Merge pull request #407 from dopplerreflect/master

Add option to create dhcp-host values into dnsmasq.conf

src/scripts/README.md

@@ -1,90 +1,123 @@
 ## Features
-* Create an AP (Access Point) at any channel.
-* Choose one of the following encryptions: WPA, WPA2, WPA/WPA2, Open (no encryption).
-* Hide your SSID.
-* Disable communication between clients (client isolation).
-* IEEE 802.11n & 802.11ac support
-* Internet sharing methods: NATed or Bridged or None (no Internet sharing).
-* Choose the AP Gateway IP (only for 'NATed' and 'None' Internet sharing methods).
-* You can create an AP with the same interface you are getting your Internet connection.
-* You can pass your SSID and password through pipe or through arguments (see examples).
 
+- Create an AP (Access Point) at any channel.
+- Choose one of the following encryptions: WPA, WPA2, WPA/WPA2, Open (no encryption).
+- Hide your SSID.
+- Disable communication between clients (client isolation).
+- IEEE 802.11n & 802.11ac support
+- Internet sharing methods: NATed or Bridged or None (no Internet sharing).
+- Choose the AP Gateway IP (only for 'NATed' and 'None' Internet sharing methods).
+- You can create an AP with the same interface you are getting your Internet connection.
+- You can pass your SSID and password through pipe or through arguments (see examples).
+- Optionally assign IP addresses to specified hosts via dnsmasq's `dhcp-host` configuration option.
 
 ## Dependencies
+
 ### General
-* bash (to run this script)
-* util-linux (for getopt)
-* procps or procps-ng
-* hostapd
-* iproute2
-* iw
-* iwconfig (you only need this if 'iw' can not recognize your adapter)
-* haveged (optional)
+
+- bash (to run this script)
+- util-linux (for getopt)
+- procps or procps-ng
+- hostapd
+- iproute2
+- iw
+- iwconfig (you only need this if 'iw' can not recognize your adapter)
+- haveged (optional)
 
 ### For 'NATed' or 'None' Internet sharing method
-* dnsmasq
-* iptables
 
+- dnsmasq
+- iptables
 
 ## Installation
+
 ### Generic
+
     git clone https://github.com/lakinduakash/linux-wifi-hotspot
     cd linux-wifi-hotspot/src/scripts
     make install
 
 ### ArchLinux
+
     pacman -S create_ap
 
 ### Gentoo
+
     emerge layman
     layman -f -a jorgicio
     emerge net-wireless/create_ap
 
 ## Examples
+
 ### No passphrase (open network):
+
     create_ap wlan0 eth0 MyAccessPoint
 
 ### WPA + WPA2 passphrase:
+
     create_ap wlan0 eth0 MyAccessPoint MyPassPhrase
 
 ### AP without Internet sharing:
+
     create_ap -n wlan0 MyAccessPoint MyPassPhrase
 
 ### Bridged Internet sharing:
+
     create_ap -m bridge wlan0 eth0 MyAccessPoint MyPassPhrase
 
 ### Bridged Internet sharing (pre-configured bridge interface):
+
     create_ap -m bridge wlan0 br0 MyAccessPoint MyPassPhrase
 
 ### 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:
+
     echo -e "MyAccessPoint\nMyPassPhrase" | create_ap wlan0 eth0
 
 ### Enable IEEE 802.11n
+
     create_ap --ieee80211n --ht_capab '[HT40+]' wlan0 eth0 MyAccessPoint MyPassPhrase
 
 ### Client Isolation:
+
     create_ap --isolate-clients wlan0 eth0 MyAccessPoint MyPassPhrase
 
+### Assign IP address to a hosts listed in /etc/hosts:
+
+    create_ap --dhcp-hosts "host1 host2" wlan0 eth0 MyAccessPoint MyPassPhrase
+
+### Assign IP address to two hosts not listed in /etc/hosts:
+
+    create_ap --dhcp-hosts "host1,192.168.12.2 host2,192.168.12.3" wlan0 eth0 MyAccessPoint MyPassPhrase
+
+Use a space to separate multiple `dhcp-host` definitions. Reference [dnsmasq.conf.example](https://github.com/imp/dnsmasq/blob/770bce967cfc9967273d0acfb3ea018fb7b17522/dnsmasq.conf.example#L238) for other valid ways to define hosts, such as by MAC address.
+
 ## Systemd service
+
 Using the persistent [systemd](https://wiki.archlinux.org/index.php/systemd#Basic_systemctl_usage) service
+
 ### Start service immediately:
+
     systemctl start create_ap
 
 ### Start on boot:
+
     systemctl enable create_ap
 
-
 ## License
-FreeBSD 
+
+FreeBSD
+
 - Copyright (c) 2013, oblique
 - Copyright (c) 2019, lakinduakash
-

src/scripts/create_ap

@@ -14,7 +14,7 @@
 #    dnsmasq
 #    iptables
 
-VERSION=0.4.8
+VERSION=0.4.9
 PROGNAME="$(basename $0)"
 
