source3/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 "system/filesys.h"
  24 #include "popt_common.h"
  25 #include "registry/reg_objects.h"
  26 #include "registry/regfio.h"
  27 #include "../libcli/security/security.h"
  28
  29 /* GLOBAL VARIABLES */
  30
  31 struct dom_sid old_sid, new_sid;
  32 int change = 0, new_val = 0;
  33 int opt_verbose = False;
  34
  35 /********************************************************************
  36 ********************************************************************/
  37
  38 static void verbose_output(const char *format, ...) PRINTF_ATTRIBUTE(1,2);
  39 static void verbose_output(const char *format, ...)
  40 {
  41         va_list args;
  42         char *var = NULL;
  43
  44         if (!opt_verbose) {
  45                 return;
  46         }
  47
  48         va_start(args, format);
  49         if ((vasprintf(&var, format, args)) == -1) {
  50                 va_end(args);
  51                 return;
  52         }
  53
  54         fprintf(stdout, "%s", var);
  55         va_end(args);
  56         SAFE_FREE(var);
  57 }
  58
  59 /********************************************************************
  60 ********************************************************************/
  61
  62 static bool swap_sid_in_acl( struct security_descriptor *sd, struct dom_sid *s1, struct dom_sid *s2 )
  63 {
  64         struct security_acl *theacl;
  65         int i;
  66         bool update = False;
  67
  68         verbose_output("  Owner SID: %s\n", sid_string_tos(sd->owner_sid));
  69         if ( dom_sid_equal( sd->owner_sid, s1 ) ) {
  70                 sid_copy( sd->owner_sid, s2 );
  71                 update = True;
  72                 verbose_output("  New Owner SID: %s\n",
  73                         sid_string_tos(sd->owner_sid));
  74
  75         }
  76
  77         verbose_output("  Group SID: %s\n", sid_string_tos(sd->group_sid));
  78         if ( dom_sid_equal( sd->group_sid, s1 ) ) {
  79                 sid_copy( sd->group_sid, s2 );
  80                 update = True;
  81                 verbose_output("  New Group SID: %s\n",
  82                         sid_string_tos(sd->group_sid));
  83         }
  84
  85         theacl = sd->dacl;
  86         verbose_output("  DACL: %d entries:\n", theacl->num_aces);
  87         for ( i=0; i<theacl->num_aces; i++ ) {
  88                 verbose_output("    Trustee SID: %s\n",
  89                         sid_string_tos(&theacl->aces[i].trustee));
  90                 if ( dom_sid_equal( &theacl->aces[i].trustee, s1 ) ) {
  91                         sid_copy( &theacl->aces[i].trustee, s2 );
  92                         update = True;
  93                         verbose_output("    New Trustee SID: %s\n",
  94                                 sid_string_tos(&theacl->aces[i].trustee));
  95                 }
  96         }
  97
  98 #if 0
  99         theacl = sd->sacl;
 100         verbose_output("  SACL: %d entries: \n", theacl->num_aces);
 101         for ( i=0; i<theacl->num_aces; i++ ) {
 102                 verbose_output("    Trustee SID: %s\n",
 103                         sid_string_tos(&theacl->aces[i].trustee));
 104                 if ( dom_sid_equal( &theacl->aces[i].trustee, s1 ) ) {
 105                         sid_copy( &theacl->aces[i].trustee, s2 );
 106                         update = True;
 107                         verbose_output("    New Trustee SID: %s\n",
 108                                 sid_string_tos(&theacl->aces[i].trustee));
 109                 }
 110         }
 111 #endif
 112         return update;
 113 }
 114
 115 /********************************************************************
 116 ********************************************************************/
 117
 118 static bool copy_registry_tree( REGF_FILE *infile, REGF_NK_REC *nk,
 119                                 REGF_NK_REC *parent, REGF_FILE *outfile,
 120                                 const char *parentpath  )
 121 {
 122         REGF_NK_REC *key, *subkey;
 123         struct security_descriptor *new_sd;
 124         struct regval_ctr *values;
 125         struct regsubkey_ctr *subkeys;
 126         int i;
 127         char *path;
 128         WERROR werr;
 129
 130         /* swap out the SIDs in the security descriptor */
 131
 132         if (nk->sec_desc->sec_desc == NULL) {
 133                 fprintf(stderr, "Invalid (NULL) security descriptor!\n");
 134                 return false;
 135         }
 136
 137         new_sd = security_descriptor_copy(outfile->mem_ctx,
 138                                           nk->sec_desc->sec_desc);
 139         if (new_sd == NULL) {
 140                 fprintf(stderr, "Failed to copy security descriptor!\n");
 141                 return False;
 142         }
 143
 144         verbose_output("ACL for %s%s%s\n", parentpath, parent ? "\\" : "", nk->keyname);
 145         swap_sid_in_acl( new_sd, &old_sid, &new_sid );
 146
 147         werr = regsubkey_ctr_init(NULL, &subkeys);
 148         if (!W_ERROR_IS_OK(werr)) {
 149                 DEBUG(0,("copy_registry_tree: talloc() failure!\n"));
 150                 return False;
 151         }
 152
 153         werr = regval_ctr_init(subkeys, &values);
 154         if (!W_ERROR_IS_OK(werr)) {
 155                 TALLOC_FREE( subkeys );
 156                 DEBUG(0,("copy_registry_tree: talloc() failure!\n"));
 157                 return False;
 158         }
 159
 160         /* copy values into the struct regval_ctr */
 161
 162         for ( i=0; i<nk->num_values; i++ ) {
 163                 regval_ctr_addvalue( values, nk->values[i].valuename, nk->values[i].type,
 164                         nk->values[i].data, (nk->values[i].data_size & ~VK_DATA_IN_OFFSET) );
