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 #include "messages.h"
  41
  42 #define SMB_MAXPIDS             2048
  43 static uid_t            Ucrit_uid = 0;               /* added by OH */
  44 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  45 static int              Ucrit_MaxPid=0;                    /* added by OH */
  46 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  47
  48 static bool verbose, brief;
  49 static bool shares_only;            /* Added by RJS */
  50 static bool locks_only;            /* Added by RJS */
  51 static bool processes_only;
  52 static bool show_brl;
  53 static bool numeric_only;
  54
  55 const char *username = NULL;
  56
  57 extern bool status_profile_dump(bool be_verbose);
  58 extern bool status_profile_rates(bool be_verbose);
  59
  60 /* added by OH */
  61 static void Ucrit_addUid(uid_t uid)
  62 {
  63         Ucrit_uid = uid;
  64         Ucrit_IsActive = 1;
  65 }
  66
  67 static unsigned int Ucrit_checkUid(uid_t uid)
  68 {
  69         if ( !Ucrit_IsActive )
  70                 return 1;
  71
  72         if ( uid == Ucrit_uid )
  73                 return 1;
  74
  75         return 0;
  76 }
  77
  78 static unsigned int Ucrit_checkPid(struct server_id pid)
  79 {
  80         int i;
  81
  82         if ( !Ucrit_IsActive )
  83                 return 1;
  84
  85         for (i=0;i<Ucrit_MaxPid;i++) {
  86                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  87                         return 1;
  88         }
  89
  90         return 0;
  91 }
  92
  93 static bool Ucrit_addPid( struct server_id pid )
  94 {
  95         if ( !Ucrit_IsActive )
  96                 return True;
  97
  98         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
  99                 d_printf("ERROR: More than %d pids for user %s!\n",
 100                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
 101
 102                 return False;
 103         }
 104
 105         Ucrit_pid[Ucrit_MaxPid++] = pid;
 106
 107         return True;
 108 }
 109
 110 static void print_share_mode(const struct share_mode_entry *e,
 111                              const char *sharepath,
 112                              const char *fname,
 113                              void *dummy)
 114 {
 115         static int count;
 116
 117         if (!is_valid_share_mode_entry(e)) {
 118                 return;
 119         }
 120
 121         if (!process_exists(e->pid)) {
 122                 return;
 123         }
 124
 125         if (count==0) {
 126                 d_printf("Locked files:\n");
 127                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 128                 d_printf("--------------------------------------------------------------------------------------------------\n");
 129         }
 130         count++;
 131
 132         if (Ucrit_checkPid(e->pid)) {
 133                 d_printf("%-11s  ",procid_str_static(&e->pid));
 134                 d_printf("%-9u  ", (unsigned int)e->uid);
 135                 switch (map_share_mode_to_deny_mode(e->share_access,
 136                                                     e->private_options)) {
 137                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 138                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 139                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 140                         case DENY_READ: d_printf("DENY_READ  "); break;
 141                         case DENY_WRITE:printf("DENY_WRITE "); break;
 142                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 143                         default: {
 144                                 d_printf("unknown-please report ! "
 145                                          "e->share_access = 0x%x, "
 146                                          "e->private_options = 0x%x\n",
 147                                          (unsigned int)e->share_access,
 148                                          (unsigned int)e->private_options );
 149                                 break;
 150                         }
 151                 }
 152                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 153                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 154                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 155                         d_printf("RDWR       ");
 156                 } else if (e->access_mask & FILE_WRITE_DATA) {
 157                         d_printf("WRONLY     ");
 158                 } else {
 159                         d_printf("RDONLY     ");
 160                 }
 161
 162                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 163                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 164                         d_printf("EXCLUSIVE+BATCH ");
 165                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 166                         d_printf("EXCLUSIVE       ");
 167                 } else if (e->op_type & BATCH_OPLOCK) {
 168                         d_printf("BATCH           ");
 169                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 170                         d_printf("LEVEL_II        ");
 171                 } else {
 172                         d_printf("NONE            ");
 173                 }
 174
 175                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 176         }
 177 }
 178
 179 static void print_brl(struct file_id id,
 180                         struct server_id pid,
 181                         enum brl_type lock_type,
 182                         enum brl_flavour lock_flav,
 183                         br_off start,
 184                         br_off size,
 185                         void *private_data)
 186 {
 187         static int count;
 188         int i;
 189         static const struct {
 190                 enum brl_type lock_type;
 191                 const char *desc;
 192         } lock_types[] = {
 193                 { READ_LOCK, "R" },
 194                 { WRITE_LOCK, "W" },
 195                 { PENDING_READ_LOCK, "PR" },
 196                 { PENDING_WRITE_LOCK, "PW" },
 197                 { UNLOCK_LOCK, "U" }
 198         };
 199         const char *desc="X";
 200         const char *sharepath = "";
 201         char *fname = NULL;
 202         struct share_mode_lock *share_mode;
 203
 204         if (count==0) {
 205                 d_printf("Byte range locks:\n");
 206                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 207                 d_printf("--------------------------------------------------------------------------------\n");
