2 ###############################################################################
4 # IPFire.org - A linux based firewall #
5 # Copyright (C) 2010 Michael Tremer & Christian Schmidt #
7 # This program is free software: you can redistribute it and/or modify #
8 # it under the terms of the GNU General Public License as published by #
9 # the Free Software Foundation, either version 3 of the License, or #
10 # (at your option) any later version. #
12 # This program is distributed in the hope that it will be useful, #
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of #
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
15 # GNU General Public License for more details. #
17 # You should have received a copy of the GNU General Public License #
18 # along with this program. If not, see <http://www.gnu.org/licenses/>. #
20 ###############################################################################
22 IP_SUPPORTED_PROTOCOLS
="${IP_SUPPORTED_PROTOCOLS} ipv6"
24 function ipv6_device_autoconf_enable
() {
26 assert device_exists
"${device}"
28 sysctl_set
"net.ipv6.conf.${device}.accept_ra" 1
29 sysctl_set
"net.ipv6.conf.${device}.autoconf" 1
32 function ipv6_device_autoconf_disable
() {
34 assert device_exists
"${device}"
36 sysctl_set
"net.ipv6.conf.${device}.accept_ra" 0
37 sysctl_set
"net.ipv6.conf.${device}.autoconf" 0
40 # Enable IPv6 RFC3041 privacy extensions if desired
41 function ipv6_device_privacy_extensions_enable
() {
43 assert device_exists
"${device}"
45 sysctl_set
"net.ipv6.conf.${device}.use_tempaddr" 2
48 function ipv6_device_privacy_extensions_disable
() {
50 assert device_exists
"${device}"
52 sysctl_set
"net.ipv6.conf.${device}.use_tempaddr" 0
55 function ipv6_is_valid
() {
56 ipcalc
--ipv6 -c $@
>/dev
/null
2>&1
68 function ipv6_prefix_is_valid
() {
72 [ ${prefix} -le 0 ] && return ${EXIT_FALSE}
73 [ ${prefix} -gt 128 ] && return ${EXIT_FALSE}
78 function ipv6_implode
() {
83 eval $
(ipcalc
-6 -i ${address} 2>/dev
/null
)
84 assert isset ADDRESS6_IMPL
86 print
"${ADDRESS6_IMPL}"
89 function ipv6_explode
() {
93 # Nothing to do if the length of the address is 39.
94 if [ ${#address} -eq 39 ]; then
100 eval $
(ipcalc
-6 -e ${address} 2>/dev
/null
)
101 assert isset ADDRESS6_EXPL
103 print
"${ADDRESS6_EXPL}"
106 function ipv6_addr_eq
() {
114 for addr
in addr1 addr2
; do
115 printf -v ${addr} "%s" $
(ipv6_explode
${!addr})
118 [[ "${addr1}" = "${addr2}" ]] \
119 && return ${EXIT_TRUE} ||
return ${EXIT_FALSE}
122 function ipv6_addr_gt
() {
130 for addr
in addr1 addr2
; do
131 printf -v ${addr} "%s" $
(ipv6_explode
${!addr})
134 local i addr1_oct addr2_oct
135 for i
in 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30; do
136 addr1_oct
="0x${addr1:${i}:2}"
137 addr2_oct
="0x${addr2:${i}:2}"
139 [[ ${addr1_oct} -gt ${addr2_oct} ]] && return ${EXIT_TRUE}
145 function ipv6_hash
() {
151 address
=$
(ipv6_explode
${address})
153 echo "${address//:/}"
156 function ipv6_get_network
() {
160 # Check if a prefix (e.g. /64) is provided.
161 local prefix
=$
(ip_get_prefix
${addr})
162 assert ipv6_prefix_is_valid
${prefix}
165 eval $
(ipcalc
--ipv6 -p ${addr})
168 print
"${PREFIX6}/${prefix}"