proto/ospf/config.Y

   1 /*
   2  *      BIRD -- OSPF Configuration
   3  *
   4  *      (c) 1999--2004 Ondrej Filip <feela@network.cz>
   5  *
   6  *      Can be freely distributed and used under the terms of the GNU GPL.
   7  */
   8
   9 CF_HDR
  10
  11 #include "proto/ospf/ospf.h"
  12
  13 CF_DEFINES
  14
  15 #define OSPF_CFG ((struct ospf_config *) this_proto)
  16 #define OSPF_PATT ((struct ospf_iface_patt *) this_ipatt)
  17
  18 static struct ospf_area_config *this_area;
  19 static struct nbma_node *this_nbma;
  20 static list *this_nets;
  21 static struct area_net_config *this_pref;
  22 static struct ospf_stubnet_config *this_stubnet;
  23
  24 static inline int ospf_cfg_is_v2(void) { return OSPF_CFG->ospf2; }
  25 static inline int ospf_cfg_is_v3(void) { return ! OSPF_CFG->ospf2; }
  26
  27 static void
  28 ospf_iface_finish(void)
  29 {
  30   struct ospf_iface_patt *ip = OSPF_PATT;
  31
  32   if (ip->deadint == 0)
  33     ip->deadint = ip->deadc * ip->helloint;
  34
  35   if (ip->waitint == 0)
  36     ip->waitint = ip->deadc * ip->helloint;
  37
  38   ip->passwords = get_passwords();
  39
  40   if ((ip->autype == OSPF_AUTH_CRYPT) && (ip->helloint < 5))
  41     log(L_WARN "Hello or poll interval less that 5 makes cryptographic authenication prone to replay attacks");
  42
  43   if ((ip->autype == OSPF_AUTH_NONE) && (ip->passwords != NULL))
  44     log(L_WARN "Password option without authentication option does not make sense");
  45
  46   if (ip->passwords)
  47   {
  48     struct password_item *pass;
  49     WALK_LIST(pass, *ip->passwords)
  50     {
  51       if (pass->alg && (ip->autype != OSPF_AUTH_CRYPT))
  52         cf_error("Password algorithm option requires cryptographic authentication");
  53
  54       /* Set default OSPF crypto algorithms */
  55       if (!pass->alg && (ip->autype == OSPF_AUTH_CRYPT))
  56         pass->alg = ospf_cfg_is_v2() ? ALG_MD5 : ALG_HMAC_SHA256;
  57     }
  58   }
  59 }
  60
  61 static void
  62 ospf_area_finish(void)
  63 {
  64   if ((this_area->areaid == 0) && (this_area->type != OPT_E))
  65     cf_error("Backbone area cannot be stub/NSSA");
  66
  67   if (this_area->summary && (this_area->type == OPT_E))
  68     cf_error("Only stub/NSSA areas can use summary propagation");
  69
  70   if (this_area->default_nssa && ((this_area->type != OPT_N) || ! this_area->summary))
  71     cf_error("Only NSSA areas with summary propagation can use NSSA default route");
  72
  73   if ((this_area->default_cost & LSA_EXT3_EBIT) && ! this_area->default_nssa)
  74     cf_error("Only NSSA default route can use type 2 metric");
  75 }
  76
  77 static void
  78 ospf_proto_finish(void)
  79 {
  80   struct ospf_config *cf = OSPF_CFG;
  81   struct ospf_area_config *ac;
