/* this should be called first */
int APP_CC
xcommon_init(void)
{
if (g_display != 0)
{
LOG(10, ("xcommon_init: xcommon_init already called"));
return 0;
}
g_display = XOpenDisplay(0);
if (g_display == 0)
{
LOGM((LOG_LEVEL_ERROR, "xcommon_init: error, XOpenDisplay failed"));
return 1;
}
LOG(0, ("xcommon_init: connected to display ok"));
/* setting the error handlers can cause problem when shutting down
chansrv on some xlibs */
XSetErrorHandler(xcommon_error_handler);
//XSetIOErrorHandler(xcommon_fatal_handler);
g_x_socket = XConnectionNumber(g_display);
if (g_x_socket == 0)
{
LOGM((LOG_LEVEL_ERROR, "xcommon_init: XConnectionNumber failed"));
return 1;
}
g_x_wait_obj = g_create_wait_obj_from_socket(g_x_socket, 0);
g_screen_num = DefaultScreen(g_display);
g_screen = ScreenOfDisplay(g_display, g_screen_num);
g_root_window = RootWindowOfScreen(g_screen);
g_wm_delete_window_atom = XInternAtom(g_display, "WM_DELETE_WINDOW", 0);
g_wm_protocols_atom = XInternAtom(g_display, "WM_PROTOCOLS", 0);
g_utf8_string = XInternAtom(g_display, "UTF8_STRING", 0);
g_net_wm_name = XInternAtom(g_display, "_NET_WM_NAME", 0);
g_wm_state = XInternAtom(g_display, "WM_STATE", 0);
return 0;
}
/* return error */
int DEFAULT_CC
lib_mod_connect(struct mod* mod)
{
DEBUG(("in lib_mod_connect"));
/* clear screen */
mod->server_begin_update(mod);
mod->server_set_fgcolor(mod, 0);
mod->server_fill_rect(mod, 0, 0, mod->width, mod->height);
mod->server_end_update(mod);
/* connect */
if (rdp_rdp_connect(mod->rdp_layer, mod->ip, mod->port) == 0)
{
mod->sck = mod->rdp_layer->sec_layer->mcs_layer->iso_layer->tcp_layer->sck;
g_tcp_set_non_blocking(mod->sck);
g_tcp_set_no_delay(mod->sck);
mod->sck_obj = g_create_wait_obj_from_socket(mod->sck, 0);
DEBUG(("out lib_mod_connect"));
return 0;
}
DEBUG(("out lib_mod_connect error"));
return 1;
}
/* wait for incoming connections */
int APP_CC
xrdp_listen_main_loop(struct xrdp_listen* self)
{
int error;
int robjs_count;
int cont;
char port[8];
tbus robjs[8];
tbus term_obj;
tbus sync_obj;
tbus sck_obj;
tbus done_obj;
struct xrdp_process* process;
self->status = 1;
xrdp_listen_get_port(port, sizeof(port));
self->sck = g_tcp_socket();
g_tcp_set_non_blocking(self->sck);
error = g_tcp_bind(self->sck, port);
if (error != 0)
{
g_writeln("bind error in xrdp_listen_main_loop");
g_tcp_close(self->sck);
self->status = -1;
return 1;
}
error = g_tcp_listen(self->sck);
if (error == 0)
{
term_obj = g_get_term_event();
sync_obj = g_get_sync_event();
sck_obj = g_create_wait_obj_from_socket(self->sck, 0);
done_obj = self->pro_done_event;
cont = 1;
while (cont)
{
/* build the wait obj list */
robjs_count = 0;
robjs[robjs_count++] = term_obj;
robjs[robjs_count++] = sync_obj;
robjs[robjs_count++] = sck_obj;
robjs[robjs_count++] = done_obj;
/* wait */
if (g_obj_wait(robjs, robjs_count, 0, 0, -1) != 0)
{
/* error, should not get here */
g_sleep(100);
}
if (g_is_wait_obj_set(term_obj)) /* term */
{
break;
}
if (g_is_wait_obj_set(sync_obj)) /* sync */
{
g_reset_wait_obj(sync_obj);
g_loop();
}
if (g_is_wait_obj_set(sck_obj)) /* incomming connection */
{
