From ad6f939ab193750cc94a265f58e007fb598c97b7 Mon Sep 17 00:00:00 2001 From: Tom Herbert Date: Mon, 5 Jan 2015 13:56:17 -0800 Subject: ip: Add offset parameter to ip_cmsg_recv Add ip_cmsg_recv_offset function which takes an offset argument that indicates the starting offset in skb where data is being received from. This will be useful in the case of UDP and provided checksum to user space. ip_cmsg_recv is an inline call to ip_cmsg_recv_offset with offset of zero. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller --- include/uapi/linux/in.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi/linux/in.h') diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h index c33a65e3d62c..589ced069e8a 100644 --- a/include/uapi/linux/in.h +++ b/include/uapi/linux/in.h @@ -109,6 +109,7 @@ struct in_addr { #define IP_MINTTL 21 #define IP_NODEFRAG 22 +#define IP_CHECKSUM 23 /* IP_MTU_DISCOVER values */ #define IP_PMTUDISC_DONT 0 /* Never send DF frames */ -- cgit v1.2.3-70-g09d2