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oxen-core/src/cryptonote_core/service_node_voting.cpp

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// Copyright (c) 2018, The Loki 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.
#include "service_node_voting.h"
#include "service_node_list.h"
#include "cryptonote_basic/tx_extra.h"
#include "cryptonote_basic/cryptonote_format_utils.h"
#include "cryptonote_basic/verification_context.h"
#include "cryptonote_basic/connection_context.h"
#include "cryptonote_protocol/cryptonote_protocol_defs.h"
#include "checkpoints/checkpoints.h"
#include "common/util.h"
#include "common/hex.h"
#include "epee/misc_log_ex.h"
#include "epee/string_tools.h"
#include <string>
#include <vector>
#undef OXEN_DEFAULT_LOG_CATEGORY
#define OXEN_DEFAULT_LOG_CATEGORY "service_nodes"
namespace service_nodes
{
static crypto::hash make_state_change_vote_hash(uint64_t block_height, uint32_t service_node_index, new_state state)
{
uint16_t state_int = static_cast<uint16_t>(state);
auto buf = tools::memcpy_le(block_height, service_node_index, state_int);
auto size = buf.size();
if (state == new_state::deregister)
size -= sizeof(state_int); // Don't include state value for deregs (to be backwards compatible with pre-v12 dereg votes)
crypto::hash result;
crypto::cn_fast_hash(buf.data(), size, result);
return result;
}
crypto::signature make_signature_from_vote(quorum_vote_t const &vote, const service_node_keys &keys)
{
crypto::signature result = {};
switch(vote.type)
{
default:
{
LOG_PRINT_L1("Unhandled vote type with value: " << (int)vote.type);
assert("Unhandled vote type" == 0);
return result;
};
case quorum_type::obligations:
{
crypto::hash hash = make_state_change_vote_hash(vote.block_height, vote.state_change.worker_index, vote.state_change.state);
crypto::generate_signature(hash, keys.pub, keys.key, result);
}
break;
case quorum_type::checkpointing:
{
crypto::hash hash = vote.checkpoint.block_hash;
crypto::generate_signature(hash, keys.pub, keys.key, result);
}
break;
}
return result;
}
crypto::signature make_signature_from_tx_state_change(cryptonote::tx_extra_service_node_state_change const &state_change, const service_node_keys &keys)
{
crypto::signature result;
crypto::hash hash = make_state_change_vote_hash(state_change.block_height, state_change.service_node_index, state_change.state);
crypto::generate_signature(hash, keys.pub, keys.key, result);
return result;
}
static bool bounds_check_worker_index(service_nodes::quorum const &quorum, uint32_t worker_index, cryptonote::vote_verification_context *vvc)
{
if (worker_index >= quorum.workers.size())
{
if (vvc) vvc->m_worker_index_out_of_bounds = true;
LOG_PRINT_L1("Quorum worker index in was out of bounds: " << worker_index << ", expected to be in range of: [0, " << quorum.workers.size() << ")");
return false;
}
return true;
}
static bool bounds_check_validator_index(service_nodes::quorum const &quorum, uint32_t validator_index, cryptonote::vote_verification_context *vvc)
{
if (validator_index >= quorum.validators.size())
{
if (vvc) vvc->m_validator_index_out_of_bounds = true;
LOG_PRINT_L1("Validator's index was out of bounds: " << validator_index << ", expected to be in range of: [0, " << quorum.validators.size() << ")");
return false;
}
return true;
}
static bool bad_tx(cryptonote::tx_verification_context &tvc) {
tvc.m_verifivation_failed = true;
return false;
}
bool verify_tx_state_change(const cryptonote::tx_extra_service_node_state_change &state_change,
uint64_t latest_height,
cryptonote::tx_verification_context &tvc,
const service_nodes::quorum &quorum,
const uint8_t hf_version)
{
auto &vvc = tvc.m_vote_ctx;
if (state_change.state != new_state::deregister && hf_version < cryptonote::network_version_12_checkpointing)
