twain_32/tests: Add a trailing '\n' to ok() calls.
[wine/gsoc-2012-control.git] / server / process.c
blob8a4fb15a711ea5c0eac29d8800ddac3ebe2085dd
1 /*
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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
21 #include "config.h"
22 #include "wine/port.h"
24 #include <assert.h>
25 #include <limits.h>
26 #include <signal.h>
27 #include <string.h>
28 #include <stdarg.h>
29 #include <stdio.h>
30 #include <stdlib.h>
31 #include <sys/time.h>
32 #ifdef HAVE_SYS_SOCKET_H
33 # include <sys/socket.h>
34 #endif
35 #include <unistd.h>
36 #ifdef HAVE_POLL_H
37 #include <poll.h>
38 #endif
40 #include "ntstatus.h"
41 #define WIN32_NO_STATUS
42 #include "winternl.h"
44 #include "file.h"
45 #include "handle.h"
46 #include "process.h"
47 #include "thread.h"
48 #include "request.h"
49 #include "user.h"
50 #include "security.h"
52 /* process structure */
54 static struct list process_list = LIST_INIT(process_list);
55 static int running_processes, user_processes;
56 static struct event *shutdown_event; /* signaled when shutdown starts */
57 static struct timeout_user *shutdown_timeout; /* timeout for server shutdown */
58 static int shutdown_stage; /* current stage in the shutdown process */
60 /* process operations */
62 static void process_dump( struct object *obj, int verbose );
63 static int process_signaled( struct object *obj, struct thread *thread );
64 static unsigned int process_map_access( struct object *obj, unsigned int access );
65 static void process_poll_event( struct fd *fd, int event );
66 static void process_destroy( struct object *obj );
68 static const struct object_ops process_ops =
70 sizeof(struct process), /* size */
71 process_dump, /* dump */
72 no_get_type, /* get_type */
73 add_queue, /* add_queue */
74 remove_queue, /* remove_queue */
75 process_signaled, /* signaled */
76 no_satisfied, /* satisfied */
77 no_signal, /* signal */
78 no_get_fd, /* get_fd */
79 process_map_access, /* map_access */
80 default_get_sd, /* get_sd */
81 default_set_sd, /* set_sd */
82 no_lookup_name, /* lookup_name */
83 no_open_file, /* open_file */
84 no_close_handle, /* close_handle */
85 process_destroy /* destroy */
88 static const struct fd_ops process_fd_ops =
90 NULL, /* get_poll_events */
91 process_poll_event, /* poll_event */
92 NULL, /* flush */
93 NULL, /* get_fd_type */
94 NULL, /* ioctl */
95 NULL, /* queue_async */
96 NULL, /* reselect_async */
97 NULL /* cancel async */
100 /* process startup info */
102 struct startup_info
104 struct object obj; /* object header */
105 obj_handle_t hstdin; /* handle for stdin */
106 obj_handle_t hstdout; /* handle for stdout */
107 obj_handle_t hstderr; /* handle for stderr */
108 struct file *exe_file; /* file handle for main exe */
109 struct process *process; /* created process */
110 data_size_t data_size; /* size of startup data */
111 void *data; /* data for startup info */
114 static void startup_info_dump( struct object *obj, int verbose );
115 static int startup_info_signaled( struct object *obj, struct thread *thread );
116 static void startup_info_destroy( struct object *obj );
118 static const struct object_ops startup_info_ops =
120 sizeof(struct startup_info), /* size */
121 startup_info_dump, /* dump */
122 no_get_type, /* get_type */
123 add_queue, /* add_queue */
124 remove_queue, /* remove_queue */
125 startup_info_signaled, /* signaled */
126 no_satisfied, /* satisfied */
127 no_signal, /* signal */
128 no_get_fd, /* get_fd */
129 no_map_access, /* map_access */
130 default_get_sd, /* get_sd */
131 default_set_sd, /* set_sd */
132 no_lookup_name, /* lookup_name */
133 no_open_file, /* open_file */
134 no_close_handle, /* close_handle */
135 startup_info_destroy /* destroy */
139 struct ptid_entry
141 void *ptr; /* entry ptr */
142 unsigned int next; /* next free entry */
145 static struct ptid_entry *ptid_entries; /* array of ptid entries */
146 static unsigned int used_ptid_entries; /* number of entries in use */
147 static unsigned int alloc_ptid_entries; /* number of allocated entries */
148 static unsigned int next_free_ptid; /* next free entry */
149 static unsigned int last_free_ptid; /* last free entry */
151 static void kill_all_processes(void);
153 #define PTID_OFFSET 8 /* offset for first ptid value */
155 /* allocate a new process or thread id */
