linux/net/802/hippi.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * INET		An implementation of the TCP/IP protocol suite for the LINUX
 *		operating system.  INET is implemented using the  BSD Socket
 *		interface as the means of communication with the user level.
 *
 *		HIPPI-type device handling.
 *
 * Version:	@(#)hippi.c	1.0.0	05/29/97
 *
 * Authors:	Ross Biro
 *		Fred N. van Kempen, <[email protected]>
 *		Mark Evans, <[email protected]>
 *		Florian  La Roche, <[email protected]>
 *		Alan Cox, <[email protected]>
 *		Jes Sorensen, <[email protected]>
 */

#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <linux/hippidevice.h>
#include <linux/skbuff.h>
#include <linux/errno.h>
#include <net/arp.h>
#include <net/sock.h>
#include <linux/uaccess.h>

/*
 * Create the HIPPI MAC header for an arbitrary protocol layer
 *
 * saddr=NULL	means use device source address
 * daddr=NULL	means leave destination address (eg unresolved arp)
 */

static int hippi_header(struct sk_buff *skb, struct net_device *dev,
			unsigned short type,
			const void *daddr, const void *saddr, unsigned int len)
{ … }


/*
 *	Determine the packet's protocol ID.
 */

__be16 hippi_type_trans(struct sk_buff *skb, struct net_device *dev)
{ … }

EXPORT_SYMBOL(…);

/*
 * For HIPPI we will actually use the lower 4 bytes of the hardware
 * address as the I-FIELD rather than the actual hardware address.
 */
int hippi_mac_addr(struct net_device *dev, void *p)
{ … }
EXPORT_SYMBOL(…);

int hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p)
{ … }
EXPORT_SYMBOL(…);

static const struct header_ops hippi_header_ops = …;


static void hippi_setup(struct net_device *dev)
{ … }

/**
 * alloc_hippi_dev - Register HIPPI device
 * @sizeof_priv: Size of additional driver-private structure to be allocated
 *	for this HIPPI device
 *
 * Fill in the fields of the device structure with HIPPI-generic values.
 *
 * Constructs a new net device, complete with a private data area of
 * size @sizeof_priv.  A 32-byte (not bit) alignment is enforced for
 * this private data area.
 */

struct net_device *alloc_hippi_dev(int sizeof_priv)
{ … }

EXPORT_SYMBOL(…);