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>
52 /* process structure */
54 static struct list process_list
= LIST_INIT(process_list
);
55 static int running_processes
;
57 /* process operations */
59 static void process_dump( struct object
*obj
, int verbose
);
60 static int process_signaled( struct object
*obj
, struct thread
*thread
);
61 static void process_poll_event( struct fd
*fd
, int event
);
62 static void process_destroy( struct object
*obj
);
64 static const struct object_ops process_ops
=
66 sizeof(struct process
), /* size */
67 process_dump
, /* dump */
68 add_queue
, /* add_queue */
69 remove_queue
, /* remove_queue */
70 process_signaled
, /* signaled */
71 no_satisfied
, /* satisfied */
72 no_signal
, /* signal */
73 no_get_fd
, /* get_fd */
74 no_close_handle
, /* close_handle */
75 process_destroy
/* destroy */
78 static const struct fd_ops process_fd_ops
=
80 NULL
, /* get_poll_events */
81 process_poll_event
, /* poll_event */
83 no_get_file_info
, /* get_file_info */
84 no_queue_async
, /* queue_async */
85 no_cancel_async
/* cancel async */
88 /* process startup info */
92 struct object obj
; /* object header */
93 struct list entry
; /* entry in list of startup infos */
94 int inherit_all
; /* inherit all handles from parent */
95 int create_flags
; /* creation flags */
96 int unix_pid
; /* Unix pid of new process */
97 obj_handle_t hstdin
; /* handle for stdin */
98 obj_handle_t hstdout
; /* handle for stdout */
99 obj_handle_t hstderr
; /* handle for stderr */
100 struct file
*exe_file
; /* file handle for main exe */
101 struct thread
*owner
; /* owner thread (the one that created the new process) */
102 struct process
*process
; /* created process */
103 struct thread
*thread
; /* created thread */
104 size_t data_size
; /* size of startup data */
105 void *data
; /* data for startup info */
108 static void startup_info_dump( struct object
*obj
, int verbose
);
109 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
);
110 static void startup_info_destroy( struct object
*obj
);
112 static const struct object_ops startup_info_ops
=
114 sizeof(struct startup_info
), /* size */
115 startup_info_dump
, /* dump */
116 add_queue
, /* add_queue */
117 remove_queue
, /* remove_queue */
118 startup_info_signaled
, /* signaled */
119 no_satisfied
, /* satisfied */
120 no_signal
, /* signal */
121 no_get_fd
, /* get_fd */
122 no_close_handle
, /* close_handle */
123 startup_info_destroy
/* destroy */
127 static struct list startup_info_list
= LIST_INIT(startup_info_list
);
131 void *ptr
; /* entry ptr */
132 unsigned int next
; /* next free entry */
135 static struct ptid_entry
*ptid_entries
; /* array of ptid entries */
136 static unsigned int used_ptid_entries
; /* number of entries in use */
137 static unsigned int alloc_ptid_entries
; /* number of allocated entries */
138 static unsigned int next_free_ptid
; /* next free entry */
139 static unsigned int last_free_ptid
; /* last free entry */
141 #define PTID_OFFSET 8 /* offset for first ptid value */
143 /* allocate a new process or thread id */
144 unsigned int alloc_ptid( void *ptr
)
146 struct ptid_entry
*entry
;
149 if (used_ptid_entries
< alloc_ptid_entries
)
151 id
= used_ptid_entries
+ PTID_OFFSET
;
152 entry
= &ptid_entries
[used_ptid_entries
++];
154 else if (next_free_ptid
)
157 entry
= &ptid_entries
[id
- PTID_OFFSET
];
158 if (!(next_free_ptid
= entry
->next
)) last_free_ptid
= 0;
160 else /* need to grow the array */
162 unsigned int count
= alloc_ptid_entries
+ (alloc_ptid_entries
/ 2);
163 if (!count
) count
= 64;
164 if (!(entry
= realloc( ptid_entries
, count
* sizeof(*entry
) )))
166 set_error( STATUS_NO_MEMORY
);
169 ptid_entries
= entry
;
170 alloc_ptid_entries
= count
;
171 id
= used_ptid_entries
+ PTID_OFFSET
;
172 entry
= &ptid_entries
[used_ptid_entries
++];
179 /* free a process or thread id */
180 void free_ptid( unsigned int id
)
182 struct ptid_entry
*entry
= &ptid_entries
[id
- PTID_OFFSET
];
187 /* append to end of free list so that we don't reuse it too early */
188 if (last_free_ptid
) ptid_entries
[last_free_ptid
- PTID_OFFSET
].next
= id
;
189 else next_free_ptid
= id
;
194 /* retrieve the pointer corresponding to a process or thread id */
195 void *get_ptid_entry( unsigned int id
