source3/utils/net_serverid.c

   1 /*
   2    Samba Unix/Linux SMB client library
   3    net serverid commands
   4    Copyright (C) Volker Lendecke 2010
   5
   6    This program is free software; you can redistribute it and/or modify
   7    it under the terms of the GNU General Public License as published by
   8    the Free Software Foundation; either version 3 of the License, or
   9    (at your option) any later version.
  10
  11    This program is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14    GNU General Public License for more details.
  15
  16    You should have received a copy of the GNU General Public License
  17    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18 */
  19
  20 #include "includes.h"
  21 #include "utils/net.h"
  22 #include "dbwrap/dbwrap.h"
  23 #include "dbwrap/dbwrap_rbt.h"
  24 #include "serverid.h"
  25 #include "session.h"
  26 #include "lib/conn_tdb.h"
  27 #include "smbd/globals.h"
  28 #include "util_tdb.h"
  29
  30 static int net_serverid_list_fn(const struct server_id *id,
  31                                 uint32_t msg_flags, void *priv)
  32 {
  33         struct server_id_buf idbuf;
  34         d_printf("%s %llu 0x%x\n", server_id_str_buf(*id, &idbuf),
  35                  (unsigned long long)id->unique_id,
  36                  (unsigned int)msg_flags);
  37         return 0;
  38 }
  39
  40 static int net_serverid_list(struct net_context *c, int argc,
  41                              const char **argv)
  42 {
  43         d_printf("pid unique_id msg_flags\n");
  44         return serverid_traverse_read(net_serverid_list_fn, NULL) ? 0 : -1;
  45 }
  46
  47 static int net_serverid_wipe_fn(struct db_record *rec,
  48                                 const struct server_id *id,
  49                                 uint32_t msg_flags, void *private_data)
  50 {
  51         NTSTATUS status;
  52
  53         if (id->vnn != get_my_vnn()) {
  54                 return 0;
  55         }
  56         status = dbwrap_record_delete(rec);
  57         if (!NT_STATUS_IS_OK(status)) {
  58                 struct server_id_buf idbuf;
  59                 DEBUG(1, ("Could not delete serverid.tdb record %s: %s\n",
  60                           server_id_str_buf(*id, &idbuf), nt_errstr(status)));
  61         }
  62         return 0;
  63 }
  64
  65 static int net_serverid_wipe(struct net_context *c, int argc,
  66                              const char **argv)
  67 {
  68         return serverid_traverse(net_serverid_wipe_fn, NULL) ? 0 : -1;
  69 }
  70
  71
  72 struct wipedbs_record_marker {
  73         struct wipedbs_record_marker *prev, *next;
  74         TDB_DATA key, val;
  75         const char *desc;
  76 };
  77
  78 struct wipedbs_server_data {
  79         struct server_id server_id;
  80         const char *server_id_str;
  81         bool exists;
  82         struct wipedbs_record_marker *session_records;
  83         struct wipedbs_record_marker *tcon_records;
  84         struct wipedbs_record_marker *open_records;
  85 };
  86
  87 struct wipedbs_state {
  88         struct db_context *id2server_data;
  89         struct {
  90                 struct {
  91                         int total;
  92                         int existing;
  93                         int disconnected;
  94                 } server;
  95                 struct {
  96                         int total;
  97                         int disconnected;
  98                         int todelete;
  99                         int failure;
 100                 } session, tcon, open;
 101                 int open_timed_out;
 102         } stat;
 103         struct server_id *server_ids;
 104         bool *server_exists;
 105         int idx;
 106         struct db_context *session_db;
 107         struct db_context *tcon_db;
 108         struct db_context *open_db;
 109         struct timeval now;
 110         bool testmode;
 111         bool verbose;
 112 };
 113
 114 static struct wipedbs_server_data *get_server_data(struct wipedbs_state *state,
 115                                                    const struct server_id *id)
 116 {
 117         struct wipedbs_server_data *ret = NULL;
 118         TDB_DATA key, val = tdb_null;
 119         NTSTATUS status;
 120
 121         key = make_tdb_data((const void*)&id->unique_id, sizeof(id->unique_id));
 122         status = dbwrap_fetch(state->id2server_data, talloc_tos(), key, &val);
 123         if (NT_STATUS_IS_OK(status)) {
