2 * Server-side registry management
4 * Copyright (C) 1999 Alexandre Julliard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
26 #include "wine/port.h"
41 #define WIN32_NO_STATUS
50 #include "wine/library.h"
54 struct list entry; /* entry in list of notifications */
55 struct event *event; /* event to set when changing this key */
56 int subtree; /* true if subtree notification */
57 unsigned int filter; /* which events to notify on */
58 obj_handle_t hkey; /* hkey associated with this notification */
59 struct process *process; /* process in which the hkey is valid */
65 struct object obj; /* object header */
66 WCHAR *name; /* key name */
67 WCHAR *class; /* key class */
68 unsigned short namelen; /* length of key name */
69 unsigned short classlen; /* length of class name */
70 struct key *parent; /* parent key */
71 int last_subkey; /* last in use subkey */
72 int nb_subkeys; /* count of allocated subkeys */
73 struct key **subkeys; /* subkeys array */
74 int last_value; /* last in use value */
75 int nb_values; /* count of allocated values in array */
76 struct key_value *values; /* values array */
77 unsigned int flags; /* flags */
78 timeout_t modif; /* last modification time */
79 struct list notify_list; /* list of notifications */
83 #define KEY_VOLATILE 0x0001 /* key is volatile (not saved to disk) */
84 #define KEY_DELETED 0x0002 /* key has been deleted */
85 #define KEY_DIRTY 0x0004 /* key has been modified */
86 #define KEY_SYMLINK 0x0008 /* key is a symbolic link */
87 #define KEY_WOW64 0x0010 /* key contains a Wow6432Node subkey */
88 #define KEY_WOWSHARE 0x0020 /* key is a Wow64 shared key (used for Software\Classes) */
93 WCHAR *name; /* value name */
94 unsigned short namelen; /* length of value name */
95 unsigned short type; /* value type */
96 data_size_t len; /* value data length in bytes */
97 void *data; /* pointer to value data */
100 #define MIN_SUBKEYS 8 /* min. number of allocated subkeys per key */
101 #define MIN_VALUES 8 /* min. number of allocated values per key */
103 #define MAX_NAME_LEN MAX_PATH /* max. length of a key name */
104 #define MAX_VALUE_LEN MAX_PATH /* max. length of a value name */
106 /* the root of the registry tree */
107 static struct key *root_key;
109 static const timeout_t ticks_1601_to_1970 = (timeout_t)86400 * (369 * 365 + 89) * TICKS_PER_SEC;
110 static const timeout_t save_period = 30 * -TICKS_PER_SEC; /* delay between periodic saves */
111 static struct timeout_user *save_timeout_user; /* saving timer */
113 static const WCHAR root_name[] = { '\\','R','e','g','i','s','t','r','y','\\' };
114 static const WCHAR wow6432node[] = {'W','o','w','6','4','3','2','N','o','d','e'};
115 static const WCHAR symlink_value[] = {'S','y','m','b','o','l','i','c','L','i','n','k','V','a','l','u','e'};
116 static const struct unicode_str symlink_str = { symlink_value, sizeof(symlink_value) };
118 static void set_periodic_save_timer(void);
119 static struct key_value *find_value( const struct key *key, const struct unicode_str *name, int *index );
121 /* information about where to save a registry branch */
122 struct save_branch_info
128 #define MAX_SAVE_BRANCH_INFO 3
129 static int save_branch_count;
130 static struct save_branch_info save_branch_info[MAX_SAVE_BRANCH_INFO];
133 /* information about a file being loaded */
134 struct file_load_info
136 const char *filename; /* input file name */
137 FILE *file; /* input file */
138 char *buffer; /* line buffer */
139 int len; /* buffer length */
140 int line; /* current input line */
141 WCHAR *tmp; /* temp buffer to use while parsing input */
142 size_t tmplen; /* length of temp buffer */
146 static void key_dump( struct object *obj, int verbose );
147 static unsigned int key_map_access( struct object *obj, unsigned int access );
148 static int key_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
149 static void key_destroy( struct object *obj );
151 static const struct object_ops key_ops =
153 sizeof(struct key), /* size */
155 no_get_type, /* get_type */
156 no_add_queue, /* add_queue */
157 NULL, /* remove_queue */
159 NULL, /* satisfied */
160 no_signal, /* signal */
161 no_get_fd, /* get_fd */
162 key_map_access, /* map_access */
163 default_get_sd, /* get_sd */
164 default_set_sd, /* set_sd */
165 no_lookup_name, /* lookup_name */
166 no_open_file, /* open_file */
167 key_close_handle, /* close_handle */
168 key_destroy /* destroy */
172 static inline int is_wow6432node( const WCHAR *name, unsigned int len )
174 return (len == sizeof(wow6432node) &&
175 !memicmpW( name, wow6432node, sizeof(wow6432node)/sizeof(WCHAR) ));
179 * The registry text file format v2 used by this code is similar to the one
180 * used by REGEDIT import/export functionality, with the following differences:
181 * - strings and key names can contain \x escapes for Unicode
182 * - key names use escapes too in order to support Unicode
183 * - the modification time optionally follows the key name
184 * - REG_EXPAND_SZ and REG_MULTI_SZ are saved as strings instead of hex
187 /* dump the full path of a key */
188 static void dump_path( const struct key *key, const struct key *base, FILE *f )
190 if (key->parent && key->parent != base)
192 dump_path( key->parent, base, f );
193 fprintf( f, "\\\\" );
195 dump_strW( key->name, key->namelen / sizeof(WCHAR), f, "[]" );
198 /* dump a value to a text file */
199 static void dump_value( const struct key_value *value, FILE *f )
207 count = 1 + dump_strW( value->name, value->namelen / sizeof(WCHAR), f, "\"\"" );
208 count += fprintf( f, "\"=" );
210 else count = fprintf( f, "@=" );
217 /* only output properly terminated strings in string format */
218 if (value->len < sizeof(WCHAR)) break;
219 if (value->len % sizeof(WCHAR)) break;
220 if (((WCHAR *)value->data)[value->len / sizeof(WCHAR) - 1]) break;
221 if (value->type != REG_SZ) fprintf( f, "str(%x):", value->type );
223 dump_strW( (WCHAR *)value->data, value->len / sizeof(WCHAR), f, "\"\"" );
224 fprintf( f, "\"\n" );
228 if (value->len != sizeof(dw)) break;
229 memcpy( &dw, value->data, sizeof(dw) );
230 fprintf( f, "dword:%08x\n", dw );
234 if (value->type == REG_BINARY) count += fprintf( f, "hex:" );
235 else count += fprintf( f, "hex(%x):", value->type );
236 for (i = 0; i < value->len; i++)
238 count += fprintf( f, "%02x", *((unsigned char *)value->data + i) );
239 if (i < value->len-1)
