def who_is_request_received(msg, network):
if not the_devices:
if debug: print 'who is received but we have no device(s)'
return
if len(msg.data) == 0: #device limits tags len==0 means global request
if debug: print 'who are'
for the_device in the_devices.values():
i_am(the_device, network)
else:
if debug: print 'check if we are who is'
tags = tag.decode(msg.data).value
if debug:
print tags
if len(tags) == 2:
if debug:
print tags[0]
print tags[1]
lower_limit = data.decode_unsigned_integer(tags[0].data) #Device Instance Range Low Limit
upper_limit = data.decode_unsigned_integer(tags[1].data)
if debug: print 'is it between: %s and %s' % (lower_limit, upper_limit)
# From bacnet plugfest, we were filtering out anyone not on our network from test for
# address limits. We were responding ok to global whoisall
# if network == the_device.network:
for the_device in the_devices.values():
if the_device.instance_number >= lower_limit:
if the_device.instance_number <= upper_limit:
if debug: print 'i am the mo-fo'
i_am(the_device, network)
def read_property_g3(device, prop, timeout=3.0, **keywords):
object = prop[0]
instance = prop[1]
property = prop[2]
arrayidx = None
if len(prop) > 3 :
arrayidx = prop[3]
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 12
objID = tag.Context(0,data.BACnetObjectIdentifier(object,instance))
propID = tag.Context(1,data.encode_enumerated(property))
rp.data = objID.encoding + propID.encoding
if arrayidx is not None and arrayidx != -1:
rp.data = rp.data + \
tag.Context(2,data.encode_unsigned_integer(arrayidx)).\
encoding
if keywords.has_key('callback'):
keywords['callback'].callback(_read_property_callback)
request_id = network.send_request(device, rp, timeout, **keywords)
return keywords['callback']
else: #block until answer else let tsm handle callback
request_id = network.send_request(device, rp, timeout)
r = recv_response(request_id, timeout)
response = tag.decode(r.data)
return sequence.ReadPropertyACK(decode=response.value)
def read_property_g3(device, prop, timeout=3.0, **keywords):
object = prop[0]
instance = prop[1]
property = prop[2]
arrayidx = None
if len(prop) > 3:
arrayidx = prop[3]
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 12
objID = tag.Context(0, data.BACnetObjectIdentifier(object, instance))
propID = tag.Context(1, data.encode_enumerated(property))
rp.data = objID.encoding + propID.encoding
if arrayidx is not None and arrayidx != -1:
rp.data = rp.data + tag.Context(2, data.encode_unsigned_integer(arrayidx)).encoding
if keywords.has_key("callback"):
keywords["callback"].callback(_read_property_callback)
request_id = network.send_request(device, rp, timeout, **keywords)
return keywords["callback"]
else: # block until answer else let tsm handle callback
request_id = network.send_request(device, rp, timeout)
r = recv_response(request_id, timeout)
response = tag.decode(r.data)
return sequence.ReadPropertyACK(decode=response.value)
def read_property_multiple_g3(device, properties, timeout=3.0, no_fallback=0):
# Some device's do not properly answer multiple properties to multiple
# objects. This method first tries RPM, then RPM(singular) and finially RP
# to retrieve a list of properties.
# A readPropertyFallback attribute remembers which mode was successful and
# that is used in subsequent reads.
if (not (_device_table.has_key(device)) or \
(_device_table[device].readPropertyFallback < BACNET_RPM_SINGLE_OK)):
results = _read_property_multiple_g3(device,properties, timeout)
if (results != None):
if (len(results) == len(properties)):
_device_table[device].readPropertyFallback=1 # No fallback needed.
return results
elif no_fallback != 0:
return results
else:
# Broken device?
_device_table[device].readPropertyFallback=0
results = []
properties = copy.copy(properties)
while properties:
property = properties.pop(0)
try:
rp_result = read_property_g3(device, property)
if (rp_result is not None): #remember this worked
if (_device_table[device].readPropertyFallback == BACNET_RPM_UNKNOWN):
msglog.log('broadway', msglog.types.WARN,
'read_property fallback for device = ' +
str(device))
_device_table[device].readPropertyFallback = BACNET_RPM_NOT_SUPPORTED
#convert result to RPM style
result = sequence.ReadAccessResult()
result.object_identifier = rp_result.object_identifier
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=rp_result.property_identifier,
property_array_index=rp_result.property_array_index,
property_value=rp_result.property_value)
]
else:
# Place holder...
result = ReadAccessResult()
except BACnetError, e:
