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Annotation of 43BSDReno/sys/netinet/udp_var.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1982, 1986, 1989 Regents of the University of California.
        !             3:  * All rights reserved.
        !             4:  *
        !             5:  * Redistribution is only permitted until one year after the first shipment
        !             6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !             7:  * binary forms are permitted provided that: (1) source distributions retain
        !             8:  * this entire copyright notice and comment, and (2) distributions including
        !             9:  * binaries display the following acknowledgement:  This product includes
        !            10:  * software developed by the University of California, Berkeley and its
        !            11:  * contributors'' in the documentation or other materials provided with the
        !            12:  * distribution and in all advertising materials mentioning features or use
        !            13:  * of this software.  Neither the name of the University nor the names of
        !            14:  * its contributors may be used to endorse or promote products derived from
        !            15:  * this software without specific prior written permission.
        !            16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            19:  *
        !            20:  *     @(#)udp_var.h   7.7 (Berkeley) 6/28/90
        !            21:  */
        !            22: 
        !            23: /*
        !            24:  * UDP kernel structures and variables.
        !            25:  */
        !            26: struct udpiphdr {
        !            27:        struct  ipovly ui_i;            /* overlaid ip structure */
        !            28:        struct  udphdr ui_u;            /* udp header */
        !            29: };
        !            30: #define        ui_next         ui_i.ih_next
        !            31: #define        ui_prev         ui_i.ih_prev
        !            32: #define        ui_x1           ui_i.ih_x1
        !            33: #define        ui_pr           ui_i.ih_pr
        !            34: #define        ui_len          ui_i.ih_len
        !            35: #define        ui_src          ui_i.ih_src
        !            36: #define        ui_dst          ui_i.ih_dst
        !            37: #define        ui_sport        ui_u.uh_sport
        !            38: #define        ui_dport        ui_u.uh_dport
        !            39: #define        ui_ulen         ui_u.uh_ulen
        !            40: #define        ui_sum          ui_u.uh_sum
        !            41: 
        !            42: struct udpstat {
        !            43:                                /* input statistics: */
        !            44:        int     udps_ipackets;          /* total input packets */
        !            45:        int     udps_hdrops;            /* packet shorter than header */
        !            46:        int     udps_badsum;            /* checksum error */
        !            47:        int     udps_badlen;            /* data length larger than packet */
        !            48:        int     udps_noport;            /* no socket on port */
        !            49:        int     udps_noportbcast;       /* of above, arrived as broadcast */
        !            50:        int     udps_fullsock;          /* not delivered, input socket full */
        !            51:        int     udpps_pcbcachemiss;     /* input packets missing pcb cache */
        !            52:                                /* output statistics: */
        !            53:        int     udps_opackets;          /* total output packets */
        !            54: };
        !            55: 
        !            56: #define        UDP_TTL         30      /* default time to live for UDP packets */
        !            57: 
        !            58: #ifdef KERNEL
        !            59: struct inpcb udb;
        !            60: struct udpstat udpstat;
        !            61: #endif

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