  82   struct ospf_iface_patt *ic;
  83
  84   /* Define default channel */
  85   if (EMPTY_LIST(this_proto->channels))
  86   {
  87     this_proto->net_type = ospf_cfg_is_v2() ? NET_IP4 : NET_IP6;
  88     channel_config_new(NULL, this_proto->net_type, this_proto);
  89   }
  90
  91   /* Propagate global instance ID to interfaces */
  92   if (cf->instance_id_set)
  93   {
  94     WALK_LIST(ac, cf->area_list)
  95       WALK_LIST(ic, ac->patt_list)
  96         if (!ic->instance_id_set)
  97         { ic->instance_id = cf->instance_id; ic->instance_id_set = 1; }
  98
  99     WALK_LIST(ic, cf->vlink_list)
 100       if (!ic->instance_id_set)
 101       { ic->instance_id = cf->instance_id; ic->instance_id_set = 1; }
 102   }
 103
 104   if (ospf_cfg_is_v3())
 105   {
 106     uint ipv4 = (this_proto->net_type == NET_IP4);
 107     uint base = (ipv4 ? 64 : 0) + (cf->af_mc ? 32 : 0);
 108
 109     /* RFC 5838 - OSPFv3-AF */
 110     if (cf->af_ext)
 111     {
 112       /* RFC 5838 2.1 - instance IDs based on AFs */
 113       WALK_LIST(ac, cf->area_list)
 114         WALK_LIST(ic, ac->patt_list)
 115         {
 116           if (!ic->instance_id_set)
 117             ic->instance_id = base;
 118           else if (ic->instance_id >= 128)
 119             log(L_WARN "Instance ID %d from unassigned/private range", ic->instance_id);
 120           else if ((ic->instance_id < base) || (ic->instance_id >= (base + 32)))
 121             cf_error("Instance ID %d invalid for given channel type", ic->instance_id);
 122         }
 123
 124       /* RFC 5838 2.8 - vlinks limited to IPv6 unicast */
 125       if ((ipv4 || cf->af_mc) && !EMPTY_LIST(cf->vlink_list))
 126         cf_error("Vlinks not supported in AFs other than IPv6 unicast");
 127     }
 128     else
 129     {
 130       if (ipv4 || cf->af_mc)
 131         cf_error("Different channel type");
 132     }
 133   }
 134
 135   if (EMPTY_LIST(cf->area_list))
 136     cf_error("No configured areas in OSPF");
 137
 138   int areano = 0;
 139   int backbone = 0;
 140   int nssa = 0;
 141   WALK_LIST(ac, cf->area_list)
 142   {
 143     areano++;
 144     if (ac->areaid == 0)
 145       backbone = 1;
 146     if (ac->type == OPT_N)
 147       nssa = 1;
 148   }
 149
 150   cf->abr = areano > 1;
 151
 152   /* Route export or NSSA translation (RFC 3101 3.1) */
 153   cf->asbr = (proto_cf_main_channel(this_proto)->out_filter != FILTER_REJECT) || (nssa && cf->abr);
 154
 155   if (cf->abr && !backbone)
 156   {
 157     struct ospf_area_config *ac = cfg_allocz(sizeof(struct ospf_area_config));
 158     ac->type = OPT_E; /* Backbone is non-stub */
 159     add_head(&cf->area_list, NODE ac);
 160     init_list(&ac->patt_list);
 161     init_list(&ac->net_list);
