40 lines
1.0 KiB
Diff
40 lines
1.0 KiB
Diff
--- a/include/linux/netfilter/nf_conntrack_proto_gre.h
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+++ b/include/linux/netfilter/nf_conntrack_proto_gre.h
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@@ -30,4 +30,36 @@ void nf_ct_gre_keymap_destroy(struct nf_
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bool gre_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff,
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struct net *net, struct nf_conntrack_tuple *tuple);
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+
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+
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+/* GRE is a mess: Four different standards */
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+struct gre_hdr {
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+#if defined(__LITTLE_ENDIAN_BITFIELD)
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+ __u16 rec:3,
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+ srr:1,
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+ seq:1,
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+ key:1,
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+ routing:1,
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+ csum:1,
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+ version:3,
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+ reserved:4,
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+ ack:1;
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+#elif defined(__BIG_ENDIAN_BITFIELD)
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+ __u16 csum:1,
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+ routing:1,
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+ key:1,
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+ seq:1,
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+ srr:1,
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+ rec:3,
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+ ack:1,
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+ reserved:4,
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+ version:3;
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+#else
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+#error "Adjust your <asm/byteorder.h> defines"
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+#endif
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+ __be16 protocol;
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+};
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+
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+
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+
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#endif /* _CONNTRACK_PROTO_GRE_H */
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