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Merge pull request #188009 from martiert/fido2luks

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nixos/luksroot: Support adding a list of credentials to fido2luks
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Christian Kögler 2022-09-11 07:42:57 +02:00 committed by GitHub
commit 0ea763fab6
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1 changed files with 15 additions and 3 deletions
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18
nixos/modules/system/boot/luksroot.nix
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@ -148,6 +148,7 @@ let
+ optionalString dev.bypassWorkqueues " --perf-no_read_workqueue --perf-no_write_workqueue"
+ optionalString (dev.header != null) " --header=${dev.header}";
cschange = "cryptsetup luksChangeKey ${dev.device} ${optionalString (dev.header != null) "--header=${dev.header}"}";
fido2luksCredentials = dev.fido2.credentials ++ optional (dev.fido2.credential != null) dev.fido2.credential;
in ''
# Wait for luksRoot (and optionally keyFile and/or header) to appear, e.g.
# if on a USB drive.
@ -417,7 +418,7 @@ let
}
''}
${optionalString (luks.fido2Support && (dev.fido2.credential != null)) ''
${optionalString (luks.fido2Support && fido2luksCredentials != []) ''
open_with_hardware() {
local passsphrase
@ -433,7 +434,7 @@ let
echo "Please move your mouse to create needed randomness."
''}
echo "Waiting for your FIDO2 device..."
fido2luks open${optionalString dev.allowDiscards " --allow-discards"} ${dev.device} ${dev.name} ${dev.fido2.credential} --await-dev ${toString dev.fido2.gracePeriod} --salt string:$passphrase
fido2luks open${optionalString dev.allowDiscards " --allow-discards"} ${dev.device} ${dev.name} "${builtins.concatStringsSep "," fido2luksCredentials}" --await-dev ${toString dev.fido2.gracePeriod} --salt string:$passphrase
if [ $? -ne 0 ]; then
echo "No FIDO2 key found, falling back to normal open procedure"
open_normally
@ -444,7 +445,7 @@ let
# commands to run right before we mount our device
${dev.preOpenCommands}
${if (luks.yubikeySupport && (dev.yubikey != null)) || (luks.gpgSupport && (dev.gpgCard != null)) || (luks.fido2Support && (dev.fido2.credential != null)) then ''
${if (luks.yubikeySupport && (dev.yubikey != null)) || (luks.gpgSupport && (dev.gpgCard != null)) || (luks.fido2Support && fido2luksCredentials != []) then ''
open_with_hardware
'' else ''
open_normally
@ -695,6 +696,17 @@ in
description = lib.mdDoc "The FIDO2 credential ID.";
};
credentials = mkOption {
default = [];
example = [ "f1d00200d8dc783f7fb1e10ace8da27f8312d72692abfca2f7e4960a73f48e82e1f7571f6ebfcee9fb434f9886ccc8fcc52a6614d8d2" ];
type = types.listOf types.str;
description = lib.mdDoc ''
List of FIDO2 credential IDs.
Use this if you have multiple FIDO2 keys you want to use for the same luks device.
'';
};
gracePeriod = mkOption {
default = 10;
type = types.int;