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>
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 void process_poll_event( struct fd
*fd
, int event
);
63 static void process_destroy( struct object
*obj
);
65 static const struct object_ops process_ops
=
67 sizeof(struct process
), /* size */
68 process_dump
, /* dump */
69 add_queue
, /* add_queue */
70 remove_queue
, /* remove_queue */
71 process_signaled
, /* signaled */
72 no_satisfied
, /* satisfied */
73 no_signal
, /* signal */
74 no_get_fd
, /* get_fd */
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 startup_info_destroy
/* destroy */
126 static struct list startup_info_list
= LIST_INIT(startup_info_list
);
130 void *ptr
; /* entry ptr */
131 unsigned int next
; /* next free entry */
134 static struct ptid_entry
*ptid_entries
; /* array of ptid entries */
135 static unsigned int used_ptid_entries
; /* number of entries in use */
136 static unsigned int alloc_ptid_entries
; /* number of allocated entries */
137 static unsigned int next_free_ptid
; /* next free entry */
138 static unsigned int last_free_ptid
; /* last free entry */
140 #define PTID_OFFSET 8 /* offset for first ptid value */
142 /* allocate a new process or thread id */
143 unsigned int alloc_ptid( void *ptr
)
145 struct ptid_entry
*entry
;
148 if (used_ptid_entries
< alloc_ptid_entries
)
150 id
= used_ptid_entries
+ PTID_OFFSET
;
151 entry
= &ptid_entries
[used_ptid_entries
++];
153 else if (next_free_ptid
)
156 entry
= &ptid_entries
[id
- PTID_OFFSET
];
157 if (!(next_free_ptid
= entry
->next
)) last_free_ptid
= 0;
159 else /* need to grow the array */
161 unsigned int count
= alloc_ptid_entries
+ (alloc_ptid_entries
/ 2);
162 if (!count
) count
= 64;
163 if (!(entry
= realloc( ptid_entries
, count
* sizeof(*entry
) )))
165 set_error( STATUS_NO_MEMORY
);
168 ptid_entries
= entry
;
169 alloc_ptid_entries
= count
;
170 id
= used_ptid_entries
+ PTID_OFFSET
;
171 entry
= &ptid_entries
[used_ptid_entries
++];
178 /* free a process or thread id */
179 void free_ptid( unsigned int id
)
181 struct ptid_entry
*entry
= &ptid_entries
[id
- PTID_OFFSET
];
186 /* append to end of free list so that we don't reuse it too early */
187 if (last_free_ptid
) ptid_entries
[last_free_ptid
- PTID_OFFSET
].next
= id
;
188 else next_free_ptid
= id
;
193 /* retrieve the pointer corresponding to a process or thread id */
194 void *get_ptid_entry( unsigned int id
)
196 if (id
< PTID_OFFSET
) return NULL
;
197 if (id
- PTID_OFFSET
>= used_ptid_entries
) return NULL
;
198 return ptid_entries
[id
- PTID_OFFSET
].ptr
;
201 /* return the main thread of the process */
202 struct thread
*get_process_first_thread( struct process
*process
)
204 struct list
*ptr
= list_head( &process
->thread_list
);
205 if (!ptr
) return NULL
;
206 return LIST_ENTRY( ptr
, struct thread
, proc_entry
);
209 /* set the state of the process startup info */
210 static void set_process_startup_state( struct process
*process
, enum startup_state state
)
212 if (process
->startup_state
== STARTUP_IN_PROGRESS
) process
->startup_state
= state
;
213 if (process
->startup_info
)
215 wake_up( &process
->startup_info
->obj
, 0 );
216 release_object( process
->startup_info
);
217 process
->startup_info
= NULL
;
221 /* set the console and stdio handles for a newly created process */
222 static int set_process_console( struct process
*process
, struct thread
*parent_thread
,
223 struct startup_info
*info
, struct init_process_reply
*reply
)
227 if (!(process
->create_flags
& (DETACHED_PROCESS
| CREATE_NEW_CONSOLE
)))
229 /* FIXME: some better error checking should be done...
