Bitcoin ABC  0.22.12
P2P Digital Currency
Classes | Functions | Variables
net_processing.cpp File Reference
#include <net_processing.h>
#include <addrman.h>
#include <avalanche/processor.h>
#include <avalanche/proof.h>
#include <avalanche/validation.h>
#include <banman.h>
#include <blockdb.h>
#include <blockencodings.h>
#include <blockfilter.h>
#include <blockvalidity.h>
#include <chain.h>
#include <chainparams.h>
#include <config.h>
#include <consensus/validation.h>
#include <hash.h>
#include <index/blockfilterindex.h>
#include <merkleblock.h>
#include <netbase.h>
#include <netmessagemaker.h>
#include <policy/fees.h>
#include <policy/policy.h>
#include <primitives/block.h>
#include <primitives/transaction.h>
#include <random.h>
#include <reverse_iterator.h>
#include <scheduler.h>
#include <tinyformat.h>
#include <txmempool.h>
#include <util/check.h>
#include <util/strencodings.h>
#include <util/system.h>
#include <validation.h>
#include <memory>
#include <typeinfo>
Include dependency graph for net_processing.cpp:

Go to the source code of this file.

Classes

struct  COrphanTx
 
class  CNetProcessingCleanup
 

Functions

std::map< TxId, COrphanTx > mapOrphanTransactions GUARDED_BY (g_cs_orphans)
 
void EraseOrphansFor (NodeId peer)
 
void UpdateLastBlockAnnounceTime (NodeId node, int64_t time_in_seconds)
 
bool GetNodeStateStats (NodeId nodeid, CNodeStateStats &stats)
 Get statistics from node state. More...
 
static void AddToCompactExtraTransactions (const CTransactionRef &tx) EXCLUSIVE_LOCKS_REQUIRED(g_cs_orphans)
 
bool AddOrphanTx (const CTransactionRef &tx, NodeId peer) EXCLUSIVE_LOCKS_REQUIRED(g_cs_orphans)
 
static int EraseOrphanTx (const TxId id) EXCLUSIVE_LOCKS_REQUIRED(g_cs_orphans)
 
unsigned int LimitOrphanTxSize (unsigned int nMaxOrphans)
 
void Misbehaving (const NodeId pnode, const int howmuch, const std::string &message)
 Increment peer's misbehavior score. More...
 
static void Misbehaving (const CNode &node, int howmuch, const std::string &message)
 
static bool TxRelayMayResultInDisconnect (const TxValidationState &state)
 Returns true if the given validation state result may result in a peer banning/disconnecting us. More...
 
static bool MaybePunishNodeForBlock (NodeId nodeid, const BlockValidationState &state, bool via_compact_block, const std::string &message="")
 Potentially ban a node based on the contents of a BlockValidationState object. More...
 
static bool MaybePunishNodeForTx (NodeId nodeid, const TxValidationState &state, const std::string &message="")
 Potentially ban a node based on the contents of a TxValidationState object. More...
 
static bool BlockRequestAllowed (const CBlockIndex *pindex, const Consensus::Params &consensusParams) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 
static std::shared_ptr< const CBlock > most_recent_block GUARDED_BY (cs_most_recent_block)
 
static bool AlreadyHave (const CInv &inv, const CTxMemPool &mempool) EXCLUSIVE_LOCKS_REQUIRED(cs_main)
 
void RelayTransaction (const TxId &txid, const CConnman &connman)
 Relay transaction to every node. More...
 
