2 * BIRD -- OSPF Configuration
4 * (c) 1999--2004 Ondrej Filip <feela@network.cz>
6 * Can be freely distributed and used under the terms of the GNU GPL.
11 #include "proto/ospf/ospf.h"
15 #define OSPF_CFG ((struct ospf_config *) this_proto)
16 #define OSPF_PATT ((struct ospf_iface_patt *) this_ipatt)
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;
26 ospf_iface_finish(void)
28 struct ospf_iface_patt *ip = OSPF_PATT;
31 ip->deadint = ip->deadc * ip->helloint;
33 ip->passwords = get_passwords();
35 if ((ip->autype == OSPF_AUTH_CRYPT) && (ip->helloint < 5))
36 log(L_WARN "Hello or poll interval less that 5 makes cryptographic authenication prone to replay attacks");
38 if ((ip->autype == OSPF_AUTH_NONE) && (ip->passwords != NULL))
39 log(L_WARN "Password option without authentication option does not make sense");
45 ospf_iface_finish(void)
47 struct ospf_iface_patt *ip = OSPF_PATT;
50 ip->deadint = ip->deadc * ip->helloint;
52 if ((ip->autype != OSPF_AUTH_NONE) || (get_passwords() != NULL))
53 cf_error("Authentication not supported in OSPFv3");
58 ospf_area_finish(void)
60 if ((this_area->areaid == 0) && (this_area->type != OPT_E))
61 cf_error("Backbone area cannot be stub/NSSA");
63 if (this_area->summary && (this_area->type == OPT_E))
64 cf_error("Only Stub/NSSA areas can use summary propagation");
66 if (this_area->default_nssa && ((this_area->type != OPT_N) || ! this_area->summary))
67 cf_error("Only NSSA areas with summary propagation can use NSSA default route");
69 if ((this_area->default_cost & LSA_EXT_EBIT) && ! this_area->default_nssa)
70 cf_error("Only NSSA default route can use type 2 metric");
74 ospf_proto_finish(void)
76 struct ospf_config *cf = OSPF_CFG;
78 if (EMPTY_LIST(cf->area_list))
79 cf_error( "No configured areas in OSPF");
83 struct ospf_area_config *ac;
84 WALK_LIST(ac, cf->area_list)
92 if (cf->abr && !backbone)
94 struct ospf_area_config *ac = cfg_allocz(sizeof(struct ospf_area_config));
95 add_head(&cf->area_list, NODE ac);
96 init_list(&ac->patt_list);
97 init_list(&ac->net_list);
98 init_list(&ac->enet_list);
99 init_list(&ac->stubnet_list);
102 if (!cf->abr && !EMPTY_LIST(cf->vlink_list))
103 cf_error( "Vlinks cannot be used on single area router");
107 check_defcost(int cost)
109 if ((cost <= 0) || (cost >= LSINFINITY))
110 cf_error("Default cost must be in range 1-%d", LSINFINITY-1);
114 set_instance_id(unsigned id)
117 OSPF_PATT->instance_id = id;
119 cf_error("Instance ID requires OSPFv3");
125 CF_KEYWORDS(OSPF, AREA, OSPF_METRIC1, OSPF_METRIC2, OSPF_TAG, OSPF_ROUTER_ID)
126 CF_KEYWORDS(NEIGHBORS, RFC1583COMPAT, STUB, TICK, COST, COST2, RETRANSMIT)
127 CF_KEYWORDS(HELLO, TRANSMIT, PRIORITY, DEAD, TYPE, BROADCAST, BCAST)
128 CF_KEYWORDS(NONBROADCAST, NBMA, POINTOPOINT, PTP, POINTOMULTIPOINT, PTMP)
