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
  44 #define SMB_MAXPIDS             2048
  45 static uid_t            Ucrit_uid = 0;               /* added by OH */
  46 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  47 static int              Ucrit_MaxPid=0;                    /* added by OH */
  48 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  49
  50 static bool verbose, brief;
  51 static bool shares_only;            /* Added by RJS */
  52 static bool locks_only;            /* Added by RJS */
  53 static bool processes_only;
  54 static bool show_brl;
  55 static bool numeric_only;
  56
  57 const char *username = NULL;
  58
  59 extern bool status_profile_dump(bool be_verbose);
  60 extern bool status_profile_rates(bool be_verbose);
  61
  62 /* added by OH */
  63 static void Ucrit_addUid(uid_t uid)
  64 {
  65         Ucrit_uid = uid;
  66         Ucrit_IsActive = 1;
  67 }
  68
  69 static unsigned int Ucrit_checkUid(uid_t uid)
  70 {
  71         if ( !Ucrit_IsActive )
  72                 return 1;
  73
  74         if ( uid == Ucrit_uid )
  75                 return 1;
  76
  77         return 0;
  78 }
  79
  80 static unsigned int Ucrit_checkPid(struct server_id pid)
  81 {
  82         int i;
  83
  84         if ( !Ucrit_IsActive )
  85                 return 1;
  86
  87         for (i=0;i<Ucrit_MaxPid;i++) {
  88                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  89                         return 1;
  90         }
  91
  92         return 0;
  93 }
  94
  95 static bool Ucrit_addPid( struct server_id pid )
  96 {
  97         if ( !Ucrit_IsActive )
  98                 return True;
  99
 100         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
 101                 d_printf("ERROR: More than %d pids for user %s!\n",
 102                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
 103
 104                 return False;
 105         }
 106
 107         Ucrit_pid[Ucrit_MaxPid++] = pid;
 108
 109         return True;
 110 }
 111
 112 static void print_share_mode(const struct share_mode_entry *e,
 113                              const char *sharepath,
 114                              const char *fname,
 115                              void *dummy)
 116 {
 117         static int count;
 118
 119         if (!is_valid_share_mode_entry(e)) {
 120                 return;
 121         }
 122
 123         if (!process_exists(e->pid)) {
 124                 return;
 125         }
 126
 127         if (count==0) {
 128                 d_printf("Locked files:\n");
 129                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 130                 d_printf("--------------------------------------------------------------------------------------------------\n");
 131         }
 132         count++;
 133
 134         if (Ucrit_checkPid(e->pid)) {
 135                 d_printf("%-11s  ",procid_str_static(&e->pid));
 136                 d_printf("%-9u  ", (unsigned int)e->uid);
 137                 switch (map_share_mode_to_deny_mode(e->share_access,
 138                                                     e->private_options)) {
 139                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 140                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 141                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 142                         case DENY_READ: d_printf("DENY_READ  "); break;
 143                         case DENY_WRITE:printf("DENY_WRITE "); break;
 144                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 145                         default: {
 146                                 d_printf("unknown-please report ! "
 147                                          "e->share_access = 0x%x, "
 148                                          "e->private_options = 0x%x\n",
 149                                          (unsigned int)e->share_access,
 150                                          (unsigned int)e->private_options );
 151                                 break;
 152                         }
 153                 }
 154                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 155                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 156                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 157                         d_printf("RDWR       ");
 158                 } else if (e->access_mask & FILE_WRITE_DATA) {
 159                         d_printf("WRONLY     ");
 160                 } else {
 161                         d_printf("RDONLY     ");
 162                 }
 163
 164                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 165                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 166                         d_printf("EXCLUSIVE+BATCH ");
 167                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 168                         d_printf("EXCLUSIVE       ");
 169                 } else if (e->op_type & BATCH_OPLOCK) {
 170                         d_printf("BATCH           ");
 171                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 172                         d_printf("LEVEL_II        ");
 173                 } else {
 174                         d_printf("NONE            ");
 175                 }
 176
 177                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 178         }
 179 }
 180
 181 static void print_brl(struct file_id id,
 182                         struct server_id pid,
 183                         enum brl_type lock_type,
 184                         enum brl_flavour lock_flav,
 185                         br_off start,
 186                         br_off size,
 187                         void *private_data)
 188 {
 189         static int count;
 190         int i;
 191         static const struct {
 192                 enum brl_type lock_type;
 193                 const char *desc;
 194         } lock_types[] = {
 195                 { READ_LOCK, "R" },
 196                 { WRITE_LOCK, "W" },
 197                 { PENDING_READ_LOCK, "PR" },
 198                 { PENDING_WRITE_LOCK, "PW" },
 199                 { UNLOCK_LOCK, "U" }
 200         };
 201         const char *desc="X";
 202         const char *sharepath = "";
 203         char *fname = NULL;
 204         struct share_mode_lock *share_mode;
 205
 206         if (count==0) {
 207                 d_printf("Byte range locks:\n");
 208                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 209                 d_printf("--------------------------------------------------------------------------------\n");
 210         }
