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bird 1.6.8

    1: /*
    2:  *	BIRD -- Router Advertisement Configuration
    3:  *
    4:  *
    5:  *	Can be freely distributed and used under the terms of the GNU GPL.
    6:  */
    7: 
    8: CF_HDR
    9: 
   10: #include "proto/bfd/bfd.h"
   11: 
   12: CF_DEFINES
   13: 
   14: #define BFD_CFG ((struct bfd_config *) this_proto)
   15: #define BFD_IFACE ((struct bfd_iface_config *) this_ipatt)
   16: #define BFD_NEIGHBOR this_bfd_neighbor
   17: 
   18: static struct bfd_neighbor *this_bfd_neighbor;
   19: 
   20: extern struct bfd_config *bfd_cf;
   21: 
   22: CF_DECLS
   23: 
   24: CF_KEYWORDS(BFD, MIN, IDLE, RX, TX, INTERVAL, MULTIPLIER, PASSIVE,
   25: 	INTERFACE, MULTIHOP, NEIGHBOR, DEV, LOCAL, AUTHENTICATION,
   26: 	NONE, SIMPLE, METICULOUS, KEYED, MD5, SHA1)
   27: 
   28: %type <iface> bfd_neigh_iface
   29: %type <a> bfd_neigh_local
   30: %type <i> bfd_neigh_multihop bfd_auth_type
   31: 
   32: CF_GRAMMAR
   33: 
   34: CF_ADDTO(proto, bfd_proto)
   35: 
   36: bfd_proto_start: proto_start BFD
   37: {
   38:   this_proto = proto_config_new(&proto_bfd, $1);
   39:   init_list(&BFD_CFG->patt_list);
   40:   init_list(&BFD_CFG->neigh_list);
   41: };
   42: 
   43: bfd_proto_item:
   44:    proto_item
   45:  | INTERFACE bfd_iface
   46:  | MULTIHOP bfd_multihop
   47:  | NEIGHBOR bfd_neighbor
   48:  ;
   49: 
   50: bfd_proto_opts:
   51:    /* empty */
   52:  | bfd_proto_opts bfd_proto_item ';'
   53:  ;
   54: 
   55: bfd_proto:
   56:    bfd_proto_start proto_name '{' bfd_proto_opts '}';
   57: 
   58: 
   59: bfd_iface_start:
   60: {
   61:   this_ipatt = cfg_allocz(sizeof(struct bfd_iface_config));
   62:   add_tail(&BFD_CFG->patt_list, NODE this_ipatt);
   63:   init_list(&this_ipatt->ipn_list);
   64: 
   65:   BFD_IFACE->min_rx_int = BFD_DEFAULT_MIN_RX_INT;
   66:   BFD_IFACE->min_tx_int = BFD_DEFAULT_MIN_TX_INT;
   67:   BFD_IFACE->idle_tx_int = BFD_DEFAULT_IDLE_TX_INT;
   68:   BFD_IFACE->multiplier = BFD_DEFAULT_MULTIPLIER;
   69: 
   70:   reset_passwords();
   71: };
   72: 
   73: bfd_iface_finish:
   74: {
   75:   BFD_IFACE->passwords = get_passwords();
   76: 
   77:   if (!BFD_IFACE->auth_type != !BFD_IFACE->passwords)
   78:     log(L_WARN "Authentication and password options should be used together");
   79: 
   80:   if (BFD_IFACE->passwords)
   81:   {
   82:     struct password_item *pass;
   83:     WALK_LIST(pass, *BFD_IFACE->passwords)
   84:     {
   85:       if (pass->alg)
   86:         cf_error("Password algorithm option not available in BFD protocol");
   87: 
   88:       pass->alg = bfd_auth_type_to_hash_alg[BFD_IFACE->auth_type];
   89:     }
