paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This is an implementation of draft-katz-yeung-ospf-traffic-06.txt |
| 3 | * Copyright (C) 2001 KDD R&D Laboratories, Inc. |
| 4 | * http://www.kddlabs.co.jp/ |
| 5 | * |
| 6 | * This file is part of GNU Zebra. |
| 7 | * |
| 8 | * GNU Zebra is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the |
| 10 | * Free Software Foundation; either version 2, or (at your option) any |
| 11 | * later version. |
| 12 | * |
| 13 | * GNU Zebra is distributed in the hope that it will be useful, but |
| 14 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 16 | * General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with GNU Zebra; see the file COPYING. If not, write to the Free |
| 20 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA |
| 21 | * 02111-1307, USA. |
| 22 | */ |
| 23 | |
| 24 | /***** MTYPE definition is not reflected to "memory.h" yet. *****/ |
| 25 | #define MTYPE_OSPF_MPLS_TE_LINKPARAMS 0 |
| 26 | |
| 27 | #include <zebra.h> |
| 28 | |
| 29 | #ifdef HAVE_OSPF_TE |
| 30 | #ifndef HAVE_OPAQUE_LSA |
| 31 | #error "Wrong configure option" |
| 32 | #endif /* HAVE_OPAQUE_LSA */ |
| 33 | |
| 34 | #include "linklist.h" |
| 35 | #include "prefix.h" |
| 36 | #include "if.h" |
| 37 | #include "table.h" |
| 38 | #include "memory.h" |
| 39 | #include "command.h" |
| 40 | #include "vty.h" |
| 41 | #include "stream.h" |
| 42 | #include "log.h" |
| 43 | #include "thread.h" |
| 44 | #include "hash.h" |
| 45 | #include "sockunion.h" /* for inet_aton() */ |
| 46 | |
| 47 | #include "ospfd/ospfd.h" |
| 48 | #include "ospfd/ospf_interface.h" |
| 49 | #include "ospfd/ospf_ism.h" |
| 50 | #include "ospfd/ospf_asbr.h" |
| 51 | #include "ospfd/ospf_lsa.h" |
| 52 | #include "ospfd/ospf_lsdb.h" |
| 53 | #include "ospfd/ospf_neighbor.h" |
| 54 | #include "ospfd/ospf_nsm.h" |
| 55 | #include "ospfd/ospf_flood.h" |
| 56 | #include "ospfd/ospf_packet.h" |
| 57 | #include "ospfd/ospf_spf.h" |
| 58 | #include "ospfd/ospf_dump.h" |
| 59 | #include "ospfd/ospf_route.h" |
| 60 | #include "ospfd/ospf_ase.h" |
| 61 | #include "ospfd/ospf_zebra.h" |
| 62 | #include "ospfd/ospf_te.h" |
| 63 | |
| 64 | /* Following structure are internal use only. */ |
| 65 | struct ospf_mpls_te |
| 66 | { |
| 67 | enum { disabled, enabled } status; |
| 68 | |
| 69 | /* List elements are zebra-interfaces (ifp), not ospf-interfaces (oi). */ |
| 70 | list iflist; |
| 71 | |
| 72 | /* Store Router-TLV in network byte order. */ |
| 73 | struct te_tlv_router_addr router_addr; |
| 74 | }; |
| 75 | |
| 76 | struct mpls_te_link |
| 77 | { |
| 78 | /* |
| 79 | * According to MPLS-TE (draft) specification, 24-bit Opaque-ID field |
| 80 | * is subdivided into 8-bit "unused" field and 16-bit "instance" field. |
| 81 | * In this implementation, each Link-TLV has its own instance. |
| 82 | */ |
| 83 | u_int32_t instance; |
| 84 | |
| 85 | /* Reference pointer to a Zebra-interface. */ |
| 86 | struct interface *ifp; |
| 87 | |
| 88 | /* Area info in which this MPLS-TE link belongs to. */ |
| 89 | struct ospf_area *area; |
| 90 | |
| 91 | /* Flags to manage this link parameters. */ |
| 92 | u_int32_t flags; |
| 93 | #define LPFLG_LOOKUP_DONE 0x1 |
| 94 | #define LPFLG_LSA_ENGAGED 0x2 |
| 95 | #define LPFLG_LSA_FORCED_REFRESH 0x4 |
| 96 | |
| 97 | /* Store Link-TLV in network byte order. */ |
| 98 | struct te_tlv_link link_header; |
| 99 | struct te_link_subtlv_link_type link_type; |
| 100 | struct te_link_subtlv_link_id link_id; |
| 101 | struct te_link_subtlv_lclif_ipaddr *lclif_ipaddr; |
| 102 | struct te_link_subtlv_rmtif_ipaddr *rmtif_ipaddr; |
| 103 | struct te_link_subtlv_te_metric te_metric; |
| 104 | struct te_link_subtlv_max_bw max_bw; |
| 105 | struct te_link_subtlv_max_rsv_bw max_rsv_bw; |
| 106 | struct te_link_subtlv_unrsv_bw unrsv_bw; |
| 107 | struct te_link_subtlv_rsc_clsclr rsc_clsclr; |
| 108 | }; |
| 109 | |
| 110 | /* |
| 111 | * Global variable to manage Opaque-LSA/MPLS-TE on this node. |
| 112 | * Note that all parameter values are stored in network byte order. |
| 113 | */ |
| 114 | static struct ospf_mpls_te OspfMplsTE; |
| 115 | |
| 116 | enum oifstate { |
| 117 | OI_ANY, OI_DOWN, OI_UP |
| 118 | }; |
| 119 | |
| 120 | enum sched_opcode { |
| 121 | REORIGINATE_PER_AREA, REFRESH_THIS_LSA, FLUSH_THIS_LSA |
| 122 | }; |
| 123 | |
| 124 | /*------------------------------------------------------------------------* |
| 125 | * Followings are initialize/terminate functions for MPLS-TE handling. |
| 126 | *------------------------------------------------------------------------*/ |
| 127 | |
| 128 | static int ospf_mpls_te_new_if (struct interface *ifp); |
| 129 | static int ospf_mpls_te_del_if (struct interface *ifp); |
| 130 | static void ospf_mpls_te_ism_change (struct ospf_interface *oi, int old_status); |
| 131 | static void ospf_mpls_te_nsm_change (struct ospf_neighbor *nbr, int old_status); |
| 132 | static void ospf_mpls_te_config_write_router (struct vty *vty); |
| 133 | static void ospf_mpls_te_config_write_if (struct vty *vty, struct interface *ifp); |
| 134 | static void ospf_mpls_te_show_info (struct vty *vty, struct ospf_lsa *lsa); |
| 135 | static int ospf_mpls_te_lsa_originate (void *arg); |
| 136 | static void ospf_mpls_te_lsa_refresh (struct ospf_lsa *lsa); |
| 137 | static void ospf_mpls_te_lsa_schedule (struct mpls_te_link *lp, enum sched_opcode); |
| 138 | |
| 139 | static void del_mpls_te_link (void *val); |
| 140 | static void ospf_mpls_te_register_vty (void); |
| 141 | |
| 142 | int |
| 143 | ospf_mpls_te_init (void) |
| 144 | { |
| 145 | int rc; |
| 146 | |
| 147 | rc = ospf_register_opaque_functab ( |
| 148 | OSPF_OPAQUE_AREA_LSA, |
| 149 | OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA, |
| 150 | ospf_mpls_te_new_if, |
| 151 | ospf_mpls_te_del_if, |
| 152 | ospf_mpls_te_ism_change, |
| 153 | ospf_mpls_te_nsm_change, |
| 154 | ospf_mpls_te_config_write_router, |
| 155 | ospf_mpls_te_config_write_if, |
| 156 | NULL,/* ospf_mpls_te_config_write_debug */ |
| 157 | ospf_mpls_te_show_info, |
| 158 | ospf_mpls_te_lsa_originate, |
| 159 | ospf_mpls_te_lsa_refresh, |
| 160 | NULL,/* ospf_mpls_te_new_lsa_hook */ |
| 161 | NULL /* ospf_mpls_te_del_lsa_hook */); |
| 162 | if (rc != 0) |
| 163 | { |
| 164 | zlog_warn ("ospf_mpls_te_init: Failed to register functions"); |
| 165 | goto out; |
| 166 | } |
| 167 | |
| 168 | memset (&OspfMplsTE, 0, sizeof (struct ospf_mpls_te)); |
| 169 | OspfMplsTE.status = disabled; |
| 170 | OspfMplsTE.iflist = list_new (); |
| 171 | OspfMplsTE.iflist->del = del_mpls_te_link; |
| 172 | |
| 173 | ospf_mpls_te_register_vty (); |
| 174 | |
| 175 | out: |
| 176 | return rc; |
| 177 | } |
| 178 | |
| 179 | void |
| 180 | ospf_mpls_te_term (void) |
| 181 | { |
| 182 | list_delete (OspfMplsTE.iflist); |
| 183 | |
| 184 | OspfMplsTE.iflist = NULL; |
| 185 | OspfMplsTE.status = disabled; |
| 186 | |
| 187 | ospf_delete_opaque_functab (OSPF_OPAQUE_AREA_LSA, |
| 188 | OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA); |
| 189 | return; |
| 190 | } |
| 191 | |
| 192 | /*------------------------------------------------------------------------* |
| 193 | * Followings are control functions for MPLS-TE parameters management. |
| 194 | *------------------------------------------------------------------------*/ |
| 195 | |
| 196 | static void |
| 197 | del_mpls_te_link (void *val) |
| 198 | { |
| 199 | XFREE (MTYPE_OSPF_MPLS_TE_LINKPARAMS, val); |
| 200 | return; |
| 201 | } |
| 202 | |
| 203 | static u_int32_t |
| 204 | get_mpls_te_instance_value () |
| 205 | { |
| 206 | static u_int32_t seqno = 0; |
| 207 | |
| 208 | if (LEGAL_TE_INSTANCE_RANGE (seqno + 1)) |
| 209 | seqno += 1; |
| 210 | else |
| 211 | seqno = 1; /* Avoid zero. */ |
| 212 | |
| 213 | return seqno; |
| 214 | } |
| 215 | |
| 216 | static struct ospf_interface * |
| 217 | lookup_oi_by_ifp (struct interface *ifp, |
| 218 | struct ospf_area *area, enum oifstate oifstate) |
| 219 | { |
| 220 | struct ospf_interface *oi = NULL; |
| 221 | struct route_node *rn; |
| 222 | |
| 223 | for (rn = route_top (IF_OIFS (ifp)); rn; rn = route_next (rn)) |
| 224 | { |
| 225 | if ((oi = rn->info) == NULL) |
| 226 | continue; |
| 227 | |
| 228 | switch (oifstate) |
| 229 | { |
| 230 | case OI_ANY: |
| 231 | break; |
| 232 | case OI_DOWN: |
| 233 | if (ospf_if_is_enable (oi)) |
| 234 | continue; |
| 235 | break; |
| 236 | case OI_UP: |
| 237 | if (! ospf_if_is_enable (oi)) |
