1/*-
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 4. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
| 1/*-
2 * Copyright (c) 1982, 1986, 1989, 1993
3 * The Regents of the University of California.
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 4. Neither the name of the University nor the names of its contributors
15 * may be used to endorse or promote products derived from this software
16 * without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * @(#)udp_var.h 8.1 (Berkeley) 6/10/93
|
31 * $FreeBSD: head/sys/netinet/udp_var.h 233554 2012-03-27 15:14:29Z bz $
| 31 * $FreeBSD: head/sys/netinet/udp_var.h 253081 2013-07-09 09:32:06Z ae $
|
32 */
33
34#ifndef _NETINET_UDP_VAR_H_
35#define _NETINET_UDP_VAR_H_
36
37/*
38 * UDP kernel structures and variables.
39 */
40struct udpiphdr {
41 struct ipovly ui_i; /* overlaid ip structure */
42 struct udphdr ui_u; /* udp header */
43};
44#define ui_x1 ui_i.ih_x1
45#define ui_pr ui_i.ih_pr
46#define ui_len ui_i.ih_len
47#define ui_src ui_i.ih_src
48#define ui_dst ui_i.ih_dst
49#define ui_sport ui_u.uh_sport
50#define ui_dport ui_u.uh_dport
51#define ui_ulen ui_u.uh_ulen
52#define ui_sum ui_u.uh_sum
53
54struct inpcb;
55struct mbuf;
56
57typedef void(*udp_tun_func_t)(struct mbuf *, int off, struct inpcb *);
58
59/*
60 * UDP control block; one per udp.
61 */
62struct udpcb {
63 udp_tun_func_t u_tun_func; /* UDP kernel tunneling callback. */
64 u_int u_flags; /* Generic UDP flags. */
65};
66
67#define intoudpcb(ip) ((struct udpcb *)(ip)->inp_ppcb)
68#define sotoudpcb(so) (intoudpcb(sotoinpcb(so)))
69
70 /* IPsec: ESP in UDP tunneling: */
71#define UF_ESPINUDP_NON_IKE 0x00000001 /* w/ non-IKE marker .. */
72 /* .. per draft-ietf-ipsec-nat-t-ike-0[01],
73 * and draft-ietf-ipsec-udp-encaps-(00/)01.txt */
74#define UF_ESPINUDP 0x00000002 /* w/ non-ESP marker. */
75
76struct udpstat {
77 /* input statistics: */
| 32 */
33
34#ifndef _NETINET_UDP_VAR_H_
35#define _NETINET_UDP_VAR_H_
36
37/*
38 * UDP kernel structures and variables.
39 */
40struct udpiphdr {
41 struct ipovly ui_i; /* overlaid ip structure */
42 struct udphdr ui_u; /* udp header */
43};
44#define ui_x1 ui_i.ih_x1
45#define ui_pr ui_i.ih_pr
46#define ui_len ui_i.ih_len
47#define ui_src ui_i.ih_src
48#define ui_dst ui_i.ih_dst
49#define ui_sport ui_u.uh_sport
50#define ui_dport ui_u.uh_dport
51#define ui_ulen ui_u.uh_ulen
52#define ui_sum ui_u.uh_sum
53
54struct inpcb;
55struct mbuf;
56
57typedef void(*udp_tun_func_t)(struct mbuf *, int off, struct inpcb *);
58
59/*
60 * UDP control block; one per udp.
