#define DBGC_CLASS DBGC_RPC_SRV
static TDB_CONTEXT *tdb_reg;
+static int tdb_refcount;
#define VALUE_PREFIX "SAMBA_REGVAL"
+#define SECDESC_PREFIX "SAMBA_SECDESC"
+
+#define REG_TDB_FLAGS TDB_SEQNUM
/* List the deepest path into the registry. All part components will be created.*/
-/* If you want to have a part of the path controlled by the tdb abd part by
+/* If you want to have a part of the path controlled by the tdb and part by
a virtual registry db (e.g. printing), then you have to list the deepest path.
For example,"HKLM/SOFTWARE/Microsoft/Windows NT/CurrentVersion/Print"
allows the reg_db backend to handle everything up to
KEY_PRINTING,
KEY_SHARES,
KEY_EVENTLOG,
+ KEY_SMBCONF,
"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Perflib",
"HKLM\\SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\Perflib\\009",
"HKLM\\SYSTEM\\CurrentControlSet\\Control\\Print\\Monitors",
"HKLM\\SYSTEM\\CurrentControlSet\\Control\\ProductOptions",
+ "HKLM\\SYSTEM\\CurrentControlSet\\Control\\Terminal Server\\DefaultUserConfiguration",
"HKLM\\SYSTEM\\CurrentControlSet\\Services\\TcpIp\\Parameters",
"HKLM\\SYSTEM\\CurrentControlSet\\Services\\Netlogon\\Parameters",
"HKU",
{
pstring path, base, remaining;
fstring keyname, subkeyname;
- REGSUBKEY_CTR subkeys;
- REGVAL_CTR values;
+ REGSUBKEY_CTR *subkeys;
+ REGVAL_CTR *values;
int i;
const char *p, *p2;
UNISTR2 data;
+
+ /*
+ * There are potentially quite a few store operations which are all
+ * indiviually wrapped in tdb transactions. Wrapping them in a single
+ * transaction gives just a single transaction_commit() to actually do
+ * its fsync()s. See tdb/common/transaction.c for info about nested
+ * transaction behaviour.
+ */
+
+ if ( tdb_transaction_start( tdb_reg ) == -1 ) {
+ DEBUG(0, ("init_registry_data: tdb_transaction_start "
+ "failed\n"));
+ return False;
+ }
/* loop over all of the predefined paths and add each component */
we are about to update the record. We just want any
subkeys already present */
- regsubkey_ctr_init( &subkeys );
-
- regdb_fetch_keys( base, &subkeys );
+ if ( !(subkeys = TALLOC_ZERO_P( NULL, REGSUBKEY_CTR )) ) {
+ DEBUG(0,("talloc() failure!\n"));
+ goto fail;
+ }
+
+ regdb_fetch_keys( base, subkeys );
if ( *subkeyname )
- regsubkey_ctr_addkey( &subkeys, subkeyname );
- if ( !regdb_store_keys( base, &subkeys ))
- return False;
+ regsubkey_ctr_addkey( subkeys, subkeyname );
+ if ( !regdb_store_keys( base, subkeys ))
+ goto fail;
- regsubkey_ctr_destroy( &subkeys );
+ TALLOC_FREE( subkeys );
}
}
/* loop over all of the predefined values and add each component */
for ( i=0; builtin_registry_values[i].path != NULL; i++ ) {
- regval_ctr_init( &values );
-
- regdb_fetch_values( builtin_registry_values[i].path, &values );
- switch( builtin_registry_values[i].type ) {
+ if ( !(values = TALLOC_ZERO_P( NULL, REGVAL_CTR )) ) {
+ DEBUG(0,("talloc() failure!\n"));
+ goto fail;
+ }
+
+ regdb_fetch_values( 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 ) )
+ {
+ switch( builtin_registry_values[i].type ) {
case REG_DWORD:
- regval_ctr_addvalue( &values,
+ regval_ctr_addvalue( values,
builtin_registry_values[i].valuename,
REG_DWORD,
(char*)&builtin_registry_values[i].data.dw_value,
case REG_SZ:
init_unistr2( &data, builtin_registry_values[i].data.string, UNI_STR_TERMINATE);
- regval_ctr_addvalue( &values,
+ regval_ctr_addvalue( values,
builtin_registry_values[i].valuename,
REG_SZ,
(char*)data.buffer,
