/* * Server-side process management * * Copyright (C) 1998 Alexandre Julliard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include <assert.h> #include <limits.h> #include <signal.h> #include <string.h> #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <sys/time.h> #ifdef HAVE_SYS_SOCKET_H # include <sys/socket.h> #endif #include <unistd.h> #ifdef HAVE_POLL_H #include <poll.h> #endif #include "ntstatus.h" #define WIN32_NO_STATUS #include "winternl.h" #include "file.h" #include "handle.h" #include "process.h" #include "thread.h" #include "request.h" #include "user.h" #include "security.h" /* process structure */ static struct list process_list = LIST_INIT(process_list); static int running_processes, user_processes; static struct event *shutdown_event; /* signaled when shutdown starts */ static struct timeout_user *shutdown_timeout; /* timeout for server shutdown */ static int shutdown_stage; /* current stage in the shutdown process */ /* process operations */ static void process_dump( struct object *obj, int verbose ); static int process_signaled( struct object *obj, struct thread *thread ); static unsigned int process_map_access( struct object *obj, unsigned int access ); static void process_poll_event( struct fd *fd, int event ); static void process_destroy( struct object *obj ); static const struct object_ops process_ops = { sizeof(struct process), /* size */ process_dump, /* dump */ no_get_type, /* get_type */ add_queue, /* add_queue */ remove_queue, /* remove_queue */ process_signaled, /* signaled */ no_satisfied, /* satisfied */ no_signal, /* signal */ no_get_fd, /* get_fd */ process_map_access, /* map_access */ default_get_sd, /* get_sd */ default_set_sd, /* set_sd */ no_lookup_name, /* lookup_name */ no_open_file, /* open_file */ no_close_handle, /* close_handle */ process_destroy /* destroy */ }; static const struct fd_ops process_fd_ops = { NULL, /* get_poll_events */ process_poll_event, /* poll_event */ NULL, /* flush */ NULL, /* get_fd_type */ NULL, /* ioctl */ NULL, /* queue_async */ NULL, /* reselect_async */ NULL /* cancel async */ }; /* process startup info */ struct startup_info { struct object obj; /* object header */ obj_handle_t hstdin; /* handle for stdin */ obj_handle_t hstdout; /* handle for stdout */ obj_handle_t hstderr; /* handle for stderr */ struct file *exe_file; /* file handle for main exe */ struct process *process; /* created process */ data_size_t data_size; /* size of startup data */ void *data; /* data for startup info */ }; static void startup_info_dump( struct object *obj, int verbose ); static int startup_info_signaled( struct object *obj, struct thread *thread ); static void startup_info_destroy( struct object *obj ); static const struct object_ops startup_info_ops = { sizeof(struct startup_info), /* size */ startup_info_dump, /* dump */ no_get_type, /* get_type */ add_queue, /* add_queue */ remove_queue, /* remove_queue */ startup_info_signaled, /* signaled */ no_satisfied, /* satisfied */ no_signal, /* signal */ no_get_fd, /* get_fd */ no_map_access, /* map_access */ default_get_sd, /* get_sd */ default_set_sd, /* set_sd */ no_lookup_name, /* lookup_name */ no_open_file, /* open_file */ no_close_handle, /* close_handle */ startup_info_destroy /* destroy */ }; struct ptid_entry { void *ptr; /* entry ptr */ unsigned int next; /* next free entry */ }; static struct ptid_entry *ptid_entries; /* array of ptid entries */ static unsigned int used_ptid_entries; /* number of entries in use */ static unsigned int alloc_ptid_entries; /* number of allocated entries */ static unsigned int next_free_ptid; /* next free entry */ static unsigned int last_free_ptid; /* last free entry */ static void kill_all_processes(void); #define PTID_OFFSET 8 /* offset for first ptid value */ /* allocate a new process or thread id */ unsigned int alloc_ptid( void *ptr ) { struct ptid_entry *entry; unsigned int id; if (used_ptid_entries < alloc_ptid_entries) { id = used_ptid_entries + PTID_OFFSET; entry = &ptid_entries[used_ptid_entries++]; } else if (next_free_ptid) { id = next_free_ptid; entry = &ptid_entries[id - PTID_OFFSET]; if (!