61 */
62struct udpcb {
63 udp_tun_func_t u_tun_func; /* UDP kernel tunneling callback. */
64 u_int u_flags; /* Generic UDP flags. */
65};
66
67#define intoudpcb(ip) ((struct udpcb *)(ip)->inp_ppcb)
68#define sotoudpcb(so) (intoudpcb(sotoinpcb(so)))
69
70 /* IPsec: ESP in UDP tunneling: */
71#define UF_ESPINUDP_NON_IKE 0x00000001 /* w/ non-IKE marker .. */
72 /* .. per draft-ietf-ipsec-nat-t-ike-0[01],
73 * and draft-ietf-ipsec-udp-encaps-(00/)01.txt */
74#define UF_ESPINUDP 0x00000002 /* w/ non-ESP marker. */
75
76struct udpstat {
77 /* input statistics: */
|
78 u_long udps_ipackets; /* total input packets */
79 u_long udps_hdrops; /* packet shorter than header */
80 u_long udps_badsum; /* checksum error */
81 u_long udps_nosum; /* no checksum */
82 u_long udps_badlen; /* data length larger than packet */
83 u_long udps_noport; /* no socket on port */
84 u_long udps_noportbcast; /* of above, arrived as broadcast */
85 u_long udps_fullsock; /* not delivered, input socket full */
86 u_long udpps_pcbcachemiss; /* input packets missing pcb cache */
87 u_long udpps_pcbhashmiss; /* input packets not for hashed pcb */
| 78 uint64_t udps_ipackets; /* total input packets */
79 uint64_t udps_hdrops; /* packet shorter than header */
80 uint64_t udps_badsum; /* checksum error */
81 uint64_t udps_nosum; /* no checksum */
82 uint64_t udps_badlen; /* data length larger than packet */
83 uint64_t udps_noport; /* no socket on port */
84 uint64_t udps_noportbcast; /* of above, arrived as broadcast */
85 uint64_t udps_fullsock; /* not delivered, input socket full */
86 uint64_t udpps_pcbcachemiss; /* input packets missing pcb cache */
87 uint64_t udpps_pcbhashmiss; /* input packets not for hashed pcb */
|
88 /* output statistics: */
| 88 /* output statistics: */
|
89 u_long udps_opackets; /* total output packets */
90 u_long udps_fastout; /* output packets on fast path */
| 89 uint64_t udps_opackets; /* total output packets */
90 uint64_t udps_fastout; /* output packets on fast path */
|
91 /* of no socket on port, arrived as multicast */
| 91 /* of no socket on port, arrived as multicast */
|
92 u_long udps_noportmcast;
93 u_long udps_filtermcast; /* blocked by multicast filter */
| 92 uint64_t udps_noportmcast;
93 uint64_t udps_filtermcast; /* blocked by multicast filter */
|
94};
95
96#ifdef _KERNEL
97/*
98 * In-kernel consumers can use these accessor macros directly to update
99 * stats.
100 */
101#define UDPSTAT_ADD(name, val) V_udpstat.name += (val)
102#define UDPSTAT_INC(name) UDPSTAT_ADD(name, 1)
103
104/*
105 * Kernel module consumers must use this accessor macro.
106 */
107void kmod_udpstat_inc(int statnum);
108#define KMOD_UDPSTAT_INC(name) \
109 kmod_udpstat_inc(offsetof(struct udpstat, name) / sizeof(u_long))
110#endif
111
112/*
113 * Names for UDP sysctl objects.