static void RelayAddress (const CAddress &addr, bool fReachable, const CConnman &connman)
 
static void ProcessGetBlockData (const Config &config, CNode &pfrom, const CInv &inv, CConnman &connman, const std::atomic< bool > &interruptMsgProc)
 
static void ProcessGetData (const Config &config, CNode &pfrom, CConnman &connman, const CTxMemPool &mempool, const std::atomic< bool > &interruptMsgProc) LOCKS_EXCLUDED(cs_main)
 
static void SendBlockTransactions (const CBlock &block, const BlockTransactionsRequest &req, CNode &pfrom, CConnman &connman)
 
static void ProcessHeadersMessage (const Config &config, CNode &pfrom, CConnman &connman, CTxMemPool &mempool, ChainstateManager &chainman, const std::vector< CBlockHeader > &headers, bool via_compact_block)
 
static void ProcessOrphanTx (const Config &config, CConnman &connman, CTxMemPool &mempool, std::set< TxId > &orphan_work_set) EXCLUSIVE_LOCKS_REQUIRED(cs_main
 
 AssertLockHeld (g_cs_orphans)
 
 while (!done &&!orphan_work_set.empty())
 
static bool PrepareBlockFilterRequest (CNode &peer, const CChainParams &chain_params, BlockFilterType filter_type, uint32_t start_height, const BlockHash &stop_hash, uint32_t max_height_diff, const CBlockIndex *&stop_index, BlockFilterIndex *&filter_index)
 Validation logic for compact filters request handling. More...
 
static void ProcessGetCFilters (CNode &peer, CDataStream &vRecv, const CChainParams &chain_params, CConnman &connman)
 Handle a cfilters request. More...
 
static void ProcessGetCFHeaders (CNode &peer, CDataStream &vRecv, const CChainParams &chain_params, CConnman &connman)
 Handle a cfheaders request. More...
 
static void ProcessGetCFCheckPt (CNode &peer, CDataStream &vRecv, const CChainParams &chain_params, CConnman &connman)
 Handle a getcfcheckpt request. More...
 

Variables

static constexpr int64_t ORPHAN_TX_EXPIRE_TIME = 20 * 60
 Expiration time for orphan transactions in seconds. More...
 
static constexpr int64_t ORPHAN_TX_EXPIRE_INTERVAL = 5 * 60
 Minimum time between orphan transactions expire time checks in seconds. More...
 
static constexpr std::chrono::seconds RELAY_TX_CACHE_TIME {15 * 60}
 How long to cache transactions in mapRelay for normal relay. More...
 
static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_BASE = 15 * 60 * 1000000
 Headers download timeout expressed in microseconds. More...
 
static constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER = 1000
 
static constexpr int32_t MAX_OUTBOUND_PEERS_TO_PROTECT_FROM_DISCONNECT = 4
 Protect at least this many outbound peers from disconnection due to slow/behind headers chain. More...
 
static constexpr int64_t CHAIN_SYNC_TIMEOUT = 20 * 60
 Timeout for (unprotected) outbound peers to sync to our chainwork, in seconds. More...
 
static constexpr int64_t STALE_CHECK_INTERVAL = 10 * 60
 How frequently to check for stale tips, in seconds. More...
 
static constexpr int64_t EXTRA_PEER_CHECK_INTERVAL = 45
 How frequently to check for extra outbound peers and disconnect, in seconds. More...
 
static constexpr int64_t MINIMUM_CONNECT_TIME = 30
 Minimum time an outbound-peer-eviction candidate must be connected for, in order to evict, in seconds. More...
 
static constexpr uint64_t RANDOMIZER_ID_ADDRESS_RELAY = 0x3cac0035b5866b90ULL
 SHA256("main address relay")[0:8]. More...
 
static constexpr int STALE_RELAY_AGE_LIMIT = 30 * 24 * 60 * 60
 Age after which a stale block will no longer be served if requested as protection against fingerprinting. More...
 
static constexpr int HISTORICAL_BLOCK_AGE = 7 * 24 * 60 * 60
 Age after which a block is considered historical for purposes of rate limiting block relay. More...
 
static constexpr int32_t MAX_PEER_TX_IN_FLIGHT = 100
 Maximum number of in-flight transactions from a peer. More...
 
static constexpr int32_t MAX_PEER_TX_ANNOUNCEMENTS = 2 * MAX_INV_SZ
 Maximum number of announced transactions from a peer. More...
 
