source/lib/registry/registry.h

   1 /*
   2    Unix SMB/CIFS implementation.
   3    Registry interface
   4    Copyright (C) Gerald Carter                        2002.
   5    Copyright (C) Jelmer Vernooij                                          2003-2004.
   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 #ifndef _REGISTRY_H /* _REGISTRY_H */
  23 #define _REGISTRY_H
  24
  25 #include "core.h"
  26 #include "talloc/talloc.h"
  27 #include "librpc/gen_ndr/security.h"
  28
  29 /* Handles for the predefined keys */
  30 #define HKEY_CLASSES_ROOT                0x80000000
  31 #define HKEY_CURRENT_USER                0x80000001
  32 #define HKEY_LOCAL_MACHINE               0x80000002
  33 #define HKEY_USERS                               0x80000003
  34 #define HKEY_PERFORMANCE_DATA    0x80000004
  35 #define HKEY_CURRENT_CONFIG              0x80000005
  36 #define HKEY_DYN_DATA                    0x80000006
  37 #define HKEY_PERFORMANCE_TEXT    0x80000050
  38 #define HKEY_PERFORMANCE_NLSTEXT 0x80000060
  39
  40 struct reg_predefined_key {
  41         uint32_t handle;
  42         const char *name;
  43 };
  44
  45 extern const struct reg_predefined_key reg_predefined_keys[];
  46
  47 #define REG_DELETE              -1
  48
  49 /*
  50  * The general idea here is that every backend provides a 'hive'. Combining
  51  * various hives gives you a complete registry like windows has
  52  */
  53
  54 #define REGISTRY_INTERFACE_VERSION 1
  55
  56 /* structure to store the registry handles */
  57 struct registry_key
  58 {
  59   const char *name;
  60   const char *path;
  61   const char *class_name;
  62   NTTIME last_mod;
  63   struct registry_hive *hive;
  64   void *backend_data;
  65 };
  66
  67 struct registry_value
  68 {
  69   const char *name;
  70   unsigned int data_type;
  71   DATA_BLOB data;
  72 };
  73
  74 /* FIXME */
  75 typedef void (*reg_key_notification_function) (void);
  76 typedef void (*reg_value_notification_function) (void);
  77
  78 /*
  79  * Container for function pointers to enumeration routines
  80  * for virtual registry view
  81  *
  82  * Backends can provide :
  83  *  - just one hive (example: nt4, w95)
  84  *  - several hives (example: rpc).
  85  *
  86  * Backends should always do case-insensitive compares
  87  * (everything is case-insensitive but case-preserving,
  88  * just like the FS)
  89  *
  90  * There is no save function as all operations are expected to
  91  * be atomic.
  92  */
  93
  94 struct hive_operations {
  95         const char *name;
  96
  97         /* Implement this one */
  98         WERROR (*open_hive) (struct registry_hive *, struct registry_key **);
  99
 100         /* Or this one */
 101         WERROR (*open_key) (TALLOC_CTX *, const struct registry_key *, const char *name, struct registry_key **);
 102
 103         WERROR (*num_subkeys) (const struct registry_key *, uint32_t *count);
 104         WERROR (*num_values) (const struct registry_key *, uint32_t *count);
 105         WERROR (*get_subkey_by_index) (TALLOC_CTX *, const struct registry_key *, int idx, struct registry_key **);
 106
 107         /* Can not contain more than one level */
 108         WERROR (*get_subkey_by_name) (TALLOC_CTX *, const struct registry_key *, const char *name, struct registry_key **);
 109         WERROR (*get_value_by_index) (TALLOC_CTX *, const struct registry_key *, int idx, struct registry_value **);
 110
 111         /* Can not contain more than one level */
