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/proto.h"
  44 #include "librpc/gen_ndr/notify.h"
  45
  46 #define SMB_MAXPIDS             2048
  47 static uid_t            Ucrit_uid = 0;               /* added by OH */
  48 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  49 static int              Ucrit_MaxPid=0;                    /* added by OH */
  50 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  51
  52 static bool verbose, brief;
  53 static bool shares_only;            /* Added by RJS */
  54 static bool locks_only;            /* Added by RJS */
  55 static bool processes_only;
  56 static bool show_brl;
  57 static bool numeric_only;
  58
  59 const char *username = NULL;
  60
  61 extern bool status_profile_dump(bool be_verbose);
  62 extern bool status_profile_rates(bool be_verbose);
  63
  64 /* added by OH */
  65 static void Ucrit_addUid(uid_t uid)
  66 {
  67         Ucrit_uid = uid;
  68         Ucrit_IsActive = 1;
  69 }
  70
  71 static unsigned int Ucrit_checkUid(uid_t uid)
  72 {
  73         if ( !Ucrit_IsActive )
  74                 return 1;
  75
  76         if ( uid == Ucrit_uid )
  77                 return 1;
  78
  79         return 0;
  80 }
  81
  82 static unsigned int Ucrit_checkPid(struct server_id pid)
  83 {
  84         int i;
  85
  86         if ( !Ucrit_IsActive )
  87                 return 1;
  88
  89         for (i=0;i<Ucrit_MaxPid;i++) {
  90                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  91                         return 1;
  92         }
  93
  94         return 0;
  95 }
  96
  97 static bool Ucrit_addPid( struct server_id pid )
  98 {
  99         if ( !Ucrit_IsActive )
 100                 return True;
 101
 102         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
 103                 d_printf("ERROR: More than %d pids for user %s!\n",
 104                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
 105
 106                 return False;
 107         }
 108
 109         Ucrit_pid[Ucrit_MaxPid++] = pid;
 110
 111         return True;
 112 }
 113
 114 static void print_share_mode(const struct share_mode_entry *e,
 115                              const char *sharepath,
 116                              const char *fname,
 117                              void *dummy)
 118 {
 119         static int count;
 120
 121         if (!is_valid_share_mode_entry(e)) {
 122                 return;
 123         }
 124
 125         if (!process_exists(e->pid)) {
 126                 return;
 127         }
 128
 129         if (count==0) {
 130                 d_printf("Locked files:\n");
 131                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 132                 d_printf("--------------------------------------------------------------------------------------------------\n");
 133         }
 134         count++;
 135
 136         if (Ucrit_checkPid(e->pid)) {
 137                 d_printf("%-11s  ",procid_str_static(&e->pid));
 138                 d_printf("%-9u  ", (unsigned int)e->uid);
 139                 switch (map_share_mode_to_deny_mode(e->share_access,
 140                                                     e->private_options)) {
 141                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 142                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 143                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 144                         case DENY_READ: d_printf("DENY_READ  "); break;
 145                         case DENY_WRITE:printf("DENY_WRITE "); break;
 146                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 147                         default: {
 148                                 d_printf("unknown-please report ! "
 149                                          "e->share_access = 0x%x, "
 150                                          "e->private_options = 0x%x\n",
 151                                          (unsigned int)e->share_access,
 152                                          (unsigned int)e->private_options );
 153                                 break;
 154                         }
 155                 }
 156                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 157                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 158                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 159                         d_printf("RDWR       ");
 160                 } else if (e->access_mask & FILE_WRITE_DATA) {
 161                         d_printf("WRONLY     ");
 162                 } else {
 163                         d_printf("RDONLY     ");
 164                 }
 165
 166                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 167                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 168                         d_printf("EXCLUSIVE+BATCH ");
 169                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 170                         d_printf("EXCLUSIVE       ");
 171                 } else if (e->op_type & BATCH_OPLOCK) {
 172                         d_printf("BATCH           ");
 173                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 174                         d_printf("LEVEL_II        ");
 175                 } else {
 176                         d_printf("NONE            ");
 177                 }
 178
 179                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 180         }
 181 }
 182
 183 static void print_brl(struct file_id id,
 184                         struct server_id pid,
 185                         enum brl_type lock_type,
 186                         enum brl_flavour lock_flav,
 187                         br_off start,
 188                         br_off size,
 189                         void *private_data)
 190 {
 191         static int count;
 192         int i;
 193         static const struct {
 194                 enum brl_type lock_type;
 195                 const char *desc;
 196         } lock_types[] = {
 197                 { READ_LOCK, "R" },
 198                 { WRITE_LOCK, "W" },
 199                 { PENDING_READ_LOCK, "PR" },
 200                 { PENDING_WRITE_LOCK, "PW" },
 201                 { UNLOCK_LOCK, "U" }
 202         };
 203         const char *desc="X";
 204         const char *sharepath = "";
 205         char *fname = NULL;
 206         struct share_mode_lock *share_mode;
 207
 208         if (count==0) {
 209                 d_printf("Byte range locks:\n");
 210                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 211                 d_printf("--------------------------------------------------------------------------------\n");
 212         }
 213         count++;
 214
 215         share_mode = fetch_share_mode_unlocked(NULL, id);
 216         if (share_mode) {
 217                 bool has_stream = share_mode->data->stream_name != NULL;
 218
 219                 fname = talloc_asprintf(NULL, "%s%s%s",
 220                                         share_mode->data->base_name,
 221                                         has_stream ? ":" : "",
 222                                         has_stream ?