static constexpr std::chrono::microseconds INBOUND_PEER_TX_DELAY
 How many microseconds to delay requesting transactions from inbound peers. More...
 
static constexpr std::chrono::microseconds GETDATA_TX_INTERVAL
 How long to wait (in microseconds) before downloading a transaction from an additional peer. More...
 
static constexpr std::chrono::microseconds MAX_GETDATA_RANDOM_DELAY
 Maximum delay (in microseconds) for transaction requests to avoid biasing some peers over others. More...
 
static constexpr std::chrono::microseconds TX_EXPIRY_INTERVAL
 How long to wait (in microseconds) before expiring an in-flight getdata request to a peer. More...
 
static const unsigned int MAX_GETDATA_SZ = 1000
 Limit to avoid sending big packets. More...
 
static constexpr uint32_t MAX_NON_STANDARD_ORPHAN_PER_NODE = 5
 How many non standard orphan do we consider from a node before ignoring it. More...
 
RecursiveMutex g_cs_orphans
 
static constexpr std::chrono::hours AVG_LOCAL_ADDRESS_BROADCAST_INTERVAL {24}
 Average delay between local address broadcasts. More...
 
static const std::chrono::seconds AVG_ADDRESS_BROADCAST_INTERVAL {30}
 Average delay between peer address broadcasts. More...
 
static const unsigned int INVENTORY_BROADCAST_INTERVAL = 5
 Average delay between trickled inventory transmissions in seconds. More...
 
static constexpr unsigned int INVENTORY_BROADCAST_MAX_PER_MB
 Maximum number of inventory items to send per transmission. More...
 
static constexpr unsigned int AVG_FEEFILTER_BROADCAST_INTERVAL = 10 * 60
 Average delay between feefilter broadcasts in seconds. More...
 
static constexpr unsigned int MAX_FEEFILTER_CHANGE_DELAY = 5 * 60
 Maximum feefilter broadcast delay after significant change. More...
 
static constexpr uint32_t MAX_GETCFILTERS_SIZE = 1000
 Maximum number of compact filters that may be requested with one getcfilters. More...
 
static constexpr uint32_t MAX_GETCFHEADERS_SIZE = 2000
 Maximum number of cf hashes that may be requested with one getcfheaders. More...
 
static RecursiveMutex cs_most_recent_block
 
std::unordered_map< NodeId, uint32_t > rejectCountPerNode
 
bool done = false
 
static CNetProcessingCleanup instance_of_cnetprocessingcleanup
 

Function Documentation

◆ AddOrphanTx()

bool AddOrphanTx ( const CTransactionRef tx,
NodeId  peer 
)

Definition at line 1108 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ AddToCompactExtraTransactions()

static void AddToCompactExtraTransactions ( const CTransactionRef tx)
static

Definition at line 1091 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ AlreadyHave()

static bool AlreadyHave ( const CInv inv,
const CTxMemPool mempool 
)
static

Definition at line 1649 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ AssertLockHeld()

AssertLockHeld ( g_cs_orphans  )

◆ BlockRequestAllowed()

static bool BlockRequestAllowed ( const CBlockIndex pindex,
const Consensus::Params consensusParams 
)
static

Definition at line 1389 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ EraseOrphansFor()

void EraseOrphansFor ( NodeId  peer)

Definition at line 1177 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ EraseOrphanTx()

static int EraseOrphanTx ( const TxId  id)
static

Definition at line 1146 of file net_processing.cpp.

Here is the caller graph for this function:

◆ GetNodeStateStats()

bool GetNodeStateStats ( NodeId  nodeid,
CNodeStateStats stats 
)

Get statistics from node state.

Definition at line 1056 of file net_processing.cpp.

