usr.sbin/bsdinstall/scripts/wlanconfig

   1 #!/bin/sh
   2 #-
   3 # Copyright (c) 2011 Nathan Whitehorn
   4 # Copyright (c) 2013-2016 Devin Teske
   5 # All rights reserved.
   6 #
   7 # Redistribution and use in source and binary forms, with or without
   8 # modification, are permitted provided that the following conditions
   9 # are met:
  10 # 1. Redistributions of source code must retain the above copyright
  11 #    notice, this list of conditions and the following disclaimer.
  12 # 2. Redistributions in binary form must reproduce the above copyright
  13 #    notice, this list of conditions and the following disclaimer in the
  14 #    documentation and/or other materials provided with the distribution.
  15 #
  16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26 # SUCH DAMAGE.
  27 #
  28 # $FreeBSD$
  29 #
  30 ############################################################ INCLUDES
  31
  32 BSDCFG_SHARE="/usr/share/bsdconfig"
  33 . $BSDCFG_SHARE/common.subr || exit 1
  34 f_include $BSDCFG_SHARE/dialog.subr
  35 f_dialog_backtitle "FreeBSD Installer"
  36
  37 ############################################################ FUNCTIONS
  38
  39 country_set()
  40 {
  41         local error_str iface_up ifconfig_args=
  42
  43         #
  44         # Setup what was selected
  45         # NB: Do not change order of arguments (or regdomain will be ignored)
  46         #
  47         [ "$2" ] && ifconfig_args="$ifconfig_args country $2"
  48         [ "$1" ] && ifconfig_args="$ifconfig_args regdomain $1"
  49         [ "$ifconfig_args" ] || return $SUCCESS # Nothing to do
  50         ifconfig_args="${ifconfig_args# }"
  51
  52         # Regdomain/country cannot be applied while interface is running
  53         iface_up=$( ifconfig -lu | grep -w "$WLAN_IFACE" )
  54         [ "$iface_up" ] && ifconfig "$WLAN_IFACE" down
  55         error_str=$( ifconfig "$WLAN_IFACE" $ifconfig_args 2>&1 |
  56                 sed -e 's/ifconfig: //' )
  57         if [ "$iface_up" ]; then
  58                 # Restart wpa_supplicant(8) (should not fail).
  59                 wpa_supplicant -B -i "$WLAN_IFACE" -c \
  60                         "$BSDINSTALL_TMPETC/wpa_supplicant.conf"
  61         fi
  62         if [ "$error_str" ]; then
  63                 $DIALOG \
  64                         --title "$msg_error" \
  65                         --backtitle "$DIALOG_BACKTITLE" \
  66                         --yes-label Change \
  67                         --no-label Ignore \
  68                         --yesno \
  69                         "Error while applying chosen settings ($error_str)" \
  70                         0 0 || return $SUCCESS # Skip
  71                 return $FAILURE # Restart
  72         else
  73                 awk 'sub(/^\t\t/,"")||1' \
  74                         > "$BSDINSTALL_TMPETC/rc.conf.net.wlan" <<-EOF
  75                 create_args_$WLAN_IFACE="$ifconfig_args"
  76                 EOF
  77         fi
  78
  79         return $SUCCESS
  80 }
  81
  82 dialog_country_select()
  83 {
  84         local input regdomains countries regdomain country prompt
  85         local no_default="<not selected>"
  86         local default_regdomain="${1:-$no_default}"
  87         local default_country="${2:-$no_default}"
  88
  89         #
  90         # Parse available countries/regdomains
  91         #
  92         input=$( ifconfig "$WLAN_IFACE" list countries | sed -e 's/DEBUG//gi' )
  93         regdomains=$( echo "$input" | awk '
  94                 sub(/.*domains:/, ""), /[^[:alnum:][[:space:]]/ {
  95                         n = split($0, domains)
  96                         for (i = 1; i <= n; i++)
  97                                 printf "'\''%s'\'' '\'\''", domains[i]
  98                 }
  99         ' | sort )
 100         countries=$( echo "$input" | awk '
 101                 sub(/Country codes:/, ""), sub(/Regulatory.*/, "") {
 102                         while (match($0, /[[:upper:]][[:upper:][:digit:]] /)) {
 103                                 country = substr($0, RSTART)
 104                                 sub(/ [[:upper:]][[:upper:][:digit:]].*/, "", country)
 105                                 code = substr(country, 1, 2)
 106                                 desc = substr(country, 4)
 107                                 sub(/[[:space:]]*$/, "", desc)
 108                                 printf "'\''%s'\'' '\''%s'\''\n", code, desc
 109                                 $0 = substr($0, RSTART + RLENGTH)
 110                         }
 111                 }
 112         ' | sort )
 113
 114         f_dialog_title "Regdomain selection"
 115         prompt="Select your regdomain."
