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-rw-r--r--nixos/modules/tasks/filesystems/btrfs.nix17
-rw-r--r--nixos/modules/tasks/filesystems/cifs.nix2
-rw-r--r--nixos/modules/tasks/filesystems/ext.nix2
-rw-r--r--nixos/modules/tasks/filesystems/f2fs.nix2
-rw-r--r--nixos/modules/tasks/filesystems/jfs.nix2
-rw-r--r--nixos/modules/tasks/filesystems/reiserfs.nix2
-rw-r--r--nixos/modules/tasks/filesystems/vfat.nix2
-rw-r--r--nixos/modules/tasks/filesystems/xfs.nix2
-rw-r--r--nixos/modules/tasks/filesystems/zfs.nix10
-rw-r--r--nixos/modules/tasks/network-interfaces-scripted.nix2
-rw-r--r--nixos/modules/tasks/network-interfaces-systemd.nix65
-rw-r--r--nixos/modules/tasks/network-interfaces.nix53
12 files changed, 87 insertions, 74 deletions
diff --git a/nixos/modules/tasks/filesystems/btrfs.nix b/nixos/modules/tasks/filesystems/btrfs.nix
index 82fdd6058710..87fe326c0974 100644
--- a/nixos/modules/tasks/filesystems/btrfs.nix
+++ b/nixos/modules/tasks/filesystems/btrfs.nix
@@ -52,34 +52,37 @@ in
   config = mkMerge [
     (mkIf enableBtrfs {
       system.fsPackages = [ pkgs.btrfs-progs ];
+    })
 
-      boot.initrd.kernelModules = mkIf inInitrd [ "btrfs" ];
-      boot.initrd.availableKernelModules = mkIf inInitrd (
+    (mkIf inInitrd {
+      boot.initrd.kernelModules = [ "btrfs" ];
+      boot.initrd.availableKernelModules =
         [ "crc32c" ]
         ++ optionals (config.boot.kernelPackages.kernel.kernelAtLeast "5.5") [
           # Needed for mounting filesystems with new checksums
           "xxhash_generic"
           "blake2b_generic"
           "sha256_generic" # Should be baked into our kernel, just to be sure
-        ]
-      );
+        ];
 
-      boot.initrd.extraUtilsCommands = mkIf (inInitrd && !config.boot.initrd.systemd.enable)
+      boot.initrd.extraUtilsCommands = mkIf (!config.boot.initrd.systemd.enable)
       ''
         copy_bin_and_libs ${pkgs.btrfs-progs}/bin/btrfs
         ln -sv btrfs $out/bin/btrfsck
         ln -sv btrfsck $out/bin/fsck.btrfs
       '';
 
-      boot.initrd.extraUtilsCommandsTest = mkIf (inInitrd && !config.boot.initrd.systemd.enable)
+      boot.initrd.extraUtilsCommandsTest = mkIf (!config.boot.initrd.systemd.enable)
       ''
         $out/bin/btrfs --version
       '';
 
-      boot.initrd.postDeviceCommands = mkIf (inInitrd && !config.boot.initrd.systemd.enable)
+      boot.initrd.postDeviceCommands = mkIf (!config.boot.initrd.systemd.enable)
       ''
         btrfs device scan
       '';
+
+      boot.initrd.systemd.initrdBin = [ pkgs.btrfs-progs ];
     })
 
     (mkIf enableAutoScrub {
diff --git a/nixos/modules/tasks/filesystems/cifs.nix b/nixos/modules/tasks/filesystems/cifs.nix
index 0de292a69208..837b9e19bfb9 100644
--- a/nixos/modules/tasks/filesystems/cifs.nix
+++ b/nixos/modules/tasks/filesystems/cifs.nix
@@ -21,5 +21,7 @@ in
         copy_bin_and_libs ${pkgs.cifs-utils}/sbin/mount.cifs
       '';
 
+    boot.initrd.systemd.extraBin."mount.cifs" = mkIf inInitrd "${pkgs.cifs-utils}/sbin/mount.cifs";
+
   };
 }
diff --git a/nixos/modules/tasks/filesystems/ext.nix b/nixos/modules/tasks/filesystems/ext.nix
index edc0efc55213..1c34ee2c7035 100644
--- a/nixos/modules/tasks/filesystems/ext.nix
+++ b/nixos/modules/tasks/filesystems/ext.nix
@@ -25,5 +25,7 @@ in
         ln -sv e2fsck $out/bin/fsck.ext4
       '';
 
