[IPV4]: IGMP on-the-wire data is net-endian

Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

include/linux/igmp.h

@@ -30,8 +30,8 @@ struct igmphdr
 {
 	__u8 type;
 	__u8 code;		/* For newer IGMP */
-	__u16 csum;
-	__u32 group;
+	__be16 csum;
+	__be32 group;
 };
 
 /* V3 group record types [grec_type] */
@@ -45,25 +45,25 @@ struct igmphdr
 struct igmpv3_grec {
 	__u8	grec_type;
 	__u8	grec_auxwords;
-	__u16	grec_nsrcs;
-	__u32	grec_mca;
-	__u32	grec_src[0];
+	__be16	grec_nsrcs;
+	__be32	grec_mca;
+	__be32	grec_src[0];
 };
 
 struct igmpv3_report {
 	__u8 type;
 	__u8 resv1;
-	__u16 csum;
-	__u16 resv2;
-	__u16 ngrec;
+	__be16 csum;
+	__be16 resv2;
+	__be16 ngrec;
 	struct igmpv3_grec grec[0];
 };
 
 struct igmpv3_query {
 	__u8 type;
 	__u8 code;
-	__u16 csum;
-	__u32 group;
+	__be16 csum;
+	__be32 group;
 #if defined(__LITTLE_ENDIAN_BITFIELD)
 	__u8 qrv:3,
 	     suppress:1,
@@ -76,8 +76,8 @@ struct igmpv3_query {
 #error "Please fix <asm/byteorder.h>"
 #endif
 	__u8 qqic;
-	__u16 nsrcs;
-	__u32 srcs[0];
+	__be16 nsrcs;
+	__be32 srcs[0];
 };
 
 #define IGMP_HOST_MEMBERSHIP_QUERY	0x11	/* From RFC1112 */