modemmanager: Remove hardcoded proto check

Modified the code to correctly determine modem availability based on the
sysfs path provided in the 'device' option, instead of relying  on the
'proto' value. This ensures proper configuration for custom-made protos
that do not match the "modemmanager" identifier.

Signed-off-by: Oliver Sedlbauer <osedlbauer@tdt.de>

net/modemmanager/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=modemmanager
 PKG_SOURCE_VERSION:=1.20.6
-PKG_RELEASE:=12
+PKG_RELEASE:=13
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL:=https://gitlab.freedesktop.org/mobile-broadband/ModemManager.git

net/modemmanager/files/modemmanager.common

@@ -6,6 +6,7 @@
 
 . /lib/functions.sh
 . /lib/netifd/netifd-proto.sh
+INCLUDE_ONLY=1 . /lib/netifd/proto/modemmanager.sh
 
 ################################################################################
 # Runtime state
@@ -139,10 +140,6 @@ mm_get_modem_config_foreach_cb() {
 	local cfg="$1"
 	local sysfspath="$2"
 
-	local proto
-	config_get proto "${cfg}" proto
-	[ "${proto}" = modemmanager ] || return 0
-
 	local dev
 	dev=$(uci_get network "${cfg}" device)
 	[ "${dev}" = "${sysfspath}" ] || return 0
@@ -237,19 +234,25 @@ mm_report_modem_wait() {
 ################################################################################
 # Cleanup interfaces
 
-mm_cleanup_interface_cb() {
-	local cfg="$1"
-
-	local proto
-	config_get proto "${cfg}" proto
-	[ "${proto}" = modemmanager ] || return 0
-
-	proto_set_available "${cfg}" 0
-}
-
 mm_cleanup_interfaces() {
-	config_load network
+	local modemlist modemlength idx modeminfo modemsysfspath
-	config_foreach mm_cleanup_interface_cb interface
+
+	modemlist=$(mmcli --list-modems --output-keyvalue)
+	[ -n "${modemlist}" ] || return 0
+
+	modemlength=$(modemmanager_get_field "${modemlist}" "modem-list.length")
+
+	# do nothing if no modem reported
+	[ -n "${modemlength}" ] && [ "${modemlength}" -ge 1 ] && {
+		idx=1
+		while [ $idx -le "$modemlength" ]; do
+			modempath=$(modemmanager_get_field "${modemlist}" "modem-list.value\[$idx\]")
+			modeminfo=$(mmcli --modem "${modempath}" --output-keyvalue)
+			modemsysfspath=$(modemmanager_get_field "${modeminfo}" "modem.generic.device")
+			mm_cleanup_interface_by_sysfspath "${modemsysfspath}"
+			idx=$((idx + 1))
+		done
+	}
 }
 
 mm_cleanup_interface_by_sysfspath() {