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         f_eval_catch -dk error_str wlanconfig ifconfig "ifconfig %s %s" \
  56                 "$WLAN_IFACE" "$ifconfig_args"
  57         error_str="${error_str#ifconfig: }"
  58         # Restart wpa_supplicant(8) (should not fail).
  59         [ "$iface_up" ] && f_eval_catch -d wlanconfig wpa_supplicant \
  60                 'wpa_supplicant -B -i "%s" -c "%s/wpa_supplicant.conf"' \
  61                 "$WLAN_IFACE" "$BSDINSTALL_TMPETC"
  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 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" << EOF
 157 ctrl_interface=/var/run/wpa_supplicant
 158 eapol_version=2
 159 ap_scan=1
 160 fast_reauth=1
 161
 162 EOF
 163
 164 #
 165 # Try to reach wpa_supplicant. If it isn't running and we can modify the
 166 # existing system, start it. Otherwise, fail.
 167 #
 168 if ! f_eval_catch -d wlanconfig wpa_cli "wpa_cli ping"; then
 169         if [ ! "$BSDINSTALL_CONFIGCURRENT" ]; then
 170                 f_show_err "Wireless cannot be configured without %s" \
 171                            "making changes to the local system!"
 172                 exit 1
 173         fi
 174         f_eval_catch wlanconfig wpa_supplicant \
 175                 'wpa_supplicant -B -i "%s" -c "%s/wpa_supplicant.conf"' \
 176                 "$1" "$BSDINSTALL_TMPETC" || exit 1
 177
 178         # See if we succeeded
 179         f_eval_catch wlanconfig wpa_cli "wpa_cli ping" || exit 1
 180 fi
 181
 182 #
 183 # There is no way to check country/regdomain without (possible)
 184 # interface state modification
 185 #
 186 if [ "$BSDINSTALL_CONFIGCURRENT" ]; then
 187         # Get current country/regdomain for selected interface
 188         WLAN_IFACE=$( wpa_cli ifname | tail -n 1 )
 189         INPUT=$( ifconfig "$WLAN_IFACE" list regdomain | head -n 1 )
 190         DEF_REGDOMAIN=$( echo "$INPUT" | cut -w -f 2 )
 191         DEF_COUNTRY=$( echo "$INPUT" | cut -w -f 4 )
 192         [ "$DEF_REGDOMAIN" = 0 ] && DEF_REGDOMAIN="<not selected>"
 193         [ "$DEF_COUNTRY" = 0 ] && DEF_COUNTRY="<not selected>"
 194         f_dialog_title "Regdomain/country"
 195         if f_yesno "Change regdomain/country ($DEF_REGDOMAIN/$DEF_COUNTRY)?"
 196         then
 197                 while ! dialog_country_select "$DEF_REGDOMAIN" "$DEF_COUNTRY"
 198                 do :; done
 199         fi
 200 fi
 201
 202 while :; do
 203         SCANSSID=0
 204         f_eval_catch -d wlanconfig wpa_cli "wpa_cli scan"
 205         f_dialog_title "Scanning"
 206         f_dialog_pause "Waiting 5 seconds to scan for wireless networks..." 5 ||
 207                 exit 1
 208
 209         f_eval_catch -dk SCAN_RESULTS wlanconfig wpa_cli "wpa_cli scan_results"
 210         NETWORKS=$( echo "$SCAN_RESULTS" | awk -F '\t' '
 211                 /..:..:..:..:..:../ && $5 { printf "\"%s\"\t\"%s\"\n", $5, $4 }
 212         ' | sort | uniq )
 213
 214         if [ ! "$NETWORKS" ]; then
 215                 f_dialog_title "$msg_error"
 216                 f_yesno "No wireless networks were found. Rescan?" && continue
 217                 exit 1
 218         fi
 219
 220         f_dialog_title "Network Selection"
 221         prompt="Select a wireless network to connect to."
 222         f_dialog_menu_size height width rows "$DIALOG_TITLE" \
 223                 "$DIALOG_BACKTITLE" "$prompt" "" $menu_list
 224         NETWORK=$( eval $DIALOG \
 225                 --title \"\$DIALOG_TITLE\"         \
 226                 --backtitle \"\$DIALOG_BACKTITLE\" \
 227                 --extra-button                     \
 228                 --extra-label \"Rescan\"           \
 229                 --menu \"\$prompt\"                \
 230                 $height $width $rows               \
 231                 $NETWORKS                          \
 232                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 233         )
 234         retval=$?
