From fbb8e1ef45fa3ebb10e653cdb14465508541350d Mon Sep 17 00:00:00 2001
From: Rosen Penev <rosenp@gmail.com>
Date: Mon, 20 Dec 2021 17:58:38 -0800
Subject: [PATCH] ksmbd: add out-of-tree module

ksmbd is an upstream linux alternative to Samba which is lighterweight
and more performant, especially on underpowered devices.

Moving it here from the packages feed as it is now an upstream kernel
module. Also easier to update as version updates can be coordinated better

The next LTS kernel (5.15) has this included. A depend on kernel < 5.15
will need to be added later.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
---
 package/kernel/ksmbd/Makefile                 | 73 +++++++++++++++++++
 .../ksmbd/patches/01-keep_kmod_metadata.patch | 11 +++
 2 files changed, 84 insertions(+)
 create mode 100644 package/kernel/ksmbd/Makefile
 create mode 100644 package/kernel/ksmbd/patches/01-keep_kmod_metadata.patch

diff --git a/package/kernel/ksmbd/Makefile b/package/kernel/ksmbd/Makefile
new file mode 100644
index 0000000000..842a22c82a
--- /dev/null
+++ b/package/kernel/ksmbd/Makefile
@@ -0,0 +1,73 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ksmbd
+PKG_VERSION:=3.4.3
+PKG_RELEASE:=$(AUTORELEASE)
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://codeload.github.com/cifsd-team/cifsd/tar.gz/$(PKG_VERSION)?
+PKG_HASH:=a910c55d9e6924775e00504eddd00b49788603af29d0772cb9fb6722c189f628
+
+PKG_LICENSE:=GPL-2.0-or-later
+PKG_LICENSE_FILES:=COPYING
+
+include $(INCLUDE_DIR)/kernel.mk
+include $(INCLUDE_DIR)/package.mk
+
+TAR_OPTIONS+= --strip-components 1
+TAR_CMD=$(HOST_TAR) -C $(1) $(TAR_OPTIONS)
+
+define KernelPackage/fs-ksmbd
+	SUBMENU:=Filesystems
+	TITLE:=SMB kernel server support
+	URL:=https://github.com/cifsd-team/cifsd
+	FILES:=$(PKG_BUILD_DIR)/ksmbd.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 \
+		+kmod-crypto-gcm \
+		+kmod-asn1-decoder \
+		+kmod-oid-registry
+endef
+
+# The last two DEPENDS are hacks in order to get CONFIG_ASN1 and CONFIG_OID_REGISTRY
+# which it seems can't be selected independently. Some bug in either base or upstream.
+
+define KernelPackage/fs-ksmbd/description
+  Ksmbd is an In-kernel SMBv(1)2/3 fileserver.
+  It's an implementation of the SMB protocol in kernel space for sharing files and IPC services over network.
+endef
+
+define KernelPackage/fs-ksmbd/config
+config KSMBD_SMB_INSECURE_SERVER
+	bool "Support for insecure SMB1/CIFS and SMB2.0 protocols"
+	depends on PACKAGE_kmod-fs-ksmbd
+	help
+		This enables deprecated insecure protocols dialects: SMB1/CIFS and SMB2.0.
+	default y
+endef
+
+ifeq ($(CONFIG_KSMBD_SMB_INSECURE_SERVER),y)
+PKG_EXTRA_KCONFIG:=CONFIG_SMB_INSECURE_SERVER=y
+EXTRA_CFLAGS += -DCONFIG_SMB_INSECURE_SERVER=1
+endif
+
+define Build/Compile
+	$(KERNEL_MAKE) M="$(PKG_BUILD_DIR)" \
+	EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
+	$(PKG_EXTRA_KCONFIG) \
+	CONFIG_SMB_SERVER=m \
+	modules
+endef
+
+$(eval $(call KernelPackage,fs-ksmbd))
diff --git a/package/kernel/ksmbd/patches/01-keep_kmod_metadata.patch b/package/kernel/ksmbd/patches/01-keep_kmod_metadata.patch
new file mode 100644
index 0000000000..b2c6687d06
--- /dev/null
+++ b/package/kernel/ksmbd/patches/01-keep_kmod_metadata.patch
@@ -0,0 +1,11 @@
+--- a/glob.h
++++ b/glob.h
+@@ -7,6 +7,8 @@
+ #ifndef __KSMBD_GLOB_H
+ #define __KSMBD_GLOB_H
+ 
++#undef CONFIG_MODULE_STRIPPED
++
+ #include <linux/ctype.h>
+ 
+ #include "unicode.h"
-- 
2.30.2