# Simulate RPMs behaviour when a subset of reads fail.
error = sequence.Error(decode=tag.decode(e.npdu.data).value)
result = sequence.ReadAccessResult()
result.object_identifier = data.BACnetObjectIdentifier(property[0],
property[1])
if len(property) > 3 and property[3] != -1:
index = property[3]
else:
index = -1
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=property[2],
property_array_index=index,
property_access_error=error)
]
results.append(result)
def who_is_request_received(msg, network):
if not the_devices:
if debug: print 'who is received but we have no device(s)'
return
if len(msg.data) == 0: #device limits tags len==0 means global request
if debug: print 'who are'
for the_device in the_devices.values():
i_am(the_device, network)
else:
if debug: print 'check if we are who is'
tags = tag.decode(msg.data).value
if debug:
print tags
if len(tags) == 2:
if debug:
print tags[0]
print tags[1]
lower_limit = data.decode_unsigned_integer(
tags[0].data) #Device Instance Range Low Limit
upper_limit = data.decode_unsigned_integer(tags[1].data)
if debug:
print 'is it between: %s and %s' % (lower_limit, upper_limit)
# From bacnet plugfest, we were filtering out anyone not on our network from test for
# address limits. We were responding ok to global whoisall
# if network == the_device.network:
for the_device in the_devices.values():
if the_device.instance_number >= lower_limit:
if the_device.instance_number <= upper_limit:
if debug: print 'i am the mo-fo'
i_am(the_device, network)
def server_read_property(device, msg):
s = None
o = None
ss = None
p = None
try:
# device.time_rp.begin()
request = tag.decode(msg.data)
if DEBUG:
print "SERVER READ PROPERTY request: ", request
s = sequence.ReadPropertyRequest(decode=request.value)
if DEBUG:
print "SERVER READ PROPERTY sequence: ", s
o = device.find_bacnet_object(s.object_identifier)
if o is None: # object not found
raise ENotFound(
"BACnet Server Read, Object not found, Type: %d Instance: %d propID: %d"
% (s.object_identifier.object_type, s.object_identifier.instance_number, s.property_identifier)
)
if DEBUG:
print "SERVER READ PROPERTY object: ", o
ss = s.property_identifier
if DEBUG:
print "ss = ", ss
p = o.find_property(ss)
if o is None: # object not found
raise ENotFound(
"BACnet Server Read, Prop not found, Type: %d Instance: %d propID: %d"
% (s.object_identifier.object_type, s.object_identifier.instance_number, s.property_identifier)
)
if DEBUG:
print "SERVER READ PROPERTY property: ", p
i = None
answer = sequence.ReadPropertyACK()
if s.property_array_index != OPTIONAL:
if DEBUG:
print "_bacnet.serverreadproperty ", s.property_array_index
i = s.property_array_index
answer.property_array_index = i
if DEBUG:
print i
answer.object_identifier = s.object_identifier
answer.property_identifier = s.property_identifier
answer.property_value = p.as_tags(i) # this is where we retrieve the value from the node
answer = complex_ack_pdu(msg, answer.encoding)
# device.time_rp.end()
return answer
except:
# @fixme use literals not numbers
msglog.log("mpx:bacnet", msglog.types.ERR, str(msg))
msglog.exception()
if p:
return error_pdu(msg, 2, 25) # operational-problem
if o:
return error_pdu(msg, 2, 32) # unknown-property
if s:
return error_pdu(msg, 1, 31) # unknown-object
return error_pdu(msg, 2, 0) # other
def read_property_multiple_g3(device, properties, timeout=3.0, no_fallback=0):
# Some device's do not properly answer multiple properties to multiple
# objects. This method first tries RPM, then RPM(singular) and finially RP
# to retrieve a list of properties.
# A readPropertyFallback attribute remembers which mode was successful and
# that is used in subsequent reads.
if not (_device_table.has_key(device)) or (_device_table[device].readPropertyFallback < BACNET_RPM_SINGLE_OK):
results = _read_property_multiple_g3(device, properties, timeout)
if results != None:
if len(results) == len(properties):
_device_table[device].readPropertyFallback = 1 # No fallback needed.
return results
elif no_fallback != 0:
return results
else:
# Broken device?
_device_table[device].readPropertyFallback = 0
results = []
properties = copy.copy(properties)
while properties:
property = properties.pop(0)
try:
rp_result = read_property_g3(device, property)
if rp_result is not None: # remember this worked
if _device_table[device].readPropertyFallback == BACNET_RPM_UNKNOWN:
msglog.log("broadway", msglog.types.WARN, "read_property fallback for device = " + str(device))
_device_table[device].readPropertyFallback = BACNET_RPM_NOT_SUPPORTED
# convert result to RPM style
result = sequence.ReadAccessResult()
result.object_identifier = rp_result.object_identifier
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=rp_result.property_identifier,
property_array_index=rp_result.property_array_index,
property_value=rp_result.property_value,
)
]
else:
# Place holder...
result = ReadAccessResult()
except BACnetError, e:
