From patchwork Mon Jun 11 17:27:48 2018
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Subject: [v2,2/2] Allow initial configuration from Ethernet
From: Fabian Blaese <fabian@blaese.de>
X-Patchwork-Id: 852
Message-Id: <20180611172748.6267-2-fabian@blaese.de>
To: franken-dev@freifunk.net
Cc: Adrian Schmutzler <freifunk@adrianschmutzler.de>
Date: Mon, 11 Jun 2018 19:27:48 +0200

Signed-off-by: Fabian Bläse <fabian@blaese.de>
---
Apply after MacKnocker patchset!

Changes in v2:
- Fix indentation
- Improve usage message
- Return if no ethmesh_dev exists
- Replace . with : in ping6 sed
---
 .../fff-hoods/files/usr/lib/functions/fff/hoodfile | 39 ++++++++++++++++++----
 .../fff/fff-hoods/files/usr/sbin/configurehood     |  2 +-
 2 files changed, 33 insertions(+), 8 deletions(-)

diff --git a/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile b/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile
index b88a3d4..bc52883 100644
--- a/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile
+++ b/src/packages/fff/fff-hoods/files/usr/lib/functions/fff/hoodfile
@@ -2,8 +2,7 @@
 . /lib/functions/fff/wireless
 
 getWirelessHoodfile() {
-	if [ $# != 1 ]
-	then
+	if [ $# != 1 ]; then
 		echo "Usage: getWirelessHoodfile <target-file>"
 		return 1
 	fi
@@ -54,9 +53,32 @@ getWirelessHoodfile() {
 	fi
 }
 
+getEthernetHoodfile() {
+	if [ $# != 1 ]; then
+			echo "Usage: getEthernetHoodfile <target-file>"
+			return 1
+	fi
+	file=$1
+
+	echo "Trying to get hoodfile from ethernet neighbor..."
+
+	if ! ethmesh_dev=$(uci -q get network.ethmesh.ifname); then
+		# no ethmesh interface
+		return 1
+	fi
+
+	neighbor_addrs=$(ping6 -c2 ff02::1%${ethmesh_dev} | grep seq | cut -d " " -f4 | sed s/:$//g | sort | uniq)
+
+	for addr in $neighbor_addrs; do
+		wget -T2 -t1 -qO "$file" "http://[${addr}%${ethmesh_dev}]:2342/keyxchangev2data" && return 0
+	done
+
+	# got no hoodfile
+	return 1
+}
+
 getGatewayHoodfile() {
-	if [ $# != 1 ]
-	then
+	if [ $# != 1 ]; then
 		echo "Usage: getGatewayHoodfile <target-file>"
 		return 1
 	fi
@@ -72,8 +94,7 @@ getGatewayHoodfile() {
 }
 
 getKeyserverHoodfile() {
-	if [ $# != 1 ]
-	then
+	if [ $# != 1 ]; then
 		echo "Usage: getKeyserverHoodfile <target-file>"
 		return 1
 	fi
@@ -81,5 +102,9 @@ getKeyserverHoodfile() {
 
 	echo "Getting hoodfile from Keyserver"
 
-	wget -T15 -t5 -O "$file" "http://keyserver.freifunk-franken.de/v2/?lat=$lat&long=$long"
+	if wget -T15 -t5 -O "$file" "http://keyserver.freifunk-franken.de/v2/?lat=$lat&long=$long"; then
+		return 0
+	else
+		return 1
+	fi
 }
diff --git a/src/packages/fff/fff-hoods/files/usr/sbin/configurehood b/src/packages/fff/fff-hoods/files/usr/sbin/configurehood
index aee20e5..282e21b 100755
--- a/src/packages/fff/fff-hoods/files/usr/sbin/configurehood
+++ b/src/packages/fff/fff-hoods/files/usr/sbin/configurehood
@@ -101,7 +101,7 @@ else
 		
 			sleep 30 # Wait for the config AP, which may be created at the same time as this script has started
 
-			getWirelessHoodfile "$hoodfile"
+			getEthernetHoodfile "$hoodfile" || getWirelessHoodfile "$hoodfile"
 
 			#UPLINK: Set up uplink data on first contact:
 			if [ -s /tmp/keyxchangev2data ]; then