skarg
320 lines
9.8 KiB
C
320 lines
9.8 KiB
C
/**************************************************************************
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*
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* Copyright (C) 2008 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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/* command line tool that sends a BACnet service, and displays the reply */
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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 "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 "datalink.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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#if defined(BACDL_MSTP)
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#include "rs485.h"
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#endif
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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 int32_t Target_Router_Network = 0;
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static BACNET_ADDRESS Target_Router_Address;
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static bool Error_Detected = false;
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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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bool server)
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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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(void) server;
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printf("BACnet Abort: %s\r\n", 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("BACnet Reject: %s\r\n", 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(
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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(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is);
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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(SERVICE_CONFIRMED_READ_PROPERTY,
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handler_read_property);
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/* handle the reply (request) coming back */
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apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_I_AM, handler_i_am_add);
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/* handle any errors coming back */
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apdu_set_abort_handler(MyAbortHandler);
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apdu_set_reject_handler(MyRejectHandler);
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}
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static void Init_DataLink(
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void)
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{
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char *pEnv = NULL;
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#if defined(BACDL_BIP) && BBMD_ENABLED
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long bbmd_port = 0xBAC0;
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long bbmd_address = 0;
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long bbmd_timetolive_seconds = 60000;
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#endif
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#if defined(BACDL_ALL)
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pEnv = getenv("BACNET_DATALINK");
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if (pEnv) {
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datalink_set(pEnv));
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} else {
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datalink_set(NULL);
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}
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#endif
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#if defined(BACDL_BIP)
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pEnv = getenv("BACNET_IP_PORT");
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if (pEnv) {
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bip_set_port(strtol(pEnv, NULL, 0));
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} else {
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bip_set_port(0xBAC0);
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}
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#elif defined(BACDL_MSTP)
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pEnv = getenv("BACNET_MAX_INFO_FRAMES");
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if (pEnv) {
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dlmstp_set_max_info_frames(strtol(pEnv, NULL, 0));
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} else {
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dlmstp_set_max_info_frames(1);
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}
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pEnv = getenv("BACNET_MAX_MASTER");
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if (pEnv) {
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dlmstp_set_max_master(strtol(pEnv, NULL, 0));
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} else {
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dlmstp_set_max_master(127);
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}
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pEnv = getenv("BACNET_MSTP_BAUD");
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if (pEnv) {
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RS485_Set_Baud_Rate(strtol(pEnv, NULL, 0));
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} else {
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RS485_Set_Baud_Rate(38400);
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}
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pEnv = getenv("BACNET_MSTP_MAC");
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if (pEnv) {
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dlmstp_set_mac_address(strtol(pEnv, NULL, 0));
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} else {
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dlmstp_set_mac_address(127);
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}
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#endif
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if (!datalink_init(getenv("BACNET_IFACE"))) {
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exit(1);
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}
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#if defined(BACDL_BIP) && BBMD_ENABLED
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pEnv = getenv("BACNET_BBMD_PORT");
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if (pEnv) {
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bbmd_port = strtol(pEnv, NULL, 0);
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if (bbmd_port > 0xFFFF) {
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bbmd_port = 0xBAC0;
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}
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}
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pEnv = getenv("BACNET_BBMD_TIMETOLIVE");
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if (pEnv) {
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bbmd_timetolive_seconds = strtol(pEnv, NULL, 0);
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if (bbmd_timetolive_seconds > 0xFFFF) {
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bbmd_timetolive_seconds = 0xFFFF;
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}
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}
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pEnv = getenv("BACNET_BBMD_ADDRESS");
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if (pEnv) {
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bbmd_address = bip_getaddrbyname(pEnv);
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if (bbmd_address) {
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struct in_addr addr;
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addr.s_addr = bbmd_address;
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printf("WhoIs: Registering with BBMD at %s:%ld for %ld seconds\n",
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inet_ntoa(addr), bbmd_port, bbmd_timetolive_seconds);
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bvlc_register_with_bbmd(bbmd_address, bbmd_port,
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bbmd_timetolive_seconds);
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}
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}
