2 * Server-side process management
4 * Copyright (C) 1998 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 #include "wine/port.h"
32 #ifdef HAVE_SYS_SOCKET_H
33 # include <sys/socket.h>
41 #define WIN32_NO_STATUS
53 /* process structure */
55 static struct list process_list
= LIST_INIT(process_list
);
56 static int running_processes
;
58 /* process operations */
60 static void process_dump( struct object
*obj
, int verbose
);
61 static int process_signaled( struct object
*obj
, struct thread
*thread
);
62 static unsigned int process_map_access( struct object
*obj
, unsigned int access
);
63 static void process_poll_event( struct fd
*fd
, int event
);
64 static void process_destroy( struct object
*obj
);
66 static const struct object_ops process_ops
=
68 sizeof(struct process
), /* size */
69 process_dump
, /* dump */
70 add_queue
, /* add_queue */
71 remove_queue
, /* remove_queue */
72 process_signaled
, /* signaled */
73 no_satisfied
, /* satisfied */
74 no_signal
, /* signal */
75 no_get_fd
, /* get_fd */
76 process_map_access
, /* map_access */
77 no_lookup_name
, /* lookup_name */
78 no_close_handle
, /* close_handle */
79 process_destroy
/* destroy */
82 static const struct fd_ops process_fd_ops
=
84 NULL
, /* get_poll_events */
85 process_poll_event
, /* poll_event */
87 no_get_file_info
, /* get_file_info */
88 no_queue_async
, /* queue_async */
89 no_cancel_async
/* cancel async */
92 /* process startup info */
96 struct object obj
; /* object header */
97 struct list entry
; /* entry in list of startup infos */
98 int inherit_all
; /* inherit all handles from parent */
99 unsigned int create_flags
; /* creation flags */
100 int unix_pid
; /* Unix pid of new process */
101 obj_handle_t hstdin
; /* handle for stdin */
102 obj_handle_t hstdout
; /* handle for stdout */
103 obj_handle_t hstderr
; /* handle for stderr */
104 struct file
*exe_file
; /* file handle for main exe */
105 struct thread
*owner
; /* owner thread (the one that created the new process) */
106 struct process
*process
; /* created process */
107 struct thread
*thread
; /* created thread */
108 size_t data_size
; /* size of startup data */
109 void *data
; /* data for startup info */
112 static void startup_info_dump( struct object
*obj
, int verbose
);
113 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
);
114 static void startup_info_destroy( struct object
*obj
);
116 static const struct object_ops startup_info_ops
=
118 sizeof(struct startup_info
), /* size */
119 startup_info_dump
, /* dump */
120 add_queue
, /* add_queue */
121 remove_queue
, /* remove_queue */
122 startup_info_signaled
, /* signaled */
123 no_satisfied
, /* satisfied */
124 no_signal
, /* signal */
125 no_get_fd
, /* get_fd */
126 no_map_access
, /* map_access */
127 no_lookup_name
, /* lookup_name */
128 no_close_handle
, /* close_handle */
129 startup_info_destroy
/* destroy */
133 static struct list startup_info_list
= LIST_INIT(startup_info_list
);
137 void *ptr
; /* entry ptr */
138 unsigned int next
; /* next free entry */
141 static struct ptid_entry
*ptid_entries
; /* array of ptid entries */
142 static unsigned int used_ptid_entries
; /* number of entries in use */
143 static unsigned int alloc_ptid_entries
; /* number of allocated entries */
144 static unsigned int next_free_ptid
; /* next free entry */
145 static unsigned int last_free_ptid
; /* last free entry */
147 #define PTID_OFFSET 8 /* offset for first ptid value */
149 /* allocate a new process or thread id */
150 unsigned int alloc_ptid( void *ptr
)
152 struct ptid_entry
*entry
;
155 if (used_ptid_entries
< alloc_ptid_entries
)
157 id
= used_ptid_entries
+ PTID_OFFSET
;
158 entry
= &ptid_entries
[used_ptid_entries
++];
160 else if (next_free_ptid
)
163 entry
= &ptid_entries
[id
- PTID_OFFSET
];
164 if (!(next_free_ptid
= entry
->next
)) last_free_ptid
= 0;
166 else /* need to grow the array */
168 unsigned int count
= alloc_ptid_entries
+ (alloc_ptid_entries
/ 2);
169 if (!count
) count
= 64;
170 if (!(entry
= realloc( ptid_entries
, count
* sizeof(*entry
) )))
172 set_error( STATUS_NO_MEMORY
