mu: initial import

1 files changed, 471 insertions, 0 deletions

diff --git a/mu.nix b/mu.nix
new file mode 100644
index 000000000..bd56db4f2
--- /dev/null
+++ b/mu.nix
@@ -0,0 +1,471 @@
+# TODO maybe give RT-stuff only to group rt or sth.
+
+{ config, pkgs, ... }:
+
+let
+  lib = import ./lib { inherit pkgs; };
+
+  inherit (lib) majmin;
+in
+
+{
+  imports = [
+    <secrets/hashedPasswords.nix>
+    ./modules/exim.nix
+    ./modules/retiolum.nix
+  ];
+
+
+  services.udev.extraRules = ''
+    SUBSYSTEM=="net", ATTR{address}=="00:90:f5:da:aa:c3", NAME="en0"
+    SUBSYSTEM=="net", ATTR{address}=="a0:88:b4:1b:ae:6c", NAME="wl0"
+
+    # for jack
+    KERNEL=="rtc0", GROUP="audio"
+    KERNEL=="hpet", GROUP="audio"
+  '';
+
+
+  # hardware configuration
+  boot.initrd.luks.devices = [
+    { name = "vgmu1"; device = "/dev/sda2"; }
+  ];
+  boot.initrd.luks.cryptoModules = [ "aes" "sha512" "xts" ];
+  boot.initrd.availableKernelModules = [ "ahci" ];
+  #boot.kernelParams = [
+  #  "intel_pstate=enable"
+  #];
+  boot.kernelModules = [ "fbcon" "kvm-intel" ];
+  boot.extraModulePackages = [ ];
+
+  #boot.kernelPackages = pkgs.linuxPackages_3_17;
+
+  boot.kernel.sysctl = {
+    # Enable IPv6 Privacy Extensions
+    "net.ipv6.conf.all.use_tempaddr" = 2;
+    "net.ipv6.conf.default.use_tempaddr" = 2;
+  };
+
+  boot.extraModprobeConfig = ''
+    options kvm_intel nested=1
+  '';
+
+  fileSystems = {
+    "/" = {
+      device = "/dev/vgmu1/nixroot";
+      fsType = "ext4";
+      options = "defaults,noatime";
+    };
+    "/home" = {
+      device = "/dev/vgmu1/home";
+      options = "defaults,noatime";
+    };
+    "/boot" = {
+      device = "/dev/sda1";
+    };
+    "/tmp" = {
+      device = "tmpfs";
+      fsType = "tmpfs";
+      options = "nosuid,nodev,noatime";
+    };
+  };
+
+  swapDevices =[ ];
+
+  nix.maxJobs = 8;
+  nix.useChroot = true;
+
+  nixpkgs.config.firefox.enableAdobeFlash = true;
+  nixpkgs.config.chromium.enablePepperFlash = true;
+
+  nixpkgs.config.allowUnfree = true;
+  hardware.opengl.driSupport32Bit = true;
+
+  hardware.pulseaudio.enable = true;
+
+  hardware.enableAllFirmware = true;
+
+  # Use the gummiboot efi boot loader.
