source/utils/profiles.c

   1 /*
   2    Samba Unix/Linux SMB client utility profiles.c
   3
   4    Copyright (C) Richard Sharpe, <rsharpe@richardsharpe.com>   2002
   5    Copyright (C) Jelmer Vernooij (conversion to popt)          2003
   6    Copyright (C) Gerald (Jerry) Carter                         2005
   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 "regfio.h"
  24
  25 /* GLOBAL VARIABLES */
  26
  27 DOM_SID old_sid, new_sid;
  28 int change = 0, new_val = 0;
  29 int opt_verbose = False;
  30
  31 /********************************************************************
  32 ********************************************************************/
  33
  34 static void verbose_output(const char *format, ...) PRINTF_ATTRIBUTE(1,2);
  35 static void verbose_output(const char *format, ...)
  36 {
  37         va_list args;
  38         char *var = NULL;
  39
  40         if (!opt_verbose) {
  41                 return;
  42         }
  43
  44         va_start(args, format);
  45         if ((vasprintf(&var, format, args)) == -1) {
  46                 va_end(args);
  47                 return;
  48         }
  49
  50         fprintf(stdout, var);
  51         va_end(args);
  52         SAFE_FREE(var);
  53 }
  54
  55 /********************************************************************
  56 ********************************************************************/
  57
  58 static bool swap_sid_in_acl( SEC_DESC *sd, DOM_SID *s1, DOM_SID *s2 )
  59 {
  60         SEC_ACL *acl;
  61         int i;
  62         bool update = False;
  63
  64         verbose_output("  Owner SID: %s\n", sid_string_tos(sd->owner_sid));
  65         if ( sid_equal( sd->owner_sid, s1 ) ) {
  66                 sid_copy( sd->owner_sid, s2 );
  67                 update = True;
  68                 verbose_output("  New Owner SID: %s\n",
  69                         sid_string_tos(sd->owner_sid));
  70
  71         }
  72
  73         verbose_output("  Group SID: %s\n", sid_string_tos(sd->group_sid));
  74         if ( sid_equal( sd->group_sid, s1 ) ) {
  75                 sid_copy( sd->group_sid, s2 );
  76                 update = True;
  77                 verbose_output("  New Group SID: %s\n",
  78                         sid_string_tos(sd->group_sid));
  79         }
  80
  81         acl = sd->dacl;
  82         verbose_output("  DACL: %d entries:\n", acl->num_aces);
  83         for ( i=0; i<acl->num_aces; i++ ) {
  84                 verbose_output("    Trustee SID: %s\n",
  85                         sid_string_tos(&acl->aces[i].trustee));
  86                 if ( sid_equal( &acl->aces[i].trustee, s1 ) ) {
  87                         sid_copy( &acl->aces[i].trustee, s2 );
  88                         update = True;
  89                         verbose_output("    New Trustee SID: %s\n",
  90                                 sid_string_tos(&acl->aces[i].trustee));
  91                 }
  92         }
  93
  94 #if 0
  95         acl = sd->sacl;
  96         verbose_output("  SACL: %d entries: \n", acl->num_aces);
  97         for ( i=0; i<acl->num_aces; i++ ) {
  98                 verbose_output("    Trustee SID: %s\n",
  99                         sid_string_tos(&acl->aces[i].trustee));
 100                 if ( sid_equal( &acl->aces[i].trustee, s1 ) ) {
 101                         sid_copy( &acl->aces[i].trustee, s2 );
 102                         update = True;
 103                         verbose_output("    New Trustee SID: %s\n",
 104                                 sid_string_tos(&acl->aces[i].trustee));
 105                 }
 106         }
 107 #endif
 108         return update;
 109 }
 110
 111 /********************************************************************
 112 ********************************************************************/
 113
 114 static bool copy_registry_tree( REGF_FILE *infile, REGF_NK_REC *nk,
 115                                 REGF_NK_REC *parent, REGF_FILE *outfile,
 116                                 const char *parentpath  )
 117 {
 118         REGF_NK_REC *key, *subkey;
 119         SEC_DESC *new_sd;
 120         REGVAL_CTR *values;
 121         REGSUBKEY_CTR *subkeys;
 122         int i;
 123         char *path;
 124
 125         /* swap out the SIDs in the security descriptor */
 126
 127         if ( !(new_sd = dup_sec_desc( outfile->mem_ctx, nk->sec_desc->sec_desc )) ) {
 128                 fprintf( stderr, "Failed to copy security descriptor!\n" );
 129                 return False;
 130         }
 131
 132         verbose_output("ACL for %s%s%s\n", parentpath, parent ? "\\" : "", nk->keyname);
 133         swap_sid_in_acl( new_sd, &old_sid, &new_sid );
 134
 135         if ( !(subkeys = TALLOC_ZERO_P( NULL, REGSUBKEY_CTR )) ) {
 136                 DEBUG(0,("copy_registry_tree: talloc() failure!\n"));
 137                 return False;
 138         }
 139
 140         if ( !(values = TALLOC_ZERO_P( subkeys, REGVAL_CTR )) ) {
 141                 TALLOC_FREE( subkeys );
 142                 DEBUG(0,("copy_registry_tree: talloc() failure!\n"));
 143                 return False;
 144         }
 145
 146         /* copy values into the REGVAL_CTR */
 147
 148         for ( i=0; i<nk->num_values; i++ ) {
 149                 regval_ctr_addvalue( values, nk->values[i].valuename, nk->values[i].type,
 150                         (const char *)nk->values[i].data, (nk->values[i].data_size & ~VK_DATA_IN_OFFSET) );
 151         }
 152
 153         /* copy subkeys into the REGSUBKEY_CTR */
 154
 155         while ( (subkey = regfio_fetch_subkey( infile, nk )) ) {
