* Unix SMB/CIFS implementation.
* Virtual Windows Registry Layer
* Copyright (C) Volker Lendecke 2006
- * Copyright (C) Michael Adam 2007-2008
+ * Copyright (C) Michael Adam 2007-2010
*
* 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
* 0x1a winreg_GetVersion reg_getversion
* 0x1b winreg_OpenHKCC
* 0x1c winreg_OpenHKDD
- * 0x1d winreg_QueryMultipleValues
+ * 0x1d winreg_QueryMultipleValues reg_querymultiplevalues
* 0x1e winreg_InitiateSystemShutdownEx
* 0x1f winreg_SaveKeyEx
* 0x20 winreg_OpenHKPT
* 0x21 winreg_OpenHKPN
- * 0x22 winreg_QueryMultipleValues2
+ * 0x22 winreg_QueryMultipleValues2 reg_querymultiplevalues
*
*/
#include "includes.h"
#include "registry.h"
+#include "reg_api.h"
#include "reg_cachehook.h"
-#include "regfio.h"
-#include "reg_util_internal.h"
#include "reg_backend_db.h"
#include "reg_dispatcher.h"
+#include "reg_objects.h"
+#include "../librpc/gen_ndr/ndr_security.h"
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_REGISTRY
static WERROR fill_value_cache(struct registry_key *key)
{
+ WERROR werr;
+
if (key->values != NULL) {
if (!reg_values_need_update(key->key, key->values)) {
return WERR_OK;
}
}
- if (!(key->values = TALLOC_ZERO_P(key, struct regval_ctr))) {
- return WERR_NOMEM;
- }
+ werr = regval_ctr_init(key, &(key->values));
+ W_ERROR_NOT_OK_RETURN(werr);
+
if (fetch_reg_values(key->key, key->values) == -1) {
TALLOC_FREE(key->values);
return WERR_BADFILE;
static WERROR regkey_open_onelevel(TALLOC_CTX *mem_ctx,
struct registry_key *parent,
const char *name,
- const struct nt_user_token *token,
+ const struct security_token *token,
uint32 access_desired,
struct registry_key **pregkey)
{
WERROR reg_openhive(TALLOC_CTX *mem_ctx, const char *hive,
uint32 desired_access,
- const struct nt_user_token *token,
+ const struct security_token *token,
struct registry_key **pkey)
{
SMB_ASSERT(hive != NULL);
uint32 idx, char **pname, struct registry_value **pval)
{
struct registry_value *val;
+ struct regval_blob *blob;
WERROR err;
if (!(key->key->access_granted & KEY_QUERY_VALUE)) {
return err;
}
- if (idx >= key->values->num_values) {
+ if (idx >= regval_ctr_numvals(key->values)) {
return WERR_NO_MORE_ITEMS;
}
- err = registry_pull_value(mem_ctx, &val,
- key->values->values[idx]->type,
- key->values->values[idx]->data_p,
- key->values->values[idx]->size,
- key->values->values[idx]->size);
- if (!W_ERROR_IS_OK(err)) {
- return err;
+ blob = regval_ctr_specific_value(key->values, idx);
+
+ val = talloc_zero(mem_ctx, struct registry_value);
+ if (val == NULL) {
+ return WERR_NOMEM;
}
+ val->type = regval_type(blob);
+ val->data = data_blob_talloc(mem_ctx, regval_data_p(blob), regval_size(blob));
+
if (pname
&& !(*pname = talloc_strdup(
- mem_ctx, key->values->values[idx]->valuename))) {
- SAFE_FREE(val);
+ mem_ctx, regval_name(blob)))) {
+ TALLOC_FREE(val);
return WERR_NOMEM;
}
return err;
}
- for (i=0; i<key->values->num_values; i++) {
- if (strequal(key->values->values[i]->valuename, name)) {
+ for (i=0; i < regval_ctr_numvals(key->values); i++) {
+ struct regval_blob *blob;
+ blob = regval_ctr_specific_value(key->values, i);
+ if (strequal(regval_name(blob), name)) {
return reg_enumvalue(mem_ctx, key, i, NULL, pval);
}
}
return WERR_BADFILE;
}
+WERROR reg_querymultiplevalues(TALLOC_CTX *mem_ctx,
+ struct registry_key *key,
+ uint32_t num_names,
+ const char **names,
+ uint32_t *pnum_vals,
+ struct registry_value **pvals)
+{
+ WERROR err;
+ uint32_t i, n, found = 0;
+ struct registry_value *vals;
+
+ if (num_names == 0) {
+ return WERR_OK;
+ }
+
+ if (!(key->key->access_granted & KEY_QUERY_VALUE)) {
+ return WERR_ACCESS_DENIED;
