if_bridgevar.h revision 164880
1262569Simp/* $NetBSD: if_bridgevar.h,v 1.4 2003/07/08 07:13:50 itojun Exp $ */ 2262569Simp 3262569Simp/* 4262569Simp * Copyright 2001 Wasabi Systems, Inc. 5262569Simp * All rights reserved. 6262569Simp * 7262569Simp * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8262569Simp * 9262569Simp * Redistribution and use in source and binary forms, with or without 10262569Simp * modification, are permitted provided that the following conditions 11262569Simp * are met: 12262569Simp * 1. Redistributions of source code must retain the above copyright 13262569Simp * notice, this list of conditions and the following disclaimer. 14262569Simp * 2. Redistributions in binary form must reproduce the above copyright 15262569Simp * notice, this list of conditions and the following disclaimer in the 16262569Simp * documentation and/or other materials provided with the distribution. 17262569Simp * 3. All advertising materials mentioning features or use of this software 18262569Simp * must display the following acknowledgement: 19262569Simp * This product includes software developed for the NetBSD Project by 20262569Simp * Wasabi Systems, Inc. 21262569Simp * 4. The name of Wasabi Systems, Inc. may not be used to endorse 22262569Simp * or promote products derived from this software without specific prior 23262569Simp * written permission. 24262569Simp * 25262569Simp * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND 26262569Simp * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27262569Simp * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28262569Simp * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC 29262569Simp * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30262569Simp * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31262569Simp * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32262569Simp * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33262569Simp * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34262569Simp * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35262569Simp * POSSIBILITY OF SUCH DAMAGE. 36262569Simp */ 37262569Simp 38262569Simp/* 39262569Simp * Copyright (c) 1999, 2000 Jason L. Wright (jason@thought.net) 40262569Simp * All rights reserved. 41262569Simp * 42262569Simp * Redistribution and use in source and binary forms, with or without 43262569Simp * modification, are permitted provided that the following conditions 44262569Simp * are met: 45262569Simp * 1. Redistributions of source code must retain the above copyright 46262569Simp * notice, this list of conditions and the following disclaimer. 47262569Simp * 2. Redistributions in binary form must reproduce the above copyright 48262569Simp * notice, this list of conditions and the following disclaimer in the 49262569Simp * documentation and/or other materials provided with the distribution. 50262569Simp * 3. All advertising materials mentioning features or use of this software 51262569Simp * must display the following acknowledgement: 52262569Simp * This product includes software developed by Jason L. Wright 53262569Simp * 4. The name of the author may not be used to endorse or promote products 54262569Simp * derived from this software without specific prior written permission. 