error = g_tcp_accept(self->sck);
if ((error == -1) && g_tcp_last_error_would_block(self->sck))
{
/* should not get here */
g_sleep(100);
}
else if (error == -1)
{
/* error, should not get here */
break;
}
else
{
process = xrdp_process_create(self, self->pro_done_event);
if (xrdp_listen_add_pro(self, process) == 0)
{
/* start thread */
process->sck = error;
g_process = process;
tc_thread_create(xrdp_process_run, 0);
tc_sem_dec(g_process_sem); /* this will wait */
}
else
{
xrdp_process_delete(process);
}
}
}
if (g_is_wait_obj_set(done_obj)) /* pro_done_event */
{
g_reset_wait_obj(done_obj);
xrdp_listen_delete_done_pro(self);
}
}
/* stop listening */
g_delete_wait_obj_from_socket(sck_obj);
g_tcp_close(self->sck);
/* second loop to wait for all process threads to close */
cont = 1;
while (cont)
{
if (self->process_list->count == 0)
{
break;
}
/* build the wait obj list */
robjs_count = 0;
robjs[robjs_count++] = sync_obj;
robjs[robjs_count++] = done_obj;
/* wait */
if (g_obj_wait(robjs, robjs_count, 0, 0, -1) != 0)
{
/* error, should not get here */
g_sleep(100);
}
if (g_is_wait_obj_set(sync_obj)) /* sync */
{
g_reset_wait_obj(sync_obj);
g_loop();
}
if (g_is_wait_obj_set(done_obj)) /* pro_done_event */
{
g_reset_wait_obj(done_obj);
xrdp_listen_delete_done_pro(self);
}
}
}
else
{
DEBUG(("listen error in xrdp_listen_main_loop"));
}
self->status = -1;
return 0;
}
/**
*
* @brief Starts sesman main loop
*
*/
static void DEFAULT_CC
sesman_main_loop(void)
{
int in_sck;
int error;
int robjs_count;
int cont;
tbus sck_obj;
tbus robjs[8];
/*main program loop*/
log_message(&(g_cfg->log), LOG_LEVEL_INFO, "sesman[sesman_main_loop]: "
"listening...");
g_sck = g_tcp_socket();
g_tcp_set_non_blocking(g_sck);
error = scp_tcp_bind(g_sck, g_cfg->listen_address, g_cfg->listen_port);
if (error == 0)
{
error = g_tcp_listen(g_sck);
if (error == 0)
{
sck_obj = g_create_wait_obj_from_socket(g_sck, 0);
cont = 1;
while (cont)
{
/* build the wait obj list */
robjs_count = 0;
robjs[robjs_count++] = sck_obj;
robjs[robjs_count++] = g_term_event;
robjs[robjs_count++] = g_sync_event;
/* wait */
if (g_obj_wait(robjs, robjs_count, 0, 0, -1) != 0)
{
/* error, should not get here */
g_sleep(100);
}
if (g_is_wait_obj_set(g_term_event)) /* term */
{
break;
}
if (g_is_wait_obj_set(g_sync_event)) /* sync */
{
g_reset_wait_obj(g_sync_event);
session_sync_start();
}
if (g_is_wait_obj_set(sck_obj)) /* incomming connection */
{
in_sck = g_tcp_accept(g_sck);
if ((in_sck == -1) && g_tcp_last_error_would_block(g_sck))
{
/* should not get here */
g_sleep(100);
}
else if (in_sck == -1)
{
/* error, should not get here */
break;
}
else
{
/* we've got a connection, so we pass it to scp code */
log_message(&(g_cfg->log), LOG_LEVEL_INFO, "sesman[sesman_main_loop]: "
"new connection");
thread_scp_start(in_sck);
/* todo, do we have to wait here ? */
}
}
}
g_delete_wait_obj_from_socket(sck_obj);
}
else
{
log_message(&(g_cfg->log), LOG_LEVEL_ERROR, "sesman[sesman_main_loop]: "
"listen error %d (%s)", g_get_errno(), g_get_strerror());
}
}
else
{
log_message(&(g_cfg->log), LOG_LEVEL_ERROR, "bind error on "
