-/*
+/*
* 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
- * the Free Software Foundation; either version 2 of the License, or
+ * the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
- *
+ *
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
- *
+ *
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
/* 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) {
- return WERR_OK;
+ if (!reg_values_need_update(key->key, key->values)) {
+ return WERR_OK;
+ }
}
if (!(key->values = TALLOC_ZERO_P(key, REGVAL_CTR))) {
static WERROR fill_subkey_cache(struct registry_key *key)
{
+ WERROR werr;
+
if (key->subkeys != NULL) {
- return WERR_OK;
+ if (!reg_subkeys_need_update(key->key, key->subkeys)) {
+ return WERR_OK;
+ }
}
- if (!(key->subkeys = TALLOC_ZERO_P(key, REGSUBKEY_CTR))) {
- return WERR_NOMEM;
- }
+ werr = regsubkey_ctr_init(key, &(key->subkeys));
+ W_ERROR_NOT_OK_RETURN(werr);
if (fetch_reg_keys(key->key, key->subkeys) == -1) {
TALLOC_FREE(key->subkeys);
return WERR_OK;
}
-WERROR reg_openhive(TALLOC_CTX *mem_ctx, const char *hive,
- uint32 desired_access,
- const struct nt_user_token *token,
- struct registry_key **pkey)
+static int regkey_destructor(REGISTRY_KEY *key)
{
- struct registry_key *key;
- WERROR err;
+ return regdb_close();
+}
- SMB_ASSERT(hive[0] != '\0');
- SMB_ASSERT(strchr(hive, '\\') == NULL);
+static WERROR regkey_open_onelevel(TALLOC_CTX *mem_ctx,
+ struct registry_key *parent,
+ const char *name,
+ const struct nt_user_token *token,
+ uint32 access_desired,
+ struct registry_key **pregkey)
+{
+ WERROR result = WERR_OK;
+ struct registry_key *regkey;
+ REGISTRY_KEY *key;
+ struct regsubkey_ctr *subkeys = NULL;
- if (!(key = TALLOC_ZERO_P(mem_ctx, struct registry_key))) {
- return WERR_NOMEM;
+ DEBUG(7,("regkey_open_onelevel: name = [%s]\n", name));
+
+ SMB_ASSERT(strchr(name, '\\') == NULL);
+
+ if (!(regkey = TALLOC_ZERO_P(mem_ctx, struct registry_key)) ||
+ !(regkey->token = dup_nt_token(regkey, token)) ||
+ !(regkey->key = TALLOC_ZERO_P(regkey, REGISTRY_KEY))) {
+ result = WERR_NOMEM;
+ goto done;
}
- if (!(key->token = dup_nt_token(key, token))) {
- TALLOC_FREE(key);
- return WERR_NOMEM;
+ if ( !(W_ERROR_IS_OK(result = regdb_open())) ) {
+ goto done;
}
- err = regkey_open_internal(key, &key->key, hive, token,
- desired_access);
+ key = regkey->key;
+ talloc_set_destructor(key, regkey_destructor);
+
+ /* initialization */
+
+ key->type = REG_KEY_GENERIC;
- if (!W_ERROR_IS_OK(err)) {
- TALLOC_FREE(key);
- return err;
+ if (name[0] == '\0') {
+ /*
+ * Open a copy of the parent key
+ */
+ if (!parent) {
+ result = WERR_BADFILE;
+ goto done;
+ }
+ key->name = talloc_strdup(key, parent->key->name);
+ }
+ else {
+ /*
+ * Normal subkey open
+ */
+ key->name = talloc_asprintf(key, "%s%s%s",
+ parent ? parent->key->name : "",
+ parent ? "\\": "",
+ name);
}
- *pkey = key;
- return WERR_OK;
+ if (key->name == NULL) {
+ result = WERR_NOMEM;
+ goto done;
+ }
+
+ /* Tag this as a Performance Counter Key */
+ if( StrnCaseCmp(key->name, KEY_HKPD, strlen(KEY_HKPD)) == 0 )
+ key->type = REG_KEY_HKPD;
+
+ /* Look up the table of registry I/O operations */
+
+ 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;
+ }
+
+ /* check if the path really exists; failed is indicated by -1 */
+ /* if the subkey count failed, bail out */
+
+ result = regsubkey_ctr_init(key, &subkeys);
+ if (!W_ERROR_IS_OK(result)) {
+ goto done;
+ }
+
+ if ( fetch_reg_keys( key, subkeys ) == -1 ) {
+ result = WERR_BADFILE;
+ goto done;
+ }
+
+ TALLOC_FREE( subkeys );
+
+ if ( !regkey_access_check( key, access_desired, &key->access_granted,
+ token ) ) {
+ result = WERR_ACCESS_DENIED;
+ goto done;