244 fprintf( f, "\\\n " );
252 /* save a registry and all its subkeys to a text file */
253 static void save_subkeys( const struct key *key, const struct key *base, FILE *f )
257 if (key->flags & KEY_VOLATILE) return;
258 /* save key if it has either some values or no subkeys, or needs special options */
259 /* keys with no values but subkeys are saved implicitly by saving the subkeys */
260 if ((key->last_value >= 0) || (key->last_subkey == -1) || key->class || (key->flags & KEY_SYMLINK))
263 if (key != base) dump_path( key, base, f );
264 fprintf( f, "] %u\n", (unsigned int)((key->modif - ticks_1601_to_1970) / TICKS_PER_SEC) );
267 fprintf( f, "#class=\"" );
268 dump_strW( key->class, key->classlen / sizeof(WCHAR), f, "\"\"" );
269 fprintf( f, "\"\n" );
271 if (key->flags & KEY_SYMLINK) fputs( "#link\n", f );
272 for (i = 0; i <= key->last_value; i++) dump_value( &key->values[i], f );
274 for (i = 0; i <= key->last_subkey; i++) save_subkeys( key->subkeys[i], base, f );
277 static void dump_operation( const struct key *key, const struct key_value *value, const char *op )
279 fprintf( stderr, "%s key ", op );
280 if (key) dump_path( key, NULL, stderr );
281 else fprintf( stderr, "ERROR" );
284 fprintf( stderr, " value ");
285 dump_value( value, stderr );
287 else fprintf( stderr, "\n" );
290 static void key_dump( struct object *obj, int verbose )
292 struct key *key = (struct key *)obj;
293 assert( obj->ops == &key_ops );
294 fprintf( stderr, "Key flags=%x ", key->flags );
295 dump_path( key, NULL, stderr );
296 fprintf( stderr, "\n" );
299 /* notify waiter and maybe delete the notification */
300 static void do_notification( struct key *key, struct notify *notify, int del )
304 set_event( notify->event );
305 release_object( notify->event );
306 notify->event = NULL;
310 list_remove( ¬ify->entry );
315 static inline struct notify *find_notify( struct key *key, struct process *process, obj_handle_t hkey )
317 struct notify *notify;
319 LIST_FOR_EACH_ENTRY( notify, &key->notify_list, struct notify, entry )
321 if (notify->process == process && notify->hkey == hkey) return notify;
326 static unsigned int key_map_access( struct object *obj, unsigned int access )
328 if (access & GENERIC_READ) access |= KEY_READ;
329 if (access & GENERIC_WRITE) access |= KEY_WRITE;
330 if (access & GENERIC_EXECUTE) access |= KEY_EXECUTE;
331 if (access & GENERIC_ALL) access |= KEY_ALL_ACCESS;
332 return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
335 /* close the notification associated with a handle */
336 static int key_close_handle( struct object *obj, struct process *process, obj_handle_t handle )
338 struct key * key = (struct key *) obj;
339 struct notify *notify = find_notify( key, process, handle );
340 if (notify) do_notification( key, notify, 1 );
341 return 1; /* ok to close */
344 static void key_destroy( struct object *obj )
348 struct key *key = (struct key *)obj;
349 assert( obj->ops == &key_ops );
353 for (i = 0; i <= key->last_value; i++)
355 free( key->values[i].name );
356 free( key->values[i].data );
359 for (i = 0; i <= key->last_subkey; i++)
361 key->subkeys[i]->parent = NULL;
362 release_object( key->subkeys[i] );
364 free( key->subkeys );
365 /* unconditionally notify everything waiting on this key */
366 while ((ptr = list_head( &key->notify_list )))
368 struct notify *notify = LIST_ENTRY( ptr, struct notify, entry );
369 do_notification( key, notify, 1 );
373 /* get the request vararg as registry path */
374 static inline void get_req_path( struct unicode_str *str, int skip_root )
376 str->str = get_req_data();
377 str->len = (get_req_data_size() / sizeof(WCHAR)) * sizeof(WCHAR);
379 if (skip_root && str->len >= sizeof(root_name) &&
380 !memicmpW( str->str, root_name, sizeof(root_name)/sizeof(WCHAR) ))
382 str->str += sizeof(root_name)/sizeof(WCHAR);
383 str->len -= sizeof(root_name);
387 /* return the next token in a given path */
388 /* token->str must point inside the path, or be NULL for the first call */
389 static struct unicode_str *get_path_token( const struct unicode_str *path, struct unicode_str *token )
391 data_size_t i = 0, len = path->len / sizeof(WCHAR);
393 if (!token->str) /* first time */
395 /* path cannot start with a backslash */
396 if (len && path->str[0] == '\\')
398 set_error( STATUS_OBJECT_PATH_INVALID );
404 i = token->str - path->str;
405 i += token->len / sizeof(WCHAR);
406 while (i < len && path->str[i] == '\\') i++;
408 token->str = path->str + i;
409 while (i < len && path->str[i] != '\\') i++;
410 token->len = (path->str + i - token->str) * sizeof(WCHAR);
414 /* allocate a key object */
415 static struct key *alloc_key( const struct unicode_str *name, timeout_t modif )
418 if ((key = alloc_object( &key_ops )))
422 key->namelen = name->len;
425 key->last_subkey = -1;
429 key->last_value = -1;
433 list_init( &key->notify_list );
434 if (name->len && !(key->name = memdup( name->str, name->len )))
436 release_object( key );
443 /* mark a key and all its parents as dirty (modified) */
444 static void make_dirty( struct key *key )
448 if (key->flags & (KEY_DIRTY|KEY_VOLATILE)) return; /* nothing to do */
449 key->flags |= KEY_DIRTY;
454 /* mark a key and all its subkeys as clean (not modified) */
455 static void make_clean( struct key *key )
459 if (key->flags & KEY_VOLATILE) return;
460 if (!(key->flags & KEY_DIRTY)) return;
461 key->flags &= ~KEY_DIRTY;
462 for (i = 0; i <= key->last_subkey; i++) make_clean( key->subkeys[i] );
465 /* go through all the notifications and send them if necessary */
466 static void check_notify( struct key *key, unsigned int change, int not_subtree )
468 struct list *ptr, *next;
470 LIST_FOR_EACH_SAFE( ptr, next, &key->notify_list )
472 struct notify *n = LIST_ENTRY( ptr, struct notify, entry );
473 if ( ( not_subtree || n->subtree ) && ( change & n->filter ) )
474 do_notification( key, n, 0 );
478 /* update key modification time */
479 static void touch_key( struct key *key, unsigned int change )
483 key->modif = current_time;
486 /* do notifications */
487 check_notify( key, change, 1 );
488 for ( k = key->parent; k; k = k->parent )
489 check_notify( k, change & ~REG_NOTIFY_CHANGE_LAST_SET, 0 );
492 /* try to grow the array of subkeys; return 1 if OK, 0 on error */
493 static int grow_subkeys( struct key *key )
495 struct key **new_subkeys;
