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 #include "dbwrap.h"
  36
  37 #define SMB_MAXPIDS             2048
  38 static uid_t            Ucrit_uid = 0;               /* added by OH */
  39 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  40 static int              Ucrit_MaxPid=0;                    /* added by OH */
  41 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  42
  43 static bool verbose, brief;
  44 static bool shares_only;            /* Added by RJS */
  45 static bool locks_only;            /* Added by RJS */
  46 static bool processes_only;
  47 static bool show_brl;
  48 static bool numeric_only;
  49
  50 const char *username = NULL;
  51
  52 extern bool status_profile_dump(bool be_verbose);
  53 extern bool status_profile_rates(bool be_verbose);
  54
  55 /* added by OH */
  56 static void Ucrit_addUid(uid_t uid)
  57 {
  58         Ucrit_uid = uid;
  59         Ucrit_IsActive = 1;
  60 }
  61
  62 static unsigned int Ucrit_checkUid(uid_t uid)
  63 {
  64         if ( !Ucrit_IsActive )
  65                 return 1;
  66
  67         if ( uid == Ucrit_uid )
  68                 return 1;
  69
  70         return 0;
  71 }
  72
  73 static unsigned int Ucrit_checkPid(struct server_id pid)
  74 {
  75         int i;
  76
  77         if ( !Ucrit_IsActive )
  78                 return 1;
  79
  80         for (i=0;i<Ucrit_MaxPid;i++) {
  81                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  82                         return 1;
  83         }
  84
  85         return 0;
  86 }
  87
  88 static bool Ucrit_addPid( struct server_id pid )
  89 {
  90         if ( !Ucrit_IsActive )
  91                 return True;
  92
  93         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
  94                 d_printf("ERROR: More than %d pids for user %s!\n",
  95                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
  96
  97                 return False;
  98         }
  99
 100         Ucrit_pid[Ucrit_MaxPid++] = pid;
 101
 102         return True;
 103 }
 104
 105 static void print_share_mode(const struct share_mode_entry *e,
 106                              const char *sharepath,
 107                              const char *fname,
 108                              void *dummy)
 109 {
 110         static int count;
 111
 112         if (!is_valid_share_mode_entry(e)) {
 113                 return;
 114         }
 115
 116         if (!process_exists(e->pid)) {
 117                 return;
 118         }
 119
 120         if (count==0) {
 121                 d_printf("Locked files:\n");
 122                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 123                 d_printf("--------------------------------------------------------------------------------------------------\n");
 124         }
 125         count++;
 126
 127         if (Ucrit_checkPid(e->pid)) {
 128                 d_printf("%-11s  ",procid_str_static(&e->pid));
 129                 d_printf("%-9u  ", (unsigned int)e->uid);
 130                 switch (map_share_mode_to_deny_mode(e->share_access,
 131                                                     e->private_options)) {
 132                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 133                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 134                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 135                         case DENY_READ: d_printf("DENY_READ  "); break;
 136                         case DENY_WRITE:printf("DENY_WRITE "); break;
 137                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 138                         default: {
 139                                 d_printf("unknown-please report ! "
 140                                          "e->share_access = 0x%x, "
 141                                          "e->private_options = 0x%x\n",
 142                                          (unsigned int)e->share_access,
 143                                          (unsigned int)e->private_options );
 144                                 break;
 145                         }
 146                 }
 147                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 148                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 149                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 150                         d_printf("RDWR       ");
 151                 } else if (e->access_mask & FILE_WRITE_DATA) {
 152                         d_printf("WRONLY     ");
 153                 } else {
 154                         d_printf("RDONLY     ");
 155                 }
 156
 157                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 158                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 159                         d_printf("EXCLUSIVE+BATCH ");
 160                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 161                         d_printf("EXCLUSIVE       ");
 162                 } else if (e->op_type & BATCH_OPLOCK) {
 163                         d_printf("BATCH           ");
 164                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 165                         d_printf("LEVEL_II        ");
 166                 } else {
 167                         d_printf("NONE            ");
 168                 }
 169
 170                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 171         }
 172 }
 173
 174 static void print_brl(struct file_id id,
 175                         struct server_id pid,
 176                         enum brl_type lock_type,
 177                         enum brl_flavour lock_flav,
 178                         br_off start,
 179                         br_off size,
 180                         void *private_data)
 181 {
 182         static int count;
 183         int i;
 184         static const struct {
 185                 enum brl_type lock_type;
 186                 const char *desc;
 187         } lock_types[] = {
 188                 { READ_LOCK, "R" },
 189                 { WRITE_LOCK, "W" },
 190                 { PENDING_READ_LOCK, "PR" },
 191                 { PENDING_WRITE_LOCK, "PW" },
 192                 { UNLOCK_LOCK, "U" }
 193         };
 194         const char *desc="X";
 195         const char *sharepath = "";
 196         char *fname = NULL;
 197         struct share_mode_lock *share_mode;
 198
 199         if (count==0) {
 200                 d_printf("Byte range locks:\n");
 201                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 202                 d_printf("--------------------------------------------------------------------------------\n");
 203         }
