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// Copyright (c) 2009-2010 Satoshi Nakamoto
// Copyright (c) 2009-2019 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_ADDRDB_H
#define BITCOIN_ADDRDB_H
#include <fs.h>
#include <net_types.h> // For banmap_t
#include <serialize.h>
#include <string>
#include <vector>
class CAddress;
class CAddrMan;
class CDataStream;
class CBanEntry
{
public:
static const int CURRENT_VERSION=1;
int nVersion;
int64_t nCreateTime;
int64_t nBanUntil;
CBanEntry()
{
SetNull();
}
explicit CBanEntry(int64_t nCreateTimeIn)
{
SetNull();
nCreateTime = nCreateTimeIn;
}
SERIALIZE_METHODS(CBanEntry, obj)
{
uint8_t ban_reason = 2; //! For backward compatibility
READWRITE(obj.nVersion, obj.nCreateTime, obj.nBanUntil, ban_reason);
}
void SetNull()
{
nVersion = CBanEntry::CURRENT_VERSION;
nCreateTime = 0;
nBanUntil = 0;
}
};
/** Access to the (IP) address database (peers.dat) */
class CAddrDB
{
private:
fs::path pathAddr;
public:
CAddrDB();
bool Write(const CAddrMan& addr);
bool Read(CAddrMan& addr);
static bool Read(CAddrMan& addr, CDataStream& ssPeers);
};
/** Access to the banlist database (banlist.dat) */
class CBanDB
{
private:
const fs::path m_ban_list_path;
public:
explicit CBanDB(fs::path ban_list_path);
bool Write(const banmap_t& banSet);
bool Read(banmap_t& banSet);
};
/**
* Dump the anchor IP address database (anchors.dat)
*
* Anchors are last known outgoing block-relay-only peers that are
* tried to re-connect to on startup.
*/
void DumpAnchors(const fs::path& anchors_db_path, const std::vector<CAddress>& anchors);
/**
* Read the anchor IP address database (anchors.dat)
*
* Deleting anchors.dat is intentional as it avoids renewed peering to anchors after
* an unclean shutdown and thus potential exploitation of the anchor peer policy.
*/
std::vector<CAddress> ReadAnchors(const fs::path& anchors_db_path);
#endif // BITCOIN_ADDRDB_H
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