FreeBSD/Linux Kernel Cross Reference
sys/net/if_bridgevar.h

     /*      $NetBSD: if_bridgevar.h,v 1.4 2003/07/08 07:13:50 itojun Exp $  */
     
     /*
      * SPDX-License-Identifier: BSD-4-Clause
      *
      * Copyright 2001 Wasabi Systems, Inc.
      * All rights reserved.
      *
      * Written by Jason R. Thorpe for Wasabi Systems, Inc.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed for the NetBSD Project by
     *      Wasabi Systems, Inc.
     * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     *    or promote products derived from this software without specific prior
     *    written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     */
    
    /*
     * Copyright (c) 1999, 2000 Jason L. Wright (jason@thought.net)
     * All rights reserved.
     *
     * Redistribution and use in source and binary forms, with or without
     * modification, are permitted provided that the following conditions
     * are met:
     * 1. Redistributions of source code must retain the above copyright
     *    notice, this list of conditions and the following disclaimer.
     * 2. Redistributions in binary form must reproduce the above copyright
     *    notice, this list of conditions and the following disclaimer in the
     *    documentation and/or other materials provided with the distribution.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Jason L. Wright
     * 4. The name of the author may not be used to endorse or promote products
     *    derived from this software without specific prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
     * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
     * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
     * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
     * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     * POSSIBILITY OF SUCH DAMAGE.
     *
     * OpenBSD: if_bridge.h,v 1.14 2001/03/22 03:48:29 jason Exp
     *
     * $FreeBSD$
     */
    
    /*
     * Data structure and control definitions for bridge interfaces.
     */
    
    #include <sys/callout.h>
    #include <sys/queue.h>
    #include <sys/condvar.h>
    
    /*
     * Commands used in the SIOCSDRVSPEC ioctl.  Note the lookup of the
     * bridge interface itself is keyed off the ifdrv structure.
     */
    #define BRDGADD                 0       /* add bridge member (ifbreq) */
    #define BRDGDEL                 1       /* delete bridge member (ifbreq) */
    #define BRDGGIFFLGS             2       /* get member if flags (ifbreq) */
    #define BRDGSIFFLGS             3       /* set member if flags (ifbreq) */
    #define BRDGSCACHE              4       /* set cache size (ifbrparam) */
    #define BRDGGCACHE              5       /* get cache size (ifbrparam) */
    #define BRDGGIFS                6       /* get member list (ifbifconf) */
    #define BRDGRTS                 7       /* get address list (ifbaconf) */
    #define BRDGSADDR               8       /* set static address (ifbareq) */
    #define BRDGSTO                 9       /* set cache timeout (ifbrparam) */
    #define BRDGGTO                 10      /* get cache timeout (ifbrparam) */
    #define BRDGDADDR               11      /* delete address (ifbareq) */
    #define BRDGFLUSH               12      /* flush address cache (ifbreq) */
   
   #define BRDGGPRI                13      /* get priority (ifbrparam) */
   #define BRDGSPRI                14      /* set priority (ifbrparam) */
   #define BRDGGHT                 15      /* get hello time (ifbrparam) */
   #define BRDGSHT                 16      /* set hello time (ifbrparam) */
   #define BRDGGFD                 17      /* get forward delay (ifbrparam) */
   #define BRDGSFD                 18      /* set forward delay (ifbrparam) */
   #define BRDGGMA                 19      /* get max age (ifbrparam) */
   #define BRDGSMA                 20      /* set max age (ifbrparam) */
   #define BRDGSIFPRIO             21      /* set if priority (ifbreq) */
   #define BRDGSIFCOST             22      /* set if path cost (ifbreq) */
   #define BRDGADDS                23      /* add bridge span member (ifbreq) */
   #define BRDGDELS                24      /* delete bridge span member (ifbreq) */
   #define BRDGPARAM               25      /* get bridge STP params (ifbropreq) */
   #define BRDGGRTE                26      /* get cache drops (ifbrparam) */
   #define BRDGGIFSSTP             27      /* get member STP params list
                                            * (ifbpstpconf) */
   #define BRDGSPROTO              28      /* set protocol (ifbrparam) */
   #define BRDGSTXHC               29      /* set tx hold count (ifbrparam) */
   #define BRDGSIFAMAX             30      /* set max interface addrs (ifbreq) */
   
