945 lines
30 KiB
C
945 lines
30 KiB
C
/*
|
|
* Server-side process management
|
|
*
|
|
* Copyright (C) 1998 Alexandre Julliard
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include <assert.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <signal.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <sys/time.h>
|
|
#ifdef HAVE_SYS_SOCKET_H
|
|
# include <sys/socket.h>
|
|
#endif
|
|
#include <unistd.h>
|
|
|
|
#include "winbase.h"
|
|
#include "winnt.h"
|
|
|
|
#include "handle.h"
|
|
#include "process.h"
|
|
#include "thread.h"
|
|
#include "request.h"
|
|
|
|
/* process structure */
|
|
|
|
static struct process *first_process;
|
|
static int running_processes;
|
|
|
|
/* process operations */
|
|
|
|
static void process_dump( struct object *obj, int verbose );
|
|
static int process_signaled( struct object *obj, struct thread *thread );
|
|
static void process_destroy( struct object *obj );
|
|
|
|
static const struct object_ops process_ops =
|
|
{
|
|
sizeof(struct process), /* size */
|
|
process_dump, /* dump */
|
|
add_queue, /* add_queue */
|
|
remove_queue, /* remove_queue */
|
|
process_signaled, /* signaled */
|
|
no_satisfied, /* satisfied */
|
|
NULL, /* get_poll_events */
|
|
NULL, /* poll_event */
|
|
no_read_fd, /* get_read_fd */
|
|
no_write_fd, /* get_write_fd */
|
|
no_flush, /* flush */
|
|
no_get_file_info, /* get_file_info */
|
|
process_destroy /* destroy */
|
|
};
|
|
|
|
/* process startup info */
|
|
|
|
struct startup_info
|
|
{
|
|
struct object obj; /* object header */
|
|
int inherit_all; /* inherit all handles from parent */
|
|
int create_flags; /* creation flags */
|
|
int start_flags; /* flags from startup info */
|
|
int hstdin; /* handle for stdin */
|
|
int hstdout; /* handle for stdout */
|
|
int hstderr; /* handle for stderr */
|
|
int cmd_show; /* main window show mode */
|
|
struct file *exe_file; /* file handle for main exe */
|
|
char *filename; /* file name for main exe */
|
|
struct process *process; /* created process */
|
|
struct thread *thread; /* created thread */
|
|
};
|
|
|
|
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 */
|
|
add_queue, /* add_queue */
|
|
remove_queue, /* remove_queue */
|
|
startup_info_signaled, /* signaled */
|
|
no_satisfied, /* satisfied */
|
|
NULL, /* get_poll_events */
|
|
NULL, /* poll_event */
|
|
no_read_fd, /* get_read_fd */
|
|
no_write_fd, /* get_write_fd */
|
|
no_flush, /* flush */
|
|
no_get_file_info, /* get_file_info */
|
|
startup_info_destroy /* destroy */
|
|
};
|
|
|
|
|
|
/* set the console and stdio handles for a newly created process */
|
|
static int set_process_console( struct process *process, struct process *parent,
|
|
struct startup_info *info, struct init_process_request *req )
|
|
{
|
|
if (process->create_flags & CREATE_NEW_CONSOLE)
|
|
{
|
|
if (!alloc_console( process )) return 0;
|
|
}
|
|
else if (parent && !(process->create_flags & DETACHED_PROCESS))
|
|
{
|
|
if (parent->console_in) process->console_in = grab_object( parent->console_in );
|
|
if (parent->console_out) process->console_out = grab_object( parent->console_out );
|
|
}
|
|
if (parent)
|
|
{
|
|
if (!info->inherit_all && !(info->start_flags & STARTF_USESTDHANDLES))
|
|
{
|
|
/* duplicate the handle from the parent into this process */
|
|
req->hstdin = duplicate_handle( parent, info->hstdin, process,
|
|
0, TRUE, DUPLICATE_SAME_ACCESS );
|
|
req->hstdout = duplicate_handle( parent, info->hstdout, process,
|
|
0, TRUE, DUPLICATE_SAME_ACCESS );
|
|
req->hstderr = duplicate_handle( parent, info->hstderr, process,
|
|
0, TRUE, DUPLICATE_SAME_ACCESS );
|
|
}
|
|
else
|
|
{
|
|
req->hstdin = info->hstdin;
