source3/utils/status.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3    status reporting
   4    Copyright (C) Andrew Tridgell 1994-1998
   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    Revision History:
  20
  21    12 aug 96: Erik.Devriendt@te6.siemens.be
  22    added support for shared memory implementation of share mode locking
  23
  24    21-Jul-1998: rsharpe@ns.aus.com (Richard Sharpe)
  25    Added -L (locks only) -S (shares only) flags and code
  26
  27 */
  28
  29 /*
  30  * This program reports current SMB connections
  31  */
  32
  33 #include "includes.h"
  34 #include "system/filesys.h"
  35 #include "popt_common.h"
  36 #include "dbwrap/dbwrap.h"
  37 #include "dbwrap/dbwrap_open.h"
  38 #include "../libcli/security/security.h"
  39 #include "session.h"
  40 #include "locking/proto.h"
  41 #include "messages.h"
  42 #include "librpc/gen_ndr/open_files.h"
  43 #include "smbd/smbd.h"
  44 #include "librpc/gen_ndr/notify.h"
  45 #include "lib/conn_tdb.h"
  46
  47 #define SMB_MAXPIDS             2048
  48 static uid_t            Ucrit_uid = 0;               /* added by OH */
  49 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  50 static int              Ucrit_MaxPid=0;                    /* added by OH */
  51 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  52
  53 static bool verbose, brief;
  54 static bool shares_only;            /* Added by RJS */
  55 static bool locks_only;            /* Added by RJS */
  56 static bool processes_only;
  57 static bool show_brl;
  58 static bool numeric_only;
  59 static bool do_checks = true;
  60
  61 const char *username = NULL;
  62
  63 extern bool status_profile_dump(bool be_verbose);
  64 extern bool status_profile_rates(bool be_verbose);
  65
  66 /* added by OH */
  67 static void Ucrit_addUid(uid_t uid)
  68 {
  69         Ucrit_uid = uid;
  70         Ucrit_IsActive = 1;
  71 }
  72
  73 static unsigned int Ucrit_checkUid(uid_t uid)
  74 {
  75         if ( !Ucrit_IsActive )
  76                 return 1;
  77
  78         if ( uid == Ucrit_uid )
  79                 return 1;
  80
  81         return 0;
  82 }
  83
  84 static unsigned int Ucrit_checkPid(struct server_id pid)
  85 {
  86         int i;
  87
  88         if ( !Ucrit_IsActive )
  89                 return 1;
  90
  91         for (i=0;i<Ucrit_MaxPid;i++) {
  92                 if (serverid_equal(&pid, &Ucrit_pid[i])) {
  93                         return 1;
  94                 }
  95         }
  96
  97         return 0;
  98 }
  99
 100 static bool Ucrit_addPid( struct server_id pid )
 101 {
 102         if ( !Ucrit_IsActive )
 103                 return True;
 104
 105         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
 106                 d_printf("ERROR: More than %d pids for user %s!\n",
 107                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
 108
 109                 return False;
 110         }
 111
 112         Ucrit_pid[Ucrit_MaxPid++] = pid;
 113
 114         return True;
 115 }
 116
 117 static void print_share_mode(const struct share_mode_entry *e,
 118                              const char *sharepath,
 119                              const char *fname,
 120                              void *dummy)
 121 {
 122         static int count;
 123
 124         if (do_checks && !is_valid_share_mode_entry(e)) {
 125                 return;
 126         }
 127
 128         if (count==0) {
 129                 d_printf("Locked files:\n");
 130                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 131                 d_printf("--------------------------------------------------------------------------------------------------\n");
 132         }
 133         count++;
 134
 135         if (Ucrit_checkPid(e->pid)) {
 136                 d_printf("%-11s  ",procid_str_static(&e->pid));
 137                 d_printf("%-9u  ", (unsigned int)e->uid);
 138                 switch (map_share_mode_to_deny_mode(e->share_access,
 139                                                     e->private_options)) {
 140                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 141                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 142                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 143                         case DENY_READ: d_printf("DENY_READ  "); break;
 144                         case DENY_WRITE:printf("DENY_WRITE "); break;
 145                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 146                         default: {
 147                                 d_printf("unknown-please report ! "
 148                                          "e->share_access = 0x%x, "
 149                                          "e->private_options = 0x%x\n",
 150                                          (unsigned int)e->share_access,
 151                                          (unsigned int)e->private_options );
 152                                 break;
 153                         }
 154                 }
 155                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 156                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 157                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 158                         d_printf("RDWR       ");
 159                 } else if (e->access_mask & FILE_WRITE_DATA) {
 160                         d_printf("WRONLY     ");
