drm/linux: Port kfifo.h to DragonFly
[dragonfly.git] / sys / netinet / udp_var.h
blobe09cc18589d444f187b48eaaa52ed57f9836b3fd
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. Neither the name of the University nor the names of its contributors
47 * may be used to endorse or promote products derived from this software
48 * without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
51 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
54 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
55 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
56 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
57 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
58 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
59 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
60 * SUCH DAMAGE.
62 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
63 * $FreeBSD: src/sys/netinet/udp_var.h,v 1.22.2.1 2001/02/18 07:12:25 luigi Exp $
64 * $DragonFly: src/sys/netinet/udp_var.h,v 1.19 2008/11/11 10:46:58 sephe Exp $
67 #ifndef _NETINET_UDP_VAR_H_
68 #define _NETINET_UDP_VAR_H_
70 #ifndef _NETINET_IP_VAR_H_
71 #include <netinet/ip_var.h>
72 #endif
73 #ifndef _NETINET_UDP_H_
74 #include <netinet/udp.h>
75 #endif
78 * UDP kernel structures and variables.
80 struct udpiphdr {
81 struct ipovly ui_i; /* overlaid ip structure */
82 struct udphdr ui_u; /* udp header */
84 #define ui_x1 ui_i.ih_x1
85 #define ui_pr ui_i.ih_pr
86 #define ui_len ui_i.ih_len
87 #define ui_src ui_i.ih_src
88 #define ui_dst ui_i.ih_dst
89 #define ui_sport ui_u.uh_sport
90 #define ui_dport ui_u.uh_dport
91 #define ui_ulen ui_u.uh_ulen
92 #define ui_sum ui_u.uh_sum
95 * UDP Statistics.
97 * NOTE: Make sure this struct's size is multiple cache line size.
99 struct udpstat {
100 /* input statistics: */
101 u_long udps_ipackets; /* total input packets */
102 u_long udps_hdrops; /* packet shorter than header */
103 u_long udps_badsum; /* checksum error */
104 u_long udps_nosum; /* no checksum */
105 u_long udps_badlen; /* data length larger than packet */
106 u_long udps_noport; /* no socket on port */
107 u_long udps_noportbcast; /* of above, arrived as broadcast */
108 u_long udps_fullsock; /* not delivered, input socket full */
109 u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
110 u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
111 /* output statistics: */
112 u_long udps_opackets; /* total output packets */
113 u_long udps_fastout; /* output packets on fast path */
114 /* of no socket on port, arrived as multicast */
115 u_long udps_noportmcast;
116 u_long udps_pad[3]; /* pad to cache line size (64B) */
118 #ifdef _KERNEL
119 CTASSERT((sizeof(struct udpstat) & __VM_CACHELINE_MASK) == 0);
120 #endif
123 * Names for UDP sysctl objects
125 #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
126 #define UDPCTL_STATS 2 /* statistics (read-only) */
127 #define UDPCTL_MAXDGRAM 3 /* max datagram size */
128 #define UDPCTL_RECVSPACE 4 /* default receive buffer space */
129 #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
130 #define UDPCTL_MAXID 6
132 #define UDPCTL_NAMES { \
133 { 0, 0 }, \
134 { "checksum", CTLTYPE_INT }, \
135 { "stats", CTLTYPE_STRUCT }, \
136 { "maxdgram", CTLTYPE_INT }, \
137 { "recvspace", CTLTYPE_INT }, \
138 { "pcblist", CTLTYPE_STRUCT }, \
141 #ifdef _KERNEL
143 #define INP_WASBOUND_NOTANY INP_FLAG_PROTO1 /* bound to non-null laddr */
145 #ifdef SYSCTL_DECL
146 SYSCTL_DECL(_net_inet_udp);
147 #endif
149 #define udp_stat udpstat_percpu[mycpuid]
151 extern struct pr_usrreqs udp_usrreqs;
152 extern struct inpcbinfo udbinfo[MAXCPU];
153 extern u_long udp_sendspace;
154 extern u_long udp_recvspace;
155 extern struct udpstat udpstat_percpu[MAXCPU];
156 extern int log_in_vain;
158 int udp_addrcpu (in_addr_t faddr, in_port_t fport,
159 in_addr_t laddr, in_port_t lport);
160 int udp_addrhash (in_addr_t faddr, in_port_t fport,
161 in_addr_t laddr, in_port_t lport);
162 struct lwkt_port *udp_addrport (in_addr_t faddr, in_port_t fport,
163 in_addr_t laddr, in_port_t lport);
164 void udp_ctlinput(netmsg_t msg);
165 void udp_ctloutput(netmsg_t msg);
166 void udp_init (void);
167 void udp_thread_init (void);
168 int udp_input (struct mbuf **, int *, int);
169 void udp_notify (struct inpcb *inp, int error);
170 void udp_shutdown (union netmsg *);
171 struct lwkt_port *udp_ctlport (int, struct sockaddr *, void *, int *);
172 struct lwkt_port *udp_initport(void);
173 inp_notify_t udp_get_inpnotify(int, const struct sockaddr *,
174 struct ip **, int *);
176 #endif /* _KERNEL */
178 #endif