int wpm_encode_apdu_object_property(
uint8_t * apdu,
BACNET_WRITE_PROPERTY_DATA * wpdata)
{
int apdu_len = 0; /* total length of the apdu, return value */
int len = 0;
if (apdu) {
apdu_len =
encode_context_enumerated(&apdu[0], 0, wpdata->object_property);
/* optional array index */
if (wpdata->array_index != BACNET_ARRAY_ALL) {
apdu_len +=
encode_context_unsigned(&apdu[apdu_len], 1,
wpdata->array_index);
}
apdu_len += encode_opening_tag(&apdu[apdu_len], 2);
for (len = 0; len < wpdata->application_data_len; len++) {
apdu[apdu_len] = wpdata->application_data[len];
apdu_len++;
}
apdu_len += encode_closing_tag(&apdu[apdu_len], 2);
if (wpdata->priority != BACNET_NO_PRIORITY) {
encode_context_unsigned(&apdu[apdu_len], 3, wpdata->priority);
}
}
return apdu_len;
}
int wpm_error_ack_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_WRITE_PROPERTY_DATA * wp_data)
{
int len = 0;
if (apdu) {
apdu[len++] = PDU_TYPE_ERROR;
apdu[len++] = invoke_id;
apdu[len++] = SERVICE_CONFIRMED_WRITE_PROP_MULTIPLE;
len += encode_opening_tag(&apdu[len], 0);
len += encode_application_enumerated(&apdu[len], wp_data->error_class);
len += encode_application_enumerated(&apdu[len], wp_data->error_code);
len += encode_closing_tag(&apdu[len], 0);
len += encode_opening_tag(&apdu[len], 1);
len +=
encode_context_object_id(&apdu[len], 0, wp_data->object_type,
wp_data->object_instance);
len +=
encode_context_enumerated(&apdu[len], 1, wp_data->object_property);
if (wp_data->array_index != BACNET_ARRAY_ALL)
len +=
encode_context_unsigned(&apdu[len], 2, wp_data->array_index);
len += encode_closing_tag(&apdu[len], 1);
}
return len;
}
/* encode service */
int rd_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_REINITIALIZED_STATE state,
BACNET_CHARACTER_STRING * password)
{
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;
len = encode_context_enumerated(&apdu[apdu_len], 0, state);
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], 1, password);
apdu_len += len;
}
}
return apdu_len;
}
int bacapp_encode_access_rule(
uint8_t * apdu,
BACNET_ACCESS_RULE * rule)
{
int len;
int apdu_len = 0;
len = encode_context_enumerated(&apdu[0], 0, rule->time_range_specifier);
apdu_len += len;
if (rule->time_range_specifier == TIME_RANGE_SPECIFIER_SPECIFIED) {
len =
bacapp_encode_context_device_obj_property_ref(&apdu[apdu_len], 1,
&rule->time_range);
if (len > 0)
apdu_len += len;
else
return -1;
}
len =
encode_context_enumerated(&apdu[apdu_len], 2,
rule->location_specifier);
apdu_len += len;
if (rule->location_specifier == LOCATION_SPECIFIER_SPECIFIED) {
len =
bacapp_encode_context_device_obj_property_ref(&apdu[apdu_len], 3,
&rule->location);
if (len > 0)
apdu_len += len;
else
return -1;
}
len = encode_context_boolean(&apdu[apdu_len], 4, rule->enable);
apdu_len += len;
return apdu_len;
}
/* encode service */
int wp_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_WRITE_PROPERTY_DATA * wpdata)
{
int apdu_len = 0; /* total length of the apdu, return value */
int 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_WRITE_PROPERTY; /* service choice */
apdu_len = 4;
len =
encode_context_object_id(&apdu[apdu_len], 0, wpdata->object_type,
wpdata->object_instance);
apdu_len += len;
len =
encode_context_enumerated(&apdu[apdu_len], 1,
wpdata->object_property);
apdu_len += len;
/* optional array index; ALL is -1 which is assumed when missing */
if (wpdata->array_index != BACNET_ARRAY_ALL) {
len =
encode_context_unsigned(&apdu[apdu_len], 2,
wpdata->array_index);
apdu_len += len;
}
/* propertyValue */
len = encode_opening_tag(&apdu[apdu_len], 3);
apdu_len += len;
for (len = 0; len < wpdata->application_data_len; len++) {
apdu[apdu_len + len] = wpdata->application_data[len];
}
apdu_len += wpdata->application_data_len;
len = encode_closing_tag(&apdu[apdu_len], 3);
apdu_len += len;
/* optional priority - 0 if not set, 1..16 if set */
if (wpdata->priority != BACNET_NO_PRIORITY) {