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 );
}
- regdb_store_values( builtin_registry_values[i].path, &values );
- regval_ctr_destroy( &values );
+ TALLOC_FREE( values );
}
+ if (tdb_transaction_commit( tdb_reg ) == -1) {
+ DEBUG(0, ("init_registry_data: Could not commit "
+ "transaction\n"));
+ return False;
+ }
+
return True;
+
+ fail:
+
+ if (tdb_transaction_cancel( tdb_reg ) == -1) {
+ smb_panic("init_registry_data: tdb_transaction_cancel "
+ "failed\n");
+ }
+
+ return False;
}
/***********************************************************************
Open the registry database
***********************************************************************/
-BOOL init_registry_db( void )
+BOOL regdb_init( void )
{
const char *vstring = "INFO/version";
uint32 vers_id;
if ( tdb_reg )
return True;
- /* placeholder tdb; reinit upon startup */
-
- if ( !(tdb_reg = tdb_open_log(lock_path("registry.tdb"), 0, TDB_DEFAULT, O_RDWR, 0600)) )
+ if ( !(tdb_reg = tdb_open_log(lock_path("registry.tdb"), 0, REG_TDB_FLAGS, O_RDWR, 0600)) )
{
- tdb_reg = tdb_open_log(lock_path("registry.tdb"), 0, TDB_DEFAULT, O_RDWR|O_CREAT, 0600);
+ tdb_reg = tdb_open_log(lock_path("registry.tdb"), 0, REG_TDB_FLAGS, O_RDWR|O_CREAT, 0600);
if ( !tdb_reg ) {
- DEBUG(0,("init_registry: Failed to open registry %s (%s)\n",
+ DEBUG(0,("regdb_init: Failed to open registry %s (%s)\n",
lock_path("registry.tdb"), strerror(errno) ));
return False;
}
- DEBUG(10,("init_registry: Successfully created registry tdb\n"));
+ DEBUG(10,("regdb_init: Successfully created registry tdb\n"));
}
+
+ tdb_refcount = 1;
vers_id = tdb_fetch_int32(tdb_reg, vstring);
if ( vers_id != REGVER_V1 ) {
+ /* any upgrade code here if needed */
+ }
- /* create the registry here */
+ /* always setup the necessary keys and values */
- if ( !init_registry_data() ) {
- DEBUG(0,("init_registry: Failed to initiailize data in registry!\n"));
- return False;
- }
+ if ( !init_registry_data() ) {
+ DEBUG(0,("init_registry: Failed to initialize data in registry!\n"));
+ return False;
}
return True;
}
+/***********************************************************************
+ Open the registry. Must already have been initialized by regdb_init()
+ ***********************************************************************/
+
+WERROR regdb_open( void )
+{
+ WERROR result = WERR_OK;
+
+ if ( tdb_reg ) {
+ DEBUG(10,("regdb_open: incrementing refcount (%d)\n", tdb_refcount));
+ tdb_refcount++;
+ return WERR_OK;
+ }
+
+ become_root();
+
+ tdb_reg = tdb_open_log(lock_path("registry.tdb"), 0, REG_TDB_FLAGS, O_RDWR, 0600);
+ if ( !tdb_reg ) {
+ result = ntstatus_to_werror( map_nt_error_from_unix( errno ) );
+ DEBUG(0,("regdb_open: Failed to open %s! (%s)\n",
+ lock_path("registry.tdb"), strerror(errno) ));
+ }
+
+ unbecome_root();
+
+ tdb_refcount = 1;
+ DEBUG(10,("regdb_open: refcount reset (%d)\n", tdb_refcount));
+
+ return result;
+}
+
+/***********************************************************************
+ ***********************************************************************/
+
+int regdb_close( void )
+{
+ int ret;
+
+ tdb_refcount--;
+
+ DEBUG(10,("regdb_close: decrementing refcount (%d)\n", tdb_refcount));
+
+ if ( tdb_refcount > 0 )
+ return 0;
+
+ SMB_ASSERT( tdb_refcount >= 0 );
+
+ ret = tdb_close( tdb_reg );
+ tdb_reg = NULL;
+
+ return ret;
+}
+
+/***********************************************************************
+ return the tdb sequence number of the registry tdb.
