skarg
473 lines
15 KiB
C
473 lines
15 KiB
C
/*####COPYRIGHTBEGIN####
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-------------------------------------------
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Copyright (C) 2005 Steve Karg
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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The Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA.
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As a special exception, if other files instantiate templates or
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use macros or inline functions from this file, or you compile
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this file and link it with other works to produce a work based
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on this file, this file does not by itself cause the resulting
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work to be covered by the GNU General Public License. However
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the source code for this file must still be made available in
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accordance with section (3) of the GNU General Public License.
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This exception does not invalidate any other reasons why a work
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based on this file might be covered by the GNU General Public
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License.
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-------------------------------------------
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####COPYRIGHTEND####*/
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#include <stdint.h>
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#include "bacenum.h"
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#include "bacdcode.h"
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#include "bacdef.h"
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#include "device.h"
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#include "wp.h"
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// encode service
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int wp_encode_apdu(
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uint8_t *apdu,
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uint8_t invoke_id,
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BACNET_WRITE_PROPERTY_DATA *data)
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{
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int apdu_len = 0; // total length of the apdu, return value
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if (apdu)
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{
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apdu[0] = PDU_TYPE_CONFIRMED_SERVICE_REQUEST;
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apdu[1] = encode_max_segs_max_apdu(0, Device_Max_APDU_Length_Accepted());
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apdu[2] = invoke_id;
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apdu[3] = SERVICE_CONFIRMED_WRITE_PROPERTY; // service choice
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apdu_len = 4;
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apdu_len += encode_context_object_id(&apdu[apdu_len], 0,
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data->object_type, data->object_instance);
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apdu_len += encode_context_enumerated(&apdu[apdu_len], 1,
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data->object_property);
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/* optional array index; ALL is -1 which is assumed when missing */
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if (data->array_index != BACNET_ARRAY_ALL)
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apdu_len += encode_context_unsigned(&apdu[apdu_len], 2,
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data->array_index);
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// propertyValue
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apdu_len += encode_opening_tag(&apdu[apdu_len], 3);
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if (data->value.tag == BACNET_APPLICATION_TAG_NULL)
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apdu[apdu_len++] = data->value.tag;
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else if (data->value.tag == BACNET_APPLICATION_TAG_BOOLEAN)
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apdu_len += encode_tagged_boolean(&apdu[apdu_len],
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data->value.type.Boolean);
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else if (data->value.tag == BACNET_APPLICATION_TAG_UNSIGNED_INT)
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apdu_len += encode_tagged_unsigned(&apdu[apdu_len],
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data->value.type.Unsigned_Int);
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else if (data->value.tag == BACNET_APPLICATION_TAG_SIGNED_INT)
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apdu_len += encode_tagged_signed(&apdu[apdu_len],
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data->value.type.Signed_Int);
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else if (data->value.tag == BACNET_APPLICATION_TAG_REAL)
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apdu_len += encode_tagged_real(&apdu[apdu_len],
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data->value.type.Real);
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else if (data->value.tag == BACNET_APPLICATION_TAG_ENUMERATED)
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apdu_len += encode_tagged_enumerated(&apdu[apdu_len],
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data->value.type.Enumerated);
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else if (data->value.tag == BACNET_APPLICATION_TAG_DATE)
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apdu_len += encode_tagged_date(&apdu[apdu_len],
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data->value.type.Date.year,
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data->value.type.Date.month,
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data->value.type.Date.day,
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data->value.type.Date.wday);
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else if (data->value.tag == BACNET_APPLICATION_TAG_TIME)
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apdu_len += encode_tagged_time(&apdu[apdu_len],
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data->value.type.Time.hour,
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data->value.type.Time.min,
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data->value.type.Time.sec,
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data->value.type.Time.hundredths);
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else if (data->value.tag == BACNET_APPLICATION_TAG_OBJECT_ID)
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apdu_len += encode_tagged_object_id(&apdu[apdu_len],
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data->value.type.Object_ID.type,data->value.type.Object_ID.instance);
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apdu_len += encode_closing_tag(&apdu[apdu_len], 3);
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// optional priority - 0 if not set, 1..16 if set
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if (data->priority)
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apdu_len += encode_context_unsigned(&apdu[apdu_len], 4,
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data->priority);
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}
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return apdu_len;
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}
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// decode the service request only
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int wp_decode_service_request(
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uint8_t *apdu,
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unsigned apdu_len,
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BACNET_WRITE_PROPERTY_DATA *data)
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{
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int len = 0;
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int tag_len = 0;
