OSPF_LS_HEADER                              ls_header;} OSPF_LS_HEADER_QUEUE;typedef struct OSPF_INTERFACE{    struct OSPF_INTERFACE       *sptr_forward_link;    struct OSPF_INTERFACE       *sptr_backward_link;    struct ifnet                *vx_ospf_interface;    USHORT                      ifnet_index;   /* if_index from struct ifnet */    USHORT                      ifnet_flags;    M_BLK_ID                    pSpfInmMblk;    /* for OSPF_ADDR_ALLSPF */    M_BLK_ID                    pDrInmMblk;     /* for OSPF_ADDR_ALLDR */    ULONG                       interface_index;    ULONG                       area_id;    BYTE_ENUM (BOOLEAN)         port_enabled;    enum OSPF_INTERFACE_TYPE    type;    enum OSPF_INTERFACE_STATE   state;    ULONG                       events;  /* Number of state changes */    ULONG                       address;    ULONG                       netmask;    ULONG                       mtu;    struct OSPF_AREA_ENTRY      *sptr_area;  /* The area this interface is in */    struct OSPF_AREA_ENTRY      *sptr_transit_area;    ULONG                       source_area_id_for_virtual_link;    ULONG                       router_dead_interval;  /* Number of seconds before the router's sptr_neighbors will declare it down */    ULONG                       transmit_delay;       /* Estimated number of seconds it takes to transmit a link state update packet over this interface */    USHORT                      priority;   /* If set to 0, this router is not eligible to become designated router on the attached network */    OSPF_NEIGHBOR               *sptr_neighbor;    OSPF_NEIGHBOR               potential_neighbor;    ULONG                       virtual_neighbor_rid;    USHORT                      number_of_neighbors_in_init_state;    USHORT                      number_of_neighbors_in_exchange_state;    USHORT                      number_of_neighbors_in_full_state;    OSPF_DESIGNATED_ROUTER_NODE designated_router;    OSPF_DESIGNATED_ROUTER_NODE backup_designated_router;    USHORT                      cost;   /* One for each type of service */    ULONG                       hello_interval;     /* Length of time, in seconds, between Hello packets sent on this interface */    ULONG                       poll_interval;      /* the default poll interval is 4 * the hello interval */    ULONG                       periodic_hello_time_counter;    BYTE_ENUM (BOOLEAN)		hello_timer_enabled;    /* SPR 85432 -- Begin */    ULONG			last_hello_time;    /* SPR 85432 -- End */    ULONG                       retransmit_interval;    ULONG                       periodic_retransmit_time_counter;    BYTE_ENUM (BOOLEAN)         retransmit_timer_enabled;    ULONG                       periodic_wait_time_counter;  /* single shot timer */    BYTE_ENUM (BOOLEAN)         wait_timer_enabled;    ULONG                       periodic_delayed_acknowledgement_time_counter;  /* single shot timer - sort of */    BYTE_ENUM (BOOLEAN)         delayed_acknowledgement_timer_enabled;    OSPF_AUTHENTICATION         authentication;    OSPF_AUTHENTICATION         authentication2;  /* Alternate authentication */    OSPF_AUTHENTICATION_KEY     *sptr_authentication_key;    UNION_OSPF_INTERFACE_FLAGS  flags;    OSPF_LS_HEADER_QUEUE        *sptr_head_of_delayed_acknowledgement_list;    ULONG                       number_of_acknowledgements_on_delayed_acknowledgement_list;    ULONG                       lock_time;    ULONG                       up_time;  /* Time interface came up */    BYTE_ENUM (BOOLEAN)         point_timer_enabled;    ULONG                       port_number; /* Unnumbered link support jkw */    BYTE_ENUM (BOOLEAN)         passive;    ULONG                       unnumbered_dest_ip;    /* unnumbered link dest ip */    ULONG                       unnumbered_router_id;  /* unnumbered link router id */    ULONG                       nbma_ptmp_neighbor_address;  /* __NBMA_PTMP__ */} OSPF_INTERFACE;typedef struct OSPF_INTERFACE_NODE{    struct OSPF_INTERFACE_NODE *sptr_forward_link;    struct OSPF_INTERFACE_NODE *sptr_backward_link;    OSPF_INTERFACE *sptr_interface;} OSPF_INTERFACE_NODE ;typedef struct OSPF_HOSTS{    struct OSPF_HOSTS       *sptr_forward_link;    struct OSPF_HOSTS       *sptr_backward_link;    ULONG                   interface_address;    ULONG                   type_of_service;    USHORT                  cost;    BYTE_ENUM (BOOLEAN)     status;    ULONG                   area_id;} OSPF_HOSTS;typedef struct OSPF_SHORTEST_PATH_NODE{        struct OSPF_SHORTEST_PATH_NODE  *sptr_forward_link;        struct OSPF_SHORTEST_PATH_NODE  *sptr_backward_link;        ULONG                                           vertex;        BYTE_ENUM (OSPF_LS_TYPE)                        vertex_type;        OSPF_LS_DATABASE_ENTRY                  *sptr_database_entry;        ULONG                                           