|
|
req->hstdout = info->hstdout;
|
|
req->hstderr = info->hstderr;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
/* no parent, use handles to the console for stdio */
|
|
req->hstdin = alloc_handle( process, process->console_in,
|
|
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, 1 );
|
|
req->hstdout = alloc_handle( process, process->console_out,
|
|
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, 1 );
|
|
req->hstderr = alloc_handle( process, process->console_out,
|
|
GENERIC_READ | GENERIC_WRITE | SYNCHRONIZE, 1 );
|
|
}
|
|
/* some handles above may have been invalid; this is not an error */
|
|
if (get_error() == STATUS_INVALID_HANDLE) clear_error();
|
|
return 1;
|
|
}
|
|
|
|
/* create a new process and its main thread */
|
|
struct thread *create_process( int fd )
|
|
{
|
|
struct process *process;
|
|
struct thread *thread = NULL;
|
|
|
|
if (!(process = alloc_object( &process_ops, -1 )))
|
|
{
|
|
close( fd );
|
|
return NULL;
|
|
}
|
|
process->next = NULL;
|
|
process->prev = NULL;
|
|
process->thread_list = NULL;
|
|
process->debugger = NULL;
|
|
process->handles = NULL;
|
|
process->exit_code = STILL_ACTIVE;
|
|
process->running_threads = 0;
|
|
process->priority = NORMAL_PRIORITY_CLASS;
|
|
process->affinity = 1;
|
|
process->suspend = 0;
|
|
process->create_flags = 0;
|
|
process->console_in = NULL;
|
|
process->console_out = NULL;
|
|
process->init_event = NULL;
|
|
process->idle_event = NULL;
|
|
process->queue = NULL;
|
|
process->ldt_copy = NULL;
|
|
process->ldt_flags = NULL;
|
|
process->exe.next = NULL;
|
|
process->exe.prev = NULL;
|
|
process->exe.file = NULL;
|
|
process->exe.dbg_offset = 0;
|
|
process->exe.dbg_size = 0;
|
|
gettimeofday( &process->start_time, NULL );
|
|
if ((process->next = first_process) != NULL) process->next->prev = process;
|
|
first_process = process;
|
|
|
|
/* create the main thread */
|
|
if (!(thread = create_thread( fd, process ))) goto error;
|
|
|
|
/* create the init done event */
|
|
if (!(process->init_event = create_event( NULL, 0, 1, 0 ))) goto error;
|
|
|
|
add_process_thread( process, thread );
|
|
release_object( process );
|
|
return thread;
|
|
|
|
error:
|
|
if (thread) release_object( thread );
|
|
release_object( process );
|
|
return NULL;
|
|
}
|
|
|
|
/* initialize the current process and fill in the request */
|
|
static void init_process( int ppid, struct init_process_request *req )
|
|
{
|
|
struct process *process = current->process;
|
|
struct thread *parent_thread = get_thread_from_pid( ppid );
|
|
struct process *parent = NULL;
|
|
struct startup_info *info = NULL;
|
|
|
|
if (parent_thread)
|
|
{
|
|
parent = parent_thread->process;
|
|
info = parent_thread->info;
|
|
if (!info)
|
|
{
|
|
fatal_protocol_error( current, "init_process: parent but no info\n" );
|
|
return;
|
|
}
|
|
if (info->thread)
|
|
{
|
|
fatal_protocol_error( current, "init_process: called twice?\n" );
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* set the process flags */
|
|
process->create_flags = info ? info->create_flags : CREATE_NEW_CONSOLE;
|
|
|
|
/* create the handle table */
|
|
if (parent && info->inherit_all == 2) /* HACK! */
|
|
process->handles = grab_object( parent->handles );
|
|
else if (parent && info->inherit_all)
|
|
process->handles = copy_handle_table( process, parent );
|
|
else
|
|
process->handles = alloc_handle_table( process, 0 );
|
|
if (!process->handles) goto error;
|
|
|
|
/* retrieve the main exe file */
|
|
req->exe_file = -1;
|
|
if (parent && info->exe_file)
|
|
{
|
|
process->exe.file = (struct file *)grab_object( info->exe_file );
|
|