 211         count++;
 212
 213         share_mode = fetch_share_mode_unlocked(NULL, id);
 214         if (share_mode) {
 215                 bool has_stream = share_mode->stream_name != NULL;
 216
 217                 fname = talloc_asprintf(NULL, "%s%s%s", share_mode->base_name,
 218                                         has_stream ? ":" : "",
 219                                         has_stream ? share_mode->stream_name :
 220                                         "");
 221         } else {
 222                 fname = talloc_strdup(NULL, "");
 223                 if (fname == NULL) {
 224                         return;
 225                 }
 226         }
 227
 228         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 229                 if (lock_type == lock_types[i].lock_type) {
 230                         desc = lock_types[i].desc;
 231                 }
 232         }
 233
 234         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 235                  procid_str_static(&pid), file_id_string_tos(&id),
 236                  desc,
 237                  (double)start, (double)size,
 238                  sharepath, fname);
 239
 240         TALLOC_FREE(fname);
 241         TALLOC_FREE(share_mode);
 242 }
 243
 244 static int traverse_fn1(const struct connections_key *key,
 245                         const struct connections_data *crec,
 246                         void *state)
 247 {
 248         if (crec->cnum == -1)
 249                 return 0;
 250
 251         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 252                 return 0;
 253         }
 254
 255         d_printf("%-10s   %s   %-12s  %s",
 256                  crec->servicename,procid_str_static(&crec->pid),
 257                  crec->machine,
 258                  time_to_asc(crec->start));
 259
 260         return 0;
 261 }
 262
 263 static int traverse_sessionid(const char *key, struct sessionid *session,
 264                               void *private_data)
 265 {
 266         fstring uid_str, gid_str;
 267
 268         if (!process_exists(session->pid)
 269             || !Ucrit_checkUid(session->uid)) {
 270                 return 0;
 271         }
 272
 273         Ucrit_addPid(session->pid);
 274
 275         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 276         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 277
 278         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 279                  procid_str_static(&session->pid),
 280                  numeric_only ? uid_str : uidtoname(session->uid),
 281                  numeric_only ? gid_str : gidtoname(session->gid),
 282                  session->remote_machine, session->hostname);
 283
 284         return 0;
 285 }
 286
 287
 288
 289
 290  int main(int argc, char *argv[])
 291 {
 292         int c;
 293         int profile_only = 0;
 294         bool show_processes, show_locks, show_shares;
 295         poptContext pc;
 296         struct poptOption long_options[] = {
 297                 POPT_AUTOHELP
 298                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 299                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 300                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 301                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 302                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 303                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 304                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 305                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 306                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 307                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 308                 POPT_COMMON_SAMBA
 309                 POPT_TABLEEND
 310         };
 311         TALLOC_CTX *frame = talloc_stackframe();
 312         int ret = 0;
 313         struct messaging_context *msg_ctx;
 314
 315         sec_init();
 316         load_case_tables();
 317
 318         setup_logging(argv[0], DEBUG_STDERR);
 319
 320         if (getuid() != geteuid()) {
 321                 d_printf("smbstatus should not be run setuid\n");
 322                 ret = 1;
 323                 goto done;
 324         }
 325
 326         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 327                             POPT_CONTEXT_KEEP_FIRST);
 328
 329         while ((c = poptGetNextOpt(pc)) != -1) {
 330                 switch (c) {
 331                 case 'p':
 332                         processes_only = true;
 333                         break;
 334                 case 'v':
 335                         verbose = true;
 336                         break;
 337                 case 'L':
 338                         locks_only = true;
 339                         break;
 340                 case 'S':
 341                         shares_only = true;
 342                         break;
 343                 case 'b':
 344                         brief = true;
 345                         break;
 346                 case 'u':
 347                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 348                         break;
 349                 case 'P':
 350                 case 'R':
 351                         profile_only = c;
 352                         break;
 353                 case 'B':
 354                         show_brl = true;
 355                         break;
 356                 case 'n':
 357                         numeric_only = true;
 358                         break;
 359                 }
 360         }
 361
 362         /* setup the flags based on the possible combincations */
 363
 364         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 365         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 366         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 367
 368         if ( username )
 369                 Ucrit_addUid( nametouid(username) );
 370
 371         if (verbose) {
 372                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 373         }
 374
 375         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 376                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 377                         get_dyn_CONFIGFILE());
 378                 ret = -1;
 379                 goto done;
 380         }
 381
 382
 383         if (lp_clustering()) {
 384                 /*
 385                  * This implicitly initializes the global ctdbd
 386                  * connection, usable by the db_open() calls further
 387                  * down.
