Bob Halley
35b89fca89
If we're looking up the address of a nameserver who's name is a
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subdomain of the query domain, tell the ADB to start looking at "." if
it doesn't know the address. This keeps us from getting stuck if the
nameserver is beneath the zone cut and we don't know its address
(e.g. because the A record has expired). By restarting from ".", we
ensure that any missing glue will be reestablished.
Misc. DNSSEC validation groundwork.
2000-01-06 00:56:18 +00:00
Michael Graff
733b16eb0b
priority rendering
1999-12-22 03:22:59 +00:00
Michael Graff
58aaab3687
isc_stdtime_get() now returns void, not isc_result_t.
1999-12-16 23:29:07 +00:00
Michael Graff
440be4c866
move util.h to <isc/util.h>
1999-12-16 22:24:22 +00:00
Michael Graff
607dc8013a
make dispatcher hash sizes be primes, and provide an increment to help
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resolve hash collisions
1999-12-15 17:14:52 +00:00
Bob Halley
4a3ad0da97
IPv6 query flood suppression
1999-12-14 00:10:06 +00:00
Bob Halley
525cdd36b3
exponential backoff on retransmission
1999-12-13 22:30:55 +00:00
Andreas Gustafsson
211e0a6fc2
the TC bit was only checked in messages that ended
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prematurely; it should be checked always
1999-12-10 17:31:08 +00:00
Michael Graff
6149906644
ipv6 changes
1999-12-04 01:27:44 +00:00
Bob Halley
7ce4b963eb
Increase quota limits for dispatchers.
1999-12-01 00:35:28 +00:00
Bob Halley
e7cdf5a35c
Cancelation of TCP queries while they were still connecting was broken, and
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would cause seg faults.
Do not update the RTT if a query is being canceled due to internal failures.
Some servers generate badly formatted responses when they get an EDNS
query. We were marking these servers as bad, but a more practical
solution is to retry without EDNS. If a message fails to parse due to
DNS_R_FORMERR or DNS_R_UNEXPECTEDEND, and we were using EDNS, we now
retry the query without EDNS.
Add a "default" case to the message parsing error switch. This prevents bad
things from happening if message parsing fails in a nontypical way.
1999-11-30 20:57:05 +00:00
Bob Halley
65a17ce1f3
eliminate special A6 processing; more comments
1999-11-24 23:24:11 +00:00
Bob Halley
86a30f8262
don't core dump if we get an upwards referral
1999-11-24 00:34:01 +00:00
Bob Halley
91d0c4e268
post-review cleanups
1999-11-23 20:54:20 +00:00
Bob Halley
502dac3e7f
revise shutdown process
1999-11-22 19:57:17 +00:00
Michael Graff
42fe494186
Minor API change. The 'factor' now ranges from 0..10. See adb.h for details.
1999-11-19 00:30:13 +00:00
Bob Halley
3d3a9152d8
EDNS support.
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TCP support.
1999-11-16 21:07:13 +00:00
Bob Halley
edee9a8a12
If we discover a server is broken for a zone, don't talk to it for 10
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minutes.
1999-11-05 20:16:45 +00:00
Bob Halley
61b103daed
RTT support
1999-11-05 09:50:52 +00:00
Bob Halley
a2cc581af9
enable processing of type 3 nodata/nxdomain
1999-11-04 19:39:16 +00:00
Bob Halley
3165855ecf
Do not treat a negative cache entry as "the answer" if we've already got
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the answer due to CNAME/DNAME chaining.
Do not try to make a negative cache entry if we've chained outside of the
query domain.
1999-11-04 18:38:14 +00:00
Bob Halley
9736378f29
dns_resolver_createfetch() now logs the name and type of the fetch.
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Move most tracing to debug level 3.
1999-11-03 19:56:47 +00:00
Bob Halley
77b9650eb1
Improve response caching logic.
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First try at handling type 3 negative replies.
1999-11-03 03:19:17 +00:00
Bob Halley
fea89edbab
Using AF_INET6 when creating an IPv6 socket helps a lot!
1999-11-02 00:56:49 +00:00
Bob Halley
9b82e777d5
Turn off debugging code that sets the TTL of additional data to very
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small values.
1999-10-31 22:02:40 +00:00
Bob Halley
77ab7ec58e
clear ADDRWAIT on timeout
1999-10-31 20:36:05 +00:00
Bob Halley
5d397cd3a9
set adb options based on supported network protocols
1999-10-30 03:40:54 +00:00
Bob Halley
cbf4007b0b
checkpoint
1999-10-29 21:48:10 +00:00
Michael Graff
897c9ddb4d
implement dns_adb_cancelfind(), rename _done() to _destroyfind(), and _lookup to _createfind()
1999-10-29 18:00:31 +00:00
Mark Andrews
90adbb5f1c
Remove various "enumerated type mixed with another type" warnings.
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More still to be removed.
#define ISC_TF(x) to covert logical result to isc_boolean_t
1999-10-29 12:56:58 +00:00
Bob Halley
d4adf00b63
adb support
1999-10-29 03:30:49 +00:00
Michael Graff
3a19eddcc7
start at port 5353, and try up to port 5399. This is so both Andreas and I
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can run things on the same machine. :)
1999-10-29 00:14:02 +00:00
Bob Halley
3894acca89
lint
1999-10-28 01:37:43 +00:00
Bob Halley
7b87e35d02
use dns_view_findzonecut()
1999-10-27 00:44:24 +00:00
Bob Halley
5fda368652
supress glue, except when needed
1999-10-25 21:19:54 +00:00
Bob Halley
6fe8621e7f
convert tracing into debug logging
1999-10-22 19:32:49 +00:00
Bob Halley
f1962da938
Add fctx_stopidletimer().
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Remove some remnants of the old locking system.
Prep work for future calls to DNSSEC validation.
Misc. cleanups.
1999-10-20 19:20:48 +00:00
Bob Halley
1646ae97bc
add dns_resolver_cancelfetch
1999-10-20 01:57:05 +00:00
Bob Halley
000ee57965
Deal with DNS_R_UNCHANGED cases, where we've tried to add data to the cache
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but have found that the cache contents are better.
1999-10-19 19:52:56 +00:00
Bob Halley
de13dac233
handle negative answers with CNAME/DNAME chains
1999-10-19 02:33:42 +00:00
Bob Halley
b500110b22
preliminary DNAME support
1999-10-18 21:05:49 +00:00
Bob Halley
fcddaadc8e
CNAME support in positive answers.
1999-10-17 19:21:43 +00:00
Bob Halley
692cae8634
The authority section wasn't being marked for caching.
1999-10-16 20:34:04 +00:00
Bob Halley
3706171484
Partially working negative caching.
1999-10-16 00:48:34 +00:00
Bob Halley
9ad0ebf65e
Start dealing with the DNS_R_UNCHANGED case when adding rdatasets.
1999-10-15 20:51:19 +00:00
Bob Halley
df0453520c
checkpoint
1999-10-15 01:43:04 +00:00
Bob Halley
0340a9c05a
checkpoint
1999-10-13 02:08:30 +00:00
Bob Halley
01b523fe60
checkpoint: basic referrals
1999-10-12 20:39:35 +00:00
Bob Halley
eba3ad47e7
checkpoint: basic answer processing and caching
1999-10-11 19:24:28 +00:00
Brian Wellington
3f6dc1703f
tsig structure/function name change
1999-10-08 18:37:24 +00:00
