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.h"
  37 #include "../libcli/security/security.h"
  38 #include "session.h"
  39 #include "locking/proto.h"
  40
  41 #define SMB_MAXPIDS             2048
  42 static uid_t            Ucrit_uid = 0;               /* added by OH */
  43 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  44 static int              Ucrit_MaxPid=0;                    /* added by OH */
  45 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  46
  47 static bool verbose, brief;
  48 static bool shares_only;            /* Added by RJS */
  49 static bool locks_only;            /* Added by RJS */
  50 static bool processes_only;
  51 static bool show_brl;
  52 static bool numeric_only;
  53
  54 const char *username = NULL;
  55
  56 extern bool status_profile_dump(bool be_verbose);
  57 extern bool status_profile_rates(bool be_verbose);
  58
  59 /* added by OH */
  60 static void Ucrit_addUid(uid_t uid)
  61 {
  62         Ucrit_uid = uid;
  63         Ucrit_IsActive = 1;
  64 }
  65
  66 static unsigned int Ucrit_checkUid(uid_t uid)
  67 {
  68         if ( !Ucrit_IsActive )
  69                 return 1;
  70
  71         if ( uid == Ucrit_uid )
  72                 return 1;
  73
  74         return 0;
  75 }
  76
  77 static unsigned int Ucrit_checkPid(struct server_id pid)
  78 {
  79         int i;
  80
  81         if ( !Ucrit_IsActive )
  82                 return 1;
  83
  84         for (i=0;i<Ucrit_MaxPid;i++) {
  85                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  86                         return 1;
  87         }
  88
  89         return 0;
  90 }
  91
  92 static bool Ucrit_addPid( struct server_id pid )
  93 {
  94         if ( !Ucrit_IsActive )
  95                 return True;
  96
  97         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
  98                 d_printf("ERROR: More than %d pids for user %s!\n",
  99                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
 100
 101                 return False;
 102         }
 103
 104         Ucrit_pid[Ucrit_MaxPid++] = pid;
 105
 106         return True;
 107 }
 108
 109 static void print_share_mode(const struct share_mode_entry *e,
 110                              const char *sharepath,
 111                              const char *fname,
 112                              void *dummy)
 113 {
 114         static int count;
 115
 116         if (!is_valid_share_mode_entry(e)) {
 117                 return;
 118         }
 119
 120         if (!process_exists(e->pid)) {
 121                 return;
 122         }
 123
 124         if (count==0) {
 125                 d_printf("Locked files:\n");
 126                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 127                 d_printf("--------------------------------------------------------------------------------------------------\n");
 128         }
 129         count++;
 130
 131         if (Ucrit_checkPid(e->pid)) {
 132                 d_printf("%-11s  ",procid_str_static(&e->pid));
 133                 d_printf("%-9u  ", (unsigned int)e->uid);
 134                 switch (map_share_mode_to_deny_mode(e->share_access,
 135                                                     e->private_options)) {
 136                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 137                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 138                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 139                         case DENY_READ: d_printf("DENY_READ  "); break;
 140                         case DENY_WRITE:printf("DENY_WRITE "); break;
 141                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 142                         default: {
 143                                 d_printf("unknown-please report ! "
 144                                          "e->share_access = 0x%x, "
 145                                          "e->private_options = 0x%x\n",
 146                                          (unsigned int)e->share_access,
 147                                          (unsigned int)e->private_options );
 148                                 break;
 149                         }
 150                 }
 151                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 152                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 153                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 154                         d_printf("RDWR       ");
 155                 } else if (e->access_mask & FILE_WRITE_DATA) {
 156                         d_printf("WRONLY     ");
 157                 } else {
 158                         d_printf("RDONLY     ");
 159                 }
 160
 161                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 162                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 163                         d_printf("EXCLUSIVE+BATCH ");
 164                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 165                         d_printf("EXCLUSIVE       ");
 166                 } else if (e->op_type & BATCH_OPLOCK) {
 167                         d_printf("BATCH           ");
 168                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 169                         d_printf("LEVEL_II        ");
 170                 } else {
 171                         d_printf("NONE            ");
 172                 }
 173
 174                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 175         }
 176 }
 177
 178 static void print_brl(struct file_id id,
 179                         struct server_id pid,
 180                         enum brl_type lock_type,
 181                         enum brl_flavour lock_flav,
 182                         br_off start,
 183                         br_off size,
 184                         void *private_data)
 185 {
 186         static int count;
 187         int i;
 188         static const struct {
 189                 enum brl_type lock_type;
 190                 const char *desc;
 191         } lock_types[] = {
 192                 { READ_LOCK, "R" },
 193                 { WRITE_LOCK, "W" },
 194                 { PENDING_READ_LOCK, "PR" },
 195                 { PENDING_WRITE_LOCK, "PW" },
 196                 { UNLOCK_LOCK, "U" }
 197         };
 198         const char *desc="X";
 199         const char *sharepath = "";
 200         char *fname = NULL;
 201         struct share_mode_lock *share_mode;
 202
 203         if (count==0) {
 204                 d_printf("Byte range locks:\n");
 205                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 206                 d_printf("--------------------------------------------------------------------------------\n");
