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 "popt_common.h"
  35
  36 #define SMB_MAXPIDS             2048
  37 static uid_t            Ucrit_uid = 0;               /* added by OH */
  38 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  39 static int              Ucrit_MaxPid=0;                    /* added by OH */
  40 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  41
  42 static bool verbose, brief;
  43 static bool shares_only;            /* Added by RJS */
  44 static bool locks_only;            /* Added by RJS */
  45 static bool processes_only;
  46 static bool show_brl;
  47 static bool numeric_only;
  48
  49 const char *username = NULL;
  50
  51 extern bool status_profile_dump(bool be_verbose);
  52 extern bool status_profile_rates(bool be_verbose);
  53
  54 /* added by OH */
  55 static void Ucrit_addUid(uid_t uid)
  56 {
  57         Ucrit_uid = uid;
  58         Ucrit_IsActive = 1;
  59 }
  60
  61 static unsigned int Ucrit_checkUid(uid_t uid)
  62 {
  63         if ( !Ucrit_IsActive )
  64                 return 1;
  65
  66         if ( uid == Ucrit_uid )
  67                 return 1;
  68
  69         return 0;
  70 }
  71
  72 static unsigned int Ucrit_checkPid(struct server_id pid)
  73 {
  74         int i;
  75
  76         if ( !Ucrit_IsActive )
  77                 return 1;
  78
  79         for (i=0;i<Ucrit_MaxPid;i++) {
  80                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  81                         return 1;
  82         }
  83
  84         return 0;
  85 }
  86
  87 static bool Ucrit_addPid( struct server_id pid )
  88 {
  89         if ( !Ucrit_IsActive )
  90                 return True;
  91
  92         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
  93                 d_printf("ERROR: More than %d pids for user %s!\n",
  94                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
  95
  96                 return False;
  97         }
  98
  99         Ucrit_pid[Ucrit_MaxPid++] = pid;
 100
 101         return True;
 102 }
 103
 104 static void print_share_mode(const struct share_mode_entry *e,
 105                              const char *sharepath,
 106                              const char *fname,
 107                              void *dummy)
 108 {
 109         static int count;
 110
 111         if (!is_valid_share_mode_entry(e)) {
 112                 return;
 113         }
 114
 115         if (!process_exists(e->pid)) {
 116                 return;
 117         }
 118
 119         if (count==0) {
 120                 d_printf("Locked files:\n");
 121                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 122                 d_printf("--------------------------------------------------------------------------------------------------\n");
 123         }
 124         count++;
 125
 126         if (Ucrit_checkPid(e->pid)) {
 127                 d_printf("%-11s  ",procid_str_static(&e->pid));
 128                 d_printf("%-9u  ", (unsigned int)e->uid);
 129                 switch (map_share_mode_to_deny_mode(e->share_access,
 130                                                     e->private_options)) {
 131                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 132                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 133                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 134                         case DENY_READ: d_printf("DENY_READ  "); break;
 135                         case DENY_WRITE:printf("DENY_WRITE "); break;
 136                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 137                         default: {
 138                                 d_printf("unknown-please report ! "
 139                                          "e->share_access = 0x%x, "
 140                                          "e->private_options = 0x%x\n",
 141                                          (unsigned int)e->share_access,
 142                                          (unsigned int)e->private_options );
 143                                 break;
 144                         }
 145                 }
 146                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 147                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 148                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 149                         d_printf("RDWR       ");
 150                 } else if (e->access_mask & FILE_WRITE_DATA) {
 151                         d_printf("WRONLY     ");
 152                 } else {
 153                         d_printf("RDONLY     ");
 154                 }
 155
 156                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 157                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 158                         d_printf("EXCLUSIVE+BATCH ");
 159                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 160                         d_printf("EXCLUSIVE       ");
 161                 } else if (e->op_type & BATCH_OPLOCK) {
 162                         d_printf("BATCH           ");
 163                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 164                         d_printf("LEVEL_II        ");
 165                 } else {
 166                         d_printf("NONE            ");
 167                 }
 168
 169                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 170         }
 171 }
 172
 173 static void print_brl(struct file_id id,
 174                         struct server_id pid,
 175                         enum brl_type lock_type,
 176                         enum brl_flavour lock_flav,
 177                         br_off start,
 178                         br_off size,
 179                         void *private_data)
 180 {
 181         static int count;
 182         int i;
 183         static const struct {
 184                 enum brl_type lock_type;
 185                 const char *desc;
 186         } lock_types[] = {
 187                 { READ_LOCK, "R" },
 188                 { WRITE_LOCK, "W" },
 189                 { PENDING_READ_LOCK, "PR" },
 190                 { PENDING_WRITE_LOCK, "PW" },
 191                 { UNLOCK_LOCK, "U" }
 192         };
 193         const char *desc="X";
 194         const char *sharepath = "";
 195         char *fname = NULL;
 196         struct share_mode_lock *share_mode;
 197
 198         if (count==0) {
 199                 d_printf("Byte range locks:\n");
 200                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 201                 d_printf("--------------------------------------------------------------------------------\n");
 202         }
