/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _NET_BRIDGE_H
#define _NET_BRIDGE_H

/*
 * Private communication interface between bridging related daemons and kernel
 * layer-two (Ethernet) bridging module.
 */

#include <sys/param.h>
#include <sys/dld.h>
#include <sys/ethernet.h>

#ifdef __cplusplus
extern "C" {
#endif

/* Specified by IEEE 802.1d */
#define BRIDGE_GROUP_ADDRESS    { 0x01, 0x80, 0xC2, 0, 0, 0 }

/* The constant below is "BRG" in hex. */
#define _BRIOC(n)       (0x42524700 + (n))

#define BRIOC_NEWBRIDGE _BRIOC(1)       /* Create bridge; bridge_newbridge_t */
#define BRIOC_ADDLINK   _BRIOC(2)       /* Add link to bridge; linkid+name */
#define BRIOC_REMLINK   _BRIOC(3)       /* Remove link from bridge; linkid */
#define BRIOC_SETSTATE  _BRIOC(4)       /* bridge_setstate_t */
#define BRIOC_SETPVID   _BRIOC(5)       /* bridge_setpvid_t */
#define BRIOC_VLANENAB  _BRIOC(6)       /* bridge_vlanenab_t */
#define BRIOC_FLUSHFWD  _BRIOC(7)       /* bridge_flushfwd_t */
#define BRIOC_LISTFWD   _BRIOC(8)       /* bridge_listfwd_t */
#define BRIOC_TABLEMAX  _BRIOC(8)       /* uint32_t */

#define BRIDGE_CTL      "bridgectl"
#define BRIDGE_CTLPATH  "/dev/" BRIDGE_CTL

typedef struct bridge_newbridge_s {
        datalink_id_t   bnb_linkid;             /* bridge link ID */
        char            bnb_name[MAXNAMELEN];   /* bridge name */
} bridge_newbridge_t;

typedef enum bridge_state_e {
        BLS_BLOCKLISTEN,                /* blocking or listening state */
        BLS_LEARNING,                   /* learning state */
        BLS_FORWARDING                  /* forwarding state */
} bridge_state_t;

typedef struct bridge_setstate_s {
        datalink_id_t   bss_linkid;
        bridge_state_t  bss_state;
} bridge_setstate_t;

typedef struct bridge_setpvid_s {
        datalink_id_t   bsv_linkid;
        uint_t          bsv_vlan;
} bridge_setpvid_t;

typedef struct bridge_vlanenab_s {
        datalink_id_t   bve_linkid;
        uint_t          bve_vlan;
        boolean_t       bve_onoff;
} bridge_vlanenab_t;

typedef struct bridge_flushfwd_s {
        datalink_id_t   bff_linkid;
        boolean_t       bff_exclude;
} bridge_flushfwd_t;

typedef struct bridge_listfwd_s {
        char            blf_name[MAXNAMELEN];   /* bridge name */
        ether_addr_t    blf_dest;
        uint16_t        blf_trill_nick;
        uint_t          blf_ms_age;
        boolean_t       blf_is_local;
        datalink_id_t   blf_linkid;
} bridge_listfwd_t;

/* Upward control messages */
typedef struct bridge_ctl_s {
        datalink_id_t   bc_linkid;
        boolean_t       bc_failed;      /* Max SDU mismatch */
} bridge_ctl_t;

/* GLDv3 control ioctls used by Bridging */
#define BRIDGE_IOC_LISTFWD      BRIDGEIOC(1)

#ifdef __cplusplus
}
#endif

#endif /* _NET_BRIDGE_H */