+ }
+
+ *pregkey = regkey;
+ result = WERR_OK;
+
+done:
+ if ( !W_ERROR_IS_OK(result) ) {
+ TALLOC_FREE(regkey);
+ }
+
+ return result;
}
+WERROR reg_openhive(TALLOC_CTX *mem_ctx, const char *hive,
+ uint32 desired_access,
+ const struct nt_user_token *token,
+ struct registry_key **pkey)
+{
+ SMB_ASSERT(hive != NULL);
+ SMB_ASSERT(hive[0] != '\0');
+ SMB_ASSERT(strchr(hive, '\\') == NULL);
+
+ return regkey_open_onelevel(mem_ctx, NULL, hive, token, desired_access,
+ 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)
{
- struct registry_key *key;
+ struct registry_key *direct_parent = parent;
WERROR err;
- char *path;
+ char *p, *path, *to_free;
+ size_t len;
- if (!(key = TALLOC_ZERO_P(mem_ctx, struct registry_key))) {
+ if (!(path = SMB_STRDUP(name))) {
return WERR_NOMEM;
}
+ to_free = path;
- if (!(key->token = dup_nt_token(key, parent->token))) {
- TALLOC_FREE(key);
- return WERR_NOMEM;
- }
+ len = strlen(path);
- if (name[0] == '\0') {
- /*
- * Make a copy of the parent
- */
- path = talloc_strdup(key, parent->key->name);
- }
- else {
- /*
- * Normal subpath open
- */
- path = talloc_asprintf(key, "%s\\%s", parent->key->name,
- name);
+ if ((len > 0) && (path[len-1] == '\\')) {
+ path[len-1] = '\0';
}
- if (!path) {
- TALLOC_FREE(key);
- return WERR_NOMEM;
- }
+ while ((p = strchr(path, '\\')) != NULL) {
+ char *name_component;
+ struct registry_key *tmp;
- err = regkey_open_internal(key, &key->key, path, parent->token,
- desired_access);
- TALLOC_FREE(path);
+ if (!(name_component = SMB_STRNDUP(path, (p - path)))) {
+ err = WERR_NOMEM;
+ goto error;
+ }
- if (!W_ERROR_IS_OK(err)) {
- TALLOC_FREE(key);
- return err;
+ err = regkey_open_onelevel(mem_ctx, direct_parent,
+ name_component, parent->token,
+ SEC_RIGHTS_ENUM_SUBKEYS, &tmp);
+ SAFE_FREE(name_component);
+
+ if (!W_ERROR_IS_OK(err)) {
+ goto error;
+ }
+ if (direct_parent != parent) {
+ TALLOC_FREE(direct_parent);
+ }
+
+ direct_parent = tmp;
+ path = p+1;
}
- *pkey = key;
- return WERR_OK;
+ err = regkey_open_onelevel(mem_ctx, direct_parent, path, parent->token,
+ desired_access, pkey);
+ error:
+ if (direct_parent != parent) {
+ TALLOC_FREE(direct_parent);
+ }
+ SAFE_FREE(to_free);
+ return err;
}
WERROR reg_enumkey(TALLOC_CTX *mem_ctx, struct registry_key *key,
return err;
}
- if (idx >= key->subkeys->num_subkeys) {
+ if (idx >= regsubkey_ctr_numkeys(key->subkeys)) {
return WERR_NO_MORE_ITEMS;
}
- if (!(*name = talloc_strdup(mem_ctx, key->subkeys->subkeys[idx]))) {
+ if (!(*name = talloc_strdup(mem_ctx,
+ regsubkey_ctr_specific_key(key->subkeys, idx))))
+ {
return WERR_NOMEM;
}
}
WERROR reg_enumvalue(TALLOC_CTX *mem_ctx, struct registry_key *key,
- uint32 idx, const char **pname,
- struct registry_value **pval)
+ uint32 idx, char **pname, struct registry_value **pval)
{
struct registry_value *val;
WERROR err;
}
if (idx >= key->values->num_values) {
- return WERR_BADFILE;
+ return WERR_NO_MORE_ITEMS;
}
err = registry_pull_value(mem_ctx, &val,
SAFE_FREE(val);
return WERR_NOMEM;
}
-
+
*pval = val;
return WERR_OK;
}
}
max_len = 0;
- for (i=0; i<key->subkeys->num_subkeys; i++) {
- max_len = MAX(max_len, strlen(key->subkeys->subkeys[i]));
+ for (i=0; i< regsubkey_ctr_numkeys(key->subkeys); i++) {
+ max_len = MAX(max_len,
+ strlen(regsubkey_ctr_specific_key(key->subkeys, i)));
}
- *num_subkeys = key->subkeys->num_subkeys;
+ *num_subkeys = regsubkey_ctr_numkeys(key->subkeys);
*max_subkeylen = max_len;
*max_subkeysize = 0; /* Class length? */
return err;
}
- *secdescsize = sec_desc_size(secdesc);
+ *secdescsize = ndr_size_security_descriptor(secdesc, NULL, 0);
TALLOC_FREE(mem_ctx);
*last_changed_time = 0;
TALLOC_CTX *mem_ctx;
