if_bridgevar.h revision 1.4
1 /* $NetBSD: if_bridgevar.h,v 1.4 2003/07/08 07:13:50 itojun Exp $ */ 2 3 /* 4 * Copyright 2001 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Jason R. Thorpe for Wasabi Systems, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 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 23 * written permission. 24 * 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. 36 */ 37 38 /* 39 * Copyright (c) 1999, 2000 Jason L. Wright (jason (at) thought.net) 40 * All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 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. 55 * 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. 67 * 68 * OpenBSD: if_bridge.h,v 1.14 2001/03/22 03:48:29 jason Exp 69 */ 70 71 /* 72 * Data structure and control definitions for bridge interfaces. 73 */ 74 75 #include <sys/callout.h> 76 #include <sys/queue.h> 77 78 /* 79 * Commands used in the SIOCSDRVSPEC ioctl. Note the lookup of the 80 * bridge interface itself is keyed off the ifdrv structure. 81 */ 82 #define BRDGADD 0 /* add bridge member (ifbreq) */ 83 #define BRDGDEL 1 /* delete bridge member (ifbreq) */ 84 #define BRDGGIFFLGS 2 /* get member if flags (ifbreq) */ 85 #define BRDGSIFFLGS 3 /* set member if flags (ifbreq) */ 86 #define BRDGSCACHE 4 /* set cache size (ifbrparam) */ 87 #define BRDGGCACHE 5 /* get cache size (ifbrparam) */ 88 #define BRDGGIFS 6 /* get member list (ifbifconf) */ 89 #define BRDGRTS 7 /* get address list (ifbaconf) */ 90 #define BRDGSADDR 8 /* set static address (ifbareq) */ 91 #define BRDGSTO 9 /* set cache timeout (ifbrparam) */ 92 #define BRDGGTO 10 /* get cache timeout (ifbrparam) */ 93 #define BRDGDADDR 11 /* delete address (ifbareq) */ 94 #define BRDGFLUSH 12 /* flush address cache (ifbreq) */ 95 96 #define BRDGGPRI 13 /* get priority (ifbrparam) */ 97 #define BRDGSPRI 14 /* set priority (ifbrparam) */ 98 #define BRDGGHT 15 /* get hello time (ifbrparam) */ 99 #define BRDGSHT 16 /* set hello time (ifbrparam) */ 100 #define BRDGGFD 17 /* get forward delay (ifbrparam) */ 101 #define BRDGSFD 18 /* set forward delay (ifbrparam) */ 102 #define BRDGGMA 19 /* get max age (ifbrparam) */ 103 #define BRDGSMA 20 /* set max age (ifbrparam) */ 104 #define BRDGSIFPRIO 21 /* set if priority (ifbreq) */ 105 #define BRDGSIFCOST 22 /* set if path cost (ifbreq) */ 106 #define BRDGGFILT 23 /* get filter flags (ifbrparam) */ 107 #define BRDGSFILT 24 /* set filter flags (ifbrparam) */ 108 109 /* 110 * Generic bridge control request. 111 */ 112 struct ifbreq { 113 char ifbr_ifsname[IFNAMSIZ]; /* member if name */ 114 uint32_t ifbr_ifsflags; /* member if flags */ 115 uint8_t ifbr_state; /* member if STP state */ 116 uint8_t ifbr_priority; /* member if STP priority */ 117 uint8_t ifbr_path_cost; /* member if STP cost */ 118 uint8_t ifbr_portno; /* member if port number */ 119 }; 120 121 /* BRDGGIFFLAGS, BRDGSIFFLAGS */ 122 #define IFBIF_LEARNING 0x01 /* if can learn */ 123 #define IFBIF_DISCOVER 0x02 /* if sends packets w/ unknown dest. */ 124 #define IFBIF_STP 