Annotation of sys/netinet/udp_var.h, Revision 1.1.1.1
1.1 nbrk 1: /* $OpenBSD: udp_var.h,v 1.16 2004/02/17 12:07:45 markus Exp $ */
2: /* $NetBSD: udp_var.h,v 1.12 1996/02/13 23:44:41 christos Exp $ */
3:
4: /*
5: * Copyright (c) 1982, 1986, 1989, 1993
6: * The Regents of the University of California. All rights reserved.
7: *
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 University nor the names of its contributors
17: * may be used to endorse or promote products derived from this software
18: * without specific prior written permission.
19: *
20: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30: * SUCH DAMAGE.
31: *
32: * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
33: */
34:
35: #ifndef _NETINET_UDP_VAR_H_
36: #define _NETINET_UDP_VAR_H_
37:
38: /*
39: * UDP kernel structures and variables.
40: */
41: struct udpiphdr {
42: struct ipovly ui_i; /* overlaid ip structure */
43: struct udphdr ui_u; /* udp header */
44: };
45: #define ui_x1 ui_i.ih_x1
46: #define ui_pr ui_i.ih_pr
47: #define ui_len ui_i.ih_len
48: #define ui_src ui_i.ih_src
49: #define ui_dst ui_i.ih_dst
50: #define ui_sport ui_u.uh_sport
51: #define ui_dport ui_u.uh_dport
52: #define ui_ulen ui_u.uh_ulen
53: #define ui_sum ui_u.uh_sum
54:
55: struct udpstat {
56: /* input statistics: */
57: u_long udps_ipackets; /* total input packets */
58: u_long udps_hdrops; /* packet shorter than header */
59: u_long udps_badsum; /* checksum error */
60: u_long udps_nosum; /* no checksum */
61: u_long udps_badlen; /* data length larger than packet */
62: u_long udps_noport; /* no socket on port */
63: u_long udps_noportbcast; /* of above, arrived as broadcast */
64: u_long udps_nosec; /* dropped for lack of ipsec */
65: u_long udps_fullsock; /* not delivered, input socket full */
66: u_long udps_pcbhashmiss; /* input packets missing pcb hash */
67: u_long udps_inhwcsum; /* input hardware-csummed packets */
68: /* output statistics: */
69: u_long udps_opackets; /* total output packets */
70: u_long udps_outhwcsum; /* output hardware-csummed packets */
71: };
72:
73: /*
74: * Names for UDP sysctl objects
75: */
76: #define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
77: #define UDPCTL_BADDYNAMIC 2 /* return bad dynamic port bitmap */
78: #define UDPCTL_RECVSPACE 3 /* receive buffer space */
79: #define UDPCTL_SENDSPACE 4 /* send buffer space */
80: #define UDPCTL_MAXID 5
81:
82: #define UDPCTL_NAMES { \
83: { 0, 0 }, \
84: { "checksum", CTLTYPE_INT }, \
85: { "baddynamic", CTLTYPE_STRUCT }, \
86: { "recvspace", CTLTYPE_INT }, \
87: { "sendspace", CTLTYPE_INT }, \
88: }
89:
90: #define UDPCTL_VARS { \
91: NULL, \
92: &udpcksum, \
93: NULL, \
94: &udp_recvspace, \
95: &udp_sendspace, \
96: }
97:
98: #ifdef _KERNEL
99: extern struct inpcbtable udbtable;
100: extern struct udpstat udpstat;
101:
102: #if defined(INET6) && !defined(TCP6)
103: void udp6_ctlinput(int, struct sockaddr *, void *);
104: int udp6_input(struct mbuf **, int *, int);
105: int udp6_usrreq(struct socket *,
106: int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *);
107: #endif /* INET6 && !TCP6 */
108: void *udp_ctlinput(int, struct sockaddr *, void *);
109: void udp_init(void);
110: void udp_input(struct mbuf *, ...);
111: #ifdef INET6
112: int udp6_output(struct inpcb *, struct mbuf *, struct mbuf *,
113: struct mbuf *);
114: #endif /* INET6 */
115: int udp_output(struct mbuf *, ...);
116: int udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
117: int udp_usrreq(struct socket *,
118: int, struct mbuf *, struct mbuf *, struct mbuf *);
119: #endif /* _KERNEL */
120: #endif /* _NETINET_UDP_VAR_H_ */
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