diff options
Diffstat (limited to 'src/cryptonote_core')
| -rw-r--r-- | src/cryptonote_core/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | src/cryptonote_core/blockchain.cpp | 49 | ||||
| -rw-r--r-- | src/cryptonote_core/blockchain.h | 890 | ||||
| -rw-r--r-- | src/cryptonote_core/blockchain_storage.cpp | 8 | ||||
| -rw-r--r-- | src/cryptonote_core/checkpoints.cpp | 251 | ||||
| -rw-r--r-- | src/cryptonote_core/checkpoints.h | 181 | ||||
| -rw-r--r-- | src/cryptonote_core/checkpoints_create.cpp | 280 | ||||
| -rw-r--r-- | src/cryptonote_core/checkpoints_create.h | 48 | ||||
| -rw-r--r-- | src/cryptonote_core/cryptonote_core.cpp | 19 | ||||
| -rw-r--r-- | src/cryptonote_core/cryptonote_core.h | 650 | ||||
| -rw-r--r-- | src/cryptonote_core/difficulty.cpp | 6 | ||||
| -rw-r--r-- | src/cryptonote_core/difficulty.h | 12 |
12 files changed, 431 insertions, 1965 deletions
diff --git a/src/cryptonote_core/CMakeLists.txt b/src/cryptonote_core/CMakeLists.txt index 205356797..88eea1d7e 100644 --- a/src/cryptonote_core/CMakeLists.txt +++ b/src/cryptonote_core/CMakeLists.txt @@ -31,6 +31,7 @@ set(cryptonote_core_sources blockchain_storage.cpp blockchain.cpp checkpoints.cpp + checkpoints_create.cpp cryptonote_basic_impl.cpp cryptonote_core.cpp cryptonote_format_utils.cpp @@ -48,6 +49,7 @@ set(cryptonote_core_private_headers blockchain_storage_boost_serialization.h blockchain.h checkpoints.h + checkpoints_create.h connection_context.h cryptonote_basic.h cryptonote_basic_impl.h diff --git a/src/cryptonote_core/blockchain.cpp b/src/cryptonote_core/blockchain.cpp index 2f42e1db5..131f56a4d 100644 --- a/src/cryptonote_core/blockchain.cpp +++ b/src/cryptonote_core/blockchain.cpp @@ -49,7 +49,7 @@ #include "common/boost_serialization_helper.h" #include "warnings.h" #include "crypto/hash.h" -#include "cryptonote_core/checkpoints.h" +#include "cryptonote_core/checkpoints_create.h" #include "cryptonote_core/cryptonote_core.h" #if defined(PER_BLOCK_CHECKPOINT) #include "blocks/blocks.h" @@ -840,7 +840,7 @@ bool Blockchain::switch_to_alternative_blockchain(std::list<blocks_ext_by_hash:: } } - //removing alt_chain entries from alternative chains container + //removing alt_chain entries from alternative chain for (auto ch_ent: alt_chain) { m_alternative_chains.erase(ch_ent); @@ -991,7 +991,8 @@ bool Blockchain::validate_miner_transaction(const block& b, size_t cumulative_bl return true; } //------------------------------------------------------------------ -// get the block sizes of the last <count> blocks, and return by reference <sz>. +// get the block sizes of the last <count> blocks, starting at <from_height> +// and return by reference <sz>. void Blockchain::get_last_n_blocks_sizes(std::vector<size_t>& sz, size_t count) const { LOG_PRINT_L3("Blockchain::" << __func__); @@ -1407,10 +1408,6 @@ bool Blockchain::get_blocks(uint64_t start_offset, size_t count, std::list<block //TODO: This function *looks* like it won't need to be rewritten // to use BlockchainDB, as it calls other functions that were, // but it warrants some looking into later. -// -//FIXME: This function appears to want to return false if any transactions -// that belong with blocks are missing, but not if blocks themselves -// are missing. bool Blockchain::handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp) { LOG_PRINT_L3("Blockchain::" << __func__); @@ -1424,9 +1421,6 @@ bool Blockchain::handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NO { std::list<crypto::hash> missed_tx_ids; std::list<transaction> txs; - - // FIXME: s/rsp.missed_ids/missed_tx_id/ ? Seems like rsp.missed_ids - // is for missed blocks, not missed transactions as well. get_transactions(bl.tx_hashes, txs, missed_tx_ids); if (missed_tx_ids.size() != 0) @@ -1674,8 +1668,6 @@ uint64_t Blockchain::block_difficulty(uint64_t i) const return 0; } //------------------------------------------------------------------ -//TODO: return type should be void, throw on exception -// alternatively, return true only if no blocks missed template<class t_ids_container, class t_blocks_container, class t_missed_container> bool Blockchain::get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs) const { @@ -1700,8 +1692,6 @@ bool Blockchain::get_blocks(const t_ids_container& block_ids, t_blocks_container return true; } //------------------------------------------------------------------ -//TODO: return type should be void, throw on exception -// alternatively, return true only if no transactions missed template<class t_ids_container, class t_tx_container, class t_missed_container> bool Blockchain::get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs) const { @@ -1718,6 +1708,7 @@ bool Blockchain::get_transactions(const t_ids_container& txs_ids, t_tx_container { missed_txs.push_back(tx_hash); } + //FIXME: is this the correct way to handle this? catch (const std::exception& e) { return false; @@ -1974,11 +1965,6 @@ bool Blockchain::get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<u return true; } //------------------------------------------------------------------ -//FIXME: it seems this function is meant to be merely a wrapper around -// another function of the same name, this one adding one bit of -// functionality. Should probably move anything more than that -// (getting the hash of the block at height max_used_block_id) -// to the other function to keep everything in one place. // This function overloads its sister function with // an extra value (hash of highest block that holds an output used as input) // as a return-by-reference. @@ -1989,7 +1975,6 @@ bool Blockchain::check_tx_inputs(const transaction& tx, uint64_t& max_used_block #if defined(PER_BLOCK_CHECKPOINT) // check if we're doing per-block checkpointing - // FIXME: investigate why this block returns if (m_db->height() < m_blocks_hash_check.size() && kept_by_block) { TIME_MEASURE_START(a); @@ -2053,10 +2038,6 @@ bool Blockchain::have_tx_keyimges_as_spent(const transaction &tx) const } //------------------------------------------------------------------ // This function validates transaction inputs and their keys. -// FIXME: consider moving functionality specific to one input into -// check_tx_input() rather than here, and use this function simply -// to iterate the inputs as necessary (splitting the task -// using threads, etc.) bool Blockchain::check_tx_inputs(const transaction& tx, uint64_t* pmax_used_block_height) { LOG_PRINT_L3("Blockchain::" << __func__); @@ -2339,7 +2320,7 @@ bool Blockchain::check_tx_input(const txin_to_key& txin, const crypto::hash& tx_ output_keys.clear(); - // collect output keys + //check ring signature outputs_visitor vi(output_keys, *this); if (!scan_outputkeys_for_indexes(txin, vi, tx_prefix_hash, pmax_related_block_height)) { @@ -2636,11 +2617,6 @@ leave: txs.push_back(tx); TIME_MEASURE_START(dd); - // FIXME: the storage should not be responsible for validation. - // If it does any, it is merely a sanity check. - // Validation is the purview of the Blockchain class - // - TW - // // ND: this is not needed, db->add_block() checks for duplicate k_images and fails accordingly. // if (!check_for_double_spend(tx, keys)) // { @@ -2821,8 +2797,6 @@ bool Blockchain::add_new_block(const block& bl_, block_verification_context& bvc return handle_block_to_main_chain(bl, id, bvc); } //------------------------------------------------------------------ -//TODO: Refactor, consider returning a failure height and letting -// caller decide course of action. void Blockchain::check_against_checkpoints(const checkpoints& points, bool enforce) { const auto& pts = points.get_points(); @@ -2860,16 +2834,16 @@ void Blockchain::check_against_checkpoints(const checkpoints& points, bool enfor // with an existing checkpoint. bool Blockchain::update_checkpoints(const std::string& file_path, bool check_dns) { - if (!m_checkpoints.load_checkpoints_from_json(file_path)) + if (!cryptonote::load_checkpoints_from_json(m_checkpoints, file_path)) { - return false; + return false; } // if we're checking both dns and json, load checkpoints from dns. // if we're not hard-enforcing dns checkpoints, handle accordingly if (m_enforce_dns_checkpoints && check_dns) { - if (!m_checkpoints.load_checkpoints_from_dns()) + if (!cryptonote::load_checkpoints_from_dns(m_checkpoints)) { return false; } @@ -2877,7 +2851,7 @@ bool Blockchain::update_checkpoints(const std::string& file_path, bool check_dns else if (check_dns) { checkpoints dns_points; - dns_points.load_checkpoints_from_dns(); + cryptonote::load_checkpoints_from_dns(dns_points); if (m_checkpoints.check_for_conflicts(dns_points)) { check_against_checkpoints(dns_points, false); @@ -2904,8 +2878,6 @@ void Blockchain::block_longhash_worker(const uint64_t height, const std::vector< TIME_MEASURE_START(t); slow_hash_allocate_state(); - //FIXME: height should be changing here, as get_block_longhash expects - // the height of the block passed to it for (const auto & block : blocks) { crypto::hash id = get_block_hash(block); @@ -2961,7 +2933,6 @@ bool Blockchain::cleanup_handle_incoming_blocks(bool force_sync) } //------------------------------------------------------------------ -//FIXME: unused parameter txs void Blockchain::output_scan_worker(const uint64_t amount, const std::vector<uint64_t> &offsets, std::vector<output_data_t> &outputs, std::unordered_map<crypto::hash, cryptonote::transaction> &txs) const { try diff --git a/src/cryptonote_core/blockchain.h b/src/cryptonote_core/blockchain.h index 94def1aa9..ab2c8f9e8 100644 --- a/src/cryptonote_core/blockchain.h +++ b/src/cryptonote_core/blockchain.h @@ -60,14 +60,11 @@ namespace cryptonote class tx_memory_pool; struct test_options; - /** Declares ways in which the BlockchainDB backend should be told to sync - * - */ enum blockchain_db_sync_mode { - db_sync, //!< handle syncing calls instead of the backing db, synchronously - db_async, //!< handle syncing calls instead of the backing db, asynchronously - db_nosync //!< Leave syncing up to the backing db (safest, but slowest because of disk I/O) + db_sync, + db_async, + db_nosync }; /************************************************************************/ @@ -76,9 +73,6 @@ namespace cryptonote class Blockchain { public: - /** - * @brief Now-defunct (TODO: remove) struct from in-memory blockchain - */ struct transaction_chain_entry { transaction tx; @@ -87,697 +81,127 @@ namespace cryptonote std::vector<uint64_t> m_global_output_indexes; }; - /** - * @brief container for passing a block and metadata about it on the blockchain - */ struct block_extended_info { - block bl; //!< the block - uint64_t height; //!< the height of the block in the blockchain - size_t block_cumulative_size; //!< the size (in bytes) of the block - difficulty_type cumulative_difficulty; //!< the accumulated difficulty after that block - uint64_t already_generated_coins; //!< the total coins minted after that block + block bl; + uint64_t height; + size_t block_cumulative_size; + difficulty_type cumulative_difficulty; + uint64_t already_generated_coins; }; - /** - * @brief Blockchain constructor - * - * @param tx_pool a reference to the transaction pool to be kept by the Blockchain - */ Blockchain(tx_memory_pool& tx_pool); - /** - * @brief Initialize the Blockchain state - * - * @param db a pointer to the backing store to use for the blockchain - * @param testnet true if on testnet, else false - * @param test_options test parameters - * - * @return true on success, false if any initialization steps fail - */ bool init(BlockchainDB* db, const bool testnet = false, const cryptonote::test_options *test_options = NULL); - - /** - * @brief Initialize the Blockchain state - * - * @param db a pointer to the backing store to use for the blockchain - * @param hf a structure containing hardfork information - * @param testnet true if on testnet, else false - * - * @return true on success, false if any initialization steps fail - */ bool init(BlockchainDB* db, HardFork*& hf, const bool testnet = false); - - /** - * @brief Uninitializes the blockchain state - * - * Saves to disk any state that needs to be maintained - * - * @return true on success, false if any uninitialization steps fail - */ bool deinit(); - /** - * @brief assign a set of blockchain checkpoint hashes - * - * @param chk_pts the set of checkpoints to assign - */ void set_checkpoints(checkpoints&& chk_pts) { m_checkpoints = chk_pts; } - /** - * @brief get blocks and transactions from blocks based on start height and count - * - * @param start_offset the height on the blockchain to start at - * @param count the number of blocks to get, if there are as many after start_offset - * @param blocks return-by-reference container to put result blocks in - * @param txs return-by-reference container to put result transactions in - * - * @return false if start_offset > blockchain height, else true - */ + //bool push_new_block(); bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks, std::list<transaction>& txs) const; - - /** - * @brief get blocks from blocks based on start height and count - * - * @param start_offset the height on the blockchain to start at - * @param count the number of blocks to get, if there are as many after start_offset - * @param blocks return-by-reference container to put result blocks in - * - * @return