include $(TOPDIR)/rules.mk

PKG_NAME:=urngd
PKG_RELEASE:=1

PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL=https://github.com/ynezz/openwrt-urngd
PKG_SOURCE_DATE:=2019-05-27
PKG_SOURCE_VERSION:=41e4163b2e7f4c1c1f51cdfa487d6052ff859cf2
PKG_MIRROR_HASH:=303595b7ec7367264a159dbd26d1d18c7ee3cf5e10bab25a315a7ec621b80ab4

PKG_LICENSE:=GPL-2.0 BSD-3-Clause
PKG_LICENSE_FILES:=

PKG_BUILD_PARALLEL:=1

include $(INCLUDE_DIR)/package.mk
include $(INCLUDE_DIR)/cmake.mk

define Package/$(PKG_NAME)
  SECTION:=utils
  CATEGORY:=Base system
  TITLE:=OpenWrt non-physical true random number generator based on timing jitter
  DEPENDS:=+libubox
endef

define Package/$(PKG_NAME)/description
  urngd is OpenWrt's micro non-physical true random number generator based on
  timing jitter.

  Using the Jitter RNG core, the rngd provides an entropy source that feeds into
  the Linux /dev/random device if its entropy runs low. It updates the
  /dev/random entropy estimator such that the newly provided entropy unblocks
  /dev/random.

  The seeding of /dev/random also ensures that /dev/urandom benefits from
  entropy. Especially during boot time, when the entropy of Linux is low, the
  Jitter RNGd provides a source of sufficient entropy.
endef

define Package/$(PKG_NAME)/install
	$(INSTALL_DIR) $(1)/etc/init.d
	$(INSTALL_BIN) ./files/$(PKG_NAME).init $(1)/etc/init.d/$(PKG_NAME)
	$(INSTALL_DIR) $(1)/sbin
	$(INSTALL_BIN) $(PKG_BUILD_DIR)/$(PKG_NAME) $(1)/sbin/$(PKG_NAME)
endef

$(eval $(call BuildPackage,$(PKG_NAME)))