{
LOG_PRINT_L1("Non-deregister state changes are invalid before v12");
return bad_tx(tvc);
}
if (state_change.state >= new_state::_count)
{
LOG_PRINT_L1("Unknown state change to new state: " << static_cast<uint16_t>(state_change.state));
return bad_tx(tvc);
}
if (state_change.votes.size() < service_nodes::STATE_CHANGE_MIN_VOTES_TO_CHANGE_STATE)
{
LOG_PRINT_L1("Not enough votes");
vvc.m_not_enough_votes = true;
return bad_tx(tvc);
}
if (state_change.votes.size() > service_nodes::STATE_CHANGE_QUORUM_SIZE)
{
LOG_PRINT_L1("Too many votes");
return bad_tx(tvc);
}
if (!bounds_check_worker_index(quorum, state_change.service_node_index, &vvc))
return bad_tx(tvc);
// Check if state_change is too old or too new to hold onto
{
if (state_change.block_height >= latest_height)
{
LOG_PRINT_L1("Received state change tx for height: " << state_change.block_height
<< " and service node: " << state_change.service_node_index
<< ", is newer than current height: " << latest_height
<< " blocks and has been rejected.");
vvc.m_invalid_block_height = true;
if (state_change.block_height >= latest_height + VOTE_OR_TX_VERIFY_HEIGHT_BUFFER)
tvc.m_verifivation_failed = true;
return false;
}
if (latest_height >= state_change.block_height + service_nodes::STATE_CHANGE_TX_LIFETIME_IN_BLOCKS)
{
LOG_PRINT_L1("Received state change tx for height: "
<< state_change.block_height << " and service node: " << state_change.service_node_index
<< ", is older than: " << service_nodes::STATE_CHANGE_TX_LIFETIME_IN_BLOCKS
<< " (current height: " << latest_height << ") "
<< "blocks and has been rejected.");
vvc.m_invalid_block_height = true;
if (latest_height >= state_change.block_height + (service_nodes::STATE_CHANGE_TX_LIFETIME_IN_BLOCKS + VOTE_OR_TX_VERIFY_HEIGHT_BUFFER))
tvc.m_verifivation_failed = true;
return false;
}
}
crypto::hash const hash = make_state_change_vote_hash(state_change.block_height, state_change.service_node_index, state_change.state);
std::array<int, service_nodes::STATE_CHANGE_QUORUM_SIZE> validator_set = {};
int validator_index_tracker = -1;
for (const auto &vote : state_change.votes)
{
if (hf_version >= cryptonote::network_version_13_enforce_checkpoints) // NOTE: After HF13, votes must be stored in ascending order
{
if (validator_index_tracker >= static_cast<int>(vote.validator_index))
{
vvc.m_votes_not_sorted = true;
LOG_PRINT_L1("Vote validator index is not stored in ascending order, prev validator index: "
<< validator_index_tracker << ", curr index: " << vote.validator_index);
return bad_tx(tvc);
}
validator_index_tracker = vote.validator_index;
}
if (!bounds_check_validator_index(quorum, vote.validator_index, &vvc))
return bad_tx(tvc);
if (++validator_set[vote.validator_index] > 1)
{
vvc.m_duplicate_voters = true;
LOG_PRINT_L1("Voter quorum index is duplicated: " << vote.validator_index);
return bad_tx(tvc);
}
crypto::public_key const &key = quorum.validators[vote.validator_index];
if (!crypto::check_signature(hash, key, vote.signature))
{
LOG_PRINT_L1("Invalid signature for voter " << vote.validator_index << "/" << key);
vvc.m_signature_not_valid = true;
return bad_tx(tvc);
}
}
return true;
}
bool verify_quorum_signatures(service_nodes::quorum const &quorum, service_nodes::quorum_type type, uint8_t hf_version, uint64_t height, crypto::hash const &hash, std::vector<quorum_signature> const &signatures, const cryptonote::block* block)
{
bool enforce_vote_ordering = true;
constexpr size_t MAX_QUORUM_SIZE = std::max(CHECKPOINT_QUORUM_SIZE, PULSE_QUORUM_NUM_VALIDATORS);
std::array<size_t, MAX_QUORUM_SIZE> unique_vote_set = {};
switch(type)
{
default:
assert(!"Invalid Code Path");
break;
// TODO(oxen): DRY quorum verification with state change obligations.