+ }
+
+ if (!(W_ERROR_IS_OK(err = fill_value_cache(key)))) {
+ return err;
+ }
+
+ vals = talloc_zero_array(mem_ctx, struct registry_value, num_names);
+ if (vals == NULL) {
+ return WERR_NOMEM;
+ }
+
+ for (n=0; n < num_names; n++) {
+ for (i=0; i < regval_ctr_numvals(key->values); i++) {
+ struct regval_blob *blob;
+ blob = regval_ctr_specific_value(key->values, i);
+ if (strequal(regval_name(blob), names[n])) {
+ struct registry_value *v;
+ err = reg_enumvalue(mem_ctx, key, i, NULL, &v);
+ if (!W_ERROR_IS_OK(err)) {
+ return err;
+ }
+ vals[n] = *v;
+ found++;
+ }
+ }
+ }
+
+ *pvals = vals;
+ *pnum_vals = found;
+
+ return WERR_OK;
+}
+
WERROR reg_queryinfokey(struct registry_key *key, uint32_t *num_subkeys,
uint32_t *max_subkeylen, uint32_t *max_subkeysize,
uint32_t *num_values, uint32_t *max_valnamelen,
max_len = 0;
max_size = 0;
- for (i=0; i<key->values->num_values; i++) {
- max_len = MAX(max_len,
- strlen(key->values->values[i]->valuename));
- max_size = MAX(max_size, key->values->values[i]->size);
+ for (i=0; i < regval_ctr_numvals(key->values); i++) {
+ struct regval_blob *blob;
+ blob = regval_ctr_specific_value(key->values, i);
+ max_len = MAX(max_len, strlen(regval_name(blob)));
+ max_size = MAX(max_size, regval_size(blob));
}
- *num_values = key->values->num_values;
+ *num_values = regval_ctr_numvals(key->values);
*max_valnamelen = max_len;
*max_valbufsize = max_size;
char *path, *end;
WERROR err;
- /*
- * We must refuse to handle subkey-paths containing
- * a '/' character because at a lower level, after
- * normalization, '/' is treated as a key separator
- * just like '\\'.
- */
- if (strchr(subkeypath, '/') != NULL) {
- return WERR_INVALID_PARAM;
- }
-
if (!(mem_ctx = talloc_new(ctx))) return WERR_NOMEM;
if (!(path = talloc_strdup(mem_ctx, subkeypath))) {
WERROR reg_setvalue(struct registry_key *key, const char *name,
const struct registry_value *val)
{
+ struct regval_blob *existing;
WERROR err;
- DATA_BLOB value_data;
int res;
if (!(key->key->access_granted & KEY_SET_VALUE)) {
return err;
}
- err = registry_push_value(key, val, &value_data);
- if (!W_ERROR_IS_OK(err)) {
- return err;
+ existing = regval_ctr_getvalue(key->values, name);
+
+ if ((existing != NULL) &&
+ (regval_size(existing) == val->data.length) &&
+ (memcmp(regval_data_p(existing), val->data.data,
+ val->data.length) == 0)) {
+ return WERR_OK;
}
res = regval_ctr_addvalue(key->values, name, val->type,
- value_data.data, value_data.length);
- TALLOC_FREE(value_data.data);
+ val->data.data, val->data.length);
if (res == 0) {
TALLOC_FREE(key->values);
static WERROR reg_value_exists(struct registry_key *key, const char *name)
{
- int i;
+ struct regval_blob *blob;
- for (i=0; i<key->values->num_values; i++) {
- if (strequal(key->values->values[i]->valuename, name)) {
- return WERR_OK;
- }
- }
+ blob = regval_ctr_getvalue(key->values, name);
- return WERR_BADFILE;
+ if (blob == NULL) {
+ return WERR_BADFILE;
+ } else {
+ return WERR_OK;
+ }
}
WERROR reg_deletevalue(struct registry_key *key, const char *name)
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;
- struct registry_key_handle registry_key;
- struct regval_ctr *values;
- struct regsubkey_ctr *subkeys;
- int i;
- char *path = NULL;
- WERROR result = WERR_OK;
-
- /* initialize the struct registry_key_handle 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, struct regval_ctr);
- if (values == NULL) {
- return WERR_NOMEM;
- }
-
- /* copy values into the struct regval_ctr */
-
- for (i=0; i<key->num_values; i++) {
- regval_ctr_addvalue(values, key->values[i].valuename,
- key->values[i].type,