)
197 if (id
< PTID_OFFSET
) return NULL
;
198 if (id
- PTID_OFFSET
>= used_ptid_entries
) return NULL
;
199 return ptid_entries
[id
- PTID_OFFSET
].ptr
;
202 /* return the main thread of the process */
203 struct thread
*get_process_first_thread( struct process
*process
)
205 struct list
*ptr
= list_head( &process
->thread_list
);
206 if (!ptr
) return NULL
;
207 return LIST_ENTRY( ptr
, struct thread
, proc_entry
);
210 /* set the state of the process startup info */
211 static void set_process_startup_state( struct process
*process
, enum startup_state state
)
213 if (process
->startup_state
== STARTUP_IN_PROGRESS
) process
->startup_state
= state
;
214 if (process
->startup_info
)
216 wake_up( &process
->startup_info
->obj
, 0 );
217 release_object( process
->startup_info
);
218 process
->startup_info
= NULL
;
222 /* set the console and stdio handles for a newly created process */
223 static int set_process_console( struct process
*process
, struct thread
*parent_thread
,
224 struct startup_info
*info
, struct init_process_reply
*reply
)
228 if (!(process
->create_flags
& (DETACHED_PROCESS
| CREATE_NEW_CONSOLE
)))
230 /* FIXME: some better error checking should be done...
231 * like if hConOut and hConIn are console handles, then they should be on the same
234 inherit_console( parent_thread
, process
, info
->inherit_all
? info
->hstdin
: 0 );
236 if (!info
->inherit_all
&& !(process
->create_flags
& CREATE_NEW_CONSOLE
))
238 reply
->hstdin
= duplicate_handle( parent_thread
->process
, info
->hstdin
, process
,
239 0, TRUE
, DUPLICATE_SAME_ACCESS
);
240 reply
->hstdout
= duplicate_handle( parent_thread
->process
, info
->hstdout
, process
,
241 0, TRUE
, DUPLICATE_SAME_ACCESS
);
242 reply
->hstderr
= duplicate_handle( parent_thread
->process
, info
->hstderr
, process
,
243 0, TRUE
, DUPLICATE_SAME_ACCESS
);
247 reply
->hstdin
= info
->hstdin
;
248 reply
->hstdout
= info
->hstdout
;
249 reply
->hstderr
= info
->hstderr
;
252 else reply
->hstdin
= reply
->hstdout
= reply
->hstderr
= 0;
253 /* some handles above may have been invalid; this is not an error */
254 if (get_error() == STATUS_INVALID_HANDLE
||
255 get_error() == STATUS_OBJECT_TYPE_MISMATCH
) clear_error();
259 /* create a new process and its main thread */
260 struct thread
*create_process( int fd
)
262 struct process
*process
;
263 struct thread
*thread
= NULL
;
266 if (!(process
= alloc_object( &process_ops
))) goto error
;
267 process
->parent
= NULL
;
268 process
->debugger
= NULL
;
269 process
->handles
= NULL
;
270 process
->msg_fd
= NULL
;
271 process
->exit_code
= STILL_ACTIVE
;
272 process
->running_threads
= 0;
273 process
->priority
= NORMAL_PRIORITY_CLASS
;
274 process
->affinity
= 1;
275 process
->suspend
= 0;
276 process
->create_flags
= 0;
277 process
->console
= NULL
;
278 process
->startup_state
= STARTUP_IN_PROGRESS
;
279 process
->startup_info
= NULL
;
280 process
->idle_event
= NULL
;
281 process
->queue
= NULL
;
283 process
->ldt_copy
= NULL
;
284 process
->winstation
= 0;
285 process
->desktop
= 0;
286 process
->exe
.file
= NULL
;
287 process
->exe
.dbg_offset
= 0;
288 process
->exe
.dbg_size
= 0;
289 process
->exe
.namelen
= 0;
290 process
->exe
.filename
= NULL
;
291 process
->group_id
= 0;
292 process
->token
= token_create_admin();
293 list_init( &process
->thread_list
);
294 list_init( &process
->locks
);
295 list_init( &process
->classes
);
296 list_init( &process
->dlls
);
298 gettimeofday( &process
->start_time
, NULL
);
299 list_add_head( &process_list
, &process
->entry
);
301 if (!(process
->id
= alloc_ptid( process
))) goto error
;
302 if (!(process
->msg_fd
= create_anonymous_fd( &process_fd_ops
, fd
, &process
->obj
))) goto error
;
304 /* create the main thread */
305 if (pipe( request_pipe
) == -1)
310 if (send_client_fd( process
, request_pipe
[1], 0 ) == -1)
312 close( request_pipe
[0] );
313 close( request_pipe
[1] );
316 close( request_pipe
[1] );
317 if (!(thread
= create_thread( request_pipe
[0], process
))) goto error
;
319 set_fd_events( process
->msg_fd
, POLLIN
); /* start listening to events */
320 release_object( process
);
324 if (process
) release_object( process
);
325 /* if we failed to start our first process, close everything down */
326 if (!running_processes
