Merge remote-tracking branch 'origin/master' into nix-2.0

nixos/modules/system/boot/binfmt.nix

@@ -0,0 +1,139 @@
+{ config, lib, ... }:
+let
+  inherit (lib) mkOption types optionalString;
+
+  cfg = config.boot.binfmtMiscRegistrations;
+
+  makeBinfmtLine = name: { recognitionType, offset, magicOrExtension
+                         , mask, preserveArgvZero, openBinary
+                         , matchCredentials, fixBinary, ...
+                         }: let
+    type = if recognitionType == "magic" then "M" else "E";
+    offset' = toString offset;
+    mask' = toString mask;
+    interpreter = "/run/binfmt/${name}";
+    flags = if !(matchCredentials -> openBinary)
+              then throw "boot.binfmtMiscRegistrations.${name}: you can't specify openBinary = false when matchCredentials = true."
+            else optionalString preserveArgvZero "P" +
+                 optionalString (openBinary && !matchCredentials) "O" +
+                 optionalString matchCredentials "C" +
+                 optionalString fixBinary "F";
+  in ":${name}:${type}:${offset'}:${magicOrExtension}:${mask'}:${interpreter}:${flags}";
+
+  binfmtFile = builtins.toFile "binfmt_nixos.conf"
+    (lib.concatStringsSep "\n" (lib.mapAttrsToList makeBinfmtLine cfg));
+
+  activationSnippet = name: { interpreter, ... }:
+    "ln -sf ${interpreter} /run/binfmt/${name}";
+  activationScript = ''
+    mkdir -p -m 0755 /run/binfmt
+    ${lib.concatStringsSep "\n" (lib.mapAttrsToList activationSnippet cfg)}
+  '';
+in {
+  options = {
+    boot.binfmtMiscRegistrations = mkOption {
+      default = {};
+
+      description = ''
+        Extra binary formats to register with the kernel.
+        See https://www.kernel.org/doc/html/latest/admin-guide/binfmt-misc.html for more details.
+      '';
+
+      type = types.attrsOf (types.submodule ({ config, ... }: {
+        options = {
+          recognitionType = mkOption {
+            default = "magic";
+            description = "Whether to recognize executables by magic number or extension.";
+            type = types.enum [ "magic" "extension" ];
+          };
+
+          offset = mkOption {
+            default = null;
+            description = "The byte offset of the magic number used for recognition.";
+            type = types.nullOr types.int;
+          };
+
+          magicOrExtension = mkOption {
+            description = "The magic number or extension to match on.";
+            type = types.str;
+          };
+
+          mask = mkOption {
+            default = null;
+            description =
+              "A mask to be ANDed with the byte sequence of the file before matching";
+            type = types.nullOr types.str;
+          };
+
+          interpreter = mkOption {
+            description = ''
+              The interpreter to invoke to run the program.
+
+              Note that the actual registration will point to
+              /run/binfmt/''${name}, so the kernel interpreter length
+              limit doesn't apply.
+            '';
+            type = types.path;
+          };
+
+          preserveArgvZero = mkOption {
+            default = false;
+            description = ''
+              Whether to pass the original argv[0] to the interpreter.
+
+              See the description of the 'P' flag in the kernel docs
+              for more details;
+            '';
+            type = types.bool;
+          };
+
+          openBinary = mkOption {
+            default = config.matchCredentials;
+            description = ''
+              Whether to pass the binary to the interpreter as an open
+              file descriptor, instead of a path.
+            '';
+            type = types.bool;
+          };
+
+          matchCredentials = mkOption {
+            default = false;
+            description = ''
+              Whether to launch with the credentials and security
+              token of the binary, not the interpreter (e.g. setuid
+              bit).
+
+              See the description of the 'C' flag in the kernel docs
+              for more details.
+
+              Implies/requires openBinary = true.
+            '';
+            type = types.bool;
+          };
+
+          fixBinary = mkOption {
+            default = false;
+            description = ''
+              Whether to open the interpreter file as soon as the
+              registration is loaded, rather than waiting for a
+              relevant file to be invoked.
+
+              See the description of the 'F' flag in the kernel docs
+              for more details.
+            '';
+            type = types.bool;
+          };
+        };
+      }));
+    };
+  };
+
+  config = lib.mkIf (cfg != {}) {
+    environment.etc."binfmt.d/nixos.conf".source = binfmtFile;
+    system.activationScripts.binfmt = activationScript;
+    systemd.additionalUpstreamSystemUnits =
+      [ "proc-sys-fs-binfmt_misc.automount"
+        "proc-sys-fs-binfmt_misc.mount"
+      ];
+  };
+}