);
175 ptid_entries
= entry
;
176 alloc_ptid_entries
= count
;
177 id
= used_ptid_entries
+ PTID_OFFSET
;
178 entry
= &ptid_entries
[used_ptid_entries
++];
185 /* free a process or thread id */
186 void free_ptid( unsigned int id
)
188 struct ptid_entry
*entry
= &ptid_entries
[id
- PTID_OFFSET
];
193 /* append to end of free list so that we don't reuse it too early */
194 if (last_free_ptid
) ptid_entries
[last_free_ptid
- PTID_OFFSET
].next
= id
;
195 else next_free_ptid
= id
;
200 /* retrieve the pointer corresponding to a process or thread id */
201 void *get_ptid_entry( unsigned int id
)
203 if (id
< PTID_OFFSET
) return NULL
;
204 if (id
- PTID_OFFSET
>= used_ptid_entries
) return NULL
;
205 return ptid_entries
[id
- PTID_OFFSET
].ptr
;
208 /* return the main thread of the process */
209 struct thread
*get_process_first_thread( struct process
*process
)
211 struct list
*ptr
= list_head( &process
->thread_list
);
212 if (!ptr
) return NULL
;
213 return LIST_ENTRY( ptr
, struct thread
, proc_entry
);
216 /* set the state of the process startup info */
217 static void set_process_startup_state( struct process
*process
, enum startup_state state
)
219 if (process
->startup_state
== STARTUP_IN_PROGRESS
) process
->startup_state
= state
;
220 if (process
->startup_info
)
222 wake_up( &process
->startup_info
->obj
, 0 );
223 release_object( process
->startup_info
);
224 process
->startup_info
= NULL
;
228 /* create a new process and its main thread */
229 struct thread
*create_process( int fd
)
231 struct process
*process
;
232 struct thread
*thread
= NULL
;
235 if (!(process
= alloc_object( &process_ops
))) goto error
;
236 process
->parent
= NULL
;
237 process
->debugger
= NULL
;
238 process
->handles
= NULL
;
239 process
->msg_fd
= NULL
;
240 process
->exit_code
= STILL_ACTIVE
;
241 process
->running_threads
= 0;
242 process
->priority
= PROCESS_PRIOCLASS_NORMAL
;
243 process
->affinity
= 1;
244 process
->suspend
= 0;
245 process
->create_flags
= 0;
246 process
->console
= NULL
;
247 process
->startup_state
= STARTUP_IN_PROGRESS
;
248 process
->startup_info
= NULL
;
249 process
->idle_event
= NULL
;
250 process
->queue
= NULL
;
252 process
->ldt_copy
= NULL
;
253 process
->winstation
= 0;
254 process
->desktop
= 0;
255 process
->token
= token_create_admin();
256 list_init( &process
->thread_list
);
257 list_init( &process
->locks
);
258 list_init( &process
->classes
);
259 list_init( &process
->dlls
);
261 gettimeofday( &process
->start_time
, NULL
);
262 list_add_head( &process_list
, &process
->entry
);
264 if (!(process
->id
= process
->group_id
= alloc_ptid( process
))) goto error
;
265 if (!(process
->msg_fd
= create_anonymous_fd( &process_fd_ops
, fd
, &process
->obj
))) goto error
;
267 /* create the main thread */
268 if (pipe( request_pipe
) == -1)
273 if (send_client_fd( process
, request_pipe
[1], 0 ) == -1)
275 close( request_pipe
[0] );
276 close( request_pipe
[1] );
279 close( request_pipe
[1] );
280 if (!(thread
= create_thread( request_pipe
[0], process
))) goto error
;
282 set_fd_events( process
->msg_fd
, POLLIN
); /* start listening to events */
283 release_object( process
);
287 if (process
) release_object( process
);
288 /* if we failed to start our first process, close everything down */
289 if (!running_processes
) close_master_socket();
293 /* find the startup info for a given Unix process */
294 inline static struct startup_info
*find_startup_info( int unix_pid
)
298 LIST_FOR_EACH( ptr
, &startup_info_list
)
300 struct startup_info
*info
= LIST_ENTRY( ptr
, struct startup_info
, entry
);
301 if (info
->unix_pid
== unix_pid
) return info
;
306 /* initialize the current process and fill in the request */
307 size_t init_process( struct thread
*thread
)
309 struct process
*process
= thread
->process
;
310 struct thread
*parent_thread
= NULL
;
311 struct process
*parent
= NULL
;
312 struct startup_info
*info
;
314 if (process
->startup_info
) return process
->startup_info
->data_size
; /* already initialized */
316 if ((info
= find_startup_info( thread
->unix_pid
)))
318 if (info
->thread
