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![Zebediah Figura](/assets/img/avatar_default.png)
Signed-off-by: Zebediah Figura <zfigura@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
637 lines
27 KiB
C
637 lines
27 KiB
C
/*
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* Server-side directory object management
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*
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* Copyright (C) 2005 Vitaliy Margolen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#include "config.h"
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#include <assert.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/types.h>
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#include "ntstatus.h"
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#define WIN32_NO_STATUS
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#include "winternl.h"
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#include "ddk/wdm.h"
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#include "handle.h"
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#include "request.h"
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#include "process.h"
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#include "file.h"
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#include "unicode.h"
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#define HASH_SIZE 7 /* default hash size */
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static const WCHAR objtype_name[] = {'T','y','p','e'};
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struct type_descr objtype_type =
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{
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{ objtype_name, sizeof(objtype_name) }, /* name */
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STANDARD_RIGHTS_REQUIRED | SYNCHRONIZE | 0x1, /* valid_access */
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{ /* mapping */
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STANDARD_RIGHTS_READ,
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STANDARD_RIGHTS_WRITE,
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STANDARD_RIGHTS_EXECUTE,
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STANDARD_RIGHTS_REQUIRED | 0x1
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},
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};
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struct object_type
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{
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struct object obj; /* object header */
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};
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static void object_type_dump( struct object *obj, int verbose );
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static const struct object_ops object_type_ops =
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{
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sizeof(struct object_type), /* size */
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&objtype_type, /* type */
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object_type_dump, /* dump */
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no_add_queue, /* add_queue */
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NULL, /* remove_queue */
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NULL, /* signaled */
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NULL, /* satisfied */
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no_signal, /* signal */
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no_get_fd, /* get_fd */
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default_map_access, /* map_access */
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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default_get_full_name, /* get_full_name */
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no_lookup_name, /* lookup_name */
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directory_link_name, /* link_name */
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default_unlink_name, /* unlink_name */
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no_open_file, /* open_file */
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no_kernel_obj_list, /* get_kernel_obj_list */
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no_close_handle, /* close_handle */
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no_destroy /* destroy */
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};
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static const WCHAR directory_name[] = {'D','i','r','e','c','t','o','r','y'};
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struct type_descr directory_type =
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{
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{ directory_name, sizeof(directory_name) }, /* name */
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DIRECTORY_ALL_ACCESS, /* valid_access */
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{ /* mapping */
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STANDARD_RIGHTS_READ | DIRECTORY_TRAVERSE | DIRECTORY_QUERY,
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STANDARD_RIGHTS_WRITE | DIRECTORY_CREATE_SUBDIRECTORY | DIRECTORY_CREATE_OBJECT,
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STANDARD_RIGHTS_EXECUTE | DIRECTORY_TRAVERSE | DIRECTORY_QUERY,
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DIRECTORY_ALL_ACCESS
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},
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};
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struct directory
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{
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struct object obj; /* object header */
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struct namespace *entries; /* directory's name space */
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};
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static void directory_dump( struct object *obj, int verbose );
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static struct object *directory_lookup_name( struct object *obj, struct unicode_str *name,
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unsigned int attr, struct object *root );
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static void directory_destroy( struct object *obj );
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static const struct object_ops directory_ops =
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{
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sizeof(struct directory), /* size */
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&directory_type, /* type */
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directory_dump, /* dump */
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no_add_queue, /* add_queue */
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NULL, /* remove_queue */
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NULL, /* signaled */
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NULL, /* satisfied */
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no_signal, /* signal */
