bsd/netinet/udp_var.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1982, 1986, 1989, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  *
  29  * Redistribution and use in source and binary forms, with or without
  30  * modification, are permitted provided that the following conditions
  31  * are met:
  32  * 1. Redistributions of source code must retain the above copyright
  33  *    notice, this list of conditions and the following disclaimer.
  34  * 2. Redistributions in binary form must reproduce the above copyright
  35  *    notice, this list of conditions and the following disclaimer in the
  36  *    documentation and/or other materials provided with the distribution.
  37  * 3. All advertising materials mentioning features or use of this software
  38  *    must display the following acknowledgement:
  39  *      This product includes software developed by the University of
  40  *      California, Berkeley and its contributors.
  41  * 4. Neither the name of the University nor the names of its contributors
  42  *    may be used to endorse or promote products derived from this software
  43  *    without specific prior written permission.
  44  *
  45  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  46  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  47  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  48  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  49  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  50  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  51  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  52  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  53  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  54  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  55  * SUCH DAMAGE.
  56  *
  57  *      @(#)udp_var.h   8.1 (Berkeley) 6/10/93
  58  */
  59
  60 #ifndef _NETINET_UDP_VAR_H_
  61 #define _NETINET_UDP_VAR_H_
  62 #include <sys/appleapiopts.h>
  63
  64 #include <sys/sysctl.h>
  65 #ifdef __APPLE_API_PRIVATE
  66
  67 /*
  68  * UDP kernel structures and variables.
  69  */
  70 struct  udpiphdr {
  71         struct  ipovly ui_i;            /* overlaid ip structure */
  72         struct  udphdr ui_u;            /* udp header */
  73 };
  74 #define ui_x1           ui_i.ih_x1
  75 #define ui_pr           ui_i.ih_pr
  76 #define ui_len          ui_i.ih_len
  77 #define ui_src          ui_i.ih_src
  78 #define ui_dst          ui_i.ih_dst
  79 #define ui_sport        ui_u.uh_sport
  80 #define ui_dport        ui_u.uh_dport
  81 #define ui_ulen         ui_u.uh_ulen
  82 #define ui_sum          ui_u.uh_sum
  83 #define ui_next         ui_i.ih_next
  84 #define ui_prev         ui_i.ih_prev
  85 #endif /* __APPLE_API_PRIVATE */
  86
  87 #ifdef __APPLE_API_UNSTABLE
  88 struct  udpstat {
  89                                 /* input statistics: */
  90         u_long  udps_ipackets;          /* total input packets */
  91         u_long  udps_hdrops;            /* packet shorter than header */
  92         u_long  udps_badsum;            /* checksum error */
  93         u_long  udps_badlen;            /* data length larger than packet */
  94         u_long  udps_noport;            /* no socket on port */
  95         u_long  udps_noportbcast;       /* of above, arrived as broadcast */
  96         u_long  udps_fullsock;          /* not delivered, input socket full */
  97         u_long  udpps_pcbcachemiss;     /* input packets missing pcb cache */
  98         u_long  udpps_pcbhashmiss;      /* input packets not for hashed pcb */
  99                                 /* output statistics: */
 100         u_long  udps_opackets;          /* total output packets */
 101         u_long  udps_fastout;           /* output packets on fast path */
 102 #ifndef __APPLE__
 103         u_long  udps_nosum;             /* no checksum */
 104         /* of no socket on port, arrived as multicast */
 105         u_long  udps_noportmcast;
 106 #endif
 107 };
 108 #endif /* __APPLE_API_UNSTABLE */
 109
 110 /*
 111  * Names for UDP sysctl objects
 112  */
 113 #define UDPCTL_CHECKSUM         1       /* checksum UDP packets */
 114 #define UDPCTL_STATS            2       /* statistics (read-only) */
 115 #define UDPCTL_MAXDGRAM         3       /* max datagram size */
 116 #define UDPCTL_RECVSPACE        4       /* default receive buffer space */
 117 #define UDPCTL_PCBLIST          5       /* list of PCBs for UDP sockets */
 118 #define UDPCTL_MAXID            6
 119
 120 #define UDPCTL_NAMES { \
 121         { 0, 0 }, \
 122         { "checksum", CTLTYPE_INT }, \
 123         { "stats", CTLTYPE_STRUCT }, \
 124         { "maxdgram", CTLTYPE_INT }, \
 125         { "recvspace", CTLTYPE_INT }, \
 126         { "pcblist", CTLTYPE_STRUCT }, \
 127 }
 128
 129 #ifdef __APPLE_API_PRIVATE
 130 #ifdef KERNEL
 131 SYSCTL_DECL(_net_inet_udp);
 132
 133 extern struct   pr_usrreqs udp_usrreqs;
 134 extern struct   inpcbhead udb;
 135 extern struct   inpcbinfo udbinfo;
 136 extern u_long   udp_sendspace;
 137 extern u_long   udp_recvspace;
 138 extern struct   udpstat udpstat;
 139 extern int      log_in_vain;
 140
 141 void    udp_ctlinput __P((int, struct sockaddr *, void *));
 142 void    udp_init __P((void));
 143 void    udp_input __P((struct mbuf *, int));
 144
 145 void    udp_notify __P((struct inpcb *inp, int errno));
 146 int     udp_shutdown __P((struct socket *so));
 147 #endif
 148 #endif /* __APPLE_API_PRIVATE */
 149
 150 #endif