 161                 } else {
 162                         d_printf("RDONLY     ");
 163                 }
 164
 165                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 166                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 167                         d_printf("EXCLUSIVE+BATCH ");
 168                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 169                         d_printf("EXCLUSIVE       ");
 170                 } else if (e->op_type & BATCH_OPLOCK) {
 171                         d_printf("BATCH           ");
 172                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 173                         d_printf("LEVEL_II        ");
 174                 } else {
 175                         d_printf("NONE            ");
 176                 }
 177
 178                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 179         }
 180 }
 181
 182 static void print_brl(struct file_id id,
 183                         struct server_id pid,
 184                         enum brl_type lock_type,
 185                         enum brl_flavour lock_flav,
 186                         br_off start,
 187                         br_off size,
 188                         void *private_data)
 189 {
 190         static int count;
 191         unsigned int i;
 192         static const struct {
 193                 enum brl_type lock_type;
 194                 const char *desc;
 195         } lock_types[] = {
 196                 { READ_LOCK, "R" },
 197                 { WRITE_LOCK, "W" },
 198                 { PENDING_READ_LOCK, "PR" },
 199                 { PENDING_WRITE_LOCK, "PW" },
 200                 { UNLOCK_LOCK, "U" }
 201         };
 202         const char *desc="X";
 203         const char *sharepath = "";
 204         char *fname = NULL;
 205         struct share_mode_lock *share_mode;
 206
 207         if (count==0) {
 208                 d_printf("Byte range locks:\n");
 209                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 210                 d_printf("--------------------------------------------------------------------------------\n");
 211         }
 212         count++;
 213
 214         share_mode = fetch_share_mode_unlocked(NULL, id);
 215         if (share_mode) {
 216                 bool has_stream = share_mode->data->stream_name != NULL;
 217
 218                 fname = talloc_asprintf(NULL, "%s%s%s",
 219                                         share_mode->data->base_name,
 220                                         has_stream ? ":" : "",
 221                                         has_stream ?
 222                                         share_mode->data->stream_name :
 223                                         "");
 224         } else {
 225                 fname = talloc_strdup(NULL, "");
 226                 if (fname == NULL) {
 227                         return;
 228                 }
 229         }
 230
 231         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 232                 if (lock_type == lock_types[i].lock_type) {
 233                         desc = lock_types[i].desc;
 234                 }
 235         }
 236
 237         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 238                  procid_str_static(&pid), file_id_string_tos(&id),
 239                  desc,
 240                  (double)start, (double)size,
 241                  sharepath, fname);
 242
 243         TALLOC_FREE(fname);
 244         TALLOC_FREE(share_mode);
 245 }
 246
 247 static int traverse_connections(const struct connections_key *key,
 248                                 const struct connections_data *crec,
 249                                 void *state)
 250 {
 251         if (crec->cnum == TID_FIELD_INVALID)
 252                 return 0;
 253
 254         if (do_checks &&
 255             (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid))) {
 256                 return 0;
 257         }
 258
 259         d_printf("%-10s   %s   %-12s  %s",
 260                  crec->servicename,procid_str_static(&crec->pid),
 261                  crec->machine,
 262                  time_to_asc(crec->start));
 263
 264         return 0;
 265 }
 266
 267 static int traverse_sessionid(const char *key, struct sessionid *session,
 268                               void *private_data)
 269 {
 270         fstring uid_str, gid_str;
 271
 272         if (do_checks &&
 273             (!process_exists(session->pid) ||
 274              !Ucrit_checkUid(session->uid))) {
 275                 return 0;
 276         }
 277
 278         Ucrit_addPid(session->pid);
 279
 280         fstrcpy(uid_str, "-1");
 281
 282         if (session->uid != -1) {
 283                 if (numeric_only) {
 284                         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 285                 } else {
 286                         fstrcpy(uid_str, uidtoname(session->uid));
 287                 }
 288         }
 289
 290         fstrcpy(gid_str, "-1");
 291
 292         if (session->gid != -1) {
 293                 if (numeric_only) {
 294                         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 295                 } else {
 296                         fstrcpy(gid_str, gidtoname(session->gid));
 297                 }
 298         }
 299
 300         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 301                  procid_str_static(&session->pid),
