default.nix

@@ -10,9 +10,16 @@ with self; rec {
 
   janus-gateway = callPackage ./pkgs/janus-gateway { };
 
-  linuxPackages_latest = linuxPackages_5_9;
-
   nextcloud-spreed-signaling = callPackage ./pkgs/nextcloud-spreed-signaling { };
 
-  usrsctp = callPackage ./pkgs/usrsctp { };
+  linux_5_9 = callPackage ./pkgs/linux/linux-5.9.nix {
+    kernelPatches = [
+      kernelPatches.bridge_stp_helper
+      kernelPatches.request_key_helper
+      kernelPatches.export_kernel_fpu_functions."5.3"
+    ];
+  };
+  linuxPackages_5_9 = recurseIntoAttrs (linuxPackagesFor linux_5_9);
+  linuxPackages_latest = linuxPackages_5_9;
+
 }

pkgs/janus-gateway/default.nix

@@ -4,7 +4,7 @@
 , libnice
 , openssl
 , srtp
-, usrsctp
+#, usrsctp
 , libmicrohttpd
 , libwebsockets
 , gnumake
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
     libnice
     openssl
     srtp
-    usrsctp
+    #usrsctp
     libmicrohttpd
     libwebsockets
     gnumake

pkgs/linux/linux-5.9.nix

@@ -0,0 +1,18 @@
+{ stdenv, buildPackages, fetchurl, perl, buildLinux, modDirVersionArg ? null, ... } @ args:
+
+with stdenv.lib;
+
+buildLinux (args // rec {
+  version = "5.9.6";
+
+  # modDirVersion needs to be x.y.z, will automatically add .0 if needed
+  modDirVersion = if (modDirVersionArg == null) then concatStringsSep "." (take 3 (splitVersion "${version}.0")) else modDirVersionArg;
+
+  # branchVersion needs to be x.y
+  extraMeta.branch = versions.majorMinor version;
+
+  src = fetchurl {
+    url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
+    sha256 = "0w2kcng09nzk09dwkx4azdfgnwzbd2mz8lyl4j69bwx837z85hbc";
+  };
+} // (args.argsOverride or {}))

pkgs/usrsctp/default.nix

@@ -1,29 +0,0 @@
-{ stdenv, lib, fetchFromGitHub, which, libtool, autoconf, automake }:
-
-let
-  version = "2020-11-04";
-  rev = "4098a99f47eb7145f6f7ce0b66a19f6b1b13ebfa";
-  sha256 = "1mfaz4ya5c2k1cpn5id4312qb9ni5sp9j7c57jxcfjx7bkds6k17";
-in stdenv.mkDerivation rec {
-  pname = "usrsctp-unstable";
-  inherit version;
-
-  src = fetchFromGitHub {
-    owner = "sctplab";
-    repo = "usrsctp";
-    inherit rev sha256;
-  };
-
-  nativeBuildInputs = [
-    which
-    libtool
-    autoconf
-    automake
-  ];
-
-  hardeningDisable = [
-    "fortify"
-  ];
-
-  preConfigure = "./bootstrap";
-}