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 (ospf_cfg_is_v2() && (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       if (ospf_cfg_is_v3() && ip->autype && (pass->alg < ALG_HMAC))
  59         cf_error("Keyed hash algorithms are not allowed, use HMAC algorithms");
  60     }
  61   }
  62 }
  63
  64 static void
  65 ospf_area_finish(void)
  66 {
  67   if ((this_area->areaid == 0) && (this_area->type != OPT_E))
  68     cf_error("Backbone area cannot be stub/NSSA");
  69
  70   if (this_area->summary && (this_area->type == OPT_E))
  71     cf_error("Only stub/NSSA areas can use summary propagation");
  72
  73   if (this_area->default_nssa && ((this_area->type != OPT_N) || ! this_area->summary))
  74     cf_error("Only NSSA areas with summary propagation can use NSSA default route");
  75
  76   if ((this_area->default_cost & LSA_EXT3_EBIT) && ! this_area->default_nssa)
  77     cf_error("Only NSSA default route can use type 2 metric");
  78 }
  79
  80 static void
  81 ospf_proto_finish(void)
  82 {
  83   struct ospf_config *cf = OSPF_CFG;
  84   struct ospf_area_config *ac;
  85   struct ospf_iface_patt *ic;
  86
  87   /* Define default channel */
  88   if (EMPTY_LIST(this_proto->channels))
  89   {
  90     uint net_type = this_proto->net_type = ospf_cfg_is_v2() ? NET_IP4 : NET_IP6;
  91     channel_config_new(NULL, net_label[net_type], net_type, this_proto);
  92   }
  93
  94   /* Propagate global instance ID to interfaces */
  95   if (cf->instance_id_set)
  96   {
  97     WALK_LIST(ac, cf->area_list)
  98       WALK_LIST(ic, ac->patt_list)
  99         if (!ic->instance_id_set)
 100         { ic->instance_id = cf->instance_id; ic->instance_id_set = 1; }
 101
 102     WALK_LIST(ic, cf->vlink_list)
 103       if (!ic->instance_id_set)
 104       { ic->instance_id = cf->instance_id; ic->instance_id_set = 1; }
 105   }
 106
 107   if (ospf_cfg_is_v3())
 108   {
 109     uint ipv4 = (this_proto->net_type == NET_IP4);
 110     uint base = (ipv4 ? 64 : 0) + (cf->af_mc ? 32 : 0);
 111
 112     /* RFC 5838 - OSPFv3-AF */
 113     if (cf->af_ext)
 114     {
 115       /* RFC 5838 2.1 - instance IDs based on AFs */
 116       WALK_LIST(ac, cf->area_list)
 117         WALK_LIST(ic, ac->patt_list)
 118         {
 119           if (!ic->instance_id_set)
 120             ic->instance_id = base;
 121           else if (ic->instance_id >= 128)
 122             log(L_WARN "Instance ID %d from unassigned/private range", ic->instance_id);
 123           else if ((ic->instance_id < base) || (ic->instance_id >= (base + 32)))
 124             cf_error("Instance ID %d invalid for given channel type", ic->instance_id);
 125         }
 126
 127       /* RFC 5838 2.8 - vlinks limited to IPv6 unicast */
 128       if ((ipv4 || cf->af_mc) && !EMPTY_LIST(cf->vlink_list))
 129         cf_error("Vlinks not supported in AFs other than IPv6 unicast");
 130     }
 131     else
 132     {
