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