From f4858e1d15b46bd4f70093e283ed66b49689b62d Mon Sep 17 00:00:00 2001
From: zeus <rootapostolos@swarmlab.io>
Date: Wed, 1 Dec 2021 12:34:52 +0200
Subject: [PATCH] adhoc

---
 .../modules/ROOT/pages/index-setup.adoc       | 171 ++++++++++++++++++
 1 file changed, 171 insertions(+)

diff --git a/network-adhoc/modules/ROOT/pages/index-setup.adoc b/network-adhoc/modules/ROOT/pages/index-setup.adoc
index 3433fa3..46bd86c 100644
--- a/network-adhoc/modules/ROOT/pages/index-setup.adoc
+++ b/network-adhoc/modules/ROOT/pages/index-setup.adoc
@@ -114,5 +114,176 @@ echo "Check name resolution"
 resolvectl status
 ----
 
+== unprotected ad-hoc interface using wpa_supplicant 
 
 
+TIP: unprotected
+
+* *sudo su*   # if not already done
+
+[source,sh]
+----
+
+cat > /etc/wpa_supplicant/wpa_supplicant-wlan0.conf <<EOF
+ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
+update_config=1
+p2p_disabled=1
+country=GR
+
+network={
+    ssid="IBSS-RPiNet"
+    frequency=2412   # channel 1
+    mode=1           # IBSS (ad-hoc, peer-to-peer)
+    key_mgmt=NONE
+}
+EOF
+
+chmod 600 /etc/wpa_supplicant/wpa_supplicant-wlan0.conf
+systemctl enable wpa_supplicant@wlan0.service
+
+echo ""
+echo "enabled4you"
+echo "systemctl enable wpa_supplicant@wlan0.service"
+echo ""
+
+----
+
+
+=== Reboot
+
+NOTE: Reboot
+
+=== Check
+
+[source,sh]
+----
+
+echo ""
+echo "Check with:"
+echo ""
+
+echo "iw dev"
+echo ""
+echo "iw dev wlan0 link"
+echo ""
+echo "ip addr"
+echo ""
+echo "sudo iw dev wlan0 scan | grep -B8 -A3 "IBSS-RPiNet""
+echo ""
+
+# From another ad hoc connected device you should be able to
+echo "From another ad hoc connected device you should be able to"
+echo ""
+echo "ping -c3 raspberrypi.local"
+echo ""
+----
+
+== protected ad-hoc interface using wpa_supplicant 
+
+CAUTION: Raspberry Pi does not support encrypted IBSS connections!. You have to use an additional USB WiFi dongle that usually registers an interface wlan1. My setup shows:
+
+*check*
+[source,sh]
+----
+iw list | grep -P "Wiphy|RSN-IBSS"
+----
+
+*output*
+[source,sh]
+----
+Wiphy phy1
+        Device supports RSN-IBSS.
+Wiphy phy0
+----
+
+ You cannot find this support entry for Wiphy pyh0 that is the on-board WiFi device.
+
+=== Install driver
+
+TIP: Example TP-Link
+
+[source,sh]
+----
+echo "lsusb"
+
+echo ""
+echo "Example for TP-Link"
+echo ""
+echo "Bus 001 Device 005: ID 2357:0109 TP-Link TL WN823N RTL8192EU"
+echo ""
+sudo wget http://downloads.fars-robotics.net/wifi-drivers/install-wifi -O /usr/bin/install-wifi
+sudo chmod +x /usr/bin/install-wifi
+
+echo ""
+echo "sudo install-wifi -h"
+echo ""
+echo "will give details on how to use the script."
+echo ""
+echo "To download the driver for your current kernel use command"
+
+
+sudo install-wifi
+
+echo "sudo install-wifi 8192eu"
+echo ""
+sudo install-wifi 8192eu
+echo ""
+echo "If you update your kernel version you will need to re-run the script to update the driver version."
+----
+
+=== setup 
+
+[source,sh]
+----
+sudo systemctl disable --now wpa_supplicant@wlan0.service
+
+echo "sudo -Es   # if not already done"
+echo ""
+cat > /etc/wpa_supplicant/wpa_supplicant-wlan1.conf <<EOF
+ctrl_interface=DIR=/run/wpa_supplicant GROUP=netdev
+update_config=1
+p2p_disabled=1
+country=GR
+
+network={
+    ssid="IBSS-RPiNet"
+    key_mgmt=WPA-PSK
+    proto=RSN
+    psk="verySecretPasswordi123"
+    mode=1
+    frequency=2412
+}
+EOF
+
+chmod 600 /etc/wpa_supplicant/wpa_supplicant-wlan1.conf
+systemctl enable wpa_supplicant@wlan1.service
+----
+
+=== Reboot
+
+NOTE: reboot
+
+[source,sh]
+----
+echo ""
+echo "reboot."
+echo ""
+----
+
+=== Check
+
+[source,sh]
+----
+echo "iw dev"
+echo ""
+echo "iw dev wlan1 link"
+echo ""
+echo "ip addr"
+echo ""
+echo "sudo iw dev wlan1 scan | grep -B8 -A3 "IBSS-RPiNet""
+echo ""
+echo "From another ad hoc connected device you should be able to"
+echo ""
+echo "ping -c3 raspberrypi.local"
+echo ""
+----