500 nb_subkeys = key->nb_subkeys + (key->nb_subkeys / 2); /* grow by 50% */
501 if (!(new_subkeys = realloc( key->subkeys, nb_subkeys * sizeof(*new_subkeys) )))
503 set_error( STATUS_NO_MEMORY );
509 nb_subkeys = MIN_VALUES;
510 if (!(new_subkeys = mem_alloc( nb_subkeys * sizeof(*new_subkeys) ))) return 0;
512 key->subkeys = new_subkeys;
513 key->nb_subkeys = nb_subkeys;
517 /* allocate a subkey for a given key, and return its index */
518 static struct key *alloc_subkey( struct key *parent, const struct unicode_str *name,
519 int index, timeout_t modif )
524 if (name->len > MAX_NAME_LEN * sizeof(WCHAR))
526 set_error( STATUS_NAME_TOO_LONG );
529 if (parent->last_subkey + 1 == parent->nb_subkeys)
531 /* need to grow the array */
532 if (!grow_subkeys( parent )) return NULL;
534 if ((key = alloc_key( name, modif )) != NULL)
536 key->parent = parent;
537 for (i = ++parent->last_subkey; i > index; i--)
538 parent->subkeys[i] = parent->subkeys[i-1];
539 parent->subkeys[index] = key;
540 if (is_wow6432node( key->name, key->namelen )) parent->flags |= KEY_WOW64;
545 /* free a subkey of a given key */
546 static void free_subkey( struct key *parent, int index )
551 assert( index >= 0 );
552 assert( index <= parent->last_subkey );
554 key = parent->subkeys[index];
555 for (i = index; i < parent->last_subkey; i++) parent->subkeys[i] = parent->subkeys[i + 1];
556 parent->last_subkey--;
557 key->flags |= KEY_DELETED;
559 if (is_wow6432node( key->name, key->namelen )) parent->flags &= ~KEY_WOW64;
560 release_object( key );
562 /* try to shrink the array */
563 nb_subkeys = parent->nb_subkeys;
564 if (nb_subkeys > MIN_SUBKEYS && parent->last_subkey < nb_subkeys / 2)
566 struct key **new_subkeys;
567 nb_subkeys -= nb_subkeys / 3; /* shrink by 33% */
568 if (nb_subkeys < MIN_SUBKEYS) nb_subkeys = MIN_SUBKEYS;
569 if (!(new_subkeys = realloc( parent->subkeys, nb_subkeys * sizeof(*new_subkeys) ))) return;
570 parent->subkeys = new_subkeys;
571 parent->nb_subkeys = nb_subkeys;
575 /* find the named child of a given key and return its index */
576 static struct key *find_subkey( const struct key *key, const struct unicode_str *name, int *index )
578 int i, min, max, res;
582 max = key->last_subkey;
586 len = min( key->subkeys[i]->namelen, name->len );
587 res = memicmpW( key->subkeys[i]->name, name->str, len / sizeof(WCHAR) );
588 if (!res) res = key->subkeys[i]->namelen - name->len;
592 return key->subkeys[i];
594 if (res > 0) max = i - 1;
597 *index = min; /* this is where we should insert it */
601 /* return the wow64 variant of the key, or the key itself if none */
602 static struct key *find_wow64_subkey( struct key *key, const struct unicode_str *name )
604 static const struct unicode_str wow6432node_str = { wow6432node, sizeof(wow6432node) };
607 if (!(key->flags & KEY_WOW64)) return key;
608 if (!is_wow6432node( name->str, name->len ))
610 key = find_subkey( key, &wow6432node_str, &index );
611 assert( key ); /* if KEY_WOW64 is set we must find it */
617 /* follow a symlink and return the resolved key */
618 static struct key *follow_symlink( struct key *key, int iteration )
620 struct unicode_str path, token;
621 struct key_value *value;
624 if (iteration > 16) return NULL;
625 if (!(key->flags & KEY_SYMLINK)) return key;
626 if (!(value = find_value( key, &symlink_str, &index ))) return NULL;
628 path.str = value->data;
629 path.len = (value->len / sizeof(WCHAR)) * sizeof(WCHAR);
630 if (path.len <= sizeof(root_name)) return NULL;
631 if (memicmpW( path.str, root_name, sizeof(root_name)/sizeof(WCHAR) )) return NULL;
632 path.str += sizeof(root_name) / sizeof(WCHAR);
633 path.len -= sizeof(root_name);
637 if (!get_path_token( &path, &token )) return NULL;
640 if (!(key = find_subkey( key, &token, &index ))) break;
641 if (!(key = follow_symlink( key, iteration + 1 ))) break;
642 get_path_token( &path, &token );
647 /* open a key until we find an element that doesn't exist */
648 /* helper for open_key and create_key */
649 static struct key *open_key_prefix( struct key *key, const struct unicode_str *name,
650 unsigned int access, struct unicode_str *token, int *index )
653 if (!get_path_token( name, token )) return NULL;
654 if (access & KEY_WOW64_32KEY) key = find_wow64_subkey( key, token );
658 if (!(subkey = find_subkey( key, token, index )))
660 if ((key->flags & KEY_WOWSHARE) && !(access & KEY_WOW64_64KEY))
662 /* try in the 64-bit parent */
664 subkey = find_subkey( key, token, index );
669 get_path_token( name, token );
670 if (!token->len) break;
671 if (!(access & KEY_WOW64_64KEY)) key = find_wow64_subkey( key, token );
672 if (!(key = follow_symlink( key, 0 )))
674 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
682 static struct key *open_key( struct key *key, const struct unicode_str *name, unsigned int access,
683 unsigned int attributes )
686 struct unicode_str token;
688 if (!(key = open_key_prefix( key, name, access, &token, &index ))) return NULL;
692 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
695 if (!(access & KEY_WOW64_64KEY)) key = find_wow64_subkey( key, &token );
696 if (!(attributes & OBJ_OPENLINK) && !(key = follow_symlink( key, 0 )))
698 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
701 if (debug_level > 1) dump_operation( key, NULL, "Open" );
706 /* create a subkey */
707 static struct key *create_key( struct key *key, const struct unicode_str *name,
708 const struct unicode_str *class, unsigned int options,
709 unsigned int access, unsigned int attributes, int *created )
712 struct unicode_str token, next;
714 if (key->flags & KEY_DELETED) /* we cannot create a subkey under a deleted key */
716 set_error( STATUS_KEY_DELETED );
721 if (!(key = open_key_prefix( key, name, access, &token, &index ))) return NULL;
723 if (!token.len) /* the key already exists */
725 if (!(access & KEY_WOW64_64KEY)) key = find_wow64_subkey( key, &token );
726 if (options & REG_OPTION_CREATE_LINK)
728 set_error( STATUS_OBJECT_NAME_COLLISION );
731 if (!(attributes & OBJ_OPENLINK) && !(key = follow_symlink( key, 0 )))
733 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
736 if (debug_level > 1) dump_operation( key, NULL, "Open" );
741 /* token must be the last path component at this point */
743 get_path_token( name, &next );
746 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
750 if ((key->flags & KEY_VOLATILE) && !(options & REG_OPTION_VOLATILE))