) close_master_socket();
330 /* find the startup info for a given Unix process */
331 inline static struct startup_info
*find_startup_info( int unix_pid
)
335 LIST_FOR_EACH( ptr
, &startup_info_list
)
337 struct startup_info
*info
= LIST_ENTRY( ptr
, struct startup_info
, entry
);
338 if (info
->unix_pid
== unix_pid
) return info
;
343 /* initialize the current process and fill in the request */
344 static struct startup_info
*init_process( struct init_process_reply
*reply
)
346 struct process
*process
= current
->process
;
347 struct thread
*parent_thread
= NULL
;
348 struct process
*parent
= NULL
;
349 struct startup_info
*info
= find_startup_info( current
->unix_pid
);
355 fatal_protocol_error( current
, "init_process: called twice?\n" );
358 parent_thread
= info
->owner
;
359 parent
= parent_thread
->process
;
360 process
->parent
= (struct process
*)grab_object( parent
);
363 /* set the process flags */
364 process
->create_flags
= info
? info
->create_flags
: 0;
366 /* create the handle table */
367 if (info
&& info
->inherit_all
)
368 process
->handles
= copy_handle_table( process
, parent
);
370 process
->handles
= alloc_handle_table( process
, 0 );
371 if (!process
->handles
) return NULL
;
373 /* retrieve the main exe file */
375 if (info
&& info
->exe_file
)
377 process
->exe
.file
= (struct file
*)grab_object( info
->exe_file
);
378 if (!(reply
->exe_file
= alloc_handle( process
, process
->exe
.file
, GENERIC_READ
, 0 )))
382 /* connect to the window station and desktop */
383 connect_process_winstation( process
, NULL
, 0 );
384 connect_process_desktop( process
, NULL
, 0 );
385 current
->desktop
= process
->desktop
;
387 /* set the process console */
388 if (!set_process_console( process
, parent_thread
, info
, reply
)) return NULL
;
390 process
->group_id
= get_process_id( process
);
393 /* attach to the debugger if requested */
394 if (process
->create_flags
& (DEBUG_PROCESS
| DEBUG_ONLY_THIS_PROCESS
))
395 set_process_debugger( process
, parent_thread
);
396 else if (parent
->debugger
&& !(parent
->create_flags
& DEBUG_ONLY_THIS_PROCESS
))
397 set_process_debugger( process
, parent
->debugger
);
398 if (!(process
->create_flags
& CREATE_NEW_PROCESS_GROUP
))
399 process
->group_id
= parent
->group_id
;
402 /* thread will be actually suspended in init_done */
403 if (process
->create_flags
& CREATE_SUSPENDED
) current
->suspend
++;
407 reply
->info_size
= info
->data_size
;
408 info
->process
= (struct process
*)grab_object( process
);
409 info
->thread
= (struct thread
*)grab_object( current
);
411 reply
->create_flags
= process
->create_flags
;
412 reply
->server_start
= server_start_ticks
;
413 return info
? (struct startup_info
*)grab_object( info
) : NULL
;
416 /* destroy a process when its refcount is 0 */
417 static void process_destroy( struct object
*obj
)
419 struct process
*process
= (struct process
*)obj
;
420 assert( obj
->ops
== &process_ops
);
422 /* we can't have a thread remaining */
423 assert( list_empty( &process
->thread_list
));
425 set_process_startup_state( process
, STARTUP_ABORTED
);
426 if (process
->console
) release_object( process
->console
);
427 if (process
->parent
) release_object( process
->parent
);
428 if (process
->msg_fd
) release_object( process
->msg_fd
);
429 list_remove( &process
->entry
);
430 if (process
->idle_event
) release_object( process
->idle_event
);
431 if (process
->queue
) release_object( process
->queue
);
432 if (process
->exe
.file
) release_object( process
->exe
.file
);
433 if (process
->exe
.filename
) free( process
->exe
.filename
);
434 if (process
->id
) free_ptid( process
->id
);
435 if (process
->token
) release_object( process
->token
);
438 /* dump a process on stdout for debugging purposes */
439 static void process_dump( struct object
*obj
, int verbose
)
441 struct process
*process
= (struct process
*)obj
;
442 assert( obj
->ops
== &process_ops
);
444 fprintf( stderr
, "Process id=%04x handles=%p\n", process
->id
, process
->handles
);
447 static int process_signaled( struct object
*obj
, struct thread
*thread
)
449 struct process
*process
= (struct process
*)obj
;
450 return !process
->running_threads
;
453 static void process_poll_event( struct fd
*fd
, int event
)
455 struct process
*process
