# Based partially on (wongsyrone/hbl0307106015) versions
include $(TOPDIR)/rules.mk

PKG_NAME:=samba
PKG_VERSION:=4.9.4
PKG_RELEASE:=1

PKG_MAINTAINER:=Andy Walsh <andy.walsh44+github@gmail.com>
PKG_LICENSE:=GPL-3.0-only
PKG_LICENSE_FILES:=COPYING

PKG_SOURCE_URL:=https://download.samba.org/pub/samba/stable/
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
PKG_HASH:=6d98a8d8bcccbe788e4bbb406362e6676311aca711a3f3cc9b3a404bb9ff0b4f

# Buildroot bug? Can't add target deps via '+SAMBA4_SERVER_AD_DC:python-crypto' (as work-around we select via config.in)
PKG_BUILD_DEPENDS:=SAMBA4_SERVER_AD_DC:python-crypto nfs-kernel-server/host

PKG_CONFIG_DEPENDS:= \
	CONFIG_SAMBA4_SERVER_NETBIOS \
	CONFIG_SAMBA4_SERVER_AVAHI \
	CONFIG_SAMBA4_SERVER_VFS \
	CONFIG_SAMBA4_SERVER_VFSX \
	CONFIG_SAMBA4_SERVER_QUOTAS \
	CONFIG_SAMBA4_SERVER_ACL \
	CONFIG_SAMBA4_SERVER_AD_DC \
	CONFIG_SAMBA4_SERVER_WINBIND \
	CONFIG_PACKAGE_kmod-fs-btrfs \
	CONFIG_PACKAGE_kmod-fs-xfs

include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/kernel.mk
include $(INCLUDE_DIR)/version.mk

define Package/samba4/Default
  SECTION:=net
  CATEGORY:=Network
  TITLE:=Samba $(PKG_VERSION)
  URL:=http://www.samba.org/
endef

define Package/samba4/Default/description
  The Samba software suite is a collection of programs that implements the
  SMB/CIFS protocol for UNIX systems, allowing you to serve files and printers.

  Samba 4 implements up-to protocol version SMB v3.1.1 (Win10), supports mDNS via AVAHI and a AD-DC setup via krb5.
  NOTE: No cluster and printer support.
endef

define Package/samba4-libs
  $(call Package/samba4/Default)
  TITLE+= libs
  DEPENDS:= +zlib +libtirpc +krb5-libs +libpopt \
	+PACKAGE_libcap:libcap +PACKAGE_libpthread:libpthread +PACKAGE_libnettle:libnettle \
	+PACKAGE_libgcrypt:libgcrypt +PACKAGE_libpam:libpam +PACKAGE_dbus:dbus +PACKAGE_libavahi-client:libavahi-client \
	+SAMBA4_SERVER_VFS:attr \
	+SAMBA4_SERVER_ACL:acl +SAMBA4_SERVER_ACL:attr \
	+SAMBA4_SERVER_AVAHI:libavahi-client \
	+SAMBA4_SERVER_AD_DC:python-base +SAMBA4_SERVER_AD_DC:libopenssl +SAMBA4_SERVER_AD_DC:libgnutls +SAMBA4_SERVER_AD_DC:libopenldap +SAMBA4_SERVER_AD_DC:jansson +SAMBA4_SERVER_AD_DC:libarchive
endef

define Package/samba4-server
  $(call Package/samba4/Default)
  TITLE+= server
  DEPENDS:= +samba4-libs
endef

define Package/samba4-server/description
  installs: smbd (daemon) smbpasswd pdbedit testparm

    This provides the basic fileserver service and is the minimum needed to serve file shares.
    HINT: https://fitzcarraldoblog.wordpress.com/2016/10/17/a-correct-method-of-configuring-samba-for-browsing-smb-shares-in-a-home-network/
endef

define Package/samba4-server/config
  select PACKAGE_wsdd2
  source "$(SOURCE)/Config.in"
endef

define Package/samba4-client
  $(call Package/samba4/Default)
  TITLE+= client
  DEPENDS:= +samba4-libs
endef

define Package/samba4-client/description
  installs: smbclient cifsdd

  The smbclient program implements a simple ftp-like client for accessing SMB shares
endef

define Package/samba4-admin
  $(call Package/samba4/Default)
  TITLE+= admin tools
  DEPENDS:= +samba4-libs
endef

define Package/samba4-admin/description
  installs: net smbcontrol profiles rpcclient smbcacls smbcquotas

