mirror of https://github.com/oxen-io/oxen-core.git
309 lines
12 KiB
C++
309 lines
12 KiB
C++
// Copyright (c) 2014-2019, The Monero Project
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// Copyright (c) 2018, The Loki Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include "cryptonote_basic_impl.h"
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#include "epee/string_tools.h"
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#include "serialization/binary_utils.h"
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#include "serialization/container.h"
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#include "cryptonote_format_utils.h"
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#include "cryptonote_config.h"
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#include "common/base58.h"
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#include "crypto/hash.h"
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#include "epee/int-util.h"
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#include "common/oxen.h"
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#include <cfenv>
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#undef OXEN_DEFAULT_LOG_CATEGORY
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#define OXEN_DEFAULT_LOG_CATEGORY "cn"
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namespace cryptonote {
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struct integrated_address {
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account_public_address adr;
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crypto::hash8 payment_id;
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BEGIN_SERIALIZE_OBJECT()
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FIELD(adr)
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FIELD(payment_id)
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END_SERIALIZE()
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};
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/************************************************************************/
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/* Cryptonote helper functions */
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/************************************************************************/
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//-----------------------------------------------------------------------------------------------
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bool block_header_has_pulse_components(block_header const &blk_header)
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{
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constexpr cryptonote::pulse_random_value empty_random_value = {};
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bool bitset = blk_header.pulse.validator_bitset > 0;
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bool random_value = !(blk_header.pulse.random_value == empty_random_value);
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uint8_t hf_version = blk_header.major_version;
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bool result = hf_version >= cryptonote::network_version_16_pulse && (bitset || random_value);
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return result;
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}
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//-----------------------------------------------------------------------------------------------
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bool block_has_pulse_components(block const &blk)
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{
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bool signatures = blk.signatures.size();
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uint8_t hf_version = blk.major_version;
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bool result =
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(hf_version >= cryptonote::network_version_16_pulse && signatures) || block_header_has_pulse_components(blk);
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return result;
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}
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//-----------------------------------------------------------------------------------------------
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size_t get_min_block_weight(uint8_t version)
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{
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return CRYPTONOTE_BLOCK_GRANTED_FULL_REWARD_ZONE_V5;
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}
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//-----------------------------------------------------------------------------------------------
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size_t get_max_tx_size()
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{
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return CRYPTONOTE_MAX_TX_SIZE;
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}
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//-----------------------------------------------------------------------------------------------
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// TODO(oxen): Move into oxen_economy, this will require access to oxen::exp2
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uint64_t block_reward_unpenalized_formula_v7(uint64_t already_generated_coins, uint64_t height)
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{
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uint64_t emission_supply_component = (already_generated_coins * EMISSION_SUPPLY_MULTIPLIER) / EMISSION_SUPPLY_DIVISOR;
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uint64_t result = (EMISSION_LINEAR_BASE - emission_supply_component) / EMISSION_DIVISOR;
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// Check if we just overflowed
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if (emission_supply_component > EMISSION_LINEAR_BASE)
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result = 0;
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return result;
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}
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uint64_t block_reward_unpenalized_formula_v8(uint64_t height)
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{
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std::fesetround(FE_TONEAREST);
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uint64_t result = 28'000'000'000. + 100'000'000'000. / oxen::exp2(height / (720. * 90)); // halve every 90 days.
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return result;
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}
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bool get_base_block_reward(size_t median_weight, size_t current_block_weight, uint64_t already_generated_coins, uint64_t &reward, uint64_t &reward_unpenalized, uint8_t version, uint64_t height) {
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//premine reward
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if (already_generated_coins == 0)
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{
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reward = 22'500'000 * COIN;
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return true;
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}
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static_assert((TARGET_BLOCK_TIME % 1min) == 0s, "difficulty targets must be a multiple of a minute");
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uint64_t base_reward =
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version >= network_version_17 ? BLOCK_REWARD_HF17 :
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version >= network_version_15_ons ? BLOCK_REWARD_HF15 :
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version >= network_version_8 ? block_reward_unpenalized_formula_v8(height) :
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block_reward_unpenalized_formula_v7(already_generated_coins, height);
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uint64_t full_reward_zone = get_min_block_weight(version);
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//make it soft
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if (median_weight < full_reward_zone) {
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median_weight = full_reward_zone;
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}
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if (current_block_weight <= median_weight) {
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reward = reward_unpenalized = base_reward;
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return true;
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}
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if(current_block_weight > 2 * median_weight) {
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MERROR("Block cumulative weight is too big: " << current_block_weight << ", expected less than " << 2 * median_weight);
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return false;
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}
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assert(median_weight < std::numeric_limits<uint32_t>::max());
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assert(current_block_weight < std::numeric_limits<uint32_t>::max());
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uint64_t product_hi;
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// BUGFIX: 32-bit saturation bug (e.g. ARM7), the result was being
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// treated as 32-bit by default.