230 * like if hConOut and hConIn are console handles, then they should be on the same
233 inherit_console( parent_thread
, process
, info
->inherit_all
? info
->hstdin
: 0 );
235 if (!info
->inherit_all
&& !(process
->create_flags
& CREATE_NEW_CONSOLE
))
237 reply
->hstdin
= duplicate_handle( parent_thread
->process
, info
->hstdin
, process
,
238 0, TRUE
, DUPLICATE_SAME_ACCESS
);
239 reply
->hstdout
= duplicate_handle( parent_thread
->process
, info
->hstdout
, process
,
240 0, TRUE
, DUPLICATE_SAME_ACCESS
);
241 reply
->hstderr
= duplicate_handle( parent_thread
->process
, info
->hstderr
, process
,
242 0, TRUE
, DUPLICATE_SAME_ACCESS
);
246 reply
->hstdin
= info
->hstdin
;
247 reply
->hstdout
= info
->hstdout
;
248 reply
->hstderr
= info
->hstderr
;
251 else reply
->hstdin
= reply
->hstdout
= reply
->hstderr
= 0;
252 /* some handles above may have been invalid; this is not an error */
253 if (get_error() == STATUS_INVALID_HANDLE
||
254 get_error() == STATUS_OBJECT_TYPE_MISMATCH
) clear_error();
258 /* create a new process and its main thread */
259 struct thread
*create_process( int fd
)
261 struct process
*process
;
262 struct thread
*thread
= NULL
;
265 if (!(process
= alloc_object( &process_ops
))) goto error
;
266 process
->parent
= NULL
;
267 process
->debugger
= NULL
;
268 process
->handles
= NULL
;
269 process
->msg_fd
= NULL
;
270 process
->exit_code
= STILL_ACTIVE
;
271 process
->running_threads
= 0;
272 process
->priority
= NORMAL_PRIORITY_CLASS
;
273 process
->affinity
= 1;
274 process
->suspend
= 0;
275 process
->create_flags
= 0;
276 process
->console
= NULL
;
277 process
->startup_state
= STARTUP_IN_PROGRESS
;
278 process
->startup_info
= NULL
;
279 process
->idle_event
= NULL
;
280 process
->queue
= NULL
;
282 process
->ldt_copy
= NULL
;
283 process
->winstation
= 0;
284 process
->desktop
= 0;
285 process
->exe
.file
= NULL
;
286 process
->exe
.dbg_offset
= 0;
287 process
->exe
.dbg_size
= 0;
288 process
->exe
.namelen
= 0;
289 process
->exe
.filename
= NULL
;
290 process
->group_id
= 0;
291 process
->token
= token_create_admin();
292 list_init( &process
->thread_list
);
293 list_init( &process
->locks
);
294 list_init( &process
->classes
);
295 list_init( &process
->dlls
);
297 gettimeofday( &process
->start_time
, NULL
);
298 list_add_head( &process_list
, &process
->entry
);
300 if (!(process
->id
= alloc_ptid( process
))) goto error
;
301 if (!(process
->msg_fd
= create_anonymous_fd( &process_fd_ops
, fd
, &process
->obj
))) goto error
;
303 /* create the main thread */
304 if (pipe( request_pipe
) == -1)
309 if (send_client_fd( process
, request_pipe
[1], 0 ) == -1)
311 close( request_pipe
[0] );
312 close( request_pipe
[1] );
315 close( request_pipe
[1] );
316 if (!(thread
= create_thread( request_pipe
[0], process
))) goto error
;
318 set_fd_events( process
->msg_fd
, POLLIN
); /* start listening to events */
319 release_object( process
);
323 if (process
) release_object( process
);
324 /* if we failed to start our first process, close everything down */
325 if (!running_processes
) close_master_socket();
329 /* find the startup info for a given Unix process */
330 inline static struct startup_info
*find_startup_info( int unix_pid
)
334 LIST_FOR_EACH( ptr
, &startup_info_list
)
336 struct startup_info
*info
= LIST_ENTRY( ptr
, struct startup_info
, entry
);
337 if (info
->unix_pid
== unix_pid
) return info
;
342 /* initialize the current process and fill in the request */
343 static struct startup_info
*init_process( struct init_process_reply
*reply
)
345 struct process
*process
= current
->process
;
346 struct thread
*parent_thread
= NULL
;
347 struct process
*parent
= NULL
;
348 struct startup_info
*info
= find_startup_info( current
->unix_pid
);
354 fatal_protocol_error( current
, "init_process: called twice?\n" );
357 parent_thread
= info
->owner
;
358 parent
= parent_thread
->process
;
359 process
->parent
= (struct process
*)grab_object( parent
);
362 /* set the process flags */
363 process
->create_flags
= info
? info
->create_flags
: 0;
365 /* create the handle table */
