xref: /dragonfly/sys/net/vlan/if_vlan_var.h (revision 86d7f5d3)
1 /*
2  * Copyright 1998 Massachusetts Institute of Technology
3  *
4  * Permission to use, copy, modify, and distribute this software and
5  * its documentation for any purpose and without fee is hereby
6  * granted, provided that both the above copyright notice and this
7  * permission notice appear in all copies, that both the above
8  * copyright notice and this permission notice appear in all
9  * supporting documentation, and that the name of M.I.T. not be used
10  * in advertising or publicity pertaining to distribution of the
11  * software without specific, written prior permission.  M.I.T. makes
12  * no representations about the suitability of this software for any
13  * purpose.  It is provided "as is" without express or implied
14  * warranty.
15  *
16  * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
17  * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
18  * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
20  * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD: src/sys/net/if_vlan_var.h,v 1.5.2.3 2001/12/04 20:01:54 brooks Exp $
30  * $DragonFly: src/sys/net/vlan/if_vlan_var.h,v 1.4 2008/03/10 10:47:57 sephe Exp $
31  */
32 
33 #ifndef _NET_IF_VLAN_VAR_H_
34 #define	_NET_IF_VLAN_VAR_H_
35 
36 struct	ether_vlan_header {
37 	u_char	evl_dhost[ETHER_ADDR_LEN];
38 	u_char	evl_shost[ETHER_ADDR_LEN];
39 	u_int16_t evl_encap_proto;
40 	u_int16_t evl_tag;
41 	u_int16_t evl_proto;
42 };
43 
44 #define	EVL_VLANOFTAG(tag) ((tag) & 4095)
45 #define	EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
46 #define	EVL_ENCAPLEN	4	/* length in octets of encapsulation */
47 
48 /* sysctl(3) tags, for compatibility purposes */
49 #define	VLANCTL_PROTO	1
50 #define	VLANCTL_MAX	2
51 
52 /*
53  * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
54  */
55 struct	vlanreq {
56 	char	vlr_parent[IFNAMSIZ];
57 	u_short	vlr_tag;
58 };
59 #define	SIOCSETVLAN	SIOCSIFGENERIC
60 #define	SIOCGETVLAN	SIOCGIFGENERIC
61 
62 #endif /* _NET_IF_VLAN_VAR_H_ */
63