mirror of
https://github.com/ton-blockchain/ton
synced 2025-03-09 15:40:10 +00:00
504 lines
22 KiB
C++
504 lines
22 KiB
C++
/*
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This file is part of TON Blockchain Library.
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TON Blockchain Library is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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TON Blockchain Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
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Copyright 2017-2020 Telegram Systems LLP
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*/
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#include "validator-group.hpp"
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#include "fabric.h"
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#include "ton/ton-io.hpp"
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#include "td/utils/overloaded.h"
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#include "common/delay.h"
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#include "ton/ton-tl.hpp"
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#include "td/utils/Random.h"
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namespace ton {
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namespace validator {
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void ValidatorGroup::generate_block_candidate(td::uint32 round_id, td::Promise<BlockCandidate> promise) {
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if (round_id > last_known_round_id_) {
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last_known_round_id_ = round_id;
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}
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if (!started_) {
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promise.set_error(td::Status::Error(ErrorCode::notready, "cannot collate block: group not started"));
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return;
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}
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if (cached_collated_block_) {
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if (cached_collated_block_->result) {
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promise.set_result(cached_collated_block_->result.value().clone());
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} else {
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cached_collated_block_->promises.push_back(std::move(promise));
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}
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return;
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}
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cached_collated_block_ = std::make_shared<CachedCollatedBlock>();
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cached_collated_block_->promises.push_back(std::move(promise));
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td::Promise<BlockCandidate> P = [SelfId = actor_id(this),
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cache = cached_collated_block_](td::Result<BlockCandidate> R) {
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td::actor::send_closure(SelfId, &ValidatorGroup::generated_block_candidate, std::move(cache), std::move(R));
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};
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if (mode_ == ValidatorManagerOptions::validator_lite_all ||
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(mode_ == ValidatorManagerOptions::validator_lite_shards && !shard_.is_masterchain())) {
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send_collate_query(round_id, td::Timestamp::in(10.0), std::move(P));
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return;
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}
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run_collate_query(shard_, min_masterchain_block_id_, prev_block_ids_,
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Ed25519_PublicKey{local_id_full_.ed25519_value().raw()}, validator_set_, manager_,
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td::Timestamp::in(10.0), std::move(P));
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}
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void ValidatorGroup::generated_block_candidate(std::shared_ptr<CachedCollatedBlock> cache,
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td::Result<BlockCandidate> R) {
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if (R.is_error()) {
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for (auto &p : cache->promises) {
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p.set_error(R.error().clone());
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}
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if (cache == cached_collated_block_) {
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cached_collated_block_ = nullptr;
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}
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} else {
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cache->result = R.move_as_ok();
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for (auto &p : cache->promises) {
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p.set_value(cache->result.value().clone());
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}
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}
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cache->promises.clear();
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}
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void ValidatorGroup::validate_block_candidate(td::uint32 round_id, BlockCandidate block,
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td::Promise<UnixTime> promise) {
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if (round_id > last_known_round_id_) {
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last_known_round_id_ = round_id;
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}
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if (round_id < last_known_round_id_) {
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promise.set_error(td::Status::Error(ErrorCode::notready, "too old"));
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return;
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}
