/************************************************************************** * * 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 demo for BACnet stack */ #include #include #include #include #include /* for time */ #include #include "bactext.h" #include "iam.h" #include "arf.h" #include "tsm.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" #include "whois.h" #include "dcc.h" /* some demo stuff needed */ #include "filename.h" #include "handlers.h" #include "client.h" #include "txbuf.h" #include "dlenv.h" /* buffer used for receive */ static uint8_t Rx_Buf[MAX_MPDU] = { 0 }; /* global variables used in this file */ static uint32_t Target_Device_Object_Instance = BACNET_MAX_INSTANCE; static BACNET_ADDRESS Target_Address; static uint16_t Communication_Timeout_Minutes = 0; static BACNET_COMMUNICATION_ENABLE_DISABLE Communication_State = COMMUNICATION_ENABLE; static char *Communication_Password = NULL; static bool Error_Detected = false; static void MyErrorHandler( BACNET_ADDRESS * src, uint8_t invoke_id, BACNET_ERROR_CLASS error_class, BACNET_ERROR_CODE error_code) { /* FIXME: verify src and invoke id */ (void) src; (void) invoke_id; printf("BACnet Error: %s: %s\r\n", bactext_error_class_name(error_class), bactext_error_code_name(error_code)); Error_Detected = true; } 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; } void MyDeviceCommunicationControlSimpleAckHandler( BACNET_ADDRESS * src, uint8_t invoke_id) { (void) src; (void) invoke_id; printf("DeviceCommunicationControl Acknowledged!\r\n"); } static void Init_Service_Handlers( void) { Device_Init(NULL); /* we need to handle who-is to support dynamic device binding to us */ apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_WHO_IS, handler_who_is); /* handle i-am to support binding to other devices */ apdu_set_unconfirmed_handler(SERVICE_UNCONFIRMED_I_AM, handler_i_am_bind); /* 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 communication so we can shutup when asked */ apdu_set_confirmed_handler(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL, handler_device_communication_control); /* handle the ack coming back */ apdu_set_confirmed_simple_ack_handler (SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL, MyDeviceCommunicationControlSimpleAckHandler); /* handle any errors coming back */ apdu_set_error_handler(SERVICE_CONFIRMED_DEVICE_COMMUNICATION_CONTROL, MyErrorHandler); apdu_set_abort_handler(MyAbortHandler); apdu_set_reject_handler(MyRejectHandler); } int main( int argc, char *argv[]) { BACNET_ADDRESS src = { 0 }; /* address where message came from */ uint16_t pdu_len = 0; unsigned timeout = 100; /* milliseconds */ unsigned max_apdu = 0; time_t elapsed_seconds = 0; time_t last_seconds = 0; time_t current_seconds = 0; time_t timeout_seconds = 0; uint8_t invoke_id = 0; bool found = false; if (argc < 3) { printf("Usage: %s device-instance state timeout [password]\r\n" "Send BACnet DeviceCommunicationControl service to device.\r\n" "\r\n" "The device-instance can be 0 to %d.\r\n" "Possible state values:\r\n" " 0=enable\r\n" " 1=disable\r\n" " 2=disable-initiation\r\n" "The timeout can be 0 for infinite, or a value in minutes for disable.\r\n" "The optional password is a character string of 1 to 20 characters.\r\n" "Use BACNET_IFACE environment variable for the interface\r\n", filename_remove_path(argv[0]), BACNET_MAX_INSTANCE - 1); return 0; } /* decode the command line parameters */ Target_Device_Object_Instance = strtol(argv[1], NULL, 0); Communication_State = (uint16_t) strtol(argv[2], NULL, 0); Communication_Timeout_Minutes = (uint16_t) strtol(argv[3], NULL, 0); /* optional password */ if (argc > 4) Communication_Password = argv[4]; if (Target_Device_Object_Instance >= BACNET_MAX_INSTANCE) { fprintf(stderr, "device-instance=%u - it must be less than %u\r\n", Target_Device_Object_Instance, BACNET_MAX_INSTANCE); return 1; } /* setup my info */ Device_Set_Object_Instance_Number(BACNET_MAX_INSTANCE); address_init(); Init_Service_Handlers(); dlenv_init(); atexit(datalink_cleanup); /* configure the timeout values */ last_seconds = time(NULL); timeout_seconds = (apdu_timeout() / 1000) * apdu_retries(); /* try to bind with the device */ Send_WhoIs(Target_Device_Object_Instance, Target_Device_Object_Instance); /* 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); } /* at least one second has passed */ if (current_seconds != last_seconds) tsm_timer_milliseconds((uint16_t) ((current_seconds - last_seconds) * 1000)); if (Error_Detected) break; /* wait until the device is bound, or timeout and quit */ found = address_bind_request(Target_Device_Object_Instance, &max_apdu, &Target_Address); if (found) { if (invoke_id == 0) { invoke_id = Send_Device_Communication_Control_Request (Target_Device_Object_Instance, Communication_Timeout_Minutes, Communication_State, Communication_Password); } else if (tsm_invoke_id_free(invoke_id)) break; else if (tsm_invoke_id_failed(invoke_id)) { fprintf(stderr, "\rError: TSM Timeout!\r\n"); tsm_free_invoke_id(invoke_id); /* try again or abort? */ break; } } else { /* increment timer - exit if timed out */ elapsed_seconds += (current_seconds - last_seconds); if (elapsed_seconds > timeout_seconds) { printf("\rError: APDU Timeout!\r\n"); break; } } /* keep track of time for next check */ last_seconds = current_seconds; } return 0; }