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Created BACnet DeviceCommunicationControl service encoding, decoding and unit test.

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skarg
2006-02-10 12:51:05 +00:00
parent 7f2adf1c57
commit 7648d14517
3 changed files with 369 additions and 0 deletions
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bacnet-stack/dcc.c
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/*####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 <stdint.h>
#include "bacenum.h"
#include "bacdcode.h"
#include "bacdef.h"
#include "dcc.h"
/* encode service */
int dcc_encode_apdu(
uint8_t *apdu,
uint8_t invoke_id,
uint16_t timeDuration, /* 0=optional */
BACNET_COMMUNICATION_ENABLE_DISABLE enable_disable,
BACNET_CHARACTER_STRING *password) /* NULL=optional */
{
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_REINITIALIZE_DEVICE;
apdu_len = 4;
/* optional timeDuration */
if (timeDuration)
{
len = encode_context_unsigned(&apdu[apdu_len], 0, timeDuration);
apdu_len += len;
}
/* enable disable */
len = encode_context_enumerated(&apdu[apdu_len], 1, enable_disable);
apdu_len += len;
/* optional password */
if (password)
{
/* FIXME: must be at least 1 character, limited to 20 characters */
len = encode_context_character_string(&apdu[apdu_len], 2, password);
apdu_len += len;
}
}
return apdu_len;
}
/* decode the service request only */
int dcc_decode_service_request(
uint8_t *apdu,
unsigned apdu_len,
uint16_t *timeDuration,
BACNET_COMMUNICATION_ENABLE_DISABLE *enable_disable,
BACNET_CHARACTER_STRING *password)
{
unsigned len = 0;
uint8_t tag_number = 0;
uint32_t len_value_type = 0;
int value = 0;
uint32_t value32 = 0;
/* check for value pointers */
if (apdu_len)
{
/* Tag 0: timeDuration --optional-- */
if (decode_is_context_tag(&apdu[len], 0))
{
len += decode_tag_number_and_value(&apdu[len], &tag_number,
&len_value_type);
len += decode_unsigned(&apdu[len], len_value_type, &value32);
if (timeDuration)
*timeDuration = value32;
}
else if (timeDuration)
*timeDuration = 0;
/* Tag 1: enable_disable */
if (!decode_is_context_tag(&apdu[len], 1))
return -1;
len += decode_tag_number_and_value(&apdu[len],
&tag_number, &len_value_type);
len += decode_enumerated(&apdu[len], len_value_type, &value);
if (enable_disable)
*enable_disable = value;
/* Tag 2: password --optional-- */
if (len < apdu_len)
{
if (!decode_is_context_tag(&apdu[len], 2))
return -1;
len += decode_tag_number_and_value(&apdu[len],
&tag_number, &len_value_type);
len += decode_character_string(&apdu[len], len_value_type, password);
}
else if (password)
characterstring_init_ansi(password,NULL);
}
return (int)len;
}
int dcc_decode_apdu(
uint8_t *apdu,
unsigned apdu_len,
uint8_t *invoke_id,
uint16_t *timeDuration,
BACNET_COMMUNICATION_ENABLE_DISABLE *enable_disable,
BACNET_CHARACTER_STRING *password)
{
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_REINITIALIZE_DEVICE)
return -1;
offset = 4;
if (apdu_len > offset)
{
len = dcc_decode_service_request(
&apdu[offset],
apdu_len - offset,
timeDuration,
enable_disable,
password);
}
return len;
}
#ifdef TEST
#include <assert.h>
#include <string.h>
#include "ctest.h"
void test_DeviceCommunicationControlData(
Test * pTest,
uint8_t invoke_id,
uint16_t timeDuration,
BACNET_COMMUNICATION_ENABLE_DISABLE enable_disable,
BACNET_CHARACTER_STRING *password)
{
uint8_t apdu[480] = {0};
int len = 0;
int apdu_len = 0;
uint8_t test_invoke_id = 0;
uint16_t test_timeDuration = 0;
BACNET_COMMUNICATION_ENABLE_DISABLE test_enable_disable;
BACNET_CHARACTER_STRING test_password;
len = dcc_encode_apdu(
&apdu[0],
invoke_id,
timeDuration,
enable_disable,
password);
ct_test(pTest, len != 0);
apdu_len = len;
len = dcc_decode_apdu(
&apdu[0],
apdu_len,
&test_invoke_id,
&test_timeDuration,
&test_enable_disable,
&test_password);
ct_test(pTest, len != -1);
ct_test(pTest, test_invoke_id == invoke_id);
ct_test(pTest, test_timeDuration == timeDuration);
ct_test(pTest, test_enable_disable == enable_disable);
ct_test(pTest, characterstring_same(&test_password,password));
}
void test_DeviceCommunicationControl(Test * pTest)
{
uint8_t invoke_id = 128;
uint16_t timeDuration = 0;
BACNET_COMMUNICATION_ENABLE_DISABLE enable_disable;
BACNET_CHARACTER_STRING password;
timeDuration = 0;
enable_disable = COMMUNICATION_DISABLE_INITIATION;
characterstring_init_ansi(&password,"John 3:16");
test_DeviceCommunicationControlData(
pTest,
invoke_id,
timeDuration,
enable_disable,
&password);
timeDuration = 12345;
enable_disable = COMMUNICATION_DISABLE;
test_DeviceCommunicationControlData(
pTest,
invoke_id,
timeDuration,
enable_disable,
NULL);
return;
}
#ifdef TEST_DEVICE_COMMUNICATION_CONTROL
int main(void)
{
Test *pTest;
bool rc;
pTest = ct_create("BACnet DeviceCommunicationControl", NULL);
/* individual tests */
rc = ct_addTestFunction(pTest, test_DeviceCommunicationControl);
assert(rc);
ct_setStream(pTest, stdout);
ct_run(pTest);
(void) ct_report(pTest);
ct_destroy(pTest);
return 0;
}
#endif /* TEST_DEVICE_COMMUNICATION_CONTROL */
#endif /* TEST */
bacnet-stack/dcc.h
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/*####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####*/
#ifndef DCC_H
#define DCC_H
#include <stdint.h>
#include <stdbool.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
// encode service
int dcc_encode_apdu(
uint8_t *apdu,
uint8_t invoke_id,
uint16_t timeDuration, /* 0=optional */
BACNET_COMMUNICATION_ENABLE_DISABLE enable_disable,
BACNET_CHARACTER_STRING *password); /* NULL=optional */
// decode the service request only
int dcc_decode_service_request(
uint8_t *apdu,
unsigned apdu_len,
uint16_t *timeDuration,
BACNET_COMMUNICATION_ENABLE_DISABLE *enable_disable,
BACNET_CHARACTER_STRING *password);
int dcc_decode_apdu(
uint8_t *apdu,
unsigned apdu_len,
uint8_t *invoke_id,
uint16_t *timeDuration,
BACNET_COMMUNICATION_ENABLE_DISABLE *enable_disable,
BACNET_CHARACTER_STRING *password);
#ifdef TEST
#include "ctest.h"
void test_DeviceCommunicationControl(Test * pTest);
#endif
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif
bacnet-stack/dcc.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_DEVICE_COMMUNICATION_CONTROL -g
SRCS = bacdcode.c \
bacstr.c \
bigend.c \
dcc.c \
test/ctest.c
OBJS = ${SRCS:.c=.o}
TARGET = dcc
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