 235         f_dialog_data_sanitize NETWORK
 236         case $retval in
 237         $DIALOG_OK) break ;;
 238         $DIALOG_CANCEL)
 239                 # Ask if the user wants to select network manually
 240                 f_dialog_title "Network Selection"
 241                 f_yesno "Do you want to select the network manually?" || exit 1
 242                 f_dialog_input NETWORK "Enter SSID" || exit 1
 243                 prompt="Select encryption type"
 244                 menu_list="
 245                         '1 WPA/WPA2 PSK' ''
 246                         '2 WPA/WPA2 EAP' ''
 247                         '3 WEP' ''
 248                         '0 None' ''
 249                 " # END-QUOTE
 250                 eval f_dialog_menu_size height width rows \"\$DIALOG_TITLE\" \
 251                         \"\$DIALOG_BACKTITLE\" \"\$prompt\" \"\" $menu_list
 252                 ENCRYPTION=$( eval $DIALOG \
 253                         --title \"\$DIALOG_TITLE\"         \
 254                         --backtitle \"\$DIALOG_BACKTITLE\" \
 255                         --menu \"\$prompt\"                \
 256                         $height $width $rows               \
 257                         $menu_list                         \
 258                         2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 259                 ) || exit 1
 260                 SCANSSID=1
 261                 break
 262                 ;;
 263         $DIALOG_EXTRA) # Rescan
 264                 ;;
 265         esac
 266 done
 267
 268 [ "$ENCRYPTION" ] || ENCRYPTION=$( echo "$NETWORKS" |
 269         awk -F '\t' "/^\"$NETWORK\"\t/ { print \$2 }" )
 270
 271 if echo "$ENCRYPTION" | grep -q PSK; then
 272         PASS=$( $DIALOG \
 273                 --title "WPA Setup"              \
 274                 --backtitle "$DIALOG_BACKTITLE"  \
 275                 --insecure                       \
 276                 --mixedform ""                   \
 277                 0 0 0                            \
 278                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
 279                 "Password" 2 0 "" 2 12 15 63 1   \
 280                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 281         ) || exec "$0" "$@"
 282         awk 'sub(/^\t/,"")||1' \
 283                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<EOF
 284 network={
 285         ssid="$NETWORK"
 286         scan_ssid=$SCANSSID
 287         psk="$PASS"
 288         priority=5
 289 }
 290 EOF
 291 elif echo "$ENCRYPTION" | grep -q EAP; then
 292         USERPASS=$( $DIALOG \
 293                 --title "WPA-Enterprise Setup"   \
 294                 --backtitle "$DIALOG_BACKTITLE"  \
 295                 --insecure                       \
 296                 --mixedform ""                   \
 297                 0 0 0                            \
 298                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
 299                 "Username" 2 0 "" 2 12 25 63 0   \
 300                 "Password" 3 0 "" 3 12 25 63 1   \
 301                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 302         ) || exec "$0" "$@"
 303         awk 'sub(/^\t/,"")||1' \
 304                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<EOF
 305 network={
 306         ssid="$NETWORK"
 307         scan_ssid=$SCANSSID
 308         key_mgmt=WPA-EAP$(
 309         echo "$USERPASS" | awk '
 310                 NR == 1 { printf "\n\t\tidentity=\"%s\"", $1 }
 311                 NR == 2 { printf "\n\t\tpassword=\"%s\"", $1 }
 312         ' )
 313         priority=5
 314 }
 315 EOF
 316 elif echo "$ENCRYPTION" | grep -q WEP; then
 317         WEPKEY=$( $DIALOG \
 318                 --title "WEP Setup"              \
 319                 --backtitle "$DIALOG_BACKTITLE"  \
 320                 --insecure                       \
 321                 --mixedform ""                   \
 322                 0 0 0                            \
 323                 "SSID" 1 0 "$NETWORK" 1 12 0 0 2 \
 324                 "WEP Key 0" 2 0 "" 2 12 15 0 1   \
 325                 2>&1 >&$DIALOG_TERMINAL_PASSTHRU_FD
 326         ) || exec "$0" "$@"
 327         awk 'sub(/^\t/,"")||1' \
 328                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<EOF
 329 network={
 330         ssid="$NETWORK"
 331         scan_ssid=$SCANSSID
 332         key_mgmt=NONE
 333         wep_key0="$WEPKEY"
 334         wep_tx_keyidx=0
 335         priority=5
 336 }
 337 EOF
 338 else # Open
 339         awk 'sub(/^\t/,"")||1' \
 340                 >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" <<EOF
 341 network={
 342         ssid="$NETWORK"
 343         scan_ssid=$SCANSSID
 344         key_mgmt=NONE
 345         priority=5
 346 }
 347 EOF
 348 fi
 349
 350 # Connect to any open networks policy
 351 cat >> "$BSDINSTALL_TMPETC/wpa_supplicant.conf" << EOF
 352 network={
 353         priority=0
 354         key_mgmt=NONE
 355 }
 356 EOF
 357
 358 # Bring up new network
 359 [ "$BSDINSTALL_CONFIGCURRENT" ] &&
 360         f_eval_catch -d wlanconfig wpa_cli "wpa_cli reconfigure"
 361
 362 exit $SUCCESS
 363
 364 ################################################################################
 365 # END
 366 ################################################################################