 # make sure that all command outputs are in english
@@ -63,6 +63,11 @@ usage() {
     echo "                          back to managed"
     echo "  --mac <MAC>             Set MAC address"
     echo "  --dhcp-dns <IP1[,IP2]>  Set DNS returned by DHCP"
+    echo "  --dhcp-hosts <H1[,H2]>  Add list of dnsmasq.conf 'dhcp-host=' values"
+    echo "                          If ETC_HOSTS=1, it will use the ip addresses for the named hosts in that /etc/hosts."
+    echo "                          Othwise, the following syntax would work --dhcp-hosts \"host1,192.168.12.2 host2,192.168.12.3\""
+    echo "                          See https://github.com/imp/dnsmasq/blob/770bce967cfc9967273d0acfb3ea018fb7b17522/dnsmasq.conf.example#L238"
+    echo "                          for other valid dnsmasq dhcp-host parameters."
     echo "  --daemon                Run create_ap in the background"
     echo "  --pidfile <pidfile>     Save daemon PID to file"
     echo "  --logfile <logfile>     Save daemon messages to file"
@@ -640,6 +645,7 @@ GATEWAY=192.168.12.1
 WPA_VERSION=2
 ETC_HOSTS=0
 ADDN_HOSTS=
+DHCP_HOSTS=
 DHCP_DNS=gateway
 NO_DNS=0
 NO_DNSMASQ=0
@@ -672,7 +678,7 @@ REDIRECT_TO_LOCALHOST=0
 CONFIG_OPTS=(CHANNEL GATEWAY WPA_VERSION ETC_HOSTS DHCP_DNS NO_DNS NO_DNSMASQ HIDDEN MAC_FILTER MAC_FILTER_ACCEPT ISOLATE_CLIENTS
              SHARE_METHOD IEEE80211N IEEE80211AC IEEE80211AX HT_CAPAB VHT_CAPAB DRIVER NO_VIRT COUNTRY FREQ_BAND
              NEW_MACADDR DAEMONIZE DAEMON_PIDFILE DAEMON_LOGFILE DNS_LOGFILE NO_HAVEGED WIFI_IFACE INTERNET_IFACE
-             SSID PASSPHRASE USE_PSK ADDN_HOSTS)
+             SSID PASSPHRASE USE_PSK ADDN_HOSTS DHCP_HOSTS)
 
 FIX_UNMANAGED=0
 LIST_RUNNING=0
@@ -1074,7 +1080,7 @@ for ((i=0; i<$#; i++)); do
     fi
 done
 
-GETOPT_ARGS=$(getopt -o hc:w:g:de:nm: -l "help","hidden","hostapd-debug:","hostapd-timestamps","redirect-to-localhost","mac-filter","mac-filter-accept:","isolate-clients","ieee80211n","ieee80211ac","ieee80211ax","ht_capab:","vht_capab:","driver:","no-virt","fix-unmanaged","country:","freq-band:","mac:","dhcp-dns:","daemon","pidfile:","logfile:","dns-logfile:","stop:","list","list-running","list-clients:","version","psk","no-haveged","no-dns","no-dnsmasq","mkconfig:","config:" -n "$PROGNAME" -- "$@")
+GETOPT_ARGS=$(getopt -o hc:w:g:de:nm: -l "help","hidden","hostapd-debug:","hostapd-timestamps","redirect-to-localhost","mac-filter","mac-filter-accept:","isolate-clients","ieee80211n","ieee80211ac","ieee80211ax","ht_capab:","vht_capab:","driver:","no-virt","fix-unmanaged","country:","freq-band:","mac:","dhcp-dns:","daemon","pidfile:","logfile:","dns-logfile:","stop:","list","list-running","list-clients:","version","psk","no-haveged","no-dns","no-dnsmasq","mkconfig:","config:","dhcp-hosts:" -n "$PROGNAME" -- "$@")
 [[ $? -ne 0 ]] && exit 1
 eval set -- "$GETOPT_ARGS"
 
@@ -1130,6 +1136,11 @@ while :; do
             ADDN_HOSTS="$1"
             shift
             ;;
+        --dhcp-hosts)
+            shift
+            DHCP_HOSTS="$1"
+            shift
+            ;;
         -n)
             shift
             SHARE_METHOD=none
@@ -1796,6 +1807,13 @@ EOF
     [[ -n "$MTU" ]] && echo "dhcp-option-force=option:mtu,${MTU}" >> $CONFDIR/dnsmasq.conf
     [[ $ETC_HOSTS -eq 0 ]] && echo no-hosts >> $CONFDIR/dnsmasq.conf
     [[ -n "$ADDN_HOSTS" ]] && echo "addn-hosts=${ADDN_HOSTS}" >> $CONFDIR/dnsmasq.conf
+    if [[ -n "$DHCP_HOSTS" ]]; then
+        for HOST in $DHCP_HOSTS; do
+            echo "dhcp-host=${HOST}" >> $CONFDIR/dnsmasq.conf
+        done
+    fi
+
+
     if [[ -n "$DNS_LOGFILE" ]]; then
         cat << EOF >> $CONFDIR/dnsmasq.conf
 log-queries

src/scripts/create_ap.conf

@@ -27,3 +27,5 @@ INTERNET_IFACE=eth0
 SSID=MyAccessPoint
 PASSPHRASE=12345678
 USE_PSK=0
+DHCP_HOSTS=
+