| 238 | continue; |
| 239 | break; |
| 240 | default: |
| 241 | zlog_warn ("lookup_oi_by_ifp: Unknown oifstate: %x", oifstate); |
| 242 | goto out; |
| 243 | } |
| 244 | |
| 245 | if (area == NULL || oi->area == area) |
| 246 | return oi; |
| 247 | } |
| 248 | out: |
| 249 | return NULL; |
| 250 | } |
| 251 | |
| 252 | static struct mpls_te_link * |
| 253 | lookup_linkparams_by_ifp (struct interface *ifp) |
| 254 | { |
| 255 | listnode node; |
| 256 | struct mpls_te_link *lp; |
| 257 | |
| 258 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 259 | if ((lp = getdata (node)) != NULL) |
| 260 | if (lp->ifp == ifp) |
| 261 | return lp; |
| 262 | |
| 263 | return NULL; |
| 264 | } |
| 265 | |
| 266 | static struct mpls_te_link * |
| 267 | lookup_linkparams_by_instance (struct ospf_lsa *lsa) |
| 268 | { |
| 269 | listnode node; |
| 270 | struct mpls_te_link *lp; |
| 271 | int key = GET_OPAQUE_ID (ntohl (lsa->data->id.s_addr)); |
| 272 | |
| 273 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 274 | if ((lp = getdata (node)) != NULL) |
| 275 | if (lp->instance == key) |
| 276 | return lp; |
| 277 | |
| 278 | zlog_warn ("lookup_linkparams_by_instance: Entry not found: key(%x)", key); |
| 279 | return NULL; |
| 280 | } |
| 281 | |
| 282 | static void |
| 283 | ospf_mpls_te_foreach_area ( |
| 284 | void (*func)(struct mpls_te_link *lp, enum sched_opcode), |
| 285 | enum sched_opcode sched_opcode) |
| 286 | { |
| 287 | listnode node, node2; |
| 288 | struct mpls_te_link *lp; |
| 289 | struct ospf_area *area; |
| 290 | |
| 291 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 292 | { |
| 293 | if ((lp = getdata (node)) == NULL) |
| 294 | continue; |
| 295 | if ((area = lp->area) == NULL) |
| 296 | continue; |
| 297 | if (lp->flags & LPFLG_LOOKUP_DONE) |
| 298 | continue; |
| 299 | |
| 300 | if (func != NULL) |
| 301 | (* func)(lp, sched_opcode); |
| 302 | |
| 303 | for (node2 = nextnode (node); node2; nextnode (node2)) |
| 304 | if ((lp = getdata (node2)) != NULL) |
| 305 | if (lp->area != NULL) |
| 306 | if (IPV4_ADDR_SAME (&lp->area->area_id, &area->area_id)) |
| 307 | lp->flags |= LPFLG_LOOKUP_DONE; |
| 308 | } |
| 309 | |
| 310 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 311 | if ((lp = getdata (node)) != NULL) |
| 312 | if (lp->area != NULL) |
| 313 | lp->flags &= ~LPFLG_LOOKUP_DONE; |
| 314 | |
| 315 | return; |
| 316 | } |
| 317 | |
| 318 | static void |
| 319 | set_mpls_te_router_addr (struct in_addr ipv4) |
| 320 | { |
| 321 | OspfMplsTE.router_addr.header.type = htons (TE_TLV_ROUTER_ADDR); |
| 322 | OspfMplsTE.router_addr.header.length = htons (sizeof (ipv4)); |
| 323 | OspfMplsTE.router_addr.value = ipv4; |
| 324 | return; |
| 325 | } |
| 326 | |
| 327 | static void |
| 328 | set_linkparams_link_header (struct mpls_te_link *lp) |
| 329 | { |
| 330 | struct te_tlv_header *tlvh; |
| 331 | u_int16_t length = 0; |
| 332 | |
| 333 | /* TE_LINK_SUBTLV_LINK_TYPE */ |
| 334 | if (ntohs (lp->link_type.header.type) != 0) |
| 335 | length += TLV_SIZE (&lp->link_type.header); |
| 336 | |
| 337 | /* TE_LINK_SUBTLV_LINK_ID */ |
| 338 | if (ntohs (lp->link_id.header.type) != 0) |
| 339 | length += TLV_SIZE (&lp->link_id.header); |
| 340 | |
| 341 | /* TE_LINK_SUBTLV_LCLIF_IPADDR */ |
| 342 | if ((tlvh = (struct te_tlv_header *) lp->lclif_ipaddr) != NULL |
| 343 | && ntohs (tlvh->type) != 0) |
| 344 | length += TLV_SIZE (tlvh); |
| 345 | |
| 346 | /* TE_LINK_SUBTLV_RMTIF_IPADDR */ |
| 347 | if ((tlvh = (struct te_tlv_header *) lp->rmtif_ipaddr) != NULL |
| 348 | && ntohs (tlvh->type) != 0) |
| 349 | length += TLV_SIZE (tlvh); |
| 350 | |
| 351 | /* TE_LINK_SUBTLV_TE_METRIC */ |
| 352 | if (ntohs (lp->te_metric.header.type) != 0) |
| 353 | length += TLV_SIZE (&lp->te_metric.header); |
| 354 | |
| 355 | /* TE_LINK_SUBTLV_MAX_BW */ |
| 356 | if (ntohs (lp->max_bw.header.type) != 0) |
| 357 | length += TLV_SIZE (&lp->max_bw.header); |
| 358 | |
| 359 | /* TE_LINK_SUBTLV_MAX_RSV_BW */ |
| 360 | if (ntohs (lp->max_rsv_bw.header.type) != 0) |
| 361 | length += TLV_SIZE (&lp->max_rsv_bw.header); |
| 362 | |
| 363 | /* TE_LINK_SUBTLV_UNRSV_BW */ |
| 364 | if (ntohs (lp->unrsv_bw.header.type) != 0) |
| 365 | length += TLV_SIZE (&lp->unrsv_bw.header); |
| 366 | |
| 367 | /* TE_LINK_SUBTLV_RSC_CLSCLR */ |
| 368 | if (ntohs (lp->rsc_clsclr.header.type) != 0) |
| 369 | length += TLV_SIZE (&lp->rsc_clsclr.header); |
| 370 | |
| 371 | lp->link_header.header.type = htons (TE_TLV_LINK); |
| 372 | lp->link_header.header.length = htons (length); |
| 373 | |
| 374 | return; |
| 375 | } |
| 376 | |
| 377 | static void |
| 378 | set_linkparams_link_type (struct ospf_interface *oi, struct mpls_te_link *lp) |
| 379 | { |
| 380 | lp->link_type.header.type = htons (TE_LINK_SUBTLV_LINK_TYPE); |
| 381 | lp->link_type.header.length = htons (sizeof (lp->link_type.link_type.value)); |
| 382 | |
| 383 | switch (oi->type) |
| 384 | { |
| 385 | case OSPF_IFTYPE_POINTOPOINT: |
| 386 | lp->link_type.link_type.value = LINK_TYPE_SUBTLV_VALUE_PTP; |
| 387 | break; |
| 388 | case OSPF_IFTYPE_BROADCAST: |
| 389 | case OSPF_IFTYPE_NBMA: |
| 390 | lp->link_type.link_type.value = LINK_TYPE_SUBTLV_VALUE_MA; |
| 391 | break; |
| 392 | default: |
| 393 | /* Not supported yet. *//* XXX */ |
| 394 | lp->link_type.header.type = htons (0); |
| 395 | break; |
| 396 | } |
| 397 | return; |
| 398 | } |
| 399 | |
| 400 | static void |
| 401 | set_linkparams_link_id (struct ospf_interface *oi, struct mpls_te_link *lp) |
| 402 | { |
| 403 | struct ospf_neighbor *nbr; |
| 404 | int done = 0; |
| 405 | |
| 406 | lp->link_id.header.type = htons (TE_LINK_SUBTLV_LINK_ID); |
| 407 | lp->link_id.header.length = htons (sizeof (lp->link_id.value)); |
| 408 | |
| 409 | /* |
| 410 | * The Link ID is identical to the contents of the Link ID field |
| 411 | * in the Router LSA for these link types. |
| 412 | */ |
| 413 | switch (oi->type) |
| 414 | { |
| 415 | case OSPF_IFTYPE_POINTOPOINT: |
| 416 | /* Take the router ID of the neighbor. */ |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 417 | if ((nbr = ospf_nbr_lookup_ptop (oi)) |
| 418 | && nbr->state == NSM_Full) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 419 | { |
| 420 | lp->link_id.value = nbr->router_id; |
| 421 | done = 1; |
| 422 | } |
| 423 | break; |
| 424 | case OSPF_IFTYPE_BROADCAST: |
| 425 | case OSPF_IFTYPE_NBMA: |
| 426 | /* Take the interface address of the designated router. */ |
| 427 | if ((nbr = ospf_nbr_lookup_by_addr (oi->nbrs, &DR (oi))) == NULL) |
| 428 | break; |
| 429 | |
| 430 | if (nbr->state == NSM_Full |
| 431 | || (IPV4_ADDR_SAME (&oi->address->u.prefix4, &DR (oi)) |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 432 | && ospf_nbr_count (oi, NSM_Full) > 0)) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 433 | { |
| 434 | lp->link_id.value = DR (oi); |
| 435 | done = 1; |
| 436 | } |
| 437 | break; |
| 438 | default: |
| 439 | /* Not supported yet. *//* XXX */ |
| 440 | lp->link_id.header.type = htons (0); |
| 441 | break; |
| 442 | } |
| 443 | |
| 444 | if (! done) |
| 445 | { |
| 446 | struct in_addr mask; |
| 447 | masklen2ip (oi->address->prefixlen, &mask); |
| 448 | lp->link_id.value.s_addr = oi->address->u.prefix4.s_addr & mask.s_addr; |
| 449 | } |
| 450 | return; |
| 451 | } |
| 452 | |
| 453 | static void |
| 454 | set_linkparams_te_metric (struct mpls_te_link *lp, u_int32_t te_metric) |
| 455 | { |
| 456 | lp->te_metric.header.type = htons (TE_LINK_SUBTLV_TE_METRIC); |
| 457 | lp->te_metric.header.length = htons (sizeof (lp->te_metric.value)); |
| 458 | lp->te_metric.value = htonl (te_metric); |
| 459 | return; |
| 460 | } |
| 461 | |
| 462 | static void |
| 463 | set_linkparams_max_bw (struct mpls_te_link *lp, float *fp) |
| 464 | { |
| 465 | lp->max_bw.header.type = htons (TE_LINK_SUBTLV_MAX_BW); |
| 466 | lp->max_bw.header.length = htons (sizeof (lp->max_bw.value)); |
| 467 | htonf (fp, &lp->max_bw.value); |
| 468 | return; |
| 469 | } |
| 470 | |
| 471 | static void |
| 472 | set_linkparams_max_rsv_bw (struct mpls_te_link *lp, float *fp) |
| 473 | { |
| 474 | lp->max_rsv_bw.header.type = htons (TE_LINK_SUBTLV_MAX_RSV_BW); |
| 475 | lp->max_rsv_bw.header.length = htons (sizeof (lp->max_rsv_bw.value)); |
| 476 | htonf (fp, &lp->max_rsv_bw.value); |
| 477 | return; |
| 478 | } |
| 479 | |
| 480 | static void |
| 481 | set_linkparams_unrsv_bw (struct mpls_te_link *lp, int priority, float *fp) |
| 482 | { |
