto vote2 = nano::test::make_vote (nano::dev::genesis_key, { nano::dev::genesis->hash () }, 2);
nano::confirm_ack message2{ nano::dev::network_params.network, vote2 };
auto bytes2 = message_payload_to_bytes (message2);
// Publish duplicate detection through TCP
auto tcp_channel = node0.network.tcp_channels.find_node_id (node1.get_node_id ());
ASSERT_NE (nullptr, tcp_channel);
// First vote should be processed
tcp_channel->send (message1);
ASSERT_ALWAYS_EQ (100ms, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message), 0);
ASSERT_TIMELY (5s, node1.network.filter.check (bytes1.data (), bytes1.size ()));
// Second vote should get dropped from processor queue
tcp_channel->send (message2);
ASSERT_ALWAYS_EQ (100ms, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message), 0);
// And the filter should not have it
WAIT (500ms); // Give the node time to process the vote
ASSERT_TIMELY (5s, !node1.network.filter.check (bytes2.data (), bytes2.size ()));
}
TEST (network, expire_duplicate_filter)
{
nano::test::system system;
nano::node_config node_config = system.default_config ();
node_config.network.duplicate_filter_cutoff = 3; // Expire after 3 seconds
auto & node0 = *system.add_node (node_config);
auto & node1 = *system.add_node (node_config);
auto vote = nano::test::make_vote (nano::dev::genesis_key, { nano::dev::genesis->hash () });
nano::confirm_ack message{ nano::dev::network_params.network, vote };
auto bytes = message_payload_to_bytes (message);
// Publish duplicate detection through TCP
auto tcp_channel = node0.network.tcp_channels.find_node_id (node1.get_node_id ());
ASSERT_NE (nullptr, tcp_channel);
// Send a vote
ASSERT_EQ (0, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message));
tcp_channel->send (message);
ASSERT_ALWAYS_EQ (100ms, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message), 0);
tcp_channel->send (message);
ASSERT_TIMELY_EQ (2s, node1.stats.count (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message), 1);
// The filter should expire the vote after some time
ASSERT_TRUE (node1.network.filter.check (bytes.data (), bytes.size ()));
ASSERT_TIMELY (10s, !node1.network.filter.check (bytes.data (), bytes.size ()));
}
// The test must be completed in less than 1 second

39
nano/core_test/network_filter.cpp
View file

@ -1,12 +1,24 @@
#include <nano/lib/blocks.hpp>
#include <nano/lib/network_filter.hpp>
#include <nano/lib/stream.hpp>
#include <nano/node/common.hpp>
#include <nano/secure/common.hpp>
#include <nano/secure/network_filter.hpp>
#include <nano/test_common/testutil.hpp>
#include <gtest/gtest.h>
TEST (network_filter, apply)
{
nano::network_filter filter (4);
ASSERT_FALSE (filter.check (34));
ASSERT_FALSE (filter.apply (34));
ASSERT_TRUE (filter.check (34));
ASSERT_TRUE (filter.apply (34));
filter.clear (nano::network_filter::digest_t{ 34 });
ASSERT_FALSE (filter.check (34));
ASSERT_FALSE (filter.apply (34));
}
TEST (network_filter, unit)
{
nano::network_filter filter (1);
@ -92,6 +104,7 @@ TEST (network_filter, many)
// Now filter the rest of the stream
// All blocks should pass through
ASSERT_FALSE (filter.apply (bytes->data (), block->size));
ASSERT_TRUE (filter.check (bytes->data (), block->size));
ASSERT_FALSE (error);
// Make sure the stream was rewinded correctly
@ -127,3 +140,27 @@ TEST (network_filter, optional_digest)
filter.clear (digest);
ASSERT_FALSE (filter.apply (bytes1.data (), bytes1.size ()));
}
TEST (network_filter, expire)
{
// Expire entries older than 2 epochs
nano::network_filter filter{ 4, 2 };
ASSERT_FALSE (filter.apply (1)); // Entry with epoch 0
filter.update (); // Bump epoch to 1
ASSERT_FALSE (filter.apply (2)); // Entry with epoch 1
// Both values should be detected as present
ASSERT_TRUE (filter.check (1));
ASSERT_TRUE (filter.check (2));
filter.update (2); // Bump epoch to 3
ASSERT_FALSE (filter.check (1)); // Entry with epoch 0 should be expired
ASSERT_TRUE (filter.check (2)); // Entry with epoch 1 should still be present
filter.update (); // Bump epoch to 4
ASSERT_FALSE (filter.check (2)); // Entry with epoch 1 should be expired
ASSERT_FALSE (filter.apply (2)); // Entry with epoch 1 should be replaced
}

2
nano/core_test/node.cpp
View file

@ -2220,7 +2220,7 @@ TEST (node, vote_by_hash_republish)
ASSERT_TIMELY (5s, node2.active.active (*send1));
// give block send2 to node1 and wait until the block is received and processed by node1
node1.network.publish_filter.clear ();
node1.network.filter.clear ();
node1.process_active (send2);
ASSERT_TIMELY (5s, node1.active.active (*send2));