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if (approved_candidates_cache_round_ != round_id) {
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approved_candidates_cache_round_ = round_id;
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approved_candidates_cache_.clear();
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}
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auto next_block_id = create_next_block_id(block.id.root_hash, block.id.file_hash);
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block.id = next_block_id;
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CacheKey cache_key = block_to_cache_key(block);
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auto it = approved_candidates_cache_.find(cache_key);
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if (it != approved_candidates_cache_.end()) {
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promise.set_result(it->second);
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return;
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}
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auto P = td::PromiseCreator::lambda([SelfId = actor_id(this), round_id, block = block.clone(),
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promise = std::move(promise)](td::Result<ValidateCandidateResult> R) mutable {
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if (R.is_error()) {
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auto S = R.move_as_error();
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if (S.code() != ErrorCode::timeout && S.code() != ErrorCode::notready) {
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LOG(ERROR) << "failed to validate candidate: " << S;
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}
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delay_action(
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[SelfId, round_id, block = std::move(block), promise = std::move(promise)]() mutable {
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td::actor::send_closure(SelfId, &ValidatorGroup::validate_block_candidate, round_id, std::move(block),
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std::move(promise));
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},
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td::Timestamp::in(0.1));
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} else {
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auto v = R.move_as_ok();
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v.visit(td::overloaded(
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[&](UnixTime ts) {
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td::actor::send_closure(SelfId, &ValidatorGroup::update_approve_cache, round_id, block_to_cache_key(block),
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ts);
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promise.set_result(ts);
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},
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[&](CandidateReject reject) {
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promise.set_error(
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td::Status::Error(ErrorCode::protoviolation, PSTRING() << "bad candidate: " << reject.reason));
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}));
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}
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});
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if (!started_) {
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P.set_error(td::Status::Error(ErrorCode::notready, "validator group not started"));
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return;
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}
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VLOG(VALIDATOR_DEBUG) << "validating block candidate " << next_block_id.to_str();
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block.id = next_block_id;
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run_validate_query(shard_, min_masterchain_block_id_, prev_block_ids_, std::move(block), validator_set_, manager_,
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td::Timestamp::in(15.0), std::move(P),
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collator_config_.full_collated_data ? ValidateMode::full_collated_data : 0);
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}
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void ValidatorGroup::update_approve_cache(td::uint32 round_id, CacheKey key, UnixTime value) {
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if (approved_candidates_cache_round_ != round_id) {
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return;
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}
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approved_candidates_cache_[key] = value;
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}
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void ValidatorGroup::accept_block_candidate(td::uint32 round_id, PublicKeyHash src, td::BufferSlice block_data,
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RootHash root_hash, FileHash file_hash,
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std::vector<BlockSignature> signatures,
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std::vector<BlockSignature> approve_signatures,
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validatorsession::ValidatorSessionStats stats,
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td::Promise<td::Unit> promise) {
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if (round_id >= last_known_round_id_) {
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last_known_round_id_ = round_id + 1;
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}
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auto sig_set = create_signature_set(std::move(signatures));
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validator_set_->check_signatures(root_hash, file_hash, sig_set).ensure();
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auto approve_sig_set = create_signature_set(std::move(approve_signatures));
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validator_set_->check_approve_signatures(root_hash, file_hash, approve_sig_set).ensure();
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if (!started_) {