 133       if (ipv4 || cf->af_mc)
 134         cf_error("Different channel type");
 135     }
 136   }
 137
 138   if (EMPTY_LIST(cf->area_list))
 139     cf_error("No configured areas in OSPF");
 140
 141   int areano = 0;
 142   int backbone = 0;
 143   int nssa = 0;
 144   WALK_LIST(ac, cf->area_list)
 145   {
 146     areano++;
 147     if (ac->areaid == 0)
 148       backbone = 1;
 149     if (ac->type == OPT_N)
 150       nssa = 1;
 151   }
 152
 153   cf->abr = areano > 1;
 154
 155   /* Route export or NSSA translation (RFC 3101 3.1) */
 156   cf->asbr = (proto_cf_main_channel(this_proto)->out_filter != FILTER_REJECT) || (nssa && cf->abr);
 157
 158   if (cf->abr && !backbone)
 159   {
 160     struct ospf_area_config *ac = cfg_allocz(sizeof(struct ospf_area_config));
 161     ac->type = OPT_E; /* Backbone is non-stub */
 162     add_head(&cf->area_list, NODE ac);
 163     init_list(&ac->patt_list);
 164     init_list(&ac->net_list);
 165     init_list(&ac->enet_list);
 166     init_list(&ac->stubnet_list);
 167   }
 168
 169   if (!cf->abr && !EMPTY_LIST(cf->vlink_list))
 170     cf_error("Vlinks cannot be used on single area router");
 171
 172   if (cf->asbr && (areano == 1) && (this_area->type == 0))
 173     cf_error("ASBR must be in non-stub area");
 174 }
 175
 176 static inline void
 177 ospf_check_defcost(int cost)
 178 {
 179   if ((cost <= 0) || (cost >= LSINFINITY))
 180    cf_error("Default cost must be in range 1-%u", LSINFINITY-1);
 181 }
 182
 183 static inline void
 184 ospf_check_auth(void)
 185 {
 186   if (ospf_cfg_is_v3())
 187     cf_error("Plaintext authentication not supported in OSPFv3");
 188 }
 189
 190
 191 CF_DECLS
 192
 193 CF_KEYWORDS(OSPF, V2, V3, OSPF_METRIC1, OSPF_METRIC2, OSPF_TAG, OSPF_ROUTER_ID)
 194 CF_KEYWORDS(AREA, NEIGHBORS, RFC1583COMPAT, STUB, TICK, COST, COST2, RETRANSMIT)
 195 CF_KEYWORDS(HELLO, TRANSMIT, PRIORITY, DEAD, TYPE, BROADCAST, BCAST, DEFAULT)
 196 CF_KEYWORDS(NONBROADCAST, NBMA, POINTOPOINT, PTP, POINTOMULTIPOINT, PTMP)
 197 CF_KEYWORDS(NONE, SIMPLE, AUTHENTICATION, STRICT, CRYPTOGRAPHIC, TTL, SECURITY)
 198 CF_KEYWORDS(ELIGIBLE, POLL, NETWORKS, HIDDEN, VIRTUAL, CHECK, LINK, ONLY, BFD)
 199 CF_KEYWORDS(RX, BUFFER, LARGE, NORMAL, STUBNET, HIDDEN, SUMMARY, TAG, EXTERNAL)
 200 CF_KEYWORDS(WAIT, DELAY, LSADB, ECMP, LIMIT, WEIGHT, NSSA, TRANSLATOR, STABILITY)
 201 CF_KEYWORDS(GLOBAL, LSID, ROUTER, SELF, INSTANCE, REAL, NETMASK, TX, PRIORITY, LENGTH)
 202 CF_KEYWORDS(MERGE, LSA, SUPPRESSION, MULTICAST, RFC5838, VPN, PE)
 203 CF_KEYWORDS(GRACEFUL, RESTART, AWARE, TIME)
 204
 205 %type <ld> lsadb_args
 206 %type <i> ospf_variant ospf_af_mc nbma_eligible
 207 %type <cc> ospf_channel_start ospf_channel
 208
 209 CF_GRAMMAR
 210
 211 proto: ospf_proto '}' { ospf_proto_finish(); }  ;
 212
 213 ospf_variant:
 214    OSPF    { $$ = 1; }
 215  | OSPF V2 { $$ = 1; }
 216  | OSPF V3 { $$ = 0; }
 217  ;
 218
 219 ospf_proto_start: proto_start ospf_variant
