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