From 40c53c655647a7125f9367152381ef62ce51a48b Mon Sep 17 00:00:00 2001
From: Daniel Dickinson <crazycshore@gmail.com>
Date: Sun, 30 May 2010 01:33:20 +0000
Subject: [PATCH] brcm63xx: Fixed vlan packet leakage in preinit for known
 devices with a switch on eth1 (currently only 96348GW - Tecom 6x00)

SVN-Revision: 21629
---
 .../05_failsafe_config_switch_brcm63xx        | 15 +++++++
 .../lib/preinit/05_init_interfaces_brcm63xx   | 26 +++++++++++
 .../preinit/15_set_preinit_interface_brcm63xx | 44 +++++++++++++++++++
 .../lib/preinit/20_failsafe_net_echo_brcm63xx | 12 +++++
 4 files changed, 97 insertions(+)
 create mode 100644 target/linux/brcm63xx/base-files/lib/preinit/05_failsafe_config_switch_brcm63xx
 create mode 100644 target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx
 create mode 100644 target/linux/brcm63xx/base-files/lib/preinit/15_set_preinit_interface_brcm63xx
 create mode 100644 target/linux/brcm63xx/base-files/lib/preinit/20_failsafe_net_echo_brcm63xx

diff --git a/target/linux/brcm63xx/base-files/lib/preinit/05_failsafe_config_switch_brcm63xx b/target/linux/brcm63xx/base-files/lib/preinit/05_failsafe_config_switch_brcm63xx
new file mode 100644
index 0000000000..b9be96eda6
--- /dev/null
+++ b/target/linux/brcm63xx/base-files/lib/preinit/05_failsafe_config_switch_brcm63xx
@@ -0,0 +1,15 @@
+#!/bin/sh
+
+failsafe_ip() {
+	[ -d /proc/switch/eth1 ] && [ "$ifname" = "eth1" ] && {
+		ifconfig eth1 0.0.0.0 down
+		echo "0 1 2 3 4 ${cpu_port:-5u*}" > /proc/switch/eth1/vlan/0/ports
+	}
+	
+	[ -n "$pi_ifname" ] && grep -q "$pi_ifname" /proc/net/dev && {
+        	ifconfig $pi_ifname $pi_ip netmask $pi_netmask broadcast $pi_broadcast up
+        }
+}
+
+boot_hook_add failsafe failsafe_ip
+
diff --git a/target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx b/target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx
new file mode 100644
index 0000000000..b7cbecd4f4
--- /dev/null
+++ b/target/linux/brcm63xx/base-files/lib/preinit/05_init_interfaces_brcm63xx
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+set_preinit_iface() {
+	ifname=eth1
+
+	. /lib/brcm63xx.sh	
+
+	ifconfig $ifname 0.0.0.0 up
+}
+
+check_module () {
+  module="$1"; shift; params="$*"
+
+  insmod "$module" "$params"
+  sleep 1
+  grep "^$module" /proc/modules
+  return $?
+}
+
+init_iface() {
+	insmod switch-core
+	check_module switch-robo || check_module switch-adm || rmmod switch-core
+}
+
+boot_hook_add preinit_main set_preinit_iface
+boot_hook_add preinit_main init_iface
diff --git a/target/linux/brcm63xx/base-files/lib/preinit/15_set_preinit_interface_brcm63xx b/target/linux/brcm63xx/base-files/lib/preinit/15_set_preinit_interface_brcm63xx
new file mode 100644
index 0000000000..6c7a8a8581
--- /dev/null
+++ b/target/linux/brcm63xx/base-files/lib/preinit/15_set_preinit_interface_brcm63xx
@@ -0,0 +1,44 @@
+#!/bin/sh
+
+port_net_echo() {
+	[ -n "$pi_ifname" ] && grep -q "$pi_ifname" /proc/net/dev && {
+		if [ "$pi_preinit_net_messages" = "y" ] || [ "$pi_failsafe_net_message" = "true" ] && [ "$pi_preinit_no_failsafe_netmsg" != "y" ]; then 
+			netmsg $pi_broadcast "$1"
+		fi
+	}
+}
+
+preinit_ip_deconfig() {
+	if [ -z "$pi_ifname" ]; then
+		ifconfig $ifname 0.0.0.0 down
+	else
+		grep -q "$pi_ifname" /proc/net/dev && {
+			ifconfig $pi_ifname 0.0.0.0 down
+		}
+	fi
+	[ -d /proc/switch/eth1 ] && [ "$ifname" = "eth1" ] && {
+		echo 1 >/proc/switch/eth1/reset
+		echo "0 1 2 3 4 ${cpu_port:-5u*}" > /proc/switch/eth1/vlan/0/ports
+	}
+
+}
+
+preinit_net_echo() {
+	preinit_ip
+	
+	[ -d /proc/switch/eth1 ] && [ "$ifname" = "eth1" ] && {
+		echo 1 >/proc/switch/eth1/reset
+
+		# this would be easier if we blasted the message across all ports
+		# but we don't want packets leaking across interfaces
+		for port in $(seq 0 4); do {
+			echo "$port ${cpu_port:-5u*}" > /proc/switch/eth1/vlan/0/ports
+			port_net_echo $1
+		}; done
+		
+		echo "0 ${cpu_port:-5u*}" > /proc/switch/eth1/vlan/0/ports
+		
+	} || port_net_echo $1
+}
+
+
diff --git a/target/linux/brcm63xx/base-files/lib/preinit/20_failsafe_net_echo_brcm63xx b/target/linux/brcm63xx/base-files/lib/preinit/20_failsafe_net_echo_brcm63xx
new file mode 100644
index 0000000000..f030cb2837
--- /dev/null
+++ b/target/linux/brcm63xx/base-files/lib/preinit/20_failsafe_net_echo_brcm63xx
@@ -0,0 +1,12 @@
+#!/bin/sh
+
+indicate_failsafe() {
+	preinit_net_echo() {
+		port_net_echo $1
+	}
+	echo "- failsafe -"
+	preinit_net_echo "Entering Failsafe!\n"
+	indicate_failsafe_led
+}
+
+
-- 
2.25.1