156 unsigned int alloc_ptid( void *ptr )
158 struct ptid_entry *entry;
159 unsigned int id;
161 if (used_ptid_entries < alloc_ptid_entries)
163 id = used_ptid_entries + PTID_OFFSET;
164 entry = &ptid_entries[used_ptid_entries++];
166 else if (next_free_ptid)
168 id = next_free_ptid;
169 entry = &ptid_entries[id - PTID_OFFSET];
170 if (!(next_free_ptid = entry->next)) last_free_ptid = 0;
172 else /* need to grow the array */
174 unsigned int count = alloc_ptid_entries + (alloc_ptid_entries / 2);
175 if (!count) count = 64;
176 if (!(entry = realloc( ptid_entries, count * sizeof(*entry) )))
178 set_error( STATUS_NO_MEMORY );
179 return 0;
181 ptid_entries = entry;
182 alloc_ptid_entries = count;
183 id = used_ptid_entries + PTID_OFFSET;
184 entry = &ptid_entries[used_ptid_entries++];
187 entry->ptr = ptr;
188 return id;
191 /* free a process or thread id */
192 void free_ptid( unsigned int id )
194 struct ptid_entry *entry = &ptid_entries[id - PTID_OFFSET];
196 entry->ptr = NULL;
197 entry->next = 0;
199 /* append to end of free list so that we don't reuse it too early */
200 if (last_free_ptid) ptid_entries[last_free_ptid - PTID_OFFSET].next = id;
201 else next_free_ptid = id;
203 last_free_ptid = id;
206 /* retrieve the pointer corresponding to a process or thread id */
207 void *get_ptid_entry( unsigned int id )
209 if (id < PTID_OFFSET) return NULL;
210 if (id - PTID_OFFSET >= used_ptid_entries) return NULL;
211 return ptid_entries[id - PTID_OFFSET].ptr;
214 /* return the main thread of the process */
215 struct thread *get_process_first_thread( struct process *process )
217 struct list *ptr = list_head( &process->thread_list );
218 if (!ptr) return NULL;
219 return LIST_ENTRY( ptr, struct thread, proc_entry );
222 /* set the state of the process startup info */
223 static void set_process_startup_state( struct process *process, enum startup_state state )
225 if (process->startup_state == STARTUP_IN_PROGRESS) process->startup_state = state;
226 if (process->startup_info)
228 wake_up( &process->startup_info->obj, 0 );
229 release_object( process->startup_info );
230 process->startup_info = NULL;
234 /* callback for server shutdown */
235 static void server_shutdown_timeout( void *arg )
237 shutdown_timeout = NULL;
238 if (!running_processes)
240 close_master_socket( 0 );
241 return;
243 switch(++shutdown_stage)
245 case 1: /* signal system processes to exit */
246 if (debug_level) fprintf( stderr, "wineserver: shutting down\n" );
247 if (shutdown_event) set_event( shutdown_event );
248 shutdown_timeout = add_timeout_user( 2 * -TICKS_PER_SEC, server_shutdown_timeout, NULL );
249 close_master_socket( 4 * -TICKS_PER_SEC );
250 break;
251 case 2: /* now forcibly kill all processes (but still wait for SIGKILL timeouts) */
252 kill_all_processes();
253 break;
257 /* forced shutdown, used for wineserver -k */
258 void shutdown_master_socket(void)
260 kill_all_processes();
261 shutdown_stage = 2;
262 if (shutdown_timeout)
264 remove_timeout_user( shutdown_timeout );
265 shutdown_timeout = NULL;
267 close_master_socket( 2 * -TICKS_PER_SEC ); /* for SIGKILL timeouts */
270 /* final cleanup once we are sure a process is really dead */
271 static void process_died( struct process *process )
273 if (debug_level) fprintf( stderr, "%04x: *process killed*\n", process->id );
274 if (!process->is_system)
276 if (!--user_processes && !shutdown_stage && master_socket_timeout != TIMEOUT_INFINITE)
277 shutdown_timeout = add_timeout_user( master_socket_timeout, server_shutdown_timeout, NULL );
279 release_object( process );
280 if (!--running_processes && shutdown_stage) close_master_socket( 0 );
283 /* callback for process sigkill timeout */
284 static void process_sigkill( void *private )
286 struct process *process = private;
288 process->sigkill_timeout = NULL;
289 kill( process->unix_pid, SIGKILL );
290 process_died( process );
293 /* start the sigkill timer for a process upon exit */
294 static void start_sigkill_timer( struct process *process )
296 grab_object( process );
297 if (process->unix_pid != -1 && process->msg_fd)
298 process->sigkill_timeout = add_timeout_user( -TICKS_PER_SEC, process_sigkill, process );
299 else
300 process_died( process );
303 /* create a new process and its main thread */
304 /* if the function fails the fd is closed */