2
nano/fuzzer_test/fuzz_buffer.cpp
View file

@ -68,7 +68,7 @@ void fuzz_message_parser (uint8_t const * Data, size_t Size)
}
fuzz_visitor visitor;
nano::message_parser parser (node0->network.publish_filter, node0->block_uniquer, node0->vote_uniquer, visitor, node0->work);
nano::message_parser parser (node0->network.filter, node0->block_uniquer, node0->vote_uniquer, visitor, node0->work);
parser.deserialize_buffer (Data, Size);
}

2
nano/lib/CMakeLists.txt
View file

@ -63,6 +63,8 @@ add_library(
logging_enums.cpp
memory.hpp
memory.cpp
network_filter.hpp
network_filter.cpp
numbers.hpp
numbers.cpp
object_stream.hpp

143
nano/lib/network_filter.cpp Normal file
View file

@ -0,0 +1,143 @@
#include <nano/crypto_lib/random_pool.hpp>
#include <nano/lib/blocks.hpp>
#include <nano/lib/locks.hpp>
#include <nano/lib/network_filter.hpp>
#include <nano/lib/stream.hpp>
#include <nano/secure/common.hpp>
nano::network_filter::network_filter (size_t size_a, epoch_t age_cutoff_a) :
items (size_a, { 0 }),
age_cutoff{ age_cutoff_a }
{
nano::random_pool::generate_block (key, key.size ());
}
void nano::network_filter::update (epoch_t epoch_inc)
{
debug_assert (epoch_inc > 0);
nano::lock_guard<nano::mutex> lock{ mutex };
current_epoch += epoch_inc;
}
bool nano::network_filter::compare (entry const & existing, digest_t const & digest) const
{
debug_assert (!mutex.try_lock ());
// Only consider digests to be the same if the epoch is within the age cutoff
return existing.digest == digest && existing.epoch + age_cutoff >= current_epoch;
}
bool nano::network_filter::apply (uint8_t const * bytes_a, size_t count_a, nano::uint128_t * digest_out)
{
// Get hash before locking
auto digest = hash (bytes_a, count_a);
if (digest_out)
{
*digest_out = digest;
}
return apply (digest);
}
bool nano::network_filter::apply (digest_t const & digest)
{
nano::lock_guard<nano::mutex> lock{ mutex };
auto & element = get_element (digest);
bool existed = compare (element, digest);
if (!existed)
{
// Replace likely old element with a new one
element = { digest, current_epoch };
}
return existed;
}
bool nano::network_filter::check (uint8_t const * bytes, size_t count) const
{
return check (hash (bytes, count));
}
bool nano::network_filter::check (digest_t const & digest) const
{
nano::lock_guard<nano::mutex> lock{ mutex };
auto & element = get_element (digest);
return compare (element, digest);
}
void nano::network_filter::clear (digest_t const & digest)
{
nano::lock_guard<nano::mutex> lock{ mutex };
auto & element = get_element (digest);
if (compare (element, digest))
{
element = { 0 };
}
}
void nano::network_filter::clear (std::vector<digest_t> const & digests)
{
nano::lock_guard<nano::mutex> lock{ mutex };
for (auto const & digest : digests)
{
auto & element = get_element (digest);
if (compare (element, digest))
{
element = { 0 };
}
}
}
void nano::network_filter::clear (uint8_t const * bytes_a, size_t count_a)
{
clear (hash (bytes_a, count_a));
}
template <typename OBJECT>
void nano::network_filter::clear (OBJECT const & object_a)
{
clear (hash (object_a));
}
void nano::network_filter::clear ()
{
nano::lock_guard<nano::mutex> lock{ mutex };
items.assign (items.size (), { 0 });
}
template <typename OBJECT>
nano::uint128_t nano::network_filter::hash (OBJECT const & object_a) const
{
std::vector<uint8_t> bytes;
{
nano::vectorstream stream (bytes);
object_a->serialize (stream);
}
return hash (bytes.data (), bytes.size ());
}
auto nano::network_filter::get_element (nano::uint128_t const & hash_a) -> entry &
{
debug_assert (!mutex.try_lock ());
debug_assert (items.size () > 0);
size_t index (hash_a % items.size ());
return items[index];
}
auto nano::network_filter::get_element (nano::uint128_t const & hash_a) const -> entry const &
{
debug_assert (!mutex.try_lock ());
debug_assert (items.size () > 0);
size_t index (hash_a % items.size ());
return items[index];
}
nano::uint128_t nano::network_filter::hash (uint8_t const * bytes_a, size_t count_a) const
{
nano::uint128_union digest{ 0 };
siphash_t siphash (key, static_cast<unsigned int> (key.size ()));
siphash.CalculateDigest (digest.bytes.data (), bytes_a, count_a);
return digest.number ();
}
// Explicitly instantiate
template nano::uint128_t nano::network_filter::hash (std::shared_ptr<nano::block> const &) const;
template void nano::network_filter::clear (std::shared_ptr<nano::block> const &);