 220 {
 221   this_proto = proto_config_new(&proto_ospf, $1);
 222   this_proto->net_type = $2 ? NET_IP4 : 0;
 223
 224   init_list(&OSPF_CFG->area_list);
 225   init_list(&OSPF_CFG->vlink_list);
 226   OSPF_CFG->ecmp = rt_default_ecmp;
 227   OSPF_CFG->tick = OSPF_DEFAULT_TICK;
 228   OSPF_CFG->ospf2 = $2;
 229   OSPF_CFG->af_ext = !$2;
 230   OSPF_CFG->gr_mode = OSPF_GR_AWARE;
 231   OSPF_CFG->gr_time = OSPF_DEFAULT_GR_TIME;
 232 };
 233
 234 ospf_proto:
 235    ospf_proto_start proto_name '{'
 236  | ospf_proto ospf_proto_item ';'
 237  ;
 238
 239 ospf_af_mc:
 240              { $$ = 0; }
 241  | MULTICAST { $$ = 1; }
 242  ;
 243
 244 /* We redefine proto_channel to add multicast flag */
 245 ospf_channel_start: net_type ospf_af_mc
 246 {
 247   /* TODO: change name for multicast channels */
 248   $$ = this_channel = channel_config_get(NULL, net_label[$1], $1, this_proto);
 249
 250   /* Save the multicast flag */
 251   if (this_channel == proto_cf_main_channel(this_proto))
 252     OSPF_CFG->af_mc = $2;
 253 };
 254
 255 ospf_channel: ospf_channel_start channel_opt_list channel_end;
 256
 257 ospf_proto_item:
 258    proto_item
 259  | ospf_channel { this_proto->net_type = $1->net_type; }
 260  | RFC1583COMPAT bool { OSPF_CFG->rfc1583 = $2; }
 261  | RFC5838 bool { OSPF_CFG->af_ext = $2; if (!ospf_cfg_is_v3()) cf_error("RFC5838 option requires OSPFv3"); }
 262  | VPN PE bool { OSPF_CFG->vpn_pe = $3; }
 263  | STUB ROUTER bool { OSPF_CFG->stub_router = $3; }
 264  | GRACEFUL RESTART bool { OSPF_CFG->gr_mode = $3; }
 265  | GRACEFUL RESTART AWARE { OSPF_CFG->gr_mode = OSPF_GR_AWARE; }
 266  | GRACEFUL RESTART TIME expr { OSPF_CFG->gr_time = $4; if (($4 < 1) || ($4 > 1800)) cf_error("Graceful restart time must be in range 1-1800"); }
 267  | ECMP bool { OSPF_CFG->ecmp = $2 ? OSPF_DEFAULT_ECMP_LIMIT : 0; }
 268  | ECMP bool LIMIT expr { OSPF_CFG->ecmp = $2 ? $4 : 0; }
 269  | MERGE EXTERNAL bool { OSPF_CFG->merge_external = $3; }
 270  | TICK expr { OSPF_CFG->tick = $2; if($2 <= 0) cf_error("Tick must be greater than zero"); }
 271  | 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"); }
 272  | ospf_area
 273  ;
 274
 275 ospf_area_start: AREA idval {
 276   this_area = cfg_allocz(sizeof(struct ospf_area_config));
 277   add_tail(&OSPF_CFG->area_list, NODE this_area);
 278   this_area->areaid = $2;
 279   this_area->default_cost = OSPF_DEFAULT_STUB_COST;
 280   this_area->type = OPT_E;
 281   this_area->transint = OSPF_DEFAULT_TRANSINT;
 282
 283   init_list(&this_area->patt_list);
 284   init_list(&this_area->net_list);
 285   init_list(&this_area->enet_list);
 286   init_list(&this_area->stubnet_list);
 287  }
 288  ;
 289
 290 ospf_area: ospf_area_start '{' ospf_area_opts '}' { ospf_area_finish(); }
 291  ;
 292
 293 ospf_area_opts:
 294    /* empty */
 295  | ospf_area_opts ospf_area_item ';'
 296  ;
 297
 298 ospf_area_item:
