1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
/* $OpenBSD: udp_var.h,v 1.16 2004/02/17 12:07:45 markus Exp $ */
/* $NetBSD: udp_var.h,v 1.12 1996/02/13 23:44:41 christos Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)udp_var.h 8.1 (Berkeley) 6/10/93
*/
#ifndef _NETINET_UDP_VAR_H_
#define _NETINET_UDP_VAR_H_
/*
* UDP kernel structures and variables.
*/
struct udpiphdr {
struct ipovly ui_i; /* overlaid ip structure */
struct udphdr ui_u; /* udp header */
};
#define ui_x1 ui_i.ih_x1
#define ui_pr ui_i.ih_pr
#define ui_len ui_i.ih_len
#define ui_src ui_i.ih_src
#define ui_dst ui_i.ih_dst
#define ui_sport ui_u.uh_sport
#define ui_dport ui_u.uh_dport
#define ui_ulen ui_u.uh_ulen
#define ui_sum ui_u.uh_sum
struct udpstat {
/* input statistics: */
u_long udps_ipackets; /* total input packets */
u_long udps_hdrops; /* packet shorter than header */
u_long udps_badsum; /* checksum error */
u_long udps_nosum; /* no checksum */
u_long udps_badlen; /* data length larger than packet */
u_long udps_noport; /* no socket on port */
u_long udps_noportbcast; /* of above, arrived as broadcast */
u_long udps_nosec; /* dropped for lack of ipsec */
u_long udps_fullsock; /* not delivered, input socket full */
u_long udps_pcbhashmiss; /* input packets missing pcb hash */
u_long udps_inhwcsum; /* input hardware-csummed packets */
/* output statistics: */
u_long udps_opackets; /* total output packets */
u_long udps_outhwcsum; /* output hardware-csummed packets */
};
/*
* Names for UDP sysctl objects
*/
#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
#define UDPCTL_BADDYNAMIC 2 /* return bad dynamic port bitmap */
#define UDPCTL_RECVSPACE 3 /* receive buffer space */
#define UDPCTL_SENDSPACE 4 /* send buffer space */
#define UDPCTL_MAXID 5
#define UDPCTL_NAMES { \
{ 0, 0 }, \
{ "checksum", CTLTYPE_INT }, \
{ "baddynamic", CTLTYPE_STRUCT }, \
{ "recvspace", CTLTYPE_INT }, \
{ "sendspace", CTLTYPE_INT }, \
}
#define UDPCTL_VARS { \
NULL, \
&udpcksum, \
NULL, \
&udp_recvspace, \
&udp_sendspace, \
}
#ifdef _KERNEL
extern struct inpcbtable udbtable;
extern struct udpstat udpstat;
#if defined(INET6) && !defined(TCP6)
void udp6_ctlinput(int, struct sockaddr *, void *);
int udp6_input(struct mbuf **, int *, int);
int udp6_usrreq(struct socket *,
int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *);
#endif /* INET6 && !TCP6 */
void *udp_ctlinput(int, struct sockaddr *, void *);
void udp_init(void);
void udp_input(struct mbuf *, ...);
#ifdef INET6
int udp6_output(struct inpcb *, struct mbuf *, struct mbuf *,
struct mbuf *);
#endif /* INET6 */
int udp_output(struct mbuf *, ...);
int udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
int udp_usrreq(struct socket *,
int, struct mbuf *, struct mbuf *, struct mbuf *);
#endif /* _KERNEL */
#endif /* _NETINET_UDP_VAR_H_ */
|