"port '%s': %d (%s)", g_cfg->listen_port, g_get_errno(), g_get_strerror());
}
g_tcp_close(g_sck);
}
int APP_CC
xrdp_process_main_loop(struct xrdp_process* self)
{
int robjs_count;
int wobjs_count;
int cont;
int timeout;
tbus robjs[32];
tbus wobjs[32];
tbus term_obj;
tbus sck_obj;
self->status = 1;
self->session = libxrdp_init((long)self, self->sck);
/* this callback function is in xrdp_wm.c */
self->session->callback = callback;
/* this function is just above */
self->session->is_term = xrdp_is_term;
g_tcp_set_non_blocking(self->sck);
g_tcp_set_no_delay(self->sck);
if (libxrdp_process_incomming(self->session) == 0)
{
term_obj = g_get_term_event();
sck_obj = g_create_wait_obj_from_socket(self->sck, 0);
cont = 1;
while (cont)
{
/* build the wait obj list */
timeout = -1;
robjs_count = 0;
wobjs_count = 0;
robjs[robjs_count++] = term_obj;
robjs[robjs_count++] = sck_obj;
robjs[robjs_count++] = self->self_term_event;
xrdp_wm_get_wait_objs(self->wm, robjs, &robjs_count,
wobjs, &wobjs_count, &timeout);
/* wait */
if (g_obj_wait(robjs, robjs_count, wobjs, wobjs_count, timeout) != 0)
{
/* error, should not get here */
g_sleep(100);
}
if (g_is_wait_obj_set(term_obj)) /* term */
{
break;
}
if (g_is_wait_obj_set(self->self_term_event))
{
break;
}
if (g_is_wait_obj_set(sck_obj)) /* incomming client data */
{
if (xrdp_process_loop(self) != 0)
{
break;
}
}
if (xrdp_wm_check_wait_objs(self->wm) != 0)
{
break;
}
}
g_delete_wait_obj_from_socket(sck_obj);
libxrdp_disconnect(self->session);
}
xrdp_process_mod_end(self);
libxrdp_exit(self->session);
self->session = 0;
g_tcp_close(self->sck);
self->status = -1;
g_set_wait_obj(self->done_event);
return 0;
}
/* return error */
int DEFAULT_CC
lib_mod_connect(struct mod *mod)
{
int error;
int len;
int i;
int index;
int use_uds;
struct stream *s;
char con_port[256];
int retry = 0;
int send_error = 0;
int rc = 0;
unsigned int nbytes;
char pidfile[128];
char ip[16];
char cookie[33];
char sessionid[128];
char sessiontoken[128];
struct passwd pwd;
struct passwd *pwdresult;
char pwdbuffer[16384];
char message[256];
char reply[256];
int sock;
struct sockaddr_in server;
json_t *request;
json_t *response;
json_t *display;
json_error_t js_error;
mod->server_msg(mod, "GoPCNX started connection", 0);
sock = socket(AF_INET , SOCK_STREAM , 0);
if (sock == -1) {
mod->server_msg(mod, "Socket creation failed", 0);
return 1;
}
server.sin_addr.s_addr = inet_addr("127.0.0.1");
server.sin_family = AF_INET;
server.sin_port = htons(9999);
if (connect(sock , (struct sockaddr *)&server , sizeof(server)) < 0) {
mod->server_msg(mod, "Server connection failed", 0);
return 1;
}
request = json_object();
json_object_set(request, "username", json_string(mod->username));
json_object_set(request, "password", json_string(mod->password));
json_object_set(request, "ip", json_string("127.0.0.1"));
json_object_set(request, "link", json_string("lan"));
display = json_object();
json_object_set(display, "width", json_integer(mod->width));
json_object_set(display, "height", json_integer(mod->height));
json_object_set(request, "display", display);
