1 /* $OpenBSD: if_vlan_var.h,v 1.19 2008/11/07 00:52:40 brad 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 #define mc_enm mc_u.mcu_enm 39 40 struct vlan_mc_entry { 41 LIST_ENTRY(vlan_mc_entry) mc_entries; 42 union { 43 struct ether_multi *mcu_enm; 44 } mc_u; 45 struct sockaddr_storage mc_addr; 46 }; 47 48 struct ifvlan { 49 struct arpcom ifv_ac; /* make this an interface */ 50 struct ifnet *ifv_p; /* parent interface of this vlan */ 51 struct ifv_linkmib { 52 int ifvm_parent; 53 u_int16_t ifvm_proto; /* encapsulation ethertype */ 54 u_int16_t ifvm_tag; /* tag to apply on packets leaving if */ 55 u_int16_t ifvm_prio; /* prio to apply on packet leaving if */ 56 } ifv_mib; 57 LIST_HEAD(__vlan_mchead, vlan_mc_entry) vlan_mc_listhead; 58 LIST_ENTRY(ifvlan) ifv_list; 59 int ifv_flags; 60 void *lh_cookie; 61 void *dh_cookie; 62 }; 63 64 #define ifv_if ifv_ac.ac_if 65 #define ifv_tag ifv_mib.ifvm_tag 66 #define ifv_prio ifv_mib.ifvm_prio 67 #define IFVF_PROMISC 0x01 68 #endif /* _KERNEL */ 69 70 struct ether_vlan_header { 71 u_char evl_dhost[ETHER_ADDR_LEN]; 72 u_char evl_shost[ETHER_ADDR_LEN]; 73 u_int16_t evl_encap_proto; 74 u_int16_t evl_tag; 75 u_int16_t evl_proto; 76 }; 77 78 #define EVL_VLID_MASK 0x0FFF 79 #define EVL_VLANOFTAG(tag) ((tag) & EVL_VLID_MASK) 80 #define EVL_PRIOFTAG(tag) (((tag) >> EVL_PRIO_BITS) & 7) 81 #define EVL_ENCAPLEN 4 /* length in octets of encapsulation */ 82 #define EVL_PRIO_MAX 7 83 #define EVL_PRIO_BITS 13 84 85 /* sysctl(3) tags, for compatibility purposes */ 86 #define VLANCTL_PROTO 1 87 #define VLANCTL_MAX 2 88 89 /* 90 * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls. 91 */ 92 struct vlanreq { 93 char vlr_parent[IFNAMSIZ]; 94 u_short vlr_tag; 95 }; 96 #define SIOCSETVLAN SIOCSIFGENERIC 97 #define SIOCGETVLAN SIOCGIFGENERIC 98 99 #ifdef _KERNEL 100 extern int vlan_input(struct ether_header *eh, struct mbuf *m); 101 #endif /* _KERNEL */ 102 #endif /* _NET_IF_VLAN_VAR_H_ */ 103