   90:   }
   91: };
   92: 
   93: bfd_iface_item:
   94:    INTERVAL expr_us { BFD_IFACE->min_rx_int = BFD_IFACE->min_tx_int = $2; }
   95:  | MIN RX INTERVAL expr_us { BFD_IFACE->min_rx_int = $4; }
   96:  | MIN TX INTERVAL expr_us { BFD_IFACE->min_tx_int = $4; }
   97:  | IDLE TX INTERVAL expr_us { BFD_IFACE->idle_tx_int = $4; }
   98:  | MULTIPLIER expr { BFD_IFACE->multiplier = $2; }
   99:  | PASSIVE bool { BFD_IFACE->passive = $2; }
  100:  | AUTHENTICATION bfd_auth_type { BFD_IFACE->auth_type = $2; }
  101:  | password_list {}
  102:  ;
  103: 
  104: bfd_auth_type:
  105:    NONE			 { $$ = BFD_AUTH_NONE; }
  106:  | SIMPLE 		 { $$ = BFD_AUTH_SIMPLE; }
  107:  | KEYED MD5		 { $$ = BFD_AUTH_KEYED_MD5; }
  108:  | KEYED SHA1   	 { $$ = BFD_AUTH_KEYED_SHA1; }
  109:  | METICULOUS KEYED MD5	 { $$ = BFD_AUTH_METICULOUS_KEYED_MD5; }
  110:  | METICULOUS KEYED SHA1 { $$ = BFD_AUTH_METICULOUS_KEYED_SHA1; }
  111:  ;
  112: 
  113: bfd_iface_opts:
  114:    /* empty */
  115:  | bfd_iface_opts bfd_iface_item ';'
  116:  ;
  117: 
  118: bfd_iface_opt_list:
  119:    /* empty */
  120:  | '{' bfd_iface_opts '}'
  121:  ;
  122: 
  123: bfd_iface:
  124:   bfd_iface_start iface_patt_list_nopx bfd_iface_opt_list bfd_iface_finish;
  125: 
  126: bfd_multihop:
  127:   bfd_iface_start bfd_iface_opt_list bfd_iface_finish
  128: { BFD_CFG->multihop = BFD_IFACE; };
  129: 
  130: 
  131: bfd_neigh_iface:
  132:    /* empty */ { $$ = NULL; }
  133:  | '%' SYM { $$ = if_get_by_name($2->name); }
  134:  | DEV text { $$ = if_get_by_name($2); }
  135:  ;
  136: 
  137: bfd_neigh_local:
  138:    /* empty */ { $$ = IPA_NONE; }
  139:  | LOCAL ipa { $$ = $2; }
  140:  ;
  141: 
  142: bfd_neigh_multihop:
  143:    /* empty */ { $$ = 0; }
  144:  | MULTIHOP bool { $$ = $2; }
  145:  ;
  146: 
  147: bfd_neighbor: ipa bfd_neigh_iface bfd_neigh_local bfd_neigh_multihop
  148: {
  149:   this_bfd_neighbor = cfg_allocz(sizeof(struct bfd_neighbor));
  150:   add_tail(&BFD_CFG->neigh_list, NODE this_bfd_neighbor);
  151: 
  152:   BFD_NEIGHBOR->addr = $1;
  153:   BFD_NEIGHBOR->local = $3;
  154:   BFD_NEIGHBOR->iface = $2;
  155:   BFD_NEIGHBOR->multihop = $4;
  156: 
  157:   if ($4 && $2)
  158:     cf_error("Neighbor cannot set both interface and multihop");
  159: 
  160:   if ($4 && ipa_zero($3))
  161:     cf_error("Multihop neighbor requires specified local address");
  162: };
  163: 
  164: 
  165: CF_CLI_HELP(SHOW BFD, ..., [[Show information about BFD protocol]]);
  166: CF_CLI(SHOW BFD SESSIONS, optsym, [<name>], [[Show information about BFD sessions]])
  167: { bfd_show_sessions(proto_get_named($4, &proto_bfd)); };
  168: 
  169: CF_CODE
  170: 
  171: CF_END