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"
31 #ifdef HAVE_SYS_SOCKET_H
32 # include <sys/socket.h>
46 /* process structure */
48 static struct process
*first_process
;
49 static int running_processes
;
51 /* process operations */
53 static void process_dump( struct object
*obj
, int verbose
);
54 static int process_signaled( struct object
*obj
, struct thread
*thread
);
55 static void process_poll_event( struct fd
*fd
, int event
);
56 static void process_destroy( struct object
*obj
);
58 static const struct object_ops process_ops
=
60 sizeof(struct process
), /* size */
61 process_dump
, /* dump */
62 add_queue
, /* add_queue */
63 remove_queue
, /* remove_queue */
64 process_signaled
, /* signaled */
65 no_satisfied
, /* satisfied */
66 no_get_fd
, /* get_fd */
67 process_destroy
/* destroy */
70 static const struct fd_ops process_fd_ops
=
72 NULL
, /* get_poll_events */
73 process_poll_event
, /* poll_event */
75 no_get_file_info
, /* get_file_info */
76 no_queue_async
/* queue_async */
79 /* process startup info */
83 struct object obj
; /* object header */
84 struct list entry
; /* entry in list of startup infos */
85 int inherit_all
; /* inherit all handles from parent */
86 int use_handles
; /* use stdio handles */
87 int create_flags
; /* creation flags */
88 int unix_pid
; /* Unix pid of new process */
89 obj_handle_t hstdin
; /* handle for stdin */
90 obj_handle_t hstdout
; /* handle for stdout */
91 obj_handle_t hstderr
; /* handle for stderr */
92 struct file
*exe_file
; /* file handle for main exe */
93 struct thread
*owner
; /* owner thread (the one that created the new process) */
94 struct process
*process
; /* created process */
95 struct thread
*thread
; /* created thread */
96 size_t data_size
; /* size of startup data */
97 startup_info_t
*data
; /* data for startup info */
100 static void startup_info_dump( struct object
*obj
, int verbose
);
101 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
);
102 static void startup_info_destroy( struct object
*obj
);
104 static const struct object_ops startup_info_ops
=
106 sizeof(struct startup_info
), /* size */
107 startup_info_dump
, /* dump */
108 add_queue
, /* add_queue */
109 remove_queue
, /* remove_queue */
110 startup_info_signaled
, /* signaled */
111 no_satisfied
, /* satisfied */
112 no_get_fd
, /* get_fd */
113 startup_info_destroy
/* destroy */
117 static struct list startup_info_list
= LIST_INIT(startup_info_list
);
121 void *ptr
; /* entry ptr */
122 unsigned int next
; /* next free entry */
125 static struct ptid_entry
*ptid_entries
; /* array of ptid entries */
126 static unsigned int used_ptid_entries
; /* number of entries in use */
127 static unsigned int alloc_ptid_entries
; /* number of allocated entries */
128 static unsigned int next_free_ptid
; /* next free entry */
129 static unsigned int last_free_ptid
; /* last free entry */
131 #define PTID_OFFSET 8 /* offset for first ptid value */
133 /* allocate a new process or thread id */
134 unsigned int alloc_ptid( void *ptr
)
136 struct ptid_entry
*entry
;
139 if (used_ptid_entries
< alloc_ptid_entries
)
141 id
= used_ptid_entries
+ PTID_OFFSET
;
142 entry
= &ptid_entries
[used_ptid_entries
++];
144 else if (next_free_ptid
)
147 entry
= &ptid_entries
[id
- PTID_OFFSET
];
148 if (!(next_free_ptid
= entry
->next
)) last_free_ptid
= 0;
150 else /* need to grow the array */
152 unsigned int count
= alloc_ptid_entries
+ (alloc_ptid_entries
/ 2);
153 if (!count
) count
= 64;
154 if (!(entry
= realloc( ptid_entries
, count
* sizeof(*entry
) )))
156 set_error( STATUS_NO_MEMORY
);
159 ptid_entries
= entry
;
160 alloc_ptid_entries
= count
;
161 id
= used_ptid_entries
+ PTID_OFFSET
;
162 entry
= &ptid_entries
[used_ptid_entries
++];
169 /* free a process or thread id */
170 void free_ptid( unsigned int id
)
172 struct ptid_entry
*entry
= &ptid_entries
[id
- PTID_OFFSET
];
177 /* append to end of free list so that we don't reuse it too early */
178 if (last_free_ptid
) ptid_entries
[last_free_ptid
- PTID_OFFSET
].next
= id
;
179 else next_free_ptid
= id
;
184 /* retrieve the pointer corresponding to a process or thread id */
185 void *get_ptid_entry( unsigned int id
)
187 if (id
< PTID_OFFSET
) return NULL
;
188 if (id
- PTID_OFFSET
>= used_ptid_entries
) return NULL
;
189 return ptid_entries
[id
- PTID_OFFSET
].ptr
;
192 /* set the state of the process startup info */
193 static void set_process_startup_state( struct process
*process
, enum startup_state state
)
195 if (process
->startup_state
== STARTUP_IN_PROGRESS
) process
->startup_state
= state
;
196 if (process
->startup_info
)
198 wake_up( &process
->startup_info
->obj
, 0 );
199 release_object( process
->startup_info
);
200 process
->startup_info
= NULL
;
204 /* set the console and stdio handles for a newly created process */
205 static int set_process_console( struct process
*process
, struct thread
*parent_thread
,
206 struct startup_info
*info
, struct init_process_reply
*reply
)
208 if (process
->create_flags
& CREATE_NEW_CONSOLE
)
210 /* let the process init do the allocation */
213 else if (info
&& !(process
->create_flags
& DETACHED_PROCESS
))
215 /* FIXME: some better error checking should be done...
