mirror of
https://github.com/YunoHost-Apps/hotspot_ynh.git
synced 2024-09-03 19:25:53 +02:00
427 lines
9.5 KiB
Bash
427 lines
9.5 KiB
Bash
#!/bin/bash
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### BEGIN INIT INFO
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# Provides: ynh-hotspot
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# Required-Start: $network $remote_fs $syslog $all
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# Required-Stop: $network $remote_fs $syslog
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# Default-Start: 2 3 4 5
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# Default-Stop: 0 1 6
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# Short-Description: Set prerequisites for wifi hotspot.
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# Description: Set prerequisites for wifi hotspot.
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### END INIT INFO
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# Functions
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## State functions
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has_vpnclient_app() {
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[ -e /tmp/.ynh-vpnclient-started ]
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}
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has_ip6delegatedprefix() {
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[ "${ynh_ip6_net}" != none ]
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}
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is_ndproxy_set() {
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proxy=$(ip -6 neighbour show proxy)
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[ ! -z "${proxy}" ]
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}
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is_nat_set() {
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internet_device=${1}
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iptables -nvt nat -L POSTROUTING | grep MASQUERADE | grep -q "${internet_device}"
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}
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is_ip4nataddr_set() {
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ip address show dev "${ynh_wifi_device}" 2> /dev/null | grep -q "${ynh_ip4_nat_prefix}.1/24"
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}
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is_ip6addr_set() {
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ip address show dev "${ynh_wifi_device}" 2> /dev/null | grep -q "${ynh_ip6_addr}/64"
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}
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is_forwarding_set() {
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ip6=$(sysctl net.ipv6.conf.all.forwarding | awk '{ print $NF; }')
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ip4=$(sysctl net.ipv4.conf.all.forwarding | awk '{ print $NF; }')
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[ "${ip6}" -eq 1 -a "${ip4}" -eq 1 ]
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}
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is_hostapd_running() {
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service hostapd status &> /dev/null
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}
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is_radvd_running() {
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service radvd status &> /dev/null
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}
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is_dhcpd_running() {
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service isc-dhcp-server status &> /dev/null
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}
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is_running() {
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( has_ip6delegatedprefix && is_ip6addr_set && is_radvd_running && is_ndproxy_set || ! has_ip6delegatedprefix )\
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&& is_nat_set "${new_internet_device}" && is_ip4nataddr_set && is_forwarding_set && is_hostapd_running\
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&& is_dhcpd_running
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}
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## Setters
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set_ndproxy() {
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ip -6 neighbour add proxy "${ynh_ip6_addr}" dev "${ynh_wifi_device}"
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}
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set_nat() {
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internet_device=${1}
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iptables -t nat -A POSTROUTING -o "${internet_device}" -j MASQUERADE
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}
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set_ip4nataddr() {
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ip address add "${ynh_ip4_nat_prefix}.1/24" dev "${ynh_wifi_device}"
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}
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set_ip6addr() {
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ip address delete "${ynh_ip6_addr}/64" dev tun0 &> /dev/null
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ip address add "${ynh_ip6_addr}/64" dev "${ynh_wifi_device}"
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}
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set_forwarding() {
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sysctl -w net.ipv6.conf.all.forwarding=1 > /dev/null
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sysctl -w net.ipv4.conf.all.forwarding=1 > /dev/null
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}
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start_hostapd() {
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cp /etc/hostapd/hostapd.conf{.tpl,}
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sed "s|<TPL:WIFI_DEVICE>|${ynh_wifi_device}|g" -i /etc/hostapd/hostapd.conf
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sed "s|<TPL:WIFI_SSID>|${ynh_wifi_ssid}|g" -i /etc/hostapd/hostapd.conf
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sed "s|<TPL:WIFI_PASSPHRASE>|${ynh_wifi_passphrase}|g" -i /etc/hostapd/hostapd.conf
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sed "s|<TPL:WIFI_CHANNEL>|${ynh_wifi_channel}|g" -i /etc/hostapd/hostapd.conf
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if [ "${ynh_wifi_n}" -eq 1 ]; then
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sed "s|<TPL:N_COMMENT>||g" -i /etc/hostapd/hostapd.conf
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else
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sed "s|<TPL:N_COMMENT>|#|g" -i /etc/hostapd/hostapd.conf
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fi
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service hostapd start
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}
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start_radvd() {
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cp /etc/radvd.conf{.tpl,}
