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Annotation of 43BSDReno/sys/netinet/udp_var.h, revision 1.1.1.1

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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