 165         }
 166
 167         /* copy subkeys into the struct regsubkey_ctr */
 168
 169         while ( (subkey = regfio_fetch_subkey( infile, nk )) ) {
 170                 regsubkey_ctr_addkey( subkeys, subkey->keyname );
 171         }
 172
 173         key = regfio_write_key( outfile, nk->keyname, values, subkeys, new_sd, parent );
 174
 175         /* write each one of the subkeys out */
 176
 177         path = talloc_asprintf(subkeys, "%s%s%s",
 178                         parentpath, parent ? "\\" : "",nk->keyname);
 179         if (!path) {
 180                 TALLOC_FREE( subkeys );
 181                 return false;
 182         }
 183
 184         nk->subkey_index = 0;
 185         while ((subkey = regfio_fetch_subkey(infile, nk))) {
 186                 if (!copy_registry_tree( infile, subkey, key, outfile, path)) {
 187                         TALLOC_FREE(subkeys);
 188                         return false;
 189                 }
 190         }
 191
 192         /* values is a talloc()'d child of subkeys here so just throw it all away */
 193
 194         TALLOC_FREE( subkeys );
 195
 196         verbose_output("[%s]\n", path);
 197
 198         return True;
 199 }
 200
 201 /*********************************************************************
 202 *********************************************************************/
 203
 204 int main( int argc, const char *argv[] )
 205 {
 206         TALLOC_CTX *frame = talloc_stackframe();
 207         int opt;
 208         REGF_FILE *infile, *outfile;
 209         REGF_NK_REC *nk;
 210         char *orig_filename, *new_filename;
 211         struct poptOption long_options[] = {
 212                 POPT_AUTOHELP
 213                 { "change-sid", 'c', POPT_ARG_STRING, NULL, 'c', "Provides SID to change" },
 214                 { "new-sid", 'n', POPT_ARG_STRING, NULL, 'n', "Provides SID to change to" },
 215                 { "verbose", 'v', POPT_ARG_NONE, &opt_verbose, 'v', "Verbose output" },
 216                 POPT_COMMON_SAMBA
 217                 POPT_COMMON_VERSION
 218                 POPT_TABLEEND
 219         };
 220         poptContext pc;
 221
 222         load_case_tables();
 223
 224         /* setup logging options */
 225
 226         setup_logging( "profiles", DEBUG_STDERR);
 227
 228         pc = poptGetContext("profiles", argc, argv, long_options,
 229                 POPT_CONTEXT_KEEP_FIRST);
 230
 231         poptSetOtherOptionHelp(pc, "<profilefile>");
 232
 233         /* Now, process the arguments */
 234
 235         while ((opt = poptGetNextOpt(pc)) != -1) {
 236                 switch (opt) {
 237                 case 'c':
 238                         change = 1;
 239                         if (!string_to_sid(&old_sid, poptGetOptArg(pc))) {
 240                                 fprintf(stderr, "Argument to -c should be a SID in form of S-1-5-...\n");
 241                                 poptPrintUsage(pc, stderr, 0);
 242                                 exit(254);
 243                         }
 244                         break;
 245
 246                 case 'n':
 247                         new_val = 1;
 248                         if (!string_to_sid(&new_sid, poptGetOptArg(pc))) {
 249                                 fprintf(stderr, "Argument to -n should be a SID in form of S-1-5-...\n");
 250                                 poptPrintUsage(pc, stderr, 0);
 251                                 exit(253);
 252                         }
 253                         break;
 254
 255                 }
 256         }
 257
 258         poptGetArg(pc);
 259
 260         if (!poptPeekArg(pc)) {
 261                 poptPrintUsage(pc, stderr, 0);
 262                 exit(1);
 263         }
 264
 265         if ((!change && new_val) || (change && !new_val)) {
 266                 fprintf(stderr, "You must specify both -c and -n if one or the other is set!\n");
 267                 poptPrintUsage(pc, stderr, 0);
 268                 exit(252);
 269         }
 270
 271         orig_filename = talloc_strdup(frame, poptPeekArg(pc));
 272         if (!orig_filename) {
 273                 exit(ENOMEM);
 274         }
 275         new_filename = talloc_asprintf(frame,
 276                                         "%s.new",
 277                                         orig_filename);
 278         if (!new_filename) {
 279                 exit(ENOMEM);
 280         }
 281
 282         if (!(infile = regfio_open( orig_filename, O_RDONLY, 0))) {
 283                 fprintf( stderr, "Failed to open %s!\n", orig_filename );
 284                 fprintf( stderr, "Error was (%s)\n", strerror(errno) );
 285                 exit (1);
 286         }
 287
 288         if ( !(outfile = regfio_open( new_filename, (O_RDWR|O_CREAT|O_TRUNC),
 289                                       (S_IRUSR|S_IWUSR) )) ) {
 290                 fprintf( stderr, "Failed to open new file %s!\n", new_filename );
 291                 fprintf( stderr, "Error was (%s)\n", strerror(errno) );
 292                 exit (1);
 293         }
 294
 295         /* actually do the update now */
 296
 297         if ((nk = regfio_rootkey( infile )) == NULL) {
 298                 fprintf(stderr, "Could not get rootkey\n");
 299                 exit(3);
 300         }
 301
 302         if (!copy_registry_tree( infile, nk, NULL, outfile, "")) {
 303                 fprintf(stderr, "Failed to write updated registry file!\n");
 304                 exit(2);
 305         }
 306
 307         /* cleanup */
 308
 309         regfio_close(infile);
 310         regfio_close(outfile);
 311
 312         poptFreeContext(pc);
 313
 314         TALLOC_FREE(frame);
 315         return 0;
 316 }