skarg
275 lines
8.0 KiB
C
275 lines
8.0 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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/* READPROP: command line tool that reads a property from a BACnet device. */
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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 <stdlib.h>
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#include <time.h> /* for time */
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#include <errno.h>
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#include "bactext.h"
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#include "iam.h"
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#include "arf.h"
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#include "tsm.h"
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#include "address.h"
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#include "config.h"
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#include "bacdef.h"
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#include "npdu.h"
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#include "apdu.h"
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#include "device.h"
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#include "net.h"
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#include "datalink.h"
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#include "whois.h"
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/* some demo stuff needed */
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#include "filename.h"
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#include "handlers.h"
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#include "client.h"
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#include "txbuf.h"
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// buffer used for receive
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static uint8_t Rx_Buf[MAX_MPDU] = {0};
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/* global variables used in this file */
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static uint32_t Target_Device_Object_Instance = BACNET_MAX_INSTANCE;
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static uint32_t Target_Object_Instance = BACNET_MAX_INSTANCE;
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static BACNET_OBJECT_TYPE Target_Object_Type = OBJECT_ANALOG_INPUT;
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static BACNET_PROPERTY_ID Target_Object_Property = PROP_ACKED_TRANSITIONS;
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static int32_t Target_Object_Index = BACNET_ARRAY_ALL;
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static BACNET_ADDRESS Target_Address;
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static bool Error_Detected = false;
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static void MyErrorHandler(
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BACNET_ADDRESS *src,
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uint8_t invoke_id,
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BACNET_ERROR_CLASS error_class,
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BACNET_ERROR_CODE error_code)
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{
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/* FIXME: verify src and invoke id */
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(void)src;
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(void)invoke_id;
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printf("\r\nBACnet Error!\r\n");
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printf("Error Class: %s\r\n",
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bactext_error_class_name(error_class));
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printf("Error Code: %s\r\n",
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bactext_error_code_name(error_code));
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Error_Detected = true;
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}
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void MyAbortHandler(
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BACNET_ADDRESS *src,
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uint8_t invoke_id,
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uint8_t abort_reason)
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{
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/* FIXME: verify src and invoke id */
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(void)src;
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(void)invoke_id;
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printf("\r\nBACnet Abort!\r\n");
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printf("Abort Reason: %s\r\n",
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bactext_abort_reason_name(abort_reason));
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Error_Detected = true;
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}
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void MyRejectHandler(
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BACNET_ADDRESS *src,
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uint8_t invoke_id,
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uint8_t reject_reason)
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{
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/* FIXME: verify src and invoke id */
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(void)src;
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(void)invoke_id;
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printf("\r\nBACnet Reject!\r\n");
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printf("Reject Reason: %s\r\n",
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bactext_reject_reason_name(reject_reason));
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Error_Detected = true;
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}
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static void Init_Service_Handlers(void)
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{
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/* we need to handle who-is
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to support dynamic device binding to us */
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apdu_set_unconfirmed_handler(
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SERVICE_UNCONFIRMED_WHO_IS,
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handler_who_is);
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/* handle i-am to support binding to other devices */
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apdu_set_unconfirmed_handler(
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SERVICE_UNCONFIRMED_I_AM,
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handler_i_am_bind);
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/* set the handler for all the services we don't implement
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It is required to send the proper reject message... */
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apdu_set_unrecognized_service_handler_handler(
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handler_unrecognized_service);
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/* we must implement read property - it's required! */
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apdu_set_confirmed_handler(
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SERVICE_CONFIRMED_READ_PROPERTY,
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handler_read_property);
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/* handle the data coming back from confirmed requests */
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apdu_set_confirmed_ack_handler(
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SERVICE_CONFIRMED_READ_PROPERTY,
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handler_read_property_ack);
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/* handle any errors coming back */
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apdu_set_error_handler(
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SERVICE_CONFIRMED_READ_PROPERTY,
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MyErrorHandler);
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apdu_set_abort_handler(
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MyAbortHandler);
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apdu_set_reject_handler(
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MyRejectHandler);
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}
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int main(int argc, char *argv[])
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{
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BACNET_ADDRESS src = {0}; // address where message came from
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uint16_t pdu_len = 0;
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unsigned timeout = 100; // milliseconds
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unsigned max_apdu = 0;
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time_t elapsed_seconds = 0;
