source3/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(struct db_record *rec, void *private_data)
  32 {
  33         bool *parseable = (bool *)private_data;
  34         struct sessionid sessionid;
  35
  36         if (rec->value.dsize != sizeof(sessionid))
  37                 return 0;
  38
  39         memcpy(&sessionid, rec->value.dptr, sizeof(sessionid));
  40
  41         if (!process_exists(sessionid.pid)) {
  42                 return 0;
  43         }
  44
  45         if (*parseable) {
  46                 d_printf("%s\\%s\\%s\\%s\\%s\n",
  47                          procid_str_static(&sessionid.pid), uidtoname(sessionid.uid),
  48                          gidtoname(sessionid.gid),
  49                          sessionid.remote_machine, sessionid.hostname);
  50         } else {
  51                 d_printf("%7s   %-12s  %-12s  %-12s (%s)\n",
  52                          procid_str_static(&sessionid.pid), uidtoname(sessionid.uid),
  53                          gidtoname(sessionid.gid),
  54                          sessionid.remote_machine, sessionid.hostname);
  55         }
  56
  57         return 0;
  58 }
  59
  60 static int net_status_sessions(struct net_context *c, int argc, const char **argv)
  61 {
  62         struct db_context *db;
  63         bool parseable;
  64
  65         if (c->display_usage) {
  66                 d_printf(  "%s\n"
  67                            "net status sessions [parseable]\n"
  68                            "    %s\n",
  69                          _("Usage:"),
  70                          _("Display open user sessions.\n"
  71                            "    If parseable is specified, output is machine-"
  72                            "readable."));
  73                 return 0;
  74         }
  75
  76         if (argc == 0) {
  77                 parseable = false;
  78         } else if ((argc == 1) && strequal(argv[0], "parseable")) {
  79                 parseable = true;
  80         } else {
  81                 return net_status_usage(c, argc, argv);
  82         }
  83
  84         if (!parseable) {
  85                 d_printf(_("PID     Username      Group         Machine"
  86                            "                        \n"
  87                            "-------------------------------------------"
  88                            "------------------------\n"));
  89         }
  90
  91         db = db_open(NULL, lock_path("sessionid.tdb"), 0,
  92                      TDB_CLEAR_IF_FIRST, O_RDONLY, 0644);
  93         if (db == NULL) {
  94                 d_fprintf(stderr, _("%s not initialised\n"),
  95                           lock_path("sessionid.tdb"));
  96                 return -1;
  97         }
  98
  99         db->traverse_read(db, show_session, &parseable);
 100         TALLOC_FREE(db);
 101
 102         return 0;
 103 }
 104
 105 static int show_share(struct db_record *rec,
 106                       const struct connections_key *key,
 107                       const struct connections_data *crec,
 108                       void *state)
 109 {
 110         if (crec->cnum == -1)
 111                 return 0;
 112
 113         if (!process_exists(crec->pid)) {
 114                 return 0;
 115         }
 116
 117         d_printf("%-10.10s   %s   %-12s  %s",
 118                crec->servicename, procid_str_static(&crec->pid),
 119                crec->machine,
 120                time_to_asc(crec->start));
 121
 122         return 0;
 123 }
 124
 125 struct sessionids {
 126         int num_entries;
 127         struct sessionid *entries;
 128 };
 129
 130 static int collect_pid(struct db_record *rec, void *private_data)
 131 {
 132         struct sessionids *ids = (struct sessionids *)private_data;
 133         struct sessionid sessionid;
 134
 135         if (rec->value.dsize != sizeof(sessionid))
 136                 return 0;
 137
 138         memcpy(&sessionid, rec->value.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         struct db_context *db;
 193
 194         ids.num_entries = 0;
 195         ids.entries = NULL;
 196
 197         db = db_open(NULL, lock_path("sessionid.tdb"), 0,
 198                      TDB_CLEAR_IF_FIRST, O_RDONLY, 0644);
 199         if (db == NULL) {
 200                 d_fprintf(stderr, _("%s not initialised\n"),
 201                           lock_path("sessionid.tdb"));
 202                 return -1;
 203         }
 204
 205         db->traverse_read(db, collect_pid, &ids);
 206         TALLOC_FREE(db);
 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(  "%s\n"
 219                            "net status shares [parseable]\n"
 220                            "    %s\n",
 221                          _("Usage:"),
 222                          _("Display open user shares.\n"
 223                            "    If parseable is specified, output is machine-"
 224                            "readable."));
 225                 return 0;
 226         }
 227
 228         if (argc == 0) {
 229
 230                 d_printf(_("\nService      pid     machine       "
 231                            "Connected at\n"
 232                            "-------------------------------------"
 233                            "------------------\n"));
 234
 235                 connections_forall(show_share, NULL);
 236
 237                 return 0;
 238         }
 239
 240         if ((argc != 1) || !strequal(argv[0], "parseable")) {
 241                 return net_status_usage(c, argc, argv);
 242         }
 243
 244         return net_status_shares_parseable(c, argc, argv);
 245 }
 246
 247 int net_status(struct net_context *c, int argc, const char **argv)
 248 {
 249         struct functable func[] = {
 250                 {
 251                         "sessions",
 252                         net_status_sessions,
 253                         NET_TRANSPORT_LOCAL,
 254                         N_("Show list of open sessions"),
 255                         N_("net status sessions [parseable]\n"
 256                            "    If parseable is specified, output is presented "
 257                            "in a machine-parseable fashion.")
 258                 },
 259                 {
 260                         "shares",
 261                         net_status_shares,
 262                         NET_TRANSPORT_LOCAL,
 263                         N_("Show list of open shares"),
 264                         N_("net status shares [parseable]\n"
 265                            "    If parseable is specified, output is presented "
 266                            "in a machine-parseable fashion.")
 267                 },
 268                 {NULL, NULL, 0, NULL, NULL}
 269         };
 270         return net_run_function(c, argc, argv, "net status", func);
 271 }