1 /* $NetBSD: if_bridgevar.h,v 1.4 2003/07/08 07:13:50 itojun Exp $ */
4 * Copyright 2001 Wasabi Systems, Inc.
7 * Written by Jason R. Thorpe for Wasabi Systems, Inc.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
39 * Copyright (c) 1999, 2000 Jason L. Wright (jason@thought.net)
40 * All rights reserved.
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed by Jason L. Wright
53 * 4. The name of the author may not be used to endorse or promote products
54 * derived from this software without specific prior written permission.
56 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
57 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
58 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
59 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
60 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
61 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
62 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
63 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
64 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
65 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
66 * POSSIBILITY OF SUCH DAMAGE.
68 * OpenBSD: if_bridge.h,v 1.14 2001/03/22 03:48:29 jason Exp
74 * Data structure and control definitions for bridge interfaces.
77 #include <sys/callout.h>
78 #include <sys/queue.h>
79 #include <sys/condvar.h>
82 * Commands used in the SIOCSDRVSPEC ioctl. Note the lookup of the
83 * bridge interface itself is keyed off the ifdrv structure.
85 #define BRDGADD 0 /* add bridge member (ifbreq) */
86 #define BRDGDEL 1 /* delete bridge member (ifbreq) */
87 #define BRDGGIFFLGS 2 /* get member if flags (ifbreq) */
88 #define BRDGSIFFLGS 3 /* set member if flags (ifbreq) */
89 #define BRDGSCACHE 4 /* set cache size (ifbrparam) */
90 #define BRDGGCACHE 5 /* get cache size (ifbrparam) */
91 #define BRDGGIFS 6 /* get member list (ifbifconf) */
92 #define BRDGRTS 7 /* get address list (ifbaconf) */
93 #define BRDGSADDR 8 /* set static address (ifbareq) */
94 #define BRDGSTO 9 /* set cache timeout (ifbrparam) */
95 #define BRDGGTO 10 /* get cache timeout (ifbrparam) */
96 #define BRDGDADDR 11 /* delete address (ifbareq) */
97 #define BRDGFLUSH 12 /* flush address cache (ifbreq) */
99 #define BRDGGPRI 13 /* get priority (ifbrparam) */
100 #define BRDGSPRI 14 /* set priority (ifbrparam) */
101 #define BRDGGHT 15 /* get hello time (ifbrparam) */
102 #define BRDGSHT 16 /* set hello time (ifbrparam) */
103 #define BRDGGFD 17 /* get forward delay (ifbrparam) */
104 #define BRDGSFD 18 /* set forward delay (ifbrparam) */
105 #define BRDGGMA 19 /* get max age (ifbrparam) */
106 #define BRDGSMA 20 /* set max age (ifbrparam) */
107 #define BRDGSIFPRIO 21 /* set if priority (ifbreq) */
108 #define BRDGSIFCOST 22 /* set if path cost (ifbreq) */
109 #define BRDGADDS 23 /* add bridge span member (ifbreq) */
110 #define BRDGDELS 24 /* delete bridge span member (ifbreq) */
111 #define BRDGPARAM 25 /* get bridge STP params (ifbropreq) */
112 #define BRDGGRTE 26 /* get cache drops (ifbrparam) */
113 #define BRDGGIFSSTP 27 /* get member STP params list
115 #define BRDGSPROTO 28 /* set protocol (ifbrparam) */
116 #define BRDGSTXHC 29 /* set tx hold count (ifbrparam) */
119 * Generic bridge control request.
