* Unix SMB/CIFS implementation.
* Virtual Windows Registry Layer
* Copyright (C) Gerald Carter 2002-2005
+ * Copyright (C) Michael Adam 2007-2009
*
* 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
#include "includes.h"
+#include "registry.h"
+#include "reg_db.h"
+#include "reg_util_internal.h"
+#include "reg_backend_db.h"
+#include "reg_objects.h"
+#include "nt_printing.h"
+
#undef DBGC_CLASS
#define DBGC_CLASS DBGC_REGISTRY
static struct db_context *regdb = NULL;
static int regdb_refcount;
-static bool regdb_key_exists(const char *key);
+static bool regdb_key_exists(struct db_context *db, const char *key);
static bool regdb_key_is_base_key(const char *key);
+static WERROR regdb_fetch_keys_internal(struct db_context *db, const char *key,
+ struct regsubkey_ctr *ctr);
+static bool regdb_store_keys_internal(struct db_context *db, const char *key,
+ struct regsubkey_ctr *ctr);
+static int regdb_fetch_values_internal(struct db_context *db, const char* key,
+ struct regval_ctr *values);
+static bool regdb_store_values_internal(struct db_context *db, const char *key,
+ struct regval_ctr *values);
/* List the deepest path into the registry. All part components will be created.*/
KEY_PRINTING_2K,
KEY_PRINTING_PORTS,
KEY_PRINTING,
+ KEY_PRINTING "\\Forms",
+ KEY_PRINTING "\\Printers",
+ KEY_PRINTING "\\Environments\\Windows NT x86\\Print Processors\\winprint",
KEY_SHARES,
KEY_EVENTLOG,
KEY_SMBCONF,
KEY_HKCU,
KEY_GP_USER_POLICY,
KEY_GP_USER_WIN_POLICY,
- KEY_WINLOGON_GPEXT_PATH,
+ "HKLM\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\GPExtensions",
"HKLM\\SYSTEM\\CurrentControlSet\\Control\\Print\\Monitors",
KEY_PROD_OPTIONS,
"HKLM\\SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\DefaultUserConfiguration",
* Initialize a key in the registry:
* create each component key of the specified path.
*/
-static WERROR init_registry_key_internal(const char *add_path)
+static WERROR init_registry_key_internal(struct db_context *db,
+ const char *add_path)
{
WERROR werr;
TALLOC_CTX *frame = talloc_stackframe();
char *remaining = NULL;
char *keyname;
char *subkeyname;
- REGSUBKEY_CTR *subkeys;
+ struct regsubkey_ctr *subkeys;
const char *p, *p2;
DEBUG(6, ("init_registry_key: Adding [%s]\n", add_path));
* since we are about to update the record.
* We just want any subkeys already present */
- if (!(subkeys = TALLOC_ZERO_P(frame, REGSUBKEY_CTR))) {
+ werr = regsubkey_ctr_init(frame, &subkeys);
+ if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,("talloc() failure!\n"));
- werr = WERR_NOMEM;
goto fail;
}
- regdb_fetch_keys(base, subkeys);
+ werr = regdb_fetch_keys_internal(db, base, subkeys);
+ if (!W_ERROR_IS_OK(werr) &&
+ !W_ERROR_EQUAL(werr, WERR_NOT_FOUND))
+ {
+ goto fail;
+ }
+
if (*subkeyname) {
werr = regsubkey_ctr_addkey(subkeys, subkeyname);
if (!W_ERROR_IS_OK(werr)) {
goto fail;
}
}
- if (!regdb_store_keys( base, subkeys)) {
+ if (!regdb_store_keys_internal(db, base, subkeys)) {
werr = WERR_CAN_NOT_COMPLETE;
goto fail;
}
return werr;
}
+struct init_registry_key_context {
+ const char *add_path;
+};
+
+static NTSTATUS init_registry_key_action(struct db_context *db,
+ void *private_data)
+{
+ struct init_registry_key_context *init_ctx =
+ (struct init_registry_key_context *)private_data;
+
+ return werror_to_ntstatus(init_registry_key_internal(
+ db, init_ctx->add_path));
+}
+
/**
* Initialize a key in the registry:
* create each component key of the specified path,
*/
WERROR init_registry_key(const char *add_path)
{
- WERROR werr;
+ struct init_registry_key_context init_ctx;
- if (regdb_key_exists(add_path)) {
+ if (regdb_key_exists(regdb, add_path)) {
return WERR_OK;
}
- if (regdb->transaction_start(regdb) != 0) {
- DEBUG(0, ("init_registry_key: transaction_start failed\n"));
- return WERR_REG_IO_FAILURE;
- }
+ init_ctx.add_path = add_path;
- werr = init_registry_key_internal(add_path);
- if (!W_ERROR_IS_OK(werr)) {
- goto fail;
+ return ntstatus_to_werror(dbwrap_trans_do(regdb,
+ init_registry_key_action,
+ &init_ctx));
+}
+
+/***********************************************************************
+ Open the registry data in the tdb
+ ***********************************************************************/
+
+static void regdb_ctr_add_value(struct regval_ctr *ctr,
+ struct builtin_regkey_value *value)
+{
+ switch(value->type) {
+ case REG_DWORD:
+ regval_ctr_addvalue(ctr, value->valuename, REG_DWORD,
+ (uint8_t *)&value->data.dw_value,
+ sizeof(uint32));
+ break;
+
+ case REG_SZ:
+ regval_ctr_addvalue_sz(ctr, value->valuename,
+ value->data.string);
+ break;
+
+ default:
+ DEBUG(0, ("regdb_ctr_add_value: invalid value type in "
+ "registry values [%d]\n", value->type));
}
+}
- if (regdb->transaction_commit(regdb) != 0) {
- DEBUG(0, ("init_registry_key: Could not commit transaction\n"));
- return WERR_REG_IO_FAILURE;
+static NTSTATUS init_registry_data_action(struct db_context *db,
+ void *private_data)
+{
+ NTSTATUS status;
+ TALLOC_CTX *frame = talloc_stackframe();
+ struct regval_ctr *values;
+ int i;
+
+ /* loop over all of the predefined paths and add each component */
+
+ for (i=0; builtin_registry_paths[i] != NULL; i++) {
+ if (regdb_key_exists(db, builtin_registry_paths[i])) {
+ continue;
+ }
+ status = werror_to_ntstatus(init_registry_key_internal(db,
+ builtin_registry_paths[i]));
+ if (!NT_STATUS_IS_OK(status)) {
+ goto done;
+ }
}
- return WERR_OK;
+ /* loop over all of the predefined values and add each component */
-fail:
- if (regdb->transaction_cancel(regdb) != 0) {
- smb_panic("init_registry_key: transaction_cancel failed\n");
+ for (i=0; builtin_registry_values[i].path != NULL; i++) {
+ WERROR werr;
+
+ werr = regval_ctr_init(frame, &values);
+ if (!W_ERROR_IS_OK(werr)) {
+ status = werror_to_ntstatus(werr);
+ goto done;
+ }
+
+ regdb_fetch_values_internal(db,
+ builtin_registry_values[i].path,
+ values);
+
+ /* preserve existing values across restarts. Only add new ones */
+
+ if (!regval_ctr_key_exists(values,
+ builtin_registry_values[i].valuename))
+ {
+ regdb_ctr_add_value(values,
+ &builtin_registry_values[i]);
+ regdb_store_values_internal(db,
+ builtin_registry_values[i].path,
+ values);
+ }
+ TALLOC_FREE(values);
}
- return werr;
-}
+ status = NT_STATUS_OK;
-/***********************************************************************
- Open the registry data in the tdb
- ***********************************************************************/
+done:
+
+ TALLOC_FREE(frame);
+ return status;
+}
WERROR init_registry_data(void)
{
WERROR werr;
TALLOC_CTX *frame = talloc_stackframe();
- REGVAL_CTR *values;
+ struct regval_ctr *values;
int i;
- UNISTR2 data;
/*
* First, check for the existence of the needed keys and values.