# Simulate RPMs behaviour when a subset of reads fail.
error = sequence.Error(decode=tag.decode(e.npdu.data).value)
result = sequence.ReadAccessResult()
result.object_identifier = data.BACnetObjectIdentifier(property[0], property[1])
if len(property) > 3 and property[3] != -1:
index = property[3]
else:
index = -1
result.list_of_results = [
sequence._ReadPropertyMultipleResult(
property_identifier=property[2], property_array_index=index, property_access_error=error
)
]
results.append(result)
def read_property_multiple_real2(device, properties):
results = []
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 14
rp.data = array.array("c")
for prop in properties:
object = prop[0]
instance = prop[1]
property = prop[2]
objID = tag.Context(0, data.BACnetObjectIdentifier(object, instance))
if len(prop) < 4 or prop[3] == -1:
propID = tag.Construct(1, [tag.Context(0, data.encode_enumerated(property))])
else:
arrayidx = prop[3]
propID = tag.Construct(
1,
[
tag.Context(0, data.encode_enumerated(property)),
tag.Context(1, data.encode_unsigned_integer(arrayidx)),
],
)
rp.data.fromstring(objID.encoding)
rp.data.fromstring(propID.encoding)
request_id = network.send_request(device, rp)
r = recv_response(request_id)
responses = tag.decode(r.data)
for response in responses.value:
# Now if we felt like it, we could extract the BACnetIdentifierObject from
# the response data, at response.number 0. But we won't because
# we don't need it at the moment.
if response.number == 1:
# Property id/value list.
for p in response.value:
# Again, if we felt like it, we could extract the property
# ID from tag.number 2. But we won't because we don't use
# it. If we wrote code to match the request to response,
# we would need it.
if p.number == 4:
# Property value list
p_value = p.value[0].value
if p_value is None:
pass
p_bacnet_value_type = p.value[0].number
results.append((p_value, p_bacnet_value_type))
elif p.number == 3:
# Property value list
p_value = p.value[0].value
p_bacnet_value_type = p.value[0].number
results.append((p_value, p_bacnet_value_type))
elif p.number == 5:
# error code
results.append((None, None))
return results
def _read_property_multiple_callback(tsm):
try:
if tsm.exception:
raise tsm.exception
r = tsm.response
recv_callback_helper(r)
responses = tag.decode(r.data)
return sequence.context_read_access_result_list(responses)
except Exception, e:
return e
def _read_property_multiple_callback(tsm):
try:
if tsm.exception:
raise tsm.exception
r = tsm.response
recv_callback_helper(r)
responses = tag.decode(r.data)
return sequence.context_read_access_result_list(responses)
except Exception, e:
return e
def _read_property_callback(tsm):
try:
if tsm.exception:
raise tsm.exception
r = tsm.response
recv_callback_helper(r)
response = tag.decode(r.data)
return sequence.ReadPropertyACK(decode=response.value)
except Exception, e:
return e
def _read_property_callback(tsm):
try:
if tsm.exception:
raise tsm.exception
r = tsm.response
recv_callback_helper(r)
response = tag.decode(r.data)
return sequence.ReadPropertyACK(decode=response.value)
except Exception, e:
return e
def read_property_multiple_real2(device, properties):
results = []
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 14
rp.data = array.array('c')
for prop in properties:
object = prop[0]
instance = prop[1]
property = prop[2]
objID = tag.Context(0,data.BACnetObjectIdentifier(object,instance))
if len(prop) < 4 or prop[3] == -1:
propID = tag.Construct(
1,[tag.Context(0,data.encode_enumerated(property))]
)
else:
arrayidx = prop[3]
propID = tag.Construct(
1,[tag.Context(0, data.encode_enumerated(property)),
tag.Context(1, data.encode_unsigned_integer(arrayidx))]
)
rp.data.fromstring(objID.encoding)
rp.data.fromstring(propID.encoding)
request_id = network.send_request(device, rp)
r = recv_response(request_id)
responses = tag.decode(r.data)
for response in responses.value:
# Now if we felt like it, we could extract the BACnetIdentifierObject from
# the response data, at response.number 0. But we won't because
# we don't need it at the moment.
if response.number == 1:
# Property id/value list.
for p in response.value:
# Again, if we felt like it, we could extract the property
# ID from tag.number 2. But we won't because we don't use
# it. If we wrote code to match the request to response,
# we would need it.
if p.number == 4:
# Property value list
p_value = p.value[0].value
if p_value is None:
pass
p_bacnet_value_type = p.value[0].number
results.append((p_value, p_bacnet_value_type))
elif p.number == 3:
# Property value list
p_value = p.value[0].value
p_bacnet_value_type = p.value[0].number
results.append((p_value, p_bacnet_value_type))
elif p.number == 5:
# error code
results.append((None, None))
return results
def server_write_property_multiple(device, msg):
request = tag.decode(msg.data)
if DEBUG:
print "SERVER WRITE PROPERTY MULTIPLE request: ", request
results = None
# convert request into a list of read access specifications
ss = sequence.context_write_access_specification_list(request)
o = None
p = None
if DEBUG:
print "SERVER WRITE PROPERTY sequence: ", ss
for s in ss: # do each write access specification
o = device.find_bacnet_object(s.object_identifier)
if DEBUG:
print "SERVER WRITE PROPERTY object: ", o
for pv in s.list_of_properties:
i = None
if pv.property_array_index != OPTIONAL:
i = pv.property_array_index
priority = None
if pv.priority != OPTIONAL:
priority = pv.priority
try:
p = o.find_property(pv.property_identifier)
p.write(pv.value, i, priority) # index?
