1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * Copyright (c) 1982, 1986, 1989, 1993 30 * The Regents of the University of California. All rights reserved. 31 * 32 * Redistribution and use in source and binary forms, with or without 33 * modification, are permitted provided that the following conditions 34 * are met: 35 * 1. Redistributions of source code must retain the above copyright 36 * notice, this list of conditions and the following disclaimer. 37 * 2. Redistributions in binary form must reproduce the above copyright 38 * notice, this list of conditions and the following disclaimer in the 39 * documentation and/or other materials provided with the distribution. 40 * 3. All advertising materials mentioning features or use of this software 41 * must display the following acknowledgement: 42 * This product includes software developed by the University of 43 * California, Berkeley and its contributors. 44 * 4. Neither the name of the University nor the names of its contributors 45 * may be used to endorse or promote products derived from this software 46 * without specific prior written permission. 47 * 48 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 49 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 50 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 51 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 52 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 53 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 54 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 55 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 56 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 57 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 58 * SUCH DAMAGE. 59 * 60 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93 61 */ 62 63#ifndef _NETINET_UDP_VAR_H_ 64#define _NETINET_UDP_VAR_H_ 65#include <sys/appleapiopts.h> 66 67#include <sys/sysctl.h> 68 69/* 70 * UDP kernel structures and variables. 71 */ 72struct udpiphdr { 73 struct ipovly ui_i; /* overlaid ip structure */ 74 struct udphdr ui_u; /* udp header */ 75}; 76#define ui_x1 ui_i.ih_x1 77#define ui_pr ui_i.ih_pr 78#define ui_len ui_i.ih_len 79#define ui_src ui_i.ih_src 80#define ui_dst ui_i.ih_dst 81#define ui_sport ui_u.uh_sport 82#define ui_dport ui_u.uh_dport 83#define ui_ulen ui_u.uh_ulen 84#define ui_sum ui_u.uh_sum 85#define ui_next ui_i.ih_next 86#define ui_prev ui_i.ih_prev 87 88struct udpstat { 89 /* input statistics: */ 90 u_int32_t udps_ipackets; /* total input packets */ 91 u_int32_t udps_hdrops; /* packet shorter than header */ 92 u_int32_t udps_badsum; /* checksum error */ 93 u_int32_t udps_badlen; /* data length larger than packet */ 94 u_int32_t udps_noport; /* no socket on port */ 95 u_int32_t udps_noportbcast; /* of above, arrived as broadcast */ 96 u_int32_t udps_fullsock; /* not delivered, input socket full */ 97 u_int32_t udpps_pcbcachemiss; /* input packets missing pcb cache */ 98 u_int32_t udpps_pcbhashmiss; /* input packets not for hashed pcb */ 99 /* output statistics: */ 100 u_int32_t udps_opackets; /* total output packets */ 101 u_int32_t udps_fastout; /* output packets on fast path */ 102#ifndef __APPLE__ 103 u_int32_t udps_nosum; /* no checksum */ 104 /* of no socket on port, arrived as multicast */ 105 u_int32_t udps_noportmcast; 106#endif 107}; 108 109/* 110 * Names for UDP sysctl objects 111 */ 112#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */ 113#define UDPCTL_STATS 2 /* statistics (read-only) */ 114#define UDPCTL_MAXDGRAM 3 /* max datagram size */ 115#define UDPCTL_RECVSPACE 4 /* default receive buffer space */ 116#define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */ 117#define UDPCTL_MAXID 6 118 119#ifdef KERNEL_PRIVATE 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 129SYSCTL_DECL(_net_inet_udp); 130 131extern struct pr_usrreqs udp_usrreqs; 132extern struct inpcbhead udb; 133extern struct inpcbinfo udbinfo; 134extern u_long udp_sendspace; 135extern u_long udp_recvspace; 136extern struct udpstat udpstat; 137extern int log_in_vain; 138 139void udp_ctlinput(int, struct sockaddr *, void *); 140int udp_ctloutput(struct socket *, struct sockopt *); 141 142void udp_init(void) __attribute__((section("__TEXT, initcode"))); 143void udp_input(struct mbuf *, int); 144 145void udp_notify(struct inpcb *inp, int errno); 146int udp_shutdown(struct socket *so); 147int udp_lock (struct socket *, int, int); 148int udp_unlock (struct socket *, int, int); 149void udp_slowtimo (void); 150#ifdef _KERN_LOCKS_H_ 151lck_mtx_t * udp_getlock (struct socket *, int); 152#else 153void * udp_getlock (struct socket *, int); 154#endif 155 156#endif /* KERNEL_PRIVATE */ 157#endif /* _NETINET_UDP_VAR_H_ */ 158