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skarg
2007-10-14 02:08:22 +00:00
parent 48b07fa52d
commit 11ac494f7e
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bacnet-stack/src/readprop/rp_test.c
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/*####COPYRIGHTBEGIN####
-------------------------------------------
Copyright (C) 2005 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 <stdint.h>
#include "bacenum.h"
#include "bacdcode.h"
#include "bacdef.h"
#include "rp.h"
/* encode service */
int rp_encode_apdu(uint8_t * apdu,
uint8_t invoke_id, BACNET_READ_PROPERTY_DATA * data)
{
int len = 0; /* length of each encoding */
int apdu_len = 0; /* total length of the apdu, return value */
if (apdu) {
apdu[0] = PDU_TYPE_CONFIRMED_SERVICE_REQUEST;
apdu[1] = encode_max_segs_max_apdu(0, MAX_APDU);
apdu[2] = invoke_id;
apdu[3] = SERVICE_CONFIRMED_READ_PROPERTY; /* service choice */
apdu_len = 4;
len = encode_context_object_id(&apdu[apdu_len], 0,
data->object_type, data->object_instance);
apdu_len += len;
len = encode_context_enumerated(&apdu[apdu_len], 1,
data->object_property);
apdu_len += len;
/* optional array index */
if (data->array_index != BACNET_ARRAY_ALL) {
len = encode_context_unsigned(&apdu[apdu_len], 2,
data->array_index);
apdu_len += len;
}
}
return apdu_len;
}
/* decode the service request only */
int rp_decode_service_request(uint8_t * apdu,
unsigned apdu_len, BACNET_READ_PROPERTY_DATA * data)
{
unsigned len = 0;
uint8_t tag_number = 0;
uint32_t len_value_type = 0;
int type = 0; /* for decoding */
int property = 0; /* for decoding */
uint32_t array_value = 0; /* for decoding */
/* check for value pointers */
if (apdu_len && data) {
/* Tag 0: Object ID */
if (!decode_is_context_tag(&apdu[len++], 0))
return -1;
len += decode_object_id(&apdu[len], &type, &data->object_instance);
data->object_type = (BACNET_OBJECT_TYPE)type;
/* Tag 1: Property ID */
len += decode_tag_number_and_value(&apdu[len],
&tag_number, &len_value_type);
if (tag_number != 1)
return -1;
len += decode_enumerated(&apdu[len], len_value_type, &property);
data->object_property = (BACNET_PROPERTY_ID)property;
/* Tag 2: Optional Array Index */
if (len < apdu_len) {
len += decode_tag_number_and_value(&apdu[len], &tag_number,
&len_value_type);
if (tag_number == 2) {
len += decode_unsigned(&apdu[len], len_value_type,
&array_value);
data->array_index = array_value;
} else
data->array_index = BACNET_ARRAY_ALL;
} else
data->array_index = BACNET_ARRAY_ALL;
}
return (int) len;
}
int rp_ack_encode_apdu(uint8_t * apdu,
uint8_t invoke_id, BACNET_READ_PROPERTY_DATA * data)
{
int len = 0; /* length of each encoding */
int apdu_len = 0; /* total length of the apdu, return value */
if (apdu) {
apdu[0] = PDU_TYPE_COMPLEX_ACK; /* complex ACK service */
apdu[1] = invoke_id; /* original invoke id from request */
apdu[2] = SERVICE_CONFIRMED_READ_PROPERTY; /* service choice */
apdu_len = 3;
/* service ack follows */
apdu_len += encode_context_object_id(&apdu[apdu_len], 0,
data->object_type, data->object_instance);
apdu_len += encode_context_enumerated(&apdu[apdu_len], 1,
data->object_property);
/* context 2 array index is optional */
if (data->array_index != BACNET_ARRAY_ALL) {
apdu_len += encode_context_unsigned(&apdu[apdu_len], 2,
data->array_index);
}
/* propertyValue */
apdu_len += encode_opening_tag(&apdu[apdu_len], 3);
for (len = 0; len < data->application_data_len; len++) {
apdu[apdu_len++] = data->application_data[len];
}
apdu_len += encode_closing_tag(&apdu[apdu_len], 3);
}
return apdu_len;
}
int rp_ack_decode_service_request(uint8_t * apdu, int apdu_len, /* total length of the apdu */
BACNET_READ_PROPERTY_DATA * data)
{
uint8_t tag_number = 0;
uint32_t len_value_type = 0;
int tag_len = 0; /* length of tag decode */
int len = 0; /* total length of decodes */
int object = 0, property = 0; /* for decoding */
uint32_t array_value = 0; /* for decoding */
/* FIXME: check apdu_len against the len during decode */
/* Tag 0: Object ID */
if (!decode_is_context_tag(&apdu[0], 0))
return -1;
len = 1;
len += decode_object_id(&apdu[len], &object, &data->object_instance);
data->object_type = (BACNET_OBJECT_TYPE)object;
/* Tag 1: Property ID */
len += decode_tag_number_and_value(&apdu[len],
&tag_number, &len_value_type);
if (tag_number != 1)
return -1;
len += decode_enumerated(&apdu[len], len_value_type, &property);
data->object_property = (BACNET_PROPERTY_ID)property;
/* Tag 2: Optional Array Index */
tag_len = decode_tag_number_and_value(&apdu[len],
&tag_number, &len_value_type);
if (tag_number == 2) {