false if start_offset > blockchain height, else true - */ bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks) const; - - /** - * @brief compiles a list of all blocks stored as alternative chains - * - * @param blocks return-by-reference container to put result blocks in - * - * @return true - */ bool get_alternative_blocks(std::list<block>& blocks) const; - - /** - * @brief returns the number of alternative blocks stored - * - * @return the number of alternative blocks stored - */ size_t get_alternative_blocks_count() const; - - /** - * @brief gets a block's hash given a height - * - * @param height the height of the block - * - * @return the hash of the block at the requested height, or a zeroed hash if there is no such block - */ crypto::hash get_block_id_by_height(uint64_t height) const; - - /** - * @brief gets the block with a given hash - * - * @param h the hash to look for - * @param blk return-by-reference variable to put result block in - * - * @return true if the block was found, else false - */ bool get_block_by_hash(const crypto::hash &h, block &blk) const; - - /** - * @brief get all block hashes (main chain, alt chains, and invalid blocks) - * - * @param main return-by-reference container to put result main chain blocks' hashes in - * @param alt return-by-reference container to put result alt chain blocks' hashes in - * @param invalid return-by-reference container to put result invalid blocks' hashes in - */ void get_all_known_block_ids(std::list<crypto::hash> &main, std::list<crypto::hash> &alt, std::list<crypto::hash> &invalid) const; - - /** - * @brief performs some preprocessing on a group of incoming blocks to speed up verification - * - * @param blocks a list of incoming blocks - * - * @return false on erroneous blocks, else true - */ bool prepare_handle_incoming_blocks(const std::list<block_complete_entry> &blocks); - - /** - * @brief incoming blocks post-processing, cleanup, and disk sync - * - * @param force_sync if true, and Blockchain is handling syncing to disk, always sync - * - * @return true - */ bool cleanup_handle_incoming_blocks(bool force_sync = false); - /** - * @brief search the blockchain for a transaction by hash - * - * @param id the hash to search for - * - * @return true if the tx exists, else false - */ bool have_tx(const crypto::hash &id) const; - - /** - * @brief check if any key image in a transaction has already been spent - * - * @param tx the transaction to check - * - * @return true if any key image is already spent in the blockchain, else false - */ bool have_tx_keyimges_as_spent(const transaction &tx) const; - - /** - * @brief check if a key image is already spent on the blockchain - * - * Whenever a transaction output is used as an input for another transaction - * (a true input, not just one of a mixing set), a key image is generated - * and stored in the transaction in order to prevent double spending. If - * this key image is seen again, the transaction using it is rejected. - * - * @param key_im the key image to search for - * - * @return true if the key image is already spent in the blockchain, else false - */ bool have_tx_keyimg_as_spent(const crypto::key_image &key_im) const; - /** - * @brief get the current height of the blockchain - * - * @return the height - */ uint64_t get_current_blockchain_height() const; - - /** - * @brief get the hash of the most recent block on the blockchain - * - * @return the hash - */ crypto::hash get_tail_id() const; - - /** - * @brief get the height and hash of the most recent block on the blockchain - * - * @param height return-by-reference variable to store the height in - * - * @return the hash - */ crypto::hash get_tail_id(uint64_t& height) const; - - /** - * @brief returns the difficulty target the next block to be added must meet - * - * @return the target - */ difficulty_type get_difficulty_for_next_block(); - - /** - * @brief adds a block to the blockchain - * - * Adds a new block to the blockchain. If the block's parent is not the - * current top of the blockchain, the block may be added to an alternate - * chain. If the block does not belong, is already in the blockchain - * or an alternate chain, or is invalid, return false. - * - * @param bl_ the block to be added - * @param bvc metadata about the block addition's success/failure - * - * @return true on successful addition to the blockchain, else false - */ bool add_new_block(const block& bl_, block_verification_context& bvc); - - /** - * @brief clears the blockchain and starts a new one - * - * @param b the first block in the new chain (the genesis block) - * - * @return true on success, else false - */ bool reset_and_set_genesis_block(const block& b); - - /** - * @brief creates a new block to mine against - * - * @param b return-by-reference block to be filled in - * @param miner_address address new coins for the block will go to - * @param di return-by-reference tells the miner what the difficulty target is - * @param height return-by-reference tells the miner what height it's mining against - * @param ex_nonce extra data to be added to the miner transaction's extra - * - * @return true if block template filled in successfully, else false - */ bool create_block_template(block& b, const account_public_address& miner_address, difficulty_type& di, uint64_t& height, const blobdata& ex_nonce); - - /** - * @brief checks if a block is known about with a given hash - * - * This function checks the main chain, alternate chains, and invalid blocks - * for a block with the given hash - * - * @param id the hash to search for - * - * @return true if the block is known, else false - */ bool have_block(const crypto::hash& id) const; - - /** - * @brief gets the total number of transactions on the main chain - * - * @return the number of transactions on the main chain - */ size_t get_total_transactions() const; - - /** - * @brief gets the hashes for a subset of the blockchain - * - * puts into list <ids> a list of hashes representing certain blocks - * from the blockchain in reverse chronological order - * - * the blocks chosen, at the time of this writing, are: - * the most recent 11 - * powers of 2 less recent from there, so 13, 17, 25, etc... - * - * @param ids return-by-reference list to put the resulting hashes in - * - * @return true - */ bool get_short_chain_history(std::list<crypto::hash>& ids) const; - - /** - * @brief get recent block hashes for a foreign chain - * - * Find the split point between us and foreign blockchain and return - * (by reference) the most recent common block hash along with up to - * BLOCKS_IDS_SYNCHRONIZING_DEFAULT_COUNT additional (more recent) hashes. - * - * @param qblock_ids the foreign chain's "short history" (see get_short_chain_history) - * @param resp return-by-reference the split height and subsequent blocks' hashes - * - * @return true if a block found in common, else false - */ bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const; - - /** - * @brief find the most recent common point between ours and a foreign chain - * - * This function takes a list of block hashes from another node - * on the network to find where the split point is between us and them. - * This is used to see what to send another node that needs to sync. - * - * @param qblock_ids the foreign chain's "short history" (see get_short_chain_history) - * @param starter_offset return-by-reference the most recent common block's height - * - * @return true if a block found in common, else false - */ bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, uint64_t& starter_offset) const; - - /** - * @brief get recent blocks for a foreign chain - * - * This function gets recent blocks relative to a foreign chain, starting either at - * a requested height or whatever height is the most recent ours and the foreign - * chain have in common. - * - * @param req_start_block if non-zero, specifies a start point (otherwise find most recent commonality) - * @param qblock_ids the foreign chain's "short history" (see get_short_chain_history) - * @param blocks return-by-reference the blocks and their transactions - * @param total_height return-by-reference our current blockchain height - * @param start_height return-by-reference the height of the first block returned - * @param max_count the max number of blocks to get - * - * @return true if a block found in common or req_start_block specified, else false - */ bool find_blockchain_supplement(const uint64_t req_start_block, const std::list<crypto::hash>& qblock_ids, std::list<std::pair<block, std::list<transaction> > >& blocks, uint64_t& total_height, uint64_t& start_height, size_t max_count) const; - - /** - * @brief retrieves a set of blocks and their transactions, and possibly other transactions - * - * the request object encapsulates a list of block hashes and a (possibly empty) list of - * transaction hashes. for each block hash, the block is fetched along with all of that - * block's transactions. Any transactions requested separately are fetched afterwards. - * - * @param arg the request - * @param rsp return-by-reference the response to fill in - * - * @return true unless any blocks or transactions are missing - */ bool handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp); - - /** - * @brief gets random outputs to mix with - * - * This function takes an RPC request for outputs to mix with - * and creates an RPC response with the resultant output indices. - * - * Outputs to mix with are randomly selected from the utxo set - * for each output amount in the request. - * - * @param req the output amounts and number of mixins to select - * @param res return-by-reference the resultant output indices - * - * @return true - */ + bool handle_get_objects(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res); bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const; - - /** - * @brief gets the global indices for outputs from a given transaction - * - * This function gets the global indices for all outputs belonging - * to a specific transaction. - * - * @param tx_id the hash of the transaction to fetch indices for - * @param indexs return-by-reference the global indices for the transaction's outputs - * - * @return false if the transaction does not exist, or if no indices are found, otherwise true - */ bool get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs) const; - - /** - * @brief stores the blockchain - * - * If Blockchain is handling storing of the blockchain (rather than BlockchainDB), - * this initiates a blockchain save. - * - * @return true unless saving the blockchain fails - */ bool store_blockchain(); - /** - * @brief validates a transaction's inputs - * - * validates a transaction's inputs as correctly used and not previously - * spent. also returns the hash and height of the most recent block - * which contains an output that was used as an input to the transaction. - * - * @param tx the transaction to validate - * @param pmax_used_block_height return-by-reference block height of most recent input - * @param max_used_block_id return-by-reference block hash of most recent input - * @param kept_by_block whether or not the transaction is from a previously-verified block - * - * @return false if any input is invalid, otherwise true - */ bool check_tx_inputs(const transaction& tx, uint64_t& pmax_used_block_height, crypto::hash& max_used_block_id, bool kept_by_block = false); - - /** - * @brief check that a transaction's outputs conform to current standards - * - * This function checks, for example at the time of this writing, that - * each output is of the form a * 10^b (phrased differently, that if - * written out would have only one non-zero digit in base 10). - * - * @param tx the transaction to check the outputs of - * - * @return false if any outputs do not conform, otherwise true - */ bool check_tx_outputs(const transaction& tx); - - /** - * @brief gets the blocksize limit based on recent blocks - * - * @return the limit - */ uint64_t get_current_cumulative_blocksize_limit() const; - - /** - * @brief checks if the blockchain is currently being stored - * - * Note: this should be meaningless in cases where Blockchain is not - * directly managing saving the blockchain to disk. - * - * @return true if Blockchain is having the chain stored currently, else false - */ bool is_storing_blockchain()const{return m_is_blockchain_storing;} - - /** - * @brief gets the difficulty of the block with a given height - * - * @param i the height - * - * @return the difficulty - */ uint64_t block_difficulty(uint64_t i) const; - /** - * @brief gets blocks based on a list of block hashes - * - * @tparam t_ids_container a standard-iterable container - * @tparam t_blocks_container a standard-iterable container - * @tparam t_missed_container a standard-iterable container - * @param block_ids a container of block hashes for which to get the corresponding blocks - * @param blocks return-by-reference a container to store result blocks in - * @param missed_bs return-by-reference a container to store missed blocks in - * - * @return false if an unexpected exception occurs, else true - */ template<class t_ids_container, class t_blocks_container, class t_missed_container> bool get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs) const; - /** - * @brief gets transactions based