/*####COPYRIGHTBEGIN#### ------------------------------------------- Copyright (C) 2006 Steve Karg This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: The Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA. As a special exception, if other files instantiate templates or use macros or inline functions from this file, or you compile this file and link it with other works to produce a work based on this file, this file does not by itself cause the resulting work to be covered by the GNU General Public License. However the source code for this file must still be made available in accordance with section (3) of the GNU General Public License. This exception does not invalidate any other reasons why a work based on this file might be covered by the GNU General Public License. ------------------------------------------- ####COPYRIGHTEND####*/ #include #include "bacenum.h" #include "bacdcode.h" #include "bacdef.h" #include "ihave.h" /** @file ihave.c Encode/Decode I-Have service */ int ihave_encode_apdu( uint8_t * apdu, BACNET_I_HAVE_DATA * data) { int len = 0; /* length of each encoding */ int apdu_len = 0; /* total length of the apdu, return value */ if (apdu && data) { apdu[0] = PDU_TYPE_UNCONFIRMED_SERVICE_REQUEST; apdu[1] = SERVICE_UNCONFIRMED_I_HAVE; apdu_len = 2; /* deviceIdentifier */ len = encode_application_object_id(&apdu[apdu_len], (int) data->device_id.type, data->device_id.instance); apdu_len += len; /* objectIdentifier */ len = encode_application_object_id(&apdu[apdu_len], (int) data->object_id.type, data->object_id.instance); apdu_len += len; /* objectName */ len = encode_application_character_string(&apdu[apdu_len], &data->object_name); apdu_len += len; } return apdu_len; } #if BACNET_SVC_I_HAVE_A /* decode the service request only */ int ihave_decode_service_request( uint8_t * apdu, unsigned apdu_len, BACNET_I_HAVE_DATA * data) { int len = 0; uint8_t tag_number = 0; uint32_t len_value = 0; uint16_t decoded_type = 0; /* for decoding */ if (apdu_len && data) { /* deviceIdentifier */ len += decode_tag_number_and_value(&apdu[len], &tag_number, &len_value); if (tag_number == BACNET_APPLICATION_TAG_OBJECT_ID) { len += decode_object_id(&apdu[len], &decoded_type, &data->device_id.instance); data->device_id.type = decoded_type; } else return -1; /* objectIdentifier */ len += decode_tag_number_and_value(&apdu[len], &tag_number, &len_value); if (tag_number == BACNET_APPLICATION_TAG_OBJECT_ID) { len += decode_object_id(&apdu[len], &decoded_type, &data->object_id.instance); data->object_id.type = decoded_type; } else return -1; /* objectName */ len += decode_tag_number_and_value(&apdu[len], &tag_number, &len_value); if (tag_number == BACNET_APPLICATION_TAG_CHARACTER_STRING) { len += decode_character_string(&apdu[len], len_value, &data->object_name); } else return -1; } else return -1; return len; } int ihave_decode_apdu( uint8_t * apdu, unsigned apdu_len, BACNET_I_HAVE_DATA * data) { int len = 0; if (!apdu) return -1; /* optional checking - most likely was already done prior to this call */ if (apdu[0] != PDU_TYPE_UNCONFIRMED_SERVICE_REQUEST) return -1; if (apdu[1] != SERVICE_UNCONFIRMED_I_HAVE) return -1; len = ihave_decode_service_request(&apdu[2], apdu_len - 2, data); return len; } #endif #ifdef TEST #include #include #include "ctest.h" void testIHaveData( Test * pTest, BACNET_I_HAVE_DATA * data) { uint8_t apdu[480] = { 0 }; int len = 0; int apdu_len = 0; BACNET_I_HAVE_DATA test_data; len = ihave_encode_apdu(&apdu[0], data); ct_test(pTest, len != 0); apdu_len = len; len = ihave_decode_apdu(&apdu[0], apdu_len, &test_data); ct_test(pTest, len != -1); ct_test(pTest, test_data.device_id.type == data->device_id.type); ct_test(pTest, test_data.device_id.instance == data->device_id.instance); ct_test(pTest, test_data.object_id.type == data->object_id.type); ct_test(pTest, test_data.object_id.instance == data->object_id.instance); ct_test(pTest, characterstring_same(&test_data.object_name, &data->object_name)); } void testIHave( Test * pTest) { BACNET_I_HAVE_DATA data; characterstring_init_ansi(&data.object_name, "Patricia - my love!"); data.device_id.type = OBJECT_DEVICE; for (data.device_id.instance = 1; data.device_id.instance <= BACNET_MAX_INSTANCE; data.device_id.instance <<= 1) { for (data.object_id.type = OBJECT_ANALOG_INPUT; data.object_id.type < MAX_BACNET_OBJECT_TYPE; data.object_id.type++) { for (data.object_id.instance = 1; data.object_id.instance <= BACNET_MAX_INSTANCE; data.object_id.instance <<= 1) { testIHaveData(pTest, &data); } } } } #ifdef TEST_I_HAVE int main( void) { Test *pTest; bool rc; pTest = ct_create("BACnet I-Have", NULL); /* individual tests */ rc = ct_addTestFunction(pTest, testIHave); assert(rc); ct_setStream(pTest, stdout); ct_run(pTest); (void) ct_report(pTest); ct_destroy(pTest); return 0; } #endif /* TEST_WHOIS */ #endif /* TEST */