*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "config.h"
#include <stdlib.h>
#include <stdarg.h>
+#include "ntstatus.h"
+#define WIN32_NO_STATUS
#include "windef.h"
#include "winternl.h"
#include "handle.h"
#include "thread.h"
#include "request.h"
+#include "security.h"
struct semaphore
{
};
static void semaphore_dump( struct object *obj, int verbose );
+static struct object_type *semaphore_get_type( struct object *obj );
static int semaphore_signaled( struct object *obj, struct thread *thread );
static int semaphore_satisfied( struct object *obj, struct thread *thread );
+static unsigned int semaphore_map_access( struct object *obj, unsigned int access );
static int semaphore_signal( struct object *obj, unsigned int access );
static const struct object_ops semaphore_ops =
{
sizeof(struct semaphore), /* size */
semaphore_dump, /* dump */
+ semaphore_get_type, /* get_type */
add_queue, /* add_queue */
remove_queue, /* remove_queue */
semaphore_signaled, /* signaled */
semaphore_satisfied, /* satisfied */
semaphore_signal, /* signal */
no_get_fd, /* get_fd */
+ semaphore_map_access, /* map_access */
+ default_get_sd, /* get_sd */
+ default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
+ no_open_file, /* open_file */
no_close_handle, /* close_handle */
no_destroy /* destroy */
};
-static struct semaphore *create_semaphore( const struct unicode_str *name, unsigned int attr,
- unsigned int initial, unsigned int max )
+static struct semaphore *create_semaphore( struct directory *root, const struct unicode_str *name,
+ unsigned int attr, unsigned int initial, unsigned int max,
+ const struct security_descriptor *sd )
{
struct semaphore *sem;
set_error( STATUS_INVALID_PARAMETER );
return NULL;
}
- if ((sem = create_named_object( sync_namespace, &semaphore_ops, name, attr )))
+ if ((sem = create_named_object_dir( root, name, attr, &semaphore_ops )))
{
if (get_error() != STATUS_OBJECT_NAME_EXISTS)
{
/* initialize it if it didn't already exist */
sem->count = initial;
sem->max = max;
+ if (sd) default_set_sd( &sem->obj, sd, OWNER_SECURITY_INFORMATION|
+ GROUP_SECURITY_INFORMATION|
+ DACL_SECURITY_INFORMATION|
+ SACL_SECURITY_INFORMATION );
}
}
return sem;
fputc( '\n', stderr );
}
+static struct object_type *semaphore_get_type( struct object *obj )
+{
+ static const WCHAR name[] = {'S','e','m','a','p','h','o','r','e'};
+ static const struct unicode_str str = { name, sizeof(name) };
+ return get_object_type( &str );
+}
+
static int semaphore_signaled( struct object *obj, struct thread *thread )
{
struct semaphore *sem = (struct semaphore *)obj;
return 0; /* not abandoned */
}
+static unsigned int semaphore_map_access( struct object *obj, unsigned int access )
+{
+ if (access & GENERIC_READ) access |= STANDARD_RIGHTS_READ | SYNCHRONIZE;
+ if (access & GENERIC_WRITE) access |= STANDARD_RIGHTS_WRITE | SEMAPHORE_MODIFY_STATE;
+ if (access & GENERIC_EXECUTE) access |= STANDARD_RIGHTS_EXECUTE;
+ if (access & GENERIC_ALL) access |= STANDARD_RIGHTS_ALL | SEMAPHORE_ALL_ACCESS;
+ return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
+}
+
static int semaphore_signal( struct object *obj, unsigned int access )
{
struct semaphore *sem = (struct semaphore *)obj;
{
struct semaphore *sem;
struct unicode_str name;
+ struct directory *root = NULL;
+ const struct object_attributes *objattr = get_req_data();
+ const struct security_descriptor *sd;
reply->handle = 0;
- get_req_unicode_str( &name );
- if ((sem = create_semaphore( &name, req->attributes, req->initial, req->max )))
+
+ if (!objattr_is_valid( objattr, get_req_data_size() ))
+ return;
+
+ sd = objattr->sd_len ? (const struct security_descriptor *)(objattr + 1) : NULL;
+ objattr_get_name( objattr, &name );
+
+ if (objattr->rootdir && !(root = get_directory_obj( current->process, objattr->rootdir, 0 )))
+ return;
+
+ if ((sem = create_semaphore( root, &name, req->attributes, req->initial, req->max, sd )))
{
- reply->handle = alloc_handle( current->process, sem, req->access,
- req->attributes & OBJ_INHERIT );
+ if (get_error() == STATUS_OBJECT_NAME_EXISTS)
+ reply->handle = alloc_handle( current->process, sem, req->access, req->attributes );
+ else
+ reply->handle = alloc_handle_no_access_check( current->process, sem, req->access, req->attributes );
release_object( sem );
}
+
+ if (root) release_object( root );
}
/* open a handle to a semaphore */
DECL_HANDLER(open_semaphore)
{
struct unicode_str name;
+ struct directory *root = NULL;
+ struct semaphore *sem;
get_req_unicode_str( &name );
- reply->handle = open_object( sync_namespace, &name, &semaphore_ops, req->access, req->attributes );
+ if (req->rootdir && !(root = get_directory_obj( current->process, req->rootdir, 0 )))
+ return;
+
+ if ((sem = open_object_dir( root, &name, req->attributes, &semaphore_ops )))
+ {
+ reply->handle = alloc_handle( current->process, &sem->obj, req->access, req->attributes );
+ release_object( sem );
+ }
+
+ if (root) release_object( root );
}
/* release a semaphore */