 162     init_list(&ac->enet_list);
 163     init_list(&ac->stubnet_list);
 164   }
 165
 166   if (!cf->abr && !EMPTY_LIST(cf->vlink_list))
 167     cf_error("Vlinks cannot be used on single area router");
 168
 169   if (cf->asbr && (areano == 1) && (this_area->type == 0))
 170     cf_error("ASBR must be in non-stub area");
 171 }
 172
 173 static inline void
 174 ospf_check_defcost(int cost)
 175 {
 176   if ((cost <= 0) || (cost >= LSINFINITY))
 177    cf_error("Default cost must be in range 1-%u", LSINFINITY-1);
 178 }
 179
 180 static inline void
 181 ospf_check_auth(void)
 182 {
 183   if (ospf_cfg_is_v3())
 184     cf_error("Authentication not supported in OSPFv3");
 185 }
 186
 187
 188 CF_DECLS
 189
 190 CF_KEYWORDS(OSPF, V2, V3, OSPF_METRIC1, OSPF_METRIC2, OSPF_TAG, OSPF_ROUTER_ID)
 191 CF_KEYWORDS(AREA, NEIGHBORS, RFC1583COMPAT, STUB, TICK, COST, COST2, RETRANSMIT)
 192 CF_KEYWORDS(HELLO, TRANSMIT, PRIORITY, DEAD, TYPE, BROADCAST, BCAST, DEFAULT)
 193 CF_KEYWORDS(NONBROADCAST, NBMA, POINTOPOINT, PTP, POINTOMULTIPOINT, PTMP)
 194 CF_KEYWORDS(NONE, SIMPLE, AUTHENTICATION, STRICT, CRYPTOGRAPHIC, TTL, SECURITY)
 195 CF_KEYWORDS(ELIGIBLE, POLL, NETWORKS, HIDDEN, VIRTUAL, CHECK, LINK, ONLY, BFD)
 196 CF_KEYWORDS(RX, BUFFER, LARGE, NORMAL, STUBNET, HIDDEN, SUMMARY, TAG, EXTERNAL)
 197 CF_KEYWORDS(WAIT, DELAY, LSADB, ECMP, LIMIT, WEIGHT, NSSA, TRANSLATOR, STABILITY)
 198 CF_KEYWORDS(GLOBAL, LSID, ROUTER, SELF, INSTANCE, REAL, NETMASK, TX, PRIORITY, LENGTH)
 199 CF_KEYWORDS(SECONDARY, MERGE, LSA, SUPPRESSION, MULTICAST, RFC5838)
 200
 201 %type <ld> lsadb_args
 202 %type <i> ospf_variant ospf_af_mc nbma_eligible
 203 %type <cc> ospf_channel_start ospf_channel
 204
 205 CF_GRAMMAR
 206
 207 CF_ADDTO(proto, ospf_proto '}' { ospf_proto_finish(); } )
 208
 209 ospf_variant:
 210    OSPF    { $$ = 1; }
 211  | OSPF V2 { $$ = 1; }
 212  | OSPF V3 { $$ = 0; }
 213  ;
 214
 215 ospf_proto_start: proto_start ospf_variant
 216 {
 217   this_proto = proto_config_new(&proto_ospf, $1);
 218   this_proto->net_type = $2 ? NET_IP4 : 0;
 219
 220   init_list(&OSPF_CFG->area_list);
 221   init_list(&OSPF_CFG->vlink_list);
 222   OSPF_CFG->ecmp = rt_default_ecmp;
 223   OSPF_CFG->tick = OSPF_DEFAULT_TICK;
 224   OSPF_CFG->ospf2 = $2;
 225   OSPF_CFG->af_ext = !$2;
 226 };
 227
 228 ospf_proto:
 229    ospf_proto_start proto_name '{'
 230  | ospf_proto ospf_proto_item ';'
 231  ;
 232
 233 ospf_af_mc:
 234              { $$ = 0; }
 235  | MULTICAST { $$ = 1; }
 236  ;
 237
 238 /* We redefine proto_channel to add multicast flag */
 239 ospf_channel_start: net_type ospf_af_mc
 240 {
 241   $$ = this_channel = channel_config_new(NULL, $1, this_proto);
 242
 243   /* Save the multicast flag */
 244   if (this_channel == proto_cf_main_channel(this_proto))
