Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

include/linux/udp.h

@@ -0,0 +1,63 @@
+/*
+ * INET		An implementation of the TCP/IP protocol suite for the LINUX
+ *		operating system.  INET is implemented using the  BSD Socket
+ *		interface as the means of communication with the user level.
+ *
+ *		Definitions for the UDP protocol.
+ *
+ * Version:	@(#)udp.h	1.0.2	04/28/93
+ *
+ * Author:	Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
+ *
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ */
+#ifndef _LINUX_UDP_H
+#define _LINUX_UDP_H
+
+#include <linux/types.h>
+
+struct udphdr {
+	__u16	source;
+	__u16	dest;
+	__u16	len;
+	__u16	check;
+};
+
+/* UDP socket options */
+#define UDP_CORK	1	/* Never send partially complete segments */
+#define UDP_ENCAP	100	/* Set the socket to accept encapsulated packets */
+
+/* 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 */
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <net/sock.h>
+#include <linux/ip.h>
+
+struct udp_sock {
+	/* inet_sock has to be the first member */
+	struct inet_sock inet;
+	int		 pending;	/* Any pending frames ? */
+	unsigned int	 corkflag;	/* Cork is required */
+  	__u16		 encap_type;	/* Is this an Encapsulation socket? */
+	/*
+	 * Following member retains the infomation to create a UDP header
+	 * when the socket is uncorked.
+	 */
+	__u16		 len;		/* total length of pending frames */
+};
+
+static inline struct udp_sock *udp_sk(const struct sock *sk)
+{
+	return (struct udp_sock *)sk;
+}
+
+#endif
+
+#endif	/* _LINUX_UDP_H */