ufp: add a device fingerprinting daemon

Add a daemon that can fingerprint devices based on DHCP, MDNS and WiFi
signatures.

Sample output looks like the following.
{
	"04:99:b9:XX:YY:ZZ": {
		"device": "HomePod mini",
		"vendor": "Apple",
		"class": "speaker",
		"device_name": "Kitchen"
	},
		"c4:65:16:XX:YY:ZZ": {
		"vendor": "HP",
		"device": "OfficeJet Pro 9010 series",
		"class": "Printer"
	}
}

Signed-off-by: John Crispin <john@phrozen.org>

utils/ufp/Makefile

@@ -0,0 +1,64 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ufp
+PKG_RELEASE:=1
+
+PKG_LICENSE:=GPL-2.0
+PKG_MAINTAINER:=Felix Fietkau <nbd@nbd.name>
+
+PKG_SOURCE_URL=https://git.openwrt.org/project/ufp.git
+PKG_MIRROR_HASH:=fcd87491f3a1bbfc3545e7c418355e1e7d30bf08b51370507b761b33907a6e84
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_DATE:=2025-06-21
+PKG_SOURCE_VERSION:=0b867c8cf579389bcb7d0eb89aa9668a0ad9b6c5
+
+HOST_BUILD_DEPENDS:=ucode/host libubox/host
+PKG_BUILD_DEPENDS:=bpf-headers ufp/host
+UCODE:=LD_LIBRARY_PATH=$(LD_LIBRARY_PATH):$(STAGING_DIR_HOSTPKG)/lib/:$(STAGING_DIR_HOST)/lib/ $(STAGING_DIR_HOSTPKG)/bin/ucode
+
+CMAKE_SOURCE_SUBDIR:=src
+
+include $(INCLUDE_DIR)/host-build.mk
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/cmake.mk
+
+define Package/ufp
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Device fingerprinting daemon
+  DEPENDS:=+ucode +ucode-mod-fs +ucode-mod-struct +libubox +udhcpsnoop +unetmsg
+endef
+
+define Package/ufp-neigh
+  SECTION:=utils
+  CATEGORY:=Utilities
+  TITLE:=Device fingerprinting daemon (OUI plugin)
+  DEPENDS:=+ufp
+endef
+
+define Package/ufp/conffiles
+/etc/config/ufp
+endef
+
+CMAKE_HOST_OPTIONS += \
+	-DCMAKE_SKIP_RPATH=FALSE \
+	-DCMAKE_INSTALL_RPATH="${STAGING_DIR_HOST}/lib"
+
+define Package/ufp/install
+	$(INSTALL_DIR) $(1)/usr/lib/ucode $(1)/usr/share/ufp $(1)/usr/sbin/
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/ucode/uht.so $(1)/usr/lib/ucode/
+	$(UCODE) $(PKG_BUILD_DIR)/scripts/convert-devices.uc $(1)/usr/share/ufp/devices.bin $(PKG_BUILD_DIR)/data/*.json
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/ufpd $(1)/usr/sbin
+	$(INSTALL_DATA) $(PKG_BUILD_DIR)/plugins/* $(1)/usr/share/ufp
+	$(CP) ./files/* $(1)/
+endef
+
+define Package/ufp-neigh/install
+	$(INSTALL_DIR) $(1)/usr/share/ufp/db/
+	$(INSTALL_DATA) $(PKG_BUILD_DIR)/modules/plugin_neigh.uc $(1)/usr/share/ufp
+	$(UCODE) $(PKG_BUILD_DIR)/scripts/convert-devices.uc $(1)/usr/share/ufp/db/oui.bin $(PKG_BUILD_DIR)/modules/oui.json
+endef
+
+$(eval $(call BuildPackage,ufp))
+$(eval $(call BuildPackage,ufp-neigh))
+$(eval $(call HostBuild))

utils/ufp/files/etc/init.d/ufp

@@ -0,0 +1,14 @@
+#!/bin/sh /etc/rc.common
+# Copyright (c) 2021 OpenWrt.org
+
+START=80
+
+USE_PROCD=1
+PROG=/usr/sbin/ufpd
+
+start_service() {
+	procd_open_instance
+	procd_set_param command "$PROG"
+	procd_set_param respawn
+	procd_close_instance
+}