skarg
116 lines
4.8 KiB
C
116 lines
4.8 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2006 Steve Karg <skarg@users.sourceforge.net>
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*********************************************************************/
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#include <stddef.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include "config.h"
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#include "txbuf.h"
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#include "bacdef.h"
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#include "bacdcode.h"
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#include "bacerror.h"
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#include "apdu.h"
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#include "npdu.h"
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#include "abort.h"
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#include "reject.h"
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#include "dcc.h"
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static char *My_Password = "AnnaRoseKarg";
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void handler_device_communication_control(uint8_t * service_request,
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uint16_t service_len,
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BACNET_ADDRESS * src, BACNET_CONFIRMED_SERVICE_DATA * service_data)
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{
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uint16_t timeDuration = 0;
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BACNET_COMMUNICATION_ENABLE_DISABLE state = COMMUNICATION_ENABLE;
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BACNET_CHARACTER_STRING password;
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int len = 0;
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int pdu_len = 0;
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BACNET_ADDRESS my_address;
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int bytes_sent = 0;
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// decode the service request only
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len = dcc_decode_service_request(service_request,
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service_len, &timeDuration, &state, &password);
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fprintf(stderr, "DeviceCommunicationControl!\n");
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if (len > 0)
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fprintf(stderr, "DeviceCommunicationControl: "
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"timeout=%u state=%u password=%s\n",
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(unsigned) timeDuration,
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(unsigned) state, characterstring_value(&password));
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else
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fprintf(stderr, "DeviceCommunicationControl: "
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"Unable to decode request!\n");
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// prepare a reply
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datalink_get_my_address(&my_address);
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// encode the NPDU portion of the packet
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pdu_len = npdu_encode_apdu(&Handler_Transmit_Buffer[0], src, &my_address, false, // true for confirmed messages
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MESSAGE_PRIORITY_NORMAL);
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// bad decoding or something we didn't understand - send an abort
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if (len == -1) {
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pdu_len += abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
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service_data->invoke_id, ABORT_REASON_OTHER);
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fprintf(stderr, "DeviceCommunicationControl: "
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"Sending Abort - could not decode.\n");
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} else if (service_data->segmented_message) {
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pdu_len += abort_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
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service_data->invoke_id,
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ABORT_REASON_SEGMENTATION_NOT_SUPPORTED);
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fprintf(stderr, "DeviceCommunicationControl: "
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"Sending Abort - segmented message.\n");
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} else if (state >= MAX_BACNET_COMMUNICATION_ENABLE_DISABLE) {
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pdu_len += reject_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
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service_data->invoke_id, REJECT_REASON_UNDEFINED_ENUMERATION);
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fprintf(stderr, "DeviceCommunicationControl: "
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"Sending Reject - undefined enumeration\n");
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} else {
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if (characterstring_ansi_same(&password, My_Password)) {
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pdu_len += encode_simple_ack(&Handler_Transmit_Buffer[pdu_len],
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service_data->invoke_id,
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SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL);
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fprintf(stderr, "DeviceCommunicationControl: "
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"Sending Simple Ack!\n");
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dcc_set_status_duration(state, timeDuration);
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} else {
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pdu_len +=
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bacerror_encode_apdu(&Handler_Transmit_Buffer[pdu_len],
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service_data->invoke_id,
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SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL,
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ERROR_CLASS_SERVICES, ERROR_CODE_PASSWORD_FAILURE);
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fprintf(stderr,
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"DeviceCommunicationControl: "
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"Sending Error - password failure.\n");
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}
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}
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bytes_sent = datalink_send_pdu(src, // destination address
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&Handler_Transmit_Buffer[0], pdu_len); // number of bytes of data
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if (bytes_sent <= 0)
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fprintf(stderr, "DeviceCommunicationControl: "
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"Failed to send PDU (%s)!\n", strerror(errno));
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return;
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}
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