  Administration tools collection
endef

define Package/samba4-utils
  $(call Package/samba4/Default)
  TITLE+= utils
  DEPENDS:= +samba4-libs
endef

define Package/samba4-utils/description
  installs: smbstatus smbtree smbget nmblookup mvxattr

  Utilities collection
endef

TARGET_CFLAGS += -ffunction-sections -fdata-sections
TARGET_LDFLAGS += -Wl,--gc-sections

CONFIGURE_VARS += \
	CPP="$(TARGET_CROSS)cpp"

CONFIGURE_CMD = ./buildtools/bin/waf

# Strip options that WAF configure script does not recognize
CONFIGURE_ARGS:=$(filter-out	\
	--host=%		\
	--build=%		\
	--program-suffix=%	\
	--disable-nls		\
	--disable-ipv6		\
	, $(CONFIGURE_ARGS))

CONFIGURE_ARGS += \
		--hostcc="$(HOSTCC)" \
		--cross-compile \
		--cross-answers=cross-answers.txt \
		--disable-cups \
		--disable-iprint \
		--disable-cephfs \
		--disable-fault-handling \
		--disable-glusterfs \
		--disable-rpath \
		--disable-rpath-install \
		--disable-rpath-private-install \
		--enable-fhs \
		--without-automount \
		--without-iconv \
		--without-lttng \
		--without-ntvfs-fileserver \
		--without-pam \
		--without-systemd \
		--without-utmp \
		--without-dmapi \
		--without-fam \
		--without-gettext \
		--without-regedit \
		--without-gpgme

# Optional AES-NI support - https://lists.samba.org/archive/samba-technical/2017-September/122738.html
# Support for Nettle wasn't comitted
ifdef CONFIG_TARGET_x86_64
	CONFIGURE_ARGS += --accel-aes=intelaesni
else
	CONFIGURE_ARGS += --accel-aes=none
endif

CONFIGURE_ARGS += \
		--with-lockdir=/var/lock \
		--with-logfilebase=/var/log \
		--with-piddir=/var/run \
		--with-privatedir=/etc/samba

CONFIGURE_ARGS += \
		--with-system-mitkrb5 "$(STAGING_DIR)/usr" \
		--with-system-mitkdc=/usr/sbin/krb5kdc

		## embedded-heimdal
		# --bundled-libraries=talloc,tevent,tdb,ldb,com_err,cmocka,roken,wind,hx509,asn1,heimbase,hcrypto,krb5,gssapi,heimntlm,hdb,kdc,NONE

ifeq ($(CONFIG_SAMBA4_SERVER_AVAHI),y)
	CONFIGURE_ARGS += --enable-avahi
else
	CONFIGURE_ARGS += --disable-avahi
endif
ifeq ($(CONFIG_SAMBA4_SERVER_QUOTAS),y)
	CONFIGURE_ARGS += --with-quotas
else
	CONFIGURE_ARGS += --without-quotas
endif
ifeq ($(CONFIG_SAMBA4_SERVER_ACL),y)
	CONFIGURE_ARGS += --with-acl-support
else
	CONFIGURE_ARGS += --without-acl-support
endif
ifeq ($(CONFIG_SAMBA4_SERVER_AD_DC),y)
	CONFIGURE_ARGS += --enable-gnutls --with-dnsupdate --with-ads --with-ldap
	TARGET_CFLAGS := -I$(STAGING_DIR)/usr/include/python2.7 $(TARGET_CFLAGS)
else
	CONFIGURE_ARGS += --without-ad-dc --without-json-audit --without-libarchive --disable-python --nopyc --nopyo --disable-gnutls --without-dnsupdate --without-ads --without-ldap
	CONFIGURE_VARS += \
		python_LDFLAGS="" \
		python_LIBDIR=""
endif
ifeq ($(CONFIG_SAMBA4_SERVER_WINBIND),y)
	CONFIGURE_ARGS += --with-winbind
else
	CONFIGURE_ARGS += --without-winbind
endif