+    boot.initrd.systemd.initrdBin = lib.mkIf inInitrd [ pkgs.e2fsprogs ];
+
   };
 }
diff --git a/nixos/modules/tasks/filesystems/f2fs.nix b/nixos/modules/tasks/filesystems/f2fs.nix
index 035784f43df8..4f99f9a57fa6 100644
--- a/nixos/modules/tasks/filesystems/f2fs.nix
+++ b/nixos/modules/tasks/filesystems/f2fs.nix
@@ -16,5 +16,7 @@ in
     boot.initrd.extraUtilsCommands = mkIf (inInitrd && !config.boot.initrd.systemd.enable) ''
       copy_bin_and_libs ${pkgs.f2fs-tools}/sbin/fsck.f2fs
     '';
+
+    boot.initrd.systemd.initrdBin = mkIf inInitrd [ pkgs.f2fs-tools ];
   };
 }
diff --git a/nixos/modules/tasks/filesystems/jfs.nix b/nixos/modules/tasks/filesystems/jfs.nix
index 6d80c4c657da..b5132b4caa33 100644
--- a/nixos/modules/tasks/filesystems/jfs.nix
+++ b/nixos/modules/tasks/filesystems/jfs.nix
@@ -15,5 +15,7 @@ in
     boot.initrd.extraUtilsCommands = mkIf (inInitrd && !config.boot.initrd.systemd.enable) ''
       copy_bin_and_libs ${pkgs.jfsutils}/sbin/fsck.jfs
     '';
+
+    boot.initrd.systemd.initrdBin = mkIf inInitrd [ pkgs.jfsutils ];
   };
 }
diff --git a/nixos/modules/tasks/filesystems/reiserfs.nix b/nixos/modules/tasks/filesystems/reiserfs.nix
index 7b017a83db84..3c6a0f0cd917 100644
--- a/nixos/modules/tasks/filesystems/reiserfs.nix
+++ b/nixos/modules/tasks/filesystems/reiserfs.nix
@@ -21,5 +21,7 @@ in
         ln -s reiserfsck $out/bin/fsck.reiserfs
       '';
 
+    boot.initrd.systemd.initrdBin = mkIf inInitrd [ pkgs.reiserfsprogs ];
+
   };
 }
diff --git a/nixos/modules/tasks/filesystems/vfat.nix b/nixos/modules/tasks/filesystems/vfat.nix
index 5421b617b43b..e535e97759b2 100644
--- a/nixos/modules/tasks/filesystems/vfat.nix
+++ b/nixos/modules/tasks/filesystems/vfat.nix
@@ -21,5 +21,7 @@ in
         ln -sv dosfsck $out/bin/fsck.vfat
       '';
 
+    boot.initrd.systemd.extraBin = mkIf inInitrd [ pkgs.dosfstools ];
+
   };
 }
diff --git a/nixos/modules/tasks/filesystems/xfs.nix b/nixos/modules/tasks/filesystems/xfs.nix
index f81f58646551..76f31e660ad3 100644
--- a/nixos/modules/tasks/filesystems/xfs.nix
+++ b/nixos/modules/tasks/filesystems/xfs.nix
@@ -26,5 +26,7 @@ in
       ''
         sed -i -e 's,^#!.*,#!'$out/bin/sh, $out/bin/fsck.xfs
       '';
+
+    boot.initrd.systemd.initrdBin = mkIf inInitrd [ pkgs.xfsprogs.bin ];
   };
 }
diff --git a/nixos/modules/tasks/filesystems/zfs.nix b/nixos/modules/tasks/filesystems/zfs.nix
index 5cf863c87f27..082634ec9d01 100644
--- a/nixos/modules/tasks/filesystems/zfs.nix
+++ b/nixos/modules/tasks/filesystems/zfs.nix
@@ -90,12 +90,17 @@ let
 
