From 2dc9c8206b7a452ab6977945206ce9384b2d5f3f Mon Sep 17 00:00:00 2001
From: Martin Schiller <ms@dev.tdt.de>
Date: Mon, 9 Oct 2017 08:26:01 +0200
Subject: [PATCH] lantiq: xrx200: rename nas0/ptm0 to dsl0

This change makes it possible to configure the wan/dsl ppp interface
settings independantly from the used TC-Layer (ATM/PTM).

Now you can move a device from an ADSL/ATM port to an VDSL/PTM port
without any configuration changes for example.

Signed-off-by: Martin Schiller <ms@dev.tdt.de>
[use the dsl0 interface name for the default netdev trigger in 01_led,
add ip dependency]
Signed-off-by: Mathias Kresin <dev@kresin.me>
---
 package/network/config/ltq-vdsl-app/Makefile  |  5 +-
 .../config/ltq-vdsl-app/files/10-xdsl_rename  |  7 +++
 .../lantiq/base-files/etc/board.d/01_leds     |  2 +-
 .../lantiq/base-files/etc/board.d/02_network  |  2 +-
 .../etc/uci-defaults/02_migrate_xdsl_iface    | 57 +++++++++++++++++++
 5 files changed, 69 insertions(+), 4 deletions(-)
 create mode 100644 package/network/config/ltq-vdsl-app/files/10-xdsl_rename
 create mode 100644 target/linux/lantiq/base-files/etc/uci-defaults/02_migrate_xdsl_iface

diff --git a/package/network/config/ltq-vdsl-app/Makefile b/package/network/config/ltq-vdsl-app/Makefile
index 20b506c48e..baf63f9d13 100644
--- a/package/network/config/ltq-vdsl-app/Makefile
+++ b/package/network/config/ltq-vdsl-app/Makefile
@@ -28,7 +28,7 @@ define Package/ltq-vdsl-app
   CATEGORY:=Network
   TITLE:=Lantiq VDSL userland tool
   URL:=http://www.lantiq.com/
-  DEPENDS:=@TARGET_lantiq_xrx200 +libpthread +librt
+  DEPENDS:=@TARGET_lantiq_xrx200 +libpthread +librt +ip
 endef
 
 define Package/ltq-vdsl-app/description
@@ -58,10 +58,11 @@ CONFIGURE_ARGS += \
 #CONFIGURE_ARGS += --enable-model=debug
 
 define Package/ltq-vdsl-app/install
-	$(INSTALL_DIR) $(1)/etc/init.d $(1)/sbin $(1)/etc/hotplug.d/dsl
+	$(INSTALL_DIR) $(1)/etc/init.d $(1)/sbin $(1)/etc/hotplug.d/dsl $(1)/etc/hotplug.d/net
 	$(INSTALL_BIN) ./files/dsl_control $(1)/etc/init.d/
 	$(INSTALL_BIN) ./files/10_atm.sh $(1)/etc/hotplug.d/dsl
 	$(INSTALL_BIN) ./files/10_ptm.sh $(1)/etc/hotplug.d/dsl
+	$(INSTALL_BIN) ./files/10-xdsl_rename $(1)/etc/hotplug.d/net
 
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/src/dsl_cpe_control $(1)/sbin/vdsl_cpe_control
 	$(INSTALL_BIN) ./files/dsl_cpe_pipe.sh $(1)/sbin/
diff --git a/package/network/config/ltq-vdsl-app/files/10-xdsl_rename b/package/network/config/ltq-vdsl-app/files/10-xdsl_rename
new file mode 100644
index 0000000000..faa5911aa7
--- /dev/null
+++ b/package/network/config/ltq-vdsl-app/files/10-xdsl_rename
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+if [ "$ACTION" = add ]; then
+	[ "$DEVICENAME" = "nas0" ] ||[ "$DEVICENAME" = "ptm0" ] || exit
+
+	ip link set $DEVICENAME name dsl0
+fi
diff --git a/target/linux/lantiq/base-files/etc/board.d/01_leds b/target/linux/lantiq/base-files/etc/board.d/01_leds
index 817e2e91c5..3584b0be60 100755
--- a/target/linux/lantiq/base-files/etc/board.d/01_leds
+++ b/target/linux/lantiq/base-files/etc/board.d/01_leds
@@ -21,7 +21,7 @@ led_usb2="$(lantiq_get_dt_led usb2)"
 led_dsl="$(lantiq_get_dt_led dsl)"
 [ -n "$led_dsl" ] && {
 	interface="nas0"
-	lantiq_is_vdsl_system && interface="ptm0"
+	lantiq_is_vdsl_system && interface="dsl0"
 
 	led_internet="$(lantiq_get_dt_led internet)"
 	if [ -n "$led_internet" ]; then
diff --git a/target/linux/lantiq/base-files/etc/board.d/02_network b/target/linux/lantiq/base-files/etc/board.d/02_network
index 2feeb9c208..bc5c410e65 100755
--- a/target/linux/lantiq/base-files/etc/board.d/02_network
+++ b/target/linux/lantiq/base-files/etc/board.d/02_network
@@ -199,7 +199,7 @@ ls /lib/modules/$(uname -r)/ltq_atm* 1> /dev/null 2>&1 && \
 	ucidef_add_atm_bridge "$vpi" "$vci" "$encaps" "$payload"
 
 if lantiq_is_vdsl_system; then
-	interface_wan="ptm0"
+	interface_wan="dsl0"
 	ucidef_add_vdsl_modem "$annex" "$tone" "$xfer_mode"
 else
 	interface_wan="nas0"
diff --git a/target/linux/lantiq/base-files/etc/uci-defaults/02_migrate_xdsl_iface b/target/linux/lantiq/base-files/etc/uci-defaults/02_migrate_xdsl_iface
new file mode 100644
index 0000000000..1a7cd337e7
--- /dev/null
+++ b/target/linux/lantiq/base-files/etc/uci-defaults/02_migrate_xdsl_iface
@@ -0,0 +1,57 @@
+#!/bin/sh
+
+. /lib/functions.sh
+. /lib/functions/lantiq.sh
+
+IFNAME_CHANGED=0
+
+rename_xdsl_ifname()
+{
+	local cfg="$1"
+	local section="$2"
+	local option="$3"
+	local name
+
+	config_get name ${section} $option
+	case $name in
+		nas0*)
+			name=${name/nas0/dsl0}
+			;;
+		ptm0*)
+			name=${name/ptm0/dsl0}
+			;;
+		*)
+			return
+			;;
+	esac
+
+	uci set ${cfg}.${section}.$option=$name
+	IFNAME_CHANGED=1
+}
+
+migrate_network_xdsl_ifname()
+{
+	rename_xdsl_ifname network "$1" ifname
+	rename_xdsl_ifname network "$1" name
+}
+
+migrate_led_xdsl_ifname()
+{
+	rename_xdsl_ifname system "$1" dev
+}
+
+lantiq_is_vdsl_system || exit 0
+
+config_load network
+config_foreach migrate_network_xdsl_ifname
+
+[ "$IFNAME_CHANGED" = "1" ] && uci commit network
+
+IFNAME_CHANGED=0
+
+config_load system
+config_foreach migrate_led_xdsl_ifname led
+
+[ "$IFNAME_CHANGED" = "1" ] && uci commit system
+
+exit 0