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protocol: drop origin IP if a block fails to verify in sync mode

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It would otherwise be possible for a peer to send bad blocks,
then disconnect and reconnect again, escaping bans
This commit is contained in:
moneromooo-monero
2020-12-08 17:55:24 +00:00
parent 316dcaa399
commit d660f22ed1
6 changed files with 64 additions and 33 deletions
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15
src/cryptonote_protocol/block_queue.cpp
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@@ -52,12 +52,12 @@ namespace std {
namespace cryptonote
{
void block_queue::add_blocks(uint64_t height, std::vector<cryptonote::block_complete_entry> bcel, const boost::uuids::uuid &connection_id, float rate, size_t size)
void block_queue::add_blocks(uint64_t height, std::vector<cryptonote::block_complete_entry> bcel, const boost::uuids::uuid &connection_id, const epee::net_utils::network_address &addr, float rate, size_t size)
{
boost::unique_lock<boost::recursive_mutex> lock(mutex);
std::vector<crypto::hash> hashes;
bool has_hashes = remove_span(height, &hashes);
blocks.insert(span(height, std::move(bcel), connection_id, rate, size));
blocks.insert(span(height, std::move(bcel), connection_id, addr, rate, size));
if (has_hashes)
{
for (const crypto::hash &h: hashes)
@@ -69,11 +69,11 @@ void block_queue::add_blocks(uint64_t height, std::vector<cryptonote::block_comp
}
}
void block_queue::add_blocks(uint64_t height, uint64_t nblocks, const boost::uuids::uuid &connection_id, boost::posix_time::ptime time)
void block_queue::add_blocks(uint64_t height, uint64_t nblocks, const boost::uuids::uuid &connection_id, const epee::net_utils::network_address &addr, boost::posix_time::ptime time)
{
CHECK_AND_ASSERT_THROW_MES(nblocks > 0, "Empty span");
boost::unique_lock<boost::recursive_mutex> lock(mutex);
blocks.insert(span(height, nblocks, connection_id, time));
blocks.insert(span(height, nblocks, connection_id, addr, time));
}
void block_queue::flush_spans(const boost::uuids::uuid &connection_id, bool all)
@@ -228,7 +228,7 @@ bool block_queue::have(const crypto::hash &hash) const
return have_blocks.find(hash) != have_blocks.end();
}
std::pair<uint64_t, uint64_t> block_queue::reserve_span(uint64_t first_block_height, uint64_t last_block_height, uint64_t max_blocks, const boost::uuids::uuid &connection_id, bool sync_pruned_blocks, uint32_t local_pruning_seed, uint32_t pruning_seed, uint64_t blockchain_height, const std::vector<std::pair<crypto::hash, uint64_t>> &block_hashes, boost::posix_time::ptime time)
std::pair<uint64_t, uint64_t> block_queue::reserve_span(uint64_t first_block_height, uint64_t last_block_height, uint64_t max_blocks, const boost::uuids::uuid &connection_id, const epee::net_utils::network_address &addr, bool sync_pruned_blocks, uint32_t local_pruning_seed, uint32_t pruning_seed, uint64_t blockchain_height, const std::vector<std::pair<crypto::hash, uint64_t>> &block_hashes, boost::posix_time::ptime time)
{
boost::unique_lock<boost::recursive_mutex> lock(mutex);
@@ -305,7 +305,7 @@ std::pair<uint64_t, uint64_t> block_queue::reserve_span(uint64_t first_block_hei
return std::make_pair(0, 0);
}
MDEBUG("Reserving span " << span_start_height << " - " << (span_start_height + span_length - 1) << " for " << connection_id);
add_blocks(span_start_height, span_length, connection_id, time);
add_blocks(span_start_height, span_length, connection_id, addr, time);
set_span_hashes(span_start_height, connection_id, hashes);
return std::make_pair(span_start_height, span_length);
}
@@ -354,7 +354,7 @@ void block_queue::set_span_hashes(uint64_t start_height, const boost::uuids::uui
}
}
bool block_queue::get_next_span(uint64_t &height, std::vector<cryptonote::block_complete_entry> &bcel, boost::uuids::uuid &connection_id, bool filled) const
bool block_queue::get_next_span(uint64_t &height, std::vector<cryptonote::block_complete_entry> &bcel, boost::uuids::uuid &connection_id, epee::net_utils::network_address &addr, bool filled) const
{
boost::unique_lock<boost::recursive_mutex> lock(mutex);
if (blocks.empty())
@@ -367,6 +367,7 @@ bool block_queue::get_next_span(uint64_t &height, std::vector<cryptonote::block_
height = i->start_block_height;
bcel = i->blocks;
connection_id = i->connection_id;
addr = i->origin;
return true;
}
}