From 52a8b79f987164167bb459576c19560bee54eb54 Mon Sep 17 00:00:00 2001
From: Eric <kg6wxc@gmail.com>
Date: Thu, 2 Aug 2018 13:53:20 -0700
Subject: [PATCH] Trim Packages (#96)

Closes #81

* Trim Packages

Kernel support for USB has been moved to modules
libpcap and tcpdump have been moved to modules
libnetsnmp and snmpd have been moved to modules
IPv6 has been removed from the kernel
IPv6 support has been removed from busybox network utils as well.
(no more funny DNS responses in nslookup!)

* Remove ping6 and traceroute6

They are no longer needed

* Changed patch name and number and updated series file
---
 configs/common.config                  | 25 ++++++++++++++++++-------
 patches/710-no-ping6-traceroute6.patch | 22 ++++++++++++++++++++++
 patches/series                         |  1 +
 3 files changed, 41 insertions(+), 7 deletions(-)
 create mode 100644 patches/710-no-ping6-traceroute6.patch

diff --git a/configs/common.config b/configs/common.config
index 005fdee8..7a833751 100644
--- a/configs/common.config
+++ b/configs/common.config
@@ -1,21 +1,32 @@
+CONFIG_KERNEL_IPV6=n
+CONFIG_KERNEL_IPV6_MULTIPLE_TABLES=n
+CONFIG_KERNEL_IPV6_SUBTREES=n
+CONFIG_KERNEL_IPV6_MROUTE=n
+CONFIG_IPV6=n
 CONFIG_ATH_USER_REGD=y
 CONFIG_PACKAGE_bridge=y
 CONFIG_PACKAGE_busybox=y
+CONFIG_BUSYBOX_CUSTOM=y
+CONFIG_BUSYBOX_DEFAULT_FEATURE_IPV6=n
+CONFIG_BUSYBOX_CONFIG_FEATURE_IPV6=n
 CONFIG_BUSYBOX_CONFIG_TELNETD=y
 CONFIG_PACKAGE_dnsmasq=y
 CONFIG_PACKAGE_dropbear=y
 CONFIG_PACKAGE_iperf=m
 CONFIG_PACKAGE_iptables=y
 CONFIG_PACKAGE_kmod-ipt-nathelper=y
-CONFIG_PACKAGE_kmod-usb-core=y
-CONFIG_PACKAGE_kmod-usb-uhci=y
-CONFIG_PACKAGE_kmod-usb2=y
+CONFIG_PACKAGE_kmod-usb-core=m
+CONFIG_PACKAGE_kmod-usb-ehci=m
+CONFIG_PACKAGE_kmod-usb-ohci=m
+CONFIG_PACKAGE_kmod-usb-uhci=m
+CONFIG_PACKAGE_kmod-usb2=m
 CONFIG_PACKAGE_libgcc=y
 CONFIG_PACKAGE_mtd=y
 CONFIG_PACKAGE_ppp=n
 CONFIG_PACKAGE_ppp-mod-pppoe=n
 CONFIG_PACKAGE_odhcp6c=n
 CONFIG_PACKAGE_odhcpd=n
+CONFIG_PACKAGE_odhcpd-ipv6only=n
 CONFIG_PACKAGE_kmod-ppp=n
 CONFIG_PACKAGE_kmod-pppoe=n
 CONFIG_PACKAGE_kmod-pppox=n
@@ -33,8 +44,8 @@ CONFIG_PACKAGE_perlbase-essential=y
 CONFIG_PACKAGE_perlbase-xsloader=y
 CONFIG_PACKAGE_perlbase-file=y
 CONFIG_PACKAGE_perlbase-perlio=y
-CONFIG_PACKAGE_libpcap=y
-CONFIG_PACKAGE_tcpdump-mini=y
+CONFIG_PACKAGE_libpcap=m
+CONFIG_PACKAGE_tcpdump-mini=m
 CONFIG_PACKAGE_ntpclient=y
 CONFIG_PACKAGE_xinetd=y
 CONFIG_PACKAGE_kmod-ipv6=n
@@ -48,8 +59,8 @@ CONFIG_PACKAGE_libiwinfo=y
 CONFIG_PACKAGE_socat=y
 CONFIG_PACKAGE_ntpclient=y
 CONFIG_PACKAGE_curl=y
-CONFIG_PACKAGE_libnetsnmp=y
-CONFIG_PACKAGE_snmpd=y
+CONFIG_PACKAGE_libnetsnmp=m
+CONFIG_PACKAGE_snmpd=m
 CONFIG_PACKAGE_lua=y
 CONFIG_PACKAGE_liblua=y
 CONFIG_PACKAGE_libuci-lua=y
diff --git a/patches/710-no-ping6-traceroute6.patch b/patches/710-no-ping6-traceroute6.patch
new file mode 100644
index 00000000..c6776948
--- /dev/null
+++ b/patches/710-no-ping6-traceroute6.patch
@@ -0,0 +1,22 @@
+Index: openwrt/package/utils/busybox/Config-defaults.in
+===================================================================
+--- openwrt.orig/package/utils/busybox/Config-defaults.in
++++ openwrt/package/utils/busybox/Config-defaults.in
+@@ -2376,7 +2376,7 @@ config BUSYBOX_DEFAULT_PING
+ 	default y
+ config BUSYBOX_DEFAULT_PING6
+ 	bool
+-	default y
++	default n
+ config BUSYBOX_DEFAULT_FEATURE_FANCY_PING
+ 	bool
+ 	default y
+@@ -2448,7 +2448,7 @@ config BUSYBOX_DEFAULT_TRACEROUTE
+ 	default y
+ config BUSYBOX_DEFAULT_TRACEROUTE6
+ 	bool
+-	default y
++	default n
+ config BUSYBOX_DEFAULT_FEATURE_TRACEROUTE_VERBOSE
+ 	bool
+ 	default y
diff --git a/patches/series b/patches/series
index a9500cea..8dfecd7f 100644
--- a/patches/series
+++ b/patches/series
@@ -11,3 +11,4 @@
 707-enable-board-name.patch
 708-define-aredn-vlans.patch
 709-iperf-fw-restart.patch
+710-no-ping6-traceroute6.patch