 299    STUB bool { this_area->type = $2 ? 0 : OPT_E; /* We should remove the option */ }
 300  | NSSA { this_area->type = OPT_N; }
 301  | SUMMARY bool { this_area->summary = $2; }
 302  | DEFAULT NSSA bool { this_area->default_nssa = $3; }
 303  | DEFAULT COST expr { this_area->default_cost = $3; ospf_check_defcost($3); }
 304  | DEFAULT COST2 expr { this_area->default_cost = $3 | LSA_EXT3_EBIT; ospf_check_defcost($3); }
 305  | STUB COST expr { this_area->default_cost = $3; ospf_check_defcost($3); }
 306  | TRANSLATOR bool { this_area->translator = $2; }
 307  | TRANSLATOR STABILITY expr { this_area->transint = $3; }
 308  | NETWORKS { this_nets = &this_area->net_list; } '{' pref_list '}'
 309  | EXTERNAL { this_nets = &this_area->enet_list; } '{' pref_list '}'
 310  | STUBNET ospf_stubnet
 311  | INTERFACE ospf_iface
 312  | ospf_vlink
 313  ;
 314
 315 ospf_stubnet:
 316    ospf_stubnet_start '{' ospf_stubnet_opts '}'
 317  | ospf_stubnet_start
 318  ;
 319
 320 ospf_stubnet_start:
 321    net_ip {
 322      this_stubnet = cfg_allocz(sizeof(struct ospf_stubnet_config));
 323      add_tail(&this_area->stubnet_list, NODE this_stubnet);
 324      this_stubnet->prefix = $1;
 325      this_stubnet->cost = COST_D;
 326    }
 327  ;
 328
 329 ospf_stubnet_opts:
 330    /* empty */
 331  | ospf_stubnet_opts ospf_stubnet_item ';'
 332  ;
 333
 334 ospf_stubnet_item:
 335    HIDDEN bool { this_stubnet->hidden = $2; }
 336  | SUMMARY bool { this_stubnet->summary = $2; }
 337  | COST expr { this_stubnet->cost = $2; }
 338  ;
 339
 340 ospf_vlink:
 341    ospf_vlink_start ospf_instance_id '{' ospf_vlink_opts '}' { ospf_iface_finish(); }
 342  | ospf_vlink_start ospf_instance_id { ospf_iface_finish(); }
 343  ;
 344
 345 ospf_vlink_opts:
 346    /* empty */
 347  | ospf_vlink_opts ospf_vlink_item ';'
 348  ;
 349
 350 ospf_vlink_item:
 351  | HELLO expr { OSPF_PATT->helloint = $2 ; if (($2<=0) || ($2>65535)) cf_error("Hello interval must be in range 1-65535"); }
 352  | RETRANSMIT expr { OSPF_PATT->rxmtint = $2 ; if ($2<=1) cf_error("Retransmit int must be greater than one"); }
 353  | TRANSMIT DELAY expr { OSPF_PATT->inftransdelay = $3 ; if (($3<=0) || ($3>65535)) cf_error("Transmit delay must be in range 1-65535"); }
 354  | WAIT expr { OSPF_PATT->waitint = $2 ; if ($2<=1) cf_error("Wait interval must be greater than one"); }
 355  | DEAD expr { OSPF_PATT->deadint = $2 ; if ($2<=1) cf_error("Dead interval must be greater than one"); }
 356  | DEAD COUNT expr { OSPF_PATT->deadc = $3 ; if ($3<=1) cf_error("Dead count must be greater than one"); }
 357  | AUTHENTICATION NONE { OSPF_PATT->autype = OSPF_AUTH_NONE;  }
 358  | AUTHENTICATION SIMPLE { OSPF_PATT->autype = OSPF_AUTH_SIMPLE; ospf_check_auth(); }
 359  | AUTHENTICATION CRYPTOGRAPHIC { OSPF_PATT->autype = OSPF_AUTH_CRYPT; }
 360  | password_list
 361  ;
 362
 363 ospf_vlink_start: VIRTUAL LINK idval
 364  {
 365   if (this_area->areaid == 0) cf_error("Virtual link cannot be in backbone");
