source3/registry/reg_import.c

   1 /*
   2  * Samba Unix/Linux SMB client library
   3  * Adapter to use reg_parse with the registry api
   4  *
   5  * Copyright (C) Gregor Beck 2010
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 3 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19  */
  20
  21 #include "includes.h"
  22 #include "reg_parse.h"
  23 #include "reg_import.h"
  24 #include "registry.h"
  25 #include "registry/reg_objects.h"
  26 #include <assert.h>
  27
  28 /* Debuglevel for tracing */
  29 static const int TL = 2;
  30
  31 struct reg_import {
  32         struct reg_parse_callback reg_parse_callback;
  33         struct reg_import_callback call;
  34         void *open_key;
  35 };
  36
  37 static int reg_parse_callback_key(struct reg_import *cb_private,
  38                                   const char *key[], size_t n, bool del);
  39
  40 static int reg_parse_callback_val(struct reg_import *cb_private,
  41                                   const char *name, uint32_t type,
  42                                   const uint8_t *data, uint32_t len);
  43
  44 static int reg_parse_callback_val_registry_value(struct reg_import *cb_private,
  45                                                  const char *name,
  46                                                  uint32_t type,
  47                                                  const uint8_t *data,
  48                                                  uint32_t len);
  49
  50 static int reg_parse_callback_val_regval_blob(struct reg_import *cb_private,
  51                                               const char *name, uint32_t type,
  52                                               const uint8_t *data,
  53                                               uint32_t len);
  54
  55 static int reg_parse_callback_val_del(struct reg_import *cb_private,
  56                                       const char *name);
  57
  58 static int reg_parse_callback_comment(struct reg_import *cb_private,
  59                                       const char *txt);
  60
  61
  62 /*******************************************************************************/
  63
  64 int reg_parse_callback_key(struct reg_import *p,
  65                            const char *key[], size_t n, bool del)
  66 {
  67         WERROR werr = WERR_OK;
  68
  69         DEBUG(TL, ("%s: %s\n", __FUNCTION__, key[0]));
  70
  71         if (p->open_key != NULL) {
  72                 werr = p->call.closekey(p->call.data, p->open_key);
  73                 p->open_key = NULL;
  74                 if (!W_ERROR_IS_OK(werr)) {
  75                         DEBUG(0, ("closekey failed: %s\n", win_errstr(werr)));
  76                 }
  77         }
  78
  79         if (del) {
  80                 werr = p->call.deletekey(p->call.data, NULL, key[0]);
  81                 if (W_ERROR_EQUAL(werr, WERR_FILE_NOT_FOUND)) {
  82                         /* the key didn't exist, treat as success */
  83                         werr = WERR_OK;
  84                 }
  85                 if (!W_ERROR_IS_OK(werr)) {
  86                         DEBUG(0, ("deletekey %s failed: %s\n",
  87                                   key[0], win_errstr(werr)));
  88                 }
  89         } else {
  90                 bool existing;
  91                 werr = p->call.createkey(p->call.data, NULL, key[0],
  92                                          &p->open_key, &existing);
  93                 if (W_ERROR_IS_OK(werr)) {
  94                         DEBUG(TL, ("createkey %s %s\n",
  95                                   existing ? "opened" : "created", key[0]));
  96                 } else {
  97                         DEBUG(0, ("createkey %s failed: %s\n",
  98                                   key[0], win_errstr(werr)));
  99                 }
 100         }
 101
 102         return W_ERROR_IS_OK(werr) ? 0 : -1;
 103 }
 104
 105 #define DEBUG_ADD_HEX(LEV, PTR, LEN)                                    \
 106         do {                                                            \
 107                 int i;                                                  \
 108                 const unsigned char* ptr = (const unsigned char*)PTR;   \
 109                 for (i=0; i<LEN; i++) {                                 \
 110                         DEBUGADD(LEV, ("'%c'(%02x)%s",                  \
 111                                        isprint(ptr[i]) ? ptr[i] : '.',  \
 112                                        (unsigned)ptr[i],                \
 113                                        ((i+1 < LEN) && (i+1)%8)         \
 114                                        ? ",  " : "\n"));                \
 115                 }                                                       \
 116         } while(0)
 117
 118 /*----------------------------------------------------------------------------*/
 119 int reg_parse_callback_val(struct reg_import *p,
 120                            const char *name, uint32_t type,
 121                            const uint8_t *data, uint32_t len)
 122 {
 123         WERROR werr = WERR_OK;
 124
 125         DEBUG(TL, ("%s(%x): >%s< = [%x]\n",  __FUNCTION__, type, name, len));
 126         DEBUG_ADD_HEX(TL, data, len);
 127
 128         werr = p->call.setval.blob(p->call.data, p->open_key, name, type,
 129                                    data, len);
 130         if (!W_ERROR_IS_OK(werr)) {
 131                 DEBUG(0, ("setval %s failed: %s\n",
 132                           name, win_errstr(werr)));
 133         }
 134
 135         return W_ERROR_IS_OK(werr) ? 0 : -1;
 136 }
 137
