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
->exe
.file
= NULL
;
284 process
->exe
.dbg_offset
= 0;
285 process
->exe
.dbg_size
= 0;
286 process
->exe
.namelen
= 0;
287 process
->exe
.filename
= NULL
;
288 process
->group_id
= 0;
289 process
->token
= token_create_admin();
290 list_init( &process
->thread_list
);
291 list_init( &process
->locks
);
292 list_init( &process
->classes
);
293 list_init( &process
->dlls
);
295 gettimeofday( &process
->start_time
, NULL
);
296 list_add_head( &process_list
, &process
->entry
);
298 if (!(process
->id
= alloc_ptid( process
))) goto error
;
299 if (!(process
->msg_fd
= create_anonymous_fd( &process_fd_ops
, fd
, &process
->obj
))) goto error
;
301 /* create the main thread */
302 if (pipe( request_pipe
) == -1)
307 if (send_client_fd( process
, request_pipe
[1], 0 ) == -1)
309 close( request_pipe
[0] );
310 close( request_pipe
[1] );
313 close( request_pipe
[1] );
314 if (!(thread
= create_thread( request_pipe
[0], process
))) goto error
;
316 set_fd_events( process
->msg_fd
, POLLIN
); /* start listening to events */
317 release_object( process
);
321 if (process
) release_object( process
);
322 /* if we failed to start our first process, close everything down */
323 if (!running_processes
) close_master_socket();
327 /* find the startup info for a given Unix process */
328 inline static struct startup_info
*find_startup_info( int unix_pid
)
332 LIST_FOR_EACH( ptr
, &startup_info_list
)
334 struct startup_info
*info
= LIST_ENTRY( ptr
, struct startup_info
, entry
);
335 if (info
->unix_pid
== unix_pid
) return info
;
340 /* initialize the current process and fill in the request */
341 static struct startup_info
*init_process( struct init_process_reply
*reply
)
343 struct process
*process
= current
->process
;
344 struct thread
*parent_thread
= NULL
;
345 struct process
*parent
= NULL
;
346 struct startup_info
*info
= find_startup_info( current
->unix_pid
);
352 fatal_protocol_error( current
, "init_process: called twice?\n" );
355 parent_thread
= info
->owner
;
356 parent
= parent_thread
->process
;
357 process
->parent
= (struct process
*)grab_object( parent
);
360 /* set the process flags */
361 process
->create_flags
= info
? info
->create_flags
: 0;
363 /* create the handle table */
364 if (info
&& info
->inherit_all
)
365 process
->handles
= copy_handle_table( process
, parent
);
367 process
->handles
= alloc_handle_table( process
, 0 );
368 if (!process
->handles
) return NULL
;
370 /* retrieve the main exe file */
372 if (info
&& info
->exe_file
)
374 process
->exe
.file
= (struct file
*)grab_object( info
->exe_file
);
375 if (!(reply
->exe_file
= alloc_handle( process
, process
->exe
.file
, GENERIC_READ
, 0 )))
379 /* set the process console */
380 if (!set_process_console( process
, parent_thread
, info
, reply
)) return NULL
;
382 process
->group_id
= get_process_id( process
);
385 /* attach to the debugger if requested */
386 if (process
->create_flags
& (DEBUG_PROCESS
| DEBUG_ONLY_THIS_PROCESS
))
387 set_process_debugger( process
, parent_thread
);
388 else if (parent
->debugger
&& !(parent
->create_flags
& DEBUG_ONLY_THIS_PROCESS
))
389 set_process_debugger( process
, parent
->debugger
);
390 if (!(process
->create_flags
& CREATE_NEW_PROCESS_GROUP
))
391 process
->group_id
= parent
->group_id
;
394 /* thread will be actually suspended in init_done */
395 if (process
->create_flags
& CREATE_SUSPENDED
) current
->suspend
++;
399 reply
->info_size
= info
->data_size
;
400 info
->process
= (struct process
*)grab_object( process
);
401 info
->thread
= (struct thread
*)grab_object( current
);
403 reply
->create_flags
= process
->create_flags
;
404 reply
->server_start
= server_start_ticks
;
405 return info
? (struct startup_info
*)grab_object( info
) : NULL
;
