package/iwd: add optional iwmon support

- add option for iwmon support
- enable linux kernel CONFIG_NLMON option needed for iwmon

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Julien Olivain <ju.o@free.fr>

package/iwd/Config.in

@@ -13,6 +13,15 @@ config BR2_PACKAGE_IWD
 
 	  https://iwd.wiki.kernel.org/
 
+if BR2_PACKAGE_IWD
+
+config BR2_PACKAGE_IWD_IWMON
+	bool "iwmon"
+	help
+	  iwmon - Internet wireless monitor utility
+
+endif
+
 comment "iwd needs a toolchain w/ threads, wchar, headers >= 4.12"
 	depends on BR2_USE_MMU # dbus
 	depends on BR2_TOOLCHAIN_HAS_SYNC_4 # ell

package/iwd/iwd.mk

@@ -41,6 +41,15 @@ else
 IWD_RESOLV_SERVICE = resolvconf
 endif
 
+ifeq ($(BR2_PACKAGE_IWD_IWMON),y)
+IWD_CONF_OPTS += --enable-monitor
+define IWD_LINUX_CONFIG_FIXUP_MONITOR
+	$(call KCONFIG_ENABLE_OPT,CONFIG_NLMON)
+endef
+else
+IWD_CONF_OPTS += --disable-monitor
+endif
+
 define IWD_INSTALL_CONFIG_FILE
 	$(INSTALL) -D -m 644 package/iwd/main.conf $(TARGET_DIR)/etc/iwd/main.conf
 	$(SED) 's,__RESOLV_SERVICE__,$(IWD_RESOLV_SERVICE),' $(TARGET_DIR)/etc/iwd/main.conf
@@ -76,6 +85,7 @@ define IWD_LINUX_CONFIG_FIXUPS
 	$(call KCONFIG_ENABLE_OPT,CONFIG_PKCS7_MESSAGE_PARSER)
 	$(call KCONFIG_ENABLE_OPT,CONFIG_PKCS8_PRIVATE_KEY_PARSER)
 	$(call KCONFIG_ENABLE_OPT,CONFIG_X509_CERTIFICATE_PARSER)
+	$(IWD_LINUX_CONFIG_FIXUP_MONITOR)
 endef
 
 $(eval $(autotools-package))