55262569Simp * 56262569Simp * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 57262569Simp * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 58262569Simp * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 59262569Simp * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 60262569Simp * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 61262569Simp * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 62262569Simp * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 63262569Simp * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 64262569Simp * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 65262569Simp * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 66262569Simp * POSSIBILITY OF SUCH DAMAGE. 67262569Simp * 68262569Simp * OpenBSD: if_bridge.h,v 1.14 2001/03/22 03:48:29 jason Exp 69262569Simp * 70262569Simp * $FreeBSD: head/sys/net/if_bridgevar.h 164880 2006-12-04 14:45:02Z syrinx $ 71262569Simp */ 72262569Simp 73262569Simp/* 74262569Simp * Data structure and control definitions for bridge interfaces. 75262569Simp */ 76262569Simp 77262569Simp#include <sys/callout.h> 78262569Simp#include <sys/queue.h> 79262569Simp#include <sys/condvar.h> 80262569Simp 81262569Simp/* 82262569Simp * Commands used in the SIOCSDRVSPEC ioctl. Note the lookup of the 83262569Simp * bridge interface itself is keyed off the ifdrv structure. 84262569Simp */ 85262569Simp#define BRDGADD 0 /* add bridge member (ifbreq) */ 86262569Simp#define BRDGDEL 1 /* delete bridge member (ifbreq) */ 87262569Simp#define BRDGGIFFLGS 2 /* get member if flags (ifbreq) */ 88262569Simp#define BRDGSIFFLGS 3 /* set member if flags (ifbreq) */ 89262569Simp#define BRDGSCACHE 4 /* set cache size (ifbrparam) */ 90262569Simp#define BRDGGCACHE 5 /* get cache size (ifbrparam) */ 91262569Simp#define BRDGGIFS 6 /* get member list (ifbifconf) */ 92262569Simp#define BRDGRTS 7 /* get address list (ifbaconf) */ 93262569Simp#define BRDGSADDR 8 /* set static address (ifbareq) */ 94262569Simp#define BRDGSTO 9 /* set cache timeout (ifbrparam) */ 95262569Simp#define BRDGGTO 10 /* get cache timeout (ifbrparam) */ 96262569Simp#define BRDGDADDR 11 /* delete address (ifbareq) */ 97262569Simp#define BRDGFLUSH 12 /* flush address cache (ifbreq) */ 98262569Simp 99262569Simp#define BRDGGPRI 13 /* get priority (ifbrparam) */ 100262569Simp#define BRDGSPRI 14 /* set priority (ifbrparam) */ 101262569Simp#define BRDGGHT 15 /* get hello time (ifbrparam) */ 102262569Simp#define BRDGSHT 16 /* set hello time (ifbrparam) */ 103262569Simp#define BRDGGFD 17 /* get forward delay (ifbrparam) */ 104262569Simp#define BRDGSFD 18 /* set forward delay (ifbrparam) */ 105262569Simp#define BRDGGMA 19 /* get max age (ifbrparam) */ 106262569Simp#define BRDGSMA 20 /* set max age (ifbrparam) */ 107262569Simp#define BRDGSIFPRIO 21 /* set if priority (ifbreq) */ 108262569Simp#define BRDGSIFCOST 22 /* set if path cost (ifbreq) */ 109262569Simp#define BRDGADDS 23 /* add bridge span member (ifbreq) */ 110262569Simp#define BRDGDELS 24 /* delete bridge span member (ifbreq) */ 111262569Simp#define BRDGPARAM 25 /* get bridge STP params (ifbropreq) */ 112262569Simp#define BRDGGRTE 26 /* get cache drops (ifbrparam) */ 113262569Simp#define BRDGGIFSSTP 27 /* get member STP params list 114262569Simp * (ifbpstpconf) */ 115262569Simp#define BRDGSPROTO 28 /* set protocol (ifbrparam) */ 116262569Simp#define BRDGSTXHC 29 /* set tx hold count (ifbrparam) */ 117262569Simp 118262569Simp/* 119262569Simp * Generic bridge control request. 