 366   this_ipatt = cfg_allocz(sizeof(struct ospf_iface_patt));
 367   add_tail(&OSPF_CFG->vlink_list, NODE this_ipatt);
 368   init_list(&this_ipatt->ipn_list);
 369   OSPF_PATT->voa = this_area->areaid;
 370   OSPF_PATT->vid = $3;
 371   OSPF_PATT->helloint = HELLOINT_D;
 372   OSPF_PATT->rxmtint = RXMTINT_D;
 373   OSPF_PATT->inftransdelay = INFTRANSDELAY_D;
 374   OSPF_PATT->deadc = DEADC_D;
 375   OSPF_PATT->type = OSPF_IT_VLINK;
 376   init_list(&OSPF_PATT->nbma_list);
 377   reset_passwords();
 378  }
 379 ;
 380
 381 ospf_iface_item:
 382    COST expr { OSPF_PATT->cost = $2 ; if (($2<=0) || ($2>65535)) cf_error("Cost must be in range 1-65535"); }
 383  | HELLO expr { OSPF_PATT->helloint = $2 ; if (($2<=0) || ($2>65535)) cf_error("Hello interval must be in range 1-65535"); }
 384  | POLL expr { OSPF_PATT->pollint = $2 ; if ($2<=0) cf_error("Poll int must be greater than zero"); }
 385  | RETRANSMIT expr { OSPF_PATT->rxmtint = $2 ; if ($2<=1) cf_error("Retransmit int must be greater than one"); }
 386  | WAIT expr { OSPF_PATT->waitint = $2 ; if ($2<=1) cf_error("Wait interval must be greater than one"); }
 387  | DEAD expr { OSPF_PATT->deadint = $2 ; if ($2<=1) cf_error("Dead interval must be greater than one"); }
 388  | DEAD COUNT expr { OSPF_PATT->deadc = $3 ; if ($3<=1) cf_error("Dead count must be greater than one"); }
 389  | TYPE BROADCAST { OSPF_PATT->type = OSPF_IT_BCAST ; }
 390  | TYPE BCAST { OSPF_PATT->type = OSPF_IT_BCAST ; }
 391  | TYPE NONBROADCAST { OSPF_PATT->type = OSPF_IT_NBMA ; }
 392  | TYPE NBMA { OSPF_PATT->type = OSPF_IT_NBMA ; }
 393  | TYPE POINTOPOINT { OSPF_PATT->type = OSPF_IT_PTP ; }
 394  | TYPE PTP { OSPF_PATT->type = OSPF_IT_PTP ; }
 395  | TYPE POINTOMULTIPOINT { OSPF_PATT->type = OSPF_IT_PTMP ; }
 396  | TYPE PTMP { OSPF_PATT->type = OSPF_IT_PTMP ; }
 397  | REAL BROADCAST bool { OSPF_PATT->real_bcast = $3; if (!ospf_cfg_is_v2()) cf_error("Real broadcast option requires OSPFv2"); }
 398  | PTP NETMASK bool { OSPF_PATT->ptp_netmask = $3; if (!ospf_cfg_is_v2()) cf_error("PtP netmask option requires OSPFv2"); }
 399  | TRANSMIT DELAY expr { OSPF_PATT->inftransdelay = $3 ; if (($3<=0) || ($3>65535)) cf_error("Transmit delay must be in range 1-65535"); }
 400  | PRIORITY expr { OSPF_PATT->priority = $2 ; if ($2>255) cf_error("Priority must be in range 0-255"); }
 401  | STRICT NONBROADCAST bool { OSPF_PATT->strictnbma = $3 ; }
 402  | STUB bool { OSPF_PATT->stub = $2 ; }
 403  | CHECK LINK bool { OSPF_PATT->check_link = $3; }
 404  | ECMP WEIGHT expr { OSPF_PATT->ecmp_weight = $3 - 1; if (($3<1) || ($3>256)) cf_error("ECMP weight must be in range 1-256"); }
 405  | LINK LSA SUPPRESSION bool { OSPF_PATT->link_lsa_suppression = $4; if (!ospf_cfg_is_v3()) cf_error("Link LSA suppression option requires OSPFv3"); }
 406  | NEIGHBORS '{' nbma_list '}'
 407  | AUTHENTICATION NONE { OSPF_PATT->autype = OSPF_AUTH_NONE; }