366 if (info
&& info
->inherit_all
)
367 process
->handles
= copy_handle_table( process
, parent
);
369 process
->handles
= alloc_handle_table( process
, 0 );
370 if (!process
->handles
) return NULL
;
372 /* retrieve the main exe file */
374 if (info
&& info
->exe_file
)
376 process
->exe
.file
= (struct file
*)grab_object( info
->exe_file
);
377 if (!(reply
->exe_file
= alloc_handle( process
, process
->exe
.file
, GENERIC_READ
, 0 )))
381 /* connect to the window station and desktop */
382 connect_process_winstation( process
, NULL
, 0 );
383 connect_process_desktop( process
, NULL
, 0 );
384 current
->desktop
= process
->desktop
;
386 /* set the process console */
387 if (!set_process_console( process
, parent_thread
, info
, reply
)) return NULL
;
389 process
->group_id
= get_process_id( process
);
392 /* attach to the debugger if requested */
393 if (process
->create_flags
& (DEBUG_PROCESS
| DEBUG_ONLY_THIS_PROCESS
))
394 set_process_debugger( process
, parent_thread
);
395 else if (parent
->debugger
&& !(parent
->create_flags
& DEBUG_ONLY_THIS_PROCESS
))
396 set_process_debugger( process
, parent
->debugger
);
397 if (!(process
->create_flags
& CREATE_NEW_PROCESS_GROUP
))
398 process
->group_id
= parent
->group_id
;
401 /* thread will be actually suspended in init_done */
402 if (process
->create_flags
& CREATE_SUSPENDED
) current
->suspend
++;
406 reply
->info_size
= info
->data_size
;
407 info
->process
= (struct process
*)grab_object( process
);
408 info
->thread
= (struct thread
*)grab_object( current
);
410 reply
->create_flags
= process
->create_flags
;
411 reply
->server_start
= server_start_ticks
;
412 return info
? (struct startup_info
*)grab_object( info
) : NULL
;
415 /* destroy a process when its refcount is 0 */
416 static void process_destroy( struct object
*obj
)
418 struct process
*process
= (struct process
*)obj
;
419 assert( obj
->ops
== &process_ops
);
421 /* we can't have a thread remaining */
422 assert( list_empty( &process
->thread_list
));
424 set_process_startup_state( process
, STARTUP_ABORTED
);
425 if (process
->console
) release_object( process
->console
);
426 if (process
->parent
) release_object( process
->parent
);
427 if (process
->msg_fd
) release_object( process
->msg_fd
);
428 list_remove( &process
->entry
);
429 if (process
->idle_event
) release_object( process
->idle_event
);
430 if (process
->queue
) release_object( process
->queue
);
431 if (process
->exe
.file
) release_object( process
->exe
.file
);
432 if (process
->exe
.filename
) free( process
->exe
.filename
);
433 if (process
->id
) free_ptid( process
->id
);
434 if (process
->token
) release_object( process
->token
);
437 /* dump a process on stdout for debugging purposes */
438 static void process_dump( struct object
*obj
, int verbose
)
440 struct process
*process
= (struct process
*)obj
;
441 assert( obj
->ops
== &process_ops
);
443 fprintf( stderr
, "Process id=%04x handles=%p\n", process
->id
, process
->handles
);
446 static int process_signaled( struct object
*obj
, struct thread
*thread
)
448 struct process
*process
= (struct process
*)obj
;
449 return !process
->running_threads
;
452 static void process_poll_event( struct fd
*fd
, int event
)
454 struct process
*process
= get_fd_user( fd
);
455 assert( process
->obj
.ops
== &process_ops
);
457 if (event
& (POLLERR
| POLLHUP
)) set_fd_events( fd
, -1 );
458 else if (event
& POLLIN
) receive_fd( process
);
461 static void startup_info_destroy( struct object
*obj
)
463 struct startup_info
*info
= (struct startup_info
*)obj
;
464 assert( obj
->ops
== &startup_info_ops
);
465 list_remove( &info
->entry
);
466 if (info
->data
) free( info
->data
);
467 if (info
->exe_file
) release_object( info
->exe_file
);
468 if (info
->process
) release_object( info
->process
);
469 if (info
->thread
) release_object( info
->thread
);
470 if (info
->owner
) release_object( info
->owner
);
473 static void startup_info_dump( struct object
*obj
, int verbose
)
475 struct startup_info
*info
= (struct startup_info
*)obj
;
476 assert( obj
->ops
== &startup_info_ops
);