408 /* destroy a process when its refcount is 0 */
409 static void process_destroy( struct object
*obj
)
411 struct process
*process
= (struct process
*)obj
;
412 assert( obj
->ops
== &process_ops
);
414 /* we can't have a thread remaining */
415 assert( list_empty( &process
->thread_list
));
417 set_process_startup_state( process
, STARTUP_ABORTED
);
418 if (process
->console
) release_object( process
->console
);
419 if (process
->parent
) release_object( process
->parent
);
420 if (process
->msg_fd
) release_object( process
->msg_fd
);
421 list_remove( &process
->entry
);
422 if (process
->idle_event
) release_object( process
->idle_event
);
423 if (process
->queue
) release_object( process
->queue
);
424 if (process
->exe
.file
) release_object( process
->exe
.file
);
425 if (process
->exe
.filename
) free( process
->exe
.filename
);
426 if (process
->id
) free_ptid( process
->id
);
427 if (process
->token
) release_object( process
->token
);
430 /* dump a process on stdout for debugging purposes */
431 static void process_dump( struct object
*obj
, int verbose
)
433 struct process
*process
= (struct process
*)obj
;
434 assert( obj
->ops
== &process_ops
);
436 fprintf( stderr
, "Process id=%04x handles=%p\n", process
->id
, process
->handles
);
439 static int process_signaled( struct object
*obj
, struct thread
*thread
)
441 struct process
*process
= (struct process
*)obj
;
442 return !process
->running_threads
;
445 static void process_poll_event( struct fd
*fd
, int event
)
447 struct process
*process
= get_fd_user( fd
);
448 assert( process
->obj
.ops
== &process_ops
);
450 if (event
& (POLLERR
| POLLHUP
)) set_fd_events( fd
, -1 );
451 else if (event
& POLLIN
) receive_fd( process
);
454 static void startup_info_destroy( struct object
*obj
)
456 struct startup_info
*info
= (struct startup_info
*)obj
;
457 assert( obj
->ops
== &startup_info_ops
);
458 list_remove( &info
->entry
);
459 if (info
->data
) free( info
->data
);
460 if (info
->exe_file
) release_object( info
->exe_file
);
461 if (info
->process
) release_object( info
->process
);
462 if (info
->thread
) release_object( info
->thread
);
463 if (info
->owner
) release_object( info
->owner
);
466 static void startup_info_dump( struct object
*obj
, int verbose
)
468 struct startup_info
*info
= (struct startup_info
*)obj
;
469 assert( obj
->ops
== &startup_info_ops
);
471 fprintf( stderr
, "Startup info flags=%x in=%p out=%p err=%p\n",
472 info
->create_flags
, info
->hstdin
, info
->hstdout
, info
->hstderr
);
475 static int startup_info_signaled( struct object
*obj
, struct thread
*thread
)
477 struct startup_info
*info
= (struct startup_info
*)obj
;
478 return info
->process
&& is_process_init_done(info
->process
);
481 /* get a process from an id (and increment the refcount) */
482 struct process
*get_process_from_id( process_id_t id
)
484 struct object
*obj
= get_ptid_entry( id
);
486 if (obj
&& obj
->ops
== &process_ops
) return (struct process
*)grab_object( obj
);
487 set_error( STATUS_INVALID_PARAMETER
);
491 /* get a process from a handle (and increment the refcount) */
492 struct process
*get_process_from_handle( obj_handle_t handle
, unsigned int access
)
494 return (struct process
*)get_handle_obj( current
->process
, handle
,
495 access
, &process_ops
);
498 /* find a dll from its base address */
499 static inline struct process_dll
*find_process_dll( struct process
*process
, void *base
)
501 struct process_dll
*dll
;
503 if (process
->exe
.base
== base
) return &process
->exe
;
505 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
507 if (dll
->base
== base
) return dll
;
512 /* add a dll to a process list */
513 static struct process_dll
*process_load_dll( struct process
*process
, struct file
*file
,
514 void *base
, const WCHAR
*filename
, size_t name_len
)
516 struct process_dll
