* Unix SMB/CIFS implementation.
* Virtual Windows Registry Layer
* Copyright (C) Volker Lendecke 2006
+ * Copyright (C) Michael Adam 2007-2008
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
/* Attempt to wrap the existing API in a more winreg.idl-like way */
+/*
+ * Here is a list of winreg.idl functions and corresponding implementations
+ * provided here:
+ *
+ * 0x00 winreg_OpenHKCR
+ * 0x01 winreg_OpenHKCU
+ * 0x02 winreg_OpenHKLM
+ * 0x03 winreg_OpenHKPD
+ * 0x04 winreg_OpenHKU
+ * 0x05 winreg_CloseKey
+ * 0x06 winreg_CreateKey reg_createkey
+ * 0x07 winreg_DeleteKey reg_deletekey
+ * 0x08 winreg_DeleteValue reg_deletevalue
+ * 0x09 winreg_EnumKey reg_enumkey
+ * 0x0a winreg_EnumValue reg_enumvalue
+ * 0x0b winreg_FlushKey
+ * 0x0c winreg_GetKeySecurity reg_getkeysecurity
+ * 0x0d winreg_LoadKey
+ * 0x0e winreg_NotifyChangeKeyValue
+ * 0x0f winreg_OpenKey reg_openkey
+ * 0x10 winreg_QueryInfoKey reg_queryinfokey
+ * 0x11 winreg_QueryValue reg_queryvalue
+ * 0x12 winreg_ReplaceKey
+ * 0x13 winreg_RestoreKey reg_restorekey
+ * 0x14 winreg_SaveKey reg_savekey
+ * 0x15 winreg_SetKeySecurity reg_setkeysecurity
+ * 0x16 winreg_SetValue reg_setvalue
+ * 0x17 winreg_UnLoadKey
+ * 0x18 winreg_InitiateSystemShutdown
+ * 0x19 winreg_AbortSystemShutdown
+ * 0x1a winreg_GetVersion reg_getversion
+ * 0x1b winreg_OpenHKCC
+ * 0x1c winreg_OpenHKDD
+ * 0x1d winreg_QueryMultipleValues
+ * 0x1e winreg_InitiateSystemShutdownEx
+ * 0x1f winreg_SaveKeyEx
+ * 0x20 winreg_OpenHKPT
+ * 0x21 winreg_OpenHKPN
+ * 0x22 winreg_QueryMultipleValues2
+ *
+ */
+
#include "includes.h"
+#include "regfio.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_REGISTRY
+
+/**********************************************************************
+ * Helper functions
+ **********************************************************************/
+
static WERROR fill_value_cache(struct registry_key *key)
{
if (key->values != NULL) {
/* Look up the table of registry I/O operations */
- if ( !(key->hook = reghook_cache_find( key->name )) ) {
- DEBUG(0,("reg_open_onelevel: Failed to assigned a "
- "REGISTRY_HOOK to [%s]\n", key->name ));
+ if ( !(key->ops = reghook_cache_find( key->name )) ) {
+ DEBUG(0,("reg_open_onelevel: Failed to assign "
+ "REGISTRY_OPS to [%s]\n", key->name ));
result = WERR_BADFILE;
goto done;
}
pkey);
}
+
+/**********************************************************************
+ * The API functions
+ **********************************************************************/
+
WERROR reg_openkey(TALLOC_CTX *mem_ctx, struct registry_key *parent,
const char *name, uint32 desired_access,
struct registry_key **pkey)
TALLOC_CTX *mem_ctx;
char *path, *end;
WERROR err;
- REGSUBKEY_CTR *subkeys;
if (!(mem_ctx = talloc_new(ctx))) return WERR_NOMEM;
* Actually create the subkey
*/
- if (!(subkeys = TALLOC_ZERO_P(mem_ctx, REGSUBKEY_CTR))) {
- err = WERR_NOMEM;
- goto done;
- }
-
err = fill_subkey_cache(create_parent);
if (!W_ERROR_IS_OK(err)) goto done;
return WERR_OK;
}
+static WERROR reg_value_exists(struct registry_key *key, const char *name)
+{
+ int i;
+
+ for (i=0; i<key->values->num_values; i++) {
+ if (strequal(key->values->values[i]->valuename, name)) {
+ return WERR_OK;
+ }
+ }
+
+ return WERR_BADFILE;
+}
+
WERROR reg_deletevalue(struct registry_key *key, const char *name)
{
WERROR err;
return err;
}
+ err = reg_value_exists(key, name);
+ if (!W_ERROR_IS_OK(err)) {
+ return err;
+ }
+
regval_ctr_delvalue(key->values, name);
if (!store_reg_values(key->key, key->values)) {
return WERR_OK;
}
+WERROR reg_getkeysecurity(TALLOC_CTX *mem_ctx, struct registry_key *key,
+ struct security_descriptor **psecdesc)
+{
+ return regkey_get_secdesc(mem_ctx, key->key, psecdesc);
+}
+
