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/dbwrap.h"
  37 #include "dbwrap/dbwrap_open.h"
  38 #include "../libcli/security/security.h"
  39 #include "session.h"
  40 #include "locking/proto.h"
  41 #include "messages.h"
  42
  43 #define SMB_MAXPIDS             2048
  44 static uid_t            Ucrit_uid = 0;               /* added by OH */
  45 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  46 static int              Ucrit_MaxPid=0;                    /* added by OH */
  47 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  48
  49 static bool verbose, brief;
  50 static bool shares_only;            /* Added by RJS */
  51 static bool locks_only;            /* Added by RJS */
  52 static bool processes_only;
  53 static bool show_brl;
  54 static bool numeric_only;
  55
  56 const char *username = NULL;
  57
  58 extern bool status_profile_dump(bool be_verbose);
  59 extern bool status_profile_rates(bool be_verbose);
  60
  61 /* added by OH */
  62 static void Ucrit_addUid(uid_t uid)
  63 {
  64         Ucrit_uid = uid;
  65         Ucrit_IsActive = 1;
  66 }
  67
  68 static unsigned int Ucrit_checkUid(uid_t uid)
  69 {
  70         if ( !Ucrit_IsActive )
  71                 return 1;
  72
  73         if ( uid == Ucrit_uid )
  74                 return 1;
  75
  76         return 0;
  77 }
  78
  79 static unsigned int Ucrit_checkPid(struct server_id pid)
  80 {
  81         int i;
  82
  83         if ( !Ucrit_IsActive )
  84                 return 1;
  85
  86         for (i=0;i<Ucrit_MaxPid;i++) {
  87                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  88                         return 1;
  89         }
  90
  91         return 0;
  92 }
  93
  94 static bool Ucrit_addPid( struct server_id pid )
  95 {
  96         if ( !Ucrit_IsActive )
  97                 return True;
  98
  99         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
 100                 d_printf("ERROR: More than %d pids for user %s!\n",
 101                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
 102
 103                 return False;
 104         }
 105
 106         Ucrit_pid[Ucrit_MaxPid++] = pid;
 107
 108         return True;
 109 }
 110
 111 static void print_share_mode(const struct share_mode_entry *e,
 112                              const char *sharepath,
 113                              const char *fname,
 114                              void *dummy)
 115 {
 116         static int count;
 117
 118         if (!is_valid_share_mode_entry(e)) {
 119                 return;
 120         }
 121
 122         if (!process_exists(e->pid)) {
 123                 return;
 124         }
 125
 126         if (count==0) {
 127                 d_printf("Locked files:\n");
 128                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 129                 d_printf("--------------------------------------------------------------------------------------------------\n");
 130         }
 131         count++;
 132
 133         if (Ucrit_checkPid(e->pid)) {
 134                 d_printf("%-11s  ",procid_str_static(&e->pid));
 135                 d_printf("%-9u  ", (unsigned int)e->uid);
 136                 switch (map_share_mode_to_deny_mode(e->share_access,
 137                                                     e->private_options)) {
 138                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 139                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 140                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 141                         case DENY_READ: d_printf("DENY_READ  "); break;
 142                         case DENY_WRITE:printf("DENY_WRITE "); break;
 143                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 144                         default: {
 145                                 d_printf("unknown-please report ! "
 146                                          "e->share_access = 0x%x, "
 147                                          "e->private_options = 0x%x\n",
 148                                          (unsigned int)e->share_access,
 149                                          (unsigned int)e->private_options );
 150                                 break;
 151                         }
 152                 }
 153                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 154                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 155                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 156                         d_printf("RDWR       ");
 157                 } else if (e->access_mask & FILE_WRITE_DATA) {
 158                         d_printf("WRONLY     ");
 159                 } else {
 160                         d_printf("RDONLY     ");
 161                 }
 162
 163                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 164                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 165                         d_printf("EXCLUSIVE+BATCH ");
 166                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 167                         d_printf("EXCLUSIVE       ");
 168                 } else if (e->op_type & BATCH_OPLOCK) {
 169                         d_printf("BATCH           ");
 170                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 171                         d_printf("LEVEL_II        ");
 172                 } else {
 173                         d_printf("NONE            ");
 174                 }
 175
 176                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 177         }
 178 }
 179
 180 static void print_brl(struct file_id id,
 181                         struct server_id pid,
 182                         enum brl_type lock_type,
 183                         enum brl_flavour lock_flav,
 184                         br_off start,
 185                         br_off size,
 186                         void *private_data)
 187 {