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postponed_accept_.push_back(PostponedAccept{root_hash, file_hash, std::move(block_data), std::move(sig_set),
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std::move(approve_sig_set), std::move(stats), std::move(promise)});
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return;
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}
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auto next_block_id = create_next_block_id(root_hash, file_hash);
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td::actor::send_closure(manager_, &ValidatorManager::log_validator_session_stats, next_block_id, std::move(stats));
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auto block =
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block_data.size() > 0 ? create_block(next_block_id, std::move(block_data)).move_as_ok() : td::Ref<BlockData>{};
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accept_block_query(next_block_id, std::move(block), std::move(prev_block_ids_), std::move(sig_set),
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std::move(approve_sig_set), src == local_id_, std::move(promise));
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prev_block_ids_ = std::vector<BlockIdExt>{next_block_id};
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cached_collated_block_ = nullptr;
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}
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void ValidatorGroup::accept_block_query(BlockIdExt block_id, td::Ref<BlockData> block, std::vector<BlockIdExt> prev,
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td::Ref<BlockSignatureSet> sig_set, td::Ref<BlockSignatureSet> approve_sig_set,
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bool send_broadcast, td::Promise<td::Unit> promise, bool is_retry) {
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if (!is_retry) {
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td::actor::send_closure(manager_, &ValidatorManager::validated_new_block, block_id);
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}
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auto P = td::PromiseCreator::lambda([=, SelfId = actor_id(this),
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promise = std::move(promise)](td::Result<td::Unit> R) mutable {
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if (R.is_error()) {
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if (R.error().code() == ErrorCode::cancelled) {
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promise.set_value(td::Unit());
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return;
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}
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LOG_CHECK(R.error().code() == ErrorCode::timeout || R.error().code() == ErrorCode::notready) << R.move_as_error();
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td::actor::send_closure(SelfId, &ValidatorGroup::accept_block_query, block_id, std::move(block), std::move(prev),
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std::move(sig_set), std::move(approve_sig_set), false, std::move(promise), true);
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} else {
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promise.set_value(R.move_as_ok());
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}
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});
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run_accept_block_query(block_id, std::move(block), std::move(prev), validator_set_, std::move(sig_set),
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std::move(approve_sig_set), send_broadcast,
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shard_.is_masterchain() || mode_ == ValidatorManagerOptions::validator_normal, manager_,
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std::move(P));
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}
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void ValidatorGroup::skip_round(td::uint32 round_id) {
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if (round_id >= last_known_round_id_) {
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last_known_round_id_ = round_id + 1;
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}
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}
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void ValidatorGroup::get_approved_candidate(PublicKey source, RootHash root_hash, FileHash file_hash,
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FileHash collated_data_file_hash, td::Promise<BlockCandidate> promise) {
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BlockIdExt id = create_next_block_id(root_hash, file_hash);
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td::actor::send_closure(manager_, &ValidatorManager::get_block_candidate_from_db, source, id, collated_data_file_hash,
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std::move(promise));
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}
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BlockId ValidatorGroup::create_next_block_id_simple() const {
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BlockSeqno seqno = 0;
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for (auto &p : prev_block_ids_) {
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if (seqno < p.id.seqno) {
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seqno = p.id.seqno;
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}
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}
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return BlockId{shard_.workchain, shard_.shard, seqno + 1};
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}
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BlockIdExt ValidatorGroup::create_next_block_id(RootHash root_hash, FileHash file_hash) const {
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return BlockIdExt{create_next_block_id_simple(), root_hash, file_hash};
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}
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std::unique_ptr<validatorsession::ValidatorSession::Callback> ValidatorGroup::make_validator_session_callback() {
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class Callback : public validatorsession::ValidatorSession::Callback {
