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