7ecc6a9247
Some functions in lib/libc/net were disabled on MINIX3 only, but with a few added header files they build just fine, even though some of them rely on system functionality that has not yet been implemented. Since the functionality is unlikely to be used in practice (because it typically requires the use of protocol families that themselves are not yet supported, such as IPv6), already enabling it right now helps in building packages that rely on the functionality being present at compile time, while not posing any practical risk of breaking the same packages at run time. Change-Id: Idee8e3963c9e300bde9575429f0e77b0565acaef
129 lines
4.7 KiB
C
129 lines
4.7 KiB
C
/* $NetBSD: if_dl.h,v 1.26 2014/12/03 01:31:37 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* @(#)if_dl.h 8.1 (Berkeley) 6/10/93
|
|
*/
|
|
|
|
/*
|
|
* A Link-Level Sockaddr may specify the interface in one of two
|
|
* ways: either by means of a system-provided index number (computed
|
|
* anew and possibly differently on every reboot), or by a human-readable
|
|
* string such as "il0" (for managerial convenience).
|
|
*
|
|
* Census taking actions, such as something akin to SIOCGCONF would return
|
|
* both the index and the human name.
|
|
*
|
|
* High volume transactions (such as giving a link-level ``from'' address
|
|
* in a recvfrom or recvmsg call) may be likely only to provide the indexed
|
|
* form, (which requires fewer copy operations and less space).
|
|
*
|
|
* The form and interpretation of the link-level address is purely a matter
|
|
* of convention between the device driver and its consumers; however, it is
|
|
* expected that all drivers for an interface of a given if_type will agree.
|
|
*/
|
|
|
|
#ifndef _NET_IF_DL_H_
|
|
#define _NET_IF_DL_H_
|
|
|
|
#include <sys/ansi.h>
|
|
|
|
#ifndef sa_family_t
|
|
typedef __sa_family_t sa_family_t;
|
|
#define sa_family_t __sa_family_t
|
|
#endif
|
|
#ifndef socklen_t
|
|
typedef __socklen_t socklen_t;
|
|
#define socklen_t __socklen_t
|
|
#endif
|
|
|
|
struct dl_addr {
|
|
uint8_t dl_type; /* interface type */
|
|
uint8_t dl_nlen; /* interface name length, no trailing 0 reqd. */
|
|
uint8_t dl_alen; /* link level address length */
|
|
uint8_t dl_slen; /* link layer selector length */
|
|
/*
|
|
* minimum work area, can be larger; contains both if name
|
|
* and ll address
|
|
*/
|
|
char dl_data[12];
|
|
};
|
|
|
|
/*
|
|
* Structure of a Link-Level sockaddr:
|
|
*/
|
|
struct sockaddr_dl {
|
|
uint8_t sdl_len; /* Total length of sockaddr */
|
|
sa_family_t sdl_family; /* AF_LINK */
|
|
uint16_t sdl_index; /* if != 0, system given index for interface */
|
|
struct dl_addr sdl_addr;
|
|
#define sdl_type sdl_addr.dl_type
|
|
#define sdl_nlen sdl_addr.dl_nlen
|
|
#define sdl_alen sdl_addr.dl_alen
|
|
#define sdl_slen sdl_addr.dl_slen
|
|
#define sdl_data sdl_addr.dl_data
|
|
};
|
|
|
|
#define satosdl(__sa) ((struct sockaddr_dl *)(__sa))
|
|
#define satocsdl(__sa) ((const struct sockaddr_dl *)(__sa))
|
|
|
|
/* We do arithmetic directly with these, so keep them char instead of void */
|
|
#define LLADDR(s) ((char *)((s)->sdl_data + (s)->sdl_nlen))
|
|
#define CLLADDR(s) ((const char *)((s)->sdl_data + (s)->sdl_nlen))
|
|
|
|
#ifdef _KERNEL
|
|
uint8_t sockaddr_dl_measure(uint8_t, uint8_t);
|
|
struct sockaddr *sockaddr_dl_alloc(uint16_t, uint8_t,
|
|
const void *, uint8_t, const void *, uint8_t, int);
|
|
struct sockaddr_dl *sockaddr_dl_init(struct sockaddr_dl *, socklen_t, uint16_t,
|
|
uint8_t, const void *, uint8_t, const void *, uint8_t);
|
|
struct sockaddr_dl *sockaddr_dl_setaddr(struct sockaddr_dl *, socklen_t,
|
|
const void *, uint8_t);
|
|
#else
|
|
|
|
#include <sys/cdefs.h>
|
|
|
|
__BEGIN_DECLS
|
|
void link_addr(const char *, struct sockaddr_dl *);
|
|
char *link_ntoa(const struct sockaddr_dl *);
|
|
__END_DECLS
|
|
|
|
#endif /* !_KERNEL */
|
|
|
|
#if defined(_KERNEL) || defined(_TEST)
|
|
// 255 xx: + 255 'a' + / + # + 3 digits + NUL
|
|
#define LINK_ADDRSTRLEN ((255 * 4) + 5)
|
|
|
|
int dl_print(char *, size_t, const struct dl_addr *);
|
|
#define DL_PRINT(b, a) (dl_print((b), sizeof(b), (a)), (b))
|
|
int sdl_print(char *, size_t, const void *);
|
|
#endif
|
|
|
|
#endif /* !_NET_IF_DL_H_ */
|