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xrdp-proprietary/xrdp/xrdp.c

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/*
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
xrdp: A Remote Desktop Protocol server.
Copyright (C) Jay Sorg 2004-2010
main program
*/
#if defined(_WIN32)
#include <windows.h>
#endif
#include "xrdp.h"
static struct xrdp_listen* g_listen = 0;
static long g_threadid = 0; /* main threadid */
#if defined(_WIN32)
static SERVICE_STATUS_HANDLE g_ssh = 0;
static SERVICE_STATUS g_service_status;
#endif
static long g_sync_mutex = 0;
static long g_sync1_mutex = 0;
static tbus g_term_event = 0;
static tbus g_sync_event = 0;
/* syncronize stuff */
static int g_sync_command = 0;
static long g_sync_result = 0;
static long g_sync_param1 = 0;
static long g_sync_param2 = 0;
static long (*g_sync_func)(long param1, long param2);
/*****************************************************************************/
long APP_CC
g_xrdp_sync(long (*sync_func)(long param1, long param2), long sync_param1,
long sync_param2)
{
long sync_result;
int sync_command;
if (tc_threadid_equal(tc_get_threadid(), g_threadid))
{
/* this is the main thread, call the function directly */
sync_result = sync_func(sync_param1, sync_param2);
}
else
{
tc_mutex_lock(g_sync1_mutex);
tc_mutex_lock(g_sync_mutex);
g_sync_param1 = sync_param1;
g_sync_param2 = sync_param2;
g_sync_func = sync_func;
g_sync_command = 100;
tc_mutex_unlock(g_sync_mutex);
g_set_wait_obj(g_sync_event);
do
{
g_sleep(100);
tc_mutex_lock(g_sync_mutex);
sync_command = g_sync_command;
sync_result = g_sync_result;
tc_mutex_unlock(g_sync_mutex);
}
while (sync_command != 0);
tc_mutex_unlock(g_sync1_mutex);
}
return sync_result;
}
/*****************************************************************************/
void DEFAULT_CC
xrdp_shutdown(int sig)
{
tbus threadid;
threadid = tc_get_threadid();
g_writeln("shutting down");
g_writeln("signal %d threadid %p", sig, threadid);
if (!g_is_wait_obj_set(g_term_event))
{
g_set_wait_obj(g_term_event);
}
}
/*****************************************************************************/
int APP_CC
g_is_term(void)
{
return g_is_wait_obj_set(g_term_event);
}
/*****************************************************************************/
void APP_CC
g_set_term(int in_val)
{
if (in_val)
{
g_set_wait_obj(g_term_event);
}
else
{
g_reset_wait_obj(g_term_event);
}
}
/*****************************************************************************/
tbus APP_CC
g_get_term_event(void)
{
return g_term_event;
}
/*****************************************************************************/
tbus APP_CC
g_get_sync_event(void)
{
return g_sync_event;
}
/*****************************************************************************/
void DEFAULT_CC
pipe_sig(int sig_num)
{
/* do nothing */
g_writeln("got SIGPIPE(%d)", sig_num);
}
/*****************************************************************************/
void APP_CC
g_loop(void)
{
tc_mutex_lock(g_sync_mutex);
if (g_sync_command != 0)
{
if (g_sync_func != 0)
{
if (g_sync_command == 100)
{
g_sync_result = g_sync_func(g_sync_param1, g_sync_param2);
}
}
g_sync_command = 0;
}
tc_mutex_unlock(g_sync_mutex);
}
/* win32 service control functions */
#if defined(_WIN32)
/*****************************************************************************/
VOID WINAPI
MyHandler(DWORD fdwControl)
{
if (g_ssh == 0)
{
return;
}
if (fdwControl == SERVICE_CONTROL_STOP)
{
g_service_status.dwCurrentState = SERVICE_STOP_PENDING;