(next_free_ptid = entry->next)) last_free_ptid = 0; } else /* need to grow the array */ { unsigned int count = alloc_ptid_entries + (alloc_ptid_entries / 2); if (!count) count = 64; if (!(entry = realloc( ptid_entries, count * sizeof(*entry) ))) { set_error( STATUS_NO_MEMORY ); return 0; } ptid_entries = entry; alloc_ptid_entries = count; id = used_ptid_entries + PTID_OFFSET; entry = &ptid_entries[used_ptid_entries++]; } entry->ptr = ptr; return id; } /* free a process or thread id */ void free_ptid( unsigned int id ) { struct ptid_entry *entry = &ptid_entries[id - PTID_OFFSET]; entry->ptr = NULL; entry->next = 0; /* append to end of free list so that we don't reuse it too early */ if (last_free_ptid) ptid_entries[last_free_ptid - PTID_OFFSET].next = id; else next_free_ptid = id; last_free_ptid = id; } /* retrieve the pointer corresponding to a process or thread id */ void *get_ptid_entry( unsigned int id ) { if (id < PTID_OFFSET) return NULL; if (id - PTID_OFFSET >= used_ptid_entries) return NULL; return ptid_entries[id - PTID_OFFSET].ptr; } /* return the main thread of the process */ struct thread *get_process_first_thread( struct process *process ) { struct list *ptr = list_head( &process->thread_list ); if (!ptr) return NULL; return LIST_ENTRY( ptr, struct thread, proc_entry ); } /* set the state of the process startup info */ static void set_process_startup_state( struct process *process, enum startup_state state ) { if (process->startup_state == STARTUP_IN_PROGRESS) process->startup_state = state; if (process->startup_info) { wake_up( &process->startup_info->obj, 0 ); release_object( process->startup_info ); process->startup_info = NULL; } } /* callback for server shutdown */ static void server_shutdown_timeout( void *arg ) { shutdown_timeout = NULL; if (!running_processes) { close_master_socket( 0 ); return; } switch(++shutdown_stage) { case 1: /* signal system processes to exit */ if (debug_level) fprintf( stderr, "wineserver: shutting down\n" ); if (shutdown_event) set_event( shutdown_event ); shutdown_timeout = add_timeout_user( 2 * -TICKS_PER_SEC, server_shutdown_timeout, NULL ); close_master_socket( 4 * -TICKS_PER_SEC ); break; case 2: /* now forcibly kill all processes (but still wait for SIGKILL timeouts) */ kill_all_processes(); break; } } /* forced shutdown, used for wineserver -k */ void shutdown_master_socket(void) { kill_all_processes(); shutdown_stage = 2; if (shutdown_timeout) { remove_timeout_user( shutdown_timeout ); shutdown_timeout = NULL; } close_master_socket( 2 * -TICKS_PER_SEC ); /* for SIGKILL timeouts */ } /* final cleanup once we are sure a process is really dead */ static void process_died( struct process *process ) { if (debug_level) fprintf( stderr, "%04x: *process killed*\n", process->id ); if (!process->is_system) { if (!--user_processes && !shutdown_stage && master_socket_timeout != TIMEOUT_INFINITE) shutdown_timeout = add_timeout_user( master_socket_timeout, server_shutdown_timeout, NULL ); } release_object( process ); if (!--running_processes && shutdown_stage) close_master_socket( 0 ); } /* callback for process sigkill timeout */ static void process_sigkill( void *private ) { struct process *process = private; process->sigkill_timeout = NULL; kill( process->unix_pid, SIGKILL ); process_died( process ); } /* start the sigkill timer for a process upon exit */ static void start_sigkill_timer( struct process *process ) { grab_object( process ); if (process->unix_pid != -1 && process->msg_fd) process->sigkill_timeout = add_timeout_user( -TICKS_PER_SEC, process_sigkill, process ); else process_died( process ); } /* create a new process and its main thread */ /* if the function fails the fd is closed */ struct thread *create_process( int fd, struct thread *parent_thread, int inherit_all ) { struct process *process; struct thread *thread = NULL; int request_pipe[2]; if (!