if ((req->exe_file = alloc_handle( process, process->exe.file, GENERIC_READ, 0 )) == -1)
|
|
goto error;
|
|
}
|
|
|
|
/* set the process console */
|
|
if (!set_process_console( process, parent, info, req )) goto error;
|
|
|
|
if (parent)
|
|
{
|
|
/* attach to the debugger if requested */
|
|
if (process->create_flags & (DEBUG_PROCESS | DEBUG_ONLY_THIS_PROCESS))
|
|
set_process_debugger( process, parent_thread );
|
|
else if (parent && parent->debugger && !(parent->create_flags & DEBUG_ONLY_THIS_PROCESS))
|
|
set_process_debugger( process, parent->debugger );
|
|
}
|
|
|
|
/* thread will be actually suspended in init_done */
|
|
if (process->create_flags & CREATE_SUSPENDED) current->suspend++;
|
|
|
|
if (info)
|
|
{
|
|
req->start_flags = info->start_flags;
|
|
req->cmd_show = info->cmd_show;
|
|
strcpy( req->filename, info->filename );
|
|
info->process = (struct process *)grab_object( process );
|
|
info->thread = (struct thread *)grab_object( current );
|
|
wake_up( &info->obj, 0 );
|
|
}
|
|
else
|
|
{
|
|
req->start_flags = STARTF_USESTDHANDLES;
|
|
req->cmd_show = 0;
|
|
req->filename[0] = 0;
|
|
}
|
|
error:
|
|
}
|
|
|
|
/* 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( !process->thread_list );
|
|
if (process->next) process->next->prev = process->prev;
|
|
if (process->prev) process->prev->next = process->next;
|
|
else first_process = process->next;
|
|
if (process->init_event) release_object( process->init_event );
|
|
if (process->idle_event) release_object( process->idle_event );
|
|
if (process->queue) release_object( process->queue );
|
|
if (process->exe.file) release_object( process->exe.file );
|
|
}
|
|
|
|
/* 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 next=%p prev=%p console=%p/%p handles=%p\n",
|
|
process->next, process->prev, process->console_in, process->console_out,
|
|
process->handles );
|
|
}
|
|
|
|
static int process_signaled( struct object *obj, struct thread *thread )
|
|
{
|
|
struct process *process = (struct process *)obj;
|
|
return !process->running_threads;
|
|
}
|
|
|
|
|
|
static void startup_info_destroy( struct object *obj )
|
|
{
|
|
struct startup_info *info = (struct startup_info *)obj;
|
|
assert( obj->ops == &startup_info_ops );
|
|
if (info->filename) free( info->filename );
|
|
if (info->exe_file) release_object( info->exe_file );
|
|
if (info->process) release_object( info->process );
|
|
if (info->thread) release_object( info->thread );
|
|
}
|
|
|
|
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 flags=%x in=%d out=%d err=%d name='%s'\n",
|
|
info->start_flags, info->hstdin, info->hstdout, info->hstderr, info->filename );
|
|
}
|
|
|
|
static int startup_info_signaled( struct object *obj, struct thread *thread )
|
|
{
|
|
struct startup_info *info = (struct startup_info *)obj;
|
|
return (info->thread != NULL);
|
|
}
|
|
|
|
|
|
/* build a reply for the wait_process request */
|
|
static void build_wait_process_reply( struct thread *thread, struct object *obj, int signaled )
|
|
{
|
|
struct wait_process_request *req = get_req_ptr( thread );
|
|
if (obj)
|
|
{
|
|
struct startup_info *info = (struct startup_info *)obj;
|
|
assert( obj->ops == &startup_info_ops );
|
|
|
|
req->pid = get_process_id( info->process );
|
|
req->tid = get_thread_id( info->thread );
|
|
req->phandle = alloc_handle( thread->process, info->process,
|
|
PROCESS_ALL_ACCESS, req->pinherit );
|
|
req->thandle = alloc_handle( thread->process, info->thread,
|
|
THREAD_ALL_ACCESS, req->tinherit );
|
|
if (info->process->init_event)
|
|
req->event = alloc_handle( thread->process, info->process->init_event,
|
|
EVENT_ALL_ACCESS, 0 );
|
|
else
|
|
req->event = -1;