752 set_error( STATUS_CHILD_MUST_BE_VOLATILE );
757 if (!(key = alloc_subkey( key, &token, index, current_time ))) return NULL;
759 if (options & REG_OPTION_CREATE_LINK) key->flags |= KEY_SYMLINK;
760 if (options & REG_OPTION_VOLATILE) key->flags |= KEY_VOLATILE;
761 else key->flags |= KEY_DIRTY;
763 if (debug_level > 1) dump_operation( key, NULL, "Create" );
764 if (class && class->len)
766 key->classlen = class->len;
768 if (!(key->class = memdup( class->str, key->classlen ))) key->classlen = 0;
774 /* recursively create a subkey (for internal use only) */
775 static struct key *create_key_recursive( struct key *key, const struct unicode_str *name, timeout_t modif )
779 struct unicode_str token;
782 if (!get_path_token( name, &token )) return NULL;
786 if (!(subkey = find_subkey( key, &token, &index ))) break;
788 if (!(key = follow_symlink( key, 0 )))
790 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
793 get_path_token( name, &token );
798 if (!(key = alloc_subkey( key, &token, index, modif ))) return NULL;
802 get_path_token( name, &token );
803 if (!token.len) break;
804 /* we know the index is always 0 in a new key */
805 if (!(key = alloc_subkey( key, &token, 0, modif )))
807 free_subkey( base, index );
817 /* query information about a key or a subkey */
818 static void enum_key( const struct key *key, int index, int info_class,
819 struct enum_key_reply *reply )
822 data_size_t len, namelen, classlen;
823 data_size_t max_subkey = 0, max_class = 0;
824 data_size_t max_value = 0, max_data = 0;
827 if (index != -1) /* -1 means use the specified key directly */
829 if ((index < 0) || (index > key->last_subkey))
831 set_error( STATUS_NO_MORE_ENTRIES );
834 key = key->subkeys[index];
837 namelen = key->namelen;
838 classlen = key->classlen;
842 case KeyBasicInformation:
843 classlen = 0; /* only return the name */
845 case KeyNodeInformation:
846 reply->max_subkey = 0;
847 reply->max_class = 0;
848 reply->max_value = 0;
851 case KeyFullInformation:
852 for (i = 0; i <= key->last_subkey; i++)
854 struct key *subkey = key->subkeys[i];
855 len = subkey->namelen / sizeof(WCHAR);
856 if (len > max_subkey) max_subkey = len;
857 len = subkey->classlen / sizeof(WCHAR);
858 if (len > max_class) max_class = len;
860 for (i = 0; i <= key->last_value; i++)
862 len = key->values[i].namelen / sizeof(WCHAR);
863 if (len > max_value) max_value = len;
864 len = key->values[i].len;
865 if (len > max_data) max_data = len;
867 reply->max_subkey = max_subkey;
868 reply->max_class = max_class;
869 reply->max_value = max_value;
870 reply->max_data = max_data;
871 namelen = 0; /* only return the class */
874 set_error( STATUS_INVALID_PARAMETER );
877 reply->subkeys = key->last_subkey + 1;
878 reply->values = key->last_value + 1;
879 reply->modif = key->modif;
880 reply->total = namelen + classlen;
882 len = min( reply->total, get_reply_max_size() );
883 if (len && (data = set_reply_data_size( len )))
887 reply->namelen = namelen;
888 memcpy( data, key->name, namelen );
889 memcpy( data + namelen, key->class, len - namelen );
893 reply->namelen = len;
894 memcpy( data, key->name, len );
897 if (debug_level > 1) dump_operation( key, NULL, "Enum" );
900 /* delete a key and its values */
901 static int delete_key( struct key *key, int recurse )
906 /* must find parent and index */
909 set_error( STATUS_ACCESS_DENIED );
912 if (!(parent = key->parent) || (key->flags & KEY_DELETED))
914 set_error( STATUS_KEY_DELETED );
918 while (recurse && (key->last_subkey>=0))
919 if (0 > delete_key(key->subkeys[key->last_subkey], 1))
922 for (index = 0; index <= parent->last_subkey; index++)
923 if (parent->subkeys[index] == key) break;
924 assert( index <= parent->last_subkey );
926 /* we can only delete a key that has no subkeys */
927 if (key->last_subkey >= 0)
929 set_error( STATUS_ACCESS_DENIED );
933 if (debug_level > 1) dump_operation( key, NULL, "Delete" );
934 free_subkey( parent, index );
935 touch_key( parent, REG_NOTIFY_CHANGE_NAME );
939 /* try to grow the array of values; return 1 if OK, 0 on error */
940 static int grow_values( struct key *key )
942 struct key_value *new_val;
947 nb_values = key->nb_values + (key->nb_values / 2); /* grow by 50% */
948 if (!(new_val = realloc( key->values, nb_values * sizeof(*new_val) )))
950 set_error( STATUS_NO_MEMORY );
956 nb_values = MIN_VALUES;
957 if (!(new_val = mem_alloc( nb_values * sizeof(*new_val) ))) return 0;
959 key->values = new_val;
960 key->nb_values = nb_values;
964 /* find the named value of a given key and return its index in the array */
965 static struct key_value *find_value( const struct key *key, const struct unicode_str *name, int *index )
967 int i, min, max, res;
971 max = key->last_value;
975 len = min( key->values[i].namelen, name->len );
976 res = memicmpW( key->values[i].name, name->str, len / sizeof(WCHAR) );
977 if (!res) res = key->values[i].namelen - name->len;
981 return &key->values[i];
983 if (res > 0) max = i - 1;
986 *index = min; /* this is where we should insert it */
990 /* insert a new value; the index must have been returned by find_value */
991 static struct key_value *insert_value( struct key *key, const struct unicode_str *name, int index )
993 struct key_value *value;
994 WCHAR *new_name = NULL;
997 if (name->len > MAX_VALUE_LEN * sizeof(WCHAR))
999 set_error( STATUS_NAME_TOO_LONG );
1002 if (key->last_value + 1 == key->nb_values)
1004 if (!grow_values( key )) return NULL;
1006 if (name->len && !(new_name = memdup( name->str, name->len ))) return NULL;
1007 for (i = ++key->last_value; i > index; i--) key->values[i] = key->values[i - 1];
1008 value = &key->values[index];
1009 value->name = new_name;
1010 value->namelen = name->len;
1016 /* set a key value */
1017 static void set_value( struct key *key, const struct unicode_str *name,
1018 int type, const void *data, data_size_t len )
1020 struct key_value *value;
1024 if ((value = find_value( key, name, &index )))
1026 /* check if the new value is identical to the existing one */
1027 if (value->type == type && value->len == len &&
1028 value->data && !memcmp( value->data, data, len ))
1030 if (debug_level > 1) dump_operation( key, value, "Skip setting" );
1035 if (key->flags & KEY_SYMLINK)
1037 if (type != REG_LINK || name->len != symlink_str.len ||
1038 memicmpW( name->str, symlink_str.str, name->len / sizeof(WCHAR) ))