478 fprintf( stderr
, "Startup info flags=%x in=%p out=%p err=%p\n",
479 info
->create_flags
, info
->hstdin
, info
->hstdout
, info
->hstderr
);
482 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
)
484 struct startup_info
*info
= (struct startup_info
*)obj
;
485 return info
->process
&& is_process_init_done(info
->process
);
488 /* get a process from an id (and increment the refcount) */
489 struct process
*get_process_from_id( process_id_t id
)
491 struct object
*obj
= get_ptid_entry( id
);
493 if (obj
&& obj
->ops
== &process_ops
) return (struct process
*)grab_object( obj
);
494 set_error( STATUS_INVALID_PARAMETER
);
498 /* get a process from a handle (and increment the refcount) */
499 struct process
*get_process_from_handle( obj_handle_t handle
, unsigned int access
)
501 return (struct process
*)get_handle_obj( current
->process
, handle
,
502 access
, &process_ops
);
505 /* find a dll from its base address */
506 static inline struct process_dll
*find_process_dll( struct process
*process
, void *base
)
508 struct process_dll
*dll
;
510 if (process
->exe
.base
== base
) return &process
->exe
;
512 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
514 if (dll
->base
== base
) return dll
;
519 /* add a dll to a process list */
520 static struct process_dll
*process_load_dll( struct process
*process
, struct file
*file
,
521 void *base
, const WCHAR
*filename
, size_t name_len
)
523 struct process_dll
*dll
;
525 /* make sure we don't already have one with the same base address */
526 if (find_process_dll( process
, base
))
528 set_error( STATUS_INVALID_PARAMETER
);
532 if ((dll
= mem_alloc( sizeof(*dll
) )))
536 dll
->filename
= NULL
;
537 dll
->namelen
= name_len
;
538 if (name_len
&& !(dll
->filename
= memdup( filename
, name_len
)))
543 if (file
) dll
->file
= (struct file
*)grab_object( file
);
544 list_add_head( &process
->dlls
, &dll
->entry
);
549 /* remove a dll from a process list */
550 static void process_unload_dll( struct process
*process
, void *base
)
552 struct process_dll
*dll
= find_process_dll( process
, base
);
554 if (dll
&& dll
!= &process
->exe
)
556 if (dll
->file
) release_object( dll
->file
);
557 if (dll
->filename
) free( dll
->filename
);
558 list_remove( &dll
->entry
);
560 generate_debug_event( current
, UNLOAD_DLL_DEBUG_EVENT
, base
);
562 else set_error( STATUS_INVALID_PARAMETER
);
565 /* kill all processes */
566 void kill_all_processes( struct process
*skip
, int exit_code
)
570 struct process
*process
;
572 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
574 if (process
== skip
) continue;
575 if (process
->running_threads
) break;
577 if (&process
->entry
== &process_list
) break; /* no process found */
578 kill_process( process
, NULL
, exit_code
);
582 /* kill all processes being attached to a console renderer */
583 void kill_console_processes( struct thread
*renderer
, int exit_code
)
585 for (;;) /* restart from the beginning of the list every time */
587 struct process
*process
;
589 /* find the first process being attached to 'renderer' and still running */
590 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
592 if (process
== renderer
->process
) continue;
593 if (!process
->running_threads
) continue;
594 if (process
->console
&& process
->console
->renderer
== renderer
) break;
596 if (&process
->entry
== &process_list
) break; /* no process found */
597 kill_process( process
, NULL
, exit_code
);
601 /* a process has been killed (i.e. its last thread died) */
602 static void process_killed( struct process
*process
)
606 assert( list_empty( &process
->thread_list
));
607 gettimeofday( &process
->end_time
, NULL
);
608 if (process
->handles
) release_object( process
->handles
);
609 process
->handles
= NULL
;
611 /* close the console attached to this process, if any */
612 free_console( process
);
614 while ((ptr
= list_head( &process
->dlls
)))
616 struct process_dll
*dll
= LIST_ENTRY( ptr
, struct process_dll
, entry
);
617 if (dll
->file
) release_object( dll
->file
);
618 if (dll
->filename
) free( dll
->filename
);
619 list_remove( &dll