+ this is an indicator for the content of the registry
+ having changed. it will change upon regdb_init, too, though.
+ ***********************************************************************/
+int regdb_get_seqnum(void)
+{
+ return tdb_get_seqnum(tdb_reg);
+}
+
/***********************************************************************
Add subkey strings to the registry tdb under a defined key
fmt is the same format as tdb_pack except this function only supports
static BOOL regdb_store_keys_internal( const char *key, REGSUBKEY_CTR *ctr )
{
- TDB_DATA kbuf, dbuf;
- char *buffer, *tmpbuf;
+ TDB_DATA dbuf;
+ uint8 *buffer;
int i = 0;
uint32 len, buflen;
BOOL ret = True;
/* allocate some initial memory */
- buffer = SMB_MALLOC(sizeof(pstring));
+ if (!(buffer = (uint8 *)SMB_MALLOC(sizeof(pstring)))) {
+ return False;
+ }
buflen = sizeof(pstring);
len = 0;
len += tdb_pack( buffer+len, buflen-len, "f", regsubkey_ctr_specific_key(ctr, i) );
if ( len > buflen ) {
/* allocate some extra space */
- if ((tmpbuf = SMB_REALLOC( buffer, len*2 )) == NULL) {
+ if ((buffer = (uint8 *)SMB_REALLOC( buffer, len*2 )) == NULL) {
DEBUG(0,("regdb_store_keys: Failed to realloc memory of size [%d]\n", len*2));
ret = False;
goto done;
}
- buffer = tmpbuf;
buflen = len*2;
len = tdb_pack( buffer+len, buflen-len, "f", regsubkey_ctr_specific_key(ctr, i) );
/* finally write out the data */
- kbuf.dptr = keyname;
- kbuf.dsize = strlen(keyname)+1;
dbuf.dptr = buffer;
dbuf.dsize = len;
- if ( tdb_store( tdb_reg, kbuf, dbuf, TDB_REPLACE ) == -1) {
+ if ( tdb_store_bystring( tdb_reg, keyname, dbuf, TDB_REPLACE ) == -1) {
ret = False;
goto done;
}
{
int num_subkeys, i;
pstring path;
- REGSUBKEY_CTR subkeys, old_subkeys;
+ REGSUBKEY_CTR *subkeys = NULL, *old_subkeys = NULL;
char *oldkeyname;
- /* fetch a list of the old subkeys so we can determine if any were deleted */
+ if ( tdb_transaction_start( tdb_reg ) == -1 ) {
+ DEBUG(0, ("regdb_store_keys: tdb_transaction_start failed\n"));
+ return False;
+ }
+
+ /* fetch a list of the old subkeys so we can determine if any were
+ * deleted */
- regsubkey_ctr_init( &old_subkeys );
- regdb_fetch_keys( key, &old_subkeys );
+ if ( !(old_subkeys = TALLOC_ZERO_P( ctr, REGSUBKEY_CTR )) ) {
+ DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
+ goto fail;
+ }
+
+ regdb_fetch_keys( key, old_subkeys );
/* store the subkey list for the parent */
if ( !regdb_store_keys_internal( key, ctr ) ) {
- DEBUG(0,("regdb_store_keys: Failed to store new subkey list for parent [%s}\n", key ));
- return False;
+ DEBUG(0,("regdb_store_keys: Failed to store new subkey list "
+ "for parent [%s]\n", key ));
+ goto fail;
}
/* now delete removed keys */
- num_subkeys = regsubkey_ctr_numkeys( &old_subkeys );
+ num_subkeys = regsubkey_ctr_numkeys( old_subkeys );
for ( i=0; i<num_subkeys; i++ ) {
