linux/include/net/ife.h
Alexander Aring cc74eddd0f net: sched: ife: handle malformed tlv length
There is currently no handling to check on a invalid tlv length. This
patch adds such handling to avoid killing the kernel with a malformed
ife packet.

Signed-off-by: Alexander Aring <aring@mojatatu.com>
Reviewed-by: Yotam Gigi <yotam.gi@gmail.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-04-22 21:12:00 -04:00

54 lines
1.1 KiB
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NET_IFE_H
#define __NET_IFE_H
#include <linux/etherdevice.h>
#include <linux/rtnetlink.h>
#include <linux/module.h>
#include <uapi/linux/ife.h>
#if IS_ENABLED(CONFIG_NET_IFE)
void *ife_encode(struct sk_buff *skb, u16 metalen);
void *ife_decode(struct sk_buff *skb, u16 *metalen);
void *ife_tlv_meta_decode(void *skbdata, const void *ifehdr_end, u16 *attrtype,
u16 *dlen, u16 *totlen);
int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen,
const void *dval);
void *ife_tlv_meta_next(void *skbdata);
#else
static inline void *ife_encode(struct sk_buff *skb, u16 metalen)
{
return NULL;
}
static inline void *ife_decode(struct sk_buff *skb, u16 *metalen)
{
return NULL;
}
static inline void *ife_tlv_meta_decode(void *skbdata, u16 *attrtype, u16 *dlen,
u16 *totlen)
{
return NULL;
}
static inline int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen,
const void *dval)
{
return 0;
}
static inline void *ife_tlv_meta_next(void *skbdata)
{
return NULL;
}
#endif
#endif /* __NET_IFE_H */