 116         eval f_dialog_menu_size height width rows \
 117                 \"\$DIALOG_TITLE\" \"\$DIALOG_BACKTITLE\" \
 118                 \"\$prompt\" \"\" $regdomains
 119         regdomain=$( eval $DIALOG \
 120                 --title \"\$DIALOG_TITLE\"             \
 121                 --backtitle \"\$DIALOG_BACKTITLE\"     \
 122                 --cancel-label \"\$msg_skip\"          \
 123                 --default-item \"\$default_regdomain\" \
 124                 --menu \"\$prompt\"                    \
 125                 $height $width $rows                   \
 126                 $regdomains                            \
 127                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 128         )
 129         f_dialog_data_sanitize regdomain
 130
 131         f_dialog_title "Country selection"
 132         prompt="Select your country."
 133         eval f_dialog_menu_size height width rows \
 134                 \"\$DIALOG_TITLE\" \"\$DIALOG_BACKTITLE\" \
 135                 \"\$prompt\" \"\" $countries
 136         country=$( eval $DIALOG \
 137                 --title \"\$DIALOG_TITLE\"           \
 138                 --backtitle \"\$DIALOG_BACKTITLE\"   \
 139                 --cancel-label \"\$msg_skip\"        \
 140                 --default-item \"\$default_country\" \
 141                 --menu \"\$prompt\"                  \
 142                 $height $width $rows                 \
 143                 $countries                           \
 144                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 145         )
 146         f_dialog_data_sanitize country
 147
 148         country_set "$regdomain" "$country"
 149 }
 150
 151 ############################################################ MAIN
 152
 153 : > "$BSDINSTALL_TMPETC/wpa_supplicant.conf"
 154 chmod 0600 "$BSDINSTALL_TMPETC/wpa_supplicant.conf"
 155
 156 cat >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" << EOF
 157 ctrl_interface=/var/run/wpa_supplicant
 158 eapol_version=2
 159 ap_scan=1
 160 fast_reauth=1
 161
 162 EOF
 163
 164 #
 165 # Try to reach wpa_supplicant. If it isn't running and we can modify the
 166 # existing system, start it. Otherwise, fail.