len =
encode_context_unsigned(&apdu[apdu_len], 4, wpdata->priority);
apdu_len += len;
}
}
return apdu_len;
}
int rpm_encode_apdu_object_property(
uint8_t * apdu,
BACNET_PROPERTY_ID object_property,
uint32_t array_index)
{
int apdu_len = 0; /* total length of the apdu, return value */
if (apdu) {
apdu_len = encode_context_enumerated(&apdu[0], 0, object_property);
/* optional array index */
if (array_index != BACNET_ARRAY_ALL)
apdu_len +=
encode_context_unsigned(&apdu[apdu_len], 1, array_index);
}
return apdu_len;
}
int Lighting_Output_Encode_Lighting_Command(
uint8_t * apdu,
BACNET_LIGHTING_COMMAND * data)
{
int apdu_len = 0; /* total length of the apdu, return value */
int len = 0; /* total length of the apdu, return value */
float real_value = 0.0;
uint32_t unsigned_value = 0;
if (apdu) {
len = encode_context_enumerated(&apdu[apdu_len], 0, data->operation);
apdu_len += len;
/* optional level? */
if (data->level != 255) {
real_value = data->level;
len = encode_context_real(&apdu[apdu_len], 1, real_value);
apdu_len += len;
}
/* optional ramp-rate */
if (data->ramp_rate != 255) {
real_value = data->ramp_rate;
len = encode_context_real(&apdu[apdu_len], 2, real_value);
apdu_len += len;
}
/* optional step increment */
if (data->step_increment != 255) {
real_value = data->step_increment;
len = encode_context_real(&apdu[apdu_len], 3, real_value);
apdu_len += len;
}
/* optional fade time */
if (data->fade_time != 0) {
real_value = data->fade_time;
len = encode_context_real(&apdu[apdu_len], 4, real_value);
apdu_len += len;
}
/* optional duration */
if (data->duration != 0) {
unsigned_value = data->duration;
len = encode_context_unsigned(&apdu[apdu_len], 5, unsigned_value);
apdu_len += len;
}
}
return apdu_len;
}
/**
* Encodes into bytes from the lighting-command structure
*
* @param apdu - buffer to hold the bytes
* @param value - lighting command value to encode
*
* @return number of bytes encoded, or 0 if unable to encode.
*/
int lighting_command_encode(
uint8_t * apdu,
BACNET_LIGHTING_COMMAND * data)
{
int apdu_len = 0; /* total length of the apdu, return value */
int len = 0; /* total length of the apdu, return value */
if (apdu) {
len = encode_context_enumerated(&apdu[apdu_len], 0,
data->operation);
apdu_len += len;
/* optional target-level */
if (data->use_target_level) {
len = encode_context_real(&apdu[apdu_len], 1,
data->target_level);
apdu_len += len;
}
/* optional ramp-rate */
if (data->use_ramp_rate) {
len = encode_context_real(&apdu[apdu_len], 2,
data->ramp_rate);
apdu_len += len;
}
/* optional step increment */
if (data->use_step_increment) {
len = encode_context_real(&apdu[apdu_len], 3,
data->step_increment);
apdu_len += len;
}
/* optional fade time */
if (data->use_fade_time) {
len = encode_context_unsigned(&apdu[apdu_len], 4,
data->fade_time);
apdu_len += len;
}
/* optional priority */
if (data->use_priority) {
len = encode_context_unsigned(&apdu[apdu_len], 5,
data->priority);
apdu_len += len;
}
}
return apdu_len;
}
int rpm_ack_encode_apdu_object_property(
uint8_t * apdu,
BACNET_PROPERTY_ID object_property,
uint32_t array_index)
{
int apdu_len = 0; /* total length of the apdu, return value */
if (apdu) {
/* Tag 2: propertyIdentifier */
apdu_len = encode_context_enumerated(&apdu[0], 2, object_property);
/* Tag 3: optional propertyArrayIndex */
if (array_index != BACNET_ARRAY_ALL)
apdu_len +=
encode_context_unsigned(&apdu[apdu_len], 3, array_index);
}
return apdu_len;
}
/***************************************************
**
** Encodes the service data part of Event Notification
**
****************************************************/
int alarm_ack_encode_service_request(
uint8_t * apdu,
BACNET_ALARM_ACK_DATA * data)
{
int len = 0; /* length of each encoding */
int apdu_len = 0; /* total length of the apdu, return value */
if (apdu) {
len =
encode_context_unsigned(&apdu[apdu_len], 0,