305 struct thread *create_process( int fd, struct thread *parent_thread, int inherit_all )
307 struct process *process;
308 struct thread *thread = NULL;
309 int request_pipe[2];
311 if (!(process = alloc_object( &process_ops )))
313 close( fd );
314 goto error;
316 process->parent = NULL;
317 process->debugger = NULL;
318 process->handles = NULL;
319 process->msg_fd = NULL;
320 process->sigkill_timeout = NULL;
321 process->unix_pid = -1;
322 process->exit_code = STILL_ACTIVE;
323 process->running_threads = 0;
324 process->priority = PROCESS_PRIOCLASS_NORMAL;
325 process->affinity = ~0;
326 process->suspend = 0;
327 process->is_system = 0;
328 process->create_flags = 0;
329 process->console = NULL;
330 process->startup_state = STARTUP_IN_PROGRESS;
331 process->startup_info = NULL;
332 process->idle_event = NULL;
333 process->queue = NULL;
334 process->peb = 0;
335 process->ldt_copy = 0;
336 process->winstation = 0;
337 process->desktop = 0;
338 process->token = NULL;
339 process->trace_data = 0;
340 list_init( &process->thread_list );
341 list_init( &process->locks );
342 list_init( &process->classes );
343 list_init( &process->dlls );
345 process->start_time = current_time;
346 process->end_time = 0;
347 list_add_tail( &process_list, &process->entry );
349 if (!(process->id = process->group_id = alloc_ptid( process )))
351 close( fd );
352 goto error;
354 if (!(process->msg_fd = create_anonymous_fd( &process_fd_ops, fd, &process->obj, 0 ))) goto error;
356 /* create the handle table */
357 if (!parent_thread)
359 process->handles = alloc_handle_table( process, 0 );
360 process->token = token_create_admin();
362 else
364 struct process *parent = parent_thread->process;
365 process->parent = (struct process *)grab_object( parent );
366 process->handles = inherit_all ? copy_handle_table( process, parent )
367 : alloc_handle_table( process, 0 );
368 /* Note: for security reasons, starting a new process does not attempt
369 * to use the current impersonation token for the new process */
370 process->token = token_duplicate( parent->token, TRUE, 0 );
372 if (!process->handles || !process->token) goto error;
374 /* create the main thread */
375 if (pipe( request_pipe ) == -1)
377 file_set_error();
378 goto error;
380 if (send_client_fd( process, request_pipe[1], SERVER_PROTOCOL_VERSION ) == -1)
382 close( request_pipe[0] );
383 close( request_pipe[1] );
384 goto error;
386 close( request_pipe[1] );
387 if (!(thread = create_thread( request_pipe[0], process ))) goto error;
389 set_fd_events( process->msg_fd, POLLIN ); /* start listening to events */
390 release_object( process );
391 return thread;
393 error:
394 if (process) release_object( process );
395 /* if we failed to start our first process, close everything down */
396 if (!running_processes) close_master_socket( 0 );
397 return NULL;
400 /* initialize the current process and fill in the request */
401 data_size_t init_process( struct thread *thread )
403 struct process *process = thread->process;
404 struct startup_info *info = process->startup_info;
406 init_process_tracing( process );
407 if (!info) return 0;
408 return info->data_size;
411 /* destroy a process when its refcount is 0 */
412 static void process_destroy( struct object *obj )
414 struct process *process = (struct process *)obj;
415 assert( obj->ops == &process_ops );
417 /* we can't have a thread remaining */
418 assert( list_empty( &process->thread_list ));
420 assert( !process->sigkill_timeout ); /* timeout should hold a reference to the process */
422 set_process_startup_state( process, STARTUP_ABORTED );
423 if (process->console) release_object( process->console );
424 if (process->parent) release_object( process->parent );
425 if (process->msg_fd) release_object( process->msg_fd );
426 list_remove( &process->entry );
427 if (process->idle_event) release_object( process->idle_event );
428 if (process->queue) release_object( process->queue );
429 if (process->id) free_ptid( process->id );
430 if (process->token) release_object( process->token );
433 /* dump a process on stdout for debugging purposes */
434 static void process_dump( struct object *obj, int verbose )
436 struct process *process = (struct process *)obj;
437 assert( obj->ops == &process_ops );
439 fprintf( stderr, "Process id=%04x handles=%p\n", process->id, process->handles );
