def serialize(n, value, mask, buf, offset):
if mask:
assert len(value) == len(mask)
pack_str = "!I%ds%ds" % (len(value), len(mask))
msg_pack_into(pack_str, buf, offset,
(n << 9) | (1 << 8) | (len(value) * 2), value, mask)
else:
pack_str = "!I%ds" % (len(value),)
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | len(value), value)
return struct.calcsize(pack_str)
def serialize(n, value, mask, buf, offset):
if mask:
assert len(value) == len(mask)
pack_str = "!I%ds%ds" % (len(value), len(mask))
msg_pack_into(pack_str, buf, offset,
(n << 9) | (1 << 8) | (len(value) * 2), value, mask)
else:
pack_str = "!I%ds" % (len(value),)
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | len(value), value)
return struct.calcsize(pack_str)
def _serialize_header(mod, n, buf, offset):
try:
desc = mod._oxm_field_desc(n)
value_len = desc.type.size
except KeyError:
value_len = 0
n, exp_hdr = _make_exp_hdr(mod, n)
exp_hdr_len = len(exp_hdr)
pack_str = "!I%ds" % (exp_hdr_len,)
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | (exp_hdr_len + value_len),
bytes(exp_hdr))
return struct.calcsize(pack_str)
def _serialize_header(mod, n, buf, offset):
try:
desc = mod._oxm_field_desc(n)
value_len = desc.type.size
except KeyError:
value_len = 0
n, exp_hdr = _make_exp_hdr(mod, n)
exp_hdr_len = len(exp_hdr)
pack_str = "!I%ds" % (exp_hdr_len, )
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | (exp_hdr_len + value_len),
bytes(exp_hdr))
return struct.calcsize(pack_str)
def _serialize(mod, n, value, mask, buf, offset):
n, exp_hdr = _make_exp_hdr(mod, n)
exp_hdr_len = len(exp_hdr)
value_len = len(value)
if mask:
assert value_len == len(mask)
pack_str = "!I%ds%ds%ds" % (exp_hdr_len, value_len, len(mask))
msg_pack_into(pack_str, buf, offset,
(n << 9) | (1 << 8) | (exp_hdr_len + value_len * 2),
bytes(exp_hdr), value, mask)
else:
pack_str = "!I%ds%ds" % (exp_hdr_len, value_len,)
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | (exp_hdr_len + value_len),
bytes(exp_hdr), value)
return struct.calcsize(pack_str)
def _serialize(mod, n, value, mask, buf, offset):
n, exp_hdr = _make_exp_hdr(mod, n)
exp_hdr_len = len(exp_hdr)
value_len = len(value)
if mask:
assert value_len == len(mask)
pack_str = "!I%ds%ds%ds" % (exp_hdr_len, value_len, len(mask))
msg_pack_into(pack_str, buf, offset,
(n << 9) | (1 << 8) | (exp_hdr_len + value_len * 2),
bytes(exp_hdr), value, mask)
else:
pack_str = "!I%ds%ds" % (
exp_hdr_len,
value_len,
)
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | (exp_hdr_len + value_len),
bytes(exp_hdr), value)
return struct.calcsize(pack_str)
def serialize(mod, n, value, mask, buf, offset):
exp_hdr = bytearray()
if isinstance(n, tuple):
(cls, exp_type) = n
desc = mod._oxm_field_desc(n)
assert issubclass(cls, _Experimenter)
assert isinstance(desc, cls)
assert cls is ONFExperimenter
onf_exp_hdr_pack_str = '!IH' # experimenter_id, exp_type
msg_pack_into(onf_exp_hdr_pack_str, exp_hdr, 0,
cls.experimenter_id, exp_type)
assert len(exp_hdr) == struct.calcsize(onf_exp_hdr_pack_str)