= get_fd_user( fd
);
456 assert( process
->obj
.ops
== &process_ops
);
458 if (event
& (POLLERR
| POLLHUP
)) set_fd_events( fd
, -1 );
459 else if (event
& POLLIN
) receive_fd( process
);
462 static void startup_info_destroy( struct object
*obj
)
464 struct startup_info
*info
= (struct startup_info
*)obj
;
465 assert( obj
->ops
== &startup_info_ops
);
466 list_remove( &info
->entry
);
467 if (info
->data
) free( info
->data
);
468 if (info
->exe_file
) release_object( info
->exe_file
);
469 if (info
->process
) release_object( info
->process
);
470 if (info
->thread
) release_object( info
->thread
);
471 if (info
->owner
) release_object( info
->owner
);
474 static void startup_info_dump( struct object
*obj
, int verbose
)
476 struct startup_info
*info
= (struct startup_info
*)obj
;
477 assert( obj
->ops
== &startup_info_ops
);
479 fprintf( stderr
, "Startup info flags=%x in=%p out=%p err=%p\n",
480 info
->create_flags
, info
->hstdin
, info
->hstdout
, info
->hstderr
);
483 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
)
485 struct startup_info
*info
= (struct startup_info
*)obj
;
486 return info
->process
&& is_process_init_done(info
->process
);
489 /* get a process from an id (and increment the refcount) */
490 struct process
*get_process_from_id( process_id_t id
)
492 struct object
*obj
= get_ptid_entry( id
);
494 if (obj
&& obj
->ops
== &process_ops
) return (struct process
*)grab_object( obj
);
495 set_error( STATUS_INVALID_PARAMETER
);
499 /* get a process from a handle (and increment the refcount) */
500 struct process
*get_process_from_handle( obj_handle_t handle
, unsigned int access
)
502 return (struct process
*)get_handle_obj( current
->process
, handle
,
503 access
, &process_ops
);
506 /* find a dll from its base address */
507 static inline struct process_dll
*find_process_dll( struct process
*process
, void *base
)
509 struct process_dll
*dll
;
511 if (process
->exe
.base
== base
) return &process
->exe
;
513 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
515 if (dll
->base
== base
) return dll
;
520 /* add a dll to a process list */
521 static struct process_dll
*process_load_dll( struct process
*process
, struct file
*file
,
522 void *base
, const WCHAR
*filename
, size_t name_len
)
524 struct process_dll
*dll
;
526 /* make sure we don't already have one with the same base address */
527 if (find_process_dll( process
, base
))
529 set_error( STATUS_INVALID_PARAMETER
);
533 if ((dll
= mem_alloc( sizeof(*dll
) )))
537 dll
->filename
= NULL
;
538 dll
->namelen
= name_len
;
539 if (name_len
&& !(dll
->filename
= memdup( filename
, name_len
)))
544 if (file
) dll
->file
= (struct file
*)grab_object( file
);
545 list_add_head( &process
->dlls
, &dll
->entry
);
550 /* remove a dll from a process list */
551 static void process_unload_dll( struct process
*process
, void *base
)
553 struct process_dll
*dll
= find_process_dll( process
, base
);
555 if (dll
&& dll
!= &process
->exe
)
557 if (dll
->file
) release_object( dll
->file
);
558 if (dll
->filename
) free( dll
->filename
);
559 list_remove( &dll
->entry
);
561 generate_debug_event( current
, UNLOAD_DLL_DEBUG_EVENT
, base
);
563 else set_error( STATUS_INVALID_PARAMETER
);
566 /* kill all processes */
567 void kill_all_processes( struct process
*skip
, int exit_code
)
571 struct process
*process
;
573 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
575 if (process
== skip
) continue;
576 if (process
->running_threads
) break;
578 if (&process
->entry
== &process_list
) break; /* no process found */
579 kill_process( process
, NULL
, exit_code
);
583 /* kill all processes being attached to a console renderer */
584 void kill_console_processes( struct thread
*renderer
, int exit_code
)
586 for (;;) /* restart from the beginning of the list every time */
588 struct process
*process
;
590 /* find the first process being attached to 'renderer' and still running */
591 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
593 if (process
== renderer
->process
) continue;
594 if (!process
->running_threads
) continue;
595 if (process
->console
&& process
->console
->renderer
== renderer
) break;
597 if (&process
->entry
== &process_list
) break; /* no process found */
598 kill_process( process
, NULL
, exit_code
);
