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(_("Usage:\n"
  67                            "net status sessions [parseable]\n"
  68                            "    Display open user sessions.\n"
  69                            "    If parseable is specified, output is machine-"
  70                            "readable.\n"));
  71                 return 0;
  72         }
  73
  74         if (argc == 0) {
  75                 parseable = false;
  76         } else if ((argc == 1) && strequal(argv[0], "parseable")) {
  77                 parseable = true;
  78         } else {
  79                 return net_status_usage(c, argc, argv);
  80         }
  81
  82         if (!parseable) {
  83                 d_printf(_("PID     Username      Group         Machine"
  84                            "                        \n"
  85                            "-------------------------------------------"
  86                            "------------------------\n"));
  87         }
  88
  89         db = db_open(NULL, lock_path("sessionid.tdb"), 0,
  90                      TDB_CLEAR_IF_FIRST, O_RDONLY, 0644);
  91         if (db == NULL) {
  92                 d_fprintf(stderr, _("%s not initialised\n"),
  93                           lock_path("sessionid.tdb"));
  94                 return -1;
  95         }
  96
  97         db->traverse_read(db, show_session, &parseable);
  98         TALLOC_FREE(db);
  99
 100         return 0;
 101 }
 102
 103 static int show_share(struct db_record *rec,
 104                       const struct connections_key *key,
 105                       const struct connections_data *crec,
 106                       void *state)
 107 {
 108         if (crec->cnum == -1)
 109                 return 0;
 110
 111         if (!process_exists(crec->pid)) {
 112                 return 0;
 113         }
 114
 115         d_printf("%-10.10s   %s   %-12s  %s",
 116                crec->servicename, procid_str_static(&crec->pid),
 117                crec->machine,
 118                time_to_asc(crec->start));
 119
 120         return 0;
 121 }
 122
 123 struct sessionids {
 124         int num_entries;
 125         struct sessionid *entries;
 126 };
 127
 128 static int collect_pid(struct db_record *rec, void *private_data)
 129 {
 130         struct sessionids *ids = (struct sessionids *)private_data;
 131         struct sessionid sessionid;
 132
 133         if (rec->value.dsize != sizeof(sessionid))
 134                 return 0;
 135
 136         memcpy(&sessionid, rec->value.dptr, sizeof(sessionid));
 137
 138         if (!process_exists(sessionid.pid))
 139                 return 0;
 140
 141         ids->num_entries += 1;
 142         ids->entries = SMB_REALLOC_ARRAY(ids->entries, struct sessionid, ids->num_entries);
 143         if (!ids->entries) {
 144                 ids->num_entries = 0;
 145                 return 0;
 146         }
 147         ids->entries[ids->num_entries-1] = sessionid;
 148
 149         return 0;
 150 }
 151
 152 static int show_share_parseable(struct db_record *rec,
 153                                 const struct connections_key *key,
 154                                 const struct connections_data *crec,
 155                                 void *state)
 156 {
 157         struct sessionids *ids = (struct sessionids *)state;
 158         int i;
 159         bool guest = true;
 160
 161         if (crec->cnum == -1)
 162                 return 0;
 163
 164         if (!process_exists(crec->pid)) {
 165                 return 0;
 166         }
 167
 168         for (i=0; i<ids->num_entries; i++) {
 169                 struct server_id id = ids->entries[i].pid;
 170                 if (procid_equal(&id, &crec->pid)) {
 171                         guest = false;
 172                         break;
 173                 }
 174         }
 175
 176         d_printf("%s\\%s\\%s\\%s\\%s\\%s\\%s",
 177                  crec->servicename,procid_str_static(&crec->pid),
 178                  guest ? "" : uidtoname(ids->entries[i].uid),
 179                  guest ? "" : gidtoname(ids->entries[i].gid),
 180                  crec->machine,
 181                  guest ? "" : ids->entries[i].hostname,
 182                  time_to_asc(crec->start));
 183
 184         return 0;
 185 }
 186
 187 static int net_status_shares_parseable(struct net_context *c, int argc, const char **argv)
 188 {
 189         struct sessionids ids;
 190         struct db_context *db;
 191
 192         ids.num_entries = 0;
 193         ids.entries = NULL;
 194
 195         db = db_open(NULL, lock_path("sessionid.tdb"), 0,
 196                      TDB_CLEAR_IF_FIRST, O_RDONLY, 0644);
 197         if (db == NULL) {
 198                 d_fprintf(stderr, _("%s not initialised\n"),
 199                           lock_path("sessionid.tdb"));
 200                 return -1;
 201         }
 202
 203         db->traverse_read(db, collect_pid, &ids);
 204         TALLOC_FREE(db);
 205
 206         connections_forall(show_share_parseable, &ids);
 207
 208         SAFE_FREE(ids.entries);
 209
 210         return 0;
 211 }
 212
 213 static int net_status_shares(struct net_context *c, int argc, const char **argv)
 214 {
 215         if (c->display_usage) {
 216                 d_printf(_("Usage:\n"
 217                            "net status shares [parseable]\n"
 218                            "    Display open user shares.\n"
 219                            "    If parseable is specified, output is machine-"
 220                            "readable.\n"));
 221                 return 0;
 222         }
 223
 224         if (argc == 0) {
 225
 226                 d_printf(_("\nService      pid     machine       "
 227                            "Connected at\n"
 228                            "-------------------------------------"
 229                            "------------------\n"));
 230
 231                 connections_forall(show_share, NULL);
 232
 233                 return 0;
 234         }
 235
 236         if ((argc != 1) || !strequal(argv[0], "parseable")) {
 237                 return net_status_usage(c, argc, argv);
 238         }
 239
 240         return net_status_shares_parseable(c, argc, argv);
 241 }
 242
 243 int net_status(struct net_context *c, int argc, const char **argv)
 244 {
 245         struct functable func[] = {
 246                 {
 247                         "sessions",
 248                         net_status_sessions,
 249                         NET_TRANSPORT_LOCAL,
 250                         N_("Show list of open sessions"),
 251                         N_("net status sessions [parseable]\n"
 252                            "    If parseable is specified, output is presented "
 253                            "in a machine-parseable fashion.")
 254                 },
 255                 {
 256                         "shares",
 257                         net_status_shares,
 258                         NET_TRANSPORT_LOCAL,
 259                         N_("Show list of open shares"),
 260                         N_("net status shares [parseable]\n"
 261                            "    If parseable is specified, output is presented "
 262                            "in a machine-parseable fashion.")
 263                 },
 264                 {NULL, NULL, 0, NULL, NULL}
 265         };
 266         return net_run_function(c, argc, argv, "net status", func);
 267 }