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Signed-off-by: Ralph Boehme <slow@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Nov 27 10:07:18 UTC 2020 on sn-devel-184
Regression introduced by commit 4b54e14b7c,
where the number of returned records is not set by talloc_array_length
when the record is not found.
Found by DELL EMC at SDC SMB3 plugfest trying to perform a secure DNS
update.
Signed-off-by: Samuel Cabrero <scabrero@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Samuel Cabrero <scabrero@samba.org>
Autobuild-Date(master): Fri Nov 8 12:31:30 UTC 2019 on sn-devel-184
The loop prevention should only be done for CNAME records!
Otherwise we truncate the answer records for A, AAAA or
SRV queries, which is a bad idea if you have more than 20 DCs.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13600
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Autobuild-User(master): Andrew Bartlett <abartlet@samba.org>
Autobuild-Date(master): Tue Dec 4 08:52:29 CET 2018 on sn-devel-144
Count number of answers generated by internal DNS query routine and stop at
20 to match Microsoft's loop prevention mechanism.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13600
Signed-off-by: Aaron Haslett <aaronhaslett@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Andreas Schneider <asn@cryptomilk.org>
Autobuild-Date(master): Fri Jun 1 14:05:56 CEST 2018 on sn-devel-144
This skips adding the DNS option for a larger UDP packet size than
512. This is a different fix for bug 9632.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Jeremy Allison <jra@samba.org>
Fix picky developer clang warning about assignment
of an enum value to a variable of a different enum type.
Signed-off-by: Uri Simchoni <uri@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Add support for dns wildcard records. i.e. if the following records
exist
exact.samba.example.com 3600 A 1.1.1.1
*.samba.example.com 3600 A 1.1.1.2
look up on exact.samba.example.com will return 1.1.1.1
look up on *.samba.example.com will return 1.1.1.2
look up on other.samba.example.com will return 1.1.1.2
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12952
Signed-off-by: Marc Muehlfeld <mmuehlfeld@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Autobuild-User(master): Marc Muehlfeld <mmuehlfeld@samba.org>
Autobuild-Date(master): Wed Jul 26 21:34:48 CEST 2017 on sn-devel-144
This avoids using gensec_update_ev() with a nested event loop.
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
This can be used for logging and for Kerberos channel bindings
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Pair-Programmed-by: Gary Lockyer <gary@catalyst.net.nz>
Signed-off-by: Gary Lockyer <gary@catalyst.net.nz>
This allows a secondary DNS forwarder for a trivial failover. Requests
which fail/timeout at the primary DNS forwarder will be restarted
entirely with the next forwarder in the list.
Signed-off-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
From RFC 1035:
3.3.14. TXT RDATA format
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
/ TXT-DATA /
+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+
where:
TXT-DATA One or more <character-string>s.
TXT RRs are used to hold descriptive text. The semantics of the text
depends on the domain where it is found.
Each record contains an array of strings instead of just one string.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11128
BUG: https://bugzilla.samba.org/show_bug.cgi?id=11686
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Garming Sam <garming@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Kai Blin <kai@samba.org>
Autobuild-User(master): Kai Blin <kai@samba.org>
Autobuild-Date(master): Tue Dec 15 17:50:32 CET 2015 on sn-devel-104
By making sure that the answers are always allocated, we don't have
to pass an explicit mem_ctx anymore
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Kai Blin <kai@samba.org>
This puts the talloc_realloc into add_response_rr instead of before
create_response_rr. It is a bit less efficient, but as we do not expect
hundreds of answers, I think this code is a bit easier to understand.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Kai Blin <kai@samba.org>
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Autobuild-User(master): Ralph Böhme <slow@samba.org>
Autobuild-Date(master): Fri Aug 7 12:57:02 CEST 2015 on sn-devel-104
Both tevent_req_werror and tevent_req_done call tevent_req_finish on a request.
This should not be done. We should only call either of both.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>
Signed-off-by: Kai Blin <kai@samba.org>
Reviewed-by: Andreas Schneider <asn@samba.org>
Autobuild-User(master): Kai Blin <kai@samba.org>
Autobuild-Date(master): Thu Aug 6 14:06:52 CEST 2015 on sn-devel-104
recs[i].wtype is == DNS_TYPE_CNAME, and my understanding of the union is that
data.cname is filled. We get away with this, because ipv4 and ipv6 have the
same char * representation, but it's confusing.
Signed-off-by: Volker Lendecke <vl@samba.org>
Reviewed-by: Ira Cooper <ira@samba.org>
Autobuild-User(master): Volker Lendecke <vl@samba.org>
Autobuild-Date(master): Tue Aug 4 13:41:17 CEST 2015 on sn-devel-104
DNS queries for records with the wrong type need to trigger an empty
response with RCODE_OK instead of returning NXDOMAIN.
This adds a test and fixes bug #10471
Signed-off-by: Kai Blin <kai@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
Due to an oversight, the internal DNS server supports MX record updates,
but not MX record queries. Add support for MX queries and tests.
This should fix bug #9485
Signed-off-by: Kai Blin <kai@samba.org>
Reviewed-By: Amitay Isaacs <amitay@gmail.com>
I've pushed the wrong branch for this, sorry about that.
Autobuild-User(master): Kai Blin <kai@samba.org>
Autobuild-Date(master): Wed Sep 5 14:10:54 CEST 2012 on sn-devel-104
This stops us from potentially being DoSed by tons of TKEYs
Autobuild-User(master): Kai Blin <kai@samba.org>
Autobuild-Date(master): Fri Aug 31 22:46:01 CEST 2012 on sn-devel-104
