1 /* $OpenBSD: if_vlan_var.h,v 1.7 2001/06/24 22:52:08 jason Exp $ */ 2 3 /* 4 * Copyright 1998 Massachusetts Institute of Technology 5 * 6 * Permission to use, copy, modify, and distribute this software and 7 * its documentation for any purpose and without fee is hereby 8 * granted, provided that both the above copyright notice and this 9 * permission notice appear in all copies, that both the above 10 * copyright notice and this permission notice appear in all 11 * supporting documentation, and that the name of M.I.T. not be used 12 * in advertising or publicity pertaining to distribution of the 13 * software without specific, written prior permission. M.I.T. makes 14 * no representations about the suitability of this software for any 15 * purpose. It is provided "as is" without express or implied 16 * warranty. 17 * 18 * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 19 * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 20 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 21 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 22 * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 25 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 26 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 28 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * $FreeBSD: src/sys/net/if_vlan_var.h,v 1.3 1999/08/28 00:48:24 peter Exp $ 32 */ 33 34 #ifndef _NET_IF_VLAN_VAR_H_ 35 #define _NET_IF_VLAN_VAR_H_ 36 37 #ifdef _KERNEL 38 struct vlan_mc_entry { 39 struct ether_addr mc_addr; 40 SLIST_ENTRY(vlan_mc_entry) mc_entries; 41 }; 42 43 struct ifvlan { 44 struct arpcom ifv_ac; /* make this an interface */ 45 struct ifnet *ifv_p; /* parent interface of this vlan */ 46 struct ifv_linkmib { 47 int ifvm_parent; 48 u_int16_t ifvm_proto; /* encapsulation ethertype */ 49 u_int16_t ifvm_tag; /* tag to apply on packets leaving if */ 50 } ifv_mib; 51 SLIST_HEAD(__vlan_mchead, vlan_mc_entry) vlan_mc_listhead; 52 int ifv_flags; 53 }; 54 #define ifv_if ifv_ac.ac_if 55 #define ifv_tag ifv_mib.ifvm_tag 56 #define IFVF_PROMISC 0x01 57 #endif /* _KERNEL */ 58 59 struct ether_vlan_header { 60 u_char evl_dhost[ETHER_ADDR_LEN]; 61 u_char evl_shost[ETHER_ADDR_LEN]; 62 u_int16_t evl_encap_proto; 63 u_int16_t evl_tag; 64 u_int16_t evl_proto; 65 }; 66 67 #define EVL_VLANOFTAG(tag) ((tag) & 4095) 68 #define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7) 69 #define EVL_ENCAPLEN 4 /* length in octets of encapsulation */ 70 71 /* When these sorts of interfaces get their own identifier... */ 72 #define IFT_8021_VLAN IFT_PROPVIRTUAL 73 74 /* sysctl(3) tags, for compatibility purposes */ 75 #define VLANCTL_PROTO 1 76 #define VLANCTL_MAX 2 77 78 /* 79 * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls. 80 */ 81 struct vlanreq { 82 char vlr_parent[IFNAMSIZ]; 83 u_short vlr_tag; 84 }; 85 #define SIOCSETVLAN SIOCSIFGENERIC 86 #define SIOCGETVLAN SIOCGIFGENERIC 87 88 #ifdef _KERNEL 89 extern int vlan_input(register struct ether_header *eh, struct mbuf *m); 90 extern int vlan_input_tag(struct mbuf *m, u_int16_t t); 91 #endif /* _KERNEL */ 92 #endif /* _NET_IF_VLAN_VAR_H_ */ 93