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uint8_t tag_number = 0;
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uint32_t len_value_type = 0;
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int type = 0; // for decoding
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int property = 0; // for decoding
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unsigned unsigned_value = 0;
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int hour, min, sec, hundredths;
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int year, month, day, wday;
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int object_type = 0;
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uint32_t instance = 0;
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// check for value pointers
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if (apdu_len && data)
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{
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// Tag 0: Object ID
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if (!decode_is_context_tag(&apdu[len++], 0))
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return -1;
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len += decode_object_id(&apdu[len], &type, &data->object_instance);
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data->object_type = type;
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// Tag 1: Property ID
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len += decode_tag_number_and_value(&apdu[len],
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&tag_number, &len_value_type);
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if (tag_number != 1)
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return -1;
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len += decode_enumerated(&apdu[len], len_value_type, &property);
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data->object_property = property;
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// Tag 2: Optional Array Index
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// note: decode without incrementing len so we can check for opening tag
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tag_len = decode_tag_number_and_value(&apdu[len],
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&tag_number, &len_value_type);
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if (tag_number == 2)
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{
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len += tag_len;
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len += decode_unsigned(&apdu[len], len_value_type,
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&unsigned_value);
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data->array_index = unsigned_value;
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}
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else
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data->array_index = BACNET_ARRAY_ALL;
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// Tag 3: opening context tag */
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if (!decode_is_opening_tag_number(&apdu[len], 3))
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return -1;
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// a tag number of 3 is not extended so only one octet
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len++;
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tag_len = decode_tag_number_and_value(&apdu[len],
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&tag_number, &len_value_type);
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if (tag_len)
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{
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len += tag_len;
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if (tag_number == BACNET_APPLICATION_TAG_NULL)
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{
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data->value.tag = tag_number;
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}
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else if (tag_number == BACNET_APPLICATION_TAG_BOOLEAN)
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{
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data->value.tag = tag_number;
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data->value.type.Boolean = decode_boolean(len_value_type);
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}
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else if (tag_number == BACNET_APPLICATION_TAG_UNSIGNED_INT)
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{
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data->value.tag = tag_number;
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len += decode_unsigned(&apdu[len],
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len_value_type,
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&data->value.type.Unsigned_Int);
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}
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else if (tag_number == BACNET_APPLICATION_TAG_SIGNED_INT)
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{
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data->value.tag = tag_number;
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len += decode_unsigned(&apdu[len],
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len_value_type,
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&data->value.type.Signed_Int);
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}
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else if (tag_number == BACNET_APPLICATION_TAG_REAL)
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{
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data->value.tag = tag_number;
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len += decode_real(&apdu[len],&(data->value.type.Real));
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}
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else if (tag_number == BACNET_APPLICATION_TAG_ENUMERATED)
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{
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data->value.tag = tag_number;
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len += decode_enumerated(&apdu[len],
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len_value_type,
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&data->value.type.Enumerated);
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}
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else if (tag_number == BACNET_APPLICATION_TAG_DATE)
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{
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data->value.tag = tag_number;
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len += decode_date(&apdu[len], &year, &month, &day, &wday);
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data->value.type.Date.year = year;
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data->value.type.Date.month = month;
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data->value.type.Date.day = day;
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data->value.type.Date.wday = wday;
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}
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else if (tag_number == BACNET_APPLICATION_TAG_TIME)
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{
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data->value.tag = tag_number;
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len += decode_bacnet_time(&apdu[len], &hour, &min, &sec, &hundredths);
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data->value.type.Time.hour = hour;
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data->value.type.Time.min = min;
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data->value.type.Time.sec = sec;
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data->value.type.Time.hundredths = hundredths;
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}
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else if (tag_number == BACNET_APPLICATION_TAG_OBJECT_ID)
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{
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data->value.tag = tag_number;
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len += decode_object_id(&apdu[tag_len],
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&object_type,
