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