source3/utils/net_tdb.c

   1 /*
   2  * Samba Unix/Linux client library
   3  * net tdb commands to query tdb record information
   4  * Copyright (C) 2016, 2017 Christof Schmitt <cs@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
  20 #include "includes.h"
  21 #include "utils/net.h"
  22 #include "locking/share_mode_lock.h"
  23 #include "locking/proto.h"
  24 #include "librpc/gen_ndr/open_files.h"
  25 #include "librpc/gen_ndr/ndr_open_files.h"
  26
  27 static int net_tdb_locking(struct net_context *c, int argc, const char **argv)
  28 {
  29         TALLOC_CTX *mem_ctx = talloc_stackframe();
  30         struct share_mode_lock *lock;
  31         DATA_BLOB blob = { .data = NULL };
  32         struct file_id id = { .inode = 0 };
  33         int ret = -1;
  34         bool ok;
  35
  36         if (argc < 1) {
  37                 d_printf("Usage: net tdb locking <key> [ dump ]\n");
  38                 goto out;
  39         }
  40
  41         ok = locking_init_readonly();
  42         if (!ok) {
  43                 d_printf("locking_init_readonly failed\n");
  44                 goto out;
  45         }
  46
  47         blob = strhex_to_data_blob(mem_ctx, argv[0]);
  48         if (blob.length != sizeof(struct file_id)) {
  49                 d_printf("Invalid length %zu of key, expected %zu\n",
  50                          blob.length,
  51                          sizeof(struct file_id));
  52                 goto out;
  53         }
  54
  55         memcpy(&id, blob.data, blob.length);
  56
  57         lock = fetch_share_mode_unlocked(mem_ctx, id);
  58         if (lock == NULL) {
  59                 d_printf("Record with key %s not found.\n", argv[1]);
  60                 goto out;
  61         }
  62
  63         if (argc == 2 && strequal(argv[1], "dump")) {
  64                 char *dump = share_mode_data_dump(mem_ctx, lock);
  65                 d_printf("%s\n", dump);
  66                 TALLOC_FREE(dump);
  67         } else {
  68                 NTSTATUS status;
  69                 size_t num_share_modes = 0;
  70
  71                 status = share_mode_count_entries(id, &num_share_modes);
  72                 if (!NT_STATUS_IS_OK(status)) {
  73                         d_fprintf(stderr,
  74                                   "Could not count share entries: %s\n",
  75                                   nt_errstr(status));
  76                         goto out;
  77                 }
  78
  79                 d_printf("Share path:            %s\n",
  80                          share_mode_servicepath(lock));
  81                 d_printf("Name:                  %s\n",
  82                          share_mode_filename(mem_ctx, lock));
  83                 d_printf("Number of share modes: %zu\n", num_share_modes);
  84         }
  85
  86         ret = 0;
  87 out:
  88         TALLOC_FREE(mem_ctx);
  89         return ret;
  90 }
  91
  92 int net_tdb(struct net_context *c, int argc, const char **argv)
  93 {
  94         struct functable func[] = {
  95                 { "locking",
  96                   net_tdb_locking,
  97                   NET_TRANSPORT_LOCAL,
  98                   N_("Show information for a record in locking.tdb"),
  99                   N_("net tdb locking <key>")
 100                 },
 101                 {NULL, NULL, 0, NULL, NULL}
 102         };
 103
 104         return net_run_function(c, argc, argv, "net tdb", func);
 105 }