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authorDaniel Borkmann <daniel@iogearbox.net>2021-03-10 03:38:09 +0300
committerDavid S. Miller <davem@davemloft.net>2021-03-10 23:24:18 +0300
commitc4c877b2732466b4c63217baad05c96f775912c7 (patch)
treeab4f6ec6d5a77c09566172855150d4968a88f113 /include/net
parent05a59d79793d482f628a31753c671f2e92178a21 (diff)
downloadlinux-c4c877b2732466b4c63217baad05c96f775912c7.tar.xz
net: Consolidate common blackhole dst ops
Move generic blackhole dst ops to the core and use them from both ipv4_dst_blackhole_ops and ip6_dst_blackhole_ops where possible. No functional change otherwise. We need these also in other locations and having to define them over and over again is not great. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/dst.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/net/dst.h b/include/net/dst.h
index 26f134ad3a25..75b1e734e9c2 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -550,4 +550,15 @@ static inline void skb_dst_update_pmtu_no_confirm(struct sk_buff *skb, u32 mtu)
dst->ops->update_pmtu(dst, NULL, skb, mtu, false);
}
+struct dst_entry *dst_blackhole_check(struct dst_entry *dst, u32 cookie);
+void dst_blackhole_update_pmtu(struct dst_entry *dst, struct sock *sk,
+ struct sk_buff *skb, u32 mtu, bool confirm_neigh);
+void dst_blackhole_redirect(struct dst_entry *dst, struct sock *sk,
+ struct sk_buff *skb);
+u32 *dst_blackhole_cow_metrics(struct dst_entry *dst, unsigned long old);
+struct neighbour *dst_blackhole_neigh_lookup(const struct dst_entry *dst,
+ struct sk_buff *skb,
+ const void *daddr);
+unsigned int dst_blackhole_mtu(const struct dst_entry *dst);
+
#endif /* _NET_DST_H */