|
|
|
|
/* FIXME: set_error */
|
|
}
|
|
release_object( thread->info );
|
|
thread->info = NULL;
|
|
}
|
|
|
|
/* get a process from an id (and increment the refcount) */
|
|
struct process *get_process_from_id( void *id )
|
|
{
|
|
struct process *p = first_process;
|
|
while (p && (p != id)) p = p->next;
|
|
if (p) grab_object( p );
|
|
else set_error( STATUS_INVALID_PARAMETER );
|
|
return p;
|
|
}
|
|
|
|
/* get a process from a handle (and increment the refcount) */
|
|
struct process *get_process_from_handle( int handle, unsigned int access )
|
|
{
|
|
return (struct process *)get_handle_obj( current->process, handle,
|
|
access, &process_ops );
|
|
}
|
|
|
|
/* add a dll to a process list */
|
|
static struct process_dll *process_load_dll( struct process *process, struct file *file,
|
|
void *base )
|
|
{
|
|
struct process_dll *dll;
|
|
|
|
/* make sure we don't already have one with the same base address */
|
|
for (dll = process->exe.next; dll; dll = dll->next) if (dll->base == base)
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return NULL;
|
|
}
|
|
|
|
if ((dll = mem_alloc( sizeof(*dll) )))
|
|
{
|
|
dll->prev = &process->exe;
|
|
dll->file = NULL;
|
|
dll->base = base;
|
|
if (file) dll->file = (struct file *)grab_object( file );
|
|
if ((dll->next = process->exe.next)) dll->next->prev = dll;
|
|
process->exe.next = dll;
|
|
}
|
|
return dll;
|
|
}
|
|
|
|
/* remove a dll from a process list */
|
|
static void process_unload_dll( struct process *process, void *base )
|
|
{
|
|
struct process_dll *dll;
|
|
|
|
for (dll = process->exe.next; dll; dll = dll->next)
|
|
{
|
|
if (dll->base == base)
|
|
{
|
|
if (dll->file) release_object( dll->file );
|
|
if (dll->next) dll->next->prev = dll->prev;
|
|
if (dll->prev) dll->prev->next = dll->next;
|
|
free( dll );
|
|
generate_debug_event( current, UNLOAD_DLL_DEBUG_EVENT, base );
|
|
return;
|
|
}
|
|
}
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
}
|
|
|
|
/* a process has been killed (i.e. its last thread died) */
|
|
static void process_killed( struct process *process )
|
|
{
|
|
assert( !process->thread_list );
|
|
gettimeofday( &process->end_time, NULL );
|
|
if (process->handles) release_object( process->handles );
|
|
process->handles = NULL;
|
|
free_console( process );
|
|
while (process->exe.next)
|
|
{
|
|
struct process_dll *dll = process->exe.next;
|
|
process->exe.next = dll->next;
|
|
if (dll->file) release_object( dll->file );
|
|
free( dll );
|
|
}
|
|
if (process->exe.file) release_object( process->exe.file );
|
|
process->exe.file = NULL;
|
|
wake_up( &process->obj, 0 );
|
|
if (!--running_processes)
|
|
{
|
|
/* last process died, close global handles */
|
|
close_global_handles();
|
|
/* this will cause the select loop to terminate */
|
|
if (!persistent_server) close_master_socket();
|
|
}
|
|
}
|
|
|
|
/* add a thread to a process running threads list */
|
|
void add_process_thread( struct process *process, struct thread *thread )
|
|
{
|
|
thread->proc_next = process->thread_list;
|
|
thread->proc_prev = NULL;
|
|
if (thread->proc_next) thread->proc_next->proc_prev = thread;
|
|
process->thread_list = thread;
|
|
if (!process->running_threads++) running_processes++;
|
|
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( process->thread_list );
|
|
|
|
if (thread->proc_next) thread->proc_next->proc_prev = thread->proc_prev;
|
|
if (thread->proc_prev) thread->proc_prev->proc_next = thread->proc_next;
|
|
else process->thread_list = thread->proc_next;
|
|
|
|
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 thread *thread = process->thread_list;
|
|
for (; thread; thread = thread->proc_next)
