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Annotation of sys/net/if_vlan_var.h, Revision 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_ */

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