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-rw-r--r--src/vpp-api/python/vpp_papi/vpp_serializer.py46
1 files changed, 32 insertions, 14 deletions
diff --git a/src/vpp-api/python/vpp_papi/vpp_serializer.py b/src/vpp-api/python/vpp_papi/vpp_serializer.py
index 9ce0287592f..ec6a06bb3d5 100644
--- a/src/vpp-api/python/vpp_papi/vpp_serializer.py
+++ b/src/vpp-api/python/vpp_papi/vpp_serializer.py
@@ -105,27 +105,42 @@ class BaseTypes(object):
class String(object):
- def __init__(self, options):
- self.name = 'string'
+ def __init__(self, name, num, options):
+ self.name = name
+ self.num = num
self.size = 1
self.length_field_packer = BaseTypes('u32')
- self.limit = options['limit'] if 'limit' in options else None
+ self.limit = options['limit'] if 'limit' in options else num
+ self.fixed = True if num else False
+ if self.fixed and not self.limit:
+ raise VPPSerializerValueError(
+ "Invalid argument length for: {}, {} maximum {}".
+ format(list, len(list), self.limit))
def pack(self, list, kwargs=None):
if not list:
+ if self.fixed:
+ return b"\x00" * self.limit
return self.length_field_packer.pack(0) + b""
- if self.limit and len(list) > self.limit:
+ if self.limit and len(list) > self.limit - 1:
raise VPPSerializerValueError(
"Invalid argument length for: {}, {} maximum {}".
- format(list, len(list), self.limit))
-
- return self.length_field_packer.pack(len(list)) + list.encode('utf8')
+ format(list, len(list), self.limit - 1))
+ if self.fixed:
+ return list.encode('ascii').ljust(self.limit, b'\x00')
+ return self.length_field_packer.pack(len(list)) + list.encode('ascii')
def unpack(self, data, offset=0, result=None, ntc=False):
+ if self.fixed:
+ p = BaseTypes('u8', self.num)
+ s = p.unpack(data, offset)
+ s2 = s[0].split(b'\0', 1)[0]
+ return (s2.decode('ascii'), self.num)
+
length, length_field_size = self.length_field_packer.unpack(data,
offset)
if length == 0:
- return b'', 0
+ return '', 0
p = BaseTypes('u8', length)
x, size = p.unpack(data, offset + length_field_size)
x2 = x.split(b'\0', 1)[0]
@@ -181,10 +196,6 @@ class FixedList_u8(object):
'Invalid array length for "{}" got {}'
' expected {}'
.format(self.name, len(data[offset:]), self.num))
- if self.field_type == 'string':
- s = self.packer.unpack(data, offset)
- s2 = s[0].split(b'\0', 1)[0]
- return (s2.decode('utf-8'), self.num)
return self.packer.unpack(data, offset)
@@ -473,12 +484,19 @@ class VPPType(object):
if fieldlen == 3: # list
list_elements = f[2]
if list_elements == 0:
- p = VLAList_legacy(f_name, f_type)
+ if f_type == 'string':
+ p = String(f_name, 0, self.options)
+ else:
+ p = VLAList_legacy(f_name, f_type)
self.packers.append(p)
- elif f_type == 'u8' or f_type == 'string':
+ elif f_type == 'u8':
p = FixedList_u8(f_name, f_type, list_elements)
self.packers.append(p)
size += p.size
+ elif f_type == 'string':
+ p = String(f_name, list_elements, self.options)
+ self.packers.append(p)
+ size += p.size
else:
p = FixedList(f_name, f_type, list_elements)
self.packers.append(p)