 112         WERROR (*get_value_by_name) (TALLOC_CTX *, const struct registry_key *, const char *name, struct registry_value **);
 113
 114         /* Security control */
 115         WERROR (*key_get_sec_desc) (TALLOC_CTX *, const struct registry_key *, struct security_descriptor **);
 116         WERROR (*key_set_sec_desc) (const struct registry_key *, const struct security_descriptor *);
 117
 118         /* Notification */
 119         WERROR (*request_key_change_notify) (const struct registry_key *, reg_key_notification_function);
 120         WERROR (*request_value_change_notify) (const struct registry_value *, reg_value_notification_function);
 121
 122         /* Key management */
 123         WERROR (*add_key)(TALLOC_CTX *, const struct registry_key *, const char *name, uint32_t access_mask, struct security_descriptor *, struct registry_key **);
 124         WERROR (*del_key)(const struct registry_key *, const char *name);
 125         WERROR (*flush_key) (const struct registry_key *);
 126
 127         /* Value management */
 128         WERROR (*set_value)(const struct registry_key *, const char *name, uint32_t type, const DATA_BLOB data);
 129         WERROR (*del_value)(const struct registry_key *, const char *valname);
 130 };
 131
 132 struct cli_credentials;
 133
 134 struct registry_hive
 135 {
 136         const struct hive_operations *functions;
 137         struct registry_key *root;
 138         struct auth_session_info *session_info;
 139         struct cli_credentials *credentials;
 140         void *backend_data;
 141         const char *location;
 142 };
 143
 144 /* Handle to a full registry
 145  * contains zero or more hives */
 146 struct registry_context {
 147     void *backend_data;
 148         struct cli_credentials *credentials;
 149         struct auth_session_info *session_info;
 150         WERROR (*get_predefined_key) (struct registry_context *, uint32_t hkey, struct registry_key **);
 151 };
 152
 153 struct reg_init_function_entry {
 154         const struct hive_operations *hive_functions;
 155         struct reg_init_function_entry *prev, *next;
 156 };
 157
 158 /* Representing differences between registry files */
 159
 160 struct reg_diff_value
 161 {
 162         const char *name;
 163         enum { REG_DIFF_DEL_VAL, REG_DIFF_SET_VAL } changetype;
 164         uint32_t type;
 165         DATA_BLOB data;
 166 };
 167
 168 struct reg_diff_key
 169 {
 170         const char *name;
 171         enum { REG_DIFF_CHANGE_KEY, REG_DIFF_DEL_KEY } changetype;
 172         uint32_t numvalues;
 173         struct reg_diff_value *values;
 174 };
 175
 176 struct reg_diff
 177 {
 178         const char *format;
 179         uint32_t numkeys;
 180         struct reg_diff_key *keys;
 181 };
 182
 183 struct auth_session_info;
 184 struct event_context;
 185
 186 _PUBLIC_ WERROR reg_open_local (TALLOC_CTX *mem_ctx,
 187                                 struct registry_context **ctx,
 188                                 struct auth_session_info *session_info,
 189                                 struct cli_credentials *credentials);
 190
 191 _PUBLIC_ NTSTATUS registry_register(const void *_hive_ops);
 192 _PUBLIC_ NTSTATUS registry_init(void);
 193 _PUBLIC_ BOOL reg_has_backend(const char *backend);
 194 _PUBLIC_ int reg_list_predefs(TALLOC_CTX *mem_ctx, char ***predefs, uint32_t **hkeys);
 195 _PUBLIC_ const char *reg_get_predef_name(uint32_t hkey);
 196 _PUBLIC_ WERROR reg_get_predefined_key_by_name(struct registry_context *ctx, const char *name, struct registry_key **key);