SAMBA4_IDMAP_MODULES :=
SAMBA4_IDMAP_MODULES_SHARED :=
SAMBA4_PDB_MODULES :=pdb_smbpasswd,pdb_tdbsam,
SAMBA4_AUTH_MODULES :=auth_builtin,auth_sam,auth_unix,auth_script,
SAMBA4_VFS_MODULES :=vfs_default,
ifeq ($(CONFIG_SAMBA4_SERVER_VFS),y)
	SAMBA4_VFS_MODULES :=$(SAMBA4_VFS_MODULES)vfs_fruit,vfs_shadow_copy2,vfs_recycle,vfs_fake_perms,vfs_readonly,vfs_cap,vfs_offline,vfs_crossrename,vfs_catia,vfs_streams_xattr,vfs_xattr_tdb,
ifeq ($(CONFIG_PACKAGE_kmod-fs-btrfs),y)
	SAMBA4_VFS_MODULES :=$(SAMBA4_VFS_MODULES)vfs_btrfs,
endif
endif
ifeq ($(CONFIG_SAMBA4_SERVER_VFSX),y)
	SAMBA4_VFS_MODULES :=$(SAMBA4_VFS_MODULES)vfs_virusfilter,vfs_shell_snap,vfs_commit,vfs_worm,vfs_aio_fork,vfs_aio_pthread,vfs_netatalk,vfs_dirsort,vfs_fileid,
ifeq ($(CONFIG_PACKAGE_kmod-fs-xfs),y)
	SAMBA4_VFS_MODULES :=$(SAMBA4_VFS_MODULES)vfs_linux_xfs_sgid,
endif
endif
ifeq ($(CONFIG_SAMBA4_SERVER_QUOTAS),y)
	SAMBA4_VFS_MODULES :=$(SAMBA4_VFS_MODULES)vfs_default_quota,
endif
ifeq ($(CONFIG_SAMBA4_SERVER_ACL),y)
	SAMBA4_VFS_MODULES :=$(SAMBA4_VFS_MODULES)vfs_posixacl,vfs_acl_xattr,vfs_acl_tdb,
	# vfs_zfsacl needs https://github.com/zfsonlinux/zfs/tree/master/include/sys/zfs_acl.h
	# vfs_nfs4acl_xattr needs https://github.com/notriddle/libdrpc/blob/master/rpc/xdr.h
endif
ifeq ($(CONFIG_SAMBA4_SERVER_AD_DC),y)
	SAMBA4_PDB_MODULES :=$(SAMBA4_PDB_MODULES)pdb_samba_dsdb,
	SAMBA4_AUTH_MODULES :=$(SAMBA4_AUTH_MODULES)auth_samba4,
	SAMBA4_VFS_MODULES :=$(SAMBA4_VFS_MODULES)vfs_audit,vfs_extd_audit,vfs_full_audit,
endif
ifeq ($(CONFIG_SAMBA4_SERVER_WINBIND),y)
	SAMBA4_IDMAP_MODULES :=$(SAMBA4_IDMAP_MODULES)idmap_passdb,idmap_nss,idmap_tdb,idmap_tdb2,idmap_script,nss_info_template,
	SAMBA4_IDMAP_MODULES_SHARED :=$(SAMBA4_IDMAP_MODULES_SHARED)idmap_autorid,idmap_rid,idmap_ad,idmap_rfc2307,
	# idmap_ad needs --with-ads
	# idmap_rfc2307 needs ldap headers
	SAMBA4_AUTH_MODULES :=$(SAMBA4_AUTH_MODULES)auth_winbind,
endif

SAMBA4_MODULES :=${SAMBA4_AUTH_MODULES}${SAMBA4_PDB_MODULES}${SAMBA4_IDMAP_MODULES}${SAMBA4_VFS_MODULES}
SAMBA4_MODULES_SHARDED :=${SAMBA4_IDMAP_MODULES_SHARED}

CONFIGURE_ARGS += \
		--with-static-modules=$(SAMBA4_MODULES)!DEFAULT,!FORCED \
		--with-shared-modules=$(SAMBA4_MODULES_SHARDED)!DEFAULT,!FORCED