) return info
->data_size
; /* already initialized */
320 info
->thread
= (struct thread
*)grab_object( thread
);
321 info
->process
= (struct process
*)grab_object( process
);
322 process
->startup_info
= (struct startup_info
*)grab_object( info
);
324 parent_thread
= info
->owner
;
325 parent
= parent_thread
->process
;
326 process
->parent
= (struct process
*)grab_object( parent
);
328 /* set the process flags */
329 process
->create_flags
= info
->create_flags
;
331 if (info
->inherit_all
) process
->handles
= copy_handle_table( process
, parent
);
334 /* create the handle table */
335 if (!process
->handles
) process
->handles
= alloc_handle_table( process
, 0 );
336 if (!process
->handles
)
338 fatal_protocol_error( thread
, "Failed to allocate handle table\n" );
342 /* connect to the window station */
343 connect_process_winstation( process
, parent_thread
);
347 /* thread will be actually suspended in init_done */
348 if (info
->create_flags
& CREATE_SUSPENDED
) thread
->suspend
++;
350 /* set the process console */
351 if (!(info
->create_flags
& (DETACHED_PROCESS
| CREATE_NEW_CONSOLE
)))
353 /* FIXME: some better error checking should be done...
354 * like if hConOut and hConIn are console handles, then they should be on the same
357 inherit_console( parent_thread
, process
, info
->inherit_all
? info
->hstdin
: 0 );
360 /* attach to the debugger if requested */
361 if (process
->create_flags
& (DEBUG_PROCESS
| DEBUG_ONLY_THIS_PROCESS
))
362 set_process_debugger( process
, parent_thread
);
363 else if (parent
->debugger
&& !(parent
->create_flags
& DEBUG_ONLY_THIS_PROCESS
))
364 set_process_debugger( process
, parent
->debugger
);
366 if (!(process
->create_flags
& CREATE_NEW_PROCESS_GROUP
))
367 process
->group_id
= parent
->group_id
;
369 return info
->data_size
;
372 /* destroy a process when its refcount is 0 */
373 static void process_destroy( struct object
*obj
)
375 struct process
*process
= (struct process
*)obj
;
376 assert( obj
->ops
== &process_ops
);
378 /* we can't have a thread remaining */
379 assert( list_empty( &process
->thread_list
));
381 set_process_startup_state( process
, STARTUP_ABORTED
);
382 if (process
->console
) release_object( process
->console
);
383 if (process
->parent
) release_object( process
->parent
);
384 if (process
->msg_fd
) release_object( process
->msg_fd
);
385 list_remove( &process
->entry
);
386 if (process
->idle_event
) release_object( process
->idle_event
);
387 if (process
->queue
) release_object( process
->queue
);
388 if (process
->id
) free_ptid( process
->id
);
389 if (process
->token
) release_object( process
->token
);
392 /* dump a process on stdout for debugging purposes */
393 static void process_dump( struct object
*obj
, int verbose
)
395 struct process
*process
= (struct process
*)obj
;
396 assert( obj
->ops
== &process_ops
);
398 fprintf( stderr
, "Process id=%04x handles=%p\n", process
->id
, process
->handles
);
401 static int process_signaled( struct object
*obj
, struct thread
*thread
)
403 struct process
*process
= (struct process
*)obj
;
404 return !process
->running_threads
;
407 static unsigned int process_map_access( struct object
*obj
, unsigned int access
)
409 if (access
& GENERIC_READ
) access
|= STANDARD_RIGHTS_READ
| SYNCHRONIZE
;
410 if (access
& GENERIC_WRITE
) access
|= STANDARD_RIGHTS_WRITE
| SYNCHRONIZE
;
411 if (access
& GENERIC_EXECUTE
) access
|= STANDARD_RIGHTS_EXECUTE
;
412 if (access
& GENERIC_ALL
) access
|= PROCESS_ALL_ACCESS
;
413 return access
& ~(GENERIC_READ
| GENERIC_WRITE
| GENERIC_EXECUTE
| GENERIC_ALL
);
416 static void process_poll_event( struct fd
*fd
, int event
)
418 struct process
*process
= get_fd_user( fd
);
419 assert( process
->obj
.ops
== &process_ops
);
421 if (event
& (POLLERR
| POLLHUP
)) set_fd_events( fd
, -1 );
422 else if (event
& POLLIN
) receive_fd( process
);
425 static void startup_info_destroy( struct object
*obj
)
427 struct startup_info
*info
= (struct startup_info
*)obj
;
428 assert( obj
->ops
== &startup_info_ops
);
429 list_remove( &info
->entry
);
430 if (info
->data
) free( info
