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 1.11 2002/03/11 09:26:07 mux Exp $ 30 */ 31 32 #ifndef _NET_IF_VLAN_VAR_H_ 33 #define _NET_IF_VLAN_VAR_H_ 1 34 35 #ifdef _KERNEL 36 struct vlan_mc_entry { 37 struct ether_addr mc_addr; 38 SLIST_ENTRY(vlan_mc_entry) mc_entries; 39 }; 40 41 struct 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 }; 52 #define ifv_if ifv_ac.ac_if 53 #define ifv_tag ifv_mib.ifvm_tag 54 #endif /* _KERNEL */ 55 56 struct ether_vlan_header { 57 u_char evl_dhost[ETHER_ADDR_LEN]; 58 u_char evl_shost[ETHER_ADDR_LEN]; 59 u_int16_t evl_encap_proto; 60 u_int16_t evl_tag; 61 u_int16_t evl_proto; 62 }; 63 64 #define EVL_VLANOFTAG(tag) ((tag) & 4095) 65 #define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7) 66 #define EVL_ENCAPLEN 4 /* length in octets of encapsulation */ 67 68 /* sysctl(3) tags, for compatibility purposes */ 69 #define VLANCTL_PROTO 1 70 #define VLANCTL_MAX 2 71 72 /* 73 * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls. 74 */ 75 struct vlanreq { 76 char vlr_parent[IFNAMSIZ]; 77 u_short vlr_tag; 78 }; 79 #define SIOCSETVLAN SIOCSIFGENERIC 80 #define SIOCGETVLAN SIOCGIFGENERIC 81 82 #endif /* _NET_IF_VLAN_VAR_H_ */ 83