ldp/ldp_struct.h

   1
   2 /*
   3  *  Copyright (C) James R. Leu 2000
   4  *  jleu@mindspring.com
   5  *
   6  *  This software is covered under the LGPL, for more
   7  *  info check out http://www.gnu.org/copyleft/lgpl.html
   8  */
   9
  10 #ifndef _LDP_STRUCT_H_
  11 #define _LDP_STRUCT_H_
  12
  13 #include "mpls_struct.h"
  14 #include "mpls_list.h"
  15 #include "mpls_refcnt.h"
  16
  17 MPLS_LIST_ROOT(ldp_outlabel_list, ldp_outlabel);
  18 MPLS_LIST_ROOT(ldp_resource_list, ldp_resource);
  19 MPLS_LIST_ROOT(ldp_hop_list_list, ldp_hop_list);
  20 MPLS_LIST_ROOT(ldp_inlabel_list, ldp_inlabel);
  21 MPLS_LIST_ROOT(ldp_session_list, ldp_session);
  22 MPLS_LIST_ROOT(ldp_nexthop_list, ldp_nexthop);
  23 MPLS_LIST_ROOT(ldp_entity_list, ldp_entity);
  24 MPLS_LIST_ROOT(ldp_tunnel_list, ldp_tunnel);
  25 MPLS_LIST_ROOT(ldp_addr_list, ldp_addr);
  26 MPLS_LIST_ROOT(ldp_attr_list, ldp_attr);
  27 MPLS_LIST_ROOT(ldp_peer_list, ldp_peer);
  28 MPLS_LIST_ROOT(_ldp_hop_list, ldp_hop);
  29 MPLS_LIST_ROOT(ldp_adj_list, ldp_adj);
  30 MPLS_LIST_ROOT(ldp_fec_list, ldp_fec);
  31 MPLS_LIST_ROOT(ldp_fs_list, ldp_fs);
  32 MPLS_LIST_ROOT(ldp_if_list, ldp_if);
  33
  34 typedef struct ldp_attr_list ldp_attr_list;
  35
  36 typedef enum {
  37   LDP_UNKNOWN = 0,
  38   LDP_DIRECT,
  39   LDP_INDIRECT,
  40 } ldp_entity_type_enum;
  41
  42 typedef enum {
  43   LDP_CONTROL_INDEPENDENT = 1,
  44   LDP_CONTROL_ORDERED
  45 } ldp_control_mode;
  46
  47 typedef enum {
  48   LDP_RETENTION_LIBERAL = 1,
  49   LDP_RETENTION_CONSERVATIVE
  50 } ldp_retention_mode;
  51
  52 typedef enum {
  53   LDP_REPAIR_LOCAL = 1,
  54   LDP_REPAIR_GLOBAL
  55 } ldp_repaire_mode;
  56
  57 typedef enum {
  58   LDP_LOOP_NONE = 0,
  59   LDP_LOOP_HOPCOUNT,
  60   LDP_LOOP_PATHVECTOR,
  61   LDP_LOOP_HOPCOUNT_PATHVECTOR,
  62   LDP_LOOP_OTHER,
  63 } ldp_loop_detection_mode;
  64
  65 typedef enum {
  66   LDP_DISTRIBUTION_UNSOLICITED = 0,
  67   LDP_DISTRIBUTION_ONDEMAND = 1,
  68 } ldp_distribution_mode;
  69
  70 typedef enum {
  71   LDP_INFINIT = 0,
  72 } ldp_count;
  73
  74 typedef enum {
  75   LDP_NONE,
  76   LDP_PASSIVE,
  77   LDP_ACTIVE
  78 } ldp_role_enum;
  79
  80 typedef enum {
  81   LDP_EVENT_HELLO = 0,
  82   LDP_EVENT_CONNECT,
  83   LDP_EVENT_INIT,
  84   LDP_EVENT_KEEP,
  85   LDP_EVENT_ADDR,
  86   LDP_EVENT_LABEL,
  87   LDP_EVENT_NOTIF,
  88   LDP_EVENT_CLOSE,
  89   LDP_EVENT_HTIMER,
  90   LDP_EVENT_KTIMER,
  91   LDP_EVENT_TCP_LISTEN,
  92   LDP_EVENT_TCP_CONNECT,
  93   LDP_EVENT_UDP_DATA,
  94   LDP_EVENT_TCP_DATA,
  95 } ldp_event_enum;
  96
  97 typedef enum {
  98   LDP_STATE_NONE = 0,
  99   LDP_STATE_NON_EXIST,
 100   LDP_STATE_INITIALIZED,
 101   LDP_STATE_OPENSENT,
 102   LDP_STATE_OPENREC,
 103   LDP_STATE_OPERATIONAL
 104 } ldp_state_enum;
 105
 106 typedef enum {
 107   LDP_KEEPALIVE_RECV = 1,
 108   LDP_KEEPALIVE_SEND
 109 } ldp_keepalive_type;
 110
 111 typedef enum {
 112   LDP_LSP_STATE_REQ_RECV,
 113   LDP_LSP_STATE_REQ_SENT,
