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net: move BanMan to its own files

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This commit is contained in:
Cory Fields
2017-10-05 16:40:43 -04:00
committed by Carl Dong
parent d0469b2e93
commit af3503d903
13 changed files with 276 additions and 237 deletions
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49
src/net.h
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@@ -37,6 +37,7 @@
class CScheduler;
class CNode;
class BanMan;
/** Time between pings automatically sent out for latency probing and keepalive (in seconds). */
static const int PING_INTERVAL = 2 * 60;
@@ -85,9 +86,6 @@ static const bool DEFAULT_FORCEDNSSEED = false;
static const size_t DEFAULT_MAXRECEIVEBUFFER = 5 * 1000;
static const size_t DEFAULT_MAXSENDBUFFER = 1 * 1000;
// NOTE: When adjusting this, update rpcnet:setban's help ("24h")
static constexpr unsigned int DEFAULT_MISBEHAVING_BANTIME = 60 * 60 * 24; // Default 24-hour ban
typedef int64_t NodeId;
struct AddedNodeInfo
@@ -115,51 +113,6 @@ struct CSerializedNetMsg
};
class BanMan
{
public:
// Denial-of-service detection/prevention
// The idea is to detect peers that are behaving
// badly and disconnect/ban them, but do it in a
// one-coding-mistake-won't-shatter-the-entire-network
// way.
// IMPORTANT: There should be nothing I can give a
// node that it will forward on that will make that
// node's peers drop it. If there is, an attacker
// can isolate a node and/or try to split the network.
// Dropping a node for sending stuff that is invalid
// now but might be valid in a later version is also
// dangerous, because it can cause a network split
// between nodes running old code and nodes running
// new code.
~BanMan();
BanMan(fs::path ban_file, CClientUIInterface* client_interface, int64_t default_ban_time);
void Ban(const CNetAddr& netAddr, const BanReason& reason, int64_t bantimeoffset = 0, bool sinceUnixEpoch = false);
void Ban(const CSubNet& subNet, const BanReason& reason, int64_t bantimeoffset = 0, bool sinceUnixEpoch = false);
void ClearBanned(); // needed for unit testing
bool IsBanned(CNetAddr ip);
bool IsBanned(CSubNet subnet);
bool Unban(const CNetAddr &ip);
bool Unban(const CSubNet &ip);
void GetBanned(banmap_t &banmap);
void DumpBanlist();
private:
void SetBanned(const banmap_t &banmap);
bool BannedSetIsDirty();
//!set the "dirty" flag for the banlist
void SetBannedSetDirty(bool dirty=true);
//!clean unused entries (if bantime has expired)
void SweepBanned();
banmap_t setBanned;
CCriticalSection cs_setBanned;
bool setBannedIsDirty;
CClientUIInterface* clientInterface = nullptr;
CBanDB m_ban_db;
int64_t m_default_ban_time;
};
class NetEventsInterface;
class CConnman
{