* If all do already exist, we can save the writes.
*/
for (i=0; builtin_registry_paths[i] != NULL; i++) {
- if (!regdb_key_exists(builtin_registry_paths[i])) {
+ if (!regdb_key_exists(regdb, builtin_registry_paths[i])) {
goto do_init;
}
}
for (i=0; builtin_registry_values[i].path != NULL; i++) {
- values = TALLOC_ZERO_P(frame, REGVAL_CTR);
- if (values == NULL) {
- werr = WERR_NOMEM;
- goto done;
- }
+ werr = regval_ctr_init(frame, &values);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
- regdb_fetch_values(builtin_registry_values[i].path, values);
+ regdb_fetch_values_internal(regdb,
+ builtin_registry_values[i].path,
+ values);
if (!regval_ctr_key_exists(values,
builtin_registry_values[i].valuename))
{
* transaction behaviour.
*/
- if (regdb->transaction_start(regdb) != 0) {
- DEBUG(0, ("init_registry_data: tdb_transaction_start "
- "failed\n"));
- werr = WERR_REG_IO_FAILURE;
- goto done;
- }
+ werr = ntstatus_to_werror(dbwrap_trans_do(regdb,
+ init_registry_data_action,
+ NULL));
- /* loop over all of the predefined paths and add each component */
+done:
+ TALLOC_FREE(frame);
+ return werr;
+}
- for (i=0; builtin_registry_paths[i] != NULL; i++) {
- if (regdb_key_exists(builtin_registry_paths[i])) {
- continue;
- }
- werr = init_registry_key_internal(builtin_registry_paths[i]);
- if (!W_ERROR_IS_OK(werr)) {
- goto fail;
- }
+static int regdb_normalize_keynames_fn(struct db_record *rec,
+ void *private_data)
+{
+ TALLOC_CTX *mem_ctx = talloc_tos();
+ const char *keyname;
+ NTSTATUS status;
+
+ if (rec->key.dptr == NULL || rec->key.dsize == 0) {
+ return 0;
}
- /* loop over all of the predefined values and add each component */
+ keyname = strchr((const char *) rec->key.dptr, '/');
+ if (keyname) {
+ struct db_record new_rec;
- for (i=0; builtin_registry_values[i].path != NULL; i++) {
+ keyname = talloc_string_sub(mem_ctx,
+ (const char *) rec->key.dptr,
+ "/",
+ "\\");
- values = TALLOC_ZERO_P(frame, REGVAL_CTR);
- if (values == NULL) {
- werr = WERR_NOMEM;
- goto fail;
- }
+ DEBUG(2, ("regdb_normalize_keynames_fn: Convert %s to %s\n",
+ (const char *) rec->key.dptr,
+ keyname));
- regdb_fetch_values(builtin_registry_values[i].path, values);
+ new_rec.value.dptr = rec->value.dptr;
+ new_rec.value.dsize = rec->value.dsize;
+ new_rec.key.dptr = (unsigned char *) keyname;
+ new_rec.key.dsize = strlen(keyname);
+ new_rec.private_data = rec->private_data;
- /* preserve existing values across restarts. Only add new ones */
+ /* Delete the original record and store the normalized key */
+ status = rec->delete_rec(rec);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("regdb_normalize_keynames_fn: "
+ "tdb_delete for [%s] failed!\n",
+ rec->key.dptr));
+ return 1;
+ }
- if (!regval_ctr_key_exists(values,
- builtin_registry_values[i].valuename))
- {
- switch(builtin_registry_values[i].type) {
- case REG_DWORD:
- regval_ctr_addvalue(values,
- builtin_registry_values[i].valuename,
- REG_DWORD,
- (char*)&builtin_registry_values[i].data.dw_value,
- sizeof(uint32));
- break;
+ status = rec->store(&new_rec, new_rec.value, TDB_REPLACE);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(0,("regdb_normalize_keynames_fn: "
+ "failed to store new record for [%s]!\n",
+ keyname));
+ return 1;
+ }
+ }
- case REG_SZ:
- init_unistr2(&data,
- builtin_registry_values[i].data.string,
- UNI_STR_TERMINATE);
- regval_ctr_addvalue(values,
- builtin_registry_values[i].valuename,
- REG_SZ,
- (char*)data.buffer,
- data.uni_str_len*sizeof(uint16));
- break;
+ return 0;
+}
- default:
- DEBUG(0, ("init_registry_data: invalid value "
- "type in builtin_registry_values "
- "[%d]\n",
- builtin_registry_values[i].type));
- }
- regdb_store_values(builtin_registry_values[i].path,
- values);
- }
- TALLOC_FREE(values);
+static WERROR regdb_store_regdb_version(uint32_t version)
+{
+ NTSTATUS status;
+ const char *version_keyname = "INFO/version";
+
+ if (!regdb) {
+ return WERR_CAN_NOT_COMPLETE;
}
- if (regdb->transaction_commit(regdb) != 0) {
- DEBUG(0, ("init_registry_data: Could not commit "
- "transaction\n"));
- werr = WERR_REG_IO_FAILURE;
+ status = dbwrap_trans_store_int32(regdb, version_keyname, version);
+ if (!NT_STATUS_IS_OK(status)) {
+ DEBUG(1, ("regdb_init: error storing %s = %d: %s\n",
+ version_keyname, version, nt_errstr(status)));
+ return ntstatus_to_werror(status);
} else {
- werr = WERR_OK;
+ DEBUG(10, ("regdb_init: stored %s = %d\n",
+ version_keyname, version));
+ return WERR_OK;
}
+}
- goto done;
+static WERROR regdb_upgrade_v1_to_v2(void)
+{
+ TALLOC_CTX *mem_ctx;
+ int rc;
+ WERROR werr;
-fail:
- if (regdb->transaction_cancel(regdb) != 0) {
- smb_panic("init_registry_data: tdb_transaction_cancel "
- "failed\n");
+ mem_ctx = talloc_stackframe();
+ if (mem_ctx == NULL) {
+ return WERR_NOMEM;
}
-done:
- TALLOC_FREE(frame);
+ rc = regdb->traverse(regdb, regdb_normalize_keynames_fn, mem_ctx);
+
+ talloc_destroy(mem_ctx);
+
+ if (rc == -1) {
+ return WERR_REG_IO_FAILURE;
+ }
+
+ werr = regdb_store_regdb_version(REGVER_V2);
return werr;
}
/***********************************************************************
Open the registry database
***********************************************************************/
-
+
WERROR regdb_init(void)
{
const char *vstring = "INFO/version";
- uint32 vers_id;
+ uint32 vers_id, expected_version;
WERROR werr;
if (regdb) {
return WERR_OK;
}
- regdb = db_open_trans(NULL, state_path("registry.tdb"), 0,
+ regdb = db_open(NULL, state_path("registry.tdb"), 0,
REG_TDB_FLAGS, O_RDWR, 0600);
if (!regdb) {
- regdb = db_open_trans(NULL, state_path("registry.tdb"), 0,
+ regdb = db_open(NULL, state_path("registry.tdb"), 0,
REG_TDB_FLAGS, O_RDWR|O_CREAT, 0600);
if (!regdb) {
werr = ntstatus_to_werror(map_nt_error_from_unix(errno));
regdb_refcount = 1;
+ expected_version = REGVER_V2;
+
vers_id = dbwrap_fetch_int32(regdb, vstring);
+ if (vers_id == -1) {
+ DEBUG(10, ("regdb_init: registry version uninitialized "
