Simon Kelley
2dbba34b2c
DNSSEC validation tweak.
...
A zone which has at least one key with an algorithm we don't
support should be considered as insecure.
2015-12-16 13:41:58 +00:00
Simon Kelley
c2bcd1e183
Generalise RR-filtering code, for use with EDNS0.
2015-12-15 17:25:21 +00:00
Simon Kelley
d64c81fff7
Move code which caches DS records to a more logical place.
2015-12-15 16:11:06 +00:00
Simon Kelley
93be5b1e02
Abandon caching RRSIGs and returning them from cache.
...
The list of exceptions to being able to locally answer
cached data for validated records when DNSSEC data is requested
was getting too long, so don't ever do that. This means
that the cache no longer has to hold RRSIGS and allows
us to lose lots of code. Note that cached validated
answers are still returned as long as do=0
2015-12-15 12:04:40 +00:00
Simon Kelley
9a31b68b59
Major rationalisation of DNSSEC validation.
...
Much gnarly special-case code removed and replaced with correct
general implementaion. Checking of zone-status moved to DNSSEC code,
where it should be, vastly simplifying query-forwarding code.
2015-12-15 10:20:39 +00:00
Simon Kelley
67ab3285b5
Handle unknown DS hash algos correctly.
...
When we can validate a DS RRset, but don't speak the hash algo it
contains, treat that the same as an NSEC/3 proving that the DS
doesn't exist. 4025 5.2
2015-11-20 23:20:47 +00:00
Simon Kelley
6de81f1250
Handle signed dangling CNAME replies to DS queries.
2015-09-09 22:51:13 +01:00
Simon Kelley
f6381cf482
Declare utime().
2015-07-27 19:48:43 +01:00
Kevin Darbyshire-Bryant
34b5d19488
Update DNSSEC timestamp file on process TERM.
2015-07-27 19:34:23 +01:00
Simon Kelley
d389e0191b
DNSSEC fix: correct logic for signed records in unsigned DNS space.
2015-07-27 18:56:43 +01:00
Simon Kelley
d3699bb6bc
Small tweak to DNSSEC fix.
2015-07-16 22:37:37 +01:00
Simon Kelley
13480e8c2a
DNSSEC fix, signed wildcard CNAME to unsigned domain.
2015-07-16 22:23:13 +01:00
Simon Kelley
e3ec6f0bd7
Handle CNAMEs to DS records when confirming absence of DS for DNSSEC.
2015-06-12 21:39:11 +01:00
Simon Kelley
4d25cf89d5
Handle corner cases in NSEC coverage checks.
2015-06-06 23:13:57 +01:00
Simon Kelley
a77cec8d58
Handle UDP packet loss when fragmentation of large packets is broken.
2015-05-08 16:25:38 +01:00
Simon Kelley
b8f16556d3
Tweaks to previous, DNS label charset commit.
2015-04-22 21:14:31 +01:00
Simon Kelley
cbe379ad6b
Handle domain names with '.' or /000 within labels.
...
Only in DNSSEC mode, where we might need to validate or store
such names. In none-DNSSEC mode, simply don't cache these, as before.
2015-04-21 22:57:06 +01:00
Simon Kelley
fe3992f9fa
Return INSECURE, rather than BOGUS when DS proved not to exist.
...
Return INSECURE when validating DNS replies which have RRSIGs, but
when a needed DS record in the trust chain is proved not to exist.
It's allowed for a zone to set up DNSKEY and RRSIG records first, then
add a DS later, completing the chain of trust.
Also, since we don't have the infrastructure to track that these
non-validated replies have RRSIGS, don't cache them, so we don't
provide answers with missing RRSIGS from the cache.
2015-04-03 21:25:05 +01:00
Simon Kelley
394ff492da
Allow control characters in names in the cache, handle when logging.
2015-03-29 22:17:14 +01:00
Simon Kelley
1e153945de
DNSSEC fix for non-ascii characters in labels.
2015-03-28 21:34:07 +00:00
Simon Kelley
0b8a5a30a7
Protect against broken DNSSEC upstreams.