 124                 ret = *(struct wipedbs_server_data**) val.dptr;
 125                 TALLOC_FREE(val.dptr);
 126         } else if (NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND)) {
 127                 struct server_id_buf idbuf;
 128
 129                 server_id_str_buf(*id, &idbuf);
 130
 131                 ret = talloc_zero(state->id2server_data,
 132                                   struct wipedbs_server_data);
 133                 if (ret == NULL) {
 134                         DEBUG(0, ("Failed to allocate server entry for %s\n",
 135                                   idbuf.buf));
 136                         goto done;
 137                 }
 138                 ret->server_id = *id;
 139                 ret->server_id_str = talloc_strdup(ret, idbuf.buf);
 140                 ret->exists = true;
 141                 val = make_tdb_data((const void*)&ret, sizeof(ret));
 142                 status = dbwrap_store(state->id2server_data,
 143                                       key, val, TDB_INSERT);
 144                 if (!NT_STATUS_IS_OK(status)) {
 145                         DEBUG(0, ("Failed to store server entry for %s: %s\n",
 146                                   idbuf.buf, nt_errstr(status)));
 147                 }
 148                 goto done;
 149         } else {
 150                 struct server_id_buf idbuf;
 151                 DEBUG(0, ("Failed to fetch server entry for %s: %s\n",
 152                           server_id_str_buf(*id, &idbuf), nt_errstr(status)));
 153                 goto done;
 154         }
 155         if (!server_id_equal(id, &ret->server_id)) {
 156                 struct server_id_buf idbuf1, idbuf2;
 157                 DEBUG(0, ("uniq id collision for %s and %s\n",
 158                           server_id_str_buf(*id, &idbuf1),
 159                           server_id_str_buf(ret->server_id, &idbuf2)));
 160                 smb_panic("server_id->unique_id not unique!");
 161         }
 162 done:
 163         return ret;
 164 }
 165
 166 static int wipedbs_traverse_sessions(struct smbXsrv_session_global0 *session,
 167                                      void *wipedbs_state)
 168 {
 169         struct wipedbs_state *state =
 170                 talloc_get_type_abort(wipedbs_state,
 171                 struct wipedbs_state);
 172         struct wipedbs_server_data *sd;
 173         struct wipedbs_record_marker *rec;
 174         TDB_DATA tmp;
 175         int ret = -1;
 176
 177         assert(session->num_channels == 1);
 178
 179         state->stat.session.total++;
 180
 181         sd = get_server_data(state, &session->channels[0].server_id);
 182         if (sd == NULL) {
 183                 goto done;
 184         }
 185
 186         if (server_id_is_disconnected(&sd->server_id)) {
 187                 state->stat.session.disconnected++;
 188         }
 189
 190         rec = talloc_zero(sd, struct wipedbs_record_marker);
 191         if (rec == NULL) {
 192                 DEBUG(0, ("Out of memory!\n"));
 193                 goto done;
 194         }
 195
 196         tmp = dbwrap_record_get_key(session->db_rec);
 197         rec->key = tdb_data_talloc_copy(rec, tmp);
 198         tmp = dbwrap_record_get_value(session->db_rec);
 199         rec->val = tdb_data_talloc_copy(rec, tmp);
 200
 201         rec->desc = talloc_asprintf(
 202                 rec, "session[global: %u wire: %llu]",
 203                 session->session_global_id,
 204                 (long long unsigned)session->session_wire_id);
 205
 206         if ((rec->key.dptr == NULL) || (rec->val.dptr == NULL) ||
 207             (rec->desc == NULL))
 208         {
 209                 DEBUG(0, ("Out of memory!\n"));
 210                 goto done;
 211         }
 212
 213         state->session_db = dbwrap_record_get_db(session->db_rec);
 214
 215         DLIST_ADD(sd->session_records, rec);
 216         ret = 0;
 217 done:
 218         return ret;
 219 }
 220
 221 static int wipedbs_traverse_tcon(struct smbXsrv_tcon_global0 *tcon,
 222                                  void *wipedbs_state)
 223 {
 224         struct wipedbs_state *state =
 225                 talloc_get_type_abort(wipedbs_state,
 226                 struct wipedbs_state);
 227         struct wipedbs_server_data *sd;
 228         struct wipedbs_record_marker *rec;
 229         TDB_DATA tmp;
 230         int ret = -1;
 231
 232         state->stat.tcon.total++;
 233
 234         sd = get_server_data(state, &tcon->server_id);