+  boot.loader.gummiboot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  networking.hostName = "mu";
+  #networking.wireless.enable = true;
+  networking.networkmanager.enable = true;
+
+  networking.extraHosts = ''
+  '';
+
+  #system.activationScripts.powertopTunables =
+  #  ''
+  #    #echo 1 > /sys/module/snd_hda_intel/parameters/power_save
+  #    echo 1500 > /proc/sys/vm/dirty_writeback_centisecs
+  #    (cd /sys/bus/pci/devices
+  #      for i in *; do
+  #        echo auto > $i/power/control # defaults to 'on'
+  #      done)
+  #    # TODO maybe do this via udev or systemd
+  #    #   ref https://wiki.archlinux.org/index.php/Wake-on-LAN
+  #    # disable wol this cannot find ethtool
+  #    # TODO (cd /sys/class/net
+  #    # TODO   for i in *; do
+  #    # TODO     if ethtool $i | grep -q Wake-on &&
+  #    # TODO         ! ethtool $i | grep -q 'Wake-on: d'; then
+  #    # TODO       ethtool -s $i wol d
+  #    # TODO     fi
+  #    # TODO   done)
+  #    ${pkgs.ethtool}/sbin/ethtool -s en0 wol d
+  #  '';
+
+  environment.systemPackages = with pkgs; [
+    slock
+    tinc
+    iptables
+    vim
+    gimp
+    xsane
+    firefoxWrapper
+    chromiumDev
+    skype
+    libreoffice
+    kde4.l10n.de
+    kde4.networkmanagement
+    pidgin-with-plugins
+    pidginotr
+
+    kde4.print_manager
+    #foomatic_filters
+    #gutenprint
+    #cups_pdf_filter
+    #ghostscript
+  ];
+
+
+  environment.etc."vim/vimrc".text = ''
+    set nocp
+  '';
+  environment.etc."vim/vim${majmin pkgs.vim.version}".source =
+      "${pkgs.vim}/share/vim/vim${majmin pkgs.vim.version}";
+
+  # multiple-definition-problem when defining environment.variables.EDITOR
+  environment.extraInit = ''
+    EDITOR=vim
+  '';
+  environment.variables.VIM = "/etc/vim";
+
+  i18n.defaultLocale = "de_DE.UTF-8";
+
+  environment.shellAliases = {
+    # alias cal='cal -m3'
+    bc = "bc -q";
+    gp = "gp -q";
+    df = "df -h";
+    du = "du -h";
+    # alias grep='grep --color=auto'
+
+    # TODO alias cannot contain #\'
+    # "ps?" = "ps ax | head -n 1;ps ax | fgrep -v ' grep --color=auto ' | grep";
+
+    # alias la='ls -lA'
+    lAtr = "ls -lAtr";
+    # alias ll='ls -l'
+    ls = "ls -h --color=auto --group-directories-first";
+    # alias vim='vim -p'
+    # alias vi='vim'
+    # alias view='vim -R'
+    dmesg = "dmesg -L --reltime";
+  };
+
+
+  programs.bash = {
+    interactiveShellInit = ''
+      HISTCONTROL='erasedups:ignorespace'
+      HISTSIZE=65536
+      HISTFILESIZE=$HISTSIZE
+
+      shopt -s checkhash
+      shopt -s histappend histreedit histverify
+      shopt -s no_empty_cmd_completion
+      complete -d cd
+
+      # TODO source bridge
+    '';
+    promptInit = ''
+      case $UID in
+        0)
+          PS1='\[\e[1;31m\]\w\[\e[0m\] '
+          ;;
+        1337)
+          PS1='\[\e[1;32m\]\w\[\e[0m\] '
+          ;;
+        2000)
+          PS1='\[\e[1;32m\]\w\[\e[0m\] '
+          ;;
+        *)
+          PS1='\[\e[1;35m\]\u \[\e[1;32m\]\w\[\e[0m\] '
+          ;;
+      esac
+      if test -n "$SSH_CLIENT"; then
+        PS1='\[\e[35m\]\h'" $PS1"
+      fi
+    '';
+  };
+
+
+  programs.ssh.startAgent = false;
+
+
+  security.setuidPrograms = [
+    "sendmail"  # for cron
+    "slock"
+  ];
+
+  security.pam.loginLimits = [
+    # for jack
+    { domain = "@audio"; item = "memlock"; type = "-"; value = "unlimited"; }
+    { domain = "@audio"; item = "rtprio"; type = "-"; value = "99"; }
+  ];
+
+  #services.haveged.enable = true;
+  #security.rngd.enable = true;
+
+  services.retiolum = {
+    enable = true;
+    hosts = /krebs/hosts;
+  };
+
+  security.rtkit.enable = false;
+  services.nscd.enable = false;
+  services.ntp.enable = false;
+  #services.dbus.enable = true; # rqd4 wpa_supplicant
+
+  services.sshd.enable = true;
+
+  # vixiecron sucks
+  services.cron.enable = false;
+  services.fcron.enable = true;
+
+  fonts.fonts = [
+    pkgs.xlibs.fontschumachermisc
+  ];
+
+  #services.logind.extraConfig = ''
+  #  HandleHibernateKey=ignore
+  #  HandleLidSwitch=ignore
+  #  HandlePowerKey=ignore
+  #  HandleSuspendKey=ignore
+  #'';
+  #services.xserver.displayManager.desktopManagerHandlesLidAndPower = true;
+
+  # Enable the OpenSSH daemon.