| 483 | /* Note that TLV-length field is the size of array. */ |
| 484 | lp->unrsv_bw.header.type = htons (TE_LINK_SUBTLV_UNRSV_BW); |
| 485 | lp->unrsv_bw.header.length = htons (sizeof (lp->unrsv_bw.value)); |
| 486 | htonf (fp, &lp->unrsv_bw.value [priority]); |
| 487 | return; |
| 488 | } |
| 489 | |
| 490 | static void |
| 491 | set_linkparams_rsc_clsclr (struct mpls_te_link *lp, u_int32_t classcolor) |
| 492 | { |
| 493 | lp->rsc_clsclr.header.type = htons (TE_LINK_SUBTLV_RSC_CLSCLR); |
| 494 | lp->rsc_clsclr.header.length = htons (sizeof (lp->rsc_clsclr.value)); |
| 495 | lp->rsc_clsclr.value = htonl (classcolor); |
| 496 | return; |
| 497 | } |
| 498 | |
| 499 | static void |
| 500 | initialize_linkparams (struct mpls_te_link *lp) |
| 501 | { |
| 502 | struct interface *ifp = lp->ifp; |
| 503 | struct ospf_interface *oi; |
| 504 | float fval; |
| 505 | int i; |
| 506 | |
| 507 | if ((oi = lookup_oi_by_ifp (ifp, NULL, OI_ANY)) == NULL) |
| 508 | return; |
| 509 | |
| 510 | /* |
| 511 | * Try to set initial values those can be derived from |
| 512 | * zebra-interface information. |
| 513 | */ |
| 514 | set_linkparams_link_type (oi, lp); |
| 515 | |
| 516 | /* |
| 517 | * Linux and *BSD kernel holds bandwidth parameter as an "int" type. |
| 518 | * We may have to reconsider, if "ifp->bandwidth" type changes to float. |
| 519 | */ |
| 520 | fval = (float)((ifp->bandwidth ? ifp->bandwidth |
| 521 | : OSPF_DEFAULT_BANDWIDTH) * 1000 / 8); |
| 522 | |
| 523 | set_linkparams_max_bw (lp, &fval); |
| 524 | set_linkparams_max_rsv_bw (lp, &fval); |
| 525 | |
| 526 | for (i = 0; i < 8; i++) |
| 527 | set_linkparams_unrsv_bw (lp, i, &fval); |
| 528 | |
| 529 | return; |
| 530 | } |
| 531 | |
| 532 | static int |
| 533 | is_mandated_params_set (struct mpls_te_link *lp) |
| 534 | { |
| 535 | int rc = 0; |
| 536 | |
| 537 | if (ntohs (OspfMplsTE.router_addr.header.type) == 0) |
| 538 | goto out; |
| 539 | |
| 540 | if (ntohs (lp->link_type.header.type) == 0) |
| 541 | goto out; |
| 542 | |
| 543 | if (ntohs (lp->link_id.header.type) == 0) |
| 544 | goto out; |
| 545 | |
| 546 | rc = 1; |
| 547 | out: |
| 548 | return rc; |
| 549 | } |
| 550 | |
| 551 | /*------------------------------------------------------------------------* |
| 552 | * Followings are callback functions against generic Opaque-LSAs handling. |
| 553 | *------------------------------------------------------------------------*/ |
| 554 | |
| 555 | static int |
| 556 | ospf_mpls_te_new_if (struct interface *ifp) |
| 557 | { |
| 558 | struct mpls_te_link *new; |
| 559 | int rc = -1; |
| 560 | |
| 561 | if (lookup_linkparams_by_ifp (ifp) != NULL) |
| 562 | { |
| 563 | zlog_warn ("ospf_mpls_te_new_if: ifp(%p) already in use?", ifp); |
| 564 | rc = 0; /* Do nothing here. */ |
| 565 | goto out; |
| 566 | } |
| 567 | |
| 568 | if ((new = XMALLOC (MTYPE_OSPF_MPLS_TE_LINKPARAMS, |
| 569 | sizeof (struct mpls_te_link))) == NULL) |
| 570 | { |
| 571 | zlog_warn ("ospf_mpls_te_new_if: XMALLOC: %s", strerror (errno)); |
| 572 | goto out; |
| 573 | } |
| 574 | memset (new, 0, sizeof (struct mpls_te_link)); |
| 575 | |
| 576 | new->area = NULL; |
| 577 | new->flags = 0; |
| 578 | new->instance = get_mpls_te_instance_value (); |
| 579 | new->ifp = ifp; |
| 580 | |
| 581 | initialize_linkparams (new); |
| 582 | |
| 583 | listnode_add (OspfMplsTE.iflist, new); |
| 584 | |
| 585 | /* Schedule Opaque-LSA refresh. *//* XXX */ |
| 586 | |
| 587 | rc = 0; |
| 588 | out: |
| 589 | return rc; |
| 590 | } |
| 591 | |
| 592 | static int |
| 593 | ospf_mpls_te_del_if (struct interface *ifp) |
| 594 | { |
| 595 | struct mpls_te_link *lp; |
| 596 | int rc = -1; |
| 597 | |
| 598 | if ((lp = lookup_linkparams_by_ifp (ifp)) != NULL) |
| 599 | { |
| 600 | list iflist = OspfMplsTE.iflist; |
| 601 | |
| 602 | /* Dequeue listnode entry from the list. */ |
| 603 | listnode_delete (iflist, lp); |
| 604 | |
| 605 | /* Avoid misjudgement in the next lookup. */ |
| 606 | if (listcount (iflist) == 0) |
| 607 | iflist->head = iflist->tail = NULL; |
| 608 | |
| 609 | XFREE (MTYPE_OSPF_MPLS_TE_LINKPARAMS, lp); |
| 610 | } |
| 611 | |
| 612 | /* Schedule Opaque-LSA refresh. *//* XXX */ |
| 613 | |
| 614 | rc = 0; |
| 615 | /*out:*/ |
| 616 | return rc; |
| 617 | } |
| 618 | |
| 619 | static void |
| 620 | ospf_mpls_te_ism_change (struct ospf_interface *oi, int old_state) |
| 621 | { |
| 622 | struct te_link_subtlv_link_type old_type; |
| 623 | struct te_link_subtlv_link_id old_id; |
| 624 | struct mpls_te_link *lp; |
| 625 | |
| 626 | if ((lp = lookup_linkparams_by_ifp (oi->ifp)) == NULL) |
| 627 | { |
| 628 | zlog_warn ("ospf_mpls_te_ism_change: Cannot get linkparams from OI(%s)?", IF_NAME (oi)); |
| 629 | goto out; |
| 630 | } |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 631 | if (oi->area == NULL || oi->area->ospf == NULL) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 632 | { |
| 633 | zlog_warn ("ospf_mpls_te_ism_change: Cannot refer to OSPF from OI(%s)?", |
| 634 | IF_NAME (oi)); |
| 635 | goto out; |
| 636 | } |
| 637 | #ifdef notyet |
| 638 | if ((lp->area != NULL |
| 639 | && ! IPV4_ADDR_SAME (&lp->area->area_id, &oi->area->area_id)) |
| 640 | || (lp->area != NULL && oi->area == NULL)) |
| 641 | { |
| 642 | /* How should we consider this case? */ |
| 643 | zlog_warn ("MPLS-TE: Area for OI(%s) has changed to [%s], flush previous LSAs", IF_NAME (oi), oi->area ? inet_ntoa (oi->area->area_id) : "N/A"); |
| 644 | ospf_mpls_te_lsa_schedule (lp, FLUSH_THIS_LSA); |
| 645 | } |
| 646 | #endif |
| 647 | /* Keep Area information in conbination with linkparams. */ |
| 648 | lp->area = oi->area; |
| 649 | |
| 650 | switch (oi->state) |
| 651 | { |
| 652 | case ISM_PointToPoint: |
| 653 | case ISM_DROther: |
| 654 | case ISM_Backup: |
| 655 | case ISM_DR: |
| 656 | old_type = lp->link_type; |
| 657 | old_id = lp->link_id; |
| 658 | |
| 659 | set_linkparams_link_type (oi, lp); |
| 660 | set_linkparams_link_id (oi, lp); |
| 661 | |
| 662 | if ((ntohs (old_type.header.type) != ntohs (lp->link_type.header.type) |
| 663 | || old_type.link_type.value != lp->link_type.link_type.value) |
| 664 | || (ntohs (old_id.header.type) != ntohs (lp->link_id.header.type) |
| 665 | || ntohl (old_id.value.s_addr) != ntohl (lp->link_id.value.s_addr))) |
| 666 | { |
| 667 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 668 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 669 | else |
| 670 | ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA); |
| 671 | } |
| 672 | break; |
| 673 | default: |
| 674 | lp->link_type.header.type = htons (0); |
| 675 | lp->link_id.header.type = htons (0); |
| 676 | |
| 677 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 678 | ospf_mpls_te_lsa_schedule (lp, FLUSH_THIS_LSA); |
| 679 | break; |
| 680 | } |
| 681 | |
| 682 | out: |
| 683 | return; |
| 684 | } |
| 685 | |
| 686 | static void |
| 687 | ospf_mpls_te_nsm_change (struct ospf_neighbor *nbr, int old_state) |
| 688 | { |
| 689 | /* So far, nothing to do here. */ |
| 690 | return; |
| 691 | } |
| 692 | |
| 693 | /*------------------------------------------------------------------------* |
| 694 | * Followings are OSPF protocol processing functions for MPLS-TE. |
| 695 | *------------------------------------------------------------------------*/ |
| 696 | |
| 697 | static void |
| 698 | build_tlv_header (struct stream *s, struct te_tlv_header *tlvh) |
| 699 | { |
| 700 | stream_put (s, tlvh, sizeof (struct te_tlv_header)); |
| 701 | return; |
| 702 | } |
| 703 | |
| 704 | static void |
| 705 | build_router_tlv (struct stream *s) |
| 706 | { |
| 707 | struct te_tlv_header *tlvh = &OspfMplsTE.router_addr.header; |
| 708 | if (ntohs (tlvh->type) != 0) |
| 709 | { |
| 710 | build_tlv_header (s, tlvh); |
| 711 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 712 | } |
| 713 | return; |
| 714 | } |
| 715 | |
| 716 | static void |
| 717 | build_link_subtlv_link_type (struct stream *s, struct mpls_te_link *lp) |
| 718 | { |
| 719 | struct te_tlv_header *tlvh = &lp->link_type.header; |
| 720 | if (ntohs (tlvh->type) != 0) |
| 721 | { |
| 722 | build_tlv_header (s, tlvh); |
| 723 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 724 | } |
| 725 | return; |
| 726 | } |
| 727 | |
| 728 | static void |
| 729 | build_link_subtlv_link_id (struct stream *s, struct mpls_te_link *lp) |
| 730 | { |
| 731 | struct te_tlv_header *tlvh = &lp->link_id.header; |
| 732 | if (ntohs (tlvh->type) != 0) |
