if_bridgevar.h revision 1.1
1 /* $NetBSD: if_bridgevar.h,v 1.1 2001/08/17 21:37:28 thorpej 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) */ 105 106 /* 107 * Generic bridge control request. 108 */ 109 struct ifbreq { 110 char ifbr_ifsname[IFNAMSIZ]; /* member if name */ 111 uint32_t ifbr_ifsflags; /* member if flags */ 112 uint8_t ifbr_state; /* member if STP state */ 113 uint8_t ifbr_priority; /* member if STP priority */ 114 uint8_t ifbr_portno; /* member if port number */ 115 }; 116 117 /* BRDGGIFFLAGS, BRDGSIFFLAGS */ 118 #define IFBIF_LEARNING 0x01 /* if can learn */ 119 #define IFBIF_DISCOVER 0x02 /* if sends packets w/ unknown dest. */ 120 #define IFBIF_STP 0x04 /* if participates in spanning tree */ 121 122 #define IFBIFBITS "\020\1LEARNING\2DISCOVER\3STP" 123 124 /* BRDGFLUSH */ 125 #define IFBF_FLUSHDYN 0x00 /* flush learned addresses only */ 126 #define IFBF_FLUSHALL 0x01 /* flush all addresses */ 127 128 /* STP port states */ 129 #define BSTP_IFSTATE_DISABLED 0 130 #define BSTP_IFSTATE_LISTENING 1 131 #define BSTP_IFSTATE_LEARNING 2 132 #define BSTP_IFSTATE_FORWARDING 3 133 #define BSTP_IFSTATE_BLOCKING 4 134 135 /* 136 * Interface list structure. 137 */ 138 struct ifbifconf { 139 uint32_t ifbic_len; /* buffer size */ 140 union { 141 caddr_t ifbicu_buf; 142 struct ifbreq *ifbicu_req; 143 } ifbic_ifbicu; 144 #define ifbic_buf ifbic_ifbicu.ifbicu_buf 145 #define ifbic_req ifbic_ifbicu.ifbicu_req 146 }; 147 148 /* 149 * Bridge address request. 150 */ 151 struct ifbareq { 152 char ifba_ifsname[IFNAMSIZ]; /* member if name */ 153 unsigned long ifba_expire; /* address expire time */ 154 uint8_t ifba_flags; /* address flags */ 155 uint8_t ifba_dst[ETHER_ADDR_LEN];/* destination address */ 156 }; 157 158 #define IFBAF_TYPEMASK 0x03 /* address type mask */ 159 #define IFBAF_DYNAMIC 0x00 /* dynamically learned address */ 160 #define IFBAF_STATIC 0x01 /* static address */ 161 162 #define IFBAFBITS "\020\1STATIC" 163 164 /* 165 * Address list structure. 166 */ 167 struct ifbaconf { 168 uint32_t ifbac_len; /* buffer size */ 169 union { 170 caddr_t ifbacu_buf; 171 struct ifbareq *ifbacu_req; 172 } ifbac_ifbacu; 173 #define ifbac_buf ifbac_ifbacu.ifbacu_buf 174 #define ifbac_req ifbac_ifbacu.ifbacu_req 175 }; 176 177 /* 178 * Bridge parameter structure. 179 */ 180 struct ifbrparam { 181 union { 182 uint32_t ifbrpu_int32; 183 uint16_t ifbrpu_int16; 184 uint8_t ifbrpu_int8; 185 } ifbrp_ifbrpu; 186 }; 187 #define ifbrp_csize ifbrp_ifbrpu.ifbrpu_int32 /* cache size */ 188 #define ifbrp_ctime ifbrp_ifbrpu.ifbrpu_int32 /* cache time (sec) */ 189 #define ifbrp_prio ifbrp_ifbrpu.ifbrpu_int16 /* bridge priority */ 190 #define ifbrp_hellotime ifbrp_ifbrpu.ifbrpu_int8 /* hello time (sec) */ 191 #define ifbrp_fwddelay ifbrp_ifbrpu.ifbrpu_int8 /* fwd time (sec) */ 192 #define ifbrp_maxage ifbrp_ifbrpu.ifbrpu_int8 /* max age (sec) */ 193 194 #ifdef _KERNEL 195 /* 196 * Timekeeping structure used in spanning tree code. 197 */ 198 struct bridge_timer { 199 uint16_t active; 200 uint16_t value; 201 }; 202 203 struct bstp_config_unit { 204 uint64_t cu_rootid; 205 uint64_t cu_bridge_id; 206 uint32_t cu_root_path_cost; 207 uint16_t cu_message_age; 208 uint16_t cu_max_age; 209 uint16_t cu_hello_time; 210 uint16_t cu_forward_delay; 211 uint16_t cu_port_id; 212 uint8_t cu_message_type; 213 uint8_t cu_topology_change_acknowledgment; 214 uint8_t cu_topology_change; 215 }; 216 217 struct bstp_tcn_unit { 218 uint8_t tu_message_type; 219 }; 220 221 /* 222 * Bridge interface list entry. 