source/include/nameserv.h

   1 #ifndef _NAMESERV_H_
   2 #define _NAMESERV_H_
   3 /*
   4    Unix SMB/CIFS implementation.
   5    NBT netbios header - version 2
   6    Copyright (C) Andrew Tridgell 1994-1998
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20
  21 */
  22
  23 #define INFO_VERSION    "INFO/version"
  24 #define INFO_COUNT      "INFO/num_entries"
  25 #define INFO_ID_HIGH    "INFO/id_high"
  26 #define INFO_ID_LOW     "INFO/id_low"
  27 #define ENTRY_PREFIX    "ENTRY/"
  28
  29 #define PERMANENT_TTL 0
  30
  31 /* NTAS uses 2, NT uses 1, WfWg uses 0 */
  32 #define MAINTAIN_LIST    2
  33 #define ELECTION_VERSION 1
  34
  35 #define MAX_DGRAM_SIZE (576) /* tcp/ip datagram limit is 576 bytes */
  36 #define MIN_DGRAM_SIZE 12
  37
  38 /*********************************************************
  39  Types of reply packet.
  40 **********************************************************/
  41
  42 enum netbios_reply_type_code { NMB_QUERY, NMB_STATUS, NMB_REG, NMB_REG_REFRESH,
  43                                NMB_REL, NMB_WAIT_ACK, NMB_MULTIHOMED_REG,
  44                                WINS_REG, WINS_QUERY };
  45
  46 /* From rfc1002, 4.2.1.2 */
  47 /* Question types. */
  48 #define QUESTION_TYPE_NB_QUERY  0x20
  49 #define QUESTION_TYPE_NB_STATUS 0x21
  50
  51 /* Question class */
  52 #define QUESTION_CLASS_IN  0x1
  53
  54 /* Opcode definitions */
  55 #define NMB_NAME_QUERY_OPCODE       0x0
  56 #define NMB_NAME_REG_OPCODE         0x05 /* see rfc1002.txt 4.2.2,3,5,6,7,8 */
  57 #define NMB_NAME_RELEASE_OPCODE     0x06 /* see rfc1002.txt 4.2.9,10,11 */
  58 #define NMB_WACK_OPCODE             0x07 /* see rfc1002.txt 4.2.16 */
  59 /* Ambiguity in rfc1002 about which of these is correct. */
  60 /* WinNT uses 8 by default but can be made to use 9. */
  61 #define NMB_NAME_REFRESH_OPCODE_8   0x08 /* see rfc1002.txt 4.2.4 */
  62 #define NMB_NAME_REFRESH_OPCODE_9   0x09 /* see rfc1002.txt 4.2.4 */
  63 #define NMB_NAME_MULTIHOMED_REG_OPCODE 0x0F /* Invented by Microsoft. */
  64
  65 /* XXXX what about all the other types?? 0x1, 0x2, 0x3, 0x4, 0x8? */
  66
  67 /* Resource record types. rfc1002 4.2.1.3 */
  68 #define RR_TYPE_A                  0x1
  69 #define RR_TYPE_NS                 0x2
  70 #define RR_TYPE_NULL               0xA
  71 #define RR_TYPE_NB                0x20
  72 #define RR_TYPE_NBSTAT            0x21
  73
  74 /* Resource record class. */
  75 #define RR_CLASS_IN                0x1
  76
  77 /* NetBIOS flags */
  78 #define NB_GROUP  0x80
  79 #define NB_PERM   0x02
  80 #define NB_ACTIVE 0x04
  81 #define NB_CONFL  0x08
  82 #define NB_DEREG  0x10
  83 #define NB_BFLAG  0x00 /* Broadcast node type. */
  84 #define NB_PFLAG  0x20 /* Point-to-point node type. */
  85 #define NB_MFLAG  0x40 /* Mixed bcast & p-p node type. */
  86 #define NB_HFLAG  0x60 /* Microsoft 'hybrid' node type. */
  87 #define NB_NODETYPEMASK 0x60
  88 /* Mask applied to outgoing NetBIOS flags. */
  89 #define NB_FLGMSK 0xE0
  90
  91 /* The wins flags. Looks like the nbflags ! */
  92 #define WINS_UNIQUE     0x00 /* Unique record */
  93 #define WINS_NGROUP     0x01 /* Normal Group eg: 1B */
