source3/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_t 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         uint64_t 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 /* used for server information: client, nameserv and ipc */
 236 struct server_info_struct {
 237         fstring name;
 238         uint32_t type;
 239         fstring comment;
 240         fstring domain; /* used ONLY in ipc.c NOT namework.c */
 241         bool server_added; /* used ONLY in ipc.c NOT namework.c */
 242 };
 243
 244 /* This is used to hold the list of servers in my domain, and is
 245    contained within lists of domains. */
 246
 247 struct server_record {
 248         struct server_record *next;
 249         struct server_record *prev;
 250
 251         struct subnet_record *subnet;
 252
 253         struct server_info_struct serv;
 254         time_t death_time;
 255 };
 256
 257 /* A workgroup structure. It contains a list of servers. */
 258 struct work_record {
 259         struct work_record *next;
 260         struct work_record *prev;
 261
 262         struct subnet_record *subnet;
 263
 264         struct server_record *serverlist;
 265
 266         /* Stage of development from non-local-master up to local-master browser. */
 267         enum master_state mst_state;
 268
 269         /* Stage of development from non-domain-master to domain-master browser. */
 270         enum domain_state dom_state;
 271
 272         /* Stage of development from non-logon-server to logon server. */
 273         enum logon_state log_state;
 274
 275         /* Work group info. */
 276         unstring work_group;
 277         int     token;        /* Used when communicating with backup browsers. */
 278         unstring local_master_browser_name;      /* Current local master browser. */
 279
 280         /* Announce info. */
 281         time_t lastannounce_time;
 282         int announce_interval;
 283         bool    needannounce;
 284
 285         /* Timeout time for this workgroup. 0 means permanent. */
 286         time_t death_time;
 287
 288         /* Election info */
 289         bool    RunningElection;
 290         bool    needelection;
 291         int     ElectionCount;
 292         uint32_t  ElectionCriterion;
 293
 294         /* Domain master browser info. Used for efficient syncs. */
 295         struct nmb_name dmb_name;
 296         struct in_addr dmb_addr;
 297 };
 298
 299 /* typedefs needed to define copy & free functions for userdata. */
 300 struct userdata_struct;
 301
 302 typedef struct userdata_struct * (*userdata_copy_fn)(struct userdata_struct *);
 303 typedef void (*userdata_free_fn)(struct userdata_struct *);
 304
 305 /* Structure to define any userdata passed around. */
 306
 307 struct userdata_struct {
 308         userdata_copy_fn copy_fn;
 309         userdata_free_fn free_fn;
 310         unsigned int userdata_len;
 311         char data[16]; /* 16 is to ensure alignment/padding on all systems */
 312 };
 313
 314 struct response_record;
 315 struct packet_struct;
 316 struct res_rec;
 317
 318 /* typedef to define the function called when this response packet comes in. */
 319 typedef void (*response_function)(struct subnet_record *, struct response_record *,
 320                                   struct packet_struct *);
 321
 322 /* typedef to define the function called when this response record times out. */
 323 typedef void (*timeout_response_function)(struct subnet_record *,
 324                                           struct response_record *);
 325
 326 /* typedef to define the function called when the request that caused this
 327    response record to be created is successful. */
 328 typedef void (*success_function)(struct subnet_record *, struct userdata_struct *, ...);
 329
 330 /* typedef to define the function called when the request that caused this
 331    response record to be created is unsuccessful. */
 332 typedef void (*fail_function)(struct subnet_record *, struct response_record *, ...);
 333
 334 /* List of typedefs for success and fail functions of the different query
 335    types. Used to catch any compile time prototype errors. */
 336
 337 typedef void (*register_name_success_function)( struct subnet_record *,
 338                                                 struct userdata_struct *,
 339                                                 struct nmb_name *,
 340                                                 uint16_t,
 341                                                 int,
 342                                                 struct in_addr);
 343 typedef void (*register_name_fail_function)( struct subnet_record *,
 344                                              struct response_record *,
 345                                              struct nmb_name *);
 346
 347 typedef void (*release_name_success_function)( struct subnet_record *,
 348                                                struct userdata_struct *,
 349                                                struct nmb_name *,
 350                                                struct in_addr);
 351 typedef void (*release_name_fail_function)( struct subnet_record *,
 352                                             struct response_record *,
