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these changes were generated with nixq 0.0.2, by running nixq ">> lib.mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix nixq ">> mdDoc[remove] Argument[keep]" --batchmode nixos/**.nix nixq ">> Inherit >> mdDoc[remove]" --batchmode nixos/**.nix two mentions of the mdDoc function remain in nixos/, both of which are inside of comments. Since lib.mdDoc is already defined as just id, this commit is a no-op as far as Nix (and the built manual) is concerned.
101 lines
3.2 KiB
Nix
101 lines
3.2 KiB
Nix
# This module defines a system-wide environment that will be
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# initialised by pam_env (that is, not only in shells).
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{ config, lib, options, pkgs, ... }:
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with lib;
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let
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cfg = config.environment;
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in
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{
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options = {
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environment.sessionVariables = mkOption {
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default = {};
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description = ''
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A set of environment variables used in the global environment.
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These variables will be set by PAM early in the login process.
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The value of each session variable can be either a string or a
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list of strings. The latter is concatenated, interspersed with
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colon characters.
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Note, due to limitations in the PAM format values may not
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contain the `"` character.
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Also, these variables are merged into
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[](#opt-environment.variables) and it is
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therefore not possible to use PAM style variables such as
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`@{HOME}`.
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'';
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inherit (options.environment.variables) type apply;
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};
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environment.profileRelativeSessionVariables = mkOption {
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type = types.attrsOf (types.listOf types.str);
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example = { PATH = [ "/bin" ]; MANPATH = [ "/man" "/share/man" ]; };
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description = ''
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Attribute set of environment variable used in the global
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environment. These variables will be set by PAM early in the
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login process.
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Variable substitution is available as described in
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{manpage}`pam_env.conf(5)`.
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Each attribute maps to a list of relative paths. Each relative
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path is appended to the each profile of
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{option}`environment.profiles` to form the content of
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the corresponding environment variable.
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Also, these variables are merged into
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[](#opt-environment.profileRelativeEnvVars) and it is
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therefore not possible to use PAM style variables such as
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`@{HOME}`.
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'';
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};
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};
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config = {
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environment.etc."pam/environment".text = let
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suffixedVariables =
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flip mapAttrs cfg.profileRelativeSessionVariables (envVar: suffixes:
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flip concatMap cfg.profiles (profile:
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map (suffix: "${profile}${suffix}") suffixes
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)
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);
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# We're trying to use the same syntax for PAM variables and env variables.
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# That means we need to map the env variables that people might use to their
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# equivalent PAM variable.
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replaceEnvVars = replaceStrings ["$HOME" "$USER"] ["@{HOME}" "@{PAM_USER}"];
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pamVariable = n: v:
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''${n} DEFAULT="${concatStringsSep ":" (map replaceEnvVars (toList v))}"'';
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pamVariables =
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concatStringsSep "\n"
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(mapAttrsToList pamVariable
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(zipAttrsWith (n: concatLists)
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[
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# Make sure security wrappers are prioritized without polluting
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# shell environments with an extra entry. Sessions which depend on
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# pam for its environment will otherwise have eg. broken sudo. In
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# particular Gnome Shell sometimes fails to source a proper
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# environment from a shell.
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{ PATH = [ config.security.wrapperDir ]; }
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(mapAttrs (n: toList) cfg.sessionVariables)
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suffixedVariables
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]));
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in ''
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${pamVariables}
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'';
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};
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}
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