1040 set_error( STATUS_ACCESS_DENIED );
1045 if (len && !(ptr = memdup( data, len ))) return;
1049 if (!(value = insert_value( key, name, index )))
1055 else free( value->data ); /* already existing, free previous data */
1060 touch_key( key, REG_NOTIFY_CHANGE_LAST_SET );
1061 if (debug_level > 1) dump_operation( key, value, "Set" );
1064 /* get a key value */
1065 static void get_value( struct key *key, const struct unicode_str *name, int *type, data_size_t *len )
1067 struct key_value *value;
1070 if ((value = find_value( key, name, &index )))
1072 *type = value->type;
1074 if (value->data) set_reply_data( value->data, min( value->len, get_reply_max_size() ));
1075 if (debug_level > 1) dump_operation( key, value, "Get" );
1080 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
1084 /* enumerate a key value */
1085 static void enum_value( struct key *key, int i, int info_class, struct enum_key_value_reply *reply )
1087 struct key_value *value;
1089 if (i < 0 || i > key->last_value) set_error( STATUS_NO_MORE_ENTRIES );
1093 data_size_t namelen, maxlen;
1095 value = &key->values[i];
1096 reply->type = value->type;
1097 namelen = value->namelen;
1101 case KeyValueBasicInformation:
1102 reply->total = namelen;
1104 case KeyValueFullInformation:
1105 reply->total = namelen + value->len;
1107 case KeyValuePartialInformation:
1108 reply->total = value->len;
1112 set_error( STATUS_INVALID_PARAMETER );
1116 maxlen = min( reply->total, get_reply_max_size() );
1117 if (maxlen && ((data = set_reply_data_size( maxlen ))))
1119 if (maxlen > namelen)
1121 reply->namelen = namelen;
1122 memcpy( data, value->name, namelen );
1123 memcpy( (char *)data + namelen, value->data, maxlen - namelen );
1127 reply->namelen = maxlen;
1128 memcpy( data, value->name, maxlen );
1131 if (debug_level > 1) dump_operation( key, value, "Enum" );
1135 /* delete a value */
1136 static void delete_value( struct key *key, const struct unicode_str *name )
1138 struct key_value *value;
1139 int i, index, nb_values;
1141 if (!(value = find_value( key, name, &index )))
1143 set_error( STATUS_OBJECT_NAME_NOT_FOUND );
1146 if (debug_level > 1) dump_operation( key, value, "Delete" );
1147 free( value->name );
1148 free( value->data );
1149 for (i = index; i < key->last_value; i++) key->values[i] = key->values[i + 1];
1151 touch_key( key, REG_NOTIFY_CHANGE_LAST_SET );
1153 /* try to shrink the array */
1154 nb_values = key->nb_values;
1155 if (nb_values > MIN_VALUES && key->last_value < nb_values / 2)
1157 struct key_value *new_val;
1158 nb_values -= nb_values / 3; /* shrink by 33% */
1159 if (nb_values < MIN_VALUES) nb_values = MIN_VALUES;
1160 if (!(new_val = realloc( key->values, nb_values * sizeof(*new_val) ))) return;
1161 key->values = new_val;
1162 key->nb_values = nb_values;
1166 /* get the registry key corresponding to an hkey handle */
1167 static inline struct key *get_hkey_obj( obj_handle_t hkey, unsigned int access )
1169 return (struct key *)get_handle_obj( current->process, hkey, access, &key_ops );
1172 /* get the registry key corresponding to a parent key handle */
1173 static inline struct key *get_parent_hkey_obj( obj_handle_t hkey )
1175 if (!hkey) return (struct key *)grab_object( root_key );
1176 return (struct key *)get_handle_obj( current->process, hkey, 0, &key_ops );
1179 /* read a line from the input file */
1180 static int read_next_line( struct file_load_info *info )
1183 int newlen, pos = 0;
1188 if (!fgets( info->buffer + pos, info->len - pos, info->file ))
1189 return (pos != 0); /* EOF */
1190 pos = strlen(info->buffer);
1191 if (info->buffer[pos-1] == '\n')
1193 /* got a full line */
1194 info->buffer[--pos] = 0;
1195 if (pos > 0 && info->buffer[pos-1] == '\r') info->buffer[pos-1] = 0;
1198 if (pos < info->len - 1) return 1; /* EOF but something was read */
1200 /* need to enlarge the buffer */
1201 newlen = info->len + info->len / 2;
1202 if (!(newbuf = realloc( info->buffer, newlen )))
1204 set_error( STATUS_NO_MEMORY );
1207 info->buffer = newbuf;
1212 /* make sure the temp buffer holds enough space */
1213 static int get_file_tmp_space( struct file_load_info *info, size_t size )
1216 if (info->tmplen >= size) return 1;
1217 if (!(tmp = realloc( info->tmp, size )))
1219 set_error( STATUS_NO_MEMORY );
1223 info->tmplen = size;
1227 /* report an error while loading an input file */
1228 static void file_read_error( const char *err, struct file_load_info *info )
1231 fprintf( stderr, "%s:%d: %s '%s'\n", info->filename, info->line, err, info->buffer );
1233 fprintf( stderr, "<fd>:%d: %s '%s'\n", info->line, err, info->buffer );
1236 /* convert a data type tag to a value type */
1237 static int get_data_type( const char *buffer, int *type, int *parse_type )
1239 struct data_type { const char *tag; int len; int type; int parse_type; };
1241 static const struct data_type data_types[] =
1242 { /* actual type */ /* type to assume for parsing */
1243 { "\"", 1, REG_SZ, REG_SZ },
1244 { "str:\"", 5, REG_SZ, REG_SZ },
1245 { "str(2):\"", 8, REG_EXPAND_SZ, REG_SZ },
1246 { "str(7):\"", 8, REG_MULTI_SZ, REG_SZ },
1247 { "hex:", 4, REG_BINARY, REG_BINARY },
1248 { "dword:", 6, REG_DWORD, REG_DWORD },
1249 { "hex(", 4, -1, REG_BINARY },
1253 const struct data_type *ptr;
1256 for (ptr = data_types; ptr->tag; ptr++)
1258 if (strncmp( ptr->tag, buffer, ptr->len )) continue;
1259 *parse_type = ptr->parse_type;
1260 if ((*type = ptr->type) != -1) return ptr->len;
1261 /* "hex(xx):" is special */
1262 *type = (int)strtoul( buffer + 4, &end, 16 );
1263 if ((end <= buffer) || strncmp( end, "):", 2 )) return 0;
1264 return end + 2 - buffer;
1269 /* load and create a key from the input file */
1270 static struct key *load_key( struct key *base, const char *buffer,
1271 int prefix_len, struct file_load_info *info )
1274 struct unicode_str name;
1277 timeout_t modif = current_time;
1280 if (!get_file_tmp_space( info, strlen(buffer) * sizeof(WCHAR) )) return NULL;
1283 if ((res = parse_strW( info->tmp, &len, buffer, ']' )) == -1)
1285 file_read_error( "Malformed key", info );
1288 if (sscanf( buffer + res, " %u", &mod ) == 1)
1289 modif = (timeout_t)mod * TICKS_PER_SEC + ticks_1601_to_1970;
1292 while (prefix_len && *p) { if (*p++ == '\\') prefix_len--; }
1298 file_read_error( "Malformed key", info );
1301 /* empty key name, return base key */
1302 return (struct key *)grab_object( base );