 353                                             struct nmb_name *);
 354
 355 typedef void (*refresh_name_success_function)( struct subnet_record *,
 356                                                struct userdata_struct *,
 357                                                struct nmb_name *,
 358                                                uint16_t,
 359                                                int,
 360                                                struct in_addr);
 361 typedef void (*refresh_name_fail_function)( struct subnet_record *,
 362                                             struct response_record *,
 363                                             struct nmb_name *);
 364
 365 typedef void (*query_name_success_function)( struct subnet_record *,
 366                                              struct userdata_struct *,
 367                                              struct nmb_name *,
 368                                              struct in_addr,
 369                                              struct res_rec *answers);
 370
 371 typedef void (*query_name_fail_function)( struct subnet_record *,
 372                                           struct response_record *,
 373                                           struct nmb_name *,
 374                                           int);
 375
 376 typedef void (*node_status_success_function)( struct subnet_record *,
 377                                               struct userdata_struct *,
 378                                               struct res_rec *,
 379                                               struct in_addr);
 380 typedef void (*node_status_fail_function)( struct subnet_record *,
 381                                            struct response_record *);
 382
 383 /* Initiated name queries are recorded in this list to track any responses. */
 384
 385 struct response_record {
 386         struct response_record *next;
 387         struct response_record *prev;
 388
 389         uint16_t response_id;
 390
 391         /* Callbacks for packets received or not. */
 392         response_function resp_fn;
 393         timeout_response_function timeout_fn;
 394
 395         /* Callbacks for the request succeeding or not. */
 396         success_function success_fn;
 397         fail_function fail_fn;
 398
 399         struct packet_struct *packet;
 400
 401         struct userdata_struct *userdata;
 402
 403         int num_msgs;
 404
 405         time_t repeat_time;
 406         time_t repeat_interval;
 407         int    repeat_count;
 408
 409         /* Recursion protection. */
 410         bool in_expiration_processing;
 411 };
 412
 413 /* A subnet structure. It contains a list of workgroups and netbios names. */
 414
 415 /*
 416    B nodes will have their own, totally separate subnet record, with their
 417    own netbios name set. These do NOT interact with other subnet records'
 418    netbios names.
 419 */
 420
 421 enum subnet_type {
 422         NORMAL_SUBNET              = 0,  /* Subnet listed in interfaces list. */
 423         UNICAST_SUBNET             = 1,  /* Subnet for unicast packets. */
 424         REMOTE_BROADCAST_SUBNET    = 2,  /* Subnet for remote broadcasts. */
 425         WINS_SERVER_SUBNET         = 3   /* Only created if we are a WINS server. */
 426 };
 427
 428 struct subnet_record {
 429         struct subnet_record *next;
 430         struct subnet_record *prev;
 431
 432         char  *subnet_name;      /* For Debug identification. */
 433         enum subnet_type type;   /* To catagorize the subnet. */
 434
 435         struct work_record     *workgrouplist; /* List of workgroups. */
 436         struct name_record     *namelist;   /* List of netbios names. */
 437         struct response_record *responselist;  /* List of responses expected. */
 438
 439         bool namelist_changed;
 440         bool work_changed;
 441
 442         struct in_addr bcast_ip;
 443         struct in_addr mask_ip;
 444         struct in_addr myip;
 445         int nmb_sock;               /* socket to listen for unicast 137. */
 446         int nmb_bcast;              /* socket to listen for broadcast 137. */
 447         int dgram_sock;             /* socket to listen for unicast 138. */
 448         int dgram_bcast;            /* socket to listen for broadcast 138. */
 449 };
 450
 451 /* A resource record. */
 452 struct res_rec {
 453         struct nmb_name rr_name;
 454         int rr_type;
 455         int rr_class;
 456         int ttl;
 457         int rdlength;
 458         char rdata[MAX_DGRAM_SIZE];
 459 };
 460
 461 /* Define these so we can pass info back to caller of name_query */
 462 #define NM_FLAGS_RS 0x80 /* Response. Cheat     */
 463 #define NM_FLAGS_AA 0x40 /* Authoritative       */
 464 #define NM_FLAGS_TC 0x20 /* Truncated           */
 465 #define NM_FLAGS_RD 0x10 /* Recursion Desired   */
 466 #define NM_FLAGS_RA 0x08 /* Recursion Available */
 467 #define NM_FLAGS_B  0x01 /* Broadcast           */
 468
 469 /* An nmb packet. */
 470 struct nmb_packet {
 471         struct {
 472                 int name_trn_id;
 473                 int opcode;
 474                 bool response;
 475                 struct {
 476                         bool bcast;