data->ackProcessIdentifier);
apdu_len += len;
len =
encode_context_object_id(&apdu[apdu_len], 1,
(int) data->eventObjectIdentifier.type,
data->eventObjectIdentifier.instance);
apdu_len += len;
len =
encode_context_enumerated(&apdu[apdu_len], 2,
data->eventStateAcked);
apdu_len += len;
len =
bacapp_encode_context_timestamp(&apdu[apdu_len], 3,
&data->eventTimeStamp);
apdu_len += len;
len =
encode_context_character_string(&apdu[apdu_len], 4,
&data->ackSource);
apdu_len += len;
len =
bacapp_encode_context_timestamp(&apdu[apdu_len], 5,
&data->ackTimeStamp);
apdu_len += len;
}
return apdu_len;
}
/* encode service */
int rp_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_READ_PROPERTY_DATA * rpdata)
{
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;
if (rpdata->object_type <= BACNET_MAX_OBJECT) {
/* check bounds so that we could create malformed
messages for testing */
len =
encode_context_object_id(&apdu[apdu_len], 0,
rpdata->object_type, rpdata->object_instance);
apdu_len += len;
}
if (rpdata->object_property <= 4194303) {
/* check bounds so that we could create malformed
messages for testing */
len =
encode_context_enumerated(&apdu[apdu_len], 1,
rpdata->object_property);
apdu_len += len;
}
/* optional array index */
if (rpdata->array_index != BACNET_ARRAY_ALL) {
len =
encode_context_unsigned(&apdu[apdu_len], 2,
rpdata->array_index);
apdu_len += len;
}
}
return apdu_len;
}
int lso_encode_apdu(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_LSO_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_CONFIRMED_SERVICE_REQUEST;
apdu[1] = encode_max_segs_max_apdu(0, MAX_APDU);
apdu[2] = invoke_id;
apdu[3] = SERVICE_CONFIRMED_LIFE_SAFETY_OPERATION;
apdu_len = 4;
/* tag 0 - requestingProcessId */
len = encode_context_unsigned(&apdu[apdu_len], 0, data->processId);
apdu_len += len;
/* tag 1 - requestingSource */
len =
encode_context_character_string(&apdu[apdu_len], 1,
&data->requestingSrc);
apdu_len += len;
/*
Operation
*/
len = encode_context_enumerated(&apdu[apdu_len], 2, data->operation);
apdu_len += len;
/*
Object ID
*/
len =
encode_context_object_id(&apdu[apdu_len], 3,
(int) data->targetObject.type, data->targetObject.instance);
apdu_len += len;
}
return apdu_len;
}
/* alternate method to encode the ack without extra buffer */
int rp_ack_encode_apdu_init(
uint8_t * apdu,
uint8_t invoke_id,
BACNET_READ_PROPERTY_DATA * rpdata)
{
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 */
len =
encode_context_object_id(&apdu[apdu_len], 0, rpdata->object_type,
rpdata->object_instance);
apdu_len += len;
len =
encode_context_enumerated(&apdu[apdu_len], 1,
rpdata->object_property);
apdu_len += len;
/* context 2 array index is optional */
if (rpdata->array_index != BACNET_ARRAY_ALL) {
len =
encode_context_unsigned(&apdu[apdu_len], 2,
rpdata->array_index);
apdu_len += len;
}
len = encode_opening_tag(&apdu[apdu_len], 3);
apdu_len += len;
}
return apdu_len;
}
int bacapp_encode_device_obj_property_ref(
uint8_t * apdu,
BACNET_DEVICE_OBJECT_PROPERTY_REFERENCE * value)
{
int len;
int apdu_len = 0;
len =
encode_context_object_id(&apdu[apdu_len], 0,
(int) value->objectIdentifier.type, value->objectIdentifier.instance);
apdu_len += len;
len =
encode_context_enumerated(&apdu[apdu_len], 1,
value->propertyIdentifier);
apdu_len += len;
/* Array index is optional so check if needed before inserting */
if (value->arrayIndex != BACNET_ARRAY_ALL) {
len = encode_context_unsigned(&apdu[apdu_len], 2, value->arrayIndex);
apdu_len += len;
}
/* Likewise, device id is optional so see if needed
* (set type to BACNET_NO_DEV_TYPE or something other than OBJECT_DEVICE to
* omit */
if (value->deviceIndentifier.type == OBJECT_DEVICE) {
len =
encode_context_object_id(&apdu[apdu_len], 3,
(int) value->deviceIndentifier.type,
value->deviceIndentifier.instance);
apdu_len += len;
}
return apdu_len;
}
/** Encode an RPM request, to be sent.