nixos/modules/system/boot/kernel.nix

@@ -5,7 +5,7 @@ with lib;
 let
 
   inherit (config.boot) kernelPatches;
-
+  inherit (config.boot.kernel) features;
   inherit (config.boot.kernelPackages) kernel;
 
   kernelModulesConf = pkgs.writeText "nixos.conf"
@@ -21,11 +21,25 @@ in
 
   options = {
 
+    boot.kernel.features = mkOption {
+      default = {};
+      example = literalExample "{ debug = true; }";
+      internal = true;
+      description = ''
+        This option allows to enable or disable certain kernel features.
+        It's not API, because it's about kernel feature sets, that
+        make sense for specific use cases. Mostly along with programs,
+        which would have separate nixos options.
+        `grep features pkgs/os-specific/linux/kernel/common-config.nix`
+      '';
+    };
+
     boot.kernelPackages = mkOption {
       default = pkgs.linuxPackages;
       apply = kernelPackages: kernelPackages.extend (self: super: {
         kernel = super.kernel.override {
           kernelPatches = super.kernel.kernelPatches ++ kernelPatches;
+          features = lib.recursiveUpdate super.kernel.features features;
         };
       });
       # We don't want to evaluate all of linuxPackages for the manual
@@ -170,7 +184,7 @@ in
       [ "loglevel=${toString config.boot.consoleLogLevel}" ] ++
       optionals config.boot.vesa [ "vga=0x317" ];
 
-    boot.kernel.sysctl."kernel.printk" = config.boot.consoleLogLevel;
+    boot.kernel.sysctl."kernel.printk" = mkDefault config.boot.consoleLogLevel;
 
     boot.kernelModules = [ "loop" "atkbd" ];
 

nixos/modules/system/boot/networkd.nix

@@ -94,7 +94,7 @@ let
   checkNetwork = checkUnitConfig "Network" [
     (assertOnlyFields [
       "Description" "DHCP" "DHCPServer" "IPForward" "IPMasquerade" "IPv4LL" "IPv4LLRoute"
-      "LLMNR" "MulticastDNS" "Domains" "Bridge" "Bond"
+      "LLMNR" "MulticastDNS" "Domains" "Bridge" "Bond" "IPv6PrivacyExtensions"
     ])
     (assertValueOneOf "DHCP" ["both" "none" "v4" "v6"])
     (assertValueOneOf "DHCPServer" boolValues)
@@ -104,6 +104,7 @@ let
     (assertValueOneOf "IPv4LLRoute" boolValues)
     (assertValueOneOf "LLMNR" boolValues)
     (assertValueOneOf "MulticastDNS" boolValues)
+    (assertValueOneOf "IPv6PrivacyExtensions" ["yes" "no" "prefer-public" "kernel"])
   ];
 
   checkAddress = checkUnitConfig "Address" [
@@ -700,7 +701,6 @@ in
 
     systemd.additionalUpstreamSystemUnits = [
       "systemd-networkd.service" "systemd-networkd-wait-online.service"
-      "org.freedesktop.network1.busname"
     ];
 
     systemd.network.units = mapAttrs' (n: v: nameValuePair "${n}.link" (linkToUnit n v)) cfg.links

nixos/modules/system/boot/plymouth.nix

@@ -10,7 +10,7 @@ let
 
   breezePlymouth = pkgs.breeze-plymouth.override {
     nixosBranding = true;
-    nixosVersion = config.system.nixosRelease;
+    nixosVersion = config.system.nixos.release;
   };
 
   themesEnv = pkgs.buildEnv {

nixos/modules/system/boot/resolved.nix

@@ -126,7 +126,7 @@ in
   config = mkIf cfg.enable {
 
     systemd.additionalUpstreamSystemUnits = [
-      "systemd-resolved.service" "org.freedesktop.resolve1.busname"
+      "systemd-resolved.service"
     ];
 
     systemd.services.systemd-resolved = {

nixos/modules/system/boot/stage-1-init.sh

@@ -167,6 +167,7 @@ done
 # Load the required kernel modules.
 mkdir -p /lib
 ln -s @modulesClosure@/lib/modules /lib/modules
+ln -s @modulesClosure@/lib/firmware /lib/firmware
 echo @extraUtils@/bin/modprobe > /proc/sys/kernel/modprobe
 for i in @kernelModules@; do
     echo "loading module $(basename $i)..."