216 * like if hConOut and hConIn are console handles, then they should be on the same
219 inherit_console( parent_thread
, process
,
220 (info
->inherit_all
|| info
->use_handles
) ? info
->hstdin
: 0 );
224 if (!info
->inherit_all
&& !info
->use_handles
)
226 /* duplicate the handle from the parent into this process */
227 reply
->hstdin
= duplicate_handle( parent_thread
->process
, info
->hstdin
, process
,
228 0, TRUE
, DUPLICATE_SAME_ACCESS
);
229 reply
->hstdout
= duplicate_handle( parent_thread
->process
, info
->hstdout
, process
,
230 0, TRUE
, DUPLICATE_SAME_ACCESS
);
231 reply
->hstderr
= duplicate_handle( parent_thread
->process
, info
->hstderr
, process
,
232 0, TRUE
, DUPLICATE_SAME_ACCESS
);
236 reply
->hstdin
= info
->hstdin
;
237 reply
->hstdout
= info
->hstdout
;
238 reply
->hstderr
= info
->hstderr
;
243 if (process
->console
)
245 reply
->hstdin
= alloc_handle( process
, process
->console
,
246 GENERIC_READ
| GENERIC_WRITE
| SYNCHRONIZE
, 1 );
247 reply
->hstdout
= alloc_handle( process
, process
->console
->active
,
248 GENERIC_READ
| GENERIC_WRITE
, 1 );
249 reply
->hstderr
= alloc_handle( process
, process
->console
->active
,
250 GENERIC_READ
| GENERIC_WRITE
, 1 );
254 /* no parent, let the caller decide what to do */
255 reply
->hstdin
= reply
->hstdout
= reply
->hstderr
= 0;
258 /* some handles above may have been invalid; this is not an error */
259 if (get_error() == STATUS_INVALID_HANDLE
) clear_error();
263 /* create a new process and its main thread */
264 struct thread
*create_process( int fd
)
266 struct process
*process
;
267 struct thread
*thread
= NULL
;
270 if (!(process
= alloc_object( &process_ops
))) goto error
;
271 process
->next
= NULL
;
272 process
->prev
= NULL
;
273 process
->parent
= NULL
;
274 process
->thread_list
= NULL
;
275 process
->debugger
= NULL
;
276 process
->handles
= NULL
;
277 process
->msg_fd
= NULL
;
278 process
->exit_code
= STILL_ACTIVE
;
279 process
->running_threads
= 0;
280 process
->priority
= NORMAL_PRIORITY_CLASS
;
281 process
->affinity
= 1;
282 process
->suspend
= 0;
283 process
->create_flags
= 0;
284 process
->console
= NULL
;
285 process
->startup_state
= STARTUP_IN_PROGRESS
;
286 process
->startup_info
= NULL
;
287 process
->idle_event
= NULL
;
288 process
->queue
= NULL
;
289 process
->atom_table
= NULL
;
290 process
->ldt_copy
= NULL
;
291 process
->exe
.next
= NULL
;
292 process
->exe
.prev
= NULL
;
293 process
->exe
.file
= NULL
;
294 process
->exe
.dbg_offset
= 0;
295 process
->exe
.dbg_size
= 0;
296 process
->exe
.namelen
= 0;
297 process
->exe
.filename
= NULL
;
298 process
->group_id
= 0;
300 gettimeofday( &process
->start_time
, NULL
);
301 if ((process
->next
= first_process
) != NULL
) process
->next
->prev
= process
;
302 first_process
= process
;
304 if (!(process
->id
= alloc_ptid( process
))) goto error
;
305 if (!(process
->msg_fd
= create_anonymous_fd( &process_fd_ops
, fd
, &process
->obj
))) goto error
;
307 /* create the main thread */
308 if (pipe( request_pipe
) == -1)
313 if (send_client_fd( process
, request_pipe
[1], 0 ) == -1)
315 close( request_pipe
[0] );
316 close( request_pipe
[1] );
319 close( request_pipe
[1] );
320 if (!(thread
= create_thread( request_pipe
[0], process
))) goto error
;
322 set_fd_events( process
->msg_fd
, POLLIN
); /* start listening to events */
323 release_object( process
);
327 if (process
) release_object( process
);
328 /* if we failed to start our first process, close everything down */
329 if (!running_processes
) close_master_socket();
333 /* find the startup info for a given Unix process */
334 inline static struct startup_info
*find_startup_info( int unix_pid
)
338 LIST_FOR_EACH( ptr
, &startup_info_list
)
340 struct startup_info
*info
= LIST_ENTRY( ptr
, struct startup_info
, entry
);
341 if (info
->unix_pid
== unix_pid
) return info
;
346 /* initialize the current process and fill in the request */
347 static struct startup_info
*init_process( struct init_process_reply
