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Merge pull request #2269

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635929ea protocol: add checks for top block hard fork version (moneromooo-monero)
7482253a epee: fixup KV_SERIALIZE_OPT to work in more cases (moneromooo-monero)
This commit is contained in:
Riccardo Spagni 2017-08-09 14:58:11 +02:00
commit f43d59d8b3
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GPG Key ID: 55432DF31CCD4FCD
4 changed files with 26 additions and 1 deletions
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5
contrib/epee/include/serialization/keyvalue_serialization.h
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@ -70,10 +70,13 @@ public: \
#define KV_SERIALIZE_N(varialble, val_name) \
epee::serialization::selector<is_store>::serialize(this_ref.varialble, stg, hparent_section, val_name);
template<typename T> inline void serialize_default(const T &t, T v) { }
template<typename T> inline void serialize_default(T &t, T v) { t = v; }
#define KV_SERIALIZE_OPT_N(variable, val_name, default_value) \
do { \
if (!epee::serialization::selector<is_store>::serialize(this_ref.variable, stg, hparent_section, val_name)) \
this_ref.variable = default_value; \
epee::serialize_default(this_ref.variable, default_value); \
} while (0);
#define KV_SERIALIZE_VAL_POD_AS_BLOB_FORCE_N(varialble, val_name) \

9
src/cryptonote_core/blockchain.h
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@ -745,6 +745,15 @@ namespace cryptonote
*/
uint8_t get_ideal_hard_fork_version(uint64_t height) const { return m_hardfork->get_ideal_version(height); }
/**
* @brief returns the actual hardfork version for a given block height
*
* @param height the height for which to check version info
*
* @return the version
*/
uint8_t get_hard_fork_version(uint64_t height) const { return m_hardfork->get(height); }
/**
* @brief get information about hardfork voting for a version
*

2
src/cryptonote_protocol/cryptonote_protocol_defs.h
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@ -195,10 +195,12 @@ namespace cryptonote
{
uint64_t current_height;
crypto::hash top_id;
uint8_t top_version;
BEGIN_KV_SERIALIZE_MAP()
KV_SERIALIZE(current_height)
KV_SERIALIZE_VAL_POD_AS_BLOB(top_id)
KV_SERIALIZE_OPT(top_version, (uint8_t)0)
END_KV_SERIALIZE_MAP()
};

11
src/cryptonote_protocol/cryptonote_protocol_handler.inl
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@ -256,6 +256,14 @@ namespace cryptonote
if(context.m_state == cryptonote_connection_context::state_synchronizing)
return true;
// from v6, if the peer advertises a top block version, reject if it's not what it should be (will only work if no voting)
const uint8_t version = m_core.get_blockchain_storage().get_ideal_hard_fork_version(hshd.current_height - 1);
if (version >= 6 && version != hshd.top_version)
{
LOG_DEBUG_CC(context, "Ignoring due to wrong top version (" << hshd.top_version << ", expected " << version);
return false;
}
uint64_t target = m_core.get_target_blockchain_height();
if (target == 0)
target = m_core.get_current_blockchain_height();
@ -297,6 +305,7 @@ namespace cryptonote
bool t_cryptonote_protocol_handler<t_core>::get_payload_sync_data(CORE_SYNC_DATA& hshd)
{
m_core.get_blockchain_top(hshd.current_height, hshd.top_id);
hshd.top_version = m_core.get_blockchain_storage().get_hard_fork_version(hshd.current_height);
hshd.current_height +=1;
return true;
}
@ -348,6 +357,7 @@ namespace cryptonote
{
LOG_PRINT_CCONTEXT_L0("Block verification failed, dropping connection");
m_p2p->drop_connection(context);
m_p2p->add_host_fail(context.m_remote_address);
m_block_queue.flush_spans(context.m_connection_id);
return 1;
}
@ -616,6 +626,7 @@ namespace cryptonote
{
LOG_PRINT_CCONTEXT_L0("Block verification failed, dropping connection");
m_p2p->drop_connection(context);
m_p2p->add_host_fail(context.m_remote_address);
m_block_queue.flush_spans(context.m_connection_id);
return 1;
}