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 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
  35 #define SMB_MAXPIDS             2048
  36 static uid_t            Ucrit_uid = 0;               /* added by OH */
  37 static struct server_id Ucrit_pid[SMB_MAXPIDS];  /* Ugly !!! */   /* added by OH */
  38 static int              Ucrit_MaxPid=0;                    /* added by OH */
  39 static unsigned int     Ucrit_IsActive = 0;                /* added by OH */
  40
  41 static int verbose, brief;
  42 static int            shares_only = 0;            /* Added by RJS */
  43 static int            locks_only  = 0;            /* Added by RJS */
  44 static BOOL processes_only=False;
  45 static int show_brl;
  46 static BOOL numeric_only = False;
  47
  48 const char *username = NULL;
  49
  50 extern BOOL status_profile_dump(BOOL be_verbose);
  51 extern BOOL status_profile_rates(BOOL be_verbose);
  52
  53 /* added by OH */
  54 static void Ucrit_addUid(uid_t uid)
  55 {
  56         Ucrit_uid = uid;
  57         Ucrit_IsActive = 1;
  58 }
  59
  60 static unsigned int Ucrit_checkUid(uid_t uid)
  61 {
  62         if ( !Ucrit_IsActive )
  63                 return 1;
  64
  65         if ( uid == Ucrit_uid )
  66                 return 1;
  67
  68         return 0;
  69 }
  70
  71 static unsigned int Ucrit_checkPid(struct server_id pid)
  72 {
  73         int i;
  74
  75         if ( !Ucrit_IsActive )
  76                 return 1;
  77
  78         for (i=0;i<Ucrit_MaxPid;i++) {
  79                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  80                         return 1;
  81         }
  82
  83         return 0;
  84 }
  85
  86 static BOOL Ucrit_addPid( struct server_id pid )
  87 {
  88         if ( !Ucrit_IsActive )
  89                 return True;
  90
  91         if ( Ucrit_MaxPid >= SMB_MAXPIDS ) {
  92                 d_printf("ERROR: More than %d pids for user %s!\n",
  93                          SMB_MAXPIDS, uidtoname(Ucrit_uid));
  94
  95                 return False;
  96         }
  97
  98         Ucrit_pid[Ucrit_MaxPid++] = pid;
  99
 100         return True;
 101 }
 102
 103 static void print_share_mode(const struct share_mode_entry *e,
 104                              const char *sharepath,
 105                              const char *fname,
 106                              void *dummy)
 107 {
 108         static int count;
 109
 110         if (!is_valid_share_mode_entry(e)) {
 111                 return;
 112         }
 113
 114         if (count==0) {
 115                 d_printf("Locked files:\n");
 116                 d_printf("Pid          Uid        DenyMode   Access      R/W        Oplock           SharePath   Name   Time\n");
 117                 d_printf("--------------------------------------------------------------------------------------------------\n");
 118         }
 119         count++;
 120
 121         if (Ucrit_checkPid(e->pid)) {
 122                 d_printf("%-11s  ",procid_str_static(&e->pid));
 123                 d_printf("%-9u  ", (unsigned int)e->uid);
 124                 switch (map_share_mode_to_deny_mode(e->share_access,
 125                                                     e->private_options)) {
 126                         case DENY_NONE: d_printf("DENY_NONE  "); break;
 127                         case DENY_ALL:  d_printf("DENY_ALL   "); break;
 128                         case DENY_DOS:  d_printf("DENY_DOS   "); break;
 129                         case DENY_READ: d_printf("DENY_READ  "); break;
 130                         case DENY_WRITE:printf("DENY_WRITE "); break;
 131                         case DENY_FCB:  d_printf("DENY_FCB "); break;
 132                         default: {
 133                                 d_printf("unknown-please report ! "
 134                                          "e->share_access = 0x%x, "
 135                                          "e->private_options = 0x%x\n",
 136                                          (unsigned int)e->share_access,
 137                                          (unsigned int)e->private_options );
 138                                 break;
 139                         }
 140                 }
 141                 d_printf("0x%-8x  ",(unsigned int)e->access_mask);
 142                 if ((e->access_mask & (FILE_READ_DATA|FILE_WRITE_DATA))==
 143                                 (FILE_READ_DATA|FILE_WRITE_DATA)) {
 144                         d_printf("RDWR       ");
 145                 } else if (e->access_mask & FILE_WRITE_DATA) {
 146                         d_printf("WRONLY     ");
 147                 } else {
 148                         d_printf("RDONLY     ");
 149                 }
 150
 151                 if((e->op_type & (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) ==
 152                                         (EXCLUSIVE_OPLOCK|BATCH_OPLOCK)) {