char *path, *end;
WERROR err;
- REGSUBKEY_CTR *subkeys;
if (!(mem_ctx = talloc_new(ctx))) return WERR_NOMEM;
err = reg_openkey(ctx, key, path, desired_access, pkey);
if (W_ERROR_IS_OK(err)) {
- *paction = REG_OPENED_EXISTING_KEY;
- return WERR_OK;
+ if (paction != NULL) {
+ *paction = REG_OPENED_EXISTING_KEY;
+ }
+ goto done;
}
if (!W_ERROR_EQUAL(err, WERR_BADFILE)) {
* 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;
- err = regsubkey_ctr_addkey(create_parent->subkeys, path);
- if (!W_ERROR_IS_OK(err)) goto done;
-
- if (!store_reg_keys(create_parent->key, create_parent->subkeys)) {
- TALLOC_FREE(create_parent->subkeys);
- err = WERR_REG_IO_FAILURE;
- goto done;
- }
+ err = create_reg_subkey(key->key, path);
+ W_ERROR_NOT_OK_GOTO_DONE(err);
/*
* Now open the newly created key
TALLOC_FREE(mem_ctx);
return err;
}
-
WERROR reg_deletekey(struct registry_key *parent, const char *path)
{
WERROR err;
- TALLOC_CTX *mem_ctx;
char *name, *end;
- int num_subkeys;
+ struct registry_key *tmp_key, *key;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
- if (!(mem_ctx = talloc_init("reg_createkey"))) return WERR_NOMEM;
-
- if (!(name = talloc_strdup(mem_ctx, path))) {
+ name = talloc_strdup(mem_ctx, path);
+ if (name == NULL) {
err = WERR_NOMEM;
- goto error;
+ goto done;
}
- if ((end = strrchr(name, '\\')) != NULL) {
- struct registry_key *tmp;
+ /* check if the key has subkeys */
+ err = reg_openkey(mem_ctx, parent, name, REG_KEY_READ, &key);
+ W_ERROR_NOT_OK_GOTO_DONE(err);
+
+ err = fill_subkey_cache(key);
+ W_ERROR_NOT_OK_GOTO_DONE(err);
+
+ if (regsubkey_ctr_numkeys(key->subkeys) > 0) {
+ err = WERR_ACCESS_DENIED;
+ goto done;
+ }
+ /* no subkeys - proceed with delete */
+ end = strrchr(name, '\\');
+ if (end != NULL) {
*end = '\0';
err = reg_openkey(mem_ctx, parent, name,
- SEC_RIGHTS_CREATE_SUBKEY, &tmp);
- if (!W_ERROR_IS_OK(err)) {
- goto error;
- }
+ SEC_RIGHTS_CREATE_SUBKEY, &tmp_key);
+ W_ERROR_NOT_OK_GOTO_DONE(err);
- parent = tmp;
+ parent = tmp_key;
name = end+1;
}
if (name[0] == '\0') {
err = WERR_INVALID_PARAM;
- goto error;
- }
-
- if (!W_ERROR_IS_OK(err = fill_subkey_cache(parent))) {
- goto error;
- }
-
- num_subkeys = parent->subkeys->num_subkeys;
-
- if (regsubkey_ctr_delkey(parent->subkeys, name) == num_subkeys) {
- err = WERR_BADFILE;
- goto error;
+ goto done;
}
- if (!store_reg_keys(parent->key, parent->subkeys)) {
- TALLOC_FREE(parent->subkeys);
- err = WERR_REG_IO_FAILURE;
- goto error;
- }
+ err = delete_reg_subkey(parent->key, name);
- err = WERR_OK;
- error:
+done:
TALLOC_FREE(mem_ctx);
return err;
}
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;
+ struct 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 */
+
+ result = regsubkey_ctr_init(regfile->mem_ctx, &subkeys);
+ W_ERROR_NOT_OK_RETURN(result);
+
+ 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 struct 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;
+ struct 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 */
+
+ result = regsubkey_ctr_init(regfile->mem_ctx, &subkeys);
+ W_ERROR_NOT_OK_RETURN(result);
+
+ 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;
+ int i;
+
+ if (!(key->key->access_granted & SEC_RIGHTS_SET_VALUE)) {
+ return WERR_ACCESS_DENIED;
+ }
+
+ if (!W_ERROR_IS_OK(err = fill_value_cache(key))) {
+ return err;
+ }
+
+ for (i=0; i<key->values->num_values; i++) {
+ regval_ctr_delvalue(key->values, key->values->values[i]->valuename);
+ }
+
+ if (!store_reg_values(key->key, key->values)) {
+ TALLOC_FREE(key->values);
+ return WERR_REG_IO_FAILURE;
+ }
+
+ return WERR_OK;
+}
+
+/*
+ * Utility function to open a complete registry path including the hive prefix.