except EPermission:
if DEBUG:
print "SERVER WRITE PROPERTY EPERMISSION ERROR"
result = sequence.WritePropertyMultipleError()
result.error_type = sequence.Error(2, 40) # write access denied
bopr = BACnetObjectPropertyReference()
bopr.object_identifier = s.object_identifier
bopr.property_identifier = pv.property_identifier
bopr.property_index = pv.property_array_index
result.first_failed_write_attempt = bopr
return complex_ack_pdu(result.encoding)
except:
if DEBUG:
print "SERVER WRITE PROPERTY ERROR"
result = sequence.WritePropertyMultipleError()
if p:
result.error_type = sequence.Error(2, 25) # operational error
elif o:
result.error_type = sequence.Error(2, 32) # unknown property
else: # unkown object
result.error_type = sequence.Error(1, 31) # unknown object
bopr = BACnetObjectPropertyReference()
bopr.object_identifier = s.object_identifier
bopr.property_identifier = pv.property_identifier
bopr.property_index = pv.property_array_index
result.first_failed_write_attempt = bopr
return complex_ack_pdu(result.encoding)
if DEBUG:
print "SERVER WRITE PROPERTY property: ", p
return simple_ack_pdu(msg)
def cov_notification_msg(server_device, msg, confirmed):
notif = tag.decode(msg.data)
if DEBUG:
print "COV NOTIFICATION: ", notif
# convert request into a list of cov specifications
ss = sequence.CovNotification(decode=notif.value)
if DEBUG:
print "COV NOTIFICATION sequence: ", ss
pid = ss.pid
if DEBUG:
print "COV NOTIFICATION pid: ", pid
device_id = ss.device_identifier.instance_number
if DEBUG:
print "COV NOTIFICATION device_id: ", device_id
time_remaining = ss.time_remaining
if DEBUG:
print "COV NOTIFICATION time_remaining: ", time_remaining
if _device_table.has_key(device_id):
device = _device_table[device_id]
else:
# Unknown device.
return error_pdu(msg, 5, 25)
try:
if device.node is None:
dnode = as_node("/services/network/BACnet/internetwork/Devices/" + str(device_id))
device.node = dnode
o = device.node.as_node(
(str(ss.object_identifier.object_type)) + "/" + (str(ss.object_identifier.instance_number))
)
except:
return error_pdu(msg, 5, 25)
if DEBUG:
print "COV NOTIFICATION object: ", o
for pv in ss.list_of_property_values:
try:
p = o.get_child(str(pv.property_identifier), auto_discover=0)
except ENoSuchName:
if DEBUG:
print "COV NOTIFICATION ENOSUCHNAME"
# This can happen if the property we are refering to is
# not instantiated (because it isn't polled/monitored/not-of-
# interest. Example: We are only monitoring present-value
# property, but not status-flags. Ignore for now.
else:
p.cov_notif_processing(pv.value, pid, time_remaining)
return simple_ack_pdu(msg)
def server_read_property_multiple(device, msg):
request = tag.decode(msg.data)
if DEBUG:
print "SERVER READ PROPERTY MULTIPLE request: ", request
results = []
# convert request into a list of read access specifications
ss = sequence.context_read_access_specification_list(request)
o = None
p = None
if DEBUG:
print "SERVER READ PROPERTY sequence: ", ss
# device.time_rpm.begin()
for s in ss:
o = device.find_bacnet_object(s.object_identifier)
if DEBUG:
print "SERVER READ PROPERTY object: ", o
result = sequence.ReadAccessResult()
result.object_identifier = s.object_identifier
props = []
for spec in s.list_of_specs:
prop_result = sequence._ReadPropertyMultipleResult()
prop_result.property_identifier = spec.property_identifier
i = None
if spec.property_index != OPTIONAL:
i = spec.property_index
prop_result.property_array_index = i
try:
p = o.find_property(spec.property_identifier)
prop_result.property_value = p.as_tags(i)
except:
if p:
prop_result.property_access_error = sequence.Error(2, 25) # operational error
elif o:
prop_result.property_access_error = sequence.Error(2, 32) # unknown property
else: # unkown object
prop_result.property_access_error = sequence.Error(1, 31) # unknown object
if DEBUG:
print "SERVER property_access_error: ", str(
prop_result.property_access_error
), s.object_identifier.object_type, s.object_identifier.instance_number, str(
spec.property_identifier
)
if DEBUG:
print "SERVER READ PROPERTY property: ", p
props.append(prop_result.encoding)
result.list_of_results = props
results.extend(result.encoding)
if DEBUG:
print "SERVER READ PROPERTY MULTIPLE request results: ", results
answer = complex_ack_pdu(msg, results)
# device.time_rpm.end()
return answer
def server_read_property(device, msg):
s = None
o = None
ss = None
p = None
try:
#device.time_rp.begin()
request = tag.decode(msg.data)
if DEBUG: print 'SERVER READ PROPERTY request: ', request
s = sequence.ReadPropertyRequest(decode=request.value)
if DEBUG: print 'SERVER READ PROPERTY sequence: ', s
o = device.find_bacnet_object(s.object_identifier)
if o is None: # object not found
raise ENotFound('BACnet Server Read, Object not found, Type: %d Instance: %d propID: %d' % \
(s.object_identifier.object_type,
s.object_identifier.instance_number,
s.property_identifier))
if DEBUG: print 'SERVER READ PROPERTY object: ', o
ss = s.property_identifier
if DEBUG: print 'ss = ', ss
p = o.find_property(ss)
