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resolved: introduce the _localdnsstub and _localdnsproxy special hostnames for 127.0.0.54 + 127.0.0.53

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Let's give these special IP addresses names. After all name resolution
is our job here.

Fixes: #23623
This commit is contained in:
Lennart Poettering
2022-11-25 17:37:30 +01:00
parent 68d449997f
commit 17f244e8f9
7 changed files with 147 additions and 12 deletions
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test/units/testsuite-75.sh
+11
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@@ -56,6 +56,17 @@ echo nameserver 10.0.3.3 10.0.3.4 | "$RESOLVCONF" -a hoge.foo.dhcp
assert_in '10.0.3.1 10.0.3.2' "$(resolvectl dns hoge)"
assert_in '10.0.3.3 10.0.3.4' "$(resolvectl dns hoge.foo)"
# Tests for _localdnsstub and _localdnsproxy
assert_in '127.0.0.53' "$(resolvectl query _localdnsstub)"
assert_in '_localdnsstub' "$(resolvectl query 127.0.0.53)"
assert_in '127.0.0.54' "$(resolvectl query _localdnsproxy)"
assert_in '_localdnsproxy' "$(resolvectl query 127.0.0.54)"
assert_in '127.0.0.53' "$(dig @127.0.0.53 _localdnsstub)"
assert_in '_localdnsstub' "$(dig @127.0.0.53 -x 127.0.0.53)"
assert_in '127.0.0.54' "$(dig @127.0.0.53 _localdnsproxy)"
assert_in '_localdnsproxy' "$(dig @127.0.0.53 -x 127.0.0.54)"
# Tests for mDNS and LLMNR settings
mkdir -p /run/systemd/resolved.conf.d
{