129 CF_KEYWORDS(NONE, SIMPLE, AUTHENTICATION, STRICT, CRYPTOGRAPHIC)
130 CF_KEYWORDS(ELIGIBLE, POLL, NETWORKS, HIDDEN, VIRTUAL, CHECK, LINK)
131 CF_KEYWORDS(RX, BUFFER, LARGE, NORMAL, STUBNET, HIDDEN, SUMMARY, TAG, EXTERNAL)
132 CF_KEYWORDS(WAIT, DELAY, LSADB, ECMP, LIMIT, WEIGHT, NSSA, TRANSLATOR, STABILITY)
133 CF_KEYWORDS(GLOBAL, LSID, ROUTER, SELF, INSTANCE, REAL)
136 %type <ld> lsadb_args
140 CF_ADDTO(proto, ospf_proto '}' { ospf_proto_finish(); } )
142 ospf_proto_start: proto_start OSPF {
143 this_proto = proto_config_new(&proto_ospf, sizeof(struct ospf_config), $1);
144 init_list(&OSPF_CFG->area_list);
145 init_list(&OSPF_CFG->vlink_list);
146 OSPF_CFG->rfc1583 = DEFAULT_RFC1583;
147 OSPF_CFG->tick = DEFAULT_OSPFTICK;
152 ospf_proto_start proto_name '{'
153 | ospf_proto ospf_proto_item ';'
158 | RFC1583COMPAT bool { OSPF_CFG->rfc1583 = $2; }
159 | ECMP bool { OSPF_CFG->ecmp = $2 ? DEFAULT_ECMP_LIMIT : 0; }
160 | ECMP bool LIMIT expr { OSPF_CFG->ecmp = $2 ? $4 : 0; if ($4 < 0) cf_error("ECMP limit cannot be negative"); }
161 | TICK expr { OSPF_CFG->tick = $2; if($2<=0) cf_error("Tick must be greater than zero"); }
165 ospf_area_start: AREA idval {
166 this_area = cfg_allocz(sizeof(struct ospf_area_config));
167 add_tail(&OSPF_CFG->area_list, NODE this_area);
168 this_area->areaid = $2;
169 this_area->default_cost = DEFAULT_STUB_COST;
170 this_area->type = OPT_E;
171 this_area->transint = DEFAULT_TRANSINT;
173 init_list(&this_area->patt_list);
174 init_list(&this_area->net_list);
175 init_list(&this_area->enet_list);
176 init_list(&this_area->stubnet_list);
180 ospf_area: ospf_area_start '{' ospf_area_opts '}' { ospf_area_finish(); }
185 | ospf_area_opts ospf_area_item ';'
189 STUB bool { this_area->type = $2 ? 0 : OPT_E; /* We should remove the option */ }
190 | NSSA { this_area->type = OPT_N; }
191 | SUMMARY bool { this_area->summary = $2; }
192 | DEFAULT NSSA bool { this_area->default_nssa = $3; }
193 | DEFAULT COST expr { this_area->default_cost = $3; check_defcost($3); }
194 | DEFAULT COST2 expr { this_area->default_cost = $3 | LSA_EXT_EBIT; check_defcost($3); }
195 | STUB COST expr { this_area->default_cost = $3; check_defcost($3); }
196 | TRANSLATOR bool { this_area->translator = $2; }
197 | TRANSLATOR STABILITY expr { this_area->transint = $3; }
198 | NETWORKS { this_nets = &this_area->net_list; } '{' pref_list '}'
199 | EXTERNAL { this_nets = &this_area->enet_list; } '{' pref_list '}'
200 | STUBNET ospf_stubnet
201 | INTERFACE ospf_iface
206 ospf_stubnet_start '{' ospf_stubnet_opts '}'
212 this_stubnet = cfg_allocz(sizeof(struct ospf_stubnet_config));
213 add_tail(&this_area->stubnet_list, NODE this_stubnet);
214 this_stubnet->px = $1;
215 this_stubnet->cost = COST_D;
221 | ospf_stubnet_opts ospf_stubnet_item ';'
225 HIDDEN bool { this_stubnet->hidden = $2; }
