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 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 #include "includes.h"
  20 #include "utils/net.h"
  21
  22 int net_status_usage(struct net_context *c, int argc, const char **argv)
  23 {
  24         d_printf("  net status sessions [parseable] "
  25                  "Show list of open sessions\n");
  26         d_printf("  net status shares [parseable]   "
  27                  "Show list of open shares\n");
  28         return -1;
  29 }
  30
  31 static int show_session(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf,
  32                         void *state)
  33 {
  34         bool *parseable = (bool *)state;
  35         struct sessionid sessionid;
  36
  37         if (dbuf.dsize != sizeof(sessionid))
  38                 return 0;
  39
  40         memcpy(&sessionid, dbuf.dptr, sizeof(sessionid));
  41
  42         if (!process_exists(sessionid.pid)) {
  43                 return 0;
  44         }
  45
  46         if (*parseable) {
  47                 d_printf("%s\\%s\\%s\\%s\\%s\n",
  48                          procid_str_static(&sessionid.pid), uidtoname(sessionid.uid),
  49                          gidtoname(sessionid.gid),
  50                          sessionid.remote_machine, sessionid.hostname);
  51         } else {
  52                 d_printf("%7s   %-12s  %-12s  %-12s (%s)\n",
  53                          procid_str_static(&sessionid.pid), uidtoname(sessionid.uid),
  54                          gidtoname(sessionid.gid),
  55                          sessionid.remote_machine, sessionid.hostname);
  56         }
  57
  58         return 0;
  59 }
  60
  61 static int net_status_sessions(struct net_context *c, int argc, const char **argv)
  62 {
  63         TDB_CONTEXT *tdb;
  64         bool parseable;
  65
  66         if (c->display_usage) {
  67                 d_printf("Usage:\n"
  68                          "net status sessions [parseable]\n"
  69                          "    Display open user sessions.\n"
  70                          "    If parseable is specified, output is machine-"
  71                          "readable.\n");
  72                 return 0;
  73         }
  74
  75         if (argc == 0) {
  76                 parseable = false;
  77         } else if ((argc == 1) && strequal(argv[0], "parseable")) {
  78                 parseable = true;
  79         } else {
  80                 return net_status_usage(c, argc, argv);
  81         }
  82
  83         if (!parseable) {
  84                 d_printf("PID     Username      Group         Machine"
  85                          "                        \n");
  86                 d_printf("-------------------------------------------"
  87                          "------------------------\n");
  88         }
  89
  90         tdb = tdb_open_log(lock_path("sessionid.tdb"), 0,
  91                            TDB_DEFAULT, O_RDONLY, 0);
  92
  93         if (tdb == NULL) {
  94                 d_fprintf(stderr, "%s not initialised\n", lock_path("sessionid.tdb"));
  95                 return -1;
  96         }
  97
  98         tdb_traverse(tdb, show_session, &parseable);
  99         tdb_close(tdb);
 100
 101         return 0;
 102 }
 103
 104 static int show_share(struct db_record *rec,
 105                       const struct connections_key *key,
 106                       const struct connections_data *crec,
 107                       void *state)
 108 {
 109         if (crec->cnum == -1)
 110                 return 0;
 111
 112         if (!process_exists(crec->pid)) {
 113                 return 0;
 114         }
 115
 116         d_printf("%-10.10s   %s   %-12s  %s",
 117                crec->servicename, procid_str_static(&crec->pid),
 118                crec->machine,
 119                time_to_asc(crec->start));
 120
 121         return 0;
 122 }
 123
 124 struct sessionids {
 125         int num_entries;
 126         struct sessionid *entries;
 127 };
 128
 129 static int collect_pid(TDB_CONTEXT *tdb, TDB_DATA kbuf, TDB_DATA dbuf,
 130                        void *state)
 131 {
 132         struct sessionids *ids = (struct sessionids *)state;
 133         struct sessionid sessionid;
 134
 135         if (dbuf.dsize != sizeof(sessionid))
 136                 return 0;
 137
 138         memcpy(&sessionid, dbuf.dptr, sizeof(sessionid));
 139
 140         if (!process_exists(sessionid.pid))
 141                 return 0;
 142
 143         ids->num_entries += 1;
 144         ids->entries = SMB_REALLOC_ARRAY(ids->entries, struct sessionid, ids->num_entries);