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sed "s|<TPL:WIFI_DEVICE>|${ynh_wifi_device}|g" -i /etc/radvd.conf
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sed "s|<TPL:IP6_NET>|${ynh_ip6_net}|g" -i /etc/radvd.conf
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sed "s|<TPL:IP6_DNS0>|${ynh_ip6_dns0}|g" -i /etc/radvd.conf
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sed "s|<TPL:IP6_DNS1>|${ynh_ip6_dns1}|g" -i /etc/radvd.conf
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service radvd start
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}
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start_dhcpd() {
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cp /etc/dhcp/dhcpd.conf{.tpl,}
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sed "s|<TPL:IP4_DNS0>|${ynh_ip4_dns0}|g" -i /etc/dhcp/dhcpd.conf
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sed "s|<TPL:IP4_DNS1>|${ynh_ip4_dns1}|g" -i /etc/dhcp/dhcpd.conf
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sed "s|<TPL:WIFI_DEVICE>|${ynh_wifi_device}|g" -i /etc/dhcp/dhcpd.conf
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sed "s|<TPL:IP4_NAT_PREFIX>|${ynh_ip4_nat_prefix}|g" -i /etc/dhcp/dhcpd.conf
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service isc-dhcp-server start
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}
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## Unsetters
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unset_ndproxy() {
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ip -6 neighbour delete proxy "${ynh_ip6_addr}" dev "${ynh_wifi_device}"
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}
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unset_nat() {
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internet_device=${1}
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iptables -t nat -D POSTROUTING -o "${internet_device}" -j MASQUERADE
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}
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unset_ip4nataddr() {
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ip address delete "${ynh_ip4_nat_prefix}.1/24" dev "${ynh_wifi_device}"
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}
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unset_ip6addr() {
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ip address delete "${ynh_ip6_addr}/64" dev "${ynh_wifi_device}"
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}
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unset_forwarding() {
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sysctl -w net.ipv6.conf.all.forwarding=0 > /dev/null
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sysctl -w net.ipv4.conf.all.forwarding=0 > /dev/null
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}
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stop_hostapd() {
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service hostapd stop
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}
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stop_radvd() {
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service radvd stop
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}
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stop_dhcpd() {
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service isc-dhcp-server stop
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}
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## Tools
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moulinette_get() {
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var=${1}
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value=$(yunohost app setting hotspot "${var}")
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if [[ "${value}" =~ "An instance is already running" ]]; then
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echo "${value}" >&2
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exit 1
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fi
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echo "${value}"
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}
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moulinette_set() {
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var=${1}
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value=${2}
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msg=$(yunohost app setting hotspot "${var}" -v "${value}")
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if [ ! $? -eq 0 ]; then
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echo "${msg}" >&2
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exit 1
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fi
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}
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# Variables
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echo -n "Retrieving Yunohost settings... "
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ynh_wifi_device=$(moulinette_get wifi_device)
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ynh_wifi_ssid=$(moulinette_get wifi_ssid)
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ynh_wifi_passphrase=$(moulinette_get wifi_passphrase)
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ynh_wifi_channel=$(moulinette_get wifi_channel)
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ynh_wifi_n=$(moulinette_get wifi_n)
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ynh_ip6_addr=$(moulinette_get ip6_addr)
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ynh_ip6_net=$(moulinette_get ip6_net)
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ynh_ip6_dns0=$(moulinette_get ip6_dns0)
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ynh_ip6_dns1=$(moulinette_get ip6_dns1)
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ynh_ip4_dns0=$(moulinette_get ip4_dns0)
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ynh_ip4_dns1=$(moulinette_get ip4_dns1)
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ynh_ip4_nat_prefix=$(moulinette_get ip4_nat_prefix)
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old_internet_device=$(moulinette_get internet_device)
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new_internet_device=$(ip route | awk '/default via/ { print $NF; }')
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# Switch the NAT interface if there is a VPN
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ip link show dev tun0 &> /dev/null
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if [ "$?" -eq 0 ]; then
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new_internet_device=tun0
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fi
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echo "OK"
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# Script
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case "$1" in
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start)
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if is_running; then
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echo "Already started"
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else
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echo "[hotspot] Starting..."