 167 #
 168 (wpa_cli ping >/dev/null 2>/dev/null || ([ "$BSDINSTALL_CONFIGCURRENT" ] &&
 169         wpa_supplicant -B -i $1 -c "$BSDINSTALL_TMPETC/wpa_supplicant.conf")) ||
 170         ($DIALOG --backtitle "$DIALOG_BACKTITLE" --title "$msg_error" --msgbox \
 171         "Could not start wpa_supplicant!" 0 0; exit 1) || exit 1
 172
 173 # See if we succeeded
 174 wpa_cli ping >/dev/null 2>/dev/null
 175 if [ $? -ne 0 -a ! "$BSDINSTALL_CONFIGCURRENT" ]; then
 176         $DIALOG \
 177                 --title "$msg_error" \
 178                 --backtitle "$DIALOG_BACKTITLE" \
 179                 --msgbox "Wireless cannot be configured without making changes to the local system!" \
 180                 0 0
 181         exit 1
 182 fi
 183
 184 #
 185 # There is no way to check country/regdomain without (possible)
 186 # interface state modification
 187 #
 188 if [ "$BSDINSTALL_CONFIGCURRENT" ]; then
 189         # Get current country/regdomain for selected interface
 190         WLAN_IFACE=$( wpa_cli ifname | tail -1 )
 191         INPUT=$( ifconfig "$WLAN_IFACE" list regdomain | head -1 )
 192         DEF_REGDOMAIN=$( echo $INPUT | cut -w -f 2 )
 193         DEF_COUNTRY=$( echo $INPUT | cut -w -f 4 )
 194         [ "$DEF_REGDOMAIN" = 0 ] && DEF_REGDOMAIN="<not selected>"
 195         [ "$DEF_COUNTRY" = 0 ] && DEF_COUNTRY="<not selected>"
 196         f_dialog_title "Regdomain/country"
 197         $DIALOG \
 198                 --title "$DIALOG_TITLE" \
 199                 --backtitle "$DIALOG_BACKTITLE" \
 200                 --yesno "Change regdomain/country (now $DEF_REGDOMAIN/$DEF_COUNTRY)?" \
 201                 0 0
 202         if [ $? -eq 0 ]; then
 203                 while :; do
 204                         dialog_country_select "$DEF_REGDOMAIN" "$DEF_COUNTRY"
 205                         if [ $? -eq $SUCCESS ]; then
 206                                 break
 207                         fi
 208                 done
 209         fi
 210 fi
 211
 212 while :; do
 213         SCANSSID=0
 214         output=$( wpa_cli scan 2>&1 )
 215         f_dprintf "%s" "$output"
 216         f_dialog_title "Scanning"
 217         $DIALOG \
 218                 --title "$DIALOG_TITLE" \
 219                 --backtitle "$DIALOG_BACKTITLE" \
 220                 --ok-label "$msg_skip" \
 221                 --pause "Waiting 5 seconds to scan for wireless networks..." \
 222                 9 40 5 || exit 1
 223
 224         SCAN_RESULTS=$( wpa_cli scan_results )
 225         NETWORKS=$( echo "$SCAN_RESULTS" | awk -F '\t' '
 226                 /..:..:..:..:..:../ && $5 { printf("\"%s\"\t%s\n", $5, $4) }
 227         ' | sort | uniq )
 228
 229         if [ ! "$NETWORKS" ]; then
 230                 f_dialog_title "$msg_error"
 231                 $DIALOG \
 232                         --title "$DIALOG_TITLE" \
 233                         --backtitle "$DIALOG_BACKTITLE" \
 234                         --yesno "No wireless networks were found. Rescan?" \
 235                         0 0 && continue
 236                 exit 1
 237         fi
 238
 239         f_dialog_title "Network Selection"
 240         NETWORK=$( sh -c "$DIALOG \
 241                 --title \"$DIALOG_TITLE\" \
 242                 --backtitle \"$DIALOG_BACKTITLE\" \
 243                 --extra-button \
 244                 --extra-label \"Rescan\" \
 245                 --menu \"Select a wireless network to connect to.\" \
 246                 0 0 0 \
 247                 $( echo $NETWORKS | tr '\n' ' ' )" \
 248                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 249         )
 250         retval=$?
