1/*-
2 * Copyright (c) 1986, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)if_arp.h 8.1 (Berkeley) 6/10/93
| 1/*-
2 * Copyright (c) 1986, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)if_arp.h 8.1 (Berkeley) 6/10/93
|
30 * $FreeBSD: head/sys/net/if_arp.h 219819 2011-03-21 09:40:01Z jeff $
| 30 * $FreeBSD: head/sys/net/if_arp.h 253081 2013-07-09 09:32:06Z ae $
|
31 */
32
33#ifndef _NET_IF_ARP_H_
34#define _NET_IF_ARP_H_
35
36/*
37 * Address Resolution Protocol.
38 *
39 * See RFC 826 for protocol description. ARP packets are variable
40 * in size; the arphdr structure defines the fixed-length portion.
41 * Protocol type values are the same as those for 10 Mb/s Ethernet.
42 * It is followed by the variable-sized fields ar_sha, arp_spa,
43 * arp_tha and arp_tpa in that order, according to the lengths
44 * specified. Field names used correspond to RFC 826.
45 */
46struct arphdr {
47 u_short ar_hrd; /* format of hardware address */
48#define ARPHRD_ETHER 1 /* ethernet hardware format */
49#define ARPHRD_IEEE802 6 /* token-ring hardware format */
50#define ARPHRD_ARCNET 7 /* arcnet hardware format */
51#define ARPHRD_FRELAY 15 /* frame relay hardware format */
52#define ARPHRD_IEEE1394 24 /* firewire hardware format */
53#define ARPHRD_INFINIBAND 32 /* infiniband hardware format */
54 u_short ar_pro; /* format of protocol address */
55 u_char ar_hln; /* length of hardware address */
56 u_char ar_pln; /* length of protocol address */
57 u_short ar_op; /* one of: */
58#define ARPOP_REQUEST 1 /* request to resolve address */
59#define ARPOP_REPLY 2 /* response to previous request */
60#define ARPOP_REVREQUEST 3 /* request protocol address given hardware */
61#define ARPOP_REVREPLY 4 /* response giving protocol address */
62#define ARPOP_INVREQUEST 8 /* request to identify peer */
63#define ARPOP_INVREPLY 9 /* response identifying peer */
64/*
65 * The remaining fields are variable in size,
66 * according to the sizes above.
67 */
68#ifdef COMMENT_ONLY
69 u_char ar_sha[]; /* sender hardware address */
70 u_char ar_spa[]; /* sender protocol address */
71 u_char ar_tha[]; /* target hardware address */
72 u_char ar_tpa[]; /* target protocol address */
73#endif
74};
75
76#define ar_sha(ap) (((caddr_t)((ap)+1)) + 0)
77#define ar_spa(ap) (((caddr_t)((ap)+1)) + (ap)->ar_hln)
78#define ar_tha(ap) (((caddr_t)((ap)+1)) + (ap)->ar_hln + (ap)->ar_pln)
79#define ar_tpa(ap) (((caddr_t)((ap)+1)) + 2*(ap)->ar_hln + (ap)->ar_pln)
80
81#define arphdr_len2(ar_hln, ar_pln) \
82 (sizeof(struct arphdr) + 2*(ar_hln) + 2*(ar_pln))
83#define arphdr_len(ap) (arphdr_len2((ap)->ar_hln, (ap)->ar_pln))
84
85/*
86 * ARP ioctl request
87 */
88struct arpreq {
89 struct sockaddr arp_pa; /* protocol address */
90 struct sockaddr arp_ha; /* hardware address */
91 int arp_flags; /* flags */
92};
93/* arp_flags and at_flags field values */
94#define ATF_INUSE 0x01 /* entry in use */
95#define ATF_COM 0x02 /* completed entry (enaddr valid) */
96#define ATF_PERM 0x04 /* permanent entry */
97#define ATF_PUBL 0x08 /* publish entry (respond for other host) */
98#define ATF_USETRAILERS 0x10 /* has requested trailers */
99
100#ifdef _KERNEL
101/*
102 * Structure shared between the ethernet driver modules and
103 * the address resolution code.
104 */
105struct arpcom {
106 struct ifnet *ac_ifp; /* network-visible interface */
107 void *ac_netgraph; /* ng_ether(4) netgraph node info */
108};
109#define IFP2AC(ifp) ((struct arpcom *)(ifp->if_l2com))
110#define AC2IFP(ac) ((ac)->ac_ifp)
111
112#endif /* _KERNEL */
113
114struct arpstat {
115 /* Normal things that happen: */
| 31 */
32
33#ifndef _NET_IF_ARP_H_
34#define _NET_IF_ARP_H_
35
36/*
37 * Address Resolution Protocol.
38 *
39 * See RFC 826 for protocol description. ARP packets are variable
40 * in size; the arphdr structure defines the fixed-length portion.
41 * Protocol type values are the same as those for 10 Mb/s Ethernet.
42 * It is followed by the variable-sized fields ar_sha, arp_spa,
43 * arp_tha and arp_tpa in that order, according to the lengths
44 * specified. Field names used correspond to RFC 826.