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#endif
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}
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static void address_parse(BACNET_ADDRESS * dst,
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int argc, char *argv[]) {
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int dnet = 0;
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unsigned mac[6];
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int count = 0;
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int index = 0;
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if (argc > 0) {
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count =
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sscanf(argv[0], "%x:%x:%x:%x:%x:%x", &mac[0], &mac[1], &mac[2],
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&mac[3], &mac[4], &mac[5]);
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dst->mac_len = count;
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for (index = 0; index < MAX_MAC_LEN; index++) {
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if (index < count) {
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dst->mac[index] = mac[index];
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} else {
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dst->mac[index] = 0;
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}
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}
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}
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if (argc > 1) {
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count = sscanf(argv[1], "%d", &dnet);
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dst->net = dnet;
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}
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if (dnet) {
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if (argc > 2) {
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count =
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sscanf(argv[2], "%x:%x:%x:%x:%x:%x", &mac[0], &mac[1], &mac[2],
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&mac[3], &mac[4], &mac[5]);
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dst->len = count;
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for (index = 0; index < MAX_MAC_LEN; index++) {
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if (index < count) {
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dst->adr[index] = mac[index];
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} else {
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dst->adr[index] = 0;
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}
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}
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} else {
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fprintf(stderr, "A non-zero DNET requires a DADR.\r\n");
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}
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} else {
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dst->len = 0;
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for (index = 0; index < MAX_MAC_LEN; index++) {
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dst->adr[index] = 0;
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}
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}
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}
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int main(int argc, char *argv[]) {
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BACNET_ADDRESS src = {
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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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time_t total_seconds = 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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if (argc < 2) {
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printf("Usage: %s DNET [MAC]\r\n", filename_remove_path(argv[0]));
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return 0;
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}
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if ((argc > 1) && (strcmp(argv[1], "--help") == 0)) {
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printf("Send BACnet Who-Is-Router-To-Network message to a network.\r\n"
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"\r\n" "DNET:\r\n" "BACnet destination network number 0-65534\r\n"
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"MAC:\r\n" "Optional MAC address of router for unicast message\r\n"
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"Format: xx[:xx:xx:xx:xx:xx] [dnet xx[:xx:xx:xx:xx:xx]]\r\n"
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"Use hexidecimal MAC addresses.\r\n" "\r\n"
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"To send a Who-Is-Router-To-Network request to DNET 86:\r\n"
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"%s 86\r\n"
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"To send a Who-Is-Router-To-Network request to all devices:\r\n"
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"%s -1\r\n", filename_remove_path(argv[0]),
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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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if (argc > 1) {
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Target_Router_Network = strtol(argv[1], NULL, 0);
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if (Target_Router_Network >= 65535) {
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fprintf(stderr, "DNET=%u - it must be less than %u\r\n",
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Target_Router_Network, 65535);
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return 1;
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}
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}
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if (argc > 2) {
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address_parse(&Target_Router_Address, argc - 2, &argv[2]);
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} else {
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datalink_get_broadcast_address(&Target_Router_Address);
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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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Init_Service_Handlers();
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address_init();
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Init_DataLink();
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/* configure the timeout values */
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last_seconds = time(NULL);
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timeout_seconds = apdu_timeout() / 1000;
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/* send the request */
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Send_Who_Is_Router_To_Network(&Target_Router_Address,
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Target_Router_Network);
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/* loop forever */
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for (;;) {
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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 = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout);
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/* process */
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if (pdu_len) {
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npdu_handler(&src, &Rx_Buf[0], pdu_len);
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}
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if (Error_Detected)
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break;
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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) {
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#if defined(BACDL_BIP) && BBMD_ENABLED
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bvlc_maintenance_timer(elapsed_seconds);
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#endif
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}
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total_seconds += elapsed_seconds;
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if (total_seconds > timeout_seconds)
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break;
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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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