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