if o is None: # object not found
raise ENotFound('BACnet Server Read, Prop not found, Type: %d Instance: %d propID: %d' % \
(s.object_identifier.object_type,
s.object_identifier.instance_number,
s.property_identifier))
if DEBUG: print 'SERVER READ PROPERTY property: ', p
i = None
answer = sequence.ReadPropertyACK()
if s.property_array_index != OPTIONAL:
if DEBUG: print '_bacnet.serverreadproperty ', s.property_array_index
i = s.property_array_index
answer.property_array_index = i
if DEBUG: print i
answer.object_identifier = s.object_identifier
answer.property_identifier = s.property_identifier
answer.property_value = p.as_tags(i) #this is where we retrieve the value from the node
answer = complex_ack_pdu(msg, answer.encoding)
#device.time_rp.end()
return answer
except:
#@fixme use literals not numbers
msglog.log('mpx:bacnet',msglog.types.ERR,str(msg))
msglog.exception()
if p:
return error_pdu(msg, 2, 25) # operational-problem
if o:
return error_pdu(msg, 2, 32) # unknown-property
if s:
return error_pdu(msg, 1, 31) # unknown-object
return error_pdu(msg, 2, 0) # other
def _read_property_multiple_g3(device, properties, timeout=3.0, **keywords):
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 14
rp.data = array.array("c")
for prop in properties:
object = prop[0]
instance = prop[1]
property = prop[2]
objID = tag.Context(0, data.BACnetObjectIdentifier(object, instance))
if isinstance(property, types.TupleType):
tags = []
for pid in property: # loop through list of properties
if isinstance(pid, types.TupleType): # may have index
if len(pid) > 1: # index
tags.append(tag.Context(0, data.encode_enumerated(pid[0])))
tags.append(tag.Context(1, data.encode_unsigned_integer(pid[1])))
continue
pid = pid[0] # doen't need to be tuple
tags.append(tag.Context(0, data.encode_enumerated(pid)))
propID = tag.Construct(1, tags) # frame it in contruct tags
else:
if len(prop) < 4 or prop[3] == -1:
propID = tag.Construct(1, [tag.Context(0, data.encode_enumerated(property))])
else:
arrayidx = prop[3]
propID = tag.Construct(
1,
[
tag.Context(0, data.encode_enumerated(property)),
tag.Context(1, data.encode_unsigned_integer(arrayidx)),
],
)
rp.data.fromstring(objID.encoding)
rp.data.fromstring(propID.encoding)
# return rp
if DEBUG:
for c in rp.data:
print hex(ord(c)), " ",
print ""
if keywords.has_key("callback"):
keywords["callback"].callback(_read_property_multiple_callback)
network.send_request(device, rp, timeout, **keywords)
return keywords["callback"] # used as flag
request_id = network.send_request(device, rp, timeout)
r = recv_response(request_id, timeout)
responses = tag.decode(r.data)
return sequence.context_read_access_result_list(responses)
def _read_property_multiple_g3(device, properties, timeout=3.0, **keywords):
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 14
rp.data = array.array('c')
for prop in properties:
object = prop[0]
instance = prop[1]
property = prop[2]
objID = tag.Context(0,data.BACnetObjectIdentifier(object,instance))
if isinstance(property, types.TupleType):
tags = []
for pid in property: #loop through list of properties
if isinstance(pid, types.TupleType): #may have index
if len(pid) > 1: #index
tags.append(tag.Context(0, data.encode_enumerated(pid[0])))
tags.append(tag.Context(1, data.encode_unsigned_integer(pid[1])))
continue
pid = pid[0] #doen't need to be tuple
tags.append(tag.Context(0,data.encode_enumerated(pid)))
propID = tag.Construct(1,tags) #frame it in contruct tags
else:
if len(prop) < 4 or prop[3] == -1:
propID = tag.Construct(
1,[tag.Context(0,data.encode_enumerated(property))]
)
else:
arrayidx = prop[3]
propID = tag.Construct(
1,[tag.Context(0, data.encode_enumerated(property)),
tag.Context(1, data.encode_unsigned_integer(arrayidx))]
)
rp.data.fromstring(objID.encoding)
rp.data.fromstring(propID.encoding)
#return rp
if DEBUG:
for c in rp.data:
print hex(ord(c)),' ',
print ''
if keywords.has_key('callback'):
keywords['callback'].callback(_read_property_multiple_callback)
network.send_request(device, rp, timeout, **keywords)
return keywords['callback'] #used as flag
request_id = network.send_request(device, rp, timeout)
r = recv_response(request_id, timeout)
responses = tag.decode(r.data)
return sequence.context_read_access_result_list(responses)
def server_write_property_multiple(device, msg):
request = tag.decode(msg.data)
if DEBUG: print 'SERVER WRITE PROPERTY MULTIPLE request: ', request
results = None
#convert request into a list of read access specifications
ss = sequence.context_write_access_specification_list(request)
o = None
p = None
if DEBUG: print 'SERVER WRITE PROPERTY sequence: ', ss
for s in ss: #do each write access specification
o = device.find_bacnet_object(s.object_identifier)
if DEBUG: print 'SERVER WRITE PROPERTY object: ', o
for pv in s.list_of_properties:
i = None
if pv.property_array_index != OPTIONAL:
i = pv.property_array_index
priority = None
if pv.priority != OPTIONAL:
priority = pv.priority
try:
p = o.find_property(pv.property_identifier)
p.write(pv.value, i, priority) #index?