122 char ifbr_ifsname[IFNAMSIZ]; /* member if name */
123 uint32_t ifbr_ifsflags; /* member if flags */
124 uint32_t ifbr_stpflags; /* member if STP flags */
125 uint32_t ifbr_path_cost; /* member if STP cost */
126 uint8_t ifbr_portno; /* member if port number */
127 uint8_t ifbr_priority; /* member if STP priority */
128 uint8_t ifbr_proto; /* member if STP protocol */
129 uint8_t ifbr_role; /* member if STP role */
130 uint8_t ifbr_state; /* member if STP state */
133 /* BRDGGIFFLAGS, BRDGSIFFLAGS */
134 #define IFBIF_LEARNING 0x0001 /* if can learn */
135 #define IFBIF_DISCOVER 0x0002 /* if sends packets w/ unknown dest. */
136 #define IFBIF_STP 0x0004 /* if participates in spanning tree */
137 #define IFBIF_SPAN 0x0008 /* if is a span port */
138 #define IFBIF_STICKY 0x0010 /* if learned addresses stick */
139 #define IFBIF_BSTP_EDGE 0x0020 /* member stp edge port */
140 #define IFBIF_BSTP_AUTOEDGE 0x0040 /* member stp autoedge enabled */
141 #define IFBIF_BSTP_PTP 0x0080 /* member stp point to point */
142 #define IFBIF_BSTP_AUTOPTP 0x0100 /* member stp autoptp enabled */
143 #define IFBIF_BSTP_ADMEDGE 0x0200 /* member stp admin edge enabled */
144 #define IFBIF_BSTP_ADMCOST 0x0400 /* member stp admin path cost */
146 #define IFBIFBITS "\020\001LEARNING\002DISCOVER\003STP\004SPAN" \
147 "\005STICKY\006EDGE\007AUTOEDGE\010PTP\011AUTOPTP"
148 #define IFBIFMASK ~(IFBIF_BSTP_EDGE|IFBIF_BSTP_AUTOEDGE|IFBIF_BSTP_PTP| \
149 IFBIF_BSTP_AUTOPTP|IFBIF_BSTP_ADMEDGE| \
150 IFBIF_BSTP_ADMCOST) /* not saved */
153 #define IFBF_FLUSHDYN 0x00 /* flush learned addresses only */
154 #define IFBF_FLUSHALL 0x01 /* flush all addresses */
157 * Interface list structure.
160 uint32_t ifbic_len; /* buffer size */
163 struct ifbreq *ifbicu_req;
165 #define ifbic_buf ifbic_ifbicu.ifbicu_buf
166 #define ifbic_req ifbic_ifbicu.ifbicu_req
170 * Bridge address request.
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 */
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 */
184 #define IFBAFBITS "\020\1STATIC\2STICKY"
187 * Address list structure.
190 uint32_t ifbac_len; /* buffer size */
193 struct ifbareq *ifbacu_req;
195 #define ifbac_buf ifbac_ifbacu.ifbacu_buf
196 #define ifbac_req ifbac_ifbacu.ifbacu_req
200 * Bridge parameter structure.
204 uint32_t ifbrpu_int32;
205 uint16_t ifbrpu_int16;
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
220 * Bridge current operational parameters structure.
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;
238 * Bridge member operational STP params structure.
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 */
250 * Bridge STP ports list structure.
253 uint32_t ifbpstp_len; /* buffer size */
255 caddr_t ifbpstpu_buf;
256 struct ifbpstpreq *ifbpstpu_req;
258 #define ifbpstp_buf ifbpstp_ifbpstpu.ifbpstpu_buf
259 #define ifbpstp_req ifbpstp_ifbpstpu.ifbpstpu_req
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"); \
268 #define BRIDGE_LOCK_DESTROY(_sc) do { \
269 mtx_destroy(&(_sc)->sc_mtx); \
270 cv_destroy(&(_sc)->sc_cv); \
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) \
281 (_sc)->sc_iflist_ref++; \
282 mtx_unlock(&(_sc)->sc_mtx); \
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); \
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); \
297 #define BRIDGE_XDROP(_sc) do { \
298 mtx_assert(&(_sc)->sc_mtx, MA_OWNED); \
299 (_sc)->sc_iflist_xcnt--; \
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); \
307 _ifp = _m->m_pkthdr.rcvif; \
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); \
316 extern struct mbuf *(*bridge_input_p)(struct ifnet *, struct mbuf *);
317 extern int (*bridge_output_p)(struct ifnet *, struct mbuf *,
318 struct sockaddr *, struct rtentry *);
319 extern void (*bridge_dn_p)(struct mbuf *, struct ifnet *);