69
nano/secure/network_filter.hpp → nano/lib/network_filter.hpp
View file

@ -17,39 +17,56 @@ namespace nano
class network_filter final
{
public:
network_filter () = delete;
network_filter (size_t size_a);
using digest_t = nano::uint128_t;
using epoch_t = uint64_t;
public:
explicit network_filter (size_t size, epoch_t age_cutoff = 0);
/**
* Updates the filter to the next epoch.
* Should be called periodically to time out old entries.
*/
void update (epoch_t epoch_inc = 1);
/**
* Reads \p count_a bytes starting from \p bytes_a and inserts the siphash digest in the filter.
* @param \p digest_a if given, will be set to the resulting siphash digest
* @warning will read out of bounds if [ \p bytes_a, \p bytes_a + \p count_a ] is not a valid range
* @return a boolean representing the previous existence of the hash in the filter.
**/
bool apply (uint8_t const * bytes_a, size_t count_a, nano::uint128_t * digest_a = nullptr);
bool apply (uint8_t const * bytes, size_t count, digest_t * digest_out = nullptr);
bool apply (digest_t const & digest);
/**
* Checks if the digest is in the filter.
* @return a boolean representing the existence of the hash in the filter.
*/
bool check (uint8_t const * bytes, size_t count) const;
bool check (digest_t const & digest) const;
/**
* Sets the corresponding element in the filter to zero, if it matches \p digest_a exactly.
**/
void clear (nano::uint128_t const & digest_a);
void clear (digest_t const & digest);
/**
* Clear many digests from the filter
**/
void clear (std::vector<nano::uint128_t> const &);
void clear (std::vector<digest_t> const &);
/**
* Reads \p count_a bytes starting from \p bytes_a and digests the contents.
* Then, sets the corresponding element in the filter to zero, if it matches the digest exactly.
* @warning will read out of bounds if [ \p bytes_a, \p bytes_a + \p count_a ] is not a valid range
**/
void clear (uint8_t const * bytes_a, size_t count_a);
void clear (uint8_t const * bytes, size_t count);
/**
* Serializes \p object_a and clears the resulting siphash digest from the filter.
* @return a boolean representing the previous existence of the hash in the filter.
**/
template <typename OBJECT>
void clear (OBJECT const & object_a);
void clear (OBJECT const & object);
/** Sets every element of the filter to zero, keeping its size and capacity. */
void clear ();
@ -58,26 +75,40 @@ public:
* Serializes \p object_a and returns the resulting siphash digest
*/
template <typename OBJECT>
nano::uint128_t hash (OBJECT const & object_a) const;
digest_t hash (OBJECT const & object) const;
/**
* Hashes \p count_a bytes starting from \p bytes_a .
* @return the siphash digest of the contents in \p bytes_a .
**/
digest_t hash (uint8_t const * bytes, size_t count) const;
private:
epoch_t const age_cutoff;
epoch_t current_epoch{ 0 };
using siphash_t = CryptoPP::SipHash<2, 4, true>;
CryptoPP::SecByteBlock key{ siphash_t::KEYLENGTH };
mutable nano::mutex mutex{ mutex_identifier (mutexes::network_filter) };
private:
struct entry
{
digest_t digest;
epoch_t epoch;
};
std::vector<entry> items;
/**
* Get element from digest.
* @note must have a lock on mutex
* @return a reference to the element with key \p hash_a
**/
nano::uint128_t & get_element (nano::uint128_t const & hash_a);
entry & get_element (digest_t const & hash);
entry const & get_element (digest_t const & hash) const;
/**
* Hashes \p count_a bytes starting from \p bytes_a .
* @return the siphash digest of the contents in \p bytes_a .
**/
nano::uint128_t hash (uint8_t const * bytes_a, size_t count_a) const;
std::vector<nano::uint128_t> items;
CryptoPP::SecByteBlock key{ siphash_t::KEYLENGTH };
nano::mutex mutex{ mutex_identifier (mutexes::network_filter) };
bool compare (entry const & existing, digest_t const & digest) const;
};
}

4
nano/lib/stats_enums.hpp
View file

@ -201,6 +201,9 @@ enum class detail
asc_pull_req,
asc_pull_ack,
// dropped messages
confirm_ack_zero_account,
// bootstrap, callback
initiate,
initiate_legacy_age,
@ -354,6 +357,7 @@ enum class detail
// duplicate
duplicate_publish_message,
duplicate_confirm_ack_message,
// telemetry
invalid_signature,

2
nano/node/active_elections.cpp
View file

@ -363,7 +363,7 @@ void nano::active_elections::cleanup_election (nano::unique_lock<nano::mutex> &
if (!election->confirmed ())
{
// Clear from publish filter
node.network.publish_filter.clear (block);
node.network.filter.clear (block);
}
}
}

2
nano/node/common.hpp
View file

@ -3,8 +3,8 @@
#include <nano/boost/asio/ip/tcp.hpp>
#include <nano/lib/jsonconfig.hpp>
#include <nano/lib/memory.hpp>
#include <nano/lib/network_filter.hpp>
#include <nano/secure/common.hpp>
#include <nano/secure/network_filter.hpp>
#include <bitset>
#include <optional>