*reply
)
349 struct process
*process
= current
->process
;
350 struct thread
*parent_thread
= NULL
;
351 struct process
*parent
= NULL
;
352 struct startup_info
*info
= find_startup_info( current
->unix_pid
);
358 fatal_protocol_error( current
, "init_process: called twice?\n" );
361 parent_thread
= info
->owner
;
362 parent
= parent_thread
->process
;
363 process
->parent
= (struct process
*)grab_object( parent
);
366 /* set the process flags */
367 process
->create_flags
= info
? info
->create_flags
: 0;
369 /* create the handle table */
370 if (info
&& info
->inherit_all
)
371 process
->handles
= copy_handle_table( process
, parent
);
373 process
->handles
= alloc_handle_table( process
, 0 );
374 if (!process
->handles
) return NULL
;
376 /* retrieve the main exe file */
378 if (info
&& info
->exe_file
)
380 process
->exe
.file
= (struct file
*)grab_object( info
->exe_file
);
381 if (!(reply
->exe_file
= alloc_handle( process
, process
->exe
.file
, GENERIC_READ
, 0 )))
385 /* set the process console */
386 if (!set_process_console( process
, parent_thread
, info
, reply
)) return NULL
;
388 process
->group_id
= get_process_id( process
);
391 /* attach to the debugger if requested */
392 if (process
->create_flags
& (DEBUG_PROCESS
| DEBUG_ONLY_THIS_PROCESS
))
393 set_process_debugger( process
, parent_thread
);
394 else if (parent
->debugger
&& !(parent
->create_flags
& DEBUG_ONLY_THIS_PROCESS
))
395 set_process_debugger( process
, parent
->debugger
);
396 if (!(process
->create_flags
& CREATE_NEW_PROCESS_GROUP
))
397 process
->group_id
= parent
->group_id
;
400 /* thread will be actually suspended in init_done */
401 if (process
->create_flags
& CREATE_SUSPENDED
) current
->suspend
++;
405 reply
->info_size
= info
->data_size
;
406 info
->process
= (struct process
*)grab_object( process
);
407 info
->thread
= (struct thread
*)grab_object( current
);
409 reply
->create_flags
= process
->create_flags
;
410 reply
->server_start
= server_start_ticks
;
411 return info
? (struct startup_info
*)grab_object( info
) : NULL
;
414 /* destroy a process when its refcount is 0 */
415 static void process_destroy( struct object
*obj
)
417 struct process
*process
= (struct process
*)obj
;
418 assert( obj
->ops
== &process_ops
);
420 /* we can't have a thread remaining */
421 assert( !process
->thread_list
);
423 set_process_startup_state( process
, STARTUP_ABORTED
);
424 if (process
->console
) release_object( process
->console
);
425 if (process
->parent
) release_object( process
->parent
);
426 if (process
->msg_fd
) release_object( process
->msg_fd
);
427 if (process
->next
) process
->next
->prev
= process
->prev
;
428 if (process
->prev
) process
->prev
->next
= process
->next
;
429 else first_process
= process
->next
;
430 if (process
->idle_event
) release_object( process
->idle_event
);
431 if (process
->queue
) release_object( process
->queue
);
432 if (process
->atom_table
) release_object( process
->atom_table
);
433 if (process
->exe
.file
) release_object( process
->exe
.file
);
434 if (process
->exe
.filename
) free( process
->exe
.filename
);
435 if (process
->id
) free_ptid( process
->id
);
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 next=%p prev=%p handles=%p\n",
445 process
->id
, process
->next
, process
->prev
, process
->handles
);
448 static int process_signaled( struct object
*obj
, struct thread
*thread
)
450 struct process
*process
= (struct process
*)obj
;
451 return !process
->running_threads
;
454 static void process_poll_event( struct fd
*fd
, int event
)
456 struct process
*process
= get_fd_user( fd
);
457 assert( process
->obj
.ops
== &process_ops
);
459 if (event
& (POLLERR
| POLLHUP
)) set_fd_events( fd
, -1 );
460 else if (event
& POLLIN
) receive_fd( process
);
463 static void startup_info_destroy( struct object
*obj
)
465 struct startup_info
*info
= (struct startup_info
*)obj
;
466 assert( obj
->ops
== &startup_info_ops
);
467 list_remove( &info
->entry
);
468 if (info
