mirror of https://github.com/oxen-io/oxen-core.git
116 lines
3.8 KiB
C++
116 lines
3.8 KiB
C++
// Copyright (c) 2018, The Loki Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include "blockchain.h"
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#include "serialization/serialization.h"
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#include "cryptonote_protocol/cryptonote_protocol_handler_common.h"
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#include "cryptonote_basic/blobdatatype.h"
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namespace cryptonote
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{
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class core;
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};
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namespace service_nodes
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{
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struct proof_info
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{
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uint64_t timestamp;
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uint16_t version_major, version_minor, version_patch;
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};
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struct quorum_checkpointing
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{
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std::vector<crypto::public_key> quorum_nodes;
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BEGIN_SERIALIZE()
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FIELD(quorum_nodes)
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END_SERIALIZE()
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};
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struct quorum_uptime_proof
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{
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std::vector<crypto::public_key> quorum_nodes;
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std::vector<crypto::public_key> nodes_to_test;
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BEGIN_SERIALIZE()
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FIELD(quorum_nodes)
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FIELD(nodes_to_test)
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END_SERIALIZE()
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};
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struct quorum_manager
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{
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std::shared_ptr<const quorum_uptime_proof> uptime_proof;
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std::shared_ptr<const quorum_checkpointing> checkpointing;
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};
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enum struct quorum_type
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{
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uptime_proof = 0,
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checkpointing,
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count,
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};
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class quorum_cop
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: public cryptonote::Blockchain::BlockAddedHook,
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public cryptonote::Blockchain::BlockchainDetachedHook,
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public cryptonote::Blockchain::InitHook
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{
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public:
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explicit quorum_cop(cryptonote::core& core);
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void init() override;
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void block_added(const cryptonote::block& block, const std::vector<cryptonote::transaction>& txs) override;
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void blockchain_detached(uint64_t height) override;
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void process_uptime_quorum (cryptonote::block const &block);
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void process_checkpoint_quorum(cryptonote::block const &block);
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bool handle_uptime_proof(const cryptonote::NOTIFY_UPTIME_PROOF::request &proof);
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static const uint64_t REORG_SAFETY_BUFFER_IN_BLOCKS = 20;
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static_assert(REORG_SAFETY_BUFFER_IN_BLOCKS < deregister_vote::VOTE_LIFETIME_BY_HEIGHT,
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"Safety buffer should always be less than the vote lifetime");
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bool prune_uptime_proof();
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proof_info get_uptime_proof(const crypto::public_key &pubkey) const;
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void generate_uptime_proof_request(cryptonote::NOTIFY_UPTIME_PROOF::request& req) const;
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private:
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cryptonote::core& m_core;
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uint64_t m_uptime_proof_height;
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std::unordered_map<crypto::public_key, proof_info> m_uptime_proof_seen;
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mutable epee::critical_section m_lock;
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};
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}
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