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public:
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Callback(td::actor::ActorId<ValidatorGroup> id) : id_(id) {
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}
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void on_candidate(td::uint32 round, PublicKey source, validatorsession::ValidatorSessionRootHash root_hash,
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td::BufferSlice data, td::BufferSlice collated_data,
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td::Promise<validatorsession::ValidatorSession::CandidateDecision> promise) override {
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auto P = td::PromiseCreator::lambda([id = id_, promise = std::move(promise)](td::Result<td::uint32> R) mutable {
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if (R.is_ok()) {
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promise.set_value(validatorsession::ValidatorSession::CandidateDecision{R.move_as_ok()});
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} else {
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auto S = R.move_as_error();
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promise.set_value(
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validatorsession::ValidatorSession::CandidateDecision{S.message().c_str(), td::BufferSlice()});
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}
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});
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BlockCandidate candidate{Ed25519_PublicKey{source.ed25519_value().raw()},
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BlockIdExt{0, 0, 0, root_hash, sha256_bits256(data.as_slice())},
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sha256_bits256(collated_data.as_slice()), data.clone(), collated_data.clone()};
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td::actor::send_closure(id_, &ValidatorGroup::validate_block_candidate, round, std::move(candidate),
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std::move(P));
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}
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void on_generate_slot(td::uint32 round, td::Promise<BlockCandidate> promise) override {
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td::actor::send_closure(id_, &ValidatorGroup::generate_block_candidate, round, std::move(promise));
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}
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void on_block_committed(td::uint32 round, PublicKey source, validatorsession::ValidatorSessionRootHash root_hash,
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validatorsession::ValidatorSessionFileHash file_hash, td::BufferSlice data,
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std::vector<std::pair<PublicKeyHash, td::BufferSlice>> signatures,
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std::vector<std::pair<PublicKeyHash, td::BufferSlice>> approve_signatures,
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validatorsession::ValidatorSessionStats stats) override {
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std::vector<BlockSignature> sigs;
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for (auto &sig : signatures) {
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sigs.emplace_back(BlockSignature{sig.first.bits256_value(), std::move(sig.second)});
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}
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std::vector<BlockSignature> approve_sigs;
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for (auto &sig : approve_signatures) {
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approve_sigs.emplace_back(BlockSignature{sig.first.bits256_value(), std::move(sig.second)});
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}
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auto P = td::PromiseCreator::lambda([](td::Result<td::Unit>) {});
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td::actor::send_closure(id_, &ValidatorGroup::accept_block_candidate, round, source.compute_short_id(),
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std::move(data), root_hash, file_hash, std::move(sigs), std::move(approve_sigs),
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std::move(stats), std::move(P));
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}
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void on_block_skipped(td::uint32 round) override {
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td::actor::send_closure(id_, &ValidatorGroup::skip_round, round);
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}
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void get_approved_candidate(PublicKey source, validatorsession::ValidatorSessionRootHash root_hash,
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validatorsession::ValidatorSessionFileHash file_hash,
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validatorsession::ValidatorSessionCollatedDataFileHash collated_data_file_hash,
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td::Promise<BlockCandidate> promise) override {
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td::actor::send_closure(id_, &ValidatorGroup::get_approved_candidate, source, root_hash, file_hash,
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collated_data_file_hash, std::move(promise));
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}
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private:
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td::actor::ActorId<ValidatorGroup> id_;
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};
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return std::make_unique<Callback>(actor_id(this));
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}
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void ValidatorGroup::create_session() {
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CHECK(!init_);
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init_ = true;
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std::vector<validatorsession::ValidatorSessionNode> vec;
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auto v = validator_set_->export_vector();
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bool found = false;
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for (auto &el : v) {