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no_get_fd, /* get_fd */
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default_map_access, /* map_access */
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default_get_sd, /* get_sd */
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default_set_sd, /* set_sd */
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default_get_full_name, /* get_full_name */
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directory_lookup_name, /* lookup_name */
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directory_link_name, /* link_name */
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default_unlink_name, /* unlink_name */
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no_open_file, /* open_file */
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no_kernel_obj_list, /* get_kernel_obj_list */
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no_close_handle, /* close_handle */
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directory_destroy /* destroy */
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};
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static struct directory *root_directory;
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static struct directory *dir_objtype;
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static struct type_descr *types[] =
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{
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&objtype_type,
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&directory_type,
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&symlink_type,
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&token_type,
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&job_type,
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&process_type,
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&thread_type,
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&debug_obj_type,
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&event_type,
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&mutex_type,
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&semaphore_type,
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&timer_type,
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&keyed_event_type,
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&winstation_type,
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&desktop_type,
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&device_type,
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&completion_type,
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&file_type,
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&mapping_type,
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&key_type,
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};
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static void object_type_dump( struct object *obj, int verbose )
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{
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fputs( "Object type\n", stderr );
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}
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static struct object_type *create_object_type( struct object *root, unsigned int index,
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unsigned int attr, const struct security_descriptor *sd )
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{
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struct type_descr *descr = types[index];
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struct object_type *type;
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if ((type = create_named_object( root, &object_type_ops, &descr->name, attr, sd )))
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{
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descr->index = index;
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}
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return type;
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}
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static void directory_dump( struct object *obj, int verbose )
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{
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fputs( "Directory\n", stderr );
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}
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static struct object *directory_lookup_name( struct object *obj, struct unicode_str *name,
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unsigned int attr, struct object *root )
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{
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struct directory *dir = (struct directory *)obj;
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struct object *found;
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struct unicode_str tmp;
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assert( obj->ops == &directory_ops );
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if (!name) return NULL; /* open the directory itself */
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tmp.str = name->str;
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tmp.len = get_path_element( name->str, name->len );
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if ((found = find_object( dir->entries, &tmp, attr )))
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{
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/* Skip trailing \\ and move to the next element */
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if (tmp.len < name->len)
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{
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tmp.len += sizeof(WCHAR);
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name->str += tmp.len / sizeof(WCHAR);
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name->len -= tmp.len;
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}
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else
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{
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name->str = NULL;
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name->len = 0;
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}
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return found;
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}
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if (name->str) /* not the last element */
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{
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if (tmp.len == 0) /* Double backslash */
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set_error( STATUS_OBJECT_NAME_INVALID );
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else if (tmp.len < name->len) /* Path still has backslashes */
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set_error( STATUS_OBJECT_PATH_NOT_FOUND );
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}
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return NULL;
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}
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int directory_link_name( struct object *obj, struct object_name *name, struct object *parent )