Here is the caller graph for this function:

◆ GUARDED_BY() [1/2]

std::map<TxId, COrphanTx> mapOrphanTransactions GUARDED_BY ( g_cs_orphans  )

◆ GUARDED_BY() [2/2]

static uint256 most_recent_block_hash GUARDED_BY ( cs_most_recent_block  )
static

◆ LimitOrphanTxSize()

unsigned int LimitOrphanTxSize ( unsigned int  nMaxOrphans)

Definition at line 1194 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ MaybePunishNodeForBlock()

static bool MaybePunishNodeForBlock ( NodeId  nodeid,
const BlockValidationState state,
bool  via_compact_block,
const std::string &  message = "" 
)
static

Potentially ban a node based on the contents of a BlockValidationState object.

Parameters
[in]via_compact_blockthis bool is passed in because net_processing should punish peers differently depending on whether the data was provided in a compact block message or not. If the compact block had a valid header, but contained invalid txs, the peer should not be punished. See BIP 152.
Returns
Returns true if the peer was punished (probably disconnected)

Definition at line 1291 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ MaybePunishNodeForTx()

static bool MaybePunishNodeForTx ( NodeId  nodeid,
const TxValidationState state,
const std::string &  message = "" 
)
static

Potentially ban a node based on the contents of a TxValidationState object.

Returns
Returns true if the peer was punished (probably disconnected)

Changes here may need to be reflected in TxRelayMayResultInDisconnect().

Definition at line 1356 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ Misbehaving() [1/2]

void Misbehaving ( const NodeId  pnode,
const int  howmuch,
const std::string &  message 
)

Increment peer's misbehavior score.

If the new value >= DISCOURAGEMENT_THRESHOLD, mark the node to be discouraged, meaning the peer might be disconnected and added to the discouragement filter.

Definition at line 1238 of file net_processing.cpp.

Here is the caller graph for this function:

◆ Misbehaving() [2/2]

static void Misbehaving ( const CNode node,
int  howmuch,
const std::string &  message 
)
static

Definition at line 1267 of file net_processing.cpp.

Here is the call graph for this function:

◆ PrepareBlockFilterRequest()

static bool PrepareBlockFilterRequest ( CNode peer,
const CChainParams chain_params,
BlockFilterType  filter_type,
uint32_t  start_height,
const BlockHash stop_hash,
uint32_t  max_height_diff,
const CBlockIndex *&  stop_index,
BlockFilterIndex *&  filter_index 
)
static

Validation logic for compact filters request handling.

May disconnect from the peer in the case of a bad request.

Parameters
[in]peerThe peer that we received the request from
[in]chain_paramsChain parameters
[in]filter_typeThe filter type the request is for. Must be basic filters.
[in]start_heightThe start height for the request
[in]stop_hashThe stop_hash for the request
[in]max_height_diffThe maximum number of items permitted to request, as specified in BIP 157
[out]stop_indexThe CBlockIndex for the stop_hash block, if the request can be serviced.
[out]filter_indexThe filter index, if the request can be serviced.
Returns
True if the request can be serviced.

Definition at line 2354 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessGetBlockData()

static void ProcessGetBlockData ( const Config config,
CNode pfrom,
const CInv inv,
CConnman connman,
const std::atomic< bool > &  interruptMsgProc 
)
static

Definition at line 1737 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessGetCFCheckPt()

static void ProcessGetCFCheckPt ( CNode peer,
CDataStream vRecv,
const CChainParams chain_params,
CConnman connman 
)
static

Handle a getcfcheckpt request.

May disconnect from the peer in the case of a bad request.

Parameters
[in]peerThe peer that we received the request from
[in]vRecvThe raw message received
[in]chain_paramsChain parameters
[in]connmanPointer to the connection manager

Definition at line 2532 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessGetCFHeaders()

static void ProcessGetCFHeaders ( CNode peer,
CDataStream vRecv,
const CChainParams chain_params,
CConnman connman 
)
static

Handle a cfheaders request.

May disconnect from the peer in the case of a bad request.