602 /* a process has been killed (i.e. its last thread died) */
603 static void process_killed( struct process
*process
)
605 struct handle_table
*handles
;
608 assert( list_empty( &process
->thread_list
));
609 gettimeofday( &process
->end_time
, NULL
);
610 handles
= process
->handles
;
611 process
->handles
= NULL
;
612 if (handles
) release_object( handles
);
614 /* close the console attached to this process, if any */
615 free_console( process
);
617 while ((ptr
= list_head( &process
->dlls
)))
619 struct process_dll
*dll
= LIST_ENTRY( ptr
, struct process_dll
, entry
);
620 if (dll
->file
) release_object( dll
->file
);
621 if (dll
->filename
) free( dll
->filename
);
622 list_remove( &dll
->entry
);
625 destroy_process_classes( process
);
626 remove_process_locks( process
);
627 set_process_startup_state( process
, STARTUP_ABORTED
);
628 if (process
->exe
.file
) release_object( process
->exe
.file
);
629 process
->exe
.file
= NULL
;
630 wake_up( &process
->obj
, 0 );
631 if (!--running_processes
) close_master_socket();
634 /* add a thread to a process running threads list */
635 void add_process_thread( struct process
*process
, struct thread
*thread
)
637 list_add_head( &process
->thread_list
, &thread
->proc_entry
);
638 if (!process
->running_threads
++) running_processes
++;
639 grab_object( thread
);
642 /* remove a thread from a process running threads list */
643 void remove_process_thread( struct process
*process
, struct thread
*thread
)
645 assert( process
->running_threads
> 0 );
646 assert( !list_empty( &process
->thread_list
));
648 list_remove( &thread
->proc_entry
);
650 if (!--process
->running_threads
)
652 /* we have removed the last running thread, exit the process */
653 process
->exit_code
= thread
->exit_code
;
654 generate_debug_event( thread
, EXIT_PROCESS_DEBUG_EVENT
, process
);
655 process_killed( process
);
657 else generate_debug_event( thread
, EXIT_THREAD_DEBUG_EVENT
, thread
);
658 release_object( thread
);
661 /* suspend all the threads of a process */
662 void suspend_process( struct process
*process
)
664 if (!process
->suspend
++)
666 struct list
*ptr
, *next
;
668 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
670 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
671 if (!thread
->suspend
) stop_thread( thread
);
676 /* resume all the threads of a process */
677 void resume_process( struct process
*process
)
679 assert (process
->suspend
> 0);
680 if (!--process
->suspend
)
682 struct list
*ptr
, *next
;
684 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
686 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
687 if (!thread
->suspend
) wake_thread( thread
);
692 /* kill a process on the spot */
693 void kill_process( struct process
*process
, struct thread
*skip
, int exit_code
)
695 struct list
*ptr
, *next
;
697 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
699 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
701 thread
->exit_code
= exit_code
;
702 if (thread
!= skip
) kill_thread( thread
, 1 );
706 /* kill all processes being debugged by a given thread */
707 void kill_debugged_processes( struct thread
*debugger
, int exit_code
)
709 for (;;) /* restart from the beginning of the list every time */
711 struct process
*process
;
713 /* find the first process being debugged by 'debugger' and still running */
714 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
716 if (!process
->running_threads
) continue;
717 if (process
->debugger
== debugger
) break;
719 if (&process
->entry
== &process_list
) break; /* no process found */
720 process
->debugger
= NULL
;
721 kill_process( process
, NULL
, exit_code
);
726 /* detach a debugger from all its debuggees */
727 void detach_debugged_processes( struct thread
*debugger
)
729 struct process
*process
;
731 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
733 if (process
->debugger
== debugger
&& process
->running_threads
)
735 debugger_detach( process
, debugger
);
741 void enum_processes( int (*cb
)(struct process
*, void*), void *user
)
743 struct list
*ptr
, *next
;
745 LIST_FOR_EACH_SAFE( ptr
, next
, &process_list
)
747 struct process
*process
= LIST_ENTRY( ptr
, struct process
, entry
);
748 if ((cb
)(process
, user
)) break;
753 /* read data from a process memory space */
