linux/net/ife/ife.c

/*
 * net/ife/ife.c - Inter-FE protocol based on ForCES WG InterFE LFB
 * Copyright (c) 2015 Jamal Hadi Salim <[email protected]>
 * Copyright (c) 2017 Yotam Gigi <[email protected]>
 *
 * Refer to: draft-ietf-forces-interfelfb-03 and netdev01 paper:
 * "Distributing Linux Traffic Control Classifier-Action Subsystem"
 * Authors: Jamal Hadi Salim and Damascene M. Joachimpillai
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation.
 */

#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/errno.h>
#include <linux/skbuff.h>
#include <linux/rtnetlink.h>
#include <linux/module.h>
#include <linux/init.h>
#include <net/net_namespace.h>
#include <net/netlink.h>
#include <net/pkt_sched.h>
#include <linux/etherdevice.h>
#include <net/ife.h>

struct ifeheadr { … };

void *ife_encode(struct sk_buff *skb, u16 metalen)
{ … }
EXPORT_SYMBOL_GPL(…);

void *ife_decode(struct sk_buff *skb, u16 *metalen)
{ … }
EXPORT_SYMBOL_GPL(…);

struct meta_tlvhdr { … };

static bool __ife_tlv_meta_valid(const unsigned char *skbdata,
				 const unsigned char *ifehdr_end)
{ … }

/* Caller takes care of presenting data in network order
 */
void *ife_tlv_meta_decode(void *skbdata, const void *ifehdr_end, u16 *attrtype,
			  u16 *dlen, u16 *totlen)
{ … }
EXPORT_SYMBOL_GPL(…);

void *ife_tlv_meta_next(void *skbdata)
{ … }
EXPORT_SYMBOL_GPL(…);

/* Caller takes care of presenting data in network order
 */
int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen, const void *dval)
{ … }
EXPORT_SYMBOL_GPL(…);

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