source3/utils/smbcontrol.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Send messages to other Samba daemons
   5
   6    Copyright (C) Tim Potter 2003
   7    Copyright (C) Andrew Tridgell 1994-1998
   8    Copyright (C) Martin Pool 2001-2002
   9    Copyright (C) Simo Sorce 2002
  10    Copyright (C) James Peach 2006
  11
  12    This program is free software; you can redistribute it and/or modify
  13    it under the terms of the GNU General Public License as published by
  14    the Free Software Foundation; either version 3 of the License, or
  15    (at your option) any later version.
  16
  17    This program is distributed in the hope that it will be useful,
  18    but WITHOUT ANY WARRANTY; without even the implied warranty of
  19    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20    GNU General Public License for more details.
  21
  22    You should have received a copy of the GNU General Public License
  23    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  24 */
  25
  26 #include "includes.h"
  27 #include "system/filesys.h"
  28 #include "popt_common.h"
  29 #include "librpc/gen_ndr/spoolss.h"
  30 #include "nt_printing.h"
  31 #include "printing/notify.h"
  32 #include "libsmb/nmblib.h"
  33 #include "messages.h"
  34 #include "util_tdb.h"
  35 #include "../lib/util/pidfile.h"
  36 #include "serverid.h"
  37
  38 #if HAVE_LIBUNWIND_H
  39 #include <libunwind.h>
  40 #endif
  41
  42 #if HAVE_LIBUNWIND_PTRACE_H
  43 #include <libunwind-ptrace.h>
  44 #endif
  45
  46 #if HAVE_SYS_PTRACE_H
  47 #include <sys/ptrace.h>
  48 #endif
  49
  50 /* Default timeout value when waiting for replies (in seconds) */
  51
  52 #define DEFAULT_TIMEOUT 10
  53
  54 static int timeout = DEFAULT_TIMEOUT;
  55 static int num_replies;         /* Used by message callback fns */
  56
  57 /* Send a message to a destination pid.  Zero means broadcast smbd. */
  58
  59 static bool send_message(struct messaging_context *msg_ctx,
  60                          struct server_id pid, int msg_type,
  61                          const void *buf, int len)
  62 {
  63         bool ret;
  64         int n_sent = 0;
  65
  66         if (procid_to_pid(&pid) != 0)
  67                 return NT_STATUS_IS_OK(
  68                         messaging_send_buf(msg_ctx, pid, msg_type,
  69                                            (const uint8 *)buf, len));
  70
  71         ret = message_send_all(msg_ctx, msg_type, buf, len, &n_sent);
  72         DEBUG(10,("smbcontrol/send_message: broadcast message to "
  73                   "%d processes\n", n_sent));
  74
  75         return ret;
  76 }
  77
  78 static void smbcontrol_timeout(struct tevent_context *event_ctx,
  79                                struct tevent_timer *te,
  80                                struct timeval now,
  81                                void *private_data)
  82 {
  83         bool *timed_out = (bool *)private_data;
  84         TALLOC_FREE(te);
  85         *timed_out = True;
  86 }
  87
  88 /* Wait for one or more reply messages */
  89
  90 static void wait_replies(struct tevent_context *ev_ctx,
  91                          struct messaging_context *msg_ctx,
  92                          bool multiple_replies)
  93 {
  94         struct tevent_timer *te;
  95         bool timed_out = False;
  96
  97         te = tevent_add_timer(ev_ctx, NULL,
  98                               timeval_current_ofs(timeout, 0),
  99                               smbcontrol_timeout, (void *)&timed_out);
 100         if (te == NULL) {
 101                 DEBUG(0, ("tevent_add_timer failed\n"));
 102                 return;
 103         }
 104
 105         while (!timed_out) {
 106                 int ret;
 107                 if (num_replies > 0 && !multiple_replies)
 108                         break;
 109                 ret = tevent_loop_once(ev_ctx);
 110                 if (ret != 0) {
 111                         break;
 112                 }
 113         }
 114 }
 115
 116 /* Message handler callback that displays the PID and a string on stdout */
 117
 118 static void print_pid_string_cb(struct messaging_context *msg,
 119                                 void *private_data,
 120                                 uint32_t msg_type,
 121                                 struct server_id pid,
 122                                 DATA_BLOB *data)
 123 {
 124         char *pidstr;
 125
 126         pidstr = server_id_str(talloc_tos(), &pid);
 127         printf("PID %s: %.*s", pidstr, (int)data->length,
 128                (const char *)data->data);
 129         TALLOC_FREE(pidstr);
 130         num_replies++;
 131 }
 132
 133 /* Message handler callback that displays a string on stdout */
 134
 135 static void print_string_cb(struct messaging_context *msg,
 136                             void *private_data,
 137                             uint32_t msg_type,
 138                             struct server_id pid,
 139                             DATA_BLOB *data)
 140 {
 141         printf("%*s", (int)data->length, (const char *)data->data);
 142         num_replies++;
 143 }
 144
 145 /* Send no message.  Useful for testing. */
 146
 147 static bool do_noop(struct tevent_context *ev_ctx,
 148                     struct messaging_context *msg_ctx,
 149                     const struct server_id pid,
 150                     const int argc, const char **argv)
 151 {
 152         if (argc != 1) {
 153                 fprintf(stderr, "Usage: smbcontrol <dest> noop\n");
 154                 return False;
 155         }
 156
 157         /* Move along, nothing to see here */
 158
 159         return True;
 160 }
 161
 162 /* Send a debug string */
 163
 164 static bool do_debug(struct tevent_context *ev_ctx,
 165                      struct messaging_context *msg_ctx,
 166                      const struct server_id pid,
 167                      const int argc, const char **argv)
 168 {
 169         if (argc != 2) {
 170                 fprintf(stderr, "Usage: smbcontrol <dest> debug "
 171                         "<debug-string>\n");
 172                 return False;
 173         }
 174
 175         return send_message(msg_ctx, pid, MSG_DEBUG, argv[1],
 176                             strlen(argv[1]) + 1);
 177 }
 178
 179
 180 static bool do_idmap(struct tevent_context *ev,
 181                      struct messaging_context *msg_ctx,
 182                      const struct server_id pid,
 183                      const int argc, const char **argv)
 184 {
 185         static const char* usage = "Usage: "
 186                 "smbcontrol <dest> idmap <cmd> [arg]\n"
 187                 "\tcmd:"
 188                 "\tdelete \"UID <uid>\"|\"GID <gid>\"|<sid>\n"
 189                 "\t\tkill \"UID <uid>\"|\"GID <gid>\"|<sid>\n";
 190         const char* arg = NULL;
 191         int arglen = 0;
 192         int msg_type;
 193
 194         switch (argc) {
 195         case 2:
 196                 break;
 197         case 3:
 198                 arg = argv[2];
 199                 arglen = strlen(arg) + 1;
 200                 break;
 201         default:
 202                 fprintf(stderr, "%s", usage);
 203                 return false;
 204         }
 205
 206         if (strcmp(argv[1], "delete") == 0) {
 207                 msg_type = ID_CACHE_DELETE;
 208         }
 209         else if (strcmp(argv[1], "kill") == 0) {
 210                 msg_type = ID_CACHE_KILL;
 211         }
 212         else if (strcmp(argv[1], "help") == 0) {
 213                 fprintf(stdout, "%s", usage);
 214                 return true;
 215         }
 216         else {
 217                 fprintf(stderr, "%s", usage);
 218                 return false;
 219         }
 220
 221         return send_message(msg_ctx, pid, msg_type, arg, arglen);
 222 }
 223
 224
 225 #if defined(HAVE_LIBUNWIND_PTRACE) && defined(HAVE_LINUX_PTRACE)
 226
 227 /* Return the name of a process given it's PID. This will only work on Linux,
 228  * but that's probably moot since this whole stack tracing implementatino is
 229  * Linux-specific anyway.