->data
) free( info
->data
);
469 if (info
->exe_file
) release_object( info
->exe_file
);
470 if (info
->process
) release_object( info
->process
);
471 if (info
->thread
) release_object( info
->thread
);
472 if (info
->owner
) release_object( info
->owner
);
475 static void startup_info_dump( struct object
*obj
, int verbose
)
477 struct startup_info
*info
= (struct startup_info
*)obj
;
478 assert( obj
->ops
== &startup_info_ops
);
480 fprintf( stderr
, "Startup info flags=%x in=%p out=%p err=%p\n",
481 info
->create_flags
, info
->hstdin
, info
->hstdout
, info
->hstderr
);
484 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
)
486 struct startup_info
*info
= (struct startup_info
*)obj
;
487 return info
->process
&& is_process_init_done(info
->process
);
490 /* get a process from an id (and increment the refcount) */
491 struct process
*get_process_from_id( process_id_t id
)
493 struct object
*obj
= get_ptid_entry( id
);
495 if (obj
&& obj
->ops
== &process_ops
) return (struct process
*)grab_object( obj
);
496 set_error( STATUS_INVALID_PARAMETER
);
500 /* get a process from a handle (and increment the refcount) */
501 struct process
*get_process_from_handle( obj_handle_t handle
, unsigned int access
)
503 return (struct process
*)get_handle_obj( current
->process
, handle
,
504 access
, &process_ops
);
507 /* add a dll to a process list */
508 static struct process_dll
*process_load_dll( struct process
*process
, struct file
*file
,
509 void *base
, const char *filename
, size_t name_len
)
511 struct process_dll
*dll
;
513 /* make sure we don't already have one with the same base address */
514 for (dll
= process
->exe
.next
; dll
; dll
= dll
->next
) if (dll
->base
== base
)
516 set_error( STATUS_INVALID_PARAMETER
);
520 if ((dll
= mem_alloc( sizeof(*dll
) )))
522 dll
->prev
= &process
->exe
;
525 dll
->filename
= NULL
;
526 dll
->namelen
= name_len
;
527 if (name_len
&& !(dll
->filename
= memdup( filename
, name_len
)))
532 if (file
) dll
->file
= (struct file
*)grab_object( file
);
533 if ((dll
->next
= process
->exe
.next
)) dll
->next
->prev
= dll
;
534 process
->exe
.next
= dll
;
539 /* remove a dll from a process list */
540 static void process_unload_dll( struct process
*process
, void *base
)
542 struct process_dll
*dll
;
544 for (dll
= process
->exe
.next
; dll
; dll
= dll
->next
)
546 if (dll
->base
== base
)
548 if (dll
->file
) release_object( dll
->file
);
549 if (dll
->next
) dll
->next
->prev
= dll
->prev
;
550 if (dll
->prev
) dll
->prev
->next
= dll
->next
;
551 if (dll
->filename
) free( dll
->filename
);
553 generate_debug_event( current
, UNLOAD_DLL_DEBUG_EVENT
, base
);
557 set_error( STATUS_INVALID_PARAMETER
);
560 /* kill all processes */
561 void kill_all_processes( struct process
*skip
, int exit_code
)
565 struct process
*process
= first_process
;
567 while (process
&& (!process
->running_threads
|| process
== skip
))
568 process
= process
->next
;
570 kill_process( process
, NULL
, exit_code
);
574 /* kill all processes being attached to a console renderer */
575 void kill_console_processes( struct thread
*renderer
, int exit_code
)
577 for (;;) /* restart from the beginning of the list every time */
579 struct process
*process
= first_process
;
581 /* find the first process being attached to 'renderer' and still running */
583 (process
== renderer
->process
|| !process
->console
||
584 process
->console
->renderer
!= renderer
|| !process
->running_threads
))
586 process
= process
->next
;
589 kill_process( process
, NULL
, exit_code
);
593 /* a process has been killed (i.e. its last thread died) */
594 static void process_killed( struct process
*process
)
596 assert( !process
->thread_list
);
597 gettimeofday( &process
->end_time
, NULL
);
598 if (process
->handles
) release_object( process
->handles
);
599 process
->handles
= NULL
;
601 /* close the console attached to this process, if any */
602 free_console( process
);
604 while (process
->exe
.next
)