754 /* len is the total size (in ints) */
755 static int read_process_memory( struct process
*process
, const int *addr
, size_t len
, int *dest
)
757 struct thread
*thread
= get_process_first_thread( process
);
759 assert( !((unsigned int)addr
% sizeof(int)) ); /* address must be aligned */
761 if (!thread
) /* process is dead */
763 set_error( STATUS_ACCESS_DENIED
);
766 if (suspend_for_ptrace( thread
))
770 if (read_thread_int( thread
, addr
++, dest
++ ) == -1) break;
773 resume_after_ptrace( thread
);
778 /* make sure we can write to the whole address range */
779 /* len is the total size (in ints) */
780 static int check_process_write_access( struct thread
*thread
, int *addr
, size_t len
)
782 int page
= get_page_size() / sizeof(int);
786 if (write_thread_int( thread
, addr
, 0, 0 ) == -1) return 0;
787 if (len
<= page
) break;
791 return (write_thread_int( thread
, addr
+ len
- 1, 0, 0 ) != -1);
794 /* write data to a process memory space */
795 /* len is the total size (in ints), max is the size we can actually read from the input buffer */
796 /* we check the total size for write permissions */
797 static int write_process_memory( struct process
*process
, int *addr
, size_t len
,
798 unsigned int first_mask
, unsigned int last_mask
, const int *src
)
800 struct thread
*thread
= get_process_first_thread( process
);
803 assert( !((unsigned int)addr
% sizeof(int) )); /* address must be aligned */
805 if (!thread
) /* process is dead */
807 set_error( STATUS_ACCESS_DENIED
);
810 if (suspend_for_ptrace( thread
))
812 if (!check_process_write_access( thread
, addr
, len
))
814 set_error( STATUS_ACCESS_DENIED
);
817 /* first word is special */
820 if (write_thread_int( thread
, addr
++, *src
++, first_mask
) == -1) goto done
;
823 else last_mask
&= first_mask
;
827 if (write_thread_int( thread
, addr
++, *src
++, ~0 ) == -1) goto done
;
831 /* last word is special too */
832 if (write_thread_int( thread
, addr
, *src
, last_mask
) == -1) goto done
;
836 resume_after_ptrace( thread
);
841 /* set the debugged flag in the process PEB */
842 int set_process_debug_flag( struct process
*process
, int flag
)
844 int mask
= 0, data
= 0;
846 /* BeingDebugged flag is the byte at offset 2 in the PEB */
847 memset( (char *)&mask
+ 2, 0xff, 1 );
848 memset( (char *)&data
+ 2, flag
, 1 );
849 return write_process_memory( process
, process
->peb
, 1, mask
, mask
, &data
);
852 /* take a snapshot of currently running processes */
853 struct process_snapshot
*process_snap( int *count
)
855 struct process_snapshot
*snapshot
, *ptr
;
856 struct process
*process
;
857 if (!running_processes
) return NULL
;
858 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * running_processes
)))
861 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
863 if (!process
->running_threads
) continue;
864 ptr
->process
= process
;
865 ptr
->threads
= process
->running_threads
;
866 ptr
->count
= process
->obj
.refcount
;
867 ptr
->priority
= process
->priority
;
868 ptr
->handles
= get_handle_table_count(process
);
869 grab_object( process
);
872 *count
= running_processes
;
876 /* take a snapshot of the modules of a process */
877 struct module_snapshot
*module_snap( struct process
*process
, int *count
)
879 struct module_snapshot
*snapshot
, *ptr
;
880 struct process_dll
*dll
;
883 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
) total
++;
884 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * total
))) return NULL
;
886 /* first entry is main exe */
887 snapshot
->base
= process
->exe
.base
;
888 snapshot
->size
= process
->exe
.size
;
889 snapshot
->namelen
= process
->exe
.namelen
;
890 snapshot
->filename
= memdup( process
->exe
.filename
, process
->exe
.namelen
);
893 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
895 ptr
->base
= dll
->base
;
896 ptr
->size
= dll
->size
;
897 ptr
->namelen
= dll
->namelen
;
898 ptr
->filename
= memdup( dll
->filename
, dll
->namelen
);
906 /* create a new process */
907 DECL_HANDLER(new_process
)
909 struct startup_info
*info
;
911 /* build the startup info for a new process */
912 if (!(info
= alloc_object( &startup_info_ops
))) return;
913 list_add_head( &startup_info_list
, &info
->entry
);
914 info
->inherit_all
= req
->inherit_all