+WERROR reg_setkeysecurity(struct registry_key *key,
+ struct security_descriptor *psecdesc)
+{
+ return regkey_set_secdesc(key->key, psecdesc);
+}
+
+WERROR reg_getversion(uint32_t *version)
+{
+ if (version == NULL) {
+ return WERR_INVALID_PARAM;
+ }
+
+ *version = 0x00000005; /* Windows 2000 registry API version */
+ return WERR_OK;
+}
+
+/*******************************************************************
+ Note: topkeypat is the *full* path that this *key will be
+ loaded into (including the name of the key)
+ ********************************************************************/
+
+static WERROR reg_load_tree(REGF_FILE *regfile, const char *topkeypath,
+ REGF_NK_REC *key)
+{
+ REGF_NK_REC *subkey;
+ REGISTRY_KEY registry_key;
+ REGVAL_CTR *values;
+ REGSUBKEY_CTR *subkeys;
+ int i;
+ char *path = NULL;
+ WERROR result = WERR_OK;
+
+ /* initialize the REGISTRY_KEY structure */
+
+ registry_key.ops = reghook_cache_find(topkeypath);
+ if (!registry_key.ops) {
+ DEBUG(0, ("reg_load_tree: Failed to assign REGISTRY_OPS "
+ "to [%s]\n", topkeypath));
+ return WERR_BADFILE;
+ }
+
+ registry_key.name = talloc_strdup(regfile->mem_ctx, topkeypath);
+ if (!registry_key.name) {
+ DEBUG(0, ("reg_load_tree: Talloc failed for reg_key.name!\n"));
+ return WERR_NOMEM;
+ }
+
+ /* now start parsing the values and subkeys */
+
+ subkeys = TALLOC_ZERO_P(regfile->mem_ctx, REGSUBKEY_CTR);
+ if (subkeys == NULL) {
+ return WERR_NOMEM;
+ }
+
+ values = TALLOC_ZERO_P(subkeys, REGVAL_CTR);
+ if (values == NULL) {
+ return WERR_NOMEM;
+ }
+
+ /* copy values into the REGVAL_CTR */
+
+ for (i=0; i<key->num_values; i++) {
+ regval_ctr_addvalue(values, key->values[i].valuename,
+ key->values[i].type,
+ (char*)key->values[i].data,
+ (key->values[i].data_size & ~VK_DATA_IN_OFFSET));
+ }
+
+ /* copy subkeys into the REGSUBKEY_CTR */
+
+ key->subkey_index = 0;
+ while ((subkey = regfio_fetch_subkey( regfile, key ))) {
+ result = regsubkey_ctr_addkey(subkeys, subkey->keyname);
+ if (!W_ERROR_IS_OK(result)) {
+ TALLOC_FREE(subkeys);
+ return result;
+ }
+ }
+
+ /* write this key and values out */
+
+ if (!store_reg_values(®istry_key, values)
+ || !store_reg_keys(®istry_key, subkeys))
+ {
+ DEBUG(0,("reg_load_tree: Failed to load %s!\n", topkeypath));
+ result = WERR_REG_IO_FAILURE;
+ }
+
+ TALLOC_FREE(subkeys);
+
+ if (!W_ERROR_IS_OK(result)) {
+ return result;
+ }
+
+ /* now continue to load each subkey registry tree */
+
+ key->subkey_index = 0;
+ while ((subkey = regfio_fetch_subkey(regfile, key))) {
+ path = talloc_asprintf(regfile->mem_ctx,
+ "%s\\%s",
+ topkeypath,
+ subkey->keyname);
+ if (path == NULL) {
+ return WERR_NOMEM;
+ }
+ result = reg_load_tree(regfile, path, subkey);
+ if (!W_ERROR_IS_OK(result)) {
+ break;
+ }
+ }
+
+ return result;
+}
+
+/*******************************************************************
+ ********************************************************************/
+
+static WERROR restore_registry_key(REGISTRY_KEY *krecord, const char *fname)
+{
+ REGF_FILE *regfile;
+ REGF_NK_REC *rootkey;
+ WERROR result;
+
+ /* open the registry file....fail if the file already exists */
+
+ regfile = regfio_open(fname, (O_RDONLY), 0);
+ if (regfile == NULL) {
+ DEBUG(0, ("restore_registry_key: failed to open \"%s\" (%s)\n",
+ fname, strerror(errno)));
+ return ntstatus_to_werror(map_nt_error_from_unix(errno));
+ }
+
+ /* get the rootkey from the regf file and then load the tree
+ via recursive calls */
+
+ if (!(rootkey = regfio_rootkey(regfile))) {
+ regfio_close(regfile);
+ return WERR_REG_FILE_INVALID;
+ }
+
+ result = reg_load_tree(regfile, krecord->name, rootkey);
+
+ /* cleanup */
+
+ regfio_close(regfile);
+
+ return result;
+}
+
+WERROR reg_restorekey(struct registry_key *key, const char *fname)
