#include <common/pcp.h>
#include <atomic>
#include <common/netif.h>
#include <crypto/common.h>
#include <logging.h>
#include <netaddress.h>
#include <netbase.h>
#include <random.h>
#include <span.h>
#include <util/check.h>
#include <util/readwritefile.h>
#include <util/sock.h>
#include <util/strencodings.h>
#include <util/threadinterrupt.h>

Include dependency graph for pcp.cpp:

Functions
std::variant< MappingResult, MappingError >	NATPMPRequestPortMap (const CNetAddr &gateway, uint16_t port, uint32_t lifetime, CThreadInterrupt &interrupt, int num_tries, std::chrono::milliseconds timeout_per_try)
std::variant< MappingResult, MappingError >	PCPRequestPortMap (const PCPMappingNonce &nonce, const CNetAddr &gateway, const CNetAddr &bind, uint16_t port, uint32_t lifetime, CThreadInterrupt &interrupt, int num_tries, std::chrono::milliseconds timeout_per_try)

Function Documentation

◆ NATPMPRequestPortMap()

std::variant< MappingResult, MappingError > NATPMPRequestPortMap	(	const CNetAddr &	gateway,
		uint16_t	port,
		uint32_t	lifetime,
		CThreadInterrupt &	interrupt,
		int	num_tries = 3,
		std::chrono::milliseconds	timeout_per_try = std::chrono::milliseconds(1000) )

Try to open a port using RFC 6886 NAT-PMP. IPv4 only.

gateway: Destination address for PCP requests (usually the default gateway).
port: Internal port, and desired external port.
lifetime: Requested lifetime in seconds for mapping. The server may assign as shorter or longer lifetime. A lifetime of 0 deletes the mapping.
num_tries: Number of tries in case of no response.

Returns the external_ip:external_port of the mapping if successful, otherwise a MappingError.

Definition at line 282 of file pcp.cpp.

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◆ PCPRequestPortMap()

std::variant< MappingResult, MappingError > PCPRequestPortMap	(	const PCPMappingNonce &	nonce,
		const CNetAddr &	gateway,
		const CNetAddr &	bind,
		uint16_t	port,
		uint32_t	lifetime,
		CThreadInterrupt &	interrupt,
		int	num_tries = 3,
		std::chrono::milliseconds	timeout_per_try = std::chrono::milliseconds(1000) )

Try to open a port using RFC 6887 Port Control Protocol (PCP). Handles IPv4 and IPv6.

nonce: Mapping cookie. Keep this the same over renewals.
gateway: Destination address for PCP requests (usually the default gateway).
bind: Specific local bind address for IPv6 pinholing. Set this as INADDR_ANY for IPv4.
port: Internal port, and desired external port.
lifetime: Requested lifetime in seconds for mapping. The server may assign as shorter or longer lifetime. A lifetime of 0 deletes the mapping.
num_tries: Number of tries in case of no response.