cost;        ULONG                                           intervening_router;        OSPF_NEXT_HOP_BLOCK                             *sptr_next_hop;} OSPF_SHORTEST_PATH_NODE;#if (_BYTE_ORDER == _LITTLE_ENDIAN )typedef _struct{        BIT_FIELD (enum, BOOLEAN)       transit:1;                      /* This is a transit area */        BIT_FIELD (enum, BOOLEAN)       virtual_up:1;           /* One or more virtual links in this area are up */        BIT_FIELD (enum, BOOLEAN)       stub:1;                         /* This is a  area (no external routes) */        BIT_FIELD (enum, BOOLEAN)       nssa:1;                         /* This is a not so stubby area */        BIT_FIELD (enum, BOOLEAN)       stub_default:1;         /* Inject default into this stub area */        BIT_FIELD (enum,BOOLEAN)        not_used:3;} _pack OSPF_AREA_FLAGS;#else /* _BYTE_ORDER == _BIG_ENDIAN */typedef _struct OSPF_AREA_FLAGS{        BIT_FIELD (enum,BOOLEAN)        not_used:3;        BIT_FIELD (enum, BOOLEAN)       stub_default:1;         /* Inject default into this stub area */        BIT_FIELD (enum, BOOLEAN)       nssa:1;                         /* This is a not so stubby area */        BIT_FIELD (enum, BOOLEAN)       stub:1;                         /* This is a  area (no external routes) */        BIT_FIELD (enum, BOOLEAN)       virtual_up:1;           /* One or more virtual links in this area are up */        BIT_FIELD (enum, BOOLEAN)       transit:1;                      /* This is a transit area */} _pack OSPF_AREA_FLAGS;#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */typedef _union  UNION_OSPF_AREA_FLAGS{        OSPF_AREA_FLAGS _bit;        BYTE                    _byte;} _pack UNION_OSPF_AREA_FLAGS;typedef struct OSPF_LS_DATABASE_HEAD    {    /* SPR#76812 */    AVL_NODE *                  sptr_avl_database_entry;    OSPF_LS_DATABASE_ENTRY *    sptr_linear_database_entry;    BYTE_ENUM (BOOLEAN)         rerun;                                                                                          /* rerun this row - partial update */    } OSPF_LS_DATABASE_HEAD;typedef struct OSPF_ADDRESS_RANGE_LIST_ENTRY    /* list of networks associated with an area (section 6 of OSPF Version 2 specification, dated June 1995) */{        struct OSPF_ADDRESS_RANGE_LIST_ENTRY            *sptr_forward_link;        struct OSPF_ADDRESS_RANGE_LIST_ENTRY            *sptr_backward_link;    ULONG                               area_id;        ULONG                                                           network;        ULONG                                                           mask;        BYTE_ENUM (BOOLEAN)                                             advertise;        BYTE_ENUM (BOOLEAN)                                             active;        ULONG                                                           cost;        struct OSPF_ROUTING_TABLE_NODE          *sptr_discard_entries;} OSPF_ADDRESS_RANGE_LIST_ENTRY;typedef struct OSPF_AREA_ENTRY{        struct OSPF_AREA_ENTRY                                  *sptr_forward_link;        struct OSPF_AREA_ENTRY                                  *sptr_backward_link;        ULONG                                                           area_id;        /* area address ranges */        ULONG                                                           number_of_address_ranges;                               /* for this area */        OSPF_ADDRESS_RANGE_LIST_ENTRY                   *sptr_address_ranges;        /* associated router interfaces */        OSPF_INTERFACE                                          *sptr_interfaces;                                               /* this is setup at configuration time */        /* summary links advertisements */        struct OSPF_ADVERTISEMENT_NODE          *sptr_summary_advertisement_list_head;        UNION_OSPF_AREA_FLAGS                           flags;                                                                  /* Various state bits */        ULONG                                                           stub_default_cost;        /* shortest-path tree */        OSPF_SHORTEST_PATH_NODE                                 shortest_path_first_tree;                               /* area's shortest path first tree; head is this router */        ULONG                                                           shortest_path_first_run_count;                  /* # times spf has been run for this area */        BYTE_ENUM (BOOLEAN)                                     run_shortest_path_calculation;        ULONG                                                           shortest_path_calculation_time_counter;        OSPF_SHORTEST_PATH_NODE                                 *sptr_candidate;                                                /* area's candidate list for dijkstra */        OSPF_LS_DATABASE_HEAD                                   