source3/utils/net_eventlog.c

   1 /*
   2  * Samba Unix/Linux SMB client library
   3  * Distributed SMB/CIFS Server Management Utility
   4  * Local win32 eventlog interface
   5  *
   6  * Copyright (C) Guenther Deschner 2009
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include "includes.h"
  23 #include "utils/net.h"
  24
  25 /**
  26  * Dump an *evt win32 eventlog file
  27  *
  28  * @param argc  Standard main() style argc.
  29  * @param argv  Standard main() style argv. Initial components are already
  30  *              stripped.
  31  *
  32  * @return A shell status integer (0 for success).
  33  **/
  34
  35 static int net_eventlog_dump(struct net_context *c, int argc,
  36                              const char **argv)
  37 {
  38         int ret = -1;
  39         TALLOC_CTX *ctx = talloc_stackframe();
  40         enum ndr_err_code ndr_err;
  41         DATA_BLOB blob;
  42         struct EVENTLOG_EVT_FILE evt;
  43         char *s;
  44
  45         if (argc < 1 || c->display_usage) {
  46                 d_fprintf(stderr, "%s\nnet eventlog dump <file.evt>\n",
  47                           _("Usage:"));
  48                 goto done;
  49         }
  50
  51         blob.data = (uint8_t *)file_load(argv[0], &blob.length, 0, ctx);
  52         if (!blob.data) {
  53                 d_fprintf(stderr, _("failed to load evt file: %s\n"), argv[0]);
  54                 goto done;
  55         }
  56
  57         ndr_err = ndr_pull_struct_blob(&blob, ctx, NULL, &evt,
  58                    (ndr_pull_flags_fn_t)ndr_pull_EVENTLOG_EVT_FILE);
  59         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
  60                 d_fprintf(stderr, _("evt pull failed: %s\n"),
  61                           ndr_errstr(ndr_err));
  62                 goto done;
  63         }
  64
  65         s = NDR_PRINT_STRUCT_STRING(ctx, EVENTLOG_EVT_FILE, &evt);
  66         if (s) {
  67                 printf("%s\n", s);
  68         }
  69
  70         ret = 0;
  71  done:
  72         TALLOC_FREE(ctx);
  73         return ret;
  74 }
  75
  76 /**
  77  * Import an *evt win32 eventlog file to internal tdb representation
  78  *
  79  * @param argc  Standard main() style argc.
  80  * @param argv  Standard main() style argv. Initial components are already
  81  *              stripped.
  82  *
  83  * @return A shell status integer (0 for success).
  84  **/
  85
  86 static int net_eventlog_import(struct net_context *c, int argc,
  87                                const char **argv)
  88 {
  89         int ret = -1;
  90         TALLOC_CTX *ctx = talloc_stackframe();
  91         NTSTATUS status;
  92         enum ndr_err_code ndr_err;
  93         DATA_BLOB blob;
  94         uint32_t num_records = 0;
  95         uint32_t i;
  96         ELOG_TDB *etdb = NULL;
  97
  98         struct EVENTLOGHEADER evt_header;
  99         struct EVENTLOG_EVT_FILE evt;
 100
 101         if (argc < 2 || c->display_usage) {
 102                 d_fprintf(stderr,
 103                           "%s\nnet eventlog import <file> <eventlog>\n",
 104                           _("Usage:"));
 105                 goto done;
 106         }
 107
 108         blob.data = (uint8_t *)file_load(argv[0], &blob.length, 0, ctx);
 109         if (!blob.data) {
 110                 d_fprintf(stderr, _("failed to load evt file: %s\n"), argv[0]);
 111                 goto done;
 112         }
 113
 114         /* dump_data(0, blob.data, blob.length); */
 115         ndr_err = ndr_pull_struct_blob(&blob, ctx, NULL, &evt_header,
 116                    (ndr_pull_flags_fn_t)ndr_pull_EVENTLOGHEADER);
 117         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 118                 d_fprintf(stderr, _("evt header pull failed: %s\n"),
 119                           ndr_errstr(ndr_err));
 120                 goto done;
 121         }
 122
 123         if (evt_header.Flags & ELF_LOGFILE_HEADER_WRAP) {
 124                 d_fprintf(stderr, _("input file is wrapped, cannot proceed\n"));
 125                 goto done;
 126         }
 127
 128         ndr_err = ndr_pull_struct_blob(&blob, ctx, NULL, &evt,
 129                    (ndr_pull_flags_fn_t)ndr_pull_EVENTLOG_EVT_FILE);
 130         if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
 131                 d_fprintf(stderr, _("evt pull failed: %s\n"),
 132                           ndr_errstr(ndr_err));
 133                 goto done;
 134         }
 135
 136         /* NDR_PRINT_DEBUG(EVENTLOG_EVT_FILE, &evt); */
 137
 138         etdb = elog_open_tdb(argv[1], false, false);
 139         if (!etdb) {