->data
);
431 if (info
->exe_file
) release_object( info
->exe_file
);
432 if (info
->process
) release_object( info
->process
);
433 if (info
->thread
) release_object( info
->thread
);
434 if (info
->owner
) release_object( info
->owner
);
437 static void startup_info_dump( struct object
*obj
, int verbose
)
439 struct startup_info
*info
= (struct startup_info
*)obj
;
440 assert( obj
->ops
== &startup_info_ops
);
442 fprintf( stderr
, "Startup info flags=%x in=%p out=%p err=%p\n",
443 info
->create_flags
, info
->hstdin
, info
->hstdout
, info
->hstderr
);
446 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
)
448 struct startup_info
*info
= (struct startup_info
*)obj
;
449 return info
->process
&& info
->process
->startup_state
!= STARTUP_IN_PROGRESS
;
452 /* get a process from an id (and increment the refcount) */
453 struct process
*get_process_from_id( process_id_t id
)
455 struct object
*obj
= get_ptid_entry( id
);
457 if (obj
&& obj
->ops
== &process_ops
) return (struct process
*)grab_object( obj
);
458 set_error( STATUS_INVALID_PARAMETER
);
462 /* get a process from a handle (and increment the refcount) */
463 struct process
*get_process_from_handle( obj_handle_t handle
, unsigned int access
)
465 return (struct process
*)get_handle_obj( current
->process
, handle
,
466 access
, &process_ops
);
469 /* find a dll from its base address */
470 static inline struct process_dll
*find_process_dll( struct process
*process
, void *base
)
472 struct process_dll
*dll
;
474 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
476 if (dll
->base
== base
) return dll
;
481 /* add a dll to a process list */
482 static struct process_dll
*process_load_dll( struct process
*process
, struct file
*file
,
483 void *base
, const WCHAR
*filename
, size_t name_len
)
485 struct process_dll
*dll
;
487 /* make sure we don't already have one with the same base address */
488 if (find_process_dll( process
, base
))
490 set_error( STATUS_INVALID_PARAMETER
);
494 if ((dll
= mem_alloc( sizeof(*dll
) )))
498 dll
->filename
= NULL
;
499 dll
->namelen
= name_len
;
500 if (name_len
&& !(dll
->filename
= memdup( filename
, name_len
)))
505 if (file
) dll
->file
= (struct file
*)grab_object( file
);
506 list_add_tail( &process
->dlls
, &dll
->entry
);
511 /* remove a dll from a process list */
512 static void process_unload_dll( struct process
*process
, void *base
)
514 struct process_dll
*dll
= find_process_dll( process
, base
);
516 if (dll
&& (&dll
->entry
!= list_head( &process
->dlls
))) /* main exe can't be unloaded */
518 if (dll
->file
) release_object( dll
->file
);
519 if (dll
->filename
) free( dll
->filename
);
520 list_remove( &dll
->entry
);
522 generate_debug_event( current
, UNLOAD_DLL_DEBUG_EVENT
, base
);
524 else set_error( STATUS_INVALID_PARAMETER
);
527 /* kill all processes */
528 void kill_all_processes( struct process
*skip
, int exit_code
)
532 struct process
*process
;
534 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
536 if (process
== skip
) continue;
537 if (process
->running_threads
) break;
539 if (&process
->entry
== &process_list
) break; /* no process found */
540 kill_process( process
, NULL
, exit_code
);
544 /* kill all processes being attached to a console renderer */
545 void kill_console_processes( struct thread
*renderer
, int exit_code
)
547 for (;;) /* restart from the beginning of the list every time */
549 struct process
*process
;
551 /* find the first process being attached to 'renderer' and still running */
552 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
554 if (process
== renderer
->process
) continue;
555 if (!process
->running_threads
) continue;
556 if (process
->console
&& process
->console
->renderer
== renderer
) break;
558 if (&process
->entry
== &process_list
) break; /* no process found */
559 kill_process( process
, NULL
, exit_code
);
563 /* a process has been killed (i.e. its last thread died) */
564 static void process_killed( struct process
*process
)
566 struct handle_table
*handles
;
569 assert( list_empty( &process
->thread_list
));
570 gettimeofday( &process
