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
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
/* $OpenBSD: udp_var.h,v 1.31 2017/01/29 19:58:47 bluhm 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_inswcsum; /* input software-csummed packets */
/* output statistics: */
u_long udps_opackets; /* total output packets */
u_long udps_outswcsum; /* output software-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_STATS 5 /* UDP statistics */
#define UDPCTL_ROOTONLY 6 /* root only port bitmap */
#define UDPCTL_MAXID 7
#define UDPCTL_NAMES { \
{ 0, 0 }, \
{ "checksum", CTLTYPE_INT }, \
{ "baddynamic", CTLTYPE_STRUCT }, \
{ "recvspace", CTLTYPE_INT }, \
{ "sendspace", CTLTYPE_INT }, \
{ "stats", CTLTYPE_STRUCT }, \
{ "rootonly", CTLTYPE_STRUCT }, \
}
#define UDPCTL_VARS { \
NULL, \
&udpcksum, \
NULL, \
&udp_recvspace, \
&udp_sendspace, \
NULL, \
NULL \
}
#ifdef _KERNEL
#include <sys/percpu.h>
enum udpstat_counters {
/* input statistics: */
udps_ipackets, /* total input packets */
udps_hdrops, /* packet shorter than header */
udps_badsum, /* checksum error */
udps_nosum, /* no checksum */
udps_badlen, /* data length larger than packet */
udps_noport, /* no socket on port */
udps_noportbcast, /* of above, arrived as broadcast */
udps_nosec, /* dropped for lack of ipsec */
udps_fullsock, /* not delivered, input socket full */
udps_pcbhashmiss, /* input packets missing pcb hash */
udps_inswcsum, /* input software-csummed packets */
/* output statistics: */
udps_opackets, /* total output packets */
udps_outswcsum, /* output software-csummed packets */
udps_ncounters
};
extern struct cpumem *udpcounters;
static inline void
udpstat_inc(enum udpstat_counters c)
{
counters_inc(udpcounters, c);
}
extern struct inpcbtable udbtable;
extern struct udpstat udpstat;
#ifdef INET6
void udp6_ctlinput(int, struct sockaddr *, u_int, void *);
#endif /* INET6 */
void udp_ctlinput(int, struct sockaddr *, u_int, void *);
void udp_init(void);
int udp_input(struct mbuf **, int *, int);
#ifdef INET6
int udp6_output(struct inpcb *, struct mbuf *, struct mbuf *,
struct mbuf *);
#endif /* INET6 */
int udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
int udp_usrreq(struct socket *,
int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *);
#endif /* _KERNEL */
#endif /* _NETINET_UDP_VAR_H_ */
|
