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 struct server_id 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(struct server_id pid)
  73 {
  74         int i;
  75
  76         if ( !Ucrit_IsActive )
  77                 return 1;
  78
  79         for (i=0;i<Ucrit_MaxPid;i++) {
  80                 if (cluster_id_equal(&pid, &Ucrit_pid[i]))
  81                         return 1;
  82         }
  83
  84         return 0;
  85 }
  86
  87 static BOOL Ucrit_addPid( struct server_id 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(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(struct file_id id,
 170                         struct server_id pid,
 171                         enum brl_type lock_type,
 172                         enum brl_flavour lock_flav,
 173                         br_off start,
 174                         br_off size,
 175                         void *private_data)
 176 {
 177         static int count;
 178         int i;
 179         static const struct {
 180                 enum brl_type lock_type;
 181                 const char *desc;
 182         } lock_types[] = {
 183                 { READ_LOCK, "R" },
 184                 { WRITE_LOCK, "W" },
 185                 { PENDING_READ_LOCK, "PR" },
 186                 { PENDING_WRITE_LOCK, "PW" },
 187                 { UNLOCK_LOCK, "U" }
 188         };
 189         const char *desc="X";
 190         if (count==0) {
 191                 d_printf("Byte range locks:\n");
 192                 d_printf("   Pid     dev:inode  R/W      start        size\n");
 193                 d_printf("------------------------------------------------\n");
 194         }
 195         count++;
 196
 197         for (i=0;i<ARRAY_SIZE(lock_types);i++) {
 198                 if (lock_type == lock_types[i].lock_type) {
 199                         desc = lock_types[i].desc;
 200                 }
 201         }
 202
 203         d_printf("%8s   %s    %2s  %9.0f   %9.0f\n",
 204                  procid_str_static(&pid), file_id_static_string(&id),
 205                  desc,
 206                  (double)start, (double)size);
 207 }
 208
 209 static int traverse_fn1(struct db_record *rec,
 210                         const struct connections_key *key,
 211                         const struct connections_data *crec,
 212                         void *state)
 213 {
 214         if (crec->cnum == -1)
 215                 return 0;
 216
 217         if (!process_exists(crec->pid) || !Ucrit_checkUid(crec->uid)) {
 218                 return 0;
 219         }
 220
 221         d_printf("%-10s   %s   %-12s  %s",
 222                  crec->servicename,procid_str_static(&crec->pid),
 223                  crec->machine,
 224                  time_to_asc(crec->start));
 225
 226         return 0;
 227 }
 228
 229 static int traverse_sessionid(struct db_record *db, void *state)
 230 {
 231         struct sessionid sessionid;
 232         fstring uid_str, gid_str;
 233
 234         if (db->value.dsize != sizeof(sessionid))
 235                 return 0;
 236
 237         memcpy(&sessionid, db->value.dptr, sizeof(sessionid));
 238
 239         if (!process_exists(sessionid.pid) || !Ucrit_checkUid(sessionid.uid)) {
 240                 return 0;
 241         }
 242
 243         Ucrit_addPid( sessionid.pid );
 244
 245         fstr_sprintf(uid_str, "%d", sessionid.uid);
 246         fstr_sprintf(gid_str, "%d", sessionid.gid);
 247
 248         d_printf("%-7s   %-12s  %-12s  %-12s (%s)\n",
 249                  procid_str_static(&sessionid.pid),
 250                  numeric_only ? uid_str : uidtoname(sessionid.uid),
 251                  numeric_only ? gid_str : gidtoname(sessionid.gid),
 252                  sessionid.remote_machine, sessionid.hostname);
 253
 254         return 0;
 255 }
 256
 257
 258
 259
 260  int main(int argc, char *argv[])
 261 {
 262         int c;
 263         int profile_only = 0;
 264         BOOL show_processes, show_locks, show_shares;
 265         poptContext pc;
 266         struct poptOption long_options[] = {
 267                 POPT_AUTOHELP
 268                 {"processes",   'p', POPT_ARG_NONE,     &processes_only, 'p', "Show processes only" },
 269                 {"verbose",     'v', POPT_ARG_NONE, &verbose, 'v', "Be verbose" },
 270                 {"locks",       'L', POPT_ARG_NONE,     &locks_only, 'L', "Show locks only" },
 271                 {"shares",      'S', POPT_ARG_NONE,     &shares_only, 'S', "Show shares only" },
 272                 {"user",        'u', POPT_ARG_STRING,   &username, 'u', "Switch to user" },
 273                 {"brief",       'b', POPT_ARG_NONE,     &brief, 'b', "Be brief" },
 274                 {"profile",     'P', POPT_ARG_NONE, NULL, 'P', "Do profiling" },
 275                 {"profile-rates", 'R', POPT_ARG_NONE, NULL, 'R', "Show call rates" },
 276                 {"byterange",   'B', POPT_ARG_NONE,     &show_brl, 'B', "Include byte range locks"},