 197 _PUBLIC_ WERROR reg_get_predefined_key(struct registry_context *ctx, uint32_t hkey, struct registry_key **key);
 198 _PUBLIC_ WERROR reg_open_hive(TALLOC_CTX *parent_ctx, const char *backend, const char *location, struct auth_session_info *session_info, struct cli_credentials *credentials, struct registry_key **root);
 199 _PUBLIC_ WERROR reg_open_key(TALLOC_CTX *mem_ctx, struct registry_key *parent, const char *name, struct registry_key **result);
 200 _PUBLIC_ WERROR reg_key_get_value_by_index(TALLOC_CTX *mem_ctx, const struct registry_key *key, int idx, struct registry_value **val);
 201 _PUBLIC_ WERROR reg_key_num_subkeys(const struct registry_key *key, uint32_t *count);
 202 _PUBLIC_ WERROR reg_key_num_values(const struct registry_key *key, uint32_t *count);
 203 _PUBLIC_ WERROR reg_key_get_subkey_by_index(TALLOC_CTX *mem_ctx, const struct registry_key *key, int idx, struct registry_key **subkey);
 204 WERROR reg_key_get_subkey_by_name(TALLOC_CTX *mem_ctx, const struct registry_key *key, const char *name, struct registry_key **subkey);
 205 _PUBLIC_ WERROR reg_key_get_value_by_name(TALLOC_CTX *mem_ctx, const struct registry_key *key, const char *name, struct registry_value **val);
 206 _PUBLIC_ WERROR reg_key_del(struct registry_key *parent, const char *name);
 207 _PUBLIC_ WERROR reg_key_add_name(TALLOC_CTX *mem_ctx, const struct registry_key *parent, const char *name, uint32_t access_mask, struct security_descriptor *desc, struct registry_key **newkey);
 208 _PUBLIC_ WERROR reg_val_set(struct registry_key *key, const char *value, uint32_t type, DATA_BLOB data);
 209 _PUBLIC_ WERROR reg_get_sec_desc(TALLOC_CTX *ctx, const struct registry_key *key, struct security_descriptor **secdesc);
 210 _PUBLIC_ WERROR reg_del_value(const struct registry_key *key, const char *valname);
 211 _PUBLIC_ WERROR reg_key_flush(const struct registry_key *key);
 212 _PUBLIC_ WERROR reg_key_subkeysizes(const struct registry_key *key, uint32_t *max_subkeylen, uint32_t *max_subkeysize);
 213 _PUBLIC_ WERROR reg_key_valuesizes(const struct registry_key *key, uint32_t *max_valnamelen, uint32_t *max_valbufsize);
 214
 215 /* Utility functions */
 216
 217 _PUBLIC_ const char *str_regtype(int type);
 218 _PUBLIC_ char *reg_val_data_string(TALLOC_CTX *mem_ctx, uint32_t type, DATA_BLOB *data);
 219 _PUBLIC_ char *reg_val_description(TALLOC_CTX *mem_ctx, struct registry_value *val) ;
 220 _PUBLIC_ BOOL reg_string_to_val(TALLOC_CTX *mem_ctx, const char *type_str, const char *data_str, uint32_t *type, DATA_BLOB *data);
 221 char *reg_path_win2unix(char *path) ;
 222 char *reg_path_unix2win(char *path) ;
 223 WERROR reg_open_key_abs(TALLOC_CTX *mem_ctx, struct registry_context *handle, const char *name, struct registry_key **result);
 224 WERROR reg_key_del_abs(struct registry_context *ctx, const char *path);
 225 WERROR reg_key_add_abs(TALLOC_CTX *mem_ctx, struct registry_context *ctx, const char *path, uint32_t access_mask, struct security_descriptor *sec_desc, struct registry_key **result);
 226
 227
 228 /* Patch files */
 229
 230 _PUBLIC_ struct reg_diff *reg_generate_diff(TALLOC_CTX *mem_ctx, struct registry_context *ctx1, struct registry_context *ctx2);
 231 _PUBLIC_ WERROR reg_diff_save(const struct reg_diff *diff, const char *filename);
 232 _PUBLIC_ struct reg_diff *reg_diff_load(TALLOC_CTX *ctx, const char *fn);
 233 _PUBLIC_ BOOL reg_diff_apply (const struct reg_diff *diff, struct registry_context *ctx);
 234
 235 #endif /* _REGISTRY_H */