- oldkeyname = regsubkey_ctr_specific_key( &old_subkeys, i );
- if ( !regsubkey_ctr_key_exists( ctr, oldkeyname ) ) {
- pstr_sprintf( path, "%s%c%s", key, '/', oldkeyname );
- normalize_reg_path( path );
- tdb_delete_bystring( tdb_reg, path );
+ oldkeyname = regsubkey_ctr_specific_key( old_subkeys, i );
+
+ if ( regsubkey_ctr_key_exists( ctr, oldkeyname ) ) {
+ /*
+ * It's still around, don't delete
+ */
+
+ continue;
}
+
+ pstr_sprintf( path, "%s/%s", key, oldkeyname );
+ normalize_reg_path( path );
+ if (tdb_delete_bystring( tdb_reg, path ) == -1) {
+ DEBUG(1, ("Deleting %s failed\n", path));
+ goto fail;
+ }
+
+ pstr_sprintf( path, "%s/%s/%s", VALUE_PREFIX, key,
+ oldkeyname );
+ normalize_reg_path( path );
+
+ /*
+ * Ignore errors here, we might have no values around
+ */
+ tdb_delete_bystring( tdb_reg, path );
}
- regsubkey_ctr_destroy( &old_subkeys );
+ TALLOC_FREE( old_subkeys );
/* now create records for any subkeys that don't already exist */
num_subkeys = regsubkey_ctr_numkeys( ctr );
for ( i=0; i<num_subkeys; i++ ) {
- pstr_sprintf( path, "%s%c%s", key, '/', regsubkey_ctr_specific_key( ctr, i ) );
- regsubkey_ctr_init( &subkeys );
- if ( regdb_fetch_keys( path, &subkeys ) == -1 ) {
+ pstr_sprintf( path, "%s/%s", key,
+ regsubkey_ctr_specific_key( ctr, i ) );
+
+ if ( !(subkeys = TALLOC_ZERO_P( ctr, REGSUBKEY_CTR )) ) {
+ DEBUG(0,("regdb_store_keys: talloc() failure!\n"));
+ goto fail;
+ }
+
+ if ( regdb_fetch_keys( path, subkeys ) == -1 ) {
/* create a record with 0 subkeys */
- if ( !regdb_store_keys_internal( path, &subkeys ) ) {
- DEBUG(0,("regdb_store_keys: Failed to store new record for key [%s}\n", path ));
- regsubkey_ctr_destroy( &subkeys );
- return False;
+ if ( !regdb_store_keys_internal( path, subkeys ) ) {
+ DEBUG(0,("regdb_store_keys: Failed to store "
+ "new record for key [%s]\n", path ));
+ goto fail;
}
}
- regsubkey_ctr_destroy( &subkeys );
+
+ TALLOC_FREE( subkeys );
}
-
+
+ if (tdb_transaction_commit( tdb_reg ) == -1) {
+ DEBUG(0, ("regdb_store_keys: Could not commit transaction\n"));
+ return False;
+ }
+
return True;
+
+ fail:
+ TALLOC_FREE( old_subkeys );
+ TALLOC_FREE( subkeys );
+
+ if (tdb_transaction_cancel( tdb_reg ) == -1) {
+ smb_panic("regdb_store_keys: tdb_transaction_cancel failed\n");
+ }
+
+ return False;
}
pstring path;
uint32 num_items;
TDB_DATA dbuf;
- char *buf;
+ uint8 *buf;
uint32 buflen, len;
int i;
fstring subkeyname;
Unpack a list of registry values frem the TDB
***************************************************************************/
-static int regdb_unpack_values(REGVAL_CTR *values, char *buf, int buflen)
+static int regdb_unpack_values(REGVAL_CTR *values, uint8 *buf, int buflen)
{
int len = 0;
uint32 type;
Pack all values in all printer keys