*dll
;
518 /* make sure we don't already have one with the same base address */
519 if (find_process_dll( process
, base
))
521 set_error( STATUS_INVALID_PARAMETER
);
525 if ((dll
= mem_alloc( sizeof(*dll
) )))
529 dll
->filename
= NULL
;
530 dll
->namelen
= name_len
;
531 if (name_len
&& !(dll
->filename
= memdup( filename
, name_len
)))
536 if (file
) dll
->file
= (struct file
*)grab_object( file
);
537 list_add_head( &process
->dlls
, &dll
->entry
);
542 /* remove a dll from a process list */
543 static void process_unload_dll( struct process
*process
, void *base
)
545 struct process_dll
*dll
= find_process_dll( process
, base
);
547 if (dll
&& dll
!= &process
->exe
)
549 if (dll
->file
) release_object( dll
->file
);
550 if (dll
->filename
) free( dll
->filename
);
551 list_remove( &dll
->entry
);
553 generate_debug_event( current
, UNLOAD_DLL_DEBUG_EVENT
, base
);
555 else set_error( STATUS_INVALID_PARAMETER
);
558 /* kill all processes */
559 void kill_all_processes( struct process
*skip
, int exit_code
)
563 struct process
*process
;
565 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
567 if (process
== skip
) continue;
568 if (process
->running_threads
) break;
570 if (&process
->entry
== &process_list
) break; /* no process found */
571 kill_process( process
, NULL
, exit_code
);
575 /* kill all processes being attached to a console renderer */
576 void kill_console_processes( struct thread
*renderer
, int exit_code
)
578 for (;;) /* restart from the beginning of the list every time */
580 struct process
*process
;
582 /* find the first process being attached to 'renderer' and still running */
583 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
585 if (process
== renderer
->process
) continue;
586 if (!process
->running_threads
) continue;
587 if (process
->console
&& process
->console
->renderer
== renderer
) break;
589 if (&process
->entry
== &process_list
) break; /* no process found */
590 kill_process( process
, NULL
, exit_code
);
594 /* a process has been killed (i.e. its last thread died) */
595 static void process_killed( struct process
*process
)
599 assert( list_empty( &process
->thread_list
));
600 gettimeofday( &process
->end_time
, NULL
);
601 if (process
->handles
) release_object( process
->handles
);
602 process
->handles
= NULL
;
604 /* close the console attached to this process, if any */
605 free_console( process
);
607 while ((ptr
= list_head( &process
->dlls
)))
609 struct process_dll
*dll
= LIST_ENTRY( ptr
, struct process_dll
, entry
);
610 if (dll
->file
) release_object( dll
->file
);
611 if (dll
->filename
) free( dll
->filename
);
612 list_remove( &dll
->entry
);
615 destroy_process_classes( process
);
616 set_process_startup_state( process
, STARTUP_ABORTED
);
617 if (process
->exe
.file
) release_object( process
->exe
.file
);
618 process
->exe
.file
= NULL
;
619 wake_up( &process
->obj
, 0 );
620 if (!--running_processes
) close_master_socket();
623 /* add a thread to a process running threads list */
624 void add_process_thread( struct process
*process
, struct thread
*thread
)
626 list_add_head( &process
->thread_list
, &thread
->proc_entry
);
627 if (!process
->running_threads
++) running_processes
++;
628 grab_object( thread
);
631 /* remove a thread from a process running threads list */
632 void remove_process_thread( struct process
*process
, struct thread
*thread
)
634 assert( process
->running_threads
> 0 );
635 assert( !list_empty( &process
->thread_list
));
637 list_remove( &thread
->proc_entry
);
639 if (!--process
->running_threads
)
641 /* we have removed the last running thread, exit the process */
642 process
->exit_code
= thread
->exit_code
;
643 generate_debug_event( thread
, EXIT_PROCESS_DEBUG_EVENT
, process
);
644 process_killed( process
);
646 else generate_debug_event( thread
