linux/net/802/garp.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 *	IEEE 802.1D Generic Attribute Registration Protocol (GARP)
 *
 *	Copyright (c) 2008 Patrick McHardy <[email protected]>
 */
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <linux/llc.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <net/llc.h>
#include <net/llc_pdu.h>
#include <net/garp.h>
#include <asm/unaligned.h>

static unsigned int garp_join_time __read_mostly = …;
module_param(garp_join_time, uint, 0644);
MODULE_PARM_DESC(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;

static const struct garp_state_trans { … } garp_applicant_state_table[GARP_APPLICANT_MAX + 1][GARP_EVENT_MAX + 1] = …;

static int garp_attr_cmp(const struct garp_attr *attr,
			 const void *data, u8 len, u8 type)
{ … }

static struct garp_attr *garp_attr_lookup(const struct garp_applicant *app,
					  const void *data, u8 len, u8 type)
{ … }

static struct garp_attr *garp_attr_create(struct garp_applicant *app,
					  const void *data, u8 len, u8 type)
{ … }

static void garp_attr_destroy(struct garp_applicant *app, struct garp_attr *attr)
{ … }

static void garp_attr_destroy_all(struct garp_applicant *app)
{ … }

static int garp_pdu_init(struct garp_applicant *app)
{ … }

static int garp_pdu_append_end_mark(struct garp_applicant *app)
{ … }

static void garp_pdu_queue(struct garp_applicant *app)
{ … }

static void garp_queue_xmit(struct garp_applicant *app)
{ … }

static int garp_pdu_append_msg(struct garp_applicant *app, u8 attrtype)
{ … }

static int garp_pdu_append_attr(struct garp_applicant *app,
				const struct garp_attr *attr,
				enum garp_attr_event event)
{ … }

static void garp_attr_event(struct garp_applicant *app,
			    struct garp_attr *attr, enum garp_event event)
{ … }

int garp_request_join(const struct net_device *dev,
		      const struct garp_application *appl,
		      const void *data, u8 len, u8 type)
{ … }
EXPORT_SYMBOL_GPL(…);

void garp_request_leave(const struct net_device *dev,
			const struct garp_application *appl,
			const void *data, u8 len, u8 type)
{ … }
EXPORT_SYMBOL_GPL(…);

static void garp_gid_event(struct garp_applicant *app, enum garp_event event)
{ … }

static void garp_join_timer_arm(struct garp_applicant *app)
{ … }

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

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

static int garp_pdu_parse_attr(struct garp_applicant *app, struct sk_buff *skb,
			       u8 attrtype)
{ … }

static int garp_pdu_parse_msg(struct garp_applicant *app, struct sk_buff *skb)
{ … }

static void garp_pdu_rcv(const struct stp_proto *proto, struct sk_buff *skb,
			 struct net_device *dev)
{ … }

static int garp_init_port(struct net_device *dev)
{ … }

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

int garp_init_applicant(struct net_device *dev, struct garp_application *appl)
{ … }
EXPORT_SYMBOL_GPL(…);

void garp_uninit_applicant(struct net_device *dev, struct garp_application *appl)
{ … }
EXPORT_SYMBOL_GPL(…);

int garp_register_application(struct garp_application *appl)
{ … }
EXPORT_SYMBOL_GPL(…);

void garp_unregister_application(struct garp_application *appl)
{ … }
EXPORT_SYMBOL_GPL(…);