aboutsummaryrefslogtreecommitdiff
path: root/src/cryptonote_core/checkpoints.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/cryptonote_core/checkpoints.h')
-rw-r--r--src/cryptonote_core/checkpoints.h181
1 files changed, 9 insertions, 172 deletions
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;
};
}