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Diffstat (limited to 'src/cryptonote_basic/cryptonote_basic_impl.cpp')
| -rw-r--r-- | src/cryptonote_basic/cryptonote_basic_impl.cpp | 347 |
1 files changed, 347 insertions, 0 deletions
diff --git a/src/cryptonote_basic/cryptonote_basic_impl.cpp b/src/cryptonote_basic/cryptonote_basic_impl.cpp new file mode 100644 index 000000000..338210f01 --- /dev/null +++ b/src/cryptonote_basic/cryptonote_basic_impl.cpp @@ -0,0 +1,347 @@ +// 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 "include_base_utils.h" +using namespace epee; + +#include "cryptonote_basic_impl.h" +#include "string_tools.h" +#include "serialization/binary_utils.h" +#include "serialization/vector.h" +#include "cryptonote_format_utils.h" +#include "cryptonote_config.h" +#include "misc_language.h" +#include "common/base58.h" +#include "crypto/hash.h" +#include "common/int-util.h" +#include "common/dns_utils.h" + +#undef MONERO_DEFAULT_LOG_CATEGORY +#define MONERO_DEFAULT_LOG_CATEGORY "cn" + +namespace cryptonote { + + struct integrated_address { + account_public_address adr; + crypto::hash8 payment_id; + + BEGIN_SERIALIZE_OBJECT() + FIELD(adr) + FIELD(payment_id) + END_SERIALIZE() + + BEGIN_KV_SERIALIZE_MAP() + KV_SERIALIZE(adr) + KV_SERIALIZE(payment_id) + END_KV_SERIALIZE_MAP() + }; + + /************************************************************************/ + /* Cryptonote helper functions */ + /************************************************************************/ + //----------------------------------------------------------------------------------------------- + size_t get_max_block_size() + { + return CRYPTONOTE_MAX_BLOCK_SIZE; + } + //----------------------------------------------------------------------------------------------- + size_t get_max_tx_size() + { + return CRYPTONOTE_MAX_TX_SIZE; + } + //----------------------------------------------------------------------------------------------- + bool get_block_reward(size_t median_size, size_t current_block_size, uint64_t already_generated_coins, uint64_t &reward, uint8_t version) { + static_assert(DIFFICULTY_TARGET_V2%60==0&&DIFFICULTY_TARGET_V1%60==0,"difficulty targets must be a multiple of 60"); + const int target = version < 2 ? DIFFICULTY_TARGET_V1 : DIFFICULTY_TARGET_V2; + const int target_minutes = target / 60; + const int emission_speed_factor = EMISSION_SPEED_FACTOR_PER_MINUTE - (target_minutes-1); + + uint64_t base_reward = (MONEY_SUPPLY - already_generated_coins) >> emission_speed_factor; + if (base_reward < FINAL_SUBSIDY_PER_MINUTE*target_minutes) + { + base_reward = FINAL_SUBSIDY_PER_MINUTE*target_minutes; + } + + uint64_t full_reward_zone = version < 2 ? CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V1 : CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V2; + + //make it soft + if (median_size < full_reward_zone) { + median_size = full_reward_zone; + } + + if (current_block_size <= median_size) { + reward = base_reward; + return true; + } + + if(current_block_size > 2 * median_size) { + MERROR("Block cumulative size is too big: " << current_block_size << ", expected less than " << 2 * median_size); + return false; + } + + assert(median_size < std::numeric_limits<uint32_t>::max()); + assert(current_block_size < std::numeric_limits<uint32_t>::max()); + + uint64_t product_hi; + // BUGFIX: 32-bit saturation bug (e.g. ARM7), the result was being + // treated as 32-bit by default. + uint64_t multiplicand = 2 * median_size - current_block_size; + multiplicand *= current_block_size; + uint64_t product_lo = mul128(base_reward, multiplicand, &product_hi); + + uint64_t reward_hi; + uint64_t reward_lo; + div128_32(product_hi, product_lo, static_cast<uint32_t>(median_size), &reward_hi, &reward_lo); + div128_32(reward_hi, reward_lo, static_cast<uint32_t>(median_size), &reward_hi, &reward_lo); + assert(0 == reward_hi); + assert(reward_lo < base_reward); + + reward = reward_lo; + return true; + } + //------------------------------------------------------------------------------------ + uint8_t get_account_address_checksum(const public_address_outer_blob& bl) + { + const unsigned char* pbuf = reinterpret_cast<const unsigned char*>(&bl); + uint8_t summ = 0; + for(size_t i = 0; i!= sizeof(public_address_outer_blob)-1; i++) + summ += pbuf[i]; + + return summ; + } + //------------------------------------------------------------------------------------ + uint8_t get_account_integrated_address_checksum(const public_integrated_address_outer_blob& bl) + { + const unsigned char* pbuf = reinterpret_cast<const unsigned char*>(&bl); + uint8_t summ = 0; + for(size_t i = 0; i!= sizeof(public_integrated_address_outer_blob)-1; i++) + summ += pbuf[i]; + + return summ; + } + //----------------------------------------------------------------------- + std::string get_account_address_as_str( + bool testnet + , account_public_address const & adr + ) + { + uint64_t address_prefix = testnet ? + config::testnet::CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX : config::CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX; + + return tools::base58::encode_addr(address_prefix, t_serializable_object_to_blob(adr)); + } + //----------------------------------------------------------------------- + std::string get_account_integrated_address_as_str( + bool testnet + , account_public_address const & adr + , crypto::hash8 const & payment_id + ) + { + uint64_t integrated_address_prefix = testnet ? + config::testnet::CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX : config::CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX; + + integrated_address iadr = { + adr, payment_id + }; + return tools::base58::encode_addr(integrated_address_prefix, t_serializable_object_to_blob(iadr)); + } + //----------------------------------------------------------------------- + bool is_coinbase(const transaction& tx) + { + if(tx.vin.size() != 1) + return false; + + if(tx.vin[0].type() != typeid(txin_gen)) + return false; + + return true; + } + //----------------------------------------------------------------------- + bool get_account_integrated_address_from_str( + account_public_address& adr + , bool& has_payment_id + , crypto::hash8& payment_id + , bool testnet + , std::string const & str + ) + { + uint64_t address_prefix = testnet ? + config::testnet::CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX : config::CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX; + uint64_t integrated_address_prefix = testnet ? + config::testnet::CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX : config::CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX; + + if (2 * sizeof(public_address_outer_blob) != str.size()) + { + blobdata data; + uint64_t prefix; + if (!tools::base58::decode_addr(str, prefix, data)) + { + LOG_PRINT_L2("Invalid address format"); + return false; + } + + if (integrated_address_prefix == prefix) + { + has_payment_id = true; + } + else if (address_prefix == prefix) + { + has_payment_id = false; + } + else { + LOG_PRINT_L1("Wrong address prefix: " << prefix << ", expected " << address_prefix << " or " << integrated_address_prefix); + return false; + } + + if (has_payment_id) + { + integrated_address iadr; + if (!::serialization::parse_binary(data, iadr)) + { + LOG_PRINT_L1("Account public address keys can't be parsed"); + return false; + } + adr = iadr.adr; + payment_id = iadr.payment_id; + } + else + { + if (!::serialization::parse_binary(data, adr)) + { + LOG_PRINT_L1("Account public address keys can't be parsed"); + return false; + } + } + + if (!crypto::check_key(adr.m_spend_public_key) || !crypto::check_key(adr.m_view_public_key)) + { + LOG_PRINT_L1("Failed to validate address keys"); + return false; + } + } + else + { + // Old address format + std::string buff; + if(!string_tools::parse_hexstr_to_binbuff(str, buff)) + return false; + + if(buff.size()!=sizeof(public_address_outer_blob)) + { + LOG_PRINT_L1("Wrong public address size: " << buff.size() << ", expected size: " << sizeof(public_address_outer_blob)); + return false; + } + + public_address_outer_blob blob = *reinterpret_cast<const public_address_outer_blob*>(buff.data()); + + + if(blob.m_ver > CRYPTONOTE_PUBLIC_ADDRESS_TEXTBLOB_VER) + { + LOG_PRINT_L1("Unknown version of public address: " << blob.m_ver << ", expected " << CRYPTONOTE_PUBLIC_ADDRESS_TEXTBLOB_VER); + return false; + } + + if(blob.check_sum != get_account_address_checksum(blob)) + { + LOG_PRINT_L1("Wrong public address checksum"); + return false; + } + + //we success + adr = blob.m_address; + has_payment_id = false; + } + + return true; + } + //----------------------------------------------------------------------- + bool get_account_address_from_str( + account_public_address& adr + , bool testnet + , std::string const & str + ) + { + bool has_payment_id; + crypto::hash8 payment_id; + return get_account_integrated_address_from_str(adr, has_payment_id, payment_id, testnet, str); + } + //-------------------------------------------------------------------------------- + bool get_account_address_from_str_or_url( + cryptonote::account_public_address& address + , bool& has_payment_id + , crypto::hash8& payment_id + , bool testnet + , const std::string& str_or_url + ) + { + if (get_account_integrated_address_from_str(address, has_payment_id, payment_id, testnet, str_or_url)) + return true; + bool dnssec_valid; + std::string address_str = tools::dns_utils::get_account_address_as_str_from_url(str_or_url, dnssec_valid); + return !address_str.empty() && + get_account_integrated_address_from_str(address, has_payment_id, payment_id, testnet, address_str); + } + //-------------------------------------------------------------------------------- + bool get_account_address_from_str_or_url( + cryptonote::account_public_address& address + , bool testnet + , const std::string& str_or_url + ) + { + bool has_payment_id; + crypto::hash8 payment_id; + return get_account_address_from_str_or_url(address, has_payment_id, payment_id, testnet, str_or_url); + } + //-------------------------------------------------------------------------------- + bool operator ==(const cryptonote::transaction& a, const cryptonote::transaction& b) { + return cryptonote::get_transaction_hash(a) == cryptonote::get_transaction_hash(b); + } + + bool operator ==(const cryptonote::block& a, const cryptonote::block& b) { + return cryptonote::get_block_hash(a) == cryptonote::get_block_hash(b); + } +} + +//-------------------------------------------------------------------------------- +bool parse_hash256(const std::string str_hash, crypto::hash& hash) +{ + std::string buf; + bool res = epee::string_tools::parse_hexstr_to_binbuff(str_hash, buf); + if (!res || buf.size() != sizeof(crypto::hash)) + { + std::cout << "invalid hash format: <" << str_hash << '>' << std::endl; + return false; + } + else + { + buf.copy(reinterpret_cast<char *>(&hash), sizeof(crypto::hash)); + return true; + } +} |