1/*- 2 * Copyright (c) 1982, 1986, 1989, 1993
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3 * The Regents of the University of California. All rights reserved.
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3 * The Regents of the University of California. 4 * All rights reserved. |
5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 4. Neither the name of the University nor the names of its contributors 15 * may be used to endorse or promote products derived from this software 16 * without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
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30 * $FreeBSD: head/sys/netinet/udp_var.h 139823 2005-01-07 01:45:51Z imp $
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31 * $FreeBSD: head/sys/netinet/udp_var.h 166841 2007-02-20 10:13:11Z rwatson $ |
32 */ 33 34#ifndef _NETINET_UDP_VAR_H_
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34#define _NETINET_UDP_VAR_H_
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35#define _NETINET_UDP_VAR_H_ |
36 37/* 38 * UDP kernel structures and variables. 39 */
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39struct udpiphdr {
40 struct ipovly ui_i; /* overlaid ip structure */
41 struct udphdr ui_u; /* udp header */
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40struct udpiphdr { 41 struct ipovly ui_i; /* overlaid ip structure */ 42 struct udphdr ui_u; /* udp header */ |
43}; 44#define ui_x1 ui_i.ih_x1 45#define ui_pr ui_i.ih_pr 46#define ui_len ui_i.ih_len 47#define ui_src ui_i.ih_src 48#define ui_dst ui_i.ih_dst 49#define ui_sport ui_u.uh_sport 50#define ui_dport ui_u.uh_dport 51#define ui_ulen ui_u.uh_ulen 52#define ui_sum ui_u.uh_sum 53
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53struct udpstat {
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54struct udpstat { |
55 /* input statistics: */ 56 u_long udps_ipackets; /* total input packets */ 57 u_long udps_hdrops; /* packet shorter than header */ 58 u_long udps_badsum; /* checksum error */ 59 u_long udps_nosum; /* no checksum */ 60 u_long udps_badlen; /* data length larger than packet */ 61 u_long udps_noport; /* no socket on port */ 62 u_long udps_noportbcast; /* of above, arrived as broadcast */ 63 u_long udps_fullsock; /* not delivered, input socket full */ 64 u_long udpps_pcbcachemiss; /* input packets missing pcb cache */ 65 u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */ 66 /* output statistics: */ 67 u_long udps_opackets; /* total output packets */ 68 u_long udps_fastout; /* output packets on fast path */ 69 /* of no socket on port, arrived as multicast */ 70 u_long udps_noportmcast; 71}; 72 73/*
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73 * Names for UDP sysctl objects
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74 * Names for UDP sysctl objects. |
75 */ 76#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
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76#define UDPCTL_STATS 2 /* statistics (read-only) */
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77#define UDPCTL_STATS 2 /* statistics (read-only) */ |
78#define UDPCTL_MAXDGRAM 3 /* max datagram size */ 79#define UDPCTL_RECVSPACE 4 /* default receive buffer space */ 80#define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
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80#define UDPCTL_MAXID 6
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81#define UDPCTL_MAXID 6 |
82
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82#define UDPCTL_NAMES { \
83 { 0, 0 }, \
84 { "checksum", CTLTYPE_INT }, \
85 { "stats", CTLTYPE_STRUCT }, \
86 { "maxdgram", CTLTYPE_INT }, \
87 { "recvspace", CTLTYPE_INT }, \
88 { "pcblist", CTLTYPE_STRUCT }, \
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83#define UDPCTL_NAMES { \ 84 { 0, 0 }, \ 85 { "checksum", CTLTYPE_INT }, \ 86 { "stats", CTLTYPE_STRUCT }, \ 87 { "maxdgram", CTLTYPE_INT }, \ 88 { "recvspace", CTLTYPE_INT }, \ 89 { "pcblist", CTLTYPE_STRUCT }, \ |
90} 91 92#ifdef _KERNEL 93SYSCTL_DECL(_net_inet_udp); 94
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94extern struct pr_usrreqs udp_usrreqs;
95extern struct inpcbhead udb;
96extern struct inpcbinfo udbinfo;
97extern u_long udp_sendspace;
98extern u_long udp_recvspace;
99extern struct udpstat udpstat;
100extern int log_in_vain;
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95extern struct pr_usrreqs udp_usrreqs; 96extern struct inpcbhead udb; 97extern struct inpcbinfo udbinfo; 98extern u_long udp_sendspace; 99extern u_long udp_recvspace; 100extern struct udpstat udpstat; 101extern int log_in_vain; |
102
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102void udp_ctlinput(int, struct sockaddr *, void *);
103void udp_init(void);
104void udp_input(struct mbuf *, int);
105
106struct inpcb *
107 udp_notify(struct inpcb *inp, int errno);
108int udp_shutdown(struct socket *so);
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103void udp_ctlinput(int, struct sockaddr *, void *); 104void udp_init(void); 105void udp_input(struct mbuf *, int); 106struct inpcb *udp_notify(struct inpcb *inp, int errno); 107int udp_shutdown(struct socket *so); |
108#endif 109 110#endif
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