case quorum_type::checkpointing:
{
if (signatures.size() < service_nodes::CHECKPOINT_MIN_VOTES)
{
MGINFO("Checkpoint has insufficient signatures to be considered at height: " << height);
return false;
}
if (signatures.size() > service_nodes::CHECKPOINT_QUORUM_SIZE)
{
MGINFO("Checkpoint has too many signatures to be considered at height: " << height);
return false;
}
enforce_vote_ordering = hf_version >= cryptonote::network_version_13_enforce_checkpoints;
}
break;
case quorum_type::pulse:
{
if (signatures.size() != PULSE_BLOCK_REQUIRED_SIGNATURES)
{
MGINFO("Pulse block has " << signatures.size() << " signatures but requires " << PULSE_BLOCK_REQUIRED_SIGNATURES);
return false;
}
if (!block)
{
MGINFO("Internal Error: Wrong type passed in any object, expected block.");
return false;
}
if (block->pulse.validator_bitset >= (1 << PULSE_QUORUM_NUM_VALIDATORS))
{
auto mask = std::bitset<sizeof(pulse_validator_bit_mask()) * 8>(pulse_validator_bit_mask());
auto other = std::bitset<sizeof(pulse_validator_bit_mask()) * 8>(block->pulse.validator_bitset);
MGINFO("Pulse block specifies validator participation bits out of bounds. Expected the bit mask: " << mask << ", block: " << other);
return false;
}
}
break;
}
for (size_t i = 0; i < signatures.size(); i++)
{
service_nodes::quorum_signature const &quorum_signature = signatures[i];
if (enforce_vote_ordering && i < (signatures.size() - 1))
{
auto curr = signatures[i].voter_index;
auto next = signatures[i + 1].voter_index;
if (curr >= next)
{
MGINFO("Voters in signatures are not given in ascending order, failed verification at height: " << height);
return false;
}
}
if (!bounds_check_validator_index(quorum, quorum_signature.voter_index, nullptr))
return false;
if (type == quorum_type::pulse)
{
if (!block)
{
MGINFO("Internal Error: Wrong type passed in any object, expected block.");
return false;
}
uint16_t bit = 1 << quorum_signature.voter_index;
if ((block->pulse.validator_bitset & bit) == 0)
{
MGINFO("Received pulse signature from validator " << static_cast<int>(quorum_signature.voter_index) << " that is not participating in round " << static_cast<int>(block->pulse.round));
return false;
}
}
crypto::public_key const &key = quorum.validators[quorum_signature.voter_index];
if (quorum_signature.voter_index >= unique_vote_set.size())
{
MGINFO("Internal Error: Voter Index indexes out of bounds of the vote set, index: " << quorum_signature.voter_index << "vote set size: " << unique_vote_set.size());
return false;
}
if (unique_vote_set[quorum_signature.voter_index]++)
{
MGINFO("Voter: " << tools::type_to_hex(key) << ", quorum index is duplicated: " << quorum_signature.voter_index << ", failed verification at height: " << height);
return false;
}
if (!crypto::check_signature(hash, key, quorum_signature.signature))
{
MGINFO("Incorrect signature for vote, failed verification at height: " << height << " for voter: " << key << "\n" << quorum);
return false;
}
}
return true;
}
bool verify_pulse_quorum_sizes(service_nodes::quorum const &quorum)
{
bool result = quorum.workers.size() == 1 && quorum.validators.size() == PULSE_QUORUM_NUM_VALIDATORS;
return result;
}
bool verify_checkpoint(uint8_t hf_version, cryptonote::checkpoint_t const &checkpoint, service_nodes::quorum const &quorum)
{
if (checkpoint.type == cryptonote::checkpoint_type::service_node)
{
if ((checkpoint.height % service_nodes::CHECKPOINT_INTERVAL) != 0)
{
LOG_PRINT_L1("Checkpoint given but not expecting a checkpoint at height: " << checkpoint.height);
return false;
}
if (!verify_quorum_signatures(quorum, quorum_type::checkpointing, hf_version, checkpoint.height, checkpoint.block_hash, checkpoint.signatures))