0x04 /* if participates in spanning tree */ 125 126 #define IFBIFBITS "\020\1LEARNING\2DISCOVER\3STP" 127 128 /* BRDGFLUSH */ 129 #define IFBF_FLUSHDYN 0x00 /* flush learned addresses only */ 130 #define IFBF_FLUSHALL 0x01 /* flush all addresses */ 131 132 /* BRDGSFILT */ 133 #define IFBF_FILT_USEIPF 0x00000001 /* enable ipf on bridge */ 134 #define IFBF_FILT_MASK 0x00000001 /* mask of valid values */ 135 136 /* STP port states */ 137 #define BSTP_IFSTATE_DISABLED 0 138 #define BSTP_IFSTATE_LISTENING 1 139 #define BSTP_IFSTATE_LEARNING 2 140 #define BSTP_IFSTATE_FORWARDING 3 141 #define BSTP_IFSTATE_BLOCKING 4 142 143 /* 144 * Interface list structure. 145 */ 146 struct ifbifconf { 147 uint32_t ifbic_len; /* buffer size */ 148 union { 149 caddr_t ifbicu_buf; 150 struct ifbreq *ifbicu_req; 151 } ifbic_ifbicu; 152 #define ifbic_buf ifbic_ifbicu.ifbicu_buf 153 #define ifbic_req ifbic_ifbicu.ifbicu_req 154 }; 155 156 /* 157 * Bridge address request. 158 */ 159 struct ifbareq { 160 char ifba_ifsname[IFNAMSIZ]; /* member if name */ 161 unsigned long ifba_expire; /* address expire time */ 162 uint8_t ifba_flags; /* address flags */ 163 uint8_t ifba_dst[ETHER_ADDR_LEN];/* destination address */ 164 }; 165 166 #define IFBAF_TYPEMASK 0x03 /* address type mask */ 167 #define IFBAF_DYNAMIC 0x00 /* dynamically learned address */ 168 #define IFBAF_STATIC 0x01 /* static address */ 169 170 #define IFBAFBITS "\020\1STATIC" 171 172 /* 173 * Address list structure. 174 */ 175 struct ifbaconf { 176 uint32_t ifbac_len; /* buffer size */ 177 union { 178 caddr_t ifbacu_buf; 179 struct ifbareq *ifbacu_req; 180 } ifbac_ifbacu; 181 #define ifbac_buf ifbac_ifbacu.ifbacu_buf 182 #define ifbac_req ifbac_ifbacu.ifbacu_req 183 }; 184 185 /* 186 * Bridge parameter structure. 187 */ 188 struct ifbrparam { 189 union { 190 uint32_t ifbrpu_int32; 191 uint16_t ifbrpu_int16; 192 uint8_t ifbrpu_int8; 193 } ifbrp_ifbrpu; 194 }; 195 #define ifbrp_csize ifbrp_ifbrpu.ifbrpu_int32 /* cache size */ 196 #define ifbrp_ctime ifbrp_ifbrpu.ifbrpu_int32 /* cache time (sec) */ 197 #define ifbrp_prio ifbrp_ifbrpu.ifbrpu_int16 /* bridge priority */ 198 #define ifbrp_hellotime ifbrp_ifbrpu.ifbrpu_int8 /* hello time (sec) */ 199 #define ifbrp_fwddelay ifbrp_ifbrpu.ifbrpu_int8 /* fwd time (sec) */ 200 #define ifbrp_maxage ifbrp_ifbrpu.ifbrpu_int8 /* max age (sec) */ 201 #define ifbrp_filter ifbrp_ifbrpu.ifbrpu_int32 /* filtering flags */ 202 203 #ifdef _KERNEL 204 /* 205 * Timekeeping structure used in spanning tree code. 206 */ 207 struct bridge_timer { 208 uint16_t active; 209 uint16_t value; 210 }; 211 212 struct bstp_config_unit { 213 uint64_t cu_rootid; 214 uint64_t cu_bridge_id; 215 uint32_t cu_root_path_cost; 216 uint16_t cu_message_age; 217 uint16_t cu_max_age; 218 uint16_t cu_hello_time; 219 uint16_t cu_forward_delay; 220 uint16_t cu_port_id; 221 uint8_t cu_message_type; 222 uint8_t cu_topology_change_acknowledgment; 223 uint8_t cu_topology_change; 224 }; 225 226 struct bstp_tcn_unit { 227 uint8_t tu_message_type; 228 }; 229 230 /* 231 * Bridge interface list entry. 