 114   LDP_LSP_STATE_MAP_RECV,
 115   LDP_LSP_STATE_MAP_SENT,
 116   LDP_LSP_STATE_WITH_SENT,
 117   LDP_LSP_STATE_WITH_RECV,
 118   LDP_LSP_STATE_NO_LABEL_RESOURCE_SENT,
 119   LDP_LSP_STATE_NO_LABEL_RESOURCE_RECV,
 120   LDP_LSP_STATE_ABORT_SENT,
 121   LDP_LSP_STATE_ABORT_RECV,
 122   LDP_LSP_STATE_NOTIF_SENT,
 123   LDP_LSP_STATE_NOTIF_RECV
 124 } ldp_lsp_state;
 125
 126 typedef enum {
 127   LDP_TRACE_FLAG_ADDRESS = 0x00000001,
 128   LDP_TRACE_FLAG_BINDING = 0x00000002,
 129   LDP_TRACE_FLAG_DEBUG = 0x00000004,
 130   LDP_TRACE_FLAG_ERROR = 0x00000008,
 131   LDP_TRACE_FLAG_EVENT = 0x00000010,
 132   LDP_TRACE_FLAG_GENERAL = 0x00000020,
 133   LDP_TRACE_FLAG_INIT = 0x00000040,
 134   LDP_TRACE_FLAG_LABEL = 0x00000080,
 135   LDP_TRACE_FLAG_NORMAL = 0x00000100,
 136   LDP_TRACE_FLAG_NOTIF = 0x00000200,
 137   LDP_TRACE_FLAG_PACKET_DUMP = 0x00000400,
 138   LDP_TRACE_FLAG_PACKET = 0x00000800,
 139   LDP_TRACE_FLAG_PATH = 0x00001000,
 140   LDP_TRACE_FLAG_PERIODIC = 0x00002000,
 141   LDP_TRACE_FLAG_POLICY = 0x00004000,
 142   LDP_TRACE_FLAG_ROUTE = 0x00008000,
 143   LDP_TRACE_FLAG_STATE = 0x00010000,
 144   LDP_TRACE_FLAG_TASK = 0x00020000,
 145   LDP_TRACE_FLAG_TIMER = 0x00040000,
 146   LDP_TRACE_FLAG_ALL = 0xFFFFFFFF
 147 } ldp_trace_flags;
 148
 149 typedef enum {
 150   LDP_NOTIF_NONE = 0,
 151   LDP_NOTIF_SUCCESS,
 152   LDP_NOTIF_BAD_LDP_ID,
 153   LDP_NOTIF_BAD_PROTO,
 154   LDP_NOTIF_BAD_PDU_LEN,
 155   LDP_NOTIF_UNKNOWN_MESG,
 156   LDP_NOTIF_BAD_MESG_LEN,
 157   LDP_NOTIF_UNKNOWN_TVL,
 158   LDP_NOTIF_BAD_TLV_LEN,
 159   LDP_NOTIF_MALFORMED_TLV,
 160   LDP_NOTIF_HOLD_TIMER_EXPIRED,
 161   LDP_NOTIF_SHUTDOWN,
 162   LDP_NOTIF_LOOP_DETECTED,
 163   LDP_NOTIF_UNKNOWN_FEC,
 164   LDP_NOTIF_NO_ROUTE,
 165   LDP_NOTIF_NO_LABEL_RESOURCES_AVAILABLE,
 166   LDP_NOTIF_LABEL_RESOURCES_AVAILABLE,
 167   LDP_NOTIF_SESSION_REJECTED_NO_HELLO,
 168   LDP_NOTIF_SESSION_REJECTED_PARAMETERS_ADVERTISEMENT_MODE,
 169   LDP_NOTIF_SESSION_REJECTED_PARAMETERS_MAX_PDU_LEN,
 170   LDP_NOTIF_SESSION_REJECTED_PARAMETERS_LABEL_RANGE,
 171   LDP_NOTIF_KEEPALIVE_TIMER_EXPIRED,
 172   LDP_NOTIF_LABEL_ABORT,
 173   LDP_NOTIF_MISSING_MSG_PARAMS,
 174   LDP_NOTIF_UNSUPORTED_AF,
 175   LDP_NOTIF_SESSION_REJECTED_BAD_KEEPALIVE_TIME,
 176   LDP_NOTIF_INTERNAL_ERROR
 177 } ldp_notif_status;
 178
 179 #define LDP_STATE_NUM 6
 180 #define LDP_EVENT_NUM 10
 181 #define LDP_FUNC_NUM 10
 182
 183 #include "ldp_defaults.h"
 184 #include "mpls_handle_type.h"
 185 #include "ldp_nortel.h"
 186
 187 typedef struct ldp_mesg {
 188   mplsLdpHeader_t header;
 189   union {
 190     mplsLdpMsg_t generic;
 191     mplsLdpInitMsg_t init;
 192     mplsLdpNotifMsg_t notif;
 193     mplsLdpHelloMsg_t hello;
 194     mplsLdpKeepAlMsg_t keep;
 195     mplsLdpAdrMsg_t addr;
 196     mplsLdpLblMapMsg_t map;
 197     mplsLdpLblReqMsg_t request;
 198     mplsLdpLbl_W_R_Msg_t release;
 199     mplsLdpLblAbortMsg_t abort;
 200   } u;
 201 } ldp_mesg;
 202
 203 typedef struct ldp_buf {
 204   uint8_t *buffer;
