[apple/xnu.git] / bsd / net / if_vlan_var.h

/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 * 
 * This Original Code and all software distributed under the License are
 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*
 * Copyright 1998 Massachusetts Institute of Technology
 *
 * Permission to use, copy, modify, and distribute this software and
 * its documentation for any purpose and without fee is hereby
 * granted, provided that both the above copyright notice and this
 * permission notice appear in all copies, that both the above
 * copyright notice and this permission notice appear in all
 * supporting documentation, and that the name of M.I.T. not be used
 * in advertising or publicity pertaining to distribution of the
 * software without specific, written prior permission.  M.I.T. makes
 * no representations about the suitability of this software for any
 * purpose.  It is provided "as is" without express or implied
 * warranty.
 * 
 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''.  M.I.T. DISCLAIMS
 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
 * SHALL M.I.T. 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.
 *
 */

#ifndef _NET_IF_VLAN_VAR_H_
#define	_NET_IF_VLAN_VAR_H_	1

#ifdef KERNEL
struct	ifvlan {
	struct	arpcom ifv_ac;	/* make this an interface */
	struct	ifnet *ifv_p;	/* parent inteface of this vlan */
	struct	ifv_linkmib {
		int	ifvm_parent;
		u_int16_t ifvm_proto; /* encapsulation ethertype */
		u_int16_t ifvm_tag; /* tag to apply on packets leaving if */
	}	ifv_mib;
};
#define	ifv_if	ifv_ac.ac_if
#define	ifv_tag	ifv_mib.ifvm_tag
#endif /* KERNEL */

struct	ether_vlan_header {
	u_char	evl_dhost[ETHER_ADDR_LEN];
	u_char	evl_shost[ETHER_ADDR_LEN];
	u_int16_t evl_encap_proto;
	u_int16_t evl_tag;
	u_int16_t evl_proto;
};

#define	EVL_VLANOFTAG(tag) ((tag) & 4095)
#define	EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
#define	EVL_ENCAPLEN	4	/* length in octets of encapsulation */

/* When these sorts of interfaces get their own identifier... */
#define	IFT_8021_VLAN	IFT_PROPVIRTUAL

/* sysctl(3) tags, for compatibility purposes */
#define	VLANCTL_PROTO	1
#define	VLANCTL_MAX	2

/*
 * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
 */
struct	vlanreq {
	char	vlr_parent[IFNAMSIZ];
	u_short	vlr_tag;
};
#define	SIOCSETVLAN	SIOCSIFGENERIC
#define	SIOCGETVLAN	SIOCGIFGENERIC

#ifdef KERNEL
/* shared with if_ethersubr.c: */
extern	u_int vlan_proto;
extern	int vlan_input(struct ether_header *eh, struct mbuf *m);
#endif

#endif /* _NET_IF_VLAN_VAR_H_ */
Commit	Line	Data
1c79356b A	1	/*
	2	* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
	3	*
	4	* @APPLE_LICENSE_HEADER_START@
	5	*
	6	* The contents of this file constitute Original Code as defined in and
	7	* are subject to the Apple Public Source License Version 1.1 (the
	8	* "License"). You may not use this file except in compliance with the
	9	* License. Please obtain a copy of the License at
	10	* http://www.apple.com/publicsource and read it before using this file.
	11	*
	12	* This Original Code and all software distributed under the License are
	13	* distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
	14	* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
	15	* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
	16	* FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
	17	* License for the specific language governing rights and limitations
	18	* under the License.
	19	*
	20	* @APPLE_LICENSE_HEADER_END@
	21	*/
	22	/*
	23	* Copyright 1998 Massachusetts Institute of Technology
	24	*
	25	* Permission to use, copy, modify, and distribute this software and
	26	* its documentation for any purpose and without fee is hereby
	27	* granted, provided that both the above copyright notice and this
	28	* permission notice appear in all copies, that both the above
	29	* copyright notice and this permission notice appear in all
	30	* supporting documentation, and that the name of M.I.T. not be used
	31	* in advertising or publicity pertaining to distribution of the
	32	* software without specific, written prior permission. M.I.T. makes
	33	* no representations about the suitability of this software for any
	34	* purpose. It is provided "as is" without express or implied
	35	* warranty.
	36	*
	37	* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
	38	* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
	39	* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
	40	* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
	41	* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	42	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	43	* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
	44	* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	45	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
	46	* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
	47	* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	48	* SUCH DAMAGE.
	49	*
	50	*/
	51
	52	#ifndef _NET_IF_VLAN_VAR_H_
	53	#define _NET_IF_VLAN_VAR_H_ 1
	54
	55	#ifdef KERNEL
	56	struct ifvlan {
	57	struct arpcom ifv_ac; /* make this an interface */
	58	struct ifnet ifv_p; / parent inteface of this vlan */
	59	struct ifv_linkmib {
	60	int ifvm_parent;
	61	u_int16_t ifvm_proto; /* encapsulation ethertype */
	62	u_int16_t ifvm_tag; /* tag to apply on packets leaving if */
	63	} ifv_mib;
	64	};
65	#define ifv_if ifv_ac.ac_if
66	#define ifv_tag ifv_mib.ifvm_tag
67	#endif /* KERNEL */
68
69	struct ether_vlan_header {
70	u_char evl_dhost[ETHER_ADDR_LEN];
71	u_char evl_shost[ETHER_ADDR_LEN];
72	u_int16_t evl_encap_proto;
73	u_int16_t evl_tag;
74	u_int16_t evl_proto;
75	};
76
77	#define EVL_VLANOFTAG(tag) ((tag) & 4095)
78	#define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
79	#define EVL_ENCAPLEN 4 /* length in octets of encapsulation */
80
81	/* When these sorts of interfaces get their own identifier... */
82	#define IFT_8021_VLAN IFT_PROPVIRTUAL
83
84	/* sysctl(3) tags, for compatibility purposes */
85	#define VLANCTL_PROTO 1
86	#define VLANCTL_MAX 2
87
88	/*
89	* Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
90	*/
91	struct vlanreq {
92	char vlr_parent[IFNAMSIZ];
93	u_short vlr_tag;
94	};
95	#define SIOCSETVLAN SIOCSIFGENERIC
96	#define SIOCGETVLAN SIOCGIFGENERIC
97
98	#ifdef KERNEL
99	/* shared with if_ethersubr.c: */
100	extern u_int vlan_proto;
101	extern int vlan_input(struct ether_header eh, struct mbuf m);
102	#endif
103
104	#endif /* _NET_IF_VLAN_VAR_H_ */