;
915 info
->create_flags
= req
->create_flags
;
916 info
->unix_pid
= req
->unix_pid
;
917 info
->hstdin
= req
->hstdin
;
918 info
->hstdout
= req
->hstdout
;
919 info
->hstderr
= req
->hstderr
;
920 info
->exe_file
= NULL
;
921 info
->owner
= (struct thread
*)grab_object( current
);
922 info
->process
= NULL
;
924 info
->data_size
= get_req_data_size();
928 !(info
->exe_file
= get_file_obj( current
->process
, req
->exe_file
, GENERIC_READ
)))
931 if (!(info
->data
= memdup( get_req_data(), info
->data_size
))) goto done
;
932 reply
->info
= alloc_handle( current
->process
, info
, SYNCHRONIZE
, FALSE
);
935 release_object( info
);
938 /* Retrieve information about a newly started process */
939 DECL_HANDLER(get_new_process_info
)
941 struct startup_info
*info
;
943 if ((info
= (struct startup_info
*)get_handle_obj( current
->process
, req
->info
,
944 0, &startup_info_ops
)))
946 reply
->pid
= get_process_id( info
->process
);
947 reply
->tid
= get_thread_id( info
->thread
);
948 reply
->phandle
= alloc_handle( current
->process
, info
->process
,
949 PROCESS_ALL_ACCESS
, req
->pinherit
);
950 reply
->thandle
= alloc_handle( current
->process
, info
->thread
,
951 THREAD_ALL_ACCESS
, req
->tinherit
);
952 reply
->success
= is_process_init_done( info
->process
);
953 release_object( info
);
965 /* Retrieve the new process startup info */
966 DECL_HANDLER(get_startup_info
)
968 struct startup_info
*info
;
970 if ((info
= current
->process
->startup_info
))
972 size_t size
= info
->data_size
;
973 if (size
> get_reply_max_size()) size
= get_reply_max_size();
975 /* we return the data directly without making a copy so this can only be called once */
976 set_reply_data_ptr( info
->data
, size
);
983 /* initialize a new process */
984 DECL_HANDLER(init_process
)
986 if (current
->unix_pid
== -1)
988 fatal_protocol_error( current
, "init_process: init_thread not called yet\n" );
991 if (current
->process
->startup_info
)
993 fatal_protocol_error( current
, "init_process: called twice\n" );
996 if (!req
->peb
|| (unsigned int)req
->peb
% sizeof(int))
998 fatal_protocol_error( current
, "init_process: bad peb address\n" );
1001 if (!req
->ldt_copy
|| (unsigned int)req
->ldt_copy
% sizeof(int))
1003 fatal_protocol_error( current
, "init_process: bad ldt_copy address\n" );
1006 reply
->info_size
= 0;
1007 current
->process
->peb
= req
->peb
;
1008 current
->process
->ldt_copy
= req
->ldt_copy
;
1009 current
->process
->startup_info
= init_process( reply
);
1012 /* signal the end of the process initialization */
1013 DECL_HANDLER(init_process_done
)
1015 struct file
*file
= NULL
;
1016 struct process
*process
= current
->process
;
1018 if (is_process_init_done(process
))
1020 fatal_protocol_error( current
, "init_process_done: called twice\n" );
1025 fatal_protocol_error( current
, "init_process_done: module base address cannot be 0\n" );
1028 process
->exe
.base
= req
->module
;
1029 process
->exe
.size
= req
->module_size
;
1030 process
->exe
.name
= req
->name
;
1032 if (req
->exe_file
) file
= get_file_obj( process
, req
->exe_file
, GENERIC_READ
);
1033 if (process
->exe
.file
) release_object( process
->exe
.file
);
1034 process
->exe
.file
= file
;
1036 if ((process
->exe
.namelen
= get_req_data_size()))
1037 process
->exe
.filename
= memdup( get_req_data(), process
->exe
.namelen
);
1039 generate_startup_debug_events( process
, req
->entry
);
1040 set_process_startup_state( process
, STARTUP_DONE
);
1042 if (req
->gui
) process
->idle_event
= create_event( NULL
, 0, 1, 0 );
1043 if (current
->suspend
+ process
->suspend
> 0) stop_thread( current
);
1044 if (process
->debugger
) set_process_debug_flag( process
, 1 );
1047 /* open a handle to a process */
1048 DECL_HANDLER(open_process
)
1050 struct process
*process
= get_process_from_id( req
->pid
);
1054 reply
->handle
= alloc_handle( current
->process
, process
, req
->access
, req
->inherit
);
1055 release_object( process
);
1059 /* terminate a process */
1060 DECL_HANDLER(terminate_process
)
1062 struct process
*process
;
1064 if ((process
= get_process_from_handle( req
->handle
, PROCESS_TERMINATE
)))
1066 reply
->self
= (current
->process
== process
);
1067 kill_process( process
, current
, req
->exit_code
);
1068 release_object( process
