7026b1ddb6
On the output paths in particular, we have to sometimes deal with two socket contexts. First, and usually skb->sk, is the local socket that generated the frame. And second, is potentially the socket used to control a tunneling socket, such as one the encapsulates using UDP. We do not want to disassociate skb->sk when encapsulating in order to fix this, because that would break socket memory accounting. The most extreme case where this can cause huge problems is an AF_PACKET socket transmitting over a vxlan device. We hit code paths doing checks that assume they are dealing with an ipv4 socket, but are actually operating upon the AF_PACKET one. Signed-off-by: David S. Miller <davem@davemloft.net>
30 lines
878 B
C
30 lines
878 B
C
#ifndef _NET_DN_NEIGH_H
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#define _NET_DN_NEIGH_H
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/*
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* The position of the first two fields of
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* this structure are critical - SJW
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*/
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struct dn_neigh {
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struct neighbour n;
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__le16 addr;
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unsigned long flags;
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#define DN_NDFLAG_R1 0x0001 /* Router L1 */
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#define DN_NDFLAG_R2 0x0002 /* Router L2 */
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#define DN_NDFLAG_P3 0x0004 /* Phase III Node */
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unsigned long blksize;
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__u8 priority;
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};
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void dn_neigh_init(void);
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void dn_neigh_cleanup(void);
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int dn_neigh_router_hello(struct sock *sk, struct sk_buff *skb);
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int dn_neigh_endnode_hello(struct sock *sk, struct sk_buff *skb);
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void dn_neigh_pointopoint_hello(struct sk_buff *skb);
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int dn_neigh_elist(struct net_device *dev, unsigned char *ptr, int n);
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int dn_to_neigh_output(struct sock *sk, struct sk_buff *skb);
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extern struct neigh_table dn_neigh_table;
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#endif /* _NET_DN_NEIGH_H */
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