226 | SUMMARY bool { this_stubnet->summary = $2; }
227 | COST expr { this_stubnet->cost = $2; }
231 ospf_vlink_start ospf_instance_id '{' ospf_vlink_opts '}' { ospf_iface_finish(); }
232 | ospf_vlink_start ospf_instance_id { ospf_iface_finish(); }
237 | ospf_vlink_opts ospf_vlink_item ';'
241 | HELLO expr { OSPF_PATT->helloint = $2 ; if (($2<=0) || ($2>65535)) cf_error("Hello interval must be in range 1-65535"); }
242 | RETRANSMIT expr { OSPF_PATT->rxmtint = $2 ; if ($2<=0) cf_error("Retransmit int must be greater than zero"); }
243 | TRANSMIT DELAY expr { OSPF_PATT->inftransdelay = $3 ; if (($3<=0) || ($3>65535)) cf_error("Transmit delay must be in range 1-65535"); }
244 | WAIT expr { OSPF_PATT->waitint = $2 ; }
245 | DEAD expr { OSPF_PATT->deadint = $2 ; if ($2<=1) cf_error("Dead interval must be greater than one"); }
246 | DEAD COUNT expr { OSPF_PATT->deadc = $3 ; if ($3<=1) cf_error("Dead count must be greater than one"); }
247 | AUTHENTICATION NONE { OSPF_PATT->autype = OSPF_AUTH_NONE ; }
248 | AUTHENTICATION SIMPLE { OSPF_PATT->autype = OSPF_AUTH_SIMPLE ; }
249 | AUTHENTICATION CRYPTOGRAPHIC { OSPF_PATT->autype = OSPF_AUTH_CRYPT ; }
253 ospf_vlink_start: VIRTUAL LINK idval
255 if (this_area->areaid == 0) cf_error("Virtual link cannot be in backbone");
256 this_ipatt = cfg_allocz(sizeof(struct ospf_iface_patt));
257 add_tail(&OSPF_CFG->vlink_list, NODE this_ipatt);
258 init_list(&this_ipatt->ipn_list);
259 OSPF_PATT->voa = this_area->areaid;
261 OSPF_PATT->helloint = HELLOINT_D;
262 OSPF_PATT->rxmtint = RXMTINT_D;
263 OSPF_PATT->inftransdelay = INFTRANSDELAY_D;
264 OSPF_PATT->waitint = WAIT_DMH*HELLOINT_D;
265 OSPF_PATT->deadc = DEADC_D;
266 OSPF_PATT->deadint = 0;
267 OSPF_PATT->type = OSPF_IT_VLINK;
268 init_list(&OSPF_PATT->nbma_list);
269 OSPF_PATT->autype = OSPF_AUTH_NONE;
275 COST expr { OSPF_PATT->cost = $2 ; if (($2<=0) || ($2>65535)) cf_error("Cost must be in range 1-65535"); }
276 | HELLO expr { OSPF_PATT->helloint = $2 ; if (($2<=0) || ($2>65535)) cf_error("Hello interval must be in range 1-65535"); }
277 | POLL expr { OSPF_PATT->pollint = $2 ; if ($2<=0) cf_error("Poll int must be greater than zero"); }
278 | RETRANSMIT expr { OSPF_PATT->rxmtint = $2 ; if ($2<=0) cf_error("Retransmit int must be greater than zero"); }
279 | WAIT expr { OSPF_PATT->waitint = $2 ; }
280 | DEAD expr { OSPF_PATT->deadint = $2 ; if ($2<=1) cf_error("Dead interval must be greater than one"); }
281 | DEAD COUNT expr { OSPF_PATT->deadc = $3 ; if ($3<=1) cf_error("Dead count must be greater than one"); }
282 | TYPE BROADCAST { OSPF_PATT->type = OSPF_IT_BCAST ; }
283 | TYPE BCAST { OSPF_PATT->type = OSPF_IT_BCAST ; }
284 | TYPE NONBROADCAST { OSPF_PATT->type = OSPF_IT_NBMA ; }
285 | TYPE NBMA { OSPF_PATT->type = OSPF_IT_NBMA ; }
286 | TYPE POINTOPOINT { OSPF_PATT->type = OSPF_IT_PTP ; }
