netconfig_ipv6 revision 287690 
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# $FreeBSD: head/usr.sbin/bsdinstall/scripts/netconfig_ipv6 287690 2015-09-11 21:08:46Z dteske $
33#
34############################################################ INCLUDES
35
36BSDCFG_SHARE="/usr/share/bsdconfig"
37. $BSDCFG_SHARE/common.subr || exit 1
38f_dprintf "%s: loading includes..." "$0"
39f_include $BSDCFG_SHARE/dialog.subr
40
41############################################################ MAIN
42
43#
44# TODO: 
45# - Add DHCPv6 support once FreeBSD ships with it.
46# 
47
48INTERFACE=$1
49case "${INTERFACE}" in
50"")	dialog --backtitle 'FreeBSD Installer' --title 'Network Configuration' \
51	    --msgbox 'No interface specified for IPv6 configuration.' 0 0
52	exit 1
53	;;
54esac
55
56AGAIN=""
57while : ; do
58	MSG="Would you like to try stateless address autoconfiguration (SLAAC)${AGAIN}?"
59	dialog --backtitle 'FreeBSD Installer' --title 'Network Configuration' \
60	    --yesno "${MSG}" 0 0
61	if [ $? -eq $DIALOG_OK ]; then
62		if [ ! -z $BSDINSTALL_CONFIGCURRENT ]; then
63			dialog --backtitle 'FreeBSD Installer' \
64			    --infobox "Sending Router Solicitation ..." 0 0
65			ifconfig ${INTERFACE} inet6 -ifdisabled accept_rtadv up
66			err=$( rtsol -F $INTERFACE 2>&1 )
67			if [ $? -ne 0 ]; then
68				f_dprintf "%s" "$err"
69				dialog --backtitle 'FreeBSD Installer' --msgbox "SLAAC failed." 0 0
70				AGAIN=" again"
71				continue
72			fi
73		fi
74		echo ifconfig_${INTERFACE}_ipv6=\"inet6 accept_rtadv\" >> $BSDINSTALL_TMPETC/._rc.conf.net
75		exit 0
76	else
77		break
78	fi
79done
80
81ROUTER6=`netstat -Wrn -f inet6 | awk '/default/ {printf("%s\n", $2);}'`
82ADDRS=`ifconfig ${INTERFACE} inet6 | \
83awk  -v dfr="${ROUTER6}" '
84BEGIN {
85	n=0;
86}
87{
88	if (/inet6/) {
89		if (match($2, "^fe80:")) { next; };
90		# For the moment ignore all but the first address; it might confuse the user.
91		if (n > 0) { next; };
92		n++;
93		printf "\"IPv6 Address\" %d 0 \"%s/%s\" %d 16 50 0 0 ", n, $2, $4, n;
94	}
95}
96END {
97	if (n == 0) {
98		n++;
99		printf "\"IPv6 Address\" %d 0 \"\" %d 16 50 0 0 ", n, n;
100	}
101	n++;
102	# Nasty trick adding a (hidden, same y) read-only field as a marker
103	# to separate interface address(es) from the default router.
104	printf "\"Default Router\" %d 0 \"%s\" %d 16 50 0 2 ", n, "DefaultRouter", n;
105	printf "\"Default Router\" %d 0 \"%s\" %d 16 50 0 0 ", n, dfr, n;
106}'`
107
108exec 3>&1
109IF_CONFIG=$(echo ${ADDRS} | xargs dialog --backtitle 'FreeBSD Installer' \
110	--title 'Network Configuration' \
111	--mixedform 'Static IPv6 Network Interface Configuration' 0 0 0 \
1122>&1 1>&3)
113if [ $? -eq $DIALOG_CANCEL ]; then exit 1; fi
114exec 3>&-
115
116echo ${IF_CONFIG} | tr ' ' '\n' | \
117awk -v iface="${INTERFACE}" '
118BEGIN {
119	dfr=0;
120	count=0;
121}
122{
123	if (/^[[:space:]]+$/) {
124		next;
125	}
126	if (/DefaultRouter/) {
127		dfr=1;
128		next;
129	}
130	if (dfr == 1) {
131		printf("ipv6_defaultrouter=\"%s\"\n", $1);
132		next;
133	}
134	if (count > 0) {
135		# Ignore all but the first IP address for now.
136		next;
137	}
138	count++;
139	if (!match($1, "/")) {
140		sub("$", "/64", $1);
141	}
142	printf("ifconfig_%s_ipv6=\"inet6 %s\"\n", iface, $1);
143}' >> $BSDINSTALL_TMPETC/._rc.conf.net
144retval=$?
145
146if [ "$BSDINSTALL_CONFIGCURRENT" ]; then
147	. $BSDINSTALL_TMPETC/._rc.conf.net
148	ifconfig ${INTERFACE} `eval echo \\\$ifconfig_${INTERFACE}_ipv6`
149	if [ "$ipv6_defaultrouter" ]; then
150		route delete -inet6 default
151		route add -inet6 default ${ipv6_defaultrouter}
152		retval=$?
153	fi
154fi
155
156exit $retval
157
158################################################################################
159# END
160################################################################################
161