 230  */
 231 static const char * procname(pid_t pid, char * buf, size_t bufsz)
 232 {
 233         char path[64];
 234         FILE * fp;
 235
 236         snprintf(path, sizeof(path), "/proc/%llu/cmdline",
 237                 (unsigned long long)pid);
 238         if ((fp = fopen(path, "r")) == NULL) {
 239                 return NULL;
 240         }
 241
 242         fgets(buf, bufsz, fp);
 243
 244         fclose(fp);
 245         return buf;
 246 }
 247
 248 static void print_stack_trace(pid_t pid, int * count)
 249 {
 250         void *              pinfo = NULL;
 251         unw_addr_space_t    aspace = NULL;
 252         unw_cursor_t        cursor;
 253         unw_word_t          ip, sp;
 254
 255         char                nbuf[256];
 256         unw_word_t          off;
 257
 258         int ret;
 259
 260         if (ptrace(PTRACE_ATTACH, pid, NULL, NULL) < 0) {
 261                 fprintf(stderr,
 262                         "Failed to attach to process %llu: %s\n",
 263                         (unsigned long long)pid, strerror(errno));
 264                 return;
 265         }
 266
 267         /* Wait until the attach is complete. */
 268         waitpid(pid, NULL, 0);
 269
 270         if (((pinfo = _UPT_create(pid)) == NULL) ||
 271             ((aspace = unw_create_addr_space(&_UPT_accessors, 0)) == NULL)) {
 272                 /* Probably out of memory. */
 273                 fprintf(stderr,
 274                         "Unable to initialize stack unwind for process %llu\n",
 275                         (unsigned long long)pid);
 276                 goto cleanup;
 277         }
 278
 279         if ((ret = unw_init_remote(&cursor, aspace, pinfo))) {
 280                 fprintf(stderr,
 281                         "Unable to unwind stack for process %llu: %s\n",
 282                         (unsigned long long)pid, unw_strerror(ret));
 283                 goto cleanup;
 284         }
 285
 286         if (*count > 0) {
 287                 printf("\n");
 288         }
 289
 290         if (procname(pid, nbuf, sizeof(nbuf))) {
 291                 printf("Stack trace for process %llu (%s):\n",
 292                         (unsigned long long)pid, nbuf);
 293         } else {
 294                 printf("Stack trace for process %llu:\n",
 295                         (unsigned long long)pid);
 296         }
 297
 298         while (unw_step(&cursor) > 0) {
 299                 ip = sp = off = 0;
 300                 unw_get_reg(&cursor, UNW_REG_IP, &ip);
 301                 unw_get_reg(&cursor, UNW_REG_SP, &sp);
 302
 303                 ret = unw_get_proc_name(&cursor, nbuf, sizeof(nbuf), &off);
 304                 if (ret != 0 && ret != -UNW_ENOMEM) {
 305                         snprintf(nbuf, sizeof(nbuf), "<unknown symbol>");
 306                 }
 307                 printf("    %s + %#llx [ip=%#llx] [sp=%#llx]\n",
 308                         nbuf, (long long)off, (long long)ip,
 309                         (long long)sp);
 310         }
 311
 312         (*count)++;
 313
 314 cleanup:
 315         if (aspace) {
 316                 unw_destroy_addr_space(aspace);
 317         }
 318
 319         if (pinfo) {
 320                 _UPT_destroy(pinfo);
 321         }
 322
 323         ptrace(PTRACE_DETACH, pid, NULL, NULL);
 324 }
 325
 326 static int stack_trace_server(const struct server_id *id,
 327                               uint32_t msg_flags,
 328                               void *priv)
 329 {
 330         if (id->vnn == get_my_vnn()) {
 331                 print_stack_trace(procid_to_pid(id), (int *)priv);
 332         }
 333         return 0;
 334 }
 335
 336 static bool do_daemon_stack_trace(struct tevent_context *ev_ctx,
 337                                   struct messaging_context *msg_ctx,
 338                                   const struct server_id pid,
 339                                   const int argc, const char **argv)
 340 {
 341         pid_t   dest;
 342         int     count = 0;
 343
 344         if (argc != 1) {
 345                 fprintf(stderr, "Usage: smbcontrol <dest> stacktrace\n");
 346                 return False;
 347         }
 348
 349         dest = procid_to_pid(&pid);
 350
 351         if (dest != 0) {
 352                 /* It would be nice to be able to make sure that this PID is
 353                  * the PID of a smbd/winbind/nmbd process, not some random PID
 354                  * the user liked the look of. It doesn't seem like it's worth
 355                  * the effort at the moment, however.