+  services.openssh = {
+    enable = true;
+    hostKeys = [
+      # XXX bits here make no science
+      { bits = 8192; type = "ed25519"; path = "/etc/ssh/ssh_host_ed25519_key"; }
+    ];
+  };
+
+  # Enable CUPS to print documents.
+  # services.printing.enable = true;
+  services.printing = {
+    enable = true;
+    #drivers = [
+    #  #pkgs.foomatic_filters
+    #  #pkgs.gutenprint
+    #  #pkgs.cups_pdf_filter
+    #  #pkgs.ghostscript
+    #];
+    #cupsdConf = ''
+    #  LogLevel debug2
+    #'';
+  };
+
+  # Enable the X11 windowing system.
+  services.xserver.enable = true;
+  #services.xserver.display = 11;
+  #services.xserver.tty = 11;
+  services.xserver.layout = "de";
+  services.xserver.xkbOptions = "eurosign:e";
+
+  # TODO this is host specific
+  services.xserver.synaptics = {
+    enable = true;
+    twoFingerScroll = true;
+    #accelFactor = "0.035";
+    #additionalOptions = ''
+    #  Option "FingerHigh" "60"
+    #  Option "FingerLow"  "60"
+    #'';
+  };
+
+  services.xserver.desktopManager.kde4.enable = true;
+  services.xserver.displayManager.auto = {
+    enable = true;
+    user = "vv";
+  };
+
+  users.defaultUserShell = "/run/current-system/sw/bin/bash";
+  users.mutableUsers = false;
+  users.extraGroups =
+    {
+    };
+  users.extraUsers =
+    {
+      tv = {
+        uid = 1337;
+        name = "tv";
+        group = "users";
+        home = "/home/tv";
+        useDefaultShell = true;
+        extraGroups = [
+          "audio"
+          "video"
+          "wheel"
+        ];
+        createHome = true;
+      };
+
+      vv = {
+        uid = 2000;
+        name = "vv";
+        home = "/home/vv";
+        createHome = true;
+        group = "users";
+        useDefaultShell = true;
+        extraGroups = [
+          "audio"
+          "video"
+          "networkmanager"
+        ];
+      };
+    };
+
+  services.journald.extraConfig = ''
+    SystemMaxUse=1G
+    RuntimeMaxUse=128M
+  '';
+
+  # see tmpfiles.d(5)
+  systemd.tmpfiles.rules = [
+    "d /tmp 1777 root root - -" # does this work with mounted /tmp?
+  ];
+
+  # TODO services.smartd
+  # TODO services.statsd
+  # TODO services.tor
+  # TODO write arandr
+  # TODO what does system.copySystemConfiguration (we need some kind of bku scheme)
+  # TODO systemd.timers instead of cron(??)
