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