442 static int process_signaled( struct object *obj, struct thread *thread )
444 struct process *process = (struct process *)obj;
445 return !process->running_threads;
448 static unsigned int process_map_access( struct object *obj, unsigned int access )
450 if (access & GENERIC_READ) access |= STANDARD_RIGHTS_READ | SYNCHRONIZE;
451 if (access & GENERIC_WRITE) access |= STANDARD_RIGHTS_WRITE | SYNCHRONIZE;
452 if (access & GENERIC_EXECUTE) access |= STANDARD_RIGHTS_EXECUTE;
453 if (access & GENERIC_ALL) access |= PROCESS_ALL_ACCESS;
454 return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL);
457 static void process_poll_event( struct fd *fd, int event )
459 struct process *process = get_fd_user( fd );
460 assert( process->obj.ops == &process_ops );
462 if (event & (POLLERR | POLLHUP)) kill_process( process, 0 );
463 else if (event & POLLIN) receive_fd( process );
466 static void startup_info_destroy( struct object *obj )
468 struct startup_info *info = (struct startup_info *)obj;
469 assert( obj->ops == &startup_info_ops );
470 free( info->data );
471 if (info->exe_file) release_object( info->exe_file );
472 if (info->process) release_object( info->process );
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 in=%04x out=%04x err=%04x\n",
481 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 && info->process->startup_state != STARTUP_IN_PROGRESS;
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 );
497 return NULL;
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 /* find a dll from its base address */
508 static inline struct process_dll *find_process_dll( struct process *process, mod_handle_t base )
510 struct process_dll *dll;
512 LIST_FOR_EACH_ENTRY( dll, &process->dlls, struct process_dll, entry )
514 if (dll->base == base) return dll;
516 return NULL;
519 /* add a dll to a process list */
520 static struct process_dll *process_load_dll( struct process *process, struct file *file,
521 mod_handle_t base, const WCHAR *filename,
522 data_size_t name_len )
524 struct process_dll *dll;
526 /* make sure we don't already have one with the same base address */
527 if (find_process_dll( process, base ))
529 set_error( STATUS_INVALID_PARAMETER );
530 return NULL;
533 if ((dll = mem_alloc( sizeof(*dll) )))
535 dll->file = NULL;
536 dll->base = base;
537 dll->filename = NULL;
538 dll->namelen = name_len;
539 if (name_len && !(dll->filename = memdup( filename, name_len )))
541 free( dll );
542 return NULL;
544 if (file) dll->file = grab_file_unless_removable( file );
545 list_add_tail( &process->dlls, &dll->entry );
547 return dll;
550 /* remove a dll from a process list */
551 static void process_unload_dll( struct process *process, mod_handle_t base )
553 struct process_dll *dll = find_process_dll( process, base );
555 if (dll && (&dll->entry != list_head( &process->dlls ))) /* main exe can't be unloaded */
557 if (dll->file) release_object( dll->file );
558 free( dll->filename );
559 list_remove( &dll->entry );
560 free( dll );
561 generate_debug_event( current, UNLOAD_DLL_DEBUG_EVENT, &base );
563 else set_error( STATUS_INVALID_PARAMETER );
566 /* terminate a process with the given exit code */
567 static void terminate_process( struct process *process, struct thread *skip, int exit_code )
569 struct list *ptr;
571 if (skip && skip->process == process) /* move it to the end of the list */
573 assert( skip->state != TERMINATED );
574 list_remove( &skip->proc_entry );
575 list_add_tail( &process->thread_list, &skip->proc_entry );
578 grab_object( process ); /* make sure it doesn't get freed when threads die */
579 while ((ptr = list_head( &process->thread_list )))
581 struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry );
583 if (exit_code) thread->exit_code = exit_code;
584 if (thread == skip) break;
585 kill_thread( thread, 1 );
587 release_object( process );
590 /* kill all processes */
591 static void kill_all_processes(void)
593 for (;;)
595 struct process *process;
597 LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry )
599 if (process->running_threads) break;
601 if (&process->entry == &process_list) break; /* no process found */
602 terminate_process( process, NULL, 1 );
606 /* kill all processes being attached to a console renderer */
607 void kill_console_processes( struct thread *renderer, int exit_code )