except EPermission:
if DEBUG: print 'SERVER WRITE PROPERTY EPERMISSION ERROR'
result = sequence.WritePropertyMultipleError()
result.error_type = sequence.Error(2,40) #write access denied
bopr = BACnetObjectPropertyReference()
bopr.object_identifier = s.object_identifier
bopr.property_identifier = pv.property_identifier
bopr.property_index = pv.property_array_index
result.first_failed_write_attempt = bopr
return complex_ack_pdu(result.encoding)
except:
if DEBUG: print 'SERVER WRITE PROPERTY ERROR'
result = sequence.WritePropertyMultipleError()
if p:
result.error_type = sequence.Error(2,25) #operational error
elif o:
result.error_type = sequence.Error(2,32) #unknown property
else: #unkown object
result.error_type = sequence.Error(1,31) #unknown object
bopr = BACnetObjectPropertyReference()
bopr.object_identifier = s.object_identifier
bopr.property_identifier = pv.property_identifier
bopr.property_index = pv.property_array_index
result.first_failed_write_attempt = bopr
return complex_ack_pdu(result.encoding)
if DEBUG: print 'SERVER WRITE PROPERTY property: ', p
return simple_ack_pdu(msg)
def server_write_property(device, msg):
try:
# device.time_wp.begin()
request = tag.decode(msg.data)
if DEBUG:
print "SERVER WRITE PROPERTY request: ", request
s = sequence.WritePropertyRequest(decode=request.value)
if DEBUG:
print "SERVER WRITE PROPERTY sequence: ", s
o = device.find_bacnet_object(s.object_identifier)
if o is None: # object not found
raise ENotFound(
"BACnet Server Write, Object not found, Type: %d Instance: %d propID: %d"
% (s.object_identifier.object_type, s.object_identifier.instance_number, s.property_identifier)
)
if DEBUG:
print "SERVER WRITE PROPERTY object: ", o
p = o.find_property(s.property_identifier)
if p is None: # object not found
raise ENotFound(
"BACnet Server Write Prop not found, Type: %d Instance: %d propID: %d"
% (s.object_identifier.object_type, s.object_identifier.instance_number, s.property_identifier)
)
if DEBUG:
print "SERVER WRITE PROPERTY property: ", p
priority = None
if s.priority != OPTIONAL:
priority = s.priority
i = None
if s.property_array_index != OPTIONAL:
i = s.property_array_index
if DEBUG:
print "SERVER WRITE PROPERTY value: ", s.property_value[0].value, priority
p.write(s.property_value, i, priority)
answer = simple_ack_pdu(msg)
# device.time_wp.end()
return answer
except EPermission:
if DEBUG:
print "Permission error on write propety"
return error_pdu(msg, 2, 40)
except:
msglog.exception()
if DEBUG:
print "ERROR on Write Property"
print "device: ", str(device)
return error_pdu(msg, 2, 0)
def cov_notification_msg(server_device, msg, confirmed):
notif = tag.decode(msg.data)
if DEBUG: print 'COV NOTIFICATION: ', notif
#convert request into a list of cov specifications
ss = sequence.CovNotification(decode=notif.value)
if DEBUG: print 'COV NOTIFICATION sequence: ', ss
pid = ss.pid
if DEBUG: print 'COV NOTIFICATION pid: ', pid
device_id = ss.device_identifier.instance_number
if DEBUG: print 'COV NOTIFICATION device_id: ', device_id
time_remaining = ss.time_remaining
if DEBUG: print 'COV NOTIFICATION time_remaining: ', time_remaining
if _device_table.has_key(device_id):
device = _device_table[device_id]
else:
# Unknown device.
return error_pdu(msg, 5, 25)
try:
if device.node is None:
dnode = as_node('/services/network/BACnet/internetwork/Devices/' + str(device_id))
device.node = dnode
o = device.node.as_node((str(ss.object_identifier.object_type)) \
+ '/'+ (str(ss.object_identifier.instance_number)))
except:
return error_pdu(msg, 5, 25)
if DEBUG: print 'COV NOTIFICATION object: ', o
for pv in ss.list_of_property_values:
try:
p = o.get_child(str(pv.property_identifier), auto_discover=0)
except ENoSuchName:
if DEBUG: print 'COV NOTIFICATION ENOSUCHNAME'