+ "(got %d), initializing to version %d\n",
+ vers_id, expected_version));
- if ( vers_id != REGVER_V1 ) {
- NTSTATUS status;
- /* any upgrade code here if needed */
- DEBUG(10, ("regdb_init: got %s = %d != %d\n", vstring,
- vers_id, REGVER_V1));
- status = dbwrap_trans_store_int32(regdb, vstring, REGVER_V1);
- if (!NT_STATUS_IS_OK(status)) {
- DEBUG(1, ("regdb_init: error storing %s = %d: %s\n",
- vstring, REGVER_V1, nt_errstr(status)));
- return ntstatus_to_werror(status);
- } else {
- DEBUG(10, ("regdb_init: stored %s = %d\n",
- vstring, REGVER_V1));
+ werr = regdb_store_regdb_version(expected_version);
+ return werr;
+ }
+
+ if (vers_id > expected_version || vers_id == 0) {
+ DEBUG(1, ("regdb_init: unknown registry version %d "
+ "(code version = %d), refusing initialization\n",
+ vers_id, expected_version));
+ return WERR_CAN_NOT_COMPLETE;
+ }
+
+ if (vers_id == REGVER_V1) {
+ DEBUG(10, ("regdb_init: got registry db version %d, upgrading "
+ "to version %d\n", REGVER_V1, REGVER_V2));
+
+ if (regdb->transaction_start(regdb) != 0) {
+ return WERR_REG_IO_FAILURE;
}
+
+ werr = regdb_upgrade_v1_to_v2();
+ if (!W_ERROR_IS_OK(werr)) {
+ regdb->transaction_cancel(regdb);
+ return werr;
+ }
+
+ if (regdb->transaction_commit(regdb) != 0) {
+ return WERR_REG_IO_FAILURE;
+ }
+
+ vers_id = REGVER_V2;
}
+ /* future upgrade code should go here */
+
return WERR_OK;
}
become_root();
- regdb = db_open_trans(NULL, state_path("registry.tdb"), 0,
+ regdb = db_open(NULL, state_path("registry.tdb"), 0,
REG_TDB_FLAGS, O_RDWR, 0600);
if ( !regdb ) {
result = ntstatus_to_werror( map_nt_error_from_unix( errno ) );
return 0;
}
+WERROR regdb_transaction_start(void)
+{
+ return (regdb->transaction_start(regdb) == 0) ?
+ WERR_OK : WERR_REG_IO_FAILURE;
+}
+
+WERROR regdb_transaction_commit(void)
+{
+ return (regdb->transaction_commit(regdb) == 0) ?
+ WERR_OK : WERR_REG_IO_FAILURE;
+}
+
+WERROR regdb_transaction_cancel(void)
+{
+ return (regdb->transaction_cancel(regdb) == 0) ?
+ WERR_OK : WERR_REG_IO_FAILURE;
+}
+
/***********************************************************************
return the tdb sequence number of the registry tdb.
this is an indicator for the content of the registry
return regdb->get_seqnum(regdb);
}
+
+static WERROR regdb_delete_key_with_prefix(struct db_context *db,
+ const char *keyname,
+ const char *prefix)
+{
+ char *path;
+ WERROR werr = WERR_NOMEM;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+
+ if (keyname == NULL) {
+ werr = WERR_INVALID_PARAM;
+ goto done;
+ }
+
+ if (prefix == NULL) {
+ path = discard_const_p(char, keyname);
+ } else {
+ path = talloc_asprintf(mem_ctx, "%s\\%s", prefix, keyname);
+ if (path == NULL) {
+ goto done;
+ }
+ }
+
+ path = normalize_reg_path(mem_ctx, path);
+ if (path == NULL) {
+ goto done;
+ }
+
+ werr = ntstatus_to_werror(dbwrap_delete_bystring(db, path));
+
+ /* treat "not" found" as ok */
+ if (W_ERROR_EQUAL(werr, WERR_NOT_FOUND)) {
+ werr = WERR_OK;
+ }
+
+done:
+ talloc_free(mem_ctx);
+ return werr;
+}
+
+
+static WERROR regdb_delete_values(struct db_context *db, const char *keyname)
+{
+ return regdb_delete_key_with_prefix(db, keyname, REG_VALUE_PREFIX);
+}
+
+static WERROR regdb_delete_secdesc(struct db_context *db, const char *keyname)
+{
+ return regdb_delete_key_with_prefix(db, keyname, REG_SECDESC_PREFIX);
+}
+
+static WERROR regdb_delete_subkeylist(struct db_context *db, const char *keyname)
+{
+ return regdb_delete_key_with_prefix(db, keyname, NULL);
+}
+
+static WERROR regdb_delete_key_lists(struct db_context *db, const char *keyname)
+{
+ WERROR werr;
+
+ werr = regdb_delete_values(db, keyname);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(1, (__location__ " Deleting %s\\%s failed: %s\n",
+ REG_VALUE_PREFIX, keyname, win_errstr(werr)));
+ goto done;
+ }
+
+ werr = regdb_delete_secdesc(db, keyname);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(1, (__location__ " Deleting %s\\%s failed: %s\n",
+ REG_SECDESC_PREFIX, keyname, win_errstr(werr)));
+ goto done;
+ }
+
+ werr = regdb_delete_subkeylist(db, keyname);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(1, (__location__ " Deleting %s failed: %s\n",
+ keyname, win_errstr(werr)));
+ goto done;
+ }
+
+done:
+ return werr;
+}
+
/***********************************************************************
Add subkey strings to the registry tdb under a defined key
fmt is the same format as tdb_pack except this function only supports
fstrings
***********************************************************************/
-static bool regdb_store_keys_internal(const char *key, REGSUBKEY_CTR *ctr)
+static WERROR regdb_store_keys_internal2(struct db_context *db,
+ const char *key,
+ struct regsubkey_ctr *ctr)
{
TDB_DATA dbuf;
uint8 *buffer = NULL;
int i = 0;
uint32 len, buflen;
- bool ret = true;
uint32 num_subkeys = regsubkey_ctr_numkeys(ctr);
char *keyname = NULL;
TALLOC_CTX *ctx = talloc_stackframe();
- NTSTATUS status;
+ WERROR werr;
if (!key) {
- return false;
+ werr = WERR_INVALID_PARAM;
+ goto done;
}
keyname = talloc_strdup(ctx, key);
if (!keyname) {
- return false;
+ werr = WERR_NOMEM;
+ goto done;
}
+
keyname = normalize_reg_path(ctx, keyname);
+ if (!keyname) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
/* allocate some initial memory */
buffer = (uint8 *)SMB_MALLOC(1024);
if (buffer == NULL) {
- return false;
+ werr = WERR_NOMEM;
+ goto done;
}
buflen = 1024;
len = 0;
/* pack all the strings */
for (i=0; i<num_subkeys; i++) {
- len += tdb_pack(buffer+len, buflen-len, "f",
- regsubkey_ctr_specific_key(ctr, i));
- if (len > buflen) {
- /* allocate some extra space */
- buffer = (uint8 *)SMB_REALLOC(buffer, len*2);
+ size_t thistime;
+
+ thistime = tdb_pack(buffer+len, buflen-len, "f",
+ regsubkey_ctr_specific_key(ctr, i));
+ if (len+thistime > buflen) {
+ size_t thistime2;
+ /*
+ * tdb_pack hasn't done anything because of the short
+ * buffer, allocate extra space.