 188         static int count;
 189         int i;
 190         static const struct {
 191                 enum brl_type lock_type;
 192                 const char *desc;
 193         } lock_types[] = {
 194                 { READ_LOCK, "R" },
 195                 { WRITE_LOCK, "W" },
 196                 { PENDING_READ_LOCK, "PR" },
 197                 { PENDING_WRITE_LOCK, "PW" },
 198                 { UNLOCK_LOCK, "U" }
 199         };
 200         const char *desc="X";
 201         const char *sharepath = "";
 202         char *fname = NULL;
 203         struct share_mode_lock *share_mode;
 204
 205         if (count==0) {
 206                 d_printf("Byte range locks:\n");
 207                 d_printf("Pid        dev:inode       R/W  start     size      SharePath               Name\n");
 208                 d_printf("--------------------------------------------------------------------------------\n");
 209         }
 210         count++;
 211
 212         share_mode = fetch_share_mode_unlocked(NULL, id);
 213         if (share_mode) {
 214                 bool has_stream = share_mode->stream_name != NULL;
 215
 216                 fname = talloc_asprintf(NULL, "%s%s%s", share_mode->base_name,
 217                                         has_stream ? ":" : "",
 218                                         has_stream ? share_mode->stream_name :
 219                                         "");
 220         } else {
 221                 fname = talloc_strdup(NULL, "");
 222                 if (fname == NULL) {
 223                         return;
 224                 }
 225         }
 226
 227         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 228                 if (lock_type == lock_types[i].lock_type) {
 229                         desc = lock_types[i].desc;
 230                 }
 231         }
 232
 233         d_printf("%-10s %-15s %-4s %-9.0f %-9.0f %-24s %-24s\n",
 234                  procid_str_static(&pid), file_id_string_tos(&id),
 235                  desc,
 236                  (double)start, (double)size,
 237                  sharepath, fname);
 238
 239         TALLOC_FREE(fname);
 240         TALLOC_FREE(share_mode);
 241 }
 242
 243 static int traverse_fn1(const struct connections_key *key,
 244                         const struct connections_data *crec,
 245                         void *state)
 246 {
 247         if (crec->cnum == -1)
 248                 return 0;
 249
 250         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 251                 return 0;
 252         }
 253
 254         d_printf("%-10s   %s   %-12s  %s",
 255                  crec->servicename,procid_str_static(&crec->pid),
 256                  crec->machine,
 257                  time_to_asc(crec->start));
 258
 259         return 0;
 260 }
 261
 262 static int traverse_sessionid(const char *key, struct sessionid *session,
 263                               void *private_data)
 264 {
 265         fstring uid_str, gid_str;
 266
 267         if (!process_exists(session->pid)
 268             || !Ucrit_checkUid(session->uid)) {
 269                 return 0;
 270         }
 271
 272         Ucrit_addPid(session->pid);
 273
 274         fstr_sprintf(uid_str, "%u", (unsigned int)session->uid);
 275         fstr_sprintf(gid_str, "%u", (unsigned int)session->gid);
 276
 277         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 278                  procid_str_static(&session->pid),
 279                  numeric_only ? uid_str : uidtoname(session->uid),
 280                  numeric_only ? gid_str : gidtoname(session->gid),
 281                  session->remote_machine, session->hostname);
 282
 283         return 0;
 284 }
 285
 286
 287
 288
 289  int main(int argc, char *argv[])
 290 {
 291         int c;
 292         int profile_only = 0;
 293         bool show_processes, show_locks, show_shares;
 294         poptContext pc;
 295         struct poptOption long_options[] = {
 296                 POPT_AUTOHELP
 297                 {"processes",   'p', POPT_ARG_NONE,     NULL, 'p', "Show processes only" },
 298                 {"verbose",     'v', POPT_ARG_NONE,     NULL, 'v', "Be verbose" },
 299                 {"locks",       'L', POPT_ARG_NONE,     NULL, 'L', "Show locks only" },
 300                 {"shares",      'S', POPT_ARG_NONE,     NULL, 'S', "Show shares only" },
 301                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 302                 {"brief",       'b', POPT_ARG_NONE,     NULL, 'b', "Be brief" },
 303                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 304                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 305                 {"byterange",   'B', POPT_ARG_NONE,     NULL, 'B', "Include byte range locks"},
 306                 {"numeric",     'n', POPT_ARG_NONE,     NULL, 'n', "Numeric uid/gid"},
 307                 POPT_COMMON_SAMBA
 308                 POPT_TABLEEND
 309         };
 310         TALLOC_CTX *frame = talloc_stackframe();
 311         int ret = 0;
 312         struct messaging_context *msg_ctx;
 313
 314         sec_init();
 315         load_case_tables();
 316
 317         setup_logging(argv[0], DEBUG_STDERR);
 318
 319         if (getuid() != geteuid()) {
 320                 d_printf("smbstatus should not be run setuid\n");
 321                 ret = 1;
 322                 goto done;
 323         }
 324
 325         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 326                             POPT_CONTEXT_KEEP_FIRST);
 327
 328         while ((c = poptGetNextOpt(pc)) != -1) {
 329                 switch (c) {
 330                 case 'p':
 331                         processes_only = true;
 332                         break;
 333                 case 'v':
 334                         verbose = true;
 335                         break;
 336                 case 'L':
 337                         locks_only = true;
 338                         break;
