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/*
* net/sched/cls_route.c Routing table based packet classifier.
*
* 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; either version
* 2 of the License, or (at your option) any later version.
*
* Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*/
#include <linux/module.h>
#include <asm/uaccess.h>
#include <asm/system.h>
#include <asm/bitops.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/socket.h>
#include <linux/sockios.h>
#include <linux/in.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/if_ether.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/notifier.h>
#include <net/ip.h>
#include <net/route.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <net/pkt_sched.h>
static int route_classify(struct sk_buff *skb, struct tcf_proto *tp,
struct tcf_result *res)
{
struct dst_entry *dst = skb->dst;
if (dst) {
u32 clid = dst->tclassid;
if (clid && (TC_H_MAJ(clid) == 0 ||
!(TC_H_MAJ(clid^tp->q->handle)))) {
res->classid = clid;
res->class = 0;
return 0;
}
}
return -1;
}
static unsigned long route_get(struct tcf_proto *tp, u32 handle)
{
return 0;
}
static void route_put(struct tcf_proto *tp, unsigned long f)
{
}
static int route_init(struct tcf_proto *tp)
{
return 0;
}
static void route_destroy(struct tcf_proto *tp)
{
}
static int route_delete(struct tcf_proto *tp, unsigned long arg)
{
return -EINVAL;
}
static int route_change(struct tcf_proto *tp, u32 handle,
struct rtattr **tca,
unsigned long *arg)
{
return handle ? -EINVAL : 0;
}
struct tcf_proto_ops cls_route_ops = {
NULL,
"route",
route_classify,
route_init,
route_destroy,
route_get,
route_put,
route_change,
route_delete,
NULL,
};
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