3 files changed, 14 insertions, 0 deletions

diff --git a/include/linux/in.h b/include/linux/in.h
index 2619859f6e1b..1912e7c0bc26 100644
--- a/include/linux/in.h
+++ b/include/linux/in.h
@@ -45,6 +45,7 @@ enum {
 
   IPPROTO_COMP   = 108,                /* Compression Header protocol */
   IPPROTO_SCTP   = 132,         /* Stream Control Transport Protocol    */
+  IPPROTO_UDPLITE = 136,        /* UDP-Lite (RFC 3828)                  */
 
   IPPROTO_RAW    = 255,         /* Raw IP packets                       */
   IPPROTO_MAX
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 361409094649..592b66679823 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -264,6 +264,7 @@ struct ucred {
 #define SOL_IPV6        41
 #define SOL_ICMPV6      58
 #define SOL_SCTP        132
+#define SOL_UDPLITE     136     /* UDP-Lite (RFC 3828) */
 #define SOL_RAW         255
 #define SOL_IPX         256
 #define SOL_AX25        257
diff --git a/include/linux/udp.h b/include/linux/udp.h
index 014b41d1e308..564f3b050105 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -38,6 +38,7 @@ struct udphdr {
 #include <linux/types.h>
 
 #include <net/inet_sock.h>
+#define UDP_HTABLE_SIZE         128
 
 struct udp_sock {
         /* inet_sock has to be the first member */
@@ -50,12 +51,23 @@ struct udp_sock {
          * when the socket is uncorked.
          */
         __u16            len;           /* total length of pending frames */
+        /*
+         * Fields specific to UDP-Lite.
+         */
+        __u16            pcslen;
+        __u16            pcrlen;
+/* indicator bits used by pcflag: */
+#define UDPLITE_BIT      0x1            /* set by udplite proto init function */
+#define UDPLITE_SEND_CC  0x2            /* set via udplite setsockopt         */
+#define UDPLITE_RECV_CC  0x4            /* set via udplite setsocktopt        */
+        __u8             pcflag;        /* marks socket as UDP-Lite if > 0    */
 };
 
 static inline struct udp_sock *udp_sk(const struct sock *sk)
 {
         return (struct udp_sock *)sk;
 }
+#define IS_UDPLITE(__sk) (udp_sk(__sk)->pcflag)
 
 #endif