 208         }
 209         count++;
 210
 211         share_mode = fetch_share_mode_unlocked(NULL, id);
 212         if (share_mode) {
 213                 bool has_stream = share_mode->stream_name != NULL;
 214
 215                 fname = talloc_asprintf(NULL, "%s%s%s", share_mode->base_name,
 216                                         has_stream ? ":" : "",
 217                                         has_stream ? share_mode->stream_name :
 218                                         "");
 219         } else {
 220                 fname = talloc_strdup(NULL, "");
 221                 if (fname == NULL) {
 222                         return;
 223                 }
 224         }
 225
 226         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 227                 if (lock_type == lock_types[i].lock_type) {
 228                         desc = lock_types[i].desc;
 229                 }
 230         }
 231
 232         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 233                  procid_str_static(&pid), file_id_string_tos(&id),
 234                  desc,
 235                  (double)start, (double)size,
 236                  sharepath, fname);
 237
 238         TALLOC_FREE(fname);
 239         TALLOC_FREE(share_mode);
 240 }
 241
 242 static int traverse_fn1(const struct connections_key *key,
 243                         const struct connections_data *crec,
 244                         void *state)
 245 {
 246         if (crec->cnum == -1)
 247                 return 0;
 248
 249         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 250                 return 0;
 251         }
 252
 253         d_printf("%-10s   %s   %-12s  %s",
 254                  crec->servicename,procid_str_static(&crec->pid),
 255                  crec->machine,
 256                  time_to_asc(crec->start));
 257
 258         return 0;
 259 }
 260
 261 static int traverse_sessionid(const char *key, struct sessionid *session,
 262                               void *private_data)
 263 {
 264         fstring uid_str, gid_str;
 265
 266         if (!process_exists(session->pid)
 267             || !Ucrit_checkUid(session->uid)) {
 268                 return 0;
 269         }
 270
 271         Ucrit_addPid(session->pid);
 272
 273         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 274         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 275
 276         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 277                  procid_str_static(&session->pid),
 278                  numeric_only ? uid_str : uidtoname(session->uid),
 279                  numeric_only ? gid_str : gidtoname(session->gid),
 280                  session->remote_machine, session->hostname);
 281
 282         return 0;
 283 }
 284
 285
 286
 287
 288  int main(int argc, char *argv[])
 289 {
 290         int c;
 291         int profile_only = 0;
 292         bool show_processes, show_locks, show_shares;
 293         poptContext pc;
 294         struct poptOption long_options[] = {
 295                 POPT_AUTOHELP
 296                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 297                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 298                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 299                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 300                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 301                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 302                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 303                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 304                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 305                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 306                 POPT_COMMON_SAMBA
 307                 POPT_TABLEEND
 308         };
 309         TALLOC_CTX *frame = talloc_stackframe();
 310         int ret = 0;
 311         struct messaging_context *msg_ctx;
 312
 313         sec_init();
 314         load_case_tables();
 315
 316         setup_logging(argv[0], DEBUG_STDERR);
 317
 318         if (getuid() != geteuid()) {
 319                 d_printf("smbstatus should not be run setuid\n");
 320                 ret = 1;
 321                 goto done;
 322         }
 323
 324         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 325                             POPT_CONTEXT_KEEP_FIRST);
 326
 327         while ((c = poptGetNextOpt(pc)) != -1) {
 328                 switch (c) {
 329                 case 'p':
 330                         processes_only = true;
 331                         break;
 332                 case 'v':
 333                         verbose = true;
 334                         break;
 335                 case 'L':
 336                         locks_only = true;
 337                         break;
 338                 case 'S':
 339                         shares_only = true;
 340                         break;
 341                 case 'b':
 342                         brief = true;
 343                         break;
 344                 case 'u':
 345                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 346                         break;
 347                 case 'P':
 348                 case 'R':
 349                         profile_only = c;
 350                         break;
 351                 case 'B':
 352                         show_brl = true;
 353                         break;
 354                 case 'n':
 355                         numeric_only = true;
 356                         break;
 357                 }
 358         }
 359
 360         /* setup the flags based on the possible combincations */
 361
 362         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 363         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 364         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 365
 366         if ( username )
 367                 Ucrit_addUid( nametouid(username) );
 368
 369         if (verbose) {
 370                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 371         }
 372
 373         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 374                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 375                         get_dyn_CONFIGFILE());
 376                 ret = -1;
 377                 goto done;
 378         }
 379
 380
 381         if (lp_clustering()) {
 382                 /*
 383                  * This implicitly initializes the global ctdbd
 384                  * connection, usable by the db_open() calls further
 385                  * down.