->entry
);
622 destroy_process_classes( process
);
623 set_process_startup_state( process
, STARTUP_ABORTED
);
624 if (process
->exe
.file
) release_object( process
->exe
.file
);
625 process
->exe
.file
= NULL
;
626 wake_up( &process
->obj
, 0 );
627 if (!--running_processes
) close_master_socket();
630 /* add a thread to a process running threads list */
631 void add_process_thread( struct process
*process
, struct thread
*thread
)
633 list_add_head( &process
->thread_list
, &thread
->proc_entry
);
634 if (!process
->running_threads
++) running_processes
++;
635 grab_object( thread
);
638 /* remove a thread from a process running threads list */
639 void remove_process_thread( struct process
*process
, struct thread
*thread
)
641 assert( process
->running_threads
> 0 );
642 assert( !list_empty( &process
->thread_list
));
644 list_remove( &thread
->proc_entry
);
646 if (!--process
->running_threads
)
648 /* we have removed the last running thread, exit the process */
649 process
->exit_code
= thread
->exit_code
;
650 generate_debug_event( thread
, EXIT_PROCESS_DEBUG_EVENT
, process
);
651 process_killed( process
);
653 else generate_debug_event( thread
, EXIT_THREAD_DEBUG_EVENT
, thread
);
654 release_object( thread
);
657 /* suspend all the threads of a process */
658 void suspend_process( struct process
*process
)
660 if (!process
->suspend
++)
662 struct list
*ptr
, *next
;
664 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
666 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
667 if (!thread
->suspend
) stop_thread( thread
);
672 /* resume all the threads of a process */
673 void resume_process( struct process
*process
)
675 assert (process
->suspend
> 0);
676 if (!--process
->suspend
)
678 struct list
*ptr
, *next
;
680 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
682 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
683 if (!thread
->suspend
) wake_thread( thread
);
688 /* kill a process on the spot */
689 void kill_process( struct process
*process
, struct thread
*skip
, int exit_code
)
691 struct list
*ptr
, *next
;
693 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
695 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
697 thread
->exit_code
= exit_code
;
698 if (thread
!= skip
) kill_thread( thread
, 1 );
702 /* kill all processes being debugged by a given thread */
703 void kill_debugged_processes( struct thread
*debugger
, int exit_code
)
705 for (;;) /* restart from the beginning of the list every time */
707 struct process
*process
;
709 /* find the first process being debugged by 'debugger' and still running */
710 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
712 if (!process
->running_threads
) continue;
713 if (process
->debugger
== debugger
) break;
715 if (&process
->entry
== &process_list
) break; /* no process found */
716 process
->debugger
= NULL
;
717 kill_process( process
, NULL
, exit_code
);
722 /* detach a debugger from all its debuggees */
723 void detach_debugged_processes( struct thread
*debugger
)
725 struct process
*process
;
727 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
729 if (process
->debugger
== debugger
&& process
->running_threads
)
731 debugger_detach( process
, debugger
);
737 void enum_processes( int (*cb
)(struct process
*, void*), void *user
)
739 struct list
*ptr
, *next
;
741 LIST_FOR_EACH_SAFE( ptr
, next
, &process_list
)
743 struct process
*process
= LIST_ENTRY( ptr
, struct process
, entry
);
744 if ((cb
)(process
, user
)) break;
749 /* read data from a process memory space */
750 /* len is the total size (in ints) */
751 static int read_process_memory( struct process
*process
, const int *addr
, size_t len
, int *dest
)
753 struct thread
*thread
= get_process_first_thread( process
);
755 assert( !((unsigned int)addr
% sizeof(int)) ); /* address must be aligned */
757 if (!thread
) /* process is dead */
759 set_error( STATUS_ACCESS_DENIED
);
762 if (suspend_for_ptrace( thread
))
766 if (read_thread_int( thread
, addr
++, dest
++ ) == -1) break;
769 resume_after_ptrace( thread
);