1305 name.len = len - (p - info->tmp + 1) * sizeof(WCHAR);
1306 return create_key_recursive( base, &name, modif );
1309 /* load a key option from the input file */
1310 static int load_key_option( struct key *key, const char *buffer, struct file_load_info *info )
1315 if (!strncmp( buffer, "#class=", 7 ))
1318 if (*p++ != '"') return 0;
1319 if (!get_file_tmp_space( info, strlen(p) * sizeof(WCHAR) )) return 0;
1321 if (parse_strW( info->tmp, &len, p, '\"' ) == -1) return 0;
1323 if (!(key->class = memdup( info->tmp, len ))) len = 0;
1324 key->classlen = len;
1326 if (!strncmp( buffer, "#link", 5 )) key->flags |= KEY_SYMLINK;
1327 /* ignore unknown options */
1331 /* parse a comma-separated list of hex digits */
1332 static int parse_hex( unsigned char *dest, data_size_t *len, const char *buffer )
1334 const char *p = buffer;
1335 data_size_t count = 0;
1338 while (isxdigit(*p))
1340 unsigned int val = strtoul( p, &end, 16 );
1341 if (end == p || val > 0xff) return -1;
1342 if (count++ >= *len) return -1; /* dest buffer overflow */
1345 while (isspace(*p)) p++;
1347 while (isspace(*p)) p++;
1353 /* parse a value name and create the corresponding value */
1354 static struct key_value *parse_value_name( struct key *key, const char *buffer, data_size_t *len,
1355 struct file_load_info *info )
1357 struct key_value *value;
1358 struct unicode_str name;
1361 if (!get_file_tmp_space( info, strlen(buffer) * sizeof(WCHAR) )) return NULL;
1362 name.str = info->tmp;
1363 name.len = info->tmplen;
1364 if (buffer[0] == '@')
1371 int r = parse_strW( info->tmp, &name.len, buffer + 1, '\"' );
1372 if (r == -1) goto error;
1373 *len = r + 1; /* for initial quote */
1374 name.len -= sizeof(WCHAR); /* terminating null */
1376 while (isspace(buffer[*len])) (*len)++;
1377 if (buffer[*len] != '=') goto error;
1379 while (isspace(buffer[*len])) (*len)++;
1380 if (!(value = find_value( key, &name, &index ))) value = insert_value( key, &name, index );
1384 file_read_error( "Malformed value name", info );
1388 /* load a value from the input file */
1389 static int load_value( struct key *key, const char *buffer, struct file_load_info *info )
1393 int res, type, parse_type;
1394 data_size_t maxlen, len;
1395 struct key_value *value;
1397 if (!(value = parse_value_name( key, buffer, &len, info ))) return 0;
1398 if (!(res = get_data_type( buffer + len, &type, &parse_type ))) goto error;
1399 buffer += len + res;
1404 if (!get_file_tmp_space( info, strlen(buffer) * sizeof(WCHAR) )) return 0;
1406 if ((res = parse_strW( info->tmp, &len, buffer, '\"' )) == -1) goto error;
1410 dw = strtoul( buffer, NULL, 16 );
1414 case REG_BINARY: /* hex digits */
1418 maxlen = 1 + strlen(buffer) / 2; /* at least 2 chars for one hex byte */
1419 if (!get_file_tmp_space( info, len + maxlen )) return 0;
1420 if ((res = parse_hex( (unsigned char *)info->tmp + len, &maxlen, buffer )) == -1) goto error;
1423 while (isspace(*buffer)) buffer++;
1424 if (!*buffer) break;
1425 if (*buffer != '\\') goto error;
1426 if (read_next_line( info) != 1) goto error;
1427 buffer = info->buffer;
1428 while (isspace(*buffer)) buffer++;
1434 ptr = NULL; /* keep compiler quiet */
1438 if (!len) newptr = NULL;
1439 else if (!(newptr = memdup( ptr, len ))) return 0;
1441 free( value->data );
1442 value->data = newptr;
1448 file_read_error( "Malformed value", info );
1449 free( value->data );
1452 value->type = REG_NONE;
1456 /* return the length (in path elements) of name that is part of the key name */
1457 /* for instance if key is USER\foo\bar and name is foo\bar\baz, return 2 */
1458 static int get_prefix_len( struct key *key, const char *name, struct file_load_info *info )
1464 if (!get_file_tmp_space( info, strlen(name) * sizeof(WCHAR) )) return 0;
1467 if ((res = parse_strW( info->tmp, &len, name, ']' )) == -1)
1469 file_read_error( "Malformed key", info );
1472 for (p = info->tmp; *p; p++) if (*p == '\\') break;
1473 len = (p - info->tmp) * sizeof(WCHAR);
1474 for (res = 1; key != root_key; res++)
1476 if (len == key->namelen && !memicmpW( info->tmp, key->name, len / sizeof(WCHAR) )) break;
1479 if (key == root_key) res = 0; /* no matching name */
1483 /* load all the keys from the input file */
1484 /* prefix_len is the number of key name prefixes to skip, or -1 for autodetection */
1485 static void load_keys( struct key *key, const char *filename, FILE *f, int prefix_len )
1487 struct key *subkey = NULL;
1488 struct file_load_info info;
1491 info.filename = filename;
1496 if (!(info.buffer = mem_alloc( info.len ))) return;
1497 if (!(info.tmp = mem_alloc( info.tmplen )))
1499 free( info.buffer );
1503 if ((read_next_line( &info ) != 1) ||
1504 strcmp( info.buffer, "WINE REGISTRY Version 2" ))
1506 set_error( STATUS_NOT_REGISTRY_FILE );
1510 while (read_next_line( &info ) == 1)
1513 while (*p && isspace(*p)) p++;
1516 case '[': /* new key */
1517 if (subkey) release_object( subkey );
1518 if (prefix_len == -1) prefix_len = get_prefix_len( key, p + 1, &info );
1519 if (!(subkey = load_key( key, p + 1, prefix_len, &info )))
1520 file_read_error( "Error creating key", &info );
1522 case '@': /* default value */
1523 case '\"': /* value */
1524 if (subkey) load_value( subkey, p, &info );
1525 else file_read_error( "Value without key", &info );
1527 case '#': /* option */
1528 if (subkey) load_key_option( subkey, p, &info );
1530 case ';': /* comment */
1531 case 0: /* empty line */
1534 file_read_error( "Unrecognized input", &info );
1540 if (subkey) release_object( subkey );
1541 free( info.buffer );
1545 /* load a part of the registry from a file */
1546 static void load_registry( struct key *key, obj_handle_t handle )
1551 if (!(file = get_file_obj( current->process, handle, FILE_READ_DATA ))) return;
1552 fd = dup( get_file_unix_fd( file ) );
1553 release_object( file );
1556 FILE *f = fdopen( fd, "r" );
1559 load_keys( key, NULL, f, -1 );
1562 else file_set_error();
1566 /* load one of the initial registry files */
1567 static void load_init_registry_from_file( const char *filename, struct key *key )
1571 if ((f = fopen( filename, "r" )))
1573 load_keys( key, filename, f, 0 );
1575 if (get_error() == STATUS_NOT_REGISTRY_FILE)
1577 fprintf( stderr, "%s is not a valid registry file\n", filename );
1582 assert( save_branch_count < MAX_SAVE_BRANCH_INFO );
1584 save_branch_info[save_branch_count].path = filename;