len += tag_len;
len += decode_unsigned(&apdu[len], len_value_type, &array_value);
data->array_index = array_value;
} else
data->array_index = BACNET_ARRAY_ALL;
/* Tag 3: opening context tag */
if (decode_is_opening_tag_number(&apdu[len], 3)) {
/* a tag number of 3 is not extended so only one octet */
len++;
/* don't decode the application tag number or its data here */
data->application_data = &apdu[len];
data->application_data_len = apdu_len - len - 1 /*closing tag */ ;
} else
return -1;
return len;
}
#ifdef TEST
#include <assert.h>
#include <string.h>
#include "ctest.h"
int rp_decode_apdu(uint8_t * apdu,
unsigned apdu_len,
uint8_t * invoke_id, BACNET_READ_PROPERTY_DATA * data)
{
int len = 0;
unsigned offset = 0;
if (!apdu)
return -1;
/* optional checking - most likely was already done prior to this call */
if (apdu[0] != PDU_TYPE_CONFIRMED_SERVICE_REQUEST)
return -1;
/* apdu[1] = encode_max_segs_max_apdu(0, Device_Max_APDU_Length_Accepted()); */
*invoke_id = apdu[2]; /* invoke id - filled in by net layer */
if (apdu[3] != SERVICE_CONFIRMED_READ_PROPERTY)
return -1;
offset = 4;
if (apdu_len > offset) {
len = rp_decode_service_request(&apdu[offset],
apdu_len - offset, data);
}
return len;
}
int rp_ack_decode_apdu(uint8_t * apdu, int apdu_len, /* total length of the apdu */
uint8_t * invoke_id, BACNET_READ_PROPERTY_DATA * data)
{
int len = 0;
int offset = 0;
if (!apdu)
return -1;
/* optional checking - most likely was already done prior to this call */
if (apdu[0] != PDU_TYPE_COMPLEX_ACK)
return -1;
*invoke_id = apdu[1];
if (apdu[2] != SERVICE_CONFIRMED_READ_PROPERTY)
return -1;
offset = 3;
if (apdu_len > offset) {
len = rp_ack_decode_service_request(&apdu[offset],
apdu_len - offset, data);
}
return len;
}
void testReadPropertyAck(Test * pTest)
{
uint8_t apdu[480] = { 0 };
uint8_t apdu2[480] = { 0 };
int len = 0;
int apdu_len = 0;
uint8_t invoke_id = 1;
uint8_t test_invoke_id = 0;
BACNET_READ_PROPERTY_DATA data;
BACNET_READ_PROPERTY_DATA test_data;
BACNET_OBJECT_TYPE object_type = OBJECT_DEVICE;
uint32_t object_instance = 0;
int object = 0;
data.object_type = OBJECT_DEVICE;
data.object_instance = 1;
data.object_property = PROP_OBJECT_IDENTIFIER;
data.array_index = BACNET_ARRAY_ALL;
data.application_data_len = encode_bacnet_object_id(&apdu2[0],
data.object_type, data.object_instance);
data.application_data = &apdu2[0];
len = rp_ack_encode_apdu(&apdu[0], invoke_id, &data);
ct_test(pTest, len != 0);
ct_test(pTest, len != -1);
apdu_len = len;
len = rp_ack_decode_apdu(&apdu[0], apdu_len, /* total length of the apdu */
&test_invoke_id, &test_data);
ct_test(pTest, len != -1);
ct_test(pTest, test_invoke_id == invoke_id);
ct_test(pTest, test_data.object_type == data.object_type);
ct_test(pTest, test_data.object_instance == data.object_instance);
ct_test(pTest, test_data.object_property == data.object_property);
ct_test(pTest, test_data.array_index == data.array_index);
ct_test(pTest,
test_data.application_data_len == data.application_data_len);
/* since object property == object_id, decode the application data using
the appropriate decode function */
len = decode_object_id(test_data.application_data,
&object, &object_instance);
object_type = object;
ct_test(pTest, object_type == data.object_type);
ct_test(pTest, object_instance == data.object_instance);
}
void testReadProperty(Test * pTest)
{
uint8_t apdu[480] = { 0 };
int len = 0;
int apdu_len = 0;
uint8_t invoke_id = 128;
uint8_t test_invoke_id = 0;
BACNET_READ_PROPERTY_DATA data;
BACNET_READ_PROPERTY_DATA test_data;
data.object_type = OBJECT_DEVICE;
data.object_instance = 1;
data.object_property = PROP_OBJECT_IDENTIFIER;
data.array_index = BACNET_ARRAY_ALL;
len = rp_encode_apdu(&apdu[0], invoke_id, &data);
ct_test(pTest, len != 0);
apdu_len = len;
len = rp_decode_apdu(&apdu[0], apdu_len, &test_invoke_id, &test_data);
ct_test(pTest, len != -1);
ct_test(pTest, test_data.object_type == data.object_type);
ct_test(pTest, test_data.object_instance == data.object_instance);
ct_test(pTest, test_data.object_property == data.object_property);
ct_test(pTest, test_data.array_index == data.array_index);
return;
}
#ifdef TEST_READ_PROPERTY
int main(void)
{
Test *pTest;
bool rc;
pTest = ct_create("BACnet ReadProperty", NULL);
/* individual tests */
rc = ct_addTestFunction(pTest, testReadProperty);
assert(rc);
rc = ct_addTestFunction(pTest, testReadPropertyAck);
assert(rc);
ct_setStream(pTest, stdout);
ct_run(pTest);
(void) ct_report(pTest);
ct_destroy(pTest);
return 0;
}
#endif /* TEST_READ_PROPERTY */
#endif /* TEST */