 245     OSPF_CFG->af_mc = $2;
 246 };
 247
 248 ospf_channel: ospf_channel_start channel_opt_list channel_end;
 249
 250 ospf_proto_item:
 251    proto_item
 252  | ospf_channel { this_proto->net_type = $1->net_type; }
 253  | RFC1583COMPAT bool { OSPF_CFG->rfc1583 = $2; }
 254  | RFC5838 bool { OSPF_CFG->af_ext = $2; if (!ospf_cfg_is_v3()) cf_error("RFC5838 option requires OSPFv3"); }
 255  | STUB ROUTER bool { OSPF_CFG->stub_router = $3; }
 256  | ECMP bool { OSPF_CFG->ecmp = $2 ? OSPF_DEFAULT_ECMP_LIMIT : 0; }
 257  | ECMP bool LIMIT expr { OSPF_CFG->ecmp = $2 ? $4 : 0; }
 258  | MERGE EXTERNAL bool { OSPF_CFG->merge_external = $3; }
 259  | TICK expr { OSPF_CFG->tick = $2; if($2 <= 0) cf_error("Tick must be greater than zero"); }
 260  | INSTANCE ID expr { OSPF_CFG->instance_id = $3; OSPF_CFG->instance_id_set = 1; if ($3 > 255) cf_error("Instance ID must be in range 0-255"); }
 261  | ospf_area
 262  ;
 263
 264 ospf_area_start: AREA idval {
 265   this_area = cfg_allocz(sizeof(struct ospf_area_config));
 266   add_tail(&OSPF_CFG->area_list, NODE this_area);
 267   this_area->areaid = $2;
 268   this_area->default_cost = OSPF_DEFAULT_STUB_COST;
 269   this_area->type = OPT_E;
 270   this_area->transint = OSPF_DEFAULT_TRANSINT;
 271
 272   init_list(&this_area->patt_list);
 273   init_list(&this_area->net_list);
 274   init_list(&this_area->enet_list);
 275   init_list(&this_area->stubnet_list);
 276  }
 277  ;
 278
 279 ospf_area: ospf_area_start '{' ospf_area_opts '}' { ospf_area_finish(); }
 280  ;
 281
 282 ospf_area_opts:
 283    /* empty */
 284  | ospf_area_opts ospf_area_item ';'
 285  ;
 286
 287 ospf_area_item:
 288    STUB bool { this_area->type = $2 ? 0 : OPT_E; /* We should remove the option */ }
 289  | NSSA { this_area->type = OPT_N; }
 290  | SUMMARY bool { this_area->summary = $2; }
 291  | DEFAULT NSSA bool { this_area->default_nssa = $3; }
 292  | DEFAULT COST expr { this_area->default_cost = $3; ospf_check_defcost($3); }
 293  | DEFAULT COST2 expr { this_area->default_cost = $3 | LSA_EXT3_EBIT; ospf_check_defcost($3); }
 294  | STUB COST expr { this_area->default_cost = $3; ospf_check_defcost($3); }
 295  | TRANSLATOR bool { this_area->translator = $2; }
 296  | TRANSLATOR STABILITY expr { this_area->transint = $3; }
 297  | NETWORKS { this_nets = &this_area->net_list; } '{' pref_list '}'
 298  | EXTERNAL { this_nets = &this_area->enet_list; } '{' pref_list '}'
 299  | STUBNET ospf_stubnet
 300  | INTERFACE ospf_iface
 301  | ospf_vlink
 302  ;
 303
 304 ospf_stubnet:
 305    ospf_stubnet_start '{' ospf_stubnet_opts '}'
 306  | ospf_stubnet_start
 307  ;
 308
 309 ospf_stubnet_start:
 310    net_ip {
 311      this_stubnet = cfg_allocz(sizeof(struct ospf_stubnet_config));