 223                                         share_mode->data->stream_name :
 224                                         "");
 225         } else {
 226                 fname = talloc_strdup(NULL, "");
 227                 if (fname == NULL) {
 228                         return;
 229                 }
 230         }
 231
 232         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 233                 if (lock_type == lock_types[i].lock_type) {
 234                         desc = lock_types[i].desc;
 235                 }
 236         }
 237
 238         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 239                  procid_str_static(&pid), file_id_string_tos(&id),
 240                  desc,
 241                  (double)start, (double)size,
 242                  sharepath, fname);
 243
 244         TALLOC_FREE(fname);
 245         TALLOC_FREE(share_mode);
 246 }
 247
 248 static int traverse_fn1(const struct connections_key *key,
 249                         const struct connections_data *crec,
 250                         void *state)
 251 {
 252         if (crec->cnum == -1)
 253                 return 0;
 254
 255         if (!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 (!process_exists(session->pid)
 273             || !Ucrit_checkUid(session->uid)) {
 274                 return 0;
 275         }
 276
 277         Ucrit_addPid(session->pid);
 278
 279         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 280         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 281
 282         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 283                  procid_str_static(&session->pid),
 284                  numeric_only ? uid_str : uidtoname(session->uid),
 285                  numeric_only ? gid_str : gidtoname(session->gid),
 286                  session->remote_machine, session->hostname);
 287
 288         return 0;
 289 }
 290
 291
 292 static void print_notify_recs(const char *path,
 293                               struct notify_db_entry *entries,
 294                               size_t num_entries,
 295                               time_t deleted_time, void *private_data)
 296 {
 297         size_t i;
 298         d_printf("%s\n", path);
 299
 300         if (num_entries == 0) {
 301                 d_printf("deleted %s\n", time_to_asc(deleted_time));
 302         }
 303
 304         for (i=0; i<num_entries; i++) {
 305                 struct notify_db_entry *e = &entries[i];
 306                 char *str;
 307
 308                 str = server_id_str(talloc_tos(), &e->server);
 309                 printf("%s %x %x\n", str, (unsigned)e->filter,
 310                        (unsigned)e->subdir_filter);
 311                 TALLOC_FREE(str);
 312         }
 313         printf("\n");
 314 }
 315
 316  int main(int argc, char *argv[])
 317 {
 318         int c;
 319         int profile_only = 0;
 320         bool show_processes, show_locks, show_shares;
 321         bool show_notify = false;
 322         poptContext pc;
 323         struct poptOption long_options[] = {
 324                 POPT_AUTOHELP
 325                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 326                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 327                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 328                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 329                 {"notify",      'N', POPT_ARG_NONE,     NULL, 'N', "Show notifies" },
 330                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 331                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 332                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 333                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 334                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 335                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 336                 POPT_COMMON_SAMBA
 337                 POPT_TABLEEND
 338         };
 339         TALLOC_CTX *frame = talloc_stackframe();
 340         int ret = 0;
 341         struct messaging_context *msg_ctx;
 342
 343         sec_init();
 344         load_case_tables();
 345
 346         setup_logging(argv[0], DEBUG_STDERR);
 347
 348         if (getuid() != geteuid()) {
 349                 d_printf("smbstatus should not be run setuid\n");
 350                 ret = 1;
 351                 goto done;
 352         }
 353
 354         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 355                             POPT_CONTEXT_KEEP_FIRST);
 356
 357         while ((c = poptGetNextOpt(pc)) != -1) {
 358                 switch (c) {
 359                 case 'p':
 360                         processes_only = true;
 361                         break;
 362                 case 'v':
 363                         verbose = true;
 364                         break;
 365                 case 'L':
 366                         locks_only = true;
 367                         break;
 368                 case 'S':
 369                         shares_only = true;
 370                         break;
 371                 case 'N':
 372                         show_notify = true;
 373                         break;
 374                 case 'b':
 375                         brief = true;
 376                         break;
 377                 case 'u':
 378                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 379                         break;
 380                 case 'P':
 381                 case 'R':
 382                         profile_only = c;
 383                         break;
 384                 case 'B':
 385                         show_brl = true;
 386                         break;
 387                 case 'n':
 388                         numeric_only = true;
 389                         break;
 390                 }
 391         }
 392
 393         /* setup the flags based on the possible combincations */
 394
 395         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 396         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 397         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 398
 399         if ( username )
 400                 Ucrit_addUid( nametouid(username) );
 401
 402         if (verbose) {
 403                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 404         }
 405
 406         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 407                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 408                         get_dyn_CONFIGFILE());
 409                 ret = -1;
 410                 goto done;
 411         }
 412
 413
 414         if (lp_clustering()) {
 415                 /*
 416                  * This implicitly initializes the global ctdbd
 417                  * connection, usable by the db_open() calls further
 418                  * down.