*
* @param apdu [in,out] Buffer to hold encoded bytes.
* @param max_apdu [in] Length of apdu buffer.
* @param invoke_id [in] The Invoke ID to use for this message.
* @param read_access_data [in] The RPM data to be requested.
* @return Length of encoded bytes, or 0 on failure.
*/
int rpm_encode_apdu(
uint8_t * apdu,
size_t max_apdu,
uint8_t invoke_id,
BACNET_READ_ACCESS_DATA * read_access_data)
{
int apdu_len = 0; /* total length of the apdu, return value */
int len = 0; /* length of the data */
BACNET_READ_ACCESS_DATA *rpm_object; /* current object */
uint8_t apdu_temp[16]; /* temp for data before copy */
BACNET_PROPERTY_REFERENCE *rpm_property; /* current property */
len = rpm_encode_apdu_init(&apdu_temp[0], invoke_id);
len =
(int) memcopy(&apdu[0], &apdu_temp[0], (size_t) apdu_len, (size_t) len,
(size_t) max_apdu);
if (len == 0) {
return 0;
}
apdu_len += len;
rpm_object = read_access_data;
while (rpm_object) {
len =
encode_context_object_id(&apdu_temp[0], 0, rpm_object->object_type,
rpm_object->object_instance);
len =
(int) memcopy(&apdu[0], &apdu_temp[0], (size_t) apdu_len,
(size_t) len, (size_t) max_apdu);
if (len == 0) {
return 0;
}
apdu_len += len;
/* Tag 1: sequence of ReadAccessSpecification */
len = encode_opening_tag(&apdu_temp[0], 1);
len =
(int) memcopy(&apdu[0], &apdu_temp[0], (size_t) apdu_len,
(size_t) len, (size_t) max_apdu);
if (len == 0) {
return 0;
}
apdu_len += len;
rpm_property = rpm_object->listOfProperties;
while (rpm_property) {
/* stuff as many properties into it as APDU length will allow */
len =
encode_context_enumerated(&apdu_temp[0], 0,
rpm_property->propertyIdentifier);
len =
(int) memcopy(&apdu[0], &apdu_temp[0], (size_t) apdu_len,
(size_t) len, (size_t) max_apdu);
if (len == 0) {
return 0;
}
apdu_len += len;
/* optional array index */
if (rpm_property->propertyArrayIndex != BACNET_ARRAY_ALL) {
len =
encode_context_unsigned(&apdu_temp[0], 1,
rpm_property->propertyArrayIndex);
len =
(int) memcopy(&apdu[0], &apdu_temp[0], (size_t) apdu_len,
(size_t) len, (size_t) max_apdu);
if (len == 0) {
return 0;
}
apdu_len += len;
}
rpm_property = rpm_property->next;
}
len = encode_closing_tag(&apdu_temp[0], 1);
len =
(int) memcopy(&apdu[0], &apdu_temp[0], (size_t) apdu_len,
(size_t) len, (size_t) max_apdu);
if (len == 0) {
return 0;
}
apdu_len += len;
rpm_object = rpm_object->next;
}
return apdu_len;
}
int bacapp_encode_property_state(
uint8_t * apdu,
BACNET_PROPERTY_STATE * value)
{
int len = 0; /* length of each encoding */
if (value && apdu) {
switch (value->tag) {
case BOOLEAN_VALUE:
len =
encode_context_boolean(&apdu[0], 0,
value->state.booleanValue);
break;
case BINARY_VALUE:
len =
encode_context_enumerated(&apdu[0], 1,
value->state.binaryValue);
break;
case EVENT_TYPE:
len =
encode_context_enumerated(&apdu[0], 2,
value->state.eventType);
break;
case POLARITY:
len =
encode_context_enumerated(&apdu[0], 3,
value->state.polarity);
break;
case PROGRAM_CHANGE:
len =
encode_context_enumerated(&apdu[0], 4,
value->state.programChange);
break;
case PROGRAM_STATE:
len =
encode_context_enumerated(&apdu[0], 5,
value->state.programState);
break;
case REASON_FOR_HALT:
len =
encode_context_enumerated(&apdu[0], 6,
value->state.programError);
break;
case RELIABILITY:
len =
encode_context_enumerated(&apdu[0], 7,