{
LOG_PRINT_L1("Checkpoint failed signature validation at block " << checkpoint.height << " " << checkpoint.block_hash);
return false;
}
}
else
{
if (checkpoint.signatures.size() != 0)
{
LOG_PRINT_L1("Non service-node checkpoints should have no signatures, checkpoint failed at height: " << checkpoint.height);
return false;
}
}
return true;
}
quorum_vote_t make_state_change_vote(uint64_t block_height, uint16_t validator_index, uint16_t worker_index, new_state state, uint16_t reason, const service_node_keys &keys)
{
quorum_vote_t result = {};
result.type = quorum_type::obligations;
result.block_height = block_height;
result.group = quorum_group::validator;
result.index_in_group = validator_index;
result.state_change.worker_index = worker_index;
result.state_change.state = state;
result.state_change.reason = reason;
result.signature = make_signature_from_vote(result, keys);
return result;
}
quorum_vote_t make_checkpointing_vote(uint8_t hf_version, crypto::hash const &block_hash, uint64_t block_height, uint16_t index_in_quorum, const service_node_keys &keys)
{
quorum_vote_t result = {};
result.type = quorum_type::checkpointing;
result.checkpoint.block_hash = block_hash;
result.block_height = block_height;
result.group = quorum_group::validator;
result.index_in_group = index_in_quorum;
result.signature = make_signature_from_vote(result, keys);
return result;
}
cryptonote::checkpoint_t make_empty_service_node_checkpoint(crypto::hash const &block_hash, uint64_t height)
{
cryptonote::checkpoint_t result = {};
result.type = cryptonote::checkpoint_type::service_node;
result.height = height;
result.block_hash = block_hash;
return result;
}
bool verify_vote_age(const quorum_vote_t& vote, uint64_t latest_height, cryptonote::vote_verification_context &vvc)
{
bool result = true;
bool height_in_buffer = false;
if (latest_height > vote.block_height + VOTE_LIFETIME)
{
height_in_buffer = latest_height <= vote.block_height + (VOTE_LIFETIME + VOTE_OR_TX_VERIFY_HEIGHT_BUFFER);
LOG_PRINT_L1("Received vote for height: " << vote.block_height << ", is older than: " << VOTE_LIFETIME
<< " blocks and has been rejected.");
vvc.m_invalid_block_height = true;
}
else if (vote.block_height > latest_height)
{
height_in_buffer = vote.block_height <= latest_height + VOTE_OR_TX_VERIFY_HEIGHT_BUFFER;
LOG_PRINT_L1("Received vote for height: " << vote.block_height << ", is newer than: " << latest_height
<< " (latest block height) and has been rejected.");
vvc.m_invalid_block_height = true;
}
if (vvc.m_invalid_block_height)
{
vvc.m_verification_failed = !height_in_buffer;
result = false;
}
return result;
}
bool verify_vote_signature(uint8_t hf_version, const quorum_vote_t &vote, cryptonote::vote_verification_context &vvc, const service_nodes::quorum &quorum)
{
bool result = true;
if (vote.type > tools::enum_top<quorum_type>)
{
vvc.m_invalid_vote_type = true;
result = false;
}
if (vote.group > quorum_group::worker || vote.group < quorum_group::validator)
{
vvc.m_incorrect_voting_group = true;
result = false;
}
if (!result)
return result;
if (vote.group == quorum_group::validator)
result = bounds_check_validator_index(quorum, vote.index_in_group, &vvc);
else
result = bounds_check_worker_index(quorum, vote.index_in_group, &vvc);
if (!result)
return result;
crypto::public_key key = crypto::null_pkey;
crypto::hash hash = crypto::null_hash;
switch(vote.type)
{
default:
{
LOG_PRINT_L1("Unhandled vote type with value: " << (int)vote.type);
assert("Unhandled vote type" == 0);
return false;
};
case quorum_type::obligations:
{