  94 #define WINS_SGROUP     0x02 /* Special Group eg: 1C */
  95 #define WINS_MHOMED     0x03 /* MultiHomed */
  96
  97 #define WINS_ACTIVE     0x00 /* active record */
  98 #define WINS_RELEASED   0x04 /* released record */
  99 #define WINS_TOMBSTONED 0x08 /* tombstoned record */
 100 #define WINS_DELETED    0x0C /* deleted record */
 101
 102 #define WINS_STATE_MASK 0x0C
 103
 104 #define WINS_LOCAL      0x00 /* local record */
 105 #define WINS_REMOTE     0x10 /* remote record */
 106
 107 #define WINS_BNODE      0x00 /* Broadcast node */
 108 #define WINS_PNODE      0x20 /* PtP node */
 109 #define WINS_MNODE      0x40 /* Mixed node */
 110 #define WINS_HNODE      0x60 /* Hybrid node */
 111
 112 #define WINS_NONSTATIC  0x00 /* dynamic record */
 113 #define WINS_STATIC     0x80 /* static record */
 114
 115 #define WINS_STATE_ACTIVE(p) (((p)->data.wins_flags & WINS_STATE_MASK) == WINS_ACTIVE)
 116
 117
 118 /* NetBIOS flag identifier. */
 119 #define NAME_GROUP(p)  ((p)->data.nb_flags & NB_GROUP)
 120 #define NAME_BFLAG(p) (((p)->data.nb_flags & NB_NODETYPEMASK) == NB_BFLAG)
 121 #define NAME_PFLAG(p) (((p)->data.nb_flags & NB_NODETYPEMASK) == NB_PFLAG)
 122 #define NAME_MFLAG(p) (((p)->data.nb_flags & NB_NODETYPEMASK) == NB_MFLAG)
 123 #define NAME_HFLAG(p) (((p)->data.nb_flags & NB_NODETYPEMASK) == NB_HFLAG)
 124
 125 /* Samba name state for a name in a namelist. */
 126 #define NAME_IS_ACTIVE(p)        ((p)->data.nb_flags & NB_ACTIVE)
 127 #define NAME_IN_CONFLICT(p)      ((p)->data.nb_flags & NB_CONFL)
 128 #define NAME_IS_DEREGISTERING(p) ((p)->data.nb_flags & NB_DEREG)
 129
 130 /* Error codes for NetBIOS requests. */
 131 #define FMT_ERR   0x1       /* Packet format error. */
 132 #define SRV_ERR   0x2       /* Internal server error. */
 133 #define NAM_ERR   0x3       /* Name does not exist. */
 134 #define IMP_ERR   0x4       /* Request not implemented. */
 135 #define RFS_ERR   0x5       /* Request refused. */
 136 #define ACT_ERR   0x6       /* Active error - name owned by another host. */
 137 #define CFT_ERR   0x7       /* Name in conflict error. */
 138
 139 #define REFRESH_TIME (15*60)
 140 #define NAME_POLL_REFRESH_TIME (5*60)
 141 #define NAME_POLL_INTERVAL 15
 142
 143 /* Workgroup state identifiers. */
 144 #define AM_POTENTIAL_MASTER_BROWSER(work) ((work)->mst_state == MST_POTENTIAL)
 145 #define AM_LOCAL_MASTER_BROWSER(work) ((work)->mst_state == MST_BROWSER)
 146 #define AM_DOMAIN_MASTER_BROWSER(work) ((work)->dom_state == DOMAIN_MST)
 147 #define AM_DOMAIN_MEMBER(work) ((work)->log_state == LOGON_SRV)
 148
 149 /* Microsoft browser NetBIOS name. */
 150 #define MSBROWSE "\001\002__MSBROWSE__\002"
 151
 152 /* Mail slots. */
 153 #define BROWSE_MAILSLOT    "\\MAILSLOT\\BROWSE"
 154 #define NET_LOGON_MAILSLOT "\\MAILSLOT\\NET\\NETLOGON"
 155 #define NT_LOGON_MAILSLOT  "\\MAILSLOT\\NET\\NTLOGON"
 156 #define LANMAN_MAILSLOT    "\\MAILSLOT\\LANMAN"
 157
 158 /* Samba definitions for find_name_on_subnet(). */
 159 #define FIND_ANY_NAME   0
 160 #define FIND_SELF_NAME  1
 161
 162 /*
 163  * The different name types that can be in namelists.