+ */
+ buffer = SMB_REALLOC_ARRAY(buffer, uint8_t,
+ (len+thistime)*2);
if(buffer == NULL) {
DEBUG(0, ("regdb_store_keys: Failed to realloc "
- "memory of size [%d]\n", len*2));
- ret = false;
+ "memory of size [%u]\n",
+ (unsigned int)(len+thistime)*2));
+ werr = WERR_NOMEM;
+ goto done;
+ }
+ buflen = (len+thistime)*2;
+ thistime2 = tdb_pack(
+ buffer+len, buflen-len, "f",
+ regsubkey_ctr_specific_key(ctr, i));
+ if (thistime2 != thistime) {
+ DEBUG(0, ("tdb_pack failed\n"));
+ werr = WERR_CAN_NOT_COMPLETE;
goto done;
}
- buflen = len*2;
- len = tdb_pack(buffer+len, buflen-len, "f",
- regsubkey_ctr_specific_key(ctr, i));
}
+ len += thistime;
}
/* finally write out the data */
dbuf.dptr = buffer;
dbuf.dsize = len;
- status = dbwrap_store_bystring(regdb, keyname, dbuf, TDB_REPLACE);
- if (!NT_STATUS_IS_OK(status)) {
- ret = false;
+ werr = ntstatus_to_werror(dbwrap_store_bystring(db, keyname, dbuf,
+ TDB_REPLACE));
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ /*
+ * Delete a sorted subkey cache for regdb_key_exists, will be
+ * recreated automatically
+ */
+ keyname = talloc_asprintf(ctx, "%s\\%s", REG_SORTED_SUBKEYS_PREFIX,
+ keyname);
+ if (keyname == NULL) {
+ werr = WERR_NOMEM;
goto done;
}
+ werr = ntstatus_to_werror(dbwrap_delete_bystring(db, keyname));
+
+ /* don't treat WERR_NOT_FOUND as an error here */
+ if (W_ERROR_EQUAL(werr, WERR_NOT_FOUND)) {
+ werr = WERR_OK;
+ }
+
done:
TALLOC_FREE(ctx);
SAFE_FREE(buffer);
- return ret;
+ return werr;
}
/***********************************************************************
do not currently exist
***********************************************************************/
-bool regdb_store_keys(const char *key, REGSUBKEY_CTR *ctr)
+struct regdb_store_keys_context {
+ const char *key;
+ struct regsubkey_ctr *ctr;
+};
+
+static NTSTATUS regdb_store_keys_action(struct db_context *db,
+ void *private_data)
{
+ struct regdb_store_keys_context *store_ctx;
+ WERROR werr;
int num_subkeys, i;
char *path = NULL;
- REGSUBKEY_CTR *subkeys = NULL, *old_subkeys = NULL;
+ struct regsubkey_ctr *subkeys = NULL, *old_subkeys = NULL;
char *oldkeyname = NULL;
- TALLOC_CTX *ctx = talloc_stackframe();
- NTSTATUS status;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
- if (!regdb_key_is_base_key(key) && !regdb_key_exists(key)) {
- goto fail;
- }
+ store_ctx = (struct regdb_store_keys_context *)private_data;
/*
- * fetch a list of the old subkeys so we can determine if anything has
- * changed
+ * Re-fetch the old keys inside the transaction
*/
- if (!(old_subkeys = TALLOC_ZERO_P(ctx, REGSUBKEY_CTR))) {
- DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
- return false;
- }
-
- regdb_fetch_keys(key, old_subkeys);
+ werr = regsubkey_ctr_init(mem_ctx, &old_subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
- if ((ctr->num_subkeys && old_subkeys->num_subkeys) &&
- (ctr->num_subkeys == old_subkeys->num_subkeys)) {
-
- for (i = 0; i<ctr->num_subkeys; i++) {
- if (strcmp(ctr->subkeys[i],
- old_subkeys->subkeys[i]) != 0) {
- break;
- }
- }
- if (i == ctr->num_subkeys) {
- /*
- * Nothing changed, no point to even start a tdb
- * transaction
- */
- TALLOC_FREE(old_subkeys);
- return true;
- }
- }
-
- TALLOC_FREE(old_subkeys);
-
- if (regdb->transaction_start(regdb) != 0) {
- DEBUG(0, ("regdb_store_keys: transaction_start failed\n"));
- goto fail;
- }
-
- /*
- * Re-fetch the old keys inside the transaction
- */
-
- if (!(old_subkeys = TALLOC_ZERO_P(ctx, REGSUBKEY_CTR))) {
- DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
- goto cancel;
- }
-
- regdb_fetch_keys(key, old_subkeys);
+ werr = regdb_fetch_keys_internal(db, store_ctx->key, old_subkeys);
+ if (!W_ERROR_IS_OK(werr) &&
+ !W_ERROR_EQUAL(werr, WERR_NOT_FOUND))
+ {
+ goto done;
+ }
/*
* Make the store operation as safe as possible without transactions:
for (i=0; i<num_subkeys; i++) {
oldkeyname = regsubkey_ctr_specific_key(old_subkeys, i);
- if (regsubkey_ctr_key_exists(ctr, oldkeyname)) {
+ if (regsubkey_ctr_key_exists(store_ctx->ctr, oldkeyname)) {
/*
* It's still around, don't delete
*/
-
continue;
}
- /* (a) Delete the value list for this key */
-
- path = talloc_asprintf(ctx, "%s/%s/%s",
- REG_VALUE_PREFIX,
- key,
- oldkeyname );
- if (!path) {
- goto cancel;
- }
- path = normalize_reg_path(ctx, path);
- if (!path) {
- goto cancel;
- }
- /* Ignore errors here, we might have no values around */
- dbwrap_delete_bystring(regdb, path);
- TALLOC_FREE(path);
-
- /* (b) Delete the secdesc for this key */
-
- path = talloc_asprintf(ctx, "%s/%s/%s",
- REG_SECDESC_PREFIX,
- key,
- oldkeyname );
- if (!path) {
- goto cancel;
- }
- path = normalize_reg_path(ctx, path);
+ path = talloc_asprintf(mem_ctx, "%s\\%s", store_ctx->key,
+ oldkeyname);
if (!path) {
- goto cancel;
- }
- status = dbwrap_delete_bystring(regdb, path);
- /* Don't fail if there are no values around. */
- if (!NT_STATUS_IS_OK(status) &&
- !NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND))
- {
- DEBUG(1, ("Deleting %s failed: %s\n", path,
- nt_errstr(status)));
- goto cancel;
+ werr = WERR_NOMEM;
+ goto done;
}
- TALLOC_FREE(path);
- /* (c) Delete the list of subkeys of this key */
+ werr = regdb_delete_key_lists(db, path);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
- path = talloc_asprintf(ctx, "%s/%s", key, oldkeyname);
- if (!path) {
- goto cancel;
- }
- path = normalize_reg_path(ctx, path);
- if (!path) {
- goto cancel;
- }
- status = dbwrap_delete_bystring(regdb, path);
- /* Don't fail if the subkey record was not found. */
- if (!NT_STATUS_IS_OK(status) &&
- !NT_STATUS_EQUAL(status, NT_STATUS_NOT_FOUND))
- {
- DEBUG(1, ("Deleting %s failed: %s\n", path,
- nt_errstr(status)));
- goto cancel;
- }
TALLOC_FREE(path);
}
/* (2) store the subkey list for the parent */
- if (!regdb_store_keys_internal(key, ctr) ) {
+ werr = regdb_store_keys_internal2(db, store_ctx->key, store_ctx->ctr);
+ if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,("regdb_store_keys: Failed to store new subkey list "
- "for parent [%s]\n", key));
- goto cancel;
+ "for parent [%s]: %s\n", store_ctx->key,
+ win_errstr(werr)));
+ goto done;
}
/* (3) now create records for any subkeys that don't already exist */
- num_subkeys = regsubkey_ctr_numkeys(ctr);
