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28 commits

Author SHA1 Message Date
gthess
f7fe95ad7b
Serve stale (#159) 
- Added serve-stale functionality as described in
  draft-ietf-dnsop-serve-stale-10. `serve-expired-*` options can be used
  to configure the behavior.
- Updated cachedb to honor `serve-expired-ttl`; Fixes #107.
- Renamed statistic `num.zero_ttl` to `num.expired` as expired replies
  come with a configurable TTL value (`serve-expired-reply-ttl`).
- Fixed stats when replying with cached, cname-aliased records.
- Added missing default values for redis cachedb backend.
 2020-02-05 14:20:27 +01:00
Wouter Wijngaards
efe5c8e6be - Fix #4144: dns64 module caches wrong (negative) information. 
git-svn-id: file:///svn/unbound/trunk@4850 be551aaa-1e26-0410-a405-d3ace91eadb9
 2018-08-10 08:03:17 +00:00
Ralph Dolmans
77f78152ee - Aggressive use of NSEC implementation. Use cached NSEC records to generate 
NXDOMAIN, NODATA and positive wildcard answers.


git-svn-id: file:///svn/unbound/trunk@4522 be551aaa-1e26-0410-a405-d3ace91eadb9
 2018-02-08 13:16:36 +00:00
Wouter Wijngaards
df6fbb82be - Fix #3397: Fix that cachedb could return a partial CNAME chain. 
git-svn-id: file:///svn/unbound/trunk@4445 be551aaa-1e26-0410-a405-d3ace91eadb9
 2018-01-22 13:54:20 +00:00
Wouter Wijngaards
7afdc695fe - Fix DNSCACHE_STORE_ZEROTTL to be bigger than 0xffff. 
git-svn-id: file:///svn/unbound/trunk@4355 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-09-19 11:54:58 +00:00
Wouter Wijngaards
55d8fe2837 - use a cachedb answer even if it's "expired" when serve-expired is yes 
(patch from Jinmei Tatuya).
- trigger refetching of the answer in that case (this will bypass
  cachedb lookup)
- allow storing a 0-TTL answer from cachedb in the in-memory message
  cache when serve-expired is yes


git-svn-id: file:///svn/unbound/trunk@4353 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-09-19 09:08:29 +00:00
Wouter Wijngaards
893159454f - Adjust servfail by iterator to not store in cache when serve-expired 
is enabled, to avoid overwriting useful information there.


git-svn-id: file:///svn/unbound/trunk@4153 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-05-12 12:16:41 +00:00
Ralph Dolmans
d30ae35c62 - Do not add current time twice to TTL before ECS cache store. 
- Do not touch rrset cache after ECS cache message generation.
- Use LDNS_EDNS_CLIENT_SUBNET as default ECS opcode.


git-svn-id: file:///svn/unbound/trunk@4086 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-04-03 09:36:18 +00:00
Ralph Dolmans
b0fd814975 - Merge EDNS Client subnet implementation from feature branch into main branch, 
using new EDNS processing framework.


git-svn-id: file:///svn/unbound/trunk@4074 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-03-21 12:08:17 +00:00
Wouter Wijngaards
c010e93d4a - Fix to rename internally used types from _t to _type, because _t 
type names are reserved by POSIX.
- iana portlist update


git-svn-id: file:///svn/unbound/trunk@3989 be551aaa-1e26-0410-a405-d3ace91eadb9
 2017-01-19 10:25:41 +00:00
Wouter Wijngaards
b781f2d48d - Fix that CD flag disables DNS64 processing, returning the DNSSEC 
signed AAAA denial.


git-svn-id: file:///svn/unbound/trunk@3273 be551aaa-1e26-0410-a405-d3ace91eadb9
 2014-11-18 15:15:57 +00:00
Wouter Wijngaards
eb5e9a89c4 - Fix #558: failed prefetch lookup does not remove cached response 
but delays next prefetch (in lieu of caching a SERVFAIL).