|
|
{
|
|
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 thread *thread = process->thread_list;
|
|
for (; thread; thread = thread->proc_next)
|
|
{
|
|
if (!thread->suspend) continue_thread( thread );
|
|
}
|
|
}
|
|
}
|
|
|
|
/* kill a process on the spot */
|
|
static void kill_process( struct process *process, struct thread *skip, int exit_code )
|
|
{
|
|
struct thread *thread = process->thread_list;
|
|
while (thread)
|
|
{
|
|
struct thread *next = thread->proc_next;
|
|
thread->exit_code = exit_code;
|
|
if (thread != skip) kill_thread( thread, 1 );
|
|
thread = next;
|
|
}
|
|
}
|
|
|
|
/* 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 = first_process;
|
|
/* find the first process being debugged by 'debugger' and still running */
|
|
while (process && (process->debugger != debugger || !process->running_threads))
|
|
process = process->next;
|
|
if (!process) return;
|
|
process->debugger = NULL;
|
|
kill_process( process, NULL, exit_code );
|
|
}
|
|
}
|
|
|
|
/* get all information about a process */
|
|
static void get_process_info( struct process *process, struct get_process_info_request *req )
|
|
{
|
|
req->pid = process;
|
|
req->debugged = (process->debugger != 0);
|
|
req->exit_code = process->exit_code;
|
|
req->priority = process->priority;
|
|
req->process_affinity = process->affinity;
|
|
req->system_affinity = 1;
|
|
}
|
|
|
|
/* set all information about a process */
|
|
static void set_process_info( struct process *process,
|
|
struct set_process_info_request *req )
|
|
{
|
|
if (req->mask & SET_PROCESS_INFO_PRIORITY)
|
|
process->priority = req->priority;
|
|
if (req->mask & SET_PROCESS_INFO_AFFINITY)
|
|
{
|
|
if (req->affinity != 1) set_error( STATUS_INVALID_PARAMETER );
|
|
else process->affinity = req->affinity;
|
|
}
|
|
}
|
|
|
|
/* read data from a process memory space */
|
|
/* len is the total size (in ints), max is the size we can actually store in the output buffer */
|
|
/* we read the total size in all cases to check for permissions */
|
|
static void read_process_memory( struct process *process, const int *addr,
|
|
size_t len, size_t max, int *dest )
|
|
{
|
|
struct thread *thread = process->thread_list;
|
|
|
|
if ((unsigned int)addr % sizeof(int)) /* address must be aligned */
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
if (!thread) /* process is dead */
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if (suspend_for_ptrace( thread ))
|
|
{
|
|
while (len > 0 && max)
|
|
{
|
|
if (read_thread_int( thread, addr++, dest++ ) == -1) goto done;
|
|
max--;
|
|
len--;
|
|
}
|
|
/* check the rest for read permission */
|
|
if (len > 0)
|
|
{
|
|
int dummy, page = get_page_size() / sizeof(int);
|
|
while (len >= page)
|
|
{
|
|
addr += page;
|
|
len -= page;
|
|
if (read_thread_int( thread, addr - 1, &dummy ) == -1) goto done;
|
|
}
|
|
if (len && (read_thread_int( thread, addr + len - 1, &dummy ) == -1)) goto done;
|
|
}
|
|
done:
|
|
resume_thread( thread );
|
|
}
|
|
}
|
|
|
|
/* write data to a process memory space */
|
|
/* len is the total size (in ints), max is the size we can actually read from the input buffer */
|
|
/* we check the total size for write permissions */
|
|
static void write_process_memory( struct process *process, int *addr, size_t len,
|
|
size_t max, unsigned int first_mask,
|
|
unsigned int last_mask, const int *src )
|
|
{
|
|
struct thread *thread = process->thread_list;
|
|
|
|
if (!len || ((unsigned int)addr % sizeof(int))) /* address must be aligned */
|
|
{
|
|
set_error( STATUS_INVALID_PARAMETER );
|
|
return;
|
|
}
|
|
if (!thread) /* process is dead */
|
|
{
|
|