on a list of transaction hashes - * - * @tparam t_ids_container a standard-iterable container - * @tparam t_tx_container a standard-iterable container - * @tparam t_missed_container a standard-iterable container - * @param txs_ids a container of hashes for which to get the corresponding transactions - * @param txs return-by-reference a container to store result transactions in - * @param missed_txs return-by-reference a container to store missed transactions in - * - * @return false if an unexpected exception occurs, else true - */ template<class t_ids_container, class t_tx_container, class t_missed_container> bool get_transactions(const t_ids_container& txs_ids, t_tx_container& txs, t_missed_container& missed_txs) const; - //debug functions - - /** - * @brief prints data about a snippet of the blockchain - * - * if start_index is greater than the blockchain height, do nothing - * - * @param start_index height on chain to start at - * @param end_index height on chain to end at - */ void print_blockchain(uint64_t start_index, uint64_t end_index) const; - - /** - * @brief prints every block's hash - * - * WARNING: This function will absolutely crush a terminal in prints, so - * it is recommended to redirect this output to a log file (or null sink - * if a log file is already set up, as should be the default) - */ void print_blockchain_index() const; - - /** - * @brief currently does nothing, candidate for removal - * - * @param file - */ void print_blockchain_outs(const std::string& file) const; - /** - * @brief check the blockchain against a set of checkpoints - * - * If a block fails a checkpoint and enforce is enabled, the blockchain - * will be rolled back to two blocks prior to that block. If enforce - * is disabled, as is currently the default case with DNS-based checkpoints, - * an error will be printed to the user but no other action will be taken. - * - * @param points the checkpoints to check against - * @param enforce whether or not to take action on failure - */ void check_against_checkpoints(const checkpoints& points, bool enforce); - - /** - * @brief configure whether or not to enforce DNS-based checkpoints - * - * @param enforce the new enforcement setting - */ void set_enforce_dns_checkpoints(bool enforce); - - /** - * @brief loads new checkpoints from a file and optionally from DNS - * - * @param file_path the path of the file to look for and load checkpoints from - * @param check_dns whether or not to check for new DNS-based checkpoints - * - * @return false if any enforced checkpoint type fails to load, otherwise true - */ bool update_checkpoints(const std::string& file_path, bool check_dns); - // user options, must be called before calling init() - - //FIXME: parameter names don't match function definition in .cpp file - /** - * @brief sets various performance options - * - * @param block_threads max number of threads when preparing blocks for addition - * @param blocks_per_sync number of blocks to cache before syncing to database - * @param sync_mode the ::blockchain_db_sync_mode to use - * @param fast_sync sync using built-in block hashes as trusted - */ void set_user_options(uint64_t block_threads, uint64_t blocks_per_sync, blockchain_db_sync_mode sync_mode, bool fast_sync); - /** - * @brief set whether or not to show/print time statistics - * - * @param stats the new time stats setting - */ void set_show_time_stats(bool stats) { m_show_time_stats = stats; } - /** - * @brief gets the hardfork voting state object - * - * @return the HardFork object - */ HardFork::State get_hard_fork_state() const; - - /** - * @brief gets the current hardfork version in use/voted for - * - * @return the version - */ uint8_t get_current_hard_fork_version() const { return m_hardfork->get_current_version(); } - - /** - * @brief returns the newest hardfork version known to the blockchain - * - * @return the version - */ uint8_t get_ideal_hard_fork_version() const { return m_hardfork->get_ideal_version(); } - - /** - * @brief returns the newest hardfork version voted to be enabled - * as of a certain height - * - * @param height the height for which to check version info - * - * @return the version - */ uint8_t get_ideal_hard_fork_version(uint64_t height) const { return m_hardfork->get_ideal_version(height); } - /** - * @brief get information about hardfork voting for a version - * - * @param version the version in question - * @param window the size of the voting window - * @param votes the number of votes to enable <version> - * @param threshold the number of votes required to enable <version> - * @param earliest_height the earliest height at which <version> is allowed - * @param voting which version this node is voting for/using - * - * @return whether the version queried is enabled - */ bool get_hard_fork_voting_info(uint8_t version, uint32_t &window, uint32_t &votes, uint32_t &threshold, uint64_t &earliest_height, uint8_t &voting) const; - /** - * @brief remove transactions from the transaction pool (if present) - * - * @param txids a list of hashes of transactions to be removed - * - * @return false if any removals fail, otherwise true - */ bool flush_txes_from_pool(const std::list<crypto::hash> &txids); - /** - * @brief perform a check on all key images in the blockchain - * - * @param std::function the check to perform, pass/fail - * - * @return false if any key image fails the check, otherwise true - */ bool for_all_key_images(std::function<bool(const crypto::key_image&)>) const; - - /** - * @brief perform a check on all blocks in the blockchain - * - * @param std::function the check to perform, pass/fail - * - * @return false if any block fails the check, otherwise true - */ bool for_all_blocks(std::function<bool(uint64_t, const crypto::hash&, const block&)>) const; - - /** - * @brief perform a check on all transactions in the blockchain - * - * @param std::function the check to perform, pass/fail - * - * @return false if any transaction fails the check, otherwise true - */ bool for_all_transactions(std::function<bool(const crypto::hash&, const cryptonote::transaction&)>) const; - - /** - * @brief perform a check on all outputs in the blockchain - * - * @param std::function the check to perform, pass/fail - * - * @return false if any output fails the check, otherwise true - */ bool for_all_outputs(std::function<bool(uint64_t amount, const crypto::hash &tx_hash, size_t tx_idx)>) const; - /** - * @brief get a reference to the BlockchainDB in use by Blockchain - * - * @return a reference to the BlockchainDB instance - */ BlockchainDB& get_db() { return *m_db; } - /** - * @brief get a number of outputs of a specific amount - * - * @param amount the amount - * @param offsets the indices (indexed to the amount) of the outputs - * @param outputs return-by-reference the outputs collected - * @param txs unused, candidate for removal - */ void output_scan_worker(const uint64_t amount,const std::vector<uint64_t> &offsets, std::vector<output_data_t> &outputs, std::unordered_map<crypto::hash, cryptonote::transaction> &txs) const; - /** - * @brief computes the "short" and "long" hashes for a set of blocks - * - * @param height the height of the first block - * @param blocks the blocks to be hashed - * @param map return-by-reference the hashes for each block - */ void block_longhash_worker(const uint64_t height, const std::vector<block> &blocks, std::unordered_map<crypto::hash, crypto::hash> &map) const; private: - - // TODO: evaluate whether or not each of these typedefs are left over from blockchain_storage typedef std::unordered_map<crypto::hash, size_t> blocks_by_id_index; - typedef std::unordered_map<crypto::hash, transaction_chain_entry> transactions_container; - typedef std::unordered_set<crypto::key_image> key_images_container; - typedef std::vector<block_extended_info> blocks_container; - typedef std::unordered_map<crypto::hash, block_extended_info> blocks_ext_by_hash; - typedef std::unordered_map<crypto::hash, block> blocks_by_hash; - typedef std::map<uint64_t, std::vector<std::pair<crypto::hash, size_t>>> outputs_container; //crypto::hash - tx hash, size_t - index of out in transaction - BlockchainDB* m_db; tx_memory_pool& m_tx_pool; - mutable epee::critical_section m_blockchain_lock; // TODO: add here reader/writer lock // main chain transactions_container m_transactions; size_t m_current_block_cumul_sz_limit; - // metadata containers std::unordered_map<crypto::hash, std::unordered_map<crypto::key_image, std::vector<output_data_t>>> m_scan_table; std::unordered_map<crypto::hash, std::pair<bool, uint64_t>> m_check_tx_inputs_table; std::unordered_map<crypto::hash, crypto::hash> m_blocks_longhash_table; @@ -819,323 +243,39 @@ namespace cryptonote bool m_testnet; - /** - * @brief collects the keys for all outputs being "spent" as an input - * - * This function makes sure that each "input" in an input (mixins) exists - * and collects the public key for each from the transaction it was included in - * via the visitor passed to it. - * - * If pmax_related_block_height is not NULL, its value is set to the height - * of the most recent block which contains an output used in the input set - * - * @tparam visitor_t a class encapsulating tx is unlocked and collect tx key - * @param tx_in_to_key a transaction input instance - * @param vis an instance of the visitor to use - * @param tx_prefix_hash the hash of the associated transaction_prefix - * @param pmax_related_block_height return-by-pointer the height of the most recent block in the input set - * - * @return false if any keys are not found or any inputs are not unlocked, otherwise true - */ template<class visitor_t> inline bool scan_outputkeys_for_indexes(const txin_to_key& tx_in_to_key, visitor_t &vis, const crypto::hash &tx_prefix_hash, uint64_t* pmax_related_block_height = NULL) const; - - /** - * @brief collect output public keys of a transaction input set - * - * This function locates all outputs associated with a given input set (mixins) - * and validates that they exist and are usable - * (unlocked, unspent is checked elsewhere). - * - * If pmax_related_block_height is not NULL, its value is set to the height - * of the most recent block which contains an output used in the input set - * - * @param txin the transaction input - * @param tx_prefix_hash the transaction prefix hash, for caching organization - * @param sig the input signature - * @param output_keys return-by-reference the public keys of the outputs in the input set - * @param pmax_related_block_height return-by-pointer the height of the most recent block in the input set - * - * @return false if any output is not yet unlocked, or is missing, otherwise true - */ bool check_tx_input(const txin_to_key& txin, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig, std::vector<crypto::public_key> &output_keys, uint64_t* pmax_related_block_height); - - /** - * @brief validate a transaction's inputs and their keys - * - * This function validates transaction inputs and their keys. Previously - * it also performed double spend checking, but that has been moved to its - * own function. - * - * If pmax_related_block_height is not NULL, its value is set to the height - * of the most recent block which contains an output used in any input set - * - * Currently this function calls ring signature validation for each - * transaction. - * - * @param tx the transaction to validate - * @param pmax_related_block_height return-by-pointer the height of the most recent block in the input set - * - * @return false if any validation step fails, otherwise true - */ bool check_tx_inputs(const transaction& tx, uint64_t* pmax_used_block_height = NULL); - /** - * @brief performs a blockchain reorganization according to the longest chain rule - * - * This function aggregates all the actions necessary to switch to a - * newly-longer chain. If any step in the reorganization process fails, - * the blockchain is reverted to its previous state. - * - * @param alt_chain the chain to switch to - * @param discard_disconnected_chain whether or not to keep the old chain as an alternate - * - * @return false if the reorganization fails, otherwise true - */ bool switch_to_alternative_blockchain(std::list<blocks_ext_by_hash::iterator>& alt_chain, bool discard_disconnected_chain); - - /** - * @brief removes the most recent block from the blockchain - * - * @return the block removed - */ block pop_block_from_blockchain(); - /** - * @brief validate and add a new block to the end of the blockchain - * - * This function is merely a convenience wrapper around the other - * of the same name. This one passes the block's hash to the other - * as well as the block and verification context. - * - * @param bl the block to be added - * @param bvc metadata concerning the block's validity - * - * @return true if the block was added successfully, otherwise false - */ bool handle_block_to_main_chain(const block& bl, block_verification_context& bvc); - - /** - * @brief validate and add a new block to the end of the blockchain - * - * When a block is given to Blockchain to be added to the blockchain, it - * is passed here if it is determined to belong at the end of the current - * chain. - * - * @param bl the block to be added - * @param id the hash of the block - * @param bvc metadata concerning the block's