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created to support Write Property Service

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skarg
2005-04-10 12:02:26 +00:00
parent 55ab2a2a64
commit 3ebaedbd39
3 changed files with 367 additions and 0 deletions
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bacnet-stack/wp.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 "device.h"
#include "rp.h"
// encode service
int wp_encode_apdu(
uint8_t *apdu,
uint8_t invoke_id,
BACNET_WRITE_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, Device_Max_APDU_Length_Accepted());
apdu[2] = invoke_id;
apdu[3] = SERVICE_CONFIRMED_WRITE_PROPERTY; // service choice
apdu_len = 4;
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);
/* optional array index; ALL is -1 which is assumed when missing */
if (data->array_index != BACNET_ARRAY_ALL)
apdu_len += encode_context_unsigned(&apdu[apdu_len], 2,
array_index);
// propertyValue
apdu_len += encode_opening_tag(&apdu[apdu_len], 3);
for (len = 0; len < data->property_value_len; len++)
{
apdu[apdu_len++] = data->property_value[len];
}
apdu_len += encode_closing_tag(&apdu[apdu_len], 3);
// optional priority - 0 if not set, 1..16 if set
if (data->priority)
apdu_len += = encode_context_unsigned(&apdu[apdu_len], 4,
data->priority);
}
return apdu_len;
}
// decode the service request only
int wp_decode_service_request(
uint8_t *apdu,
unsigned apdu_len,
BACNET_WRITE_PROPERTY_DATA *data)
{
int len = 0;
int tag_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 unsigned_value = 0;
// 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 = 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 = property;
// Tag 2: Optional Array Index
// note: decode without incrementing len so we can check for opening tag
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,
&data->array_index);
}
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 data here
data->property_value = &apdu[len];
// get the length of the property data
len += decode_tag_number_and_value(&apdu[len],
&tag_number, &len_value_type);
data->property_value_len = len_value_type;
// FIXME: is this the length, value or type?
// FIXME: If not len, don't increment
len += len_value_type;
}
else
return -1;
// Tag 4: optional Priority
if (len < apdu_len)
{
len += decode_tag_number_and_value(&apdu[len],&tag_number,
&len_value_type);
if (tag_number == 4)
{
len += decode_unsigned(&apdu[len], len_value_type,
&unsigned_value);
data->priority = (uint8_t)unsigned_value;
}
}
}
return len;
}
int wp_decode_apdu(
uint8_t *apdu,
unsigned apdu_len,
uint8_t *invoke_id,
BACNET_WRITE_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_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_WRITE_PROPERTY)
return -1;
offset = 4;
if (apdu_len > offset)
{
len = wp_decode_service_request(
&apdu[offset],
apdu_len - offset,
data);
}
return len;
}
#ifdef TEST
#include <assert.h>
#include <string.h>
#include "ctest.h"
void testWriteProperty(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_OBJECT_TYPE object_type = OBJECT_CALENDAR;
BACNET_OBJECT_TYPE test_object_type = 0;
uint32_t object_instance = 1;
uint32_t test_object_instance = 0;
BACNET_PROPERTY_ID object_property = PROP_ARCHIVE;
BACNET_PROPERTY_ID test_object_property = 0;
int32_t array_index = 2;
int32_t test_array_index = 0;
len = wp_encode_apdu(
&apdu[0],
invoke_id,
object_type,
object_instance,
object_property,
array_index);
ct_test(pTest, len != 0);
apdu_len = len;
len = wp_decode_apdu(
&apdu[0],
apdu_len,
&test_invoke_id,
&test_object_type,
&test_object_instance,
&test_object_property,
&test_array_index);
ct_test(pTest, len != -1);
ct_test(pTest, test_object_type == object_type);
ct_test(pTest, test_object_instance == object_instance);
ct_test(pTest, test_object_property == object_property);
ct_test(pTest, test_array_index == array_index);
return;
}
#ifdef TEST_WRITE_PROPERTY
int main(void)
{
Test *pTest;
bool rc;
pTest = ct_create("BACnet WriteProperty", NULL);
/* individual tests */
rc = ct_addTestFunction(pTest, testWriteProperty);
assert(rc);
rc = ct_addTestFunction(pTest, testWritePropertyAck);
assert(rc);
ct_setStream(pTest, stdout);
ct_run(pTest);
(void) ct_report(pTest);
ct_destroy(pTest);
return 0;
}
#endif /* TEST_WRITE_PROPERTY */
#endif /* TEST */
bacnet-stack/wp.h
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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####*/
#ifndef WRITEPROPERTY_H
#define WRITEPROPERTY_H
#include <stdint.h>
#include <stdbool.h>
typedef struct BACnet_Write_Property_Data
{
BACNET_OBJECT_TYPE object_type;
uint32_t object_instance;
BACNET_PROPERTY_ID object_property;
int32_t array_index; // use BACNET_ARRAY_ALL when not setting
uint8_t *property_value;
int property_value_len;
uint8_t priority; // use 0 if not setting the priority
} BACNET_WRITE_PROPERTY_DATA;
// encode service
int wp_encode_apdu(
uint8_t *apdu,
uint8_t invoke_id,
BACNET_WRITE_PROPERTY_DATA *data);
// decode the service request only
int wp_decode_service_request(
uint8_t *apdu,
unsigned apdu_len,
BACNET_WRITE_PROPERTY_DATA *data);
int wp_decode_apdu(
uint8_t *apdu,
unsigned apdu_len,
uint8_t *invoke_id,
BACNET_WRITE_PROPERTY_DATA *data);
#ifdef TEST
#include "ctest.h"
void test_ReadProperty(Test * pTest);
void test_ReadPropertyAck(Test * pTest);
#endif
#endif
bacnet-stack/wp.mak
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#Makefile to build test case
CC = gcc
BASEDIR = .
#CFLAGS = -Wall -I.
# -g for debugging with gdb
#CFLAGS = -Wall -I. -g
CFLAGS = -Wall -I. -Itest -DTEST -DTEST_WRITE_PROPERTY -g
SRCS = bacdcode.c \
bigend.c \
device.c \
wp.c \
test/ctest.c
OBJS = ${SRCS:.c=.o}
TARGET = writeproperty
all: ${TARGET}
${TARGET}: ${OBJS}
${CC} -o $@ ${OBJS}
.c.o:
${CC} -c ${CFLAGS} $*.c -o $@
depend:
rm -f .depend
${CC} -MM ${CFLAGS} *.c >> .depend
clean:
rm -rf core ${TARGET} $(OBJS) *.bak *.1 *.ini
include: .depend