Clarify options, and make backups when installing create_ap.conf file

Makefile

@@ -5,15 +5,26 @@ BINDIR=$(PREFIX)/bin
 all:
 	@echo "Run 'make install' for installation."
 	@echo "Run 'make uninstall' for uninstallation."
+	@echo "Run 'make reinstall' for installation without clobbering existing config file."
 
-install:
+install-noconf:
 	install -Dm755 create_ap $(DESTDIR)$(BINDIR)/create_ap
-	install -Dm644 create_ap.conf $(DESTDIR)/etc/create_ap.conf
 	[ ! -d /lib/systemd/system ] || install -Dm644 create_ap.service $(DESTDIR)$(PREFIX)/lib/systemd/system/create_ap.service
 	[ ! -e /sbin/openrc-run ] || install -Dm755 create_ap.openrc $(DESTDIR)/etc/init.d/create_ap
 	install -Dm644 bash_completion $(DESTDIR)$(PREFIX)/share/bash-completion/completions/create_ap
 	install -Dm644 README.md $(DESTDIR)$(PREFIX)/share/doc/create_ap/README.md
 
+install: install-noconf
+	[ -e $(DESTDIR)/etc/create_ap.conf ] && echo "Existing $(DESTDIR)/etc/create_ap.conf will be renamed with .orig suffix" >&2
+	install -Dm644 --backup=existing --suffix=.orig create_ap.conf $(DESTDIR)/etc/create_ap.conf
+
+reinstall: install-noconf
+	if [ -e $(DESTDIR)/etc/create_ap.conf ]; then \
+	    echo "Leaving existing $(DESTDIR)/etc/create_ap.conf unchanged" >&2; \
+	else \
+	    install -Dm644 --backup=existing --suffix=.orig create_ap.conf $(DESTDIR)/etc/create_ap.conf; \
+	fi
+
 uninstall:
 	rm -f $(DESTDIR)$(BINDIR)/create_ap
 	rm -f $(DESTDIR)/etc/create_ap.conf

README.md

@@ -1,15 +1,11 @@
-## NOT MAINTAINED
-
-This project is no longer maintained.
-
-If you are still interested in this project, checkout the following fork that
-also provides GUI: [lakinduakash/linux-wifi-hotspot]
+This project is a fork of the no-longer-maintained [oblique/create_ap](//github.com/oblique/create_ap).
 
 
 ## Features
 * Create an AP (Access Point) at any channel.
-* Choose one of the following encryptions: WPA, WPA2, WPA/WPA2, Open (no encryption).
+* Choose one of the following encryptions: WPA, WPA2, WPA3, WPA/WPA2, WPA2/WPA3, Open (no encryption).
 * Hide your SSID.
+* Enable [Wi-Fi Protected Setup](https://en.wikipedia.org/wiki/Wi-Fi_Protected_Setup) (WPS) with push-button or PIN methods.
 * Disable communication between clients (client isolation).
 * IEEE 802.11n & 802.11ac support
 * Internet sharing methods: NATed or Bridged or None (no Internet sharing).
@@ -23,11 +19,9 @@ also provides GUI: [lakinduakash/linux-wifi-hotspot]
 * bash (to run this script)
 * util-linux (for getopt)
 * procps or procps-ng
-* hostapd
+* hostapd (v2.6 or newer)
 * iproute2
-* iw
-* iwconfig (you only need this if 'iw' can not recognize your adapter)
-* haveged (optional)
+* iw (non-`nl80211` wifi drivers are no longer supported)
 
 ### For 'NATed' or 'None' Internet sharing method
 * dnsmasq
@@ -52,8 +46,13 @@ also provides GUI: [lakinduakash/linux-wifi-hotspot]
 ### No passphrase (open network):
     create_ap wlan0 eth0 MyAccessPoint
 
-### WPA + WPA2 passphrase:
+### WPA2 + WPA3 passphrase:
+    create_ap wlan0 eth0 MyAccessPoint MyPassPhrase
+
+### WPS Push Button or PIN entry:
     create_ap wlan0 eth0 MyAccessPoint MyPassPhrase
+    create_ap --wps-pbc wlan0            # Device will have 2 minutes to connect
+    create_ap --wps-pin wlan0,12345678   # Enroll PIN 12345678 for device requesting it
 
 ### AP without Internet sharing:
     create_ap -n wlan0 MyAccessPoint MyPassPhrase
@@ -67,13 +66,10 @@ also provides GUI: [lakinduakash/linux-wifi-hotspot]
 ### Internet sharing from the same WiFi interface:
     create_ap wlan0 wlan0 MyAccessPoint MyPassPhrase
 
-### Choose a different WiFi adapter driver
-    create_ap --driver rtl871xdrv wlan0 eth0 MyAccessPoint MyPassPhrase
-
 ### No passphrase (open network) using pipe:
     echo -e "MyAccessPoint" | create_ap wlan0 eth0
 
-### WPA + WPA2 passphrase using pipe:
+### WPA2 + WPA3 passphrase using pipe:
     echo -e "MyAccessPoint\nMyPassPhrase" | create_ap wlan0 eth0
 
 ### Enable IEEE 802.11n
@@ -94,5 +90,3 @@ Using the persistent [systemd](https://wiki.archlinux.org/index.php/systemd#Basi
 ## License
 FreeBSD
 
-
-[lakinduakash/linux-wifi-hotspot]: https://github.com/lakinduakash/linux-wifi-hotspot

bash_completion

@@ -115,9 +115,6 @@ _create_ap() {
         --no-virt)
             # No Options
             ;;
-        --no-haveged)
-            # No Options
-            ;;
         --fix-unmanaged)
             # No Options
             ;;