 408  | AUTHENTICATION SIMPLE { OSPF_PATT->autype = OSPF_AUTH_SIMPLE; ospf_check_auth(); }
 409  | AUTHENTICATION CRYPTOGRAPHIC { OSPF_PATT->autype = OSPF_AUTH_CRYPT; }
 410  | RX BUFFER NORMAL { OSPF_PATT->rx_buffer = 0; }
 411  | RX BUFFER LARGE { OSPF_PATT->rx_buffer = OSPF_MAX_PKT_SIZE; }
 412  | 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"); }
 413  | TX tos { OSPF_PATT->tx_tos = $2; }
 414  | TX PRIORITY expr { OSPF_PATT->tx_priority = $3; }
 415  | 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"); }
 416  | TTL SECURITY bool { OSPF_PATT->ttl_security = $3; }
 417  | TTL SECURITY TX ONLY { OSPF_PATT->ttl_security = 2; }
 418  | BFD bool { OSPF_PATT->bfd = $2; cf_check_bfd($2); }
 419  | password_list
 420  ;
 421
 422 pref_list:
 423  /* empty */
 424  | pref_list pref_item
 425  ;
 426
 427 pref_item: pref_base pref_opt ';' ;
 428
 429 pref_base: net_ip
 430  {
 431    this_pref = cfg_allocz(sizeof(struct area_net_config));
 432    add_tail(this_nets, NODE this_pref);
 433    this_pref->prefix = $1;
 434  }
 435 ;
 436
 437 pref_opt:
 438  /* empty */
 439  | HIDDEN { this_pref->hidden = 1; }
 440  | TAG expr { this_pref->tag = $2; }
 441  ;
 442
 443 nbma_list:
 444  /* empty */
 445  | nbma_list nbma_item
 446  ;
 447
 448 nbma_eligible:
 449  /* empty */ { $$ = 0; }
 450  | ELIGIBLE { $$ = 1; }
 451  ;
 452
 453 nbma_item: ipa nbma_eligible ';'
 454  {
 455    this_nbma = cfg_allocz(sizeof(struct nbma_node));
 456    add_tail(&OSPF_PATT->nbma_list, NODE this_nbma);
 457    this_nbma->ip=$1;
 458    this_nbma->eligible=$2;
 459  }
 460 ;
 461
 462 ospf_iface_start:
 463  {
 464   this_ipatt = cfg_allocz(sizeof(struct ospf_iface_patt));
 465   add_tail(&this_area->patt_list, NODE this_ipatt);
 466   init_list(&this_ipatt->ipn_list);
 467   OSPF_PATT->cost = COST_D;
 468   OSPF_PATT->helloint = HELLOINT_D;
 469   OSPF_PATT->pollint = POLLINT_D;
 470   OSPF_PATT->rxmtint = RXMTINT_D;
 471   OSPF_PATT->inftransdelay = INFTRANSDELAY_D;
 472   OSPF_PATT->priority = PRIORITY_D;
 473   OSPF_PATT->deadc = DEADC_D;
 474   OSPF_PATT->type = OSPF_IT_UNDEF;
 475   init_list(&OSPF_PATT->nbma_list);
 476   OSPF_PATT->check_link = 1;
 477   OSPF_PATT->ptp_netmask = 2; /* not specified */
 478   OSPF_PATT->tx_tos = IP_PREC_INTERNET_CONTROL;
 479   OSPF_PATT->tx_priority = sk_priority_control;
 480   reset_passwords();
 481  }
 482 ;
 483
 484 ospf_instance_id:
 485    /* empty */
 486  | 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"); }
 487  ;
 488
 489 ospf_iface_patt_list:
 490    iface_patt_list { if (ospf_cfg_is_v3()) iface_patt_check(); } ospf_instance_id
 491  ;
 492
 493 ospf_iface_opts:
 494    /* empty */
 495  | ospf_iface_opts ospf_iface_item ';'
 496  ;
 497
 498 ospf_iface_opt_list:
 499    /* empty */
 500  | '{' ospf_iface_opts '}'
 501  ;
 502
 503 ospf_iface:
 504   ospf_iface_start ospf_iface_patt_list ospf_iface_opt_list { ospf_iface_finish(); }