 235         if (sd == NULL) {
 236                 goto done;
 237         }
 238
 239         if (server_id_is_disconnected(&sd->server_id)) {
 240                 state->stat.tcon.disconnected++;
 241         }
 242
 243         rec = talloc_zero(sd, struct wipedbs_record_marker);
 244         if (rec == NULL) {
 245                 DEBUG(0, ("Out of memory!\n"));
 246                 goto done;
 247         }
 248
 249         tmp = dbwrap_record_get_key(tcon->db_rec);
 250         rec->key = tdb_data_talloc_copy(rec, tmp);
 251         tmp = dbwrap_record_get_value(tcon->db_rec);
 252         rec->val = tdb_data_talloc_copy(rec, tmp);
 253
 254         rec->desc = talloc_asprintf(
 255                 rec, "tcon[global: %u wire: %u session: %u share: %s]",
 256                 tcon->tcon_global_id, tcon->tcon_wire_id,
 257                 tcon->session_global_id, tcon->share_name);
 258
 259         if ((rec->key.dptr == NULL) || (rec->val.dptr == NULL) ||
 260             (rec->desc == NULL))
 261         {
 262                 DEBUG(0, ("Out of memory!\n"));
 263                 goto done;
 264         }
 265
 266         state->tcon_db = dbwrap_record_get_db(tcon->db_rec);
 267
 268         DLIST_ADD(sd->tcon_records, rec);
 269         ret = 0;
 270
 271 done:
 272         return ret;
 273 }
 274
 275 static int wipedbs_traverse_open(struct smbXsrv_open_global0 *open,
 276                                  void *wipedbs_state)
 277 {
 278         struct wipedbs_state *state =
 279                 talloc_get_type_abort(wipedbs_state,
 280                 struct wipedbs_state);
 281         struct wipedbs_server_data *sd;
 282         struct wipedbs_record_marker *rec;
 283         TDB_DATA tmp;
 284         int ret = -1;
 285
 286         state->stat.open.total++;
 287
 288         sd = get_server_data(state, &open->server_id);
 289         if (sd == NULL) {
 290                 goto done;
 291         }
 292
 293         if (server_id_is_disconnected(&sd->server_id)) {
 294                 struct timeval disconnect_time;
 295                 int64_t tdiff;
 296                 bool reached;
 297
 298                 state->stat.open.disconnected++;
 299
 300                 nttime_to_timeval(&disconnect_time, open->disconnect_time);
 301                 tdiff = usec_time_diff(&state->now, &disconnect_time);
 302                 reached = (tdiff >= 1000*open->durable_timeout_msec);
 303
 304                 if (state->verbose) {
 305                         TALLOC_CTX *mem_ctx = talloc_new(talloc_tos());
 306                         d_printf("open[global: %u] disconnected at "
 307                                  "[%s] %us ago with timeout of %us "
 308                                  "-%s reached\n",
 309                                  open->open_global_id,
 310                                  nt_time_string(mem_ctx, open->disconnect_time),
 311                                  (unsigned)(tdiff/1000000),
 312                                  open->durable_timeout_msec / 1000,
 313                                  reached ? "" : " not");
 314                         talloc_free(mem_ctx);
 315                 }
 316
 317                 if (!reached) {
 318                         ret = 0;
 319                         goto done;
 320                 }
 321                 state->stat.open_timed_out++;
 322         }
 323
 324         rec = talloc_zero(sd, struct wipedbs_record_marker);
 325         if (rec == NULL) {
 326                 DEBUG(0, ("Out of memory!\n"));
 327                 goto done;
 328         }
 329
 330         tmp = dbwrap_record_get_key(open->db_rec);
 331         rec->key = tdb_data_talloc_copy(rec, tmp);
 332         tmp = dbwrap_record_get_value(open->db_rec);
 333         rec->val = tdb_data_talloc_copy(rec, tmp);
 334
 335         rec->desc = talloc_asprintf(
 336                 rec, "open[global: %u persistent: %llu volatile: %llu]",
 337                 open->open_global_id,
 338                 (long long unsigned)open->open_persistent_id,
 339                 (long long unsigned)open->open_volatile_id);
 340
 341         if ((rec->key.dptr == NULL) || (rec->val.dptr == NULL) ||
 342             (rec->desc == NULL))
 343         {
 344                 DEBUG(0, ("Out of memory!\n"));
 345                 goto done;
 346         }
 347
 348         state->open_db = dbwrap_record_get_db(open->db_rec);
 349
 350         DLIST_ADD(sd->open_records, rec);
