diff mbox series

[net-next,v4,2/2] tools: ynl-gen: fix parse multi-attr enum attribute

Message ID 20230724102521.259545-3-arkadiusz.kubalewski@intel.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series tools: ynl-gen: fix parse multi-attr enum attribute | expand

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Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Clearly marked for net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 9 this patch: 9
netdev/cc_maintainers success CCed 6 of 6 maintainers
netdev/build_clang success Errors and warnings before: 9 this patch: 9
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 9 this patch: 9
netdev/checkpatch success total: 0 errors, 0 warnings, 0 checks, 49 lines checked
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Kubalewski, Arkadiusz July 24, 2023, 10:25 a.m. UTC
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>
---
 tools/net/ynl/lib/ynl.py | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

Comments

Jakub Kicinski July 24, 2023, 10:19 p.m. UTC | #1
On Mon, 24 Jul 2023 12:25:21 +0200 Arkadiusz Kubalewski wrote:
> @@ -438,7 +438,7 @@ 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)

The indentation looks messed up here, otherwise LGTM.
Kubalewski, Arkadiusz July 25, 2023, 10:22 a.m. UTC | #2
>From: Jakub Kicinski <kuba@kernel.org>
>Sent: Tuesday, July 25, 2023 12:20 AM
>
>On Mon, 24 Jul 2023 12:25:21 +0200 Arkadiusz Kubalewski wrote:
>> @@ -438,7 +438,7 @@ 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)
>
>The indentation looks messed up here, otherwise LGTM.

Yes, fixed in v5.

Thank you!
Arkadiusz

>--
>pw-bot: cr
diff mbox series

Patch

diff --git a/tools/net/ynl/lib/ynl.py b/tools/net/ynl/lib/ynl.py
index 027b1c0aecb4..3e2ade2194cd 100644
--- a/tools/net/ynl/lib/ynl.py
+++ b/tools/net/ynl/lib/ynl.py
@@ -147,6 +147,7 @@  class NlAttr:
                 format = self.get_format(m.type, m.byte_order)
                 [ decoded ] = format.unpack_from(self.raw, offset)
                 offset += format.size
+
             if m.display_hint:
                 decoded = self.formatted_string(decoded, m.display_hint)
             value[m.name] = decoded
@@ -417,8 +418,7 @@  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 +430,7 @@  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 +438,7 @@  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 +466,9 @@  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 +476,6 @@  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):