85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
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/*
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* Copyright 1998 Massachusetts Institute of Technology
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that both the above copyright notice and this
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* permission notice appear in all copies, that both the above
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* copyright notice and this permission notice appear in all
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* supporting documentation, and that the name of M.I.T. not be used
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* in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. M.I.T. makes
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
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* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
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* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id$
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*/
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#ifndef _NET_IF_VLAN_VAR_H_
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#define _NET_IF_VLAN_VAR_H_ 1
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#ifdef KERNEL
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struct ifvlan {
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struct arpcom ifv_ac; /* make this an interface */
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struct ifnet *ifv_p; /* parent inteface of this vlan */
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struct ifv_linkmib {
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int ifvm_parent;
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u_int16_t ifvm_proto; /* encapsulation ethertype */
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u_int16_t ifvm_tag; /* tag to apply on packets leaving if */
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} ifv_mib;
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};
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#define ifv_if ifv_ac.ac_if
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#define ifv_tag ifv_mib.ifvm_tag
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#endif /* KERNEL */
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struct ether_vlan_header {
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u_char evl_dhost[ETHER_ADDR_LEN];
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u_char evl_shost[ETHER_ADDR_LEN];
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u_int16_t evl_encap_proto;
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u_int16_t evl_tag;
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u_int16_t evl_proto;
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};
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#define EVL_VLANOFTAG(tag) ((tag) & 4095)
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#define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7)
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#define EVL_ENCAPLEN 4 /* length in octets of encapsulation */
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/* When these sorts of interfaces get their own identifier... */
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#define IFT_8021_VLAN IFT_PROPVIRTUAL
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/* sysctl(3) tags, for compatibility purposes */
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#define VLANCTL_PROTO 1
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#define VLANCTL_MAX 2
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/*
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* Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
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*/
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struct vlanreq {
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char vlr_parent[IFNAMSIZ];
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u_short vlr_tag;
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};
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#define SIOCSETVLAN SIOCSIFGENERIC
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#define SIOCGETVLAN SIOCGIFGENERIC
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#ifdef KERNEL
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/* shared with if_ethersubr.c: */
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extern u_int vlan_proto;
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extern int vlan_input(struct ether_header *eh, struct mbuf *m);
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#endif
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#endif /* _NET_IF_VLAN_VAR_H_ */
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