609 for (;;) /* restart from the beginning of the list every time */
611 struct process *process;
613 /* find the first process being attached to 'renderer' and still running */
614 LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry )
616 if (process == renderer->process) continue;
617 if (!process->running_threads) continue;
618 if (process->console && console_get_renderer( process->console ) == renderer) break;
620 if (&process->entry == &process_list) break; /* no process found */
621 terminate_process( process, NULL, exit_code );
625 /* a process has been killed (i.e. its last thread died) */
626 static void process_killed( struct process *process )
628 struct handle_table *handles;
629 struct list *ptr;
631 assert( list_empty( &process->thread_list ));
632 process->end_time = current_time;
633 if (!process->is_system) close_process_desktop( process );
634 handles = process->handles;
635 process->handles = NULL;
636 if (handles) release_object( handles );
638 /* close the console attached to this process, if any */
639 free_console( process );
641 while ((ptr = list_head( &process->dlls )))
643 struct process_dll *dll = LIST_ENTRY( ptr, struct process_dll, entry );
644 if (dll->file) release_object( dll->file );
645 free( dll->filename );
646 list_remove( &dll->entry );
647 free( dll );
649 destroy_process_classes( process );
650 remove_process_locks( process );
651 set_process_startup_state( process, STARTUP_ABORTED );
652 finish_process_tracing( process );
653 start_sigkill_timer( process );
654 wake_up( &process->obj, 0 );
657 /* add a thread to a process running threads list */
658 void add_process_thread( struct process *process, struct thread *thread )
660 list_add_tail( &process->thread_list, &thread->proc_entry );
661 if (!process->running_threads++)
663 running_processes++;
664 if (!process->is_system)
666 if (!user_processes++ && shutdown_timeout)
668 remove_timeout_user( shutdown_timeout );
669 shutdown_timeout = NULL;
673 grab_object( thread );
676 /* remove a thread from a process running threads list */
677 void remove_process_thread( struct process *process, struct thread *thread )
679 assert( process->running_threads > 0 );
680 assert( !list_empty( &process->thread_list ));
682 list_remove( &thread->proc_entry );
684 if (!--process->running_threads)
686 /* we have removed the last running thread, exit the process */
687 process->exit_code = thread->exit_code;
688 generate_debug_event( thread, EXIT_PROCESS_DEBUG_EVENT, process );
689 process_killed( process );
691 else generate_debug_event( thread, EXIT_THREAD_DEBUG_EVENT, thread );
692 release_object( thread );
695 /* suspend all the threads of a process */
696 void suspend_process( struct process *process )
698 if (!process->suspend++)
700 struct list *ptr, *next;
702 LIST_FOR_EACH_SAFE( ptr, next, &process->thread_list )
704 struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry );
705 if (!thread->suspend) stop_thread( thread );
710 /* resume all the threads of a process */
711 void resume_process( struct process *process )
713 assert (process->suspend > 0);
714 if (!--process->suspend)
716 struct list *ptr, *next;
718 LIST_FOR_EACH_SAFE( ptr, next, &process->thread_list )
720 struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry );
721 if (!thread->suspend) wake_thread( thread );
726 /* kill a process on the spot */
727 void kill_process( struct process *process, int violent_death )
729 if (!violent_death && process->msg_fd) /* normal termination on pipe close */
731 release_object( process->msg_fd );
732 process->msg_fd = NULL;
735 if (process->sigkill_timeout) /* already waiting for it to die */
737 remove_timeout_user( process->sigkill_timeout );
738 process->sigkill_timeout = NULL;
739 process_died( process );
740 return;
743 if (violent_death) terminate_process( process, NULL, 1 );
744 else
746 struct list *ptr;
748 grab_object( process ); /* make sure it doesn't get freed when threads die */
749 while ((ptr = list_head( &process->thread_list )))
751 struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry );
752 kill_thread( thread, 0 );
754 release_object( process );
758 /* kill all processes being debugged by a given thread */
759 void kill_debugged_processes( struct thread *debugger, int exit_code )
761 for (;;) /* restart from the beginning of the list every time */