 204         count++;
 205
 206         share_mode = fetch_share_mode_unlocked(NULL, id);
 207         if (share_mode) {
 208                 bool has_stream = share_mode->stream_name != NULL;
 209
 210                 fname = talloc_asprintf(NULL, "%s%s%s", share_mode->base_name,
 211                                         has_stream ? ":" : "",
 212                                         has_stream ? share_mode->stream_name :
 213                                         "");
 214         } else {
 215                 fname = talloc_strdup(NULL, "");
 216                 if (fname == NULL) {
 217                         return;
 218                 }
 219         }
 220
 221         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 222                 if (lock_type == lock_types[i].lock_type) {
 223                         desc = lock_types[i].desc;
 224                 }
 225         }
 226
 227         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 228                  procid_str_static(&pid), file_id_string_tos(&id),
 229                  desc,
 230                  (double)start, (double)size,
 231                  sharepath, fname);
 232
 233         TALLOC_FREE(fname);
 234         TALLOC_FREE(share_mode);
 235 }
 236
 237 static int traverse_fn1(const struct connections_key *key,
 238                         const struct connections_data *crec,
 239                         void *state)
 240 {
 241         if (crec->cnum == -1)
 242                 return 0;
 243
 244         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 245                 return 0;
 246         }
 247
 248         d_printf("%-10s   %s   %-12s  %s",
 249                  crec->servicename,procid_str_static(&crec->pid),
 250                  crec->machine,
 251                  time_to_asc(crec->start));
 252
 253         return 0;
 254 }
 255
 256 static int traverse_sessionid(const char *key, struct sessionid *session,
 257                               void *private_data)
 258 {
 259         fstring uid_str, gid_str;
 260
 261         if (!process_exists(session->pid)
 262             || !Ucrit_checkUid(session->uid)) {
 263                 return 0;
 264         }
 265
 266         Ucrit_addPid(session->pid);
 267
 268         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 269         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 270
 271         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 272                  procid_str_static(&session->pid),
 273                  numeric_only ? uid_str : uidtoname(session->uid),
 274                  numeric_only ? gid_str : gidtoname(session->gid),
 275                  session->remote_machine, session->hostname);
 276
 277         return 0;
 278 }
 279
 280
 281
 282
 283  int main(int argc, char *argv[])
 284 {
 285         int c;
 286         int profile_only = 0;
 287         bool show_processes, show_locks, show_shares;
 288         poptContext pc;
 289         struct poptOption long_options[] = {
 290                 POPT_AUTOHELP
 291                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 292                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 293                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 294                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 295                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 296                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 297                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 298                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 299                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 300                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 301                 POPT_COMMON_SAMBA
 302                 POPT_TABLEEND
 303         };
 304         TALLOC_CTX *frame = talloc_stackframe();
 305         int ret = 0;
 306         struct messaging_context *msg_ctx;
 307
 308         sec_init();
 309         load_case_tables();
 310
 311         setup_logging(argv[0],True);
 312
 313         dbf = x_stderr;
 314
 315         if (getuid() != geteuid()) {
 316                 d_printf("smbstatus should not be run setuid\n");
 317                 ret = 1;
 318                 goto done;
 319         }
 320
 321         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 322                             POPT_CONTEXT_KEEP_FIRST);
 323
 324         while ((c = poptGetNextOpt(pc)) != -1) {
 325                 switch (c) {
 326                 case 'p':
 327                         processes_only = true;
 328                         break;
 329                 case 'v':
 330                         verbose = true;
 331                         break;
 332                 case 'L':
 333                         locks_only = true;
 334                         break;
 335                 case 'S':
 336                         shares_only = true;
 337                         break;
 338                 case 'b':
 339                         brief = true;
 340                         break;
 341                 case 'u':
 342                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 343                         break;
 344                 case 'P':
 345                 case 'R':
 346                         profile_only = c;
 347                         break;
 348                 case 'B':
 349                         show_brl = true;
 350                         break;
 351                 case 'n':
 352                         numeric_only = true;
 353                         break;
 354                 }
 355         }
 356
 357         /* setup the flags based on the possible combincations */
 358
 359         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 360         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 361         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 362
 363         if ( username )
 364                 Ucrit_addUid( nametouid(username) );
 365
 366         if (verbose) {
 367                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 368         }
 369
 370         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 371                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 372                         get_dyn_CONFIGFILE());
 373                 ret = -1;
 374                 goto done;
 375         }
 376
 377
 378         if (lp_clustering()) {
 379                 /*
 380                  * This implicitly initializes the global ctdbd
 381                  * connection, usable by the db_open() calls further
 382                  * down.