, EXIT_THREAD_DEBUG_EVENT
, thread
);
647 release_object( thread
);
650 /* suspend all the threads of a process */
651 void suspend_process( struct process
*process
)
653 if (!process
->suspend
++)
655 struct list
*ptr
, *next
;
657 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
659 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
660 if (!thread
->suspend
) stop_thread( thread
);
665 /* resume all the threads of a process */
666 void resume_process( struct process
*process
)
668 assert (process
->suspend
> 0);
669 if (!--process
->suspend
)
671 struct list
*ptr
, *next
;
673 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
675 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
676 if (!thread
->suspend
) wake_thread( thread
);
681 /* kill a process on the spot */
682 void kill_process( struct process
*process
, struct thread
*skip
, int exit_code
)
684 struct list
*ptr
, *next
;
686 LIST_FOR_EACH_SAFE( ptr
, next
, &process
->thread_list
)
688 struct thread
*thread
= LIST_ENTRY( ptr
, struct thread
, proc_entry
);
690 thread
->exit_code
= exit_code
;
691 if (thread
!= skip
) kill_thread( thread
, 1 );
695 /* kill all processes being debugged by a given thread */
696 void kill_debugged_processes( struct thread
*debugger
, int exit_code
)
698 for (;;) /* restart from the beginning of the list every time */
700 struct process
*process
;
702 /* find the first process being debugged by 'debugger' and still running */
703 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
705 if (!process
->running_threads
) continue;
706 if (process
->debugger
== debugger
) break;
708 if (&process
->entry
== &process_list
) break; /* no process found */
709 process
->debugger
= NULL
;
710 kill_process( process
, NULL
, exit_code
);
715 /* detach a debugger from all its debuggees */
716 void detach_debugged_processes( struct thread
*debugger
)
718 struct process
*process
;
720 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
722 if (process
->debugger
== debugger
&& process
->running_threads
)
724 debugger_detach( process
, debugger
);
730 void enum_processes( int (*cb
)(struct process
*, void*), void *user
)
732 struct list
*ptr
, *next
;
734 LIST_FOR_EACH_SAFE( ptr
, next
, &process_list
)
736 struct process
*process
= LIST_ENTRY( ptr
, struct process
, entry
);
737 if ((cb
)(process
, user
)) break;
742 /* read data from a process memory space */
743 /* len is the total size (in ints) */
744 static int read_process_memory( struct process
*process
, const int *addr
, size_t len
, int *dest
)
746 struct thread
*thread
= get_process_first_thread( process
);
748 assert( !((unsigned int)addr
% sizeof(int)) ); /* address must be aligned */
750 if (!thread
) /* process is dead */
752 set_error( STATUS_ACCESS_DENIED
);
755 if (suspend_for_ptrace( thread
))
759 if (read_thread_int( thread
, addr
++, dest
++ ) == -1) break;
762 resume_after_ptrace( thread
);
767 /* make sure we can write to the whole address range */
768 /* len is the total size (in ints) */
769 static int check_process_write_access( struct thread
*thread
, int *addr
, size_t len
)
771 int page
= get_page_size() / sizeof(int);
775 if (write_thread_int( thread
, addr
, 0, 0 ) == -1) return 0;
776 if (len
<= page
) break;
780 return (write_thread_int( thread
, addr
+ len
- 1, 0, 0 ) != -1);
783 /* write data to a process memory space */
784 /* len is the total size (in ints), max is the size we can actually read from the input buffer */
785 /* we check the total size for write permissions */
786 static int write_process_memory( struct process
*process
, int *addr
, size_t len
,
787 unsigned int first_mask
, unsigned int last_mask
, const int *src
)
789 struct thread
*thread
= get_process_first_thread( process
);
792 assert( !((unsigned int)addr