   /*
    * Generic bridge control request.
    */
   struct ifbreq {
           char            ifbr_ifsname[IFNAMSIZ]; /* member if name */
           uint32_t        ifbr_ifsflags;          /* member if flags */
           uint32_t        ifbr_stpflags;          /* member if STP flags */
           uint32_t        ifbr_path_cost;         /* member if STP cost */
           uint8_t         ifbr_portno;            /* member if port number */
           uint8_t         ifbr_priority;          /* member if STP priority */
           uint8_t         ifbr_proto;             /* member if STP protocol */
           uint8_t         ifbr_role;              /* member if STP role */
           uint8_t         ifbr_state;             /* member if STP state */
           uint32_t        ifbr_addrcnt;           /* member if addr number */
           uint32_t        ifbr_addrmax;           /* member if addr max */
           uint32_t        ifbr_addrexceeded;      /* member if addr violations */
           uint8_t         pad[32];
   };
   
   /* BRDGGIFFLAGS, BRDGSIFFLAGS */
   #define IFBIF_LEARNING          0x0001  /* if can learn */
   #define IFBIF_DISCOVER          0x0002  /* if sends packets w/ unknown dest. */
   #define IFBIF_STP               0x0004  /* if participates in spanning tree */
   #define IFBIF_SPAN              0x0008  /* if is a span port */
   #define IFBIF_STICKY            0x0010  /* if learned addresses stick */
   #define IFBIF_BSTP_EDGE         0x0020  /* member stp edge port */
   #define IFBIF_BSTP_AUTOEDGE     0x0040  /* member stp autoedge enabled */
   #define IFBIF_BSTP_PTP          0x0080  /* member stp point to point */
   #define IFBIF_BSTP_AUTOPTP      0x0100  /* member stp autoptp enabled */
   #define IFBIF_BSTP_ADMEDGE      0x0200  /* member stp admin edge enabled */
   #define IFBIF_BSTP_ADMCOST      0x0400  /* member stp admin path cost */
   #define IFBIF_PRIVATE           0x0800  /* if is a private segment */
   
   #define IFBIFBITS       "\020\001LEARNING\002DISCOVER\003STP\004SPAN" \
                           "\005STICKY\014PRIVATE\006EDGE\007AUTOEDGE\010PTP" \
                           "\011AUTOPTP"
   #define IFBIFMASK       ~(IFBIF_BSTP_EDGE|IFBIF_BSTP_AUTOEDGE|IFBIF_BSTP_PTP| \
                           IFBIF_BSTP_AUTOPTP|IFBIF_BSTP_ADMEDGE| \
                           IFBIF_BSTP_ADMCOST)     /* not saved */
   
   /* BRDGFLUSH */
   #define IFBF_FLUSHDYN           0x00    /* flush learned addresses only */
   #define IFBF_FLUSHALL           0x01    /* flush all addresses */
   
   /*
    * Interface list structure.
    */
   struct ifbifconf {
           uint32_t        ifbic_len;      /* buffer size */
           union {
                   caddr_t ifbicu_buf;
                   struct ifbreq *ifbicu_req;
           } ifbic_ifbicu;
   #define ifbic_buf       ifbic_ifbicu.ifbicu_buf
   #define ifbic_req       ifbic_ifbicu.ifbicu_req
   };
   
   /*
    * Bridge address request.
    */
   struct ifbareq {
           char            ifba_ifsname[IFNAMSIZ]; /* member if name */
           unsigned long   ifba_expire;            /* address expire time */
           uint8_t         ifba_flags;             /* address flags */
           uint8_t         ifba_dst[ETHER_ADDR_LEN];/* destination address */
           uint16_t        ifba_vlan;              /* vlan id */
   };
   
   #define IFBAF_TYPEMASK  0x03    /* address type mask */
   #define IFBAF_DYNAMIC   0x00    /* dynamically learned address */
   #define IFBAF_STATIC    0x01    /* static address */
   #define IFBAF_STICKY    0x02    /* sticky address */
   
   #define IFBAFBITS       "\020\1STATIC\2STICKY"
   
   /*
    * Address list structure.
    */
   struct ifbaconf {
           uint32_t        ifbac_len;      /* buffer size */
           union {
                   caddr_t ifbacu_buf;
                   struct ifbareq *ifbacu_req;
           } ifbac_ifbacu;
   #define ifbac_buf       ifbac_ifbacu.ifbacu_buf
   #define ifbac_req       ifbac_ifbacu.ifbacu_req
   };
   