validity - * - * @return true if the block was added successfully, otherwise false - */ bool handle_block_to_main_chain(const block& bl, const crypto::hash& id, block_verification_context& bvc); - - /** - * @brief validate and add a new block to an alternate blockchain - * - * If a block to be added does not belong to the main chain, but there - * is an alternate chain to which it should be added, that is handled - * here. - * - * @param b the block to be added - * @param id the hash of the block - * @param bvc metadata concerning the block's validity - * - * @return true if the block was added successfully, otherwise false - */ bool handle_alternative_block(const block& b, const crypto::hash& id, block_verification_context& bvc); - - /** - * @brief gets the difficulty requirement for a new block on an alternate chain - * - * @param alt_chain the chain to be added to - * @param bei the block being added (and metadata, see ::block_extended_info) - * - * @return the difficulty requirement - */ difficulty_type get_next_difficulty_for_alternative_chain(const std::list<blocks_ext_by_hash::iterator>& alt_chain, block_extended_info& bei) const; - - /** - * @brief sanity checks a miner transaction before validating an entire block - * - * This function merely checks basic things like the structure of the miner - * transaction, the unlock time, and that the amount doesn't overflow. - * - * @param b the block containing the miner transaction - * @param height the height at which the block will be added - * - * @return false if anything is found wrong with the miner transaction, otherwise true - */ bool prevalidate_miner_transaction(const block& b, uint64_t height); - - /** - * @brief validates a miner (coinbase) transaction - * - * This function makes sure that the miner calculated his reward correctly - * and that his miner transaction totals reward + fee. - * - * @param b the block containing the miner transaction to be validated - * @param cumulative_block_size the block's size - * @param fee the total fees collected in the block - * @param base_reward return-by-reference the new block's generated coins - * @param already_generated_coins the amount of currency generated prior to this block - * @param partial_block_reward return-by-reference true if miner accepted only partial reward - * - * @return false if anything is found wrong with the miner transaction, otherwise true - */ bool validate_miner_transaction(const block& b, size_t cumulative_block_size, uint64_t fee, uint64_t& base_reward, uint64_t already_generated_coins, bool &partial_block_reward); - - /** - * @brief reverts the blockchain to its previous state following a failed switch - * - * If Blockchain fails to switch to an alternate chain when it means - * to do so, this function reverts the blockchain to how it was before - * the attempted switch. - * - * @param original_chain the chain to switch back to - * @param rollback_height the height to revert to before appending the original chain - * - * @return false if something goes wrong with reverting (very bad), otherwise true - */ + bool validate_transaction(const block& b, uint64_t height, const transaction& tx); bool rollback_blockchain_switching(std::list<block>& original_chain, uint64_t rollback_height); - - /** - * @brief gets recent block sizes for median calculation - * - * get the block sizes of the last <count> blocks, and return by reference <sz>. - * - * @param sz return-by-reference the list of sizes - * @param count the number of blocks to get sizes for - */ + bool add_transaction_from_block(const transaction& tx, const crypto::hash& tx_id, const crypto::hash& bl_id, uint64_t bl_height); + bool push_transaction_to_global_outs_index(const transaction& tx, const crypto::hash& tx_id, std::vector<uint64_t>& global_indexes); + bool pop_transaction_from_global_index(const transaction& tx, const crypto::hash& tx_id); void get_last_n_blocks_sizes(std::vector<size_t>& sz, size_t count) const; - - /** - * @brief adds the given output to the requested set of random outputs - * - * @param result_outs return-by-reference the set the output is to be added to - * @param amount the output amount - * @param i the output index (indexed to amount) - */ void add_out_to_get_random_outs(COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::outs_for_amount& result_outs, uint64_t amount, size_t i) const; - - /** - * @brief checks if a transaction is unlocked (its outputs spendable) - * - * This function checks to see if a transaction is unlocked. - * unlock_time is either a block index or a unix time. - * - * @param unlock_time the unlock parameter (height or time) - * - * @return true if spendable, otherwise false - */ bool is_tx_spendtime_unlocked(uint64_t unlock_time) const; - - /** - * @brief stores an invalid block in a separate container - * - * Storing invalid blocks allows quick dismissal of the same block - * if it is seen again. - * - * @param bl the invalid block - * @param h the block's hash - * - * @return false if the block cannot be stored for some reason, otherwise true - */ bool add_block_as_invalid(const block& bl, const crypto::hash& h); - - /** - * @brief stores an invalid block in a separate container - * - * Storing invalid blocks allows quick dismissal of the same block - * if it is seen again. - * - * @param bei the invalid block (see ::block_extended_info) - * @param h the block's hash - * - * @return false if the block cannot be stored for some reason, otherwise true - */ bool add_block_as_invalid(const block_extended_info& bei, const crypto::hash& h); - - /** - * @brief checks a block's timestamp - * - * This function grabs the timestamps from the most recent <n> blocks, - * where n = BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW. If there are not those many - * blocks in the blockchain, the timestap is assumed to be valid. If there - * are, this function returns: - * true if the block's timestamp is not less than the timestamp of the - * median of the selected blocks - * false otherwise - * - * @param b the block to be checked - * - * @return true if the block's timestamp is valid, otherwise false - */ bool check_block_timestamp(const block& b) const; - - /** - * @brief checks a block's timestamp - * - * If the block is not more recent than the median of the recent - * timestamps passed here, it is considered invalid. - * - * @param timestamps a list of the most recent timestamps to check against - * @param b the block to be checked - * - * @return true if the block's timestamp is valid, otherwise false - */ bool check_block_timestamp(std::vector<uint64_t>& timestamps, const block& b) const; - - /** - * @brief get the "adjusted time" - * - * Currently this simply returns the current time according to the - * user's machine. - * - * @return the current time - */ uint64_t get_adjusted_time() const; - - /** - * @brief finish an alternate chain's timestamp window from the main chain - * - * for an alternate chain, get the timestamps from the main chain to complete - * the needed number of timestamps for the BLOCKCHAIN_TIMESTAMP_CHECK_WINDOW. - * - * @param start_height the alternate chain's attachment height to the main chain - * @param timestamps return-by-value the timestamps set to be populated - * - * @return true unless start_height is greater than the current blockchain height - */ bool complete_timestamps_vector(uint64_t start_height, std::vector<uint64_t>& timestamps); - - /** - * @brief calculate the block size limit for the next block to be added - * - * @return true - */ bool update_next_cumulative_size_limit(); void return_tx_to_pool(const std::vector<transaction> &txs); - /** - * @brief make sure a transaction isn't attempting a double-spend - * - * @param tx the transaction to check - * @param keys_this_block a cumulative list of spent keys for the current block - * - * @return false if a double spend was detected, otherwise true - */ bool check_for_double_spend(const transaction& tx, key_images_container& keys_this_block) const; - - /** - * @brief validates a transaction input's ring signature - * - * @param tx_prefix_hash the transaction prefix' hash - * @param key_image the key image generated from the true input - * @param pubkeys the public keys for each input in the ring signature - * @param sig the signature generated for each input in the ring signature - * @param result false if the ring signature is invalid, otherwise true - */ + void get_timestamp_and_difficulty(uint64_t ×tamp, difficulty_type &difficulty, const int offset) const; void check_ring_signature(const crypto::hash &tx_prefix_hash, const crypto::key_image &key_image, const std::vector<crypto::public_key> &pubkeys, const std::vector<crypto::signature> &sig, uint64_t &result); diff --git a/src/cryptonote_core/blockchain_storage.cpp b/src/cryptonote_core/blockchain_storage.cpp index a829b7cbe..e1b89f887 100644 --- a/src/cryptonote_core/blockchain_storage.cpp +++ b/src/cryptonote_core/blockchain_storage.cpp @@ -48,7 +48,7 @@ #include "common/boost_serialization_helper.h" #include "warnings.h" #include "crypto/hash.h" -#include "cryptonote_core/checkpoints.h" +#include "cryptonote_core/checkpoints_create.h" //#include "serialization/json_archive.h" #include "../../contrib/otshell_utils/utils.hpp" #include "../../src/p2p/data_logger.hpp" @@ -1854,7 +1854,7 @@ void blockchain_storage::check_against_checkpoints(const checkpoints& points, bo // with an existing checkpoint. bool blockchain_storage::update_checkpoints(const std::string& file_path, bool check_dns) { - if (!m_checkpoints.load_checkpoints_from_json(file_path)) + if (!cryptonote::load_checkpoints_from_json(m_checkpoints, file_path)) { return false; } @@ -1863,7 +1863,7 @@ bool blockchain_storage::update_checkpoints(const std::string& file_path, bool c // if we're not hard-enforcing dns checkpoints, handle accordingly if (m_enforce_dns_checkpoints && check_dns) { - if (!m_checkpoints.load_checkpoints_from_dns()) + if (!cryptonote::load_checkpoints_from_dns(m_checkpoints)) { return false; } @@ -1871,7 +1871,7 @@ bool blockchain_storage::update_checkpoints(const std::string& file_path, bool c else if (check_dns) { checkpoints dns_points; - dns_points.load_checkpoints_from_dns(m_testnet); + cryptonote::load_checkpoints_from_dns(dns_points, m_testnet); if (m_checkpoints.check_for_conflicts(dns_points)) { check_against_checkpoints(dns_points, false); diff --git a/src/cryptonote_core/checkpoints.cpp b/src/cryptonote_core/checkpoints.cpp index c038a4802..24d066dae 100644 --- a/src/cryptonote_core/checkpoints.cpp +++ b/src/cryptonote_core/checkpoints.cpp @@ -1,21 +1,21 @@ // Copyright (c) 2014-2016, The Monero Project -// +// // All rights reserved. -// +// // Redistribution and use in source and binary forms, with or without modification, are // permitted provided that the following conditions are met: -// +// // 1. Redistributions of source code must retain the above copyright notice, this list of // conditions and the following disclaimer. -// +// // 2. Redistributions in binary form must reproduce the above copyright notice, this list // of conditions and the following disclaimer in the documentation and/or other // materials provided with the distribution. -// +// // 3. Neither the name of the copyright holder nor the names of its contributors may be // used to endorse or promote products derived from this software without specific // prior written permission. -// +// // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL @@ -25,44 +25,14 @@ // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// +// // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers #include "include_base_utils.h" - using namespace epee; #include "checkpoints.h" -#include "common/dns_utils.h" -#include "include_base_utils.h" -#include <sstream> -#include <random> - -namespace -{ - bool dns_records_match(const std::vector<std::string>& a, const std::vector<std::string>& b) - { - if (a.size() != b.size()) return false; - - for (const auto& record_in_a : a) - { - bool ok = false; - for (const auto& record_in_b : b) - { - if (record_in_a == record_in_b) - { - ok = true; - break; - } - } - if (!ok) return false; - } - - return true; - } -} // anonymous namespace - namespace cryptonote { //--------------------------------------------------------------------------- @@ -114,7 +84,10 @@ namespace cryptonote return check_block(height, h, ignored); } //--------------------------------------------------------------------------- - //FIXME: is this the desired behavior? + // this basically says if the blockchain is smaller than the first + // checkpoint then alternate blocks are allowed. Alternatively, if the + // last checkpoint *before* the end of the current chain is also before + // the block to be added, then this is fine. bool checkpoints::is_alternative_block_allowed(uint64_t blockchain_height, uint64_t block_height) const { if (0 == block_height) @@ -155,206 +128,4 @@ namespace cryptonote } return true; } - - bool