% sizeof(int) )); /* address must be aligned */
794 if (!thread
) /* process is dead */
796 set_error( STATUS_ACCESS_DENIED
);
799 if (suspend_for_ptrace( thread
))
801 if (!check_process_write_access( thread
, addr
, len
))
803 set_error( STATUS_ACCESS_DENIED
);
806 /* first word is special */
809 if (write_thread_int( thread
, addr
++, *src
++, first_mask
) == -1) goto done
;
812 else last_mask
&= first_mask
;
816 if (write_thread_int( thread
, addr
++, *src
++, ~0 ) == -1) goto done
;
820 /* last word is special too */
821 if (write_thread_int( thread
, addr
, *src
, last_mask
) == -1) goto done
;
825 resume_after_ptrace( thread
);
830 /* set the debugged flag in the process PEB */
831 int set_process_debug_flag( struct process
*process
, int flag
)
833 int mask
= 0, data
= 0;
835 /* BeingDebugged flag is the byte at offset 2 in the PEB */
836 memset( (char *)&mask
+ 2, 0xff, 1 );
837 memset( (char *)&data
+ 2, flag
, 1 );
838 return write_process_memory( process
, process
->peb
, 1, mask
, mask
, &data
);
841 /* take a snapshot of currently running processes */
842 struct process_snapshot
*process_snap( int *count
)
844 struct process_snapshot
*snapshot
, *ptr
;
845 struct process
*process
;
846 if (!running_processes
) return NULL
;
847 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * running_processes
)))
850 LIST_FOR_EACH_ENTRY( process
, &process_list
, struct process
, entry
)
852 if (!process
->running_threads
) continue;
853 ptr
->process
= process
;
854 ptr
->threads
= process
->running_threads
;
855 ptr
->count
= process
->obj
.refcount
;
856 ptr
->priority
= process
->priority
;
857 ptr
->handles
= get_handle_table_count(process
);
858 grab_object( process
);
861 *count
= running_processes
;
865 /* take a snapshot of the modules of a process */
866 struct module_snapshot
*module_snap( struct process
*process
, int *count
)
868 struct module_snapshot
*snapshot
, *ptr
;
869 struct process_dll
*dll
;
872 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
) total
++;
873 if (!(snapshot
= mem_alloc( sizeof(*snapshot
) * total
))) return NULL
;
875 /* first entry is main exe */
876 snapshot
->base
= process
->exe
.base
;
877 snapshot
->size
= process
->exe
.size
;
878 snapshot
->namelen
= process
->exe
.namelen
;
879 snapshot
->filename
= memdup( process
->exe
.filename
, process
->exe
.namelen
);
882 LIST_FOR_EACH_ENTRY( dll
, &process
->dlls
, struct process_dll
, entry
)
884 ptr
->base
= dll
->base
;
885 ptr
->size
= dll
->size
;
886 ptr
->namelen
= dll
->namelen
;
887 ptr
->filename
= memdup( dll
->filename
, dll
->namelen
);
895 /* create a new process */
896 DECL_HANDLER(new_process
)
898 struct startup_info
*info
;
900 /* build the startup info for a new process */
901 if (!(info
= alloc_object( &startup_info_ops
))) return;
902 list_add_head( &startup_info_list
, &info
->entry
);
903 info
->inherit_all
= req
->inherit_all
;
904 info
->create_flags
= req
->create_flags
;
905 info
->unix_pid
= req
->unix_pid
;
906 info
->hstdin
= req
->hstdin
;
907 info
->hstdout
= req
->hstdout
;
908 info
->hstderr
= req
->hstderr
;
909 info
->exe_file
= NULL
;
910 info
->owner
= (struct thread
*)grab_object( current
);
911 info
->process
= NULL
;
913 info
->data_size
= get_req_data_size();
917 !(info
->exe_file
= get_file_obj( current
->process
, req
->exe_file
, GENERIC_READ
)))
920 if (!(info
->data
= memdup( get_req_data(), info
->data_size
))) goto done
;
921 reply
->info
= alloc_handle( current
->process
, info
, SYNCHRONIZE
, FALSE
);
924 release_object( info
);
927 /* Retrieve information about a newly started process */
928 DECL_HANDLER(get_new_process_info
)
930 struct startup_info
*info
;
932 if ((info
= (struct startup_info
*)get_handle_obj( current
->process
, req
->info
,
933 0, &startup_info_ops
)))
935 reply
->pid
= get_process_id( info
