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1.1 root 1: /*
2: * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
3: *
4: * @APPLE_LICENSE_HEADER_START@
5: *
6: * The contents of this file constitute Original Code as defined in and
7: * are subject to the Apple Public Source License Version 1.1 (the
8: * "License"). You may not use this file except in compliance with the
9: * License. Please obtain a copy of the License at
10: * http://www.apple.com/publicsource and read it before using this file.
11: *
12: * This Original Code and all software distributed under the License are
13: * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14: * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15: * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16: * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17: * License for the specific language governing rights and limitations
18: * under the License.
19: *
20: * @APPLE_LICENSE_HEADER_END@
21: */
22: /*
23: * Copyright (c) 1982, 1986, 1989, 1993
24: * The Regents of the University of California. All rights reserved.
25: *
26: * Redistribution and use in source and binary forms, with or without
27: * modification, are permitted provided that the following conditions
28: * are met:
29: * 1. Redistributions of source code must retain the above copyright
30: * notice, this list of conditions and the following disclaimer.
31: * 2. Redistributions in binary form must reproduce the above copyright
32: * notice, this list of conditions and the following disclaimer in the
33: * documentation and/or other materials provided with the distribution.
34: * 3. All advertising materials mentioning features or use of this software
35: * must display the following acknowledgement:
36: * This product includes software developed by the University of
37: * California, Berkeley and its contributors.
38: * 4. Neither the name of the University nor the names of its contributors
39: * may be used to endorse or promote products derived from this software
40: * without specific prior written permission.
41: *
42: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
43: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
44: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
45: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
46: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
47: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
48: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
49: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
50: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
51: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52: * SUCH DAMAGE.
53: *
54: * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
55: */
56:
57: #ifndef _NETINET_UDP_VAR_H_
58: #define _NETINET_UDP_VAR_H_
59:
60: #include <sys/sysctl.h>
61:
62: /*
63: * UDP kernel structures and variables.
64: */
65: struct udpiphdr {
66: struct ipovly ui_i; /* overlaid ip structure */
67: struct udphdr ui_u; /* udp header */
68: };
69: #define ui_x1 ui_i.ih_x1
70: #define ui_pr ui_i.ih_pr
71: #define ui_len ui_i.ih_len
72: #define ui_src ui_i.ih_src
73: #define ui_dst ui_i.ih_dst
74: #define ui_sport ui_u.uh_sport
75: #define ui_dport ui_u.uh_dport
76: #define ui_ulen ui_u.uh_ulen
77: #define ui_sum ui_u.uh_sum
78: #define ui_next ui_i.ih_next
79: #define ui_prev ui_i.ih_prev
80:
81: struct udpcb {
82: /* XXX - these should be by reference so we can do options quickly */
83: struct ip udb_ip;
84: struct udphdr udb_uh;
85: struct sockaddr_in udb_conn;
86: struct in_hostcache *udb_hc;
87: struct mbuf *udb_queue;
88: };
89: #define inptoudpcb(inp) ((struct udpdb *)(inp)->inp_ppcb)
90:
91: struct udpstat {
92: /* input statistics: */
93: u_long udps_ipackets; /* total input packets */
94: u_long udps_hdrops; /* packet shorter than header */
95: u_long udps_badsum; /* checksum error */
96: u_long udps_badlen; /* data length larger than packet */
97: u_long udps_noport; /* no socket on port */
98: u_long udps_noportbcast; /* of above, arrived as broadcast */
99: u_long udps_fullsock; /* not delivered, input socket full */
100: u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
101: u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
102: /* output statistics: */
103: u_long udps_opackets; /* total output packets */
104: u_long udps_fastout; /* output packets on fast path */
105: };
106:
107: /*
108: * Names for UDP sysctl objects
109: */
110: #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
111: #define UDPCTL_STATS 2 /* statistics (read-only) */
112: #define UDPCTL_MAXDGRAM 3 /* max datagram size */
113: #define UDPCTL_RECVSPACE 4 /* default receive buffer space */
114: #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
115: #define UDPCTL_MAXID 6
116:
117: #define UDPCTL_NAMES { \
118: { 0, 0 }, \
119: { "checksum", CTLTYPE_INT }, \
120: { "stats", CTLTYPE_STRUCT }, \
121: { "maxdgram", CTLTYPE_INT }, \
122: { "recvspace", CTLTYPE_INT }, \
123: { "pcblist", CTLTYPE_STRUCT }, \
124: }
125:
126: #ifdef KERNEL
127: SYSCTL_DECL(_net_inet_udp);
128:
129: extern struct pr_usrreqs udp_usrreqs;
130:
131: void udp_ctlinput __P((int, struct sockaddr *, void *));
132: void udp_init __P((void));
133: void udp_input __P((struct mbuf *, int));
134: #endif
135:
136: #endif
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