);
1072 /* fetch information about a process */
1073 DECL_HANDLER(get_process_info
)
1075 struct process
*process
;
1077 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1079 reply
->pid
= get_process_id( process
);
1080 reply
->ppid
= process
->parent
? get_process_id( process
->parent
) : 0;
1081 reply
->exit_code
= process
->exit_code
;
1082 reply
->priority
= process
->priority
;
1083 reply
->process_affinity
= process
->affinity
;
1084 reply
->system_affinity
= 1;
1085 reply
->peb
= process
->peb
;
1086 release_object( process
);
1090 /* set information about a process */
1091 DECL_HANDLER(set_process_info
)
1093 struct process
*process
;
1095 if ((process
= get_process_from_handle( req
->handle
, PROCESS_SET_INFORMATION
)))
1097 if (req
->mask
& SET_PROCESS_INFO_PRIORITY
) process
->priority
= req
->priority
;
1098 if (req
->mask
& SET_PROCESS_INFO_AFFINITY
)
1100 if (req
->affinity
!= 1) set_error( STATUS_INVALID_PARAMETER
);
1101 else process
->affinity
= req
->affinity
;
1103 release_object( process
);
1107 /* read data from a process address space */
1108 DECL_HANDLER(read_process_memory
)
1110 struct process
*process
;
1111 size_t len
= get_reply_max_size();
1113 if (!(process
= get_process_from_handle( req
->handle
, PROCESS_VM_READ
))) return;
1117 unsigned int start_offset
= (unsigned int)req
->addr
% sizeof(int);
1118 unsigned int nb_ints
= (len
+ start_offset
+ sizeof(int) - 1) / sizeof(int);
1119 const int *start
= (int *)((char *)req
->addr
- start_offset
);
1120 int *buffer
= mem_alloc( nb_ints
* sizeof(int) );
1123 if (read_process_memory( process
, start
, nb_ints
, buffer
))
1125 /* move start of requested data to start of buffer */
1126 if (start_offset
) memmove( buffer
, (char *)buffer
+ start_offset
, len
);
1127 set_reply_data_ptr( buffer
, len
);
1132 release_object( process
);
1135 /* write data to a process address space */
1136 DECL_HANDLER(write_process_memory
)
1138 struct process
*process
;
1140 if ((process
= get_process_from_handle( req
->handle
, PROCESS_VM_WRITE
)))
1142 size_t len
= get_req_data_size();
1143 if ((len
% sizeof(int)) || ((unsigned int)req
->addr
% sizeof(int)))
1144 set_error( STATUS_INVALID_PARAMETER
);
1147 if (len
) write_process_memory( process
, req
->addr
, len
/ sizeof(int),
1148 req
->first_mask
, req
->last_mask
, get_req_data() );
1150 release_object( process
);
1154 /* notify the server that a dll has been loaded */
1155 DECL_HANDLER(load_dll
)
1157 struct process_dll
*dll
;
1158 struct file
*file
= NULL
;
1160 if (req
->handle
&& !(file
= get_file_obj( current
->process
, req
->handle
, GENERIC_READ
)))
1163 if ((dll
= process_load_dll( current
->process
, file
, req
->base
,
1164 get_req_data(), get_req_data_size() )))
1166 dll
->size
= req
->size
;
1167 dll
->dbg_offset
= req
->dbg_offset
;
1168 dll
->dbg_size
= req
->dbg_size
;
1169 dll
->name
= req
->name
;
1170 /* only generate event if initialization is done */
1171 if (is_process_init_done( current
->process
))
1172 generate_debug_event( current
, LOAD_DLL_DEBUG_EVENT
, dll
);
1174 if (file
) release_object( file
);
1177 /* notify the server that a dll is being unloaded */
1178 DECL_HANDLER(unload_dll
)
1180 process_unload_dll( current
->process
, req
->base
);
1183 /* retrieve information about a module in a process */
1184 DECL_HANDLER(get_dll_info
)
1186 struct process
*process
;
1188 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1190 struct process_dll
*dll
= find_process_dll( process
, req
->base_address
);
1194 reply
->size
= dll
->size
;
1195 reply
->entry_point
= NULL
; /* FIXME */
1198 size_t len
= min( dll
->namelen
, get_reply_max_size() );
1199 set_reply_data( dll
->filename
, len
);
1203 set_error( STATUS_DLL_NOT_FOUND
);
1205 release_object( process
);
1209 /* wait for a process to start waiting on input */
1210 /* FIXME: only returns event for now, wait is done in the client */
1211 DECL_HANDLER(wait_input_idle
)
1213 struct process
*process
;
1216 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1218 if (process
->idle_event
&& process
!= current
->process
&& process
->queue
!= current
->queue
)
1219 reply
->event
= alloc_handle( current
->process
, process
->idle_event
,
1220 EVENT_ALL_ACCESS
, 0 );
1221 release_object( process
);