606 struct process_dll
*dll
= process
->exe
.next
;
607 process
->exe
.next
= dll
->next
;
608 if (dll
->file
) release_object( dll
->file
);
609 if (dll
->filename
) free( dll
->filename
);
612 set_process_startup_state( process
, STARTUP_ABORTED
);
613 if (process
->exe
.file
) release_object( process
->exe
.file
);
614 process
->exe
.file
= NULL
;
615 wake_up( &process
->obj
, 0 );
616 if (!--running_processes
) close_master_socket();
619 /* add a thread to a process running threads list */
620 void add_process_thread( struct process
*process
, struct thread
*thread
)
622 thread
->proc_next
= process
->thread_list
;
623 thread
->proc_prev
= NULL
;
624 if (thread
->proc_next
) thread
->proc_next
->proc_prev
= thread
;
625 process
->thread_list
= thread
;
626 if (!process
->running_threads
++) running_processes
++;
627 grab_object( thread
);
630 /* remove a thread from a process running threads list */
631 void remove_process_thread( struct process
*process
, struct thread
*thread
)
633 assert( process
->running_threads
> 0 );
634 assert( process
->thread_list
);
636 if (thread
->proc_next
) thread
->proc_next
->proc_prev
= thread
->proc_prev
;
637 if (thread
->proc_prev
) thread
->proc_prev
->proc_next
= thread
->proc_next
;
638 else process
->thread_list
= thread
->proc_next
;
640 if (!--process
->running_threads
)
642 /* we have removed the last running thread, exit the process */
643 process
->exit_code
= thread
->exit_code
;
644 generate_debug_event( thread
, EXIT_PROCESS_DEBUG_EVENT
, process
);
645 process_killed( process
);
647 else generate_debug_event( thread
, EXIT_THREAD_DEBUG_EVENT
, thread
);
648 release_object( thread
);
651 /* suspend all the threads of a process */
652 void suspend_process( struct process
*process
)
654 if (!process
->suspend
++)
656 struct thread
*thread
= process
->thread_list
;
659 struct thread
*next
= thread
->proc_next
;
660 if (!thread
->suspend
) stop_thread( thread
);
666 /* resume all the threads of a process */
667 void resume_process( struct process
*process
)
669 assert (process
->suspend
> 0);
670 if (!--process
->suspend
)
672 struct thread
*thread
= process
->thread_list
;
675 struct thread
*next
= thread
->proc_next
;
676 if (!thread
->suspend
) wake_thread( thread
);
682 /* kill a process on the spot */
683 void kill_process( struct process
*process
, struct thread
*skip
, int exit_code
)
685 struct thread
*thread
= process
->thread_list
;
689 struct thread
*next
= thread
->proc_next
;
690 thread
->exit_code
= exit_code
;
691 if (thread
!= skip
) kill_thread( thread
, 1 );
696 /* kill all processes being debugged by a given thread */
697 void kill_debugged_processes( struct thread
*debugger
, int exit_code
)
699 for (;;) /* restart from the beginning of the list every time */
701 struct process
*process
= first_process
;
702 /* find the first process being debugged by 'debugger' and still running */
703 while (process
&& (process
->debugger
!= debugger
|| !process
->running_threads
))
704 process
= process
->next
;
705 if (!process
) return;
706 process
->debugger
= NULL
;
707 kill_process( process
, NULL
, exit_code
);
712 /* detach a debugger from all its debuggees */
713 void detach_debugged_processes( struct thread
*debugger
)
715 struct process
*process
;
716 for (process
= first_process
; process
; process
= process
->next
)
718 if (process
->debugger
== debugger
&& process
->running_threads
)
720 debugger_detach( process
, debugger
);
726 void enum_processes( int (*cb
)(struct process
*, void*), void *user
)
728 struct process
*process
;
729 for (process
= first_process
; process
; process
= process
->next
)
731 if ((cb
)(process
, user
)) break;
736 /* get all information about a process */
737 static void get_process_info( struct process
*process
, struct get_process_info_reply
*reply
)
739 reply
->pid
= get_process_id( process
);
740 reply
->debugged
= (process
->debugger
!= 0);
741 reply
->exit_code
= process
->exit_code
;
742 reply
->priority