+ num_subkeys = regsubkey_ctr_numkeys(store_ctx->ctr);
if (num_subkeys == 0) {
- if (!(subkeys = TALLOC_ZERO_P(ctx, REGSUBKEY_CTR)) ) {
- DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
- goto cancel;
- }
+ werr = regsubkey_ctr_init(mem_ctx, &subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
- if (!regdb_store_keys_internal(key, subkeys)) {
+ werr = regdb_store_keys_internal2(db, store_ctx->key, subkeys);
+ if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,("regdb_store_keys: Failed to store "
- "new record for key [%s]\n", key));
- goto cancel;
+ "new record for key [%s]: %s\n",
+ store_ctx->key, win_errstr(werr)));
+ goto done;
}
TALLOC_FREE(subkeys);
-
}
for (i=0; i<num_subkeys; i++) {
- path = talloc_asprintf(ctx, "%s/%s",
- key,
- regsubkey_ctr_specific_key(ctr, i));
+ path = talloc_asprintf(mem_ctx, "%s\\%s", store_ctx->key,
+ regsubkey_ctr_specific_key(store_ctx->ctr, i));
if (!path) {
- goto cancel;
- }
- if (!(subkeys = TALLOC_ZERO_P(ctx, REGSUBKEY_CTR)) ) {
- DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
- goto cancel;
+ werr = WERR_NOMEM;
+ goto done;
}
+ werr = regsubkey_ctr_init(mem_ctx, &subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
- if (regdb_fetch_keys( path, subkeys ) == -1) {
+ werr = regdb_fetch_keys_internal(db, path, subkeys);
+ if (!W_ERROR_IS_OK(werr)) {
/* create a record with 0 subkeys */
- if (!regdb_store_keys_internal(path, subkeys)) {
+ werr = regdb_store_keys_internal2(db, path, subkeys);
+ if (!W_ERROR_IS_OK(werr)) {
DEBUG(0,("regdb_store_keys: Failed to store "
- "new record for key [%s]\n", path));
- goto cancel;
+ "new record for key [%s]: %s\n", path,
+ win_errstr(werr)));
+ goto done;
}
}
TALLOC_FREE(path);
}
- if (regdb->transaction_commit(regdb) != 0) {
- DEBUG(0, ("regdb_store_keys: Could not commit transaction\n"));
- goto fail;
+ werr = WERR_OK;
+
+done:
+ talloc_free(mem_ctx);
+ return werror_to_ntstatus(werr);
+}
+
+static bool regdb_store_keys_internal(struct db_context *db, const char *key,
+ struct regsubkey_ctr *ctr)
+{
+ int num_subkeys, old_num_subkeys, i;
+ struct regsubkey_ctr *old_subkeys = NULL;
+ TALLOC_CTX *ctx = talloc_stackframe();
+ WERROR werr;
+ bool ret = false;
+ struct regdb_store_keys_context store_ctx;
+
+ if (!regdb_key_is_base_key(key) && !regdb_key_exists(db, key)) {
+ goto done;
}
- TALLOC_FREE(ctx);
- return true;
+ /*
+ * fetch a list of the old subkeys so we can determine if anything has
+ * changed
+ */
-cancel:
- if (regdb->transaction_cancel(regdb) != 0) {
- smb_panic("regdb_store_keys: transaction_cancel failed\n");
+ werr = regsubkey_ctr_init(ctx, &old_subkeys);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
+ goto done;
}
-fail:
+ werr = regdb_fetch_keys_internal(db, key, old_subkeys);
+ if (!W_ERROR_IS_OK(werr) &&
+ !W_ERROR_EQUAL(werr, WERR_NOT_FOUND))
+ {
+ goto done;
+ }
+
+ num_subkeys = regsubkey_ctr_numkeys(ctr);
+ old_num_subkeys = regsubkey_ctr_numkeys(old_subkeys);
+ if ((num_subkeys && old_num_subkeys) &&
+ (num_subkeys == old_num_subkeys)) {
+
+ for (i = 0; i < num_subkeys; i++) {
+ if (strcmp(regsubkey_ctr_specific_key(ctr, i),
+ regsubkey_ctr_specific_key(old_subkeys, i))
+ != 0)
+ {
+ break;
+ }
+ }
+ if (i == num_subkeys) {
+ /*
+ * Nothing changed, no point to even start a tdb
+ * transaction
+ */
+
+ ret = true;
+ goto done;
+ }
+ }
+
+ TALLOC_FREE(old_subkeys);
+
+ store_ctx.key = key;
+ store_ctx.ctr = ctr;
+
+ werr = ntstatus_to_werror(dbwrap_trans_do(db,
+ regdb_store_keys_action,
+ &store_ctx));
+
+ ret = W_ERROR_IS_OK(werr);
+
+done:
TALLOC_FREE(ctx);
- return false;
+ return ret;
}
+bool regdb_store_keys(const char *key, struct regsubkey_ctr *ctr)
+{
+ return regdb_store_keys_internal(regdb, key, ctr);
+}
+
+/**
+ * create a subkey of a given key
+ */
+
+struct regdb_create_subkey_context {
+ const char *key;
+ const char *subkey;
+};
+
+static NTSTATUS regdb_create_subkey_action(struct db_context *db,
+ void *private_data)
+{
+ WERROR werr;
+ struct regdb_create_subkey_context *create_ctx;
+ struct regsubkey_ctr *subkeys;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+
+ create_ctx = (struct regdb_create_subkey_context *)private_data;
+
+ werr = regsubkey_ctr_init(mem_ctx, &subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regdb_fetch_keys_internal(db, create_ctx->key, subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regsubkey_ctr_addkey(subkeys, create_ctx->subkey);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regdb_store_keys_internal2(db, create_ctx->key, subkeys);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0, (__location__ " failed to store new subkey list for "
+ "parent key %s: %s\n", create_ctx->key,
+ win_errstr(werr)));
+ }
+
+done:
+ talloc_free(mem_ctx);
+ return werror_to_ntstatus(werr);
+}
+
+static WERROR regdb_create_subkey(const char *key, const char *subkey)
+{
+ WERROR werr;
+ struct regsubkey_ctr *subkeys;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+ struct regdb_create_subkey_context create_ctx;
+
+ if (!regdb_key_is_base_key(key) && !regdb_key_exists(regdb, key)) {
+ werr = WERR_NOT_FOUND;
+ goto done;
+ }
+
+ werr = regsubkey_ctr_init(mem_ctx, &subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regdb_fetch_keys_internal(regdb, key, subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ if (regsubkey_ctr_key_exists(subkeys, subkey)) {
+ werr = WERR_OK;
+ goto done;
+ }
+
+ talloc_free(subkeys);
+
+ create_ctx.key = key;
+ create_ctx.subkey = subkey;
+
+ werr = ntstatus_to_werror(dbwrap_trans_do(regdb,
+ regdb_create_subkey_action,
+ &create_ctx));
+
+done:
+ talloc_free(mem_ctx);
+ return werr;
+}
+
+/**
+ * create a subkey of a given key
+ */
+
+struct regdb_delete_subkey_context {
+ const char *key;
+ const char *subkey;
+ const char *path;
+};
+
+static NTSTATUS regdb_delete_subkey_action(struct db_context *db,
+ void *private_data)
+{
+ WERROR werr;
+ struct regdb_delete_subkey_context *delete_ctx;
+ struct regsubkey_ctr *subkeys;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+
+ delete_ctx = (struct regdb_delete_subkey_context *)private_data;
+
