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