= process
->priority
;
743 reply
->process_affinity
= process
->affinity
;
744 reply
->system_affinity
= 1;
747 /* set all information about a process */
748 static void set_process_info( struct process
*process
,
749 const struct set_process_info_request
*req
)
751 if (req
->mask
& SET_PROCESS_INFO_PRIORITY
)
752 process
->priority
= req
->priority
;
753 if (req
->mask
& SET_PROCESS_INFO_AFFINITY
)
755 if (req
->affinity
!= 1) set_error( STATUS_INVALID_PARAMETER
);
756 else process
->affinity
= req
->affinity
;
760 /* read data from a process memory space */
761 /* len is the total size (in ints) */
762 static int read_process_memory( struct process
*process
, const int *addr
, size_t len
, int *dest
)
764 struct thread
*thread
= process
->thread_list
;
766 assert( !((unsigned int)addr
% sizeof(int)) ); /* address must be aligned */
768 if (!thread
) /* process is dead */
770 set_error( STATUS_ACCESS_DENIED
);
773 if (suspend_for_ptrace( thread
))
777 if (read_thread_int( thread
, addr
++, dest
++ ) == -1) break;
780 resume_after_ptrace( thread
);
785 /* make sure we can write to the whole address range */
786 /* len is the total size (in ints) */
787 static int check_process_write_access( struct thread
*thread
, int *addr
, size_t len
)
789 int page
= get_page_size() / sizeof(int);
793 if (write_thread_int( thread
, addr
, 0, 0 ) == -1) return 0;
794 if (len
<= page
) break;
798 return (write_thread_int( thread
, addr
+ len
- 1, 0, 0 ) != -1);
801 /* write data to a process memory space */
802 /* len is the total size (in ints), max is the size we can actually read from the input buffer */
803 /* we check the total size for write permissions */
804 static void write_process_memory( struct process
*process
, int *addr
, size_t len
,
805 unsigned int first_mask
, unsigned int last_mask
, const int *src
)
807 struct thread
*thread
= process
->thread_list
;
809 assert( !((unsigned int)addr
% sizeof(int) )); /* address must be aligned */
811 if (!thread
) /* process is dead */
813 set_error( STATUS_ACCESS_DENIED
);
816 if (suspend_for_ptrace( thread
))
818 if (!check_process_write_access( thread
, addr
, len
))
820 set_error( STATUS_ACCESS_DENIED
);
823 /* first word is special */
826 if (write_thread_int( thread
, addr
++, *src
++, first_mask
) == -1) goto done
;
829 else last_mask
&= first_mask
;
833 if (write_thread_int( thread
, addr
++, *src
++, ~0 ) == -1) goto done
;
837 /* last word is special too */
838 if (write_thread_int( thread
, addr
, *src
, last_mask
) == -1) goto done
;
841 resume_after_ptrace( thread
);
845 /* take a snapshot of currently running processes */
846 struct process_snapshot
*process_snap( int *count
)
848 struct process_snapshot
*snapshot
, *ptr
;
849 struct process
*process
;
850 if (!running_processes
) return NULL
;
851 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * running_processes
)))
854 for (process
= first_process
; process
; process
= process
->next
)
856 if (!process
->running_threads
) continue;
857 ptr
->process
= process
;
858 ptr
->threads
= process
->running_threads
;
859 ptr
->count
= process
->obj
.refcount
;
860 ptr
->priority
= process
->priority
;
861 grab_object( process
);
864 *count
= running_processes
;
868 /* take a snapshot of the modules of a process */
869 struct module_snapshot
*module_snap( struct process
*process
, int *count
)
871 struct module_snapshot
*snapshot
, *ptr
;
872 struct process_dll
*dll
;
875 for (dll
= &process
->exe
; dll
; dll
= dll
->next
) total
++;
876 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * total
))) return NULL
;
878 for (ptr
= snapshot
, dll
= &process
->exe
; dll
; dll
= dll
->next
, ptr
++)
880 ptr
->base
= dll
->base
;
881 ptr
->size
= dll
->size
;
882 ptr
->namelen
= dll
->namelen
;
883 ptr
->filename
= memdup( dll
->filename
, dll
->namelen
);
890 /* create a new process */
891 DECL_HANDLER(new_process
)
893 struct startup_info
*info
;
895 /* build the startup info for a new process */