 477                         bool recursion_available;
 478                         bool recursion_desired;
 479                         bool trunc;
 480                         bool authoritative;
 481                 } nm_flags;
 482                 int rcode;
 483                 int qdcount;
 484                 int ancount;
 485                 int nscount;
 486                 int arcount;
 487         } header;
 488
 489         struct {
 490                 struct nmb_name question_name;
 491                 int question_type;
 492                 int question_class;
 493         } question;
 494
 495         struct res_rec *answers;
 496         struct res_rec *nsrecs;
 497         struct res_rec *additional;
 498 };
 499
 500 /* msg_type field options - from rfc1002. */
 501
 502 #define DGRAM_UNIQUE 0x10
 503 #define DGRAM_GROUP 0x11
 504 #define DGRAM_BROADCAST 0x12
 505 /* defined in IDL
 506 #define DGRAM_ERROR 0x13
 507 */
 508 #define DGRAM_QUERY_REQUEST 0x14
 509 #define DGRAM_POSITIVE_QUERY_RESPONSE 0x15
 510 #define DGRAM_NEGATIVE_QUERT_RESPONSE 0x16
 511
 512 /* A datagram - this normally contains SMB data in the data[] array. */
 513
 514 struct dgram_packet {
 515         struct {
 516                 int msg_type;
 517                 struct {
 518                         enum node_type node_type;
 519                         bool first;
 520                         bool more;
 521                 } flags;
 522                 int dgm_id;
 523                 struct in_addr source_ip;
 524                 int source_port;
 525                 int dgm_length;
 526                 int packet_offset;
 527         } header;
 528         struct nmb_name source_name;
 529         struct nmb_name dest_name;
 530         int datasize;
 531         char data[MAX_DGRAM_SIZE];
 532 };
 533
 534 /* Define a structure used to queue packets. This will be a linked
 535  list of nmb packets. */
 536
 537 struct packet_struct
 538 {
 539         struct packet_struct *next;
 540         struct packet_struct *prev;
 541         bool locked;
 542         struct in_addr ip;
 543         int port;
 544         int recv_fd;
 545         int send_fd;
 546         time_t timestamp;
 547         enum packet_type packet_type;
 548         union {
 549                 struct nmb_packet nmb;
 550                 struct dgram_packet dgram;
 551         } packet;
 552 };
 553
 554 /* Ids for netbios packet types. */
 555
 556 #define ANN_HostAnnouncement         1
 557 #define ANN_AnnouncementRequest      2
 558 #define ANN_Election                 8
 559 #define ANN_GetBackupListReq         9
 560 #define ANN_GetBackupListResp       10
 561 #define ANN_BecomeBackup            11
 562 #define ANN_DomainAnnouncement      12
 563 #define ANN_MasterAnnouncement      13
 564 #define ANN_ResetBrowserState       14
 565 #define ANN_LocalMasterAnnouncement 15
 566
 567
 568 /* Broadcast packet announcement intervals, in minutes. */
 569
 570 /* Attempt to add domain logon and domain master names. */
 571 #define CHECK_TIME_ADD_DOM_NAMES 5
 572
 573 /* Search for master browsers of workgroups samba knows about,
 574    except default. */
 575 #define CHECK_TIME_MST_BROWSE       5
 576
 577 /* Request backup browser announcements from other servers. */
 578 #define CHECK_TIME_ANNOUNCE_BACKUP 15
 579
 580 /* Request host announcements from other servers: min and max of interval. */
 581 #define CHECK_TIME_MIN_HOST_ANNCE   3
 582 #define CHECK_TIME_MAX_HOST_ANNCE  12
 583
 584 /* Announce as master to WINS server and any Primary Domain Controllers. */
 585 #define CHECK_TIME_MST_ANNOUNCE    15
 586
 587 /* Time between syncs from domain master browser to local master browsers. */
 588 #define CHECK_TIME_DMB_TO_LMB_SYNC    15
 589
 590 /* Do all remote announcements this often. */
 591 #define REMOTE_ANNOUNCE_INTERVAL 180
 592
 593 /* what is the maximum period between name refreshes. Note that this only
 594    affects non-permanent self names (in seconds) */
 595 #define MAX_REFRESH_TIME (60*20)
 596
 597 /* The Extinction interval: 4 days, time a node will stay in released state  */
 598 #define EXTINCTION_INTERVAL (4*24*60*60)
 599
 600 /* The Extinction time-out: 1 day, time a node will stay in deleted state */
 601 #define EXTINCTION_TIMEOUT (24*60*60)
 602
 603 /* Macro's to enumerate subnets either with or without
 604    the UNICAST subnet. */
 605
 606 extern struct subnet_record *subnetlist;
 607 extern struct subnet_record *unicast_subnet;
 608 extern struct subnet_record *wins_server_subnet;
 609 extern struct subnet_record *remote_broadcast_subnet;
 610
 611 #define FIRST_SUBNET subnetlist
 612 #define NEXT_SUBNET_EXCLUDING_UNICAST(x) ((x)->next)
 613 #define NEXT_SUBNET_INCLUDING_UNICAST(x) (get_next_subnet_maybe_unicast((x)))
 614
 615 /* wins replication record used between nmbd and wrepld */
 616 typedef struct _WINS_RECORD {
 617         char name[17];
 618         char type;
 619         int nb_flags;
 620         int wins_flags;
 621         uint64_t id;
 622         int num_ips;
 623         struct in_addr ip[25];
 624         struct in_addr wins_ip;
 625 } WINS_RECORD;
 626
 627 /* To be removed. */
 628 enum state_type { TEST };
 629 #endif /* _NAMESERV_H_ */