1 /* $OpenBSD: if_vlan_var.h,v 1.24 2013/10/24 11:14:33 deraadt 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 struct ether_vlan_header { 38 u_char evl_dhost[ETHER_ADDR_LEN]; 39 u_char evl_shost[ETHER_ADDR_LEN]; 40 u_int16_t evl_encap_proto; 41 u_int16_t evl_tag; 42 u_int16_t evl_proto; 43 }; 44 45 #define EVL_VLID_MASK 0x0FFF 46 #define EVL_VLANOFTAG(tag) ((tag) & EVL_VLID_MASK) 47 #define EVL_PRIOFTAG(tag) (((tag) >> EVL_PRIO_BITS) & 7) 48 #define EVL_ENCAPLEN 4 /* length in octets of encapsulation */ 49 #define EVL_PRIO_MAX 7 50 #define EVL_PRIO_BITS 13 51 52 /* sysctl(3) tags, for compatibility purposes */ 53 #define VLANCTL_PROTO 1 54 #define VLANCTL_MAX 2 55 56 /* 57 * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls. 58 */ 59 struct vlanreq { 60 char vlr_parent[IFNAMSIZ]; 61 u_short vlr_tag; 62 }; 63 64 #ifdef _KERNEL 65 #define mc_enm mc_u.mcu_enm 66 67 struct vlan_mc_entry { 68 LIST_ENTRY(vlan_mc_entry) mc_entries; 69 union { 70 struct ether_multi *mcu_enm; 71 } mc_u; 72 struct sockaddr_storage mc_addr; 73 }; 74 75 struct ifvlan { 76 struct arpcom ifv_ac; /* make this an interface */ 77 struct ifnet *ifv_p; /* parent interface of this vlan */ 78 struct ifv_linkmib { 79 int ifvm_parent; 80 u_int16_t ifvm_proto; /* encapsulation ethertype */ 81 u_int16_t ifvm_tag; /* tag to apply on packets leaving if */ 82 u_int16_t ifvm_prio; /* prio to apply on packet leaving if */ 83 u_int16_t ifvm_type; /* non-standard ethertype or 0x8100 */ 84 } ifv_mib; 85 LIST_HEAD(__vlan_mchead, vlan_mc_entry) vlan_mc_listhead; 86 LIST_ENTRY(ifvlan) ifv_list; 87 int ifv_flags; 88 void *lh_cookie; 89 void *dh_cookie; 90 }; 91 92 #define ifv_if ifv_ac.ac_if 93 #define ifv_tag ifv_mib.ifvm_tag 94 #define ifv_prio ifv_mib.ifvm_prio 95 #define ifv_type ifv_mib.ifvm_type 96 #define IFVF_PROMISC 0x01 97 98 extern int vlan_input(struct ether_header *eh, struct mbuf *m); 99 #endif /* _KERNEL */ 100 101 #endif /* _NET_IF_VLAN_VAR_H_ */ 102