ls_database_hash_table[TYPE_7_LSA + 1][OSPF_HASH_TABLE_SIZE];        /* opaque lsa new lsdb for opaque lsa jkw*/        OSPF_LS_DATABASE_HEAD               opaque_ls_database_hash_table[MAX_OPAQUE_NUM + 1][OSPF_HASH_TABLE_SIZE];        USHORT                                                          number_of_autonomous_system_boundary_routers;        OSPF_ROUTING_TABLE_ENTRY                        autonomous_system_boundary_routers;        USHORT                                                          number_of_area_border_routers;        OSPF_ROUTING_TABLE_ENTRY                        area_border_routers;        USHORT                                                          number_of_neighbors_in_init_state;        USHORT                                                          number_of_neighbors_in_exchange_state;        USHORT                                                          number_of_neighbors_in_full_state;        USHORT                                                          number_of_interfaces_in_up_state;        ULONG                                                           lock_time;        BYTE                                                            build_router;        BYTE_ENUM (BOOLEAN)                                     bring_up_virtual_links;        ULONG                                                           periodic_MinLSInterval_time_counter;        BYTE_ENUM (BOOLEAN)                                             MinLSInterval_timer_enabled;        BYTE_ENUM (BOOLEAN)                     inject_summary_lsa_into_stub_area;        USHORT                                                          mib_number_of_link_state_advertisements;        ULONG                                                           mib_checksum_sum;    ULONG                                                               mib_stub_metric_type;   /* 1 = ospf metric, 2 = comparable cost, 3 = non comparable */    USHORT                              mib_number_of_type10_lsa;    ULONG                               mib_type10_checksum_sum;        ULONG                                                           nssa_abr_to_convert_type_7_to_type_5;} OSPF_AREA_ENTRY;typedef struct OSPF_STUB_AREA_ENTRY{        struct OSPF_STUB_AREA_ENTRY     *sptr_forward_link;        struct OSPF_STUB_AREA_ENTRY     *sptr_backward_link;        struct OSPF_AREA_ENTRY                  *sptr_area;} OSPF_STUB_AREA_ENTRY;typedef struct OSPF_NSSA_AREA_ENTRY{        struct OSPF_NSSA_AREA_ENTRY     *sptr_forward_link;        struct OSPF_NSSA_AREA_ENTRY     *sptr_backward_link;        struct OSPF_AREA_ENTRY                  *sptr_area;} OSPF_NSSA_AREA_ENTRY;typedef struct OSPF_TRANSIT_AREA_ENTRY{        struct OSPF_TRANSIT_AREA_ENTRY  *sptr_forward_link;        struct OSPF_TRANSIT_AREA_ENTRY  *sptr_backward_link;        struct OSPF_AREA_ENTRY                  *sptr_area;} OSPF_TRANSIT_AREA_ENTRY;/**********************************//* Link State Database Structures *//**********************************/typedef struct OSPF_ADVERTISEMENT_NODE{        struct OSPF_ADVERTISEMENT_NODE  *sptr_forward_link;        struct OSPF_ADVERTISEMENT_NODE  *sptr_backward_link;        UNION_OSPF_LINK_STATE_ADVERTISEMENT     advertisement;} OSPF_ADVERTISEMENT_NODE;typedef struct OSPF_NEIGHBOR_LIST{    struct OSPF_NEIGHBOR_LIST   *sptr_forward_link;    struct OSPF_NEIGHBOR_LIST   *sptr_backward_link;    struct OSPF_NEIGHBOR                *sptr_neighbor;} OSPF_NEIGHBOR_LIST;typedef struct OSPF_PORT_CONFIGURATION_CLASS{        BYTE_ENUM (BOOLEAN)                     port_enabled;        USHORT                                  virtual_port_number;        ULONG                                   ip_address;        ULONG                                   subnetmask;        ULONG                                   area_id;        ULONG                                   transit_area_id;        ULONG                                   source_area_id_for_virtual_link; /* The area to which VLink belongs */        ULONG                                   type;        USHORT                                  authentication_type;        USHORT                                  md5_authentication_key_ID;        BYTE                                    simple_plain_text_or_md5_password[OSPF_AUTHENTICATION_SIZE];        ULONG                                   router_dead_interval;        ULONG                                   transmit_delay;        USHORT                                  priority;        USHORT                                  cost;        ULONG                                   hello_interval;        ULONG                                   virtual_neighbor_rid;   /* Router ID */        BYTE_ENUM (BOOLEAN)                     rfc1042_enabled;        enum LSL_PACKET_TYPE    lsl_packet_type;        BYTE_ENUM (BOOLEAN)                     point_to_point_link;