 203         count++;
 204
 205         share_mode = fetch_share_mode_unlocked(NULL, id);
 206         if (share_mode) {
 207                 bool has_stream = share_mode->stream_name != NULL;
 208
 209                 fname = talloc_asprintf(NULL, "%s%s%s", share_mode->base_name,
 210                                         has_stream ? ":" : "",
 211                                         has_stream ? share_mode->stream_name :
 212                                         "");
 213         } else {
 214                 fname = talloc_strdup(NULL, "");
 215                 if (fname == NULL) {
 216                         return;
 217                 }
 218         }
 219
 220         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 221                 if (lock_type == lock_types[i].lock_type) {
 222                         desc = lock_types[i].desc;
 223                 }
 224         }
 225
 226         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 227                  procid_str_static(&pid), file_id_string_tos(&id),
 228                  desc,
 229                  (double)start, (double)size,
 230                  sharepath, fname);
 231
 232         TALLOC_FREE(fname);
 233         TALLOC_FREE(share_mode);
 234 }
 235
 236 static int traverse_fn1(const struct connections_key *key,
 237                         const struct connections_data *crec,
 238                         void *state)
 239 {
 240         if (crec->cnum == -1)
 241                 return 0;
 242
 243         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 244                 return 0;
 245         }
 246
 247         d_printf("%-10s   %s   %-12s  %s",
 248                  crec->servicename,procid_str_static(&crec->pid),
 249                  crec->machine,
 250                  time_to_asc(crec->start));
 251
 252         return 0;
 253 }
 254
 255 static int traverse_sessionid(const char *key, struct sessionid *session,
 256                               void *private_data)
 257 {
 258         fstring uid_str, gid_str;
 259
 260         if (!process_exists(session->pid)
 261             || !Ucrit_checkUid(session->uid)) {
 262                 return 0;
 263         }
 264
 265         Ucrit_addPid(session->pid);
 266
 267         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 268         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 269
 270         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 271                  procid_str_static(&session->pid),
 272                  numeric_only ? uid_str : uidtoname(session->uid),
 273                  numeric_only ? gid_str : gidtoname(session->gid),
 274                  session->remote_machine, session->hostname);
 275
 276         return 0;
 277 }
 278
 279
 280
 281
 282  int main(int argc, char *argv[])
 283 {
 284         int c;
 285         int profile_only = 0;
 286         bool show_processes, show_locks, show_shares;
 287         poptContext pc;
 288         struct poptOption long_options[] = {
 289                 POPT_AUTOHELP
 290                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 291                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 292                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 293                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 294                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 295                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 296                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 297                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 298                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 299                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 300                 POPT_COMMON_SAMBA
 301                 POPT_TABLEEND
 302         };
 303         TALLOC_CTX *frame = talloc_stackframe();
 304         int ret = 0;
 305         struct messaging_context *msg_ctx;
 306
 307         sec_init();
 308         load_case_tables();
 309
 310         setup_logging(argv[0],True);
 311
 312         dbf = x_stderr;
 313
 314         if (getuid() != geteuid()) {
 315                 d_printf("smbstatus should not be run setuid\n");
 316                 ret = 1;
 317                 goto done;
 318         }
 319
 320         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 321                             POPT_CONTEXT_KEEP_FIRST);
 322
 323         while ((c = poptGetNextOpt(pc)) != -1) {
 324                 switch (c) {
 325                 case 'p':
 326                         processes_only = true;
 327                         break;
 328                 case 'v':
 329                         verbose = true;
 330                         break;
 331                 case 'L':
 332                         locks_only = true;
 333                         break;
 334                 case 'S':
 335                         shares_only = true;
 336                         break;
 337                 case 'b':
 338                         brief = true;
 339                         break;
 340                 case 'u':
 341                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 342                         break;
 343                 case 'P':
 344                 case 'R':
 345                         profile_only = c;
 346                         break;
 347                 case 'B':
 348                         show_brl = true;
 349                         break;
 350                 case 'n':
 351                         numeric_only = true;
 352                         break;
 353                 }
 354         }
 355
 356         /* setup the flags based on the possible combincations */
 357
 358         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 359         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 360         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 361
 362         if ( username )
 363                 Ucrit_addUid( nametouid(username) );
 364
 365         if (verbose) {
 366                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 367         }
 368
 369         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 370                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 371                         get_dyn_CONFIGFILE());
 372                 ret = -1;
 373                 goto done;
 374         }
 375
 376
 377         if (lp_clustering()) {
 378                 /*
 379                  * This implicitly initializes the global ctdbd
 380                  * connection, usable by the db_open() calls further
 381                  * down.
