linux/drivers/net/wan/hdlc_cisco.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Generic HDLC support routines for Linux
 * Cisco HDLC support
 *
 * Copyright (C) 2000 - 2006 Krzysztof Halasa <[email protected]>
 */

#include <linux/errno.h>
#include <linux/hdlc.h>
#include <linux/if_arp.h>
#include <linux/inetdevice.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/pkt_sched.h>
#include <linux/poll.h>
#include <linux/rtnetlink.h>
#include <linux/skbuff.h>

#undef DEBUG_HARD_HEADER

#define CISCO_MULTICAST …
#define CISCO_UNICAST …
#define CISCO_KEEPALIVE …
#define CISCO_SYS_INFO …
#define CISCO_ADDR_REQ …
#define CISCO_ADDR_REPLY …
#define CISCO_KEEPALIVE_REQ …

struct hdlc_header { … } __packed;

struct cisco_packet { … } __packed;
#define CISCO_PACKET_LEN …
#define CISCO_BIG_PACKET_LEN …

struct cisco_state { … };

static int cisco_ioctl(struct net_device *dev, struct if_settings *ifs);

static inline struct cisco_state *state(hdlc_device *hdlc)
{ … }

static int cisco_hard_header(struct sk_buff *skb, struct net_device *dev,
			     u16 type, const void *daddr, const void *saddr,
			     unsigned int len)
{ … }

static void cisco_keepalive_send(struct net_device *dev, u32 type,
				 __be32 par1, __be32 par2)
{ … }

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

static int cisco_rx(struct sk_buff *skb)
{ … }

static void cisco_timer(struct timer_list *t)
{ … }

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

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

static struct hdlc_proto proto = …;

static const struct header_ops cisco_header_ops = …;

static int cisco_ioctl(struct net_device *dev, struct if_settings *ifs)
{ … }

static int __init hdlc_cisco_init(void)
{ … }

static void __exit hdlc_cisco_exit(void)
{ … }

module_init(…) …;
module_exit(hdlc_cisco_exit);

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;