protocol.h File Reference

#include <kernel/messagestartchars.h>
#include <netaddress.h>
#include <primitives/transaction.h>
#include <serialize.h>
#include <streams.h>
#include <uint256.h>
#include <util/time.h>
#include <array>
#include <cstdint>
#include <limits>
#include <string>

Include dependency graph for protocol.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
class	CMessageHeader
	Message header. More...
class	CAddress
	A CService with information about it as peer. More...
struct	CAddress::SerParams
class	CInv
	inv message data More...

Namespaces
	NetMsgType
	Bitcoin protocol message types.

Enumerations
enum	ServiceFlags : uint64_t {   NODE_NONE = 0, NODE_NETWORK = (1 << 0), NODE_BLOOM = (1 << 2), NODE_WITNESS = (1 << 3),   NODE_COMPACT_FILTERS = (1 << 6), NODE_NETWORK_LIMITED = (1 << 10), NODE_P2P_V2 = (1 << 11) }
	nServices flags More...
enum	GetDataMsg : uint32_t {   UNDEFINED = 0, MSG_TX = 1, MSG_BLOCK = 2, MSG_WTX = 5,   MSG_FILTERED_BLOCK = 3, MSG_CMPCT_BLOCK = 4, MSG_WITNESS_BLOCK = MSG_BLOCK | MSG_WITNESS_FLAG, MSG_WITNESS_TX = MSG_TX | MSG_WITNESS_FLAG }
	getdata / inv message types. More...

Functions
const std::vector< std::string > &	getAllNetMessageTypes ()
std::vector< std::string >	serviceFlagsToStr (uint64_t flags)
	Convert service flags (a bitmask of NODE_*) to human readable strings. More...
constexpr ServiceFlags	SeedsServiceFlags ()
	State independent service flags. More...
static bool	MayHaveUsefulAddressDB (ServiceFlags services)
	Checks if a peer with the given service flags may be capable of having a robust address-storage DB. More...
GenTxid	ToGenTxid (const CInv &inv)
	Convert a TX/WITNESS_TX/WTX CInv to a GenTxid. More...

Variables
const uint32_t	MSG_WITNESS_FLAG = 1 << 30
	getdata message type flags More...
const uint32_t	MSG_TYPE_MASK = 0xffffffff >> 2

Enumeration Type Documentation

GetDataMsg

enum GetDataMsg : uint32_t

getdata / inv message types.

These numbers are defined by the protocol. When adding a new value, be sure to mention it in the respective BIP.

Enumerator
UNDEFINED
MSG_TX
MSG_BLOCK
MSG_WTX	Defined in BIP 339.
MSG_FILTERED_BLOCK	Defined in BIP37.
MSG_CMPCT_BLOCK	Defined in BIP152.
MSG_WITNESS_BLOCK	Defined in BIP144.
MSG_WITNESS_TX	Defined in BIP144.

Definition at line 441 of file protocol.h.

ServiceFlags

enum ServiceFlags : uint64_t

nServices flags

Enumerator
NODE_NONE
NODE_NETWORK
NODE_BLOOM
NODE_WITNESS
NODE_COMPACT_FILTERS
NODE_NETWORK_LIMITED
NODE_P2P_V2

Definition at line 274 of file protocol.h.

Function Documentation

getAllNetMessageTypes()

const std::vector<std::string>& getAllNetMessageTypes

(

)

Definition at line 167 of file protocol.cpp.

Here is the caller graph for this function:

MayHaveUsefulAddressDB()

static bool MayHaveUsefulAddressDB ( ServiceFlags  services )

inlinestatic

Checks if a peer with the given service flags may be capable of having a robust address-storage DB.

Definition at line 325 of file protocol.h.

Here is the caller graph for this function:

SeedsServiceFlags()

constexpr ServiceFlags SeedsServiceFlags

(

)

State independent service flags.

If the return value is changed, contrib/seeds/makeseeds.py should be updated appropriately to filter for nodes with desired service flags (compatible with our new flags).

Definition at line 319 of file protocol.h.

Here is the caller graph for this function:

serviceFlagsToStr()

std::vector<std::string> serviceFlagsToStr

(

uint64_t

flags

)

Convert service flags (a bitmask of NODE_*) to human readable strings.

It supports unknown service flags which will be returned as "UNKNOWN[...]".

Parameters

[in]

flags

multiple NODE_* bitwise-OR-ed together

Definition at line 194 of file protocol.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

ToGenTxid()

GenTxid ToGenTxid

(

const CInv &

inv

)

Convert a TX/WITNESS_TX/WTX CInv to a GenTxid.

Definition at line 207 of file protocol.cpp.

Here is the call graph for this function:

Here is the caller graph for this function:

Variable Documentation

MSG_TYPE_MASK

const uint32_t MSG_TYPE_MASK = 0xffffffff >> 2

Definition at line 435 of file protocol.h.

MSG_WITNESS_FLAG

const uint32_t MSG_WITNESS_FLAG = 1 << 30

getdata message type flags

Definition at line 434 of file protocol.h.