if (vote.group != quorum_group::validator)
{
LOG_PRINT_L1("Vote received specifies incorrect voting group, expected vote from validator");
vvc.m_incorrect_voting_group = true;
result = false;
}
else
{
key = quorum.validators[vote.index_in_group];
hash = make_state_change_vote_hash(vote.block_height, vote.state_change.worker_index, vote.state_change.state);
result = bounds_check_worker_index(quorum, vote.state_change.worker_index, &vvc);
}
}
break;
case quorum_type::checkpointing:
{
if (vote.group != quorum_group::validator)
{
LOG_PRINT_L1("Vote received specifies incorrect voting group");
vvc.m_incorrect_voting_group = true;
result = false;
}
else
{
key = quorum.validators[vote.index_in_group];
hash = vote.checkpoint.block_hash;
}
}
break;
}
if (!result)
return result;
result = crypto::check_signature(hash, key, vote.signature);
if (result)
MDEBUG("Signature accepted for " << vote.type << " voter " << vote.index_in_group << "/" << key
<< (vote.type == quorum_type::obligations ? " voting for worker " + std::to_string(vote.state_change.worker_index) : "")
<< " at height " << vote.block_height);
else
vvc.m_signature_not_valid = true;
return result;
}
template <typename T>
static std::vector<pool_vote_entry> *find_vote_in_pool(std::vector<T> &pool, const quorum_vote_t &vote, bool create) {
T typed_vote{vote};
auto it = std::find(pool.begin(), pool.end(), typed_vote);
if (it != pool.end())
return &it->votes;
if (!create)
return nullptr;
pool.push_back(std::move(typed_vote));
return &pool.back().votes;
}
std::vector<pool_vote_entry> *voting_pool::find_vote_pool(const quorum_vote_t &find_vote, bool create_if_not_found) {
switch(find_vote.type)
{
default:
LOG_PRINT_L1("Unhandled find_vote type with value: " << (int)find_vote.type);
assert("Unhandled find_vote type" == 0);
return nullptr;
case quorum_type::obligations:
return find_vote_in_pool(m_obligations_pool, find_vote, create_if_not_found);
case quorum_type::checkpointing:
return find_vote_in_pool(m_checkpoint_pool, find_vote, create_if_not_found);
}
}
void voting_pool::set_relayed(const std::vector<quorum_vote_t>& votes)
{
std::unique_lock lock{m_lock};
const time_t now = time(NULL);
for (const quorum_vote_t &find_vote : votes)
{
std::vector<pool_vote_entry> *vote_pool = find_vote_pool(find_vote);
if (vote_pool) // We found the group that this vote belongs to
{
auto vote = std::find_if(vote_pool->begin(), vote_pool->end(), [&find_vote](pool_vote_entry const &entry) {
return (find_vote.index_in_group == entry.vote.index_in_group);
});
if (vote != vote_pool->end())
{
vote->time_last_sent_p2p = now;
}
}
}
}
template <typename T>
static void append_relayable_votes(std::vector<quorum_vote_t> &result, const T &pool, const uint64_t max_last_sent, uint64_t min_height) {
for (const auto &pool_entry : pool)
for (const auto &vote_entry : pool_entry.votes)
if (vote_entry.vote.block_height >= min_height && vote_entry.time_last_sent_p2p <= max_last_sent)
result.push_back(vote_entry.vote);
}
std::vector<quorum_vote_t> voting_pool::get_relayable_votes(uint64_t height, uint8_t hf_version, bool quorum_relay) const
{
std::unique_lock lock{m_lock};
// TODO(doyle): Rate-limiting: A better threshold value that follows suite with transaction relay time back-off
constexpr uint64_t TIME_BETWEEN_RELAY = 60 * 2;
const uint64_t max_last_sent = static_cast<uint64_t>(time(nullptr)) - TIME_BETWEEN_RELAY;
const uint64_t min_height = height > VOTE_LIFETIME ? height - VOTE_LIFETIME : 0;
std::vector<quorum_vote_t> result;
if (quorum_relay && hf_version < cryptonote::network_version_14_blink)
return result; // no quorum relaying before HF14