nixos/modules/system/boot/stage-1.nix

@@ -13,12 +13,14 @@ let
 
   kernelPackages = config.boot.kernelPackages;
   modulesTree = config.system.modulesTree;
+  firmware = config.hardware.firmware;
 
 
   # Determine the set of modules that we need to mount the root FS.
   modulesClosure = pkgs.makeModulesClosure {
     rootModules = config.boot.initrd.availableKernelModules ++ config.boot.initrd.kernelModules;
     kernel = modulesTree;
+    firmware = firmware;
     allowMissing = true;
   };
 

nixos/modules/system/boot/systemd.nix

@@ -14,7 +14,6 @@ let
   upstreamSystemUnits =
     [ # Targets.
       "basic.target"
-      "busnames.target"
       "sysinit.target"
       "sockets.target"
       "exit.target"
@@ -47,6 +46,7 @@ let
 
       # Consoles.
       "getty.target"
+      "getty-pre.target"
       "getty@.service"
       "serial-getty@.service"
       "console-getty.service"
@@ -63,10 +63,7 @@ let
       "systemd-logind.service"
       "autovt@.service"
       "systemd-user-sessions.service"
-      "dbus-org.freedesktop.login1.service"
       "dbus-org.freedesktop.machine1.service"
-      "org.freedesktop.login1.busname"
-      "org.freedesktop.machine1.busname"
       "user@.service"
 
       # Journal.
@@ -99,7 +96,6 @@ let
       "swap.target"
       "dev-hugepages.mount"
       "dev-mqueue.mount"
-      "proc-sys-fs-binfmt_misc.mount"
       "sys-fs-fuse-connections.mount"
       "sys-kernel-config.mount"
       "sys-kernel-debug.mount"
@@ -155,19 +151,16 @@ let
       "systemd-tmpfiles-setup-dev.service"
 
       # Misc.
-      "org.freedesktop.systemd1.busname"
       "systemd-sysctl.service"
       "dbus-org.freedesktop.timedate1.service"
       "dbus-org.freedesktop.locale1.service"
       "dbus-org.freedesktop.hostname1.service"
-      "org.freedesktop.timedate1.busname"
-      "org.freedesktop.locale1.busname"
-      "org.freedesktop.hostname1.busname"
       "systemd-timedated.service"
       "systemd-localed.service"
       "systemd-hostnamed.service"
       "systemd-binfmt.service"
       "systemd-exit.service"
+      "systemd-update-done.service"
     ]
     ++ cfg.additionalUpstreamSystemUnits;
 
@@ -182,7 +175,6 @@ let
   upstreamUserUnits =
     [ "basic.target"
       "bluetooth.target"
-      "busnames.target"
       "default.target"
       "exit.target"
       "graphical-session-pre.target"
@@ -789,8 +781,7 @@ in
 
         # Keep a persistent journal. Note that systemd-tmpfiles will
         # set proper ownership/permissions.
-        # FIXME: revert to 0700 with systemd v233.
-        mkdir -m 0750 -p /var/log/journal
+        mkdir -m 0700 -p /var/log/journal
       '';
 
     users.extraUsers.systemd-network.uid = config.ids.uids.systemd-network;
@@ -887,7 +878,7 @@ in
     systemd.targets.local-fs.unitConfig.X-StopOnReconfiguration = true;
     systemd.targets.remote-fs.unitConfig.X-StopOnReconfiguration = true;
     systemd.targets.network-online.wantedBy = [ "multi-user.target" ];
-    systemd.services.systemd-binfmt.wants = [ "proc-sys-fs-binfmt_misc.automount" ];
+    systemd.services.systemd-binfmt.wants = [ "proc-sys-fs-binfmt_misc.mount" ];
 
     # Don't bother with certain units in containers.
     systemd.services.systemd-remount-fs.unitConfig.ConditionVirtualization = "!container";