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{
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struct directory *dir = (struct directory *)parent;
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if (parent->ops != &directory_ops)
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{
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set_error( STATUS_OBJECT_TYPE_MISMATCH );
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return 0;
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}
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namespace_add( dir->entries, name );
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name->parent = grab_object( parent );
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return 1;
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}
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static void directory_destroy( struct object *obj )
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{
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struct directory *dir = (struct directory *)obj;
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assert( obj->ops == &directory_ops );
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free( dir->entries );
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}
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static struct directory *create_directory( struct object *root, const struct unicode_str *name,
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unsigned int attr, unsigned int hash_size,
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const struct security_descriptor *sd )
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{
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struct directory *dir;
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if ((dir = create_named_object( root, &directory_ops, name, attr, sd )) &&
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get_error() != STATUS_OBJECT_NAME_EXISTS)
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{
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if (!(dir->entries = create_namespace( hash_size )))
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{
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release_object( dir );
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return NULL;
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}
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}
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return dir;
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}
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struct object *get_root_directory(void)
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{
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return grab_object( root_directory );
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}
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/* return a directory object for creating/opening some object; no access rights are required */
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struct object *get_directory_obj( struct process *process, obj_handle_t handle )
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{
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return get_handle_obj( process, handle, 0, &directory_ops );
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}
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/* Global initialization */
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static void create_session( unsigned int id )
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{
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/* directories */
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static const WCHAR dir_sessionsW[] = {'S','e','s','s','i','o','n','s'};
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static const WCHAR dir_bnolinksW[] = {'B','N','O','L','I','N','K','S'};
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static const WCHAR dir_bnoW[] = {'B','a','s','e','N','a','m','e','d','O','b','j','e','c','t','s'};
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static const WCHAR dir_dosdevicesW[] = {'D','o','s','D','e','v','i','c','e','s'};
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static const WCHAR dir_windowsW[] = {'W','i','n','d','o','w','s'};
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static const WCHAR dir_winstationsW[] = {'W','i','n','d','o','w','S','t','a','t','i','o','n','s'};
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static const struct unicode_str dir_sessions_str = {dir_sessionsW, sizeof(dir_sessionsW)};
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static const struct unicode_str dir_bnolinks_str = {dir_bnolinksW, sizeof(dir_bnolinksW)};
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static const struct unicode_str dir_bno_str = {dir_bnoW, sizeof(dir_bnoW)};
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static const struct unicode_str dir_dosdevices_str = {dir_dosdevicesW, sizeof(dir_dosdevicesW)};
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static const struct unicode_str dir_windows_str = {dir_windowsW, sizeof(dir_windowsW)};
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static const struct unicode_str dir_winstations_str = {dir_winstationsW, sizeof(dir_winstationsW)};
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/* symlinks */
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static const WCHAR link_globalW[] = {'G','l','o','b','a','l'};
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static const WCHAR link_localW[] = {'L','o','c','a','l'};
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static const WCHAR link_sessionW[] = {'S','e','s','s','i','o','n'};
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static const struct unicode_str link_global_str = {link_globalW, sizeof(link_globalW)};
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static const struct unicode_str link_local_str = {link_localW, sizeof(link_localW)};
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static const struct unicode_str link_session_str = {link_sessionW, sizeof(link_sessionW)};
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static struct directory *dir_bno_global, *dir_sessions, *dir_bnolinks;
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struct directory *dir_id, *dir_bno, *dir_dosdevices, *dir_windows, *dir_winstation;
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struct object *link_global, *link_local, *link_session, *link_bno, *link_windows;
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struct unicode_str id_str;
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char id_strA[10];
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WCHAR *id_strW;
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if (!id)
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{
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dir_bno_global = create_directory( &root_directory->obj, &dir_bno_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_sessions = create_directory( &root_directory->obj, &dir_sessions_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_bnolinks = create_directory( &dir_sessions->obj, &dir_bnolinks_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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release_object( dir_bno_global );