 251         f_dialog_data_sanitize NETWORK
 252         case $retval in
 253         $DIALOG_OK) break ;;
 254         $DIALOG_CANCEL)
 255                 # here we ask if the user wants to select the network manually
 256                 f_dialog_title "Network Selection"
 257                 f_dialog_yesno "Do you want to select the network manually?" || exit 1
 258                 f_dialog_input NETWORK "Enter SSID" || exit 1
 259                 ENCRYPTION=$( $DIALOG \
 260                         --title "$DIALOG_TITLE" \
 261                         --backtitle "$DIALOG_BACKTITLE" \
 262                         --menu "Select encryption type" \
 263                         0 0 0 \
 264                         "1 WPA/WPA2 PSK" "" \
 265                         "2 WPA/WPA2 EAP" "" \
 266                         "3 WEP" "" \
 267                         "0 None" "" \
 268                         2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 269                 ) || exit 1
 270                 SCANSSID=1
 271                 break
 272                 ;;
 273         $DIALOG_EXTRA) # Rescan
 274                 ;;
 275         esac
 276 done
 277
 278 [ "$ENCRYPTION" ] || ENCRYPTION=$( echo "$NETWORKS" |
 279         awk -F '\t' "/^\"$NETWORK\"\t/ { printf(\"%s\n\", \\\$2 ) }" )
 280
 281 if echo $ENCRYPTION | grep -q 'PSK'; then
 282         PASS=$( $DIALOG \
 283                 --title "WPA Setup" \
 284                 --backtitle "$DIALOG_BACKTITLE" \
 285                 --insecure \
 286                 --mixedform "" \
 287                 0 0 0 \
 288                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
 289                 "Password" 2 0 "" 2 12 15 63 1 \
 290                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 291         ) || exec "$0" "$@"
 292         awk 'sub(/^\t/,"")||1' \
 293                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<-EOF
 294         network={
 295                 ssid="$NETWORK"
 296                 scan_ssid=$SCANSSID
 297                 psk="$PASS"
 298                 priority=5
 299         }
 300         EOF
 301 elif echo $ENCRYPTION | grep -q EAP; then
 302         USERPASS=$( $DIALOG \
 303                 --title "WPA-Enterprise Setup" \
 304                 --backtitle "$DIALOG_BACKTITLE" \
 305                 --insecure \
 306                 --mixedform "" \
 307                 0 0 0 \
 308                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
 309                 "Username" 2 0 "" 2 12 25 63 0 \
 310                 "Password" 3 0 "" 3 12 25 63 1 \
 311                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 312         ) || exec "$0" "$@"
 313         awk 'sub(/^\t/,"")||1' \
 314                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<-EOF
 315         network={
 316                 ssid="$NETWORK"
 317                 scan_ssid=$SCANSSID
 318                 key_mgmt=WPA-EAP$(
 319                 echo "$USERPASS" | awk '
 320                         NR == 1 { printf "\n\t\tidentity=\"%s\"", $1 }
 321                         NR == 2 { printf "\n\t\tpassword=\"%s\"", $1 }
 322                 ' )
 323                 priority=5
 324         }
 325         EOF
 326 elif echo $ENCRYPTION | grep -q WEP; then
 327         WEPKEY=$( $DIALOG \
 328                 --title "WEP Setup" \
 329                 --backtitle "$DIALOG_BACKTITLE" \
 330                 --insecure \
 331                 --mixedform "" \
 332                 0 0 0 \
 333                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
 334                 "WEP Key 0" 2 0 "" 2 12 15 0 1 \
 335                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 336         ) || exec "$0" "$@"
 337         awk 'sub(/^\t/,"")||1' \
 338                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<-EOF
 339         network={
 340                 ssid="$NETWORK"
 341                 scan_ssid=$SCANSSID
 342                 key_mgmt=NONE
 343                 wep_key0="$WEPKEY"
 344                 wep_tx_keyidx=0
 345                 priority=5
 346         }
 347         EOF
 348 else # Open
 349         awk 'sub(/^\t/,"")||1' \
 350                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<-EOF
 351         network={
 352                 ssid="$NETWORK"
 353                 scan_ssid=$SCANSSID
 354                 key_mgmt=NONE
 355                 priority=5
 356         }
 357         EOF
 358 fi
 359
 360 # Connect to any open networks policy
 361 cat >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" << EOF
 362 network={
 363         priority=0
 364         key_mgmt=NONE
 365 }
 366 EOF
 367
 368 # Bring up new network
 369 if [ "$BSDINSTALL_CONFIGCURRENT" ]; then
 370         output=$( wpa_cli reconfigure 2>&1 )
 371         f_dprintf "%s" "$output"
 372 fi
 373
 374 exit $SUCCESS
 375
 376 ################################################################################
 377 # END
 378 ################################################################################