kytos /
of_core
| @@ 421-450 (lines=30) @@ | ||
| 418 | return cls(value) |
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| 419 | ||
| 420 | ||
| 421 | class MatchPBBISID(MatchField): |
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| 422 | """Match for PBB ISID.""" |
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| 423 | ||
| 424 | name = 'pbb_isid' |
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| 425 | oxm_field = OxmOfbMatchField.OFPXMT_OFB_PBB_ISID |
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| 426 | ||
| 427 | def as_of_tlv(self): |
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| 428 | """Return a pyof OXM TLV instance.""" |
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| 429 | try: |
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| 430 | value = int(self.value) |
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| 431 | mask = None |
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| 432 | oxm_hasmask = False |
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| 433 | except ValueError: |
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| 434 | value, mask = map(int, self.value.split('/')) |
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| 435 | oxm_hasmask = True |
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| 436 | value_bytes = value.to_bytes(3, 'big') |
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| 437 | if mask: |
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| 438 | value_bytes += mask.to_bytes(3, 'big') |
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| 439 | return OxmTLV(oxm_field=self.oxm_field, |
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| 440 | oxm_hasmask=oxm_hasmask, |
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| 441 | oxm_value=value_bytes) |
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| 442 | ||
| 443 | @classmethod |
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| 444 | def from_of_tlv(cls, tlv): |
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| 445 | """Return an instance from a pyof OXM TLV.""" |
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| 446 | value = int.from_bytes(tlv.oxm_value[:3], 'big') |
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| 447 | if tlv.oxm_hasmask: |
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| 448 | pbb_isid_mask = int.from_bytes(tlv.oxm_value[3:], 'big') |
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| 449 | value = f'{value}/{pbb_isid_mask}' |
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| 450 | return cls(value) |
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| 451 | ||
| 452 | ||
| 453 | class MatchFieldFactory(ABC): |
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| @@ 389-418 (lines=30) @@ | ||
| 386 | return cls(priority) |
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| 387 | ||
| 388 | ||
| 389 | class MatchIVP6FLabel(MatchField): |
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| 390 | """Match for IPV6 Flow Label.""" |
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| 391 | ||
| 392 | name = 'ipv6_flabel' |
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| 393 | oxm_field = OxmOfbMatchField.OFPXMT_OFB_IPV6_FLABEL |
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| 394 | ||
| 395 | def as_of_tlv(self): |
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| 396 | """Return a pyof OXM TLV instance.""" |
|
| 397 | try: |
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| 398 | value = int(self.value) |
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| 399 | mask = None |
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| 400 | oxm_hasmask = False |
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| 401 | except ValueError: |
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| 402 | value, mask = map(int, self.value.split('/')) |
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| 403 | oxm_hasmask = True |
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| 404 | value_bytes = value.to_bytes(4, 'big') |
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| 405 | if mask: |
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| 406 | value_bytes += mask.to_bytes(4, 'big') |
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| 407 | return OxmTLV(oxm_field=self.oxm_field, |
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| 408 | oxm_hasmask=oxm_hasmask, |
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| 409 | oxm_value=value_bytes) |
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| 410 | ||
| 411 | @classmethod |
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| 412 | def from_of_tlv(cls, tlv): |
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| 413 | """Return an instance from a pyof OXM TLV.""" |
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| 414 | value = int.from_bytes(tlv.oxm_value[:4], 'big') |
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| 415 | if tlv.oxm_hasmask: |
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| 416 | flabel_mask = int.from_bytes(tlv.oxm_value[4:], 'big') |
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| 417 | value = f'{value}/{flabel_mask}' |
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| 418 | return cls(value) |
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| 419 | ||
| 420 | ||
| 421 | class MatchPBBISID(MatchField): |
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