 351         ret = 0;
 352
 353 done:
 354         return ret;
 355 }
 356
 357 static int wipedbs_traverse_nop(struct db_record *rec, void *private_data)
 358 {
 359         return 0;
 360 }
 361
 362 static int wipedbs_traverse_fill_ids(struct db_record *rec, void *wipedbs_state)
 363 {
 364         struct wipedbs_state *state = talloc_get_type_abort(
 365                 wipedbs_state, struct wipedbs_state);
 366
 367         TDB_DATA val = dbwrap_record_get_value(rec);
 368
 369         struct wipedbs_server_data *sd = talloc_get_type_abort(
 370                 *(void**)val.dptr, struct wipedbs_server_data);
 371
 372         state->server_ids[state->idx] = sd->server_id;
 373         state->idx++;
 374         return 0;
 375 }
 376
 377 static int wipedbs_traverse_set_exists(struct db_record *rec,
 378                                        void *wipedbs_state)
 379 {
 380         struct wipedbs_state *state = talloc_get_type_abort(
 381                 wipedbs_state, struct wipedbs_state);
 382
 383         TDB_DATA val = dbwrap_record_get_value(rec);
 384
 385         struct wipedbs_server_data *sd = talloc_get_type_abort(
 386                 *(void**)val.dptr, struct wipedbs_server_data);
 387
 388         /* assume a stable traverse order for rbt */
 389         SMB_ASSERT(server_id_equal(&state->server_ids[state->idx],
 390                                    &sd->server_id));
 391         sd->exists = state->server_exists[state->idx];
 392
 393         if (sd->exists) {
 394                 state->stat.server.existing++;
 395         }
 396         if (server_id_is_disconnected(&sd->server_id)) {
 397                 state->stat.server.disconnected++;
 398         }
 399
 400         state->idx++;
 401         return 0;
 402 }
 403
 404 static NTSTATUS wipedbs_check_server_exists(struct wipedbs_state *state)
 405 {
 406         NTSTATUS status;
 407         bool ok;
 408         int num_servers;
 409
 410         status = dbwrap_traverse_read(state->id2server_data,
 411                                       wipedbs_traverse_nop, NULL, &num_servers);
 412         if (!NT_STATUS_IS_OK(status)) {
 413                 DEBUG(0, ("Failed to traverse temporary database\n"));
 414                 goto done;
 415         }
 416         state->stat.server.total = num_servers;
 417
 418         state->server_ids = talloc_array(state, struct server_id, num_servers);
 419         state->server_exists = talloc_array(state, bool, num_servers);
 420         if (state->server_ids == NULL || state->server_exists == NULL) {
 421                 DEBUG(0, ("Out of memory\n"));
 422                 goto done;
 423         }
 424
 425         state->idx = 0;
 426         status = dbwrap_traverse_read(state->id2server_data,
 427                                       wipedbs_traverse_fill_ids,
 428                                       state, NULL);
 429         if (!NT_STATUS_IS_OK(status)) {
 430                 DEBUG(0, ("Failed to traverse temporary database\n"));
 431                 goto done;
 432         }
 433
 434         ok = serverids_exist(state->server_ids, num_servers, state->server_exists);
 435         if (!ok) {
 436                 DEBUG(0, ("Calling serverids_exist failed\n"));
 437                 status = NT_STATUS_UNSUCCESSFUL;
 438                 goto done;
 439         }
 440
 441         state->idx = 0;
 442         status = dbwrap_traverse_read(state->id2server_data,
 443                                       wipedbs_traverse_set_exists, state, NULL);
 444         if (!NT_STATUS_IS_OK(status)) {
 445                 DEBUG(0, ("Failed to traverse temporary database\n"));
 446                 goto done;
 447         }
 448 done:
 449         TALLOC_FREE(state->server_ids);
 450         TALLOC_FREE(state->server_exists);
 451         return status;
 452 }
 453
 454 static int wipedbs_delete_records(struct db_context *db,
 455                                   struct wipedbs_record_marker *records,
 456                                   bool dry_run, bool verbose, int *count)
 457 {
 458         struct wipedbs_record_marker *cur;
 459         struct db_record *rec;
 460         TDB_DATA val;
 461         NTSTATUS status;
 462         unsigned num=0, total=0;
 463
 464         if (db == NULL) {
 465                 return 0;
 466         }
 467
 468         for (cur = records; cur != NULL; cur = cur->next) {
 469                 total++;
 470                 rec = dbwrap_fetch_locked(db, talloc_tos(), cur->key);
