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Annotation of sys/net/if_vlan_var.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: if_vlan_var.h,v 1.18 2006/02/09 00:05:55 reyk 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) >> 13) & 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_ */