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tools: ynl-gen: fix parse multi-attr enum attribute 

When attribute is enum type and marked as multi-attr, the netlink
respond is not parsed, fails with stack trace:
Traceback (most recent call last):
  File "/net-next/tools/net/ynl/./test.py", line 520, in <module>
    main()
  File "/net-next/tools/net/ynl/./test.py", line 488, in main
    dplls=dplls_get(282574471561216)
  File "/net-next/tools/net/ynl/./test.py", line 48, in dplls_get
    reply=act(args)
  File "/net-next/tools/net/ynl/./test.py", line 41, in act
    reply = ynl.dump(args.dump, attrs)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 598, in dump
    return self._op(method, vals, dump=True)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 584, in _op
    rsp_msg = self._decode(gm.raw_attrs, op.attr_set.name)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 451, in _decode
    self._decode_enum(rsp, attr_spec)
  File "/net-next/tools/net/ynl/lib/ynl.py", line 408, in _decode_enum
    value = enum.entries_by_val[raw].name
TypeError: unhashable type: 'list'
error: 1

Redesign _decode_enum(..) to take a enum int value and translate
it to either a bitmask or enum name as expected.

Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Reviewed-by: Donald Hunter <donald.hunter@gmail.com>
Link: https://lore.kernel.org/r/20230725101642.267248-3-arkadiusz.kubalewski@intel.com
Reviewed-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Arkadiusz Kubalewski 2023-07-25 12:16:42 +02:00 committed by Jakub Kicinski
parent d7ddf5f426
commit df15c15e6c
1 changed files with 6 additions and 6 deletions
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12
tools/net/ynl/lib/ynl.py
View File

@ -417,8 +417,7 @@ class YnlFamily(SpecFamily):
pad = b'\x00' * ((4 - len(attr_payload) % 4) % 4)
return struct.pack('HH', len(attr_payload) + 4, nl_type) + attr_payload + pad
def _decode_enum(self, rsp, attr_spec):
raw = rsp[attr_spec['name']]
def _decode_enum(self, raw, attr_spec):
enum = self.consts[attr_spec['enum']]
if 'enum-as-flags' in attr_spec and attr_spec['enum-as-flags']:
i = 0
@ -430,7 +429,7 @@ class YnlFamily(SpecFamily):
i += 1
else:
value = enum.entries_by_val[raw].name
rsp[attr_spec['name']] = value
return value
def _decode_binary(self, attr, attr_spec):
if attr_spec.struct_name:
@ -438,7 +437,7 @@ class YnlFamily(SpecFamily):
decoded = attr.as_struct(members)
for m in members:
if m.enum:
self._decode_enum(decoded, m)
decoded[m.name] = self._decode_enum(decoded[m.name], m)
elif attr_spec.sub_type:
decoded = attr.as_c_array(attr_spec.sub_type)
else:
@ -466,6 +465,9 @@ class YnlFamily(SpecFamily):
else:
raise Exception(f'Unknown {attr_spec["type"]} with name {attr_spec["name"]}')
if 'enum' in attr_spec:
decoded = self._decode_enum(decoded, attr_spec)
if not attr_spec.is_multi:
rsp[attr_spec['name']] = decoded
elif attr_spec.name in rsp:
@ -473,8 +475,6 @@ class YnlFamily(SpecFamily):
else:
rsp[attr_spec.name] = [decoded]
if 'enum' in attr_spec:
self._decode_enum(rsp, attr_spec)
return rsp
def _decode_extack_path(self, attrs, attr_set, offset, target):