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message: support option fields.

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These are (probably) going away soon, but just tag them for now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2020-06-04 12:13:45 +09:30 committed by Christian Decker
parent 9992a577b4
commit e4b5679f5d
1 changed files with 25 additions and 13 deletions
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38
contrib/pyln-proto/pyln/proto/message/message.py
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@ -109,10 +109,11 @@ domain, such as within a given BOLT"""
class MessageTypeField(object):
"""A field within a particular message type or subtype"""
def __init__(self, ownername, name, fieldtype):
def __init__(self, ownername, name, fieldtype, option=None):
self.full_name = "{}.{}".format(ownername, name)
self.name = name
self.fieldtype = fieldtype
self.option = option
def missing_fields(self, fields):
"""Return this field if it's not in fields"""
@ -171,7 +172,7 @@ inherit from this too.
.format(parts))
return SubtypeType(parts[0])
def _field_from_csv(self, namespace, parts, ellipsisok=False):
def _field_from_csv(self, namespace, parts, ellipsisok=False, option=None):
"""Takes msgdata/subtypedata after first two fields
e.g. [...]timestamp_node_id_1,u32,
@ -191,19 +192,22 @@ inherit from this too.
DynamicArrayType(self,
parts[0],
basetype,
lenfield))
lenfield),
option)
lenfield.fieldtype.add_length_for(field)
elif ellipsisok and parts[2] == '...':
field = MessageTypeField(self.name, parts[0],
EllipsisArrayType(self,
parts[0], basetype))
parts[0], basetype),
option)
else:
field = MessageTypeField(self.name, parts[0],
SizedArrayType(self,
parts[0], basetype,
int(parts[2])))
int(parts[2])),
option)
else:
field = MessageTypeField(self.name, parts[0], basetype)
field = MessageTypeField(self.name, parts[0], basetype, option)
return field
@ -299,9 +303,10 @@ class MessageType(SubtypeType):
'NODE': 0x2000,
'UPDATE': 0x1000}
def __init__(self, name, value):
def __init__(self, name, value, option=None):
super().__init__(name)
self.number = self.parse_value(value)
self.option = option
def parse_value(self, value):
result = 0
@ -318,23 +323,30 @@ class MessageType(SubtypeType):
@staticmethod
def type_from_csv(parts):
"""e.g msgtype,open_channel,32"""
if len(parts) != 2:
"""e.g msgtype,open_channel,32,option_foo"""
option = None
if len(parts) == 3:
option = parts[2]
elif len(parts) < 2 or len(parts) > 3:
raise ValueError("msgtype expected 3 CSV parts, not {}"
.format(parts))
return MessageType(parts[0], parts[1])
return MessageType(parts[0], parts[1], option)
@staticmethod
def field_from_csv(namespace, parts):
"""e.g msgdata,open_channel,temporary_channel_id,byte,32"""
if len(parts) != 4:
"""e.g msgdata,open_channel,temporary_channel_id,byte,32[,opt]"""
option = None
if len(parts) == 5:
option = parts[4]
elif len(parts) != 4:
raise ValueError("msgdata expected 4 CSV parts, not {}"
.format(parts))
messagetype = namespace.get_msgtype(parts[0])
if not messagetype:
raise ValueError("unknown subtype {}".format(parts[0]))
field = messagetype._field_from_csv(namespace, parts[1:])
field = messagetype._field_from_csv(namespace, parts[1:4],
option=option)
messagetype.add_field(field)