 471                 if (rec == NULL) {
 472                         DEBUG(0, ("Failed to fetch record <%s> from %s",
 473                                   cur->desc, dbwrap_name(db)));
 474                         continue;
 475                 }
 476                 val = dbwrap_record_get_value(rec);
 477                 if (tdb_data_equal(val, cur->val)) {
 478                         if (dry_run) {
 479                                 status = NT_STATUS_OK;
 480                         } else {
 481                                 status = dbwrap_record_delete(rec);
 482                         }
 483                         if (NT_STATUS_IS_OK(status)) {
 484                                 num ++;
 485                         } else {
 486                                 DEBUG(0, ("Failed to delete record <%s> from %s"
 487                                           ": %s\n", cur->desc, dbwrap_name(db),
 488                                           nt_errstr(status)));
 489                         }
 490                 } else {
 491                         DEBUG(0, ("Warning: record <%s> from %s changed"
 492                                   ", skip record!\n",
 493                                   cur->desc, dbwrap_name(db)));
 494                 }
 495                 if (verbose) {
 496                         d_printf("deleting %s\n", cur->desc);
 497                 }
 498                 TALLOC_FREE(rec);
 499         }
 500
 501         if (verbose) {
 502                 d_printf("Deleted %u of %u records from %s\n",
 503                          num, total, dbwrap_name(db));
 504         }
 505
 506         if (count) {
 507                 *count += total;
 508         }
 509
 510         return total - num;
 511 }
 512
 513 static int wipedbs_traverse_server_data(struct db_record *rec,
 514                                         void *wipedbs_state)
 515 {
 516         struct wipedbs_state *state = talloc_get_type_abort(
 517                 wipedbs_state, struct wipedbs_state);
 518         bool dry_run = state->testmode;
 519         TDB_DATA val = dbwrap_record_get_value(rec);
 520         int ret;
 521         struct wipedbs_server_data *sd = talloc_get_type_abort(
 522                 *(void**)val.dptr, struct wipedbs_server_data);
 523
 524         if (state->verbose) {
 525                 d_printf("Server: '%s' %s\n", sd->server_id_str,
 526                          sd->exists ?
 527                          "exists" :
 528                          "does not exist, cleaning up...");
 529         }
 530
 531         if (sd->exists) {
 532                 return 0;
 533         }
 534
 535         ret = wipedbs_delete_records(state->session_db, sd->session_records,
 536                                      dry_run, state->verbose,
 537                                      &state->stat.session.todelete);
 538         state->stat.session.failure += ret;
 539
 540         ret = wipedbs_delete_records(state->tcon_db, sd->tcon_records,
 541                                      dry_run, state->verbose,
 542                                      &state->stat.tcon.todelete);
 543         state->stat.tcon.failure += ret;
 544
 545         ret = wipedbs_delete_records(state->open_db, sd->open_records,
 546                                      dry_run, state->verbose,
 547                                      &state->stat.open.todelete);
 548         state->stat.open.failure += ret;
 549
 550         return 0;
 551 }
 552
 553 static int net_serverid_wipedbs(struct net_context *c, int argc,
 554                                 const char **argv)
 555 {
 556         int ret = -1;
 557         NTSTATUS status;
 558         struct wipedbs_state *state = talloc_zero(talloc_tos(),
 559                                                   struct wipedbs_state);
 560
 561         if (c->display_usage) {
 562                 d_printf("%s\n%s",
 563                          _("Usage:"),
 564                          _("net serverid wipedbs [--test] [--verbose]\n"));
 565                 d_printf("%s\n%s",
 566                          _("Example:"),
 567                          _("net serverid wipedbs -v\n"));
 568                 return -1;
 569         }
 570
 571         state->now = timeval_current();
 572         state->testmode = c->opt_testmode;
 573         state->verbose = c->opt_verbose;
 574
 575         state->id2server_data = db_open_rbt(state);
 576         if (state->id2server_data == NULL) {