+
+  virtualisation.libvirtd.enable = true;
+
+  #
+  # iptables
+  #
+  networking.firewall.enable = false;
+  system.activationScripts.iptables =
+    let
+      log = false;
+      when = c: f: if c then f else "";
+    in
+      ''
+        ip4tables() { ${pkgs.iptables}/sbin/iptables "$@"; }
+        ip6tables() { ${pkgs.iptables}/sbin/ip6tables "$@"; }
+        ipXtables() { ip4tables "$@"; ip6tables "$@"; }
+
+        #
+        # nat
+        #
+
+        # reset tables
+        ipXtables -t nat -F
+        ipXtables -t nat -X
+
+        #
+        ipXtables -t nat -A PREROUTING -j REDIRECT ! -i retiolum -p tcp --dport ssh --to-ports 0
+        ipXtables -t nat -A PREROUTING -j REDIRECT -p tcp --dport 11423 --to-ports ssh
+
+        #
+        # filter
+        #
+
+        # reset tables
+        ipXtables -P INPUT DROP
+        ipXtables -P FORWARD DROP
+        ipXtables -F
+        ipXtables -X
+
+        # create custom chains
+        ipXtables -N Retiolum
+
+        # INPUT
+        ipXtables -A INPUT -j ACCEPT -m conntrack --ctstate RELATED,ESTABLISHED
+        ipXtables -A INPUT -j ACCEPT -i lo
+        ipXtables -A INPUT -j ACCEPT -p tcp --dport ssh -m conntrack --ctstate NEW
+        ipXtables -A INPUT -j ACCEPT -p tcp --dport http -m conntrack --ctstate NEW
+        ipXtables -A INPUT -j ACCEPT -p tcp --dport tinc -m conntrack --ctstate NEW
+        ipXtables -A INPUT -j ACCEPT -p tcp --dport smtp -m conntrack --ctstate NEW
+        ipXtables -A INPUT -j Retiolum -i retiolum
+        ${when log "ipXtables -A INPUT -j LOG --log-level info --log-prefix 'INPUT DROP '"}
+
+        # FORWARD
+        ${when log "ipXtables -A FORWARD -j LOG --log-level info --log-prefix 'FORWARD DROP '"}
+
+        # Retiolum
+        ip4tables -A Retiolum -j ACCEPT -p icmp --icmp-type echo-request
+        ip6tables -A Retiolum -j ACCEPT -p ipv6-icmp -m icmp6 --icmpv6-type echo-request
+
+
+        ${when log "ipXtables -A Retiolum -j LOG --log-level info --log-prefix 'REJECT '"}
+        ipXtables -A Retiolum -j REJECT -p tcp --reject-with tcp-reset
+        ip4tables -A Retiolum -j REJECT -p udp --reject-with icmp-port-unreachable
+        ip4tables -A Retiolum -j REJECT        --reject-with icmp-proto-unreachable
+        ip6tables -A Retiolum -j REJECT -p udp --reject-with icmp6-port-unreachable
+        ip6tables -A Retiolum -j REJECT
+
+      '';
+
+
+
+
+  #system.replaceRuntimeDependencies = with pkgs;
+  #  let
+  #      bashVulnPatches = [
+  #        (fetchurl {
+  #          url = "mirror://gnu/bash/bash-4.2-patches/bash42-048";
+  #          sha256 = "091xk1ms7ycnczsl3fx461gjhj69j6ycnfijlymwj6mj60ims6km";
+  #        })
+  #        (fetchurl {
+  #          url = "file:///etc/nixos/bash-20140926.patch";
+  #          sha256 = "0gdwnimsbi4vh5l46krss4wjrgbch94skn4y2w3rpvb1w4jypha4";
+  #        })
+  #      ];
+  #  in
+  #  [
+  #    {
+  #      original = bash;
+  #      replacement = pkgs.lib.overrideDerivation bash (oldAttrs: {
+  #        patches = oldAttrs.patches ++ bashVulnPatches;
+  #      });
+  #    }
+  #    {
+  #      original = bashInteractive;
+  #      replacement = pkgs.lib.overrideDerivation bashInteractive (oldAttrs: {
+  #        patches = oldAttrs.patches ++ bashVulnPatches;
+  #      });
+  #    }
+  #    {
+  #      original = bitlbee;
+  #      replacement = pkgs.lib.overrideDerivation bitlbee (oldAttrs: {
+  #        configureFlags = [
+  #          "--gcov=1"
+  #          "--otr=1"
+  #          "--ssl=gnutls"
+  #        ];
+  #      });
+  #    }
+  #];
+
+
+}