->end_time
, NULL
);
571 close_process_desktop( process
);
572 handles
= process
->handles
;
573 process
->handles
= NULL
;
574 if (handles
) release_object( handles
);
576 /* close the console attached to this process, if any */
577 free_console( process
);
579 while ((ptr
= list_head( &process
->dlls
)))
581 struct process_dll
*dll
= LIST_ENTRY( ptr
, struct process_dll
, entry
);
582 if (dll
->file
) release_object( dll
->file
);
583 if (dll
->filename
) free( dll
->filename
);
584 list_remove( &dll
->entry
);
587 destroy_process_classes( process
);
588 remove_process_locks( process
);
589 set_process_startup_state( process
, STARTUP_ABORTED
);
590 wake_up( &process
->obj
, 0 );
591 if (!--running_processes
) close_master_socket();
594 /* add a thread to a process running threads list */
595 void add_process_thread( struct process
*process
, struct thread
*thread
)
597 list_add_head( &process
->thread_list
, &thread
->proc_entry
);
598 if (!process
->running_threads
++) running_processes
++;
599 grab_object( thread
);
602 /* remove a thread from a process running threads list */
603 void remove_process_thread( struct process
*process
, struct thread
*thread
)
605 assert( process
->running_threads
> 0 );
606 assert( !list_empty( &process
->thread_list
));
608 list_remove( &thread
->proc_entry
);
610 if (!--process
->running_threads
)
612 /* we have removed the last running thread, exit the process */
613 process
->exit_code
= thread
->exit_code
;
614 generate_debug_event( thread
, EXIT_PROCESS_DEBUG_EVENT
, process
);
615 process_killed( process
);
617 else generate_debug_event( thread
, EXIT_THREAD_DEBUG_EVENT
, thread
);
618 release_object( thread
);
621 /* suspend all the threads of a process */
622 void suspend_process( struct process
*process
)
624 if (!process
->suspend
++)
626 struct list
*ptr
, *next
;
628 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
630 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
631 if (!thread
->suspend
) stop_thread( thread
);
636 /* resume all the threads of a process */
637 void resume_process( struct process
*process
)
639 assert (process
->suspend
> 0);
640 if (!--process
->suspend
)
642 struct list
*ptr
, *next
;
644 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
646 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
647 if (!thread
->suspend
) wake_thread( thread
);
652 /* kill a process on the spot */
653 void kill_process( struct process
*process
, struct thread
*skip
, int exit_code
)
655 struct list
*ptr
, *next
;
657 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
659 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
661 if (exit_code
) thread
->exit_code
= exit_code
;
662 if (thread
!= skip
) kill_thread( thread
, 1 );
666 /* kill all processes being debugged by a given thread */
667 void kill_debugged_processes( struct thread
*debugger
, int exit_code
)
669 for (;;) /* restart from the beginning of the list every time */
671 struct process
*process
;
673 /* find the first process being debugged by 'debugger' and still running */
674 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
676 if (!process
->running_threads
) continue;
677 if (process
->debugger
== debugger
) break;
679 if (&process
->entry
== &process_list
) break; /* no process found */
680 process
->debugger
= NULL
;
681 kill_process( process
, NULL
, exit_code
);
686 /* detach a debugger from all its debuggees */
687 void detach_debugged_processes( struct thread
*debugger
)
689 struct process
*process
;
691 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
693 if (process
->debugger
== debugger
&& process
->running_threads
)
695 debugger_detach( process
, debugger
);
701 void enum_processes( int (*cb
)(struct process
*, void*), void *user
)
703 struct list
*ptr
, *next
;
705 LIST_FOR_EACH_SAFE( ptr
, next
, &process_list
)
707 struct process
*process
= LIST_ENTRY( ptr
, struct process
, entry
);
708 if ((cb
)(process
, user
)) break;
713 /* read data from a process memory space */
714 /* len is the total size (in ints) */
715 static int read_process_memory( struct process
