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authorFlorian Westphal <fw@strlen.de>2020-05-04 11:06:07 +0300
committerSteffen Klassert <steffen.klassert@secunet.com>2020-05-06 10:40:08 +0300
commitede64dd2bfe2710549f1922a214959d966baaac3 (patch)
tree3d9f68f5fb12c1eccdb48b551076a3dda1cecd5c /include/net/xfrm.h
parent3e50ddd8b8d5067796fc87cbbb25c71451ccb385 (diff)
downloadlinux-ede64dd2bfe2710549f1922a214959d966baaac3.tar.xz
xfrm: place xfrm6_local_dontfrag in xfrm.h
so next patch can re-use it from net/xfrm/xfrm_output.c without causing a linker error when IPV6 is a module. Signed-off-by: Florian Westphal <fw@strlen.de> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'include/net/xfrm.h')
-rw-r--r--include/net/xfrm.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 10295ab4cdfb..8f7fb033d557 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1993,4 +1993,20 @@ static inline int xfrm_tunnel_check(struct sk_buff *skb, struct xfrm_state *x,
return 0;
}
+
+#if IS_ENABLED(CONFIG_IPV6)
+static inline bool xfrm6_local_dontfrag(const struct sock *sk)
+{
+ int proto;
+
+ if (!sk || sk->sk_family != AF_INET6)
+ return false;
+
+ proto = sk->sk_protocol;
+ if (proto == IPPROTO_UDP || proto == IPPROTO_RAW)
+ return inet6_sk(sk)->dontfrag;
+
+ return false;
+}
+#endif
#endif /* _NET_XFRM_H */