 356                  */
 357                 print_stack_trace(dest, &count);
 358         } else {
 359                 serverid_traverse_read(stack_trace_server, &count);
 360         }
 361
 362         return True;
 363 }
 364
 365 #else /* defined(HAVE_LIBUNWIND_PTRACE) && defined(HAVE_LINUX_PTRACE) */
 366
 367 static bool do_daemon_stack_trace(struct tevent_context *ev_ctx,
 368                                   struct messaging_context *msg_ctx,
 369                                   const struct server_id pid,
 370                                   const int argc, const char **argv)
 371 {
 372         fprintf(stderr,
 373                 "Daemon stack tracing is not supported on this platform\n");
 374         return False;
 375 }
 376
 377 #endif /* defined(HAVE_LIBUNWIND_PTRACE) && defined(HAVE_LINUX_PTRACE) */
 378
 379 /* Inject a fault (fatal signal) into a running smbd */
 380
 381 static bool do_inject_fault(struct tevent_context *ev_ctx,
 382                             struct messaging_context *msg_ctx,
 383                             const struct server_id pid,
 384                             const int argc, const char **argv)
 385 {
 386         if (argc != 2) {
 387                 fprintf(stderr, "Usage: smbcontrol <dest> inject "
 388                         "<bus|hup|term|internal|segv>\n");
 389                 return False;
 390         }
 391
 392 #ifndef DEVELOPER
 393         fprintf(stderr, "Fault injection is only available in "
 394                 "developer builds\n");
 395         return False;
 396 #else /* DEVELOPER */
 397         {
 398                 int sig = 0;
 399
 400                 if (strcmp(argv[1], "bus") == 0) {
 401                         sig = SIGBUS;
 402                 } else if (strcmp(argv[1], "hup") == 0) {
 403                         sig = SIGHUP;
 404                 } else if (strcmp(argv[1], "term") == 0) {
 405                         sig = SIGTERM;
 406                 } else if (strcmp(argv[1], "segv") == 0) {
 407                         sig = SIGSEGV;
 408                 } else if (strcmp(argv[1], "internal") == 0) {
 409                         /* Force an internal error, ie. an unclean exit. */
 410                         sig = -1;
 411                 } else {
 412                         fprintf(stderr, "Unknown signal name '%s'\n", argv[1]);
 413                         return False;
 414                 }
 415
 416                 return send_message(msg_ctx, pid, MSG_SMB_INJECT_FAULT,
 417                                     &sig, sizeof(int));
 418         }
 419 #endif /* DEVELOPER */
 420 }
 421
 422 /* Force a browser election */
 423
 424 static bool do_election(struct tevent_context *ev_ctx,
 425                         struct messaging_context *msg_ctx,
 426                         const struct server_id pid,
 427                         const int argc, const char **argv)
 428 {
 429         if (argc != 1) {
 430                 fprintf(stderr, "Usage: smbcontrol <dest> force-election\n");
 431                 return False;
 432         }
 433
 434         return send_message(msg_ctx, pid, MSG_FORCE_ELECTION, NULL, 0);
 435 }
 436
 437 /* Ping a samba daemon process */
 438
 439 static void pong_cb(struct messaging_context *msg,
 440                     void *private_data,
 441                     uint32_t msg_type,
 442                     struct server_id pid,
 443                     DATA_BLOB *data)
 444 {
 445         char *src_string = server_id_str(NULL, &pid);
 446         printf("PONG from pid %s\n", src_string);
 447         TALLOC_FREE(src_string);
 448         num_replies++;
 449 }
 450
 451 static bool do_ping(struct tevent_context *ev_ctx,
 452                     struct messaging_context *msg_ctx,
 453                     const struct server_id pid,
 454                     const int argc, const char **argv)
 455 {
 456         if (argc != 1) {
 457                 fprintf(stderr, "Usage: smbcontrol <dest> ping\n");
 458                 return False;
 459         }
 460
 461         /* Send a message and register our interest in a reply */
 462
 463         if (!send_message(msg_ctx, pid, MSG_PING, NULL, 0))
 464                 return False;
 465
 466         messaging_register(msg_ctx, NULL, MSG_PONG, pong_cb);
 467
 468         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
 469
 470         /* No replies were received within the timeout period */
 471
 472         if (num_replies == 0)
 473                 printf("No replies received\n");
 474
 475         messaging_deregister(msg_ctx, MSG_PONG, NULL);
 476
 477         return num_replies;
 478 }
 479
 480 /* Set profiling options */
 481
 482 static bool do_profile(struct tevent_context *ev_ctx,
 483                        struct messaging_context *msg_ctx,
 484                        const struct server_id pid,
 485                        const int argc, const char **argv)
 486 {
 487         int v;
 488
 489         if (argc != 2) {
 490                 fprintf(stderr, "Usage: smbcontrol <dest> profile "
 491                         "<off|count|on|flush>\n");
 492                 return False;
 493         }
 494
 495         if (strcmp(argv[1], "off") == 0) {
 496                 v = 0;
 497         } else if (strcmp(argv[1], "count") == 0) {
 498                 v = 1;
 499         } else if (strcmp(argv[1], "on") == 0) {
 500                 v = 2;
 501         } else if (strcmp(argv[1], "flush") == 0) {
 502                 v = 3;
 503         } else {
 504                 fprintf(stderr, "Unknown profile command '%s'\n", argv[1]);
 505                 return False;
 506         }
 507
 508         return send_message(msg_ctx, pid, MSG_PROFILE, &v, sizeof(int));
 509 }
 510
 511 /* Return the profiling level */
 512
 513 static void profilelevel_cb(struct messaging_context *msg_ctx,
 514                             void *private_data,
 515                             uint32_t msg_type,
 516                             struct server_id pid,
 517                             DATA_BLOB *data)
 518 {
 519         int level;
 520         const char *s;
 521
 522         num_replies++;
 523
 524         if (data->length != sizeof(int)) {
 525                 fprintf(stderr, "invalid message length %ld returned\n",
 526                         (unsigned long)data->length);
 527                 return;
 528         }
 529
 530         memcpy(&level, data->data, sizeof(int));
 531
 532         switch (level) {
 533         case 0:
 534                 s = "not enabled";
 535                 break;
 536         case 1:
 537                 s = "off";
 538                 break;
 539         case 3:
 540                 s = "count only";
 541                 break;
 542         case 7:
 543                 s = "count and time";
 544                 break;
 545         default:
 546                 s = "BOGUS";
 547                 break;
 548         }
 549
 550         printf("Profiling %s on pid %u\n",s,(unsigned int)procid_to_pid(&pid));
 551 }
 552
 553 static void profilelevel_rqst(struct messaging_context *msg_ctx,
 554                               void *private_data,
 555                               uint32_t msg_type,
 556                               struct server_id pid,
 557                               DATA_BLOB *data)
 558 {
 559         int v = 0;
 560
 561         /* Send back a dummy reply */
 562
 563         send_message(msg_ctx, pid, MSG_PROFILELEVEL, &v, sizeof(int));
 564 }
 565
 566 static bool do_profilelevel(struct tevent_context *ev_ctx,
 567                             struct messaging_context *msg_ctx,
 568                             const struct server_id pid,
 569                             const int argc, const char **argv)
 570 {
 571         if (argc != 1) {
 572                 fprintf(stderr, "Usage: smbcontrol <dest> profilelevel\n");