(process = alloc_object( &process_ops ))) { close( fd ); goto error; } process->parent = NULL; process->debugger = NULL; process->handles = NULL; process->msg_fd = NULL; process->sigkill_timeout = NULL; process->unix_pid = -1; process->exit_code = STILL_ACTIVE; process->running_threads = 0; process->priority = PROCESS_PRIOCLASS_NORMAL; process->affinity = ~0; process->suspend = 0; process->is_system = 0; process->create_flags = 0; process->console = NULL; process->startup_state = STARTUP_IN_PROGRESS; process->startup_info = NULL; process->idle_event = NULL; process->queue = NULL; process->peb = NULL; process->ldt_copy = NULL; process->winstation = 0; process->desktop = 0; process->token = NULL; process->trace_data = 0; list_init( &process->thread_list ); list_init( &process->locks ); list_init( &process->classes ); list_init( &process->dlls ); process->start_time = current_time; process->end_time = 0; list_add_tail( &process_list, &process->entry ); if (!(process->id = process->group_id = alloc_ptid( process ))) { close( fd ); goto error; } if (!(process->msg_fd = create_anonymous_fd( &process_fd_ops, fd, &process->obj, 0 ))) goto error; /* create the handle table */ if (!parent_thread) { process->handles = alloc_handle_table( process, 0 ); process->token = token_create_admin(); } else { struct process *parent = parent_thread->process; process->parent = (struct process *)grab_object( parent ); process->handles = inherit_all ? copy_handle_table( process, parent ) : alloc_handle_table( process, 0 ); /* Note: for security reasons, starting a new process does not attempt * to use the current impersonation token for the new process */ process->token = token_duplicate( parent->token, TRUE, 0 ); } if (!process->handles || !process->token) goto error; /* create the main thread */ if (pipe( request_pipe ) == -1) { file_set_error(); goto error; } if (send_client_fd( process, request_pipe[1], 0 ) == -1) { close( request_pipe[0] ); close( request_pipe[1] ); goto error; } close( request_pipe[1] ); if (!(thread = create_thread( request_pipe[0], process ))) goto error; set_fd_events( process->msg_fd, POLLIN ); /* start listening to events */ release_object( process ); return thread; error: if (process) release_object( process ); /* if we failed to start our first process, close everything down */ if (!running_processes) close_master_socket( 0 ); return NULL; } /* initialize the current process and fill in the request */ data_size_t init_process( struct thread *thread ) { struct process *process = thread->process; struct startup_info *info = process->startup_info; init_process_tracing( process ); if (!info) return 0; return info->data_size; } /* destroy a process when its refcount is 0 */ static void process_destroy( struct object *obj ) { struct process *process = (struct process *)obj; assert( obj->ops == &process_ops ); /* we can't have a thread remaining */ assert( list_empty( &process->thread_list )); assert( !process->sigkill_timeout ); /* timeout should hold a reference to the process */ set_process_startup_state( process, STARTUP_ABORTED ); if (process->console) release_object( process->console ); if (process->parent) release_object( process->parent ); if (process->msg_fd) release_object( process->msg_fd ); list_remove( &process->entry ); if (process->idle_event) release_object( process->idle_event ); if (process->queue) release_object( process->queue ); if (process->id) free_ptid( process->id ); if (process->token) release_object( process->token ); } /* dump a process on stdout for debugging purposes */ static void process_dump( struct object *obj, int verbose ) { struct process *process = (struct process *)obj; assert( obj->ops == &process_ops ); fprintf( stderr, "Process id=%04x handles=%p\n", process->id, process->handles ); } static int process_signaled( struct object *obj, struct thread *thread ) { struct process *process = (struct process *)obj; return !process->running_threads; } static unsigned int process_map_access( struct object *obj, unsigned int access ) { if (access & GENERIC_READ) access |= STANDARD_RIGHTS_READ | SYNCHRONIZE; if (access & GENERIC_WRITE) access |= STANDARD_RIGHTS_WRITE | SYNCHRONIZE; if (access & GENERIC_EXECUTE) access |= STANDARD_RIGHTS_EXECUTE; if (access & GENERIC_ALL) access |= PROCESS_ALL_ACCESS; return access & ~(GENERIC_READ | GENERIC_WRITE | GENERIC_EXECUTE | GENERIC_ALL); } static void process_poll_event( struct fd *fd, int event ) { struct process *process = get_fd_user( fd ); assert( process->obj.ops == &process_ops ); if (event & (POLLERR | POLLHUP)) { release_object( process->msg_fd ); process->msg_fd = NULL; if (process->sigkill_timeout) /* already waiting for it to die */ { remove_timeout_user( process->sigkill_timeout ); process->sigkill_timeout = NULL; process_died( process ); } else kill_process( process, 0 ); } else if (event & POLLIN) receive_fd( process ); } static void startup_info_destroy( struct object *obj ) { struct startup_info *info = (struct startup_info *)obj; assert( obj->ops == &startup_info_ops ); free( info->data ); if (info->exe_file) release_object( info->exe_file ); if (info->process) release_object( info->process ); } static void startup_info_dump( struct object *obj, int verbose ) { struct startup_info *info = (struct startup_info *)obj; assert( obj->ops == &startup_info_ops ); fprintf( stderr, "Startup info in=%p out=%p err=%p\n", info->hstdin, info->hstdout, info->hstderr ); } static int startup_info_signaled( struct object *obj, struct thread *thread ) { struct startup_info *info = (struct startup_info *)obj; return info->process && info->process->startup_state != STARTUP_IN_PROGRESS; } /* get a process from an id (and increment the refcount) */ struct process *get_process_from_id( process_id_t id ) { struct object *obj = get_ptid_entry( id ); if (obj && obj->ops == &process_ops) return (struct process *)grab_object( obj ); set_error( STATUS_INVALID_PARAMETER ); return NULL; } /* get a process from a handle (and increment the refcount) */ struct process *get_process_from_handle( obj_handle_t handle, unsigned int access ) { return (struct process *)get_handle_obj( current->process, handle, access, &process_ops ); } /* find a dll from its base address */ static inline struct process_dll *find_process_dll( struct process *process, void *base ) { struct process_dll *dll; LIST_FOR_EACH_ENTRY( dll, &process->dlls, struct process_dll, entry ) { if (dll->base == base) return dll; } return NULL; } /* add a dll to a process list */ static struct process_dll *process_load_dll( struct process *process, struct file *file, void *base, const WCHAR *filename, data_size_t name_len ) { struct process_dll *dll; /* make sure we don't already have one with the same base address */ if (find_process_dll( process, base )) { set_error( STATUS_INVALID_PARAMETER ); return NULL; } if ((dll = mem_alloc( sizeof(*dll) ))) { dll->file = NULL; dll->base = base; dll->filename = NULL; dll->namelen = name_len; if (name_len && !(dll->filename = memdup( filename, name_len ))) { free( dll ); return NULL; } if (file) dll->file = grab_file_unless_removable( file ); list_add_tail( &process->dlls, &dll->entry ); } return dll; } /* remove a dll from a process list */ static void process_unload_dll( struct process *process, void *base ) { struct process_dll *dll = find_process_dll( process, base ); if (dll && (&dll->entry != list_head( &process->dlls ))) /* main exe can't be unloaded */ { if (dll->file) release_object( dll->file ); free( dll->filename ); list_remove( &dll->entry ); free( dll ); generate_debug_event( current, UNLOAD_DLL_DEBUG_EVENT, base ); } else set_error( STATUS_INVALID_PARAMETER ); } /* terminate a process with the given exit code */ static void terminate_process( struct process *process, struct thread *skip, int exit_code ) { struct list *ptr; if (skip && skip->process == process) /* move it to the end of the list */ { assert( skip->state != TERMINATED ); list_remove( &skip->proc_entry ); list_add_tail( &process->thread_list, &skip->proc_entry ); } grab_object( process ); /* make sure it doesn't get freed when threads die */ while ((ptr = list_head( &process->thread_list ))) { struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry ); if (exit_code) thread->exit_code = exit_code; if (thread == skip) break; kill_thread( thread, 1 ); } release_object( process ); } /* kill all processes */ static void kill_all_processes(void) { for (;;) { struct process *process; LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry ) { if (process->running_threads) break; } if (&process->entry == &process_list) break; /* no process found */ terminate_process( process, NULL, 1 ); } } /* kill all processes being