git-svn-id: file:///svn/unbound/trunk@3111 be551aaa-1e26-0410-a405-d3ace91eadb9
 2014-04-10 13:56:16 +00:00
Wouter Wijngaards
2b90f38a70 And fix #551 REGENT to COPYRIGHT HOLDER in license in file headings. 
git-svn-id: file:///svn/unbound/trunk@3079 be551aaa-1e26-0410-a405-d3ace91eadb9
 2014-02-07 13:28:39 +00:00
Wouter Wijngaards
f1fd2b53eb - Fix for 2038, with time_t instead of uint32_t. 
git-svn-id: file:///svn/unbound/trunk@2939 be551aaa-1e26-0410-a405-d3ace91eadb9
 2013-08-20 12:23:42 +00:00
Wouter Wijngaards
773d8e3b84 Fix prefetch and stickyness. 
git-svn-id: file:///svn/unbound/trunk@2632 be551aaa-1e26-0410-a405-d3ace91eadb9
 2012-02-16 11:04:53 +00:00
Wouter Wijngaards
6dd2c0467e - Fix bug #425: unbound reports wrong TTL in reply, it reports a TTL 
that would be permissible by the RFCs but it is not the TTL in the
  cache.


git-svn-id: file:///svn/unbound/trunk@2581 be551aaa-1e26-0410-a405-d3ace91eadb9
 2012-01-10 09:42:32 +00:00
Wouter Wijngaards
5b0fd59e76 work on prefetch: store the updated results in the cache. 
git-svn-id: file:///svn/unbound/trunk@1954 be551aaa-1e26-0410-a405-d3ace91eadb9
 2010-01-08 15:59:36 +00:00
Wouter Wijngaards
45afaf3e08 nsec negative DS. 
git-svn-id: file:///svn/unbound/trunk@1289 be551aaa-1e26-0410-a405-d3ace91eadb9
 2008-10-08 10:04:27 +00:00
Wouter Wijngaards
f64778a893 memory footprint improvements. 
git-svn-id: file:///svn/unbound/trunk@778 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-11-27 15:52:41 +00:00
Wouter Wijngaards
6f49c2fe55 regional nicer, remove region-allocator. 
git-svn-id: file:///svn/unbound/trunk@697 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-10-18 20:31:43 +00:00
Wouter Wijngaards
c9107bfb1a answer non-recursive straight from cache, if possible. 
git-svn-id: file:///svn/unbound/trunk@548 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-08-27 09:53:16 +00:00
Wouter Wijngaards
272096d611 Returns and caches validated replies. 
git-svn-id: file:///svn/unbound/trunk@536 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-08-21 13:12:10 +00:00
Wouter Wijngaards
62287e64f7 Fill missing addresses for a delegation from the cache (if possible). 
git-svn-id: file:///svn/unbound/trunk@442 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-07-20 07:14:36 +00:00
Wouter Wijngaards
b03a464d58 state init3. 
git-svn-id: file:///svn/unbound/trunk@350 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-05-30 14:19:56 +00:00
Wouter Wijngaards
95d4dc2eb8 Removed CD bit flags from cache. 
git-svn-id: file:///svn/unbound/trunk@347 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-05-30 05:39:04 +00:00
Wouter Wijngaards
1a9238ca5f message lookup and copy to region. 
git-svn-id: file:///svn/unbound/trunk@343 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-05-29 10:32:11 +00:00
Wouter Wijngaards
5def8556c6 iterator and dns cache work. 
git-svn-id: file:///svn/unbound/trunk@342 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-05-25 15:28:20 +00:00
Wouter Wijngaards
c7a9776d91 - Acknowledge use of unbound-java code in iterator. Nicer readme. 
- services/cache/dns.c DNS Cache. Hybrid cache uses msgcache and
         rrset cache from module environment.
       - packed rrset key has type and class as easily accessable struct
         members. They are still kept in network format for fast msg encode.
       - dns cache find_delegation routine.


git-svn-id: file:///svn/unbound/trunk@339 be551aaa-1e26-0410-a405-d3ace91eadb9
 2007-05-25 12:02:37 +00:00