4
nano/node/election.cpp
View file

@ -518,7 +518,7 @@ bool nano::election::publish (std::shared_ptr<nano::block> const & block_a)
if (!replace_by_weight (lock, block_a->hash ()))
{
result = true;
node.network.publish_filter.clear (block_a);
node.network.filter.clear (block_a);
}
debug_assert (lock.owns_lock ());
}
@ -643,7 +643,7 @@ void nano::election::remove_block (nano::block_hash const & hash_a)
return entry.second.hash == hash_a;
});
node.network.publish_filter.clear (existing->second);
node.network.filter.clear (existing->second);
last_blocks.erase (hash_a);
}
}

15
nano/node/message_processor.cpp
View file

@ -190,7 +190,7 @@ public:
bool added = node.block_processor.add (message.block, message.is_originator () ? nano::block_source::live_originator : nano::block_source::live, channel);
if (!added)
{
node.network.publish_filter.clear (message.digest);
node.network.filter.clear (message.digest);
node.stats.inc (nano::stat::type::drop, nano::stat::detail::publish, nano::stat::dir::in);
}
}
@ -210,9 +210,18 @@ public:
void confirm_ack (nano::confirm_ack const & message) override
{
if (!message.vote->account.is_zero ())
// Ignore zero account votes
if (message.vote->account.is_zero ())
{
node.vote_processor.vote (message.vote, channel, message.is_rebroadcasted () ? nano::vote_source::rebroadcast : nano::vote_source::live);
node.stats.inc (nano::stat::type::drop, nano::stat::detail::confirm_ack_zero_account, nano::stat::dir::in);
return;
}
bool added = node.vote_processor.vote (message.vote, channel, message.is_rebroadcasted () ? nano::vote_source::rebroadcast : nano::vote_source::live);
if (!added)
{
node.network.filter.clear (message.digest);
node.stats.inc (nano::stat::type::drop, nano::stat::detail::confirm_ack, nano::stat::dir::in);
}
}

13
nano/node/messages.cpp
View file

@ -423,9 +423,9 @@ void nano::keepalive::operator() (nano::object_stream & obs) const
* publish
*/
nano::publish::publish (bool & error_a, nano::stream & stream_a, nano::message_header const & header_a, nano::uint128_t const & digest_a, nano::block_uniquer * uniquer_a) :
nano::publish::publish (bool & error_a, nano::stream & stream_a, nano::message_header const & header_a, nano::network_filter::digest_t const & digest_a, nano::block_uniquer * uniquer_a) :
message (header_a),
digest (digest_a)
digest{ digest_a }
{
if (!error_a)
{
@ -435,7 +435,7 @@ nano::publish::publish (bool & error_a, nano::stream & stream_a, nano::message_h
nano::publish::publish (nano::network_constants const & constants, std::shared_ptr<nano::block> const & block_a, bool is_originator_a) :
message (constants, nano::message_type::publish),
block (block_a)
block{ block_a }
{
header.block_type_set (block->type ());
header.flag_set (originator_flag, is_originator_a);
@ -613,9 +613,10 @@ void nano::confirm_req::operator() (nano::object_stream & obs) const
* confirm_ack
*/
nano::confirm_ack::confirm_ack (bool & error_a, nano::stream & stream_a, nano::message_header const & header_a, nano::vote_uniquer * uniquer_a) :
nano::confirm_ack::confirm_ack (bool & error_a, nano::stream & stream_a, nano::message_header const & header_a, nano::network_filter::digest_t const & digest_a, nano::vote_uniquer * uniquer_a) :
message (header_a),
vote (nano::make_shared<nano::vote> (error_a, stream_a))
vote{ nano::make_shared<nano::vote> (error_a, stream_a) },
digest{ digest_a }
{
if (!error_a && uniquer_a)
{
@ -625,7 +626,7 @@ nano::confirm_ack::confirm_ack (bool & error_a, nano::stream & stream_a, nano::m
nano::confirm_ack::confirm_ack (nano::network_constants const & constants, std::shared_ptr<nano::vote> const & vote_a, bool rebroadcasted_a) :
message (constants, nano::message_type::confirm_ack),
vote (vote_a)
vote{ vote_a }
{
debug_assert (vote->hashes.size () < 256);