*process
, const int *addr
, size_t len
, int *dest
)
717 struct thread
*thread
= get_process_first_thread( process
);
719 assert( !((unsigned int)addr
% sizeof(int)) ); /* address must be aligned */
721 if (!thread
) /* process is dead */
723 set_error( STATUS_ACCESS_DENIED
);
726 if (suspend_for_ptrace( thread
))
730 if (read_thread_int( thread
, addr
++, dest
++ ) == -1) break;
733 resume_after_ptrace( thread
);
738 /* make sure we can write to the whole address range */
739 /* len is the total size (in ints) */
740 static int check_process_write_access( struct thread
*thread
, int *addr
, size_t len
)
742 int page
= get_page_size() / sizeof(int);
746 if (write_thread_int( thread
, addr
, 0, 0 ) == -1) return 0;
747 if (len
<= page
) break;
751 return (write_thread_int( thread
, addr
+ len
- 1, 0, 0 ) != -1);
754 /* write data to a process memory space */
755 /* len is the total size (in ints), max is the size we can actually read from the input buffer */
756 /* we check the total size for write permissions */
757 static int write_process_memory( struct process
*process
, int *addr
, size_t len
,
758 unsigned int first_mask
, unsigned int last_mask
, const int *src
)
760 struct thread
*thread
= get_process_first_thread( process
);
763 assert( !((unsigned int)addr
% sizeof(int) )); /* address must be aligned */
765 if (!thread
) /* process is dead */
767 set_error( STATUS_ACCESS_DENIED
);
770 if (suspend_for_ptrace( thread
))
772 if (!check_process_write_access( thread
, addr
, len
))
774 set_error( STATUS_ACCESS_DENIED
);
777 /* first word is special */
780 if (write_thread_int( thread
, addr
++, *src
++, first_mask
) == -1) goto done
;
783 else last_mask
&= first_mask
;
787 if (write_thread_int( thread
, addr
++, *src
++, ~0 ) == -1) goto done
;
791 /* last word is special too */
792 if (write_thread_int( thread
, addr
, *src
, last_mask
) == -1) goto done
;
796 resume_after_ptrace( thread
);
801 /* set the debugged flag in the process PEB */
802 int set_process_debug_flag( struct process
*process
, int flag
)
804 int mask
= 0, data
= 0;
806 /* BeingDebugged flag is the byte at offset 2 in the PEB */
807 memset( (char *)&mask
+ 2, 0xff, 1 );
808 memset( (char *)&data
+ 2, flag
, 1 );
809 return write_process_memory( process
, process
->peb
, 1, mask
, mask
, &data
);
812 /* take a snapshot of currently running processes */
813 struct process_snapshot
*process_snap( int *count
)
815 struct process_snapshot
*snapshot
, *ptr
;
816 struct process
*process
;
817 if (!running_processes
) return NULL
;
818 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * running_processes
)))
821 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
823 if (!process
->running_threads
) continue;
824 ptr
->process
= process
;
825 ptr
->threads
= process
->running_threads
;
826 ptr
->count
= process
->obj
.refcount
;
827 ptr
->priority
= process
->priority
;
828 ptr
->handles
= get_handle_table_count(process
);
829 grab_object( process
);
832 *count
= running_processes
;
836 /* take a snapshot of the modules of a process */
837 struct module_snapshot
*module_snap( struct process
*process
, int *count
)
839 struct module_snapshot
*snapshot
, *ptr
;
840 struct process_dll
*dll
;
843 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
) total
++;
844 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * total
))) return NULL
;
847 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
849 ptr
->base
= dll
->base
;
850 ptr
->size
= dll
->size
;
851 ptr
->namelen
= dll
->namelen
;
852 ptr
->filename
= memdup( dll
->filename
, dll
->namelen
);
860 /* create a new process */
861 DECL_HANDLER(new_process
)
863 struct startup_info
*info
;
865 /* build the startup info for a new process */
866 if (!(info
= alloc_object( &startup_info_ops
))) return;
867 list_add_head( &startup_info_list
, &info
->entry
);
868 info
->inherit_all
= req
->inherit_all
;
869 info
->create_flags
= req
->create_flags
;
870 info
->unix_pid
= req
->unix_pid
;
871 info
->hstdin
= req
->hstdin
;
872 info
->hstdout
= req
->hstdout
;
873 info
->hstderr
