From patchwork Sun Jan 21 14:47:48 2018
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v3,
 1/2] fff-config: Provide options to permanently disable WiFi devices
From: Adrian Schmutzler <freifunk@adrianschmutzler.de>
X-Patchwork-Id: 756
Message-Id: <1516546069-2586-1-git-send-email-freifunk@adrianschmutzler.de>
To: franken-dev@freifunk.net
Date: Sun, 21 Jan 2018 15:47:48 +0100

Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

Tested-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
---

Changes in v2:
none

Changes in v3:
- Added functions to set state

Comments:
- Since I set the fffconfig values in the function, I do NOT call
  them in the uci-default script.
- I will not include the wifi command in the functions, so one can
  decide whether he wants to apply the settings at ones or adds
  something before calling WiFi
---
 src/packages/fff/fff-config/Makefile               |  2 +-
 .../files/etc/uci-defaults/98-configure-fff        | 21 ++++++
 .../fff-wireless/files/lib/functions/fff/wireless  | 86 ++++++++++++++++++++++
 3 files changed, 108 insertions(+), 1 deletion(-)

diff --git a/src/packages/fff/fff-config/Makefile b/src/packages/fff/fff-config/Makefile
index fe4f5df..690719a 100644
--- a/src/packages/fff/fff-config/Makefile
+++ b/src/packages/fff/fff-config/Makefile
@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=fff-config
-PKG_VERSION:=1
+PKG_VERSION:=2
 PKG_RELEASE:=1
 
 PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)
diff --git a/src/packages/fff/fff-config/files/etc/uci-defaults/98-configure-fff b/src/packages/fff/fff-config/files/etc/uci-defaults/98-configure-fff
index aa6ac42..02d716c 100644
--- a/src/packages/fff/fff-config/files/etc/uci-defaults/98-configure-fff
+++ b/src/packages/fff/fff-config/files/etc/uci-defaults/98-configure-fff
@@ -28,3 +28,24 @@ poe_passthrough=$(uci -q get "fff.poe_passthrough.active")
 if [ "$poe_passthrough" = "1" ] && [ -s /usr/lib/fff-support/activate_poe_passthrough.sh ] ; then
 	/usr/lib/fff-support/activate_poe_passthrough.sh
 fi
+
+. /lib/functions/fff/wireless
+
+if [ "$(uci -q get 'fff.wifi.disable24ghz')" = "1" ] ; then
+	radio="$(wifiGetPhy "2")"
+	[ -n "$radio" ] && uci -q set "wireless.${radio}.disabled=1"
+fi
+
+if [ "$(uci -q get 'fff.wifi.disable5ghz')" = "1" ] ; then
+	radio="$(wifiGetPhy "5")"
+	[ -n "$radio" ] && uci -q set "wireless.${radio}.disabled=1"
+fi
+
+if [ "$(uci -q get 'fff.wifi.disablewifi')" = "1" ] ; then
+	for phy in $(iw phy | awk '/^Wiphy/{ print $2 }'); do
+		radio="radio$(echo "$phy" | tr -d -C "0-9")"
+		uci -q set "wireless.${radio}.disabled=1"
+	done
+fi
+
+uci -q commit wireless
diff --git a/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless b/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless
index 5b63397..ae70791 100644
--- a/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless
+++ b/src/packages/fff/fff-wireless/files/lib/functions/fff/wireless
@@ -228,4 +228,90 @@ wifiAddMesh() {
 	echo "${iface}"
 	return 0
 }
+
+wifiGetPhy() {
+	# Returns the wifi-device (radioX) for a given frequency (2 or 5)
+
+	if [ $# -ne "1" ]
+	then
+		return 1
+	fi
+
+	local freq=$1
+	local radio=""
+
+	for phy in $(iw phy | awk '/^Wiphy/{ print $2 }'); do
+		if iw phy "$phy" info | grep -q -m1 "${freq}... MHz"; then
+			radio="radio$(echo "$phy" | tr -d -C "0-9")"
+		fi
+	done
+	
+	echo "$radio"
+	return 0 # also returns success if outermost if is false
+}
+
+wifiSetActive() {
+	# En- or disables WiFi permanently (upgrade-safe)
+	#
+	# wifiSetActive <freq> <setto>
+	#
+	# freq: 2 or 5
+	# setto: 0 (disabled) or 1 (enabled)
+
+	if [ $# -ne "2" ]
+	then
+		return 1
+	fi
+
+	local freq=$1
+	local setto=$2
+	
+	[ "$setto" = "1" ] && disabled="0" || disabled="1"
+	
+	radio="$(wifiGetPhy "$freq")"
+	if [ -n "$radio" ] ; then
+		uci -q set fff.wifi=fff
+		if [ "$freq" = "2" ] ; then
+			uci -q set "fff.wifi.disable24ghz=$disabled"
+		else
+			uci -q set "fff.wifi.disable5ghz=$disabled"
+		fi
+		uci -q set "wireless.${radio}.disabled=$disabled"
+	else
+		return 1
+	fi
+	uci -q commit fff
+	uci -q commit wireless
+
+	return 0
+}
+
+wifiSetAllActive() {
+	# En- or disables all WiFi interfaces permanently (upgrade-safe)
+	#
+	# wifiSetActive <setto>
+	#
+	# setto: 0 (disabled) or 1 (enabled)
+
+	if [ $# -ne "1" ]
+	then
+		return 1
+	fi
+
+	local setto=$1
+	
+	[ "$setto" = "1" ] && disabled="0" || disabled="1"
+	
+	uci -q set fff.wifi=fff
+	uci -q set "fff.wifi.disablewifi=$disabled"
+	for phy in $(iw phy | awk '/^Wiphy/{ print $2 }'); do
+		radio="radio$(echo "$phy" | tr -d -C "0-9")"
+		uci -q set "wireless.${radio}.disabled=$disabled"
+	done
+	uci -q commit fff
+	uci -q commit wireless
+	
+	return 0
+}
+
 # vim: set noexpandtab:tabstop=4