- 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(struct registry_key_handle *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;
- struct regval_ctr *values;
- struct regsubkey_ctr *subkeys;
- int i, num_subkeys;
- char *key_tmp = NULL;
- char *keyname, *parentpath;
- char *subkeypath = NULL;
- char *subkeyname;
- struct registry_key_handle registry_key;
- WERROR result = WERR_OK;
- struct security_descriptor *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_handle 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, struct 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(struct registry_key_handle *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
**********************************************************************/
return err;
}
- for (i=0; i<key->values->num_values; i++) {
- regval_ctr_delvalue(key->values, key->values->values[i]->valuename);
+ for (i=0; i < regval_ctr_numvals(key->values); i++) {
+ struct regval_blob *blob;
+ blob = regval_ctr_specific_value(key->values, i);
+ regval_ctr_delvalue(key->values, regval_name(blob));
}
if (!store_reg_values(key->key, key->values)) {
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, KEY_ENUMERATE_SUB_KEYS, 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,
+static WERROR reg_deletekey_recursive_internal(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;
uint32 i;
-
- mem_ctx = talloc_new(ctx);
- if (mem_ctx == NULL) {
- werr = WERR_NOMEM;
- goto done;
- }
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
/* recurse through subkeys first */
werr = reg_openkey(mem_ctx, parent, path, REG_KEY_ALL, &key);
*/
for (i = regsubkey_ctr_numkeys(key->subkeys) ; i > 0; i--) {
subkey_name = regsubkey_ctr_specific_key(key->subkeys, i-1);
- werr = reg_deletekey_recursive_internal(mem_ctx, key,
- subkey_name,
- true);
+ werr = reg_deletekey_recursive_internal(key, subkey_name, true);
W_ERROR_NOT_OK_GOTO_DONE(werr);
}
return werr;
}
-static WERROR reg_deletekey_recursive_trans(TALLOC_CTX *ctx,
- struct registry_key *parent,
+static WERROR reg_deletekey_recursive_trans(struct registry_key *parent,
const char *path,
bool del_key)
{
return werr;
}
- werr = reg_deletekey_recursive_internal(ctx, parent, path, del_key);
+ werr = reg_deletekey_recursive_internal(parent, path, del_key);
if (!W_ERROR_IS_OK(werr)) {
+ WERROR werr2;
+
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)) {
+
+ werr2 = regdb_transaction_cancel();
+ if (!W_ERROR_IS_OK(werr2)) {
DEBUG(0, ("reg_deletekey_recursive_trans: "
"error cancelling transaction: %s\n",
- win_errstr(werr)));
+ win_errstr(werr2)));
+ /*
+ * return the original werr or the
+ * error from cancelling the transaction?
+ */
}
} else {
werr = regdb_transaction_commit();
return werr;
}
-WERROR reg_deletekey_recursive(TALLOC_CTX *ctx,
- struct registry_key *parent,
+WERROR reg_deletekey_recursive(struct registry_key *parent,
const char *path)
{
- return reg_deletekey_recursive_trans(ctx, parent, path, true);
+ return reg_deletekey_recursive_trans(parent, path, true);
}
-WERROR reg_deletesubkeys_recursive(TALLOC_CTX *ctx,
- struct registry_key *parent,
+WERROR reg_deletesubkeys_recursive(struct registry_key *parent,
const char *path)
{
- return reg_deletekey_recursive_trans(ctx, parent, path, false);
+ return reg_deletekey_recursive_trans(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) ?
- KEY_ENUMERATE_SUB_KEYS : KEY_CREATE_SUB_KEY,
- 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) ?
- KEY_ENUMERATE_SUB_KEYS : KEY_CREATE_SUB_KEY,
- 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 / amitay / samba.git / blobdiff