287 | TYPE PTP { OSPF_PATT->type = OSPF_IT_PTP ; }
288 | TYPE POINTOMULTIPOINT { OSPF_PATT->type = OSPF_IT_PTMP ; }
289 | TYPE PTMP { OSPF_PATT->type = OSPF_IT_PTMP ; }
290 | REAL BROADCAST bool { OSPF_PATT->real_bcast = $3; if (OSPF_VERSION != 2) cf_error("Real broadcast option requires OSPFv2"); }
291 | TRANSMIT DELAY expr { OSPF_PATT->inftransdelay = $3 ; if (($3<=0) || ($3>65535)) cf_error("Transmit delay must be in range 1-65535"); }
292 | PRIORITY expr { OSPF_PATT->priority = $2 ; if (($2<0) || ($2>255)) cf_error("Priority must be in range 0-255"); }
293 | STRICT NONBROADCAST bool { OSPF_PATT->strictnbma = $3 ; }
294 | STUB bool { OSPF_PATT->stub = $2 ; }
295 | CHECK LINK bool { OSPF_PATT->check_link = $3; }
296 | ECMP WEIGHT expr { OSPF_PATT->ecmp_weight = $3 - 1; if (($3<1) || ($3>256)) cf_error("ECMP weight must be in range 1-256"); }
297 | NEIGHBORS '{' ipa_list '}'
298 | AUTHENTICATION NONE { OSPF_PATT->autype = OSPF_AUTH_NONE ; }
299 | AUTHENTICATION SIMPLE { OSPF_PATT->autype = OSPF_AUTH_SIMPLE ; }
300 | AUTHENTICATION CRYPTOGRAPHIC { OSPF_PATT->autype = OSPF_AUTH_CRYPT ; }
301 | RX BUFFER LARGE { OSPF_PATT->rxbuf = OSPF_RXBUF_LARGE ; }
302 | RX BUFFER NORMAL { OSPF_PATT->rxbuf = OSPF_RXBUF_NORMAL ; }
303 | RX BUFFER expr { OSPF_PATT->rxbuf = $3 ; if (($3 < OSPF_RXBUF_MINSIZE) || ($3 > OSPF_MAX_PKT_SIZE)) cf_error("Buffer size must be in range 256-65535"); }
309 | pref_list pref_item
312 pref_item: pref_base pref_opt ';' ;
316 this_pref = cfg_allocz(sizeof(struct area_net_config));
317 add_tail(this_nets, NODE this_pref);
318 this_pref->px.addr = $1.addr;
319 this_pref->px.len = $1.len;
325 | HIDDEN { this_pref->hidden = 1; }
326 | TAG expr { this_pref->tag = $2; }
340 this_nbma = cfg_allocz(sizeof(struct nbma_node));
341 add_tail(&OSPF_PATT->nbma_list, NODE this_nbma);
343 this_nbma->eligible=0;
347 ipa_ne: IPA ELIGIBLE ';'
349 this_nbma = cfg_allocz(sizeof(struct nbma_node));
350 add_tail(&OSPF_PATT->nbma_list, NODE this_nbma);
352 this_nbma->eligible=1;
359 this_ipatt = cfg_allocz(sizeof(struct ospf_iface_patt));
360 add_tail(&this_area->patt_list, NODE this_ipatt);
361 init_list(&this_ipatt->ipn_list);
362 OSPF_PATT->cost = COST_D;
363 OSPF_PATT->helloint = HELLOINT_D;
364 OSPF_PATT->pollint = POLLINT_D;
365 OSPF_PATT->rxmtint = RXMTINT_D;
366 OSPF_PATT->inftransdelay = INFTRANSDELAY_D;
367 OSPF_PATT->priority = PRIORITY_D;
368 OSPF_PATT->waitint = WAIT_DMH*HELLOINT_D;
369 OSPF_PATT->deadc = DEADC_D;
370 OSPF_PATT->deadint = 0;
371 OSPF_PATT->type = OSPF_IT_UNDEF;
372 init_list(&OSPF_PATT->nbma_list);
373 OSPF_PATT->autype = OSPF_AUTH_NONE;
380 | INSTANCE expr { set_instance_id($2); }
385 | ospf_iface_opts ospf_iface_item ';'
390 | '{' ospf_iface_opts '}'
394 ospf_iface_start iface_patt_list ospf_instance_id ospf_iface_opt_list { ospf_iface_finish(); }
