diff options
Diffstat (limited to 'tools/net/ynl/lib/nlspec.py')
| -rw-r--r-- | tools/net/ynl/lib/nlspec.py | 91 |
1 files changed, 77 insertions, 14 deletions
diff --git a/tools/net/ynl/lib/nlspec.py b/tools/net/ynl/lib/nlspec.py index d04450c2a44a..a0241add3839 100644 --- a/tools/net/ynl/lib/nlspec.py +++ b/tools/net/ynl/lib/nlspec.py @@ -90,8 +90,8 @@ class SpecEnumEntry(SpecElement): def raw_value(self): return self.value - def user_value(self): - if self.enum_set['type'] == 'flags': + def user_value(self, as_flags=None): + if self.enum_set['type'] == 'flags' or as_flags: return 1 << self.value else: return self.value @@ -136,10 +136,10 @@ class SpecEnumSet(SpecElement): return True return False - def get_mask(self): + def get_mask(self, as_flags=None): mask = 0 for e in self.entries.values(): - mask += e.user_value() + mask += e.user_value(as_flags) return mask @@ -149,8 +149,11 @@ class SpecAttr(SpecElement): Represents a single attribute type within an attr space. Attributes: - value numerical ID when serialized - attr_set Attribute Set containing this attr + value numerical ID when serialized + attr_set Attribute Set containing this attr + is_multi bool, attr may repeat multiple times + struct_name string, name of struct definition + sub_type string, name of sub type """ def __init__(self, family, attr_set, yaml, value): super().__init__(family, yaml) @@ -158,6 +161,9 @@ class SpecAttr(SpecElement): self.value = value self.attr_set = attr_set self.is_multi = yaml.get('multi-attr', False) + self.struct_name = yaml.get('struct') + self.sub_type = yaml.get('sub-type') + self.byte_order = yaml.get('byte-order') class SpecAttrSet(SpecElement): @@ -214,22 +220,61 @@ class SpecAttrSet(SpecElement): return self.attrs.items() +class SpecStructMember(SpecElement): + """Struct member attribute + + Represents a single struct member attribute. + + Attributes: + type string, type of the member attribute + """ + def __init__(self, family, yaml): + super().__init__(family, yaml) + self.type = yaml['type'] + + +class SpecStruct(SpecElement): + """Netlink struct type + + Represents a C struct definition. + + Attributes: + members ordered list of struct members + """ + def __init__(self, family, yaml): + super().__init__(family, yaml) + + self.members = [] + for member in yaml.get('members', []): + self.members.append(self.new_member(family, member)) + + def new_member(self, family, elem): + return SpecStructMember(family, elem) + + def __iter__(self): + yield from self.members + + def items(self): + return self.members.items() + + class SpecOperation(SpecElement): """Netlink Operation Information about a single Netlink operation. Attributes: - value numerical ID when serialized, None if req/rsp values differ + value numerical ID when serialized, None if req/rsp values differ - req_value numerical ID when serialized, user -> kernel - rsp_value numerical ID when serialized, user <- kernel - is_call bool, whether the operation is a call - is_async bool, whether the operation is a notification - is_resv bool, whether the operation does not exist (it's just a reserved ID) - attr_set attribute set name + req_value numerical ID when serialized, user -> kernel + rsp_value numerical ID when serialized, user <- kernel + is_call bool, whether the operation is a call + is_async bool, whether the operation is a notification + is_resv bool, whether the operation does not exist (it's just a reserved ID) + attr_set attribute set name + fixed_header string, optional name of fixed header struct - yaml raw spec as loaded from the spec file + yaml raw spec as loaded from the spec file """ def __init__(self, family, yaml, req_value, rsp_value): super().__init__(family, yaml) @@ -241,6 +286,7 @@ class SpecOperation(SpecElement): self.is_call = 'do' in yaml or 'dump' in yaml self.is_async = 'notify' in yaml or 'event' in yaml self.is_resv = not self.is_async and not self.is_call + self.fixed_header = self.yaml.get('fixed-header', family.fixed_header) # Added by resolve: self.attr_set = None @@ -281,6 +327,7 @@ class SpecFamily(SpecElement): msgs_by_value dict of all messages (indexed by name) ops dict of all valid requests / responses consts dict of all constants/enums + fixed_header string, optional name of family default fixed header struct """ def __init__(self, spec_path, schema_path=None): with open(spec_path, "r") as stream: @@ -344,6 +391,9 @@ class SpecFamily(SpecElement): def new_attr_set(self, elem): return SpecAttrSet(self, elem) + def new_struct(self, elem): + return SpecStruct(self, elem) + def new_operation(self, elem, req_val, rsp_val): return SpecOperation(self, elem, req_val, rsp_val) @@ -351,6 +401,7 @@ class SpecFamily(SpecElement): self._resolution_list.append(elem) def _dictify_ops_unified(self): + self.fixed_header = self.yaml['operations'].get('fixed-header') val = 1 for elem in self.yaml['operations']['list']: if 'value' in elem: @@ -362,6 +413,7 @@ class SpecFamily(SpecElement): self.msgs[op.name] = op def _dictify_ops_directional(self): + self.fixed_header = self.yaml['operations'].get('fixed-header') req_val = rsp_val = 1 for elem in self.yaml['operations']['list']: if 'notify' in elem: @@ -392,6 +444,15 @@ class SpecFamily(SpecElement): self.msgs[op.name] = op + def find_operation(self, name): + """ + For a given operation name, find and return operation spec. + """ + for op in self.yaml['operations']['list']: + if name == op['name']: + return op + return None + def resolve(self): self.resolve_up(super()) @@ -399,6 +460,8 @@ class SpecFamily(SpecElement): for elem in definitions: if elem['type'] == 'enum' or elem['type'] == 'flags': self.consts[elem['name']] = self.new_enum(elem) + elif elem['type'] == 'struct': + self.consts[elem['name']] = self.new_struct(elem) else: self.consts[elem['name']] = elem |