12
nano/node/messages.hpp
View file

@ -7,6 +7,7 @@
#include <nano/lib/jsonconfig.hpp>
#include <nano/lib/logging.hpp>
#include <nano/lib/memory.hpp>
#include <nano/lib/network_filter.hpp>
#include <nano/lib/numbers.hpp>
#include <nano/lib/object_stream.hpp>
#include <nano/lib/stats_enums.hpp>
@ -188,7 +189,7 @@ public: // Logging
class publish final : public message
{
public:
publish (bool &, nano::stream &, nano::message_header const &, nano::uint128_t const & = 0, nano::block_uniquer * = nullptr);
publish (bool &, nano::stream &, nano::message_header const &, nano::network_filter::digest_t const & digest = 0, nano::block_uniquer * = nullptr);
publish (nano::network_constants const & constants, std::shared_ptr<nano::block> const &, bool is_originator = false);
void serialize (nano::stream &) const override;
@ -201,7 +202,9 @@ public:
public: // Payload
std::shared_ptr<nano::block> block;
nano::uint128_t digest{ 0 };
// Messages deserialized from network should have their digest set
nano::network_filter::digest_t digest{ 0 };
public: // Logging
void operator() (nano::object_stream &) const override;
@ -264,7 +267,7 @@ public: // Logging
class confirm_ack final : public message
{
public:
confirm_ack (bool & error, nano::stream &, nano::message_header const &, nano::vote_uniquer * = nullptr);
confirm_ack (bool & error, nano::stream &, nano::message_header const &, nano::network_filter::digest_t const & digest = 0, nano::vote_uniquer * = nullptr);
confirm_ack (nano::network_constants const & constants, std::shared_ptr<nano::vote> const &, bool rebroadcasted = false);
void serialize (nano::stream &) const override;
@ -282,6 +285,9 @@ private:
public: // Payload
std::shared_ptr<nano::vote> vote;
// Messages deserialized from network should have their digest set
nano::network_filter::digest_t digest{ 0 };
public: // Logging
void operator() (nano::object_stream &) const override;
};

8
nano/node/network.cpp
View file

@ -25,7 +25,7 @@ nano::network::network (nano::node & node, uint16_t port) :
id{ nano::network_constants::active_network },
syn_cookies{ node.config.network.max_peers_per_ip, node.logger },
resolver{ node.io_ctx },
publish_filter{ 256 * 1024 },
filter{ node.config.network.duplicate_filter_size, node.config.network.duplicate_filter_cutoff },
tcp_channels{ node },
port{ port }
{
@ -97,7 +97,9 @@ void nano::network::run_cleanup ()
nano::unique_lock<nano::mutex> lock{ mutex };
while (!stopped)
{
condition.wait_for (lock, node.network_params.network.is_dev_network () ? 1s : 5s);
std::chrono::seconds const interval = node.network_params.network.is_dev_network () ? 1s : 5s;
condition.wait_for (lock, interval);
if (stopped)
{
return;
@ -115,6 +117,8 @@ void nano::network::run_cleanup ()
auto const syn_cookie_cutoff = std::chrono::steady_clock::now () - node.network_params.network.syn_cookie_cutoff;
syn_cookies.purge (syn_cookie_cutoff);
filter.update (interval.count ());
lock.lock ();
}
}

7
nano/node/network.hpp
View file

@ -1,13 +1,13 @@
#pragma once
#include <nano/lib/logging.hpp>
#include <nano/lib/network_filter.hpp>
#include <nano/node/common.hpp>
#include <nano/node/messages.hpp>
#include <nano/node/peer_exclusion.hpp>
#include <nano/node/transport/common.hpp>
#include <nano/node/transport/fwd.hpp>
#include <nano/node/transport/tcp_channels.hpp>
#include <nano/secure/network_filter.hpp>
#include <deque>
#include <memory>
@ -77,6 +77,9 @@ public:
size_t max_peers_per_ip{ 4 };
/** Maximum number of peers per subnetwork */
size_t max_peers_per_subnetwork{ 16 };
size_t duplicate_filter_size{ 1024 * 1024 };
uint64_t duplicate_filter_cutoff{ 60 };
};
class network final
@ -148,7 +151,7 @@ public:
nano::syn_cookies syn_cookies;
boost::asio::ip::tcp::resolver resolver;
nano::peer_exclusion excluded_peers;
nano::network_filter publish_filter;
nano::network_filter filter;
nano::transport::tcp_channels tcp_channels;
std::atomic<uint16_t> port{ 0 };

7
nano/node/node.cpp
View file

@ -170,13 +170,6 @@ nano::node::node (std::shared_ptr<boost::asio::io_context> io_ctx_a, std::filesy
return ledger.weight (rep);
};
vote_router.vote_processed.add ([this] (std::shared_ptr<nano::vote> const & vote, nano::vote_source source, std::unordered_map<nano::block_hash, nano::vote_code> const & results) {
if (source != nano::vote_source::cache)
{
vote_cache.insert (vote, results);
}
});
// Republish vote if it is new and the node does not host a principal representative (or close to)
vote_router.vote_processed.add ([this] (std::shared_ptr<nano::vote> const & vote, nano::vote_source source, std::unordered_map<nano::block_hash, nano::vote_code> const & results) {
bool processed = std::any_of (results.begin (), results.end (), [] (auto const & result) {

2
nano/node/transport/inproc.cpp
View file

@ -30,7 +30,7 @@ void nano::transport::inproc::channel::send_buffer (nano::shared_const_buffer co
callback_a (boost::system::errc::make_error_code (boost::system::errc::success), size_a);
};
auto const message_deserializer = std::make_shared<nano::transport::message_deserializer> (node.network_params.network, node.network.publish_filter, node.block_uniquer, node.vote_uniquer, buffer_read_fn);
auto const message_deserializer = std::make_shared<nano::transport::message_deserializer> (node.network_params.network, node.network.filter, node.block_uniquer, node.vote_uniquer, buffer_read_fn);
message_deserializer->read (
[this] (boost::system::error_code ec_a, std::unique_ptr<nano::message> message_a) {
if (ec_a || !message_a)