json_decref(display);
g_snprintf(message, sizeof(message)-1, "%s\n", json_dumps(request, 0));
json_decref(request);
if (send(sock, message, strlen(message), 0) < 0) {
mod->server_msg(mod, "Server request failed", 0);
return 1;
}
if (recv(sock, reply, sizeof(reply), 0) < 0) {
mod->server_msg(mod, "Server reply failed", 0);
return 1;
}
response = json_loads(reply, 0, &js_error);
if (response == NULL) {
mod->server_msg(mod, "Decoding response failed", 0);
return 1;
} else {
json_t *nxsession = json_object_get(response, "session");
json_t *err = json_object_get(response, "err");
int resume = json_is_true(json_object_get(response, "resume"));
if (err) {
mod->server_msg(mod, json_string_value(err), 0);
return 1;
} else if (resume) {
resize_nxproxy(mod);
} else {
char sessionstash[512];
const char *cookie = json_string_value(json_object_get(nxsession, "cookie"));
const char *host = json_string_value(json_object_get(nxsession, "host"));
json_int_t port = json_integer_value(json_object_get(nxsession, "port"));
getpwnam_r(mod->username, &pwd, pwdbuffer, sizeof(pwdbuffer), &pwdresult);
if (pwdresult == NULL) {
mod->server_msg(mod, "Uid lookup failed", 0);
return 1;
}
if (!start_nxproxy(mod, cookie, (int)port)) {
mod->server_msg(mod, "nxproxy failed to start", 0);
return 1;
}
json_decref(nxsession);
}
}
json_decref(response);
LIB_DEBUG(mod, "in lib_mod_connect");
/* clear screen */
mod->server_begin_update(mod);
mod->server_set_fgcolor(mod, 0);
mod->server_fill_rect(mod, 0, 0, mod->width, mod->height);
mod->server_end_update(mod);
mod->server_msg(mod, "started connecting", 0);
/* only support 8, 15, 16, and 24 bpp connections from rdp client */
if (mod->bpp != 8 && mod->bpp != 15 && mod->bpp != 16 && mod->bpp != 24)
{
mod->server_msg(mod,
"error - only supporting 8, 15, 16, and 24 bpp rdp connections", 0);
LIB_DEBUG(mod, "out lib_mod_connect error");
return 1;
}
if (g_strcmp(mod->ip, "") == 0)
{
mod->server_msg(mod, "error - no ip set", 0);
LIB_DEBUG(mod, "out lib_mod_connect error");
return 1;
}
make_stream(s);
g_snprintf(con_port, 255, "%s", mod->port);
use_uds = 0;
if (con_port[0] == '/')
{
use_uds = 1;
}
mod->sck_closed = 0;
i = 0;
RECONNECT:
while (1)
{
if (use_uds)
{
mod->sck = g_tcp_local_socket();
}
else
{
mod->sck = g_tcp_socket();
g_tcp_set_non_blocking(mod->sck);
g_tcp_set_no_delay(mod->sck);
}
/* mod->server_msg(mod, "connecting...", 0); */
if (use_uds)
{
error = g_tcp_local_connect(mod->sck, con_port);
}
else
{
error = g_tcp_connect(mod->sck, mod->ip, con_port);
}
if (error == -1)
{
if (g_tcp_last_error_would_block(mod->sck))
{
error = 0;
index = 0;
while (!g_tcp_can_send(mod->sck, 100))
{
index++;
if ((index >= 30) || mod->server_is_term(mod))
{
mod->server_msg(mod, "connect timeout", 0);
error = 1;
break;
}
}
}
else
{
/* mod->server_msg(mod, "connect error", 0); */
}
}
if (error == 0)
{
break;
}
g_tcp_close(mod->sck);
mod->sck = 0;
i++;
if (i >= 20)
{
mod->server_msg(mod, "connection problem, giving up", 0);
break;
}
g_sleep(500);
}
if (error == 0)
{
if (use_uds)
{
lib_mod_log_peer(mod);
}
}