 577                 DEBUG(0, ("Failed to open temporary database\n"));
 578                 goto done;
 579         }
 580
 581         status = smbXsrv_session_global_traverse(wipedbs_traverse_sessions,
 582                                                  state);
 583         if (!NT_STATUS_IS_OK(status)) {
 584                 goto done;
 585         }
 586
 587         status = smbXsrv_tcon_global_traverse(wipedbs_traverse_tcon, state);
 588         if (!NT_STATUS_IS_OK(status)) {
 589                 goto done;
 590         }
 591
 592         status = smbXsrv_open_global_traverse(wipedbs_traverse_open, state);
 593         if (!NT_STATUS_IS_OK(status)) {
 594                 goto done;
 595         }
 596
 597         status = wipedbs_check_server_exists(state);
 598         if (!NT_STATUS_IS_OK(status)) {
 599                 goto done;
 600         }
 601
 602         status = dbwrap_traverse_read(state->id2server_data,
 603                                       wipedbs_traverse_server_data,
 604                                       state, NULL);
 605         if (!NT_STATUS_IS_OK(status)) {
 606                 DEBUG(0, ("Failed to traverse db: %s\n", nt_errstr(status)));
 607                 goto done;
 608         }
 609
 610         d_printf("Found %d serverids, %d alive and %d disconnected\n",
 611                  state->stat.server.total,
 612                  state->stat.server.existing,
 613                  state->stat.server.disconnected);
 614         d_printf("Found %d sessions, %d alive and %d disconnected"
 615                  ", cleaned up %d of %d entries\n",
 616                  state->stat.session.total,
 617                  state->stat.session.total - state->stat.session.todelete,
 618                  state->stat.session.disconnected,
 619                  state->stat.session.todelete - state->stat.session.failure,
 620                  state->stat.session.todelete);
 621         d_printf("Found %d tcons, %d alive and %d disconnected"
 622                  ", cleaned up %d of %d entries\n",
 623                  state->stat.tcon.total,
 624                  state->stat.tcon.total - state->stat.tcon.todelete,
 625                  state->stat.tcon.disconnected,
 626                  state->stat.tcon.todelete - state->stat.tcon.failure,
 627                  state->stat.tcon.todelete);
 628         d_printf("Found %d opens, %d alive, %d disconnected and %d timed out"
 629                  ", cleaned up %d of %d entries\n",
 630                  state->stat.open.total,
 631                  state->stat.open.total - state->stat.open.todelete
 632                  - (state->stat.open.disconnected - state->stat.open_timed_out),
 633                  state->stat.open.disconnected,
 634                  state->stat.open_timed_out,
 635                  state->stat.open.todelete - state->stat.open.failure,
 636                  state->stat.open.todelete);
 637
 638         ret = 0;
 639 done:
 640         talloc_free(state);
 641         return ret;
 642 }
 643
 644 int net_serverid(struct net_context *c, int argc, const char **argv)
 645 {
 646         struct functable func[] = {
 647                 {
 648                         "list",
 649                         net_serverid_list,
 650                         NET_TRANSPORT_LOCAL,
 651                         N_("List all entries from serverid.tdb"),
 652                         N_("net serverid list\n"
 653                            "    List all entries from serverid.tdb")
 654                 },
 655                 {
 656                         "wipe",
 657                         net_serverid_wipe,
 658                         NET_TRANSPORT_LOCAL,
 659                         N_("Wipe the serverid.tdb for the current node"),
 660                         N_("net serverid wipe\n"
 661                            "    Wipe the serverid.tdb for the current node")
 662                 },
 663                 {
 664                         "wipedbs",
 665                         net_serverid_wipedbs,
 666                         NET_TRANSPORT_LOCAL,
 667                         N_("Clean dead entries from temporary databases"),
 668                         N_("net serverid wipedbs\n"
 669                            "    Clean dead entries from temporary databases")
 670                 },
 671                 {NULL, NULL, 0, NULL, NULL}
 672         };
 673
 674         return net_run_function(c, argc, argv, "net serverid", func);
 675 }