232 */ 233 struct bridge_iflist { 234 LIST_ENTRY(bridge_iflist) bif_next; 235 uint64_t bif_designated_root; 236 uint64_t bif_designated_bridge; 237 uint32_t bif_path_cost; 238 uint32_t bif_designated_cost; 239 struct bridge_timer bif_hold_timer; 240 struct bridge_timer bif_message_age_timer; 241 struct bridge_timer bif_forward_delay_timer; 242 struct bstp_config_unit bif_config_bpdu; 243 uint16_t bif_port_id; 244 uint16_t bif_designated_port; 245 uint8_t bif_state; 246 uint8_t bif_topology_change_acknowledge; 247 uint8_t bif_config_pending; 248 uint8_t bif_change_detection_enabled; 249 uint8_t bif_priority; 250 struct ifnet *bif_ifp; /* member if */ 251 uint32_t bif_flags; /* member if flags */ 252 }; 253 254 /* 255 * Bridge route node. 256 */ 257 struct bridge_rtnode { 258 LIST_ENTRY(bridge_rtnode) brt_hash; /* hash table linkage */ 259 LIST_ENTRY(bridge_rtnode) brt_list; /* list linkage */ 260 struct ifnet *brt_ifp; /* destination if */ 261 unsigned long brt_expire; /* expiration time */ 262 uint8_t brt_flags; /* address flags */ 263 uint8_t brt_addr[ETHER_ADDR_LEN]; 264 }; 265 266 /* 267 * Software state for each bridge. 268 */ 269 struct bridge_softc { 270 struct ifnet sc_if; 271 LIST_ENTRY(bridge_softc) sc_list; 272 uint64_t sc_designated_root; 273 uint64_t sc_bridge_id; 274 struct bridge_iflist *sc_root_port; 275 uint32_t sc_root_path_cost; 276 uint16_t sc_max_age; 277 uint16_t sc_hello_time; 278 uint16_t sc_forward_delay; 279 uint16_t sc_bridge_max_age; 280 uint16_t sc_bridge_hello_time; 281 uint16_t sc_bridge_forward_delay; 282 uint16_t sc_topology_change_time; 283 uint16_t sc_hold_time; 284 uint16_t sc_bridge_priority; 285 uint8_t sc_topology_change_detected; 286 uint8_t sc_topology_change; 287 struct bridge_timer sc_hello_timer; 288 struct bridge_timer sc_topology_change_timer; 289 struct bridge_timer sc_tcn_timer; 290 uint32_t sc_brtmax; /* max # of addresses */ 291 uint32_t sc_brtcnt; /* cur. # of addresses */ 292 uint32_t sc_brttimeout; /* rt timeout in seconds */ 293 struct callout sc_brcallout; /* bridge callout */ 294 struct callout sc_bstpcallout; /* STP callout */ 295 LIST_HEAD(, bridge_iflist) sc_iflist; /* member interface list */ 296 LIST_HEAD(, bridge_rtnode) *sc_rthash; /* our forwarding table */ 297 LIST_HEAD(, bridge_rtnode) sc_rtlist; /* list version of above */ 298 uint32_t sc_rthash_key; /* key for hash */ 299 uint32_t sc_filter_flags; /* ipf and flags */ 300 }; 301 302 extern const uint8_t bstp_etheraddr[]; 303 304 void bridge_ifdetach(struct ifnet *); 305 306 int bridge_output(struct ifnet *, struct mbuf *, struct sockaddr *, 307 struct rtentry *); 308 struct mbuf *bridge_input(struct ifnet *, struct mbuf *); 309 310 void bstp_initialization(struct bridge_softc *); 311 void bstp_stop(struct bridge_softc *); 312 struct mbuf *bstp_input(struct ifnet *, struct mbuf *); 313 314 void bridge_enqueue(struct bridge_softc *, struct ifnet *, struct mbuf *); 315 316 #endif /* _KERNEL */ 317
Indexes created Tue Sep 23 23:09:58 GMT 2025