ASR_BASE

Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/external/subpack/net/samba4/files/samba.init b/external/subpack/net/samba4/files/samba.init
new file mode 100644
index 0000000..b849a1c
--- /dev/null
+++ b/external/subpack/net/samba4/files/samba.init
@@ -0,0 +1,236 @@
+#!/bin/sh /etc/rc.common
+
+START=98
+STOP=05
+USE_PROCD=1
+
+SAMBA_IFACE=""
+
+config_get_sane() {
+	config_get "$@"
+	set -- "$(echo "$1" | tr -d '<>[]{};%?=#\n')"
+}
+
+smb_header() {
+	config_get_sane SAMBA_IFACE "$1" interface "lan"
+
+	# resolve interfaces
+	interfaces=$(
+		. /lib/functions/network.sh
+
+		for net in $SAMBA_IFACE; do
+			network_is_up "$net" || continue
+			network_get_device device "$net"
+			printf "%s " "${device:-$net}"
+		done
+	)
+
+	# we dont use netbios anymore as default and wsd/avahi is dns based
+	hostname="$(sed 's/\..*//' /proc/sys/kernel/hostname | tr -d '{};%?=#\n')"
+
+	config_get_sane workgroup "$1" workgroup "WORKGROUP"
+	config_get_sane description "$1" description "Samba on OpenWrt"
+	config_get_sane charset "$1" charset "UTF-8"
+
+	config_get_bool MACOS "$1" macos 0
+	config_get_bool DISABLE_NETBIOS "$1" disable_netbios 0
+	config_get_bool DISABLE_AD_DC "$1" disable_ad_dc 0
+	config_get_bool DISABLE_WINBIND "$1" disable_winbind 0
+	config_get_bool DISABLE_ASYNC_IO "$1" disable_async_io 0
+	config_get_bool ALLOW_LEGACY_PROTOCOLS "$1" allow_legacy_protocols 0
+	config_get_bool ENABLE_EXTRA_TUNING "$1" enable_extra_tuning 0
+
+	mkdir -p /var/etc
+	sed -e "s#|NAME|#$hostname#g" \
+	    -e "s#|WORKGROUP|#$workgroup#g" \
+	    -e "s#|DESCRIPTION|#$description#g" \
+	    -e "s#|INTERFACES|#$interfaces#g" \
+	    -e "s#|CHARSET|#$charset#g" \
+	    /etc/samba/smb.conf.template > /var/etc/smb.conf
+
+	{
+		printf "\n######### Dynamic written config options #########\n"
+
+		# extra tuning options by community feedback (kinda try&error)
+		if [ "$ENABLE_EXTRA_TUNING" -eq 1 ]; then
+			socket_opt="$(grep -i 'socket options' /etc/samba/smb.conf.template | awk -F'=' '{print $2}' | tr -d '\n')"
+			[ -n "$socket_opt" ] && printf "\tsocket options =%s SO_KEEPALIVE\n" "$socket_opt" # add keepalive, maybe larger buffer? SO_RCVBUF=65536 SO_SNDBUF=65536
+
+			printf "\tmax xmit = 131072\n" # increase smb1 transmit size
+			printf "\tmin receivefile size = 131072\n" # allows zero-copy writes via fs
+			printf "\tfake oplocks = Yes\n" # may corrupt files for simultanous writes to the same files by multiple clients, but might also see big speed boost
+			printf "\tuse sendfile = Yes\n" # enable sendfile?
+		fi
+
+		if [ "$DISABLE_NETBIOS" -eq 1 ] || [ ! -x /usr/sbin/nmbd ]; then
+			printf "\tdisable netbios = yes\n"
+			# note: samba opens port 139 even if netbios is disabled via option above, so adjust listening ports
+			printf "\tsmb ports = 445\n"
+		fi
+
+		if [ "$DISABLE_ASYNC_IO" -eq 1 ]; then
+			printf "\taio read size = 0\n"
+			printf "\taio write size = 0\n"
+		fi
+
+		if [ "$ALLOW_LEGACY_PROTOCOLS" -eq 1 ]; then
+			logger -p daemon.info -t 'samba4-server' "Legacy Protocols allowed, don't use this option for secure environments!"
+			printf "\tserver min protocol = NT1\n"
+			printf "\tlanman auth = yes\n"
+			printf "\tntlm auth = ntlmv1-permitted\n"
+		fi
+	} >> /var/etc/smb.conf
+
+	[ -e /etc/samba/smb.conf ] || ln -nsf /var/etc/smb.conf /etc/samba/smb.conf
+
+	if [ ! -L /etc/samba/smb.conf ]; then
+		logger -p daemon.warn -t 'samba4-server' "Local custom /etc/samba/smb.conf file detected, all luci/config settings are ignored!"