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release_object( dir_bnolinks );
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release_object( dir_sessions );
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}
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sprintf( id_strA, "%u", id );
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id_strW = ascii_to_unicode_str( id_strA, &id_str );
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dir_id = create_directory( &dir_sessions->obj, &id_str, 0, HASH_SIZE, NULL );
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dir_dosdevices = create_directory( &dir_id->obj, &dir_dosdevices_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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/* for session 0, directories are created under the root */
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if (!id)
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{
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dir_bno = (struct directory *)grab_object( dir_bno_global );
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dir_windows = create_directory( &root_directory->obj, &dir_windows_str, 0, HASH_SIZE, NULL );
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link_bno = create_obj_symlink( &dir_id->obj, &dir_bno_str, OBJ_PERMANENT, &dir_bno->obj, NULL );
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link_windows = create_obj_symlink( &dir_id->obj, &dir_windows_str, OBJ_PERMANENT, &dir_windows->obj, NULL );
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release_object( link_bno );
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release_object( link_windows );
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}
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else
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{
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/* use a larger hash table for this one since it can contain a lot of objects */
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dir_bno = create_directory( &dir_id->obj, &dir_bno_str, 0, 37, NULL );
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dir_windows = create_directory( &dir_id->obj, &dir_windows_str, 0, HASH_SIZE, NULL );
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}
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dir_winstation = create_directory( &dir_windows->obj, &dir_winstations_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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link_global = create_obj_symlink( &dir_bno->obj, &link_global_str, OBJ_PERMANENT, &dir_bno_global->obj, NULL );
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link_local = create_obj_symlink( &dir_bno->obj, &link_local_str, OBJ_PERMANENT, &dir_bno->obj, NULL );
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link_session = create_obj_symlink( &dir_bno->obj, &link_session_str, OBJ_PERMANENT, &dir_bnolinks->obj, NULL );
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link_bno = create_obj_symlink( &dir_bnolinks->obj, &id_str, OBJ_PERMANENT, &dir_bno->obj, NULL );
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release_object( link_global );
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release_object( link_local );
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release_object( link_session );
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release_object( link_bno );
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release_object( dir_dosdevices );
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release_object( dir_winstation );
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release_object( dir_windows );
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release_object( dir_bno );
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release_object( dir_id );
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free( id_strW );
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}
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void init_directories( struct fd *intl_fd )
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{
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/* Directories */
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static const WCHAR dir_globalW[] = {'?','?'};
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static const WCHAR dir_driverW[] = {'D','r','i','v','e','r'};
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static const WCHAR dir_deviceW[] = {'D','e','v','i','c','e'};
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static const WCHAR dir_objtypeW[] = {'O','b','j','e','c','t','T','y','p','e','s'};
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static const WCHAR dir_kernelW[] = {'K','e','r','n','e','l','O','b','j','e','c','t','s'};
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static const WCHAR dir_nlsW[] = {'N','L','S'};
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static const struct unicode_str dir_global_str = {dir_globalW, sizeof(dir_globalW)};
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static const struct unicode_str dir_driver_str = {dir_driverW, sizeof(dir_driverW)};
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static const struct unicode_str dir_device_str = {dir_deviceW, sizeof(dir_deviceW)};
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static const struct unicode_str dir_objtype_str = {dir_objtypeW, sizeof(dir_objtypeW)};
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static const struct unicode_str dir_kernel_str = {dir_kernelW, sizeof(dir_kernelW)};
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static const struct unicode_str dir_nls_str = {dir_nlsW, sizeof(dir_nlsW)};
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/* symlinks */
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static const WCHAR link_dosdevW[] = {'D','o','s','D','e','v','i','c','e','s'};
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static const WCHAR link_globalrootW[] = {'G','L','O','B','A','L','R','O','O','T'};
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static const WCHAR link_globalW[] = {'G','l','o','b','a','l'};
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static const WCHAR link_nulW[] = {'N','U','L'};
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static const WCHAR link_pipeW[] = {'P','I','P','E'};
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static const WCHAR link_mailslotW[] = {'M','A','I','L','S','L','O','T'};
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static const WCHAR link_coninW[] = {'C','O','N','I','N','$'};
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static const WCHAR link_conoutW[] = {'C','O','N','O','U','T','$'};
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static const WCHAR link_conW[] = {'C','O','N'};
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static const WCHAR link_currentinW[] = {'\\','D','e','v','i','c','e','\\','C','o','n','D','r','v',
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'\\','C','u','r','r','e','n','t','I','n'};
