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Annotation of embedaddon/strongswan/src/include/linux/udp.h, revision 1.1.1.1

1.1       misho       1: /*
                      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.
                      5:  *
                      6:  *             Definitions for the UDP protocol.
                      7:  *
                      8:  * Version:    @(#)udp.h       1.0.2   04/28/93
                      9:  *
                     10:  * Author:     Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
                     11:  *
                     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.
                     16:  */
                     17: #ifndef _LINUX_UDP_H
                     18: #define _LINUX_UDP_H
                     19: 
                     20: #include <linux/types.h>
                     21: 
                     22: struct udphdr {
                     23:        __u16   source;
                     24:        __u16   dest;
                     25:        __u16   len;
                     26:        __u16   check;
                     27: };
                     28: 
                     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 */
                     32: 
                     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 */
                     36: 
                     37: #ifdef __KERNEL__
                     38: #include <linux/config.h>
                     39: #include <linux/types.h>
                     40: 
                     41: #include <net/inet_sock.h>
                     42: 
                     43: struct udp_sock {
                     44:        /* inet_sock has to be the first member */
                     45:        struct inet_sock inet;
                     46:        int              pending;       /* Any pending frames ? */
                     47:        unsigned int     corkflag;      /* Cork is required */
                     48:        __u16            encap_type;    /* Is this an Encapsulation socket? */
                     49:        /*
                     50:         * Following member retains the information to create a UDP header
                     51:         * when the socket is uncorked.
                     52:         */
                     53:        __u16            len;           /* total length of pending frames */
                     54: };
                     55: 
                     56: static __inline__ struct udp_sock *udp_sk(const struct sock *sk)
                     57: {
                     58:        return (struct udp_sock *)sk;
                     59: }
                     60: 
                     61: #endif
                     62: 
                     63: #endif /* _LINUX_UDP_H */