g_set_term(1);
}
else if (fdwControl == SERVICE_CONTROL_PAUSE)
{
/* shouldn't happen */
}
else if (fdwControl == SERVICE_CONTROL_CONTINUE)
{
/* shouldn't happen */
}
else if (fdwControl == SERVICE_CONTROL_INTERROGATE)
{
}
else if (fdwControl == SERVICE_CONTROL_SHUTDOWN)
{
g_service_status.dwCurrentState = SERVICE_STOP_PENDING;
g_set_term(1);
}
SetServiceStatus(g_ssh, &g_service_status);
}
/*****************************************************************************/
static void DEFAULT_CC
log_event(HANDLE han, char* msg)
{
ReportEvent(han, EVENTLOG_INFORMATION_TYPE, 0, 0, 0, 1, 0, &msg, 0);
}
/*****************************************************************************/
VOID WINAPI
MyServiceMain(DWORD dwArgc, LPTSTR* lpszArgv)
{
WSADATA w;
char text[256];
int pid;
//HANDLE event_han;
// int fd;
// char text[256];
// fd = g_file_open("c:\\temp\\xrdp\\log.txt");
// g_file_write(fd, "hi\r\n", 4);
//event_han = RegisterEventSource(0, "xrdp");
//log_event(event_han, "hi xrdp log");
g_threadid = tc_get_threadid();
g_set_current_dir("c:\\temp\\xrdp");
g_listen = 0;
WSAStartup(2, &w);
g_sync_mutex = tc_mutex_create();
g_sync1_mutex = tc_mutex_create();
pid = g_getpid();
g_snprintf(text, 255, "xrdp_%8.8x_main_term", pid);
g_term_event = g_create_wait_obj(text);
g_snprintf(text, 255, "xrdp_%8.8x_main_sync", pid);
g_sync_event = g_create_wait_obj(text);
g_memset(&g_service_status, 0, sizeof(SERVICE_STATUS));
g_service_status.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
g_service_status.dwCurrentState = SERVICE_RUNNING;
g_service_status.dwControlsAccepted = SERVICE_CONTROL_INTERROGATE |
SERVICE_ACCEPT_STOP |
SERVICE_ACCEPT_SHUTDOWN;
g_service_status.dwWin32ExitCode = NO_ERROR;
g_service_status.dwServiceSpecificExitCode = 0;
g_service_status.dwCheckPoint = 0;
g_service_status.dwWaitHint = 0;
// g_sprintf(text, "calling RegisterServiceCtrlHandler\r\n");
// g_file_write(fd, text, g_strlen(text));
g_ssh = RegisterServiceCtrlHandler("xrdp", MyHandler);
if (g_ssh != 0)
{
// g_sprintf(text, "ok\r\n");
// g_file_write(fd, text, g_strlen(text));
SetServiceStatus(g_ssh, &g_service_status);
g_listen = xrdp_listen_create();
xrdp_listen_main_loop(g_listen);
g_sleep(100);
g_service_status.dwCurrentState = SERVICE_STOPPED;
SetServiceStatus(g_ssh, &g_service_status);
}
else
{
//g_sprintf(text, "RegisterServiceCtrlHandler failed\r\n");
//g_file_write(fd, text, g_strlen(text));
}
xrdp_listen_delete(g_listen);
tc_mutex_delete(g_sync_mutex);
tc_mutex_delete(g_sync1_mutex);
g_destroy_wait_obj(g_term_event);
g_destroy_wait_obj(g_sync_event);
WSACleanup();
//CloseHandle(event_han);
}
#endif
/*****************************************************************************/
int DEFAULT_CC
main(int argc, char** argv)
{
int test;
int host_be;
#if defined(_WIN32)
WSADATA w;
SC_HANDLE sc_man;
SC_HANDLE sc_ser;
int run_as_service;
SERVICE_TABLE_ENTRY te[2];
#else
int pid;
int fd;
int no_daemon;
char text[256];
char pid_file[256];
#endif
g_init();
/* check compiled endian with actual endian */
test = 1;
host_be = !((int)(*(unsigned char*)(&test)));
#if defined(B_ENDIAN)
if (!host_be)
#endif
#if defined(L_ENDIAN)
if (host_be)
#endif
{
g_writeln("endian wrong, edit arch.h");
return 0;
}
/* check long, int and void* sizes */
if (sizeof(int) != 4)
{
g_writeln("unusable int size, must be 4");
return 0;
}
if (sizeof(long) != sizeof(void*))
{
g_writeln("long size must match void* size");
return 0;
}