 312      add_tail(&this_area->stubnet_list, NODE this_stubnet);
 313      this_stubnet->prefix = $1;
 314      this_stubnet->cost = COST_D;
 315    }
 316  ;
 317
 318 ospf_stubnet_opts:
 319    /* empty */
 320  | ospf_stubnet_opts ospf_stubnet_item ';'
 321  ;
 322
 323 ospf_stubnet_item:
 324    HIDDEN bool { this_stubnet->hidden = $2; }
 325  | SUMMARY bool { this_stubnet->summary = $2; }
 326  | COST expr { this_stubnet->cost = $2; }
 327  ;
 328
 329 ospf_vlink:
 330    ospf_vlink_start ospf_instance_id '{' ospf_vlink_opts '}' { ospf_iface_finish(); }
 331  | ospf_vlink_start ospf_instance_id { ospf_iface_finish(); }
 332  ;
 333
 334 ospf_vlink_opts:
 335    /* empty */
 336  | ospf_vlink_opts ospf_vlink_item ';'
 337  ;
 338
 339 ospf_vlink_item:
 340  | HELLO expr { OSPF_PATT->helloint = $2 ; if (($2<=0) || ($2>65535)) cf_error("Hello interval must be in range 1-65535"); }
 341  | RETRANSMIT expr { OSPF_PATT->rxmtint = $2 ; if ($2<=1) cf_error("Retransmit int must be greater than one"); }
 342  | TRANSMIT DELAY expr { OSPF_PATT->inftransdelay = $3 ; if (($3<=0) || ($3>65535)) cf_error("Transmit delay must be in range 1-65535"); }
 343  | WAIT expr { OSPF_PATT->waitint = $2 ; if ($2<=1) cf_error("Wait interval must be greater than one"); }
 344  | DEAD expr { OSPF_PATT->deadint = $2 ; if ($2<=1) cf_error("Dead interval must be greater than one"); }
 345  | DEAD COUNT expr { OSPF_PATT->deadc = $3 ; if ($3<=1) cf_error("Dead count must be greater than one"); }
 346  | AUTHENTICATION NONE { OSPF_PATT->autype = OSPF_AUTH_NONE;  }
 347  | AUTHENTICATION SIMPLE { OSPF_PATT->autype = OSPF_AUTH_SIMPLE; ospf_check_auth(); }
 348  | AUTHENTICATION CRYPTOGRAPHIC { OSPF_PATT->autype = OSPF_AUTH_CRYPT; ospf_check_auth(); }
 349  | password_list { ospf_check_auth(); }
 350  ;
 351
 352 ospf_vlink_start: VIRTUAL LINK idval
 353  {
 354   if (this_area->areaid == 0) cf_error("Virtual link cannot be in backbone");
 355   this_ipatt = cfg_allocz(sizeof(struct ospf_iface_patt));
 356   add_tail(&OSPF_CFG->vlink_list, NODE this_ipatt);
 357   init_list(&this_ipatt->ipn_list);
 358   OSPF_PATT->voa = this_area->areaid;
 359   OSPF_PATT->vid = $3;
 360   OSPF_PATT->helloint = HELLOINT_D;
 361   OSPF_PATT->rxmtint = RXMTINT_D;
 362   OSPF_PATT->inftransdelay = INFTRANSDELAY_D;
 363   OSPF_PATT->deadc = DEADC_D;
 364   OSPF_PATT->type = OSPF_IT_VLINK;
 365   init_list(&OSPF_PATT->nbma_list);
 366   reset_passwords();
 367  }
 368 ;
 369
 370 ospf_iface_item:
 371    COST expr { OSPF_PATT->cost = $2 ; if (($2<=0) || ($2>65535)) cf_error("Cost must be in range 1-65535"); }
 372  | HELLO expr { OSPF_PATT->helloint = $2 ; if (($2<=0) || ($2>65535)) cf_error("Hello interval must be in range 1-65535"); }