checkpoints::init_default_checkpoints() - { - ADD_CHECKPOINT(1, "771fbcd656ec1464d3a02ead5e18644030007a0fc664c0a964d30922821a8148"); - ADD_CHECKPOINT(10, "c0e3b387e47042f72d8ccdca88071ff96bff1ac7cde09ae113dbb7ad3fe92381"); - ADD_CHECKPOINT(100, "ac3e11ca545e57c49fca2b4e8c48c03c23be047c43e471e1394528b1f9f80b2d"); - ADD_CHECKPOINT(1000, "5acfc45acffd2b2e7345caf42fa02308c5793f15ec33946e969e829f40b03876"); - ADD_CHECKPOINT(10000, "c758b7c81f928be3295d45e230646de8b852ec96a821eac3fea4daf3fcac0ca2"); - ADD_CHECKPOINT(22231, "7cb10e29d67e1c069e6e11b17d30b809724255fee2f6868dc14cfc6ed44dfb25"); - ADD_CHECKPOINT(29556, "53c484a8ed91e4da621bb2fa88106dbde426fe90d7ef07b9c1e5127fb6f3a7f6"); - ADD_CHECKPOINT(50000, "0fe8758ab06a8b9cb35b7328fd4f757af530a5d37759f9d3e421023231f7b31c"); - ADD_CHECKPOINT(80000, "a62dcd7b536f22e003ebae8726e9e7276f63d594e264b6f0cd7aab27b66e75e3"); - ADD_CHECKPOINT(202612, "bbd604d2ba11ba27935e006ed39c9bfdd99b76bf4a50654bc1e1e61217962698"); - ADD_CHECKPOINT(202613, "e2aa337e78df1f98f462b3b1e560c6b914dec47b610698b7b7d1e3e86b6197c2"); - ADD_CHECKPOINT(202614, "c29e3dc37d8da3e72e506e31a213a58771b24450144305bcba9e70fa4d6ea6fb"); - ADD_CHECKPOINT(205000, "5d3d7a26e6dc7535e34f03def711daa8c263785f73ec1fadef8a45880fde8063"); - ADD_CHECKPOINT(220000, "9613f455933c00e3e33ac315cc6b455ee8aa0c567163836858c2d9caff111553"); - ADD_CHECKPOINT(230300, "bae7a80c46859db355556e3a9204a337ae8f24309926a1312323fdecf1920e61"); - ADD_CHECKPOINT(230700, "93e631240ceac831da1aebfc5dac8f722c430463024763ebafa888796ceaeedf"); - ADD_CHECKPOINT(231350, "b5add137199b820e1ea26640e5c3e121fd85faa86a1e39cf7e6cc097bdeb1131"); - ADD_CHECKPOINT(232150, "955de8e6b6508af2c24f7334f97beeea651d78e9ade3ab18fec3763be3201aa8"); - ADD_CHECKPOINT(249380, "654fb0a81ce3e5caf7e3264a70f447d4bd07586c08fa50f6638cc54da0a52b2d"); - ADD_CHECKPOINT(460000, "75037a7aed3e765db96c75bcf908f59d690a5f3390baebb9edeafd336a1c4831"); - ADD_CHECKPOINT(500000, "2428f0dbe49796be05ed81b347f53e1f7f44aed0abf641446ec2b94cae066b02"); - ADD_CHECKPOINT(600000, "f5828ebf7d7d1cb61762c4dfe3ccf4ecab2e1aad23e8113668d981713b7a54c5"); - ADD_CHECKPOINT(700000, "12be9b3d210b93f574d2526abb9c1ab2a881b479131fd0d4f7dac93875f503cd"); - ADD_CHECKPOINT(825000, "56503f9ad766774b575be3aff73245e9d159be88132c93d1754764f28da2ff60"); - ADD_CHECKPOINT(900000, "d9958d0e7dcf91a5a7b11de225927bf7efc6eb26240315ce12372be902cc1337"); - ADD_CHECKPOINT(913193, "5292d5d56f6ba4de33a58d9a34d263e2cb3c6fee0aed2286fd4ac7f36d53c85f"); - - return true; - } - - bool checkpoints::load_checkpoints_from_json(const std::string json_hashfile_fullpath) - { - boost::system::error_code errcode; - if (! (boost::filesystem::exists(json_hashfile_fullpath, errcode))) - { - LOG_PRINT_L1("Blockchain checkpoints file not found"); - return true; - } - - LOG_PRINT_L1("Adding checkpoints from blockchain hashfile"); - - uint64_t prev_max_height = get_max_height(); - LOG_PRINT_L1("Hard-coded max checkpoint height is " << prev_max_height); - t_hash_json hashes; - epee::serialization::load_t_from_json_file(hashes, json_hashfile_fullpath); - for (std::vector<t_hashline>::const_iterator it = hashes.hashlines.begin(); it != hashes.hashlines.end(); ) - { - uint64_t height; - height = it->height; - if (height <= prev_max_height) { - LOG_PRINT_L1("ignoring checkpoint height " << height); - } else { - std::string blockhash = it->hash; - LOG_PRINT_L1("Adding checkpoint height " << height << ", hash=" << blockhash); - ADD_CHECKPOINT(height, blockhash); - } - ++it; - } - - return true; - } - - bool checkpoints::load_checkpoints_from_dns(bool testnet) - { - // All four MoneroPulse domains have DNSSEC on and valid - static const std::vector<std::string> dns_urls = { "checkpoints.moneropulse.se" - , "checkpoints.moneropulse.org" - , "checkpoints.moneropulse.net" - , "checkpoints.moneropulse.co" - }; - - static const std::vector<std::string> testnet_dns_urls = { "testpoints.moneropulse.se" - , "testpoints.moneropulse.org" - , "testpoints.moneropulse.net" - , "testpoints.moneropulse.co" - }; - - std::vector<std::vector<std::string> > records; - records.resize(dns_urls.size()); - - std::random_device rd; - std::mt19937 gen(rd()); - std::uniform_int_distribution<int> dis(0, dns_urls.size() - 1); - size_t first_index = dis(gen); - - bool avail, valid; - size_t cur_index = first_index; - do - { - std::string url; - if (testnet) - { - url = testnet_dns_urls[cur_index]; - } - else - { - url = dns_urls[cur_index]; - } - - records[cur_index] = tools::DNSResolver::instance().get_txt_record(url, avail, valid); - if (!avail) - { - records[cur_index].clear(); - LOG_PRINT_L2("DNSSEC not available for checkpoint update at URL: " << url << ", skipping."); - } - if (!valid) - { - records[cur_index].clear(); - LOG_PRINT_L2("DNSSEC validation failed for checkpoint update at URL: " << url << ", skipping."); - } - - cur_index++; - if (cur_index == dns_urls.size()) - { - cur_index = 0; - } - records[cur_index].clear(); - } while (cur_index != first_index); - - size_t num_valid_records = 0; - - for( const auto& record_set : records) - { - if (record_set.size() != 0) - { - num_valid_records++; - } - } - - if (num_valid_records < 2) - { - LOG_PRINT_L0("WARNING: no two valid MoneroPulse DNS checkpoint records were received"); - return true; - } - - int good_records_index = -1; - for (size_t i = 0; i < records.size() - 1; ++i) - { - if (records[i].size() == 0) continue; - - for (size_t j = i + 1; j < records.size(); ++j) - { - if (dns_records_match(records[i], records[j])) - { - good_records_index = i; - break; - } - } - if (good_records_index >= 0) break; - } - - if (good_records_index < 0) - { - LOG_PRINT_L0("WARNING: no two MoneroPulse DNS checkpoint records matched"); - return true; - } - - for (auto& record : records[good_records_index]) - { - auto pos = record.find(":"); - if (pos != std::string::npos) - { - uint64_t height; - crypto::hash hash; - - // parse the first part as uint64_t, - // if this fails move on to the next record - std::stringstream ss(record.substr(0, pos)); - if (!(ss >> height)) - { - continue; - } - - // parse the second part as crypto::hash, - // if this fails move on to the next record - std::string hashStr = record.substr(pos + 1); - if (!epee::string_tools::parse_tpod_from_hex_string(hashStr, hash)) - { - continue; - } - - ADD_CHECKPOINT(height, hashStr); - } - } - return true; - } - - bool checkpoints::load_new_checkpoints(const std::string json_hashfile_fullpath, bool testnet, bool dns) - { - bool result; - - result = load_checkpoints_from_json(json_hashfile_fullpath); - if (dns) - { - result &= load_checkpoints_from_dns(testnet); - } - - return result; - } } diff --git a/src/cryptonote_core/checkpoints.h b/src/cryptonote_core/checkpoints.h index 71727753e..00a53ec24 100644 --- a/src/cryptonote_core/checkpoints.h +++ b/src/cryptonote_core/checkpoints.h @@ -1,21 +1,21 @@ // Copyright (c) 2014-2016, The Monero Project -// +// // All rights reserved. -// +// // Redistribution and use in source and binary forms, with or without modification, are // permitted provided that the following conditions are met: -// +// // 1. Redistributions of source code must retain the above copyright notice, this list of // conditions and the following disclaimer. -// +// // 2. Redistributions in binary form must reproduce the above copyright notice, this list // of conditions and the following disclaimer in the documentation and/or other // materials provided with the distribution. -// +// // 3. Neither the name of the copyright holder nor the names of its contributors may be // used to endorse or promote products derived from this software without specific // prior written permission. -// +// // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY // EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF // MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL @@ -25,193 +25,30 @@ // INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, // STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF // THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -// +// // Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers #pragma once #include <map> #include <vector> #include "cryptonote_basic_impl.h" -#include "misc_log_ex.h" -#include "storages/portable_storage_template_helper.h" // epee json include - -#define ADD_CHECKPOINT(h, hash) CHECK_AND_ASSERT(add_checkpoint(h, hash), false); -#define JSON_HASH_FILE_NAME "checkpoints.json" namespace cryptonote { - /** - * @brief A container for blockchain checkpoints - * - * A checkpoint is a pre-defined hash for the block at a given height. - * Some of these are compiled-in, while others can be loaded at runtime - * either from a json file or via DNS from a checkpoint-hosting server. - */ class checkpoints { public: - - /** - * @brief default constructor - */ checkpoints(); - - /** - * @brief adds a checkpoint to the container - * - * @param height the height of the block the checkpoint is for - * @param hash_str the hash of the block, as a string - * - * @return false if parsing the hash fails, or if the height is a duplicate - * AND the existing checkpoint hash does not match the new one, - * otherwise returns true - */ bool add_checkpoint(uint64_t height, const std::string& hash_str); - - /** - * @brief checks if there is a checkpoint in the future - * - * This function checks if the height passed is lower than the highest - * checkpoint. - * - * @param height the height to check against - * - * @return false if no checkpoints, otherwise returns whether or not - * the height passed is lower than the highest checkpoint. - */ bool is_in_checkpoint_zone(uint64_t height) const; - - /** - * @brief checks if the given height and hash agree with the checkpoints - * - * This function checks if the given height and hash exist in the - * checkpoints container. If so, it returns whether or not the passed - * parameters match the stored values. - * - * @param height the height to be checked - * @param h the hash to be checked - * @param is_a_checkpoint return-by-reference if there is a checkpoint at the given height - * - * @return true if there is no checkpoint at the given height, - * true if the passed parameters match the stored checkpoint, - * false otherwise - */ - bool check_block(uint64_t height, const crypto::hash& h, bool& is_a_checkpoint) const; - - /** - * @overload - */ bool check_block(uint64_t height, const crypto::hash& h) const; - - /** - * @brief checks if alternate chain blocks should be kept for a given height - * - * this basically says if the blockchain is smaller than the first - * checkpoint then alternate blocks are allowed. Alternatively, if the - * last checkpoint *before* the end of the current chain is also before - * the block to be added, then this is fine. - * - * @param blockchain_height the current blockchain height - * @param block_height the height of the block to be added as alternate - * - * @return true if alternate blocks are allowed given the parameters, - * otherwise false - */ + bool check_block(uint64_t height, const crypto::hash& h, bool& is_a_checkpoint) const; bool is_alternative_block_allowed(uint64_t blockchain_height, uint64_t block_height) const; - - /** - * @brief gets the highest checkpoint height - * - * @return the height of the highest checkpoint - */ uint64_t get_max_height() const; - - /** - * @brief gets the checkpoints container - * - * @return a const reference to the checkpoints container - */ const std::map<uint64_t, crypto::hash>& get_points() const; - - /** - * @brief checks if our checkpoints container conflicts with another - * - * A conflict refers to a case where both checkpoint sets have a checkpoint - * for a specific height but their hashes for that height do not match. - * - * @param other the other checkpoints instance to check against - * - * @return false if any conflict is found, otherwise true - */ bool check_for_conflicts(const checkpoints& other) const; - - /** - * @brief loads the default main chain checkpoints - * - * @return true unless adding a checkpoint fails - */ - bool init_default_checkpoints(); - - /** - * @brief load new checkpoints - * - * Loads new checkpoints from the specified json file, as well as - * (optionally) from DNS. - * - * @param json_hashfile_fullpath path to the json checkpoints file - * @param testnet whether to load testnet checkpoints or mainnet - * @param dns whether or not to load DNS checkpoints - * - * @return true if loading successful and no conflicts - */ - bool load_new_checkpoints(const std::string json_hashfile_fullpath, bool testnet=false, bool dns=true); - - /** - * @brief load new checkpoints from json - * - * @param json_hashfile_fullpath path to the json checkpoints file - * - * @return true if loading successful and no conflicts - */ - bool load_checkpoints_from_json(const std::string json_hashfile_fullpath); - - /** - * @brief load new checkpoints from DNS - * - * @param testnet whether to load testnet checkpoints or mainnet - * - * @return true if loading successful and no conflicts - */ - bool load_checkpoints_from_dns(bool testnet = false); - private: - - - /** - * @brief struct for loading a checkpoint from json - */ - struct t_hashline - { - uint64_t height; //!< the height of the checkpoint - std::string hash; //!< the hash for the checkpoint - BEGIN_KV_SERIALIZE_MAP() - KV_SERIALIZE(height) - KV_SERIALIZE(hash) - END_KV_SERIALIZE_MAP() - }; - - /** - * @brief struct for loading many checkpoints from json - */ - struct t_hash_json { - std::vector<t_hashline> hashlines; //!< the checkpoint lines from the file - BEGIN_KV_SERIALIZE_MAP() - KV_SERIALIZE(hashlines) - END_KV_SERIALIZE_MAP() - }; - - std::map<uint64_t, crypto::hash> m_points; //!