cifsd: update to git (2019-11-27), fix reload/restart not applying smb.conf changes

* fix reload/restart not applying luci/smb.conf changes
* remove hotfix for 'read only = no' (fixed by upstream)
* update documentation, example
*cifsd: fix the lost of dos file attributes
*cifsd: store FILE_ATTRIBUTE_SPARSE into xattr
*cifsd: release v2.0.2
*cifsd-tools: add smb.conf.list file to show supported parameters list
*cifsd-tools: set CIFSD_SHARE_FLAG_WRITEABLE flags if read only = no
*cifsd-tools: release cifsd-tools v2.0.2

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

kernel/cifsd/Makefile

@@ -5,9 +5,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/cifsd-team/cifsd.git
-PKG_SOURCE_DATE:=2019-11-22
-PKG_SOURCE_VERSION:=511ee7e852c0be06b74fbb3eba69760b86658679
-PKG_MIRROR_HASH:=23040d73230ff6afcea46cf9c51a1aab7b706859471de204da4824bfea5934c8
+PKG_SOURCE_DATE:=2019-11-27
+PKG_SOURCE_VERSION:=b8675c8ac144ece00f3e6bcc5436c8ace99e23e9
+PKG_MIRROR_HASH:=3d67af87f30d837f95510663efc42f1451651dc235987408924b56cb277fc8e8
 
 PKG_MAINTAINER:=Andy Walsh <andy.walsh44+github@gmail.com>
 PKG_LICENSE:=GPL-2.0-or-later

net/cifsd-tools/Makefile

@@ -5,9 +5,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://github.com/cifsd-team/cifsd-tools.git
-PKG_SOURCE_DATE:=2019-11-25
-PKG_SOURCE_VERSION:=49d0c40129fe22161999ffb7e059b90089f23078
-PKG_MIRROR_HASH:=cd3702f1387ab643233200dcf5c244989b6d6efa196c69e842791e434eb3eea7
+PKG_SOURCE_DATE:=2019-11-27
+PKG_SOURCE_VERSION:=06fd4153a5d5af1f96a20234f397bd149a8e4832
+PKG_MIRROR_HASH:=2849d2af471e327abc8d67afc91ca767c410e2b307d6554531a0b387d9ad909a
 
 PKG_MAINTAINER:=Andy Walsh <andy.walsh44+github@gmail.com>
 PKG_LICENSE:=GPL-2.0-or-later
@@ -46,7 +46,7 @@ define Package/cifsd-tools/install
 	$(INSTALL_BIN) ./files/cifsd.init $(1)/etc/init.d/cifsd
 	# copy examples until we have a wiki page
 	$(INSTALL_DATA) ./files/cifsd.config.example $(1)/etc/cifs/
-	$(INSTALL_DATA) ./files/smb.conf.help $(1)/etc/cifs/
+	$(INSTALL_DATA) $(PKG_BUILD_DIR)/Documentation/configuration.txt $(1)/etc/cifs/
 endef
 
 define Package/cifsd-tools/conffiles

net/cifsd-tools/files/cifsd.config.example

@@ -4,8 +4,8 @@ config globals
 config share
 	option name 'testshare'
 	option path '/tmp'
+	option read_only 'no'
 	option guest_ok 'yes'
 	option create_mask '0666'
 	option dir_mask '0777'
-	option writeable 'yes'
 	option force_root '1'

net/cifsd-tools/files/cifsd.init

@@ -103,12 +103,8 @@ smb_add_share()
 
 		[ -n "$browseable" ] && printf "\tbrowseable = %s\n" "$browseable"
 		[ -n "$read_only" ] && printf "\tread only = %s\n" "$read_only"
-		# possible upstream bug?
-		if [ "$read_only" = "no" ]; then
-			printf "\twriteable = yes\n"
-		else
-			[ -n "$writeable" ] && printf "\twriteable = %s\n" "$writeable"
-		fi
+		[ -n "$writeable" ] && printf "\twriteable = %s\n" "$writeable"
+
 		[ -n "$guest_ok" ] && printf "\tguest ok = %s\n" "$guest_ok"
 		[ -n "$inherit_owner" ] && printf "\tinherit owner = %s\n" "$inherit_owner"
 
@@ -153,6 +149,15 @@ start_service()
 		exit 1
 	fi
 
+	if [ -e /sys/module/cifsd ]; then
+		if [ -e /sys/class/cifsd-control/kill_server ]; then
+			# upstream "BUG": ensure changes in smb.conf are reflected on a running kernel-server
+			echo hard > /sys/class/cifsd-control/kill_server
+			# we need a extra timeout for the reset
+			sleep 5
+		fi
+	fi
+	
 	modprobe cifsd 2> /dev/null
 	if [ ! -e /sys/module/cifsd ]; then
 		logger -t 'cifsd' "modprobe of cifsd module failed, can\'t start cifsd!"
@@ -162,6 +167,7 @@ start_service()
 	logger -t 'cifsd' "Starting CIFS/SMB userspace service."
 	procd_open_instance
 	procd_set_param command /usr/sbin/cifsd --n
+	procd_set_param file /var/etc/cifs/smb.conf
 	procd_close_instance
 }
 
@@ -169,20 +175,33 @@ stop_service()
 {
 	logger -t 'cifsd' "Stopping CIFSD userspace service."
 	killall cifsd > /dev/null 2>&1
-	sleep 1
-	[ -e /sys/class/cifsd-control/kill_server ] && echo hard > /sys/class/cifsd-control/kill_server
-	sleep 2
+	
+	[ -e /sys/module/cifsd ] && rmmod cifsd > /dev/null 2>&1
+	# With open smb connections rmmod is not possible, without waiting for the long 'ipc timeout', so we use 'kill_server'!
+	if [ -e /sys/module/cifsd ]; then
+		logger -t 'cifsd' "triggering kill_server"
+		if [ -e /sys/class/cifsd-control/kill_server ]; then
+			echo hard > /sys/class/cifsd-control/kill_server
+			# we need a extra timeout for the reset
+			sleep 5
+		fi
+	fi
+	# next try
 	[ -e /sys/module/cifsd ] && rmmod cifsd > /dev/null 2>&1
-	# With open smb connections rmmod takes longer
+	# check again
 	if [ -e /sys/module/cifsd ]; then
-		sleep 5
-		rmmod cifsd > /dev/null 2>&1
+		# wait more...
+		sleep 3
+	fi
+	# last try
+	[ -e /sys/module/cifsd ] && rmmod cifsd > /dev/null 2>&1
+	
+	if [ -e /sys/module/cifsd ]; then
+		logger -t 'cifsd' "module still loaded after 8s timeout"
 	fi
 	[ -f /tmp/cifsd.lock ] && rm /tmp/cifsd.lock
 }
 
-reload_service() {
-	stop_service "$@"
-	sleep 1
-	start_service "$@"
-}
+# reload_service() {
+	# restart "$@"
+# }

net/cifsd-tools/files/smb.conf.template

@@ -4,6 +4,6 @@
 	workgroup = |WORKGROUP|
 	interfaces = |INTERFACES|
 	bind interfaces only = yes
-	ipc timeout = 8
+	ipc timeout = 20
 	deadtime = 15
 	map to guest = Bad User