 573                 return False;
 574         }
 575
 576         /* Send a message and register our interest in a reply */
 577
 578         if (!send_message(msg_ctx, pid, MSG_REQ_PROFILELEVEL, NULL, 0))
 579                 return False;
 580
 581         messaging_register(msg_ctx, NULL, MSG_PROFILELEVEL, profilelevel_cb);
 582         messaging_register(msg_ctx, NULL, MSG_REQ_PROFILELEVEL,
 583                            profilelevel_rqst);
 584
 585         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
 586
 587         /* No replies were received within the timeout period */
 588
 589         if (num_replies == 0)
 590                 printf("No replies received\n");
 591
 592         messaging_deregister(msg_ctx, MSG_PROFILE, NULL);
 593
 594         return num_replies;
 595 }
 596
 597 /* Display debug level settings */
 598
 599 static bool do_debuglevel(struct tevent_context *ev_ctx,
 600                           struct messaging_context *msg_ctx,
 601                           const struct server_id pid,
 602                           const int argc, const char **argv)
 603 {
 604         if (argc != 1) {
 605                 fprintf(stderr, "Usage: smbcontrol <dest> debuglevel\n");
 606                 return False;
 607         }
 608
 609         /* Send a message and register our interest in a reply */
 610
 611         if (!send_message(msg_ctx, pid, MSG_REQ_DEBUGLEVEL, NULL, 0))
 612                 return False;
 613
 614         messaging_register(msg_ctx, NULL, MSG_DEBUGLEVEL, print_pid_string_cb);
 615
 616         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
 617
 618         /* No replies were received within the timeout period */
 619
 620         if (num_replies == 0)
 621                 printf("No replies received\n");
 622
 623         messaging_deregister(msg_ctx, MSG_DEBUGLEVEL, NULL);
 624
 625         return num_replies;
 626 }
 627
 628 /* Send a print notify message */
 629
 630 static bool do_printnotify(struct tevent_context *ev_ctx,
 631                            struct messaging_context *msg_ctx,
 632                            const struct server_id pid,
 633                            const int argc, const char **argv)
 634 {
 635         const char *cmd;
 636
 637         /* Check for subcommand */
 638
 639         if (argc == 1) {
 640                 fprintf(stderr, "Must specify subcommand:\n");
 641                 fprintf(stderr, "\tqueuepause <printername>\n");
 642                 fprintf(stderr, "\tqueueresume <printername>\n");
 643                 fprintf(stderr, "\tjobpause <printername> <unix jobid>\n");
 644                 fprintf(stderr, "\tjobresume <printername> <unix jobid>\n");
 645                 fprintf(stderr, "\tjobdelete <printername> <unix jobid>\n");
 646                 fprintf(stderr, "\tprinter <printername> <comment|port|"
 647                         "driver> <value>\n");
 648
 649                 return False;
 650         }
 651
 652         cmd = argv[1];
 653
 654         if (strcmp(cmd, "queuepause") == 0) {
 655
 656                 if (argc != 3) {
 657                         fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
 658                                 " queuepause <printername>\n");
 659                         return False;
 660                 }
 661
 662                 notify_printer_status_byname(ev_ctx, msg_ctx, argv[2],
 663                                              PRINTER_STATUS_PAUSED);
 664
 665                 goto send;
 666
 667         } else if (strcmp(cmd, "queueresume") == 0) {
 668
 669                 if (argc != 3) {
 670                         fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
 671                                 " queuereume <printername>\n");
 672                         return False;
 673                 }
 674
 675                 notify_printer_status_byname(ev_ctx, msg_ctx, argv[2],
 676                                              PRINTER_STATUS_OK);
 677
 678                 goto send;
 679
 680         } else if (strcmp(cmd, "jobpause") == 0) {
 681                 int jobid;
 682
 683                 if (argc != 4) {
 684                         fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
 685                                 " jobpause <printername> <unix-jobid>\n");
 686                         return False;
 687                 }
 688
 689                 jobid = atoi(argv[3]);
 690
 691                 notify_job_status_byname(
 692                         ev_ctx, msg_ctx,
 693                         argv[2], jobid, JOB_STATUS_PAUSED,
 694                         SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
 695
 696                 goto send;
 697
 698         } else if (strcmp(cmd, "jobresume") == 0) {
 699                 int jobid;
 700
 701                 if (argc != 4) {
 702                         fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
 703                                 " jobpause <printername> <unix-jobid>\n");
 704                         return False;
 705                 }
 706
 707                 jobid = atoi(argv[3]);
 708
 709                 notify_job_status_byname(
 710                         ev_ctx, msg_ctx,
 711                         argv[2], jobid, JOB_STATUS_QUEUED,
 712                         SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
 713
 714                 goto send;
 715
 716         } else if (strcmp(cmd, "jobdelete") == 0) {
 717                 int jobid;
 718
 719                 if (argc != 4) {
 720                         fprintf(stderr, "Usage: smbcontrol <dest> printnotify"
 721                                 " jobpause <printername> <unix-jobid>\n");
 722                         return False;
 723                 }
 724
 725                 jobid = atoi(argv[3]);
 726
 727                 notify_job_status_byname(
 728                         ev_ctx, msg_ctx,
 729                         argv[2], jobid, JOB_STATUS_DELETING,
 730                         SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
 731
 732                 notify_job_status_byname(
 733                         ev_ctx, msg_ctx,
 734                         argv[2], jobid, JOB_STATUS_DELETING|
 735                         JOB_STATUS_DELETED,
 736                         SPOOLSS_NOTIFY_MSG_UNIX_JOBID);
 737
 738                 goto send;
 739
 740         } else if (strcmp(cmd, "printer") == 0) {
 741                 uint32 attribute;
 742
 743                 if (argc != 5) {
 744                         fprintf(stderr, "Usage: smbcontrol <dest> printnotify "
 745                                 "printer <printername> <comment|port|driver> "
 746                                 "<value>\n");
 747                         return False;
 748                 }
 749
 750                 if (strcmp(argv[3], "comment") == 0) {
 751                         attribute = PRINTER_NOTIFY_FIELD_COMMENT;
 752                 } else if (strcmp(argv[3], "port") == 0) {
 753                         attribute = PRINTER_NOTIFY_FIELD_PORT_NAME;
 754                 } else if (strcmp(argv[3], "driver") == 0) {
 755                         attribute = PRINTER_NOTIFY_FIELD_DRIVER_NAME;
 756                 } else {
 757                         fprintf(stderr, "Invalid printer command '%s'\n",
 758                                 argv[3]);
 759                         return False;
 760                 }
 761
 762                 notify_printer_byname(ev_ctx, msg_ctx, argv[2], attribute,
 763                                       discard_const_p(char, argv[4]));
 764
 765                 goto send;
 766         }
 767
 768         fprintf(stderr, "Invalid subcommand '%s'\n", cmd);
 769         return False;
 770
 771 send:
 772         print_notify_send_messages(msg_ctx, 0);
 773         return True;