1585 save_branch_info[save_branch_count++].key = (struct key *)grab_object( key );
1586 make_object_static( &key->obj );
1589 static WCHAR *format_user_registry_path( const SID *sid, struct unicode_str *path )
1591 static const WCHAR prefixW[] = {'U','s','e','r','\\','S',0};
1592 static const WCHAR formatW[] = {'-','%','u',0};
1593 WCHAR buffer[7 + 10 + 10 + 10 * SID_MAX_SUB_AUTHORITIES];
1597 strcpyW( p, prefixW );
1598 p += strlenW( prefixW );
1599 p += sprintfW( p, formatW, sid->Revision );
1600 p += sprintfW( p, formatW, MAKELONG( MAKEWORD( sid->IdentifierAuthority.Value[5],
1601 sid->IdentifierAuthority.Value[4] ),
1602 MAKEWORD( sid->IdentifierAuthority.Value[3],
1603 sid->IdentifierAuthority.Value[2] )));
1604 for (i = 0; i < sid->SubAuthorityCount; i++)
1605 p += sprintfW( p, formatW, sid->SubAuthority[i] );
1607 path->len = (p - buffer) * sizeof(WCHAR);
1608 path->str = p = memdup( buffer, path->len );
1612 /* registry initialisation */
1613 void init_registry(void)
1615 static const WCHAR HKLM[] = { 'M','a','c','h','i','n','e' };
1616 static const WCHAR HKU_default[] = { 'U','s','e','r','\\','.','D','e','f','a','u','l','t' };
1617 static const WCHAR classes[] = {'S','o','f','t','w','a','r','e','\\',
1618 'C','l','a','s','s','e','s','\\',
1619 'W','o','w','6','4','3','2','N','o','d','e'};
1620 static const struct unicode_str root_name = { NULL, 0 };
1621 static const struct unicode_str HKLM_name = { HKLM, sizeof(HKLM) };
1622 static const struct unicode_str HKU_name = { HKU_default, sizeof(HKU_default) };
1623 static const struct unicode_str classes_name = { classes, sizeof(classes) };
1625 WCHAR *current_user_path;
1626 struct unicode_str current_user_str;
1627 struct key *key, *hklm, *hkcu;
1629 /* switch to the config dir */
1631 if (fchdir( config_dir_fd ) == -1) fatal_perror( "chdir to config dir" );
1633 /* create the root key */
1634 root_key = alloc_key( &root_name, current_time );
1636 make_object_static( &root_key->obj );
1638 /* load system.reg into Registry\Machine */
1640 if (!(hklm = create_key_recursive( root_key, &HKLM_name, current_time )))
1641 fatal_error( "could not create Machine registry key\n" );
1643 load_init_registry_from_file( "system.reg", hklm );
1645 /* load userdef.reg into Registry\User\.Default */
1647 if (!(key = create_key_recursive( root_key, &HKU_name, current_time )))
1648 fatal_error( "could not create User\\.Default registry key\n" );
1650 load_init_registry_from_file( "userdef.reg", key );
1651 release_object( key );
1653 /* load user.reg into HKEY_CURRENT_USER */
1655 /* FIXME: match default user in token.c. should get from process token instead */
1656 current_user_path = format_user_registry_path( security_interactive_sid, ¤t_user_str );
1657 if (!current_user_path ||
1658 !(hkcu = create_key_recursive( root_key, ¤t_user_str, current_time )))
1659 fatal_error( "could not create HKEY_CURRENT_USER registry key\n" );
1660 free( current_user_path );
1661 load_init_registry_from_file( "user.reg", hkcu );
1663 /* set the shared flag on Software\Classes\Wow6432Node */
1664 if (sizeof(void *) > sizeof(int))
1666 if ((key = create_key_recursive( hklm, &classes_name, current_time )))
1668 key->flags |= KEY_WOWSHARE;
1669 release_object( key );
1671 /* FIXME: handle HKCU too */
1674 release_object( hklm );
1675 release_object( hkcu );
1677 /* start the periodic save timer */
1678 set_periodic_save_timer();
1680 /* go back to the server dir */
1681 if (fchdir( server_dir_fd ) == -1) fatal_perror( "chdir to server dir" );
1684 /* save a registry branch to a file */
1685 static void save_all_subkeys( struct key *key, FILE *f )
1687 fprintf( f, "WINE REGISTRY Version 2\n" );
1688 fprintf( f, ";; All keys relative to " );
1689 dump_path( key, NULL, f );
1691 save_subkeys( key, key, f );
1694 /* save a registry branch to a file handle */
1695 static void save_registry( struct key *key, obj_handle_t handle )
1700 if (key->flags & KEY_DELETED)
1702 set_error( STATUS_KEY_DELETED );
1705 if (!(file = get_file_obj( current->process, handle, FILE_WRITE_DATA ))) return;
1706 fd = dup( get_file_unix_fd( file ) );
1707 release_object( file );
1710 FILE *f = fdopen( fd, "w" );
1713 save_all_subkeys( key, f );
1714 if (fclose( f )) file_set_error();
1724 /* save a registry branch to a file */
1725 static int save_branch( struct key *key, const char *path )
1728 char *p, *tmp = NULL;
1729 int fd, count = 0, ret = 0;
1732 if (!(key->flags & KEY_DIRTY))
1734 if (debug_level > 1) dump_operation( key, NULL, "Not saving clean" );
1738 /* test the file type */
1740 if ((fd = open( path, O_WRONLY )) != -1)
1742 /* if file is not a regular file or has multiple links or is accessed
1743 * via symbolic links, write directly into it; otherwise use a temp file */
1744 if (!lstat( path, &st ) && (!S_ISREG(st.st_mode) || st.st_nlink > 1))
1752 /* create a temp file in the same directory */
1754 if (!(tmp = malloc( strlen(path) + 20 ))) goto done;
1755 strcpy( tmp, path );
1756 if ((p = strrchr( tmp, '/' ))) p++;
1760 sprintf( p, "reg%lx%04x.tmp", (long) getpid(), count++ );
1761 if ((fd = open( tmp, O_CREAT | O_EXCL | O_WRONLY, 0666 )) != -1) break;
1762 if (errno != EEXIST) goto done;
1766 /* now save to it */
1769 if (!(f = fdopen( fd, "w" )))
1771 if (tmp) unlink( tmp );
1776 if (debug_level > 1)
1778 fprintf( stderr, "%s: ", path );
1779 dump_operation( key, NULL, "saving" );
1782 save_all_subkeys( key, f );
1787 /* if successfully written, rename to final name */
1788 if (ret) ret = !rename( tmp, path );
1789 if (!ret) unlink( tmp );
1794 if (ret) make_clean( key );
1798 /* periodic saving of the registry */
1799 static void periodic_save( void *arg )
1803 if (fchdir( config_dir_fd ) == -1) return;
1804 save_timeout_user = NULL;
1805 for (i = 0; i < save_branch_count; i++)
1806 save_branch( save_branch_info[i].key, save_branch_info[i].path );
1807 if (fchdir( server_dir_fd ) == -1) fatal_perror( "chdir to server dir" );
1808 set_periodic_save_timer();
1811 /* start the periodic save timer */
1812 static void set_periodic_save_timer(void)
1814 if (save_timeout_user) remove_timeout_user( save_timeout_user );
1815 save_timeout_user = add_timeout_user( save_period, periodic_save, NULL );
1818 /* save the modified registry branches to disk */
1819 void flush_registry(void)
1823 if (fchdir( config_dir_fd ) == -1) return;