 207         }
 208         count++;
 209
 210         share_mode = fetch_share_mode_unlocked(NULL, id);
 211         if (share_mode) {
 212                 bool has_stream = share_mode->stream_name != NULL;
 213
 214                 fname = talloc_asprintf(NULL, "%s%s%s", share_mode->base_name,
 215                                         has_stream ? ":" : "",
 216                                         has_stream ? share_mode->stream_name :
 217                                         "");
 218         } else {
 219                 fname = talloc_strdup(NULL, "");
 220                 if (fname == NULL) {
 221                         return;
 222                 }
 223         }
 224
 225         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 226                 if (lock_type == lock_types[i].lock_type) {
 227                         desc = lock_types[i].desc;
 228                 }
 229         }
 230
 231         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 232                  procid_str_static(&pid), file_id_string_tos(&id),
 233                  desc,
 234                  (double)start, (double)size,
 235                  sharepath, fname);
 236
 237         TALLOC_FREE(fname);
 238         TALLOC_FREE(share_mode);
 239 }
 240
 241 static int traverse_fn1(const struct connections_key *key,
 242                         const struct connections_data *crec,
 243                         void *state)
 244 {
 245         if (crec->cnum == -1)
 246                 return 0;
 247
 248         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 249                 return 0;
 250         }
 251
 252         d_printf("%-10s   %s   %-12s  %s",
 253                  crec->servicename,procid_str_static(&crec->pid),
 254                  crec->machine,
 255                  time_to_asc(crec->start));
 256
 257         return 0;
 258 }
 259
 260 static int traverse_sessionid(const char *key, struct sessionid *session,
 261                               void *private_data)
 262 {
 263         fstring uid_str, gid_str;
 264
 265         if (!process_exists(session->pid)
 266             || !Ucrit_checkUid(session->uid)) {
 267                 return 0;
 268         }
 269
 270         Ucrit_addPid(session->pid);
 271
 272         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 273         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 274
 275         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 276                  procid_str_static(&session->pid),
 277                  numeric_only ? uid_str : uidtoname(session->uid),
 278                  numeric_only ? gid_str : gidtoname(session->gid),
 279                  session->remote_machine, session->hostname);
 280
 281         return 0;
 282 }
 283
 284
 285
 286
 287  int main(int argc, char *argv[])
 288 {
 289         int c;
 290         int profile_only = 0;
 291         bool show_processes, show_locks, show_shares;
 292         poptContext pc;
 293         struct poptOption long_options[] = {
 294                 POPT_AUTOHELP
 295                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 296                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 297                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 298                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 299                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 300                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 301                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 302                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 303                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 304                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 305                 POPT_COMMON_SAMBA
 306                 POPT_TABLEEND
 307         };
 308         TALLOC_CTX *frame = talloc_stackframe();
 309         int ret = 0;
 310         struct messaging_context *msg_ctx;
 311
 312         sec_init();
 313         load_case_tables();
 314
 315         setup_logging(argv[0], DEBUG_STDERR);
 316
 317         if (getuid() != geteuid()) {
 318                 d_printf("smbstatus should not be run setuid\n");
 319                 ret = 1;
 320                 goto done;
 321         }
 322
 323         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 324                             POPT_CONTEXT_KEEP_FIRST);
 325
 326         while ((c = poptGetNextOpt(pc)) != -1) {
 327                 switch (c) {
 328                 case 'p':
 329                         processes_only = true;
 330                         break;
 331                 case 'v':
 332                         verbose = true;
 333                         break;
 334                 case 'L':
 335                         locks_only = true;
 336                         break;
 337                 case 'S':
 338                         shares_only = true;
 339                         break;
 340                 case 'b':
 341                         brief = true;
 342                         break;
 343                 case 'u':
 344                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 345                         break;
 346                 case 'P':
 347                 case 'R':
 348                         profile_only = c;
 349                         break;
 350                 case 'B':
 351                         show_brl = true;
 352                         break;
 353                 case 'n':
 354                         numeric_only = true;
 355                         break;
 356                 }
 357         }
 358
 359         /* setup the flags based on the possible combincations */
 360
 361         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 362         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 363         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 364
 365         if ( username )
 366                 Ucrit_addUid( nametouid(username) );
 367
 368         if (verbose) {
 369                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 370         }
 371
 372         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 373                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 374                         get_dyn_CONFIGFILE());
 375                 ret = -1;
 376                 goto done;
 377         }
 378
 379
 380         if (lp_clustering()) {
 381                 /*
 382                  * This implicitly initializes the global ctdbd
 383                  * connection, usable by the db_open() calls further
 384                  * down.