26
nano/node/transport/message_deserializer.cpp
View file

@ -2,11 +2,11 @@
#include <nano/node/node.hpp>
#include <nano/node/transport/message_deserializer.hpp>
nano::transport::message_deserializer::message_deserializer (nano::network_constants const & network_constants_a, nano::network_filter & publish_filter_a, nano::block_uniquer & block_uniquer_a, nano::vote_uniquer & vote_uniquer_a,
nano::transport::message_deserializer::message_deserializer (nano::network_constants const & network_constants_a, nano::network_filter & network_filter_a, nano::block_uniquer & block_uniquer_a, nano::vote_uniquer & vote_uniquer_a,
read_query read_op) :
read_buffer{ std::make_shared<std::vector<uint8_t>> () },
network_constants_m{ network_constants_a },
publish_filter_m{ publish_filter_a },
network_filter_m{ network_filter_a },
block_uniquer_m{ block_uniquer_a },
vote_uniquer_m{ vote_uniquer_a },
read_op{ std::move (read_op) }
@ -128,9 +128,9 @@ std::unique_ptr<nano::message> nano::transport::message_deserializer::deserializ
}
case nano::message_type::publish:
{
// Early filtering to not waste time deserializing duplicate blocks
// Early filtering to not waste time deserializing duplicates
nano::uint128_t digest;
if (!publish_filter_m.apply (read_buffer->data (), payload_size, &digest))
if (!network_filter_m.apply (read_buffer->data (), payload_size, &digest))
{
return deserialize_publish (stream, header, digest);
}
@ -146,7 +146,17 @@ std::unique_ptr<nano::message> nano::transport::message_deserializer::deserializ
}
case nano::message_type::confirm_ack:
{
return deserialize_confirm_ack (stream, header);
// Early filtering to not waste time deserializing duplicates
nano::uint128_t digest;
if (!network_filter_m.apply (read_buffer->data (), payload_size, &digest))
{
return deserialize_confirm_ack (stream, header, digest);
}
else
{
status = parse_status::duplicate_confirm_ack_message;
}
break;
}
case nano::message_type::node_id_handshake:
{
@ -208,7 +218,7 @@ std::unique_ptr<nano::keepalive> nano::transport::message_deserializer::deserial
return {};
}
std::unique_ptr<nano::publish> nano::transport::message_deserializer::deserialize_publish (nano::stream & stream, nano::message_header const & header, nano::uint128_t const & digest_a)
std::unique_ptr<nano::publish> nano::transport::message_deserializer::deserialize_publish (nano::stream & stream, nano::message_header const & header, nano::network_filter::digest_t const & digest_a)
{
auto error = false;
auto incoming = std::make_unique<nano::publish> (error, stream, header, digest_a, &block_uniquer_m);
@ -246,10 +256,10 @@ std::unique_ptr<nano::confirm_req> nano::transport::message_deserializer::deseri
return {};
}
std::unique_ptr<nano::confirm_ack> nano::transport::message_deserializer::deserialize_confirm_ack (nano::stream & stream, nano::message_header const & header)
std::unique_ptr<nano::confirm_ack> nano::transport::message_deserializer::deserialize_confirm_ack (nano::stream & stream, nano::message_header const & header, nano::network_filter::digest_t const & digest_a)
{
auto error = false;
auto incoming = std::make_unique<nano::confirm_ack> (error, stream, header, &vote_uniquer_m);
auto incoming = std::make_unique<nano::confirm_ack> (error, stream, header, digest_a, &vote_uniquer_m);
if (!error && nano::at_end (stream))
{
return incoming;

