1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
|
#!/bin/sh
# map.sh - IPv4-in-IPv6 tunnel backend
#
# Author: Steven Barth <cyrus@openwrt.org>
# Copyright (c) 2014 cisco Systems, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2
# as published by the Free Software Foundation
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
[ -n "$INCLUDE_ONLY" ] || {
. /lib/functions.sh
. /lib/functions/network.sh
. ../netifd-proto.sh
init_proto "$@"
}
proto_map_setup() {
local cfg="$1"
local iface="$2"
local link="map-$cfg"
# uncomment for legacy MAP0 mode
#export LEGACY=1
local type mtu ttl tunlink zone
local rule ipaddr ip4prefixlen ip6prefix ip6prefixlen peeraddr ealen psidlen psid offset
json_get_vars type mtu ttl tunlink zone
json_get_vars rule ipaddr ip4prefixlen ip6prefix ip6prefixlen peeraddr ealen psidlen psid offset
[ -z "$zone" ] && zone="wan"
[ -z "$type" ] && type="map-e"
[ -z "$ip4prefixlen" ] && ip4prefixlen=32
( proto_add_host_dependency "$cfg" "::" "$tunlink" )
# fixme: handle RA/DHCPv6 address race for LW
[ "$type" = lw4o6 ] && sleep 5
if [ -z "$rule" ]; then
rule="type=$type,ipv6prefix=$ip6prefix,prefix6len=$ip6prefixlen,ipv4prefix=$ipaddr,prefix4len=$ip4prefixlen"
[ -n "$psid" ] && rule="$rule,psid=$psid"
[ -n "$psidlen" ] && rule="$rule,psidlen=$psidlen"
[ -n "$offset" ] && rule="$rule,offset=$offset"
[ -n "$ealen" ] && rule="$rule,ealen=$ealen"
if [ "$type" = "map-t" ]; then
rule="$rule,dmr=$peeraddr"
else
rule="$rule,br=$peeraddr"
fi
fi
echo "rule=$rule" > /tmp/map-$cfg.rules
RULE_DATA=$(mapcalc ${tunlink:-\*} $rule)
if [ "$?" != 0 ]; then
proto_notify_error "$cfg" "INVALID_MAP_RULE"
proto_block_restart "$cfg"
return
fi
echo "$RULE_DATA" >> /tmp/map-$cfg.rules
eval $RULE_DATA
if [ -z "$RULE_BMR" ]; then
proto_notify_error "$cfg" "NO_MATCHING_PD"
proto_block_restart "$cfg"
return
fi
k=$RULE_BMR
if [ "$type" = "lw4o6" -o "$type" = "map-e" ]; then
proto_init_update "$link" 1
proto_add_ipv4_address $(eval "echo \$RULE_${k}_IPV4ADDR") "" "" ""
proto_add_tunnel
json_add_string mode ipip6
json_add_int mtu "${mtu:-1280}"
json_add_int ttl "${ttl:-64}"
json_add_string local $(eval "echo \$RULE_${k}_IPV6ADDR")
json_add_string remote $(eval "echo \$RULE_${k}_BR")
json_add_string link $(eval "echo \$RULE_${k}_PD6IFACE")
if [ "$type" = "map-e" ]; then
json_add_array "fmrs"
for i in $(seq $RULE_COUNT); do
[ "$(eval "echo \$RULE_${i}_FMR")" != 1 ] && continue
fmr="$(eval "echo \$RULE_${i}_IPV6PREFIX")/$(eval "echo \$RULE_${i}_PREFIX6LEN")"
fmr="$fmr,$(eval "echo \$RULE_${i}_IPV4PREFIX")/$(eval "echo \$RULE_${i}_PREFIX4LEN")"
fmr="$fmr,$(eval "echo \$RULE_${i}_EALEN"),$(eval "echo \$RULE_${i}_OFFSET")"
json_add_string "" "$fmr"
done
json_close_array
fi
proto_close_tunnel
elif [ "$type" = "map-t" -a -f "/proc/net/nat46/control" ]; then
proto_init_update "$link" 1
local style="MAP"
[ "$LEGACY" = 1 ] && style="MAP0"
echo add $link > /proc/net/nat46/control
local cfgstr="local.style $style local.v4 $(eval "echo \$RULE_${k}_IPV4PREFIX")/$(eval "echo \$RULE_${k}_PREFIX4LEN")"
cfgstr="$cfgstr local.v6 $(eval "echo \$RULE_${k}_IPV6PREFIX")/$(eval "echo \$RULE_${k}_PREFIX6LEN")"
cfgstr="$cfgstr local.ea-len $(eval "echo \$RULE_${k}_EALEN") local.psid-offset $(eval "echo \$RULE_${k}_OFFSET")"
