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[dragonfly.git] / sys / netinet / udp_var.h
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1 /*
2 * Copyright (c) 2003, 2004 Jeffrey M. Hsu. All rights reserved.
3 * Copyright (c) 2003, 2004 The DragonFly Project. All rights reserved.
5 * This code is derived from software contributed to The DragonFly Project
6 * by Jeffrey M. Hsu.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of The DragonFly Project nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific, prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
24 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
27 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
30 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
35 * Copyright (c) 1982, 1986, 1989, 1993
36 * The Regents of the University of California. All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
40 * are met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in the
45 * documentation and/or other materials provided with the distribution.
46 * 3. All advertising materials mentioning features or use of this software
47 * must display the following acknowledgement:
48 * This product includes software developed by the University of
49 * California, Berkeley and its contributors.
50 * 4. Neither the name of the University nor the names of its contributors
51 * may be used to endorse or promote products derived from this software
52 * without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
64 * SUCH DAMAGE.
66 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
67 * $FreeBSD: src/sys/netinet/udp_var.h,v 1.22.2.1 2001/02/18 07:12:25 luigi Exp $
68 * $DragonFly: src/sys/netinet/udp_var.h,v 1.17 2007/12/19 11:00:22 sephe Exp $
71 #ifndef _NETINET_UDP_VAR_H_
72 #define _NETINET_UDP_VAR_H_
74 #ifndef _NETINET_IP_VAR_H_
75 #include <netinet/ip_var.h>
76 #endif
77 #ifndef _NETINET_UDP_H_
78 #include <netinet/udp.h>
79 #endif
82 * UDP kernel structures and variables.
84 struct udpiphdr {
85 struct ipovly ui_i; /* overlaid ip structure */
86 struct udphdr ui_u; /* udp header */
88 #define ui_x1 ui_i.ih_x1
89 #define ui_pr ui_i.ih_pr
90 #define ui_len ui_i.ih_len
91 #define ui_src ui_i.ih_src
92 #define ui_dst ui_i.ih_dst
93 #define ui_sport ui_u.uh_sport
94 #define ui_dport ui_u.uh_dport
95 #define ui_ulen ui_u.uh_ulen
96 #define ui_sum ui_u.uh_sum
98 struct udpstat {
99 /* input statistics: */
100 u_long udps_ipackets; /* total input packets */
101 u_long udps_hdrops; /* packet shorter than header */
102 u_long udps_badsum; /* checksum error */
103 u_long udps_nosum; /* no checksum */
104 u_long udps_badlen; /* data length larger than packet */
105 u_long udps_noport; /* no socket on port */
106 u_long udps_noportbcast; /* of above, arrived as broadcast */
107 u_long udps_fullsock; /* not delivered, input socket full */
108 u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
109 u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
110 /* output statistics: */
111 u_long udps_opackets; /* total output packets */
112 u_long udps_fastout; /* output packets on fast path */
113 /* of no socket on port, arrived as multicast */
114 u_long udps_noportmcast;
118 * Names for UDP sysctl objects
120 #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
121 #define UDPCTL_STATS 2 /* statistics (read-only) */
122 #define UDPCTL_MAXDGRAM 3 /* max datagram size */
123 #define UDPCTL_RECVSPACE 4 /* default receive buffer space */
124 #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
125 #define UDPCTL_MAXID 6
127 #define UDPCTL_NAMES { \
128 { 0, 0 }, \
129 { "checksum", CTLTYPE_INT }, \
130 { "stats", CTLTYPE_STRUCT }, \
131 { "maxdgram", CTLTYPE_INT }, \
132 { "recvspace", CTLTYPE_INT }, \
133 { "pcblist", CTLTYPE_STRUCT }, \
136 #ifdef _KERNEL
137 #ifdef SYSCTL_DECL
138 SYSCTL_DECL(_net_inet_udp);
139 #endif
141 extern struct pr_usrreqs udp_usrreqs;
142 extern struct inpcbinfo udbinfo;
143 extern u_long udp_sendspace;
144 extern u_long udp_recvspace;
145 extern struct udpstat udpstat;
146 extern int log_in_vain;
148 int udp_addrcpu (in_addr_t faddr, in_port_t fport,
149 in_addr_t laddr, in_port_t lport);
150 void udp_ctlinput (int, struct sockaddr *, void *);
151 void udp_init (void);
152 void udp_thread_init (void);
153 void udp_input (struct mbuf *, ...);
154 void udp_notify (struct inpcb *inp, int error);
155 int udp_shutdown (struct socket *so);
156 struct lwkt_port *udp_soport (struct socket *, struct sockaddr *,
157 struct mbuf **, int);
159 #endif
161 #endif