= req
->hstderr
;
874 info
->exe_file
= NULL
;
875 info
->owner
= (struct thread
*)grab_object( current
);
876 info
->process
= NULL
;
878 info
->data_size
= get_req_data_size();
882 !(info
->exe_file
= get_file_obj( current
->process
, req
->exe_file
, FILE_READ_DATA
)))
885 if (!(info
->data
= memdup( get_req_data(), info
->data_size
))) goto done
;
886 reply
->info
= alloc_handle( current
->process
, info
, SYNCHRONIZE
, 0 );
889 release_object( info
);
892 /* Retrieve information about a newly started process */
893 DECL_HANDLER(get_new_process_info
)
895 struct startup_info
*info
;
897 if ((info
= (struct startup_info
*)get_handle_obj( current
->process
, req
->info
,
898 0, &startup_info_ops
)))
900 reply
->pid
= get_process_id( info
->process
);
901 reply
->tid
= get_thread_id( info
->thread
);
902 reply
->phandle
= alloc_handle( current
->process
, info
->process
,
903 req
->process_access
, req
->process_attr
);
904 reply
->thandle
= alloc_handle( current
->process
, info
->thread
,
905 req
->thread_access
, req
->thread_attr
);
906 reply
->success
= is_process_init_done( info
->process
);
907 release_object( info
);
919 /* Retrieve the new process startup info */
920 DECL_HANDLER(get_startup_info
)
922 struct process
*process
= current
->process
;
923 struct startup_info
*info
= process
->startup_info
;
928 if (info
->exe_file
&&
929 !(reply
->exe_file
= alloc_handle( process
, info
->exe_file
, GENERIC_READ
, 0 ))) return;
931 if (!info
->inherit_all
&& !(info
->create_flags
& CREATE_NEW_CONSOLE
))
933 struct process
*parent_process
= info
->owner
->process
;
934 reply
->hstdin
= duplicate_handle( parent_process
, info
->hstdin
, process
,
935 0, OBJ_INHERIT
, DUPLICATE_SAME_ACCESS
);
936 reply
->hstdout
= duplicate_handle( parent_process
, info
->hstdout
, process
,
937 0, OBJ_INHERIT
, DUPLICATE_SAME_ACCESS
);
938 reply
->hstderr
= duplicate_handle( parent_process
, info
->hstderr
, process
,
939 0, OBJ_INHERIT
, DUPLICATE_SAME_ACCESS
);
940 /* some handles above may have been invalid; this is not an error */
941 if (get_error() == STATUS_INVALID_HANDLE
||
942 get_error() == STATUS_OBJECT_TYPE_MISMATCH
) clear_error();
946 reply
->hstdin
= info
->hstdin
;
947 reply
->hstdout
= info
->hstdout
;
948 reply
->hstderr
= info
->hstderr
;
951 /* we return the data directly without making a copy so this can only be called once */
952 size
= info
->data_size
;
953 if (size
> get_reply_max_size()) size
= get_reply_max_size();
954 set_reply_data_ptr( info
->data
, size
);
959 /* signal the end of the process initialization */
960 DECL_HANDLER(init_process_done
)
962 struct process_dll
*dll
;
963 struct process
*process
= current
->process
;
965 if (is_process_init_done(process
))
967 fatal_protocol_error( current
, "init_process_done: called twice\n" );
970 if (!(dll
= find_process_dll( process
, req
->module
)))
972 set_error( STATUS_DLL_NOT_FOUND
);
976 /* main exe is the first in the dll list */
977 list_remove( &dll
->entry
);
978 list_add_head( &process
->dlls
, &dll
->entry
);
980 generate_startup_debug_events( process
, req
->entry
);
981 set_process_startup_state( process
, STARTUP_DONE
);
983 if (req
->gui
) process
->idle_event
= create_event( NULL
, NULL
, 0, 1, 0 );
984 if (current
->suspend
+ process
->suspend
> 0) stop_thread( current
);
985 if (process
->debugger
) set_process_debug_flag( process
, 1 );
988 /* open a handle to a process */
989 DECL_HANDLER(open_process
)
991 struct process
*process
= get_process_from_id( req
->pid
);
995 reply
->handle
= alloc_handle( current
->process
, process
, req
->access
, req
->attributes
);
996 release_object( process
);
1000 /* terminate a process */
1001 DECL_HANDLER(terminate_process
)
1003 struct process
*process
;
1005 if ((process
= get_process_from_handle( req
->handle
, PROCESS_TERMINATE
)))
1007 reply
->self
= (current
->process
== process
);
1008 kill_process( process
, current
, req
->exit_code
);
1009 release_object( process
);
1013 /* fetch information about a process */
1014 DECL_HANDLER(get_process_info
)
1016 struct process
*process
;