->process
);
936 reply
->tid
= get_thread_id( info
->thread
);
937 reply
->phandle
= alloc_handle( current
->process
, info
->process
,
938 PROCESS_ALL_ACCESS
, req
->pinherit
);
939 reply
->thandle
= alloc_handle( current
->process
, info
->thread
,
940 THREAD_ALL_ACCESS
, req
->tinherit
);
941 reply
->success
= is_process_init_done( info
->process
);
942 release_object( info
);
954 /* Retrieve the new process startup info */
955 DECL_HANDLER(get_startup_info
)
957 struct startup_info
*info
;
959 if ((info
= current
->process
->startup_info
))
961 size_t size
= info
->data_size
;
962 if (size
> get_reply_max_size()) size
= get_reply_max_size();
964 /* we return the data directly without making a copy so this can only be called once */
965 set_reply_data_ptr( info
->data
, size
);
972 /* initialize a new process */
973 DECL_HANDLER(init_process
)
975 if (current
->unix_pid
== -1)
977 fatal_protocol_error( current
, "init_process: init_thread not called yet\n" );
980 if (current
->process
->startup_info
)
982 fatal_protocol_error( current
, "init_process: called twice\n" );
985 if (!req
->peb
|| (unsigned int)req
->peb
% sizeof(int))
987 fatal_protocol_error( current
, "init_process: bad peb address\n" );
990 if (!req
->ldt_copy
|| (unsigned int)req
->ldt_copy
% sizeof(int))
992 fatal_protocol_error( current
, "init_process: bad ldt_copy address\n" );
995 reply
->info_size
= 0;
996 current
->process
->peb
= req
->peb
;
997 current
->process
->ldt_copy
= req
->ldt_copy
;
998 current
->process
->startup_info
= init_process( reply
);
1001 /* signal the end of the process initialization */
1002 DECL_HANDLER(init_process_done
)
1004 struct file
*file
= NULL
;
1005 struct process
*process
= current
->process
;
1007 if (is_process_init_done(process
))
1009 fatal_protocol_error( current
, "init_process_done: called twice\n" );
1014 fatal_protocol_error( current
, "init_process_done: module base address cannot be 0\n" );
1017 process
->exe
.base
= req
->module
;
1018 process
->exe
.size
= req
->module_size
;
1019 process
->exe
.name
= req
->name
;
1021 if (req
->exe_file
) file
= get_file_obj( process
, req
->exe_file
, GENERIC_READ
);
1022 if (process
->exe
.file
) release_object( process
->exe
.file
);
1023 process
->exe
.file
= file
;
1025 if ((process
->exe
.namelen
= get_req_data_size()))
1026 process
->exe
.filename
= memdup( get_req_data(), process
->exe
.namelen
);
1028 generate_startup_debug_events( process
, req
->entry
);
1029 set_process_startup_state( process
, STARTUP_DONE
);
1031 if (req
->gui
) process
->idle_event
= create_event( NULL
, 0, 1, 0 );
1032 if (current
->suspend
+ process
->suspend
> 0) stop_thread( current
);
1033 if (process
->debugger
) set_process_debug_flag( process
, 1 );
1036 /* open a handle to a process */
1037 DECL_HANDLER(open_process
)
1039 struct process
*process
= get_process_from_id( req
->pid
);
1043 reply
->handle
= alloc_handle( current
->process
, process
, req
->access
, req
->inherit
);
1044 release_object( process
);
1048 /* terminate a process */
1049 DECL_HANDLER(terminate_process
)
1051 struct process
*process
;
1053 if ((process
= get_process_from_handle( req
->handle
, PROCESS_TERMINATE
)))
1055 reply
->self
= (current
->process
== process
);
1056 kill_process( process
, current
, req
->exit_code
);
1057 release_object( process
);
1061 /* fetch information about a process */
1062 DECL_HANDLER(get_process_info
)
1064 struct process
*process
;
1066 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1068 reply
->pid
= get_process_id( process
);
1069 reply
->ppid
= process
->parent
? get_process_id( process
->parent
) : 0;
1070 reply
->exit_code
= process
->exit_code
;
1071 reply
->priority
= process
->priority
;
1072 reply
->process_affinity
= process
->affinity
;
1073 reply
->system_affinity
= 1;