 145         if (!ids->entries) {
 146                 ids->num_entries = 0;
 147                 return 0;
 148         }
 149         ids->entries[ids->num_entries-1] = sessionid;
 150
 151         return 0;
 152 }
 153
 154 static int show_share_parseable(struct db_record *rec,
 155                                 const struct connections_key *key,
 156                                 const struct connections_data *crec,
 157                                 void *state)
 158 {
 159         struct sessionids *ids = (struct sessionids *)state;
 160         int i;
 161         bool guest = true;
 162
 163         if (crec->cnum == -1)
 164                 return 0;
 165
 166         if (!process_exists(crec->pid)) {
 167                 return 0;
 168         }
 169
 170         for (i=0; i<ids->num_entries; i++) {
 171                 struct server_id id = ids->entries[i].pid;
 172                 if (procid_equal(&id, &crec->pid)) {
 173                         guest = false;
 174                         break;
 175                 }
 176         }
 177
 178         d_printf("%s\\%s\\%s\\%s\\%s\\%s\\%s",
 179                  crec->servicename,procid_str_static(&crec->pid),
 180                  guest ? "" : uidtoname(ids->entries[i].uid),
 181                  guest ? "" : gidtoname(ids->entries[i].gid),
 182                  crec->machine,
 183                  guest ? "" : ids->entries[i].hostname,
 184                  time_to_asc(crec->start));
 185
 186         return 0;
 187 }
 188
 189 static int net_status_shares_parseable(struct net_context *c, int argc, const char **argv)
 190 {
 191         struct sessionids ids;
 192         TDB_CONTEXT *tdb;
 193
 194         ids.num_entries = 0;
 195         ids.entries = NULL;
 196
 197         tdb = tdb_open_log(lock_path("sessionid.tdb"), 0,
 198                            TDB_DEFAULT, O_RDONLY, 0);
 199
 200         if (tdb == NULL) {
 201                 d_fprintf(stderr, "%s not initialised\n", lock_path("sessionid.tdb"));
 202                 return -1;
 203         }
 204
 205         tdb_traverse(tdb, collect_pid, &ids);
 206         tdb_close(tdb);
 207
 208         connections_forall(show_share_parseable, &ids);
 209
 210         SAFE_FREE(ids.entries);
 211
 212         return 0;
 213 }
 214
 215 static int net_status_shares(struct net_context *c, int argc, const char **argv)
 216 {
 217         if (c->display_usage) {
 218                 d_printf("Usage:\n"
 219                          "net status shares [parseable]\n"
 220                          "    Display open user shares.\n"
 221                          "    If parseable is specified, output is machine-"
 222                          "readable.\n");
 223                 return 0;
 224         }
 225
 226         if (argc == 0) {
 227
 228                 d_printf("\nService      pid     machine       "
 229                          "Connected at\n");
 230                 d_printf("-------------------------------------"
 231                          "------------------\n");
 232
 233                 connections_forall(show_share, NULL);
 234
 235                 return 0;
 236         }
 237
 238         if ((argc != 1) || !strequal(argv[0], "parseable")) {
 239                 return net_status_usage(c, argc, argv);
 240         }
 241
 242         return net_status_shares_parseable(c, argc, argv);
 243 }
 244
 245 int net_status(struct net_context *c, int argc, const char **argv)
 246 {
 247         struct functable func[] = {
 248                 {
 249                         "sessions",
 250                         net_status_sessions,
 251                         NET_TRANSPORT_LOCAL,
 252                         "Show list of open sessions",
 253                         "net status sessions [parseable]\n"
 254                         "    If parseable is specified, output is presented "
 255                         "in a machine-parseable fashion."
 256                 },
 257                 {
 258                         "shares",
 259                         net_status_shares,
 260                         NET_TRANSPORT_LOCAL,
 261                         "Show list of open shares",
 262                         "net status shares [parseable]\n"
 263                         "    If parseable is specified, output is presented "
 264                         "in a machine-parseable fashion."
 265                 },
 266                 {NULL, NULL, 0, NULL, NULL}
 267         };
 268         return net_run_function(c, argc, argv, "net status", func);
 269 }