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nixos: reduce pam files rebuilds on updates

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Before whenever environment variables changed, pam files had to be
rebuild.

This is expensive since each file needs its own sandbox set up.
This commit is contained in:
Jörg Thalheim 2021-07-28 06:28:25 +02:00
parent 3dcb36f234
commit 1645acf1d3
6 changed files with 35 additions and 37 deletions
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10
nixos/modules/config/system-environment.nix
View file

@ -65,9 +65,7 @@ in
};
config = {
system.build.pamEnvironment =
let
environment.etc."pam/environment".text = let
suffixedVariables =
flip mapAttrs cfg.profileRelativeSessionVariables (envVar: suffixes:
flip concatMap cfg.profiles (profile:
@ -98,9 +96,9 @@ in
(mapAttrs (n: toList) cfg.sessionVariables)
suffixedVariables
]));
in
pkgs.writeText "pam-environment" "${pamVariables}\n";
in ''
${pamVariables}
'';
};
}

2
nixos/modules/security/pam.nix
View file

@ -475,7 +475,7 @@ let
# Session management.
${optionalString cfg.setEnvironment ''
session required pam_env.so conffile=${config.system.build.pamEnvironment} readenv=0
session required pam_env.so conffile=/etc/pam/environment readenv=0
''}
session required pam_unix.so
${optionalString cfg.setLoginUid

2
nixos/modules/services/wayland/cage.nix
View file

@ -82,7 +82,7 @@ in {
auth required pam_unix.so nullok
account required pam_unix.so
session required pam_unix.so
session required pam_env.so conffile=${config.system.build.pamEnvironment} readenv=0
session required pam_env.so conffile=/etc/pam/environment readenv=0
session required ${pkgs.systemd}/lib/security/pam_systemd.so
'';

2
nixos/modules/services/x11/display-managers/gdm.nix
View file

@ -309,7 +309,7 @@ in
password required pam_deny.so
session required pam_succeed_if.so audit quiet_success user = gdm
session required pam_env.so conffile=${config.system.build.pamEnvironment} readenv=0
session required pam_env.so conffile=/etc/pam/environment readenv=0
session optional ${pkgs.systemd}/lib/security/pam_systemd.so
session optional pam_keyinit.so force revoke
session optional pam_permit.so

2
nixos/modules/services/x11/display-managers/lightdm.nix
View file

@ -284,7 +284,7 @@ in
password required pam_deny.so
session required pam_succeed_if.so audit quiet_success user = lightdm
session required pam_env.so conffile=${config.system.build.pamEnvironment} readenv=0
session required pam_env.so conffile=/etc/pam/environment readenv=0
session optional ${pkgs.systemd}/lib/security/pam_systemd.so
session optional pam_keyinit.so force revoke
session optional pam_permit.so

2
nixos/modules/services/x11/display-managers/sddm.nix
View file

@ -229,7 +229,7 @@ in
password required pam_deny.so
session required pam_succeed_if.so audit quiet_success user = sddm
session required pam_env.so conffile=${config.system.build.pamEnvironment} readenv=0
session required pam_env.so conffile=/etc/pam/environment readenv=0
session optional ${pkgs.systemd}/lib/security/pam_systemd.so
session optional pam_keyinit.so force revoke
session optional pam_permit.so