source/utils/net_status.c

   1 /*
   2    Samba Unix/Linux SMB client library
   3    net status command -- possible replacement for smbstatus
   4    Copyright (C) 2003 Volker Lendecke (vl@samba.org)
   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 #include "includes.h"
  21 #include "utils/net.h"
  22
  23 static int show_session(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf,
  24                         void *state)
  25 {
  26         BOOL *parseable = (BOOL *)state;
  27         struct sessionid sessionid;
  28
  29         if (dbuf.dsize != sizeof(sessionid))
  30                 return 0;
  31
  32         memcpy(&sessionid, dbuf.dptr, sizeof(sessionid));
  33
  34         if (!process_exists(sessionid.pid)) {
  35                 return 0;
  36         }
  37
  38         if (*parseable) {
  39                 d_printf("%d\\%s\\%s\\%s\\%s\n",
  40                          (int)sessionid.pid, uidtoname(sessionid.uid),
  41                          gidtoname(sessionid.gid),
  42                          sessionid.remote_machine, sessionid.hostname);
  43         } else {
  44                 d_printf("%5d   %-12s  %-12s  %-12s (%s)\n",
  45                          (int)sessionid.pid, uidtoname(sessionid.uid),
  46                          gidtoname(sessionid.gid),
  47                          sessionid.remote_machine, sessionid.hostname);
  48         }
  49
  50         return 0;
  51 }
  52
  53 static int net_status_sessions(int argc, const char **argv)
  54 {
  55         TDB_CONTEXT *tdb;
  56         BOOL parseable;
  57
  58         if (argc == 0) {
  59                 parseable = False;
  60         } else if ((argc == 1) && strequal(argv[0], "parseable")) {
  61                 parseable = True;
  62         } else {
  63                 return net_help_status(argc, argv);
  64         }
  65
  66         if (!parseable) {
  67                 d_printf("PID     Username      Group         Machine"
  68                          "                        \n");
  69                 d_printf("-------------------------------------------"
  70                          "------------------------\n");
  71         }
  72
  73         tdb = tdb_open_log(lock_path("sessionid.tdb"), 0,
  74                            TDB_DEFAULT, O_RDONLY, 0);
  75
  76         if (tdb == NULL) {
  77                 d_printf("%s not initialised\n", lock_path("sessionid.tdb"));
  78                 return -1;
  79         }
  80
  81         tdb_traverse(tdb, show_session, &parseable);
  82         tdb_close(tdb);
  83
  84         return 0;
  85 }
  86
  87 static int show_share(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf,
  88                       void *state)
  89 {
  90         struct connections_data crec;
  91
  92         if (dbuf.dsize != sizeof(crec))
  93                 return 0;
  94
  95         memcpy(&crec, dbuf.dptr, sizeof(crec));
  96
  97         if (crec.cnum == -1)
  98                 return 0;
  99
 100         if (!process_exists(crec.pid)) {
 101                 return 0;
 102         }
 103
 104         d_printf("%-10.10s   %5d   %-12s  %s",
 105                crec.name,(int)crec.pid,
 106                crec.machine,
 107                asctime(LocalTime(&crec.start)));
 108
 109         return 0;
 110 }
 111
 112 struct sessionids {
 113         int num_entries;
 114         struct sessionid *entries;
 115 };
 116
 117 static int collect_pid(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf,
 118                        void *state)
 119 {
 120         struct sessionids *ids = (struct sessionids *)state;
 121         struct sessionid sessionid;
 122
 123         if (dbuf.dsize != sizeof(sessionid))
 124                 return 0;
 125
 126         memcpy(&sessionid, dbuf.dptr, sizeof(sessionid));
 127
 128         if (!process_exists(sessionid.pid))
 129                 return 0;
 130
 131         ids->num_entries += 1;
 132         ids->entries = Realloc(ids->entries,
 133                                sizeof(struct sessionid) * ids->num_entries);
 134         ids->entries[ids->num_entries-1] = sessionid;
 135