| 733 | { |
| 734 | build_tlv_header (s, tlvh); |
| 735 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 736 | } |
| 737 | return; |
| 738 | } |
| 739 | |
| 740 | static void |
| 741 | build_link_subtlv_lclif_ipaddr (struct stream *s, struct mpls_te_link *lp) |
| 742 | { |
| 743 | struct te_tlv_header *tlvh = (struct te_tlv_header *) lp->lclif_ipaddr; |
| 744 | if (tlvh != NULL && ntohs (tlvh->type) != 0) |
| 745 | { |
| 746 | build_tlv_header (s, tlvh); |
| 747 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 748 | } |
| 749 | return; |
| 750 | } |
| 751 | |
| 752 | static void |
| 753 | build_link_subtlv_rmtif_ipaddr (struct stream *s, struct mpls_te_link *lp) |
| 754 | { |
| 755 | struct te_tlv_header *tlvh = (struct te_tlv_header *) lp->rmtif_ipaddr; |
| 756 | if (tlvh != NULL && ntohs (tlvh->type) != 0) |
| 757 | { |
| 758 | build_tlv_header (s, tlvh); |
| 759 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 760 | } |
| 761 | return; |
| 762 | } |
| 763 | |
| 764 | static void |
| 765 | build_link_subtlv_te_metric (struct stream *s, struct mpls_te_link *lp) |
| 766 | { |
| 767 | struct te_tlv_header *tlvh = &lp->te_metric.header; |
| 768 | if (ntohs (tlvh->type) != 0) |
| 769 | { |
| 770 | build_tlv_header (s, tlvh); |
| 771 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 772 | } |
| 773 | return; |
| 774 | } |
| 775 | |
| 776 | static void |
| 777 | build_link_subtlv_max_bw (struct stream *s, struct mpls_te_link *lp) |
| 778 | { |
| 779 | struct te_tlv_header *tlvh = &lp->max_bw.header; |
| 780 | if (ntohs (tlvh->type) != 0) |
| 781 | { |
| 782 | build_tlv_header (s, tlvh); |
| 783 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 784 | } |
| 785 | return; |
| 786 | } |
| 787 | |
| 788 | static void |
| 789 | build_link_subtlv_max_rsv_bw (struct stream *s, struct mpls_te_link *lp) |
| 790 | { |
| 791 | struct te_tlv_header *tlvh = &lp->max_rsv_bw.header; |
| 792 | if (ntohs (tlvh->type) != 0) |
| 793 | { |
| 794 | build_tlv_header (s, tlvh); |
| 795 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 796 | } |
| 797 | return; |
| 798 | } |
| 799 | |
| 800 | static void |
| 801 | build_link_subtlv_unrsv_bw (struct stream *s, struct mpls_te_link *lp) |
| 802 | { |
| 803 | struct te_tlv_header *tlvh = &lp->unrsv_bw.header; |
| 804 | if (ntohs (tlvh->type) != 0) |
| 805 | { |
| 806 | build_tlv_header (s, tlvh); |
| 807 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 808 | } |
| 809 | return; |
| 810 | } |
| 811 | |
| 812 | static void |
| 813 | build_link_subtlv_rsc_clsclr (struct stream *s, struct mpls_te_link *lp) |
| 814 | { |
| 815 | struct te_tlv_header *tlvh = &lp->rsc_clsclr.header; |
| 816 | if (ntohs (tlvh->type) != 0) |
| 817 | { |
| 818 | build_tlv_header (s, tlvh); |
| 819 | stream_put (s, tlvh+1, TLV_BODY_SIZE (tlvh)); |
| 820 | } |
| 821 | return; |
| 822 | } |
| 823 | |
| 824 | static void |
| 825 | build_link_tlv (struct stream *s, struct mpls_te_link *lp) |
| 826 | { |
| 827 | set_linkparams_link_header (lp); |
| 828 | build_tlv_header (s, &lp->link_header.header); |
| 829 | |
| 830 | build_link_subtlv_link_type (s, lp); |
| 831 | build_link_subtlv_link_id (s, lp); |
| 832 | build_link_subtlv_lclif_ipaddr (s, lp); |
| 833 | build_link_subtlv_rmtif_ipaddr (s, lp); |
| 834 | build_link_subtlv_te_metric (s, lp); |
| 835 | build_link_subtlv_max_bw (s, lp); |
| 836 | build_link_subtlv_max_rsv_bw (s, lp); |
| 837 | build_link_subtlv_unrsv_bw (s, lp); |
| 838 | build_link_subtlv_rsc_clsclr (s, lp); |
| 839 | return; |
| 840 | } |
| 841 | |
| 842 | static void |
| 843 | ospf_mpls_te_lsa_body_set (struct stream *s, struct mpls_te_link *lp) |
| 844 | { |
| 845 | /* |
| 846 | * The router address TLV is type 1, and ... |
| 847 | * It must appear in exactly one |
| 848 | * Traffic Engineering LSA originated by a router. |
| 849 | */ |
| 850 | build_router_tlv (s); |
| 851 | |
| 852 | /* |
| 853 | * Only one Link TLV shall be carried in each LSA, allowing for fine |
| 854 | * granularity changes in topology. |
| 855 | */ |
| 856 | build_link_tlv (s, lp); |
| 857 | return; |
| 858 | } |
| 859 | |
| 860 | /* Create new opaque-LSA. */ |
| 861 | static struct ospf_lsa * |
| 862 | ospf_mpls_te_lsa_new (struct ospf_area *area, struct mpls_te_link *lp) |
| 863 | { |
| 864 | struct stream *s; |
| 865 | struct lsa_header *lsah; |
| 866 | struct ospf_lsa *new = NULL; |
| 867 | u_char options, lsa_type; |
| 868 | struct in_addr lsa_id; |
| 869 | u_int32_t tmp; |
| 870 | u_int16_t length; |
| 871 | |
| 872 | /* Create a stream for LSA. */ |
| 873 | if ((s = stream_new (OSPF_MAX_LSA_SIZE)) == NULL) |
| 874 | { |
| 875 | zlog_warn ("ospf_mpls_te_lsa_new: stream_new() ?"); |
| 876 | goto out; |
| 877 | } |
| 878 | lsah = (struct lsa_header *) STREAM_DATA (s); |
| 879 | |
| 880 | options = LSA_OPTIONS_GET (area); |
| 881 | #ifdef HAVE_NSSA |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 882 | options |= LSA_OPTIONS_NSSA_GET (area); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 883 | #endif /* HAVE_NSSA */ |
| 884 | options |= OSPF_OPTION_O; /* Don't forget this :-) */ |
| 885 | |
| 886 | lsa_type = OSPF_OPAQUE_AREA_LSA; |
| 887 | tmp = SET_OPAQUE_LSID (OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA, lp->instance); |
| 888 | lsa_id.s_addr = htonl (tmp); |
| 889 | |
| 890 | if (IS_DEBUG_OSPF (lsa, LSA_GENERATE)) |
| 891 | zlog_info ("LSA[Type%d:%s]: Create an Opaque-LSA/MPLS-TE instance", lsa_type, inet_ntoa (lsa_id)); |
| 892 | |
| 893 | /* Set opaque-LSA header fields. */ |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 894 | lsa_header_set (s, options, lsa_type, lsa_id, area->ospf->router_id); |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 895 | |
| 896 | /* Set opaque-LSA body fields. */ |
| 897 | ospf_mpls_te_lsa_body_set (s, lp); |
| 898 | |
| 899 | /* Set length. */ |
| 900 | length = stream_get_endp (s); |
| 901 | lsah->length = htons (length); |
| 902 | |
| 903 | /* Now, create an OSPF LSA instance. */ |
| 904 | if ((new = ospf_lsa_new ()) == NULL) |
| 905 | { |
| 906 | zlog_warn ("ospf_mpls_te_lsa_new: ospf_lsa_new() ?"); |
| 907 | stream_free (s); |
| 908 | goto out; |
| 909 | } |
| 910 | if ((new->data = ospf_lsa_data_new (length)) == NULL) |
| 911 | { |
| 912 | zlog_warn ("ospf_mpls_te_lsa_new: ospf_lsa_data_new() ?"); |
| 913 | ospf_lsa_free (new); |
| 914 | new = NULL; |
| 915 | stream_free (s); |
| 916 | goto out; |
| 917 | } |
| 918 | |
| 919 | new->area = area; |
| 920 | SET_FLAG (new->flags, OSPF_LSA_SELF); |
| 921 | memcpy (new->data, lsah, length); |
| 922 | stream_free (s); |
| 923 | |
| 924 | out: |
| 925 | return new; |
| 926 | } |
| 927 | |
| 928 | static int |
| 929 | ospf_mpls_te_lsa_originate1 (struct ospf_area *area, struct mpls_te_link *lp) |
| 930 | { |
| 931 | struct ospf_lsa *new; |
| 932 | int rc = -1; |
| 933 | |
| 934 | /* Create new Opaque-LSA/MPLS-TE instance. */ |
| 935 | if ((new = ospf_mpls_te_lsa_new (area, lp)) == NULL) |
| 936 | { |
| 937 | zlog_warn ("ospf_mpls_te_lsa_originate1: ospf_mpls_te_lsa_new() ?"); |
| 938 | goto out; |
| 939 | } |
| 940 | |
| 941 | /* Install this LSA into LSDB. */ |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 942 | if (ospf_lsa_install (area->ospf, NULL/*oi*/, new) == NULL) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 943 | { |
| 944 | zlog_warn ("ospf_mpls_te_lsa_originate1: ospf_lsa_install() ?"); |
| 945 | ospf_lsa_free (new); |
| 946 | goto out; |
| 947 | } |
| 948 | |
| 949 | /* Now this linkparameter entry has associated LSA. */ |
| 950 | lp->flags |= LPFLG_LSA_ENGAGED; |
| 951 | |
| 952 | /* Update new LSA origination count. */ |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 953 | area->ospf->lsa_originate_count++; |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 954 | |
| 955 | /* Flood new LSA through area. */ |
| 956 | ospf_flood_through_area (area, NULL/*nbr*/, new); |
| 957 | |
| 958 | if (IS_DEBUG_OSPF (lsa, LSA_GENERATE)) |
| 959 | { |
| 960 | char area_id[INET_ADDRSTRLEN]; |
| 961 | strcpy (area_id, inet_ntoa (area->area_id)); |
| 962 | zlog_info ("LSA[Type%d:%s]: Originate Opaque-LSA/MPLS-TE: Area(%s), Link(%s)", new->data->type, inet_ntoa (new->data->id), area_id, lp->ifp->name); |
| 963 | ospf_lsa_header_dump (new->data); |
| 964 | } |
| 965 | |
| 966 | rc = 0; |
| 967 | out: |
| 968 | return rc; |
| 969 | } |
| 970 | |
| 971 | static int |
| 972 | ospf_mpls_te_lsa_originate (void *arg) |