Parameters
[in]peerThe peer that we received the request from
[in]vRecvThe raw message received
[in]chain_paramsChain parameters
[in]connmanPointer to the connection manager

Definition at line 2470 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessGetCFilters()

static void ProcessGetCFilters ( CNode peer,
CDataStream vRecv,
const CChainParams chain_params,
CConnman connman 
)
static

Handle a cfilters request.

May disconnect from the peer in the case of a bad request.

Parameters
[in]peerThe peer that we received the request from
[in]vRecvThe raw message received
[in]chain_paramsChain parameters
[in]connmanPointer to the connection manager

Definition at line 2423 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessGetData()

static void ProcessGetData ( const Config config,
CNode pfrom,
CConnman connman,
const CTxMemPool mempool,
const std::atomic< bool > &  interruptMsgProc 
)
static

Definition at line 1913 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessHeadersMessage()

static void ProcessHeadersMessage ( const Config config,
CNode pfrom,
CConnman connman,
CTxMemPool mempool,
ChainstateManager chainman,
const std::vector< CBlockHeader > &  headers,
bool  via_compact_block 
)
static

Definition at line 2031 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ ProcessOrphanTx()

static void ProcessOrphanTx ( const Config config,
CConnman connman,
CTxMemPool mempool,
std::set< TxId > &  orphan_work_set 
)
static
Here is the caller graph for this function:

◆ RelayAddress()

static void RelayAddress ( const CAddress addr,
bool  fReachable,
const CConnman connman 
)
static

Definition at line 1694 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ RelayTransaction()

void RelayTransaction ( const TxId txid,
const CConnman connman 
)

Relay transaction to every node.

Definition at line 1689 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ SendBlockTransactions()

static void SendBlockTransactions ( const CBlock block,
const BlockTransactionsRequest req,
CNode pfrom,
CConnman connman 
)
inlinestatic

Definition at line 2012 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ TxRelayMayResultInDisconnect()

static bool TxRelayMayResultInDisconnect ( const TxValidationState state)
static

Returns true if the given validation state result may result in a peer banning/disconnecting us.

We use this to determine which unaccepted transactions from a whitelisted peer that we can safely relay.

Definition at line 1277 of file net_processing.cpp.

Here is the call graph for this function:
Here is the caller graph for this function:

◆ UpdateLastBlockAnnounceTime()

void UpdateLastBlockAnnounceTime ( NodeId  node,
int64_t  time_in_seconds 
)

Definition at line 979 of file net_processing.cpp.

◆ while()

while ( !done &&!orphan_work_set.  empty())

Definition at line 2271 of file net_processing.cpp.

Here is the call graph for this function:

Variable Documentation

◆ AVG_ADDRESS_BROADCAST_INTERVAL

const std::chrono::seconds AVG_ADDRESS_BROADCAST_INTERVAL {30}
static

Average delay between peer address broadcasts.

Definition at line 145 of file net_processing.cpp.

◆ AVG_FEEFILTER_BROADCAST_INTERVAL

constexpr unsigned int AVG_FEEFILTER_BROADCAST_INTERVAL = 10 * 60
static

Average delay between feefilter broadcasts in seconds.

Definition at line 161 of file net_processing.cpp.

◆ AVG_LOCAL_ADDRESS_BROADCAST_INTERVAL

constexpr std::chrono::hours AVG_LOCAL_ADDRESS_BROADCAST_INTERVAL {24}
static

Average delay between local address broadcasts.

Definition at line 141 of file net_processing.cpp.

◆ CHAIN_SYNC_TIMEOUT

constexpr int64_t CHAIN_SYNC_TIMEOUT = 20 * 60
static

Timeout for (unprotected) outbound peers to sync to our chainwork, in seconds.

Definition at line 67 of file net_processing.cpp.

◆ cs_most_recent_block

RecursiveMutex cs_most_recent_block
static

Definition at line 1508 of file net_processing.cpp.

◆ done

bool done = false

Definition at line 2270 of file net_processing.cpp.