774 /* make sure we can write to the whole address range */
775 /* len is the total size (in ints) */
776 static int check_process_write_access( struct thread
*thread
, int *addr
, size_t len
)
778 int page
= get_page_size() / sizeof(int);
782 if (write_thread_int( thread
, addr
, 0, 0 ) == -1) return 0;
783 if (len
<= page
) break;
787 return (write_thread_int( thread
, addr
+ len
- 1, 0, 0 ) != -1);
790 /* write data to a process memory space */
791 /* len is the total size (in ints), max is the size we can actually read from the input buffer */
792 /* we check the total size for write permissions */
793 static int write_process_memory( struct process
*process
, int *addr
, size_t len
,
794 unsigned int first_mask
, unsigned int last_mask
, const int *src
)
796 struct thread
*thread
= get_process_first_thread( process
);
799 assert( !((unsigned int)addr
% sizeof(int) )); /* address must be aligned */
801 if (!thread
) /* process is dead */
803 set_error( STATUS_ACCESS_DENIED
);
806 if (suspend_for_ptrace( thread
))
808 if (!check_process_write_access( thread
, addr
, len
))
810 set_error( STATUS_ACCESS_DENIED
);
813 /* first word is special */
816 if (write_thread_int( thread
, addr
++, *src
++, first_mask
) == -1) goto done
;
819 else last_mask
&= first_mask
;
823 if (write_thread_int( thread
, addr
++, *src
++, ~0 ) == -1) goto done
;
827 /* last word is special too */
828 if (write_thread_int( thread
, addr
, *src
, last_mask
) == -1) goto done
;
832 resume_after_ptrace( thread
);
837 /* set the debugged flag in the process PEB */
838 int set_process_debug_flag( struct process
*process
, int flag
)
840 int mask
= 0, data
= 0;
842 /* BeingDebugged flag is the byte at offset 2 in the PEB */
843 memset( (char *)&mask
+ 2, 0xff, 1 );
844 memset( (char *)&data
+ 2, flag
, 1 );
845 return write_process_memory( process
, process
->peb
, 1, mask
, mask
, &data
);
848 /* take a snapshot of currently running processes */
849 struct process_snapshot
*process_snap( int *count
)
851 struct process_snapshot
*snapshot
, *ptr
;
852 struct process
*process
;
853 if (!running_processes
) return NULL
;
854 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * running_processes
)))
857 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
859 if (!process
->running_threads
) continue;
860 ptr
->process
= process
;
861 ptr
->threads
= process
->running_threads
;
862 ptr
->count
= process
->obj
.refcount
;
863 ptr
->priority
= process
->priority
;
864 ptr
->handles
= get_handle_table_count(process
);
865 grab_object( process
);
868 *count
= running_processes
;
872 /* take a snapshot of the modules of a process */
873 struct module_snapshot
*module_snap( struct process
*process
, int *count
)
875 struct module_snapshot
*snapshot
, *ptr
;
876 struct process_dll
*dll
;
879 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
) total
++;
880 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * total
))) return NULL
;
882 /* first entry is main exe */
883 snapshot
->base
= process
->exe
.base
;
884 snapshot
->size
= process
->exe
.size
;
885 snapshot
->namelen
= process
->exe
.namelen
;
886 snapshot
->filename
= memdup( process
->exe
.filename
, process
->exe
.namelen
);
889 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
891 ptr
->base
= dll
->base
;
892 ptr
->size
= dll
->size
;
893 ptr
->namelen
= dll
->namelen
;
894 ptr
->filename
= memdup( dll
->filename
, dll
->namelen
);
902 /* create a new process */
903 DECL_HANDLER(new_process
)
905 struct startup_info
*info
;
907 /* build the startup info for a new process */
908 if (!(info
= alloc_object( &startup_info_ops
))) return;
909 list_add_head( &startup_info_list
, &info
->entry
);
910 info
->inherit_all
= req
->inherit_all
;
911 info
->create_flags
= req
->create_flags
;
912 info
->unix_pid
= req
->unix_pid
;
913 info
->hstdin
= req
->hstdin
;
914 info
->hstdout
= req
->hstdout
;
915 info
->hstderr
= req
->hstderr
;
916 info
->exe_file
= NULL
;
917 info
->owner
= (struct thread
*)grab_object( current
);
918 info
->process
= NULL
;
920 info
->data_size
= get_req_data_size();
924 !(info
