source3/utils/eventlogadm.c

   1
   2 /*
   3  * Samba Unix/Linux SMB client utility
   4  * Write Eventlog records to a tdb, perform other eventlog related functions
   5  *
   6  *
   7  * Copyright (C) Brian Moran                2005.
   8  * Copyright (C) Guenther Deschner          2009.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 3 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  22  */
  23
  24
  25 #include "includes.h"
  26 #include "lib/eventlog/eventlog.h"
  27 #include "registry.h"
  28 #include "registry/reg_backend_db.h"
  29
  30 #undef  DBGC_CLASS
  31 #define DBGC_CLASS DBGC_UTIL_EVENTLOG
  32
  33
  34 extern int optind;
  35 extern char *optarg;
  36
  37 int opt_debug = 0;
  38
  39 static void usage( char *s )
  40 {
  41         printf( "\nUsage: %s [OPTION]\n\n", s );
  42         printf( " -o write <Eventlog Name> \t\t\t\t\tWrites records to eventlog from STDIN\n" );
  43         printf( " -o addsource <EventlogName> <sourcename> <msgfileDLLname> \tAdds the specified source & DLL eventlog registry entry\n" );
  44         printf( " -o dump <Eventlog Name> <starting_record>\t\t\t\t\tDump stored eventlog entries on STDOUT\n" );
  45         printf( "\nMiscellaneous options:\n" );
  46         printf( " -s <filename>\t\t\t\t\t\t\tUse configuration file <filename>.\n");
  47         printf( " -d\t\t\t\t\t\t\t\tturn debug on\n" );
  48         printf( " -h\t\t\t\t\t\t\t\tdisplay help\n\n" );
  49 }
  50
  51 static void display_eventlog_names( void )
  52 {
  53         const char **elogs;
  54         int i;
  55
  56         elogs = lp_eventlog_list(  );
  57         printf( "Active eventlog names:\n" );
  58         printf( "--------------------------------------\n" );
  59         if ( elogs ) {
  60                 for ( i = 0; elogs[i]; i++ ) {
  61                         printf( "\t%s\n", elogs[i] );
  62                 }
  63         }
  64         else
  65                 printf( "\t<None specified>\n");
  66 }
  67
  68 static int DoAddSourceCommand( int argc, char **argv, bool debugflag, char *exename )
  69 {
  70
  71         if ( argc < 3 ) {
  72                 printf( "need more arguments:\n" );
  73                 printf( "-o addsource EventlogName SourceName /path/to/EventMessageFile.dll\n" );
  74                 return -1;
  75         }
  76         /* must open the registry before we access it */
  77         if (!W_ERROR_IS_OK(regdb_init())) {
  78                 printf( "Can't open the registry.\n" );
  79                 return -1;
  80         }
  81
  82         if ( !eventlog_add_source( argv[0], argv[1], argv[2] ) )
  83                 return -2;
  84         return 0;
  85 }
  86
  87 static int DoWriteCommand( int argc, char **argv, bool debugflag, char *exename )
  88 {
  89         FILE *f1;
  90         char *argfname;
  91         ELOG_TDB *etdb;
  92         NTSTATUS status;
  93
  94         /* fixed constants are bad bad bad  */
  95         char linein[1024];
  96         bool is_eor;
  97         struct eventlog_Record_tdb ee;
  98         uint32_t record_number = 0;
  99         TALLOC_CTX *mem_ctx = talloc_tos();
 100
 101         f1 = stdin;
 102         if ( !f1 ) {
 103                 printf( "Can't open STDIN\n" );
 104                 return -1;
 105         }
 106
 107         if ( debugflag ) {
 108                 printf( "Starting write for eventlog [%s]\n", argv[0] );
 109                 display_eventlog_names(  );
 110         }
 111
 112         argfname = argv[0];
 113
 114         if ( !( etdb = elog_open_tdb( argfname, False, False ) ) ) {
 115                 printf( "can't open the eventlog TDB (%s)\n", argfname );
 116                 return -1;
 117         }
 118
 119         ZERO_STRUCT( ee );      /* MUST initialize between records */
 120
 121         while ( !feof( f1 ) ) {
 122                 if (fgets( linein, sizeof( linein ) - 1, f1 ) == NULL) {
 123                         break;
 124                 }
 125                 if ((strlen(linein) > 0)
 126                     && (linein[strlen(linein)-1] == '\n')) {
 127                         linein[strlen(linein)-1] = 0;
 128                 }
 129
 130                 if ( debugflag )
 131                         printf( "Read line [%s]\n", linein );
 132
 133                 is_eor = False;
 134
 135
 136                 parse_logentry( mem_ctx, ( char * ) &linein, &ee, &is_eor );
 137                 /* should we do something with the return code? */
 138
 139                 if ( is_eor ) {
 140                         fixup_eventlog_record_tdb( &ee );
 141
 142                         if ( opt_debug )
 143                                 printf( "record number [%d], tg [%d] , tw [%d]\n",
 144                                         ee.record_number, (int)ee.time_generated, (int)ee.time_written );
 145
 146                         if ( ee.time_generated != 0 ) {
 147
 148                                 /* printf("Writing to the event log\n"); */
 149
 150                                 status = evlog_push_record_tdb( mem_ctx, ELOG_TDB_CTX(etdb),
 151                                                                 &ee, &record_number );
 152                                 if ( !NT_STATUS_IS_OK(status) ) {
 153                                         printf( "Can't write to the event log: %s\n",