 383                  */
 384                 msg_ctx = messaging_init(NULL, procid_self(),
 385                                          event_context_init(NULL));
 386                 if (msg_ctx == NULL) {
 387                         fprintf(stderr, "messaging_init failed\n");
 388                         ret = -1;
 389                         goto done;
 390                 }
 391         }
 392
 393         if (!lp_load(get_dyn_CONFIGFILE(),False,False,False,True)) {
 394                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 395                         get_dyn_CONFIGFILE());
 396                 ret = -1;
 397                 goto done;
 398         }
 399
 400         switch (profile_only) {
 401                 case 'P':
 402                         /* Dump profile data */
 403                         return status_profile_dump(verbose);
 404                 case 'R':
 405                         /* Continuously display rate-converted data */
 406                         return status_profile_rates(verbose);
 407                 default:
 408                         break;
 409         }
 410
 411         if ( show_processes ) {
 412                 d_printf("\nSamba version %s\n",samba_version_string());
 413                 d_printf("PID     Username      Group         Machine                        \n");
 414                 d_printf("-------------------------------------------------------------------\n");
 415                 if (lp_security() == SEC_SHARE) {
 416                         d_printf(" <processes do not show up in "
 417                                  "anonymous mode>\n");
 418                 }
 419
 420                 sessionid_traverse_read(traverse_sessionid, NULL);
 421
 422                 if (processes_only) {
 423                         goto done;
 424                 }
 425         }
 426
 427         if ( show_shares ) {
 428                 if (verbose) {
 429                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 430                 }
 431
 432                 if (brief) {
 433                         goto done;
 434                 }
 435
 436                 d_printf("\nService      pid     machine       Connected at\n");
 437                 d_printf("-------------------------------------------------------\n");
 438
 439                 connections_forall_read(traverse_fn1, NULL);
 440
 441                 d_printf("\n");
 442
 443                 if ( shares_only ) {
 444                         goto done;
 445                 }
 446         }
 447
 448         if ( show_locks ) {
 449                 int result;
 450                 struct db_context *db;
 451                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 452                              TDB_CLEAR_IF_FIRST, O_RDONLY, 0);
 453
 454                 if (!db) {
 455                         d_printf("%s not initialised\n",
 456                                  lock_path("locking.tdb"));
 457                         d_printf("This is normal if an SMB client has never "
 458                                  "connected to your server.\n");
 459                         exit(0);
 460                 } else {
 461                         TALLOC_FREE(db);
 462                 }
 463
 464                 if (!locking_init_readonly()) {
 465                         d_printf("Can't initialise locking module - exiting\n");
 466                         ret = 1;
 467                         goto done;
 468                 }
 469
 470                 result = share_mode_forall(print_share_mode, NULL);
 471
 472                 if (result == 0) {
 473                         d_printf("No locked files\n");
 474                 } else if (result == -1) {
 475                         d_printf("locked file list truncated\n");
 476                 }
 477
 478                 d_printf("\n");
 479
 480                 if (show_brl) {
 481                         brl_forall(print_brl, NULL);
 482                 }
 483
 484                 locking_end();
 485         }
 486
 487 done:
 488         TALLOC_FREE(frame);
 489         return ret;
 490 }