set_error( STATUS_ACCESS_DENIED );
|
|
return;
|
|
}
|
|
if (suspend_for_ptrace( thread ))
|
|
{
|
|
/* first word is special */
|
|
if (len > 1)
|
|
{
|
|
if (write_thread_int( thread, addr++, *src++, first_mask ) == -1) goto done;
|
|
len--;
|
|
max--;
|
|
}
|
|
else last_mask &= first_mask;
|
|
|
|
while (len > 1 && max)
|
|
{
|
|
if (write_thread_int( thread, addr++, *src++, ~0 ) == -1) goto done;
|
|
max--;
|
|
len--;
|
|
}
|
|
|
|
if (max)
|
|
{
|
|
/* last word is special too */
|
|
if (write_thread_int( thread, addr, *src, last_mask ) == -1) goto done;
|
|
}
|
|
else
|
|
{
|
|
/* check the rest for write permission */
|
|
int page = get_page_size() / sizeof(int);
|
|
while (len >= page)
|
|
{
|
|
addr += page;
|
|
len -= page;
|
|
if (write_thread_int( thread, addr - 1, 0, 0 ) == -1) goto done;
|
|
}
|
|
if (len && (write_thread_int( thread, addr + len - 1, 0, 0 ) == -1)) goto done;
|
|
}
|
|
done:
|
|
resume_thread( thread );
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
for (process = first_process; process; process = process->next)
|
|
{
|
|
if (!process->running_threads) continue;
|
|
ptr->process = process;
|
|
ptr->threads = process->running_threads;
|
|
ptr->count = process->obj.refcount;
|
|
ptr->priority = process->priority;
|
|
grab_object( process );
|
|
ptr++;
|
|
}
|
|
*count = running_processes;
|
|
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;
|
|
|
|
for (dll = &process->exe; dll; dll = dll->next) total++;
|
|
if (!(snapshot = mem_alloc( sizeof(*snapshot) * total ))) return NULL;
|
|
|
|
for (ptr = snapshot, dll = &process->exe; dll; dll = dll->next, ptr++)
|
|
{
|
|
ptr->base = dll->base;
|
|
}
|
|
*count = total;
|
|
return snapshot;
|
|
}
|
|
|
|
|
|
/* create a new process */
|
|
DECL_HANDLER(new_process)
|
|
{
|
|
size_t len = get_req_strlen( req, req->filename );
|
|
struct startup_info *info;
|
|
int sock[2];
|
|
|
|
if (current->info)
|
|
{
|
|
fatal_protocol_error( current, "new_process: another process is being created\n" );
|
|
return;
|
|
}
|
|
|
|
/* build the startup info for a new process */
|
|
if (!(info = alloc_object( &startup_info_ops, -1 ))) return;
|
|
info->inherit_all = req->inherit_all;
|
|
info->create_flags = req->create_flags;
|
|
info->start_flags = req->start_flags;
|
|
info->hstdin = req->hstdin;
|
|
info->hstdout = req->hstdout;
|
|
info->hstderr = req->hstderr;
|
|
info->cmd_show = req->cmd_show;
|
|
info->exe_file = NULL;
|
|
info->filename = NULL;
|
|
info->process = NULL;
|
|
info->thread = NULL;
|
|
|
|
if ((req->exe_file != -1) &&
|
|
!(info->exe_file = get_file_obj( current->process, req->exe_file, GENERIC_READ )))
|
|
{
|
|
release_object( info );
|
|
return;
|
|
}
|
|
|
|
if (!(info->filename = memdup( req->filename, len+1 )))
|
|
{
|
|
release_object( info );
|
|
return;
|
|
}
|
|
info->filename[len] = 0;
|
|
|
|
if (req->alloc_fd)
|
|
{
|
|
if (socketpair( AF_UNIX, SOCK_STREAM, 0, sock ) == -1)
|
|
{
|
|
file_set_error();
|
|
release_object( info );
|
|
return;
|
|
}
|
|
if (!create_process( sock[0] ))
|
|
{
|
|
release_object( info );
|
|
close( sock[1] );
|
|
return;
|
|
}
|
|
/* thread object will be released when the thread gets killed */
|
|
set_reply_fd( current, sock[1] );
|
|
}
|
|
current->info = info;
|
|
}
|
|
|
|
/* Wait for the new process to start */
|
|
DECL_HANDLER(wait_process)
|
|
{
|
|
if (!current->info)
|
|
{
|
|
fatal_protocol_error( current, "wait_process: no process is being created\n" );
|
|
return;
|
|
}
|
|
req->pid = 0;
|
|
req->tid = 0;
|
|
req->phandle = -1;
|
|
req->thandle = -1;
|
|
req->event = -1;
|
|
if (req->cancel)
|
|
{
|
|
release_object( current->info );
|
|