n = desc.oxm_type
assert (n >> 7) == OFPXMC_EXPERIMENTER
exp_hdr_len = len(exp_hdr)
value_len = len(value)
if mask:
assert value_len == len(mask)
pack_str = "!I%ds%ds%ds" % (exp_hdr_len, value_len, len(mask))
msg_pack_into(pack_str, buf, offset,
(n << 9) | (1 << 8) | (exp_hdr_len + value_len * 2),
bytes(exp_hdr), value, mask)
else:
pack_str = "!I%ds%ds" % (exp_hdr_len, value_len,)
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | (exp_hdr_len + value_len),
bytes(exp_hdr), value)
return struct.calcsize(pack_str)
def serialize(mod, n, value, mask, buf, offset):
exp_hdr = bytearray()
if isinstance(n, tuple):
(cls, exp_type) = n
desc = mod._oxm_field_desc(n)
assert issubclass(cls, _Experimenter)
assert isinstance(desc, cls)
assert cls is ONFExperimenter
onf_exp_hdr_pack_str = '!IH' # experimenter_id, exp_type
msg_pack_into(onf_exp_hdr_pack_str, exp_hdr, 0,
cls.experimenter_id, exp_type)
assert len(exp_hdr) == struct.calcsize(onf_exp_hdr_pack_str)
n = desc.oxm_type
assert (n >> 7) == OFPXMC_EXPERIMENTER
exp_hdr_len = len(exp_hdr)
value_len = len(value)
if mask:
assert value_len == len(mask)
pack_str = "!I%ds%ds%ds" % (exp_hdr_len, value_len, len(mask))
msg_pack_into(pack_str, buf, offset,
(n << 9) | (1 << 8) | (exp_hdr_len + value_len * 2),
bytes(exp_hdr), value, mask)
else:
pack_str = "!I%ds%ds" % (exp_hdr_len, value_len,)
msg_pack_into(pack_str, buf, offset,
(n << 9) | (0 << 8) | (exp_hdr_len + value_len),
bytes(exp_hdr), value)
return struct.calcsize(pack_str)
def _make_exp_hdr(mod, n):
exp_hdr = bytearray()
try:
desc = mod._oxm_field_desc(n)
except KeyError:
return n, exp_hdr
if isinstance(desc, _Experimenter): # XXX
(exp_id, exp_type) = n
assert desc.experimenter_id == exp_id
if isinstance(desc, OldONFExperimenter): # XXX
# XXX
# This block implements EXT-256 style experimenter OXM.
exp_hdr_pack_str = '!IH' # experimenter_id, exp_type
msg_pack_into(exp_hdr_pack_str, exp_hdr, 0, desc.experimenter_id,
desc.exp_type)
else:
assert desc.oxm_type == exp_type
exp_hdr_pack_str = '!I' # experimenter_id
msg_pack_into(exp_hdr_pack_str, exp_hdr, 0, desc.experimenter_id)
assert len(exp_hdr) == struct.calcsize(exp_hdr_pack_str)
n = desc.oxm_type
assert (n >> 7) == OFPXMC_EXPERIMENTER
return n, exp_hdr
def _make_exp_hdr(mod, n):
exp_hdr = bytearray()
try:
desc = mod._oxm_field_desc(n)
except KeyError:
return n, exp_hdr
if isinstance(desc, _Experimenter): # XXX
(exp_id, exp_type) = n
assert desc.experimenter_id == exp_id
if isinstance(desc, ONFExperimenter): # XXX
# XXX
# This block implements EXT-256 style experimenter OXM.
exp_hdr_pack_str = '!IH' # experimenter_id, exp_type
msg_pack_into(exp_hdr_pack_str, exp_hdr, 0,
desc.experimenter_id, desc.exp_type)
else:
assert desc.oxm_type == exp_type
exp_hdr_pack_str = '!I' # experimenter_id
msg_pack_into(exp_hdr_pack_str, exp_hdr, 0,
desc.experimenter_id)
assert len(exp_hdr) == struct.calcsize(exp_hdr_pack_str)
n = desc.oxm_type
assert (n >> 7) == OFPXMC_EXPERIMENTER
return n, exp_hdr