1824 for (i = 0; i < save_branch_count; i++)
1826 if (!save_branch( save_branch_info[i].key, save_branch_info[i].path ))
1828 fprintf( stderr, "wineserver: could not save registry branch to %s",
1829 save_branch_info[i].path );
1833 if (fchdir( server_dir_fd ) == -1) fatal_perror( "chdir to server dir" );
1837 /* create a registry key */
1838 DECL_HANDLER(create_key)
1840 struct key *key = NULL, *parent;
1841 struct unicode_str name, class;
1842 unsigned int access = req->access;
1844 if (!is_wow64_thread( current )) access = (access & ~KEY_WOW64_32KEY) | KEY_WOW64_64KEY;
1848 if (req->namelen > get_req_data_size())
1850 set_error( STATUS_INVALID_PARAMETER );
1853 class.str = (const WCHAR *)get_req_data() + req->namelen / sizeof(WCHAR);
1854 class.len = ((get_req_data_size() - req->namelen) / sizeof(WCHAR)) * sizeof(WCHAR);
1855 get_req_path( &name, !req->parent );
1856 if (name.str > class.str)
1858 set_error( STATUS_INVALID_PARAMETER );
1861 name.len = (class.str - name.str) * sizeof(WCHAR);
1863 /* NOTE: no access rights are required from the parent handle to create a key */
1864 if ((parent = get_parent_hkey_obj( req->parent )))
1866 if ((key = create_key( parent, &name, &class, req->options, access,
1867 req->attributes, &reply->created )))
1869 reply->hkey = alloc_handle( current->process, key, access, req->attributes );
1870 release_object( key );
1872 release_object( parent );
1876 /* open a registry key */
1877 DECL_HANDLER(open_key)
1879 struct key *key, *parent;
1880 struct unicode_str name;
1881 unsigned int access = req->access;
1883 if (!is_wow64_thread( current )) access = (access & ~KEY_WOW64_32KEY) | KEY_WOW64_64KEY;
1886 /* NOTE: no access rights are required to open the parent key, only the child key */
1887 if ((parent = get_parent_hkey_obj( req->parent )))
1889 get_req_path( &name, !req->parent );
1890 if ((key = open_key( parent, &name, access, req->attributes )))
1892 reply->hkey = alloc_handle( current->process, key, access, req->attributes );
1893 release_object( key );
1895 release_object( parent );
1899 /* delete a registry key */
1900 DECL_HANDLER(delete_key)
1904 if ((key = get_hkey_obj( req->hkey, DELETE )))
1906 delete_key( key, 0);
1907 release_object( key );
1911 /* flush a registry key */
1912 DECL_HANDLER(flush_key)
1914 struct key *key = get_hkey_obj( req->hkey, 0 );
1917 /* we don't need to do anything here with the current implementation */
1918 release_object( key );
1922 /* enumerate registry subkeys */
1923 DECL_HANDLER(enum_key)
1927 if ((key = get_hkey_obj( req->hkey,
1928 req->index == -1 ? KEY_QUERY_VALUE : KEY_ENUMERATE_SUB_KEYS )))
1930 enum_key( key, req->index, req->info_class, reply );
1931 release_object( key );
1935 /* set a value of a registry key */
1936 DECL_HANDLER(set_key_value)
1939 struct unicode_str name;
1941 if (req->namelen > get_req_data_size())
1943 set_error( STATUS_INVALID_PARAMETER );
1946 name.str = get_req_data();
1947 name.len = (req->namelen / sizeof(WCHAR)) * sizeof(WCHAR);
1949 if ((key = get_hkey_obj( req->hkey, KEY_SET_VALUE )))
1951 data_size_t datalen = get_req_data_size() - req->namelen;
1952 const char *data = (const char *)get_req_data() + req->namelen;
1954 set_value( key, &name, req->type, data, datalen );
1955 release_object( key );
1959 /* retrieve the value of a registry key */
1960 DECL_HANDLER(get_key_value)
1963 struct unicode_str name;
1966 if ((key = get_hkey_obj( req->hkey, KEY_QUERY_VALUE )))
1968 get_req_unicode_str( &name );
1969 get_value( key, &name, &reply->type, &reply->total );
1970 release_object( key );
1974 /* enumerate the value of a registry key */
1975 DECL_HANDLER(enum_key_value)
1979 if ((key = get_hkey_obj( req->hkey, KEY_QUERY_VALUE )))
1981 enum_value( key, req->index, req->info_class, reply );
1982 release_object( key );
1986 /* delete a value of a registry key */
1987 DECL_HANDLER(delete_key_value)
1990 struct unicode_str name;
1992 if ((key = get_hkey_obj( req->hkey, KEY_SET_VALUE )))
1994 get_req_unicode_str( &name );
1995 delete_value( key, &name );
1996 release_object( key );
2000 /* load a registry branch from a file */
2001 DECL_HANDLER(load_registry)
2003 struct key *key, *parent;
2004 struct token *token = thread_get_impersonation_token( current );
2005 struct unicode_str name;
2007 const LUID_AND_ATTRIBUTES privs[] =
2009 { SeBackupPrivilege, 0 },
2010 { SeRestorePrivilege, 0 },
2013 if (!token || !token_check_privileges( token, TRUE, privs,
2014 sizeof(privs)/sizeof(privs[0]), NULL ))
2016 set_error( STATUS_PRIVILEGE_NOT_HELD );
2020 if ((parent = get_parent_hkey_obj( req->hkey )))
2023 get_req_path( &name, !req->hkey );
2024 if ((key = create_key( parent, &name, NULL, 0, KEY_WOW64_64KEY, 0, &dummy )))
2026 load_registry( key, req->file );
2027 release_object( key );
2029 release_object( parent );
2033 DECL_HANDLER(unload_registry)
2036 struct token *token = thread_get_impersonation_token( current );
2038 const LUID_AND_ATTRIBUTES privs[] =
2040 { SeBackupPrivilege, 0 },
2041 { SeRestorePrivilege, 0 },
2044 if (!token || !token_check_privileges( token, TRUE, privs,
2045 sizeof(privs)/sizeof(privs[0]), NULL ))
2047 set_error( STATUS_PRIVILEGE_NOT_HELD );
2051 if ((key = get_hkey_obj( req->hkey, 0 )))
2053 delete_key( key, 1 ); /* FIXME */
2054 release_object( key );
2058 /* save a registry branch to a file */
2059 DECL_HANDLER(save_registry)
2063 if (!thread_single_check_privilege( current, &SeBackupPrivilege ))
2065 set_error( STATUS_PRIVILEGE_NOT_HELD );
2069 if ((key = get_hkey_obj( req->hkey, 0 )))
2071 save_registry( key, req->file );
2072 release_object( key );
2076 /* add a registry key change notification */
2077 DECL_HANDLER(set_registry_notification)
2080 struct event *event;
2081 struct notify *notify;
2083 key = get_hkey_obj( req->hkey, KEY_NOTIFY );
2086 event = get_event_obj( current->process, req->event, SYNCHRONIZE );
2089 notify = find_notify( key, current->process, req->hkey );
2093 release_object( notify->event );
2094 grab_object( event );
2095 notify->event = event;
2099 notify = mem_alloc( sizeof(*notify) );
2102 grab_object( event );
2103 notify->event = event;
2104 notify->subtree = req->subtree;
2105 notify->filter = req->filter;
2106 notify->hkey = req->hkey;
2107 notify->process = current->process;
2108 list_add_head( &key->notify_list, ¬ify->entry );
2111 release_object( event );
2113 release_object( key );