->exe_file
= get_file_obj( current
->process
, req
->exe_file
, GENERIC_READ
)))
927 if (!(info
->data
= memdup( get_req_data(), info
->data_size
))) goto done
;
928 reply
->info
= alloc_handle( current
->process
, info
, SYNCHRONIZE
, FALSE
);
931 release_object( info
);
934 /* Retrieve information about a newly started process */
935 DECL_HANDLER(get_new_process_info
)
937 struct startup_info
*info
;
939 if ((info
= (struct startup_info
*)get_handle_obj( current
->process
, req
->info
,
940 0, &startup_info_ops
)))
942 reply
->pid
= get_process_id( info
->process
);
943 reply
->tid
= get_thread_id( info
->thread
);
944 reply
->phandle
= alloc_handle( current
->process
, info
->process
,
945 PROCESS_ALL_ACCESS
, req
->pinherit
);
946 reply
->thandle
= alloc_handle( current
->process
, info
->thread
,
947 THREAD_ALL_ACCESS
, req
->tinherit
);
948 reply
->success
= is_process_init_done( info
->process
);
949 release_object( info
);
961 /* Retrieve the new process startup info */
962 DECL_HANDLER(get_startup_info
)
964 struct startup_info
*info
;
966 if ((info
= current
->process
->startup_info
))
968 size_t size
= info
->data_size
;
969 if (size
> get_reply_max_size()) size
= get_reply_max_size();
971 /* we return the data directly without making a copy so this can only be called once */
972 set_reply_data_ptr( info
->data
, size
);
979 /* initialize a new process */
980 DECL_HANDLER(init_process
)
982 if (current
->unix_pid
== -1)
984 fatal_protocol_error( current
, "init_process: init_thread not called yet\n" );
987 if (current
->process
->startup_info
)
989 fatal_protocol_error( current
, "init_process: called twice\n" );
992 if (!req
->peb
|| (unsigned int)req
->peb
% sizeof(int))
994 fatal_protocol_error( current
, "init_process: bad peb address\n" );
997 if (!req
->ldt_copy
|| (unsigned int)req
->ldt_copy
% sizeof(int))
999 fatal_protocol_error( current
, "init_process: bad ldt_copy address\n" );
1002 reply
->info_size
= 0;
1003 current
->process
->peb
= req
->peb
;
1004 current
->process
->ldt_copy
= req
->ldt_copy
;
1005 current
->process
->startup_info
= init_process( reply
);
1008 /* signal the end of the process initialization */
1009 DECL_HANDLER(init_process_done
)
1011 struct file
*file
= NULL
;
1012 struct process
*process
= current
->process
;
1014 if (is_process_init_done(process
))
1016 fatal_protocol_error( current
, "init_process_done: called twice\n" );
1021 fatal_protocol_error( current
, "init_process_done: module base address cannot be 0\n" );
1024 process
->exe
.base
= req
->module
;
1025 process
->exe
.size
= req
->module_size
;
1026 process
->exe
.name
= req
->name
;
1028 if (req
->exe_file
) file
= get_file_obj( process
, req
->exe_file
, GENERIC_READ
);
1029 if (process
->exe
.file
) release_object( process
->exe
.file
);
1030 process
->exe
.file
= file
;
1032 if ((process
->exe
.namelen
= get_req_data_size()))
1033 process
->exe
.filename
= memdup( get_req_data(), process
->exe
.namelen
);
1035 generate_startup_debug_events( process
, req
->entry
);
1036 set_process_startup_state( process
, STARTUP_DONE
);
1038 if (req
->gui
) process
->idle_event
= create_event( NULL
, 0, 1, 0 );
1039 if (current
->suspend
+ process
->suspend
> 0) stop_thread( current
);
1040 if (process
->debugger
) set_process_debug_flag( process
, 1 );
1043 /* open a handle to a process */
1044 DECL_HANDLER(open_process
)
1046 struct process
*process
= get_process_from_id( req
->pid
);
1050 reply
->handle
= alloc_handle( current
->process
, process
, req
->access
, req
->inherit
);
1051 release_object( process
);
1055 /* terminate a process */
1056 DECL_HANDLER(terminate_process
)
1058 struct process
*process
;
1060 if ((process
= get_process_from_handle( req
->handle
, PROCESS_TERMINATE
)))
1062 reply
->self
= (current
->process
== process
);
1063 kill_process( process
, current
, req
->exit_code
);
1064 release_object( process
);
1068 /* fetch information about a process */
1069 DECL_HANDLER(get_process_info
)
1071 struct process
*process
;
1073 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1075 reply
