/etc/wpa_supplicant/ifupdown.sh is in wpasupplicant 2.1-0ubuntu1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 | #!/bin/sh
#####################################################################
## Purpose
# This file is executed by ifupdown in pre-up, post-up, pre-down and
# post-down phases of network interface configuration. It allows
# ifup(8), and ifdown(8) to manage wpa_supplicant(8) and wpa_cli(8)
# processes running in daemon mode.
#
# /etc/wpa_supplicant/functions.sh is sourced by this file.
#
# This file is provided by the wpasupplicant package.
#####################################################################
# Copyright (C) 2006 - 2009 Debian/Ubuntu wpasupplicant Maintainers
# <pkg-wpa-devel@lists.alioth.debian.org>
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# On Debian GNU/Linux systems, the text of the GPL license,
# version 2, can be found in /usr/share/common-licenses/GPL-2.
if [ -n "$IF_WPA_MAINT_DEBUG" ]; then
set -x
fi
# quit if we're called for the loopback
if [ "$IFACE" = lo ]; then
exit 0
fi
# allow wpa_supplicant interface to be specified via wpa-iface
# useful for starting wpa_supplicant on one interface of a bridge
if [ -n "$IF_WPA_IFACE" ]; then
WPA_IFACE="$IF_WPA_IFACE"
else
WPA_IFACE="$IFACE"
fi
# source functions
if [ -f /etc/wpa_supplicant/functions.sh ]; then
. /etc/wpa_supplicant/functions.sh
else
exit 0
fi
# quit if executables are not installed
if [ ! -x "$WPA_SUP_BIN" ] || [ ! -x "$WPA_CLI_BIN" ]; then
exit 0
fi
do_start () {
if test_wpa_cli; then
# if wpa_action is active for this IFACE, do nothing
ifupdown_locked && exit 0
# if the administrator is calling ifup, say something useful
if [ "$PHASE" = "pre-up" ]; then
wpa_msg stderr "wpa_action is managing ifup/ifdown state of $WPA_IFACE"
wpa_msg stderr "execute \`ifdown --force $WPA_IFACE' to stop wpa_action"
fi
exit 1
elif ! set | grep -q "^IF_WPA"; then
# no wpa- option defined for IFACE, do nothing
exit 0
fi
# ensure stale ifupdown_lock marker is purged
ifupdown_unlock
# preliminary sanity checks for roaming daemon
if [ -n "$IF_WPA_ROAM" ]; then
if [ "$METHOD" != "manual" ]; then
wpa_msg stderr "wpa-roam can only be used with the \"manual\" inet METHOD"
exit 1
fi
if [ -n "$IF_WPA_MAPPING_SCRIPT" ]; then
if ! type "$IF_WPA_MAPPING_SCRIPT" >/dev/null; then
wpa_msg stderr "wpa-mapping-script \"$IF_WPA_MAPPING_SCRIPT\" is not valid"
exit 1
fi
fi
if [ -n "$IF_WPA_MAPPING_SCRIPT_PRIORITY" ] && [ -z "$IF_WPA_MAPPING_SCRIPT" ]; then
wpa_msg stderr "\"wpa-mapping-script-priority 1\" is invalid without a wpa-mapping-script"
exit 1
fi
IF_WPA_CONF="$IF_WPA_ROAM"
WPA_ACTION_SCRIPT="/sbin/wpa_action"
fi
# master function; determines if ifupdown.sh should do something or not
if [ -n "$IF_WPA_CONF" ] && [ "$IF_WPA_CONF" != "managed" ]; then
if [ ! -s "$IF_WPA_CONF" ]; then
wpa_msg stderr "cannot read contents of $IF_WPA_CONF"
exit 1
fi
WPA_SUP_CONF_CTRL_DIR=$(sed -n -e 's/[[:space:]]*#.*//g' -e 's/[[:space:]]\+.*$//g' \
-e 's/^ctrl_interface=\(DIR=\)\?\(.*\)/\2/p' "$IF_WPA_CONF")
if [ -n "$WPA_SUP_CONF_CTRL_DIR" ]; then
WPA_CTRL_DIR="$WPA_SUP_CONF_CTRL_DIR"
WPA_SUP_CONF="-c $IF_WPA_CONF"
else
# specify the default ctrl_interface since none was defined in
# the given IF_WPA_CONF
WPA_SUP_CONF="-c $IF_WPA_CONF -C $WPA_CTRL_DIR"
fi
else
# specify the default ctrl_interface
WPA_SUP_CONF="-C $WPA_CTRL_DIR"
fi
}
do_stop () {
if test_wpa_cli; then
# if wpa_action is active for this IFACE and calling ifdown,
# do nothing
ifupdown_locked && exit 0
elif test_wpa_supplicant; then
# wpa_supplicant process exists for this IFACE, but wpa_cli
# process does not. Allow stop mode to kill this process.
:
else
exit 0
fi
}
case "$MODE" in
start)
do_start
case "$PHASE" in
pre-up)
kill_wpa_supplicant
init_wpa_supplicant || exit 1
conf_wpa_supplicant || { kill_wpa_supplicant; exit 1; }
;;
post-up)
init_wpa_cli || { kill_wpa_supplicant; exit 1; }
;;
esac
;;
stop)
do_stop
case "$PHASE" in
pre-down)
kill_wpa_cli
;;
post-down)
kill_wpa_supplicant
;;
*)
wpa_msg stderr "unknown phase: \"$PHASE\""
exit 1
;;
esac
;;
*)
wpa_msg stderr "unknown mode: \"$MODE\""
exit 1
;;
esac
exit 0
|