114 */
115#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
116#define UDPCTL_STATS 2 /* statistics (read-only) */
117#define UDPCTL_MAXDGRAM 3 /* max datagram size */
118#define UDPCTL_RECVSPACE 4 /* default receive buffer space */
119#define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
120#define UDPCTL_MAXID 6
121
122#define UDPCTL_NAMES { \
123 { 0, 0 }, \
124 { "checksum", CTLTYPE_INT }, \
125 { "stats", CTLTYPE_STRUCT }, \
126 { "maxdgram", CTLTYPE_INT }, \
127 { "recvspace", CTLTYPE_INT }, \
128 { "pcblist", CTLTYPE_STRUCT }, \
129}
130
131#ifdef _KERNEL
132SYSCTL_DECL(_net_inet_udp);
133
134extern struct pr_usrreqs udp_usrreqs;
135VNET_DECLARE(struct inpcbhead, udb);
136VNET_DECLARE(struct inpcbinfo, udbinfo);
137#define V_udb VNET(udb)
138#define V_udbinfo VNET(udbinfo)
139
140extern u_long udp_sendspace;
141extern u_long udp_recvspace;
142VNET_DECLARE(int, udp_cksum);
143VNET_DECLARE(struct udpstat, udpstat);
144VNET_DECLARE(int, udp_blackhole);
145#define V_udp_cksum VNET(udp_cksum)
146#define V_udpstat VNET(udpstat)
147#define V_udp_blackhole VNET(udp_blackhole)
148extern int udp_log_in_vain;
149
150int udp_newudpcb(struct inpcb *);
151void udp_discardcb(struct udpcb *);
152
153void udp_ctlinput(int, struct sockaddr *, void *);
154int udp_ctloutput(struct socket *, struct sockopt *);
155void udp_init(void);
156#ifdef VIMAGE
157void udp_destroy(void);
158#endif
159void udp_input(struct mbuf *, int);
160struct inpcb *udp_notify(struct inpcb *inp, int errno);
161int udp_shutdown(struct socket *so);
162
163int udp_set_kernel_tunneling(struct socket *so, udp_tun_func_t f);
164#endif
165
166#endif
| 94};
95
96#ifdef _KERNEL
97/*
98 * In-kernel consumers can use these accessor macros directly to update
99 * stats.
100 */
101#define UDPSTAT_ADD(name, val) V_udpstat.name += (val)
102#define UDPSTAT_INC(name) UDPSTAT_ADD(name, 1)
103
104/*
105 * Kernel module consumers must use this accessor macro.
106 */
107void kmod_udpstat_inc(int statnum);
108#define KMOD_UDPSTAT_INC(name) \
109 kmod_udpstat_inc(offsetof(struct udpstat, name) / sizeof(u_long))
110#endif
111
112/*
113 * Names for UDP sysctl objects.
114 */
115#define UDPCTL_CHECKSUM 1 /* checksum UDP packets */
116#define UDPCTL_STATS 2 /* statistics (read-only) */
117#define UDPCTL_MAXDGRAM 3 /* max datagram size */
118#define UDPCTL_RECVSPACE 4 /* default receive buffer space */
119#define UDPCTL_PCBLIST 5 /* list of PCBs for UDP sockets */
120#define UDPCTL_MAXID 6
121
122#define UDPCTL_NAMES { \
123 { 0, 0 }, \
124 { "checksum", CTLTYPE_INT }, \
125 { "stats", CTLTYPE_STRUCT }, \
126 { "maxdgram", CTLTYPE_INT }, \
127 { "recvspace", CTLTYPE_INT }, \
128 { "pcblist", CTLTYPE_STRUCT }, \
129}
130
131#ifdef _KERNEL
132SYSCTL_DECL(_net_inet_udp);
133
134extern struct pr_usrreqs udp_usrreqs;
135VNET_DECLARE(struct inpcbhead, udb);
136VNET_DECLARE(struct inpcbinfo, udbinfo);
137#define V_udb VNET(udb)
138#define V_udbinfo VNET(udbinfo)
139
140extern u_long udp_sendspace;
141extern u_long udp_recvspace;
142VNET_DECLARE(int, udp_cksum);
143VNET_DECLARE(struct udpstat, udpstat);
144VNET_DECLARE(int, udp_blackhole);
145#define V_udp_cksum VNET(udp_cksum)
146#define V_udpstat VNET(udpstat)
147#define V_udp_blackhole VNET(udp_blackhole)
148extern int udp_log_in_vain;
149
150int udp_newudpcb(struct inpcb *);
151void udp_discardcb(struct udpcb *);
152
153void udp_ctlinput(int, struct sockaddr *, void *);
154int udp_ctloutput(struct socket *, struct sockopt *);
155void udp_init(void);
156#ifdef VIMAGE
157void udp_destroy(void);
158#endif
159void udp_input(struct mbuf *, int);
160struct inpcb *udp_notify(struct inpcb *inp, int errno);
161int udp_shutdown(struct socket *so);
162
163int udp_set_kernel_tunneling(struct socket *so, udp_tun_func_t f);
164#endif
165
166#endif
|