 205   uint8_t *current;
 206   int current_size;
 207   int size;
 208   int total;
 209   int want;
 210 } ldp_buf;
 211
 212 typedef struct ldp_global {
 213   struct ldp_outlabel_list outlabel;
 214   struct ldp_resource_list resource;
 215   struct ldp_hop_list_list hop_list;
 216   struct ldp_inlabel_list inlabel;
 217   struct ldp_nexthop_list nexthop;
 218   struct ldp_session_list session;
 219   struct ldp_tunnel_list tunnel;
 220   struct ldp_entity_list entity;
 221   struct ldp_peer_list peer;
 222   struct ldp_attr_list attr;
 223   struct ldp_addr_list addr;
 224   struct ldp_adj_list adj;
 225   struct ldp_if_list iff;
 226   struct ldp_fec_list fec;
 227
 228   mpls_lock_handle global_lock;
 229   mpls_instance_handle user_data;
 230
 231   mpls_tree_handle addr_tree;
 232   mpls_tree_handle fec_tree;
 233
 234   mpls_socket_handle hello_socket;
 235   mpls_socket_handle listen_socket;
 236
 237   mpls_timer_mgr_handle timer_handle;
 238   mpls_socket_mgr_handle socket_handle;
 239   mpls_fib_handle fib_handle;
 240   mpls_ifmgr_handle ifmgr_handle;
 241
 242 #if MPLS_USE_LSR
 243   mpls_cfg_handle lsr_handle;
 244 #else
 245   mpls_mpls_handle mpls_handle;
 246 #endif
 247
 248   /*
 249    * CSN changes with every MIB set, BUT only when a entity goes through
 250    * shutdown/startup cycle will it grab the new CSN and use it in hellos
 251    */
 252   uint32_t configuration_sequence_number;
 253
 254   /*
 255    * Message ID increaments with EVERY message, this means it will roll over
 256    */
 257   uint32_t message_identifier;
 258
 259   struct mpls_inet_addr lsr_identifier;
 260   mpls_bool send_address_messages;
 261   mpls_bool send_lsrid_mapping;
 262   ldp_control_mode lsp_control_mode;
 263   ldp_retention_mode label_retention_mode;
 264   ldp_repaire_mode lsp_repair_mode;
 265   mpls_bool propagate_release;
 266   mpls_bool label_merge;
 267   ldp_loop_detection_mode loop_detection_mode;
 268   mpls_bool ttl_less_domain;
 269   uint16_t local_tcp_port;
 270   uint16_t local_udp_port;
 271   uint16_t backoff_step;
 272   int no_route_to_peer_time;
 273
 274   /*
 275    * some global defaults, entities will inherit these values unless
 276    * instructed otherwise
 277    */
 278   struct mpls_inet_addr transport_address;
 279   uint16_t keepalive_timer;
 280   uint16_t keepalive_interval;
 281   uint16_t hellotime_timer;
 282   uint16_t hellotime_interval;
 283
 284   mpls_admin_state_enum admin_state;
 285 } ldp_global;
 286
 287 typedef struct ldp_entity {
 288   MPLS_REFCNT_FIELD;
 289   MPLS_LIST_ELEM(ldp_entity) _global;
 290   struct ldp_adj_list adj_root;
 291
 292   ldp_entity_type_enum entity_type;
 293   union {
 294     struct ldp_peer *peer;
 295     struct ldp_if *iff;
 296   } p;
 297
 298   ldp_state_enum state;
 299   uint32_t inherit_flag;
 300   uint32_t sub_index;
 301   uint32_t index;
 302   struct mpls_inet_addr transport_address;
 303   uint8_t protocol_version;
 304   uint16_t remote_tcp_port;