 136         return 0;
 137 }
 138
 139 static int show_share_parseable(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf,
 140                                 void *state)
 141 {
 142         struct sessionids *ids = (struct sessionids *)state;
 143         struct connections_data crec;
 144         int i;
 145         BOOL guest = True;
 146
 147         if (dbuf.dsize != sizeof(crec))
 148                 return 0;
 149
 150         memcpy(&crec, dbuf.dptr, sizeof(crec));
 151
 152         if (crec.cnum == -1)
 153                 return 0;
 154
 155         if (!process_exists(crec.pid)) {
 156                 return 0;
 157         }
 158
 159         for (i=0; i<ids->num_entries; i++) {
 160                 if (ids->entries[i].pid == crec.pid) {
 161                         guest = False;
 162                         break;
 163                 }
 164         }
 165
 166         d_printf("%s\\%d\\%s\\%s\\%s\\%s\\%s",
 167                  crec.name,(int)crec.pid,
 168                  guest ? "" : uidtoname(ids->entries[i].uid),
 169                  guest ? "" : gidtoname(ids->entries[i].gid),
 170                  crec.machine,
 171                  guest ? "" : ids->entries[i].hostname,
 172                  asctime(LocalTime(&crec.start)));
 173
 174         return 0;
 175 }
 176
 177 static int net_status_shares_parseable(int argc, const char **argv)
 178 {
 179         struct sessionids ids;
 180         TDB_CONTEXT *tdb;
 181
 182         ids.num_entries = 0;
 183         ids.entries = NULL;
 184
 185         tdb = tdb_open_log(lock_path("sessionid.tdb"), 0,
 186                            TDB_DEFAULT, O_RDONLY, 0);
 187
 188         if (tdb == NULL) {
 189                 d_printf("%s not initialised\n", lock_path("sessionid.tdb"));
 190                 return -1;
 191         }
 192
 193         tdb_traverse(tdb, collect_pid, &ids);
 194         tdb_close(tdb);
 195
 196         tdb = tdb_open_log(lock_path("connections.tdb"), 0,
 197                            TDB_DEFAULT, O_RDONLY, 0);
 198
 199         if (tdb == NULL) {
 200                 d_printf("%s not initialised\n", lock_path("connections.tdb"));
 201                 d_printf("This is normal if no SMB client has ever connected "
 202                          "to your server.\n");
 203                 return -1;
 204         }
 205
 206         tdb_traverse(tdb, show_share_parseable, &ids);
 207         tdb_close(tdb);
 208
 209         SAFE_FREE(ids.entries);
 210
 211         return 0;
 212 }
 213
 214 static int net_status_shares(int argc, const char **argv)
 215 {
 216         TDB_CONTEXT *tdb;
 217
 218         if (argc == 0) {
 219
 220                 d_printf("\nService      pid     machine       "
 221                          "Connected at\n");
 222                 d_printf("-------------------------------------"
 223                          "------------------\n");
 224
 225                 tdb = tdb_open_log(lock_path("connections.tdb"), 0,
 226                                    TDB_DEFAULT, O_RDONLY, 0);
 227
 228                 if (tdb == NULL) {
 229                         d_printf("%s not initialised\n",
 230                                  lock_path("connections.tdb"));
 231                         d_printf("This is normal if no SMB client has ever "
 232                                  "connected to your server.\n");
 233                         return -1;
 234                 }
 235
 236                 tdb_traverse(tdb, show_share, NULL);
 237                 tdb_close(tdb);
 238
 239                 return 0;
 240         }
 241
 242         if ((argc != 1) || !strequal(argv[0], "parseable")) {
 243                 return net_help_status(argc, argv);
 244         }
 245
 246         return net_status_shares_parseable(argc, argv);
 247 }
 248
 249 int net_status(int argc, const char **argv)
 250 {
 251         struct functable func[] = {
 252                 {"sessions", net_status_sessions},
 253                 {"shares", net_status_shares},
 254                 {NULL, NULL}
 255         };
 256         return net_run_function(argc, argv, func, net_help_status);
 257 }