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server: Use the link_name operation to create named objects. 

Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2016-02-04 21:08:02 +09:00
parent f55db7882d
commit b21a324070
16 changed files with 161 additions and 119 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
dlls/ntdll/tests/om.c
View File

@ -1389,7 +1389,6 @@ static void test_query_object(void)
expected_len = sizeof(UNICODE_STRING) + str->Length + sizeof(WCHAR);
ok( len == expected_len || broken(len == expected_len - sizeof(WCHAR)), /* NT4 */
"unexpected len %u\n", len );
todo_wine
ok( len > sizeof(UNICODE_STRING) + sizeof("\\test_mailslot") * sizeof(WCHAR),
"name too short %s\n", wine_dbgstr_w(str->Buffer) );
trace( "got %s len %u\n", wine_dbgstr_w(str->Buffer), len );

4
server/completion.c
View File

@ -72,8 +72,8 @@ static const struct object_ops completion_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
completion_destroy /* destroy */

4
server/device.c
View File

@ -155,8 +155,8 @@ static const struct object_ops device_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
device_open_file, /* open_file */
no_close_handle, /* close_handle */
device_destroy /* destroy */

32
server/directory.c
View File

@ -64,8 +64,8 @@ static const struct object_ops object_type_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
no_destroy /* destroy */
@ -99,8 +99,8 @@ static const struct object_ops directory_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
directory_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
directory_destroy /* destroy */
@ -177,6 +177,20 @@ static struct object *directory_lookup_name( struct object *obj, struct unicode_
return NULL;
}
int directory_link_name( struct object *obj, struct object_name *name, struct object *parent )
{
struct directory *dir = (struct directory *)parent;
if (parent->ops != &directory_ops)
{
set_error( STATUS_OBJECT_TYPE_MISMATCH );
return 0;
}
namespace_add( dir->entries, name );
name->parent = grab_object( parent );
return 1;
}
static void directory_destroy( struct object *obj )
{
struct directory *dir = (struct directory *)obj;
@ -309,15 +323,7 @@ void *create_named_object_dir( struct directory *root, const struct unicode_str
return obj;
}
/* ATM we can't insert objects into anything else but directories */
if (obj->ops != &directory_ops)
set_error( STATUS_OBJECT_TYPE_MISMATCH );
else
{
struct directory *dir = (struct directory *)obj;
if ((new_obj = create_object( dir->entries, ops, &new_name, &dir->obj )))
clear_error();
}
if ((new_obj = create_object( obj, ops, &new_name ))) clear_error();
release_object( obj );
return new_obj;

8
server/event.c
View File

@ -65,8 +65,8 @@ static const struct object_ops event_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
no_destroy /* destroy */
@ -98,8 +98,8 @@ static const struct object_ops keyed_event_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
no_destroy /* destroy */

36
server/mailslot.c
View File

@ -66,6 +66,7 @@ struct mailslot
static void mailslot_dump( struct object*, int );
static struct fd *mailslot_get_fd( struct object * );
static unsigned int mailslot_map_access( struct object *obj, unsigned int access );
static int mailslot_link_name( struct object *obj, struct object_name *name, struct object *parent );
static struct object *mailslot_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options );
static void mailslot_destroy( struct object * );
@ -85,8 +86,8 @@ static const struct object_ops mailslot_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
mailslot_link_name, /* link_name */
default_unlink_name, /* unlink_name */
mailslot_open_file, /* open_file */
fd_close_handle, /* close_handle */
mailslot_destroy /* destroy */
@ -196,8 +197,8 @@ static const struct object_ops mailslot_device_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
mailslot_device_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
mailslot_device_open_file, /* open_file */
fd_close_handle, /* close_handle */
mailslot_device_destroy /* destroy */
@ -260,6 +261,20 @@ static unsigned int mailslot_map_access( struct object *obj, unsigned int access
return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
}
static int mailslot_link_name( struct object *obj, struct object_name *name, struct object *parent )
{
struct mailslot_device *dev = (struct mailslot_device *)parent;
if (parent->ops != &mailslot_device_ops)
{
set_error( STATUS_OBJECT_NAME_INVALID );
return 0;
}
namespace_add( dev->mailslots, name );
name->parent = grab_object( parent );
return 1;
}
static struct object *mailslot_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options )
{
@ -405,7 +420,6 @@ static struct mailslot *create_mailslot( struct directory *root,
{
struct object *obj;
struct unicode_str new_name;
struct mailslot_device *dev;
struct mailslot *mailslot;
int fds[2];
@ -434,16 +448,8 @@ static struct mailslot *create_mailslot( struct directory *root,
return NULL;
}
if (obj->ops != &mailslot_device_ops)
{
set_error( STATUS_OBJECT_NAME_INVALID );
release_object( obj );
return NULL;
}
dev = (struct mailslot_device *)obj;
mailslot = create_object( dev->mailslots, &mailslot_ops, &new_name, NULL );
release_object( dev );
mailslot = create_object( obj, &mailslot_ops, &new_name );
release_object( obj );
init:
if (!mailslot) return NULL;

