procd: bump to latest HEAD

2188d81 jail: add support for launching extroot containers
 6f3dbd2 jail: add support for userns and cgroupsns
 28a06e5 jail: add support for (ram-)overlayfs

Add handling for extroot, overlaydir and tmpoverlaysize as well as
jail flags for userns and cgroupsns to OpenWrt's shell script to
allow their use in init scripts.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/system/procd/Makefile

@@ -12,9 +12,9 @@ PKG_RELEASE:=1
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/procd.git
-PKG_SOURCE_DATE:=2020-03-13
-PKG_SOURCE_VERSION:=77a6782d6e4eba2c49e642672de134aff443ef72
-PKG_MIRROR_HASH:=bb7e98a6b6f997a4fa2fb924be248febe5a7633601df2e97e7a7513c57b63870
+PKG_SOURCE_DATE:=2020-04-09
+PKG_SOURCE_VERSION:=28a06e55cd4235faf52638dd85709e3da04c5c06
+PKG_MIRROR_HASH:=f747393e2208888fdb15444d0fad354f46e47cccc393fd408e8cb1c51ef1dfc8
 CMAKE_INSTALL:=1
 
 PKG_LICENSE:=GPL-2.0

package/system/procd/files/procd.sh

@@ -196,6 +196,8 @@ _procd_add_jail() {
 		ronly)	json_add_boolean "ronly" "1";;
 		requirejail)	json_add_boolean "requirejail" "1";;
 		netns)	json_add_boolean "netns" "1";;
+		userns)	json_add_boolean "userns" "1";;
+		cgroupsns)	json_add_boolean "cgroupsns" "1";;
 		esac
 	done
 	json_add_object "mount"
@@ -258,7 +260,8 @@ _procd_set_param() {
 		reload_signal)
 			json_add_int "$type" $(kill -l "$1")
 		;;
-		pidfile|user|group|seccomp|capabilities|facility)
+		pidfile|user|group|seccomp|capabilities|facility|\
+		extroot|overlaydir|tmpoverlaysize)
 			json_add_string "$type" "$1"
 		;;
 		stdout|stderr|no_new_privs)