/************************************************************************** * * Copyright (C) 2006 Steve Karg * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. * *********************************************************************/ /* command line tool that sends a BACnet service, and displays the reply */ #include #include #include #include #include /* for time */ #include #include "bactext.h" #include "iam.h" #include "address.h" #include "config.h" #include "bacdef.h" #include "npdu.h" #include "apdu.h" #include "device.h" #include "net.h" #include "datalink.h" /* some demo stuff needed */ #include "filename.h" #include "handlers.h" #include "client.h" #include "txbuf.h" /* buffer used for receive */ static uint8_t Rx_Buf[MAX_MPDU] = { 0 }; /* global variables used in this file */ static int32_t Target_Object_Instance_Min = 0; static int32_t Target_Object_Instance_Max = BACNET_MAX_INSTANCE; static bool Error_Detected = false; void MyAbortHandler(BACNET_ADDRESS * src, uint8_t invoke_id, uint8_t abort_reason, bool server) { /* FIXME: verify src and invoke id */ (void) src; (void) invoke_id; (void) server; printf("BACnet Abort: %s\r\n", bactext_abort_reason_name(abort_reason)); Error_Detected = true; } void MyRejectHandler(BACNET_ADDRESS * src, uint8_t invoke_id, uint8_t reject_reason) { /* FIXME: verify src and invoke id */ (void) src; (void) invoke_id; printf("BACnet Reject: %s\r\n", bactext_reject_reason_name(reject_reason)); Error_Detected = true; } static void Init_Service_Handlers(void) { /* we need to handle who-is to support dynamic device binding to us */ apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is); /* set the handler for all the services we don't implement It is required to send the proper reject message... */ apdu_set_unrecognized_service_handler_handler (handler_unrecognized_service); /* we must implement read property - it's required! */ apdu_set_confirmed_handler(SERVICE_CONFIRMED_READ_PROPERTY, handler_read_property); /* handle the reply (request) coming back */ apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_I_AM, handler_i_am_add); /* handle any errors coming back */ apdu_set_abort_handler(MyAbortHandler); apdu_set_reject_handler(MyRejectHandler); } static void print_address_cache(void) { int i, j; BACNET_ADDRESS address; uint32_t device_id = 0; unsigned max_apdu = 0; fprintf(stderr, "Device\tMAC\tMaxAPDU\tNet\n"); for (i = 0; i < MAX_ADDRESS_CACHE; i++) { if (address_get_by_index(i, &device_id, &max_apdu, &address)) { fprintf(stderr, "%u\t", device_id); for (j = 0; j < address.mac_len; j++) { fprintf(stderr, "%02X", address.mac[j]); } fprintf(stderr, "\t"); fprintf(stderr, "%hu\t", max_apdu); fprintf(stderr, "%hu\n", address.net); } } } int main(int argc, char *argv[]) { BACNET_ADDRESS src = { 0 }; /* address where message came from */ uint16_t pdu_len = 0; unsigned timeout = 100; /* milliseconds */ time_t elapsed_seconds = 0; time_t last_seconds = 0; time_t current_seconds = 0; time_t timeout_seconds = 0; if (argc < 2) { printf ("Usage: %s device-instance | device-instance-min device-instance-max\r\n" "Send BACnet WhoIs request to devices, and wait for responses.\r\n" "\r\n" "The device-instance can be 0 to %d, or -1 for ALL.\r\n" "The device-instance can also be specified as a range.\r\n", filename_remove_path(argv[0]), BACNET_MAX_INSTANCE); return 0; } /* decode the command line parameters */ if (argc < 3) { Target_Object_Instance_Min = strtol(argv[1], NULL, 0); Target_Object_Instance_Max = Target_Object_Instance_Min; if (Target_Object_Instance_Min > BACNET_MAX_INSTANCE) { fprintf(stderr, "object-instance-min=%u - it must be less than %u\r\n", Target_Object_Instance_Min, BACNET_MAX_INSTANCE + 1); return 1; } } else { Target_Object_Instance_Min = strtol(argv[1], NULL, 0); Target_Object_Instance_Max = strtol(argv[2], NULL, 0); if (Target_Object_Instance_Min > BACNET_MAX_INSTANCE) { fprintf(stderr, "object-instance-min=%u - it must be less than %u\r\n", Target_Object_Instance_Min, BACNET_MAX_INSTANCE + 1); return 1; } if (Target_Object_Instance_Max > BACNET_MAX_INSTANCE) { fprintf(stderr, "object-instance-max=%u - it must be less than %u\r\n", Target_Object_Instance_Max, BACNET_MAX_INSTANCE + 1); return 1; } } /* setup my info */ Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE); Init_Service_Handlers(); if (!datalink_init(getenv("BACNET_IFACE"))) return 1; /* configure the timeout values */ last_seconds = time(NULL); timeout_seconds = Device_APDU_Timeout() / 1000; /* send the request */ Send_WhoIs(Target_Object_Instance_Min, Target_Object_Instance_Max); /* loop forever */ for (;;) { /* increment timer - exit if timed out */ current_seconds = time(NULL); /* returns 0 bytes on timeout */ pdu_len = datalink_receive(&src, &Rx_Buf[0], MAX_MPDU, timeout); /* process */ if (pdu_len) { npdu_handler(&src, &Rx_Buf[0], pdu_len); } if (Error_Detected) break; /* increment timer - exit if timed out */ elapsed_seconds += (current_seconds - last_seconds); if (elapsed_seconds > timeout_seconds) break; /* keep track of time for next check */ last_seconds = current_seconds; } print_address_cache(); return 0; }