4
server/mapping.c
View File

@ -91,8 +91,8 @@ static const struct object_ops mapping_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
fd_close_handle, /* close_handle */
mapping_destroy /* destroy */

4
server/mutex.c
View File

@ -68,8 +68,8 @@ static const struct object_ops mutex_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
mutex_destroy /* destroy */

33
server/named_pipe.c
View File

@ -112,6 +112,7 @@ struct named_pipe_device
static void named_pipe_dump( struct object *obj, int verbose );
static unsigned int named_pipe_map_access( struct object *obj, unsigned int access );
static int named_pipe_link_name( struct object *obj, struct object_name *name, struct object *parent );
static struct object *named_pipe_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options );
static void named_pipe_destroy( struct object *obj );
@ -131,8 +132,8 @@ static const struct object_ops named_pipe_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
named_pipe_link_name, /* link_name */
default_unlink_name, /* unlink_name */
named_pipe_open_file, /* open_file */
no_close_handle, /* close_handle */
named_pipe_destroy /* destroy */
@ -254,8 +255,8 @@ static const struct object_ops named_pipe_device_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
named_pipe_device_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
named_pipe_device_open_file, /* open_file */
fd_close_handle, /* close_handle */
named_pipe_device_destroy /* destroy */
@ -701,14 +702,8 @@ static struct named_pipe *create_named_pipe( struct directory *root, const struc
return (struct named_pipe *)obj;
}
if (obj->ops != &named_pipe_device_ops)
set_error( STATUS_OBJECT_NAME_INVALID );
else
{
struct named_pipe_device *dev = (struct named_pipe_device *)obj;
if ((pipe = create_object( dev->pipes, &named_pipe_ops, &new_name, NULL )))
clear_error();
}
if ((pipe = create_object( obj, &named_pipe_ops, &new_name )))
clear_error();
release_object( obj );
return pipe;
@ -786,6 +781,20 @@ static struct pipe_server *find_available_server( struct named_pipe *pipe )
return NULL;
}
static int named_pipe_link_name( struct object *obj, struct object_name *name, struct object *parent )
{
struct named_pipe_device *dev = (struct named_pipe_device *)parent;
if (parent->ops != &named_pipe_device_ops)
{
set_error( STATUS_OBJECT_NAME_INVALID );
return 0;
}
namespace_add( dev->pipes, name );
name->parent = grab_object( parent );
return 1;
}
static struct object *named_pipe_open_file( struct object *obj, unsigned int access,
unsigned int sharing, unsigned int options )
{