if (hf_version < cryptonote::network_version_14_blink || quorum_relay)
append_relayable_votes(result, m_obligations_pool, max_last_sent, min_height);
if (hf_version < cryptonote::network_version_14_blink || !quorum_relay)
append_relayable_votes(result, m_checkpoint_pool, max_last_sent, min_height);
return result;
}
// return: True if the vote was unique
static bool add_vote_to_pool_if_unique(std::vector<pool_vote_entry> &votes, quorum_vote_t const &vote)
{
auto vote_it = std::lower_bound(
votes.begin(), votes.end(), vote, [](pool_vote_entry const &pool_entry, quorum_vote_t const &vote) {
assert(pool_entry.vote.group == vote.group);
return pool_entry.vote.index_in_group < vote.index_in_group;
});
if (vote_it == votes.end() || vote_it->vote.index_in_group != vote.index_in_group)
{
votes.insert(vote_it, {vote});
return true;
}
return false;
}
std::vector<pool_vote_entry> voting_pool::add_pool_vote_if_unique(const quorum_vote_t& vote, cryptonote::vote_verification_context& vvc)
{
std::unique_lock lock{m_lock};
auto *votes = find_vote_pool(vote, /*create_if_not_found=*/ true);
if (!votes)
return {};
vvc.m_added_to_pool = add_vote_to_pool_if_unique(*votes, vote);
return *votes;
}
void voting_pool::remove_used_votes(std::vector<cryptonote::transaction> const &txs, uint8_t hard_fork_version)
{
// TODO(doyle): Cull checkpoint votes
std::unique_lock lock{m_lock};
if (m_obligations_pool.empty())
return;
for (const auto &tx : txs)
{
if (tx.type != cryptonote::txtype::state_change)
continue;
cryptonote::tx_extra_service_node_state_change state_change;
if (!get_service_node_state_change_from_tx_extra(tx.extra, state_change, hard_fork_version))
{
LOG_ERROR("Could not get state change from tx, possibly corrupt tx");
continue;
}
auto it = std::find(m_obligations_pool.begin(), m_obligations_pool.end(), state_change);
if (it != m_obligations_pool.end())
m_obligations_pool.erase(it);
}
}
template <typename T>
static void cull_votes(std::vector<T> &vote_pool, uint64_t min_height, uint64_t max_height)
{
for (auto it = vote_pool.begin(); it != vote_pool.end(); )
{
const T &pool_entry = *it;
if (pool_entry.height < min_height || pool_entry.height > max_height)
it = vote_pool.erase(it);
else
++it;
}
}
void voting_pool::remove_expired_votes(uint64_t height)
{
std::unique_lock lock{m_lock};
uint64_t min_height = (height < VOTE_LIFETIME) ? 0 : height - VOTE_LIFETIME;
cull_votes(m_obligations_pool, min_height, height);
cull_votes(m_checkpoint_pool, min_height, height);
}
bool voting_pool::received_checkpoint_vote(uint64_t height, size_t index_in_quorum) const
{
auto pool_it = std::find_if(m_checkpoint_pool.begin(),
m_checkpoint_pool.end(),
[height](checkpoint_pool_entry const &entry) { return entry.height == height; });
if (pool_it == m_checkpoint_pool.end())
return false;
for (auto it = pool_it->votes.begin(); it != pool_it->votes.end(); it++)
{
if (it->vote.index_in_group == index_in_quorum)
return true;
}
return false;
}
KV_SERIALIZE_MAP_CODE_BEGIN(quorum_vote_t)
KV_SERIALIZE(version)
KV_SERIALIZE_ENUM(type)
KV_SERIALIZE(block_height)
KV_SERIALIZE_ENUM(group)
KV_SERIALIZE(index_in_group)
KV_SERIALIZE_VAL_POD_AS_BLOB(signature)
if (this_ref.type == quorum_type::checkpointing)
{
KV_SERIALIZE_VAL_POD_AS_BLOB_N(checkpoint.block_hash, "checkpoint")
}
else
{
KV_SERIALIZE(state_change.worker_index)
KV_SERIALIZE_ENUM(state_change.state)
}
KV_SERIALIZE_MAP_CODE_END()
} // namespace service_nodes
namespace cryptonote {
KV_SERIALIZE_MAP_CODE_BEGIN(NOTIFY_NEW_SERVICE_NODE_VOTE::request)
KV_SERIALIZE(votes)
KV_SERIALIZE_MAP_CODE_END()
}
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