1018 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1020 reply
->pid
= get_process_id( process
);
1021 reply
->ppid
= process
->parent
? get_process_id( process
->parent
) : 0;
1022 reply
->exit_code
= process
->exit_code
;
1023 reply
->priority
= process
->priority
;
1024 reply
->affinity
= process
->affinity
;
1025 reply
->peb
= process
->peb
;
1026 release_object( process
);
1030 /* set information about a process */
1031 DECL_HANDLER(set_process_info
)
1033 struct process
*process
;
1035 if ((process
= get_process_from_handle( req
->handle
, PROCESS_SET_INFORMATION
)))
1037 if (req
->mask
& SET_PROCESS_INFO_PRIORITY
) process
->priority
= req
->priority
;
1038 if (req
->mask
& SET_PROCESS_INFO_AFFINITY
)
1040 if (req
->affinity
!= 1) set_error( STATUS_INVALID_PARAMETER
);
1041 else process
->affinity
= req
->affinity
;
1043 release_object( process
);
1047 /* read data from a process address space */
1048 DECL_HANDLER(read_process_memory
)
1050 struct process
*process
;
1051 size_t len
= get_reply_max_size();
1053 if (!(process
= get_process_from_handle( req
->handle
, PROCESS_VM_READ
))) return;
1057 unsigned int start_offset
= (unsigned int)req
->addr
% sizeof(int);
1058 unsigned int nb_ints
= (len
+ start_offset
+ sizeof(int) - 1) / sizeof(int);
1059 const int *start
= (int *)((char *)req
->addr
- start_offset
);
1060 int *buffer
= mem_alloc( nb_ints
* sizeof(int) );
1063 if (read_process_memory( process
, start
, nb_ints
, buffer
))
1065 /* move start of requested data to start of buffer */
1066 if (start_offset
) memmove( buffer
, (char *)buffer
+ start_offset
, len
);
1067 set_reply_data_ptr( buffer
, len
);
1069 else free( buffer
);
1072 release_object( process
);
1075 /* write data to a process address space */
1076 DECL_HANDLER(write_process_memory
)
1078 struct process
*process
;
1080 if ((process
= get_process_from_handle( req
->handle
, PROCESS_VM_WRITE
)))
1082 size_t len
= get_req_data_size();
1083 if ((len
% sizeof(int)) || ((unsigned int)req
->addr
% sizeof(int)))
1084 set_error( STATUS_INVALID_PARAMETER
);
1087 if (len
) write_process_memory( process
, req
->addr
, len
/ sizeof(int),
1088 req
->first_mask
, req
->last_mask
, get_req_data() );
1090 release_object( process
);
1094 /* notify the server that a dll has been loaded */
1095 DECL_HANDLER(load_dll
)
1097 struct process_dll
*dll
;
1098 struct file
*file
= NULL
;
1100 if (req
->handle
&& !(file
= get_file_obj( current
->process
, req
->handle
, FILE_READ_DATA
)))
1103 if ((dll
= process_load_dll( current
->process
, file
, req
->base
,
1104 get_req_data(), get_req_data_size() )))
1106 dll
->size
= req
->size
;
1107 dll
->dbg_offset
= req
->dbg_offset
;
1108 dll
->dbg_size
= req
->dbg_size
;
1109 dll
->name
= req
->name
;
1110 /* only generate event if initialization is done */
1111 if (is_process_init_done( current
->process
))
1112 generate_debug_event( current
, LOAD_DLL_DEBUG_EVENT
, dll
);
1114 if (file
) release_object( file
);
1117 /* notify the server that a dll is being unloaded */
1118 DECL_HANDLER(unload_dll
)
1120 process_unload_dll( current
->process
, req
->base
);
1123 /* retrieve information about a module in a process */
1124 DECL_HANDLER(get_dll_info
)
1126 struct process
*process
;
1128 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1130 struct process_dll
*dll
= find_process_dll( process
, req
->base_address
);
1134 reply
->size
= dll
->size
;
1135 reply
->entry_point
= NULL
; /* FIXME */
1138 size_t len
= min( dll
->namelen
, get_reply_max_size() );
1139 set_reply_data( dll
->filename
, len
);
1143 set_error( STATUS_DLL_NOT_FOUND
);
1145 release_object( process
);
1149 /* wait for a process to start waiting on input */
1150 /* FIXME: only returns event for now, wait is done in the client */
1151 DECL_HANDLER(wait_input_idle
)
1153 struct process
*process
;
1156 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1158 if (process
->idle_event
&& process
!= current
->process
)
1159 reply
->event
= alloc_handle( current
->process
, process
->idle_event
,
1160 EVENT_ALL_ACCESS
, 0 );
1161 release_object( process
);