 302                  uid_str, gid_str,
 303                  session->remote_machine, session->hostname);
 304
 305         return 0;
 306 }
 307
 308
 309 static void print_notify_recs(const char *path,
 310                               struct notify_db_entry *entries,
 311                               size_t num_entries,
 312                               time_t deleted_time, void *private_data)
 313 {
 314         size_t i;
 315         d_printf("%s\n", path);
 316
 317         if (num_entries == 0) {
 318                 d_printf("deleted %s\n", time_to_asc(deleted_time));
 319         }
 320
 321         for (i=0; i<num_entries; i++) {
 322                 struct notify_db_entry *e = &entries[i];
 323                 char *str;
 324
 325                 str = server_id_str(talloc_tos(), &e->server);
 326                 printf("%s %x %x\n", str, (unsigned)e->filter,
 327                        (unsigned)e->subdir_filter);
 328                 TALLOC_FREE(str);
 329         }
 330         printf("\n");
 331 }
 332
 333  int main(int argc, char *argv[])
 334 {
 335         int c;
 336         int profile_only = 0;
 337         bool show_processes, show_locks, show_shares;
 338         bool show_notify = false;
 339         poptContext pc;
 340         struct poptOption long_options[] = {
 341                 POPT_AUTOHELP
 342                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 343                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 344                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 345                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 346                 {"notify",      'N', POPT_ARG_NONE,     NULL, 'N', "Show notifies" },
 347                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 348                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 349                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 350                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 351                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 352                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 353                 {"fast",        'f', POPT_ARG_NONE,     NULL, 'f', "Skip checks if processes still exist"},
 354                 POPT_COMMON_SAMBA
 355                 POPT_TABLEEND
 356         };
 357         TALLOC_CTX *frame = talloc_stackframe();
 358         int ret = 0;
 359         struct messaging_context *msg_ctx;
 360
 361         sec_init();
 362         load_case_tables();
 363
 364         setup_logging(argv[0], DEBUG_STDERR);
 365
 366         if (getuid() != geteuid()) {
 367                 d_printf("smbstatus should not be run setuid\n");
 368                 ret = 1;
 369                 goto done;
 370         }
 371
 372         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 373                             POPT_CONTEXT_KEEP_FIRST);
 374
 375         while ((c = poptGetNextOpt(pc)) != -1) {
 376                 switch (c) {
 377                 case 'p':
 378                         processes_only = true;
 379                         break;
 380                 case 'v':
 381                         verbose = true;
 382                         break;
 383                 case 'L':
 384                         locks_only = true;
 385                         break;
 386                 case 'S':
 387                         shares_only = true;
 388                         break;
 389                 case 'N':
 390                         show_notify = true;
 391                         break;
 392                 case 'b':
 393                         brief = true;
 394                         break;
 395                 case 'u':
 396                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 397                         break;
 398                 case 'P':
 399                 case 'R':
 400                         profile_only = c;
 401                         break;
 402                 case 'B':
 403                         show_brl = true;
 404                         break;
 405                 case 'n':
 406                         numeric_only = true;
 407                         break;
 408                 case 'f':
 409                         do_checks = false;
 410                         break;
 411                 }
 412         }
 413
 414         /* setup the flags based on the possible combincations */
 415
 416         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 417         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 418         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 419
 420         if ( username )
 421                 Ucrit_addUid( nametouid(username) );
 422
 423         if (verbose) {
 424                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 425         }
 426
 427         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 428                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 429                         get_dyn_CONFIGFILE());
 430                 ret = -1;
 431                 goto done;
 432         }
 433
 434
 435         if (lp_clustering()) {
 436                 /*
 437                  * This implicitly initializes the global ctdbd
 438                  * connection, usable by the db_open() calls further
 439                  * down.