84
server/object.c
View File

@ -40,15 +40,6 @@
#include "security.h"
struct object_name
{
struct list entry; /* entry in the hash list */
struct object *obj; /* object owning this name */
struct object *parent; /* parent object */
data_size_t len; /* name length in bytes */
WCHAR name[1];
};
struct namespace
{
unsigned int hash_size; /* size of hash table */
@ -130,6 +121,13 @@ static int get_name_hash( const struct namespace *namespace, const WCHAR *name,
return hash % namespace->hash_size;
}
void namespace_add( struct namespace *namespace, struct object_name *ptr )
{
int hash = get_name_hash( namespace, ptr->name, ptr->len );
list_add_head( &namespace->names[hash], &ptr->entry );
}
/* allocate a name for an object */
static struct object_name *alloc_name( const struct unicode_str *name )
{
@ -144,26 +142,6 @@ static struct object_name *alloc_name( const struct unicode_str *name )
return ptr;
}
/* free the name of an object */
static void free_name( struct object *obj )
{
struct object_name *ptr = obj->name;
list_remove( &ptr->entry );
if (ptr->parent) release_object( ptr->parent );
free( ptr );
}
/* set the name of an existing object */
static void set_object_name( struct namespace *namespace,
struct object *obj, struct object_name *ptr )
{
int hash = get_name_hash( namespace, ptr->name, ptr->len );
list_add_head( &namespace->names[hash], &ptr->entry );
ptr->obj = obj;
obj->name = ptr;
}
/* get the name of an existing object */
const WCHAR *get_object_name( struct object *obj, data_size_t *len )
{
@ -222,8 +200,18 @@ void *alloc_object( const struct object_ops *ops )
return NULL;
}
void *create_object( struct namespace *namespace, const struct object_ops *ops,
const struct unicode_str *name, struct object *parent )
/* free an object once it has been destroyed */
void free_object( struct object *obj )
{
free( obj->sd );
#ifdef DEBUG_OBJECTS
list_remove( &obj->obj_list );
memset( obj, 0xaa, obj->ops->size );
#endif
free( obj );
}
void *create_object( struct object *parent, const struct object_ops *ops, const struct unicode_str *name )
{
struct object *obj;
struct object_name *name_ptr;
@ -231,15 +219,20 @@ void *create_object( struct namespace *namespace, const struct object_ops *ops,
if (!(name_ptr = alloc_name( name ))) return NULL;
if ((obj = alloc_object( ops )))
{
set_object_name( namespace, obj, name_ptr );
if (parent) name_ptr->parent = grab_object( parent );
if (!obj->ops->link_name( obj, name_ptr, parent ))
{
free_object( obj );
return NULL;
}
name_ptr->obj = obj;
obj->name = name_ptr;
}
else
free( name_ptr );
return obj;
}
void *create_named_object( struct namespace *namespace, const struct object_ops *ops,
void *create_named_object( struct object *parent, struct namespace *namespace, const struct object_ops *ops,
const struct unicode_str *name, unsigned int attributes )
{
struct object *obj;
@ -265,7 +258,7 @@ void *create_named_object( struct namespace *namespace, const struct object_ops
}
return obj;
}
if ((obj = create_object( namespace, ops, name, NULL ))) clear_error();
if ((obj = create_object( parent, ops, name ))) clear_error();
return obj;
}
@ -292,8 +285,13 @@ void dump_object_name( struct object *obj )
/* unlink a named object from its namespace, without freeing the object itself */
void unlink_named_object( struct object *obj )
{
if (obj->name) free_name( obj );
struct object_name *name_ptr = obj->name;
if (!name_ptr) return;
obj->name = NULL;
obj->ops->unlink_name( obj, name_ptr );
if (name_ptr->parent) release_object( name_ptr->parent );
free( name_ptr );
}
/* mark an object as being stored statically, i.e. only released at shutdown */
@ -324,14 +322,9 @@ void release_object( void *ptr )
assert( !obj->handle_count );
/* if the refcount is 0, nobody can be in the wait queue */
assert( list_empty( &obj->wait_queue ));
unlink_named_object( obj );
obj->ops->destroy( obj );
if (obj->name) free_name( obj );
free( obj->sd );
#ifdef DEBUG_OBJECTS
list_remove( &obj->obj_list );
memset( obj, 0xaa, obj->ops->size );
#endif
free( obj );
free_object( obj );
}
}
@ -557,6 +550,11 @@ int no_link_name( struct object *obj, struct object_name *name, struct object *p
return 0;
}
void default_unlink_name( struct object *obj, struct object_name *name )
{
list_remove( &name->entry );
}
struct object *no_open_file( struct object *obj, unsigned int access, unsigned int sharing,
unsigned int options )
{

18
server/object.h
View File

@ -109,6 +109,15 @@ struct object
#endif
};
struct object_name
{
struct list entry; /* entry in the hash list */
struct object *obj; /* object owning this name */
struct object *parent; /* parent object */
data_size_t len; /* name length in bytes */
WCHAR name[1];
};
struct wait_queue_entry
{
struct list entry;
@ -119,12 +128,13 @@ struct wait_queue_entry
extern void *mem_alloc( size_t size ); /* malloc wrapper */
extern void *memdup( const void *data, size_t len );
extern void *alloc_object( const struct object_ops *ops );
extern void namespace_add( struct namespace *namespace, struct object_name *ptr );
extern const WCHAR *get_object_name( struct object *obj, data_size_t *len );
extern WCHAR *get_object_full_name( struct object *obj, data_size_t *ret_len );
extern void dump_object_name( struct object *obj );
extern void *create_object( struct namespace *namespace, const struct object_ops *ops,
const struct unicode_str *name, struct object *parent );
extern void *create_named_object( struct namespace *namespace, const struct object_ops *ops,
extern void *create_object( struct object *parent, const struct object_ops *ops,
const struct unicode_str *name );
extern void *create_named_object( struct object *parent, struct namespace *namespace, const struct object_ops *ops,
const struct unicode_str *name, unsigned int attributes );
extern void unlink_named_object( struct object *obj );
extern void make_object_static( struct object *obj );
@ -148,6 +158,7 @@ extern int set_sd_defaults_from_token( struct object *obj, const struct security
unsigned int set_info, struct token *token );
extern struct object *no_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attributes );
extern int no_link_name( struct object *obj, struct object_name *name, struct object *parent );
extern void default_unlink_name( struct object *obj, struct object_name *name );
extern struct object *no_open_file( struct object *obj, unsigned int access, unsigned int sharing,
unsigned int options );
extern int no_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
@ -222,6 +233,7 @@ extern void *create_named_object_dir( struct directory *root, const struct unico
extern void *open_object_dir( struct directory *root, const struct unicode_str *name,
unsigned int attr, const struct object_ops *ops );
extern struct object_type *get_object_type( const struct unicode_str *name );
extern int directory_link_name( struct object *obj, struct object_name *name, struct object *parent );
extern void init_directories(void);
/* symbolic link functions */