 386                  */
 387                 msg_ctx = messaging_init(NULL, procid_self(),
 388                                          event_context_init(NULL));
 389                 if (msg_ctx == NULL) {
 390                         fprintf(stderr, "messaging_init failed\n");
 391                         ret = -1;
 392                         goto done;
 393                 }
 394         }
 395
 396         if (!lp_load(get_dyn_CONFIGFILE(),False,False,False,True)) {
 397                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 398                         get_dyn_CONFIGFILE());
 399                 ret = -1;
 400                 goto done;
 401         }
 402
 403         switch (profile_only) {
 404                 case 'P':
 405                         /* Dump profile data */
 406                         return status_profile_dump(verbose);
 407                 case 'R':
 408                         /* Continuously display rate-converted data */
 409                         return status_profile_rates(verbose);
 410                 default:
 411                         break;
 412         }
 413
 414         if ( show_processes ) {
 415                 d_printf("\nSamba version %s\n",samba_version_string());
 416                 d_printf("PID     Username      Group         Machine                        \n");
 417                 d_printf("-------------------------------------------------------------------\n");
 418                 if (lp_security() == SEC_SHARE) {
 419                         d_printf(" <processes do not show up in "
 420                                  "anonymous mode>\n");
 421                 }
 422
 423                 sessionid_traverse_read(traverse_sessionid, NULL);
 424
 425                 if (processes_only) {
 426                         goto done;
 427                 }
 428         }
 429
 430         if ( show_shares ) {
 431                 if (verbose) {
 432                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 433                 }
 434
 435                 if (brief) {
 436                         goto done;
 437                 }
 438
 439                 d_printf("\nService      pid     machine       Connected at\n");
 440                 d_printf("-------------------------------------------------------\n");
 441
 442                 connections_forall_read(traverse_fn1, NULL);
 443
 444                 d_printf("\n");
 445
 446                 if ( shares_only ) {
 447                         goto done;
 448                 }
 449         }
 450
 451         if ( show_locks ) {
 452                 int result;
 453                 struct db_context *db;
 454                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 455                              TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH, O_RDONLY, 0);
 456
 457                 if (!db) {
 458                         d_printf("%s not initialised\n",
 459                                  lock_path("locking.tdb"));
 460                         d_printf("This is normal if an SMB client has never "
 461                                  "connected to your server.\n");
 462                         exit(0);
 463                 } else {
 464                         TALLOC_FREE(db);
 465                 }
 466
 467                 if (!locking_init_readonly()) {
 468                         d_printf("Can't initialise locking module - exiting\n");
 469                         ret = 1;
 470                         goto done;
 471                 }
 472
 473                 result = share_mode_forall(print_share_mode, NULL);
 474
 475                 if (result == 0) {
 476                         d_printf("No locked files\n");
 477                 } else if (result < 0) {
 478                         d_printf("locked file list truncated\n");
 479                 }
 480
 481                 d_printf("\n");
 482
 483                 if (show_brl) {
 484                         brl_forall(print_brl, NULL);
 485                 }
 486
 487                 locking_end();
 488         }
 489
 490 done:
 491         TALLOC_FREE(frame);
 492         return ret;
 493 }