cifsd: add package cifsd [backport]

* adds cifsd (cifs kernel server) + tools

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>

kernel/cifsd/Makefile

@@ -0,0 +1,53 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=cifsd
+PKG_RELEASE:=1
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://github.com/cifsd-team/cifsd.git
+PKG_SOURCE_DATE:=2019-10-31
+PKG_SOURCE_VERSION:=ee91a4ff3472a8953c2d3cf6d3ecaaf93696222c
+PKG_MIRROR_HASH:=0e3661ebe6ae44990f64632969057c21a49f71878b894180dde088a4166e1720
+
+PKG_MAINTAINER:=Andy Walsh <andy.walsh44+github@gmail.com>
+PKG_LICENSE:=GPL-2.0-or-later
+PKG_LICENSE_FILES:=COPYING
+
+include $(INCLUDE_DIR)/kernel.mk
+include $(INCLUDE_DIR)/package.mk
+
+define KernelPackage/fs-cifsd
+	SUBMENU:=Filesystems
+	TITLE:=CIFS/SMB kernel server support
+	URL:=https://github.com/cifsd-team/cifsd
+	FILES:=$(PKG_BUILD_DIR)/cifsd.ko
+	DEPENDS:= \
+		+kmod-nls-base \
+		+kmod-nls-utf8 \
+		+kmod-crypto-md4 \
+		+kmod-crypto-md5 \
+		+kmod-crypto-hmac \
+		+kmod-crypto-ecb \
+		+kmod-crypto-des \
+		+kmod-crypto-sha256 \
+		+kmod-crypto-cmac \
+		+kmod-crypto-sha512 \
+		+kmod-crypto-aead \
+		+kmod-crypto-ccm
+endef
+
+define KernelPackage/fs-cifsd/description
+	Kernel module for a CIFS/SMBv2,3 fileserver.
+endef
+
+# broken atm (needs CONFIG_KEYS=y)
+#EXTRA_CFLAGS+=-DCONFIG_CIFSD_ACL
+
+define Build/Compile
+	$(KERNEL_MAKE) SUBDIRS="$(PKG_BUILD_DIR)" \
+	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
+	CONFIG_CIFS_SERVER=m \
+	modules
+endef
+
+$(eval $(call KernelPackage,fs-cifsd))