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static const WCHAR link_currentoutW[] = {'\\','D','e','v','i','c','e','\\','C','o','n','D','r','v',
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'\\','C','u','r','r','e','n','t','O','u','t'};
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static const WCHAR link_consoleW[] = {'\\','D','e','v','i','c','e','\\','C','o','n','D','r','v',
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'\\','C','o','n','s','o','l','e'};
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static const struct unicode_str link_dosdev_str = {link_dosdevW, sizeof(link_dosdevW)};
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static const struct unicode_str link_globalroot_str = {link_globalrootW, sizeof(link_globalrootW)};
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static const struct unicode_str link_global_str = {link_globalW, sizeof(link_globalW)};
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static const struct unicode_str link_nul_str = {link_nulW, sizeof(link_nulW)};
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static const struct unicode_str link_pipe_str = {link_pipeW, sizeof(link_pipeW)};
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static const struct unicode_str link_mailslot_str = {link_mailslotW, sizeof(link_mailslotW)};
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static const struct unicode_str link_con_str = {link_conW, sizeof(link_conW)};
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static const struct unicode_str link_conin_str = {link_coninW, sizeof(link_coninW)};
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static const struct unicode_str link_conout_str = {link_conoutW, sizeof(link_conoutW)};
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static const struct unicode_str link_currentin_str = {link_currentinW, sizeof(link_currentinW)};
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static const struct unicode_str link_currentout_str = {link_currentoutW, sizeof(link_currentoutW)};
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static const struct unicode_str link_console_str = {link_consoleW, sizeof(link_consoleW)};
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/* devices */
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static const WCHAR named_pipeW[] = {'N','a','m','e','d','P','i','p','e'};
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static const WCHAR mailslotW[] = {'M','a','i','l','S','l','o','t'};
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static const WCHAR condrvW[] = {'C','o','n','D','r','v'};
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static const WCHAR nullW[] = {'N','u','l','l'};
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static const WCHAR afdW[] = {'A','f','d'};
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static const struct unicode_str named_pipe_str = {named_pipeW, sizeof(named_pipeW)};
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static const struct unicode_str mailslot_str = {mailslotW, sizeof(mailslotW)};
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static const struct unicode_str condrv_str = {condrvW, sizeof(condrvW)};
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static const struct unicode_str null_str = {nullW, sizeof(nullW)};
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static const struct unicode_str afd_str = {afdW, sizeof(afdW)};
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/* events */
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static const WCHAR event_low_memW[] = {'L','o','w','M','e','m','o','r','y','C','o','n','d','i','t','i','o','n'};
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static const WCHAR event_low_pagedW[] = {'L','o','w','P','a','g','e','d','P','o','o','l','C','o','n','d','i','t','i','o','n'};
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static const WCHAR event_low_nonpgW[] = {'L','o','w','N','o','n','P','a','g','e','d','P','o','o','l','C','o','n','d','i','t','i','o','n'};
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static const WCHAR event_high_memW[] = {'H','i','g','h','M','e','m','o','r','y','C','o','n','d','i','t','i','o','n'};
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static const WCHAR event_high_pagedW[] = {'H','i','g','h','P','a','g','e','d','P','o','o','l','C','o','n','d','i','t','i','o','n'};
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static const WCHAR event_high_nonpgW[] = {'H','i','g','h','N','o','n','P','a','g','e','d','P','o','o','l','C','o','n','d','i','t','i','o','n'};
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static const WCHAR keyed_event_crit_sectW[] = {'C','r','i','t','S','e','c','O','u','t','O','f','M','e','m','o','r','y','E','v','e','n','t'};
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static const struct unicode_str kernel_events[] =
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{
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{ event_low_memW, sizeof(event_low_memW) },
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{ event_low_pagedW, sizeof(event_low_pagedW) },
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{ event_low_nonpgW, sizeof(event_low_nonpgW) },
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{ event_high_memW, sizeof(event_high_memW) },
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{ event_high_pagedW, sizeof(event_high_pagedW) },
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{ event_high_nonpgW, sizeof(event_high_nonpgW) }
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};
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static const struct unicode_str keyed_event_crit_sect_str = {keyed_event_crit_sectW, sizeof(keyed_event_crit_sectW)};
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/* mappings */
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static const WCHAR intlW[] = {'N','l','s','S','e','c','t','i','o','n','L','A','N','G','_','I','N','T','L'};
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static const WCHAR user_dataW[] = {'_','_','w','i','n','e','_','u','s','e','r','_','s','h','a','r','e','d','_','d','a','t','a'};
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static const struct unicode_str intl_str = {intlW, sizeof(intlW)};
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static const struct unicode_str user_data_str = {user_dataW, sizeof(user_dataW)};
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struct directory *dir_driver, *dir_device, *dir_global, *dir_kernel, *dir_nls;
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struct object *named_pipe_device, *mailslot_device, *null_device;
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unsigned int i;
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root_directory = create_directory( NULL, NULL, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_driver = create_directory( &root_directory->obj, &dir_driver_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_device = create_directory( &root_directory->obj, &dir_device_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_objtype = create_directory( &root_directory->obj, &dir_objtype_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_kernel = create_directory( &root_directory->obj, &dir_kernel_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_global = create_directory( &root_directory->obj, &dir_global_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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dir_nls = create_directory( &root_directory->obj, &dir_nls_str, OBJ_PERMANENT, HASH_SIZE, NULL );