 140                 d_fprintf(stderr, _("can't open the eventlog TDB (%s)\n"),
 141                           argv[1]);
 142                 goto done;
 143         }
 144
 145         num_records = evt.hdr.CurrentRecordNumber - evt.hdr.OldestRecordNumber;
 146
 147         for (i=0; i<num_records; i++) {
 148                 uint32_t record_number;
 149                 struct eventlog_Record_tdb e;
 150
 151                 status = evlog_evt_entry_to_tdb_entry(ctx, &evt.records[i], &e);
 152                 if (!NT_STATUS_IS_OK(status)) {
 153                         goto done;
 154                 }
 155
 156                 status = evlog_push_record_tdb(ctx, ELOG_TDB_CTX(etdb),
 157                                                &e, &record_number);
 158                 if (!NT_STATUS_IS_OK(status)) {
 159                         d_fprintf(stderr,
 160                                   _("can't write to the eventlog: %s\n"),
 161                                   nt_errstr(status));
 162                         goto done;
 163                 }
 164         }
 165
 166         printf(_("wrote %d entries to tdb\n"), i);
 167
 168         ret = 0;
 169  done:
 170
 171         elog_close_tdb(etdb, false);
 172
 173         TALLOC_FREE(ctx);
 174         return ret;
 175 }
 176
 177 /**
 178  * Export internal eventlog tdb representation to an *evt win32 eventlog file
 179  *
 180  * @param argc  Standard main() style argc.
 181  * @param argv  Standard main() style argv. Initial components are already
 182  *              stripped.
 183  *
 184  * @return A shell status integer (0 for success).
 185  **/
 186
 187 static int net_eventlog_export(struct net_context *c, int argc,
 188                                const char **argv)
 189 {
 190         int ret = -1;
 191         NTSTATUS status;
 192         TALLOC_CTX *ctx = talloc_stackframe();
 193         DATA_BLOB blob;
 194         uint32_t num_records = 0;
 195         ELOG_TDB *etdb = NULL;
 196
 197         if (argc < 2 || c->display_usage) {
 198                 d_fprintf(stderr,
 199                           "%s\nnet eventlog export <file> <eventlog>\n",
 200                           _("Usage:"));
 201                 goto done;
 202         }
 203
 204         etdb = elog_open_tdb(argv[1], false, true);
 205         if (!etdb) {
 206                 d_fprintf(stderr, _("can't open the eventlog TDB (%s)\n"),
 207                           argv[1]);
 208                 goto done;
 209         }
 210
 211         status = evlog_convert_tdb_to_evt(ctx, etdb, &blob, &num_records);
 212         if (!NT_STATUS_IS_OK(status)) {
 213                 goto done;
 214         }
 215
 216         if (!file_save(argv[0], blob.data, blob.length)) {
 217                 d_fprintf(stderr, _("failed to save evt file: %s\n"), argv[0]);
 218                 goto done;
 219         }
 220
 221         ret = 0;
 222  done:
 223
 224         elog_close_tdb(etdb, false);
 225
 226         TALLOC_FREE(ctx);
 227         return ret;
 228 }
 229
 230 /**
 231  * 'net rpc eventlog' entrypoint.
 232  * @param argc  Standard main() style argc.
 233  * @param argv  Standard main() style argv. Initial components are already
 234  *              stripped.
 235  **/
 236
 237 int net_eventlog(struct net_context *c, int argc, const char **argv)
 238 {
 239         int ret = -1;
 240
 241         struct functable func[] = {
 242                 {
 243                         "dump",
 244                         net_eventlog_dump,
 245                         NET_TRANSPORT_LOCAL,
 246                         N_("Dump eventlog"),
 247                         N_("net eventlog dump\n"
 248                            "    Dump win32 *.evt eventlog file")
 249                 },
 250                 {
 251                         "import",
 252                         net_eventlog_import,
 253                         NET_TRANSPORT_LOCAL,
 254                         N_("Import eventlog"),
 255                         N_("net eventlog import\n"
 256                            "    Import win32 *.evt eventlog file")
 257                 },
 258                 {
 259                         "export",
 260                         net_eventlog_export,
 261                         NET_TRANSPORT_LOCAL,
 262                         N_("Export eventlog"),
 263                         N_("net eventlog export\n"
 264                            "    Export win32 *.evt eventlog file")
 265                 },
 266
 267
 268         { NULL, NULL, 0, NULL, NULL }
 269         };
 270
 271         ret = net_run_function(c, argc, argv, "net eventlog", func);
 272
 273         return ret;
 274 }