if (sizeof(long) != 4 && sizeof(long) != 8)
{
g_writeln("unusable long size, must be 4 or 8");
return 0;
}
if (sizeof(tui64) != 8)
{
g_writeln("unusable tui64 size, must be 8");
return 0;
}
#if defined(_WIN32)
run_as_service = 1;
if (argc == 2)
{
if (g_strncasecmp(argv[1], "-help", 255) == 0 ||
g_strncasecmp(argv[1], "--help", 255) == 0 ||
g_strncasecmp(argv[1], "-h", 255) == 0)
{
g_writeln("");
g_writeln("xrdp: A Remote Desktop Protocol server.");
g_writeln("Copyright (C) Jay Sorg 2004-2010");
g_writeln("See http://xrdp.sourceforge.net for more information.");
g_writeln("");
g_writeln("Usage: xrdp [options]");
g_writeln(" -h: show help");
g_writeln(" -install: install service");
g_writeln(" -remove: remove service");
g_writeln("");
g_exit(0);
}
else if (g_strncasecmp(argv[1], "-install", 255) == 0 ||
g_strncasecmp(argv[1], "--install", 255) == 0 ||
g_strncasecmp(argv[1], "-i", 255) == 0)
{
/* open service manager */
sc_man = OpenSCManager(0, 0, GENERIC_WRITE);
if (sc_man == 0)
{
g_writeln("error OpenSCManager, do you have rights?");
g_exit(0);
}
/* check if service is allready installed */
sc_ser = OpenService(sc_man, "xrdp", SERVICE_ALL_ACCESS);
if (sc_ser == 0)
{
/* install service */
CreateService(sc_man, "xrdp", "xrdp", SERVICE_ALL_ACCESS,
SERVICE_WIN32_OWN_PROCESS, SERVICE_DEMAND_START,
SERVICE_ERROR_IGNORE, "c:\\temp\\xrdp\\xrdp.exe",
0, 0, 0, 0, 0);
}
else
{
g_writeln("error service is allready installed");
CloseServiceHandle(sc_ser);
CloseServiceHandle(sc_man);
g_exit(0);
}
CloseServiceHandle(sc_man);
g_exit(0);
}
else if (g_strncasecmp(argv[1], "-remove", 255) == 0 ||
g_strncasecmp(argv[1], "--remove", 255) == 0 ||
g_strncasecmp(argv[1], "-r", 255) == 0)
{
/* open service manager */
sc_man = OpenSCManager(0, 0, GENERIC_WRITE);
if (sc_man == 0)
{
g_writeln("error OpenSCManager, do you have rights?");
g_exit(0);
}
/* check if service is allready installed */
sc_ser = OpenService(sc_man, "xrdp", SERVICE_ALL_ACCESS);
if (sc_ser == 0)
{
g_writeln("error service is not installed");
CloseServiceHandle(sc_man);
g_exit(0);
}
DeleteService(sc_ser);
CloseServiceHandle(sc_man);
g_exit(0);
}
else
{
g_writeln("Unknown Parameter");
g_writeln("xrdp -h for help");
g_writeln("");
g_exit(0);
}
}
else if (argc > 1)
{
g_writeln("Unknown Parameter");
g_writeln("xrdp -h for help");
g_writeln("");
g_exit(0);
}
if (run_as_service)
{
g_memset(&te, 0, sizeof(te));
te[0].lpServiceName = "xrdp";
te[0].lpServiceProc = MyServiceMain;
StartServiceCtrlDispatcher(&te);
g_exit(0);
}
WSAStartup(2, &w);
#else /* _WIN32 */
g_snprintf(pid_file, 255, "%s/xrdp.pid", XRDP_PID_PATH);
no_daemon = 0;
if (argc == 2)
{
if ((g_strncasecmp(argv[1], "-kill", 255) == 0) ||
(g_strncasecmp(argv[1], "--kill", 255) == 0) ||
(g_strncasecmp(argv[1], "-k", 255) == 0))
{
g_writeln("stopping xrdp");
/* read the xrdp.pid file */
fd = -1;
if (g_file_exist(pid_file)) /* xrdp.pid */
{
fd = g_file_open(pid_file); /* xrdp.pid */
}
if (fd == -1)
{
g_writeln("problem opening to xrdp.pid");
g_writeln("maybe its not running");
}
else
{
g_memset(text, 0, 32);
g_file_read(fd, text, 31);
pid = g_atoi(text);
g_writeln("stopping process id %d", pid);
if (pid > 0)
{
g_sigterm(pid);
}
g_file_close(fd);
}
g_exit(0);
}
else if (g_strncasecmp(argv[1], "-nodaemon", 255) == 0 ||
g_strncasecmp(argv[1], "--nodaemon", 255) == 0 ||
g_strncasecmp(argv[1], "-nd", 255) == 0 ||
g_strncasecmp(argv[1], "--nd", 255) == 0 ||
g_strncasecmp(argv[1], "-ns", 255) == 0 ||
g_strncasecmp(argv[1], "--ns", 255) == 0)
