From 6df2db5d37ba3df8c80d90c15f1e20480be43f75 Mon Sep 17 00:00:00 2001 From: Xin Long Date: Mon, 6 Jul 2020 20:01:30 +0800 Subject: tunnel4: add cb_handler to struct xfrm_tunnel This patch is to register a callback function tunnel4_rcv_cb with is_ipip set in a xfrm_input_afinfo object for tunnel4 and tunnel64. It will be called by xfrm_rcv_cb() from xfrm_input() when family is AF_INET and proto is IPPROTO_IPIP or IPPROTO_IPV6. v1->v2: - Fix a sparse warning caused by the missing "__rcu", as Jakub noticed. - Handle the err returned by xfrm_input_register_afinfo() in tunnel4_init/fini(), as Sabrina noticed. v2->v3: - Add "#if IS_ENABLED(CONFIG_INET_XFRM_TUNNEL)" to fix the build error when xfrm is disabled, reported by kbuild test robot. Signed-off-by: Xin Long Signed-off-by: Steffen Klassert --- include/net/xfrm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net/xfrm.h') diff --git a/include/net/xfrm.h b/include/net/xfrm.h index 4666bc9e59ab..c1ec6294d773 100644 --- a/include/net/xfrm.h +++ b/include/net/xfrm.h @@ -1416,6 +1416,7 @@ struct xfrm6_protocol { /* XFRM tunnel handlers. */ struct xfrm_tunnel { int (*handler)(struct sk_buff *skb); + int (*cb_handler)(struct sk_buff *skb, int err); int (*err_handler)(struct sk_buff *skb, u32 info); struct xfrm_tunnel __rcu *next; -- cgit v1.2.3