 385                  */
 386                 msg_ctx = messaging_init(NULL, procid_self(),
 387                                          event_context_init(NULL));
 388                 if (msg_ctx == NULL) {
 389                         fprintf(stderr, "messaging_init failed\n");
 390                         ret = -1;
 391                         goto done;
 392                 }
 393         }
 394
 395         if (!lp_load(get_dyn_CONFIGFILE(),False,False,False,True)) {
 396                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 397                         get_dyn_CONFIGFILE());
 398                 ret = -1;
 399                 goto done;
 400         }
 401
 402         switch (profile_only) {
 403                 case 'P':
 404                         /* Dump profile data */
 405                         return status_profile_dump(verbose);
 406                 case 'R':
 407                         /* Continuously display rate-converted data */
 408                         return status_profile_rates(verbose);
 409                 default:
 410                         break;
 411         }
 412
 413         if ( show_processes ) {
 414                 d_printf("\nSamba version %s\n",samba_version_string());
 415                 d_printf("PID     Username      Group         Machine                        \n");
 416                 d_printf("-------------------------------------------------------------------\n");
 417                 if (lp_security() == SEC_SHARE) {
 418                         d_printf(" <processes do not show up in "
 419                                  "anonymous mode>\n");
 420                 }
 421
 422                 sessionid_traverse_read(traverse_sessionid, NULL);
 423
 424                 if (processes_only) {
 425                         goto done;
 426                 }
 427         }
 428
 429         if ( show_shares ) {
 430                 if (verbose) {
 431                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 432                 }
 433
 434                 if (brief) {
 435                         goto done;
 436                 }
 437
 438                 d_printf("\nService      pid     machine       Connected at\n");
 439                 d_printf("-------------------------------------------------------\n");
 440
 441                 connections_forall_read(traverse_fn1, NULL);
 442
 443                 d_printf("\n");
 444
 445                 if ( shares_only ) {
 446                         goto done;
 447                 }
 448         }
 449
 450         if ( show_locks ) {
 451                 int result;
 452                 struct db_context *db;
 453                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 454                              TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH, O_RDONLY, 0);
 455
 456                 if (!db) {
 457                         d_printf("%s not initialised\n",
 458                                  lock_path("locking.tdb"));
 459                         d_printf("This is normal if an SMB client has never "
 460                                  "connected to your server.\n");
 461                         exit(0);
 462                 } else {
 463                         TALLOC_FREE(db);
 464                 }
 465
 466                 if (!locking_init_readonly()) {
 467                         d_printf("Can't initialise locking module - exiting\n");
 468                         ret = 1;
 469                         goto done;
 470                 }
 471
 472                 result = share_mode_forall(print_share_mode, NULL);
 473
 474                 if (result == 0) {
 475                         d_printf("No locked files\n");
 476                 } else if (result == -1) {
 477                         d_printf("locked file list truncated\n");
 478                 }
 479
 480                 d_printf("\n");
 481
 482                 if (show_brl) {
 483                         brl_forall(print_brl, NULL);
 484                 }
 485
 486                 locking_end();
 487         }
 488
 489 done:
 490         TALLOC_FREE(frame);
 491         return ret;
 492 }