# This can happen if the property we are refering to is
# not instantiated (because it isn't polled/monitored/not-of-
# interest. Example: We are only monitoring present-value
# property, but not status-flags. Ignore for now.
else:
p.cov_notif_processing(pv.value, pid, time_remaining)
return simple_ack_pdu(msg)
def server_read_property_multiple(device, msg):
request = tag.decode(msg.data)
if DEBUG: print 'SERVER READ PROPERTY MULTIPLE request: ', request
results = []
#convert request into a list of read access specifications
ss = sequence.context_read_access_specification_list(request)
o = None
p = None
if DEBUG: print 'SERVER READ PROPERTY sequence: ', ss
#device.time_rpm.begin()
for s in ss:
o = device.find_bacnet_object(s.object_identifier)
if DEBUG: print 'SERVER READ PROPERTY object: ', o
result = sequence.ReadAccessResult()
result.object_identifier = s.object_identifier
props = []
for spec in s.list_of_specs:
prop_result = sequence._ReadPropertyMultipleResult()
prop_result.property_identifier = spec.property_identifier
i = None
if spec.property_index != OPTIONAL:
i = spec.property_index
prop_result.property_array_index = i
try:
p = o.find_property(spec.property_identifier)
prop_result.property_value = p.as_tags(i)
except:
if p:
prop_result.property_access_error = sequence.Error(2,25) #operational error
elif o:
prop_result.property_access_error = sequence.Error(2,32) #unknown property
else: #unkown object
prop_result.property_access_error = sequence.Error(1,31) #unknown object
if DEBUG: print 'SERVER property_access_error: ', str(prop_result.property_access_error), \
s.object_identifier.object_type, s.object_identifier.instance_number, \
str(spec.property_identifier)
if DEBUG: print 'SERVER READ PROPERTY property: ', p
props.append(prop_result.encoding)
result.list_of_results = props
results.extend(result.encoding)
if DEBUG: print 'SERVER READ PROPERTY MULTIPLE request results: ', results
answer = complex_ack_pdu(msg, results)
#device.time_rpm.end()
return answer
def server_write_property(device, msg):
try:
#device.time_wp.begin()
request = tag.decode(msg.data)
if DEBUG: print 'SERVER WRITE PROPERTY request: ', request
s = sequence.WritePropertyRequest(decode=request.value)
if DEBUG: print 'SERVER WRITE PROPERTY sequence: ', s
o = device.find_bacnet_object(s.object_identifier)
if o is None: # object not found
raise ENotFound('BACnet Server Write, Object not found, Type: %d Instance: %d propID: %d' % \
(s.object_identifier.object_type,
s.object_identifier.instance_number,
s.property_identifier))
if DEBUG: print 'SERVER WRITE PROPERTY object: ', o
p = o.find_property(s.property_identifier)
if p is None: # object not found
raise ENotFound('BACnet Server Write Prop not found, Type: %d Instance: %d propID: %d' % \
(s.object_identifier.object_type,
s.object_identifier.instance_number,
s.property_identifier))
if DEBUG: print 'SERVER WRITE PROPERTY property: ', p
priority = None
if s.priority != OPTIONAL:
priority = s.priority
i = None
if s.property_array_index != OPTIONAL:
i = s.property_array_index
if DEBUG: print 'SERVER WRITE PROPERTY value: ', s.property_value[0].value, priority
p.write(s.property_value, i, priority)
answer = simple_ack_pdu(msg)
#device.time_wp.end()
return answer
except EPermission:
if DEBUG:
print 'Permission error on write propety'
return error_pdu(msg, 2, 40)
except:
msglog.exception()
if DEBUG:
print 'ERROR on Write Property'
print 'device: ', str(device)
return error_pdu(msg, 2, 0)
def read_property(device, prop):
object = prop[0]
instance = prop[1]
property = prop[2]
arrayidx = None
if len(prop) > 3:
arrayidx = prop[3]
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 12
objID = tag.Context(0, data.BACnetObjectIdentifier(object, instance))
propID = tag.Context(1, data.encode_enumerated(property))
rp.data = objID.encoding + propID.encoding
if arrayidx is not None and arrayidx != -1:
rp.data = rp.data + tag.Context(2, data.encode_unsigned_integer(arrayidx)).encoding
request_id = network.send_request(device, rp)
r = recv_response(request_id)
response = tag.decode(r.data)
return response
def read_property(device, prop):
object = prop[0]
instance = prop[1]
property = prop[2]
arrayidx = None
if len(prop) > 3 :
arrayidx = prop[3]
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 12
objID = tag.Context(0,data.BACnetObjectIdentifier(object,instance))
propID = tag.Context(1,data.encode_enumerated(property))
rp.data = objID.encoding + propID.encoding
if arrayidx is not None and arrayidx != -1:
rp.data = rp.data + \
tag.Context(2,data.encode_unsigned_integer(arrayidx)).\
encoding
request_id = network.send_request(device, rp)
r = recv_response(request_id)
response = tag.decode(r.data)
return response
def read_private_object_list(device, vendor, object_type, start_index=0):
