xref: /freebsd/usr.sbin/bsdinstall/scripts/netconfig_ipv6 (revision d0b2dbfa0ecf2bbc9709efc5e20baf8e4b44bbbf)
1#!/bin/sh
2#-
3# Copyright (c) 2011 Nathan Whitehorn
4# Copyright (c) 2011 The FreeBSD Foundation
5# Copyright (c) 2013-2015 Devin Teske
6# All rights reserved.
7#
8# Portions of this software were developed by Bjoern Zeeb
9# under sponsorship from the FreeBSD Foundation.
10#
11# Redistribution and use in source and binary forms, with or without
12# modification, are permitted provided that the following conditions
13# are met:
14# 1. Redistributions of source code must retain the above copyright
15#    notice, this list of conditions and the following disclaimer.
16# 2. Redistributions in binary form must reproduce the above copyright
17#    notice, this list of conditions and the following disclaimer in the
18#    documentation and/or other materials provided with the distribution.
19#
20# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23# ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30# SUCH DAMAGE.
31#
32#
33############################################################ INCLUDES
34
35BSDCFG_SHARE="/usr/share/bsdconfig"
36. $BSDCFG_SHARE/common.subr || exit 1
37f_dprintf "%s: loading includes..." "$0"
38f_include $BSDCFG_SHARE/dialog.subr
39
40############################################################ MAIN
41
42: ${BSDDIALOG_OK=0}
43: ${BSDDIALOG_CANCEL=1}
44
45#
46# TODO:
47# - Add DHCPv6 support once FreeBSD ships with it.
48#
49
50INTERFACE=$1
51case "${INTERFACE}" in
52"")	bsddialog --backtitle "$OSNAME Installer" --title 'Network Configuration' \
53	    --msgbox 'No interface specified for IPv6 configuration.' 0 0
54	exit 1
55	;;
56esac
57
58AGAIN=""
59while : ; do
60	MSG="Would you like to try stateless address autoconfiguration (SLAAC)${AGAIN}?"
61	bsddialog --backtitle "$OSNAME Installer" --title 'Network Configuration' \
62	    --yesno "${MSG}" 0 0
63	if [ $? -eq $BSDDIALOG_OK ]; then
64		if [ ! -z $BSDINSTALL_CONFIGCURRENT ]; then
65			bsddialog --backtitle "$OSNAME Installer" \
66			    --infobox "Sending Router Solicitation ..." 0 0
67			ifconfig ${INTERFACE} inet6 -ifdisabled accept_rtadv up
68			err=$( rtsol -F $INTERFACE 2>&1 )
69			if [ $? -ne 0 ]; then
70				f_dprintf "%s" "$err"
71				bsddialog --backtitle "$OSNAME Installer" --msgbox "SLAAC failed." 0 0
72				AGAIN=" again"
73				continue
74			fi
75		fi
76		echo ifconfig_${INTERFACE}_ipv6=\"inet6 accept_rtadv\" >> $BSDINSTALL_TMPETC/._rc.conf.net
77		exit 0
78	else
79		break
80	fi
81done
82
83ROUTER6=`netstat -Wrn -f inet6 | awk '/default/ {printf("%s\n", $2);}'`
84ADDRS=`ifconfig ${INTERFACE} inet6 | \
85awk  -v dfr="${ROUTER6}" '
86BEGIN {
87	n=0;
88}
89{
90	if (/inet6/) {
91		if (match($2, "^fe80:")) { next; };
92		# For the moment ignore all but the first address; it might confuse the user.
93		if (n > 0) { next; };
94		n++;
95		printf "\"IPv6 Address\" %d 1 \"%s/%s\" %d 16 50 50 0 ", n, $2, $4, n;
96	}
97}
98END {
99	if (n == 0) {
100		n++;
101		printf "\"IPv6 Address\" %d 1 \"\" %d 16 50 50 0 ", n, n;
102	}
103	n++;
104	# Nasty trick adding a (hidden, same y) read-only field as a marker
105	# to separate interface address(es) from the default router.
106	printf "\"Default Router\" %d 1 \"%s\" %d 1 14 14 2 ", n, "DefaultRouter", n;
107	printf "\"Default Router\" %d 1 \"%s\" %d 16 50 50 0 ", n, dfr, n;
108}'`
109
110exec 3>&1
111IF_CONFIG=$(echo ${ADDRS} | xargs -o bsddialog --backtitle "$OSNAME Installer" \
112	--title 'Network Configuration' \
113	--mixedform 'Static IPv6 Network Interface Configuration' 0 0 0 \
1142>&1 1>&3)
115if [ $? -eq $BSDDIALOG_CANCEL ]; then exit 1; fi
116exec 3>&-
117
118echo ${IF_CONFIG} | tr ' ' '\n' | \
119awk -v iface="${INTERFACE}" '
120BEGIN {
121	dfr=0;
122	count=0;
123}
124{
125	if (/^[[:space:]]+$/) {
126		next;
127	}
128	if (/DefaultRouter/) {
129		dfr=1;
130		next;
131	}
132	if (dfr == 1) {
133		printf("ipv6_defaultrouter=\"%s\"\n", $1);
134		next;
135	}
136	if (count > 0) {
137		# Ignore all but the first IP address for now.
138		next;
139	}
140	count++;
141	if (!match($1, "/")) {
142		sub("$", "/64", $1);
143	}
144	printf("ifconfig_%s_ipv6=\"inet6 %s\"\n", iface, $1);
145}' >> $BSDINSTALL_TMPETC/._rc.conf.net
146retval=$?
147
148if [ "$BSDINSTALL_CONFIGCURRENT" ]; then
149	. $BSDINSTALL_TMPETC/._rc.conf.net
150	ifconfig ${INTERFACE} `eval echo \\\$ifconfig_${INTERFACE}_ipv6`
151	if [ "$ipv6_defaultrouter" ]; then
152		route delete -inet6 default
153		route add -inet6 default ${ipv6_defaultrouter}
154		retval=$?
155	fi
156fi
157
158exit $retval
159
160################################################################################
161# END
162################################################################################
163