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pam: add support for pam_gnupg

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Nick Hu 2020-09-11 01:13:53 +01:00
parent e61c9d185d
commit 948e05bb28
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1 changed files with 45 additions and 0 deletions
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45
nixos/modules/security/pam.nix
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@ -318,6 +318,42 @@ let
'';
};
gnupg = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
If enabled, pam_gnupg will attempt to automatically unlock the
user's GPG keys with the login password via
<command>gpg-agent</command>. The keygrips of all keys to be
unlocked should be written to <filename>~/.pam-gnupg</filename>,
and can be queried with <command>gpg -K --with-keygrip</command>.
Presetting passphrases must be enabled by adding
<literal>allow-preset-passphrase</literal> in
<filename>~/.gnupg/gpg-agent.conf</filename>.
'';
};
noAutostart = mkOption {
type = types.bool;
default = false;
description = ''
Don't start <command>gpg-agent</command> if it is not running.
Useful in conjunction with starting <command>gpg-agent</command> as
a systemd user service.
'';
};
storeOnly = mkOption {
type = types.bool;
default = false;
description = ''
Don't send the password immediately after login, but store for PAM
<literal>session</literal>.
'';
};
};
text = mkOption {
type = types.nullOr types.lines;
description = "Contents of the PAM service file.";
@ -386,6 +422,7 @@ let
|| cfg.enableKwallet
|| cfg.enableGnomeKeyring
|| cfg.googleAuthenticator.enable
|| cfg.gnupg.enable
|| cfg.duoSecurity.enable)) ''
auth required pam_unix.so ${optionalString cfg.allowNullPassword "nullok"} ${optionalString cfg.nodelay "nodelay"} likeauth
${optionalString config.security.pam.enableEcryptfs
@ -397,6 +434,10 @@ let
" kwalletd=${pkgs.kdeFrameworks.kwallet.bin}/bin/kwalletd5")}
${optionalString cfg.enableGnomeKeyring
"auth optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so"}
${optionalString cfg.gnupg.enable
"auth optional ${pkgs.pam_gnupg}/lib/security/pam_gnupg.so"
+ optionalString cfg.gnupg.storeOnly " store-only"
}
${optionalString cfg.googleAuthenticator.enable
"auth required ${pkgs.googleAuthenticator}/lib/security/pam_google_authenticator.so no_increment_hotp"}
${optionalString cfg.duoSecurity.enable
@ -472,6 +513,10 @@ let
" kwalletd=${pkgs.kdeFrameworks.kwallet.bin}/bin/kwalletd5")}
${optionalString (cfg.enableGnomeKeyring)
"session optional ${pkgs.gnome3.gnome-keyring}/lib/security/pam_gnome_keyring.so auto_start"}
${optionalString cfg.gnupg.enable
"session optional ${pkgs.pam_gnupg}/lib/security/pam_gnupg.so"
+ optionalString cfg.gnupg.noAutostart " no-autostart"
}
${optionalString (config.virtualisation.lxc.lxcfs.enable)
"session optional ${pkgs.lxc}/lib/security/pam_cgfs.so -c all"}
'');