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
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9 * modification, are permitted provided that the following conditions
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12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
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15 * documentation and/or other materials provided with the distribution.
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17 * contributors may be used to endorse or promote products derived
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26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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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
35 * Copyright (c) 2003, 2004 Jeffrey M. Hsu. All rights reserved.
37 * License terms: all terms for the DragonFly license above plus the following:
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40 * must display the following acknowledgement:
42 * This product includes software developed by Jeffrey M. Hsu
43 * for the DragonFly Project.
45 * This requirement may be waived with permission from Jeffrey Hsu.
46 * This requirement will sunset and may be removed on July 8 2005,
47 * after which the standard DragonFly license (as shown above) will
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53 * The Regents of the University of California. All rights reserved.
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56 * modification, are permitted provided that the following conditions
58 * 1. Redistributions of source code must retain the above copyright
59 * notice, this list of conditions and the following disclaimer.
60 * 2. Redistributions in binary form must reproduce the above copyright
61 * notice, this list of conditions and the following disclaimer in the
62 * documentation and/or other materials provided with the distribution.
63 * 3. All advertising materials mentioning features or use of this software
64 * must display the following acknowledgement:
65 * This product includes software developed by the University of
66 * California, Berkeley and its contributors.
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68 * may be used to endorse or promote products derived from this software
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71 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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73 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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76 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
77 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
78 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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83 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
84 * $FreeBSD: src/sys/netinet/udp_var.h,v 1.22.2.1 2001/02/18 07:12:25 luigi Exp $
85 * $DragonFly: src/sys/netinet/udp_var.h,v 1.13 2004/12/21 02:54:15 hsu Exp $
88 #ifndef _NETINET_UDP_VAR_H_
89 #define _NETINET_UDP_VAR_H_
92 * UDP kernel structures and variables.
95 struct ipovly ui_i; /* overlaid ip structure */
96 struct udphdr ui_u; /* udp header */
98 #define ui_x1 ui_i.ih_x1
99 #define ui_pr ui_i.ih_pr
100 #define ui_len ui_i.ih_len
101 #define ui_src ui_i.ih_src
102 #define ui_dst ui_i.ih_dst
103 #define ui_sport ui_u.uh_sport
104 #define ui_dport ui_u.uh_dport
105 #define ui_ulen ui_u.uh_ulen
106 #define ui_sum ui_u.uh_sum
109 /* input statistics: */
110 u_long udps_ipackets; /* total input packets */
111 u_long udps_hdrops; /* packet shorter than header */
112 u_long udps_badsum; /* checksum error */
113 u_long udps_nosum; /* no checksum */
114 u_long udps_badlen; /* data length larger than packet */
115 u_long udps_noport; /* no socket on port */
116 u_long udps_noportbcast; /* of above, arrived as broadcast */
117 u_long udps_fullsock; /* not delivered, input socket full */
118 u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
119 u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
120 /* output statistics: */
121 u_long udps_opackets; /* total output packets */
122 u_long udps_fastout; /* output packets on fast path */
123 /* of no socket on port, arrived as multicast */
124 u_long udps_noportmcast;
128 * Names for UDP sysctl objects
130 #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
131 #define UDPCTL_STATS 2 /* statistics (read-only) */
132 #define UDPCTL_MAXDGRAM 3 /* max datagram size */
133 #define UDPCTL_RECVSPACE 4 /* default receive buffer space */
134 #define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
135 #define UDPCTL_MAXID 6
137 #define UDPCTL_NAMES { \
139 { "checksum", CTLTYPE_INT }, \
140 { "stats", CTLTYPE_STRUCT }, \
141 { "maxdgram", CTLTYPE_INT }, \
142 { "recvspace", CTLTYPE_INT }, \
143 { "pcblist", CTLTYPE_STRUCT }, \
148 SYSCTL_DECL(_net_inet_udp);
151 extern struct pr_usrreqs udp_usrreqs;
152 extern struct inpcbinfo udbinfo;
153 extern u_long udp_sendspace;
154 extern u_long udp_recvspace;
155 extern struct udpstat udpstat;
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 void udp_ctlinput (int, struct sockaddr *, void *);
161 void udp_init (void);
162 void udp_thread_init (void);
163 void udp_input (struct mbuf *, ...);
164 void udp_notify (struct inpcb *inp, int errno);
165 int udp_shutdown (struct socket *so);
166 struct lwkt_port *udp_soport (struct socket *, struct sockaddr *, int);