   /*
    * Bridge parameter structure.
    */
   struct ifbrparam {
           union {
                   uint32_t ifbrpu_int32;
                   uint16_t ifbrpu_int16;
                   uint8_t ifbrpu_int8;
           } ifbrp_ifbrpu;
   };
   #define ifbrp_csize     ifbrp_ifbrpu.ifbrpu_int32       /* cache size */
   #define ifbrp_ctime     ifbrp_ifbrpu.ifbrpu_int32       /* cache time (sec) */
   #define ifbrp_prio      ifbrp_ifbrpu.ifbrpu_int16       /* bridge priority */
   #define ifbrp_proto     ifbrp_ifbrpu.ifbrpu_int8        /* bridge protocol */
   #define ifbrp_txhc      ifbrp_ifbrpu.ifbrpu_int8        /* bpdu tx holdcount */
   #define ifbrp_hellotime ifbrp_ifbrpu.ifbrpu_int8        /* hello time (sec) */
   #define ifbrp_fwddelay  ifbrp_ifbrpu.ifbrpu_int8        /* fwd time (sec) */
   #define ifbrp_maxage    ifbrp_ifbrpu.ifbrpu_int8        /* max age (sec) */
   #define ifbrp_cexceeded ifbrp_ifbrpu.ifbrpu_int32       /* # of cache dropped
                                                            * adresses */
   /*
    * Bridge current operational parameters structure.
    */
   struct ifbropreq {
           uint8_t         ifbop_holdcount;
           uint8_t         ifbop_maxage;
           uint8_t         ifbop_hellotime;
           uint8_t         ifbop_fwddelay;
           uint8_t         ifbop_protocol;
           uint16_t        ifbop_priority;
           uint16_t        ifbop_root_port;
           uint32_t        ifbop_root_path_cost;
           uint64_t        ifbop_bridgeid;
           uint64_t        ifbop_designated_root;
           uint64_t        ifbop_designated_bridge;
           struct timeval  ifbop_last_tc_time;
   };
   
   /*
    * Bridge member operational STP params structure.
    */
   struct ifbpstpreq {
           uint8_t         ifbp_portno;            /* bp STP port number */
           uint32_t        ifbp_fwd_trans;         /* bp STP fwd transitions */
           uint32_t        ifbp_design_cost;       /* bp STP designated cost */
           uint32_t        ifbp_design_port;       /* bp STP designated port */
           uint64_t        ifbp_design_bridge;     /* bp STP designated bridge */
           uint64_t        ifbp_design_root;       /* bp STP designated root */
   };
   
   /*
    * Bridge STP ports list structure.
    */
   struct ifbpstpconf {
           uint32_t        ifbpstp_len;    /* buffer size */
           union {
                   caddr_t ifbpstpu_buf;
                   struct ifbpstpreq *ifbpstpu_req;
           } ifbpstp_ifbpstpu;
   #define ifbpstp_buf     ifbpstp_ifbpstpu.ifbpstpu_buf
   #define ifbpstp_req     ifbpstp_ifbpstpu.ifbpstpu_req
   };
   
   #define STP_STATES \
       "disabled",    \
       "listening",   \
       "learning",    \
       "forwarding",  \
       "blocking",    \
       "discarding"
   
   #define STP_PROTOS \
       "stp",         \
       "-",           \
       "rstp"
   
   #define STP_ROLES \
       "disabled",   \
       "root",       \
       "designated", \
       "alternate",  \
       "backup"
   
   #define PV2ID(pv, epri, eaddr)  do { \
           epri     = pv >> 48;         \
           eaddr[0] = pv >> 40;         \
           eaddr[1] = pv >> 32;         \
           eaddr[2] = pv >> 24;         \
           eaddr[3] = pv >> 16;         \
           eaddr[4] = pv >> 8;          \
           eaddr[5] = pv >> 0;          \
   } while (0)
   
   #ifdef _KERNEL
   
   #define BRIDGE_INPUT(_ifp, _m)          do {                    \
                   KASSERT((_ifp)->if_bridge_input != NULL,                \
               ("%s: if_bridge not loaded!", __func__));   \
           _m = (*(_ifp)->if_bridge_input)(_ifp, _m);                      \
           if (_m != NULL)                                 \
                   _ifp = _m->m_pkthdr.rcvif;              \
   } while (0)
   
   #define BRIDGE_OUTPUT(_ifp, _m, _err)   do {                    \
           KASSERT((_ifp)->if_bridge_output != NULL,               \
               ("%s: if_bridge not loaded!", __func__));           \
           _err = (*(_ifp)->if_bridge_output)(_ifp, _m, NULL, NULL);       \
   } while (0)
   
   extern  void (*bridge_dn_p)(struct mbuf *, struct ifnet *);
   
   #endif /* _KERNEL */

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