X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fudp.h;h=8ec703f462da9524956a0cef143e3b1d595efcae;hb=7616ee95f27a04fd5a6434e9ef4a82cec4b2807c;hp=014b41d1e308ca27f01e7f94bf46d906dc97252d;hpb=c730f5b621afa33e9f4939da9078669162ebff4e;p=linux-2.6

diff --git a/include/linux/udp.h b/include/linux/udp.h
index 014b41d1e3..8ec703f462 100644
--- a/include/linux/udp.h
+++ b/include/linux/udp.h
@@ -23,9 +23,18 @@ struct udphdr {
 	__be16	source;
 	__be16	dest;
 	__be16	len;
-	__be16	check;
+	__sum16	check;
 };
 
+#ifdef __KERNEL__
+#include <linux/skbuff.h>
+
+static inline struct udphdr *udp_hdr(const struct sk_buff *skb)
+{
+	return (struct udphdr *)skb_transport_header(skb);
+}
+#endif
+
 /* UDP socket options */
 #define UDP_CORK	1	/* Never send partially complete segments */
 #define UDP_ENCAP	100	/* Set the socket to accept encapsulated packets */
@@ -33,11 +42,13 @@ struct udphdr {
 /* UDP encapsulation types */
 #define UDP_ENCAP_ESPINUDP_NON_IKE	1 /* draft-ietf-ipsec-nat-t-ike-00/01 */
 #define UDP_ENCAP_ESPINUDP	2 /* draft-ietf-ipsec-udp-encaps-06 */
+#define UDP_ENCAP_L2TPINUDP	3 /* rfc2661 */
 
 #ifdef __KERNEL__
 #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 +61,28 @@ 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    */
+	__u8		 unused[3];
+	/*
+	 * For encapsulation sockets.
+	 */
+	int (*encap_rcv)(struct sock *sk, struct sk_buff *skb);
 };
 
 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