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touch /tmp/.ynh-hotspot-started
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if [ "${new_internet_device}" == tun0 ]; then
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moulinette_set vpnclient yes
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else
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moulinette_set vpnclient no
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fi
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# Set NDP proxy
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if has_ip6delegatedprefix && ! is_ndproxy_set; then
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echo "Set NDP proxy"
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set_ndproxy
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fi
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# Check old state of the ipv4 NAT settings
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if [ ! -z "${old_internet_device}" -a "${new_internet_device}" != "${old_internet_device}" ]\
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&& is_nat_set "${old_internet_device}"; then
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unset_nat "${old_internet_device}"
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fi
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# Set ipv4 NAT
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if ! is_nat_set "${new_internet_device}"; then
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echo "Set NAT"
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set_nat "${new_internet_device}"
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fi
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# Set ipv4 NAT address
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if ! is_ip4nataddr_set; then
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echo "Set IPv4 NAT address"
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set_ip4nataddr
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fi
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# Set the ipv6 address
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if has_ip6delegatedprefix && ! is_ip6addr_set; then
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echo "Set IPv6 address"
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set_ip6addr
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fi
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# Set forwarding for ipv6 and ipv4
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if ! is_forwarding_set; then
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echo "Set forwarding"
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set_forwarding
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fi
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# Run hostapd
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if ! is_hostapd_running; then
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echo "Run hostapd"
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start_hostapd
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sleep 1
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fi
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# Run radvd
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# must be running after hostapd
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if has_ip6delegatedprefix && ! is_radvd_running; then
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echo "Run radvd"
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start_radvd
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fi
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# Run dhcpd
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# "options routers" addr (is_ip6addr_set) must be set before
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if ! is_dhcpd_running; then
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echo "Run dhcpd"
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start_dhcpd
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fi
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# Update dynamic settings
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moulinette_set internet_device "${new_internet_device}"
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fi
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# Restart php5-fpm at the first start (it needs to be restarted after the slapd start)
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if [ ! -e /tmp/.ynh-hotspot-boot ]; then
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touch /tmp/.ynh-hotspot-boot
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service php5-fpm restart
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fi
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;;
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stop)
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echo "[hotspot] Stopping..."
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rm /tmp/.ynh-hotspot-started
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if has_ip6delegatedprefix && is_ndproxy_set; then
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echo "Unset NDP proxy"
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unset_ndproxy
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fi
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if is_nat_set "${old_internet_device}"; then
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echo "Unset NAT"
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unset_nat "${old_internet_device}"
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fi
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if is_ip4nataddr_set; then
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echo "Unset IPv4 NAT address"
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unset_ip4nataddr
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fi
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if has_ip6delegatedprefix && is_ip6addr_set; then
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echo "Unset IPv6 address"
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unset_ip6addr
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fi
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if is_forwarding_set; then
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echo "Unset forwarding"
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unset_forwarding
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fi
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if is_hostapd_running; then
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echo "Stop hostapd"
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stop_hostapd
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fi
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if has_ip6delegatedprefix && is_radvd_running; then
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echo "Stop radvd"
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stop_radvd
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fi
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if is_dhcpd_running; then
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echo "Stop dhcpd"
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stop_dhcpd
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fi
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if has_vpnclient_app; then
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service ynh-vpnclient start
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fi
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;;
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status)
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exitcode=0
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if has_ip6delegatedprefix; then
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if is_ndproxy_set; then
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echo "NDP proxy is correctly set"
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else
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echo "NDP proxy is NOT set"
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exitcode=1
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fi
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if is_ip6addr_set; then
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echo "IPv6 address is correctly set"
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else
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echo "IPv6 address is NOT set"
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exitcode=1
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fi
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if is_radvd_running; then
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echo "Radvd is running"
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else
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echo "Radvd is NOT running"
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exitcode=1
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fi
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else
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echo "No IPv6 delegated prefix"
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fi
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if is_nat_set "${new_internet_device}"; then
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echo "NAT is correctly set"
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else
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echo "NAT is NOT set"
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exitcode=1
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fi
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if is_ip4nataddr_set; then
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echo "IPv4 NAT address is correctly set"
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else
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echo "IPv4 NAT address is NOT set"
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exitcode=1
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fi
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if is_forwarding_set; then
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echo "Forwarding is correctly set"
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else
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echo "Forwarding is NOT set"
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exitcode=1
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fi
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if is_hostapd_running; then
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echo "Hostapd is running"
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else
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echo "Hostapd is NOT running"
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exitcode=1
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fi
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if is_dhcpd_running; then
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echo "Dhcpd is running"
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else
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echo "Dhcpd is NOT running"
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exitcode=1
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fi
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exit ${exitcode}
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;;
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*)
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echo "Usage: $0 {start|stop|status}"
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exit 1
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;;
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esac
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exit 0
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