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&instance);
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data->value.type.Object_ID.type = object_type;
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data->value.type.Object_ID.instance = instance;
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}
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else
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return -1;
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}
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else
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return -1;
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if (!decode_is_closing_tag_number(&apdu[len], 3))
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return -1;
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// a tag number of 3 is not extended so only one octet
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len++;
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// Tag 4: optional Priority
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data->priority = BACNET_MAX_PRIORITIES;
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if (len < apdu_len)
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{
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tag_len = decode_tag_number_and_value(&apdu[len],
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&tag_number, &len_value_type);
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if (tag_number == 4)
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{
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len += tag_len;
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len = decode_unsigned(&apdu[len], len_value_type, &unsigned_value);
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data->priority = unsigned_value;
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}
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}
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}
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return len;
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}
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int wp_decode_apdu(
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uint8_t *apdu,
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unsigned apdu_len,
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uint8_t *invoke_id,
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BACNET_WRITE_PROPERTY_DATA *data)
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{
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int len = 0;
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unsigned offset = 0;
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if (!apdu)
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return -1;
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// optional checking - most likely was already done prior to this call
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if (apdu[0] != PDU_TYPE_CONFIRMED_SERVICE_REQUEST)
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return -1;
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// apdu[1] = encode_max_segs_max_apdu(0, Device_Max_APDU_Length_Accepted());
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*invoke_id = apdu[2]; /* invoke id - filled in by net layer */
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if (apdu[3] != SERVICE_CONFIRMED_WRITE_PROPERTY)
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return -1;
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offset = 4;
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if (apdu_len > offset)
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{
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len = wp_decode_service_request(
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&apdu[offset],
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apdu_len - offset,
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data);
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}
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return len;
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}
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#ifdef TEST
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#include <assert.h>
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#include <string.h>
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#include "ctest.h"
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void testWritePropertyTag(Test * pTest,
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BACNET_WRITE_PROPERTY_DATA *data)
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{
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BACNET_WRITE_PROPERTY_DATA test_data = {0};
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uint8_t apdu[480] = {0};
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int len = 0;
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int apdu_len = 0;
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uint8_t invoke_id = 128;
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uint8_t test_invoke_id = 0;
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len = wp_encode_apdu(
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&apdu[0],
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invoke_id,
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data);
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ct_test(pTest, len != 0);
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apdu_len = len;
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len = wp_decode_apdu(
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&apdu[0],
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apdu_len,
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&test_invoke_id,
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&test_data);
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ct_test(pTest, len != -1);
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ct_test(pTest, test_data.object_type == data->object_type);
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ct_test(pTest, test_data.object_instance == data->object_instance);
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ct_test(pTest, test_data.object_property == data->object_property);
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ct_test(pTest, test_data.array_index == data->array_index);
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ct_test(pTest, test_data.value.tag == data->value.tag);
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switch (test_data.value.tag)
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{
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case BACNET_APPLICATION_TAG_NULL:
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break;
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case BACNET_APPLICATION_TAG_BOOLEAN:
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ct_test(pTest, test_data.value.type.Boolean ==
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data->value.type.Boolean);
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break;
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case BACNET_APPLICATION_TAG_UNSIGNED_INT:
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ct_test(pTest, test_data.value.type.Unsigned_Int ==
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data->value.type.Unsigned_Int);
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break;
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case BACNET_APPLICATION_TAG_SIGNED_INT:
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ct_test(pTest, test_data.value.type.Signed_Int ==
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data->value.type.Signed_Int);
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break;
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case BACNET_APPLICATION_TAG_REAL:
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ct_test(pTest, test_data.value.type.Real ==
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data->value.type.Real);
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break;
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case BACNET_APPLICATION_TAG_ENUMERATED:
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ct_test(pTest, test_data.value.type.Enumerated ==
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data->value.type.Enumerated);
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break;