attached to a console renderer */ void kill_console_processes( struct thread *renderer, int exit_code ) { for (;;) /* restart from the beginning of the list every time */ { struct process *process; /* find the first process being attached to 'renderer' and still running */ LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry ) { if (process == renderer->process) continue; if (!process->running_threads) continue; if (process->console && console_get_renderer( process->console ) == renderer) break; } if (&process->entry == &process_list) break; /* no process found */ terminate_process( process, NULL, exit_code ); } } /* a process has been killed (i.e. its last thread died) */ static void process_killed( struct process *process ) { struct handle_table *handles; struct list *ptr; assert( list_empty( &process->thread_list )); process->end_time = current_time; if (!process->is_system) close_process_desktop( process ); handles = process->handles; process->handles = NULL; if (handles) release_object( handles ); /* close the console attached to this process, if any */ free_console( process ); while ((ptr = list_head( &process->dlls ))) { struct process_dll *dll = LIST_ENTRY( ptr, struct process_dll, entry ); if (dll->file) release_object( dll->file ); free( dll->filename ); list_remove( &dll->entry ); free( dll ); } destroy_process_classes( process ); remove_process_locks( process ); set_process_startup_state( process, STARTUP_ABORTED ); finish_process_tracing( process ); start_sigkill_timer( process ); wake_up( &process->obj, 0 ); } /* add a thread to a process running threads list */ void add_process_thread( struct process *process, struct thread *thread ) { list_add_tail( &process->thread_list, &thread->proc_entry ); if (!process->running_threads++) { running_processes++; if (!process->is_system) { if (!user_processes++ && shutdown_timeout) { remove_timeout_user( shutdown_timeout ); shutdown_timeout = NULL; } } } grab_object( thread ); } /* remove a thread from a process running threads list */ void remove_process_thread( struct process *process, struct thread *thread ) { assert( process->running_threads > 0 ); assert( !list_empty( &process->thread_list )); list_remove( &thread->proc_entry ); if (!--process->running_threads) { /* we have removed the last running thread, exit the process */ process->exit_code = thread->exit_code; generate_debug_event( thread, EXIT_PROCESS_DEBUG_EVENT, process ); process_killed( process ); } else generate_debug_event( thread, EXIT_THREAD_DEBUG_EVENT, thread ); release_object( thread ); } /* suspend all the threads of a process */ void suspend_process( struct process *process ) { if (!process->suspend++) { struct list *ptr, *next; LIST_FOR_EACH_SAFE( ptr, next, &process->thread_list ) { struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry ); if (!thread->suspend) stop_thread( thread ); } } } /* resume all the threads of a process */ void resume_process( struct process *process ) { assert (process->suspend > 0); if (!--process->suspend) { struct list *ptr, *next; LIST_FOR_EACH_SAFE( ptr, next, &process->thread_list ) { struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry ); if (!thread->suspend) wake_thread( thread ); } } } /* kill a process on the spot */ void kill_process( struct process *process, int violent_death ) { if (violent_death) terminate_process( process, NULL, 1 ); else { struct list *ptr; grab_object( process ); /* make sure it doesn't get freed when threads die */ while ((ptr = list_head( &process->thread_list ))) { struct thread *thread = LIST_ENTRY( ptr, struct thread, proc_entry ); kill_thread( thread, 0 ); } release_object( process ); } } /* kill all processes being debugged by a given thread */ void kill_debugged_processes( struct thread *debugger, int exit_code ) { for (;;) /* restart from the beginning of the list every time */ { struct process *process; /* find the first process being debugged by 'debugger' and still running */ LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry ) { if (!process->running_threads) continue; if (process->debugger == debugger) break; } if (&process->entry == &process_list) break; /* no process found */ process->debugger = NULL; terminate_process( process, NULL, exit_code ); } } /* trigger a breakpoint event in a given process */ void break_process( struct process *process ) { struct thread *thread; suspend_process( process ); LIST_FOR_EACH_ENTRY( thread, &process->thread_list, struct thread, proc_entry ) { if (thread->context) /* inside an exception event already */ { break_thread( thread ); goto done; } } if ((thread = get_process_first_thread( process ))) thread->debug_break = 1; else set_error( STATUS_ACCESS_DENIED ); done: resume_process( process ); } /* detach a debugger from all its debuggees */ void detach_debugged_processes( struct thread *debugger ) { struct process *process; LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry ) { if (process->debugger == debugger && process->running_threads) { debugger_detach( process, debugger ); } } } void enum_processes( int (*cb)(struct process*, void*), void *user ) { struct list *ptr, *next; LIST_FOR_EACH_SAFE( ptr, next, &process_list ) { struct process *process = LIST_ENTRY( ptr, struct process, entry ); if ((cb)(process, user)) break; } } /* set the debugged flag in the process PEB */ int set_process_debug_flag( struct process *process, int flag ) { char data = (flag != 0); /* BeingDebugged flag is the byte at offset 2 in the PEB */ return write_process_memory( process, (char *)process->peb + 2, 1, &data ); } /* take a snapshot of currently running processes */ struct process_snapshot *process_snap( int *count ) { struct process_snapshot *snapshot, *ptr; struct process *process; if (!running_processes) return NULL; if (!(snapshot = mem_alloc( sizeof(*snapshot) * running_processes ))) return NULL; ptr = snapshot; LIST_FOR_EACH_ENTRY( process, &process_list, struct process, entry ) { if (!process->running_threads) continue; ptr->process = process; ptr->threads = process->running_threads; ptr->count = process->obj.refcount; ptr->priority = process->priority; ptr->handles = get_handle_table_count(process); grab_object( process ); ptr++; } if (!(*count = ptr - snapshot)) { free( snapshot ); snapshot = NULL; } return snapshot; } /* take a snapshot of the modules of a process */ struct module_snapshot *module_snap( struct process *process, int *count ) { struct module_snapshot *snapshot, *ptr; struct process_dll *dll; int total = 0; LIST_FOR_EACH_ENTRY( dll, &process->dlls, struct process_dll, entry ) total++; if (!(snapshot = mem_alloc( sizeof(*snapshot) * total ))) return NULL; ptr = snapshot; LIST_FOR_EACH_ENTRY( dll, &process->dlls, struct process_dll, entry ) { ptr->base = dll->base; ptr->size = dll->size; ptr->namelen = dll->namelen; ptr->filename = memdup( dll->filename, dll->namelen ); ptr++; } *count = total; return snapshot; } /* create a new process */ DECL_HANDLER(new_process) { struct startup_info *info; struct thread *thread; struct process *process; struct process *parent = current->process; int socket_fd = thread_get_inflight_fd( current, req->socket_fd ); if (socket_fd == -1) { set_error( STATUS_INVALID_PARAMETER ); return; } if (fcntl( socket_fd, F_SETFL, O_NONBLOCK ) == -1) { set_error( STATUS_INVALID_HANDLE ); close( socket_fd ); return; } if (shutdown_stage) { set_error( STATUS_SHUTDOWN_IN_PROGRESS ); close( socket_fd ); return; } /* build the startup info for a new process */ if (!(info = alloc_object( &startup_info_ops ))) return; info->hstdin = req->hstdin; info->hstdout = req->hstdout; info->hstderr = req->hstderr; info->exe_file = NULL; info->process = NULL; info->data_size = get_req_data_size(); info->data = NULL; if (req->exe_file && !(info->exe_file = get_file_obj( current->process, req->exe_file, FILE_READ_DATA ))) goto done; if (!(info->data = memdup( get_req_data(), info->data_size ))) goto done; if (!(thread = create_process( socket_fd, current, req->inherit_all ))) goto done; process = thread->process; process->create_flags = req->create_flags; process->startup_info = (struct startup_info *)grab_object( info ); /* connect to the window station */ connect_process_winstation( process, current ); /* thread will be actually suspended in init_done */ if (req->create_flags & CREATE_SUSPENDED) thread->suspend++; /* set the process console */ if (!