dhcpmngr: add dhcpmngr package to iopsys feed

* add Makefile
* move udhcpc.user.d script used for remaining dhcp lease time to
  this package

dhcpmngr/Makefile

@@ -0,0 +1,50 @@
+#
+# Copyright (C) 2024 IOPSYS Software Solutions AB
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=dhcpmngr
+PKG_VERSION:=1.0.0
+
+LOCAL_DEV:=0
+ifneq ($(LOCAL_DEV),1)
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=https://dev.iopsys.eu/network/dhcpmngr.git
+PKG_SOURCE_VERSION:=4ac13351a17b8d70f353549756f5fde4996dd134
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
+PKG_MIRROR_HASH:=skip
+endif
+
+PKG_LICENSE:=BSD-3-Clause
+PKG_LICENSE_FILES:=LICENSE
+
+include $(INCLUDE_DIR)/package.mk
+include ../bbfdm/bbfdm.mk
+
+MAKE_PATH:=src
+
+define Package/dhcpmngr
+  SECTION:=net
+  CATEGORY:=Network
+  TITLE:=Package to add Device.DHCPv4 and v6 data model support.
+  DEPENDS:=+libuci +libubox +libubus +libblobmsg-json +libjson-c +libbbfdm-api +dnsmasq
+endef
+
+define Package/dhcpmngr/description
+  Package to add Device.DHCPv4. and Device.DHCPv6. data model support.
+endef
+
+ifeq ($(LOCAL_DEV),1)
+define Build/Prepare
+	$(CP) -rf ~/git/dhcpmngr/* $(PKG_BUILD_DIR)/
+endef
+endif
+
+define Package/dhcpmngr/install
+	$(INSTALL_DIR) $(1)/etc/udhcpc.user.d
+	$(INSTALL_BIN) ./files/etc/udhcpc.user.d/udhcpc_lease_start_time.user $(1)/etc/udhcpc.user.d/udhcpc_lease_start_time.user
+	$(BBFDM_INSTALL_MS_DM) $(PKG_BUILD_DIR)/src/libdhcpmngr.so $(1) $(PKG_NAME)
+endef
+
+$(eval $(call BuildPackage,dhcpmngr))

dhcpmngr/files/etc/udhcpc.user.d/udhcpc_lease_start_time.user

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+leasestarttime="$(awk -F'.' '{print $1}' /proc/uptime 2> /dev/null)"
+target_file=/tmp/dhcp_client_info
+target_str="$INTERFACE $lease $leasestarttime"
+
+# if this interface is present in file, then replace it
+if grep -q "$INTERFACE" "$target_file" 2> /dev/null; then
+	# replace the whole line if pattern matches
+	sed -i "/${INTERFACE}/c\\${target_str}" "$target_file"
+else
+	# interface info was not present, append it to the file
+	echo "$target_str" >> "$target_file"
+fi