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