 388                  */
 389                 msg_ctx = messaging_init(NULL, procid_self(),
 390                                          event_context_init(NULL));
 391                 if (msg_ctx == NULL) {
 392                         fprintf(stderr, "messaging_init failed\n");
 393                         ret = -1;
 394                         goto done;
 395                 }
 396         }
 397
 398         if (!lp_load_global(get_dyn_CONFIGFILE())) {
 399                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 400                         get_dyn_CONFIGFILE());
 401                 ret = -1;
 402                 goto done;
 403         }
 404
 405         switch (profile_only) {
 406                 case 'P':
 407                         /* Dump profile data */
 408                         return status_profile_dump(verbose);
 409                 case 'R':
 410                         /* Continuously display rate-converted data */
 411                         return status_profile_rates(verbose);
 412                 default:
 413                         break;
 414         }
 415
 416         if ( show_processes ) {
 417                 d_printf("\nSamba version %s\n",samba_version_string());
 418                 d_printf("PID     Username      Group         Machine                        \n");
 419                 d_printf("-------------------------------------------------------------------\n");
 420                 if (lp_security() == SEC_SHARE) {
 421                         d_printf(" <processes do not show up in "
 422                                  "anonymous mode>\n");
 423                 }
 424
 425                 sessionid_traverse_read(traverse_sessionid, NULL);
 426
 427                 if (processes_only) {
 428                         goto done;
 429                 }
 430         }
 431
 432         if ( show_shares ) {
 433                 if (verbose) {
 434                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 435                 }
 436
 437                 if (brief) {
 438                         goto done;
 439                 }
 440
 441                 d_printf("\nService      pid     machine       Connected at\n");
 442                 d_printf("-------------------------------------------------------\n");
 443
 444                 connections_forall_read(traverse_fn1, NULL);
 445
 446                 d_printf("\n");
 447
 448                 if ( shares_only ) {
 449                         goto done;
 450                 }
 451         }
 452
 453         if ( show_locks ) {
 454                 int result;
 455                 struct db_context *db;
 456                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 457                              TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH, O_RDONLY, 0);
 458
 459                 if (!db) {
 460                         d_printf("%s not initialised\n",
 461                                  lock_path("locking.tdb"));
 462                         d_printf("This is normal if an SMB client has never "
 463                                  "connected to your server.\n");
 464                         exit(0);
 465                 } else {
 466                         TALLOC_FREE(db);
 467                 }
 468
 469                 if (!locking_init_readonly()) {
 470                         d_printf("Can't initialise locking module - exiting\n");
 471                         ret = 1;
 472                         goto done;
 473                 }
 474
 475                 result = share_mode_forall(print_share_mode, NULL);
 476
 477                 if (result == 0) {
 478                         d_printf("No locked files\n");
 479                 } else if (result < 0) {
 480                         d_printf("locked file list truncated\n");
 481                 }
 482
 483                 d_printf("\n");
 484
 485                 if (show_brl) {
 486                         brl_forall(print_brl, NULL);
 487                 }
 488
 489                 locking_end();
 490         }
 491
 492 done:
 493         TALLOC_FREE(frame);
 494         return ret;
 495 }