added my Recipes

meta-st/meta-st-openstlinux/recipes-support/rng-tools/rng-tools/71-hwrng.rules

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+SUBSYSTEM=="misc", KERNEL=="hw_random", TAG+="systemd", ENV{SYSTEMD_WANTS}+="hwrng.device"

meta-st/meta-st-openstlinux/recipes-support/rng-tools/rng-tools/rng-tools.service

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+[Unit]
+Description=Hardware RNG Entropy Gatherer Daemon
+DefaultDependencies=no
+Conflicts=shutdown.target
+Before=sysinit.target shutdown.target
+ConditionVirtualization=!container
+Wants=dev-hwrng.device
+After=dev-hwrng.device
+After=systemd-udevd.service
+
+[Service]
+EnvironmentFile=-/etc/default/rng-tools
+ExecStart=/usr/sbin/rngd -f $EXTRA_ARGS
+CapabilityBoundingSet=CAP_SYS_ADMIN
+IPAddressDeny=any
+LockPersonality=yes
+MemoryDenyWriteExecute=yes
+NoNewPrivileges=yes
+PrivateTmp=yes
+ProtectControlGroups=yes
+ProtectHome=yes
+ProtectHostname=yes
+ProtectKernelModules=yes
+ProtectKernelLogs=yes
+ProtectSystem=strict
+RestrictAddressFamilies=AF_UNIX
+RestrictNamespaces=yes
+RestrictRealtime=yes
+RestrictSUIDSGID=yes
+SystemCallArchitectures=native
+SystemCallErrorNumber=EPERM
+SystemCallFilter=@system-service
+
+[Install]
+WantedBy=sysinit.target

meta-st/meta-st-openstlinux/recipes-support/rng-tools/rng-tools_%.bbappend

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+FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:"
+
+PACKAGECONFIG:remove = "libjitterentropy"
+
+SRC_URI += " \
+    file://71-hwrng.rules \
+    file://rng-tools.service \
+"
+
+do_install:append() {
+    # install udev rule
+    install -D -p -m0644 ${WORKDIR}/71-hwrng.rules ${D}${sysconfdir}/udev/rules.d/71-hwrng.rules
+}
+FILES:${PN}-service += "${sysconfdir}/udev"