# Setup build/install targets
# CONFIG_PACKAGE_samba4-server
BUILD_TARGETS_SERVER :=smbd/smbd,smbpasswd,pdbedit,testparm
# Optional server targets
ifeq ($(CONFIG_SAMBA4_SERVER_ACL),y)
	BUILD_TARGETS_SERVER :=$(BUILD_TARGETS_SERVER),sharesec
endif
ifeq ($(CONFIG_SAMBA4_SERVER_NETBIOS),y)
	BUILD_TARGETS_SERVER :=$(BUILD_TARGETS_SERVER),nmbd
endif
ifeq ($(CONFIG_SAMBA4_SERVER_AD_DC),y)
	BUILD_TARGETS_SERVER :=$(BUILD_TARGETS_SERVER),samba,nsstest,ntlm_auth
endif
ifeq ($(CONFIG_SAMBA4_SERVER_WINBIND),y)
	BUILD_TARGETS_SERVER :=$(BUILD_TARGETS_SERVER),winbindd,wbinfo,winbind_krb5_locator
endif
# CONFIG_PACKAGE_samba4-client
BUILD_TARGETS_CLIENT :=client/smbclient,client/cifsdd
# CONFIG_PACKAGE_samba4-admin
BUILD_TARGETS_ADMIN :=net,smbcontrol,profiles,rpcclient,smbcacls,smbcquotas
# CONFIG_PACKAGE_samba4-utils
BUILD_TARGETS_UTILS :=smbstatus,smbtree,smbget,mvxattr,nmblookup

# lib bundling
# NOTE: bundle + make private, we want to avoid version configuration (build, link) conflicts
CONFIGURE_ARGS += --builtin-libraries=talloc,tevent,texpect,tdb,ldb,tdr,cmocka,replace
#CONFIGURE_ARGS += --nonshared-binary=$(BUILD_TARGETS_SERVER)
ifeq ($(CONFIG_SAMBA4_SERVER_AD_DC),y)
CONFIGURE_ARGS += --bundled-libraries=talloc,tevent,texpect,tdb,ldb,tdr,cmocka,replace,pytalloc-util,pyldb-util,NONE
else
CONFIGURE_ARGS += --bundled-libraries=talloc,tevent,texpect,tdb,ldb,tdr,cmocka,replace,NONE
endif
CONFIGURE_ARGS += --private-libraries=talloc,tevent,texpect,tdb,ldb,tdr,cmocka,replace

define Build/Prepare
	$(Build/Prepare/Default)
ifeq ($(CONFIG_SAMBA4_SERVER_AD_DC),)
	# un-bundle dnspython
	$(SED) '/"dns.resolver":/d' $(PKG_BUILD_DIR)/third_party/wscript
	# unbundle iso8601
	$(SED) '/"iso8601":/d' $(PKG_BUILD_DIR)/third_party/wscript
endif
endef

define Build/Configure
	$(CP) ./waf-cross-answers/$(ARCH).txt $(PKG_BUILD_DIR)/cross-answers.txt
	echo 'Checking uname machine type: "$(ARCH)"' >> $(PKG_BUILD_DIR)/cross-answers.txt
	echo 'Checking uname release type: "$(LINUX_VERSION)"' >> $(PKG_BUILD_DIR)/cross-answers.txt
	echo 'Checking uname version type: "$(VERSION_DIST) Linux-$(LINUX_VERSION) $(shell date +%Y-%m-%d)"' >> $(PKG_BUILD_DIR)/cross-answers.txt
	# NOTE: For some unknown reason this answer is not needed on some hosts/distros, yet needed on others?
	echo 'Checking whether POSIX capabilities are available: OK' >> $(PKG_BUILD_DIR)/cross-answers.txt
	$(call Build/Configure/Default,configure)
endef

# BUG: We need to use "waf install --targets=" otherwise a "make install" or "waf install" will retrigger a full recompile of all possible targets!
define Build/Compile
	(cd $(PKG_BUILD_DIR); \
		./buildtools/bin/waf install -j$(shell nproc) \
		--targets=$(SAMBA4_MODULES)$(SAMBA4_MODULES_SHARDED)$(BUILD_TARGETS_SERVER),$(BUILD_TARGETS_UTILS),$(BUILD_TARGETS_ADMIN),$(BUILD_TARGETS_CLIENT) \
		--destdir="$(PKG_INSTALL_DIR)" \
	)
endef

