Line data Source code
1 : /* $OpenBSD: udp_var.h,v 1.34 2017/11/02 14:01:18 florian 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_inswcsum; /* input software-csummed packets */
68 : /* output statistics: */
69 : u_long udps_opackets; /* total output packets */
70 : u_long udps_outswcsum; /* output software-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_STATS 5 /* UDP statistics */
81 : #define UDPCTL_ROOTONLY 6 /* root only port bitmap */
82 : #define UDPCTL_MAXID 7
83 :
84 : #define UDPCTL_NAMES { \
85 : { 0, 0 }, \
86 : { "checksum", CTLTYPE_INT }, \
87 : { "baddynamic", CTLTYPE_STRUCT }, \
88 : { "recvspace", CTLTYPE_INT }, \
89 : { "sendspace", CTLTYPE_INT }, \
90 : { "stats", CTLTYPE_STRUCT }, \
91 : { "rootonly", CTLTYPE_STRUCT }, \
92 : }
93 :
94 : #define UDPCTL_VARS { \
95 : NULL, \
96 : &udpcksum, \
97 : NULL, \
98 : &udp_recvspace, \
99 : &udp_sendspace, \
100 : NULL, \
101 : NULL \
102 : }
103 :
104 : #ifdef _KERNEL
105 :
106 : #include <sys/percpu.h>
107 :
108 : enum udpstat_counters {
109 : /* input statistics: */
110 : udps_ipackets, /* total input packets */
111 : udps_hdrops, /* packet shorter than header */
112 : udps_badsum, /* checksum error */
113 : udps_nosum, /* no checksum */
114 : udps_badlen, /* data length larger than packet */
115 : udps_noport, /* no socket on port */
116 : udps_noportbcast, /* of above, arrived as broadcast */
117 : udps_nosec, /* dropped for lack of ipsec */
118 : udps_fullsock, /* not delivered, input socket full */
119 : udps_pcbhashmiss, /* input packets missing pcb hash */
120 : udps_inswcsum, /* input software-csummed packets */
121 : /* output statistics: */
122 : udps_opackets, /* total output packets */
123 : udps_outswcsum, /* output software-csummed packets */
124 :
125 : udps_ncounters
126 : };
127 :
128 : extern struct cpumem *udpcounters;
129 :
130 : static inline void
131 0 : udpstat_inc(enum udpstat_counters c)
132 : {
133 0 : counters_inc(udpcounters, c);
134 0 : }
135 :
136 : extern struct inpcbtable udbtable;
137 : extern struct udpstat udpstat;
138 :
139 : #ifdef INET6
140 : void udp6_ctlinput(int, struct sockaddr *, u_int, void *);
141 : #endif /* INET6 */
142 : void udp_ctlinput(int, struct sockaddr *, u_int, void *);
143 : void udp_init(void);
144 : int udp_input(struct mbuf **, int *, int, int);
145 : #ifdef INET6
146 : int udp6_output(struct inpcb *, struct mbuf *, struct mbuf *,
147 : struct mbuf *);
148 : #endif /* INET6 */
149 : int udp_sysctl(int *, u_int, void *, size_t *, void *, size_t);
150 : int udp_usrreq(struct socket *,
151 : int, struct mbuf *, struct mbuf *, struct mbuf *, struct proc *);
152 : int udp_attach(struct socket *, int);
153 : int udp_detach(struct socket *);
154 : #endif /* _KERNEL */
155 : #endif /* _NETINET_UDP_VAR_H_ */
|