| 973 | { |
| 974 | struct ospf_area *area = (struct ospf_area *) arg; |
| 975 | listnode node; |
| 976 | struct mpls_te_link *lp; |
| 977 | int rc = -1; |
| 978 | |
| 979 | if (OspfMplsTE.status == disabled) |
| 980 | { |
| 981 | zlog_info ("ospf_mpls_te_lsa_originate: MPLS-TE is disabled now."); |
| 982 | rc = 0; /* This is not an error case. */ |
| 983 | goto out; |
| 984 | } |
| 985 | |
| 986 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 987 | { |
| 988 | if ((lp = getdata (node)) == NULL) |
| 989 | continue; |
| 990 | if (lp->area == NULL) |
| 991 | continue; |
| 992 | if (! IPV4_ADDR_SAME (&lp->area->area_id, &area->area_id)) |
| 993 | continue; |
| 994 | |
| 995 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 996 | { |
| 997 | if (lp->flags & LPFLG_LSA_FORCED_REFRESH) |
| 998 | { |
| 999 | lp->flags &= ~LPFLG_LSA_FORCED_REFRESH; |
| 1000 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 1001 | } |
| 1002 | continue; |
| 1003 | } |
| 1004 | if (! is_mandated_params_set (lp)) |
| 1005 | { |
| 1006 | zlog_warn ("ospf_mpls_te_lsa_originate: Link(%s) lacks some mandated MPLS-TE parameters.", lp->ifp ? lp->ifp->name : "?"); |
| 1007 | continue; |
| 1008 | } |
| 1009 | |
| 1010 | /* Ok, let's try to originate an LSA for this area and Link. */ |
| 1011 | if (ospf_mpls_te_lsa_originate1 (area, lp) != 0) |
| 1012 | goto out; |
| 1013 | } |
| 1014 | |
| 1015 | rc = 0; |
| 1016 | out: |
| 1017 | return rc; |
| 1018 | } |
| 1019 | |
| 1020 | static void |
| 1021 | ospf_mpls_te_lsa_refresh (struct ospf_lsa *lsa) |
| 1022 | { |
| 1023 | struct mpls_te_link *lp; |
| 1024 | struct ospf_area *area = lsa->area; |
| 1025 | struct ospf_lsa *new = NULL; |
| 1026 | |
| 1027 | if (OspfMplsTE.status == disabled) |
| 1028 | { |
| 1029 | /* |
| 1030 | * This LSA must have flushed before due to MPLS-TE status change. |
| 1031 | * It seems a slip among routers in the routing domain. |
| 1032 | */ |
| 1033 | zlog_info ("ospf_mpls_te_lsa_refresh: MPLS-TE is disabled now."); |
| 1034 | lsa->data->ls_age = htons (OSPF_LSA_MAXAGE); /* Flush it anyway. */ |
| 1035 | } |
| 1036 | |
| 1037 | /* At first, resolve lsa/lp relationship. */ |
| 1038 | if ((lp = lookup_linkparams_by_instance (lsa)) == NULL) |
| 1039 | { |
| 1040 | zlog_warn ("ospf_mpls_te_lsa_refresh: Invalid parameter?"); |
| 1041 | lsa->data->ls_age = htons (OSPF_LSA_MAXAGE); /* Flush it anyway. */ |
| 1042 | } |
| 1043 | |
| 1044 | /* If the lsa's age reached to MaxAge, start flushing procedure. */ |
| 1045 | if (IS_LSA_MAXAGE (lsa)) |
| 1046 | { |
| 1047 | lp->flags &= ~LPFLG_LSA_ENGAGED; |
| 1048 | ospf_opaque_lsa_flush_schedule (lsa); |
| 1049 | goto out; |
| 1050 | } |
| 1051 | |
| 1052 | /* Create new Opaque-LSA/MPLS-TE instance. */ |
| 1053 | if ((new = ospf_mpls_te_lsa_new (area, lp)) == NULL) |
| 1054 | { |
| 1055 | zlog_warn ("ospf_mpls_te_lsa_refresh: ospf_mpls_te_lsa_new() ?"); |
| 1056 | goto out; |
| 1057 | } |
| 1058 | new->data->ls_seqnum = lsa_seqnum_increment (lsa); |
| 1059 | |
| 1060 | /* Install this LSA into LSDB. */ |
| 1061 | /* Given "lsa" will be freed in the next function. */ |
paul | d4a53d5 | 2003-07-12 21:30:57 +0000 | [diff] [blame] | 1062 | if (ospf_lsa_install (area->ospf, NULL/*oi*/, new) == NULL) |
paul | 718e374 | 2002-12-13 20:15:29 +0000 | [diff] [blame] | 1063 | { |
| 1064 | zlog_warn ("ospf_mpls_te_lsa_refresh: ospf_lsa_install() ?"); |
| 1065 | ospf_lsa_free (new); |
| 1066 | goto out; |
| 1067 | } |
| 1068 | |
| 1069 | /* Flood updated LSA through area. */ |
| 1070 | ospf_flood_through_area (area, NULL/*nbr*/, new); |
| 1071 | |
| 1072 | /* Debug logging. */ |
| 1073 | if (IS_DEBUG_OSPF (lsa, LSA_GENERATE)) |
| 1074 | { |
| 1075 | zlog_info ("LSA[Type%d:%s]: Refresh Opaque-LSA/MPLS-TE", |
| 1076 | new->data->type, inet_ntoa (new->data->id)); |
| 1077 | ospf_lsa_header_dump (new->data); |
| 1078 | } |
| 1079 | |
| 1080 | out: |
| 1081 | return; |
| 1082 | } |
| 1083 | |
| 1084 | static void |
| 1085 | ospf_mpls_te_lsa_schedule (struct mpls_te_link *lp, |
| 1086 | enum sched_opcode opcode) |
| 1087 | { |
| 1088 | struct ospf_lsa lsa; |
| 1089 | struct lsa_header lsah; |
| 1090 | u_int32_t tmp; |
| 1091 | |
| 1092 | memset (&lsa, 0, sizeof (lsa)); |
| 1093 | memset (&lsah, 0, sizeof (lsah)); |
| 1094 | |
| 1095 | lsa.area = lp->area; |
| 1096 | lsa.data = &lsah; |
| 1097 | lsah.type = OSPF_OPAQUE_AREA_LSA; |
| 1098 | tmp = SET_OPAQUE_LSID (OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA, lp->instance); |
| 1099 | lsah.id.s_addr = htonl (tmp); |
| 1100 | |
| 1101 | switch (opcode) |
| 1102 | { |
| 1103 | case REORIGINATE_PER_AREA: |
| 1104 | ospf_opaque_lsa_reoriginate_schedule ((void *) lp->area, |
| 1105 | OSPF_OPAQUE_AREA_LSA, OPAQUE_TYPE_TRAFFIC_ENGINEERING_LSA); |
| 1106 | break; |
| 1107 | case REFRESH_THIS_LSA: |
| 1108 | ospf_opaque_lsa_refresh_schedule (&lsa); |
| 1109 | break; |
| 1110 | case FLUSH_THIS_LSA: |
| 1111 | lp->flags &= ~LPFLG_LSA_ENGAGED; |
| 1112 | ospf_opaque_lsa_flush_schedule (&lsa); |
| 1113 | break; |
| 1114 | default: |
| 1115 | zlog_warn ("ospf_mpls_te_lsa_schedule: Unknown opcode (%u)", opcode); |
| 1116 | break; |
| 1117 | } |
| 1118 | |
| 1119 | return; |
| 1120 | } |
| 1121 | |
| 1122 | /*------------------------------------------------------------------------* |
| 1123 | * Followings are vty session control functions. |
| 1124 | *------------------------------------------------------------------------*/ |
| 1125 | |
| 1126 | static u_int16_t |
| 1127 | show_vty_router_addr (struct vty *vty, struct te_tlv_header *tlvh) |
| 1128 | { |
| 1129 | struct te_tlv_router_addr *top = (struct te_tlv_router_addr *) tlvh; |
| 1130 | |
| 1131 | if (vty != NULL) |
| 1132 | vty_out (vty, " Router-Address: %s%s", inet_ntoa (top->value), VTY_NEWLINE); |
| 1133 | else |
| 1134 | zlog_info (" Router-Address: %s", inet_ntoa (top->value)); |
| 1135 | |
| 1136 | return TLV_SIZE (tlvh); |
| 1137 | } |
| 1138 | |
| 1139 | static u_int16_t |
| 1140 | show_vty_link_header (struct vty *vty, struct te_tlv_header *tlvh) |
| 1141 | { |
| 1142 | struct te_tlv_link *top = (struct te_tlv_link *) tlvh; |
| 1143 | |
| 1144 | if (vty != NULL) |
| 1145 | vty_out (vty, " Link: %u octets of data%s", ntohs (top->header.length), VTY_NEWLINE); |
| 1146 | else |
| 1147 | zlog_info (" Link: %u octets of data", ntohs (top->header.length)); |
| 1148 | |
| 1149 | return TLV_HDR_SIZE; /* Here is special, not "TLV_SIZE". */ |
| 1150 | } |
| 1151 | |
| 1152 | static u_int16_t |
| 1153 | show_vty_link_subtlv_link_type (struct vty *vty, struct te_tlv_header *tlvh) |
| 1154 | { |
| 1155 | struct te_link_subtlv_link_type *top; |
| 1156 | const char *cp = "Unknown"; |
| 1157 | |
| 1158 | top = (struct te_link_subtlv_link_type *) tlvh; |
| 1159 | switch (top->link_type.value) |
| 1160 | { |
| 1161 | case LINK_TYPE_SUBTLV_VALUE_PTP: |
| 1162 | cp = "Point-to-point"; |
| 1163 | break; |
| 1164 | case LINK_TYPE_SUBTLV_VALUE_MA: |
| 1165 | cp = "Multiaccess"; |
| 1166 | break; |
| 1167 | default: |
| 1168 | break; |
| 1169 | } |
| 1170 | |
| 1171 | if (vty != NULL) |
| 1172 | vty_out (vty, " Link-Type: %s (%u)%s", cp, top->link_type.value, VTY_NEWLINE); |
| 1173 | else |
| 1174 | zlog_info (" Link-Type: %s (%u)", cp, top->link_type.value); |
| 1175 | |
| 1176 | return TLV_SIZE (tlvh); |
| 1177 | } |
| 1178 | |
| 1179 | static u_int16_t |
| 1180 | show_vty_link_subtlv_link_id (struct vty *vty, struct te_tlv_header *tlvh) |
| 1181 | { |
| 1182 | struct te_link_subtlv_link_id *top; |
| 1183 | |
| 1184 | top = (struct te_link_subtlv_link_id *) tlvh; |
| 1185 | if (vty != NULL) |
| 1186 | vty_out (vty, " Link-ID: %s%s", inet_ntoa (top->value), VTY_NEWLINE); |
| 1187 | else |
| 1188 | zlog_info (" Link-ID: %s", inet_ntoa (top->value)); |
| 1189 | |
| 1190 | return TLV_SIZE (tlvh); |
| 1191 | } |
| 1192 | |
| 1193 | static u_int16_t |
| 1194 | show_vty_link_subtlv_lclif_ipaddr (struct vty *vty, struct te_tlv_header *tlvh) |
| 1195 | { |
| 1196 | struct te_link_subtlv_lclif_ipaddr *top; |
| 1197 | int i, n; |
| 1198 | |
| 1199 | top = (struct te_link_subtlv_lclif_ipaddr *) tlvh; |
| 1200 | n = ntohs (tlvh->length) / sizeof (top->value[0]); |
| 1201 | |
| 1202 | if (vty != NULL) |
| 1203 | vty_out (vty, " Local Interface IP Address(es): %d%s", n, VTY_NEWLINE); |
| 1204 | else |
| 1205 | zlog_info (" Local Interface IP Address(es): %d", n); |
| 1206 | |
| 1207 | for (i = 0; i < n; i++) |
| 1208 | { |