+{
+ return restore_registry_key(key->key, fname);
+}
+
+/********************************************************************
+********************************************************************/
+
+static WERROR reg_write_tree(REGF_FILE *regfile, const char *keypath,
+ REGF_NK_REC *parent)
+{
+ REGF_NK_REC *key;
+ REGVAL_CTR *values;
+ REGSUBKEY_CTR *subkeys;
+ int i, num_subkeys;
+ char *key_tmp = NULL;
+ char *keyname, *parentpath;
+ char *subkeypath = NULL;
+ char *subkeyname;
+ REGISTRY_KEY registry_key;
+ WERROR result = WERR_OK;
+ SEC_DESC *sec_desc = NULL;
+
+ if (!regfile) {
+ return WERR_GENERAL_FAILURE;
+ }
+
+ if (!keypath) {
+ return WERR_OBJECT_PATH_INVALID;
+ }
+
+ /* split up the registry key path */
+
+ key_tmp = talloc_strdup(regfile->mem_ctx, keypath);
+ if (!key_tmp) {
+ return WERR_NOMEM;
+ }
+ if (!reg_split_key(key_tmp, &parentpath, &keyname)) {
+ return WERR_OBJECT_PATH_INVALID;
+ }
+
+ if (!keyname) {
+ keyname = parentpath;
+ }
+
+ /* we need a REGISTRY_KEY object here to enumerate subkeys and values */
+
+ ZERO_STRUCT(registry_key);
+
+ registry_key.name = talloc_strdup(regfile->mem_ctx, keypath);
+ if (registry_key.name == NULL) {
+ return WERR_NOMEM;
+ }
+
+ registry_key.ops = reghook_cache_find(registry_key.name);
+ if (registry_key.ops == NULL) {
+ return WERR_BADFILE;
+ }
+
+ /* lookup the values and subkeys */
+
+ subkeys = TALLOC_ZERO_P(regfile->mem_ctx, REGSUBKEY_CTR);
+ if (subkeys == NULL) {
+ return WERR_NOMEM;
+ }
+
+ values = TALLOC_ZERO_P(subkeys, REGVAL_CTR);
+ if (values == NULL) {
+ return WERR_NOMEM;
+ }
+
+ fetch_reg_keys(®istry_key, subkeys);
+ fetch_reg_values(®istry_key, values);
+
+ result = regkey_get_secdesc(regfile->mem_ctx, ®istry_key, &sec_desc);
+ if (!W_ERROR_IS_OK(result)) {
+ goto done;
+ }
+
+ /* write out this key */
+
+ key = regfio_write_key(regfile, keyname, values, subkeys, sec_desc,
+ parent);
+ if (key == NULL) {
+ result = WERR_CAN_NOT_COMPLETE;
+ goto done;
+ }
+
+ /* write each one of the subkeys out */
+
+ num_subkeys = regsubkey_ctr_numkeys(subkeys);
+ for (i=0; i<num_subkeys; i++) {
+ subkeyname = regsubkey_ctr_specific_key(subkeys, i);
+ subkeypath = talloc_asprintf(regfile->mem_ctx, "%s\\%s",
+ keypath, subkeyname);
+ if (subkeypath == NULL) {
+ result = WERR_NOMEM;
+ goto done;
+ }
+ result = reg_write_tree(regfile, subkeypath, key);
+ if (!W_ERROR_IS_OK(result))
+ goto done;
+ }
+
+ DEBUG(6, ("reg_write_tree: wrote key [%s]\n", keypath));
+
+done:
+ TALLOC_FREE(subkeys);
+ TALLOC_FREE(registry_key.name);
+
+ return result;
+}
+
+static WERROR backup_registry_key(REGISTRY_KEY *krecord, const char *fname)
+{
+ REGF_FILE *regfile;
+ WERROR result;
+
+ /* open the registry file....fail if the file already exists */
+
+ regfile = regfio_open(fname, (O_RDWR|O_CREAT|O_EXCL),
+ (S_IREAD|S_IWRITE));
+ if (regfile == NULL) {
+ DEBUG(0,("backup_registry_key: failed to open \"%s\" (%s)\n",
+ fname, strerror(errno) ));
+ return ntstatus_to_werror(map_nt_error_from_unix(errno));
+ }
+
+ /* write the registry tree to the file */
+
+ result = reg_write_tree(regfile, krecord->name, NULL);
+
+ /* cleanup */
+
+ regfio_close(regfile);
+
+ return result;
+}
+
+WERROR reg_savekey(struct registry_key *key, const char *fname)
+{
+ return backup_registry_key(key->key, fname);
+}
+
+/**********************************************************************
+ * Higher level utility functions
+ **********************************************************************/
+
WERROR reg_deleteallvalues(struct registry_key *key)
{
WERROR err;
}
/*
- * Utility function to open a complete registry path including the hive
- * prefix. This should become the replacement function for
- * regkey_open_internal.