 156                 regsubkey_ctr_addkey( subkeys, subkey->keyname );
 157         }
 158
 159         key = regfio_write_key( outfile, nk->keyname, values, subkeys, new_sd, parent );
 160
 161         /* write each one of the subkeys out */
 162
 163         path = talloc_asprintf(subkeys, "%s%s%s",
 164                         parentpath, parent ? "\\" : "",nk->keyname);
 165         if (!path) {
 166                 TALLOC_FREE( subkeys );
 167                 return false;
 168         }
 169
 170         nk->subkey_index = 0;
 171         while ((subkey = regfio_fetch_subkey(infile, nk))) {
 172                 if (!copy_registry_tree( infile, subkey, key, outfile, path)) {
 173                         TALLOC_FREE(subkeys);
 174                         return false;
 175                 }
 176         }
 177
 178         /* values is a talloc()'d child of subkeys here so just throw it all away */
 179
 180         TALLOC_FREE( subkeys );
 181
 182         verbose_output("[%s]\n", path);
 183
 184         return True;
 185 }
 186
 187 /*********************************************************************
 188 *********************************************************************/
 189
 190 int main( int argc, char *argv[] )
 191 {
 192         TALLOC_CTX *frame = talloc_stackframe();
 193         int opt;
 194         REGF_FILE *infile, *outfile;
 195         REGF_NK_REC *nk;
 196         char *orig_filename, *new_filename;
 197         struct poptOption long_options[] = {
 198                 POPT_AUTOHELP
 199                 { "change-sid", 'c', POPT_ARG_STRING, NULL, 'c', "Provides SID to change" },
 200                 { "new-sid", 'n', POPT_ARG_STRING, NULL, 'n', "Provides SID to change to" },
 201                 { "verbose", 'v', POPT_ARG_NONE, &opt_verbose, 'v', "Verbose output" },
 202                 POPT_COMMON_SAMBA
 203                 POPT_COMMON_VERSION
 204                 POPT_TABLEEND
 205         };
 206         poptContext pc;
 207
 208         load_case_tables();
 209
 210         /* setup logging options */
 211
 212         setup_logging( "profiles", True );
 213         dbf = x_stderr;
 214         x_setbuf( x_stderr, NULL );
 215
 216         pc = poptGetContext("profiles", argc, (const char **)argv, long_options,
 217                 POPT_CONTEXT_KEEP_FIRST);
 218
 219         poptSetOtherOptionHelp(pc, "<profilefile>");
 220
 221         /* Now, process the arguments */
 222
 223         while ((opt = poptGetNextOpt(pc)) != -1) {
 224                 switch (opt) {
 225                 case 'c':
 226                         change = 1;
 227                         if (!string_to_sid(&old_sid, poptGetOptArg(pc))) {
 228                                 fprintf(stderr, "Argument to -c should be a SID in form of S-1-5-...\n");
 229                                 poptPrintUsage(pc, stderr, 0);
 230                                 exit(254);
 231                         }
 232                         break;
 233
 234                 case 'n':
 235                         new_val = 1;
 236                         if (!string_to_sid(&new_sid, poptGetOptArg(pc))) {
 237                                 fprintf(stderr, "Argument to -n should be a SID in form of S-1-5-...\n");
 238                                 poptPrintUsage(pc, stderr, 0);
 239                                 exit(253);
 240                         }
 241                         break;
 242
 243                 }
 244         }
 245
 246         poptGetArg(pc);
 247
 248         if (!poptPeekArg(pc)) {
 249                 poptPrintUsage(pc, stderr, 0);
 250                 exit(1);
 251         }
 252
 253         if ((!change && new_val) || (change && !new_val)) {
 254                 fprintf(stderr, "You must specify both -c and -n if one or the other is set!\n");
 255                 poptPrintUsage(pc, stderr, 0);
 256                 exit(252);
 257         }
 258
 259         orig_filename = talloc_strdup(frame, poptPeekArg(pc));
 260         if (!orig_filename) {
 261                 exit(ENOMEM);
 262         }
 263         new_filename = talloc_asprintf(frame,
 264                                         "%s.new",
 265                                         orig_filename);
 266         if (!new_filename) {
 267                 exit(ENOMEM);
 268         }
 269
 270         if (!(infile = regfio_open( orig_filename, O_RDONLY, 0))) {
 271                 fprintf( stderr, "Failed to open %s!\n", orig_filename );
 272                 fprintf( stderr, "Error was (%s)\n", strerror(errno) );
 273                 exit (1);
 274         }
 275
 276         if ( !(outfile = regfio_open( new_filename, (O_RDWR|O_CREAT|O_TRUNC), (S_IREAD|S_IWRITE) )) ) {
 277                 fprintf( stderr, "Failed to open new file %s!\n", new_filename );
 278                 fprintf( stderr, "Error was (%s)\n", strerror(errno) );
 279                 exit (1);
 280         }
 281
 282         /* actually do the update now */
 283
 284         if ((nk = regfio_rootkey( infile )) == NULL) {
 285                 fprintf(stderr, "Could not get rootkey\n");
 286                 exit(3);
 287         }
 288
 289         if (!copy_registry_tree( infile, nk, NULL, outfile, "")) {
 290                 fprintf(stderr, "Failed to write updated registry file!\n");
 291                 exit(2);
 292         }
 293
 294         /* cleanup */
 295
 296         regfio_close(infile);
 297         regfio_close(outfile);
 298
 299         poptFreeContext(pc);
 300
 301         TALLOC_FREE(frame);
 302         return 0;
 303 }