 153                         d_printf("EXCLUSIVE+BATCH ");
 154                 } else if (e->op_type & EXCLUSIVE_OPLOCK) {
 155                         d_printf("EXCLUSIVE       ");
 156                 } else if (e->op_type & BATCH_OPLOCK) {
 157                         d_printf("BATCH           ");
 158                 } else if (e->op_type & LEVEL_II_OPLOCK) {
 159                         d_printf("LEVEL_II        ");
 160                 } else {
 161                         d_printf("NONE            ");
 162                 }
 163
 164                 d_printf(" %s   %s   %s",sharepath, fname, time_to_asc((time_t)e->time.tv_sec));
 165         }
 166 }
 167
 168 static void print_brl(struct file_id id,
 169                         struct server_id pid,
 170                         enum brl_type lock_type,
 171                         enum brl_flavour lock_flav,
 172                         br_off start,
 173                         br_off size,
 174                         void *private_data)
 175 {
 176         static int count;
 177         int i;
 178         static const struct {
 179                 enum brl_type lock_type;
 180                 const char *desc;
 181         } lock_types[] = {
 182                 { READ_LOCK, "R" },
 183                 { WRITE_LOCK, "W" },
 184                 { PENDING_READ_LOCK, "PR" },
 185                 { PENDING_WRITE_LOCK, "PW" },
 186                 { UNLOCK_LOCK, "U" }
 187         };
 188         const char *desc="X";
 189         if (count==0) {
 190                 d_printf("Byte range locks:\n");
 191                 d_printf("   Pid     dev:inode  R/W      start        size\n");
 192                 d_printf("------------------------------------------------\n");
 193         }
 194         count++;
 195
 196         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 197                 if (lock_type == lock_types[i].lock_type) {
 198                         desc = lock_types[i].desc;
 199                 }
 200         }
 201
 202         d_printf("%8s   %s    %2s  %9.0f   %9.0f\n",
 203                  procid_str_static(&pid), file_id_static_string(&id),
 204                  desc,
 205                  (double)start, (double)size);
 206 }
 207
 208 static int traverse_fn1(struct db_record *rec,
 209                         const struct connections_key *key,
 210                         const struct connections_data *crec,
 211                         void *state)
 212 {
 213         if (crec->cnum == -1)
 214                 return 0;
 215
 216         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 217                 return 0;
 218         }
 219
 220         d_printf("%-10s   %s   %-12s  %s",
 221                  crec->servicename,procid_str_static(&crec->pid),
 222                  crec->machine,
 223                  time_to_asc(crec->start));
 224
 225         return 0;
 226 }
 227
 228 static int traverse_sessionid(struct db_record *db, void *state)
 229 {
 230         struct sessionid sessionid;
 231         fstring uid_str, gid_str;
 232
 233         if (db->value.dsize != sizeof(sessionid))
 234                 return 0;
 235
 236         memcpy(&sessionid, db->value.dptr, sizeof(sessionid));
 237
 238         if (!process_exists(sessionid.pid) || !Ucrit_checkUid(sessionid.uid)) {
 239                 return 0;
 240         }
 241
 242         Ucrit_addPid( sessionid.pid );
 243
 244         fstr_sprintf(uid_str, "%d", sessionid.uid);
 245         fstr_sprintf(gid_str, "%d", sessionid.gid);
 246
 247         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 248                  procid_str_static(&sessionid.pid),
 249                  numeric_only ? uid_str : uidtoname(sessionid.uid),
 250                  numeric_only ? gid_str : gidtoname(sessionid.gid),
 251                  sessionid.remote_machine, sessionid.hostname);
 252
 253         return 0;
 254 }
 255
 256
 257
 258
 259  int main(int argc, char *argv[])
 260 {
 261         int c;
 262         int profile_only = 0;
 263         BOOL show_processes, show_locks, show_shares;
 264         poptContext pc;
 265         struct poptOption long_options[] = {
 266                 POPT_AUTOHELP
 267                 {"processes",   'p', POPT_ARG_NONE,     &processes_only, 'p', "Show processes only" },
 268                 {"verbose",     'v', POPT_ARG_NONE, &verbose, 'v', "Be verbose" },
 269                 {"locks",       'L', POPT_ARG_NONE,     &locks_only, 'L', "Show locks only" },
 270                 {"shares",      'S', POPT_ARG_NONE,     &shares_only, 'S', "Show shares only" },
 271                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 272                 {"brief",       'b', POPT_ARG_NONE,     &brief, 'b', "Be brief" },
 273                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 274                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 275                 {"byterange",   'B', POPT_ARG_NONE,     &show_brl, 'B', "Include byte range locks"},
