cc74eddd0f
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>
54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __NET_IFE_H
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#define __NET_IFE_H
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#include <linux/etherdevice.h>
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#include <linux/rtnetlink.h>
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#include <linux/module.h>
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#include <uapi/linux/ife.h>
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#if IS_ENABLED(CONFIG_NET_IFE)
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void *ife_encode(struct sk_buff *skb, u16 metalen);
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void *ife_decode(struct sk_buff *skb, u16 *metalen);
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void *ife_tlv_meta_decode(void *skbdata, const void *ifehdr_end, u16 *attrtype,
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u16 *dlen, u16 *totlen);
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int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen,
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const void *dval);
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void *ife_tlv_meta_next(void *skbdata);
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#else
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static inline void *ife_encode(struct sk_buff *skb, u16 metalen)
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{
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return NULL;
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}
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static inline void *ife_decode(struct sk_buff *skb, u16 *metalen)
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{
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return NULL;
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}
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static inline void *ife_tlv_meta_decode(void *skbdata, u16 *attrtype, u16 *dlen,
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u16 *totlen)
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{
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return NULL;
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}
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static inline int ife_tlv_meta_encode(void *skbdata, u16 attrtype, u16 dlen,
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const void *dval)
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{
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return 0;
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}
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static inline void *ife_tlv_meta_next(void *skbdata)
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{
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return NULL;
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}
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#endif
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#endif /* __NET_IFE_H */
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