 774 }
 775
 776 /* Close a share */
 777
 778 static bool do_closeshare(struct tevent_context *ev_ctx,
 779                           struct messaging_context *msg_ctx,
 780                           const struct server_id pid,
 781                           const int argc, const char **argv)
 782 {
 783         if (argc != 2) {
 784                 fprintf(stderr, "Usage: smbcontrol <dest> close-share "
 785                         "<sharename>\n");
 786                 return False;
 787         }
 788
 789         return send_message(msg_ctx, pid, MSG_SMB_FORCE_TDIS, argv[1],
 790                             strlen(argv[1]) + 1);
 791 }
 792
 793 /* Kill a client by IP address */
 794 static bool do_kill_client_by_ip(struct tevent_context *ev_ctx,
 795                                  struct messaging_context *msg_ctx,
 796                                  const struct server_id pid,
 797                                  const int argc, const char **argv)
 798 {
 799         if (argc != 2) {
 800                 fprintf(stderr, "Usage: smbcontrol <dest> kill-client-ip "
 801                         "<IP address>\n");
 802                 return false;
 803         }
 804
 805         if (!is_ipaddress_v4(argv[1]) && !is_ipaddress_v6(argv[1])) {
 806                 fprintf(stderr, "%s is not a valid IP address!\n", argv[1]);
 807                 return false;
 808         }
 809
 810         return send_message(msg_ctx, pid, MSG_SMB_KILL_CLIENT_IP,
 811                             argv[1], strlen(argv[1]) + 1);
 812 }
 813
 814 /* Tell winbindd an IP got dropped */
 815
 816 static bool do_ip_dropped(struct tevent_context *ev_ctx,
 817                           struct messaging_context *msg_ctx,
 818                           const struct server_id pid,
 819                           const int argc, const char **argv)
 820 {
 821         if (argc != 2) {
 822                 fprintf(stderr, "Usage: smbcontrol <dest> ip-dropped "
 823                         "<ip-address>\n");
 824                 return False;
 825         }
 826
 827         return send_message(msg_ctx, pid, MSG_WINBIND_IP_DROPPED, argv[1],
 828                             strlen(argv[1]) + 1);
 829 }
 830
 831 /* force a blocking lock retry */
 832
 833 static bool do_lockretry(struct tevent_context *ev_ctx,
 834                          struct messaging_context *msg_ctx,
 835                          const struct server_id pid,
 836                          const int argc, const char **argv)
 837 {
 838         if (argc != 1) {
 839                 fprintf(stderr, "Usage: smbcontrol <dest> lockretry\n");
 840                 return False;
 841         }
 842
 843         return send_message(msg_ctx, pid, MSG_SMB_UNLOCK, NULL, 0);
 844 }
 845
 846 /* force a validation of all brl entries, including re-sends. */
 847
 848 static bool do_brl_revalidate(struct tevent_context *ev_ctx,
 849                               struct messaging_context *msg_ctx,
 850                               const struct server_id pid,
 851                               const int argc, const char **argv)
 852 {
 853         if (argc != 1) {
 854                 fprintf(stderr, "Usage: smbcontrol <dest> brl-revalidate\n");
 855                 return False;
 856         }
 857
 858         return send_message(msg_ctx, pid, MSG_SMB_BRL_VALIDATE, NULL, 0);
 859 }
 860
 861 /* Display talloc pool usage */
 862
 863 static bool do_poolusage(struct tevent_context *ev_ctx,
 864                          struct messaging_context *msg_ctx,
 865                          const struct server_id pid,
 866                          const int argc, const char **argv)
 867 {
 868         if (argc != 1) {
 869                 fprintf(stderr, "Usage: smbcontrol <dest> pool-usage\n");
 870                 return False;
 871         }
 872
 873         messaging_register(msg_ctx, NULL, MSG_POOL_USAGE, print_string_cb);
 874
 875         /* Send a message and register our interest in a reply */
 876
 877         if (!send_message(msg_ctx, pid, MSG_REQ_POOL_USAGE, NULL, 0))
 878                 return False;
 879
 880         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
 881
 882         /* No replies were received within the timeout period */
 883
 884         if (num_replies == 0)
 885                 printf("No replies received\n");
 886
 887         messaging_deregister(msg_ctx, MSG_POOL_USAGE, NULL);
 888
 889         return num_replies;
 890 }
 891
 892 /* Perform a dmalloc mark */
 893
 894 static bool do_dmalloc_mark(struct tevent_context *ev_ctx,
 895                             struct messaging_context *msg_ctx,
 896                             const struct server_id pid,
 897                             const int argc, const char **argv)
 898 {
 899         if (argc != 1) {
 900                 fprintf(stderr, "Usage: smbcontrol <dest> dmalloc-mark\n");
 901                 return False;
 902         }
 903
 904         return send_message(msg_ctx, pid, MSG_REQ_DMALLOC_MARK, NULL, 0);
 905 }
 906
 907 /* Perform a dmalloc changed */
 908
 909 static bool do_dmalloc_changed(struct tevent_context *ev_ctx,
 910                                struct messaging_context *msg_ctx,
 911                                const struct server_id pid,
 912                                const int argc, const char **argv)
 913 {
 914         if (argc != 1) {
 915                 fprintf(stderr, "Usage: smbcontrol <dest> "
 916                         "dmalloc-log-changed\n");
 917                 return False;
 918         }
 919
 920         return send_message(msg_ctx, pid, MSG_REQ_DMALLOC_LOG_CHANGED,
 921                             NULL, 0);
 922 }
 923
 924 static void print_uint32_cb(struct messaging_context *msg, void *private_data,
 925                             uint32_t msg_type, struct server_id pid,
 926                             DATA_BLOB *data)
 927 {
 928         uint32_t num_children;
 929
 930         if (data->length != sizeof(uint32_t)) {
 931                 printf("Invalid response: %d bytes long\n",
 932                        (int)data->length);
 933                 goto done;
 934         }
 935         num_children = IVAL(data->data, 0);
 936         printf("%u children\n", (unsigned)num_children);
 937 done:
 938         num_replies++;
 939 }
 940
 941 static bool do_num_children(struct tevent_context *ev_ctx,
 942                             struct messaging_context *msg_ctx,
 943                             const struct server_id pid,
 944                             const int argc, const char **argv)
 945 {
 946         if (argc != 1) {
 947                 fprintf(stderr, "Usage: smbcontrol <dest> num-children\n");
 948                 return False;
 949         }
 950
 951         messaging_register(msg_ctx, NULL, MSG_SMB_NUM_CHILDREN,
 952                            print_uint32_cb);
 953
 954         /* Send a message and register our interest in a reply */
 955
 956         if (!send_message(msg_ctx, pid, MSG_SMB_TELL_NUM_CHILDREN, NULL, 0))
 957                 return false;
 958
 959         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
 960
 961         /* No replies were received within the timeout period */
 962
 963         if (num_replies == 0)
 964                 printf("No replies received\n");
 965
 966         messaging_deregister(msg_ctx, MSG_SMB_NUM_CHILDREN, NULL);
 967
 968         return num_replies;
 969 }
 970
 971 /* Shutdown a server process */
 972
 973 static bool do_shutdown(struct tevent_context *ev_ctx,
 974                         struct messaging_context *msg_ctx,
 975                         const struct server_id pid,
 976                         const int argc, const char **argv)
 977 {
 978         if (argc != 1) {
 979                 fprintf(stderr, "Usage: smbcontrol <dest> shutdown\n");
