id_manager.c File Reference

Map of network address to MPTCP address ID. More...

#include <assert.h>
#include <stdint.h>
#include <string.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <ell/ell.h>
#include <mptcpd/private/murmur_hash.h>
#include <mptcpd/private/id_manager.h>
#include <mptcpd/id_manager.h>
#include "hash_sockaddr.h"

Include dependency graph for id_manager.c:

Classes
struct	mptcpd_idm
	Internal mptcpd address ID manager data. More...

Macros
#define	_POSIX_C_SOURCE   200112L
	For XSI-compliant strerror_r().
#define	MPTCPD_INVALID_ID   0
	Invalid MPTCP address ID.
#define	MPTCPD_MIN_ID   1
	Minimum MPTCP address ID.
#define	MPTCPD_MAX_ID   UINT8_MAX
	Maximum MPTCP address ID.

Functions
struct mptcpd_idm *	mptcpd_idm_create (void)
	Create MPTCP address ID manager.
void	mptcpd_idm_destroy (struct mptcpd_idm *idm)
	Destroy MPTCP address ID manager.
bool	mptcpd_idm_map_id (struct mptcpd_idm *idm, struct sockaddr const *sa, mptcpd_aid_t id)
	Map an IP address to a MPTCP address ID.
mptcpd_aid_t	mptcpd_idm_get_id (struct mptcpd_idm *idm, struct sockaddr const *sa)
	Get MPTCP address ID.
mptcpd_aid_t	mptcpd_idm_remove_id (struct mptcpd_idm *idm, struct sockaddr const *sa)
	Remove MPTCP address ID.

Detailed Description

Map of network address to MPTCP address ID.

Copyright (c) 2020-2022, Intel Corporation

Function Documentation

mptcpd_idm_create()

struct mptcpd_idm * mptcpd_idm_create

(

void

)

Create MPTCP address ID manager.

Returns

Pointer to MPTCP address ID manager on success. NULL on failure.

mptcpd_idm_destroy()

void mptcpd_idm_destroy

(

struct mptcpd_idm *

idm

)

Destroy MPTCP address ID manager.

Parameters

[in,out]

idm

The mptcpd address ID manager object.

mptcpd_idm_get_id()

mptcpd_aid_t mptcpd_idm_get_id	(	struct mptcpd_idm *	idm,
		struct sockaddr const *	sa
	)

Get MPTCP address ID.

Map an IP address to a MPTCP address ID, and return that ID.

Parameters

[in]	idm	The mptcpd address ID manager object.
[in]	sa	IP address information.

Returns

MPTCP address ID associated with the address sa, or zero on error.

mptcpd_idm_map_id()

bool mptcpd_idm_map_id	(	struct mptcpd_idm *	idm,
		struct sockaddr const *	sa,
		mptcpd_aid_t	id
	)

Map an IP address to a MPTCP address ID.

Map an IP address to a MPTCP address ID. The MPTCP addresses ID for an existing IP address will be updated with the new ID.

Note

This function is only meant for internal use by mptcpd.

Parameters

[in]	idm	The mptcpd address ID manager object.
[in]	sa	IP address information.
[in]	id	MPTCP address ID.

Returns

true if mapping succeeded, and false otherwise.

mptcpd_idm_remove_id()

mptcpd_aid_t mptcpd_idm_remove_id	(	struct mptcpd_idm *	idm,
		struct sockaddr const *	sa
	)

Remove MPTCP address ID.

Stop associating the MPTCP address ID with the given IP address.

Parameters

[in]	idm	The mptcpd address ID manager object.
[in]	sa	IP address information.

Returns

MPTCP address ID that was removed, or zero if no such ID is associated with the IP address sa. Zero will also be returned if either of the arguments are NULL.