1 files changed, 63 insertions, 0 deletions

diff --git a/include/linux/udp.h b/include/linux/udp.h
new file mode 100644
index 000000000000..b60e0b4a25c4
--- /dev/null
+++ b/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 */