+ werr = regdb_delete_key_lists(db, delete_ctx->path);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regsubkey_ctr_init(mem_ctx, &subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regdb_fetch_keys_internal(db, delete_ctx->key, subkeys);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regsubkey_ctr_delkey(subkeys, delete_ctx->subkey);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
+
+ werr = regdb_store_keys_internal2(db, delete_ctx->key, subkeys);
+ if (!W_ERROR_IS_OK(werr)) {
+ DEBUG(0, (__location__ " failed to store new subkey_list for "
+ "parent key %s: %s\n", delete_ctx->key,
+ win_errstr(werr)));
+ }
+
+done:
+ talloc_free(mem_ctx);
+ return werror_to_ntstatus(werr);
+}
+
+static WERROR regdb_delete_subkey(const char *key, const char *subkey)
+{
+ WERROR werr;
+ char *path;
+ struct regdb_delete_subkey_context delete_ctx;
+ TALLOC_CTX *mem_ctx = talloc_stackframe();
+
+ if (!regdb_key_is_base_key(key) && !regdb_key_exists(regdb, key)) {
+ werr = WERR_NOT_FOUND;
+ goto done;
+ }
+
+ path = talloc_asprintf(mem_ctx, "%s\\%s", key, subkey);
+ if (path == NULL) {
+ werr = WERR_NOMEM;
+ goto done;
+ }
+
+ if (!regdb_key_exists(regdb, path)) {
+ werr = WERR_OK;
+ goto done;
+ }
+
+ delete_ctx.key = key;
+ delete_ctx.subkey = subkey;
+ delete_ctx.path = path;
+
+ werr = ntstatus_to_werror(dbwrap_trans_do(regdb,
+ regdb_delete_subkey_action,
+ &delete_ctx));
-static TDB_DATA regdb_fetch_key_internal(TALLOC_CTX *mem_ctx, const char *key)
+done:
+ talloc_free(mem_ctx);
+ return werr;
+}
+
+static TDB_DATA regdb_fetch_key_internal(struct db_context *db,
+ TALLOC_CTX *mem_ctx, const char *key)
{
char *path = NULL;
TDB_DATA data;
return make_tdb_data(NULL, 0);
}
- data = dbwrap_fetch_bystring(regdb, mem_ctx, path);
+ data = dbwrap_fetch_bystring(db, mem_ctx, path);
TALLOC_FREE(path);
return data;
/**
* check whether a given key name represents a base key,
- * i.e one without a subkey separator ('/' or '\').
+ * i.e one without a subkey separator ('\').
*/
static bool regdb_key_is_base_key(const char *key)
{
goto done;
}
- ret = (strrchr(path, '/') == NULL);
+ ret = (strrchr(path, '\\') == NULL);
done:
TALLOC_FREE(mem_ctx);
return ret;
}
+/*
+ * regdb_key_exists() is a very frequent operation. It can be quite
+ * time-consuming to fully fetch the parent's subkey list, talloc_strdup all
+ * subkeys and then compare the keyname linearly to all the parent's subkeys.
+ *
+ * The following code tries to make this operation as efficient as possible:
+ * Per registry key we create a list of subkeys that is very efficient to
+ * search for existence of a subkey. Its format is:
+ *
+ * 4 bytes num_subkeys
+ * 4*num_subkey bytes offset into the string array
+ * then follows a sorted list of subkeys in uppercase
+ *
+ * This record is created by create_sorted_subkeys() on demand if it does not
+ * exist. scan_parent_subkeys() uses regdb->parse_record to search the sorted
+ * list, the parsing code and the binary search can be found in
+ * parent_subkey_scanner. The code uses parse_record() to avoid a memcpy of
+ * the potentially large subkey record.
+ *
+ * The sorted subkey record is deleted in regdb_store_keys_internal2 and
+ * recreated on demand.
+ */
+
+static int cmp_keynames(char **p1, char **p2)
+{
+ return StrCaseCmp(*p1, *p2);
+}
+
+struct create_sorted_subkeys_context {
+ const char *key;
+ const char *sorted_keyname;
+};
+
+static NTSTATUS create_sorted_subkeys_action(struct db_context *db,
+ void *private_data)
+{
+ char **sorted_subkeys;
+ struct regsubkey_ctr *ctr;
+ NTSTATUS status;
+ char *buf;
+ char *p;
+ int i;
+ size_t len;
+ int num_subkeys;
+ struct create_sorted_subkeys_context *sorted_ctx;
+
+ sorted_ctx = (struct create_sorted_subkeys_context *)private_data;
+
+ /*
+ * In this function, we only treat failing of the actual write to
+ * the db as a real error. All preliminary errors, at a stage when
+ * nothing has been written to the DB yet are treated as success
+ * to be committed (as an empty transaction).
+ *
+ * The reason is that this (disposable) call might be nested in other
+ * transactions. Doing a cancel here would destroy the possibility of
+ * a transaction_commit for transactions that we might be wrapped in.
+ */
+
+ status = werror_to_ntstatus(regsubkey_ctr_init(talloc_tos(), &ctr));
+ if (!NT_STATUS_IS_OK(status)) {
+ /* don't treat this as an error */
+ status = NT_STATUS_OK;
+ goto done;
+ }
+
+ status = werror_to_ntstatus(regdb_fetch_keys_internal(db,
+ sorted_ctx->key,
+ ctr));
+ if (!NT_STATUS_IS_OK(status)) {
+ /* don't treat this as an error */
+ status = NT_STATUS_OK;
+ goto done;
+ }
+
+ num_subkeys = regsubkey_ctr_numkeys(ctr);
+ sorted_subkeys = talloc_array(ctr, char *, num_subkeys);
+ if (sorted_subkeys == NULL) {
+ /* don't treat this as an error */
+ goto done;
+ }
+
+ len = 4 + 4*num_subkeys;
+
+ for (i = 0; i < num_subkeys; i++) {
+ sorted_subkeys[i] = talloc_strdup_upper(sorted_subkeys,
+ regsubkey_ctr_specific_key(ctr, i));
+ if (sorted_subkeys[i] == NULL) {
+ /* don't treat this as an error */
+ goto done;
+ }
+ len += strlen(sorted_subkeys[i])+1;
+ }
+
+ TYPESAFE_QSORT(sorted_subkeys, num_subkeys, cmp_keynames);
+
+ buf = talloc_array(ctr, char, len);
+ if (buf == NULL) {
+ /* don't treat this as an error */
+ goto done;
+ }
+ p = buf + 4 + 4*num_subkeys;
+
+ SIVAL(buf, 0, num_subkeys);
+
+ for (i=0; i < num_subkeys; i++) {
+ ptrdiff_t offset = p - buf;
+ SIVAL(buf, 4 + 4*i, offset);
+ strlcpy(p, sorted_subkeys[i], len-offset);
+ p += strlen(sorted_subkeys[i]) + 1;
+ }
+
+ status = dbwrap_store_bystring(
+ db, sorted_ctx->sorted_keyname, make_tdb_data((uint8_t *)buf,
+ len),
+ TDB_REPLACE);
+
+done:
+ talloc_free(ctr);
+ return status;
+}
+
+static bool create_sorted_subkeys(const char *key, const char *sorted_keyname)
+{
+ NTSTATUS status;
+ struct create_sorted_subkeys_context sorted_ctx;
+
+ sorted_ctx.key = key;
+ sorted_ctx.sorted_keyname = sorted_keyname;
+
+ status = dbwrap_trans_do(regdb,
+ create_sorted_subkeys_action,
+ &sorted_ctx);
+
+ return NT_STATUS_IS_OK(status);
+}
+
+struct scan_subkey_state {
+ char *name;
+ bool scanned;
+ bool found;
+};
+
+static int parent_subkey_scanner(TDB_DATA key, TDB_DATA data,
+ void *private_data)
+{
+ struct scan_subkey_state *state =
+ (struct scan_subkey_state *)private_data;
+ uint32_t num_subkeys;
+ uint32_t l, u;
+