< the checkpoints container - + std::map<uint64_t, crypto::hash> m_points; }; } diff --git a/src/cryptonote_core/checkpoints_create.cpp b/src/cryptonote_core/checkpoints_create.cpp new file mode 100644 index 000000000..41f2321d5 --- /dev/null +++ b/src/cryptonote_core/checkpoints_create.cpp @@ -0,0 +1,280 @@ +// Copyright (c) 2014-2016, The Monero Project +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without modification, are +// permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, this list of +// conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, this list +// of conditions and the following disclaimer in the documentation and/or other +// materials provided with the distribution. +// +// 3. Neither the name of the copyright holder nor the names of its contributors may be +// used to endorse or promote products derived from this software without specific +// prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers + +#include "checkpoints_create.h" +#include "common/dns_utils.h" +#include "include_base_utils.h" +#include <sstream> +#include <random> +#include "storages/portable_storage_template_helper.h" // epee json include + +namespace +{ + bool dns_records_match(const std::vector<std::string>& a, const std::vector<std::string>& b) + { + if (a.size() != b.size()) return false; + + for (const auto& record_in_a : a) + { + bool ok = false; + for (const auto& record_in_b : b) + { + if (record_in_a == record_in_b) + { + ok = true; + break; + } + } + if (!ok) return false; + } + + return true; + } +} // anonymous namespace + +namespace cryptonote +{ + +struct t_hashline +{ + uint64_t height; + std::string hash; + BEGIN_KV_SERIALIZE_MAP() + KV_SERIALIZE(height) + KV_SERIALIZE(hash) + END_KV_SERIALIZE_MAP() +}; + +struct t_hash_json { + std::vector<t_hashline> hashlines; + BEGIN_KV_SERIALIZE_MAP() + KV_SERIALIZE(hashlines) + END_KV_SERIALIZE_MAP() +}; + +bool create_checkpoints(cryptonote::checkpoints& checkpoints) +{ + ADD_CHECKPOINT(1, "771fbcd656ec1464d3a02ead5e18644030007a0fc664c0a964d30922821a8148"); + ADD_CHECKPOINT(10, "c0e3b387e47042f72d8ccdca88071ff96bff1ac7cde09ae113dbb7ad3fe92381"); + ADD_CHECKPOINT(100, "ac3e11ca545e57c49fca2b4e8c48c03c23be047c43e471e1394528b1f9f80b2d"); + ADD_CHECKPOINT(1000, "5acfc45acffd2b2e7345caf42fa02308c5793f15ec33946e969e829f40b03876"); + ADD_CHECKPOINT(10000, "c758b7c81f928be3295d45e230646de8b852ec96a821eac3fea4daf3fcac0ca2"); + ADD_CHECKPOINT(22231, "7cb10e29d67e1c069e6e11b17d30b809724255fee2f6868dc14cfc6ed44dfb25"); + ADD_CHECKPOINT(29556, "53c484a8ed91e4da621bb2fa88106dbde426fe90d7ef07b9c1e5127fb6f3a7f6"); + ADD_CHECKPOINT(50000, "0fe8758ab06a8b9cb35b7328fd4f757af530a5d37759f9d3e421023231f7b31c"); + ADD_CHECKPOINT(80000, "a62dcd7b536f22e003ebae8726e9e7276f63d594e264b6f0cd7aab27b66e75e3"); + ADD_CHECKPOINT(202612, "bbd604d2ba11ba27935e006ed39c9bfdd99b76bf4a50654bc1e1e61217962698"); + ADD_CHECKPOINT(202613, "e2aa337e78df1f98f462b3b1e560c6b914dec47b610698b7b7d1e3e86b6197c2"); + ADD_CHECKPOINT(202614, "c29e3dc37d8da3e72e506e31a213a58771b24450144305bcba9e70fa4d6ea6fb"); + ADD_CHECKPOINT(205000, "5d3d7a26e6dc7535e34f03def711daa8c263785f73ec1fadef8a45880fde8063"); + ADD_CHECKPOINT(220000, "9613f455933c00e3e33ac315cc6b455ee8aa0c567163836858c2d9caff111553"); + ADD_CHECKPOINT(230300, "bae7a80c46859db355556e3a9204a337ae8f24309926a1312323fdecf1920e61"); + ADD_CHECKPOINT(230700, "93e631240ceac831da1aebfc5dac8f722c430463024763ebafa888796ceaeedf"); + ADD_CHECKPOINT(231350, "b5add137199b820e1ea26640e5c3e121fd85faa86a1e39cf7e6cc097bdeb1131"); + ADD_CHECKPOINT(232150, "955de8e6b6508af2c24f7334f97beeea651d78e9ade3ab18fec3763be3201aa8"); + ADD_CHECKPOINT(249380, "654fb0a81ce3e5caf7e3264a70f447d4bd07586c08fa50f6638cc54da0a52b2d"); + ADD_CHECKPOINT(300000, "0c1cd46df6ccff90ec4ab493281f2583c344cd62216c427628990fe9db1bb8b6"); + ADD_CHECKPOINT(400000, "1b2b0e7a30e59691491529a3d506d1ba3d6052d0f6b52198b7330b28a6f1b6ac"); + ADD_CHECKPOINT(450000, "4d098b511ca97723e81737c448343cfd4e6dadb3d8a0e757c6e4d595e6e48357"); + ADD_CHECKPOINT(460000, "75037a7aed3e765db96c75bcf908f59d690a5f3390baebb9edeafd336a1c4831"); + ADD_CHECKPOINT(500000, "2428f0dbe49796be05ed81b347f53e1f7f44aed0abf641446ec2b94cae066b02"); + ADD_CHECKPOINT(600000, "f5828ebf7d7d1cb61762c4dfe3ccf4ecab2e1aad23e8113668d981713b7a54c5"); + ADD_CHECKPOINT(700000, "12be9b3d210b93f574d2526abb9c1ab2a881b479131fd0d4f7dac93875f503cd"); + ADD_CHECKPOINT(825000, "56503f9ad766774b575be3aff73245e9d159be88132c93d1754764f28da2ff60"); + ADD_CHECKPOINT(900000, "d9958d0e7dcf91a5a7b11de225927bf7efc6eb26240315ce12372be902cc1337"); + ADD_CHECKPOINT(913193, "5292d5d56f6ba4de33a58d9a34d263e2cb3c6fee0aed2286fd4ac7f36d53c85f"); + + return true; +} + +bool load_checkpoints_from_json(cryptonote::checkpoints& checkpoints, std::string json_hashfile_fullpath) +{ + boost::system::error_code errcode; + if (! (boost::filesystem::exists(json_hashfile_fullpath, errcode))) + { + LOG_PRINT_L1("Blockchain checkpoints file not found"); + return true; + } + + LOG_PRINT_L1("Adding checkpoints from blockchain hashfile"); + + uint64_t prev_max_height = checkpoints.get_max_height(); + LOG_PRINT_L1("Hard-coded max checkpoint height is " << prev_max_height); + t_hash_json hashes; + epee::serialization::load_t_from_json_file(hashes, json_hashfile_fullpath); + for (std::vector<t_hashline>::const_iterator it = hashes.hashlines.begin(); it != hashes.hashlines.end(); ) + { + uint64_t height; + height = it->height; + if (height <= prev_max_height) { + LOG_PRINT_L1("ignoring checkpoint height " << height); + } else { + std::string blockhash = it->hash; + LOG_PRINT_L1("Adding checkpoint height " << height << ", hash=" << blockhash); + ADD_CHECKPOINT(height, blockhash); + } + ++it; + } + + return true; +} + +bool load_checkpoints_from_dns(cryptonote::checkpoints& checkpoints, bool testnet) +{ + // All four MoneroPulse domains have DNSSEC on and valid + static const std::vector<std::string> dns_urls = { "checkpoints.moneropulse.se" + , "checkpoints.moneropulse.org" + , "checkpoints.moneropulse.net" + , "checkpoints.moneropulse.co" + }; + + static const std::vector<std::string> testnet_dns_urls = { "testpoints.moneropulse.se" + , "testpoints.moneropulse.org" + , "testpoints.moneropulse.net" + , "testpoints.moneropulse.co" + }; + + std::vector<std::vector<std::string> > records; + records.resize(dns_urls.size()); + + std::random_device rd; + std::mt19937 gen(rd()); + std::uniform_int_distribution<int> dis(0, dns_urls.size() - 1); + size_t first_index = dis(gen); + + bool avail, valid; + size_t cur_index = first_index; + do + { + std::string url; + if (testnet) + { + url = testnet_dns_urls[cur_index]; + } + else + { + url = dns_urls[cur_index]; + } + + records[cur_index] = tools::DNSResolver::instance().get_txt_record(url, avail, valid); + if (!avail) + { + records[cur_index].clear(); + LOG_PRINT_L2("DNSSEC not available for checkpoint update at URL: " << url << ", skipping."); + } + if (!valid) + { + records[cur_index].clear(); + LOG_PRINT_L2("DNSSEC validation failed for checkpoint update at URL: " << url << ", skipping."); + } + + cur_index++; + if (cur_index == dns_urls.size()) + { + cur_index = 0; + } + records[cur_index].clear(); + } while (cur_index != first_index); + + size_t num_valid_records = 0; + + for( const auto& record_set : records) + { + if (record_set.size() != 0) + { + num_valid_records++; + } + } + + if (num_valid_records < 2) + { + LOG_PRINT_L0("WARNING: no two valid MoneroPulse DNS checkpoint records were received"); + return true; + } + + int good_records_index = -1; + for (size_t i = 0; i < records.size() - 1; ++i) + { + if (records[i].size() == 0) continue; + + for (size_t j = i + 1; j < records.size(); ++j) + { + if (dns_records_match(records[i], records[j])) + { + good_records_index = i; + break; + } + } + if (good_records_index >= 0) break; + } + + if (good_records_index < 0) + { + LOG_PRINT_L0("WARNING: no two MoneroPulse DNS checkpoint records matched"); + return true; + } + + for (auto& record : records[good_records_index]) + { + auto pos = record.find(":"); + if (pos != std::string::npos) + { + uint64_t height; + crypto::hash hash; + + // parse the first part as uint64_t, + // if this fails move on to the next record + std::stringstream ss(record.substr(0, pos)); + if (!(ss >> height)) + { + continue; + } + + // parse the second part as crypto::hash, + // if this fails move on to the next record + std::string hashStr = record.substr(pos + 1); + if (!epee::string_tools::parse_tpod_from_hex_string(hashStr, hash)) + { + continue; + } + + ADD_CHECKPOINT(height, hashStr); + } + } + return true; +} + +bool load_new_checkpoints(cryptonote::checkpoints& checkpoints, std::string json_hashfile_fullpath) +{ + // TODO: replace hard-coded url with const string or #define + return (load_checkpoints_from_json(checkpoints, json_hashfile_fullpath) && load_checkpoints_from_dns(checkpoints)); +} + +} // namespace cryptonote diff --git a/src/cryptonote_core/checkpoints_create.h b/src/cryptonote_core/checkpoints_create.h new file mode 100644 index 000000000..83830f8a2 --- /dev/null +++ b/src/cryptonote_core/checkpoints_create.h @@ -0,0 +1,48 @@ +// Copyright (c) 2014-2016, The Monero Project +// +// All rights reserved. +// +// Redistribution and use in source and binary forms, with or without modification, are +// permitted provided that the following conditions are met: +// +// 1. Redistributions of source code must retain the above copyright notice, this list of +// conditions and the following disclaimer. +// +// 2. Redistributions in binary form must reproduce the above copyright notice, this list +// of conditions and the following disclaimer in the documentation and/or other +// materials provided with the distribution. +// +// 3. Neither the name of the copyright holder nor the names of its contributors may be +// used to endorse or promote products derived from this software without specific +// prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY +// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL +// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, +// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, +// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF +// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +// +// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers + +#pragma once + +#include "checkpoints.h" +#include "misc_log_ex.h" + +#define ADD_CHECKPOINT(h, hash) CHECK_AND_ASSERT(checkpoints.add_checkpoint(h, hash), false); +#define JSON_HASH_FILE_NAME "checkpoints.json" + +namespace cryptonote +{ + + bool create_checkpoints(cryptonote::checkpoints& checkpoints); + + bool load_checkpoints_from_json(cryptonote::checkpoints& checkpoints, std::string json_hashfile_fullpath); + bool load_checkpoints_from_dns(cryptonote::checkpoints& checkpoints, bool testnet = false); + bool load_new_checkpoints(cryptonote::checkpoints& checkpoints, std::string json_hashfile_fullpath); + +} // namespace cryptonote diff --git a/src/cryptonote_core/cryptonote_core.cpp b/src/cryptonote_core/cryptonote_core.cpp index c31be5acf..6f0fe88a4 100644 --- a/src/cryptonote_core/cryptonote_core.cpp +++ b/src/cryptonote_core/cryptonote_core.cpp @@ -42,7 +42,7 @@ using namespace epee; #include "cryptonote_format_utils.h" #include "misc_language.h" #include <csignal> -#include "cryptonote_core/checkpoints.h" +#include "cryptonote_core/checkpoints_create.h" #include "blockchain_db/blockchain_db.h" #include "blockchain_db/lmdb/db_lmdb.h" #if defined(BERKELEY_DB) @@ -159,7 +159,7 @@ namespace cryptonote if (!m_testnet && !m_fakechain) { cryptonote::checkpoints checkpoints; - if (!checkpoints.init_default_checkpoints()) + if (!cryptonote::create_checkpoints(checkpoints)) { throw std::runtime_error("Failed to initialize checkpoints"); } @@ -415,7 +415,7 @@ namespace cryptonote CHECK_AND_ASSERT_MES(update_checkpoints(), false, "One or more checkpoints loaded from json or dns conflicted with existing checkpoints."); r = m_miner.init(vm, m_testnet); - CHECK_AND_ASSERT_MES(r, false, "Failed to initialize miner instance"); + CHECK_AND_ASSERT_MES(r, false, "Failed to initialize blockchain storage"); return load_state_data(); } @@ -634,6 +634,11 @@ namespace cryptonote return m_blockchain_storage.get_total_transactions(); } //----------------------------------------------------------------------------------------------- + //bool core::get_outs(uint64_t amount, std::list<crypto::public_key>& pkeys) + //{ + // return m_blockchain_storage.get_outs(amount, pkeys); + //} + //----------------------------------------------------------------------------------------------- bool core::add_new_tx(const transaction& tx, const crypto::hash& tx_hash, const crypto::hash& tx_prefix_hash, size_t blob_size, tx_verification_context& tvc, bool keeped_by_block, bool relayed) { if(m_mempool.have_tx(tx_hash)) @@ -765,6 +770,10 @@ namespace cryptonote { m_miner.on_synchronized(); } + //bool core::get_backward_blocks_sizes(uint64_t from_height, std::vector<size_t>& sizes, size_t count) + //{ + // return m_blockchain_storage.get_backward_blocks_sizes(from_height, sizes, count); + //} //----------------------------------------------------------------------------------------------- bool