Implement IPv4-Embedded addresses according to RFC6052. #402
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The original algorithm assumed that any prefix length would be valid and did not skip over bits 64 to 71 and set them to zero. This means that only dns64 prefixes with length 32 and 96 generated embedded addresses according to RFC6052, cf. Figure 1 in 2.2.
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I tried my best to match the surrounding code style but I might not have fully understood how the code is supposed to be formatted. |
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This generates the same result as the examples in Table 1. https://tools.ietf.org/html/rfc6052#section-2.4 |
wcawijngaards
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Jan 15, 2021
- Merge #402 from fobser: Implement IPv4-Embedded addresses according to RFC6052.
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Thanks for the fixup! The code was contributed, and I think your formatting looks fine. |
jedisct1
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Jan 20, 2021
* nlnet/master: (33 commits) rpl tests for nsid example.conf.in entry for nsid - Fix declaration before statement and signed comparison warning in dns64. - Fix NLnetLabs#404: DNS query with small edns bufsize fail. Changelog entry for NLnetLabs#402. - Merge NLnetLabs#402 from fobser: Implement IPv4-Embedded addresses according to RFC6052. Implement IPv4-Embedded addresses according to RFC6052. - Fix for NLnetLabs#93: dynlibmodule import library is named libunbound.dll.a. - Fix for NLnetLabs#93: dynlibmodule link fix for Windows. Nicer changelog note for NLnetLabs#399 - Merge NLnetLabs#399 from xiangbao227: The lock of lruhash table should unlocked after markdel entry. Changelog note for NLnetLabs#399 - Merge NLnetLabs#399 from xiangbao227: The function rrset_cache_touch can touch an entry to the lru while markdelling the entry in lruhash_remove. I found that in function lruhash_remove, table was locked at first ,then lru_remove the entry , then unlock the table, and then markdel entry , but in function rrset_cache_touch , the entry will be touched to lru again before markdelling entry in function lruhash_remove. This is a bug! And man page documentation for them. - Fix so local zone types always_nodata and always_deny can be used from the config file. - Fix NLnetLabs#397: [Feature request] add new type always_null to local-zone similar to always_nxdomain. - Fix clang analysis warning. - Add comment documentation. - For NLnetLabs#391: more double casts in python start time calculation. - For NLnetLabs#391: fix indentation. - For NLnetLabs#391: use struct timeval* start_time for callback information. Changelog note for NLnetLabs#391 - Merge PR NLnetLabs#391 from fhriley: Add start_time to reply callbacks so modules can compute the response time. ...
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The original algorithm assumed that any prefix length would be valid
and did not skip over bits 64 to 71 and set them to zero.
This means that only dns64 prefixes with length 32 and 96 generated
embedded addresses according to RFC6052, cf. Figure 1 in 2.2.