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- Support RFC7686: handle ".onion" Special-Use Domain. It is blocked

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by default, and can be unblocked with "nodefault" localzone config.


git-svn-id: file:///svn/unbound/trunk@3593 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards 2016-01-05 14:02:45 +00:00
parent dd8b5729f2
commit 5cb0a1d8ed
4 changed files with 34 additions and 6 deletions
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2
doc/Changelog
View file

@ -1,6 +1,8 @@
05 January 2016: Wouter
- #731: tcp-mss, outgoing-tcp-mss options for unbound.conf, patch
from Daisuke Higashi.
- Support RFC7686: handle ".onion" Special-Use Domain. It is blocked
by default, and can be unblocked with "nodefault" localzone config.
04 January 2016: Wouter
- Define DEFAULT_SOURCE together with BSD_SOURCE when that is defined,

1
doc/example.conf.in
View file

@ -483,6 +483,7 @@ server:
# local-zone: "localhost." nodefault
# local-zone: "127.in-addr.arpa." nodefault
# local-zone: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa." nodefault
# local-zone: "onion." nodefault
# local-zone: "10.in-addr.arpa." nodefault
# local-zone: "16.172.in-addr.arpa." nodefault
# local-zone: "17.172.in-addr.arpa." nodefault

17
doc/unbound.conf.5.in
View file

@ -928,10 +928,10 @@ has no other effect than turning off default contents for the
given zone. Use \fInodefault\fR if you use exactly that zone, if you want to
use a subzone, use \fItransparent\fR.
.P
The default zones are localhost, reverse 127.0.0.1 and ::1, and the AS112
zones. The AS112 zones are reverse DNS zones for private use and reserved
IP addresses for which the servers on the internet cannot provide correct
answers. They are configured by default to give nxdomain (no reverse
The default zones are localhost, reverse 127.0.0.1 and ::1, the onion and
the AS112 zones. The AS112 zones are reverse DNS zones for private use and
reserved IP addresses for which the servers on the internet cannot provide
correct answers. They are configured by default to give nxdomain (no reverse
information) answers. The defaults can be turned off by specifying your
own local\-zone of that name, or using the 'nodefault' type. Below is a
list of the default zone contents.
@ -975,6 +975,15 @@ local\-data: "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.
PTR localhost."
.fi
.TP 10
\h'5'\fIonion (RFC 7686)\fR
Default content:
.nf
local\-zone: "onion." static
local\-data: "onion. 10800 IN NS localhost."
local\-data: "onion. 10800 IN
SOA localhost. nobody.invalid. 1 3600 1200 604800 10800"
.fi
.TP 10
\h'5'\fIreverse RFC1918 local use zones\fR
Reverse data for zones 10.in\-addr.arpa, 16.172.in\-addr.arpa to
31.172.in\-addr.arpa, 168.192.in\-addr.arpa.

20
services/localzone.c
View file

@ -593,9 +593,9 @@ lz_enter_defaults(struct local_zones* zones, struct config_file* cfg)
{
struct local_zone* z;
/* this list of zones is from RFC 6303 */
/* this list of zones is from RFC 6303 and RFC 7686 */
/* block localhost level zones, first, later the LAN zones */
/* block localhost level zones first, then onion and later the LAN zones */
/* localhost. zone */
if(!lz_exists(zones, "localhost.") &&
@ -653,6 +653,22 @@ lz_enter_defaults(struct local_zones* zones, struct config_file* cfg)
}
lock_rw_unlock(&z->lock);
}
/* onion. zone (RFC 7686) */
if(!lz_exists(zones, "onion.") &&
!lz_nodefault(cfg, "onion.")) {
if(!(z=lz_enter_zone(zones, "onion.", "static",
LDNS_RR_CLASS_IN)) ||
!lz_enter_rr_into_zone(z,
"onion. 10800 IN NS localhost.") ||
!lz_enter_rr_into_zone(z,
"onion. 10800 IN SOA localhost. nobody.invalid. "
"1 3600 1200 604800 10800")) {
log_err("out of memory adding default zone");
if(z) { lock_rw_unlock(&z->lock); }
return 0;
}
lock_rw_unlock(&z->lock);
}
/* if unblock lan-zones, then do not add the zones below.
* we do add the zones above, about 127.0.0.1, because localhost is