 164  *
 165  * SELF_NAME should only be on the broadcast and unicast subnets.
 166  * LMHOSTS_NAME should only be in the remote_broadcast_subnet.
 167  * REGISTER_NAME, DNS_NAME, DNSFAIL_NAME should only be in the wins_server_subnet.
 168  * WINS_PROXY_NAME should only be on the broadcast subnets.
 169  * PERMANENT_NAME can be on all subnets except remote_broadcast_subnet.
 170  *
 171  */
 172
 173 enum name_source {LMHOSTS_NAME, REGISTER_NAME, SELF_NAME, DNS_NAME,
 174                   DNSFAIL_NAME, PERMANENT_NAME, WINS_PROXY_NAME};
 175 enum node_type {B_NODE=0, P_NODE=1, M_NODE=2, NBDD_NODE=3};
 176 enum packet_type {NMB_PACKET, DGRAM_PACKET};
 177
 178 enum master_state {
 179         MST_NONE,
 180         MST_POTENTIAL,
 181         MST_BACKUP,
 182         MST_MSB,
 183         MST_BROWSER,
 184         MST_UNBECOMING_MASTER
 185 };
 186
 187 enum domain_state {
 188         DOMAIN_NONE,
 189         DOMAIN_WAIT,
 190         DOMAIN_MST
 191 };
 192
 193 enum logon_state {
 194         LOGON_NONE,
 195         LOGON_WAIT,
 196         LOGON_SRV
 197 };
 198
 199 struct subnet_record;
 200
 201 struct nmb_data {
 202         uint16 nb_flags;         /* Netbios flags. */
 203         int num_ips;             /* Number of ip entries. */
 204         struct in_addr *ip;      /* The ip list for this name. */
 205
 206         enum name_source source; /* Where the name came from. */
 207
 208         time_t death_time; /* The time the record must be removed (do not remove if 0). */
 209         time_t refresh_time; /* The time the record should be refreshed. */
 210
 211         SMB_BIG_UINT id;                /* unique id */
 212         struct in_addr wins_ip; /* the adress of the wins server this record comes from */
 213
 214         int wins_flags;         /* similar to the netbios flags but different ! */
 215 };
 216
 217 /* This structure represents an entry in a local netbios name list. */
 218 struct name_record {
 219         struct name_record *prev, *next;
 220         struct subnet_record *subnet;
 221         struct nmb_name       name;    /* The netbios name. */
 222         struct nmb_data       data;    /* The netbios data. */
 223 };
 224
 225 /* Browser cache for synchronising browse lists. */
 226 struct browse_cache_record {
 227         struct browse_cache_record *prev, *next;
 228         unstring        lmb_name;
 229         unstring        work_group;
 230         struct in_addr ip;
 231         time_t         sync_time;
 232         time_t         death_time; /* The time the record must be removed. */
 233 };
 234
 235 /* This is used to hold the list of servers in my domain, and is
 236    contained within lists of domains. */
 237
 238 struct server_record {
 239         struct server_record *next;
 240         struct server_record *prev;
 241
 242         struct subnet_record *subnet;
 243
 244         struct server_info_struct serv;
 245         time_t death_time;
 246 };
 247
 248 /* A workgroup structure. It contains a list of servers. */
 249 struct work_record {
 250         struct work_record *next;
 251         struct work_record *prev;
 252
 253         struct subnet_record *subnet;
 254
 255         struct server_record *serverlist;
 256
 257         /* Stage of development from non-local-master up to local-master browser. */
 258         enum master_state mst_state;
 259
 260         /* Stage of development from non-domain-master to domain-master browser. */
 261         enum domain_state dom_state;
 262
 263         /* Stage of development from non-logon-server to logon server. */
 264         enum logon_state log_state;
 265
 266         /* Work group info. */
 267         unstring work_group;
 268         int     token;        /* Used when communicating with backup browsers. */
 269         unstring local_master_browser_name;      /* Current local master browser. */
 270
 271         /* Announce info. */
 272         time_t lastannounce_time;
 273         int announce_interval;
 274         bool    needannounce;
 275
 276         /* Timeout time for this workgroup. 0 means permanent. */
 277         time_t death_time;
 278
 279         /* Election info */
 280         bool    RunningElection;
 281         bool    needelection;
 282         int     ElectionCount;
 283         uint32  ElectionCriterion;
 284
 285         /* Domain master browser info. Used for efficient syncs. */
 286         struct nmb_name dmb_name;
 287         struct in_addr dmb_addr;
 288 };
 289
 290 /* typedefs needed to define copy & free functions for userdata. */
 291 struct userdata_struct;
 292
 293 typedef struct userdata_struct * (*userdata_copy_fn)(struct userdata_struct *);
 294 typedef void (*userdata_free_fn)(struct userdata_struct *);
 295
 296 /* Structure to define any userdata passed around. */
 297
 298 struct userdata_struct {
 299         userdata_copy_fn copy_fn;
 300         userdata_free_fn free_fn;
 301         unsigned int userdata_len;
 302         char data[16]; /* 16 is to ensure alignment/padding on all systems */
 303 };
 304
 305 struct response_record;
 306 struct packet_struct;
 307 struct res_rec;