+ if (data.dsize < sizeof(uint32_t)) {
+ return -1;
+ }
+
+ state->scanned = true;
+ state->found = false;
+
+ tdb_unpack(data.dptr, data.dsize, "d", &num_subkeys);
+
+ l = 0;
+ u = num_subkeys;
+
+ while (l < u) {
+ uint32_t idx = (l+u)/2;
+ char *s = (char *)data.dptr + IVAL(data.dptr, 4 + 4*idx);
+ int comparison = strcmp(state->name, s);
+
+ if (comparison < 0) {
+ u = idx;
+ } else if (comparison > 0) {
+ l = idx + 1;
+ } else {
+ state->found = true;
+ return 0;
+ }
+ }
+ return 0;
+}
+
+static bool scan_parent_subkeys(struct db_context *db, const char *parent,
+ const char *name)
+{
+ char *path = NULL;
+ char *key = NULL;
+ struct scan_subkey_state state = { 0, };
+ bool result = false;
+ int res;
+
+ state.name = NULL;
+
+ path = normalize_reg_path(talloc_tos(), parent);
+ if (path == NULL) {
+ goto fail;
+ }
+
+ key = talloc_asprintf(talloc_tos(), "%s\\%s",
+ REG_SORTED_SUBKEYS_PREFIX, path);
+ if (key == NULL) {
+ goto fail;
+ }
+
+ state.name = talloc_strdup_upper(talloc_tos(), name);
+ if (state.name == NULL) {
+ goto fail;
+ }
+ state.scanned = false;
+
+ res = db->parse_record(db, string_term_tdb_data(key),
+ parent_subkey_scanner, &state);
+
+ if (state.scanned) {
+ result = state.found;
+ } else {
+ res = db->transaction_start(db);
+ if (res != 0) {
+ DEBUG(0, ("error starting transacion\n"));
+ goto fail;
+ }
+
+ if (!create_sorted_subkeys(path, key)) {
+ res = db->transaction_cancel(db);
+ if (res != 0) {
+ smb_panic("Failed to cancel transaction.");
+ }
+ goto fail;
+ }
+
+ res = db->parse_record(db, string_term_tdb_data(key),
+ parent_subkey_scanner, &state);
+ if ((res == 0) && (state.scanned)) {
+ result = state.found;
+ }
+
+ res = db->transaction_commit(db);
+ if (res != 0) {
+ DEBUG(0, ("error committing transaction\n"));
+ result = false;
+ }
+ }
+
+ fail:
+ TALLOC_FREE(path);
+ TALLOC_FREE(state.name);
+ return result;
+}
/**
* Check for the existence of a key.
* The exeption of this are keys without a parent key,
* i.e. the "base" keys (HKLM, HKCU, ...).
*/
-static bool regdb_key_exists(const char *key)
+static bool regdb_key_exists(struct db_context *db, const char *key)
{
TALLOC_CTX *mem_ctx = talloc_stackframe();
TDB_DATA value;
goto done;
}
- p = strrchr(path, '/');
+ p = strrchr(path, '\\');
if (p == NULL) {
/* this is a base key */
- value = regdb_fetch_key_internal(mem_ctx, path);
+ value = regdb_fetch_key_internal(db, mem_ctx, path);
ret = (value.dptr != NULL);
} else {
- /* get the list of subkeys of the parent key */
- uint32 num_items, len, i;
- fstring subkeyname;
-
*p = '\0';
- p++;
- value = regdb_fetch_key_internal(mem_ctx, path);
- if (value.dptr == NULL) {
- goto done;
- }
-
- len = tdb_unpack(value.dptr, value.dsize, "d", &num_items);
- for (i = 0; i < num_items; i++) {
- len += tdb_unpack(value.dptr +len, value.dsize -len,
- "f", &subkeyname);
- if (strequal(subkeyname, p)) {
- ret = true;
- goto done;
- }
- }
+ ret = scan_parent_subkeys(db, path, p+1);
}
done:
released by the caller.
***********************************************************************/
-int regdb_fetch_keys(const char *key, REGSUBKEY_CTR *ctr)
+static WERROR regdb_fetch_keys_internal(struct db_context *db, const char *key,
+ struct regsubkey_ctr *ctr)
{
WERROR werr;
- uint32 num_items;
+ uint32_t num_items;
uint8 *buf;
uint32 buflen, len;
int i;
fstring subkeyname;
- int ret = -1;
TALLOC_CTX *frame = talloc_stackframe();
TDB_DATA value;
DEBUG(11,("regdb_fetch_keys: Enter key => [%s]\n", key ? key : "NULL"));
- if (!regdb_key_exists(key)) {
+ frame = talloc_stackframe();
+
+ if (!regdb_key_exists(db, key)) {
+ DEBUG(10, ("key [%s] not found\n", key));
+ werr = WERR_NOT_FOUND;
goto done;
}
- ctr->seqnum = regdb_get_seqnum();
+ werr = regsubkey_ctr_set_seqnum(ctr, db->get_seqnum(db));
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
- value = regdb_fetch_key_internal(frame, key);
+ value = regdb_fetch_key_internal(db, frame, key);
- if (value.dptr == NULL) {
+ if (value.dsize == 0 || value.dptr == NULL) {
DEBUG(10, ("regdb_fetch_keys: no subkeys found for key [%s]\n",
key));
- ret = 0;
goto done;
}
buf = value.dptr;
buflen = value.dsize;
len = tdb_unpack( buf, buflen, "d", &num_items);
+ if (len == (uint32_t)-1) {
+ werr = WERR_NOT_FOUND;
+ goto done;
+ }
+
+ werr = regsubkey_ctr_reinit(ctr);
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
for (i=0; i<num_items; i++) {
len += tdb_unpack(buf+len, buflen-len, "f", subkeyname);
werr = regsubkey_ctr_addkey(ctr, subkeyname);
if (!W_ERROR_IS_OK(werr)) {
DEBUG(5, ("regdb_fetch_keys: regsubkey_ctr_addkey "
- "failed: %s\n", dos_errstr(werr)));
+ "failed: %s\n", win_errstr(werr)));
+ num_items = 0;
goto done;
}
}
DEBUG(11,("regdb_fetch_keys: Exit [%d] items\n", num_items));
- ret = num_items;
done:
TALLOC_FREE(frame);
- return ret;
+ return werr;
+}
+
+int regdb_fetch_keys(const char *key, struct regsubkey_ctr *ctr)
+{
+ WERROR werr;
+
+ werr = regdb_fetch_keys_internal(regdb, key, ctr);
+ if (!W_ERROR_IS_OK(werr)) {
+ return -1;
+ }
+
+ return regsubkey_ctr_numkeys(ctr);
}
/****************************************************************************
Unpack a list of registry values frem the TDB
***************************************************************************/
-static int regdb_unpack_values(REGVAL_CTR *values, uint8 *buf, int buflen)
+static int regdb_unpack_values(struct regval_ctr *values, uint8 *buf, int buflen)
{
int len = 0;
uint32 type;
&size,
&data_p);
- /* add the new value. Paranoid protective code -- make sure data_p is valid */
-
- if (*valuename && size && data_p) {
- regval_ctr_addvalue(values, valuename, type,
- (const char *)data_p, size);
- }
+ regval_ctr_addvalue(values, valuename, type,
+ (uint8_t *)data_p, size);
SAFE_FREE(data_p); /* 'B' option to tdb_unpack does a malloc() */
DEBUG(8,("specific: [%s], len: %d\n", valuename, size));
Pack all values in all printer keys
***************************************************************************/
-static int regdb_pack_values(REGVAL_CTR *values, uint8 *buf, int buflen)
+static int regdb_pack_values(struct regval_ctr *values, uint8 *buf, int buflen)
{
int len = 0;
int i;
- REGISTRY_VALUE *val;
+ struct regval_blob *val;
int num_values;
if ( !values )
released by the caller.
