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