+	fi
+}
+
+smb_add_share() {
+	config_get_sane name "$1" name
+	config_get_sane path "$1" path
+	config_get_sane users "$1" users
+	config_get_sane create_mask "$1" create_mask
+	config_get_sane dir_mask "$1" dir_mask
+	config_get_sane browseable "$1" browseable
+	config_get_sane read_only "$1" read_only
+	config_get_sane writeable "$1" writeable
+	config_get_sane guest_ok "$1" guest_ok
+	config_get_sane guest_only "$1" guest_only
+	config_get_sane inherit_owner "$1" inherit_owner
+	config_get_sane vfs_objects "$1" vfs_objects
+	config_get_bool timemachine "$1" timemachine 0
+	config_get_sane timemachine_maxsize "$1" timemachine_maxsize
+	config_get_bool force_root "$1" force_root 0
+	config_get_sane write_list "$1" write_list
+	config_get_sane read_list "$1" read_list
+	
+	[ -z "$name" ] || [ -z "$path" ] && return
+
+	{
+		printf "\n[$name]\n\tpath = %s\n" "$path"
+
+		if [ "$force_root" -eq 1 ]; then
+			printf "\tforce user = root\n"
+			printf "\tforce group = root\n"
+		else
+			[ -n "$users" ] && printf "\tvalid users = %s\n" "$users"
+		fi
+
+		[ -n "$create_mask" ] && printf "\tcreate mask = %s\n" "$create_mask"
+		[ -n "$dir_mask" ] && printf "\tdirectory mask = %s\n" "$dir_mask"
+
+		[ -n "$browseable" ] && printf "\tbrowseable = %s\n" "$browseable"
+		[ -n "$read_only" ] && printf "\tread only = %s\n" "$read_only"
+		[ -n "$writeable" ] && printf "\twriteable = %s\n" "$writeable"
+		[ -n "$guest_ok" ] && printf "\tguest ok = %s\n" "$guest_ok"
+		[ -n "$guest_only" ] && printf "\tguest only = %s\n" "$guest_only"
+		[ -n "$inherit_owner" ] && printf "\tinherit owner = %s\n" "$inherit_owner"
+
+		[ -n "$write_list" ] && printf "\twrite list = %s\n" "$write_list"
+		[ -n "$read_list" ] && printf "\tread list = %s\n" "$read_list"
+
+		if [ "$MACOS" -eq 1 ]; then
+			vfs_objects="catia fruit streams_xattr $vfs_objects"
+			printf "\tfruit:encoding = native\n"
+			printf "\tfruit:metadata = stream\n"
+			printf "\tfruit:veto_appledouble = no\n"
+			# avoid mixed shares order for aapl
+			if [ "$timemachine" -eq 1 ]; then
+				printf "\tfruit:time machine = yes\n"
+				[ -n "$timemachine_maxsize" ] && printf "\tfruit:time machine max size = %sG\n" "${timemachine_maxsize}"
+			fi
+		fi
+		
+		# always enable io_uring if we can ("should" fail silently via samba module load if no kernel support)
+		if [ "$DISABLE_ASYNC_IO" -ne 1 ] && [ -e /usr/lib/samba/vfs/io_uring.so ] ; then
+			logger -p daemon.info -t 'samba4-server' "io_uring module found, enabling VFS io_uring. (also needs Kernel 5.4+ Support)"
+			# make sure its last in list
+			if [ -n "$vfs_objects" ]; then
+				vfs_objects="$vfs_objects io_uring"
+			else
+				vfs_objects="io_uring"
+			fi
+		fi
+
+		[ -n "$vfs_objects" ] && printf "\tvfs objects = %s\n" "$vfs_objects"
+	} >> /var/etc/smb.conf
+}
+
+init_config() {
+	# Create samba dirs
+	[ -d /var/lib/samba ] || mkdir -m 755 -p /var/lib/samba
+	[ -d /var/cache/samba ] || mkdir -m 755 -p /var/cache/samba
+	[ -d /var/lock ] || mkdir -m 755 -p /var/lock
+	[ -d /var/run/samba ] || mkdir -p /var/run/samba
+	[ -d /var/log/samba ] || mkdir -p /var/log/samba
+	chmod 0755 /var/lock
+	chmod 0755 /var/lib/samba
+	chmod 0755 /var/cache/samba
+
+	config_load samba4
+	config_foreach smb_header samba
+	config_foreach smb_add_share sambashare
+}
+
+service_triggers() {
+	# PROCD_RELOAD_DELAY=1000
+
+	procd_add_reload_trigger "dhcp" "system" "samba4"
+
+	for i in $SAMBA_IFACE; do
+		procd_add_reload_interface_trigger "$i"
+	done
+}
+
+start_service() {
+	init_config
+	
+	if [ ! -e /etc/samba/smb.conf ]; then
+		logger -p daemon.error -t 'samba4-server' "missing config /etc/samba/smb.conf!"
+		exit 1
+	fi
+
+	config_get_sane nice_value extra samba_nice 0
+
+	# start main AD-DC daemon, will spawn (smbd,nmbd,winbindd) as needed/configured.
+	if [ "$DISABLE_AD_DC" -ne 1 ] && [ -x /usr/sbin/samba ]; then
+		procd_open_instance
+		procd_set_param command /usr/sbin/samba -F
+		procd_set_param nice "$nice_value"
+		procd_set_param respawn
+		procd_set_param file /etc/samba/smb.conf
+		procd_set_param limits nofile=16384
+		procd_close_instance
+	else
+		# start fileserver daemon
+		procd_open_instance
+		procd_set_param command /usr/sbin/smbd -F
+		procd_set_param nice "$nice_value"
+		procd_set_param respawn
+		procd_set_param file /etc/samba/smb.conf
+		procd_set_param limits nofile=16384
+		procd_close_instance
+
+		# start netbios daemon
+		if [ "$DISABLE_NETBIOS" -ne 1 ] && [ -x /usr/sbin/nmbd ]; then
+			procd_open_instance
+			procd_set_param command /usr/sbin/nmbd -F
+			procd_set_param nice "$nice_value"
+			procd_set_param respawn
+			procd_set_param file /etc/samba/smb.conf
+			procd_close_instance
+		fi
+		# start winbind daemon
+		if [ "$DISABLE_WINBIND" -ne 1 ] && [ -x /usr/sbin/winbindd ]; then
+			procd_open_instance
+			procd_set_param command /usr/sbin/winbindd -F
+			procd_set_param nice "$nice_value"
+			procd_set_param respawn
+			procd_set_param file /etc/samba/smb.conf
+			procd_close_instance
+		fi
+	fi
+}