45 */
46struct arphdr {
47 u_short ar_hrd; /* format of hardware address */
48#define ARPHRD_ETHER 1 /* ethernet hardware format */
49#define ARPHRD_IEEE802 6 /* token-ring hardware format */
50#define ARPHRD_ARCNET 7 /* arcnet hardware format */
51#define ARPHRD_FRELAY 15 /* frame relay hardware format */
52#define ARPHRD_IEEE1394 24 /* firewire hardware format */
53#define ARPHRD_INFINIBAND 32 /* infiniband hardware format */
54 u_short ar_pro; /* format of protocol address */
55 u_char ar_hln; /* length of hardware address */
56 u_char ar_pln; /* length of protocol address */
57 u_short ar_op; /* one of: */
58#define ARPOP_REQUEST 1 /* request to resolve address */
59#define ARPOP_REPLY 2 /* response to previous request */
60#define ARPOP_REVREQUEST 3 /* request protocol address given hardware */
61#define ARPOP_REVREPLY 4 /* response giving protocol address */
62#define ARPOP_INVREQUEST 8 /* request to identify peer */
63#define ARPOP_INVREPLY 9 /* response identifying peer */
64/*
65 * The remaining fields are variable in size,
66 * according to the sizes above.
67 */
68#ifdef COMMENT_ONLY
69 u_char ar_sha[]; /* sender hardware address */
70 u_char ar_spa[]; /* sender protocol address */
71 u_char ar_tha[]; /* target hardware address */
72 u_char ar_tpa[]; /* target protocol address */
73#endif
74};
75
76#define ar_sha(ap) (((caddr_t)((ap)+1)) + 0)
77#define ar_spa(ap) (((caddr_t)((ap)+1)) + (ap)->ar_hln)
78#define ar_tha(ap) (((caddr_t)((ap)+1)) + (ap)->ar_hln + (ap)->ar_pln)
79#define ar_tpa(ap) (((caddr_t)((ap)+1)) + 2*(ap)->ar_hln + (ap)->ar_pln)
80
81#define arphdr_len2(ar_hln, ar_pln) \
82 (sizeof(struct arphdr) + 2*(ar_hln) + 2*(ar_pln))
83#define arphdr_len(ap) (arphdr_len2((ap)->ar_hln, (ap)->ar_pln))
84
85/*
86 * ARP ioctl request
87 */
88struct arpreq {
89 struct sockaddr arp_pa; /* protocol address */
90 struct sockaddr arp_ha; /* hardware address */
91 int arp_flags; /* flags */
92};
93/* arp_flags and at_flags field values */
94#define ATF_INUSE 0x01 /* entry in use */
95#define ATF_COM 0x02 /* completed entry (enaddr valid) */
96#define ATF_PERM 0x04 /* permanent entry */
97#define ATF_PUBL 0x08 /* publish entry (respond for other host) */
98#define ATF_USETRAILERS 0x10 /* has requested trailers */
99
100#ifdef _KERNEL
101/*
102 * Structure shared between the ethernet driver modules and
103 * the address resolution code.
104 */
105struct arpcom {
106 struct ifnet *ac_ifp; /* network-visible interface */
107 void *ac_netgraph; /* ng_ether(4) netgraph node info */
108};
109#define IFP2AC(ifp) ((struct arpcom *)(ifp->if_l2com))
110#define AC2IFP(ac) ((ac)->ac_ifp)
111
112#endif /* _KERNEL */
113
114struct arpstat {
115 /* Normal things that happen: */
|
116 u_long txrequests; /* # of ARP requests sent by this host. */
117 u_long txreplies; /* # of ARP replies sent by this host. */
118 u_long rxrequests; /* # of ARP requests received by this host. */
119 u_long rxreplies; /* # of ARP replies received by this host. */
120 u_long received; /* # of ARP packets received by this host. */
| 116 uint64_t txrequests; /* # of ARP requests sent by this host. */
117 uint64_t txreplies; /* # of ARP replies sent by this host. */
118 uint64_t rxrequests; /* # of ARP requests received by this host. */
119 uint64_t rxreplies; /* # of ARP replies received by this host. */
120 uint64_t received; /* # of ARP packets received by this host. */
|
121
| 121
|
122 u_long arp_spares[4]; /* For either the upper or lower half. */
| 122 uint64_t arp_spares[4]; /* For either the upper or lower half. */
|
123 /* Abnormal event and error counting: */
| 123 /* Abnormal event and error counting: */
|
124 u_long dropped; /* # of packets dropped waiting for a reply. */
125 u_long timeouts; /* # of times with entries removed */
| 124 uint64_t dropped; /* # of packets dropped waiting for a reply. */
125 uint64_t timeouts; /* # of times with entries removed */
|
126 /* due to timeout. */
| 126 /* due to timeout. */
|
127 u_long dupips; /* # of duplicate IPs detected. */
| 127 uint64_t dupips; /* # of duplicate IPs detected. */
|
128};
129
130/*
131 * In-kernel consumers can use these accessor macros directly to update
132 * stats.
133 */
134#define ARPSTAT_ADD(name, val) V_arpstat.name += (val)
135#define ARPSTAT_SUB(name, val) V_arpstat.name -= (val)
136#define ARPSTAT_INC(name) ARPSTAT_ADD(name, 1)
137#define ARPSTAT_DEC(name) ARPSTAT_SUB(name, 1)
138
139#endif /* !_NET_IF_ARP_H_ */
| 128};
129
130/*
131 * In-kernel consumers can use these accessor macros directly to update
132 * stats.
133 */
134#define ARPSTAT_ADD(name, val) V_arpstat.name += (val)
135#define ARPSTAT_SUB(name, val) V_arpstat.name -= (val)
136#define ARPSTAT_INC(name) ARPSTAT_ADD(name, 1)
137#define ARPSTAT_DEC(name) ARPSTAT_SUB(name, 1)
138
139#endif /* !_NET_IF_ARP_H_ */
|