nixpkgs/etc/default.nix

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{ config, pkgs, upstartJobs, systemPath, wrapperDir
, defaultShell, extraEtc, nixEnvVars
}:
let
optional = pkgs.lib.optional;
# !!! ugh, these files shouldn't be created here.
envConf = pkgs.writeText "environment" ''
PATH=${systemPath}/bin:${systemPath}/sbin:${pkgs.openssh}/bin
NIX_REMOTE=daemon
'' /* ${pkgs.openssh}/bin is a hack to get remote scp to work */;
pamConsoleHandlers = pkgs.writeText "console.handlers" ''
console consoledevs /dev/tty[0-9][0-9]* :[0-9]\.[0-9] :[0-9]
${pkgs.pam_console}/sbin/pam_console_apply lock logfail wait -t tty -s -c ${pamConsolePerms}
${pkgs.pam_console}/sbin/pam_console_apply unlock logfail wait -r -t tty -s -c ${pamConsolePerms}
'';
pamConsolePerms = ./security/console.perms;
in
import ../helpers/make-etc.nix {
inherit (pkgs) stdenv;
configFiles = [
{ # TCP/UDP port assignments.
source = pkgs.iana_etc + "/etc/services";
target = "services";
}
{ # IP protocol numbers.
source = pkgs.iana_etc + "/etc/protocols";
target = "protocols";
}
{ # Hostname-to-IP mappings.
source = pkgs.substituteAll {
src = ./hosts;
extraHosts = config.networking.extraHosts;
};
target = "hosts";
}
{ # Name Service Switch configuration file. Required by the C library.
source = ./nsswitch.conf;
target = "nsswitch.conf";
}
{ # Configuration file for the system logging daemon.
source = ./syslog.conf;
target = "syslog.conf";
}
{ # Friendly greeting on the virtual consoles.
source = pkgs.writeText "issue" ''
${config.services.mingetty.greetingLine}
${config.services.mingetty.helpLine}
'';
target = "issue";
}
{ # Configuration for pwdutils (login, passwd, useradd, etc.).
# You cannot login without it!
source = ./login.defs;
target = "login.defs";
}
{ # The Upstart events defined above.
source = upstartJobs + "/etc/event.d";
target = "event.d";
}
{ # Configuration for passwd and friends (e.g., hash algorithm
# for /etc/passwd).
source = ./default/passwd;
target = "default/passwd";
}
{ # Configuration for useradd.
source = pkgs.substituteAll {
src = ./default/useradd;
inherit defaultShell;
};
target = "default/useradd";
}
{ # Dhclient hooks for emitting ip-up/ip-down events.
source = pkgs.substituteAll {
src = ./dhclient-exit-hooks;
inherit (pkgs) upstart glibc;
};
target = "dhclient-exit-hooks";
}
{ # Script executed when the shell starts.
source = pkgs.substituteAll {
src = ./profile.sh;
inherit systemPath wrapperDir;
inherit (pkgs) systemKernel glibc;
timeZone = config.time.timeZone;
defaultLocale = config.i18n.defaultLocale;
inherit nixEnvVars;
};
target = "profile";
}
{ # Configuration for readline in bash.
source = ./inputrc;
target = "inputrc";
}
{ # Nix configuration.
source = pkgs.writeText "nix.conf" ''
# WARNING: this file is generated.
build-users-group = nixbld
build-max-jobs = ${toString (config.nix.maxJobs)}
build-use-chroot = ${if config.nix.useChroot then "true" else "false"}
build-chroot-dirs = /dev /proc /bin /etc
${config.nix.extraOptions}
'';
target = "nix.conf"; # will be symlinked from /nix/etc/nix/nix.conf in activate-configuration.sh.
}
]
# Configuration for ssmtp.
++ optional config.networking.defaultMailServer.directDelivery {
source = let cfg = config.networking.defaultMailServer; in pkgs.writeText "ssmtp.conf" ''
mailhub=${cfg.hostName}
${if cfg.domain != "" then "rewriteDomain=${cfg.domain}" else ""}
UseTLS=${if cfg.useTLS then "YES" else "NO"}
UseSTARTTLS=${if cfg.useSTARTTLS then "YES" else "NO"}
#Debug=YES
'';
target = "ssmtp/ssmtp.conf";
}
# Configuration file for fontconfig used to locate
# (X11) client-rendered fonts.
++ optional config.fonts.enableFontConfig {
source = pkgs.runCommand "fonts.conf"
{
fontDirectories = import ../system/fonts.nix {inherit pkgs config;};
buildInputs = [pkgs.libxslt];
inherit (pkgs) fontconfig;
}
"xsltproc --stringparam fontDirectories \"$fontDirectories\" \\
--stringparam fontconfig \"$fontconfig\" \\
${./fonts/make-fonts-conf.xsl} $fontconfig/etc/fonts/fonts.conf \\
> $out
";
target = "fonts/fonts.conf";
}
# LDAP configuration.
++ optional config.users.ldap.enable {
source = import ./ldap.conf.nix {
inherit (pkgs) writeText;
inherit config;
};
target = "ldap.conf";
}
# "sudo" configuration.
++ optional config.security.sudo.enable {
source = pkgs.runCommand "sudoers"
{ src = pkgs.writeText "sudoers-in" (config.security.sudo.configFile);
}
# Make sure that the sudoers file is syntactically valid.
# (currently disabled - NIXOS-66)
#"${pkgs.sudo}/sbin/visudo -f $src -c && cp $src $out";
"cp $src $out";
target = "sudoers";
mode = "0440";
}
# A bunch of PAM configuration files for various programs.
++ (map
(program:
let isLDAPEnabled = config.users.ldap.enable; in
{ source = pkgs.substituteAll {
src = ./pam.d + ("/" + program);
inherit (pkgs) pam_unix2 pam_console;
pam_ldap =
if isLDAPEnabled
then pkgs.pam_ldap
else "/no-such-path";
inherit (pkgs.xorg) xauth;
inherit envConf pamConsoleHandlers;
isLDAPEnabled = if isLDAPEnabled then "" else "#";
};
target = "pam.d/" + program;
}
)
[
"login"
"slim"
"su"
"sudo"
"other"
"passwd"
"shadow"
"sshd"
"useradd"
"chsh"
"common"
"common-console" # shared stuff for interactive local sessions
]
)
# List of machines for distributed Nix builds in the format expected
# by build-remote.pl.
++ optional config.nix.distributedBuilds {
source = pkgs.writeText "nix.machines"
(pkgs.lib.concatStrings (map (machine:
"${machine.sshUser}@${machine.hostName} ${machine.system} ${machine.sshKey} ${toString machine.maxJobs}\n"
) config.nix.buildMachines));
target = "nix.machines";
}
# Additional /etc files declared by Upstart jobs.
++ extraEtc;
}