763 struct process *process;
765 /* find the first process being debugged by 'debugger' and still running */
766 LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry )
768 if (!process->running_threads) continue;
769 if (process->debugger == debugger) break;
771 if (&process->entry == &process_list) break; /* no process found */
772 process->debugger = NULL;
773 terminate_process( process, NULL, exit_code );
778 /* trigger a breakpoint event in a given process */
779 void break_process( struct process *process )
781 struct thread *thread;
783 suspend_process( process );
785 LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry )
787 if (thread->context) /* inside an exception event already */
789 break_thread( thread );
790 goto done;
793 if ((thread = get_process_first_thread( process ))) thread->debug_break = 1;
794 else set_error( STATUS_ACCESS_DENIED );
795 done:
796 resume_process( process );
800 /* detach a debugger from all its debuggees */
801 void detach_debugged_processes( struct thread *debugger )
803 struct process *process;
805 LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry )
807 if (process->debugger == debugger && process->running_threads)
809 debugger_detach( process, debugger );
815 void enum_processes( int (*cb)(struct process*, void*), void *user )
817 struct list *ptr, *next;
819 LIST_FOR_EACH_SAFE( ptr, next, &process_list )
821 struct process *process = LIST_ENTRY( ptr, struct process, entry );
822 if ((cb)(process, user)) break;
826 /* set the debugged flag in the process PEB */
827 int set_process_debug_flag( struct process *process, int flag )
829 char data = (flag != 0);
831 /* BeingDebugged flag is the byte at offset 2 in the PEB */
832 return write_process_memory( process, process->peb + 2, 1, &data );
835 /* take a snapshot of currently running processes */
836 struct process_snapshot *process_snap( int *count )
838 struct process_snapshot *snapshot, *ptr;
839 struct process *process;
841 if (!running_processes) return NULL;
842 if (!(snapshot = mem_alloc( sizeof(*snapshot) * running_processes )))
843 return NULL;
844 ptr = snapshot;
845 LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry )
847 if (!process->running_threads) continue;
848 ptr->process = process;
849 ptr->threads = process->running_threads;
850 ptr->count = process->obj.refcount;
851 ptr->priority = process->priority;
852 ptr->handles = get_handle_table_count(process);
853 grab_object( process );
854 ptr++;
857 if (!(*count = ptr - snapshot))
859 free( snapshot );
860 snapshot = NULL;
862 return snapshot;
865 /* create a new process */
866 DECL_HANDLER(new_process)
868 struct startup_info *info;
869 struct thread *thread;
870 struct process *process;
871 struct process *parent = current->process;
872 int socket_fd = thread_get_inflight_fd( current, req->socket_fd );
874 if (socket_fd == -1)
876 set_error( STATUS_INVALID_PARAMETER );
877 return;
879 if (fcntl( socket_fd, F_SETFL, O_NONBLOCK ) == -1)
881 set_error( STATUS_INVALID_HANDLE );
882 close( socket_fd );
883 return;
885 if (shutdown_stage)
887 set_error( STATUS_SHUTDOWN_IN_PROGRESS );
888 close( socket_fd );
889 return;
892 /* build the startup info for a new process */
893 if (!(info = alloc_object( &startup_info_ops ))) return;
894 info->hstdin = req->hstdin;
895 info->hstdout = req->hstdout;
896 info->hstderr = req->hstderr;
897 info->exe_file = NULL;
898 info->process = NULL;
899 info->data_size = get_req_data_size();
900 info->data = NULL;
902 if (req->exe_file &&
903 !(info->exe_file = get_file_obj( current->process, req->exe_file, FILE_READ_DATA )))
904 goto done;
906 if (!(info->data = memdup( get_req_data(), info->data_size ))) goto done;
908 if (!(thread = create_process( socket_fd, current, req->inherit_all ))) goto done;
909 process = thread->process;
910 process->create_flags = req->create_flags;
911 process->startup_info = (struct startup_info *)grab_object( info );
913 /* connect to the window station */
914 connect_process_winstation( process, current );
916 /* thread will be actually suspended in init_done */
917 if (req->create_flags & CREATE_SUSPENDED) thread->suspend++;
919 /* set the process console */
920 if (!(req->create_flags & (DETACHED_PROCESS | CREATE_NEW_CONSOLE)))
922 /* FIXME: some better error checking should be done...
