source/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 2 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, write to the Free Software
  18    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19
  20    Revision History:
  21
  22    12 aug 96: Erik.Devriendt@te6.siemens.be
  23    added support for shared memory implementation of share mode locking
  24
  25    21-Jul-1998: rsharpe@ns.aus.com (Richard Sharpe)
  26    Added -L (locks only) -S (shares only) flags and code
  27
  28 */
  29
  30 /*
  31  * This program reports current SMB connections
  32  */
  33
  34 #include "includes.h"
  35
  36 #define SMB_MAXPIDS             2048
  37 static uid_t            Ucrit_uid = 0;               /* added by OH */
  38 static pid_t            Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  39 static int              Ucrit_MaxPid=0;                    /* added by OH */
  40 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  41
  42 static int verbose, brief;
  43 static int            shares_only = 0;            /* Added by RJS */
  44 static int            locks_only  = 0;            /* Added by RJS */
  45 static BOOL processes_only=False;
  46 static int show_brl;
  47 static BOOL numeric_only = False;
  48
  49 const char *username = NULL;
  50
  51 extern BOOL status_profile_dump(BOOL be_verbose);
  52 extern BOOL status_profile_rates(BOOL be_verbose);
  53
  54 /* added by OH */
  55 static void Ucrit_addUid(uid_t uid)
  56 {
  57         Ucrit_uid = uid;
  58         Ucrit_IsActive = 1;
  59 }
  60
  61 static unsigned int Ucrit_checkUid(uid_t uid)
  62 {
  63         if ( !Ucrit_IsActive )
  64                 return 1;
  65
  66         if ( uid == Ucrit_uid )
  67                 return 1;
  68
  69         return 0;
  70 }
  71
  72 static unsigned int Ucrit_checkPid(pid_t pid)
  73 {
  74         int i;
  75
  76         if ( !Ucrit_IsActive )
  77                 return 1;
  78
  79         for (i=0;i<Ucrit_MaxPid;i++) {
  80                 if( pid == Ucrit_pid[i] )
  81                         return 1;
  82         }
  83
  84         return 0;
  85 }
  86
  87 static BOOL Ucrit_addPid( pid_t pid )
  88 {
  89         if ( !Ucrit_IsActive )
  90                 return True;
  91
  92         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
  93                 d_printf("ERROR: More than %d pids for user %s!\n",
  94                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
  95
  96                 return False;
  97         }
  98
  99         Ucrit_pid[Ucrit_MaxPid++] = pid;
 100
 101         return True;
 102 }
 103
 104 static void print_share_mode(const struct share_mode_entry *e,
 105                              const char *sharepath,
 106                              const char *fname,
 107                              void *dummy)
 108 {
 109         static int count;
 110
 111         if (!is_valid_share_mode_entry(e)) {
 112                 return;
 113         }
 114
 115         if (count==0) {
 116                 d_printf("Locked files:\n");
 117                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 118                 d_printf("--------------------------------------------------------------------------------------------------\n");
 119         }
 120         count++;
 121
 122         if (Ucrit_checkPid(procid_to_pid(&e->pid))) {
 123                 d_printf("%-11s  ",procid_str_static(&e->pid));
 124                 d_printf("%-9u  ", (unsigned int)e->uid);
 125                 switch (map_share_mode_to_deny_mode(e->share_access,
 126                                                     e->private_options)) {
 127                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 128                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 129                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 130                         case DENY_READ: d_printf("DENY_READ  "); break;
 131                         case DENY_WRITE:printf("DENY_WRITE "); break;
 132                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 133                         default: {
 134                                 d_printf("unknown-please report ! "
 135                                          "e->share_access = 0x%x, "
 136                                          "e->private_options = 0x%x\n",
 137                                          (unsigned int)e->share_access,
 138                                          (unsigned int)e->private_options );
 139                                 break;
 140                         }
 141                 }
 142                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 143                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 144                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 145                         d_printf("RDWR       ");
 146                 } else if (e->access_mask & FILE_WRITE_DATA) {
 147                         d_printf("WRONLY     ");
 148                 } else {