current->info = NULL;
|
|
}
|
|
else
|
|
{
|
|
struct object *obj = ¤t->info->obj;
|
|
sleep_on( 1, &obj, SELECT_TIMEOUT, req->timeout, build_wait_process_reply );
|
|
}
|
|
}
|
|
|
|
/* initialize a new process */
|
|
DECL_HANDLER(init_process)
|
|
{
|
|
if (!current->unix_pid)
|
|
{
|
|
fatal_protocol_error( current, "init_process: init_thread not called yet\n" );
|
|
return;
|
|
}
|
|
current->process->ldt_copy = req->ldt_copy;
|
|
current->process->ldt_flags = req->ldt_flags;
|
|
init_process( req->ppid, req );
|
|
}
|
|
|
|
/* signal the end of the process initialization */
|
|
DECL_HANDLER(init_process_done)
|
|
{
|
|
struct process *process = current->process;
|
|
if (!process->init_event)
|
|
{
|
|
fatal_protocol_error( current, "init_process_done: no event\n" );
|
|
return;
|
|
}
|
|
process->exe.base = req->module;
|
|
generate_startup_debug_events( current->process, req->entry );
|
|
set_event( process->init_event );
|
|
release_object( process->init_event );
|
|
process->init_event = NULL;
|
|
if (req->gui) process->idle_event = create_event( NULL, 0, 1, 0 );
|
|
if (current->suspend + current->process->suspend > 0) stop_thread( current );
|
|
req->debugged = (current->process->debugger != 0);
|
|
}
|
|
|
|
/* open a handle to a process */
|
|
DECL_HANDLER(open_process)
|
|
{
|
|
struct process *process = get_process_from_id( req->pid );
|
|
req->handle = -1;
|
|
if (process)
|
|
{
|
|
req->handle = alloc_handle( current->process, process, req->access, req->inherit );
|
|
release_object( process );
|
|
}
|
|
}
|
|
|
|
/* terminate a process */
|
|
DECL_HANDLER(terminate_process)
|
|
{
|
|
struct process *process;
|
|
|
|
if ((process = get_process_from_handle( req->handle, PROCESS_TERMINATE )))
|
|
{
|
|
req->self = (current->process == process);
|
|
kill_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 )))
|
|
{
|
|
get_process_info( process, req );
|
|
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 )))
|
|
{
|
|
set_process_info( process, req );
|
|
release_object( process );
|
|
}
|
|
}
|
|
|
|
/* read data from a process address space */
|
|
DECL_HANDLER(read_process_memory)
|
|
{
|
|
struct process *process;
|
|
|
|
if ((process = get_process_from_handle( req->handle, PROCESS_VM_READ )))
|
|
{
|
|
read_process_memory( process, req->addr, req->len,
|
|
get_req_size( req, req->data, sizeof(int) ), req->data );
|
|
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 )))
|
|
{
|
|
write_process_memory( process, req->addr, req->len,
|
|
get_req_size( req, req->data, sizeof(int) ),
|
|
req->first_mask, req->last_mask, req->data );
|
|
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 != -1) &&
|
|
!(file = get_file_obj( current->process, req->handle, GENERIC_READ ))) return;
|
|
|
|
if ((dll = process_load_dll( current->process, file, req->base )))
|
|
{
|
|
dll->dbg_offset = req->dbg_offset;
|
|
dll->dbg_size = req->dbg_size;
|
|
dll->name = req->name;
|
|
/* only generate event if initialization is done */
|
|
if (!current->process->init_event)
|
|
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 );
|
|
}
|
|
|
|
/* wait for a process to start waiting on input */
|
|
/* FIXME: only returns event for now, wait is done in the client */
|
|
DECL_HANDLER(wait_input_idle)
|
|
{
|
|
struct process *process;
|
|
|
|
req->event = -1;
|
|
if ((process = get_process_from_handle( req->handle, PROCESS_QUERY_INFORMATION )))
|
|
{
|
|
if (process->idle_event && process != current->process && process->queue != current->queue)
|
|
req->event = alloc_handle( current->process, process->idle_event,
|
|
EVENT_ALL_ACCESS, 0 );
|
|
release_object( process );
|
|
}
|
|
}
|