   getPoolMounts = prefix: pool:
     let
+      poolFSes = getPoolFilesystems pool;
+
       # Remove the "/" suffix because even though most mountpoints
       # won't have it, the "/" mountpoint will, and we can't have the
       # trailing slash in "/sysroot/" in stage 1.
       mountPoint = fs: escapeSystemdPath (prefix + (lib.removeSuffix "/" fs.mountPoint));
+
+      hasUsr = lib.any (fs: fs.mountPoint == "/usr") poolFSes;
     in
-      map (x: "${mountPoint x}.mount") (getPoolFilesystems pool);
+      map (x: "${mountPoint x}.mount") poolFSes
+      ++ lib.optional hasUsr "sysusr-usr.mount";
 
   getKeyLocations = pool: if isBool cfgZfs.requestEncryptionCredentials then {
     hasKeys = cfgZfs.requestEncryptionCredentials;
@@ -632,7 +637,8 @@ in
           targets.zfs-import.wantedBy = [ "zfs.target" ];
           targets.zfs.wantedBy = [ "initrd.target" ];
           extraBin = {
-            # zpool and zfs are already in thanks to fsPackages
+            zpool = "${cfgZfs.package}/sbin/zpool";
+            zfs = "${cfgZfs.package}/sbin/zfs";
             awk = "${pkgs.gawk}/bin/awk";
           };
         };
diff --git a/nixos/modules/tasks/network-interfaces-scripted.nix b/nixos/modules/tasks/network-interfaces-scripted.nix
index 67ef152c4b65..da4aa916d655 100644
--- a/nixos/modules/tasks/network-interfaces-scripted.nix
+++ b/nixos/modules/tasks/network-interfaces-scripted.nix
@@ -61,8 +61,6 @@ let
           MACAddress = i.macAddress;
         } // optionalAttrs (i.mtu != null) {
           MTUBytes = toString i.mtu;
-        } // optionalAttrs (i.wakeOnLan.enable == true) {
-          WakeOnLan = concatStringsSep " " i.wakeOnLan.policy;
         };
       };
     in listToAttrs (map createNetworkLink interfaces);
diff --git a/nixos/modules/tasks/network-interfaces-systemd.nix b/nixos/modules/tasks/network-interfaces-systemd.nix
index 86eed4214f89..cee23eb24406 100644
--- a/nixos/modules/tasks/network-interfaces-systemd.nix
+++ b/nixos/modules/tasks/network-interfaces-systemd.nix
@@ -28,21 +28,20 @@ let
     # TODO: warn the user that any address configured on those interfaces will be useless
     ++ concatMap (i: attrNames (filterAttrs (_: config: config.type != "internal") i.interfaces)) (attrValues cfg.vswitches);
 
-  domains = cfg.search ++ (optional (cfg.domain != null) cfg.domain);
-  genericNetwork = override:
-    let gateway = optional (cfg.defaultGateway != null && (cfg.defaultGateway.address or "") != "") cfg.defaultGateway.address
-      ++ optional (cfg.defaultGateway6 != null && (cfg.defaultGateway6.address or "") != "") cfg.defaultGateway6.address;
-        makeGateway = gateway: {
+  defaultGateways = mkMerge (forEach [ cfg.defaultGateway cfg.defaultGateway6 ] (gateway:
+    optionalAttrs (gateway != null && gateway.interface != null) {
+      networks."40-${gateway.interface}" = {
+        matchConfig.Name = gateway.interface;
+        routes = [{
           routeConfig = {
-            Gateway = gateway;
-            GatewayOnLink = false;
+            Gateway = gateway.address;
+          } // optionalAttrs (gateway.metric != null) {
+            Metric = gateway.metric;
           };
-        };
-    in optionalAttrs (gateway != [ ]) {
-      routes = override (map makeGateway gateway);
-    } // optionalAttrs (domains != [ ]) {
-      domains = override domains;
-    };
+        }];
+      };
+    }
+  ));
 
   genericDhcpNetworks = initrd: mkIf cfg.useDHCP {
     networks."99-ethernet-default-dhcp" = {
@@ -89,10 +88,10 @@ let
         };
       };
     });
-    networks."40-${i.name}" = mkMerge [ (genericNetwork id) {
+    networks."40-${i.name}" = {
       name = mkDefault i.name;
       DHCP = mkForce (dhcpStr
-        (if i.useDHCP != null then i.useDHCP else false));
+        (if i.useDHCP != null then i.useDHCP else (config.networking.useDHCP && i.ipv4.addresses == [ ])));
       address = forEach (interfaceIps i)
         (ip: "${ip.address}/${toString ip.prefixLength}");
       routes = forEach (interfaceRoutes i)
@@ -161,7 +160,7 @@ let
       } // optionalAttrs (i.mtu != null) {
         MTUBytes = toString i.mtu;
       };
-    }];
+    };
   }));
 