4
server/process.c
View File

@ -174,8 +174,8 @@ static const struct object_ops job_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
job_close_handle, /* close_handle */
job_destroy /* destroy */

4
server/semaphore.c
View File

@ -65,8 +65,8 @@ static const struct object_ops semaphore_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
no_destroy /* destroy */

4
server/symlink.c
View File

@ -67,8 +67,8 @@ static const struct object_ops symlink_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
symlink_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
symlink_destroy /* destroy */

4
server/timer.c
View File

@ -72,8 +72,8 @@ static const struct object_ops timer_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
no_close_handle, /* close_handle */
timer_destroy /* destroy */

36
server/winstation.c
View File

@ -50,6 +50,7 @@ static void winstation_destroy( struct object *obj );
static unsigned int winstation_map_access( struct object *obj, unsigned int access );
static void desktop_dump( struct object *obj, int verbose );
static struct object_type *desktop_get_type( struct object *obj );
static int desktop_link_name( struct object *obj, struct object_name *name, struct object *parent );
static int desktop_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
static void desktop_destroy( struct object *obj );
static unsigned int desktop_map_access( struct object *obj, unsigned int access );
@ -69,8 +70,8 @@ static const struct object_ops winstation_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
directory_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
winstation_close_handle, /* close_handle */
winstation_destroy /* destroy */
@ -92,8 +93,8 @@ static const struct object_ops desktop_ops =
default_get_sd, /* get_sd */
default_set_sd, /* set_sd */
no_lookup_name, /* lookup_name */
no_link_name, /* link_name */
NULL, /* unlink_name */
desktop_link_name, /* link_name */
default_unlink_name, /* unlink_name */
no_open_file, /* open_file */
desktop_close_handle, /* close_handle */
desktop_destroy /* destroy */
@ -194,13 +195,7 @@ static struct desktop *create_desktop( const struct unicode_str *name, unsigned
{
struct desktop *desktop;
if (memchrW( name->str, '\\', name->len / sizeof(WCHAR) )) /* no backslash allowed in name */
{
set_error( STATUS_OBJECT_PATH_SYNTAX_BAD );
return NULL;
}
if ((desktop = create_named_object( winstation->desktop_names, &desktop_ops, name, attr )))
if ((desktop = create_named_object( &winstation->obj, winstation->desktop_names, &desktop_ops, name, attr )))
{
if (get_error() != STATUS_OBJECT_NAME_EXISTS)
{
@ -238,6 +233,24 @@ static struct object_type *desktop_get_type( struct object *obj )
return get_object_type( &str );
}
static int desktop_link_name( struct object *obj, struct object_name *name, struct object *parent )
{
struct winstation *winstation = (struct winstation *)parent;
if (parent->ops != &winstation_ops)
{
set_error( STATUS_OBJECT_TYPE_MISMATCH );
return 0;
}
if (memchrW( name->name, '\\', name->len / sizeof(WCHAR) )) /* no backslash allowed in name */
{
set_error( STATUS_OBJECT_PATH_SYNTAX_BAD );
return 0;
}
namespace_add( winstation->desktop_names, name );
return 1;
}
static int desktop_close_handle( struct object *obj, struct process *process, obj_handle_t handle )
{
struct thread *thread;
@ -259,7 +272,6 @@ static void desktop_destroy( struct object *obj )
if (desktop->global_hooks) release_object( desktop->global_hooks );
if (desktop->close_timeout) remove_timeout_user( desktop->close_timeout );
list_remove( &desktop->entry );
unlink_named_object( obj );
release_object( desktop->winstation );
}