 305   uint16_t remote_udp_port;
 306   uint16_t max_pdu;
 307   uint16_t keepalive_timer;
 308   uint16_t keepalive_interval;
 309   uint16_t hellotime_timer;
 310   uint16_t hellotime_interval;
 311   uint16_t session_setup_count;
 312   uint16_t session_backoff_timer;
 313   ldp_distribution_mode label_distribution_mode;
 314   uint8_t path_vector_limit;
 315   uint8_t hop_count_limit;
 316   uint8_t label_request_count;
 317   uint16_t label_request_timer;
 318   ldp_loop_detection_mode loop_detection_mode;
 319   mpls_admin_state_enum admin_state;
 320   mpls_bool remote_in_ttl_less_domain;
 321   mpls_bool request_retry;
 322
 323   /* mesg counters */
 324   uint32_t mesg_tx;
 325   uint32_t mesg_rx;
 326
 327   /* only used for cfg gets */
 328   int adj_index;
 329   int adj_count;
 330 } ldp_entity;
 331
 332 typedef struct ldp_if {
 333   MPLS_REFCNT_FIELD;
 334   MPLS_LIST_ELEM(ldp_if) _global;
 335   struct mpls_link_list session_root;
 336   struct ldp_nexthop_list nh_root;
 337   struct ldp_addr_list addr_root;
 338   struct ldp_entity *entity;
 339   mpls_timer_handle hellotime_send_timer;
 340   int hellotime_send_timer_duration;
 341   int label_space;
 342   uint32_t index;
 343   mpls_if_handle handle;
 344
 345   struct ldp_mesg *tx_message;
 346   struct ldp_buf *tx_buffer;
 347   struct ldp_mesg *hello;
 348
 349   /* YES this is a dest, it is what we use for sendto */
 350   struct mpls_dest dest;
 351
 352   mpls_oper_state_enum oper_state;
 353   mpls_bool is_p2p;
 354
 355   /* only used for cfg gets */
 356   uint32_t entity_index;
 357 } ldp_if;
 358
 359 typedef struct ldp_peer {
 360   MPLS_REFCNT_FIELD;
 361   MPLS_LIST_ELEM(ldp_peer) _global;
 362   struct ldp_entity *entity;
 363   mpls_timer_handle no_route_to_peer_timer;
 364   mpls_timer_handle hellotime_send_timer;
 365   int hellotime_send_timer_duration;
 366   int label_space;
 367   uint32_t index;
 368
 369   struct ldp_mesg *tx_message;
 370   struct ldp_buf *tx_buffer;
 371   struct ldp_mesg *hello;
 372
 373   /* YES this is a dest, it is what we use for sendto */
 374   struct mpls_dest dest;
 375   ldp_role_enum target_role;
 376
 377   char peer_name[MPLS_MAX_IF_NAME];
 378   mpls_oper_state_enum oper_state;
 379
 380   /* only used for cfg gets */
 381   uint32_t entity_index;
 382 } ldp_peer;
 383
 384 typedef struct ldp_session {
 385   MPLS_REFCNT_FIELD;
 386   MPLS_LIST_ELEM(ldp_session) _global;
 387   struct ldp_outlabel_list outlabel_root;
 388   struct mpls_link_list inlabel_root;
 389   struct mpls_link_list addr_root;
 390   struct ldp_attr_list attr_root;
 391   struct ldp_adj_list adj_root;
 392   mpls_timer_handle initial_distribution_timer;
 393   mpls_timer_handle keepalive_recv_timer;
 394   mpls_timer_handle keepalive_send_timer;
 395   uint32_t index;
 396   ldp_state_enum state;
 397   uint32_t oper_up;
 398   ldp_notif_status shutdown_notif;
 399   mpls_bool shutdown_fatal;
 400   mpls_socket_handle socket;