   bridgeNetworks = mkMerge (flip mapAttrsToList cfg.bridges (name: bridge: {
@@ -172,10 +171,10 @@ let
       };
     };
     networks = listToAttrs (forEach bridge.interfaces (bi:
-      nameValuePair "40-${bi}" (mkMerge [ (genericNetwork (mkOverride 999)) {
+      nameValuePair "40-${bi}" {
         DHCP = mkOverride 0 (dhcpStr false);
         networkConfig.Bridge = name;
-      } ])));
+      }));
   }));
 
   vlanNetworks = mkMerge (flip mapAttrsToList cfg.vlans (name: vlan: {
@@ -186,9 +185,9 @@ let
       };
       vlanConfig.Id = vlan.id;
     };
-    networks."40-${vlan.interface}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
+    networks."40-${vlan.interface}" = {
       vlan = [ name ];
-    } ]);
+    };
   }));
 
 in
@@ -201,6 +200,7 @@ in
     # initrd.systemd.network.enable. By setting the latter and not the
     # former, the user retains full control over the configuration.
     boot.initrd.systemd.network = mkMerge [
+      defaultGateways
       (genericDhcpNetworks true)
       interfaceNetworks
       bridgeNetworks
@@ -217,11 +217,11 @@ in
       assertion = cfg.defaultGatewayWindowSize == null;
       message = "networking.defaultGatewayWindowSize is not supported by networkd.";
     } {
-      assertion = cfg.defaultGateway == null || cfg.defaultGateway.interface == null;
-      message = "networking.defaultGateway.interface is not supported by networkd.";
+      assertion = cfg.defaultGateway != null -> cfg.defaultGateway.interface != null;
+      message = "networking.defaultGateway.interface is not optional when using networkd.";
     } {
-      assertion = cfg.defaultGateway6 == null || cfg.defaultGateway6.interface == null;
-      message = "networking.defaultGateway6.interface is not supported by networkd.";
+      assertion = cfg.defaultGateway6 != null -> cfg.defaultGateway6.interface != null;
+      message = "networking.defaultGateway6.interface is not optional when using networkd.";
     } ] ++ flip mapAttrsToList cfg.bridges (n: { rstp, ... }: {
       assertion = !rstp;
       message = "networking.bridges.${n}.rstp is not supported by networkd.";
@@ -236,6 +236,7 @@ in
       mkMerge [ {
         enable = true;
       }
+      defaultGateways
       (genericDhcpNetworks false)
       interfaceNetworks
       bridgeNetworks
@@ -305,10 +306,10 @@ in
         };
 
         networks = listToAttrs (forEach bond.interfaces (bi:
-          nameValuePair "40-${bi}" (mkMerge [ (genericNetwork (mkOverride 999)) {
+          nameValuePair "40-${bi}" {
             DHCP = mkOverride 0 (dhcpStr false);
             networkConfig.Bond = name;
-          } ])));
+          }));
       })))
       (mkMerge (flip mapAttrsToList cfg.macvlans (name: macvlan: {
         netdevs."40-${name}" = {
@@ -318,9 +319,9 @@ in
           };
           macvlanConfig = optionalAttrs (macvlan.mode != null) { Mode = macvlan.mode; };
         };
-        networks."40-${macvlan.interface}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
+        networks."40-${macvlan.interface}" = {
           macvlan = [ name ];
-        } ]);
+        };
       })))
       (mkMerge (flip mapAttrsToList cfg.fooOverUDP (name: fou: {
         netdevs."40-${name}" = {
@@ -365,9 +366,9 @@ in
               })));
         };
         networks = mkIf (sit.dev != null) {
-          "40-${sit.dev}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
+          "40-${sit.dev}" = {
             tunnel = [ name ];
-          } ]);
+          };
         };
       })))
       (mkMerge (flip mapAttrsToList cfg.greTunnels (name: gre: {
@@ -386,9 +387,9 @@ in
             });
         };
         networks = mkIf (gre.dev != null) {
-          "40-${gre.dev}" = (mkMerge [ (genericNetwork (mkOverride 999)) {
+          "40-${gre.dev}" = {
             tunnel = [ name ];
-          } ]);
+          };
         };
       })))
       vlanNetworks
diff --git a/nixos/modules/tasks/network-interfaces.nix b/nixos/modules/tasks/network-interfaces.nix
index fe77a444595a..853a2cb31432 100644
--- a/nixos/modules/tasks/network-interfaces.nix
+++ b/nixos/modules/tasks/network-interfaces.nix
@@ -190,9 +190,11 @@ let
         type = types.nullOr types.bool;
         default = null;
         description = lib.mdDoc ''
-          Whether this interface should be configured with dhcp.
-          Null implies the old behavior which depends on whether ip addresses
-          are specified or not.
+          Whether this interface should be configured with DHCP. Overrides the
+          default set by {option}`networking.useDHCP`. If `null` (the default),
+          DHCP is enabled if the interface has no IPv4 addresses configured
+          with {option}`networking.interfaces.<name>.ipv4.addresses`, and
+          disabled otherwise.
         '';
       };
 
