if_vlan_var.h revision 83115
1151497Sru/* 2151497Sru * Copyright 1998 Massachusetts Institute of Technology 3151497Sru * 4151497Sru * Permission to use, copy, modify, and distribute this software and 5151497Sru * its documentation for any purpose and without fee is hereby 6151497Sru * granted, provided that both the above copyright notice and this 7151497Sru * permission notice appear in all copies, that both the above 8151497Sru * copyright notice and this permission notice appear in all 9151497Sru * supporting documentation, and that the name of M.I.T. not be used 10151497Sru * in advertising or publicity pertaining to distribution of the 11151497Sru * 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: head/sys/net/if_vlan_var.h 83115 2001-09-05 21:10:28Z brooks $ 30 */ 31 32#ifndef _NET_IF_VLAN_VAR_H_ 33#define _NET_IF_VLAN_VAR_H_ 1 34 35#ifdef _KERNEL 36struct vlan_mc_entry { 37 struct ether_addr mc_addr; 38 SLIST_ENTRY(vlan_mc_entry) mc_entries; 39}; 40 41struct ifvlan { 42 struct arpcom ifv_ac; /* make this an interface */ 43 struct ifnet *ifv_p; /* parent inteface of this vlan */ 44 struct ifv_linkmib { 45 int ifvm_parent; 46 u_int16_t ifvm_proto; /* encapsulation ethertype */ 47 u_int16_t ifvm_tag; /* tag to apply on packets leaving if */ 48 } ifv_mib; 49 SLIST_HEAD(__vlan_mchead, vlan_mc_entry) vlan_mc_listhead; 50 LIST_ENTRY(ifvlan) ifv_list; 51 struct resource *r_unit; /* resource allocated for this unit */ 52}; 53#define ifv_if ifv_ac.ac_if 54#define ifv_tag ifv_mib.ifvm_tag 55#endif /* _KERNEL */ 56 57struct ether_vlan_header { 58 u_char evl_dhost[ETHER_ADDR_LEN]; 59 u_char evl_shost[ETHER_ADDR_LEN]; 60 u_int16_t evl_encap_proto; 61 u_int16_t evl_tag; 62 u_int16_t evl_proto; 63}; 64 65#define EVL_VLANOFTAG(tag) ((tag) & 4095) 66#define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7) 67#define EVL_ENCAPLEN 4 /* length in octets of encapsulation */ 68 69/* sysctl(3) tags, for compatibility purposes */ 70#define VLANCTL_PROTO 1 71#define VLANCTL_MAX 2 72 73/* 74 * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls. 75 */ 76struct vlanreq { 77 char vlr_parent[IFNAMSIZ]; 78 u_short vlr_tag; 79}; 80#define SIOCSETVLAN SIOCSIFGENERIC 81#define SIOCGETVLAN SIOCGIFGENERIC 82 83#endif /* _NET_IF_VLAN_VAR_H_ */ 84