xref: /freebsd/usr.sbin/bsdinstall/scripts/netconfig_ipv6 (revision bb15ca603fa442c72dde3f3cb8b46db6970e3950)
1#!/bin/sh
2#-
3# Copyright (c) 2011 Nathan Whitehorn
4# All rights reserved.
5# Copyright (c) 2011 The FreeBSD Foundation
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# $FreeBSD$
33
34#
35# TODO:
36# - Add DHCPv6 support once FreeBSD ships with it.
37#
38
39: ${DIALOG_OK=0}
40: ${DIALOG_CANCEL=1}
41: ${DIALOG_HELP=2}
42: ${DIALOG_EXTRA=3}
43: ${DIALOG_ITEM_HELP=4}
44: ${DIALOG_ESC=255}
45
46INTERFACE=$1
47case "${INTERFACE}" in
48"")	dialog --backtitle 'FreeBSD Installer' --title 'Network Configuration' \
49	    --msgbox 'No interface specified for IPv6 configuration.' 0 0
50	exit 1
51	;;
52esac
53
54AGAIN=""
55while : ; do
56	MSG="Would you like to try stateless address autoconfiguration (SLAAC)${AGAIN}?"
57	dialog --backtitle 'FreeBSD Installer' --title 'Network Configuration' \
58	    --yesno "${MSG}" 0 0
59	if [ $? -eq $DIALOG_OK ]; then
60		if [ ! -z $BSDINSTALL_CONFIGCURRENT ]; then
61			dialog --backtitle 'FreeBSD Installer' \
62			    --infobox "Sending Router Solicitation ..." 0 0
63			ifconfig ${INTERFACE} inet6 -ifdisabled accept_rtadv up
64			rtsol -F $INTERFACE 2>> $BSDINSTALL_LOG
65			if [ $? -ne 0 ]; then
66				dialog --backtitle 'FreeBSD Installer' --msgbox "SLAAC failed." 0 0
67				AGAIN=" again"
68				continue
69			fi
70		fi
71		echo ifconfig_${INTERFACE}_ipv6=\"inet6 accept_rtadv\" >> $BSDINSTALL_TMPETC/._rc.conf.net
72		exit 0
73	else
74		break
75	fi
76done
77
78ROUTER6=`netstat -Wrn -f inet6 | awk '/default/ {printf("%s\n", $2);}'`
79ADDRS=`ifconfig ${INTERFACE} inet6 | \
80awk  -v dfr="${ROUTER6}" '
81BEGIN {
82	n=0;
83}
84{
85	if (/inet6/) {
86		if (match($2, "^fe80:")) { next; };
87		# For the moment ignore all but the first address; it might confuse the user.
88		if (n > 0) { next; };
89		n++;
90		printf "\"IPv6 Address\" %d 0 \"%s/%s\" %d 16 50 0 0 ", n, $2, $4, n;
91	}
92}
93END {
94	if (n == 0) {
95		n++;
96		printf "\"IPv6 Address\" %d 0 \"\" %d 16 50 0 0 ", n, n;
97	}
98	n++;
99	# Nasty trick adding a (hidden, same y) read-only field as a marker
100	# to separate interface address(es) from the default router.
101	printf "\"Default Router\" %d 0 \"%s\" %d 16 50 0 2 ", n, "DefaultRouter", n;
102	printf "\"Default Router\" %d 0 \"%s\" %d 16 50 0 0 ", n, dfr, n;
103}'`
104
105exec 3>&1
106IF_CONFIG=$(echo ${ADDRS} | xargs dialog --backtitle 'FreeBSD Installer' \
107	--title 'Network Configuration' \
108	--mixedform 'Static IPv6 Network Interface Configuration' 0 0 0 \
1092>&1 1>&3)
110if [ $? -eq $DIALOG_CANCEL ]; then exit 1; fi
111exec 3>&-
112
113echo ${IF_CONFIG} | tr ' ' '\n' | \
114awk -v iface="${INTERFACE}" '
115BEGIN {
116	dfr=0;
117	count=0;
118}
119{
120	if (/^[[:space:]]+$/) {
121		next;
122	}
123	if (/DefaultRouter/) {
124		dfr=1;
125		next;
126	}
127	if (dfr == 1) {
128		printf("ipv6_defaultrouter=\"%s\"\n", $1);
129		next;
130	}
131	if (count > 0) {
132		# Ignore all but the first IP address for now.
133		next;
134	}
135	count++;
136	if (!match($1, "/")) {
137		sub("$", "/64", $1);
138	}
139	printf("ifconfig_%s_ipv6=\"inet6 %s\"\n", iface, $1);
140}' >> $BSDINSTALL_TMPETC/._rc.conf.net
141
142if [ ! -z $BSDINSTALL_CONFIGCURRENT ]; then
143	. $BSDINSTALL_TMPETC/._rc.conf.net
144	ifconfig ${INTERFACE} `eval echo \\\$ifconfig_${INTERFACE}_ipv6`
145	if [ -n "${ipv6_defaultrouter}" ]; then
146		route delete -inet6 default
147		route add -inet6 default ${ipv6_defaultrouter}
148	fi
149fi
150
151