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validatorsession::ValidatorSessionNode n;
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n.pub_key = ValidatorFullId{el.key};
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n.weight = el.weight;
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if (el.addr.is_zero()) {
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n.adnl_id = adnl::AdnlNodeIdShort{n.pub_key.compute_short_id()};
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} else {
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n.adnl_id = adnl::AdnlNodeIdShort{el.addr};
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}
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if (n.pub_key.compute_short_id() == local_id_) {
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CHECK(!found);
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found = true;
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local_id_full_ = n.pub_key;
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local_adnl_id_ = n.adnl_id;
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}
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vec.emplace_back(std::move(n));
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}
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CHECK(found);
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if (!config_.new_catchain_ids) {
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session_ = validatorsession::ValidatorSession::create(session_id_, config_, local_id_, std::move(vec),
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make_validator_session_callback(), keyring_, adnl_, rldp_,
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overlays_, db_root_, "-", allow_unsafe_self_blocks_resync_);
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} else {
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session_ = validatorsession::ValidatorSession::create(
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session_id_, config_, local_id_, std::move(vec), make_validator_session_callback(), keyring_, adnl_, rldp_,
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overlays_, db_root_ + "/catchains/",
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PSTRING() << "." << shard_.workchain << "." << shard_.shard << "." << validator_set_->get_catchain_seqno()
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<< ".",
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allow_unsafe_self_blocks_resync_);
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}
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if (started_) {
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td::actor::send_closure(session_, &validatorsession::ValidatorSession::start);
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}
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td::actor::send_closure(rldp_, &rldp::Rldp::add_id, local_adnl_id_);
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}
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void ValidatorGroup::start(std::vector<BlockIdExt> prev, BlockIdExt min_masterchain_block_id) {
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prev_block_ids_ = prev;
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min_masterchain_block_id_ = min_masterchain_block_id;
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cached_collated_block_ = nullptr;
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started_ = true;
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if (init_) {
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td::actor::send_closure(session_, &validatorsession::ValidatorSession::start);
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}
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for (auto &p : postponed_accept_) {
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auto next_block_id = create_next_block_id(p.root_hash, p.file_hash);
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td::actor::send_closure(manager_, &ValidatorManager::log_validator_session_stats, next_block_id,
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std::move(p.stats));
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auto block =
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p.block.size() > 0 ? create_block(next_block_id, std::move(p.block)).move_as_ok() : td::Ref<BlockData>{};
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accept_block_query(next_block_id, std::move(block), std::move(prev_block_ids_), std::move(p.sigs),
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std::move(p.approve_sigs), false, std::move(p.promise));
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prev_block_ids_ = std::vector<BlockIdExt>{next_block_id};
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}
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postponed_accept_.clear();
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}
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void ValidatorGroup::destroy() {
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if (!session_.empty()) {
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auto ses = session_.release();
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delay_action([ses]() mutable { td::actor::send_closure(ses, &validatorsession::ValidatorSession::destroy); },
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td::Timestamp::in(10.0));
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}
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stop();
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}
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void ValidatorGroup::get_session_info(
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td::Promise<tl_object_ptr<ton_api::engine_validator_validatorSessionInfo>> promise) {
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if (session_.empty() || !started_) {
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promise.set_error(td::Status::Error(ErrorCode::notready, "session not started"));
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}
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auto P = td::PromiseCreator::lambda(
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[promise = std::move(promise), block_id = create_next_block_id_simple()](
