packages/fff: introduce fff-defaults for selected packages

In principle, the uci-defaults files are meant for providing standard
values for a specific package. Our firmware is effectively abusing
this concept by using uci-defaults to set defaults for _other_
packages, e.g. fff-dhcp setting defaults for dnsmasq.

While this works relatively well for the current firmware, it
completely breaks apart if the packages are used as a feed for
vanilla OpenWrt.
Thus, in preparation for making the packages available for such a
scenario (read: "use packages as packages"), this moves all custom
defaults we set for other packages to a directory "fff-defaults".
If the firmware is built with buildscript (and sets the new
FFF_VARIANT variable), this is copied back to uci-defaults as usual.
But without that script, we now have "our" config in a dedicated
directory where we can use it otherwise as well.

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

src/packages/fff/fff-babeld/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-babeld
-PKG_RELEASE:=6
+PKG_RELEASE:=7
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -24,6 +24,9 @@ endef
 
 define Package/fff-babeld/install
 	$(CP) ./files/* $(1)/
+ifneq ($(FFF_VARIANT),)
+	mv $(1)/etc/fff-defaults $(1)/etc/uci-defaults
+endif
 endef
 
 $(eval $(call BuildPackage,fff-babeld))

src/packages/fff/fff-dhcp/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-dhcp
-PKG_RELEASE:=4
+PKG_RELEASE:=5
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -24,6 +24,9 @@ endef
 
 define Package/fff-dhcp/install
 	$(CP) ./files/* $(1)/
+ifneq ($(FFF_VARIANT),)
+	mv $(1)/etc/fff-defaults $(1)/etc/uci-defaults
+endif
 endef
 
 $(eval $(call BuildPackage,fff-dhcp))

src/packages/fff/fff-ra/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-ra
-PKG_RELEASE:=3
+PKG_RELEASE:=4
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -24,6 +24,9 @@ endef
 
 define Package/fff-ra/install
 	$(CP) ./files/* $(1)/
+ifneq ($(FFF_VARIANT),)
+	mv $(1)/etc/fff-defaults $(1)/etc/uci-defaults
+endif
 endef
 
 $(eval $(call BuildPackage,fff-ra))

src/packages/fff/fff-wireguard/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-wireguard
-PKG_RELEASE:=5
+PKG_RELEASE:=6
 
 include $(INCLUDE_DIR)/package.mk
 
@@ -28,6 +28,9 @@ endef
 
 define Package/fff-wireguard/install
 	$(CP) ./files/* $(1)/
+ifneq ($(FFF_VARIANT),)
+	mv $(1)/etc/fff-defaults $(1)/etc/uci-defaults
+endif
 endef
 
 $(eval $(call BuildPackage,fff-wireguard))