923 * like if hConOut and hConIn are console handles, then they should be on the same
924 * physical console
926 inherit_console( current, process, req->inherit_all ? req->hstdin : 0 );
929 if (!req->inherit_all && !(req->create_flags & CREATE_NEW_CONSOLE))
931 info->hstdin = duplicate_handle( parent, req->hstdin, process,
932 0, OBJ_INHERIT, DUPLICATE_SAME_ACCESS );
933 info->hstdout = duplicate_handle( parent, req->hstdout, process,
934 0, OBJ_INHERIT, DUPLICATE_SAME_ACCESS );
935 info->hstderr = duplicate_handle( parent, req->hstderr, process,
936 0, OBJ_INHERIT, DUPLICATE_SAME_ACCESS );
937 /* some handles above may have been invalid; this is not an error */
938 if (get_error() == STATUS_INVALID_HANDLE ||
939 get_error() == STATUS_OBJECT_TYPE_MISMATCH) clear_error();
942 /* attach to the debugger if requested */
943 if (req->create_flags & (DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS))
944 set_process_debugger( process, current );
945 else if (parent->debugger && !(parent->create_flags & DEBUG_ONLY_THIS_PROCESS))
946 set_process_debugger( process, parent->debugger );
948 if (!(req->create_flags & CREATE_NEW_PROCESS_GROUP))
949 process->group_id = parent->group_id;
951 info->process = (struct process *)grab_object( process );
952 reply->info = alloc_handle( current->process, info, SYNCHRONIZE, 0 );
953 reply->pid = get_process_id( process );
954 reply->tid = get_thread_id( thread );
955 reply->phandle = alloc_handle( parent, process, req->process_access, req->process_attr );
956 reply->thandle = alloc_handle( parent, thread, req->thread_access, req->thread_attr );
958 done:
959 release_object( info );
962 /* Retrieve information about a newly started process */
963 DECL_HANDLER(get_new_process_info)
965 struct startup_info *info;
967 if ((info = (struct startup_info *)get_handle_obj( current->process, req->info,
968 0, &startup_info_ops )))
970 reply->success = is_process_init_done( info->process );
971 reply->exit_code = info->process->exit_code;
972 release_object( info );
976 /* Retrieve the new process startup info */
977 DECL_HANDLER(get_startup_info)
979 struct process *process = current->process;
980 struct startup_info *info = process->startup_info;
981 data_size_t size;
983 if (!info) return;
985 if (info->exe_file &&
986 !(reply->exe_file = alloc_handle( process, info->exe_file, GENERIC_READ, 0 ))) return;
988 reply->hstdin = info->hstdin;
989 reply->hstdout = info->hstdout;
990 reply->hstderr = info->hstderr;
992 /* we return the data directly without making a copy so this can only be called once */
993 size = info->data_size;
994 if (size > get_reply_max_size()) size = get_reply_max_size();
995 set_reply_data_ptr( info->data, size );
996 info->data = NULL;
997 info->data_size = 0;
1000 /* signal the end of the process initialization */
1001 DECL_HANDLER(init_process_done)
1003 struct process_dll *dll;
1004 struct process *process = current->process;
1006 if (is_process_init_done(process))
1008 set_error( STATUS_INVALID_PARAMETER );
1009 return;
1011 if (!(dll = find_process_dll( process, req->module )))
1013 set_error( STATUS_DLL_NOT_FOUND );
1014 return;
1017 /* main exe is the first in the dll list */
1018 list_remove( &dll->entry );
1019 list_add_head( &process->dlls, &dll->entry );
1021 process->ldt_copy = req->ldt_copy;
1023 generate_startup_debug_events( process, req->entry );
1024 set_process_startup_state( process, STARTUP_DONE );
1026 if (req->gui) process->idle_event = create_event( NULL, NULL, 0, 1, 0, NULL );
1027 if (current->suspend + process->suspend > 0) stop_thread( current );
1028 if (process->debugger) set_process_debug_flag( process, 1 );
1031 /* open a handle to a process */
1032 DECL_HANDLER(open_process)
1034 struct process *process = get_process_from_id( req->pid );
1035 reply->handle = 0;
1036 if (process)
1038 reply->handle = alloc_handle( current->process, process, req->access, req->attributes );
1039 release_object( process );
1043 /* terminate a process */
1044 DECL_HANDLER(terminate_process)
1046 struct process *process;
1048 if ((process = get_process_from_handle( req->handle, PROCESS_TERMINATE )))
1050 reply->self = (current->process == process);
1051 terminate_process( process, current, req->exit_code );
1052 release_object( process );
1056 /* fetch information about a process */
1057 DECL_HANDLER(get_process_info)
1059 struct process *process;
1061 if ((process = get_process_from_handle( req->handle, PROCESS_QUERY_INFORMATION )))
1063 reply->pid = get_process_id( process );