 419                  */
 420                 msg_ctx = messaging_init(NULL, event_context_init(NULL));
 421                 if (msg_ctx == NULL) {
 422                         fprintf(stderr, "messaging_init failed\n");
 423                         ret = -1;
 424                         goto done;
 425                 }
 426         }
 427
 428         if (!lp_load_global(get_dyn_CONFIGFILE())) {
 429                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 430                         get_dyn_CONFIGFILE());
 431                 ret = -1;
 432                 goto done;
 433         }
 434
 435         switch (profile_only) {
 436                 case 'P':
 437                         /* Dump profile data */
 438                         return status_profile_dump(verbose);
 439                 case 'R':
 440                         /* Continuously display rate-converted data */
 441                         return status_profile_rates(verbose);
 442                 default:
 443                         break;
 444         }
 445
 446         if ( show_processes ) {
 447                 d_printf("\nSamba version %s\n",samba_version_string());
 448                 d_printf("PID     Username      Group         Machine                        \n");
 449                 d_printf("-------------------------------------------------------------------\n");
 450
 451                 sessionid_traverse_read(traverse_sessionid, NULL);
 452
 453                 if (processes_only) {
 454                         goto done;
 455                 }
 456         }
 457
 458         if ( show_shares ) {
 459                 if (verbose) {
 460                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 461                 }
 462
 463                 if (brief) {
 464                         goto done;
 465                 }
 466
 467                 d_printf("\nService      pid     machine       Connected at\n");
 468                 d_printf("-------------------------------------------------------\n");
 469
 470                 connections_forall_read(traverse_fn1, NULL);
 471
 472                 d_printf("\n");
 473
 474                 if ( shares_only ) {
 475                         goto done;
 476                 }
 477         }
 478
 479         if ( show_locks ) {
 480                 int result;
 481                 struct db_context *db;
 482                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 483                              TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH, O_RDONLY, 0,
 484                              DBWRAP_LOCK_ORDER_1);
 485
 486                 if (!db) {
 487                         d_printf("%s not initialised\n",
 488                                  lock_path("locking.tdb"));
 489                         d_printf("This is normal if an SMB client has never "
 490                                  "connected to your server.\n");
 491                         exit(0);
 492                 } else {
 493                         TALLOC_FREE(db);
 494                 }
 495
 496                 if (!locking_init_readonly()) {
 497                         d_printf("Can't initialise locking module - exiting\n");
 498                         ret = 1;
 499                         goto done;
 500                 }
 501
 502                 result = share_mode_forall(print_share_mode, NULL);
 503
 504                 if (result == 0) {
 505                         d_printf("No locked files\n");
 506                 } else if (result < 0) {
 507                         d_printf("locked file list truncated\n");
 508                 }
 509
 510                 d_printf("\n");
 511
 512                 if (show_brl) {
 513                         brl_forall(print_brl, NULL);
 514                 }
 515
 516                 locking_end();
 517         }
 518
 519         if (show_notify) {
 520                 struct notify_context *n;
 521
 522                 n = notify_init(talloc_tos(), NULL, NULL);
 523                 if (n == NULL) {
 524                         goto done;
 525                 }
 526                 notify_walk(n, print_notify_recs, NULL);
 527                 TALLOC_FREE(n);
 528         }
 529
 530 done:
 531         TALLOC_FREE(frame);
 532         return ret;
 533 }