14
nano/node/transport/message_deserializer.hpp
View file

@ -1,5 +1,6 @@
#pragma once
#include <nano/lib/network_filter.hpp>
#include <nano/node/common.hpp>
#include <nano/node/messages.hpp>
@ -32,6 +33,7 @@ namespace transport
invalid_network,
outdated_version,
duplicate_publish_message,
duplicate_confirm_ack_message,
message_size_too_big,
};
@ -40,10 +42,11 @@ namespace transport
public:
using callback_type = std::function<void (boost::system::error_code, std::unique_ptr<nano::message>)>;
parse_status status;
parse_status status{ parse_status::none };
using read_query = std::function<void (std::shared_ptr<std::vector<uint8_t>> const &, size_t, std::function<void (boost::system::error_code const &, std::size_t)>)>;
message_deserializer (network_constants const &, network_filter &, block_uniquer &, vote_uniquer &, read_query read_op);
message_deserializer (nano::network_constants const &, nano::network_filter &, nano::block_uniquer &, nano::vote_uniquer &, read_query read_op);
/*
* Asynchronously read next message from the channel_read_fn.
@ -64,9 +67,9 @@ namespace transport
*/
std::unique_ptr<nano::message> deserialize (nano::message_header header, std::size_t payload_size);
std::unique_ptr<nano::keepalive> deserialize_keepalive (nano::stream &, nano::message_header const &);
std::unique_ptr<nano::publish> deserialize_publish (nano::stream &, nano::message_header const &, nano::uint128_t const & = 0);
std::unique_ptr<nano::publish> deserialize_publish (nano::stream &, nano::message_header const &, nano::network_filter::digest_t const & digest);
std::unique_ptr<nano::confirm_req> deserialize_confirm_req (nano::stream &, nano::message_header const &);
std::unique_ptr<nano::confirm_ack> deserialize_confirm_ack (nano::stream &, nano::message_header const &);
std::unique_ptr<nano::confirm_ack> deserialize_confirm_ack (nano::stream &, nano::message_header const &, nano::network_filter::digest_t const & digest);
std::unique_ptr<nano::node_id_handshake> deserialize_node_id_handshake (nano::stream &, nano::message_header const &);
std::unique_ptr<nano::telemetry_req> deserialize_telemetry_req (nano::stream &, nano::message_header const &);
std::unique_ptr<nano::telemetry_ack> deserialize_telemetry_ack (nano::stream &, nano::message_header const &);
@ -77,6 +80,7 @@ namespace transport
std::unique_ptr<nano::asc_pull_req> deserialize_asc_pull_req (nano::stream &, nano::message_header const &);
std::unique_ptr<nano::asc_pull_ack> deserialize_asc_pull_ack (nano::stream &, nano::message_header const &);
private:
std::shared_ptr<std::vector<uint8_t>> read_buffer;
private: // Constants
@ -85,7 +89,7 @@ namespace transport
private: // Dependencies
nano::network_constants const & network_constants_m;
nano::network_filter & publish_filter_m;
nano::network_filter & network_filter_m;
nano::block_uniquer & block_uniquer_m;
nano::vote_uniquer & vote_uniquer_m;
read_query read_op;

30
nano/node/transport/tcp_server.cpp
View file

@ -17,7 +17,7 @@ nano::transport::tcp_server::tcp_server (std::shared_ptr<nano::transport::tcp_so
node{ node_a },
allow_bootstrap{ allow_bootstrap_a },
message_deserializer{
std::make_shared<nano::transport::message_deserializer> (node_a->network_params.network, node_a->network.publish_filter, node_a->block_uniquer, node_a->vote_uniquer,
std::make_shared<nano::transport::message_deserializer> (node_a->network_params.network, node_a->network.filter, node_a->block_uniquer, node_a->vote_uniquer,
[socket_l = socket] (std::shared_ptr<std::vector<uint8_t>> const & data_a, size_t size_a, std::function<void (boost::system::error_code const &, std::size_t)> callback_a) {
debug_assert (socket_l != nullptr);
socket_l->read_impl (data_a, size_a, callback_a);
@ -119,16 +119,26 @@ void nano::transport::tcp_server::received_message (std::unique_ptr<nano::messag
node->stats.inc (nano::stat::type::error, to_stat_detail (message_deserializer->status));
// Avoid too much noise about `duplicate_publish_message` errors
if (message_deserializer->status == transport::parse_status::duplicate_publish_message)
switch (message_deserializer->status)
{
node->stats.inc (nano::stat::type::filter, nano::stat::detail::duplicate_publish_message);
}
else
{
node->logger.debug (nano::log::type::tcp_server, "Error deserializing message: {} ({})",
to_string (message_deserializer->status),
fmt::streamed (remote_endpoint));
// Avoid too much noise about `duplicate_publish_message` errors
case nano::transport::parse_status::duplicate_publish_message:
{
node->stats.inc (nano::stat::type::filter, nano::stat::detail::duplicate_publish_message);
}
break;
case nano::transport::parse_status::duplicate_confirm_ack_message:
{
node->stats.inc (nano::stat::type::filter, nano::stat::detail::duplicate_confirm_ack_message);
}
break;
default:
{
node->logger.debug (nano::log::type::tcp_server, "Error deserializing message: {} ({})",
to_string (message_deserializer->status),
fmt::streamed (remote_endpoint));
}
break;
}
}

5
nano/node/vote_processor.cpp
View file

@ -71,6 +71,11 @@ void nano::vote_processor::start ()
{
debug_assert (threads.empty ());
if (!config.enable)
{
return;
}
for (int n = 0; n < config.threads; ++n)
{
threads.emplace_back ([this] () {

2
nano/node/vote_processor.hpp
View file

@ -23,6 +23,8 @@ public:
nano::error deserialize (nano::tomlconfig & toml);
public:
bool enable{ true };
size_t max_pr_queue{ 256 };
size_t max_non_pr_queue{ 32 };
size_t pr_priority{ 3 };