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time_t last_seconds = 0;
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time_t current_seconds = 0;
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time_t timeout_seconds = 0;
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uint8_t invoke_id = 0;
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bool found = false;
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if (argc < 5)
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{
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printf("%s device-instance object-type object-instance property [index]\r\n",
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filename_remove_path(argv[0]));
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return 0;
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}
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/* decode the command line parameters */
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Target_Device_Object_Instance = strtol(argv[1],NULL,0);
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Target_Object_Type = strtol(argv[2],NULL,0);
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Target_Object_Instance = strtol(argv[3],NULL,0);
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Target_Object_Property = strtol(argv[4],NULL,0);
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if (argc > 5)
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Target_Object_Index = strtol(argv[5],NULL,0);
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if (Target_Device_Object_Instance >= BACNET_MAX_INSTANCE)
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{
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fprintf(stderr,"device-instance=%u - it must be less than %u\r\n",
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Target_Device_Object_Instance,BACNET_MAX_INSTANCE);
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return 1;
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}
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if (Target_Object_Type > MAX_BACNET_OBJECT_TYPE)
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{
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fprintf(stderr,"object-type=%u - it must be less than %u\r\n",
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Target_Object_Type,MAX_BACNET_OBJECT_TYPE+1);
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return 1;
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}
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if (Target_Object_Instance > BACNET_MAX_INSTANCE)
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{
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fprintf(stderr,"object-instance=%u - it must be less than %u\r\n",
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Target_Object_Instance,BACNET_MAX_INSTANCE+1);
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return 1;
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}
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if (Target_Object_Property > MAX_BACNET_PROPERTY_ID)
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{
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fprintf(stderr,"object-type=%u - it must be less than %u\r\n",
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Target_Object_Property,MAX_BACNET_PROPERTY_ID+1);
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return 1;
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}
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/* setup my info */
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Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE);
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address_init();
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Init_Service_Handlers();
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/* configure standard BACnet/IP port */
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bip_set_interface("eth0"); /* for linux */
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bip_set_port(0xBAC0);
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if (!bip_init())
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return 1;
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/* configure the timeout values */
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last_seconds = time(NULL);
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timeout_seconds = (Device_APDU_Timeout() / 1000) *
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Device_Number_Of_APDU_Retries();
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/* try to bind with the device */
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Send_WhoIs(Target_Device_Object_Instance,Target_Device_Object_Instance);
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/* loop forever */
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for (;;)
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{
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/* increment timer - exit if timed out */
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current_seconds = time(NULL);
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/* returns 0 bytes on timeout */
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pdu_len = bip_receive(
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&src,
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&Rx_Buf[0],
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MAX_MPDU,
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timeout);
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/* process */
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if (pdu_len)
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{
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npdu_handler(
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&src,
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&Rx_Buf[0],
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pdu_len);
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}
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/* at least one second has passed */
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if (current_seconds != last_seconds)
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tsm_timer_milliseconds(((current_seconds - last_seconds) * 1000));
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if (Error_Detected)
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break;
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if (I_Am_Request)
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{
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I_Am_Request = false;
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iam_send(&Handler_Transmit_Buffer[0]);
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}
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else
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{
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/* wait until the device is bound, or timeout and quit */
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found = address_bind_request(
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Target_Device_Object_Instance,
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&max_apdu,
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&Target_Address);
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if (found)
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{
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if (invoke_id == 0)
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{
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invoke_id = Send_Read_Property_Request(
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Target_Device_Object_Instance,
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Target_Object_Type,
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Target_Object_Instance,
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Target_Object_Property,
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Target_Object_Index);
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}
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else if (tsm_invoke_id_free(invoke_id))
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break;
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}
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else
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{
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/* increment timer - exit if timed out */
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elapsed_seconds += (current_seconds - last_seconds);
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if (elapsed_seconds > timeout_seconds)
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break;
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}
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}
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/* keep track of time for next check */
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last_seconds = current_seconds;
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}
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return 0;
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}
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