config: add VERSION_FIRMWARE_URL

This new value points to where firmware can be downloaded. It's not
about a single release but all available firmware releases.

In the next step, this URL should be exposed via `ubus call system
board` as an entry of the `distribution` field. With that value, the
running firmware can check for newer releases.

We already have VERSION_REPO however that's different and only meant for
package managers to download their fitting package indexes/packages.

Signed-off-by: Paul Spooren <mail@aparcar.org>
Link: https://github.com/openwrt/openwrt/pull/17780
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>

include/version.mk

@@ -18,6 +18,7 @@ PKG_CONFIG_DEPENDS += \
 	CONFIG_VERSION_MANUFACTURER_URL \
 	CONFIG_VERSION_PRODUCT \
 	CONFIG_VERSION_SUPPORT_URL \
+	CONFIG_VERSION_FIRMWARE_URL \
 	CONFIG_VERSION_HWREV \
 
 sanitize = $(call tolower,$(subst _,-,$(subst $(space),-,$(1))))
@@ -50,6 +51,9 @@ VERSION_HOME_URL:=$(if $(VERSION_HOME_URL),$(VERSION_HOME_URL),https://openwrt.o
 VERSION_SUPPORT_URL:=$(call qstrip,$(CONFIG_VERSION_SUPPORT_URL))
 VERSION_SUPPORT_URL:=$(if $(VERSION_SUPPORT_URL),$(VERSION_SUPPORT_URL),https://forum.openwrt.org/)
 
+VERSION_FIRMWARE_URL:=$(call qstrip,$(CONFIG_VERSION_FIRMWARE_URL))
+VERSION_FIRMWARE_URL:=$(if $(VERSION_FIRMWARE_URL),$(VERSION_FIRMWARE_URL),https://downloads.openwrt.org/)
+
 VERSION_PRODUCT:=$(call qstrip,$(CONFIG_VERSION_PRODUCT))
 VERSION_PRODUCT:=$(if $(VERSION_PRODUCT),$(VERSION_PRODUCT),Generic)
 
@@ -103,7 +107,7 @@ VERSION_SED_SCRIPT:=$(SED) 's,%U,$(call sed_escape,$(VERSION_REPO)),g' \
 	-e 's,%b,$(call sed_escape,$(VERSION_BUG_URL)),g' \
 	-e 's,%u,$(call sed_escape,$(VERSION_HOME_URL)),g' \
 	-e 's,%s,$(call sed_escape,$(VERSION_SUPPORT_URL)),g' \
+	-e 's,%f,$(call sed_escape,$(VERSION_FIRMWARE_URL)),g' \
 	-e 's,%P,$(call sed_escape,$(VERSION_PRODUCT)),g' \
 	-e 's,%h,$(call sed_escape,$(VERSION_HWREV)),g' \
 	-e 's,%B,$(call sed_escape,$(SOURCE_DATE_EPOCH)),g'
-

package/base-files/files/usr/lib/os-release

@@ -7,6 +7,7 @@ VERSION_ID="%v"
 HOME_URL="%u"
 BUG_URL="%b"
 SUPPORT_URL="%s"
+FIRMWARE_URL="%f"
 BUILD_ID="%R"
 OPENWRT_BOARD="%S"
 OPENWRT_ARCH="%A"

package/base-files/image-config.in

@@ -241,6 +241,12 @@ if VERSIONOPT
 		help
 			This an URL to provide users seeking support
 
+	config VERSION_FIRMWARE_URL
+		string
+		prompt "Firmware URL"
+		help
+			This is an URL to provide users for downloading firmware
+
 	config VERSION_PRODUCT
 		string
 		prompt "Product name"