 154                                                 nt_errstr(status) );
 155                                 } else {
 156                                         if ( opt_debug )
 157                                                 printf( "Wrote record %d\n",
 158                                                         record_number );
 159                                 }
 160                         } else {
 161                                 if ( opt_debug )
 162                                         printf( "<null record>\n" );
 163                         }
 164                         ZERO_STRUCT( ee );      /* MUST initialize between records */
 165                 }
 166         }
 167
 168         elog_close_tdb( etdb , False );
 169
 170         return 0;
 171 }
 172
 173 static int DoDumpCommand(int argc, char **argv, bool debugflag, char *exename)
 174 {
 175         ELOG_TDB *etdb;
 176         TALLOC_CTX *mem_ctx = talloc_tos();
 177         const char *tdb_filename;
 178         uint32_t count = 1;
 179
 180         if (argc > 2) {
 181                 return -1;
 182         }
 183
 184         tdb_filename = argv[0];
 185
 186         if (argc > 1) {
 187                 count = atoi(argv[1]);
 188         }
 189
 190         etdb = elog_open_tdb(argv[0], false, true);
 191         if (!etdb) {
 192                 printf("can't open the eventlog TDB (%s)\n", argv[0]);
 193                 return -1;
 194         }
 195
 196         while (1) {
 197
 198                 struct eventlog_Record_tdb *r;
 199                 char *s;
 200
 201                 r = evlog_pull_record_tdb(mem_ctx, etdb->tdb, count);
 202                 if (!r) {
 203                         break;
 204                 }
 205
 206                 printf("displaying record: %d\n", count);
 207
 208                 s = NDR_PRINT_STRUCT_STRING(mem_ctx, eventlog_Record_tdb, r);
 209                 if (s) {
 210                         printf("%s\n", s);
 211                         talloc_free(s);
 212                 }
 213                 count++;
 214         }
 215
 216         elog_close_tdb(etdb, false);
 217
 218         return 0;
 219 }
 220
 221 /* would be nice to use the popT stuff here, however doing so forces us to drag in a lot of other infrastructure */
 222
 223 int main( int argc, char *argv[] )
 224 {
 225         int opt, rc;
 226         char *exename;
 227         char *configfile = NULL;
 228         TALLOC_CTX *frame = talloc_stackframe();
 229
 230
 231         fstring opname;
 232
 233         load_case_tables();
 234
 235         opt_debug = 0;          /* todo set this from getopts */
 236
 237         exename = argv[0];
 238
 239         /* default */
 240
 241         fstrcpy( opname, "write" );     /* the default */
 242
 243 #if 0                           /* TESTING CODE */
 244         eventlog_add_source( "System", "TestSourceX", "SomeTestPathX" );
 245 #endif
 246         while ( ( opt = getopt( argc, argv, "dho:s:" ) ) != EOF ) {
 247                 switch ( opt ) {
 248
 249                 case 'o':
 250                         fstrcpy( opname, optarg );
 251                         break;
 252
 253                 case 'h':
 254                         usage( exename );
 255                         display_eventlog_names(  );
 256                         exit( 0 );
 257                         break;
 258
 259                 case 'd':
 260                         opt_debug = 1;
 261                         break;
 262                 case 's':
 263                         configfile = talloc_strdup(frame, optarg);
 264                         break;
 265
 266                 }
 267         }
 268
 269         argc -= optind;
 270         argv += optind;
 271
 272         if ( argc < 1 ) {
 273                 printf( "\nNot enough arguments!\n" );
 274                 usage( exename );
 275                 exit( 1 );
 276         }
 277
 278         if ( configfile == NULL ) {
 279                 lp_load(get_dyn_CONFIGFILE(), True, False, False, True);
 280         } else if (!lp_load(configfile, True, False, False, True)) {
 281                 printf("Unable to parse configfile '%s'\n",configfile);
 282                 exit( 1 );
 283         }
 284
 285         /*  note that the separate command types should call usage if they need to... */
 286         while ( 1 ) {
 287                 if ( !StrCaseCmp( opname, "addsource" ) ) {
 288                         rc = DoAddSourceCommand( argc, argv, opt_debug,
 289                                                  exename );
 290                         break;
 291                 }
 292                 if ( !StrCaseCmp( opname, "write" ) ) {
 293                         rc = DoWriteCommand( argc, argv, opt_debug, exename );
 294                         break;
 295                 }
 296                 if ( !StrCaseCmp( opname, "dump" ) ) {
 297                         rc = DoDumpCommand( argc, argv, opt_debug, exename );
 298                         break;
 299                 }
 300                 printf( "unknown command [%s]\n", opname );
 301                 usage( exename );
 302                 exit( 1 );
 303                 break;
 304         }
 305         TALLOC_FREE(frame);
 306         return rc;
 307 }