xref: /freebsd/usr.sbin/bsdinstall/scripts/wlanconfig (revision 641a6cfb86023499caafe26a4d821a0b885cf00b)
1#!/bin/sh
2#-
3# Copyright (c) 2011 Nathan Whitehorn
4# All rights reserved.
5#
6# Redistribution and use in source and binary forms, with or without
7# modification, are permitted provided that the following conditions
8# are met:
9# 1. Redistributions of source code must retain the above copyright
10#    notice, this list of conditions and the following disclaimer.
11# 2. Redistributions in binary form must reproduce the above copyright
12#    notice, this list of conditions and the following disclaimer in the
13#    documentation and/or other materials provided with the distribution.
14#
15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25# SUCH DAMAGE.
26#
27# $FreeBSD$
28
29echo -n > $BSDINSTALL_TMPETC/wpa_supplicant.conf
30chmod 0600 $BSDINSTALL_TMPETC/wpa_supplicant.conf
31
32echo "ctrl_interface=/var/run/wpa_supplicant" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
33echo "eapol_version=2" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
34echo "ap_scan=1" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
35echo "fast_reauth=1" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
36echo >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
37
38# Try to reach wpa_supplicant. If it isn't running and we can modify the
39# existing system, start it. Otherwise, fail.
40(wpa_cli ping >/dev/null 2>/dev/null || ([ ! -z $BSDINSTALL_CONFIGCURRENT ] && \
41	wpa_supplicant -B -i $1 -c $BSDINSTALL_TMPETC/wpa_supplicant.conf)) || \
42	(dialog --backtitle "FreeBSD Installer" --title "Error" --msgbox \
43	"Could not start wpa_supplicant!" 0 0; exit 1) || exit 1
44
45# See if we succeeded
46wpa_cli ping >/dev/null 2>/dev/null
47if [ $? -ne 0 -a -z $BSDINSTALL_CONFIGCURRENT ]; then
48	dialog --backtitle "FreeBSD Installer" --title "Error" --msgbox \
49	"Wireless cannot be configured without making changes to the local system!" \ 0 0
50	exit 1
51fi
52
53wpa_cli scan >>$BSDINSTALL_LOG
54dialog --backtitle "FreeBSD Installer" --title "Scanning" --ok-label "Skip" \
55	--pause "Waiting 5 seconds to scan for wireless networks..." \
56	9 40 5 || exit 1
57
58SCAN_RESULTS=`wpa_cli scan_results`
59NETWORKS=`echo "$SCAN_RESULTS" | awk -F '\t' \
60   '/..:..:..:..:..:../ {if (length($5) > 0) printf("\"%s\"\t%s\n", $5, $4);}' |
61   sort | uniq`
62
63if [ -z $NETWORKS ]; then
64	dialog --backtitle "FreeBSD Installer" --title "Error" \
65	    --yesno "No wireless networks were found. Rescan?" 0 0 && \
66	    exec $0 $@
67	exit 1
68fi
69
70exec 3>&1
71NETWORK=`sh -c "dialog --extra-button --extra-label \"Rescan\" \
72    --backtitle \"FreeBSD Installer\" --title \"Network Selection\" --menu \
73    \"Select a wireless network to connect to.\" 0 0 0 \
74    $(echo $NETWORKS | tr '\n' ' ')" 2>&1 1>&3`
75case $? in
760)	# OK
77	;;
781)	# Cancel
79	exit 1
80	;;
813)	# Rescan
82	exec $0 $@
83	;;
84esac
85exec 3>&-
86
87ENCRYPTION=`echo "$NETWORKS" | awk -F '\t' \
88    "/^\"$NETWORK\"\t/ {printf(\"%s\n\", \\\$2 );}"`
89
90if echo $ENCRYPTION | grep -q 'PSK'; then
91	exec 3>&1
92	PASS=`dialog --insecure --backtitle "FreeBSD Installer" \
93	    --title "WPA Setup" --mixedform "" 0 0 0 \
94		"SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
95		"Password" 2 0 "" 2 12 15 63 1 \
96		2>&1 1>&3` \
97	|| exec $0 $@
98	exec 3>&-
99echo "network={
100	ssid=\"$NETWORK\"
101	psk=\"$PASS\"
102	priority=5
103}" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
104elif echo $ENCRYPTION | grep -q WEP; then
105	echo FOO
106	exec 3>&1
107	WEPKEY=`dialog --insecure --backtitle "FreeBSD Installer" \
108	    --title "WEP Setup" --mixedform "" 0 0 0 \
109		"SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
110		"WEP Key 0" 2 0 "" 2 12 15 0 1 \
111		2>&1 1>&3` \
112	|| exec $0 $@
113echo "network={
114	ssid=\"$NETWORK\"
115	key_mgmt=NONE
116	wep_key0=\"$WEPKEY\"
117	wep_tx_keyidx=0
118	priority=5
119}" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
120else	# Open
121echo "network={
122	ssid=\"$NETWORK\"
123	key_mgmt=NONE
124	priority=5
125}" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
126fi
127
128# Connect to any open networks policy
129echo "network={
130	priority=5
131	key_mgmt=NONE
132}" >> $BSDINSTALL_TMPETC/wpa_supplicant.conf
133
134# Bring up new network
135test ! -z $BSDINSTALL_CONFIGCURRENT && wpa_cli reconfigure >>$BSDINSTALL_LOG
136
137exit 0
138