# No default install see above
define Build/Install
endef

define Package/samba4-libs/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/*.so* $(1)/usr/lib/
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/samba/*.so* $(1)/usr/lib/
endef

define Package/samba4-client/install
	$(INSTALL_DIR) $(1)/usr/bin
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/{smbclient,cifsdd} $(1)/usr/bin/
endef

define Package/samba4-admin/install
	$(INSTALL_DIR) $(1)/usr/bin
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/{net,smbcontrol,profiles,rpcclient,smbcacls,smbcquotas} $(1)/usr/bin/
endef

define Package/samba4-utils/install
	$(INSTALL_DIR) $(1)/usr/bin
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/{smbstatus,smbtree,smbget,mvxattr,nmblookup} $(1)/usr/bin/
endef

define Package/samba4-server/install
	$(INSTALL_DIR) $(1)/usr/lib/samba
	if [ -d $(PKG_INSTALL_DIR)/usr/lib/samba/idmap ]; then \
		$(CP) $(PKG_INSTALL_DIR)/usr/lib/samba/idmap $(1)/usr/lib/samba/; \
	fi
	if [ -d $(PKG_INSTALL_DIR)/usr/lib/samba/auth ]; then \
		$(CP) $(PKG_INSTALL_DIR)/usr/lib/samba/auth $(1)/usr/lib/samba/; \
	fi
	if [ -d $(PKG_INSTALL_DIR)/usr/lib/samba/vfs ]; then \
		$(CP) $(PKG_INSTALL_DIR)/usr/lib/samba/vfs $(1)/usr/lib/samba/; \
	fi
	if [ -d $(PKG_INSTALL_DIR)/usr/lib/samba/pdb ]; then \
		$(CP) $(PKG_INSTALL_DIR)/usr/lib/samba/pdb $(1)/usr/lib/samba/; \
	fi
	$(INSTALL_DIR) $(1)/usr/bin
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/{smbpasswd,pdbedit,testparm} $(1)/usr/bin/
	$(INSTALL_DIR) $(1)/usr/sbin
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/smbd $(1)/usr/sbin/
ifeq ($(CONFIG_SAMBA4_SERVER_AD_DC),y)
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/python2.7 $(1)/usr/lib/
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/{samba-tool,ntlm_auth,smbtar} $(1)/usr/bin/
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/{samba,samba-gpupdate,samba_dnsupdate,samba_kcc,samba_spnupdate,samba_upgradedns} $(1)/usr/sbin/
endif
ifeq ($(CONFIG_SAMBA4_SERVER_NETBIOS),y)
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/nmbd $(1)/usr/sbin/
endif
ifeq ($(CONFIG_SAMBA4_SERVER_WINBIND),y)
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/wbinfo $(1)/usr/bin/
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/winbindd $(1)/usr/sbin/
endif
ifeq ($(CONFIG_SAMBA4_SERVER_ACL),y)
	$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/sharesec $(1)/usr/bin/
endif
	$(INSTALL_DIR) $(1)/etc/config $(1)/etc/samba $(1)/etc/init.d
	$(INSTALL_DATA) ./files/samba.config $(1)/etc/config/samba4
	$(INSTALL_DATA) ./files/smb.conf.template $(1)/etc/samba
	$(INSTALL_BIN) ./files/samba.init $(1)/etc/init.d/samba4
endef

define Package/samba4-server/conffiles
/etc/config/samba4
/etc/samba/smb.conf.template
/etc/samba/smb.conf
/etc/samba/smbpasswd
/etc/samba/secrets.tdb
/etc/samba/passdb.tdb
/etc/samba/idmap.ldb
/etc/samba/lmhosts
/etc/nsswitch.conf
endef

$(eval $(call BuildPackage,samba4-libs))
$(eval $(call BuildPackage,samba4-server))
$(eval $(call BuildPackage,samba4-client))
$(eval $(call BuildPackage,samba4-admin))
$(eval $(call BuildPackage,samba4-utils))