| 1209 | if (vty != NULL) |
| 1210 | vty_out (vty, " #%d: %s%s", i, inet_ntoa (top->value[i]), VTY_NEWLINE); |
| 1211 | else |
| 1212 | zlog_info (" #%d: %s", i, inet_ntoa (top->value[i])); |
| 1213 | } |
| 1214 | return TLV_SIZE (tlvh); |
| 1215 | } |
| 1216 | |
| 1217 | static u_int16_t |
| 1218 | show_vty_link_subtlv_rmtif_ipaddr (struct vty *vty, struct te_tlv_header *tlvh) |
| 1219 | { |
| 1220 | struct te_link_subtlv_rmtif_ipaddr *top; |
| 1221 | int i, n; |
| 1222 | |
| 1223 | top = (struct te_link_subtlv_rmtif_ipaddr *) tlvh; |
| 1224 | n = ntohs (tlvh->length) / sizeof (top->value[0]); |
| 1225 | if (vty != NULL) |
| 1226 | vty_out (vty, " Remote Interface IP Address(es): %d%s", n, VTY_NEWLINE); |
| 1227 | else |
| 1228 | zlog_info (" Remote Interface IP Address(es): %d", n); |
| 1229 | |
| 1230 | for (i = 0; i < n; i++) |
| 1231 | { |
| 1232 | if (vty != NULL) |
| 1233 | vty_out (vty, " #%d: %s%s", i, inet_ntoa (top->value[i]), VTY_NEWLINE); |
| 1234 | else |
| 1235 | zlog_info (" #%d: %s", i, inet_ntoa (top->value[i])); |
| 1236 | } |
| 1237 | return TLV_SIZE (tlvh); |
| 1238 | } |
| 1239 | |
| 1240 | static u_int16_t |
| 1241 | show_vty_link_subtlv_te_metric (struct vty *vty, struct te_tlv_header *tlvh) |
| 1242 | { |
| 1243 | struct te_link_subtlv_te_metric *top; |
| 1244 | |
| 1245 | top = (struct te_link_subtlv_te_metric *) tlvh; |
| 1246 | if (vty != NULL) |
| 1247 | vty_out (vty, " Traffic Engineering Metric: %u%s", (u_int32_t) ntohl (top->value), VTY_NEWLINE); |
| 1248 | else |
| 1249 | zlog_info (" Traffic Engineering Metric: %u", (u_int32_t) ntohl (top->value)); |
| 1250 | |
| 1251 | return TLV_SIZE (tlvh); |
| 1252 | } |
| 1253 | |
| 1254 | static u_int16_t |
| 1255 | show_vty_link_subtlv_max_bw (struct vty *vty, struct te_tlv_header *tlvh) |
| 1256 | { |
| 1257 | struct te_link_subtlv_max_bw *top; |
| 1258 | float fval; |
| 1259 | |
| 1260 | top = (struct te_link_subtlv_max_bw *) tlvh; |
| 1261 | ntohf (&top->value, &fval); |
| 1262 | |
| 1263 | if (vty != NULL) |
| 1264 | vty_out (vty, " Maximum Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE); |
| 1265 | else |
| 1266 | zlog_info (" Maximum Bandwidth: %g (Bytes/sec)", fval); |
| 1267 | |
| 1268 | return TLV_SIZE (tlvh); |
| 1269 | } |
| 1270 | |
| 1271 | static u_int16_t |
| 1272 | show_vty_link_subtlv_max_rsv_bw (struct vty *vty, struct te_tlv_header *tlvh) |
| 1273 | { |
| 1274 | struct te_link_subtlv_max_rsv_bw *top; |
| 1275 | float fval; |
| 1276 | |
| 1277 | top = (struct te_link_subtlv_max_rsv_bw *) tlvh; |
| 1278 | ntohf (&top->value, &fval); |
| 1279 | |
| 1280 | if (vty != NULL) |
| 1281 | vty_out (vty, " Maximum Reservable Bandwidth: %g (Bytes/sec)%s", fval, VTY_NEWLINE); |
| 1282 | else |
| 1283 | zlog_info (" Maximum Reservable Bandwidth: %g (Bytes/sec)", fval); |
| 1284 | |
| 1285 | return TLV_SIZE (tlvh); |
| 1286 | } |
| 1287 | |
| 1288 | static u_int16_t |
| 1289 | show_vty_link_subtlv_unrsv_bw (struct vty *vty, struct te_tlv_header *tlvh) |
| 1290 | { |
| 1291 | struct te_link_subtlv_unrsv_bw *top; |
| 1292 | float fval; |
| 1293 | int i; |
| 1294 | |
| 1295 | top = (struct te_link_subtlv_unrsv_bw *) tlvh; |
| 1296 | for (i = 0; i < 8; i++) |
| 1297 | { |
| 1298 | ntohf (&top->value[i], &fval); |
| 1299 | if (vty != NULL) |
| 1300 | vty_out (vty, " Unreserved Bandwidth (pri %d): %g (Bytes/sec)%s", i, fval, VTY_NEWLINE); |
| 1301 | else |
| 1302 | zlog_info (" Unreserved Bandwidth (pri %d): %g (Bytes/sec)", i, fval); |
| 1303 | } |
| 1304 | |
| 1305 | return TLV_SIZE (tlvh); |
| 1306 | } |
| 1307 | |
| 1308 | static u_int16_t |
| 1309 | show_vty_link_subtlv_rsc_clsclr (struct vty *vty, struct te_tlv_header *tlvh) |
| 1310 | { |
| 1311 | struct te_link_subtlv_rsc_clsclr *top; |
| 1312 | |
| 1313 | top = (struct te_link_subtlv_rsc_clsclr *) tlvh; |
| 1314 | if (vty != NULL) |
| 1315 | vty_out (vty, " Resource class/color: 0x%x%s", (u_int32_t) ntohl (top->value), VTY_NEWLINE); |
| 1316 | else |
| 1317 | zlog_info (" Resource Class/Color: 0x%x", (u_int32_t) ntohl (top->value)); |
| 1318 | |
| 1319 | return TLV_SIZE (tlvh); |
| 1320 | } |
| 1321 | |
| 1322 | static u_int16_t |
| 1323 | show_vty_unknown_tlv (struct vty *vty, struct te_tlv_header *tlvh) |
| 1324 | { |
| 1325 | if (vty != NULL) |
| 1326 | vty_out (vty, " Unknown TLV: [type(0x%x), length(0x%x)]%s", ntohs (tlvh->type), ntohs (tlvh->length), VTY_NEWLINE); |
| 1327 | else |
| 1328 | zlog_info (" Unknown TLV: [type(0x%x), length(0x%x)]", ntohs (tlvh->type), ntohs (tlvh->length)); |
| 1329 | |
| 1330 | return TLV_SIZE (tlvh); |
| 1331 | } |
| 1332 | |
| 1333 | static u_int16_t |
| 1334 | ospf_mpls_te_show_link_subtlv (struct vty *vty, struct te_tlv_header *tlvh0, |
| 1335 | u_int16_t subtotal, u_int16_t total) |
| 1336 | { |
| 1337 | struct te_tlv_header *tlvh, *next; |
| 1338 | u_int16_t sum = subtotal; |
| 1339 | |
| 1340 | for (tlvh = tlvh0; sum < total; tlvh = (next ? next : TLV_HDR_NEXT (tlvh))) |
| 1341 | { |
| 1342 | next = NULL; |
| 1343 | switch (ntohs (tlvh->type)) |
| 1344 | { |
| 1345 | case TE_LINK_SUBTLV_LINK_TYPE: |
| 1346 | sum += show_vty_link_subtlv_link_type (vty, tlvh); |
| 1347 | break; |
| 1348 | case TE_LINK_SUBTLV_LINK_ID: |
| 1349 | sum += show_vty_link_subtlv_link_id (vty, tlvh); |
| 1350 | break; |
| 1351 | case TE_LINK_SUBTLV_LCLIF_IPADDR: |
| 1352 | sum += show_vty_link_subtlv_lclif_ipaddr (vty, tlvh); |
| 1353 | break; |
| 1354 | case TE_LINK_SUBTLV_RMTIF_IPADDR: |
| 1355 | sum += show_vty_link_subtlv_rmtif_ipaddr (vty, tlvh); |
| 1356 | break; |
| 1357 | case TE_LINK_SUBTLV_TE_METRIC: |
| 1358 | sum += show_vty_link_subtlv_te_metric (vty, tlvh); |
| 1359 | break; |
| 1360 | case TE_LINK_SUBTLV_MAX_BW: |
| 1361 | sum += show_vty_link_subtlv_max_bw (vty, tlvh); |
| 1362 | break; |
| 1363 | case TE_LINK_SUBTLV_MAX_RSV_BW: |
| 1364 | sum += show_vty_link_subtlv_max_rsv_bw (vty, tlvh); |
| 1365 | break; |
| 1366 | case TE_LINK_SUBTLV_UNRSV_BW: |
| 1367 | sum += show_vty_link_subtlv_unrsv_bw (vty, tlvh); |
| 1368 | break; |
| 1369 | case TE_LINK_SUBTLV_RSC_CLSCLR: |
| 1370 | sum += show_vty_link_subtlv_rsc_clsclr (vty, tlvh); |
| 1371 | break; |
| 1372 | default: |
| 1373 | sum += show_vty_unknown_tlv (vty, tlvh); |
| 1374 | break; |
| 1375 | } |
| 1376 | } |
| 1377 | return sum; |
| 1378 | } |
| 1379 | |
| 1380 | static void |
| 1381 | ospf_mpls_te_show_info (struct vty *vty, struct ospf_lsa *lsa) |
| 1382 | { |
| 1383 | struct lsa_header *lsah = (struct lsa_header *) lsa->data; |
| 1384 | struct te_tlv_header *tlvh, *next; |
| 1385 | u_int16_t sum, total; |
| 1386 | u_int16_t (* subfunc)(struct vty *vty, struct te_tlv_header *tlvh, |
| 1387 | u_int16_t subtotal, u_int16_t total) = NULL; |
| 1388 | |
| 1389 | sum = 0; |
| 1390 | total = ntohs (lsah->length) - OSPF_LSA_HEADER_SIZE; |
| 1391 | |
| 1392 | for (tlvh = TLV_HDR_TOP (lsah); sum < total; |
| 1393 | tlvh = (next ? next : TLV_HDR_NEXT (tlvh))) |
| 1394 | { |
| 1395 | if (subfunc != NULL) |
| 1396 | { |
| 1397 | sum = (* subfunc)(vty, tlvh, sum, total); |
| 1398 | next = (struct te_tlv_header *)((char *) tlvh + sum); |
| 1399 | subfunc = NULL; |
| 1400 | continue; |
| 1401 | } |
| 1402 | |
| 1403 | next = NULL; |
| 1404 | switch (ntohs (tlvh->type)) |
| 1405 | { |
| 1406 | case TE_TLV_ROUTER_ADDR: |
| 1407 | sum += show_vty_router_addr (vty, tlvh); |
| 1408 | break; |
| 1409 | case TE_TLV_LINK: |
| 1410 | sum += show_vty_link_header (vty, tlvh); |
| 1411 | subfunc = ospf_mpls_te_show_link_subtlv; |
| 1412 | next = tlvh + 1; |
| 1413 | break; |
| 1414 | default: |
| 1415 | sum += show_vty_unknown_tlv (vty, tlvh); |
| 1416 | break; |
| 1417 | } |
| 1418 | } |
| 1419 | return; |
| 1420 | } |
| 1421 | |
| 1422 | static void |
| 1423 | ospf_mpls_te_config_write_router (struct vty *vty) |
| 1424 | { |
| 1425 | if (OspfMplsTE.status == enabled) |
| 1426 | { |
| 1427 | vty_out (vty, " mpls-te%s", VTY_NEWLINE); |
| 1428 | vty_out (vty, " mpls-te router-address %s%s", |
| 1429 | inet_ntoa (OspfMplsTE.router_addr.value), VTY_NEWLINE); |
| 1430 | } |
| 1431 | return; |
| 1432 | } |
| 1433 | |
| 1434 | static void |
| 1435 | ospf_mpls_te_config_write_if (struct vty *vty, struct interface *ifp) |
| 1436 | { |
| 1437 | struct mpls_te_link *lp; |
| 1438 | |
| 1439 | if ((OspfMplsTE.status == enabled) |
| 1440 | && (! if_is_loopback (ifp) && if_is_up (ifp) && ospf_oi_count (ifp) > 0) |
| 1441 | && ((lp = lookup_linkparams_by_ifp (ifp)) != NULL)) |
| 1442 | { |