 277                 {"numeric",     'n', POPT_ARG_NONE,     &numeric_only, 'n', "Numeric uid/gid"},
 278                 POPT_COMMON_SAMBA
 279                 POPT_TABLEEND
 280         };
 281
 282         sec_init();
 283         load_case_tables();
 284
 285         setup_logging(argv[0],True);
 286
 287         dbf = x_stderr;
 288
 289         if (getuid() != geteuid()) {
 290                 d_printf("smbstatus should not be run setuid\n");
 291                 return(1);
 292         }
 293
 294         pc = poptGetContext(NULL, argc, (const char **) argv, long_options,
 295                             POPT_CONTEXT_KEEP_FIRST);
 296
 297         while ((c = poptGetNextOpt(pc)) != -1) {
 298                 switch (c) {
 299                 case 'u':
 300                         Ucrit_addUid(nametouid(poptGetOptArg(pc)));
 301                         break;
 302                 case 'P':
 303                 case 'R':
 304                         profile_only = c;
 305                 }
 306         }
 307
 308         /* setup the flags based on the possible combincations */
 309
 310         show_processes = !(shares_only || locks_only || profile_only) || processes_only;
 311         show_locks     = !(shares_only || processes_only || profile_only) || locks_only;
 312         show_shares    = !(processes_only || locks_only || profile_only) || shares_only;
 313
 314         if ( username )
 315                 Ucrit_addUid( nametouid(username) );
 316
 317         if (verbose) {
 318                 d_printf("using configfile = %s\n", dyn_CONFIGFILE);
 319         }
 320
 321         if (!lp_load(dyn_CONFIGFILE,False,False,False,True)) {
 322                 fprintf(stderr, "Can't load %s - run testparm to debug it\n", dyn_CONFIGFILE);
 323                 return (-1);
 324         }
 325
 326         /*
 327          * This implicitly initializes the global ctdbd connection, usable by
 328          * the db_open() calls further down.
 329          */
 330
 331         messaging_init(NULL, procid_self(), event_context_init(NULL));
 332
 333         switch (profile_only) {
 334                 case 'P':
 335                         /* Dump profile data */
 336                         return status_profile_dump(verbose);
 337                 case 'R':
 338                         /* Continuously display rate-converted data */
 339                         return status_profile_rates(verbose);
 340                 default:
 341                         break;
 342         }
 343
 344         if ( show_processes ) {
 345                 struct db_context *db;
 346                 db = db_open(NULL, lock_path("sessionid.tdb"), 0,
 347                              TDB_DEFAULT, O_RDWR, 0644);
 348                 if (!db) {
 349                         d_printf("sessionid.tdb not initialised\n");
 350                 } else {
 351                         d_printf("\nSamba version %s\n",SAMBA_VERSION_STRING);
 352                         d_printf("PID     Username      Group         Machine                        \n");
 353                         d_printf("-------------------------------------------------------------------\n");
 354
 355                         db->traverse_read(db, traverse_sessionid, NULL);
 356                         talloc_free(db);
 357                 }
 358
 359                 if (processes_only)
 360                         exit(0);
 361         }
 362
 363         if ( show_shares ) {
 364                 if (verbose) {
 365                         d_printf("Opened %s\n", lock_path("connections.tdb"));
 366                 }
 367
 368                 if (brief)
 369                         exit(0);
 370
 371                 d_printf("\nService      pid     machine       Connected at\n");
 372                 d_printf("-------------------------------------------------------\n");
 373
 374                 connections_forall(traverse_fn1, NULL);
 375
 376                 d_printf("\n");
 377
 378                 if ( shares_only )
 379                         exit(0);
 380         }
 381
 382         if ( show_locks ) {
 383                 int ret;
 384
 385                 if (!locking_init(1)) {
 386                         d_printf("Can't initialise locking module - exiting\n");
 387                         exit(1);
 388                 }
 389
 390                 ret = share_mode_forall(print_share_mode, NULL);
 391
 392                 if (ret == 0) {
 393                         d_printf("No locked files\n");
 394                 } else if (ret == -1) {
 395                         d_printf("locked file list truncated\n");
 396                 }
 397
 398                 d_printf("\n");
 399
 400                 if (show_brl) {
 401                         brl_forall(print_brl, NULL);
 402                 }
 403
 404                 locking_end();
 405         }
 406
 407         return (0);
 408 }