896 if (!(info
= alloc_object( &startup_info_ops
))) return;
897 list_add_head( &startup_info_list
, &info
->entry
);
898 info
->inherit_all
= req
->inherit_all
;
899 info
->use_handles
= req
->use_handles
;
900 info
->create_flags
= req
->create_flags
;
901 info
->unix_pid
= req
->unix_pid
;
902 info
->hstdin
= req
->hstdin
;
903 info
->hstdout
= req
->hstdout
;
904 info
->hstderr
= req
->hstderr
;
905 info
->exe_file
= NULL
;
906 info
->owner
= (struct thread
*)grab_object( current
);
907 info
->process
= NULL
;
909 info
->data_size
= get_req_data_size();
913 !(info
->exe_file
= get_file_obj( current
->process
, req
->exe_file
, GENERIC_READ
)))
916 if (!(info
->data
= mem_alloc( info
->data_size
))) goto done
;
917 memcpy( info
->data
, get_req_data(), info
->data_size
);
918 reply
->info
= alloc_handle( current
->process
, info
, SYNCHRONIZE
, FALSE
);
921 release_object( info
);
924 /* Retrieve information about a newly started process */
925 DECL_HANDLER(get_new_process_info
)
927 struct startup_info
*info
;
929 if ((info
= (struct startup_info
*)get_handle_obj( current
->process
, req
->info
,
930 0, &startup_info_ops
)))
932 reply
->pid
= get_process_id( info
->process
);
933 reply
->tid
= get_thread_id( info
->thread
);
934 reply
->phandle
= alloc_handle( current
->process
, info
->process
,
935 PROCESS_ALL_ACCESS
, req
->pinherit
);
936 reply
->thandle
= alloc_handle( current
->process
, info
->thread
,
937 THREAD_ALL_ACCESS
, req
->tinherit
);
938 reply
->success
= is_process_init_done( info
->process
);
939 release_object( info
);
951 /* Retrieve the new process startup info */
952 DECL_HANDLER(get_startup_info
)
954 struct startup_info
*info
;
956 if ((info
= current
->process
->startup_info
))
958 size_t size
= info
->data_size
;
959 if (size
> get_reply_max_size()) size
= get_reply_max_size();
961 /* we return the data directly without making a copy so this can only be called once */
962 set_reply_data_ptr( info
->data
, size
);
969 /* initialize a new process */
970 DECL_HANDLER(init_process
)
972 if (current
->unix_pid
== -1)
974 fatal_protocol_error( current
, "init_process: init_thread not called yet\n" );
977 if (current
->process
->startup_info
)
979 fatal_protocol_error( current
, "init_process: called twice\n" );
982 reply
->info_size
= 0;
983 current
->process
->ldt_copy
= req
->ldt_copy
;
984 current
->process
->startup_info
= init_process( reply
);
987 /* signal the end of the process initialization */
988 DECL_HANDLER(init_process_done
)
990 struct file
*file
= NULL
;
991 struct process
*process
= current
->process
;
993 if (is_process_init_done(process
))
995 fatal_protocol_error( current
, "init_process_done: called twice\n" );
1000 fatal_protocol_error( current
, "init_process_done: module base address cannot be 0\n" );
1003 process
->exe
.base
= req
->module
;
1004 process
->exe
.size
= req
->module_size
;
1005 process
->exe
.name
= req
->name
;
1007 if (req
->exe_file
) file
= get_file_obj( process
, req
->exe_file
, GENERIC_READ
);
1008 if (process
->exe
.file
) release_object( process
->exe
.file
);
1009 process
->exe
.file
= file
;
1011 if ((process
->exe
.namelen
= get_req_data_size()))
1012 process
->exe
.filename
= memdup( get_req_data(), process
->exe
.namelen
);
1014 generate_startup_debug_events( process
, req
->entry
);
1015 set_process_startup_state( process
, STARTUP_DONE
);
1017 if (req
->gui
) process
->idle_event
= create_event( NULL
, 0, 1, 0 );
1018 if (current
->suspend
+ process
->suspend
> 0) stop_thread( current
);
1019 reply
->debugged
= (process
->debugger
!= 0);
1022 /* open a handle to a process */
1023 DECL_HANDLER(open_process
)
1025 struct process
*process
= get_process_from_id( req
->pid
);
1029 reply
->handle
= alloc_handle( current
->process
, process
, req
->access
, req
->inherit
);
1030 release_object( process
);
1034 /* terminate a process */
1035 DECL_HANDLER(terminate_process
)
1037 struct process
*process
;
1039 if ((process