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td::Result<tl_object_ptr<ton_api::engine_validator_validatorSessionInfo>> R) mutable {
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if (R.is_error()) {
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promise.set_error(R.move_as_error());
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return;
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}
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auto info = R.move_as_ok();
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info->current_block_ = create_tl_block_id_simple(block_id);
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promise.set_result(std::move(info));
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});
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td::actor::send_closure(session_, &validatorsession::ValidatorSession::get_session_info, std::move(P));
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}
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void ValidatorGroup::send_collate_query(td::uint32 round_id, td::Timestamp timeout, td::Promise<BlockCandidate> promise,
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unsigned max_retries) {
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if (round_id < last_known_round_id_) {
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promise.set_error(td::Status::Error("too old"));
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return;
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}
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BlockId next_block_id = create_next_block_id_simple();
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adnl::AdnlNodeIdShort collator = adnl::AdnlNodeIdShort::zero();
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// TODO: some way to choose node (similar to "unreliability" in full-node)
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int cnt = 0;
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for (const block::CollatorNodeDescr &c : collator_config_.collator_nodes) {
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|
if (shard_intersects(shard_, c.shard)) {
|
|
if (td::Random::fast(0, cnt) == 0) {
|
|
collator = adnl::AdnlNodeIdShort(c.adnl_id);
|
|
}
|
|
++cnt;
|
|
}
|
|
}
|
|
if (collator.is_zero()) {
|
|
promise.set_error(td::Status::Error(PSTRING() << "no collator for shard " << shard_.to_str()));
|
|
return;
|
|
}
|
|
|
|
promise = td::PromiseCreator::lambda([=, SelfId = actor_id(this), promise = std::move(promise),
|
|
timer = td::Timer()](td::Result<BlockCandidate> R) mutable {
|
|
if (R.is_ok()) {
|
|
LOG(INFO) << "collate query for " << next_block_id.to_str() << ": success, time=" << timer.elapsed() << "s";
|
|
promise.set_result(R.move_as_ok());
|
|
return;
|
|
}
|
|
bool retry = (!timeout || !timeout.is_in_past()) && max_retries > 0;
|
|
LOG(WARNING) << "collate query for " << next_block_id.to_str() << ": " << R.error() << ", time=" << timer.elapsed()
|
|
<< "s, " << (retry ? "retrying" : "giving up");
|
|
if (retry) {
|
|
td::actor::send_closure(SelfId, &ValidatorGroup::send_collate_query, round_id, timeout, std::move(promise),
|
|
max_retries - 1);
|
|
} else {
|
|
promise.set_result(td::Status::Error(ErrorCode::timeout, "timeout"));
|
|
}
|
|
});
|
|
|
|
std::vector<tl_object_ptr<ton_api::tonNode_blockIdExt>> prev_blocks;
|
|
for (const BlockIdExt &p : prev_block_ids_) {
|
|
prev_blocks.push_back(create_tl_block_id(p));
|
|
}
|
|
td::BufferSlice query = create_serialize_tl_object<ton_api::collatorNode_generateBlock>(
|
|
shard_.workchain, shard_.shard, create_tl_block_id(min_masterchain_block_id_), std::move(prev_blocks),
|
|
local_id_full_.ed25519_value().raw());
|
|
|
|
auto P = td::PromiseCreator::lambda(
|
|
[SelfId = actor_id(this), round_id, promise = std::move(promise)](td::Result<td::BufferSlice> R) mutable {
|
|
if (R.is_error()) {
|
|
promise.set_error(R.move_as_error_prefix("rldp query failed: "));
|
|
return;
|
|
}
|
|
td::actor::send_closure(SelfId, &ValidatorGroup::receive_collate_query_response, round_id, R.move_as_ok(),
|
|
std::move(promise));
|
|
});
|
|
LOG(INFO) << "sending collate query for " << next_block_id.to_str() << ": send to " << collator;
|
|
size_t max_answer_size = config_.max_block_size + config_.max_collated_data_size + 256;
|
|
td::Timestamp query_timeout = td::Timestamp::in(10.0);
|
|
query_timeout.relax(timeout);
|
|
td::actor::send_closure(rldp_, &rldp::Rldp::send_query_ex, local_adnl_id_, collator, "collatequery", std::move(P),
|
|
timeout, std::move(query), max_answer_size);
|
|
}
|
|
|
|
void ValidatorGroup::receive_collate_query_response(td::uint32 round_id, td::BufferSlice data,
|
|
td::Promise<BlockCandidate> promise) {
|
|
if (round_id < last_known_round_id_) {
|
|
promise.set_error(td::Status::Error("too old"));
|
|
return;
|
|
}
|
|
TRY_RESULT_PROMISE(promise, f, fetch_tl_object<ton_api::collatorNode_GenerateBlockResult>(data, true));
|
|
tl_object_ptr<ton_api::db_candidate> b;
|
|
ton_api::downcast_call(*f, td::overloaded(
|
|
[&](ton_api::collatorNode_generateBlockError &r) {
|
|
td::Status error = td::Status::Error(r.code_, r.message_);
|
|
promise.set_error(error.move_as_error_prefix("collate query: "));
|
|
},
|
|
[&](ton_api::collatorNode_generateBlockSuccess &r) { b = std::move(r.candidate_); }));
|
|
if (!b) {
|
|
return;
|
|
}
|
|
auto key = PublicKey{b->source_};
|
|
if (key != local_id_full_) {
|
|
promise.set_error(td::Status::Error("collate query: block candidate source mismatch"));
|
|
return;
|
|
}
|
|
auto e_key = Ed25519_PublicKey{key.ed25519_value().raw()};
|
|
auto block_id = ton::create_block_id(b->id_);
|
|
if (block_id.shard_full() != shard_) {
|
|
promise.set_error(td::Status::Error("collate query: shard mismatch"));
|
|
return;
|
|
}
|
|
auto collated_data_hash = td::sha256_bits256(b->collated_data_);
|
|
BlockCandidate candidate(e_key, block_id, collated_data_hash, std::move(b->data_), std::move(b->collated_data_));
|
|
|
|
auto P = td::PromiseCreator::lambda(
|
|
[candidate = candidate.clone(), promise = std::move(promise)](td::Result<UnixTime> R) mutable {
|
|
if (R.is_error()) {
|
|
promise.set_error(R.move_as_error_prefix("validate received block error: "));
|
|
return;
|
|
}
|
|
promise.set_result(std::move(candidate));
|
|
});
|
|
validate_block_candidate(round_id, std::move(candidate), std::move(P));
|
|
}
|
|
|
|
} // namespace validator
|
|
|
|
} // namespace ton
|