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1.1 root 1: /*
2: * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
7: * Reserved. This file contains Original Code and/or Modifications of
8: * Original Code as defined in and that are subject to the Apple Public
9: * Source License Version 1.1 (the "License"). You may not use this file
10: * except in compliance with the License. Please obtain a copy of the
11: * License at http://www.apple.com/publicsource and read it before using
12: * this file.
13: *
14: * The Original Code and all software distributed under the License are
15: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
16: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
17: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
18: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
19: * License for the specific language governing rights and limitations
20: * under the License.
21: *
22: * @APPLE_LICENSE_HEADER_END@
23: */
24:
25: /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
26: /*
27: * Copyright (c) 1982, 1986, 1989, 1993
28: * The Regents of the University of California. All rights reserved.
29: *
30: * Redistribution and use in source and binary forms, with or without
31: * modification, are permitted provided that the following conditions
32: * are met:
33: * 1. Redistributions of source code must retain the above copyright
34: * notice, this list of conditions and the following disclaimer.
35: * 2. Redistributions in binary form must reproduce the above copyright
36: * notice, this list of conditions and the following disclaimer in the
37: * documentation and/or other materials provided with the distribution.
38: * 3. All advertising materials mentioning features or use of this software
39: * must display the following acknowledgement:
40: * This product includes software developed by the University of
41: * California, Berkeley and its contributors.
42: * 4. Neither the name of the University nor the names of its contributors
43: * may be used to endorse or promote products derived from this software
44: * without specific prior written permission.
45: *
46: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
47: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
48: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
49: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
50: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
51: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
52: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
53: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
54: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
55: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
56: * SUCH DAMAGE.
57: *
58: * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
59: */
60:
61: /*
62: * UDP kernel structures and variables.
63: */
64: struct udpiphdr {
65: struct ipovly ui_i; /* overlaid ip structure */
66: struct udphdr ui_u; /* udp header */
67: };
68: #define ui_next ui_i.ih_next
69: #define ui_prev ui_i.ih_prev
70: #define ui_x1 ui_i.ih_x1
71: #define ui_pr ui_i.ih_pr
72: #define ui_len ui_i.ih_len
73: #define ui_src ui_i.ih_src
74: #define ui_dst ui_i.ih_dst
75: #define ui_sport ui_u.uh_sport
76: #define ui_dport ui_u.uh_dport
77: #define ui_ulen ui_u.uh_ulen
78: #define ui_sum ui_u.uh_sum
79:
80: struct udpstat {
81: /* input statistics: */
82: u_long udps_ipackets; /* total input packets */
83: u_long udps_hdrops; /* packet shorter than header */
84: u_long udps_badsum; /* checksum error */
85: u_long udps_badlen; /* data length larger than packet */
86: u_long udps_noport; /* no socket on port */
87: u_long udps_noportbcast; /* of above, arrived as broadcast */
88: u_long udps_fullsock; /* not delivered, input socket full */
89: u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
90: /* output statistics: */
91: u_long udps_opackets; /* total output packets */
92: };
93:
94: /*
95: * Names for UDP sysctl objects
96: */
97: #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
98: #define UDPCTL_MAXID 2
99:
100: #define UDPCTL_NAMES { \
101: { 0, 0 }, \
102: { "checksum", CTLTYPE_INT }, \
103: }
104:
105: #ifdef _KERNEL
106: extern struct inpcb udb;
107: extern struct udpstat udpstat;
108:
109: void udp_ctlinput __P((int, struct sockaddr *, struct ip *));
110: void udp_init __P((void));
111: void udp_input __P((struct mbuf *, int));
112: int udp_output __P((struct inpcb *,
113: struct mbuf *, struct mbuf *, struct mbuf *));
114: int udp_sysctl __P((int *, u_int, void *, size_t *, void *, size_t));
115: int udp_usrreq __P((struct socket *,
116: int, struct mbuf *, struct mbuf *, struct mbuf *));
117: #endif
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