◆ EXTRA_PEER_CHECK_INTERVAL

constexpr int64_t EXTRA_PEER_CHECK_INTERVAL = 45
static

How frequently to check for extra outbound peers and disconnect, in seconds.

Definition at line 74 of file net_processing.cpp.

◆ g_cs_orphans

static void g_cs_orphans
Initial value:
{
RecursiveMutex cs_main
Global state.
Definition: validation.cpp:90
AssertLockHeld(g_cs_orphans)

Definition at line 133 of file net_processing.cpp.

◆ GETDATA_TX_INTERVAL

constexpr std::chrono::microseconds GETDATA_TX_INTERVAL
static
Initial value:
{
std::chrono::seconds{60}}

How long to wait (in microseconds) before downloading a transaction from an additional peer.

Definition at line 99 of file net_processing.cpp.

◆ HEADERS_DOWNLOAD_TIMEOUT_BASE

constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_BASE = 15 * 60 * 1000000
static

Headers download timeout expressed in microseconds.

Timeout = base + per_header * (expected number of headers)

Definition at line 54 of file net_processing.cpp.

◆ HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER

constexpr int64_t HEADERS_DOWNLOAD_TIMEOUT_PER_HEADER = 1000
static

Definition at line 56 of file net_processing.cpp.

◆ HISTORICAL_BLOCK_AGE

constexpr int HISTORICAL_BLOCK_AGE = 7 * 24 * 60 * 60
static

Age after which a block is considered historical for purposes of rate limiting block relay.

Set to one week, denominated in seconds.

Definition at line 87 of file net_processing.cpp.

◆ INBOUND_PEER_TX_DELAY

constexpr std::chrono::microseconds INBOUND_PEER_TX_DELAY
static
Initial value:
{
std::chrono::seconds{2}}

How many microseconds to delay requesting transactions from inbound peers.

Definition at line 93 of file net_processing.cpp.

◆ instance_of_cnetprocessingcleanup

CNetProcessingCleanup instance_of_cnetprocessingcleanup
static

Definition at line 5451 of file net_processing.cpp.

◆ INVENTORY_BROADCAST_INTERVAL

const unsigned int INVENTORY_BROADCAST_INTERVAL = 5
static

Average delay between trickled inventory transmissions in seconds.

Blocks and whitelisted receivers bypass this, outbound peers get half this delay.

Definition at line 151 of file net_processing.cpp.

◆ INVENTORY_BROADCAST_MAX_PER_MB

constexpr unsigned int INVENTORY_BROADCAST_MAX_PER_MB
static
Initial value:
=
static const unsigned int INVENTORY_BROADCAST_INTERVAL
Average delay between trickled inventory transmissions in seconds.

Maximum number of inventory items to send per transmission.

Limits the impact of low-fee transaction floods.

Definition at line 156 of file net_processing.cpp.

◆ MAX_FEEFILTER_CHANGE_DELAY

constexpr unsigned int MAX_FEEFILTER_CHANGE_DELAY = 5 * 60
static

Maximum feefilter broadcast delay after significant change.

Definition at line 165 of file net_processing.cpp.

◆ MAX_GETCFHEADERS_SIZE

constexpr uint32_t MAX_GETCFHEADERS_SIZE = 2000
static

Maximum number of cf hashes that may be requested with one getcfheaders.

See BIP 157.

Definition at line 175 of file net_processing.cpp.

◆ MAX_GETCFILTERS_SIZE

constexpr uint32_t MAX_GETCFILTERS_SIZE = 1000
static

Maximum number of compact filters that may be requested with one getcfilters.

See BIP 157.

Definition at line 170 of file net_processing.cpp.

◆ MAX_GETDATA_RANDOM_DELAY

constexpr std::chrono::microseconds MAX_GETDATA_RANDOM_DELAY
static
Initial value:
{
std::chrono::seconds{2}}

Maximum delay (in microseconds) for transaction requests to avoid biasing some peers over others.