| 1443 | float fval; |
| 1444 | int i; |
| 1445 | |
| 1446 | vty_out (vty, " mpls-te link metric %u%s", |
| 1447 | (u_int32_t) ntohl (lp->te_metric.value), VTY_NEWLINE); |
| 1448 | |
| 1449 | ntohf (&lp->max_bw.value, &fval); |
| 1450 | if (fval >= MPLS_TE_MINIMUM_BANDWIDTH) |
| 1451 | vty_out (vty, " mpls-te link max-bw %g%s", fval, VTY_NEWLINE); |
| 1452 | |
| 1453 | ntohf (&lp->max_rsv_bw.value, &fval); |
| 1454 | if (fval >= MPLS_TE_MINIMUM_BANDWIDTH) |
| 1455 | vty_out (vty, " mpls-te link max-rsv-bw %g%s", fval, VTY_NEWLINE); |
| 1456 | |
| 1457 | for (i = 0; i < 8; i++) |
| 1458 | { |
| 1459 | ntohf (&lp->unrsv_bw.value[i], &fval); |
| 1460 | if (fval >= MPLS_TE_MINIMUM_BANDWIDTH) |
| 1461 | vty_out (vty, " mpls-te link unrsv-bw %d %g%s", |
| 1462 | i, fval, VTY_NEWLINE); |
| 1463 | } |
| 1464 | |
| 1465 | vty_out (vty, " mpls-te link rsc-clsclr 0x%x%s", |
| 1466 | (u_int32_t) ntohl (lp->rsc_clsclr.value), VTY_NEWLINE); |
| 1467 | } |
| 1468 | return; |
| 1469 | } |
| 1470 | |
| 1471 | /*------------------------------------------------------------------------* |
| 1472 | * Followings are vty command functions. |
| 1473 | *------------------------------------------------------------------------*/ |
| 1474 | |
| 1475 | DEFUN (mpls_te, |
| 1476 | mpls_te_cmd, |
| 1477 | "mpls-te", |
| 1478 | "Configure MPLS-TE parameters\n" |
| 1479 | "Enable the MPLS-TE functionality\n") |
| 1480 | { |
| 1481 | listnode node; |
| 1482 | struct mpls_te_link *lp; |
| 1483 | |
| 1484 | if (OspfMplsTE.status == enabled) |
| 1485 | return CMD_SUCCESS; |
| 1486 | |
| 1487 | if (IS_DEBUG_OSPF_EVENT) |
| 1488 | zlog_info ("MPLS-TE: OFF -> ON"); |
| 1489 | |
| 1490 | OspfMplsTE.status = enabled; |
| 1491 | |
| 1492 | /* |
| 1493 | * Following code is intended to handle two cases; |
| 1494 | * |
| 1495 | * 1) MPLS-TE was disabled at startup time, but now become enabled. |
| 1496 | * 2) MPLS-TE was once enabled then disabled, and now enabled again. |
| 1497 | */ |
| 1498 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 1499 | if ((lp = getdata (node)) != NULL) |
| 1500 | initialize_linkparams (lp); |
| 1501 | |
| 1502 | ospf_mpls_te_foreach_area (ospf_mpls_te_lsa_schedule, REORIGINATE_PER_AREA); |
| 1503 | |
| 1504 | return CMD_SUCCESS; |
| 1505 | } |
| 1506 | |
| 1507 | ALIAS (mpls_te, |
| 1508 | mpls_te_on_cmd, |
| 1509 | "mpls-te on", |
| 1510 | "Configure MPLS-TE parameters\n" |
| 1511 | "Enable the MPLS-TE functionality\n") |
| 1512 | |
| 1513 | DEFUN (no_mpls_te, |
| 1514 | no_mpls_te_cmd, |
| 1515 | "no mpls-te", |
| 1516 | NO_STR |
| 1517 | "Configure MPLS-TE parameters\n" |
| 1518 | "Disable the MPLS-TE functionality\n") |
| 1519 | { |
| 1520 | listnode node; |
| 1521 | struct mpls_te_link *lp; |
| 1522 | |
| 1523 | if (OspfMplsTE.status == disabled) |
| 1524 | return CMD_SUCCESS; |
| 1525 | |
| 1526 | if (IS_DEBUG_OSPF_EVENT) |
| 1527 | zlog_info ("MPLS-TE: ON -> OFF"); |
| 1528 | |
| 1529 | OspfMplsTE.status = disabled; |
| 1530 | |
| 1531 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 1532 | if ((lp = getdata (node)) != NULL) |
| 1533 | if (lp->area != NULL) |
| 1534 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 1535 | ospf_mpls_te_lsa_schedule (lp, FLUSH_THIS_LSA); |
| 1536 | |
| 1537 | return CMD_SUCCESS; |
| 1538 | } |
| 1539 | |
| 1540 | DEFUN (mpls_te_router_addr, |
| 1541 | mpls_te_router_addr_cmd, |
| 1542 | "mpls-te router-address A.B.C.D", |
| 1543 | "MPLS-TE specific commands\n" |
| 1544 | "Stable IP address of the advertising router\n" |
| 1545 | "MPLS-TE router address in IPv4 address format\n") |
| 1546 | { |
| 1547 | struct te_tlv_router_addr *ra = &OspfMplsTE.router_addr; |
| 1548 | struct in_addr value; |
| 1549 | |
| 1550 | if (! inet_aton (argv[0], &value)) |
| 1551 | { |
| 1552 | vty_out (vty, "Please specify Router-Addr by A.B.C.D%s", VTY_NEWLINE); |
| 1553 | return CMD_WARNING; |
| 1554 | } |
| 1555 | |
| 1556 | if (ntohs (ra->header.type) == 0 |
| 1557 | || ntohl (ra->value.s_addr) != ntohl (value.s_addr)) |
| 1558 | { |
| 1559 | listnode node; |
| 1560 | struct mpls_te_link *lp; |
| 1561 | int need_to_reoriginate = 0; |
| 1562 | |
| 1563 | set_mpls_te_router_addr (value); |
| 1564 | |
| 1565 | if (OspfMplsTE.status == disabled) |
| 1566 | goto out; |
| 1567 | |
| 1568 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 1569 | { |
| 1570 | if ((lp = getdata (node)) == NULL) |
| 1571 | continue; |
| 1572 | if (lp->area == NULL) |
| 1573 | continue; |
| 1574 | |
| 1575 | if ((lp->flags & LPFLG_LSA_ENGAGED) == 0) |
| 1576 | { |
| 1577 | need_to_reoriginate = 1; |
| 1578 | break; |
| 1579 | } |
| 1580 | } |
| 1581 | for (node = listhead (OspfMplsTE.iflist); node; nextnode (node)) |
| 1582 | { |
| 1583 | if ((lp = getdata (node)) == NULL) |
| 1584 | continue; |
| 1585 | if (lp->area == NULL) |
| 1586 | continue; |
| 1587 | |
| 1588 | if (need_to_reoriginate) |
| 1589 | lp->flags |= LPFLG_LSA_FORCED_REFRESH; |
| 1590 | else |
| 1591 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 1592 | } |
| 1593 | |
| 1594 | if (need_to_reoriginate) |
| 1595 | ospf_mpls_te_foreach_area ( |
| 1596 | ospf_mpls_te_lsa_schedule, REORIGINATE_PER_AREA); |
| 1597 | } |
| 1598 | out: |
| 1599 | return CMD_SUCCESS; |
| 1600 | } |
| 1601 | |
| 1602 | DEFUN (mpls_te_link_metric, |
| 1603 | mpls_te_link_metric_cmd, |
| 1604 | "mpls-te link metric <0-4294967295>", |
| 1605 | "MPLS-TE specific commands\n" |
| 1606 | "Configure MPLS-TE link parameters\n" |
| 1607 | "Link metric for MPLS-TE purpose\n" |
| 1608 | "Metric\n") |
| 1609 | { |
| 1610 | struct interface *ifp = (struct interface *) vty->index; |
| 1611 | struct mpls_te_link *lp; |
| 1612 | u_int32_t value; |
| 1613 | |
| 1614 | if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL) |
| 1615 | { |
| 1616 | vty_out (vty, "mpls_te_link_metric: Something wrong!%s", VTY_NEWLINE); |
| 1617 | return CMD_WARNING; |
| 1618 | } |
| 1619 | |
| 1620 | value = strtoul (argv[0], NULL, 10); |
| 1621 | |
| 1622 | if (ntohs (lp->te_metric.header.type) == 0 |
| 1623 | || ntohl (lp->te_metric.value) != value) |
| 1624 | { |
| 1625 | set_linkparams_te_metric (lp, value); |
| 1626 | |
| 1627 | if (OspfMplsTE.status == enabled) |
| 1628 | if (lp->area != NULL) |
| 1629 | { |
| 1630 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 1631 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 1632 | else |
| 1633 | ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA); |
| 1634 | } |
| 1635 | } |
| 1636 | return CMD_SUCCESS; |
| 1637 | } |
| 1638 | |
| 1639 | DEFUN (mpls_te_link_maxbw, |
| 1640 | mpls_te_link_maxbw_cmd, |
| 1641 | "mpls-te link max-bw BANDWIDTH", |
| 1642 | "MPLS-TE specific commands\n" |
| 1643 | "Configure MPLS-TE link parameters\n" |
| 1644 | "Maximum bandwidth that can be used\n" |
| 1645 | "Bytes/second (IEEE floating point format)\n") |
| 1646 | { |
| 1647 | struct interface *ifp = (struct interface *) vty->index; |
| 1648 | struct mpls_te_link *lp; |
| 1649 | float f1, f2; |
| 1650 | |
| 1651 | if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL) |
| 1652 | { |
| 1653 | vty_out (vty, "mpls_te_link_maxbw: Something wrong!%s", VTY_NEWLINE); |
| 1654 | return CMD_WARNING; |
| 1655 | } |
| 1656 | |
| 1657 | ntohf (&lp->max_bw.value, &f1); |
| 1658 | if (sscanf (argv[0], "%g", &f2) != 1) |
| 1659 | { |
| 1660 | vty_out (vty, "mpls_te_link_maxbw: fscanf: %s%s", strerror (errno), VTY_NEWLINE); |
| 1661 | return CMD_WARNING; |
| 1662 | } |
| 1663 | |
| 1664 | if (ntohs (lp->max_bw.header.type) == 0 |
| 1665 | || f1 != f2) |
| 1666 | { |
| 1667 | set_linkparams_max_bw (lp, &f2); |
| 1668 | |
| 1669 | if (OspfMplsTE.status == enabled) |
| 1670 | if (lp->area != NULL) |
| 1671 | { |
| 1672 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 1673 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 1674 | else |
| 1675 | ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA); |
| 1676 | } |
| 1677 | } |
| 1678 | return CMD_SUCCESS; |
| 1679 | } |
| 1680 | |
| 1681 | DEFUN (mpls_te_link_max_rsv_bw, |
| 1682 | mpls_te_link_max_rsv_bw_cmd, |
| 1683 | "mpls-te link max-rsv-bw BANDWIDTH", |
| 1684 | "MPLS-TE specific commands\n" |
| 1685 | "Configure MPLS-TE link parameters\n" |
| 1686 | "Maximum bandwidth that may be reserved\n" |
| 1687 | "Bytes/second (IEEE floating point format)\n") |
| 1688 | { |
| 1689 | struct interface *ifp = (struct interface *) vty->index; |
| 1690 | struct mpls_te_link *lp; |