->pid
= get_process_id( process
);
1076 reply
->ppid
= process
->parent
? get_process_id( process
->parent
) : 0;
1077 reply
->exit_code
= process
->exit_code
;
1078 reply
->priority
= process
->priority
;
1079 reply
->process_affinity
= process
->affinity
;
1080 reply
->system_affinity
= 1;
1081 reply
->peb
= process
->peb
;
1082 release_object( process
);
1086 /* set information about a process */
1087 DECL_HANDLER(set_process_info
)
1089 struct process
*process
;
1091 if ((process
= get_process_from_handle( req
->handle
, PROCESS_SET_INFORMATION
)))
1093 if (req
->mask
& SET_PROCESS_INFO_PRIORITY
) process
->priority
= req
->priority
;
1094 if (req
->mask
& SET_PROCESS_INFO_AFFINITY
)
1096 if (req
->affinity
!= 1) set_error( STATUS_INVALID_PARAMETER
);
1097 else process
->affinity
= req
->affinity
;
1099 release_object( process
);
1103 /* read data from a process address space */
1104 DECL_HANDLER(read_process_memory
)
1106 struct process
*process
;
1107 size_t len
= get_reply_max_size();
1109 if (!(process
= get_process_from_handle( req
->handle
, PROCESS_VM_READ
))) return;
1113 unsigned int start_offset
= (unsigned int)req
->addr
% sizeof(int);
1114 unsigned int nb_ints
= (len
+ start_offset
+ sizeof(int) - 1) / sizeof(int);
1115 const int *start
= (int *)((char *)req
->addr
- start_offset
);
1116 int *buffer
= mem_alloc( nb_ints
* sizeof(int) );
1119 if (read_process_memory( process
, start
, nb_ints
, buffer
))
1121 /* move start of requested data to start of buffer */
1122 if (start_offset
) memmove( buffer
, (char *)buffer
+ start_offset
, len
);
1123 set_reply_data_ptr( buffer
, len
);
1128 release_object( process
);
1131 /* write data to a process address space */
1132 DECL_HANDLER(write_process_memory
)
1134 struct process
*process
;
1136 if ((process
= get_process_from_handle( req
->handle
, PROCESS_VM_WRITE
)))
1138 size_t len
= get_req_data_size();
1139 if ((len
% sizeof(int)) || ((unsigned int)req
->addr
% sizeof(int)))
1140 set_error( STATUS_INVALID_PARAMETER
);
1143 if (len
) write_process_memory( process
, req
->addr
, len
/ sizeof(int),
1144 req
->first_mask
, req
->last_mask
, get_req_data() );
1146 release_object( process
);
1150 /* notify the server that a dll has been loaded */
1151 DECL_HANDLER(load_dll
)
1153 struct process_dll
*dll
;
1154 struct file
*file
= NULL
;
1156 if (req
->handle
&& !(file
= get_file_obj( current
->process
, req
->handle
, GENERIC_READ
)))
1159 if ((dll
= process_load_dll( current
->process
, file
, req
->base
,
1160 get_req_data(), get_req_data_size() )))
1162 dll
->size
= req
->size
;
1163 dll
->dbg_offset
= req
->dbg_offset
;
1164 dll
->dbg_size
= req
->dbg_size
;
1165 dll
->name
= req
->name
;
1166 /* only generate event if initialization is done */
1167 if (is_process_init_done( current
->process
))
1168 generate_debug_event( current
, LOAD_DLL_DEBUG_EVENT
, dll
);
1170 if (file
) release_object( file
);
1173 /* notify the server that a dll is being unloaded */
1174 DECL_HANDLER(unload_dll
)
1176 process_unload_dll( current
->process
, req
->base
);
1179 /* retrieve information about a module in a process */
1180 DECL_HANDLER(get_dll_info
)
1182 struct process
*process
;
1184 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1186 struct process_dll
*dll
= find_process_dll( process
, req
->base_address
);
1190 reply
->size
= dll
->size
;
1191 reply
->entry_point
= NULL
; /* FIXME */
1194 size_t len
= min( dll
->namelen
, get_reply_max_size() );
1195 set_reply_data( dll
->filename
, len
);
1199 set_error( STATUS_DLL_NOT_FOUND
);
1201 release_object( process
);
1205 /* wait for a process to start waiting on input */
1206 /* FIXME: only returns event for now, wait is done in the client */
1207 DECL_HANDLER(wait_input_idle
)
1209 struct process
*process
;
1212 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1214 if (process
->idle_event
&& process
!= current
->process
&& process
->queue
!= current
->queue
)
1215 reply
->event
= alloc_handle( current
->process
, process
->idle_event
,
1216 EVENT_ALL_ACCESS
, 0 );
1217 release_object( process
);