 308
 309 /* typedef to define the function called when this response packet comes in. */
 310 typedef void (*response_function)(struct subnet_record *, struct response_record *,
 311                                   struct packet_struct *);
 312
 313 /* typedef to define the function called when this response record times out. */
 314 typedef void (*timeout_response_function)(struct subnet_record *,
 315                                           struct response_record *);
 316
 317 /* typedef to define the function called when the request that caused this
 318    response record to be created is successful. */
 319 typedef void (*success_function)(struct subnet_record *, struct userdata_struct *, ...);
 320
 321 /* typedef to define the function called when the request that caused this
 322    response record to be created is unsuccessful. */
 323 typedef void (*fail_function)(struct subnet_record *, struct response_record *, ...);
 324
 325 /* List of typedefs for success and fail functions of the different query
 326    types. Used to catch any compile time prototype errors. */
 327
 328 typedef void (*register_name_success_function)( struct subnet_record *,
 329                                                 struct userdata_struct *,
 330                                                 struct nmb_name *,
 331                                                 uint16,
 332                                                 int,
 333                                                 struct in_addr);
 334 typedef void (*register_name_fail_function)( struct subnet_record *,
 335                                              struct response_record *,
 336                                              struct nmb_name *);
 337
 338 typedef void (*release_name_success_function)( struct subnet_record *,
 339                                                struct userdata_struct *,
 340                                                struct nmb_name *,
 341                                                struct in_addr);
 342 typedef void (*release_name_fail_function)( struct subnet_record *,
 343                                             struct response_record *,
 344                                             struct nmb_name *);
 345
 346 typedef void (*refresh_name_success_function)( struct subnet_record *,
 347                                                struct userdata_struct *,
 348                                                struct nmb_name *,
 349                                                uint16,
 350                                                int,
 351                                                struct in_addr);
 352 typedef void (*refresh_name_fail_function)( struct subnet_record *,
 353                                             struct response_record *,
 354                                             struct nmb_name *);
 355
 356 typedef void (*query_name_success_function)( struct subnet_record *,
 357                                              struct userdata_struct *,
 358                                              struct nmb_name *,
 359                                              struct in_addr,
 360                                              struct res_rec *answers);
 361
 362 typedef void (*query_name_fail_function)( struct subnet_record *,
 363                                           struct response_record *,
 364                                           struct nmb_name *,
 365                                           int);
 366
 367 typedef void (*node_status_success_function)( struct subnet_record *,
 368                                               struct userdata_struct *,
 369                                               struct res_rec *,
 370                                               struct in_addr);
 371 typedef void (*node_status_fail_function)( struct subnet_record *,
 372                                            struct response_record *);
 373
 374 /* Initiated name queries are recorded in this list to track any responses. */
 375
 376 struct response_record {
 377         struct response_record *next;
 378         struct response_record *prev;
 379
 380         uint16 response_id;
 381
 382         /* Callbacks for packets received or not. */
 383         response_function resp_fn;
 384         timeout_response_function timeout_fn;
 385
 386         /* Callbacks for the request succeeding or not. */
 387         success_function success_fn;
 388         fail_function fail_fn;
 389
 390         struct packet_struct *packet;
 391
 392         struct userdata_struct *userdata;
 393
 394         int num_msgs;
 395
 396         time_t repeat_time;
 397         time_t repeat_interval;
 398         int    repeat_count;
 399
 400         /* Recursion protection. */
 401         bool in_expiration_processing;
 402 };
 403
 404 /* A subnet structure. It contains a list of workgroups and netbios names. */
 405
 406 /*
 407    B nodes will have their own, totally separate subnet record, with their
 408    own netbios name set. These do NOT interact with other subnet records'
 409    netbios names.