= get_process_from_handle( req
->handle
, PROCESS_TERMINATE
)))
1041 reply
->self
= (current
->process
== process
);
1042 kill_process( process
, current
, req
->exit_code
);
1043 release_object( process
);
1047 /* fetch information about a process */
1048 DECL_HANDLER(get_process_info
)
1050 struct process
*process
;
1052 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1054 get_process_info( process
, reply
);
1055 release_object( process
);
1059 /* set information about a process */
1060 DECL_HANDLER(set_process_info
)
1062 struct process
*process
;
1064 if ((process
= get_process_from_handle( req
->handle
, PROCESS_SET_INFORMATION
)))
1066 set_process_info( process
, req
);
1067 release_object( process
);
1071 /* read data from a process address space */
1072 DECL_HANDLER(read_process_memory
)
1074 struct process
*process
;
1075 size_t len
= get_reply_max_size();
1077 if (!(process
= get_process_from_handle( req
->handle
, PROCESS_VM_READ
))) return;
1081 unsigned int start_offset
= (unsigned int)req
->addr
% sizeof(int);
1082 unsigned int nb_ints
= (len
+ start_offset
+ sizeof(int) - 1) / sizeof(int);
1083 const int *start
= (int *)((char *)req
->addr
- start_offset
);
1084 int *buffer
= mem_alloc( nb_ints
* sizeof(int) );
1087 if (read_process_memory( process
, start
, nb_ints
, buffer
))
1089 /* move start of requested data to start of buffer */
1090 if (start_offset
) memmove( buffer
, (char *)buffer
+ start_offset
, len
);
1091 set_reply_data_ptr( buffer
, len
);
1096 release_object( process
);
1099 /* write data to a process address space */
1100 DECL_HANDLER(write_process_memory
)
1102 struct process
*process
;
1104 if ((process
= get_process_from_handle( req
->handle
, PROCESS_VM_WRITE
)))
1106 size_t len
= get_req_data_size();
1107 if ((len
% sizeof(int)) || ((unsigned int)req
->addr
% sizeof(int)))
1108 set_error( STATUS_INVALID_PARAMETER
);
1111 if (len
) write_process_memory( process
, req
->addr
, len
/ sizeof(int),
1112 req
->first_mask
, req
->last_mask
, get_req_data() );
1114 release_object( process
);
1118 /* notify the server that a dll has been loaded */
1119 DECL_HANDLER(load_dll
)
1121 struct process_dll
*dll
;
1122 struct file
*file
= NULL
;
1125 !(file
= get_file_obj( current
->process
, req
->handle
, GENERIC_READ
))) return;
1127 if ((dll
= process_load_dll( current
->process
, file
, req
->base
,
1128 get_req_data(), get_req_data_size() )))
1130 dll
->size
= req
->size
;
1131 dll
->dbg_offset
= req
->dbg_offset
;
1132 dll
->dbg_size
= req
->dbg_size
;
1133 dll
->name
= req
->name
;
1134 /* only generate event if initialization is done */
1135 if (is_process_init_done( current
->process
))
1136 generate_debug_event( current
, LOAD_DLL_DEBUG_EVENT
, dll
);
1138 if (file
) release_object( file
);
1141 /* notify the server that a dll is being unloaded */
1142 DECL_HANDLER(unload_dll
)
1144 process_unload_dll( current
->process
, req
->base
);
1147 /* retrieve information about a module in a process */
1148 DECL_HANDLER(get_dll_info
)
1150 struct process
*process
;
1152 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1154 struct process_dll
*dll
;
1156 for (dll
= &process
->exe
; dll
; dll
= dll
->next
)
1158 if (dll
->base
== req
->base_address
)
1160 reply
->size
= dll
->size
;
1161 reply
->entry_point
= 0; /* FIXME */
1164 size_t len
= min( dll
->namelen
, get_reply_max_size() );
1165 set_reply_data( dll
->filename
, len
);
1171 set_error(STATUS_DLL_NOT_FOUND
);
1172 release_object( process
);
1176 /* wait for a process to start waiting on input */
1177 /* FIXME: only returns event for now, wait is done in the client */
1178 DECL_HANDLER(wait_input_idle
)
1180 struct process
*process
;
1183 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1185 if (process
->idle_event
&& process
!= current
->process
&& process
->queue
!= current
->queue
)
1186 reply
->event
= alloc_handle( current
->process
, process
->idle_event
,
1187 EVENT_ALL_ACCESS
, 0 );
1188 release_object( process
);