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/* devices */
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named_pipe_device = create_named_pipe_device( &dir_device->obj, &named_pipe_str, OBJ_PERMANENT, NULL );
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mailslot_device = create_mailslot_device( &dir_device->obj, &mailslot_str, OBJ_PERMANENT, NULL );
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null_device = create_unix_device( &dir_device->obj, &null_str, OBJ_PERMANENT, NULL, "/dev/null" );
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release_object( create_console_device( &dir_device->obj, &condrv_str, OBJ_PERMANENT, NULL ));
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release_object( create_socket_device( &dir_device->obj, &afd_str, OBJ_PERMANENT, NULL ));
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/* sessions */
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create_session( 0 );
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create_session( default_session_id );
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/* object types */
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for (i = 0; i < ARRAY_SIZE(types); i++)
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release_object( create_object_type( &dir_objtype->obj, i, OBJ_PERMANENT, NULL ));
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/* symlinks */
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release_object( create_obj_symlink( &root_directory->obj, &link_dosdev_str, OBJ_PERMANENT, &dir_global->obj, NULL ));
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release_object( create_root_symlink( &dir_global->obj, &link_globalroot_str, OBJ_PERMANENT, NULL ));
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release_object( create_obj_symlink( &dir_global->obj, &link_global_str, OBJ_PERMANENT, &dir_global->obj, NULL ));
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release_object( create_obj_symlink( &dir_global->obj, &link_nul_str, OBJ_PERMANENT, null_device, NULL ));
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release_object( create_obj_symlink( &dir_global->obj, &link_pipe_str, OBJ_PERMANENT, named_pipe_device, NULL ));
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release_object( create_obj_symlink( &dir_global->obj, &link_mailslot_str, OBJ_PERMANENT, mailslot_device, NULL ));
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release_object( create_symlink( &dir_global->obj, &link_conin_str, OBJ_PERMANENT, &link_currentin_str, NULL ));
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release_object( create_symlink( &dir_global->obj, &link_conout_str, OBJ_PERMANENT, &link_currentout_str, NULL ));
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release_object( create_symlink( &dir_global->obj, &link_con_str, OBJ_PERMANENT, &link_console_str, NULL ));
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/* events */
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for (i = 0; i < ARRAY_SIZE( kernel_events ); i++)
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release_object( create_event( &dir_kernel->obj, &kernel_events[i], OBJ_PERMANENT, 1, 0, NULL ));
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release_object( create_keyed_event( &dir_kernel->obj, &keyed_event_crit_sect_str, OBJ_PERMANENT, NULL ));
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/* mappings */
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release_object( create_fd_mapping( &dir_nls->obj, &intl_str, intl_fd, OBJ_PERMANENT, NULL ));
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release_object( create_user_data_mapping( &dir_kernel->obj, &user_data_str, OBJ_PERMANENT, NULL ));
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release_object( intl_fd );
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release_object( named_pipe_device );
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release_object( mailslot_device );
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release_object( null_device );
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release_object( root_directory );
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release_object( dir_driver );
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release_object( dir_device );
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release_object( dir_objtype );
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release_object( dir_kernel );
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release_object( dir_nls );
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release_object( dir_global );
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}
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/* create a directory object */
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DECL_HANDLER(create_directory)
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{
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struct unicode_str name;
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struct object *root;
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struct directory *dir;
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const struct security_descriptor *sd;
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const struct object_attributes *objattr = get_req_object_attributes( &sd, &name, &root );
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if (!objattr) return;
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if ((dir = create_directory( root, &name, objattr->attributes, HASH_SIZE, sd )))
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{
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reply->handle = alloc_handle( current->process, dir, req->access, objattr->attributes );
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release_object( dir );
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}
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if (root) release_object( root );
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}
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/* open a directory object */
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DECL_HANDLER(open_directory)
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{
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struct unicode_str name = get_req_unicode_str();
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reply->handle = open_object( current->process, req->rootdir, req->access,
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&directory_ops, &name, req->attributes );
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}
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/* get a directory entry by index */
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DECL_HANDLER(get_directory_entry)
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{