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uint64_t multiplicand = 2 * median_weight - current_block_weight;
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multiplicand *= current_block_weight;
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uint64_t product_lo = mul128(base_reward, multiplicand, &product_hi);
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uint64_t reward_hi;
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uint64_t reward_lo;
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div128_32(product_hi, product_lo, static_cast<uint32_t>(median_weight), &reward_hi, &reward_lo);
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div128_32(reward_hi, reward_lo, static_cast<uint32_t>(median_weight), &reward_hi, &reward_lo);
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assert(0 == reward_hi);
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assert(reward_lo < base_reward);
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reward_unpenalized = base_reward;
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reward = reward_lo;
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return true;
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}
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//------------------------------------------------------------------------------------
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batch_sn_payment::batch_sn_payment(std::string addr, uint64_t amt, cryptonote::network_type nettype):address(addr),amount(amt){
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cryptonote::get_account_address_from_str(address_info, nettype, address);
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};
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batch_sn_payment::batch_sn_payment(cryptonote::address_parse_info& addr_info, uint64_t amt, cryptonote::network_type nettype):address_info(addr_info),amount(amt){
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address = cryptonote::get_account_address_as_str(nettype, address_info.is_subaddress, address_info.address);
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};
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batch_sn_payment::batch_sn_payment(const cryptonote::account_public_address& addr, uint64_t amt, cryptonote::network_type nettype):amount(amt){
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address_info = cryptonote::address_parse_info{addr,0};
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address = cryptonote::get_account_address_as_str(nettype, address_info.is_subaddress, address_info.address);
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};
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//------------------------------------------------------------------------------------
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uint8_t get_account_address_checksum(const public_address_outer_blob& bl)
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{
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const unsigned char* pbuf = reinterpret_cast<const unsigned char*>(&bl);
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uint8_t summ = 0;
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for(size_t i = 0; i!= sizeof(public_address_outer_blob)-1; i++)
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summ += pbuf[i];
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return summ;
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}
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//------------------------------------------------------------------------------------
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uint8_t get_account_integrated_address_checksum(const public_integrated_address_outer_blob& bl)
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{
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const unsigned char* pbuf = reinterpret_cast<const unsigned char*>(&bl);
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uint8_t summ = 0;
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for(size_t i = 0; i!= sizeof(public_integrated_address_outer_blob)-1; i++)
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summ += pbuf[i];
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return summ;
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}
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//-----------------------------------------------------------------------
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std::string get_account_address_as_str(
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network_type nettype
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, bool subaddress
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, account_public_address const & adr
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)
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{
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uint64_t address_prefix = subaddress ? get_config(nettype).CRYPTONOTE_PUBLIC_SUBADDRESS_BASE58_PREFIX : get_config(nettype).CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX;
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return tools::base58::encode_addr(address_prefix, t_serializable_object_to_blob(adr));
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}
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//-----------------------------------------------------------------------
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std::string get_account_integrated_address_as_str(
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network_type nettype
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, account_public_address const & adr
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, crypto::hash8 const & payment_id
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)
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{
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uint64_t integrated_address_prefix = get_config(nettype).CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX;
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integrated_address iadr = {
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adr, payment_id
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};
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return tools::base58::encode_addr(integrated_address_prefix, t_serializable_object_to_blob(iadr));
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}
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//-----------------------------------------------------------------------
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bool is_coinbase(const transaction& tx)
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{
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return tx.vin.size() == 1 && std::holds_alternative<txin_gen>(tx.vin[0]);
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}
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//-----------------------------------------------------------------------
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bool get_account_address_from_str(
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address_parse_info& info
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, network_type nettype
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, const std::string_view str
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)
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{
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uint64_t address_prefix = get_config(nettype).CRYPTONOTE_PUBLIC_ADDRESS_BASE58_PREFIX;
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uint64_t integrated_address_prefix = get_config(nettype).CRYPTONOTE_PUBLIC_INTEGRATED_ADDRESS_BASE58_PREFIX;
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uint64_t subaddress_prefix = get_config(nettype).CRYPTONOTE_PUBLIC_SUBADDRESS_BASE58_PREFIX;
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blobdata data;
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uint64_t prefix{0};
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if (!tools::base58::decode_addr(str, prefix, data))
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{
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LOG_PRINT_L2("Invalid address format");
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return false;
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}
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if (integrated_address_prefix == prefix)
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{
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info.is_subaddress = false;
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info.has_payment_id = true;
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}
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else if (address_prefix == prefix)
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{
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info.is_subaddress = false;
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info.has_payment_id = false;
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}
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else if (subaddress_prefix == prefix)
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{
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info.is_subaddress = true;
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info.has_payment_id = false;
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}
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else {
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LOG_PRINT_L1("Wrong address prefix: " << prefix << ", expected " << address_prefix
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<< " or " << integrated_address_prefix
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<< " or " << subaddress_prefix);
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return false;
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}
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try {
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if (info.has_payment_id)
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{
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integrated_address iadr;
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serialization::parse_binary(data, iadr);
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info.address = iadr.adr;
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info.payment_id = iadr.payment_id;
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}
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else
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{
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serialization::parse_binary(data, info.address);
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}
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} catch (const std::exception& e) {
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LOG_PRINT_L1("Account public address keys can't be parsed: "s + e.what());
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return false;
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}
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if (!crypto::check_key(info.address.m_spend_public_key) || !crypto::check_key(info.address.m_view_public_key))
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{
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LOG_PRINT_L1("Failed to validate address keys");
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return false;
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}
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return true;
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}
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//--------------------------------------------------------------------------------
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bool operator ==(const cryptonote::transaction& a, const cryptonote::transaction& b) {
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return cryptonote::get_transaction_hash(a) == cryptonote::get_transaction_hash(b);
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}
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bool operator ==(const cryptonote::block& a, const cryptonote::block& b) {
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return cryptonote::get_block_hash(a) == cryptonote::get_block_hash(b);
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}
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}
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KV_SERIALIZE_MAP_CODE_BEGIN(cryptonote::address_parse_info)
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KV_SERIALIZE(address)
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KV_SERIALIZE(is_subaddress)
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KV_SERIALIZE(has_payment_id)
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KV_SERIALIZE_VAL_POD_AS_BLOB_FORCE(payment_id)
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KV_SERIALIZE_MAP_CODE_END()
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