cfgstr="$cfgstr remote.v4 0.0.0.0/0 remote.v6 $(eval "echo \$RULE_${k}_DMR") remote.style RFC6052 remote.ea-len 0 remote.psid-offset 0"
echo config $link $cfgstr > /proc/net/nat46/control
for i in $(seq $RULE_COUNT); do
[ "$(eval "echo \$RULE_${i}_FMR")" != 1 ] && continue
local cfgstr="remote.style $style remote.v4 $(eval "echo \$RULE_${i}_IPV4PREFIX")/$(eval "echo \$RULE_${i}_PREFIX4LEN")"
cfgstr="$cfgstr remote.v6 $(eval "echo \$RULE_${i}_IPV6PREFIX")/$(eval "echo \$RULE_${i}_PREFIX6LEN")"
cfgstr="$cfgstr remote.ea-len $(eval "echo \$RULE_${i}_EALEN") remote.psid-offset $(eval "echo \$RULE_${i}_OFFSET")"
echo insert $link $cfgstr > /proc/net/nat46/control
done
else
proto_notify_error "$cfg" "UNSUPPORTED_TYPE"
proto_block_restart "$cfg"
fi
proto_add_ipv4_route "0.0.0.0" 0
proto_add_data
[ "$zone" != "-" ] && json_add_string zone "$zone"
json_add_array firewall
if [ -z "$(eval "echo \$RULE_${k}_PORTSETS")" ]; then
json_add_object ""
json_add_string type nat
json_add_string target SNAT
json_add_string family inet
json_add_string snat_ip $(eval "echo \$RULE_${k}_IPV4ADDR")
json_close_object
else
for portset in $(eval "echo \$RULE_${k}_PORTSETS"); do
for proto in icmp tcp udp; do
json_add_object ""
json_add_string type nat
json_add_string target SNAT
json_add_string family inet
json_add_string proto "$proto"
json_add_boolean connlimit_ports 1
json_add_string snat_ip $(eval "echo \$RULE_${k}_IPV4ADDR")
json_add_string snat_port "$portset"
json_close_object
done
done
fi
if [ "$type" = "map-t" ]; then
json_add_object ""
json_add_string type rule
json_add_string family inet6
json_add_string proto all
json_add_string direction in
json_add_string dest "$zone"
json_add_string src "$zone"
json_add_string src_ip $(eval "echo \$RULE_${k}_IPV6ADDR")
json_add_string target ACCEPT
json_close_object
json_add_object ""
json_add_string type rule
json_add_string family inet6
json_add_string proto all
json_add_string direction out
json_add_string dest "$zone"
json_add_string src "$zone"
json_add_string dest_ip $(eval "echo \$RULE_${k}_IPV6ADDR")
json_add_string target ACCEPT
json_close_object
proto_add_ipv6_route $(eval "echo \$RULE_${k}_IPV6ADDR") 128
fi
json_close_array
proto_close_data
proto_send_update "$cfg"
if [ "$type" = "lw4o6" -o "$type" = "map-e" ]; then
json_init
json_add_string name "${cfg}_"
json_add_string ifname "@$(eval "echo \$RULE_${k}_PD6IFACE")"
json_add_string proto "static"
json_add_array ip6addr
json_add_string "" "$(eval "echo \$RULE_${k}_IPV6ADDR")"
json_close_array
json_close_object
ubus call network add_dynamic "$(json_dump)"
fi
}
proto_map_teardown() {
local cfg="$1"
ifdown "${cfg}_"
rm -f /tmp/map-$cfg.rules
}
proto_map_init_config() {
no_device=1
available=1
proto_config_add_string "rule"
proto_config_add_string "ipaddr"
proto_config_add_int "ip4prefixlen"
proto_config_add_string "ip6prefix"
proto_config_add_int "ip6prefixlen"
proto_config_add_string "peeraddr"
proto_config_add_int "psidlen"
proto_config_add_int "psid"
proto_config_add_int "offset"
proto_config_add_string "tunlink"
proto_config_add_int "mtu"
proto_config_add_int "ttl"
proto_config_add_string "zone"
}
[ -n "$INCLUDE_ONLY" ] || {
add_protocol map
}
|