223 */ 224 struct bridge_iflist { 225 LIST_ENTRY(bridge_iflist) bif_next; 226 uint64_t bif_designated_root; 227 uint64_t bif_designated_bridge; 228 uint32_t bif_path_cost; 229 uint32_t bif_designated_cost; 230 struct bridge_timer bif_hold_timer; 231 struct bridge_timer bif_message_age_timer; 232 struct bridge_timer bif_forward_delay_timer; 233 struct bstp_config_unit bif_config_bpdu; 234 uint16_t bif_port_id; 235 uint16_t bif_designated_port; 236 uint8_t bif_state; 237 uint8_t bif_topology_change_acknowledge; 238 uint8_t bif_config_pending; 239 uint8_t bif_change_detection_enabled; 240 uint8_t bif_priority; 241 struct ifnet *bif_ifp; /* member if */ 242 uint32_t bif_flags; /* member if flags */ 243 }; 244 245 /* 246 * Bridge route node. 247 */ 248 struct bridge_rtnode { 249 LIST_ENTRY(bridge_rtnode) brt_hash; /* hash table linkage */ 250 LIST_ENTRY(bridge_rtnode) brt_list; /* list linkage */ 251 struct ifnet *brt_ifp; /* destination if */ 252 unsigned long brt_expire; /* expiration time */ 253 uint8_t brt_flags; /* address flags */ 254 uint8_t brt_addr[ETHER_ADDR_LEN]; 255 }; 256 257 /* 258 * Software state for each bridge. 259 */ 260 struct bridge_softc { 261 struct ifnet sc_if; 262 LIST_ENTRY(bridge_softc) sc_list; 263 uint64_t sc_designated_root; 264 uint64_t sc_bridge_id; 265 struct bridge_iflist *sc_root_port; 266 uint32_t sc_root_path_cost; 267 uint16_t sc_max_age; 268 uint16_t sc_hello_time; 269 uint16_t sc_forward_delay; 270 uint16_t sc_bridge_max_age; 271 uint16_t sc_bridge_hello_time; 272 uint16_t sc_bridge_forward_delay; 273 uint16_t sc_topology_change_time; 274 uint16_t sc_hold_time; 275 uint16_t sc_bridge_priority; 276 uint8_t sc_topology_change_detected; 277 uint8_t sc_topology_change; 278 struct bridge_timer sc_hello_timer; 279 struct bridge_timer sc_topology_change_timer; 280 struct bridge_timer sc_tcn_timer; 281 uint32_t sc_brtmax; /* max # of addresses */ 282 uint32_t sc_brtcnt; /* cur. # of addresses */ 283 uint32_t sc_brttimeout; /* rt timeout in seconds */ 284 struct callout sc_brcallout; /* bridge callout */ 285 struct callout sc_bstpcallout; /* STP callout */ 286 LIST_HEAD(, bridge_iflist) sc_iflist; /* member interface list */ 287 LIST_HEAD(, bridge_rtnode) *sc_rthash; /* our forwarding table */ 288 LIST_HEAD(, bridge_rtnode) sc_rtlist; /* list version of above */ 289 uint32_t sc_rthash_key; /* key for hash */ 290 }; 291 292 extern const uint8_t bstp_etheraddr[]; 293 294 void bridge_ifdetach(struct ifnet *ifp); 295 296 int bridge_output(struct ifnet *ifp, struct mbuf *, struct sockaddr *, 297 struct rtentry *); 298 struct mbuf *bridge_input(struct ifnet *, struct mbuf *); 299 300 void bstp_initialization(struct bridge_softc *); 301 void bstp_stop(struct bridge_softc *); 302 struct mbuf *bstp_input(struct ifnet *, struct mbuf *); 303 304 void bridge_enqueue(struct bridge_softc *, struct ifnet *, struct mbuf *); 305 306 #endif /* _KERNEL */ 307
Indexes created Wed Oct 15 16:09:53 GMT 2025