 505  ;
 506
 507 dynamic_attr: OSPF_METRIC1 { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_OSPF_METRIC1); } ;
 508 dynamic_attr: OSPF_METRIC2 { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_OSPF_METRIC2); } ;
 509 dynamic_attr: OSPF_TAG { $$ = f_new_dynamic_attr(EAF_TYPE_INT, T_INT, EA_OSPF_TAG); } ;
 510 dynamic_attr: OSPF_ROUTER_ID { $$ = f_new_dynamic_attr(EAF_TYPE_ROUTER_ID, T_QUAD, EA_OSPF_ROUTER_ID); } ;
 511
 512 CF_CLI_HELP(SHOW OSPF, ..., [[Show information about OSPF protocol]]);
 513 CF_CLI(SHOW OSPF, optproto, [<name>], [[Show information about OSPF protocol]])
 514 { ospf_sh(proto_get_named($3, &proto_ospf)); };
 515
 516 CF_CLI(SHOW OSPF NEIGHBORS, optproto opttext, [<name>] [\"<interface>\"], [[Show information about OSPF neighbors]])
 517 { ospf_sh_neigh(proto_get_named($4, &proto_ospf), $5); };
 518
 519 CF_CLI(SHOW OSPF INTERFACE, optproto opttext, [<name>] [\"<interface>\"], [[Show information about interface]])
 520 { ospf_sh_iface(proto_get_named($4, &proto_ospf), $5); };
 521
 522 CF_CLI_HELP(SHOW OSPF TOPOLOGY, [all] [<name>], [[Show information about OSPF network topology]])
 523
 524 CF_CLI(SHOW OSPF TOPOLOGY, optproto opttext, [<name>], [[Show information about reachable OSPF network topology]])
 525 { ospf_sh_state(proto_get_named($4, &proto_ospf), 0, 1); };
 526
 527 CF_CLI(SHOW OSPF TOPOLOGY ALL, optproto opttext, [<name>], [[Show information about all OSPF network topology]])
 528 { ospf_sh_state(proto_get_named($5, &proto_ospf), 0, 0); };
 529
 530 CF_CLI_HELP(SHOW OSPF STATE, [all] [<name>], [[Show information about OSPF network state]])
 531
 532 CF_CLI(SHOW OSPF STATE, optproto opttext, [<name>], [[Show information about reachable OSPF network state]])
 533 { ospf_sh_state(proto_get_named($4, &proto_ospf), 1, 1); };
 534
 535 CF_CLI(SHOW OSPF STATE ALL, optproto opttext, [<name>], [[Show information about all OSPF network state]])
 536 { ospf_sh_state(proto_get_named($5, &proto_ospf), 1, 0); };
 537
 538 CF_CLI_HELP(SHOW OSPF LSADB, ..., [[Show content of OSPF LSA database]]);
 539 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]])
 540 { ospf_sh_lsadb($4); };
 541
 542 lsadb_args:
 543    /* empty */ {
 544      $$ = cfg_allocz(sizeof(struct lsadb_show_data));
 545    }
 546  | lsadb_args GLOBAL { $$ = $1; $$->scope = LSA_SCOPE_AS; }
 547  | lsadb_args AREA idval { $$ = $1; $$->scope = LSA_SCOPE_AREA; $$->area = $3; }
 548  | lsadb_args LINK { $$ = $1; $$->scope = 1; /* hack, 0 is no filter */ }
 549  | lsadb_args TYPE NUM { $$ = $1; $$->type = $3; }
 550  | lsadb_args LSID idval { $$ = $1; $$->lsid = $3; }
 551  | lsadb_args SELF { $$ = $1; $$->router = SH_ROUTER_SELF; }
 552  | lsadb_args ROUTER idval { $$ = $1; $$->router = $3; }
 553  | lsadb_args CF_SYM_KNOWN { cf_assert_symbol($2, SYM_PROTO); $$ = $1; $$->proto = (struct ospf_proto *) proto_get_named($2, &proto_ospf); }
 554  ;
 555
 556 CF_CODE
 557
 558 CF_END