core::add_new_block(const block& b, block_verification_context& bvc) { @@ -885,6 +894,10 @@ namespace cryptonote return m_blockchain_storage.get_block_by_hash(h, blk); } //----------------------------------------------------------------------------------------------- + //void core::get_all_known_block_ids(std::list<crypto::hash> &main, std::list<crypto::hash> &alt, std::list<crypto::hash> &invalid) { + // m_blockchain_storage.get_all_known_block_ids(main, alt, invalid); + //} + //----------------------------------------------------------------------------------------------- std::string core::print_pool(bool short_format) const { return m_mempool.print_pool(short_format); diff --git a/src/cryptonote_core/cryptonote_core.h b/src/cryptonote_core/cryptonote_core.h index 30384209f..32f0b2ad4 100644 --- a/src/cryptonote_core/cryptonote_core.h +++ b/src/cryptonote_core/cryptonote_core.h @@ -63,739 +63,157 @@ namespace cryptonote /************************************************************************/ /* */ /************************************************************************/ - - /** - * @brief handles core cryptonote functionality - * - * This class coordinates cryptonote functionality including, but not - * limited to, communication among the Blockchain, the transaction pool, - * any miners, and the network. - */ class core: public i_miner_handler { public: - - /** - * @brief constructor - * - * sets member variables into a usable state - * - * @param pprotocol pre-constructed protocol object to store and use - */ core(i_cryptonote_protocol* pprotocol); - - /** - * @copydoc Blockchain::handle_get_objects - * - * @note see Blockchain::handle_get_objects() - * @param context connection context associated with the request - */ bool handle_get_objects(NOTIFY_REQUEST_GET_OBJECTS::request& arg, NOTIFY_RESPONSE_GET_OBJECTS::request& rsp, cryptonote_connection_context& context); - - /** - * @brief calls various idle routines - * - * @note see miner::on_idle and tx_memory_pool::on_idle - * - * @return true - */ bool on_idle(); - - /** - * @brief handles an incoming transaction - * - * Parses an incoming transaction and, if nothing is obviously wrong, - * passes it along to the transaction pool - * - * @param tx_blob the tx to handle - * @param tvc metadata about the transaction's validity - * @param keeped_by_block if the transaction has been in a block - * @param relayed whether or not the transaction was relayed to us - * - * @return true if the transaction made it to the transaction pool, otherwise false - */ bool handle_incoming_tx(const blobdata& tx_blob, tx_verification_context& tvc, bool keeped_by_block, bool relayed); - - /** - * @brief handles an incoming block - * - * periodic update to checkpoints is triggered here - * Attempts to add the block to the Blockchain and, on success, - * optionally updates the miner's block template. - * - * @param block_blob the block to be added - * @param bvc return-by-reference metadata context about the block's validity - * @param update_miner_blocktemplate whether or not to update the miner's block template - * - * @return false if loading new checkpoints fails, or the block is not - * added, otherwise true - */ bool handle_incoming_block(const blobdata& block_blob, block_verification_context& bvc, bool update_miner_blocktemplate = true); - - /** - * @copydoc Blockchain::prepare_handle_incoming_blocks - * - * @note see Blockchain::prepare_handle_incoming_blocks - */ bool prepare_handle_incoming_blocks(const std::list<block_complete_entry> &blocks); - - /** - * @copydoc Blockchain::cleanup_handle_incoming_blocks - * - * @note see Blockchain::cleanup_handle_incoming_blocks - */ bool cleanup_handle_incoming_blocks(bool force_sync = false); - - /** - * @brief check the size of a block against the current maximum - * - * @param block_blob the block to check - * - * @return whether or not the block is too big - */ - bool check_incoming_block_size(const blobdata& block_blob) const; - /** - * @brief get the cryptonote protocol instance - * - * @return the instance - */ + bool check_incoming_block_size(const blobdata& block_blob) const; i_cryptonote_protocol* get_protocol(){return m_pprotocol;} //-------------------- i_miner_handler ----------------------- - - /** - * @brief stores and relays a block found by a miner - * - * Updates the miner's target block, attempts to store the found - * block in Blockchain, and -- on success -- relays that block to - * the network. - * - * @param b the block found - * - * @return true if the block was added to the main chain, otherwise false - */ virtual bool handle_block_found( block& b); - - /** - * @copydoc Blockchain::create_block_template - * - * @note see Blockchain::create_block_template - */ virtual bool get_block_template(block& b, const account_public_address& adr, difficulty_type& diffic, uint64_t& height, const blobdata& ex_nonce); - /** - * @brief gets the miner instance - * - * @return a reference to the miner instance - */ miner& get_miner(){return m_miner;} - - /** - * @brief gets the miner instance (const) - * - * @return a const reference to the miner instance - */ const miner& get_miner()const{return m_miner;} - - /** - * @brief adds command line options to the given options set - * - * As of now, there are no command line options specific to core, - * so this function simply returns. - * - * @param desc return-by-reference the command line options set to add to - */ static void init_options(boost::program_options::options_description& desc); - - /** - * @brief initializes the core as needed - * - * This function initializes the transaction pool, the Blockchain, and - * a miner instance with parameters given on the command line (or defaults) - * - * @param vm command line parameters - * @param test_options configuration options for testing - * - * @return false if one of the init steps fails, otherwise true - */ bool init(const boost::program_options::variables_map& vm, const test_options *test_options = NULL); - - /** - * @copydoc Blockchain::reset_and_set_genesis_block - * - * @note see Blockchain::reset_and_set_genesis_block - */ bool set_genesis_block(const block& b); - - /** - * @brief performs safe shutdown steps for core and core components - * - * Uninitializes the miner instance, transaction pool, and Blockchain - * - * if m_fast_exit is set, the call to Blockchain::deinit() is not made. - * - * @return true - */ bool deinit(); - - /** - * @brief sets fast exit flag - * - * @note see deinit() - */ static void set_fast_exit(); - - /** - * @brief gets the current state of the fast exit flag - * - * @return the fast exit flag - * - * @note see deinit() - */ static bool get_fast_exit(); - - /** - * @brief sets to drop blocks downloaded (for testing) - */ void test_drop_download(); - - /** - * @brief sets to drop blocks downloaded below a certain height - * - * @param height height below which to drop blocks - */ void test_drop_download_height(uint64_t height); - - /** - * @brief gets whether or not to drop blocks (for testing) - * - * @return whether or not to drop blocks - */ bool get_test_drop_download() const; - - /** - * @brief gets whether or not to drop blocks - * - * If the current blockchain height <= our block drop threshold - * and test drop blocks is set, return true - * - * @return see above - */ bool get_test_drop_download_height() const; - - /** - * @copydoc Blockchain::get_current_blockchain_height - * - * @note see Blockchain::get_current_blockchain_height() - */ uint64_t get_current_blockchain_height() const; - - /** - * @brief get the hash and height of the most recent block - * - * @param height return-by-reference height of the block - * @param top_id return-by-reference hash of the block - * - * @return true - */ - bool get_blockchain_top(uint64_t& height, crypto::hash& top_id) const; - - /** - * @copydoc Blockchain::get_blocks(uint64_t, size_t, std::list<block>&, std::list<transaction>&) const - * - * @note see Blockchain::get_blocks(uint64_t, size_t, std::list<block>&, std::list<transaction>&) const - */ + bool get_blockchain_top(uint64_t& heeight, crypto::hash& top_id) const; bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks, std::list<transaction>& txs) const; - - /** - * @copydoc Blockchain::get_blocks(uint64_t, size_t, std::list<block>&) const - * - * @note see Blockchain::get_blocks(uint64_t, size_t, std::list<block>&) const - */ bool get_blocks(uint64_t start_offset, size_t count, std::list<block>& blocks) const; - - /** - * @copydoc Blockchain::get_blocks(const t_ids_container&, t_blocks_container&, t_missed_container&) const - * - * @note see Blockchain::get_blocks(const t_ids_container&, t_blocks_container&, t_missed_container&) const - */ template<class t_ids_container, class t_blocks_container, class t_missed_container> bool get_blocks(const t_ids_container& block_ids, t_blocks_container& blocks, t_missed_container& missed_bs) const { return m_blockchain_storage.get_blocks(block_ids, blocks, missed_bs); } - - /** - * @copydoc Blockchain::get_block_id_by_height - * - * @note see Blockchain::get_block_id_by_height - */ crypto::hash get_block_id_by_height(uint64_t height) const; - - /** - * @copydoc Blockchain::get_transactions - * - * @note see Blockchain::get_transactions - */ bool get_transactions(const std::vector<crypto::hash>& txs_ids, std::list<transaction>& txs, std::list<crypto::hash>& missed_txs) const; - - /** - * @copydoc Blockchain::get_block_by_hash - * - * @note see Blockchain::get_block_by_hash - */ bool get_block_by_hash(const crypto::hash &h, block &blk) const; + //void get_all_known_block_ids(std::list<crypto::hash> &main, std::list<crypto::hash> &alt, std::list<crypto::hash> &invalid); - /** - * @copydoc Blockchain::get_alternative_blocks - * - * @note see Blockchain::get_alternative_blocks(std::list<block>&) const - */ bool get_alternative_blocks(std::list<block>& blocks) const; - - /** - * @copydoc Blockchain::get_alternative_blocks_count - * - * @note see Blockchain::get_alternative_blocks_count() const - */ size_t get_alternative_blocks_count() const; - /** - * @brief set the pointer to the cryptonote protocol object to use - * - * @param pprotocol the pointer to set ours as - */ void set_cryptonote_protocol(i_cryptonote_protocol* pprotocol); - - /** - * @copydoc Blockchain::set_checkpoints - * - * @note see Blockchain::set_checkpoints() - */ void set_checkpoints(checkpoints&& chk_pts); - - /** - * @brief set the file path to read from when loading checkpoints - * - * @param path the path to set ours as - */ void set_checkpoints_file_path(const std::string& path); - - /** - * @brief set whether or not we enforce DNS checkpoints - * - * @param enforce_dns enforce DNS checkpoints or not - */ void set_enforce_dns_checkpoints(bool enforce_dns); - /** - * @copydoc tx_memory_pool::get_transactions - * - * @note see tx_memory_pool::get_transactions - */ bool get_pool_transactions(std::list<transaction>& txs) const; - - /** - * @copydoc tx_memory_pool::get_pool_transactions_and_spent_keys_info - * - * @note see tx_memory_pool::get_pool_transactions_and_spent_keys_info - */ bool get_pool_transactions_and_spent_keys_info(std::vector<tx_info>& tx_infos, std::vector<spent_key_image_info>& key_image_infos) const; - - /** - * @copydoc tx_memory_pool::get_transactions_count - * - * @note see tx_memory_pool::get_transactions_count - */ size_t get_pool_transactions_count() const; - - /** - * @copydoc Blockchain::get_total_transactions - * - * @note see Blockchain::get_total_transactions - */ size_t get_blockchain_total_transactions() const; - - /** - * @copydoc Blockchain::have_block - * - * @note see Blockchain::have_block - */ + //bool get_outs(uint64_t amount, std::list<crypto::public_key>& pkeys); bool have_block(const crypto::hash& id) const; - - /** - * @copydoc Blockchain::get_short_chain_history - * - * @note see Blockchain::get_short_chain_history - */ bool get_short_chain_history(std::list<crypto::hash>& ids) const; - - /** - * @copydoc Blockchain::find_blockchain_supplement(const std::list<crypto::hash>&, NOTIFY_RESPONSE_CHAIN_ENTRY::request&) const - * - * @note see Blockchain::find_blockchain_supplement(const std::list<crypto::hash>&, NOTIFY_RESPONSE_CHAIN_ENTRY::request&) const - */ bool find_blockchain_supplement(const std::list<crypto::hash>& qblock_ids, NOTIFY_RESPONSE_CHAIN_ENTRY::request& resp) const; - - /** - * @copydoc Blockchain::find_blockchain_supplement(const uint64_t, const std::list<crypto::hash>&, std::list<std::pair<block, std::list<transaction> > >&, uint64_t&, uint64_t&, size_t) const - * - * @note see Blockchain::find_blockchain_supplement(const uint64_t, const std::list<crypto::hash>&, std::list<std::pair<block, std::list<transaction> > >&, uint64_t&, uint64_t&, size_t) const - */ bool find_blockchain_supplement(const uint64_t req_start_block, const std::list<crypto::hash>& qblock_ids, std::list<std::pair<block, std::list<transaction> > >& blocks, uint64_t& total_height, uint64_t& start_height, size_t max_count) const; - - /** - * @brief gets some stats about the daemon - * - * @param st_inf return-by-reference container for the stats requested - * - * @return true - */ bool get_stat_info(core_stat_info& st_inf) const; - - /** - * @copydoc Blockchain::get_tx_outputs_gindexs - * - * @note see Blockchain::get_tx_outputs_gindexs - */ + //bool get_backward_blocks_sizes(uint64_t from_height, std::vector<size_t>& sizes, size_t count); bool get_tx_outputs_gindexs(const crypto::hash& tx_id, std::vector<uint64_t>& indexs) const; - - /** - * @copydoc Blockchain::get_tail_id - * - * @note see Blockchain::get_tail_id - */ crypto::hash get_tail_id() const; - - /** - * @copydoc Blockchain::get_random_outs_for_amounts - * - * @note see Blockchain::get_random_outs_for_amounts - */ bool get_random_outs_for_amounts(const COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::request& req, COMMAND_RPC_GET_RANDOM_OUTPUTS_FOR_AMOUNTS::response& res) const; - - - /** - * @copydoc miner::pause - * - * @note see miner::pause - */ void pause_mine(); - - /** - * @copydoc miner::resume - * - * @note see miner::resume - */ void resume_mine(); - #if BLOCKCHAIN_DB == DB_LMDB - /** - * @brief gets the Blockchain instance - * - * @return a reference to the Blockchain instance - */ Blockchain& get_blockchain_storage(){return m_blockchain_storage;} - - /** - * @brief gets the Blockchain instance (const) - * - * @return a const reference to the Blockchain instance - */ const Blockchain& get_blockchain_storage()const{return m_blockchain_storage;} #else blockchain_storage& get_blockchain_storage(){return m_blockchain_storage;} const blockchain_storage& get_blockchain_storage()const{return m_blockchain_storage;} #endif - - /** - * @copydoc Blockchain::print_blockchain - * - * @note see Blockchain::print_blockchain - */ + //debug functions void print_blockchain(uint64_t start_index, uint64_t end_index) const; - - /** - * @copydoc Blockchain::print_blockchain_index - * - * @note see Blockchain::print_blockchain_index - */ void print_blockchain_index() const; - - /** - * @copydoc tx_memory_pool::print_pool - * - * @note see tx_memory_pool::print_pool - */ std::string print_pool(bool short_format) const; - - /** - * @copydoc Blockchain::print_blockchain_outs - * - * @note see Blockchain::print_blockchain_outs - */ void print_blockchain_outs(const std::string& file); - - /** - * @copydoc miner::on_synchronized - * - * @note see miner::on_synchronized - */ void on_synchronized(); - /** - * @brief sets the target blockchain height - * - * @param target_blockchain_height the height to set - */ void set_target_blockchain_height(uint64_t target_blockchain_height); - - /** - * @brief gets the target blockchain height - * - * @param target_blockchain_height the target height - */ uint64_t get_target_blockchain_height() const; - /** - * @brief tells the Blockchain to update its checkpoints - * - * This function will check if enough time has passed since the last - * time checkpoints were updated and tell the Blockchain to update - * its checkpoints if it is time. If updating checkpoints fails, - * the daemon is told to shut down. - * - * @note see Blockchain::update_checkpoints() - */ bool update_checkpoints(); - /** - * @brief tells the daemon to wind down operations and stop running - * - * Currently this function raises SIGTERM, allowing the installed signal - * handlers to do the actual stopping. - */ - void graceful_exit(); - - /** - * @brief stops the daemon running - * - * @note see graceful_exit() - */ void stop(); - /** - * @copydoc Blockchain::have_tx_keyimg_as_spent - * - * @note see Blockchain::have_tx_keyimg_as_spent - */ bool is_key_image_spent(const crypto::key_image& key_im) const; - - /** - * @brief check if multiple key images are spent - * - * plural version of is_key_image_spent() - * - * @param key_im list of key images to check - * @param spent return-by-reference result for each image checked - * - * @return true - */ bool are_key_images_spent(const std::vector<crypto::key_image>& key_im, std::vector<bool> &spent) const; private: - - /** - * @copydoc add_new_tx(const transaction&, tx_verification_context&, bool) - * - * @param tx_hash the transaction's hash - * @param tx_prefix_hash the transaction prefix' hash - * @param blob_size the size of the transaction - * @param relayed whether or not the transaction was relayed to us - * - */ bool add_new_tx(const transaction& tx, const crypto::hash& tx_hash, const crypto::hash& tx_prefix_hash, size_t blob_size, tx_verification_context& tvc, bool keeped_by_block, bool relayed); - - /** - * @brief add a new transaction to the transaction pool - * - * Adds a new transaction to the transaction pool. - * - * @param tx the transaction to add - * @param tvc return-by-reference metadata about the transaction's verification process - * @param keeped_by_block whether or not the transaction has been in a block - * @param relayed whether or not the transaction was relayed to us - * - * @return true if the transaction is already in the transaction pool, - * is already in a block on the Blockchain, or is successfully added - * to the transaction pool - */ bool add_new_tx(const transaction& tx, tx_verification_context& tvc, bool keeped_by_block, bool relayed); - - /** - * @copydoc Blockchain::add_new_block - * - * @note see Blockchain::add_new_block - */ bool add_new_block(const block& b, block_verification_context& bvc); - - /** - * @brief load any core state stored on disk - * - * currently does nothing, but may have state to load in the future. - * - * @return true - */ bool load_state_data(); - - /** - * @copydoc parse_tx_from_blob(transaction&, crypto::hash&, crypto::hash&, const blobdata&) const - * - * @note see parse_tx_from_blob(transaction&, crypto::hash&, crypto::hash&, const blobdata&) const - */ bool parse_tx_from_blob(transaction& tx, crypto::hash& tx_hash, crypto::hash& tx_prefix_hash, const blobdata& blob) const; - /** - * @brief check a transaction's syntax - * - * For now this does nothing, but it may check something about the tx - * in the future. - * - * @param tx the transaction to check - * - * @return true - */ bool check_tx_syntax(const transaction& tx) const; - - /** - * @brief validates some simple properties of a transaction - * - * Currently checks: tx has inputs, - * tx inputs all of supported type(s), - * tx outputs valid (type, key, amount), - * input and output total amounts don't overflow, - * output amount <= input amount, - * tx not too large, - * each input has a different key image. - * - * @param tx the transaction to check - * @param keeped_by_block if the transaction has been in a block - * - * @return true if all the checks pass, otherwise false - */ + //check correct values, amounts and all lightweight checks not related with database bool check_tx_semantic(const transaction& tx, bool keeped_by_block) const; + //check if tx already in memory pool or in main blockchain - /** - * @copydoc miner::on_block_chain_update - * - * @note see miner::on_block_chain_update - * - * @return true - */ + bool check_tx_ring_signature(const txin_to_key& tx, const crypto::hash& tx_prefix_hash, const std::vector<crypto::signature>& sig) const; + bool is_tx_spendtime_unlocked(uint64_t unlock_time) const; bool update_miner_block_template(); - - /** - * @brief act on a set of command line options given - * - * @param vm the command line options - * - * @return true - */ bool handle_command_line(const boost::program_options::variables_map& vm); - - /** - * @brief verify that each input key image in a transaction is unique - * - * @param tx the transaction to check - * - * @return false if any key image is repeated, otherwise true - */ + bool on_update_blocktemplate_interval(); bool check_tx_inputs_keyimages_diff(const transaction& tx) const; - - /** - * @brief checks HardFork status and prints messages about it - * - * Checks the status of HardFork and logs/prints if an update to - * the daemon is necessary. - * - * @note see Blockchain::get_hard_fork_state and HardFork::State - * - * @return true - */ + void graceful_exit(); bool check_fork_time(); - - /** - * @brief attempts to relay any transactions in the mempool which need it - * - * @return true - */ bool relay_txpool_transactions(); - - /** - * @brief locks a file in the BlockchainDB directory - * - * @param path the directory in which to place the file - * - * @return true if lock acquired successfully, otherwise false - */ bool lock_db_directory(const boost::filesystem::path &path); - - /** - * @brief unlocks the db directory - * - * @note see lock_db_directory() - * - * @return true - */ bool unlock_db_directory(); - static std::atomic<bool> m_fast_exit; //!< whether or not to deinit Blockchain on exit - - bool m_test_drop_download = true; //!< whether or not to drop incoming blocks (for testing) + static std::atomic<bool> m_fast_exit; + bool m_test_drop_download = true; + uint64_t m_test_drop_download_height = 0; - uint64_t m_test_drop_download_height = 0; //!< height under which to drop incoming blocks, if doing so - - tx_memory_pool m_mempool; //!< transaction pool instance + tx_memory_pool m_mempool; #if BLOCKCHAIN_DB == DB_LMDB - Blockchain m_blockchain_storage; //!< Blockchain instance + Blockchain m_blockchain_storage; #else blockchain_storage m_blockchain_storage; #endif - - i_cryptonote_protocol* m_pprotocol; //!< cryptonote protocol instance - - epee::critical_section m_incoming_tx_lock; //!< incoming transaction lock - + i_cryptonote_protocol* m_pprotocol; + epee::critical_section m_incoming_tx_lock; //m_miner and m_miner_addres are probably temporary here - miner m_miner; //!< miner instance - account_public_address m_miner_address; //!< address to mine to (for miner instance) - - std::string m_config_folder; //!< folder to look in for configs and other files - - cryptonote_protocol_stub m_protocol_stub; //!< cryptonote protocol stub instance - - epee::math_helper::once_a_time_seconds<60*60*12, false> m_store_blockchain_interval; //!< interval for manual storing of Blockchain, if enabled - epee::math_helper::once_a_time_seconds<60*60*2, false> m_fork_moaner; //!< interval for checking HardFork status + miner m_miner; + account_public_address m_miner_address; + std::string m_config_folder; + cryptonote_protocol_stub m_protocol_stub; + epee::math_helper::once_a_time_seconds<60*60*12, false> m_store_blockchain_interval; + epee::math_helper::once_a_time_seconds<60*60*2, true> m_fork_moaner; epee::math_helper::once_a_time_seconds<60*2, false> m_txpool_auto_relayer; //!< interval for checking re-relaying txpool transactions - friend class tx_validate_inputs; - std::atomic<bool> m_starter_message_showed; //!< has the "daemon will sync now" message been shown? - - uint64_t m_target_blockchain_height; //!< blockchain height target - - bool m_testnet; //!< are we on testnet? + std::atomic<bool> m_starter_message_showed; - bool m_fakechain; //!< are we using a fake chain (for testing purposes)? + uint64_t m_target_blockchain_height; - std::string m_checkpoints_path; //!< path to json checkpoints file - time_t m_last_dns_checkpoints_update; //!< time when dns checkpoints were last updated - time_t m_last_json_checkpoints_update; //!< time when json checkpoints were last updated + bool m_testnet; + bool m_fakechain; + std::string m_checkpoints_path; + time_t m_last_dns_checkpoints_update; + time_t m_last_json_checkpoints_update; - std::atomic_flag m_checkpoints_updating; //!< set if checkpoints are currently updating to avoid multiple threads attempting to update at once + std::atomic_flag m_checkpoints_updating; - boost::interprocess::file_lock db_lock; //!< a lock object for a file lock in the db directory + boost::interprocess::file_lock db_lock; }; } diff --git a/src/cryptonote_core/difficulty.cpp b/src/cryptonote_core/difficulty.cpp index 54da77392..236e84481 100644 --- a/src/cryptonote_core/difficulty.cpp +++ b/src/cryptonote_core/difficulty.cpp @@ -116,8 +116,8 @@ namespace cryptonote { return !carry; } - difficulty_type next_difficulty(std::vector<std::uint64_t> timestamps, std::vector<difficulty_type> cumulative_difficulties, size_t target_seconds) { - + difficulty_type next_difficulty(vector<uint64_t> timestamps, vector<difficulty_type> cumulative_difficulties, size_t target_seconds) { + //cutoff DIFFICULTY_LAG if(timestamps.size() > DIFFICULTY_WINDOW) { timestamps.resize(DIFFICULTY_WINDOW); @@ -151,8 +151,6 @@ namespace cryptonote { assert(total_work > 0); uint64_t low, high; mul(total_work, target_seconds, low, high); - // blockchain errors "difficulty overhead" if this function returns zero. - // TODO: consider throwing an exception instead if (high != 0 || low + time_span - 1 < low) { return 0; } diff --git a/src/cryptonote_core/difficulty.h b/src/cryptonote_core/difficulty.h index 910f97035..d49c2f3b8 100644 --- a/src/cryptonote_core/difficulty.h +++ b/src/cryptonote_core/difficulty.h @@ -39,18 +39,6 @@ namespace cryptonote { typedef std::uint64_t difficulty_type; - /** - * @brief checks if a hash fits the given difficulty - * - * The hash passes if (hash * difficulty) < 2^192. - * Phrased differently, if (hash * difficulty) fits without overflow into - * the least significant 192 bits of the 256 bit multiplication result. - * - * @param hash the hash to check - * @param difficulty the difficulty to check against - * - * @return true if valid, else false - */ bool check_hash(const crypto::hash &hash, difficulty_type difficulty); difficulty_type next_difficulty(std::vector<std::uint64_t> timestamps, std::vector<difficulty_type> cumulative_difficulties, size_t target_seconds); } |