{
no_daemon = 1;
}
else if (g_strncasecmp(argv[1], "-help", 255) == 0 ||
g_strncasecmp(argv[1], "--help", 255) == 0 ||
g_strncasecmp(argv[1], "-h", 255) == 0)
{
g_writeln("");
g_writeln("xrdp: A Remote Desktop Protocol server.");
g_writeln("Copyright (C) Jay Sorg 2004-2010");
g_writeln("See http://xrdp.sourceforge.net for more information.");
g_writeln("");
g_writeln("Usage: xrdp [options]");
g_writeln(" -h: show help");
g_writeln(" -nodaemon: don't fork into background");
g_writeln(" -kill: shut down xrdp");
g_writeln("");
g_exit(0);
}
else if ((g_strncasecmp(argv[1], "-v", 255) == 0) ||
(g_strncasecmp(argv[1], "--version", 255) == 0))
{
g_writeln("");
g_writeln("xrdp: A Remote Desktop Protocol server.");
g_writeln("Copyright (C) Jay Sorg 2004-2010");
g_writeln("See http://xrdp.sourceforge.net for more information.");
g_writeln("Version 0.6.0");
g_writeln("");
g_exit(0);
}
else
{
g_writeln("Unknown Parameter");
g_writeln("xrdp -h for help");
g_writeln("");
g_exit(0);
}
}
else if (argc > 1)
{
g_writeln("Unknown Parameter");
g_writeln("xrdp -h for help");
g_writeln("");
g_exit(0);
}
if (g_file_exist(pid_file)) /* xrdp.pid */
{
g_writeln("It looks like xrdp is allready running,");
g_writeln("if not delete the xrdp.pid file and try again");
g_exit(0);
}
if (!no_daemon)
{
/* make sure we can write to pid file */
fd = g_file_open(pid_file); /* xrdp.pid */
if (fd == -1)
{
g_writeln("running in daemon mode with no access to pid files, quitting");
g_exit(0);
}
if (g_file_write(fd, "0", 1) == -1)
{
g_writeln("running in daemon mode with no access to pid files, quitting");
g_exit(0);
}
g_file_close(fd);
g_file_delete(pid_file);
}
if (!no_daemon)
{
/* start of daemonizing code */
pid = g_fork();
if (pid == -1)
{
g_writeln("problem forking");
g_exit(1);
}
if (0 != pid)
{
g_writeln("process %d started ok", pid);
/* exit, this is the main process */
g_exit(0);
}
g_sleep(1000);
g_file_close(0);
g_file_close(1);
g_file_close(2);
g_file_open("/dev/null");
g_file_open("/dev/null");
g_file_open("/dev/null");
/* end of daemonizing code */
}
if (!no_daemon)
{
/* write the pid to file */
pid = g_getpid();
fd = g_file_open(pid_file); /* xrdp.pid */
if (fd == -1)
{
g_writeln("trying to write process id to xrdp.pid");
g_writeln("problem opening xrdp.pid");
g_writeln("maybe no rights");
}
else
{
g_sprintf(text, "%d", pid);
g_file_write(fd, text, g_strlen(text));
g_file_close(fd);
}
}
#endif
g_threadid = tc_get_threadid();
g_listen = xrdp_listen_create();
g_signal_user_interrupt(xrdp_shutdown); /* SIGINT */
g_signal_kill(xrdp_shutdown); /* SIGKILL */
g_signal_pipe(pipe_sig); /* SIGPIPE */
g_signal_terminate(xrdp_shutdown); /* SIGTERM */
g_sync_mutex = tc_mutex_create();
g_sync1_mutex = tc_mutex_create();
pid = g_getpid();
g_snprintf(text, 255, "xrdp_%8.8x_main_term", pid);
g_term_event = g_create_wait_obj(text);
g_snprintf(text, 255, "xrdp_%8.8x_main_sync", pid);
g_sync_event = g_create_wait_obj(text);
if (g_term_event == 0)
{
g_writeln("error creating g_term_event");
}
xrdp_listen_main_loop(g_listen);
xrdp_listen_delete(g_listen);
tc_mutex_delete(g_sync_mutex);
tc_mutex_delete(g_sync1_mutex);
g_delete_wait_obj(g_term_event);
g_delete_wait_obj(g_sync_event);
#if defined(_WIN32)
/* I don't think it ever gets here */
/* when running in win32 app mode, control c exits right away */
WSACleanup();
#else
/* delete the xrdp.pid file */
g_file_delete(pid_file);
#endif
return 0;
}
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