***************************************************************************/
-static int regdb_pack_values(REGVAL_CTR *values, char *buf, int buflen)
+static int regdb_pack_values(REGVAL_CTR *values, uint8 *buf, int buflen)
{
int len = 0;
int i;
REGISTRY_VALUE *val;
- int num_values = regval_ctr_numvals( values );
+ int num_values;
if ( !values )
return 0;
+ num_values = regval_ctr_numvals( values );
+
/* pack the number of values first */
len += tdb_pack( buf+len, buflen-len, "d", num_values );
return False;
}
- data.dptr = SMB_MALLOC_ARRAY( char, len );
+ data.dptr = SMB_MALLOC_ARRAY( uint8, len );
data.dsize = len;
len = regdb_pack_values( values, data.dptr, data.dsize );
pstr_sprintf( keystr, "%s/%s", VALUE_PREFIX, key );
normalize_reg_path( keystr );
- ret = tdb_store_bystring(tdb_reg, keystr, data, TDB_REPLACE);
+ ret = tdb_trans_store_bystring(tdb_reg, keystr, data, TDB_REPLACE);
SAFE_FREE( data.dptr );
return ret != -1 ;
}
+void normalize_dbkey(char *key)
+{
+ size_t len = strlen(key);
+ string_sub(key, "\\", "/", len+1);
+ strupper_m(key);
+}
+
+static WERROR regdb_get_secdesc(TALLOC_CTX *mem_ctx, const char *key,
+ struct security_descriptor **psecdesc)
+{
+ char *tdbkey;
+ TDB_DATA data;
+ NTSTATUS status;
+
+ DEBUG(10, ("regdb_get_secdesc: Getting secdesc of key [%s]\n", key));
+
+ if (asprintf(&tdbkey, "%s/%s", SECDESC_PREFIX, key) == -1) {
+ return WERR_NOMEM;
+ }
+ normalize_dbkey(tdbkey);
+
+ data = tdb_fetch_bystring(tdb_reg, tdbkey);
+ SAFE_FREE(tdbkey);
+
+ if (data.dptr == NULL) {
+ return WERR_BADFILE;
+ }
+
+ status = unmarshall_sec_desc(mem_ctx, (uint8 *)data.dptr, data.dsize,
+ psecdesc);
+
+ SAFE_FREE(data.dptr);
+
+ if (NT_STATUS_EQUAL(status, NT_STATUS_NO_MEMORY)) {
+ return WERR_NOMEM;
+ }
+
+ if (!NT_STATUS_IS_OK(status)) {
+ return WERR_REG_CORRUPT;
+ }
+
+ return WERR_OK;
+}
+
+static WERROR regdb_set_secdesc(const char *key,
+ struct security_descriptor *secdesc)
+{
+ prs_struct ps;
+ TALLOC_CTX *mem_ctx;
+ char *tdbkey;
+ WERROR err = WERR_NOMEM;
+ TDB_DATA tdbdata;
+
+ if (!(mem_ctx = talloc_init("regdb_set_secdesc"))) {
+ return WERR_NOMEM;
+ }
+
+ ZERO_STRUCT(ps);
+
+ if (!(tdbkey = talloc_asprintf(mem_ctx, "%s/%s", SECDESC_PREFIX,
+ key))) {
+ goto done;
+ }
+ normalize_dbkey(tdbkey);
+
+ err = ntstatus_to_werror(marshall_sec_desc(mem_ctx, secdesc,
+ &tdbdata.dptr,
+ &tdbdata.dsize));
+ if (!W_ERROR_IS_OK(err)) {
+ goto done;
+ }
+
+ if (tdb_trans_store_bystring(tdb_reg, tdbkey, tdbdata, 0) == -1) {
+ err = ntstatus_to_werror(map_nt_error_from_unix(errno));
+ goto done;
+ }
+
+ done:
+ prs_mem_free(&ps);
+ TALLOC_FREE(mem_ctx);
+ return err;
+}
/*
* Table of function pointers for default access
regdb_fetch_values,
regdb_store_keys,
regdb_store_values,
- NULL
+ NULL,
+ regdb_get_secdesc,
+ regdb_set_secdesc
};
-
-
git.samba.org / sfrench / samba-autobuild / .git / blobdiff