"""##
# Return a list of lists of object names and identifiers.
# @param device address number, vendor number, object type number.
# @return A list, each element of which is a list with the first item an object name,
# the second item a BacnetObjectIndentifier object."""
results = []
identifier_list = []
answer = []
last_instance = 0
max_tags = 0
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 18 # ConfirmedPrivateTransferRequest
rp.data = array.array("c")
vendorID = tag.Context(0, data.encode_unsigned_integer(vendor))
service = tag.Context(1, data.encode_unsigned_integer(0x81))
instanceTag = tag.Construct(
2,
[
tag.Context(0, data.encode_unsigned_integer(object_type)),
tag.Context(1, data.encode_unsigned_integer(start_index)),
tag.Context(2, data.encode_unsigned_integer(50)),
],
)
rp.data.fromstring(vendorID.encoding)
rp.data.fromstring(service.encoding)
rp.data.fromstring(instanceTag.encoding)
request_id = network.send_request(device, rp)
r = recv_response(request_id)
responses = tag.decode(r.data)
for response in responses.value:
# Now if we felt like it, we could extract the BACnetIdentifierObject from
# the response data, at response.number 0. But we won't because
# we don't need it at the moment.
if response.number == 2: # context 2 contains instance tag replay parameters
# reply parameters list.
for p in response.value:
# we could match tag 0 with requested object type
if p.number == 1:
# last Instance retrieved
last_instance = data.BACnetObjectIdentifier(decode=p.data).instance_number
if p.number == 2:
# Max tags returned. If equals 50, ask for more
max_tags = ord(p.data)
if p.number == 3: # yet another open context
# Identifier list
for i in p.value:
if i.number == 4: # this is the bacnet object identifier
# bnoi = data.data_decode_bacnet_object_identifier(i.data)
bnoi = data.BACnetObjectIdentifier(decode=i.data)
# finially we get to add one to the list
identifier_list.append(bnoi)
# tag 5 would be theNVMTag, whatever that is
# tag 6 would be the VMTag
# now create a read property multiple to request all the names of these collected id's
properties = []
if len(identifier_list) > 0:
for id in identifier_list:
properties.append([object_type, id.instance_number, 77])
try:
answer = read_property_multiple(device, properties)
except BACnetError, e:
# @fixme Remove after we figure out the error.
print e.npdu
raise e
if len(answer) != len(identifier_list):
raise BACnetException("Identifier list and answer list are different lengths")
for i in range(len(identifier_list)):
results.append(
[
device,
identifier_list[i].object_type,
identifier_list[i].instance_number,
answer[i][0].character_string,
]
)
if max_tags == 50:
results = results.append(read_private_object_list(device, vendor, object_type, last_instance))
def read_private_object_list(device, vendor, object_type, start_index=0):
"""##
# Return a list of lists of object names and identifiers.
# @param device address number, vendor number, object type number.
# @return A list, each element of which is a list with the first item an object name,
# the second item a BacnetObjectIndentifier object."""
results = []
identifier_list = []
answer = []
last_instance = 0
max_tags = 0
rp = APDU()
rp.pdu_type = BACNET_CONFIRMED_SERVICE_REQUEST_PDU
rp.choice = 18 #ConfirmedPrivateTransferRequest
rp.data = array.array('c')
vendorID = tag.Context(0,data.encode_unsigned_integer(vendor))
service = tag.Context(1,data.encode_unsigned_integer(0x81))
instanceTag = tag.Construct(2,[
tag.Context(0,data.encode_unsigned_integer(object_type)),
tag.Context(1,data.encode_unsigned_integer(start_index)),
tag.Context(2,data.encode_unsigned_integer(50))])
rp.data.fromstring(vendorID.encoding)
rp.data.fromstring(service.encoding)
rp.data.fromstring(instanceTag.encoding)
request_id = network.send_request(device, rp)
r = recv_response(request_id)
responses = tag.decode(r.data)
for response in responses.value:
# Now if we felt like it, we could extract the BACnetIdentifierObject from
# the response data, at response.number 0. But we won't because
# we don't need it at the moment.
if response.number == 2: #context 2 contains instance tag replay parameters
# reply parameters list.
for p in response.value:
# we could match tag 0 with requested object type
if p.number == 1:
# last Instance retrieved
last_instance = data.BACnetObjectIdentifier(decode=p.data).instance_number
if p.number == 2:
# Max tags returned. If equals 50, ask for more
max_tags = ord(p.data)
if p.number == 3: #yet another open context
# Identifier list
for i in p.value:
if i.number == 4: #this is the bacnet object identifier
# bnoi = data.data_decode_bacnet_object_identifier(i.data)
bnoi = data.BACnetObjectIdentifier(decode=i.data)
#finially we get to add one to the list
identifier_list.append(bnoi)
#tag 5 would be theNVMTag, whatever that is
#tag 6 would be the VMTag
#now create a read property multiple to request all the names of these collected id's
properties = []
if len(identifier_list) > 0:
for id in identifier_list:
properties.append([object_type,id.instance_number,77])
try:
answer = read_property_multiple(device, properties)
except BACnetError, e:
# @fixme Remove after we figure out the error.
print e.npdu
raise e
if len(answer) != len(identifier_list):
raise BACnetException('Identifier list and answer list are different lengths')
for i in range(len(identifier_list)):
results.append([device,identifier_list[i].object_type,
identifier_list[i].instance_number,
answer[i][0].character_string])
if max_tags == 50:
results = results.append(read_private_object_list(device,
vendor,
object_type,
last_instance))
