if_vlan_var.h revision 60938
1234285Sdim/* 2234285Sdim * Copyright 1998 Massachusetts Institute of Technology 3234285Sdim * 4234285Sdim * Permission to use, copy, modify, and distribute this software and 5234285Sdim * its documentation for any purpose and without fee is hereby 6234285Sdim * granted, provided that both the above copyright notice and this 7234285Sdim * permission notice appear in all copies, that both the above 8234285Sdim * copyright notice and this permission notice appear in all 9234285Sdim * supporting documentation, and that the name of M.I.T. not be used 10234285Sdim * in advertising or publicity pertaining to distribution of the 11234285Sdim * software without specific, written prior permission. M.I.T. makes 12234285Sdim * no representations about the suitability of this software for any 13234285Sdim * purpose. It is provided "as is" without express or implied 14234285Sdim * warranty. 15234285Sdim * 16234285Sdim * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS 17234285Sdim * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, 18234285Sdim * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19234285Sdim * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT 20234285Sdim * SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21234285Sdim * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22234285Sdim * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 23234285Sdim * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 24234285Sdim * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25234285Sdim * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 26234285Sdim * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27234285Sdim * SUCH DAMAGE. 28234285Sdim * 29234285Sdim * $FreeBSD: head/sys/net/if_vlan_var.h 60938 2000-05-26 02:09:24Z jake $ 30234285Sdim */ 31234285Sdim 32234285Sdim#ifndef _NET_IF_VLAN_VAR_H_ 33234285Sdim#define _NET_IF_VLAN_VAR_H_ 1 34234285Sdim 35234285Sdim#ifdef _KERNEL 36234285Sdimstruct vlan_mc_entry { 37234285Sdim struct ether_addr mc_addr; 38252723Sdim SLIST_ENTRY(vlan_mc_entry) mc_entries; 39252723Sdim}; 40252723Sdim 41252723Sdimstruct ifvlan { 42252723Sdim struct arpcom ifv_ac; /* make this an interface */ 43234285Sdim struct ifnet *ifv_p; /* parent inteface of this vlan */ 44234285Sdim struct ifv_linkmib { 45234285Sdim int ifvm_parent; 46234285Sdim u_int16_t ifvm_proto; /* encapsulation ethertype */ 47234285Sdim u_int16_t ifvm_tag; /* tag to apply on packets leaving if */ 48234285Sdim } ifv_mib; 49234285Sdim SLIST_HEAD(__vlan_mchead, vlan_mc_entry) vlan_mc_listhead; 50234285Sdim}; 51234285Sdim#define ifv_if ifv_ac.ac_if 52234285Sdim#define ifv_tag ifv_mib.ifvm_tag 53234285Sdim#endif /* _KERNEL */ 54234285Sdim 55234285Sdimstruct ether_vlan_header { 56 u_char evl_dhost[ETHER_ADDR_LEN]; 57 u_char evl_shost[ETHER_ADDR_LEN]; 58 u_int16_t evl_encap_proto; 59 u_int16_t evl_tag; 60 u_int16_t evl_proto; 61}; 62 63#define EVL_VLANOFTAG(tag) ((tag) & 4095) 64#define EVL_PRIOFTAG(tag) (((tag) >> 13) & 7) 65#define EVL_ENCAPLEN 4 /* length in octets of encapsulation */ 66 67/* When these sorts of interfaces get their own identifier... */ 68#define IFT_8021_VLAN IFT_PROPVIRTUAL 69 70/* sysctl(3) tags, for compatibility purposes */ 71#define VLANCTL_PROTO 1 72#define VLANCTL_MAX 2 73 74/* 75 * Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls. 76 */ 77struct vlanreq { 78 char vlr_parent[IFNAMSIZ]; 79 u_short vlr_tag; 80}; 81#define SIOCSETVLAN SIOCSIFGENERIC 82#define SIOCGETVLAN SIOCGIFGENERIC 83 84#ifdef _KERNEL 85/* shared with if_ethersubr.c: */ 86extern u_int vlan_proto; 87extern int vlan_input(struct ether_header *eh, struct mbuf *m); 88extern int vlan_input_tag(struct ether_header *eh, 89 struct mbuf *m, u_int16_t t); 90#endif 91 92#endif /* _NET_IF_VLAN_VAR_H_ */ 93