217 lines
6.0 KiB
C
217 lines
6.0 KiB
C
|
/**
|
||
|
* xrdp: A Remote Desktop Protocol server.
|
||
|
*
|
||
|
* Copyright (C) Jay Sorg 2004-2022, all xrdp contributors
|
||
|
*
|
||
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
* you may not use this file except in compliance with the License.
|
||
|
* You may obtain a copy of the License at
|
||
|
*
|
||
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
*
|
||
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
* See the License for the specific language governing permissions and
|
||
|
* limitations under the License.
|
||
|
*/
|
||
|
|
||
|
/**
|
||
|
*
|
||
|
* @file libipm/ercp.c
|
||
|
* @brief ERCP definitions
|
||
|
* @author Matt Burt
|
||
|
*/
|
||
|
|
||
|
#if defined(HAVE_CONFIG_H)
|
||
|
#include <config_ac.h>
|
||
|
#endif
|
||
|
|
||
|
#include "ercp.h"
|
||
|
#include "libipm.h"
|
||
|
#include "guid.h"
|
||
|
#include "os_calls.h"
|
||
|
#include "trans.h"
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
static const char *
|
||
|
msgno_to_str(unsigned short n)
|
||
|
{
|
||
|
return
|
||
|
(n == E_ERCP_SESSION_ANNOUNCE_EVENT) ? "ERCP_SESSION_ANNOUNCE_EVENT" :
|
||
|
(n == E_ERCP_SESSION_FINISHED_EVENT) ? "ERCP_SESSION_FINISHED_EVENT" :
|
||
|
NULL;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
const char *
|
||
|
ercp_msgno_to_str(enum ercp_msg_code n, char *buff, unsigned int buff_size)
|
||
|
{
|
||
|
const char *str = msgno_to_str((unsigned short)n);
|
||
|
|
||
|
if (str == NULL)
|
||
|
{
|
||
|
g_snprintf(buff, buff_size, "[code #%d]", (int)n);
|
||
|
}
|
||
|
else
|
||
|
{
|
||
|
g_snprintf(buff, buff_size, "%s", str);
|
||
|
}
|
||
|
|
||
|
return buff;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
int
|
||
|
ercp_init_trans(struct trans *trans)
|
||
|
{
|
||
|
return libipm_init_trans(trans, LIBIPM_FAC_ERCP, msgno_to_str);
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
void
|
||
|
ercp_trans_from_eicp_trans(struct trans *trans,
|
||
|
ttrans_data_in callback_func,
|
||
|
void *callback_data)
|
||
|
{
|
||
|
libipm_change_facility(trans, LIBIPM_FAC_EICP, LIBIPM_FAC_ERCP);
|
||
|
trans->trans_data_in = callback_func;
|
||
|
trans->callback_data = callback_data;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
int
|
||
|
ercp_msg_in_check_available(struct trans *trans, int *available)
|
||
|
{
|
||
|
return libipm_msg_in_check_available(trans, available);
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
int
|
||
|
ercp_msg_in_wait_available(struct trans *trans)
|
||
|
{
|
||
|
return libipm_msg_in_wait_available(trans);
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
enum ercp_msg_code
|
||
|
ercp_msg_in_get_msgno(const struct trans *trans)
|
||
|
{
|
||
|
return (enum ercp_msg_code)libipm_msg_in_get_msgno(trans);
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
void
|
||
|
ercp_msg_in_reset(struct trans *trans)
|
||
|
{
|
||
|
libipm_msg_in_reset(trans);
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
int
|
||
|
ercp_send_session_announce_event(struct trans *trans,
|
||
|
unsigned int display,
|
||
|
uid_t uid,
|
||
|
enum scp_session_type type,
|
||
|
unsigned short start_width,
|
||
|
unsigned short start_height,
|
||
|
unsigned char bpp,
|
||
|
const struct guid *guid,
|
||
|
const char *start_ip_addr,
|
||
|
time_t start_time)
|
||
|
{
|
||
|
struct libipm_fsb guid_descriptor = { (void *)guid, sizeof(*guid) };
|
||
|
|
||
|
return libipm_msg_out_simple_send(
|
||
|
trans,
|
||
|
(int)E_ERCP_SESSION_ANNOUNCE_EVENT,
|
||
|
"uiyqqyBsx",
|
||
|
display,
|
||
|
uid,
|
||
|
type,
|
||
|
start_width,
|
||
|
start_height,
|
||
|
bpp,
|
||
|
&guid_descriptor,
|
||
|
start_ip_addr,
|
||
|
start_time);
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
int
|
||
|
ercp_get_session_announce_event(struct trans *trans,
|
||
|
unsigned int *display,
|
||
|
uid_t *uid,
|
||
|
enum scp_session_type *type,
|
||
|
unsigned short *start_width,
|
||
|
unsigned short *start_height,
|
||
|
unsigned char *bpp,
|
||
|
struct guid *guid,
|
||
|
const char **start_ip_addr,
|
||
|
time_t *start_time)
|
||
|
{
|
||
|
/* Intermediate values */
|
||
|
uint32_t i_display;
|
||
|
int32_t i_uid;
|
||
|
uint8_t i_type;
|
||
|
uint16_t i_width;
|
||
|
uint16_t i_height;
|
||
|
uint8_t i_bpp;
|
||
|
int64_t i_start_time;
|
||
|
|
||
|
const struct libipm_fsb guid_descriptor = { (void *)guid, sizeof(*guid) };
|
||
|
|
||
|
int rv = libipm_msg_in_parse(
|
||
|
trans,
|
||
|
"uiyqqyBsx",
|
||
|
&i_display,
|
||
|
&i_uid,
|
||
|
&i_type,
|
||
|
&i_width,
|
||
|
&i_height,
|
||
|
&i_bpp,
|
||
|
&guid_descriptor,
|
||
|
start_ip_addr,
|
||
|
&i_start_time);
|
||
|
|
||
|
if (rv == 0)
|
||
|
{
|
||
|
if (display != NULL)
|
||
|
{
|
||
|
*display = i_display;
|
||
|
}
|
||
|
*uid = (uid_t)i_uid;
|
||
|
*type = (enum scp_session_type)i_type;
|
||
|
*start_width = i_width;
|
||
|
*start_height = i_height;
|
||
|
*bpp = i_bpp;
|
||
|
*start_time = (time_t)i_start_time;
|
||
|
}
|
||
|
|
||
|
return rv;
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
int
|
||
|
ercp_send_session_finished_event(struct trans *trans)
|
||
|
{
|
||
|
return libipm_msg_out_simple_send(
|
||
|
trans, (int)E_ERCP_SESSION_FINISHED_EVENT, NULL);
|
||
|
}
|
||
|
|
||
|
/*****************************************************************************/
|
||
|
|
||
|
int
|
||
|
ercp_send_session_reconnect_event(struct trans *trans)
|
||
|
{
|
||
|
return libipm_msg_out_simple_send(
|
||
|
trans, (int)E_ERCP_SESSION_RECONNECT_EVENT, NULL);
|
||
|
}
|