From b153d1dab55af5eddc83f41b16126386f3603a20 Mon Sep 17 00:00:00 2001
From: FFS-Roland <roland.volkmann@t-online.de>
Date: Wed, 14 Dec 2016 17:20:40 +0100
Subject: [PATCH] Initial code for segment assignment by DNS
---
ffs-set-segment/Makefile | 38 +++++++++++++++
.../files/etc/init.d/ffs-set-segment | 15 ++++++
.../files/usr/lib/micron.d/ffs-set-segment | 1 +
.../files/usr/sbin/ffs-set-segment | 48 +++++++++++++++++++
ffs-set-segment/ipkg/postinst | 3 ++
5 files changed, 105 insertions(+)
create mode 100644 ffs-set-segment/Makefile
create mode 100644 ffs-set-segment/files/etc/init.d/ffs-set-segment
create mode 100644 ffs-set-segment/files/usr/lib/micron.d/ffs-set-segment
create mode 100644 ffs-set-segment/files/usr/sbin/ffs-set-segment
create mode 100644 ffs-set-segment/ipkg/postinst
diff --git a/ffs-set-segment/Makefile b/ffs-set-segment/Makefile
new file mode 100644
index 0000000..5a916bf
--- /dev/null
+++ b/ffs-set-segment/Makefile
@@ -0,0 +1,38 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=ffs-set-segment-patches
+PKG_VERSION:=1
+
+PKG_BUILD_DIR := $(BUILD_DIR)/$(PKG_NAME)
+
+include $(GLUONDIR)/include/package.mk
+
+PKG_CONFIG_DEPENDS += $(GLUON_I18N_CONFIG)
+
+
+define Package/ffs-set-segment-patches
+ SECTION:=gluon
+ CATEGORY:=Gluon
+ TITLE:=Patch files for setting correct segment
+endef
+
+define Build/Prepare
+ mkdir -p $(PKG_BUILD_DIR)
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+endef
+
+define Package/ffs-set-segment-patches/install
+ $(INSTALL_DIR) $(1)/etc/init.d
+ $(INSTALL_BIN) ./files/etc/init.d/ffs-set-segment $(1)/etc/init.d/ffs-set-segment
+ $(INSTALL_DIR) $(1)/usr/sbin
+ $(INSTALL_BIN) ./files/usr/sbin/ffs-set-segment $(1)/usr/sbin/ffs-set-segment
+ $(INSTALL_DIR) $(1)/usr/lib/micron.d
+ $(INSTALL_BIN) ./files/usr/lib/micron.d/ffs-set-segment $(1)/usr/lib/micron.d/ffs-set-segment
+endef
+
+$(eval $(call BuildPackage,ffs-set-segment-patches))
diff --git a/ffs-set-segment/files/etc/init.d/ffs-set-segment b/ffs-set-segment/files/etc/init.d/ffs-set-segment
new file mode 100644
index 0000000..d49e3b6
--- /dev/null
+++ b/ffs-set-segment/files/etc/init.d/ffs-set-segment
@@ -0,0 +1,15 @@
+#!/bin/sh /etc/rc.common
+
+START=97
+
+start () {
+ uci set fastd.mesh_vpn.on_connect='/usr/sbin/ffs-set-segment'
+ uci set fastd.mesh_vpn_backbone.auto_segment='1'
+ /usr/sbin/ffs-set-segment
+ /etc/init.d/micrond enable
+ /etc/init.d/micrond restart
+}
+
+stop() {
+ true
+}
diff --git a/ffs-set-segment/files/usr/lib/micron.d/ffs-set-segment b/ffs-set-segment/files/usr/lib/micron.d/ffs-set-segment
new file mode 100644
index 0000000..b18ef12
--- /dev/null
+++ b/ffs-set-segment/files/usr/lib/micron.d/ffs-set-segment
@@ -0,0 +1 @@
+* * * * * /usr/sbin/ffs-set-segment
diff --git a/ffs-set-segment/files/usr/sbin/ffs-set-segment b/ffs-set-segment/files/usr/sbin/ffs-set-segment
new file mode 100644
index 0000000..17b69ac
--- /dev/null
+++ b/ffs-set-segment/files/usr/sbin/ffs-set-segment
@@ -0,0 +1,48 @@
+#!/bin/sh
+if [ $(ps | grep -c "{$(basename $0)}") -gt 4 ]; then
+ echo started twice
+ exit 1
+fi
+
+if [ $(ps | grep -c "fastd") -lt 2 ]; then
+ echo fastd not running
+ exit 1
+fi
+
+if [ "$(uci get fastd.mesh_vpn_backbone.auto_segment)" = "0" ]; then
+ echo auto_segment disabled
+ exit 1
+fi
+
+NODEID=`uci get network.bat0.macaddr`
+for i in `seq 1 5`;
+do
+ NODEID=${NODEID/\:/}
+done
+NODEID=ffs-$NODEID
+SEGMENT=`nslookup $NODEID.configserver.selfhosted.de [::1]:54 |tail -n1 `
+if [[ -z "${SEGMENT// }" ]]; then
+ echo Node not known
+ exit 1
+fi
+SEGMENT=${SEGMENT/Address 1: 2001:2::/}
+let PORT=SEGMENT+10040
+SEGNUM=$(printf "%02d" $SEGMENT)
+
+CHANGED=0
+for i in `seq 1 10`;
+do
+ GW=$(printf "gw%02d" $i)
+ OLDPEER=`uci get fastd.mesh_vpn_backbone_peer_$GW.remote`
+ NEWPEER="\"${GW}s$SEGNUM.freifunk-stuttgart.de\" port $PORT"
+
+ if [ "$NEWPEER" != "$OLDPEER" ]; then
+ uci set fastd.mesh_vpn_backbone_peer_$GW.remote="$NEWPEER"
+ CHANGED=1
+ fi
+done
+
+if [ "$CHANGED" = "1" ]; then
+ /etc/init.d/fastd restart
+ echo Segment set to $SEGNUM
+fi
diff --git a/ffs-set-segment/ipkg/postinst b/ffs-set-segment/ipkg/postinst
new file mode 100644
index 0000000..e1b99de
--- /dev/null
+++ b/ffs-set-segment/ipkg/postinst
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+/etc/init.d/ffs-set-segment enable
--
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