@@ -640,9 +642,7 @@ in
           } ];
         };
       description = lib.mdDoc ''
-        The configuration for each network interface.  If
-        {option}`networking.useDHCP` is true, then every
-        interface not listed here will be configured using DHCP.
+        The configuration for each network interface.
 
         Please note that {option}`systemd.network.netdevs` has more features
         and is better maintained. When building new things, it is advised to
@@ -1304,8 +1304,8 @@ in
       default = true;
       description = lib.mdDoc ''
         Whether to use DHCP to obtain an IP address and other
-        configuration for all network interfaces that are not manually
-        configured.
+        configuration for all network interfaces that do not have any manually
+        configured IPv4 addresses.
       '';
     };
 
@@ -1344,7 +1344,10 @@ in
 
   config = {
 
-    warnings = concatMap (i: i.warnings) interfaces;
+    warnings = (concatMap (i: i.warnings) interfaces) ++ (lib.optional
+      (config.systemd.network.enable && cfg.useDHCP && !cfg.useNetworkd) ''
+        The combination of `systemd.network.enable = true`, `networking.useDHCP = true` and `networking.useNetworkd = false` can cause both networkd and dhcpcd to manage the same interfaces. This can lead to loss of networking. It is recommended you choose only one of networkd (by also enabling `networking.useNetworkd`) or scripting (by disabling `systemd.network.enable`)
+      '');
 
     assertions =
       (forEach interfaces (i: {
@@ -1403,28 +1406,6 @@ in
           val = tempaddrValues.${opt}.sysctl;
          in nameValuePair "net.ipv6.conf.${replaceStrings ["."] ["/"] i.name}.use_tempaddr" val));
 
-    security.wrappers = {
-      ping = {
-        owner = "root";
-        group = "root";
-        capabilities = "cap_net_raw+p";
-        source = "${pkgs.iputils.out}/bin/ping";
-      };
-    };
-    security.apparmor.policies."bin.ping".profile = lib.mkIf config.security.apparmor.policies."bin.ping".enable (lib.mkAfter ''
-      /run/wrappers/bin/ping {
-        include <abstractions/base>
-        include <nixos/security.wrappers/ping>
-        rpx /run/wrappers/wrappers.*/ping,
-      }
-      /run/wrappers/wrappers.*/ping {
-        include <abstractions/base>
-        include <nixos/security.wrappers/ping>
-        capability net_raw,
-        capability setpcap,
-      }
-    '');
-
     # Set the host and domain names in the activation script.  Don't
     # clear it if it's not configured in the NixOS configuration,
     # since it may have been set by dhcpcd in the meantime.
@@ -1460,6 +1441,16 @@ in
       ]
       ++ bridgeStp;
 
+    # Wake-on-LAN configuration is shared by the scripted and networkd backends.
+    systemd.network.links = pipe interfaces [
+      (filter (i: i.wakeOnLan.enable))
+      (map (i: nameValuePair "40-${i.name}" {
+        matchConfig.OriginalName = i.name;
+        linkConfig.WakeOnLan = concatStringsSep " " i.wakeOnLan.policy;
+      }))
+      listToAttrs
+    ];
+
     # The network-interfaces target is kept for backwards compatibility.
     # New modules must NOT use it.
     systemd.targets.network-interfaces =