+ * Utility function to open a complete registry path including the hive prefix.
*/
WERROR reg_open_path(TALLOC_CTX *mem_ctx, const char *orig_path,
* Note that reg_deletekey returns ACCESS_DENIED when called on a
* key that has subkeys.
*/
-WERROR reg_deletekey_recursive_internal(TALLOC_CTX *ctx,
- struct registry_key *parent,
- const char *path,
- bool del_key)
+static WERROR reg_deletekey_recursive_internal(TALLOC_CTX *ctx,
+ struct registry_key *parent,
+ const char *path,
+ bool del_key)
{
TALLOC_CTX *mem_ctx = NULL;
WERROR werr = WERR_OK;
{
werr = reg_deletekey_recursive_internal(mem_ctx, key,
subkey_name,
- True);
+ true);
if (!W_ERROR_IS_OK(werr)) {
goto done;
}
struct registry_key *parent,
const char *path)
{
- return reg_deletekey_recursive_internal(ctx, parent, path, True);
+ return reg_deletekey_recursive_internal(ctx, parent, path, true);
}
WERROR reg_deletesubkeys_recursive(TALLOC_CTX *ctx,
struct registry_key *parent,
const char *path)
{
- return reg_deletekey_recursive_internal(ctx, parent, path, False);
+ return reg_deletekey_recursive_internal(ctx, parent, path, false);
+}
+
+#if 0
+/* these two functions are unused. */
+
+/**
+ * Utility function to create a registry key without opening the hive
+ * before. Assumes the hive already exists.
+ */
+
+WERROR reg_create_path(TALLOC_CTX *mem_ctx, const char *orig_path,
+ uint32 desired_access,
+ const struct nt_user_token *token,
+ enum winreg_CreateAction *paction,
+ struct registry_key **pkey)
+{
+ struct registry_key *hive;
+ char *path, *p;
+ WERROR err;
+
+ if (!(path = SMB_STRDUP(orig_path))) {
+ return WERR_NOMEM;
+ }
+
+ p = strchr(path, '\\');
+
+ if ((p == NULL) || (p[1] == '\0')) {
+ /*
+ * No key behind the hive, just return the hive
+ */
+
+ err = reg_openhive(mem_ctx, path, desired_access, token,
+ &hive);
+ if (!W_ERROR_IS_OK(err)) {
+ SAFE_FREE(path);
+ return err;
+ }
+ SAFE_FREE(path);
+ *pkey = hive;
+ *paction = REG_OPENED_EXISTING_KEY;
+ return WERR_OK;
+ }
+
+ *p = '\0';
+
+ err = reg_openhive(mem_ctx, path,
+ (strchr(p+1, '\\') != NULL) ?
+ SEC_RIGHTS_ENUM_SUBKEYS : SEC_RIGHTS_CREATE_SUBKEY,
+ token, &hive);
+ if (!W_ERROR_IS_OK(err)) {
+ SAFE_FREE(path);
+ return err;
+ }
+
+ err = reg_createkey(mem_ctx, hive, p+1, desired_access, pkey, paction);
+ SAFE_FREE(path);
+ TALLOC_FREE(hive);
+ return err;
+}
+
+/*
+ * Utility function to create a registry key without opening the hive
+ * before. Will not delete a hive.
+ */
+
+WERROR reg_delete_path(const struct nt_user_token *token,
+ const char *orig_path)
+{
+ struct registry_key *hive;
+ char *path, *p;
+ WERROR err;
+
+ if (!(path = SMB_STRDUP(orig_path))) {
+ return WERR_NOMEM;
+ }
+
+ p = strchr(path, '\\');
+
+ if ((p == NULL) || (p[1] == '\0')) {
+ SAFE_FREE(path);
+ return WERR_INVALID_PARAM;
+ }
+
+ *p = '\0';
+
+ err = reg_openhive(NULL, path,
+ (strchr(p+1, '\\') != NULL) ?
+ SEC_RIGHTS_ENUM_SUBKEYS : SEC_RIGHTS_CREATE_SUBKEY,
+ token, &hive);
+ if (!W_ERROR_IS_OK(err)) {
+ SAFE_FREE(path);
+ return err;
+ }
+
+ err = reg_deletekey(hive, p+1);
+ SAFE_FREE(path);
+ TALLOC_FREE(hive);
+ return err;
}
+#endif /* #if 0 */
git.samba.org / kai / samba.git / blobdiff