value->state.reliability);
break;
case STATE:
len =
encode_context_enumerated(&apdu[0], 8, value->state.state);
break;
case SYSTEM_STATUS:
len =
encode_context_enumerated(&apdu[0], 9,
value->state.systemStatus);
break;
case UNITS:
len =
encode_context_enumerated(&apdu[0], 10,
value->state.units);
break;
case UNSIGNED_VALUE:
len =
encode_context_unsigned(&apdu[0], 11,
value->state.unsignedValue);
break;
case LIFE_SAFETY_MODE:
len =
encode_context_enumerated(&apdu[0], 12,
value->state.lifeSafetyMode);
break;
case LIFE_SAFETY_STATE:
len =
encode_context_enumerated(&apdu[0], 13,
value->state.lifeSafetyState);
break;
default:
assert(0);
break;
}
}
return len;
}
static int cov_encode_subscription(
uint8_t * apdu,
int max_apdu,
BACNET_COV_SUBSCRIPTION * cov_subscription)
{
int len = 0;
int apdu_len = 0;
BACNET_OCTET_STRING octet_string;
/* FIXME: unused parameter */
max_apdu = max_apdu;
/* Recipient [0] BACnetRecipientProcess - opening */
len = encode_opening_tag(&apdu[apdu_len], 0);
apdu_len += len;
/* recipient [0] BACnetRecipient - opening */
len = encode_opening_tag(&apdu[apdu_len], 0);
apdu_len += len;
/* CHOICE - address [1] BACnetAddress - opening */
len = encode_opening_tag(&apdu[apdu_len], 1);
apdu_len += len;
/* network-number Unsigned16, */
/* -- A value of 0 indicates the local network */
len =
encode_application_unsigned(&apdu[apdu_len],
cov_subscription->dest.net);
apdu_len += len;
/* mac-address OCTET STRING */
/* -- A string of length 0 indicates a broadcast */
if (cov_subscription->dest.net) {
octetstring_init(&octet_string, &cov_subscription->dest.adr[0],
cov_subscription->dest.len);
} else {
octetstring_init(&octet_string, &cov_subscription->dest.mac[0],
cov_subscription->dest.mac_len);
}
len = encode_application_octet_string(&apdu[apdu_len], &octet_string);
apdu_len += len;
/* CHOICE - address [1] BACnetAddress - closing */
len = encode_closing_tag(&apdu[apdu_len], 1);
apdu_len += len;
/* recipient [0] BACnetRecipient - closing */
len = encode_closing_tag(&apdu[apdu_len], 0);
apdu_len += len;
/* processIdentifier [1] Unsigned32 */
len =
encode_context_unsigned(&apdu[apdu_len], 1,
cov_subscription->subscriberProcessIdentifier);
apdu_len += len;
/* Recipient [0] BACnetRecipientProcess - closing */
len = encode_closing_tag(&apdu[apdu_len], 0);
apdu_len += len;
/* MonitoredPropertyReference [1] BACnetObjectPropertyReference, */
len = encode_opening_tag(&apdu[apdu_len], 1);
apdu_len += len;
/* objectIdentifier [0] */
len =
encode_context_object_id(&apdu[apdu_len], 0,
cov_subscription->monitoredObjectIdentifier.type,
cov_subscription->monitoredObjectIdentifier.instance);
apdu_len += len;
/* propertyIdentifier [1] */
/* FIXME: we are monitoring 2 properties! How to encode? */
len = encode_context_enumerated(&apdu[apdu_len], 1, PROP_PRESENT_VALUE);
apdu_len += len;
/* MonitoredPropertyReference [1] - closing */
len = encode_closing_tag(&apdu[apdu_len], 1);
apdu_len += len;
/* IssueConfirmedNotifications [2] BOOLEAN, */
len =
encode_context_boolean(&apdu[apdu_len], 2,
cov_subscription->flag.issueConfirmedNotifications);
apdu_len += len;
/* TimeRemaining [3] Unsigned, */
len =
encode_context_unsigned(&apdu[apdu_len], 3,
cov_subscription->lifetime);
apdu_len += len;
return apdu_len;
}