Definition at line 105 of file net_processing.cpp.

◆ MAX_GETDATA_SZ

const unsigned int MAX_GETDATA_SZ = 1000
static

Limit to avoid sending big packets.

Not used in processing incoming GETDATA for compatibility.

Definition at line 120 of file net_processing.cpp.

◆ MAX_NON_STANDARD_ORPHAN_PER_NODE

constexpr uint32_t MAX_NON_STANDARD_ORPHAN_PER_NODE = 5
static

How many non standard orphan do we consider from a node before ignoring it.

Definition at line 123 of file net_processing.cpp.

◆ MAX_OUTBOUND_PEERS_TO_PROTECT_FROM_DISCONNECT

constexpr int32_t MAX_OUTBOUND_PEERS_TO_PROTECT_FROM_DISCONNECT = 4
static

Protect at least this many outbound peers from disconnection due to slow/behind headers chain.

Definition at line 61 of file net_processing.cpp.

◆ MAX_PEER_TX_ANNOUNCEMENTS

constexpr int32_t MAX_PEER_TX_ANNOUNCEMENTS = 2 * MAX_INV_SZ
static

Maximum number of announced transactions from a peer.

Definition at line 91 of file net_processing.cpp.

◆ MAX_PEER_TX_IN_FLIGHT

constexpr int32_t MAX_PEER_TX_IN_FLIGHT = 100
static

Maximum number of in-flight transactions from a peer.

Definition at line 89 of file net_processing.cpp.

◆ MINIMUM_CONNECT_TIME

constexpr int64_t MINIMUM_CONNECT_TIME = 30
static

Minimum time an outbound-peer-eviction candidate must be connected for, in order to evict, in seconds.

Definition at line 79 of file net_processing.cpp.

◆ ORPHAN_TX_EXPIRE_INTERVAL

constexpr int64_t ORPHAN_TX_EXPIRE_INTERVAL = 5 * 60
static

Minimum time between orphan transactions expire time checks in seconds.

Definition at line 46 of file net_processing.cpp.

◆ ORPHAN_TX_EXPIRE_TIME

constexpr int64_t ORPHAN_TX_EXPIRE_TIME = 20 * 60
static

Expiration time for orphan transactions in seconds.

Definition at line 44 of file net_processing.cpp.

◆ RANDOMIZER_ID_ADDRESS_RELAY

constexpr uint64_t RANDOMIZER_ID_ADDRESS_RELAY = 0x3cac0035b5866b90ULL
static

SHA256("main address relay")[0:8].

Definition at line 81 of file net_processing.cpp.

◆ rejectCountPerNode

std::unordered_map<NodeId, uint32_t> rejectCountPerNode

Definition at line 2269 of file net_processing.cpp.

◆ RELAY_TX_CACHE_TIME

constexpr std::chrono::seconds RELAY_TX_CACHE_TIME {15 * 60}
static

How long to cache transactions in mapRelay for normal relay.

Definition at line 48 of file net_processing.cpp.

◆ STALE_CHECK_INTERVAL

constexpr int64_t STALE_CHECK_INTERVAL = 10 * 60
static

How frequently to check for stale tips, in seconds.

Definition at line 70 of file net_processing.cpp.

◆ STALE_RELAY_AGE_LIMIT

constexpr int STALE_RELAY_AGE_LIMIT = 30 * 24 * 60 * 60
static

Age after which a stale block will no longer be served if requested as protection against fingerprinting.

Set to one month, denominated in seconds.

Definition at line 84 of file net_processing.cpp.

◆ TX_EXPIRY_INTERVAL

constexpr std::chrono::microseconds TX_EXPIRY_INTERVAL
static
Initial value:
{
static constexpr std::chrono::microseconds GETDATA_TX_INTERVAL
How long to wait (in microseconds) before downloading a transaction from an additional peer...

How long to wait (in microseconds) before expiring an in-flight getdata request to a peer.

Definition at line 111 of file net_processing.cpp.