freebsd.{zfsd,libdevdctl}: init (#389699)

pkgs/os-specific/bsd/freebsd/pkgs/libdevdctl.nix

@@ -0,0 +1,15 @@
+{
+  lib,
+  mkDerivation,
+}:
+mkDerivation {
+  path = "lib/libdevdctl";
+  clangFixup = false;
+
+  outputs = [
+    "out"
+    "debug"
+  ];
+
+  meta.platforms = lib.platforms.freebsd;
+}

pkgs/os-specific/bsd/freebsd/pkgs/zfsd.nix

@@ -0,0 +1,40 @@
+{
+  mkDerivation,
+  lib,
+  libgeom,
+  libzfs,
+  libdevdctl,
+  libsbuf,
+  libbsdxml,
+}:
+mkDerivation {
+  path = "cddl/usr.sbin/zfsd";
+  extraPaths = [
+    "sys/contrib/openzfs"
+  ];
+  clangFixup = false;
+  ouptuts = [
+    "out"
+    "man"
+    "debug"
+  ];
+
+  buildInputs = [
+    libgeom
+    libzfs
+    libdevdctl
+    libsbuf
+    libbsdxml
+  ];
+
+  MK_TESTS = "no";
+
+  meta = {
+    mainProgram = "zfsd";
+    platforms = lib.platforms.freebsd;
+    license = with lib.licenses; [
+      cddl
+      bsd2
+    ];
+  };
+}