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Merge pull request #93314 from tnias/nixos_opendkim_20200717

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nixos/opendkim: systemd sandbox
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lewo 2020-09-05 08:46:19 +02:00 committed by GitHub
commit d65002aff5
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6
nixos/doc/manual/release-notes/rl-2009.xml
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@ -1059,6 +1059,12 @@ services.transmission.settings.rpc-bind-address = "0.0.0.0";
removed, as it depends on libraries from deepin.
</para>
</listitem>
<listitem>
<para>
The <literal>opendkim</literal> module now uses systemd sandboxing features
to limit the exposure of the system towards the opendkim service.
</para>
</listitem>
</itemizedlist>
</section>
</section>

30
nixos/modules/services/mail/opendkim.nix
View File

@ -129,6 +129,36 @@ in {
User = cfg.user;
Group = cfg.group;
RuntimeDirectory = optional (cfg.socket == defaultSock) "opendkim";
StateDirectory = "opendkim";
StateDirectoryMode = "0700";
ReadWritePaths = [ cfg.keyPath ];
AmbientCapabilities = [];
CapabilityBoundingSet = [];
DevicePolicy = "closed";
LockPersonality = true;
MemoryDenyWriteExecute = true;
NoNewPrivileges = true;
PrivateDevices = true;
PrivateMounts = true;
PrivateTmp = true;
PrivateUsers = true;
ProtectClock = true;
ProtectControlGroups = true;
ProtectHome = true;
ProtectHostname = true;
ProtectKernelLogs = true;
ProtectKernelModules = true;
ProtectKernelTunables = true;
ProtectSystem = "strict";
RemoveIPC = true;
RestrictAddressFamilies = [ "AF_INET" "AF_INET6 AF_UNIX" ];
RestrictNamespaces = true;
RestrictRealtime = true;
RestrictSUIDSGID = true;
SystemCallArchitectures = "native";
SystemCallFilter = [ "@system-service" "~@privileged @resources" ];
UMask = "0077";
};
};