 276                 {"numeric",     'n', POPT_ARG_NONE,     &numeric_only, 'n', "Numeric uid/gid"},
 277                 POPT_COMMON_SAMBA
 278                 POPT_TABLEEND
 279         };
 280
 281         sec_init();
 282         load_case_tables();
 283
 284         setup_logging(argv[0],True);
 285
 286         dbf = x_stderr;
 287
 288         if (getuid() != geteuid()) {
 289                 d_printf("smbstatus should not be run setuid\n");
 290                 return(1);
 291         }
 292
 293         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 294                             POPT_CONTEXT_KEEP_FIRST);
 295
 296         while ((c = poptGetNextOpt(pc)) != -1) {
 297                 switch (c) {
 298                 case 'u':
 299                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 300                         break;
 301                 case 'P':
 302                 case 'R':
 303                         profile_only = c;
 304                 }
 305         }
 306
 307         /* setup the flags based on the possible combincations */
 308
 309         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 310         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 311         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 312
 313         if ( username )
 314                 Ucrit_addUid( nametouid(username) );
 315
 316         if (verbose) {
 317                 d_printf("using configfile = %s\n", dyn_CONFIGFILE);
 318         }
 319
 320         if (!lp_load(dyn_CONFIGFILE,False,False,False,True)) {
 321                 fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
 322                 return (-1);
 323         }
 324
 325         /*
 326          * This implicitly initializes the global ctdbd connection, usable by
 327          * the db_open() calls further down.
 328          */
 329
 330         messaging_init(NULL, procid_self(), event_context_init(NULL));
 331
 332         switch (profile_only) {
 333                 case 'P':
 334                         /* Dump profile data */
 335                         return status_profile_dump(verbose);
 336                 case 'R':
 337                         /* Continuously display rate-converted data */
 338                         return status_profile_rates(verbose);
 339                 default:
 340                         break;
 341         }
 342
 343         if ( show_processes ) {
 344                 struct db_context *db;
 345                 db = db_open(NULL, lock_path("sessionid.tdb"), 0,
 346                              TDB_DEFAULT, O_RDWR, 0644);
 347                 if (!db) {
 348                         d_printf("sessionid.tdb not initialised\n");
 349                 } else {
 350                         d_printf("\nSamba version %s\n",SAMBA_VERSION_STRING);
 351                         d_printf("PID     Username      Group         Machine                        \n");
 352                         d_printf("-------------------------------------------------------------------\n");
 353
 354                         db->traverse_read(db, traverse_sessionid, NULL);
 355                         talloc_free(db);
 356                 }
 357
 358                 if (processes_only)
 359                         exit(0);
 360         }
 361
 362         if ( show_shares ) {
 363                 if (verbose) {
 364                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 365                 }
 366
 367                 if (brief)
 368                         exit(0);
 369
 370                 d_printf("\nService      pid     machine       Connected at\n");
 371                 d_printf("-------------------------------------------------------\n");
 372
 373                 connections_forall(traverse_fn1, NULL);
 374
 375                 d_printf("\n");
 376
 377                 if ( shares_only )
 378                         exit(0);
 379         }
 380
 381         if ( show_locks ) {
 382                 int ret;
 383
 384                 if (!locking_init(1)) {
 385                         d_printf("Can't initialise locking module - exiting\n");
 386                         exit(1);
 387                 }
 388
 389                 ret = share_mode_forall(print_share_mode, NULL);
 390
 391                 if (ret == 0) {
 392                         d_printf("No locked files\n");
 393                 } else if (ret == -1) {
 394                         d_printf("locked file list truncated\n");
 395                 }
 396
 397                 d_printf("\n");
 398
 399                 if (show_brl) {
 400                         brl_forall(print_brl, NULL);
 401                 }
 402
 403                 locking_end();
 404         }
 405
 406         return (0);
 407 }