 149                         d_printf("RDONLY     ");
 150                 }
 151
 152                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 153                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 154                         d_printf("EXCLUSIVE+BATCH ");
 155                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 156                         d_printf("EXCLUSIVE       ");
 157                 } else if (e->op_type & BATCH_OPLOCK) {
 158                         d_printf("BATCH           ");
 159                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 160                         d_printf("LEVEL_II        ");
 161                 } else {
 162                         d_printf("NONE            ");
 163                 }
 164
 165                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 166         }
 167 }
 168
 169 static void print_brl(SMB_DEV_T dev,
 170                         SMB_INO_T ino,
 171                         struct process_id pid,
 172                         enum brl_type lock_type,
 173                         enum brl_flavour lock_flav,
 174                         br_off start,
 175                         br_off size)
 176 {
 177         static int count;
 178         if (count==0) {
 179                 d_printf("Byte range locks:\n");
 180                 d_printf("   Pid     dev:inode  R/W      start        size\n");
 181                 d_printf("------------------------------------------------\n");
 182         }
 183         count++;
 184
 185         d_printf("%8s   %05x:%05x    %s  %9.0f   %9.0f\n",
 186                procid_str_static(&pid), (int)dev, (int)ino,
 187                lock_type==READ_LOCK?"R":"W",
 188                (double)start, (double)size);
 189 }
 190
 191 static int traverse_fn1(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void *state)
 192 {
 193         struct connections_data crec;
 194
 195         if (dbuf.dsize != sizeof(crec))
 196                 return 0;
 197
 198         memcpy(&crec, dbuf.dptr, sizeof(crec));
 199
 200         if (crec.cnum == -1)
 201                 return 0;
 202
 203         if (!process_exists(crec.pid) || !Ucrit_checkUid(crec.uid)) {
 204                 return 0;
 205         }
 206
 207         d_printf("%-10s   %s   %-12s  %s",
 208                crec.servicename,procid_str_static(&crec.pid),
 209                crec.machine,
 210                time_to_asc(crec.start));
 211
 212         return 0;
 213 }
 214
 215 static int traverse_sessionid(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf, void *state)
 216 {
 217         struct sessionid sessionid;
 218         fstring uid_str, gid_str;
 219
 220         if (dbuf.dsize != sizeof(sessionid))
 221                 return 0;
 222
 223         memcpy(&sessionid, dbuf.dptr, sizeof(sessionid));
 224
 225         if (!process_exists_by_pid(sessionid.pid) || !Ucrit_checkUid(sessionid.uid)) {
 226                 return 0;
 227         }
 228
 229         Ucrit_addPid( sessionid.pid );
 230
 231         fstr_sprintf(uid_str, "%d", sessionid.uid);
 232         fstr_sprintf(gid_str, "%d", sessionid.gid);
 233
 234         d_printf("%5d   %-12s  %-12s  %-12s (%s)\n",
 235                  (int)sessionid.pid,
 236                  numeric_only ? uid_str : uidtoname(sessionid.uid),
 237                  numeric_only ? gid_str : gidtoname(sessionid.gid),
 238                  sessionid.remote_machine, sessionid.hostname);
 239
 240         return 0;
 241 }
 242
 243
 244
 245
 246  int main(int argc, char *argv[])
 247 {
 248         int c;
 249         int profile_only = 0;
 250         TDB_CONTEXT *tdb;
 251         BOOL show_processes, show_locks, show_shares;
 252         poptContext pc;
 253         struct poptOption long_options[] = {
 254                 POPT_AUTOHELP
 255                 {"processes",   'p', POPT_ARG_NONE,     &processes_only, 'p', "Show processes only" },
 256                 {"verbose",     'v', POPT_ARG_NONE, &verbose, 'v', "Be verbose" },
 257                 {"locks",       'L', POPT_ARG_NONE,     &locks_only, 'L', "Show locks only" },
 258                 {"shares",      'S', POPT_ARG_NONE,     &shares_only, 'S', "Show shares only" },
 259                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 260                 {"brief",       'b', POPT_ARG_NONE,     &brief, 'b', "Be brief" },
 261                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 262                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 263                 {"byterange",   'B', POPT_ARG_NONE,     &show_brl, 'B', "Include byte range locks"},
 264                 {"numeric",     'n', POPT_ARG_NONE,     &numeric_only, 'n', "Numeric uid/gid"},
 265                 POPT_COMMON_SAMBA
 266                 POPT_TABLEEND
 267         };
 268
 269         sec_init();
 270         load_case_tables();
 271
 272         setup_logging(argv[0],True);
 273
 274         dbf = x_stderr;
 275
 276         if (getuid() != geteuid()) {