| 1691 | float f1, f2; |
| 1692 | |
| 1693 | if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL) |
| 1694 | { |
| 1695 | vty_out (vty, "mpls_te_link_max_rsv_bw: Something wrong!%s", VTY_NEWLINE); |
| 1696 | return CMD_WARNING; |
| 1697 | } |
| 1698 | |
| 1699 | ntohf (&lp->max_rsv_bw.value, &f1); |
| 1700 | if (sscanf (argv[0], "%g", &f2) != 1) |
| 1701 | { |
| 1702 | vty_out (vty, "mpls_te_link_max_rsv_bw: fscanf: %s%s", strerror (errno), VTY_NEWLINE); |
| 1703 | return CMD_WARNING; |
| 1704 | } |
| 1705 | |
| 1706 | if (ntohs (lp->max_rsv_bw.header.type) == 0 |
| 1707 | || f1 != f2) |
| 1708 | { |
| 1709 | set_linkparams_max_rsv_bw (lp, &f2); |
| 1710 | |
| 1711 | if (OspfMplsTE.status == enabled) |
| 1712 | if (lp->area != NULL) |
| 1713 | { |
| 1714 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 1715 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 1716 | else |
| 1717 | ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA); |
| 1718 | } |
| 1719 | } |
| 1720 | return CMD_SUCCESS; |
| 1721 | } |
| 1722 | |
| 1723 | DEFUN (mpls_te_link_unrsv_bw, |
| 1724 | mpls_te_link_unrsv_bw_cmd, |
| 1725 | "mpls-te link unrsv-bw <0-7> BANDWIDTH", |
| 1726 | "MPLS-TE specific commands\n" |
| 1727 | "Configure MPLS-TE link parameters\n" |
| 1728 | "Unreserved bandwidth at each priority level\n" |
| 1729 | "Priority\n" |
| 1730 | "Bytes/second (IEEE floating point format)\n") |
| 1731 | { |
| 1732 | struct interface *ifp = (struct interface *) vty->index; |
| 1733 | struct mpls_te_link *lp; |
| 1734 | int priority; |
| 1735 | float f1, f2; |
| 1736 | |
| 1737 | if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL) |
| 1738 | { |
| 1739 | vty_out (vty, "mpls_te_link_unrsv_bw: Something wrong!%s", VTY_NEWLINE); |
| 1740 | return CMD_WARNING; |
| 1741 | } |
| 1742 | |
| 1743 | /* We don't have to consider about range check here. */ |
| 1744 | if (sscanf (argv[0], "%d", &priority) != 1) |
| 1745 | { |
| 1746 | vty_out (vty, "mpls_te_link_unrsv_bw: fscanf: %s%s", strerror (errno), VTY_NEWLINE); |
| 1747 | return CMD_WARNING; |
| 1748 | } |
| 1749 | |
| 1750 | ntohf (&lp->unrsv_bw.value [priority], &f1); |
| 1751 | if (sscanf (argv[1], "%g", &f2) != 1) |
| 1752 | { |
| 1753 | vty_out (vty, "mpls_te_link_unrsv_bw: fscanf: %s%s", strerror (errno), VTY_NEWLINE); |
| 1754 | return CMD_WARNING; |
| 1755 | } |
| 1756 | |
| 1757 | if (ntohs (lp->unrsv_bw.header.type) == 0 |
| 1758 | || f1 != f2) |
| 1759 | { |
| 1760 | set_linkparams_unrsv_bw (lp, priority, &f2); |
| 1761 | |
| 1762 | if (OspfMplsTE.status == enabled) |
| 1763 | if (lp->area != NULL) |
| 1764 | { |
| 1765 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 1766 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 1767 | else |
| 1768 | ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA); |
| 1769 | } |
| 1770 | } |
| 1771 | return CMD_SUCCESS; |
| 1772 | } |
| 1773 | |
| 1774 | DEFUN (mpls_te_link_rsc_clsclr, |
| 1775 | mpls_te_link_rsc_clsclr_cmd, |
| 1776 | "mpls-te link rsc-clsclr BITPATTERN", |
| 1777 | "MPLS-TE specific commands\n" |
| 1778 | "Configure MPLS-TE link parameters\n" |
| 1779 | "Administrative group membership\n" |
| 1780 | "32-bit Hexadecimal value (ex. 0xa1)\n") |
| 1781 | { |
| 1782 | struct interface *ifp = (struct interface *) vty->index; |
| 1783 | struct mpls_te_link *lp; |
| 1784 | unsigned long value; |
| 1785 | |
| 1786 | if ((lp = lookup_linkparams_by_ifp (ifp)) == NULL) |
| 1787 | { |
| 1788 | vty_out (vty, "mpls_te_link_rsc_clsclr: Something wrong!%s", VTY_NEWLINE); |
| 1789 | return CMD_WARNING; |
| 1790 | } |
| 1791 | |
| 1792 | if (sscanf (argv[0], "0x%lx", &value) != 1) |
| 1793 | { |
| 1794 | vty_out (vty, "mpls_te_link_rsc_clsclr: fscanf: %s%s", strerror (errno), VTY_NEWLINE); |
| 1795 | return CMD_WARNING; |
| 1796 | } |
| 1797 | |
| 1798 | if (ntohs (lp->rsc_clsclr.header.type) == 0 |
| 1799 | || ntohl (lp->rsc_clsclr.value) != value) |
| 1800 | { |
| 1801 | set_linkparams_rsc_clsclr (lp, value); |
| 1802 | |
| 1803 | if (OspfMplsTE.status == enabled) |
| 1804 | if (lp->area != NULL) |
| 1805 | { |
| 1806 | if (lp->flags & LPFLG_LSA_ENGAGED) |
| 1807 | ospf_mpls_te_lsa_schedule (lp, REFRESH_THIS_LSA); |
| 1808 | else |
| 1809 | ospf_mpls_te_lsa_schedule (lp, REORIGINATE_PER_AREA); |
| 1810 | } |
| 1811 | } |
| 1812 | return CMD_SUCCESS; |
| 1813 | } |
| 1814 | |
| 1815 | DEFUN (show_mpls_te_router, |
| 1816 | show_mpls_te_router_cmd, |
| 1817 | "show mpls-te router", |
| 1818 | SHOW_STR |
| 1819 | "MPLS-TE information\n" |
| 1820 | "Router information\n") |
| 1821 | { |
| 1822 | if (OspfMplsTE.status == enabled) |
| 1823 | { |
| 1824 | vty_out (vty, "--- MPLS-TE router parameters ---%s", |
| 1825 | VTY_NEWLINE); |
| 1826 | |
| 1827 | if (ntohs (OspfMplsTE.router_addr.header.type) != 0) |
| 1828 | show_vty_router_addr (vty, &OspfMplsTE.router_addr.header); |
| 1829 | else if (vty != NULL) |
| 1830 | vty_out (vty, " N/A%s", VTY_NEWLINE); |
| 1831 | } |
| 1832 | return CMD_SUCCESS; |
| 1833 | } |
| 1834 | |
| 1835 | static void |
| 1836 | show_mpls_te_link_sub (struct vty *vty, struct interface *ifp) |
| 1837 | { |
| 1838 | struct mpls_te_link *lp; |
| 1839 | struct te_tlv_header *tlvh; |
| 1840 | |
| 1841 | if ((OspfMplsTE.status == enabled) |
| 1842 | && (! if_is_loopback (ifp) && if_is_up (ifp) && ospf_oi_count (ifp) > 0) |
| 1843 | && ((lp = lookup_linkparams_by_ifp (ifp)) != NULL)) |
| 1844 | { |
| 1845 | vty_out (vty, "-- MPLS-TE link parameters for %s --%s", |
| 1846 | ifp->name, VTY_NEWLINE); |
| 1847 | |
| 1848 | show_vty_link_subtlv_link_type (vty, &lp->link_type.header); |
| 1849 | show_vty_link_subtlv_link_id (vty, &lp->link_id.header); |
| 1850 | |
| 1851 | if ((tlvh = (struct te_tlv_header *) lp->lclif_ipaddr) != NULL) |
| 1852 | show_vty_link_subtlv_lclif_ipaddr (vty, tlvh); |
| 1853 | if ((tlvh = (struct te_tlv_header *) lp->rmtif_ipaddr) != NULL) |
| 1854 | show_vty_link_subtlv_rmtif_ipaddr (vty, tlvh); |
| 1855 | |
| 1856 | show_vty_link_subtlv_te_metric (vty, &lp->te_metric.header); |
| 1857 | |
| 1858 | show_vty_link_subtlv_max_bw (vty, &lp->max_bw.header); |
| 1859 | show_vty_link_subtlv_max_rsv_bw (vty, &lp->max_rsv_bw.header); |
| 1860 | show_vty_link_subtlv_unrsv_bw (vty, &lp->unrsv_bw.header); |
| 1861 | show_vty_link_subtlv_rsc_clsclr (vty, &lp->rsc_clsclr.header); |
| 1862 | } |
| 1863 | else |
| 1864 | { |
| 1865 | vty_out (vty, " %s: MPLS-TE is disabled on this interface%s", |
| 1866 | ifp->name, VTY_NEWLINE); |
| 1867 | } |
| 1868 | |
| 1869 | return; |
| 1870 | } |
| 1871 | |
| 1872 | DEFUN (show_mpls_te_link, |
| 1873 | show_mpls_te_link_cmd, |
| 1874 | "show mpls-te interface [INTERFACE]", |
| 1875 | SHOW_STR |
| 1876 | "MPLS-TE information\n" |
| 1877 | "Interface information\n" |
| 1878 | "Interface name\n") |
| 1879 | { |
| 1880 | struct interface *ifp; |
| 1881 | listnode node; |
| 1882 | |
| 1883 | /* Show All Interfaces. */ |
| 1884 | if (argc == 0) |
| 1885 | for (node = listhead (iflist); node; nextnode (node)) |
| 1886 | show_mpls_te_link_sub (vty, node->data); |
| 1887 | /* Interface name is specified. */ |
| 1888 | else |
| 1889 | { |
| 1890 | if ((ifp = if_lookup_by_name (argv[0])) == NULL) |
| 1891 | vty_out (vty, "No such interface name%s", VTY_NEWLINE); |
| 1892 | else |
| 1893 | show_mpls_te_link_sub (vty, ifp); |
| 1894 | } |
| 1895 | |
| 1896 | return CMD_SUCCESS; |
| 1897 | } |
| 1898 | |
| 1899 | static void |
| 1900 | ospf_mpls_te_register_vty (void) |
| 1901 | { |
| 1902 | install_element (VIEW_NODE, &show_mpls_te_router_cmd); |
| 1903 | install_element (VIEW_NODE, &show_mpls_te_link_cmd); |
| 1904 | install_element (ENABLE_NODE, &show_mpls_te_router_cmd); |
| 1905 | install_element (ENABLE_NODE, &show_mpls_te_link_cmd); |
| 1906 | |
| 1907 | install_element (OSPF_NODE, &mpls_te_cmd); |
| 1908 | install_element (OSPF_NODE, &no_mpls_te_cmd); |
| 1909 | install_element (OSPF_NODE, &mpls_te_on_cmd); |
| 1910 | install_element (OSPF_NODE, &mpls_te_router_addr_cmd); |
| 1911 | |
| 1912 | install_element (INTERFACE_NODE, &mpls_te_link_metric_cmd); |
| 1913 | install_element (INTERFACE_NODE, &mpls_te_link_maxbw_cmd); |
| 1914 | install_element (INTERFACE_NODE, &mpls_te_link_max_rsv_bw_cmd); |
| 1915 | install_element (INTERFACE_NODE, &mpls_te_link_unrsv_bw_cmd); |
| 1916 | install_element (INTERFACE_NODE, &mpls_te_link_rsc_clsclr_cmd); |
| 1917 | |
| 1918 | return; |
| 1919 | } |
| 1920 | |
| 1921 | #endif /* HAVE_OSPF_TE */ |