freebsd-dev/usr.sbin/bsdinstall/scripts/netconfig_ipv6
2017-07-18 23:35:19 +00:00

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#!/bin/sh
#-
# Copyright (c) 2011 Nathan Whitehorn
# Copyright (c) 2011 The FreeBSD Foundation
# Copyright (c) 2013-2015 Devin Teske
# All rights reserved.
#
# Portions of this software were developed by Bjoern Zeeb
# under sponsorship from the FreeBSD Foundation.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
#
############################################################ INCLUDES
BSDCFG_SHARE="/usr/share/bsdconfig"
. $BSDCFG_SHARE/common.subr || exit 1
f_dprintf "%s: loading includes..." "$0"
f_include $BSDCFG_SHARE/dialog.subr
############################################################ MAIN
#
# TODO:
# - Add DHCPv6 support once FreeBSD ships with it.
#
INTERFACE=$1
case "${INTERFACE}" in
"") dialog --backtitle 'FreeBSD Installer' --title 'Network Configuration' \
--msgbox 'No interface specified for IPv6 configuration.' 0 0
exit 1
;;
esac
AGAIN=""
while : ; do
MSG="Would you like to try stateless address autoconfiguration (SLAAC)${AGAIN}?"
dialog --backtitle 'FreeBSD Installer' --title 'Network Configuration' \
--yesno "${MSG}" 0 0
if [ $? -eq $DIALOG_OK ]; then
if [ ! -z $BSDINSTALL_CONFIGCURRENT ]; then
dialog --backtitle 'FreeBSD Installer' \
--infobox "Sending Router Solicitation ..." 0 0
ifconfig ${INTERFACE} inet6 -ifdisabled accept_rtadv up
err=$( rtsol -F $INTERFACE 2>&1 )
if [ $? -ne 0 ]; then
f_dprintf "%s" "$err"
dialog --backtitle 'FreeBSD Installer' --msgbox "SLAAC failed." 0 0
AGAIN=" again"
continue
fi
fi
echo ifconfig_${INTERFACE}_ipv6=\"inet6 accept_rtadv\" >> $BSDINSTALL_TMPETC/._rc.conf.net
exit 0
else
break
fi
done
ROUTER6=`netstat -Wrn -f inet6 | awk '/default/ {printf("%s\n", $2);}'`
ADDRS=`ifconfig ${INTERFACE} inet6 | \
awk -v dfr="${ROUTER6}" '
BEGIN {
n=0;
}
{
if (/inet6/) {
if (match($2, "^fe80:")) { next; };
# For the moment ignore all but the first address; it might confuse the user.
if (n > 0) { next; };
n++;
printf "\"IPv6 Address\" %d 0 \"%s/%s\" %d 16 50 0 0 ", n, $2, $4, n;
}
}
END {
if (n == 0) {
n++;
printf "\"IPv6 Address\" %d 0 \"\" %d 16 50 0 0 ", n, n;
}
n++;
# Nasty trick adding a (hidden, same y) read-only field as a marker
# to separate interface address(es) from the default router.
printf "\"Default Router\" %d 0 \"%s\" %d 16 50 0 2 ", n, "DefaultRouter", n;
printf "\"Default Router\" %d 0 \"%s\" %d 16 50 0 0 ", n, dfr, n;
}'`
exec 3>&1
IF_CONFIG=$(echo ${ADDRS} | xargs dialog --backtitle 'FreeBSD Installer' \
--title 'Network Configuration' \
--mixedform 'Static IPv6 Network Interface Configuration' 0 0 0 \
2>&1 1>&3)
if [ $? -eq $DIALOG_CANCEL ]; then exit 1; fi
exec 3>&-
echo ${IF_CONFIG} | tr ' ' '\n' | \
awk -v iface="${INTERFACE}" '
BEGIN {
dfr=0;
count=0;
}
{
if (/^[[:space:]]+$/) {
next;
}
if (/DefaultRouter/) {
dfr=1;
next;
}
if (dfr == 1) {
printf("ipv6_defaultrouter=\"%s\"\n", $1);
next;
}
if (count > 0) {
# Ignore all but the first IP address for now.
next;
}
count++;
if (!match($1, "/")) {
sub("$", "/64", $1);
}
printf("ifconfig_%s_ipv6=\"inet6 %s\"\n", iface, $1);
}' >> $BSDINSTALL_TMPETC/._rc.conf.net
retval=$?
if [ "$BSDINSTALL_CONFIGCURRENT" ]; then
. $BSDINSTALL_TMPETC/._rc.conf.net
ifconfig ${INTERFACE} `eval echo \\\$ifconfig_${INTERFACE}_ipv6`
if [ "$ipv6_defaultrouter" ]; then
route delete -inet6 default
route add -inet6 default ${ipv6_defaultrouter}
retval=$?
fi
fi
exit $retval
################################################################################
# END
################################################################################