 440                  */
 441                 msg_ctx = messaging_init(NULL, event_context_init(NULL));
 442                 if (msg_ctx == NULL) {
 443                         fprintf(stderr, "messaging_init failed\n");
 444                         ret = -1;
 445                         goto done;
 446                 }
 447         }
 448
 449         if (!lp_load_global(get_dyn_CONFIGFILE())) {
 450                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 451                         get_dyn_CONFIGFILE());
 452                 ret = -1;
 453                 goto done;
 454         }
 455
 456         switch (profile_only) {
 457                 case 'P':
 458                         /* Dump profile data */
 459                         return status_profile_dump(verbose);
 460                 case 'R':
 461                         /* Continuously display rate-converted data */
 462                         return status_profile_rates(verbose);
 463                 default:
 464                         break;
 465         }
 466
 467         if ( show_processes ) {
 468                 d_printf("\nSamba version %s\n",samba_version_string());
 469                 d_printf("PID     Username      Group         Machine                        \n");
 470                 d_printf("-------------------------------------------------------------------\n");
 471
 472                 sessionid_traverse_read(traverse_sessionid, NULL);
 473
 474                 if (processes_only) {
 475                         goto done;
 476                 }
 477         }
 478
 479         if ( show_shares ) {
 480                 if (verbose) {
 481                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 482                 }
 483
 484                 if (brief) {
 485                         goto done;
 486                 }
 487
 488                 d_printf("\nService      pid     machine       Connected at\n");
 489                 d_printf("-------------------------------------------------------\n");
 490
 491                 connections_forall_read(traverse_connections, NULL);
 492
 493                 d_printf("\n");
 494
 495                 if ( shares_only ) {
 496                         goto done;
 497                 }
 498         }
 499
 500         if ( show_locks ) {
 501                 int result;
 502                 struct db_context *db;
 503                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 504                              TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH, O_RDONLY, 0,
 505                              DBWRAP_LOCK_ORDER_1);
 506
 507                 if (!db) {
 508                         d_printf("%s not initialised\n",
 509                                  lock_path("locking.tdb"));
 510                         d_printf("This is normal if an SMB client has never "
 511                                  "connected to your server.\n");
 512                         exit(0);
 513                 } else {
 514                         TALLOC_FREE(db);
 515                 }
 516
 517                 if (!locking_init_readonly()) {
 518                         d_printf("Can't initialise locking module - exiting\n");
 519                         ret = 1;
 520                         goto done;
 521                 }
 522
 523                 result = share_mode_forall(print_share_mode, NULL);
 524
 525                 if (result == 0) {
 526                         d_printf("No locked files\n");
 527                 } else if (result < 0) {
 528                         d_printf("locked file list truncated\n");
 529                 }
 530
 531                 d_printf("\n");
 532
 533                 if (show_brl) {
 534                         brl_forall(print_brl, NULL);
 535                 }
 536
 537                 locking_end();
 538         }
 539
 540         if (show_notify) {
 541                 struct notify_context *n;
 542
 543                 n = notify_init(talloc_tos(), NULL, NULL);
 544                 if (n == NULL) {
 545                         goto done;
 546                 }
 547                 notify_walk(n, print_notify_recs, NULL);
 548                 TALLOC_FREE(n);
 549         }
 550
 551 done:
 552         TALLOC_FREE(frame);
 553         return ret;
 554 }