 980                 return False;
 981         }
 982
 983         return send_message(msg_ctx, pid, MSG_SHUTDOWN, NULL, 0);
 984 }
 985
 986 /* Notify a driver upgrade */
 987
 988 static bool do_drvupgrade(struct tevent_context *ev_ctx,
 989                           struct messaging_context *msg_ctx,
 990                           const struct server_id pid,
 991                           const int argc, const char **argv)
 992 {
 993         if (argc != 2) {
 994                 fprintf(stderr, "Usage: smbcontrol <dest> drvupgrade "
 995                         "<driver-name>\n");
 996                 return False;
 997         }
 998
 999         return send_message(msg_ctx, pid, MSG_PRINTER_DRVUPGRADE, argv[1],
1000                             strlen(argv[1]) + 1);
1001 }
1002
1003 static bool do_winbind_online(struct tevent_context *ev_ctx,
1004                               struct messaging_context *msg_ctx,
1005                               const struct server_id pid,
1006                               const int argc, const char **argv)
1007 {
1008         TDB_CONTEXT *tdb;
1009
1010         if (argc != 1) {
1011                 fprintf(stderr, "Usage: smbcontrol winbindd online\n");
1012                 return False;
1013         }
1014
1015         /* Remove the entry in the winbindd_cache tdb to tell a later
1016            starting winbindd that we're online. */
1017
1018         tdb = tdb_open_log(state_path("winbindd_cache.tdb"), 0, TDB_DEFAULT, O_RDWR, 0600);
1019         if (!tdb) {
1020                 fprintf(stderr, "Cannot open the tdb %s for writing.\n",
1021                         state_path("winbindd_cache.tdb"));
1022                 return False;
1023         }
1024
1025         tdb_delete_bystring(tdb, "WINBINDD_OFFLINE");
1026         tdb_close(tdb);
1027
1028         return send_message(msg_ctx, pid, MSG_WINBIND_ONLINE, NULL, 0);
1029 }
1030
1031 static bool do_winbind_offline(struct tevent_context *ev_ctx,
1032                                struct messaging_context *msg_ctx,
1033                                const struct server_id pid,
1034                                const int argc, const char **argv)
1035 {
1036         TDB_CONTEXT *tdb;
1037         bool ret = False;
1038         int retry = 0;
1039
1040         if (argc != 1) {
1041                 fprintf(stderr, "Usage: smbcontrol winbindd offline\n");
1042                 return False;
1043         }
1044
1045         /* Create an entry in the winbindd_cache tdb to tell a later
1046            starting winbindd that we're offline. We may actually create
1047            it here... */
1048
1049         tdb = tdb_open_log(state_path("winbindd_cache.tdb"),
1050                                 WINBINDD_CACHE_TDB_DEFAULT_HASH_SIZE,
1051                                 TDB_DEFAULT|TDB_INCOMPATIBLE_HASH /* TDB_CLEAR_IF_FIRST */,
1052                                 O_RDWR|O_CREAT, 0600);
1053
1054         if (!tdb) {
1055                 fprintf(stderr, "Cannot open the tdb %s for writing.\n",
1056                         state_path("winbindd_cache.tdb"));
1057                 return False;
1058         }
1059
1060         /* There's a potential race condition that if a child
1061            winbindd detects a domain is online at the same time
1062            we're trying to tell it to go offline that it might
1063            delete the record we add between us adding it and
1064            sending the message. Minimize this by retrying up to
1065            5 times. */
1066
1067         for (retry = 0; retry < 5; retry++) {
1068                 TDB_DATA d;
1069                 uint8 buf[4];
1070
1071                 ZERO_STRUCT(d);
1072
1073                 SIVAL(buf, 0, time(NULL));
1074                 d.dptr = buf;
1075                 d.dsize = 4;
1076
1077                 tdb_store_bystring(tdb, "WINBINDD_OFFLINE", d, TDB_INSERT);
1078
1079                 ret = send_message(msg_ctx, pid, MSG_WINBIND_OFFLINE,
1080                                    NULL, 0);
1081
1082                 /* Check that the entry "WINBINDD_OFFLINE" still exists. */
1083                 d = tdb_fetch_bystring( tdb, "WINBINDD_OFFLINE" );
1084
1085                 if (!d.dptr || d.dsize != 4) {
1086                         SAFE_FREE(d.dptr);
1087                         DEBUG(10,("do_winbind_offline: offline state not set - retrying.\n"));
1088                 } else {
1089                         SAFE_FREE(d.dptr);
1090                         break;
1091                 }
1092         }
1093
1094         tdb_close(tdb);
1095         return ret;
1096 }
1097
1098 static bool do_winbind_onlinestatus(struct tevent_context *ev_ctx,
1099                                     struct messaging_context *msg_ctx,
1100                                     const struct server_id pid,
1101                                     const int argc, const char **argv)
1102 {
1103         struct server_id myid;
1104
1105         myid = messaging_server_id(msg_ctx);
1106
1107         if (argc != 1) {
1108                 fprintf(stderr, "Usage: smbcontrol winbindd onlinestatus\n");
1109                 return False;
1110         }
1111
1112         messaging_register(msg_ctx, NULL, MSG_WINBIND_ONLINESTATUS,
1113                            print_pid_string_cb);
1114
1115         if (!send_message(msg_ctx, pid, MSG_WINBIND_ONLINESTATUS, &myid,
1116                           sizeof(myid)))
1117                 return False;
1118
1119         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
1120
1121         /* No replies were received within the timeout period */
1122
1123         if (num_replies == 0)
1124                 printf("No replies received\n");
1125
1126         messaging_deregister(msg_ctx, MSG_WINBIND_ONLINESTATUS, NULL);
1127
1128         return num_replies;
1129 }
1130
1131 static bool do_dump_event_list(struct tevent_context *ev_ctx,
1132                                struct messaging_context *msg_ctx,
1133                                const struct server_id pid,
1134                                const int argc, const char **argv)
1135 {
1136         if (argc != 1) {
1137                 fprintf(stderr, "Usage: smbcontrol <dest> dump-event-list\n");
1138                 return False;
1139         }
1140
1141         return send_message(msg_ctx, pid, MSG_DUMP_EVENT_LIST, NULL, 0);
1142 }
1143
1144 static bool do_winbind_dump_domain_list(struct tevent_context *ev_ctx,
1145                                         struct messaging_context *msg_ctx,
1146                                         const struct server_id pid,
1147                                         const int argc, const char **argv)
1148 {
1149         const char *domain = NULL;
1150         int domain_len = 0;
1151         struct server_id myid;
1152         uint8_t *buf = NULL;
1153         int buf_len = 0;
1154
1155         myid = messaging_server_id(msg_ctx);
1156
1157         if (argc < 1 || argc > 2) {
1158                 fprintf(stderr, "Usage: smbcontrol <dest> dump-domain-list "
1159                         "<domain>\n");
1160                 return false;
1161         }
1162
1163         if (argc == 2) {
1164                 domain = argv[1];
1165                 domain_len = strlen(argv[1]) + 1;
1166         }
1167
1168         messaging_register(msg_ctx, NULL, MSG_WINBIND_DUMP_DOMAIN_LIST,
1169                            print_pid_string_cb);
1170
1171         buf_len = sizeof(myid)+domain_len;
1172         buf = SMB_MALLOC_ARRAY(uint8_t, buf_len);
1173         if (!buf) {
1174                 return false;
1175         }
1176
1177         memcpy(buf, &myid, sizeof(myid));
1178         memcpy(&buf[sizeof(myid)], domain, domain_len);
1179
1180         if (!send_message(msg_ctx, pid, MSG_WINBIND_DUMP_DOMAIN_LIST,
1181                           buf, buf_len))
1182         {
1183                 SAFE_FREE(buf);