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case BACNET_APPLICATION_TAG_DATE:
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ct_test(pTest, test_data.value.type.Date.year ==
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data->value.type.Date.year);
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ct_test(pTest, test_data.value.type.Date.month ==
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data->value.type.Date.month);
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ct_test(pTest, test_data.value.type.Date.day ==
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data->value.type.Date.day);
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ct_test(pTest, test_data.value.type.Date.wday ==
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data->value.type.Date.wday);
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break;
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case BACNET_APPLICATION_TAG_TIME:
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ct_test(pTest, test_data.value.type.Time.hour ==
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data->value.type.Time.hour);
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ct_test(pTest, test_data.value.type.Time.min ==
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data->value.type.Time.min);
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ct_test(pTest, test_data.value.type.Time.sec ==
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data->value.type.Time.sec);
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ct_test(pTest, test_data.value.type.Time.hundredths ==
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data->value.type.Time.hundredths);
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break;
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case BACNET_APPLICATION_TAG_OBJECT_ID:
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ct_test(pTest, test_data.value.type.Object_ID.type ==
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data->value.type.Object_ID.type);
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ct_test(pTest, test_data.value.type.Object_ID.instance ==
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data->value.type.Object_ID.instance);
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break;
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default:
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break;
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}
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}
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void testWriteProperty(Test * pTest)
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{
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BACNET_WRITE_PROPERTY_DATA data = {0};
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data.value.tag = BACNET_APPLICATION_TAG_NULL;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_BOOLEAN;
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data.value.type.Boolean = true;
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testWritePropertyTag(pTest, &data);
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data.value.type.Boolean = false;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_UNSIGNED_INT;
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data.value.type.Unsigned_Int = 0;
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testWritePropertyTag(pTest, &data);
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data.value.type.Unsigned_Int = 0xFFFF;
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testWritePropertyTag(pTest, &data);
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data.value.type.Unsigned_Int = 0xFFFFFFFF;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_SIGNED_INT;
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data.value.type.Signed_Int = 0;
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testWritePropertyTag(pTest, &data);
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data.value.type.Signed_Int = -1;
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testWritePropertyTag(pTest, &data);
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data.value.type.Signed_Int = 32768;
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testWritePropertyTag(pTest, &data);
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data.value.type.Signed_Int = -32768;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_REAL;
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data.value.type.Real = 0.0;
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testWritePropertyTag(pTest, &data);
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data.value.type.Real = -1.0;
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testWritePropertyTag(pTest, &data);
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data.value.type.Real = 1.0;
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testWritePropertyTag(pTest, &data);
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data.value.type.Real = 3.14159;
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testWritePropertyTag(pTest, &data);
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data.value.type.Real = -3.14159;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_ENUMERATED;
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data.value.type.Enumerated = 0;
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testWritePropertyTag(pTest, &data);
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data.value.type.Enumerated = 0xFFFF;
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testWritePropertyTag(pTest, &data);
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data.value.type.Enumerated = 0xFFFFFFFF;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_DATE;
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data.value.type.Date.year = 5;
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data.value.type.Date.month = 5;
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data.value.type.Date.day = 22;
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data.value.type.Date.wday = 1;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_TIME;
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data.value.type.Time.hour = 23;
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data.value.type.Time.min = 59;
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data.value.type.Time.sec = 59;
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data.value.type.Time.hundredths = 12;
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testWritePropertyTag(pTest, &data);
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data.value.tag = BACNET_APPLICATION_TAG_OBJECT_ID;
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data.value.type.Object_ID.type = OBJECT_ANALOG_INPUT;
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data.value.type.Object_ID.instance = 0;
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testWritePropertyTag(pTest, &data);
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data.value.type.Object_ID.type = OBJECT_LIFE_SAFETY_ZONE;
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data.value.type.Object_ID.instance = BACNET_MAX_INSTANCE;
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testWritePropertyTag(pTest, &data);
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return;
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}
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#ifdef TEST_WRITE_PROPERTY
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uint16_t Device_Max_APDU_Length_Accepted(void)
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{
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return MAX_APDU;
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}
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int main(void)
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{
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Test *pTest;
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bool rc;
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pTest = ct_create("BACnet WriteProperty", NULL);
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/* individual tests */
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rc = ct_addTestFunction(pTest, testWriteProperty);
|
|
assert(rc);
|
|
|
|
ct_setStream(pTest, stdout);
|
|
ct_run(pTest);
|
|
(void) ct_report(pTest);
|
|
ct_destroy(pTest);
|
|
|
|
return 0;
|
|
}
|
|
#endif /* TEST_WRITE_PROPERTY */
|
|
#endif /* TEST */
|