 401   mpls_timer_handle backoff_timer;
 402   int backoff;
 403
 404   /* operational values learned from initialization */
 405   int oper_max_pdu;
 406   int oper_keepalive;
 407   int oper_keepalive_interval;
 408   int oper_path_vector_limit;
 409   ldp_distribution_mode oper_distribution_mode;
 410   ldp_loop_detection_mode oper_loop_detection;
 411
 412   /* these values are learned form the remote peer */
 413   ldp_distribution_mode remote_distribution_mode;
 414   mpls_bool remote_loop_detection;
 415   int remote_path_vector_limit;
 416   int remote_keepalive;
 417   int remote_max_pdu;
 418   mpls_dest remote_dest;
 419   uint8_t session_name[20]; /* xxx.xxx.xxx.xxx:yyy\0 */
 420
 421   mpls_bool no_label_resource_sent;
 422   mpls_bool no_label_resource_recv;
 423   mpls_bool on_global;
 424
 425   /* various message and buffers used for tx and rx */
 426   struct ldp_mesg *keepalive;
 427   struct ldp_mesg *tx_message;
 428   struct ldp_buf *tx_buffer;
 429
 430   /* cached from adj's */
 431   ldp_role_enum oper_role;
 432
 433   /* these are config values come from entity */
 434   ldp_loop_detection_mode cfg_loop_detection_mode;
 435   ldp_distribution_mode cfg_distribution_mode;
 436   mpls_bool cfg_remote_in_ttl_less_domain;
 437   int cfg_label_request_count;
 438   int cfg_label_request_timer;
 439   uint16_t cfg_peer_tcp_port;
 440   int cfg_path_vector_limit;
 441   int cfg_hop_count_limit;
 442   int cfg_label_space;
 443   int cfg_keepalive;
 444   int cfg_max_pdu;
 445
 446   /* mesg counters */
 447   uint32_t mesg_tx;
 448   uint32_t mesg_rx;
 449
 450   /* only used by cfg gets */
 451   uint32_t adj_index;
 452
 453   mpls_dest local_name;
 454   mpls_dest remote_name;
 455 } ldp_session;
 456
 457 typedef struct ldp_adj {
 458   MPLS_REFCNT_FIELD;
 459   MPLS_LIST_ELEM(ldp_adj) _global;
 460   MPLS_LIST_ELEM(ldp_adj) _session;
 461   MPLS_LIST_ELEM(ldp_adj) _entity;
 462   struct ldp_session *session;
 463   struct ldp_entity *entity;
 464   mpls_timer_handle hellotime_recv_timer;
 465   mpls_oper_state_enum state;
 466   ldp_role_enum role;
 467   uint32_t index;
 468
 469   /* these values are learned form the remote peer */
 470   struct mpls_inet_addr remote_transport_address;
 471   struct mpls_inet_addr remote_source_address;
 472   struct mpls_inet_addr remote_lsr_address;
 473   int remote_label_space;
 474   int remote_hellotime;
 475   uint32_t remote_csn;
 476
 477   /* only used by cfg gets */
 478   uint32_t session_index;
 479   uint32_t entity_index;
 480 } ldp_adj;
 481
 482 typedef struct ldp_addr {
 483   MPLS_REFCNT_FIELD;
 484   MPLS_LIST_ELEM(ldp_addr) _global;
 485   MPLS_LIST_ELEM(ldp_addr) _if;
 486   struct ldp_session *session;
 487   struct ldp_nexthop_list nh_root;
 488   struct mpls_inet_addr address;
 489   struct ldp_if *iff;
 490
 491   /*
 492    * if an address has a if_handle it is locally attached
 493    */
 494   mpls_if_handle if_handle;
 495   uint32_t index;
 496
 497   /*