1184                 return false;
1185         }
1186
1187         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
1188
1189         /* No replies were received within the timeout period */
1190
1191         SAFE_FREE(buf);
1192         if (num_replies == 0) {
1193                 printf("No replies received\n");
1194         }
1195
1196         messaging_deregister(msg_ctx, MSG_WINBIND_DUMP_DOMAIN_LIST, NULL);
1197
1198         return num_replies;
1199 }
1200
1201 static void winbind_validate_cache_cb(struct messaging_context *msg,
1202                                       void *private_data,
1203                                       uint32_t msg_type,
1204                                       struct server_id pid,
1205                                       DATA_BLOB *data)
1206 {
1207         char *src_string = server_id_str(NULL, &pid);
1208         printf("Winbindd cache is %svalid. (answer from pid %s)\n",
1209                (*(data->data) == 0 ? "" : "NOT "), src_string);
1210         TALLOC_FREE(src_string);
1211         num_replies++;
1212 }
1213
1214 static bool do_winbind_validate_cache(struct tevent_context *ev_ctx,
1215                                       struct messaging_context *msg_ctx,
1216                                       const struct server_id pid,
1217                                       const int argc, const char **argv)
1218 {
1219         struct server_id myid;
1220
1221         myid = messaging_server_id(msg_ctx);
1222
1223         if (argc != 1) {
1224                 fprintf(stderr, "Usage: smbcontrol winbindd validate-cache\n");
1225                 return False;
1226         }
1227
1228         messaging_register(msg_ctx, NULL, MSG_WINBIND_VALIDATE_CACHE,
1229                            winbind_validate_cache_cb);
1230
1231         if (!send_message(msg_ctx, pid, MSG_WINBIND_VALIDATE_CACHE, &myid,
1232                           sizeof(myid))) {
1233                 return False;
1234         }
1235
1236         wait_replies(ev_ctx, msg_ctx, procid_to_pid(&pid) == 0);
1237
1238         if (num_replies == 0) {
1239                 printf("No replies received\n");
1240         }
1241
1242         messaging_deregister(msg_ctx, MSG_WINBIND_VALIDATE_CACHE, NULL);
1243
1244         return num_replies;
1245 }
1246
1247 static bool do_reload_config(struct tevent_context *ev_ctx,
1248                              struct messaging_context *msg_ctx,
1249                              const struct server_id pid,
1250                              const int argc, const char **argv)
1251 {
1252         if (argc != 1) {
1253                 fprintf(stderr, "Usage: smbcontrol <dest> reload-config\n");
1254                 return False;
1255         }
1256
1257         return send_message(msg_ctx, pid, MSG_SMB_CONF_UPDATED, NULL, 0);
1258 }
1259
1260 static bool do_reload_printers(struct tevent_context *ev_ctx,
1261                                struct messaging_context *msg_ctx,
1262                                const struct server_id pid,
1263                                const int argc, const char **argv)
1264 {
1265         if (argc != 1) {
1266                 fprintf(stderr, "Usage: smbcontrol <dest> reload-printers\n");
1267                 return False;
1268         }
1269
1270         return send_message(msg_ctx, pid, MSG_PRINTER_PCAP, NULL, 0);
1271 }
1272
1273 static void my_make_nmb_name( struct nmb_name *n, const char *name, int type)
1274 {
1275         fstring unix_name;
1276         memset( (char *)n, '\0', sizeof(struct nmb_name) );
1277         fstrcpy(unix_name, name);
1278         (void)strupper_m(unix_name);
1279         push_ascii(n->name, unix_name, sizeof(n->name), STR_TERMINATE);
1280         n->name_type = (unsigned int)type & 0xFF;
1281         push_ascii(n->scope,  lp_netbios_scope(), 64, STR_TERMINATE);
1282 }
1283
1284 static bool do_nodestatus(struct tevent_context *ev_ctx,
1285                           struct messaging_context *msg_ctx,
1286                           const struct server_id pid,
1287                           const int argc, const char **argv)
1288 {
1289         struct packet_struct p;
1290
1291         if (argc != 2) {
1292                 fprintf(stderr, "Usage: smbcontrol nmbd nodestatus <ip>\n");
1293                 return False;
1294         }
1295
1296         ZERO_STRUCT(p);
1297
1298         p.ip = interpret_addr2(argv[1]);
1299         p.port = 137;
1300         p.packet_type = NMB_PACKET;
1301
1302         p.packet.nmb.header.name_trn_id = 10;
1303         p.packet.nmb.header.opcode = 0;
1304         p.packet.nmb.header.response = False;
1305         p.packet.nmb.header.nm_flags.bcast = False;
1306         p.packet.nmb.header.nm_flags.recursion_available = False;
1307         p.packet.nmb.header.nm_flags.recursion_desired = False;
1308         p.packet.nmb.header.nm_flags.trunc = False;
1309         p.packet.nmb.header.nm_flags.authoritative = False;
1310         p.packet.nmb.header.rcode = 0;
1311         p.packet.nmb.header.qdcount = 1;
1312         p.packet.nmb.header.ancount = 0;
1313         p.packet.nmb.header.nscount = 0;
1314         p.packet.nmb.header.arcount = 0;
1315         my_make_nmb_name(&p.packet.nmb.question.question_name, "*", 0x00);
1316         p.packet.nmb.question.question_type = 0x21;
1317         p.packet.nmb.question.question_class = 0x1;
1318
1319         return send_message(msg_ctx, pid, MSG_SEND_PACKET, &p, sizeof(p));
1320 }
1321
1322 static bool do_notify_cleanup(struct tevent_context *ev_ctx,
1323                               struct messaging_context *msg_ctx,
1324                               const struct server_id pid,
1325                               const int argc, const char **argv)
1326 {
1327         if (argc != 1) {
1328                 fprintf(stderr, "Usage: smbcontrol smbd notify-cleanup\n");
1329                 return false;
1330         }
1331         return send_message(msg_ctx, pid, MSG_SMB_NOTIFY_CLEANUP, NULL, 0);
1332 }
1333
1334 /* A list of message type supported */
1335
1336 static const struct {
1337         const char *name;       /* Option name */
1338         bool (*fn)(struct tevent_context *ev_ctx,
1339                    struct messaging_context *msg_ctx,
1340                    const struct server_id pid,
1341                    const int argc, const char **argv);
1342         const char *help;       /* Short help text */
1343 } msg_types[] = {
1344         { "debug", do_debug, "Set debuglevel"  },
1345         { "idmap", do_idmap, "Manipulate idmap cache" },
1346         { "force-election", do_election,
1347           "Force a browse election" },
1348         { "ping", do_ping, "Elicit a response" },
1349         { "profile", do_profile, "" },
1350         { "inject", do_inject_fault,
1351             "Inject a fatal signal into a running smbd"},
1352         { "stacktrace", do_daemon_stack_trace,
1353             "Display a stack trace of a daemon" },
1354         { "profilelevel", do_profilelevel, "" },
1355         { "debuglevel", do_debuglevel, "Display current debuglevels" },
1356         { "printnotify", do_printnotify, "Send a print notify message" },
1357         { "close-share", do_closeshare, "Forcibly disconnect a share" },
1358         { "kill-client-ip", do_kill_client_by_ip,
1359           "Forcibly disconnect a client with a specific IP address" },
1360         { "ip-dropped", do_ip_dropped, "Tell winbind that an IP got dropped" },
1361         { "lockretry", do_lockretry, "Force a blocking lock retry" },
1362         { "brl-revalidate", do_brl_revalidate, "Revalidate all brl entries" },
1363         { "pool-usage", do_poolusage, "Display talloc memory usage" },
1364         { "dmalloc-mark", do_dmalloc_mark, "" },
1365         { "dmalloc-log-changed", do_dmalloc_changed, "" },
1366         { "shutdown", do_shutdown, "Shut down daemon" },