120262569Simp */ 121262569Simpstruct ifbreq { 122262569Simp char ifbr_ifsname[IFNAMSIZ]; /* member if name */ 123262569Simp uint32_t ifbr_ifsflags; /* member if flags */ 124262569Simp uint32_t ifbr_stpflags; /* member if STP flags */ 125262569Simp uint32_t ifbr_path_cost; /* member if STP cost */ 126262569Simp uint8_t ifbr_portno; /* member if port number */ 127262569Simp uint8_t ifbr_priority; /* member if STP priority */ 128262569Simp uint8_t ifbr_proto; /* member if STP protocol */ 129262569Simp uint8_t ifbr_role; /* member if STP role */ 130262569Simp uint8_t ifbr_state; /* member if STP state */ 131262569Simp}; 132262569Simp 133262569Simp/* BRDGGIFFLAGS, BRDGSIFFLAGS */ 134262569Simp#define IFBIF_LEARNING 0x0001 /* if can learn */ 135262569Simp#define IFBIF_DISCOVER 0x0002 /* if sends packets w/ unknown dest. */ 136262569Simp#define IFBIF_STP 0x0004 /* if participates in spanning tree */ 137262569Simp#define IFBIF_SPAN 0x0008 /* if is a span port */ 138262569Simp#define IFBIF_STICKY 0x0010 /* if learned addresses stick */ 139262569Simp#define IFBIF_BSTP_EDGE 0x0020 /* member stp edge port */ 140262569Simp#define IFBIF_BSTP_AUTOEDGE 0x0040 /* member stp autoedge enabled */ 141262569Simp#define IFBIF_BSTP_P2P 0x0080 /* member stp p2p */ 142262569Simp#define IFBIF_BSTP_AUTOP2P 0x0100 /* member stp autop2p enabled */ 143262569Simp#define IFBIF_BSTP_ADMEDGE 0x0200 /* member stp admin edge enabled */ 144262569Simp#define IFBIF_BSTP_ADMCOST 0x0400 /* member stp admin path cost */ 145262569Simp 146262569Simp#define IFBIFBITS "\020\001LEARNING\002DISCOVER\003STP\004SPAN" \ 147262569Simp "\005STICKY\006EDGE\007AUTOEDGE\010P2P\011AUTOP2P" 148273712Sian#define IFBIFMASK ~(IFBIF_BSTP_EDGE|IFBIF_BSTP_AUTOEDGE|IFBIF_BSTP_P2P| \ 149273712Sian IFBIF_BSTP_AUTOP2P|IFBIF_BSTP_ADMEDGE| \ 150262569Simp IFBIF_BSTP_ADMCOST) /* not saved */ 151262569Simp 152/* BRDGFLUSH */ 153#define IFBF_FLUSHDYN 0x00 /* flush learned addresses only */ 154#define IFBF_FLUSHALL 0x01 /* flush all addresses */ 155 156/* 157 * Interface list structure. 158 */ 159struct ifbifconf { 160 uint32_t ifbic_len; /* buffer size */ 161 union { 162 caddr_t ifbicu_buf; 163 struct ifbreq *ifbicu_req; 164 } ifbic_ifbicu; 165#define ifbic_buf ifbic_ifbicu.ifbicu_buf 166#define ifbic_req ifbic_ifbicu.ifbicu_req 167}; 168 169/* 170 * Bridge address request. 171 */ 172struct ifbareq { 173 char ifba_ifsname[IFNAMSIZ]; /* member if name */ 174 unsigned long ifba_expire; /* address expire time */ 175 uint8_t ifba_flags; /* address flags */ 176 uint8_t ifba_dst[ETHER_ADDR_LEN];/* destination address */ 177}; 178 179#define IFBAF_TYPEMASK 0x03 /* address type mask */ 180#define IFBAF_DYNAMIC 0x00 /* dynamically learned address */ 181#define IFBAF_STATIC 0x01 /* static address */ 182#define IFBAF_STICKY 0x02 /* sticky address */ 183 184#define IFBAFBITS "\020\1STATIC\2STICKY" 185 186/* 187 * Address list structure. 188 */ 189struct ifbaconf { 190 uint32_t ifbac_len; /* buffer size */ 191 union { 192 caddr_t ifbacu_buf; 193 struct ifbareq *ifbacu_req; 194 } ifbac_ifbacu; 195#define ifbac_buf ifbac_ifbacu.ifbacu_buf 196#define ifbac_req ifbac_ifbacu.ifbacu_req 197}; 198 199/* 200 * Bridge parameter structure. 201 */ 202struct ifbrparam { 203 union { 204 uint32_t ifbrpu_int32; 205 uint16_t ifbrpu_int16; 206 uint8_t ifbrpu_int8; 207 } ifbrp_ifbrpu; 208}; 209#define ifbrp_csize ifbrp_ifbrpu.ifbrpu_int32 /* cache size */ 210#define ifbrp_ctime ifbrp_ifbrpu.ifbrpu_int32 /* cache time (sec) */ 211#define ifbrp_prio ifbrp_ifbrpu.ifbrpu_int16 /* bridge priority */ 212#define ifbrp_proto ifbrp_ifbrpu.ifbrpu_int8 /* bridge protocol */ 213#define ifbrp_txhc ifbrp_ifbrpu.ifbrpu_int8 /* bpdu tx holdcount */ 214#define ifbrp_hellotime ifbrp_ifbrpu.ifbrpu_int8 /* hello time (sec) */ 215#define ifbrp_fwddelay ifbrp_ifbrpu.ifbrpu_int8 /* fwd time (sec) */ 216#define ifbrp_maxage ifbrp_ifbrpu.ifbrpu_int8 /* max age (sec) */ 217#define ifbrp_cexceeded ifbrp_ifbrpu.ifbrpu_int32 /* # of cache dropped 218 * adresses */ 219/* 220 * Bridge current operational parameters structure. 