 498    * only used durring gets
 499    */
 500   uint32_t session_index;
 501   uint32_t nexthop_index;
 502   uint32_t if_index;
 503 } ldp_addr;
 504
 505 struct ldp_outlabel;
 506
 507 typedef struct ldp_nexthop {
 508   MPLS_REFCNT_FIELD;
 509   MPLS_LIST_ELEM(ldp_nexthop) _global;
 510   MPLS_LIST_ELEM(ldp_nexthop) _fec;
 511   MPLS_LIST_ELEM(ldp_nexthop) _addr;
 512   MPLS_LIST_ELEM(ldp_nexthop) _if;
 513   MPLS_LIST_ELEM(ldp_nexthop) _outlabel;
 514   struct ldp_outlabel_list outlabel_root;
 515   struct ldp_fec *fec;
 516   struct ldp_addr *addr;
 517   struct ldp_if *iff;
 518   struct ldp_outlabel *outlabel;
 519   struct mpls_nexthop info;
 520
 521   uint32_t index;
 522 } ldp_nexthop;
 523
 524 typedef struct ldp_outlabel {
 525   MPLS_REFCNT_FIELD;
 526   MPLS_LIST_ELEM(ldp_outlabel) _global;
 527   MPLS_LIST_ELEM(ldp_outlabel) _session;
 528   MPLS_LIST_ELEM(ldp_outlabel) _nexthop;
 529   struct ldp_inlabel_list inlabel_root;
 530   struct ldp_tunnel_list tunnel_root;
 531   struct ldp_nexthop_list nh_root;
 532   uint32_t merge_count;
 533   struct ldp_attr *attr;
 534   struct ldp_session *session;
 535   struct ldp_nexthop *nh;
 536   struct mpls_outsegment info;
 537   uint32_t index;
 538   mpls_bool switching;
 539
 540   /* only used by get() */
 541   uint32_t session_index;
 542   uint32_t nh_index;
 543   uint32_t attr_index;
 544 } ldp_outlabel;
 545
 546 typedef struct ldp_inlabel {
 547   MPLS_REFCNT_FIELD;
 548   MPLS_LIST_ELEM(ldp_inlabel) _global;
 549   MPLS_LIST_ELEM(ldp_inlabel) _outlabel;
 550   struct mpls_link_list session_root;
 551   struct mpls_link_list attr_root;
 552   struct ldp_outlabel *outlabel;
 553   uint32_t reuse_count;
 554   uint32_t index;
 555   struct mpls_insegment info;
 556
 557   /* only used by get() */
 558   uint32_t outlabel_index;
 559 } ldp_inlabel;
 560
 561 typedef struct ldp_fec {
 562   MPLS_REFCNT_FIELD;
 563   MPLS_LIST_ELEM(ldp_fec) _global;
 564   MPLS_LIST_ELEM(ldp_fec) _inlabel;
 565   MPLS_LIST_ELEM(ldp_fec) _outlabel;
 566   MPLS_LIST_ELEM(ldp_fec) _tree;
 567   MPLS_LIST_ELEM(ldp_fec) _addr;
 568   MPLS_LIST_ELEM(ldp_fec) _fec;
 569   MPLS_LIST_ELEM(ldp_fec) _if;
 570   struct ldp_fs_list fs_root_us;
 571   struct ldp_fs_list fs_root_ds;
 572   /* ECMP */
 573   struct ldp_nexthop_list nh_root;
 574   struct mpls_fec info;
 575   mpls_bool is_route;
 576   uint32_t index;
 577 } ldp_fec;
 578
 579 typedef struct ldp_fs {
 580   struct ldp_attr_list attr_root;
 581   MPLS_LIST_ELEM(ldp_fs) _fec;
 582   struct ldp_session *session;
 583 } ldp_fs;
 584
 585 typedef struct ldp_attr {
 586   MPLS_REFCNT_FIELD;
 587   uint32_t index;
 588   uint32_t msg_id;
 589   struct ldp_attr_list us_attr_root;
 590   struct ldp_attr *ds_attr;
 591   ldp_lsp_state state;
 592   mpls_bool ingress;
 593   mpls_bool filtered;
 594   mpls_bool in_tree;
 595   struct ldp_session *session;
 596   uint32_t attempt_count;
 597   mpls_timer_handle action_timer;
 598   ldp_lsp_state action;
 599   ldp_fec *fec;