+ */
+
+WERROR reg_open_path(TALLOC_CTX *mem_ctx, const char *orig_path,
+ uint32 desired_access, const struct nt_user_token *token,
+ struct registry_key **pkey)
+{
+ struct registry_key *hive, *key;
+ 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;
+ return WERR_OK;
+ }
+
+ *p = '\0';
+
+ err = reg_openhive(mem_ctx, path, SEC_RIGHTS_ENUM_SUBKEYS, token,
+ &hive);
+ if (!W_ERROR_IS_OK(err)) {
+ SAFE_FREE(path);
+ return err;
+ }
+
+ err = reg_openkey(mem_ctx, hive, p+1, desired_access, &key);
+
+ TALLOC_FREE(hive);
+ SAFE_FREE(path);
+
+ if (!W_ERROR_IS_OK(err)) {
+ return err;
+ }
+
+ *pkey = key;
+ return WERR_OK;
+}
+
+/*
+ * Utility function to delete a registry key with all its subkeys.
+ * Note that reg_deletekey returns ACCESS_DENIED when called on a
+ * key that has subkeys.
+ */
+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;
+ struct registry_key *key;
+ char *subkey_name = NULL;
+
+ mem_ctx = talloc_new(ctx);
+ if (mem_ctx == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ /* recurse through subkeys first */
+ werr = reg_openkey(mem_ctx, parent, path, REG_KEY_ALL, &key);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+
+ while (W_ERROR_IS_OK(werr = reg_enumkey(mem_ctx, key, 0,
+ &subkey_name, NULL)))
+ {
+ werr = reg_deletekey_recursive_internal(mem_ctx, key,
+ subkey_name,
+ true);
+ if (!W_ERROR_IS_OK(werr)) {
+ goto done;
+ }
+ }
+ if (!W_ERROR_EQUAL(WERR_NO_MORE_ITEMS, werr)) {
+ DEBUG(1, ("reg_deletekey_recursive_internal: "
+ "Error enumerating subkeys: %s\n",
+ win_errstr(werr)));
+ goto done;
+ }
+
+ werr = WERR_OK;
+
+ if (del_key) {
+ /* now delete the actual key */
+ werr = reg_deletekey(parent, path);
+ }
+
+done:
+ TALLOC_FREE(mem_ctx);
+ return werr;
+}
+
+static WERROR reg_deletekey_recursive_trans(TALLOC_CTX *ctx,
+ struct registry_key *parent,
+ const char *path,
+ bool del_key)
+{
+ WERROR werr;
+
+ werr = regdb_transaction_start();
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0, ("reg_deletekey_recursive_trans: "
+ "error starting transaction: %s\n",
+ win_errstr(werr)));
+ return werr;
+ }
+
+ werr = reg_deletekey_recursive_internal(ctx, parent, path, del_key);
+
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(1, (__location__ " failed to delete key '%s' from key "
+ "'%s': %s\n", path, parent->key->name,
+ win_errstr(werr)));
+ werr = regdb_transaction_cancel();
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0, ("reg_deletekey_recursive_trans: "
+ "error cancelling transaction: %s\n",
+ win_errstr(werr)));
+ }
+ } else {
+ werr = regdb_transaction_commit();
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0, ("reg_deletekey_recursive_trans: "
+ "error committing transaction: %s\n",
+ win_errstr(werr)));
+ }
+ }
+
+ return werr;
+}
+
+WERROR reg_deletekey_recursive(TALLOC_CTX *ctx,
+ struct registry_key *parent,
+ const char *path)
+{
+ return reg_deletekey_recursive_trans(ctx, parent, path, true);
+}
+
+WERROR reg_deletesubkeys_recursive(TALLOC_CTX *ctx,
+ struct registry_key *parent,
+ const char *path)
+{
+ return reg_deletekey_recursive_trans(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