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