 382                  */
 383                 msg_ctx = messaging_init(NULL, procid_self(),
 384                                          event_context_init(NULL));
 385                 if (msg_ctx == NULL) {
 386                         fprintf(stderr, "messaging_init failed\n");
 387                         ret = -1;
 388                         goto done;
 389                 }
 390         }
 391
 392         if (!lp_load(get_dyn_CONFIGFILE(),False,False,False,True)) {
 393                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 394                         get_dyn_CONFIGFILE());
 395                 ret = -1;
 396                 goto done;
 397         }
 398
 399         switch (profile_only) {
 400                 case 'P':
 401                         /* Dump profile data */
 402                         return status_profile_dump(verbose);
 403                 case 'R':
 404                         /* Continuously display rate-converted data */
 405                         return status_profile_rates(verbose);
 406                 default:
 407                         break;
 408         }
 409
 410         if ( show_processes ) {
 411                 d_printf("\nSamba version %s\n",samba_version_string());
 412                 d_printf("PID     Username      Group         Machine                        \n");
 413                 d_printf("-------------------------------------------------------------------\n");
 414                 if (lp_security() == SEC_SHARE) {
 415                         d_printf(" <processes do not show up in "
 416                                  "anonymous mode>\n");
 417                 }
 418
 419                 sessionid_traverse_read(traverse_sessionid, NULL);
 420
 421                 if (processes_only) {
 422                         goto done;
 423                 }
 424         }
 425
 426         if ( show_shares ) {
 427                 if (verbose) {
 428                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 429                 }
 430
 431                 if (brief) {
 432                         goto done;
 433                 }
 434
 435                 d_printf("\nService      pid     machine       Connected at\n");
 436                 d_printf("-------------------------------------------------------\n");
 437
 438                 connections_forall_read(traverse_fn1, NULL);
 439
 440                 d_printf("\n");
 441
 442                 if ( shares_only ) {
 443                         goto done;
 444                 }
 445         }
 446
 447         if ( show_locks ) {
 448                 int result;
 449                 struct db_context *db;
 450                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 451                              TDB_CLEAR_IF_FIRST, O_RDONLY, 0);
 452
 453                 if (!db) {
 454                         d_printf("%s not initialised\n",
 455                                  lock_path("locking.tdb"));
 456                         d_printf("This is normal if an SMB client has never "
 457                                  "connected to your server.\n");
 458                         exit(0);
 459                 } else {
 460                         TALLOC_FREE(db);
 461                 }
 462
 463                 if (!locking_init_readonly()) {
 464                         d_printf("Can't initialise locking module - exiting\n");
 465                         ret = 1;
 466                         goto done;
 467                 }
 468
 469                 result = share_mode_forall(print_share_mode, NULL);
 470
 471                 if (result == 0) {
 472                         d_printf("No locked files\n");
 473                 } else if (result == -1) {
 474                         d_printf("locked file list truncated\n");
 475                 }
 476
 477                 d_printf("\n");
 478
 479                 if (show_brl) {
 480                         brl_forall(print_brl, NULL);
 481                 }
 482
 483                 locking_end();
 484         }
 485
 486 done:
 487         TALLOC_FREE(frame);
 488         return ret;
 489 }