 410 */
 411
 412 enum subnet_type {
 413         NORMAL_SUBNET              = 0,  /* Subnet listed in interfaces list. */
 414         UNICAST_SUBNET             = 1,  /* Subnet for unicast packets. */
 415         REMOTE_BROADCAST_SUBNET    = 2,  /* Subnet for remote broadcasts. */
 416         WINS_SERVER_SUBNET         = 3   /* Only created if we are a WINS server. */
 417 };
 418
 419 struct subnet_record {
 420         struct subnet_record *next;
 421         struct subnet_record *prev;
 422
 423         char  *subnet_name;      /* For Debug identification. */
 424         enum subnet_type type;   /* To catagorize the subnet. */
 425
 426         struct work_record     *workgrouplist; /* List of workgroups. */
 427         struct name_record     *namelist;   /* List of netbios names. */
 428         struct response_record *responselist;  /* List of responses expected. */
 429
 430         bool namelist_changed;
 431         bool work_changed;
 432
 433         struct in_addr bcast_ip;
 434         struct in_addr mask_ip;
 435         struct in_addr myip;
 436         int nmb_sock;               /* socket to listen for unicast 137. */
 437         int dgram_sock;             /* socket to listen for unicast 138. */
 438 };
 439
 440 /* A resource record. */
 441 struct res_rec {
 442         struct nmb_name rr_name;
 443         int rr_type;
 444         int rr_class;
 445         int ttl;
 446         int rdlength;
 447         char rdata[MAX_DGRAM_SIZE];
 448 };
 449
 450 /* Define these so we can pass info back to caller of name_query */
 451 #define NM_FLAGS_RS 0x80 /* Response. Cheat     */
 452 #define NM_FLAGS_AA 0x40 /* Authoritative       */
 453 #define NM_FLAGS_TC 0x20 /* Truncated           */
 454 #define NM_FLAGS_RD 0x10 /* Recursion Desired   */
 455 #define NM_FLAGS_RA 0x08 /* Recursion Available */
 456 #define NM_FLAGS_B  0x01 /* Broadcast           */
 457
 458 /* An nmb packet. */
 459 struct nmb_packet {
 460         struct {
 461                 int name_trn_id;
 462                 int opcode;
 463                 bool response;
 464                 struct {
 465                         bool bcast;
 466                         bool recursion_available;
 467                         bool recursion_desired;
 468                         bool trunc;
 469                         bool authoritative;
 470                 } nm_flags;
 471                 int rcode;
 472                 int qdcount;
 473                 int ancount;
 474                 int nscount;
 475                 int arcount;
 476         } header;
 477
 478         struct {
 479                 struct nmb_name question_name;
 480                 int question_type;
 481                 int question_class;
 482         } question;
 483
 484         struct res_rec *answers;
 485         struct res_rec *nsrecs;
 486         struct res_rec *additional;
 487 };
 488
 489 /* msg_type field options - from rfc1002. */
 490
 491 #define DGRAM_UNIQUE 0x10
 492 #define DGRAM_GROUP 0x11
 493 #define DGRAM_BROADCAST 0x12
 494 /* defined in IDL
 495 #define DGRAM_ERROR 0x13
 496 */
 497 #define DGRAM_QUERY_REQUEST 0x14
 498 #define DGRAM_POSITIVE_QUERY_RESPONSE 0x15
 499 #define DGRAM_NEGATIVE_QUERT_RESPONSE 0x16
 500
 501 /* A datagram - this normally contains SMB data in the data[] array. */
 502
 503 struct dgram_packet {
 504         struct {
 505                 int msg_type;
 506                 struct {
 507                         enum node_type node_type;
 508                         bool first;
 509                         bool more;
 510                 } flags;
 511                 int dgm_id;
 512                 struct in_addr source_ip;
 513                 int source_port;
 514                 int dgm_length;
 515                 int packet_offset;
 516         } header;
 517         struct nmb_name source_name;