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struct directory *dir = (struct directory *)get_handle_obj( current->process, req->handle,
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DIRECTORY_QUERY, &directory_ops );
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if (dir)
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{
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struct object *obj = find_object_index( dir->entries, req->index );
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if (obj)
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{
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data_size_t name_len;
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const struct unicode_str *type_name = &obj->ops->type->name;
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const WCHAR *name = get_object_name( obj, &name_len );
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reply->total_len = name_len + type_name->len;
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if (reply->total_len <= get_reply_max_size())
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{
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void *ptr = set_reply_data_size( reply->total_len );
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if (ptr)
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{
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reply->name_len = name_len;
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memcpy( ptr, name, name_len );
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memcpy( (char *)ptr + name_len, type_name->str, type_name->len );
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}
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}
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else set_error( STATUS_BUFFER_TOO_SMALL );
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release_object( obj );
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}
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release_object( dir );
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}
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}
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/* query object type name information */
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DECL_HANDLER(get_object_type)
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{
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struct object *obj;
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struct type_descr *type;
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struct object_type_info *info;
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if (!(obj = get_handle_obj( current->process, req->handle, 0, NULL ))) return;
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type = obj->ops->type;
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if (sizeof(*info) + type->name.len <= get_reply_max_size())
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{
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if ((info = set_reply_data_size( sizeof(*info) + type->name.len )))
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{
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info->name_len = type->name.len;
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info->index = type->index;
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info->obj_count = type->obj_count;
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info->handle_count = type->handle_count;
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info->obj_max = type->obj_max;
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info->handle_max = type->handle_max;
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info->valid_access = type->valid_access;
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info->mapping = type->mapping;
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memcpy( info + 1, type->name.str, type->name.len );
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}
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}
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else set_error( STATUS_BUFFER_OVERFLOW );
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release_object( obj );
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}
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/* query type information for all types */
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DECL_HANDLER(get_object_types)
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{
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struct object_type_info *info;
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data_size_t size = ARRAY_SIZE(types) * sizeof(*info);
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unsigned int i;
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char *next;
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for (i = 0; i < ARRAY_SIZE(types); i++) size += (types[i]->name.len + 3) & ~3;
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if (size <= get_reply_max_size())
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{
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if ((info = set_reply_data_size( size )))
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{
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for (i = 0; i < ARRAY_SIZE(types); i++)
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{
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info->name_len = types[i]->name.len;
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info->index = types[i]->index;
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info->obj_count = types[i]->obj_count;
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info->handle_count = types[i]->handle_count;
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info->obj_max = types[i]->obj_max;
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info->handle_max = types[i]->handle_max;
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info->valid_access = types[i]->valid_access;
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info->mapping = types[i]->mapping;
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memcpy( info + 1, types[i]->name.str, types[i]->name.len );
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next = (char *)(info + 1) + types[i]->name.len;
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if (types[i]->name.len & 3)
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{
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memset( next, 0, 4 - (types[i]->name.len & 3) );
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next += 4 - (types[i]->name.len & 3);
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}
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info = (struct object_type_info *)next;
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}
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reply->count = i;
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}
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}
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else set_error( STATUS_BUFFER_OVERFLOW );
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}
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