221 */ 222struct ifbropreq { 223 uint8_t ifbop_holdcount; 224 uint8_t ifbop_maxage; 225 uint8_t ifbop_hellotime; 226 uint8_t ifbop_fwddelay; 227 uint8_t ifbop_protocol; 228 uint16_t ifbop_priority; 229 uint16_t ifbop_root_port; 230 uint32_t ifbop_root_path_cost; 231 uint64_t ifbop_bridgeid; 232 uint64_t ifbop_designated_root; 233 uint64_t ifbop_designated_bridge; 234 struct timeval ifbop_last_tc_time; 235}; 236 237/* 238 * Bridge member operational STP params structure. 239 */ 240struct ifbpstpreq { 241 uint8_t ifbp_portno; /* bp STP port number */ 242 uint32_t ifbp_fwd_trans; /* bp STP fwd transitions */ 243 uint32_t ifbp_design_cost; /* bp STP designated cost */ 244 uint32_t ifbp_design_port; /* bp STP designated port */ 245 uint64_t ifbp_design_bridge; /* bp STP designated bridge */ 246 uint64_t ifbp_design_root; /* bp STP designated root */ 247}; 248 249/* 250 * Bridge STP ports list structure. 251 */ 252struct ifbpstpconf { 253 uint32_t ifbpstp_len; /* buffer size */ 254 union { 255 caddr_t ifbpstpu_buf; 256 struct ifbpstpreq *ifbpstpu_req; 257 } ifbpstp_ifbpstpu; 258#define ifbpstp_buf ifbpstp_ifbpstpu.ifbpstpu_buf 259#define ifbpstp_req ifbpstp_ifbpstpu.ifbpstpu_req 260}; 261 262#ifdef _KERNEL 263 264#define BRIDGE_LOCK_INIT(_sc) do { \ 265 mtx_init(&(_sc)->sc_mtx, "if_bridge", NULL, MTX_DEF); \ 266 cv_init(&(_sc)->sc_cv, "if_bridge_cv"); \ 267} while (0) 268#define BRIDGE_LOCK_DESTROY(_sc) do { \ 269 mtx_destroy(&(_sc)->sc_mtx); \ 270 cv_destroy(&(_sc)->sc_cv); \ 271} while (0) 272#define BRIDGE_LOCK(_sc) mtx_lock(&(_sc)->sc_mtx) 273#define BRIDGE_UNLOCK(_sc) mtx_unlock(&(_sc)->sc_mtx) 274#define BRIDGE_LOCKED(_sc) mtx_owned(&(_sc)->sc_mtx) 275#define BRIDGE_LOCK_ASSERT(_sc) mtx_assert(&(_sc)->sc_mtx, MA_OWNED) 276#define BRIDGE_LOCK2REF(_sc, _err) do { \ 277 mtx_assert(&(_sc)->sc_mtx, MA_OWNED); \ 278 if ((_sc)->sc_iflist_xcnt > 0) \ 279 (_err) = EBUSY; \ 280 else \ 281 (_sc)->sc_iflist_ref++; \ 282 mtx_unlock(&(_sc)->sc_mtx); \ 283} while (0) 284#define BRIDGE_UNREF(_sc) do { \ 285 mtx_lock(&(_sc)->sc_mtx); \ 286 (_sc)->sc_iflist_ref--; \ 287 if (((_sc)->sc_iflist_xcnt > 0) && ((_sc)->sc_iflist_ref == 0)) \ 288 cv_broadcast(&(_sc)->sc_cv); \ 289 mtx_unlock(&(_sc)->sc_mtx); \ 290} while (0) 291#define BRIDGE_XLOCK(_sc) do { \ 292 mtx_assert(&(_sc)->sc_mtx, MA_OWNED); \ 293 (_sc)->sc_iflist_xcnt++; \ 294 while ((_sc)->sc_iflist_ref > 0) \ 295 cv_wait(&(_sc)->sc_cv, &(_sc)->sc_mtx); \ 296} while (0) 297#define BRIDGE_XDROP(_sc) do { \ 298 mtx_assert(&(_sc)->sc_mtx, MA_OWNED); \ 299 (_sc)->sc_iflist_xcnt--; \ 300} while (0) 301 302#define BRIDGE_INPUT(_ifp, _m) do { \ 303 KASSERT(bridge_input_p != NULL, \ 304 ("%s: if_bridge not loaded!", __func__)); \ 305 _m = (*bridge_input_p)(_ifp, _m); \ 306 if (_m != NULL) \ 307 _ifp = _m->m_pkthdr.rcvif; \ 308} while (0) 309 310#define BRIDGE_OUTPUT(_ifp, _m, _err) do { \ 311 KASSERT(bridge_output_p != NULL, \ 312 ("%s: if_bridge not loaded!", __func__)); \ 313 _err = (*bridge_output_p)(_ifp, _m, NULL, NULL); \ 314} while (0) 315 316extern struct mbuf *(*bridge_input_p)(struct ifnet *, struct mbuf *); 317extern int (*bridge_output_p)(struct ifnet *, struct mbuf *, 318 struct sockaddr *, struct rtentry *); 319extern void (*bridge_dn_p)(struct mbuf *, struct ifnet *); 320 321#endif /* _KERNEL */ 322