 518         struct nmb_name dest_name;
 519         int datasize;
 520         char data[MAX_DGRAM_SIZE];
 521 };
 522
 523 /* Define a structure used to queue packets. This will be a linked
 524  list of nmb packets. */
 525
 526 struct packet_struct
 527 {
 528         struct packet_struct *next;
 529         struct packet_struct *prev;
 530         bool locked;
 531         struct in_addr ip;
 532         int port;
 533         int fd;
 534         time_t timestamp;
 535         enum packet_type packet_type;
 536         union {
 537                 struct nmb_packet nmb;
 538                 struct dgram_packet dgram;
 539         } packet;
 540 };
 541
 542 /* NETLOGON opcodes */
 543
 544 #define QUERYFORPDC      7 /* Query for PDC. */
 545 #define SAM_UAS_CHANGE  10 /* Announce change to UAS or SAM. */
 546 #define QUERYFORPDC_R   12 /* Response to Query for PDC. */
 547 #define SAMLOGON        18
 548 #define SAMLOGON_R      19
 549 #define SAMLOGON_UNK_R  21
 550 #define SAMLOGON_AD_UNK_R 23
 551 #define SAMLOGON_AD_R   25
 552
 553 /* Ids for netbios packet types. */
 554
 555 #define ANN_HostAnnouncement         1
 556 #define ANN_AnnouncementRequest      2
 557 #define ANN_Election                 8
 558 #define ANN_GetBackupListReq         9
 559 #define ANN_GetBackupListResp       10
 560 #define ANN_BecomeBackup            11
 561 #define ANN_DomainAnnouncement      12
 562 #define ANN_MasterAnnouncement      13
 563 #define ANN_ResetBrowserState       14
 564 #define ANN_LocalMasterAnnouncement 15
 565
 566
 567 /* Broadcast packet announcement intervals, in minutes. */
 568
 569 /* Attempt to add domain logon and domain master names. */
 570 #define CHECK_TIME_ADD_DOM_NAMES 5
 571
 572 /* Search for master browsers of workgroups samba knows about,
 573    except default. */
 574 #define CHECK_TIME_MST_BROWSE       5
 575
 576 /* Request backup browser announcements from other servers. */
 577 #define CHECK_TIME_ANNOUNCE_BACKUP 15
 578
 579 /* Request host announcements from other servers: min and max of interval. */
 580 #define CHECK_TIME_MIN_HOST_ANNCE   3
 581 #define CHECK_TIME_MAX_HOST_ANNCE  12
 582
 583 /* Announce as master to WINS server and any Primary Domain Controllers. */
 584 #define CHECK_TIME_MST_ANNOUNCE    15
 585
 586 /* Time between syncs from domain master browser to local master browsers. */
 587 #define CHECK_TIME_DMB_TO_LMB_SYNC    15
 588
 589 /* Do all remote announcements this often. */
 590 #define REMOTE_ANNOUNCE_INTERVAL 180
 591
 592 /* what is the maximum period between name refreshes. Note that this only
 593    affects non-permanent self names (in seconds) */
 594 #define MAX_REFRESH_TIME (60*20)
 595
 596 /* The Extinction interval: 4 days, time a node will stay in released state  */
 597 #define EXTINCTION_INTERVAL (4*24*60*60)
 598
 599 /* The Extinction time-out: 1 day, time a node will stay in deleted state */
 600 #define EXTINCTION_TIMEOUT (24*60*60)
 601
 602 /* Macro's to enumerate subnets either with or without
 603    the UNICAST subnet. */
 604
 605 extern struct subnet_record *subnetlist;
 606 extern struct subnet_record *unicast_subnet;
 607 extern struct subnet_record *wins_server_subnet;
 608 extern struct subnet_record *remote_broadcast_subnet;
 609
 610 #define FIRST_SUBNET subnetlist
 611 #define NEXT_SUBNET_EXCLUDING_UNICAST(x) ((x)->next)
 612 #define NEXT_SUBNET_INCLUDING_UNICAST(x) (get_next_subnet_maybe_unicast((x)))
 613
 614 /* wins replication record used between nmbd and wrepld */
 615 typedef struct _WINS_RECORD {
 616         char name[17];
 617         char type;
 618         int nb_flags;
 619         int wins_flags;
 620         SMB_BIG_UINT id;
 621         int num_ips;
 622         struct in_addr ip[25];
 623         struct in_addr wins_ip;
 624 } WINS_RECORD;
 625
 626 /* To be removed. */
 627 enum state_type { TEST };
 628 #endif /* _NAMESERV_H_ */