***********************************************************************/
-int regdb_fetch_values( const char* key, REGVAL_CTR *values )
+static int regdb_fetch_values_internal(struct db_context *db, const char* key,
+ struct regval_ctr *values)
{
char *keystr = NULL;
TALLOC_CTX *ctx = talloc_stackframe();
int ret = 0;
TDB_DATA value;
+ WERROR werr;
DEBUG(10,("regdb_fetch_values: Looking for value of key [%s] \n", key));
- if (!regdb_key_exists(key)) {
+ if (!regdb_key_exists(db, key)) {
goto done;
}
- keystr = talloc_asprintf(ctx, "%s/%s", REG_VALUE_PREFIX, key);
+ keystr = talloc_asprintf(ctx, "%s\\%s", REG_VALUE_PREFIX, key);
if (!keystr) {
goto done;
}
- values->seqnum = regdb_get_seqnum();
+ werr = regval_ctr_set_seqnum(values, db->get_seqnum(db));
+ W_ERROR_NOT_OK_GOTO_DONE(werr);
- value = regdb_fetch_key_internal(ctx, keystr);
+ value = regdb_fetch_key_internal(db, ctx, keystr);
if (!value.dptr) {
/* all keys have zero values by default */
return ret;
}
-bool regdb_store_values( const char *key, REGVAL_CTR *values )
+int regdb_fetch_values(const char* key, struct regval_ctr *values)
+{
+ return regdb_fetch_values_internal(regdb, key, values);
+}
+
+static bool regdb_store_values_internal(struct db_context *db, const char *key,
+ struct regval_ctr *values)
{
TDB_DATA old_data, data;
char *keystr = NULL;
DEBUG(10,("regdb_store_values: Looking for value of key [%s] \n", key));
- if (!regdb_key_exists(key)) {
+ if (!regdb_key_exists(db, key)) {
goto done;
}
SMB_ASSERT( len == data.dsize );
- keystr = talloc_asprintf(ctx, "%s/%s", REG_VALUE_PREFIX, key );
+ keystr = talloc_asprintf(ctx, "%s\\%s", REG_VALUE_PREFIX, key );
if (!keystr) {
goto done;
}
goto done;
}
- old_data = dbwrap_fetch_bystring(regdb, ctx, keystr);
+ old_data = dbwrap_fetch_bystring(db, ctx, keystr);
if ((old_data.dptr != NULL)
&& (old_data.dsize == data.dsize)
goto done;
}
- status = dbwrap_trans_store(regdb, string_term_tdb_data(keystr), data,
- TDB_REPLACE);
+ status = dbwrap_trans_store_bystring(db, keystr, data, TDB_REPLACE);
result = NT_STATUS_IS_OK(status);
return result;
}
+bool regdb_store_values(const char *key, struct regval_ctr *values)
+{
+ return regdb_store_values_internal(regdb, key, values);
+}
+
static WERROR regdb_get_secdesc(TALLOC_CTX *mem_ctx, const char *key,
struct security_descriptor **psecdesc)
{
DEBUG(10, ("regdb_get_secdesc: Getting secdesc of key [%s]\n", key));
- if (!regdb_key_exists(key)) {
+ if (!regdb_key_exists(regdb, key)) {
err = WERR_BADFILE;
goto done;
}
- tdbkey = talloc_asprintf(tmp_ctx, "%s/%s", REG_SECDESC_PREFIX, key);
+ tdbkey = talloc_asprintf(tmp_ctx, "%s\\%s", REG_SECDESC_PREFIX, key);
+ if (tdbkey == NULL) {
+ err = WERR_NOMEM;
+ goto done;
+ }
+
+ tdbkey = normalize_reg_path(tmp_ctx, tdbkey);
if (tdbkey == NULL) {
err = WERR_NOMEM;
goto done;
}
- normalize_dbkey(tdbkey);
data = dbwrap_fetch_bystring(regdb, tmp_ctx, tdbkey);
if (data.dptr == NULL) {
{
TALLOC_CTX *mem_ctx = talloc_stackframe();
char *tdbkey;
- NTSTATUS status;
WERROR err = WERR_NOMEM;
TDB_DATA tdbdata;
- if (!regdb_key_exists(key)) {
+ if (!regdb_key_exists(regdb, key)) {
err = WERR_BADFILE;
goto done;
}
- tdbkey = talloc_asprintf(mem_ctx, "%s/%s", REG_SECDESC_PREFIX, key);
+ tdbkey = talloc_asprintf(mem_ctx, "%s\\%s", REG_SECDESC_PREFIX, key);
if (tdbkey == NULL) {
goto done;
}
- normalize_dbkey(tdbkey);
+
+ tdbkey = normalize_reg_path(mem_ctx, tdbkey);
+ if (tdbkey == NULL) {
+ err = WERR_NOMEM;
+ goto done;
+ }
if (secdesc == NULL) {
/* assuming a delete */
- status = dbwrap_trans_delete(regdb,
- string_term_tdb_data(tdbkey));
- if (NT_STATUS_IS_OK(status)) {
- err = WERR_OK;
- } else {
- err = ntstatus_to_werror(status);
- }
+ err = ntstatus_to_werror(dbwrap_trans_delete_bystring(regdb,
+ tdbkey));
goto done;
}
err = ntstatus_to_werror(marshall_sec_desc(mem_ctx, secdesc,
&tdbdata.dptr,
&tdbdata.dsize));
- if (!W_ERROR_IS_OK(err)) {
- goto done;
- }
+ W_ERROR_NOT_OK_GOTO_DONE(err);
- status = dbwrap_trans_store(regdb, string_term_tdb_data(tdbkey),
- tdbdata, 0);
- if (!NT_STATUS_IS_OK(status)) {
- err = ntstatus_to_werror(status);
- goto done;
- }
+ err = ntstatus_to_werror(dbwrap_trans_store_bystring(regdb, tdbkey,
+ tdbdata, 0));
done:
TALLOC_FREE(mem_ctx);
return err;
}
-bool regdb_subkeys_need_update(REGSUBKEY_CTR *subkeys)
+bool regdb_subkeys_need_update(struct regsubkey_ctr *subkeys)
{
- return (regdb_get_seqnum() != subkeys->seqnum);
+ return (regdb_get_seqnum() != regsubkey_ctr_get_seqnum(subkeys));
}
-bool regdb_values_need_update(REGVAL_CTR *values)
+bool regdb_values_need_update(struct regval_ctr *values)
{
- return (regdb_get_seqnum() != values->seqnum);
+ return (regdb_get_seqnum() != regval_ctr_get_seqnum(values));
}
/*
* Table of function pointers for default access
*/
-REGISTRY_OPS regdb_ops = {
+struct registry_ops regdb_ops = {
.fetch_subkeys = regdb_fetch_keys,
.fetch_values = regdb_fetch_values,
.store_subkeys = regdb_store_keys,
.store_values = regdb_store_values,
+ .create_subkey = regdb_create_subkey,
+ .delete_subkey = regdb_delete_subkey,
.get_secdesc = regdb_get_secdesc,
.set_secdesc = regdb_set_secdesc,
.subkeys_need_update = regdb_subkeys_need_update,
git.samba.org / vlendec / samba-autobuild / .git / blobdiff