1367         { "drvupgrade", do_drvupgrade, "Notify a printer driver has changed" },
1368         { "reload-config", do_reload_config, "Force smbd or winbindd to reload config file"},
1369         { "reload-printers", do_reload_printers, "Force smbd to reload printers"},
1370         { "nodestatus", do_nodestatus, "Ask nmbd to do a node status request"},
1371         { "online", do_winbind_online, "Ask winbind to go into online state"},
1372         { "offline", do_winbind_offline, "Ask winbind to go into offline state"},
1373         { "onlinestatus", do_winbind_onlinestatus, "Request winbind online status"},
1374         { "dump-event-list", do_dump_event_list, "Dump event list"},
1375         { "validate-cache" , do_winbind_validate_cache,
1376           "Validate winbind's credential cache" },
1377         { "dump-domain-list", do_winbind_dump_domain_list, "Dump winbind domain list"},
1378         { "notify-cleanup", do_notify_cleanup },
1379         { "num-children", do_num_children,
1380           "Print number of smbd child processes" },
1381         { "noop", do_noop, "Do nothing" },
1382         { NULL }
1383 };
1384
1385 /* Display usage information */
1386
1387 static void usage(poptContext pc)
1388 {
1389         int i;
1390
1391         poptPrintHelp(pc, stderr, 0);
1392
1393         fprintf(stderr, "\n");
1394         fprintf(stderr, "<destination> is one of \"nmbd\", \"smbd\", \"winbindd\" or a "
1395                 "process ID\n");
1396
1397         fprintf(stderr, "\n");
1398         fprintf(stderr, "<message-type> is one of:\n");
1399
1400         for (i = 0; msg_types[i].name; i++)
1401             fprintf(stderr, "\t%-30s%s\n", msg_types[i].name,
1402                     msg_types[i].help);
1403
1404         fprintf(stderr, "\n");
1405
1406         exit(1);
1407 }
1408
1409 /* Return the pid number for a string destination */
1410
1411 static struct server_id parse_dest(struct messaging_context *msg,
1412                                    const char *dest)
1413 {
1414         struct server_id result = {-1};
1415         pid_t pid;
1416
1417         /* Zero is a special return value for broadcast to all processes */
1418
1419         if (strequal(dest, "all")) {
1420                 return interpret_pid(MSG_BROADCAST_PID_STR);
1421         }
1422
1423         /* Try self - useful for testing */
1424
1425         if (strequal(dest, "self")) {
1426                 return messaging_server_id(msg);
1427         }
1428
1429         /* Fix winbind typo. */
1430         if (strequal(dest, "winbind")) {
1431                 dest = "winbindd";
1432         }
1433
1434         /* Check for numeric pid number */
1435         result = interpret_pid(dest);
1436
1437         /* Zero isn't valid if not "all". */
1438         if (result.pid && procid_valid(&result)) {
1439                 return result;
1440         }
1441
1442         /* Look up other destinations in pidfile directory */
1443
1444         if ((pid = pidfile_pid(lp_pid_directory(), dest)) != 0) {
1445                 return pid_to_procid(pid);
1446         }
1447
1448         fprintf(stderr,"Can't find pid for destination '%s'\n", dest);
1449
1450         return result;
1451 }
1452
1453 /* Execute smbcontrol command */
1454
1455 static bool do_command(struct tevent_context *ev_ctx,
1456                        struct messaging_context *msg_ctx,
1457                        int argc, const char **argv)
1458 {
1459         const char *dest = argv[0], *command = argv[1];
1460         struct server_id pid;
1461         int i;
1462
1463         /* Check destination */
1464
1465         pid = parse_dest(msg_ctx, dest);
1466         if (!procid_valid(&pid)) {
1467                 return False;
1468         }
1469
1470         /* Check command */
1471
1472         for (i = 0; msg_types[i].name; i++) {
1473                 if (strequal(command, msg_types[i].name))
1474                         return msg_types[i].fn(ev_ctx, msg_ctx, pid,
1475                                                argc - 1, argv + 1);
1476         }
1477
1478         fprintf(stderr, "smbcontrol: unknown command '%s'\n", command);
1479
1480         return False;
1481 }
1482
1483 static void smbcontrol_help(poptContext pc,
1484                     enum poptCallbackReason preason,
1485                     struct poptOption * poption,
1486                     const char * parg,
1487                     void * pdata)
1488 {
1489         if (poption->shortName != '?') {
1490                 poptPrintUsage(pc, stdout, 0);
1491         } else {
1492                 usage(pc);
1493         }
1494
1495         exit(0);
1496 }
1497
1498 struct poptOption help_options[] = {
1499         { NULL, '\0', POPT_ARG_CALLBACK, (void *)&smbcontrol_help, '\0',
1500           NULL, NULL },
1501         { "help", '?', 0, NULL, '?', "Show this help message", NULL },
1502         { "usage", '\0', 0, NULL, 'u', "Display brief usage message", NULL },
1503         { NULL }
1504 } ;
1505
1506 /* Main program */
1507
1508 int main(int argc, const char **argv)
1509 {
1510         poptContext pc;
1511         int opt;
1512         struct tevent_context *evt_ctx;
1513         struct messaging_context *msg_ctx;
1514
1515         static struct poptOption long_options[] = {
1516                 /* POPT_AUTOHELP */
1517                 { NULL, '\0', POPT_ARG_INCLUDE_TABLE, help_options,
1518                                         0, "Help options:", NULL },
1519                 { "timeout", 't', POPT_ARG_INT, &timeout, 't',
1520                   "Set timeout value in seconds", "TIMEOUT" },
1521
1522                 POPT_COMMON_SAMBA
1523                 POPT_TABLEEND
1524         };
1525         TALLOC_CTX *frame = talloc_stackframe();
1526         int ret = 0;
1527
1528         load_case_tables();
1529
1530         setup_logging(argv[0], DEBUG_STDOUT);
1531
1532         /* Parse command line arguments using popt */
1533
1534         pc = poptGetContext(
1535                 "smbcontrol", argc, (const char **)argv, long_options, 0);
1536
1537         poptSetOtherOptionHelp(pc, "[OPTION...] <destination> <message-type> "
1538                                "<parameters>");
1539
1540         if (argc == 1)
1541                 usage(pc);
1542
1543         while ((opt = poptGetNextOpt(pc)) != -1) {
1544                 switch(opt) {
1545                 case 't':       /* --timeout */
1546                         break;
1547                 default:
1548                         fprintf(stderr, "Invalid option\n");
1549                         poptPrintHelp(pc, stderr, 0);
1550                         break;
1551                 }
1552         }
1553
1554         /* We should now have the remaining command line arguments in
1555            argv.  The argc parameter should have been decremented to the
1556            correct value in the above switch statement. */
1557
1558         argv = (const char **)poptGetArgs(pc);
1559         argc = 0;
1560         if (argv != NULL) {
1561                 while (argv[argc] != NULL) {
1562                         argc++;
1563                 }
1564         }
1565
1566         if (argc <= 1)
1567                 usage(pc);
1568
1569         lp_load_global(get_dyn_CONFIGFILE());
1570
1571         /* Need to invert sense of return code -- samba
1572          * routines mostly return True==1 for success, but
1573          * shell needs 0. */
1574
1575         if (!(evt_ctx = samba_tevent_context_init(NULL)) ||
1576             !(msg_ctx = messaging_init(NULL, evt_ctx))) {
1577                 fprintf(stderr, "could not init messaging context\n");
1578                 TALLOC_FREE(frame);
1579                 exit(1);
1580         }
1581
1582         ret = !do_command(evt_ctx, msg_ctx, argc, argv);
1583         TALLOC_FREE(msg_ctx);
1584         TALLOC_FREE(frame);
1585         return ret;
1586 }