 138 /*----------------------------------------------------------------------------*/
 139 int reg_parse_callback_val_registry_value(struct reg_import *p,
 140                                           const char *name, uint32_t type,
 141                                           const uint8_t *data, uint32_t len)
 142 {
 143         WERROR werr = WERR_OK;
 144         struct registry_value val = {
 145                 .type = type,
 146                 .data = data_blob_talloc(p, data, len),
 147         };
 148
 149         DEBUG(TL, ("%s(%x): >%s< = [%x]\n", __FUNCTION__, type, name, len));
 150         DEBUG_ADD_HEX(TL, data, len);
 151
 152         werr = p->call.setval.registry_value(p->call.data, p->open_key,
 153                                              name, &val);
 154         if (!W_ERROR_IS_OK(werr)) {
 155                 DEBUG(0, ("setval %s failed: %s\n",
 156                           name, win_errstr(werr)));
 157         }
 158
 159         data_blob_free(&val.data);
 160         return W_ERROR_IS_OK(werr) ? 0 : -1;
 161 }
 162
 163 /*----------------------------------------------------------------------------*/
 164 int reg_parse_callback_val_regval_blob(struct reg_import *p,
 165                                        const char *name, uint32_t type,
 166                                        const uint8_t *data, uint32_t len)
 167 {
 168         WERROR werr = WERR_OK;
 169         void* mem_ctx = talloc_new(p);
 170         struct regval_blob *v = NULL;
 171
 172         DEBUG(TL, ("%s(%x): >%s< = [%x]\n", __FUNCTION__, type, name, len));
 173         DEBUG_ADD_HEX(TL, data, len);
 174
 175         v = regval_compose(mem_ctx, name, type, data, len);
 176         if (v == NULL) {
 177                 DEBUG(0, ("regval_compose %s failed\n", name));
 178                 werr = WERR_NOT_ENOUGH_MEMORY;
 179                 goto done;
 180         }
 181
 182         werr = p->call.setval.regval_blob(p->call.data, p->open_key, v);
 183         if (!W_ERROR_IS_OK(werr)) {
 184                 DEBUG(0, ("setval %s failed: %s\n",
 185                           name, win_errstr(werr)));
 186         }
 187
 188 done:
 189         talloc_free(mem_ctx);
 190
 191         return W_ERROR_IS_OK(werr) ? 0 : -1;
 192 }
 193
 194
 195 /*----------------------------------------------------------------------------*/
 196
 197 int reg_parse_callback_val_del(struct reg_import *p,
 198                                const char *name)
 199 {
 200         WERROR werr = WERR_OK;
 201
 202         DEBUG(TL, ("%s: %s\n", __FUNCTION__, name));
 203
 204         werr = p->call.deleteval(p->call.data, p->open_key, name);
 205         if (!W_ERROR_IS_OK(werr)) {
 206                 DEBUG(0, ("deleteval %s failed: %s\n",
 207                           name, win_errstr(werr)));
 208         }
 209
 210         return W_ERROR_IS_OK(werr) ? 0 : -1;
 211 }
 212
 213
 214 int reg_parse_callback_comment(struct reg_import *cb_private,
 215                                const char *txt)
 216 {
 217         DEBUG(TL, ("%s: %s\n", __FUNCTION__, txt));
 218         return 0;
 219 }
 220
 221 /******************************************************************************/
 222 static int nop(void *data)
 223 {
 224         return 0;
 225 }
 226
 227
 228 struct reg_parse_callback *reg_import_adapter(TALLOC_CTX *talloc_ctx,
 229                                               struct reg_import_callback cb)
 230 {
 231         struct reg_parse_callback *ret;
 232         struct reg_import *p = talloc_zero(talloc_ctx, struct reg_import);
 233         if (p == NULL) {
 234                 goto fail;
 235         }
 236         if (cb.openkey == NULL) {
 237                 cb.openkey = (reg_import_callback_openkey_t)&nop;
 238         }
 239         if (cb.closekey == NULL) {
 240                 cb.closekey = (reg_import_callback_closekey_t)&nop;
 241         }
 242         if (cb.createkey == NULL) {
 243                 cb.createkey = (reg_import_callback_createkey_t)&nop;
 244         }
 245         if (cb.deletekey == NULL) {
 246                 cb.deletekey = (reg_import_callback_deletekey_t)&nop;
 247         }
 248         if (cb.deleteval == NULL) {
 249                 cb.deleteval = (reg_import_callback_deleteval_t)&nop;
 250         }
 251
 252         p->call = cb;
 253
 254         ret = &p->reg_parse_callback;
 255         ret->key     = (reg_parse_callback_key_t)     &reg_parse_callback_key;
 256         ret->val_del = (reg_parse_callback_val_del_t) &reg_parse_callback_val_del;
 257         ret->comment = (reg_parse_callback_comment_t) &reg_parse_callback_comment;
 258         ret->data = p;
 259
 260         switch (cb.setval_type) {
 261         case BLOB:
 262                 assert(cb.setval.blob != NULL);
 263                 ret->val = (reg_parse_callback_val_t) &reg_parse_callback_val;
 264                 break;
 265         case REGISTRY_VALUE:
 266                 assert(cb.setval.registry_value != NULL);
 267                 ret->val = (reg_parse_callback_val_t) &reg_parse_callback_val_registry_value;
 268                 break;
 269         case REGVAL_BLOB:
 270                 assert(cb.setval.regval_blob != NULL);
 271                 ret->val = (reg_parse_callback_val_t) &reg_parse_callback_val_regval_blob;
 272                 break;
 273         case NONE:
 274                 ret->val = NULL;
 275                 break;
 276         default:
 277                 assert(false);
 278         }
 279
 280         assert((struct reg_parse_callback *)p == ret);
 281         return ret;
 282 fail:
 283         talloc_free(p);
 284         return NULL;
 285 }