399 | /* empty */ { $$ = NULL; }
402 CF_ADDTO(dynamic_attr, OSPF_METRIC1 { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_OSPF_METRIC1); })
403 CF_ADDTO(dynamic_attr, OSPF_METRIC2 { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_OSPF_METRIC2); })
404 CF_ADDTO(dynamic_attr, OSPF_TAG { $$ = f_new_dynamic_attr(EAF_TYPE_INT | EAF_TEMP, T_INT, EA_OSPF_TAG); })
405 CF_ADDTO(dynamic_attr, OSPF_ROUTER_ID { $$ = f_new_dynamic_attr(EAF_TYPE_ROUTER_ID | EAF_TEMP, T_QUAD, EA_OSPF_ROUTER_ID); })
407 CF_CLI_HELP(SHOW OSPF, ..., [[Show information about OSPF protocol]]);
408 CF_CLI(SHOW OSPF, optsym, [<name>], [[Show information about OSPF protocol XXX]])
409 { ospf_sh(proto_get_named($3, &proto_ospf)); };
411 CF_CLI(SHOW OSPF NEIGHBORS, optsym opttext, [<name>] [\"<interface>\"], [[Show information about OSPF neighbors]])
412 { ospf_sh_neigh(proto_get_named($4, &proto_ospf), $5); };
414 CF_CLI(SHOW OSPF INTERFACE, optsym opttext, [<name>] [\"<interface>\"], [[Show information about interface]])
415 { ospf_sh_iface(proto_get_named($4, &proto_ospf), $5); };
417 CF_CLI_HELP(SHOW OSPF TOPOLOGY, [all] [<name>], [[Show information about OSPF network topology]])
419 CF_CLI(SHOW OSPF TOPOLOGY, optsym opttext, [<name>], [[Show information about reachable OSPF network topology]])
420 { ospf_sh_state(proto_get_named($4, &proto_ospf), 0, 1); };
422 CF_CLI(SHOW OSPF TOPOLOGY ALL, optsym opttext, [<name>], [[Show information about all OSPF network topology]])
423 { ospf_sh_state(proto_get_named($5, &proto_ospf), 0, 0); };
425 CF_CLI_HELP(SHOW OSPF STATE, [all] [<name>], [[Show information about OSPF network state]])
427 CF_CLI(SHOW OSPF STATE, optsym opttext, [<name>], [[Show information about reachable OSPF network state]])
428 { ospf_sh_state(proto_get_named($4, &proto_ospf), 1, 1); };
430 CF_CLI(SHOW OSPF STATE ALL, optsym opttext, [<name>], [[Show information about all OSPF network state]])
431 { ospf_sh_state(proto_get_named($5, &proto_ospf), 1, 0); };
433 CF_CLI_HELP(SHOW OSPF LSADB, ..., [[Show content of OSPF LSA database]]);
434 CF_CLI(SHOW OSPF LSADB, lsadb_args, [global | area <id> | link] [type <num>] [lsid <id>] [self | router <id>] [<proto>], [[Show content of OSPF LSA database]])
435 { ospf_sh_lsadb($4); };
439 $$ = cfg_allocz(sizeof(struct lsadb_show_data));
441 | lsadb_args GLOBAL { $$ = $1; $$->scope = LSA_SCOPE_AS; }
442 | lsadb_args AREA idval { $$ = $1; $$->scope = LSA_SCOPE_AREA; $$->area = $3 }
443 | lsadb_args LINK { $$ = $1; $$->scope = 1; /* hack, 0 is no filter */ }
444 | lsadb_args TYPE NUM { $$ = $1; $$->type = $3; }
445 | lsadb_args LSID idval { $$ = $1; $$->lsid = $3; }
446 | lsadb_args SELF { $$ = $1; $$->router = SH_ROUTER_SELF; }
447 | lsadb_args ROUTER idval { $$ = $1; $$->router = $3; }
448 | lsadb_args SYM { $$ = $1; $$->name = $2; }