 373  | POLL expr { OSPF_PATT->pollint = $2 ; if ($2<=0) cf_error("Poll int must be greater than zero"); }
 374  | RETRANSMIT expr { OSPF_PATT->rxmtint = $2 ; if ($2<=1) cf_error("Retransmit int must be greater than one"); }
 375  | WAIT expr { OSPF_PATT->waitint = $2 ; if ($2<=1) cf_error("Wait interval must be greater than one"); }
 376  | DEAD expr { OSPF_PATT->deadint = $2 ; if ($2<=1) cf_error("Dead interval must be greater than one"); }
 377  | DEAD COUNT expr { OSPF_PATT->deadc = $3 ; if ($3<=1) cf_error("Dead count must be greater than one"); }
 378  | TYPE BROADCAST { OSPF_PATT->type = OSPF_IT_BCAST ; }
 379  | TYPE BCAST { OSPF_PATT->type = OSPF_IT_BCAST ; }
 380  | TYPE NONBROADCAST { OSPF_PATT->type = OSPF_IT_NBMA ; }
 381  | TYPE NBMA { OSPF_PATT->type = OSPF_IT_NBMA ; }
 382  | TYPE POINTOPOINT { OSPF_PATT->type = OSPF_IT_PTP ; }
 383  | TYPE PTP { OSPF_PATT->type = OSPF_IT_PTP ; }
 384  | TYPE POINTOMULTIPOINT { OSPF_PATT->type = OSPF_IT_PTMP ; }
 385  | TYPE PTMP { OSPF_PATT->type = OSPF_IT_PTMP ; }
 386  | REAL BROADCAST bool { OSPF_PATT->real_bcast = $3; if (!ospf_cfg_is_v2()) cf_error("Real broadcast option requires OSPFv2"); }
 387  | PTP NETMASK bool { OSPF_PATT->ptp_netmask = $3; if (!ospf_cfg_is_v2()) cf_error("PtP netmask option requires OSPFv2"); }
 388  | TRANSMIT DELAY expr { OSPF_PATT->inftransdelay = $3 ; if (($3<=0) || ($3>65535)) cf_error("Transmit delay must be in range 1-65535"); }
 389  | PRIORITY expr { OSPF_PATT->priority = $2 ; if ($2>255) cf_error("Priority must be in range 0-255"); }
 390  | STRICT NONBROADCAST bool { OSPF_PATT->strictnbma = $3 ; }
 391  | STUB bool { OSPF_PATT->stub = $2 ; }
 392  | CHECK LINK bool { OSPF_PATT->check_link = $3; }
 393  | ECMP WEIGHT expr { OSPF_PATT->ecmp_weight = $3 - 1; if (($3<1) || ($3>256)) cf_error("ECMP weight must be in range 1-256"); }
 394  | LINK LSA SUPPRESSION bool { OSPF_PATT->link_lsa_suppression = $4; if (!ospf_cfg_is_v3()) cf_error("Link LSA suppression option requires OSPFv3"); }
 395  | NEIGHBORS '{' nbma_list '}'
 396  | AUTHENTICATION NONE { OSPF_PATT->autype = OSPF_AUTH_NONE; }
 397  | AUTHENTICATION SIMPLE { OSPF_PATT->autype = OSPF_AUTH_SIMPLE; ospf_check_auth(); }
 398  | AUTHENTICATION CRYPTOGRAPHIC { OSPF_PATT->autype = OSPF_AUTH_CRYPT; ospf_check_auth(); }
 399  | RX BUFFER NORMAL { OSPF_PATT->rx_buffer = 0; }
 400  | RX BUFFER LARGE { OSPF_PATT->rx_buffer = OSPF_MAX_PKT_SIZE; }
 401  | RX BUFFER expr { OSPF_PATT->rx_buffer = $3; if (($3 < OSPF_MIN_PKT_SIZE) || ($3 > OSPF_MAX_PKT_SIZE)) cf_error("Buffer size must be in range 256-65535"); }
 402  | TX tos { OSPF_PATT->tx_tos = $2; }
 403  | TX PRIORITY expr { OSPF_PATT->tx_priority = $3; }
 404  | TX LENGTH expr { OSPF_PATT->tx_length = $3; if (($3 < OSPF_MIN_PKT_SIZE) || ($3 > OSPF_MAX_PKT_SIZE)) cf_error("TX length must be in range 256-65535"); }
