147 lines
3.1 KiB
Bash
147 lines
3.1 KiB
Bash
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#!/bin/sh
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# Copyright (C) 2006-2009 Debian hostapd maintainers
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# Faidon Liambotis <paravoid@debian.org>
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# Kel Modderman <kel@otaku42.de>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# On Debian GNU/Linux systems, the text of the GPL license,
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# version 2, can be found in /usr/share/common-licenses/GPL-2.
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# quit if we're called for lo
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if [ "$IFACE" = lo ]; then
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exit 0
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fi
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if [ -n "$IF_HOSTAPD" ]; then
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HOSTAPD_CONF="$IF_HOSTAPD"
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else
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exit 0
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fi
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HOSTAPD_BIN="/usr/sbin/hostapd"
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HOSTAPD_PNAME="hostapd"
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HOSTAPD_PIDFILE="/run/hostapd.$IFACE.pid"
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HOSTAPD_OMIT_PIDFILE="/run/sendsigs.omit.d/hostapd.$IFACE.pid"
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if [ ! -x "$HOSTAPD_BIN" ]; then
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exit 0
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fi
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if [ "$VERBOSITY" = "1" ]; then
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TO_NULL="/dev/stdout"
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else
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TO_NULL="/dev/null"
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fi
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hostapd_msg () {
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case "$1" in
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verbose)
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shift
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echo "$HOSTAPD_PNAME: $@" > "$TO_NULL"
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;;
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stderr)
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shift
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echo "$HOSTAPD_PNAME: $@" > /dev/stderr
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;;
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*)
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;;
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esac
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}
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test_hostapd_pidfile () {
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if [ -n "$1" ] && [ -f "$2" ]; then
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if start-stop-daemon --stop --quiet --signal 0 \
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--exec "$1" --pidfile "$2"; then
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return 0
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else
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rm -f "$2"
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return 1
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fi
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else
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return 1
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fi
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}
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init_hostapd () {
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HOSTAPD_OPTIONS="-B -P $HOSTAPD_PIDFILE $HOSTAPD_CONF"
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HOSTAPD_MESSAGE="$HOSTAPD_BIN $HOSTAPD_OPTIONS"
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test_hostapd_pidfile "$HOSTAPD_BIN" "$HOSTAPD_PIDFILE" && return 0
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hostapd_msg verbose "$HOSTAPD_MESSAGE"
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start-stop-daemon --start --oknodo --quiet --exec "$HOSTAPD_BIN" \
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--pidfile "$HOSTAPD_PIDFILE" -- $HOSTAPD_OPTIONS > "$TO_NULL"
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if [ "$?" -ne 0 ]; then
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return "$?"
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fi
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HOSTAPD_PIDFILE_WAIT=0
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until [ -s "$HOSTAPD_PIDFILE" ]; do
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if [ "$HOSTAPD_PIDFILE_WAIT" -ge 5 ]; then
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hostapd_msg stderr \
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"timeout waiting for pid file creation"
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return 1
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fi
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HOSTAPD_PIDFILE_WAIT=$(($HOSTAPD_PIDFILE_WAIT + 1))
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sleep 1
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done
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cat "$HOSTAPD_PIDFILE" > "$HOSTAPD_OMIT_PIDFILE"
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return 0
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}
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kill_hostapd () {
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HOSTAPD_MESSAGE="stopping $HOSTAPD_PNAME via pidfile: $HOSTAPD_PIDFILE"
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test_hostapd_pidfile "$HOSTAPD_BIN" "$HOSTAPD_PIDFILE" || return 0
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hostapd_msg verbose "$HOSTAPD_MESSAGE"
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start-stop-daemon --stop --oknodo --quiet --exec "$HOSTAPD_BIN" \
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--pidfile "$HOSTAPD_PIDFILE" > "$TO_NULL"
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[ "$HOSTAPD_OMIT_PIDFILE" ] && rm -f "$HOSTAPD_OMIT_PIDFILE"
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}
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case "$MODE" in
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start)
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case "$PHASE" in
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pre-up)
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init_hostapd || exit 1
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;;
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*)
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hostapd_msg stderr "unknown phase: \"$PHASE\""
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exit 1
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;;
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esac
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;;
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stop)
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case "$PHASE" in
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post-down)
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kill_hostapd
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;;
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*)
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hostapd_msg stderr "unknown phase: \"$PHASE\""
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exit 1
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;;
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esac
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;;
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*)
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hostapd_msg stderr "unknown mode: \"$MODE\""
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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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