source4/lib/registry/hive.c

   1
   2 /*
   3    Unix SMB/CIFS implementation.
   4    Registry hive interface
   5    Copyright (C) Jelmer Vernooij                                  2003-2007.
   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, write to the Free Software
  19    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20 */
  21
  22 #include "includes.h"
  23 #include "hive.h"
  24 #include "system/filesys.h"
  25 #include "param/param.h"
  26
  27 /** Open a registry file/host/etc */
  28 _PUBLIC_ WERROR reg_open_hive(TALLOC_CTX *parent_ctx, const char *location,
  29                               struct auth_session_info *session_info,
  30                               struct cli_credentials *credentials,
  31                               struct loadparm_context *lp_ctx,
  32                               struct hive_key **root)
  33 {
  34         int fd, num;
  35         char peek[20];
  36
  37         /* Check for directory */
  38         if (directory_exist(location)) {
  39                 return reg_open_directory(parent_ctx, location, root);
  40         }
  41
  42         fd = open(location, O_RDWR);
  43         if (fd == -1) {
  44                 if (errno == ENOENT)
  45                         return WERR_BADFILE;
  46                 return WERR_BADFILE;
  47         }
  48
  49         num = read(fd, peek, 20);
  50         if (num == -1) {
  51                 return WERR_BADFILE;
  52         }
  53
  54         if (!strncmp(peek, "regf", 4)) {
  55                 close(fd);
  56                 return reg_open_regf_file(parent_ctx, location, lp_iconv_convenience(lp_ctx), root);
  57         } else if (!strncmp(peek, "TDB file", 8)) {
  58                 close(fd);
  59                 return reg_open_ldb_file(parent_ctx, location, session_info,
  60                                          credentials, lp_ctx, root);
  61         }
  62
  63         return WERR_BADFILE;
  64 }
  65
  66 _PUBLIC_ WERROR hive_key_get_info(TALLOC_CTX *mem_ctx,
  67                                   const struct hive_key *key,
  68                                   const char **classname, uint32_t *num_subkeys,
  69                                   uint32_t *num_values,
  70                                   NTTIME *last_change_time,
  71                                   uint32_t *max_subkeynamelen,
  72                                   uint32_t *max_valnamelen,
  73                                   uint32_t *max_valbufsize)
  74 {
  75         return key->ops->get_key_info(mem_ctx, key, classname, num_subkeys,
  76                                       num_values, last_change_time,
  77                                       max_subkeynamelen,
  78                                       max_valnamelen, max_valbufsize);
  79 }
  80
  81 _PUBLIC_ WERROR hive_key_add_name(TALLOC_CTX *ctx,
  82                                   const struct hive_key *parent_key,
  83                                   const char *name, const char *classname,
  84                                   struct security_descriptor *desc,
  85                                   struct hive_key **key)
  86 {
  87         SMB_ASSERT(strchr(name, '\\') == NULL);
  88
  89         return parent_key->ops->add_key(ctx, parent_key, name, classname,
  90                                         desc, key);
  91 }
  92
  93 _PUBLIC_ WERROR hive_key_del(const struct hive_key *key, const char *name)
  94 {
  95         return key->ops->del_key(key, name);
  96 }
  97
  98 _PUBLIC_ WERROR hive_get_key_by_name(TALLOC_CTX *mem_ctx,
  99                                      const struct hive_key *key,
 100                                      const char *name,
 101                                      struct hive_key **subkey)
 102 {
 103         return key->ops->get_key_by_name(mem_ctx, key, name, subkey);
 104 }
 105
 106 WERROR hive_enum_key(TALLOC_CTX *mem_ctx,
 107                      const struct hive_key *key, uint32_t idx,
 108                      const char **name,
 109                      const char **classname,
 110                      NTTIME *last_mod_time)
 111 {
 112         return key->ops->enum_key(mem_ctx, key, idx, name, classname,
 113                                   last_mod_time);
 114 }
 115
 116 WERROR hive_key_set_value(struct hive_key *key, const char *name, uint32_t type,
 117                                           const DATA_BLOB data)
 118 {
 119         if (key->ops->set_value == NULL)
 120                 return WERR_NOT_SUPPORTED;
 121
 122         return key->ops->set_value(key, name, type, data);
 123 }
 124
 125 WERROR hive_get_value(TALLOC_CTX *mem_ctx,
 126                       struct hive_key *key, const char *name,
 127                       uint32_t *type, DATA_BLOB *data)
 128 {
 129         if (key->ops->get_value_by_name == NULL)
 130                 return WERR_NOT_SUPPORTED;
 131
 132         return key->ops->get_value_by_name(mem_ctx, key, name, type, data);
 133 }
 134
 135 WERROR hive_get_value_by_index(TALLOC_CTX *mem_ctx,
 136                                struct hive_key *key, uint32_t idx,
 137                                const char **name,
 138                                uint32_t *type, DATA_BLOB *data)
 139 {
 140         if (key->ops->enum_value == NULL)
 141                 return WERR_NOT_SUPPORTED;
 142
 143         return key->ops->enum_value(mem_ctx, key, idx, name, type, data);
 144 }
 145
 146
 147 WERROR hive_key_del_value(struct hive_key *key, const char *name)
 148 {
 149         if (key->ops->delete_value == NULL)
 150                 return WERR_NOT_SUPPORTED;
 151
 152         return key->ops->delete_value(key, name);
 153 }
 154
 155 WERROR hive_key_flush(struct hive_key *key)
 156 {
 157         if (key->ops->flush_key == NULL)
 158                 return WERR_OK;
 159
 160         return key->ops->flush_key(key);
 161 }