(req->create_flags & (DETACHED_PROCESS | CREATE_NEW_CONSOLE))) { /* FIXME: some better error checking should be done... * like if hConOut and hConIn are console handles, then they should be on the same * physical console */ inherit_console( current, process, req->inherit_all ? req->hstdin : 0 ); } if (!req->inherit_all && !(req->create_flags & CREATE_NEW_CONSOLE)) { info->hstdin = duplicate_handle( parent, req->hstdin, process, 0, OBJ_INHERIT, DUPLICATE_SAME_ACCESS ); info->hstdout = duplicate_handle( parent, req->hstdout, process, 0, OBJ_INHERIT, DUPLICATE_SAME_ACCESS ); info->hstderr = duplicate_handle( parent, req->hstderr, process, 0, OBJ_INHERIT, DUPLICATE_SAME_ACCESS ); /* some handles above may have been invalid; this is not an error */ if (get_error() == STATUS_INVALID_HANDLE || get_error() == STATUS_OBJECT_TYPE_MISMATCH) clear_error(); } /* attach to the debugger if requested */ if (req->create_flags & (DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS)) set_process_debugger( process, current ); else if (parent->debugger && !(parent->create_flags & DEBUG_ONLY_THIS_PROCESS)) set_process_debugger( process, parent->debugger ); if (!(req->create_flags & CREATE_NEW_PROCESS_GROUP)) process->group_id = parent->group_id; info->process = (struct process *)grab_object( process ); reply->info = alloc_handle( current->process, info, SYNCHRONIZE, 0 ); reply->pid = get_process_id( process ); reply->tid = get_thread_id( thread ); reply->phandle = alloc_handle( parent, process, req->process_access, req->process_attr ); reply->thandle = alloc_handle( parent, thread, req->thread_access, req->thread_attr ); done: release_object( info ); } /* Retrieve information about a newly started process */ DECL_HANDLER(get_new_process_info) { struct startup_info *info; if ((info = (struct startup_info *)get_handle_obj( current->process, req->info, 0, &startup_info_ops ))) { reply->success = is_process_init_done( info->process ); reply->exit_code = info->process->exit_code; release_object( info ); } } /* Retrieve the new process startup info */ DECL_HANDLER(get_startup_info) { struct process *process = current->process; struct startup_info *info = process->startup_info; data_size_t size; if (!info) return; if (info->exe_file && !(reply->exe_file = alloc_handle( process, info->exe_file, GENERIC_READ, 0 ))) return; reply->hstdin = info->hstdin; reply->hstdout = info->hstdout; reply->hstderr = info->hstderr; /* we return the data directly without making a copy so this can only be called once */ size = info->data_size; if (size > get_reply_max_size()) size = get_reply_max_size(); set_reply_data_ptr( info->data, size ); info->data = NULL; info->data_size = 0; } /* signal the end of the process initialization */ DECL_HANDLER(init_process_done) { struct process_dll *dll; struct process *process = current->process; if (is_process_init_done(process)) { set_error( STATUS_INVALID_PARAMETER ); return; } if (!(dll = find_process_dll( process, req->module ))) { set_error( STATUS_DLL_NOT_FOUND ); return; } /* main exe is the first in the dll list */ list_remove( &dll->entry ); list_add_head( &process->dlls, &dll->entry ); generate_startup_debug_events( process, req->entry ); set_process_startup_state( process, STARTUP_DONE ); if (req->gui) process->idle_event = create_event( NULL, NULL, 0, 1, 0, NULL ); if (current->suspend + process->suspend > 0) stop_thread( current ); if (process->debugger) set_process_debug_flag( process, 1 ); } /* open a handle to a process */ DECL_HANDLER(open_process) { struct process *process = get_process_from_id( req->pid ); reply->handle = 0; if (process) { reply->handle = alloc_handle( current->process, process, req->access, req->attributes ); release_object( process ); } } /* terminate a process */ DECL_HANDLER(terminate_process) { struct process *process; if ((process = get_process_from_handle( req->handle, PROCESS_TERMINATE ))) { reply->self = (current->process == process); terminate_process( process, current, req->exit_code ); release_object( process ); } } /* fetch information about a process */ DECL_HANDLER(get_process_info) { struct process *process; if ((process = get_process_from_handle( req->handle, PROCESS_QUERY_INFORMATION ))) { reply->pid = get_process_id( process ); reply->ppid = process->parent ? get_process_id( process->parent ) : 0; reply->exit_code = process->exit_code; reply->priority = process->priority; reply->affinity = process->affinity; reply->peb = process->peb; reply->start_time = process->start_time; reply->end_time = process->end_time; release_object( process ); } } /* set information about a process */ DECL_HANDLER(set_process_info) { struct process *process; if ((process = get_process_from_handle( req->handle, PROCESS_SET_INFORMATION ))) { if (req->mask & SET_PROCESS_INFO_PRIORITY) process->priority = req->priority; if (req->mask & SET_PROCESS_INFO_AFFINITY) process->affinity = req->affinity; release_object( process ); } } /* read data from a process address space */ DECL_HANDLER(read_process_memory) { struct process *process; data_size_t len = get_reply_max_size(); if (!(process = get_process_from_handle( req->handle, PROCESS_VM_READ ))) return; if (len) { char *buffer = mem_alloc( len ); if (buffer) { if (read_process_memory( process, req->addr, len, buffer )) set_reply_data_ptr( buffer, len ); else free( buffer ); } } release_object( process ); } /* write data to a process address space */ DECL_HANDLER(write_process_memory) { struct process *process; if ((process = get_process_from_handle( req->handle, PROCESS_VM_WRITE ))) { data_size_t len = get_req_data_size(); if (len) write_process_memory( process, req->addr, len, get_req_data() ); else set_error( STATUS_INVALID_PARAMETER ); release_object( process ); } } /* notify the server that a dll has been loaded */ DECL_HANDLER(load_dll) { struct process_dll *dll; struct file *file = NULL; if (req->handle && !(file = get_file_obj( current->process, req->handle, FILE_READ_DATA ))) return; if ((dll = process_load_dll( current->process, file, req->base, get_req_data(), get_req_data_size() ))) { dll->size = req->size; dll->dbg_offset = req->dbg_offset; dll->dbg_size = req->dbg_size; dll->name = req->name; /* only generate event if initialization is done */ if (is_process_init_done( current->process )) generate_debug_event( current, LOAD_DLL_DEBUG_EVENT, dll ); } if (file) release_object( file ); } /* notify the server that a dll is being unloaded */ DECL_HANDLER(unload_dll) { process_unload_dll( current->process, req->base ); } /* retrieve information about a module in a process */ DECL_HANDLER(get_dll_info) { struct process *process; if ((process = get_process_from_handle( req->handle, PROCESS_QUERY_INFORMATION ))) { struct process_dll *dll; if (req->base_address) dll = find_process_dll( process, req->base_address ); else /* NULL means main module */ dll = list_head( &process->dlls ) ? LIST_ENTRY(list_head( &process->dlls ), struct process_dll, entry) : NULL; if (dll) { reply->size = dll->size; reply->entry_point = NULL; /* FIXME */ reply->filename_len = dll->namelen; if (dll->filename) { if (dll->namelen <= get_reply_max_size()) set_reply_data( dll->filename, dll->namelen ); else set_error( STATUS_BUFFER_TOO_SMALL ); } } else set_error( STATUS_DLL_NOT_FOUND ); release_object( process ); } } /* retrieve the process idle event */ DECL_HANDLER(get_process_idle_event) { struct process *process; reply->event = 0; if ((process = get_process_from_handle( req->handle, PROCESS_QUERY_INFORMATION ))) { if (process->idle_event && process != current->process) reply->event = alloc_handle( current->process, process->idle_event, EVENT_ALL_ACCESS, 0 ); release_object( process ); } } /* make the current process a system process */ DECL_HANDLER(make_process_system) { struct process *process = current->process; if (!shutdown_event) { if (!(shutdown_event = create_event( NULL, NULL, 0, 1, 0, NULL ))) return; make_object_static( (struct object *)shutdown_event ); } if (!(reply->event = alloc_handle( current->process, shutdown_event, SYNCHRONIZE, 0 ))) return; if (!process->is_system) { process->is_system = 1; close_process_desktop( process ); if (!--user_processes && !shutdown_stage && master_socket_timeout != TIMEOUT_INFINITE) shutdown_timeout = add_timeout_user( master_socket_timeout, server_shutdown_timeout, NULL ); } }