if (error == 0)
{
/* send version message */
init_stream(s, 8192);
s_push_layer(s, iso_hdr, 4);
out_uint16_le(s, 103);
out_uint32_le(s, 301);
out_uint32_le(s, 0);
out_uint32_le(s, 0);
out_uint32_le(s, 0);
out_uint32_le(s, 1);
s_mark_end(s);
len = (int)(s->end - s->data);
s_pop_layer(s, iso_hdr);
out_uint32_le(s, len);
lib_send(mod, s->data, len);
}
if (error == 0)
{
/* send screen size message */
init_stream(s, 8192);
s_push_layer(s, iso_hdr, 4);
out_uint16_le(s, 103);
out_uint32_le(s, 300);
out_uint32_le(s, mod->width);
out_uint32_le(s, mod->height);
out_uint32_le(s, mod->bpp);
out_uint32_le(s, 0);
s_mark_end(s);
len = (int)(s->end - s->data);
s_pop_layer(s, iso_hdr);
out_uint32_le(s, len);
lib_send(mod, s->data, len);
}
if (error == 0)
{
/* send invalidate message */
init_stream(s, 8192);
s_push_layer(s, iso_hdr, 4);
out_uint16_le(s, 103);
out_uint32_le(s, 200);
/* x and y */
i = 0;
out_uint32_le(s, i);
/* width and height */
i = ((mod->width & 0xffff) << 16) | mod->height;
out_uint32_le(s, i);
out_uint32_le(s, 0);
out_uint32_le(s, 0);
s_mark_end(s);
len = (int)(s->end - s->data);
s_pop_layer(s, iso_hdr);
out_uint32_le(s, len);
send_error = lib_send(mod, s->data, len);
}
if (send_error) {
if (retry < 50) {
g_tcp_close(mod->sck);
mod->server_msg(mod, "Doing a retry", 0);
retry++;
g_sleep(1000);
goto RECONNECT;
}
error = send_error;
}
free_stream(s);
if (error != 0)
{
mod->server_msg(mod, "some problem", 0);
LIB_DEBUG(mod, "out lib_mod_connect error");
return 1;
}
else
{
mod->server_msg(mod, "connected ok", 0);
mod->sck_obj = g_create_wait_obj_from_socket(mod->sck, 0);
}
LIB_DEBUG(mod, "out lib_mod_connect");
return 0;
}
/**
*
* @brief Starts sesman main loop
*
*/
static void DEFAULT_CC
sesman_main_loop(void)
{
int in_sck;
int error;
int robjs_count;
int cont;
tbus sck_obj;
tbus robjs[8];
g_sck = g_tcp_socket();
if (g_sck < 0)
{
log_message(LOG_LEVEL_ERROR, "error opening socket, g_tcp_socket() failed...");
return;
}
g_tcp_set_non_blocking(g_sck);
error = scp_tcp_bind(g_sck, g_cfg->listen_address, g_cfg->listen_port);
if (error == 0)
{
error = g_tcp_listen(g_sck);
if (error == 0)
{
log_message(LOG_LEVEL_INFO, "listening to port %s on %s",
g_cfg->listen_port, g_cfg->listen_address);
sck_obj = g_create_wait_obj_from_socket(g_sck, 0);
cont = 1;
while (cont)
{
/* build the wait obj list */
robjs_count = 0;
robjs[robjs_count++] = sck_obj;
robjs[robjs_count++] = g_term_event;
/* wait */
if (g_obj_wait(robjs, robjs_count, 0, 0, -1) != 0)
{
/* error, should not get here */
g_sleep(100);
}
if (g_is_wait_obj_set(g_term_event)) /* term */
{
break;
}
if (g_is_wait_obj_set(sck_obj)) /* incoming connection */
{
in_sck = g_tcp_accept(g_sck);
if ((in_sck == -1) && g_tcp_last_error_would_block(g_sck))
{
/* should not get here */
g_sleep(100);
}
else if (in_sck == -1)
{
/* error, should not get here */
break;
}
else
{
/* we've got a connection, so we pass it to scp code */
LOG_DBG("new connection");
scp_process_start((void*)(tintptr)in_sck);
g_sck_close(in_sck);
}
}
}
g_delete_wait_obj_from_socket(sck_obj);
}
else
{
log_message(LOG_LEVEL_ERROR, "listen error %d (%s)",