16
nano/node/vote_router.cpp
View file

@ -20,9 +20,9 @@ nano::stat::detail nano::to_stat_detail (nano::vote_source source)
return nano::enum_util::cast<nano::stat::detail> (source);
}
nano::vote_router::vote_router (nano::vote_cache & cache, nano::recently_confirmed_cache & recently_confirmed) :
cache{ cache },
recently_confirmed{ recently_confirmed }
nano::vote_router::vote_router (nano::vote_cache & vote_cache_a, nano::recently_confirmed_cache & recently_confirmed_a) :
vote_cache{ vote_cache_a },
recently_confirmed{ recently_confirmed_a }
{
}
@ -81,12 +81,12 @@ std::unordered_map<nano::block_hash, nano::vote_code> nano::vote_router::vote (s
continue;
}
auto find_election = [this] (auto const & hash) {
auto find_election = [this] (auto const & hash) -> std::shared_ptr<nano::election> {
if (auto existing = elections.find (hash); existing != elections.end ())
{
return existing->second.lock ();
}
return std::shared_ptr<nano::election>{};
return {};
};
if (auto election = find_election (hash))
@ -118,6 +118,12 @@ std::unordered_map<nano::block_hash, nano::vote_code> nano::vote_router::vote (s
return results.find (hash) != results.end ();
}));
// Cache the votes that didn't match any election
if (source != nano::vote_source::cache)
{
vote_cache.insert (vote, results);
}
vote_processed.notify (vote, source, results);
return results;

8
nano/node/vote_router.hpp
View file

@ -70,14 +70,18 @@ public:
std::unique_ptr<container_info_component> collect_container_info (std::string const & name) const;
private: // Dependencies
nano::vote_cache & vote_cache;
nano::recently_confirmed_cache & recently_confirmed;
private:
void run ();
nano::vote_cache & cache;
nano::recently_confirmed_cache & recently_confirmed;
private:
// Mapping of block hashes to elections.
// Election already contains the associated block
std::unordered_map<nano::block_hash, std::weak_ptr<nano::election>> elections;
bool stopped{ false };
std::condition_variable_any condition;
mutable std::shared_mutex mutex;

2
nano/secure/CMakeLists.txt
View file

@ -56,8 +56,6 @@ add_library(
ledger_set_any.cpp
ledger_set_confirmed.hpp
ledger_set_confirmed.cpp
network_filter.hpp
network_filter.cpp
pending_info.hpp
pending_info.cpp
receivable_iterator.cpp

103
nano/secure/network_filter.cpp
View file

@ -1,103 +0,0 @@
#include <nano/crypto_lib/random_pool.hpp>
#include <nano/lib/blocks.hpp>
#include <nano/lib/locks.hpp>
#include <nano/lib/stream.hpp>
#include <nano/secure/common.hpp>
#include <nano/secure/network_filter.hpp>
nano::network_filter::network_filter (size_t size_a) :
items (size_a, nano::uint128_t{ 0 })
{
nano::random_pool::generate_block (key, key.size ());
}
bool nano::network_filter::apply (uint8_t const * bytes_a, size_t count_a, nano::uint128_t * digest_a)
{
// Get hash before locking
auto digest (hash (bytes_a, count_a));
nano::lock_guard<nano::mutex> lock{ mutex };
auto & element (get_element (digest));
bool existed (element == digest);
if (!existed)
{
// Replace likely old element with a new one
element = digest;
}
if (digest_a)
{
*digest_a = digest;
}
return existed;
}
void nano::network_filter::clear (nano::uint128_t const & digest_a)
{
nano::lock_guard<nano::mutex> lock{ mutex };
auto & element (get_element (digest_a));
if (element == digest_a)
{
element = nano::uint128_t{ 0 };
}
}
void nano::network_filter::clear (std::vector<nano::uint128_t> const & digests_a)
{
nano::lock_guard<nano::mutex> lock{ mutex };
for (auto const & digest : digests_a)
{
auto & element (get_element (digest));
if (element == digest)
{
element = nano::uint128_t{ 0 };
}
}
}
void nano::network_filter::clear (uint8_t const * bytes_a, size_t count_a)
{
clear (hash (bytes_a, count_a));
}
template <typename OBJECT>
void nano::network_filter::clear (OBJECT const & object_a)
{
clear (hash (object_a));
}
void nano::network_filter::clear ()
{
nano::lock_guard<nano::mutex> lock{ mutex };
items.assign (items.size (), nano::uint128_t{ 0 });
}
template <typename OBJECT>
nano::uint128_t nano::network_filter::hash (OBJECT const & object_a) const
{
std::vector<uint8_t> bytes;
{
nano::vectorstream stream (bytes);
object_a->serialize (stream);
}
return hash (bytes.data (), bytes.size ());
}
nano::uint128_t & nano::network_filter::get_element (nano::uint128_t const & hash_a)
{
debug_assert (!mutex.try_lock ());
debug_assert (items.size () > 0);
size_t index (hash_a % items.size ());
return items[index];
}
nano::uint128_t nano::network_filter::hash (uint8_t const * bytes_a, size_t count_a) const
{
nano::uint128_union digest{ 0 };
siphash_t siphash (key, static_cast<unsigned int> (key.size ()));
siphash.CalculateDigest (digest.bytes.data (), bytes_a, count_a);
return digest.number ();
}
// Explicitly instantiate
template nano::uint128_t nano::network_filter::hash (std::shared_ptr<nano::block> const &) const;
template void nano::network_filter::clear (std::shared_ptr<nano::block> const &);