 405  | TTL SECURITY bool { OSPF_PATT->ttl_security = $3; }
 406  | TTL SECURITY TX ONLY { OSPF_PATT->ttl_security = 2; }
 407  | BFD bool { OSPF_PATT->bfd = $2; cf_check_bfd($2); }
 408  | password_list { ospf_check_auth(); }
 409  ;
 410
 411 pref_list:
 412  /* empty */
 413  | pref_list pref_item
 414  ;
 415
 416 pref_item: pref_base pref_opt ';' ;
 417
 418 pref_base: net_ip
 419  {
 420    this_pref = cfg_allocz(sizeof(struct area_net_config));
 421    add_tail(this_nets, NODE this_pref);
 422    this_pref->prefix = $1;
 423  }
 424 ;
 425
 426 pref_opt:
 427  /* empty */
 428  | HIDDEN { this_pref->hidden = 1; }
 429  | TAG expr { this_pref->tag = $2; }
 430  ;
 431
 432 nbma_list:
 433  /* empty */
 434  | nbma_list nbma_item
 435  ;
 436
 437 nbma_eligible:
 438  /* empty */ { $$ = 0; }
 439  | ELIGIBLE { $$ = 1; }
 440  ;
 441
 442 nbma_item: ipa nbma_eligible ';'
 443  {
 444    this_nbma = cfg_allocz(sizeof(struct nbma_node));
 445    add_tail(&OSPF_PATT->nbma_list, NODE this_nbma);
 446    this_nbma->ip=$1;
 447    this_nbma->eligible=$2;
 448  }
 449 ;
 450
 451 ospf_iface_start:
 452  {
 453   this_ipatt = cfg_allocz(sizeof(struct ospf_iface_patt));
 454   add_tail(&this_area->patt_list, NODE this_ipatt);
 455   init_list(&this_ipatt->ipn_list);
 456   OSPF_PATT->cost = COST_D;
 457   OSPF_PATT->helloint = HELLOINT_D;
 458   OSPF_PATT->pollint = POLLINT_D;
 459   OSPF_PATT->rxmtint = RXMTINT_D;
 460   OSPF_PATT->inftransdelay = INFTRANSDELAY_D;
 461   OSPF_PATT->priority = PRIORITY_D;
 462   OSPF_PATT->deadc = DEADC_D;
 463   OSPF_PATT->type = OSPF_IT_UNDEF;
 464   init_list(&OSPF_PATT->nbma_list);
 465   OSPF_PATT->check_link = 1;
 466   OSPF_PATT->ptp_netmask = 2; /* not specified */
 467   OSPF_PATT->tx_tos = IP_PREC_INTERNET_CONTROL;
 468   OSPF_PATT->tx_priority = sk_priority_control;
 469   reset_passwords();
 470  }
 471 ;
 472
 473 ospf_instance_id:
 474    /* empty */
 475  | INSTANCE expr { OSPF_PATT->instance_id = $2; OSPF_PATT->instance_id_set = 1; if ($2 > 255) cf_error("Instance ID must be in range 0-255"); }
 476  ;
 477
 478 ospf_iface_patt_list:
 479    iface_patt_list { if (ospf_cfg_is_v3()) iface_patt_check(); } ospf_instance_id
 480  ;
 481
 482 ospf_iface_opts:
 483    /* empty */
 484  | ospf_iface_opts ospf_iface_item ';'
 485  ;
 486
 487 ospf_iface_opt_list:
 488    /* empty */
 489  | '{' ospf_iface_opts '}'
 490  ;
 491
 492 ospf_iface:
 493   ospf_iface_start ospf_iface_patt_list ospf_iface_opt_list { ospf_iface_finish(); }
 494  ;
 495
 496 CF_ADDTO(dynamic_attr, OSPF_METRIC1 { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_OSPF_METRIC1); })
 497 CF_ADDTO(dynamic_attr, OSPF_METRIC2 { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_OSPF_METRIC2); })