1074 reply
->peb
= process
->peb
;
1075 release_object( process
);
1079 /* set information about a process */
1080 DECL_HANDLER(set_process_info
)
1082 struct process
*process
;
1084 if ((process
= get_process_from_handle( req
->handle
, PROCESS_SET_INFORMATION
)))
1086 if (req
->mask
& SET_PROCESS_INFO_PRIORITY
) process
->priority
= req
->priority
;
1087 if (req
->mask
& SET_PROCESS_INFO_AFFINITY
)
1089 if (req
->affinity
!= 1) set_error( STATUS_INVALID_PARAMETER
);
1090 else process
->affinity
= req
->affinity
;
1092 release_object( process
);
1096 /* read data from a process address space */
1097 DECL_HANDLER(read_process_memory
)
1099 struct process
*process
;
1100 size_t len
= get_reply_max_size();
1102 if (!(process
= get_process_from_handle( req
->handle
, PROCESS_VM_READ
))) return;
1106 unsigned int start_offset
= (unsigned int)req
->addr
% sizeof(int);
1107 unsigned int nb_ints
= (len
+ start_offset
+ sizeof(int) - 1) / sizeof(int);
1108 const int *start
= (int *)((char *)req
->addr
- start_offset
);
1109 int *buffer
= mem_alloc( nb_ints
* sizeof(int) );
1112 if (read_process_memory( process
, start
, nb_ints
, buffer
))
1114 /* move start of requested data to start of buffer */
1115 if (start_offset
) memmove( buffer
, (char *)buffer
+ start_offset
, len
);
1116 set_reply_data_ptr( buffer
, len
);
1121 release_object( process
);
1124 /* write data to a process address space */
1125 DECL_HANDLER(write_process_memory
)
1127 struct process
*process
;
1129 if ((process
= get_process_from_handle( req
->handle
, PROCESS_VM_WRITE
)))
1131 size_t len
= get_req_data_size();
1132 if ((len
% sizeof(int)) || ((unsigned int)req
->addr
% sizeof(int)))
1133 set_error( STATUS_INVALID_PARAMETER
);
1136 if (len
) write_process_memory( process
, req
->addr
, len
/ sizeof(int),
1137 req
->first_mask
, req
->last_mask
, get_req_data() );
1139 release_object( process
);
1143 /* notify the server that a dll has been loaded */
1144 DECL_HANDLER(load_dll
)
1146 struct process_dll
*dll
;
1147 struct file
*file
= NULL
;
1149 if (req
->handle
&& !(file
= get_file_obj( current
->process
, req
->handle
, GENERIC_READ
)))
1152 if ((dll
= process_load_dll( current
->process
, file
, req
->base
,
1153 get_req_data(), get_req_data_size() )))
1155 dll
->size
= req
->size
;
1156 dll
->dbg_offset
= req
->dbg_offset
;
1157 dll
->dbg_size
= req
->dbg_size
;
1158 dll
->name
= req
->name
;
1159 /* only generate event if initialization is done */
1160 if (is_process_init_done( current
->process
))
1161 generate_debug_event( current
, LOAD_DLL_DEBUG_EVENT
, dll
);
1163 if (file
) release_object( file
);
1166 /* notify the server that a dll is being unloaded */
1167 DECL_HANDLER(unload_dll
)
1169 process_unload_dll( current
->process
, req
->base
);
1172 /* retrieve information about a module in a process */
1173 DECL_HANDLER(get_dll_info
)
1175 struct process
*process
;
1177 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1179 struct process_dll
*dll
= find_process_dll( process
, req
->base_address
);
1183 reply
->size
= dll
->size
;
1184 reply
->entry_point
= 0; /* FIXME */
1187 size_t len
= min( dll
->namelen
, get_reply_max_size() );
1188 set_reply_data( dll
->filename
, len
);
1192 set_error( STATUS_DLL_NOT_FOUND
);
1194 release_object( process
);
1198 /* wait for a process to start waiting on input */
1199 /* FIXME: only returns event for now, wait is done in the client */
1200 DECL_HANDLER(wait_input_idle
)
1202 struct process
*process
;
1205 if ((process
= get_process_from_handle( req
->handle
, PROCESS_QUERY_INFORMATION
)))
1207 if (process
->idle_event
&& process
!= current
->process
&& process
->queue
!= current
->queue
)
1208 reply
->event
= alloc_handle( current
->process
, process
->idle_event
,
1209 EVENT_ALL_ACCESS
, 0 );
1210 release_object( process
);