g_get_errno(), g_get_strerror());
}
}
else
{
log_message(LOG_LEVEL_ERROR, "bind error on "
"port '%s': %d (%s)", g_cfg->listen_port,
g_get_errno(), g_get_strerror());
}
g_tcp_close(g_sck);
}
/* return error */
int DEFAULT_CC
lib_mod_connect(struct mod* mod)
{
int error;
int len;
int i;
int index;
int use_uds;
struct stream* s;
char con_port[256];
LIB_DEBUG(mod, "in lib_mod_connect");
/* clear screen */
mod->server_begin_update(mod);
mod->server_set_fgcolor(mod, 0);
mod->server_fill_rect(mod, 0, 0, mod->width, mod->height);
mod->server_end_update(mod);
mod->server_msg(mod, "started connecting", 0);
/* only support 8, 15, 16, and 24 bpp connections from rdp client */
if (mod->bpp != 8 && mod->bpp != 15 && mod->bpp != 16 && mod->bpp != 24)
{
mod->server_msg(mod,
"error - only supporting 8, 15, 16, and 24 bpp rdp connections", 0);
LIB_DEBUG(mod, "out lib_mod_connect error");
return 1;
}
if (g_strcmp(mod->ip, "") == 0)
{
mod->server_msg(mod, "error - no ip set", 0);
LIB_DEBUG(mod, "out lib_mod_connect error");
return 1;
}
make_stream(s);
g_sprintf(con_port, "%s", mod->port);
use_uds = 0;
if (con_port[0] == '/')
{
use_uds = 1;
}
mod->sck_closed = 0;
i = 0;
while (1)
{
if (use_uds)
{
mod->sck = g_tcp_local_socket();
}
else
{
mod->sck = g_tcp_socket();
}
g_tcp_set_non_blocking(mod->sck);
g_tcp_set_no_delay(mod->sck);
mod->server_msg(mod, "connecting...", 0);
if (use_uds)
{
error = g_tcp_local_connect(mod->sck, con_port);
}
else
{
error = g_tcp_connect(mod->sck, mod->ip, con_port);
}
if (error == -1)
{
if (g_tcp_last_error_would_block(mod->sck))
{
error = 0;
index = 0;
while (!g_tcp_can_send(mod->sck, 100))
{
index++;
if ((index >= 30) || mod->server_is_term(mod))
{
mod->server_msg(mod, "connect timeout", 0);
error = 1;
break;
}
}
}
else
{
mod->server_msg(mod, "connect error", 0);
}
}
if (error == 0)
{
break;
}
g_tcp_close(mod->sck);
mod->sck = 0;
i++;
if (i >= 4)
{
mod->server_msg(mod, "connection problem, giving up", 0);
break;
}
g_sleep(250);
}
if (error == 0)
{
init_stream(s, 8192);
s_push_layer(s, iso_hdr, 4);
out_uint16_le(s, 103);
out_uint32_le(s, 300);
out_uint32_le(s, mod->width);
out_uint32_le(s, mod->height);
out_uint32_le(s, mod->bpp);
out_uint32_le(s, mod->rfx); /* send rfx flag */
s_mark_end(s);
len = (int)(s->end - s->data);
s_pop_layer(s, iso_hdr);
out_uint32_le(s, len);
lib_send(mod, s->data, len);
}
if (error == 0)
{
init_stream(s, 8192);
s_push_layer(s, iso_hdr, 4);
out_uint16_le(s, 103);
out_uint32_le(s, 200);
/* x and y */
i = 0;
out_uint32_le(s, i);
/* width and height */
i = ((mod->width & 0xffff) << 16) | mod->height;
out_uint32_le(s, i);
out_uint32_le(s, 0);
out_uint32_le(s, 0);
s_mark_end(s);
len = (int)(s->end - s->data);
s_pop_layer(s, iso_hdr);
out_uint32_le(s, len);
lib_send(mod, s->data, len);
}
free_stream(s);
if (error != 0)
{
mod->server_msg(mod, "some problem", 0);
LIB_DEBUG(mod, "out lib_mod_connect error");
return 1;
}
else
{
mod->server_msg(mod, "connected ok", 0);
mod->sck_obj = g_create_wait_obj_from_socket(mod->sck, 0);
}
LIB_DEBUG(mod, "out lib_mod_connect");
return 0;
}
