brcm47xx: migrate basic network settings from old releases

Old OpenWrt releases were using network configs that are not valid
anymore. They were specifying ports tagging in a different way (or were
not tagging CPU at all) and were using VID 0 which is a reserved value.

Modifying network configuration to apply all needed changes would be
pretty tricky. Script /etc/init.d/netconfig that generates new config is
quite complex itself.
So instead let's save the most important settings, regenerate config
from the scratch and restore values. This should work for 99% of users.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 41500

diff --git a/target/linux/brcm47xx/base-files/etc/uci-defaults/03_network_migration b/target/linux/brcm47xx/base-files/etc/uci-defaults/03_network_migration
new file mode 100644 (file)
index 0000000..cef5add
--- /dev/null
+++ b/target/linux/brcm47xx/base-files/etc/uci-defaults/03_network_migration
@@ -0,0 +1,29 @@
+#!/bin/sh
+#
+# Copyright (C) 2014 OpenWrt.org
+#
+
+uci show network | grep "\.vlan=0"
+[ $? -ne 0 ] && exit 0
+
+logger -t network "network config is invalid, creating new one"
+
+local lan_proto="$(uci -q get network.lan.proto)"
+local lan_ipaddr="$(uci -q get network.lan.ipaddr)"
+local lan_netmask="$(uci -q get network.lan.netmask)"
+local wan_proto="$(uci -q get network.wan.proto)"
+local wan_ipaddr="$(uci -q get network.wan.ipaddr)"
+local wan_netmask="$(uci -q get network.wan.netmask)"
+
+rm /etc/config/network
+/etc/init.d/netconfig start
+
+uci set network.lan.proto=$lan_proto
+uci set network.lan.ipaddr=$lan_ipaddr
+uci set network.lan.netmask=$lan_netmask
+uci set network.wan.proto=$wan_proto
+uci set network.wan.ipaddr=$wan_ipaddr
+uci set network.wan.netmask=$wan_netmask
+uci commit network
+
+exit 0