2015-03-27 11:44:55 +00:00
Simon Kelley
8805283088
Don't fail DNSSEC when a signed CNAME dangles into an unsigned zone.
2015-03-26 21:15:43 +00:00
Simon Kelley
360f2513ab
Tweak DNSSEC timestamp code to create file later, removing need to chown it.
2015-03-07 18:28:06 +00:00
Simon Kelley
9003b50b13
Fix last commit to not crash if uid changing not configured.
2015-03-02 22:47:23 +00:00
Simon Kelley
f6e62e2af9
Add --dnssec-timestamp option and facility.
2015-03-01 18:17:54 +00:00
Simon Kelley
6ef15b34ca
Fix broken ECDSA DNSSEC signatures.
2015-01-31 22:44:26 +00:00
Simon Kelley
aff3396280
Update copyrights for dawn of 2015.
2015-01-31 20:13:40 +00:00
Simon Kelley
5e321739db
Don't answer from cache RRsets from wildcards, as we don't have NSECs.
2015-01-12 23:16:56 +00:00
Simon Kelley
25cf5e373e
Add --log-queries=extra option for more complete logging.
2015-01-09 15:53:03 +00:00
Simon Kelley
97e618a0e3
DNSSEC: do top-down search for limit of secure delegation.
2015-01-07 21:55:43 +00:00
Simon Kelley
0b1008d367
Bad packet protection.
2014-12-27 15:33:32 +00:00
Simon Kelley
83d2ed09fc
Initialise return value.
2014-12-23 18:42:38 +00:00
Simon Kelley
fbc5205702
Fix problems validating NSEC3 and wildcards.
2014-12-23 15:46:08 +00:00
Simon Kelley
094b5c3d90
Fix crash in DNSSEC code when attempting to verify large RRs.
2014-12-21 16:11:52 +00:00
Simon Kelley
cdb755c5f1
Fix FTBFS with Nettle-3.0.
2014-06-18 20:52:53 +01:00
Simon Kelley
063efb330a
Build config: add -DNO_GMP for use with nettle/mini-gmp
2014-06-17 19:49:31 +01:00
Simon Kelley
e6096e643a
Another filter_rrsigs fix.
2014-05-01 18:19:12 +01:00
Simon Kelley
9d1b22aac2
Fix DNSSEC validation of ANY queries.
2014-04-29 13:02:41 +01:00
Simon Kelley
50f86ce8e4
Need to fixup records in the additional section when removing DNSSEC stuff.
2014-04-24 17:59:58 +01:00
Simon Kelley
e98bd52e25
Add --dnssec-no-timecheck
2014-03-28 20:41:23 +00:00
Simon Kelley
3f7483e816
Handle integer overflow in uid counter. Fixes rare crashes in cache code.
2014-03-16 22:56:58 +00:00
Simon Kelley
c07d30dcb1
Compiler warning.
2014-03-03 14:19:19 +00:00
Simon Kelley
8707019237
Mass edit of INSECURE->BOGUS returns for server failure/bad input.
2014-03-01 20:48:24 +00:00
Simon Kelley
1fbe4d2f5f
Tweak tuning params.
2014-03-01 20:03:47 +00:00
Simon Kelley
0575610fa1
Handle replies with no answers and no NS in validate_reply.
2014-03-01 18:07:57 +00:00
Simon Kelley
e3f1455850
Don't free blockdata for negative DS cache entries.
2014-03-01 17:58:28 +00:00
Simon Kelley
bd9b3cf55b
Fix off-by-one overwrite.
2014-03-01 16:12:28 +00:00
Simon Kelley
14db4212ab
Tidy.
2014-03-01 15:35:50 +00:00
Simon Kelley
00a5b5d477
Check that unsigned replies come from unsigned zones if --dnssec-check-unsigned set.
2014-02-28 18:10:55 +00:00
Simon Kelley
b8eac19177
Negative caching for DS records.
2014-02-27 14:30:03 +00:00
Simon Kelley