 277                 d_printf("smbstatus should not be run setuid\n");
 278                 return(1);
 279         }
 280
 281         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 282                             POPT_CONTEXT_KEEP_FIRST);
 283
 284         while ((c = poptGetNextOpt(pc)) != -1) {
 285                 switch (c) {
 286                 case 'u':
 287                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 288                         break;
 289                 case 'P':
 290                 case 'R':
 291                         profile_only = c;
 292                 }
 293         }
 294
 295         /* setup the flags based on the possible combincations */
 296
 297         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 298         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 299         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 300
 301         if ( username )
 302                 Ucrit_addUid( nametouid(username) );
 303
 304         if (verbose) {
 305                 d_printf("using configfile = %s\n", dyn_CONFIGFILE);
 306         }
 307
 308         if (!lp_load(dyn_CONFIGFILE,False,False,False,True)) {
 309                 fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
 310                 return (-1);
 311         }
 312
 313         switch (profile_only) {
 314                 case 'P':
 315                         /* Dump profile data */
 316                         return status_profile_dump(verbose);
 317                 case 'R':
 318                         /* Continuously display rate-converted data */
 319                         return status_profile_rates(verbose);
 320                 default:
 321                         break;
 322         }
 323
 324         if ( show_processes ) {
 325                 tdb = tdb_open_log(lock_path("sessionid.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 326                 if (!tdb) {
 327                         d_printf("sessionid.tdb not initialised\n");
 328                 } else {
 329                         d_printf("\nSamba version %s\n",SAMBA_VERSION_STRING);
 330                         d_printf("PID     Username      Group         Machine                        \n");
 331                         d_printf("-------------------------------------------------------------------\n");
 332
 333                         tdb_traverse(tdb, traverse_sessionid, NULL);
 334                         tdb_close(tdb);
 335                 }
 336
 337                 if (processes_only)
 338                         exit(0);
 339         }
 340
 341         if ( show_shares ) {
 342                 tdb = tdb_open_log(lock_path("connections.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 343                 if (!tdb) {
 344                         d_printf("%s not initialised\n", lock_path("connections.tdb"));
 345                         d_printf("This is normal if an SMB client has never connected to your server.\n");
 346                 }  else  {
 347                         if (verbose) {
 348                                 d_printf("Opened %s\n", lock_path("connections.tdb"));
 349                         }
 350
 351                         if (brief)
 352                                 exit(0);
 353
 354                         d_printf("\nService      pid     machine       Connected at\n");
 355                         d_printf("-------------------------------------------------------\n");
 356
 357                         tdb_traverse(tdb, traverse_fn1, NULL);
 358                         tdb_close(tdb);
 359
 360                         d_printf("\n");
 361                 }
 362
 363                 if ( shares_only )
 364                         exit(0);
 365         }
 366
 367         if ( show_locks ) {
 368                 int ret;
 369
 370                 tdb = tdb_open_log(lock_path("locking.tdb"), 0, TDB_DEFAULT, O_RDONLY, 0);
 371
 372                 if (!tdb) {
 373                         d_printf("%s not initialised\n", lock_path("locking.tdb"));
 374                         d_printf("This is normal if an SMB client has never connected to your server.\n");
 375                         exit(0);
 376                 } else {
 377                         tdb_close(tdb);
 378                 }
 379
 380                 if (!locking_init(1)) {
 381                         d_printf("Can't initialise locking module - exiting\n");
 382                         exit(1);
 383                 }
 384
 385                 ret = share_mode_forall(print_share_mode, NULL);
 386
 387                 if (ret == 0) {
 388                         d_printf("No locked files\n");
 389                 } else if (ret == -1) {
 390                         d_printf("locked file list truncated\n");
 391                 }
 392
 393                 d_printf("\n");
 394
 395                 if (show_brl) {
 396                         brl_forall(print_brl);
 397                 }
 398
 399                 locking_end();
 400         }
 401
 402         return (0);
 403 }