 339                 case 'S':
 340                         shares_only = true;
 341                         break;
 342                 case 'b':
 343                         brief = true;
 344                         break;
 345                 case 'u':
 346                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 347                         break;
 348                 case 'P':
 349                 case 'R':
 350                         profile_only = c;
 351                         break;
 352                 case 'B':
 353                         show_brl = true;
 354                         break;
 355                 case 'n':
 356                         numeric_only = true;
 357                         break;
 358                 }
 359         }
 360
 361         /* setup the flags based on the possible combincations */
 362
 363         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 364         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 365         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 366
 367         if ( username )
 368                 Ucrit_addUid( nametouid(username) );
 369
 370         if (verbose) {
 371                 d_printf("using configfile = %s\n", get_dyn_CONFIGFILE());
 372         }
 373
 374         if (!lp_load_initial_only(get_dyn_CONFIGFILE())) {
 375                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 376                         get_dyn_CONFIGFILE());
 377                 ret = -1;
 378                 goto done;
 379         }
 380
 381
 382         if (lp_clustering()) {
 383                 /*
 384                  * This implicitly initializes the global ctdbd
 385                  * connection, usable by the db_open() calls further
 386                  * down.
 387                  */
 388                 msg_ctx = messaging_init(NULL, procid_self(),
 389                                          event_context_init(NULL));
 390                 if (msg_ctx == NULL) {
 391                         fprintf(stderr, "messaging_init failed\n");
 392                         ret = -1;
 393                         goto done;
 394                 }
 395         }
 396
 397         if (!lp_load_global(get_dyn_CONFIGFILE())) {
 398                 fprintf(stderr, "Can't load %s - run testparm to debug it\n",
 399                         get_dyn_CONFIGFILE());
 400                 ret = -1;
 401                 goto done;
 402         }
 403
 404         switch (profile_only) {
 405                 case 'P':
 406                         /* Dump profile data */
 407                         return status_profile_dump(verbose);
 408                 case 'R':
 409                         /* Continuously display rate-converted data */
 410                         return status_profile_rates(verbose);
 411                 default:
 412                         break;
 413         }
 414
 415         if ( show_processes ) {
 416                 d_printf("\nSamba version %s\n",samba_version_string());
 417                 d_printf("PID     Username      Group         Machine                        \n");
 418                 d_printf("-------------------------------------------------------------------\n");
 419                 if (lp_security() == SEC_SHARE) {
 420                         d_printf(" <processes do not show up in "
 421                                  "anonymous mode>\n");
 422                 }
 423
 424                 sessionid_traverse_read(traverse_sessionid, NULL);
 425
 426                 if (processes_only) {
 427                         goto done;
 428                 }
 429         }
 430
 431         if ( show_shares ) {
 432                 if (verbose) {
 433                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 434                 }
 435
 436                 if (brief) {
 437                         goto done;
 438                 }
 439
 440                 d_printf("\nService      pid     machine       Connected at\n");
 441                 d_printf("-------------------------------------------------------\n");
 442
 443                 connections_forall_read(traverse_fn1, NULL);
 444
 445                 d_printf("\n");
 446
 447                 if ( shares_only ) {
 448                         goto done;
 449                 }
 450         }
 451
 452         if ( show_locks ) {
 453                 int result;
 454                 struct db_context *db;
 455                 db = db_open(NULL, lock_path("locking.tdb"), 0,
 456                              TDB_CLEAR_IF_FIRST|TDB_INCOMPATIBLE_HASH, O_RDONLY, 0);
 457
 458                 if (!db) {
 459                         d_printf("%s not initialised\n",
 460                                  lock_path("locking.tdb"));
 461                         d_printf("This is normal if an SMB client has never "
 462                                  "connected to your server.\n");
 463                         exit(0);
 464                 } else {
 465                         TALLOC_FREE(db);
 466                 }
 467
 468                 if (!locking_init_readonly()) {
 469                         d_printf("Can't initialise locking module - exiting\n");
 470                         ret = 1;
 471                         goto done;
 472                 }
 473
 474                 result = share_mode_forall(print_share_mode, NULL);
 475
 476                 if (result == 0) {
 477                         d_printf("No locked files\n");
 478                 } else if (result < 0) {
 479                         d_printf("locked file list truncated\n");
 480                 }
 481
 482                 d_printf("\n");
 483
 484                 if (show_brl) {
 485                         brl_forall(print_brl, NULL);
 486                 }
 487
 488                 locking_end();
 489         }
 490
 491 done:
 492         TALLOC_FREE(frame);
 493         return ret;
 494 }