 498 CF_ADDTO(dynamic_attr, OSPF_TAG { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_OSPF_TAG); })
 499 CF_ADDTO(dynamic_attr, OSPF_ROUTER_ID { $$ = f_new_dynamic_attr(EAF_TYPE_ROUTER_ID | EAF_TEMP, T_QUAD, EA_OSPF_ROUTER_ID); })
 500
 501 CF_CLI_HELP(SHOW OSPF, ..., [[Show information about OSPF protocol]]);
 502 CF_CLI(SHOW OSPF, optsym, [<name>], [[Show information about OSPF protocol XXX]])
 503 { ospf_sh(proto_get_named($3, &proto_ospf)); };
 504
 505 CF_CLI(SHOW OSPF NEIGHBORS, optsym opttext, [<name>] [\"<interface>\"], [[Show information about OSPF neighbors]])
 506 { ospf_sh_neigh(proto_get_named($4, &proto_ospf), $5); };
 507
 508 CF_CLI(SHOW OSPF INTERFACE, optsym opttext, [<name>] [\"<interface>\"], [[Show information about interface]])
 509 { ospf_sh_iface(proto_get_named($4, &proto_ospf), $5); };
 510
 511 CF_CLI_HELP(SHOW OSPF TOPOLOGY, [all] [<name>], [[Show information about OSPF network topology]])
 512
 513 CF_CLI(SHOW OSPF TOPOLOGY, optsym opttext, [<name>], [[Show information about reachable OSPF network topology]])
 514 { ospf_sh_state(proto_get_named($4, &proto_ospf), 0, 1); };
 515
 516 CF_CLI(SHOW OSPF TOPOLOGY ALL, optsym opttext, [<name>], [[Show information about all OSPF network topology]])
 517 { ospf_sh_state(proto_get_named($5, &proto_ospf), 0, 0); };
 518
 519 CF_CLI_HELP(SHOW OSPF STATE, [all] [<name>], [[Show information about OSPF network state]])
 520
 521 CF_CLI(SHOW OSPF STATE, optsym opttext, [<name>], [[Show information about reachable OSPF network state]])
 522 { ospf_sh_state(proto_get_named($4, &proto_ospf), 1, 1); };
 523
 524 CF_CLI(SHOW OSPF STATE ALL, optsym opttext, [<name>], [[Show information about all OSPF network state]])
 525 { ospf_sh_state(proto_get_named($5, &proto_ospf), 1, 0); };
 526
 527 CF_CLI_HELP(SHOW OSPF LSADB, ..., [[Show content of OSPF LSA database]]);
 528 CF_CLI(SHOW OSPF LSADB, lsadb_args, [global | area <id> | link] [type <num>] [lsid <id>] [self | router <id>] [<proto>], [[Show content of OSPF LSA database]])
 529 { ospf_sh_lsadb($4); };
 530
 531 lsadb_args:
 532    /* empty */ {
 533      $$ = cfg_allocz(sizeof(struct lsadb_show_data));
 534    }
 535  | lsadb_args GLOBAL { $$ = $1; $$->scope = LSA_SCOPE_AS; }
 536  | lsadb_args AREA idval { $$ = $1; $$->scope = LSA_SCOPE_AREA; $$->area = $3; }
 537  | lsadb_args LINK { $$ = $1; $$->scope = 1; /* hack, 0 is no filter */ }
 538  | lsadb_args TYPE NUM { $$ = $1; $$->type = $3; }
 539  | lsadb_args LSID idval { $$ = $1; $$->lsid = $3; }
 540  | lsadb_args SELF { $$ = $1; $$->router = SH_ROUTER_SELF; }
 541  | lsadb_args ROUTER idval { $$ = $1; $$->router = $3; }
 542  | lsadb_args SYM { $$ = $1; $$->name = $2; }
 543  ;
 544
 545 CF_CODE
 546
 547 CF_END