 600
 601   MPLS_LIST_ELEM(ldp_attr) _session;
 602   MPLS_LIST_ELEM(ldp_attr) _global;
 603   MPLS_LIST_ELEM(ldp_attr) _ds_attr;
 604   MPLS_LIST_ELEM(ldp_attr) _fs;
 605
 606   mplsLdpFecTlv_t fecTlv;
 607   mplsLdpGenLblTlv_t genLblTlv;
 608   mplsLdpAtmLblTlv_t atmLblTlv;
 609   mplsLdpFrLblTlv_t frLblTlv;
 610   mplsLdpHopTlv_t hopCountTlv;
 611   mplsLdpPathTlv_t pathVecTlv;
 612   mplsLdpLblMsgIdTlv_t lblMsgIdTlv;
 613   mplsLdpLspIdTlv_t lspidTlv;
 614   mplsLdpTrafficTlv_t trafficTlv;
 615   mplsLdpStatusTlv_t statusTlv;
 616   mplsLdpRetMsgTlv_t retMsgTlv;
 617
 618   uint8_t fecTlvExists:1;
 619   uint8_t genLblTlvExists:1;
 620   uint8_t atmLblTlvExists:1;
 621   uint8_t frLblTlvExists:1;
 622   uint8_t hopCountTlvExists:1;
 623   uint8_t pathVecTlvExists:1;
 624   uint8_t lblMsgIdTlvExists:1;
 625   uint8_t lspidTlvExists:1;
 626   uint8_t trafficTlvExists:1;
 627   uint8_t statusTlvExists:1;
 628   uint8_t retMsgTlvExists:1;
 629
 630   struct ldp_outlabel *outlabel;
 631   struct ldp_inlabel *inlabel;
 632
 633   /* only used for get() */
 634   uint32_t inlabel_index;
 635   uint32_t outlabel_index;
 636   uint32_t session_index;
 637 } ldp_attr;
 638
 639 typedef struct ldp_resource {
 640   MPLS_REFCNT_FIELD;
 641   MPLS_LIST_ELEM(ldp_resource) _global;
 642   struct ldp_tunnel *tunnel;
 643   uint32_t index;
 644   uint32_t max_rate;
 645   uint32_t mean_rate;
 646   uint32_t burst_size;
 647 } ldp_resource;
 648
 649 typedef struct ldp_hop {
 650   MPLS_REFCNT_FIELD;
 651   MPLS_LIST_ELEM(ldp_hop) _hop_list;
 652   struct ldp_hop_list *hop_list;
 653   uint32_t index;
 654   uint32_t hop_list_index;
 655   uint32_t path_option;
 656   mpls_inet_addr addr;
 657   uint32_t type;
 658 } ldp_hop;
 659
 660 typedef struct ldp_hop_list {
 661   MPLS_REFCNT_FIELD;
 662   MPLS_LIST_ELEM(ldp_hop_list) _global;
 663   struct _ldp_hop_list hop;
 664   struct ldp_tunnel *tunnel;
 665   uint32_t index;
 666 } ldp_hop_list;
 667
 668 typedef struct ldp_tunnel {
 669   MPLS_REFCNT_FIELD;
 670   MPLS_LIST_ELEM(ldp_tunnel) _global;
 671   MPLS_LIST_ELEM(ldp_tunnel) _outlabel;
 672   uint32_t index;
 673   mpls_inet_addr ingress_lsrid;
 674   ldp_addr egress_lsrid;
 675   char name[MPLS_MAX_IF_NAME];
 676   mpls_bool is_interface;
 677   uint32_t outlabel_index;
 678   struct ldp_outlabel *outlabel;
 679   uint32_t setup_prio;
 680   uint32_t hold_prio;
 681   uint32_t instance_prio;
 682   uint32_t resource_index;
 683   struct ldp_resource *resource;
 684   uint32_t hop_list_index;
 685   struct ldp_hop_list *hop_list;
 686   ldp_fec fec;
 687   mpls_admin_state_enum admin_state;
 688
 689   uint32_t primary_instance;
 690   uint32_t any_affinity;
 691   uint32_t all_affinity;
 692   uint32_t no_all_affinity;
 693   uint32_t path_in_use;
 694   uint32_t protocol;
 695   mpls_bool local_protect;
 696   uint32_t session_attr;
 697   uint32_t owner;
 698 } ldp_tunnel;
 699
 700 typedef void (*ldp_tree_callback) (void *);
 701
 702 #endif