2 * INET An implementation of the TCP/IP protocol suite for the LINUX
3 * operating system. INET is implemented using the BSD Socket
4 * interface as the means of communication with the user level.
6 * Definitions for the UDP protocol.
8 * Version: @(#)udp.h 1.0.2 04/28/93
10 * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version
15 * 2 of the License, or (at your option) any later version.
20 #include <linux/types.h>
29 /* UDP socket options */
30 #define UDP_CORK 1 /* Never send partially complete segments */
31 #define UDP_ENCAP 100 /* Set the socket to accept encapsulated packets */
33 /* UDP encapsulation types */
34 #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */
35 #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */
39 #include <linux/config.h>
44 int pending; /* Any pending frames ? */
45 unsigned int corkflag; /* Cork is required */
46 __u16 encap_type; /* Is this an Encapsulation socket? */
48 * Following member retains the infomation to create a UDP header
49 * when the socket is uncorked.
51 __u16 len; /* total length of pending frames */
54 /* WARNING: don't change the layout of the members in udp_sock! */
57 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
58 struct ipv6_pinfo *pinet6;
64 static inline struct udp_opt * udp_sk(const struct sock *__sk)
66 return &((struct udp_sock *)__sk)->udp;
71 #endif /* _LINUX_UDP_H */