1064 reply->ppid = process->parent ? get_process_id( process->parent ) : 0;
1065 reply->exit_code = process->exit_code;
1066 reply->priority = process->priority;
1067 reply->affinity = process->affinity;
1068 reply->peb = process->peb;
1069 reply->start_time = process->start_time;
1070 reply->end_time = process->end_time;
1071 release_object( process );
1075 /* set information about a process */
1076 DECL_HANDLER(set_process_info)
1078 struct process *process;
1080 if ((process = get_process_from_handle( req->handle, PROCESS_SET_INFORMATION )))
1082 if (req->mask & SET_PROCESS_INFO_PRIORITY) process->priority = req->priority;
1083 if (req->mask & SET_PROCESS_INFO_AFFINITY) process->affinity = req->affinity;
1084 release_object( process );
1088 /* read data from a process address space */
1089 DECL_HANDLER(read_process_memory)
1091 struct process *process;
1092 data_size_t len = get_reply_max_size();
1094 if (!(process = get_process_from_handle( req->handle, PROCESS_VM_READ ))) return;
1096 if (len)
1098 char *buffer = mem_alloc( len );
1099 if (buffer)
1101 if (read_process_memory( process, req->addr, len, buffer ))
1102 set_reply_data_ptr( buffer, len );
1103 else
1104 free( buffer );
1107 release_object( process );
1110 /* write data to a process address space */
1111 DECL_HANDLER(write_process_memory)
1113 struct process *process;
1115 if ((process = get_process_from_handle( req->handle, PROCESS_VM_WRITE )))
1117 data_size_t len = get_req_data_size();
1118 if (len) write_process_memory( process, req->addr, len, get_req_data() );
1119 else set_error( STATUS_INVALID_PARAMETER );
1120 release_object( process );
1124 /* notify the server that a dll has been loaded */
1125 DECL_HANDLER(load_dll)
1127 struct process_dll *dll;
1128 struct file *file = NULL;
1130 if (req->handle && !(file = get_file_obj( current->process, req->handle, FILE_READ_DATA )))
1131 return;
1133 if ((dll = process_load_dll( current->process, file, req->base,
1134 get_req_data(), get_req_data_size() )))
1136 dll->size = req->size;
1137 dll->dbg_offset = req->dbg_offset;
1138 dll->dbg_size = req->dbg_size;
1139 dll->name = req->name;
1140 /* only generate event if initialization is done */
1141 if (is_process_init_done( current->process ))
1142 generate_debug_event( current, LOAD_DLL_DEBUG_EVENT, dll );
1144 if (file) release_object( file );
1147 /* notify the server that a dll is being unloaded */
1148 DECL_HANDLER(unload_dll)
1150 process_unload_dll( current->process, req->base );
1153 /* retrieve information about a module in a process */
1154 DECL_HANDLER(get_dll_info)
1156 struct process *process;
1158 if ((process = get_process_from_handle( req->handle, PROCESS_QUERY_INFORMATION )))
1160 struct process_dll *dll;
1162 if (req->base_address)
1163 dll = find_process_dll( process, req->base_address );
1164 else /* NULL means main module */
1165 dll = list_head( &process->dlls ) ?
1166 LIST_ENTRY(list_head( &process->dlls ), struct process_dll, entry) : NULL;
1168 if (dll)
1170 reply->size = dll->size;
1171 reply->entry_point = 0; /* FIXME */
1172 reply->filename_len = dll->namelen;
1173 if (dll->filename)
1175 if (dll->namelen <= get_reply_max_size())
1176 set_reply_data( dll->filename, dll->namelen );
1177 else
1178 set_error( STATUS_BUFFER_TOO_SMALL );
1181 else
1182 set_error( STATUS_DLL_NOT_FOUND );
1184 release_object( process );
1188 /* retrieve the process idle event */
1189 DECL_HANDLER(get_process_idle_event)
1191 struct process *process;
1193 reply->event = 0;
1194 if ((process = get_process_from_handle( req->handle, PROCESS_QUERY_INFORMATION )))
1196 if (process->idle_event && process != current->process)
1197 reply->event = alloc_handle( current->process, process->idle_event,
1198 EVENT_ALL_ACCESS, 0 );
1199 release_object( process );
1203 /* make the current process a system process */
1204 DECL_HANDLER(make_process_system)
1206 struct process *process = current->process;
1208 if (!shutdown_event)
1210 if (!(shutdown_event = create_event( NULL, NULL, 0, 1, 0, NULL ))) return;
1211 make_object_static( (struct object *)shutdown_event );
1214 if (!(reply->event = alloc_handle( current->process, shutdown_event, SYNCHRONIZE, 0 )))
1215 return;
1217 if (!process->is_system)
1219 process->is_system = 1;
1220 close_process_desktop( process );
1221 if (!--user_processes && !shutdown_stage && master_socket_timeout != TIMEOUT_INFINITE)
1222 shutdown_timeout = add_timeout_user( master_socket_timeout, server_shutdown_timeout, NULL );