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