1 #!/bin/sh /etc/rc.common
3 DHCP6C_REQUEST_OPTIONS='domain_name_servers domain_name ntp_servers sip_server_address sip_domain_name nis_server_address nis_domain_name nisp_server_address nisp_domain_name bcmcs_server_address bcmcs_domain_name'
6 local mac="${1:-$(ifconfig "$client_device" | sed -ne 's/[[:space:]]*$//; s/.*HWaddr //p')}"
7 local pat="[0-9A-F][0-9A-F]"
10 # exactly 6 octets -> assume type 3 (DUID-LL - RFC3315, 9.4)
11 $pat:$pat:$pat:$pat:$pat:$pat)
12 local oIFS="$IFS"; IFS=":"; set -- $mac; IFS="$oIFS"
15 if [ "$(printf \\1 | hexdump -n1 -ve '8/2 "" "%04x" ""')" = "0001" ]; then
23 printf \\x00\\x03\\x00\\x06\\x$1\\x$2\\x$3\\x$4\\x$5\\x$6
24 logger -t dhcp6c "Using MAC address DUID 00:03:00:06:$1:$2:$3:$4:$5:$6"
26 # at least 7 octets -> could be type 1 or type 2
27 $pat:$pat:$pat:$pat:$pat:$pat:*)
28 local len_id=":$(echo "$mac" | sed -e 's/[^:]//g')"
29 local len_hi=$(printf "%02x" $((${#len_id} / 0xFF)) )
30 local len_lo=$(printf "%02x" $((${#len_id} % 0xFF)) )
33 if [ "$(printf \\1 | hexdump -n1 -ve '8/2 "" "%04x" ""')" = "0001" ]; then
34 printf \\x$len_lo\\x$len_hi
38 printf \\x$len_hi\\x$len_lo
41 printf $(echo "$mac" | sed -e 's/^/\\x/; s/:/\\x/g')
42 logger -t dhcp6c "Using user provided DUID $mac"
45 logger -t dhcp6c "Unable to derive DUID from interface '$client_device' and no valid user DUID given"
50 dhcp6c_write_interface() {
57 config_get_bool enabled "$cfg" enabled 0
59 if [ $enabled -ne 0 ]; then
60 config_get sla_id "$cfg" sla_id
61 config_get sla_len "$cfg" sla_len
63 network_get_device device "$cfg" && {
64 printf '\tprefix-interface %s {\n' "$device"
65 printf '\t\tsla-id %s;\n' "$sla_id"
66 printf '\t\tsla-len %s;\n' "$sla_len"
72 dhcp6c_write_request() {
73 printf '\trequest %s;\n' $1 | sed -e s/_/-/g
76 dhcp6c_write_config() {
79 config_get_bool pd basic pd 0
80 config_get_bool na basic na 0
82 printf 'interface %s {\n' "$client_ifname"
84 if [ $pd -ne 0 ]; then
85 printf '\tsend ia-pd 0;\n'
88 if [ $na -ne 0 ]; then
89 printf '\tsend ia-na 0;\n'
93 config_get_bool rapid_commit basic rapid_commit 0
94 [ $rapid_commit -ne 0 ] && printf '\tsend rapid-commit;\n'
97 config_get script basic script
98 [ "$script" != "" ] && printf '\tscript "%s";\n' "$script"
102 for request in $DHCP6C_REQUEST_OPTIONS; do
103 config_get_bool value basic "$request" 0
104 [ $value -ne 0 ] && dhcp6c_write_request "$request"
109 if [ $pd -ne 0 ]; then
110 printf 'id-assoc pd 0 {\n'
111 config_foreach dhcp6c_write_interface interface
115 if [ $na -ne 0 ]; then
116 printf 'id-assoc na 0 {\n'
124 [ ! -e /etc/dhcp6cctlkey ] && `dd if=/dev/urandom count=1 2> /dev/null | md5sum | cut -d" " -f1 > /etc/dhcp6cctlkey`
126 [ -e /var/run/dhcp6c.pid ] && return 0
128 . /lib/functions/network.sh
133 config_get_bool enabled basic enabled 0
134 [ $enabled -eq 0 ] && return 0
137 config_get user_duid basic duid
139 logger -t dhcp6c starting dhcp6c
141 local client_interface client_ifname client_device
142 config_get client_interface basic interface
143 network_get_device client_ifname "$client_interface"
144 network_get_physdev client_device "$client_interface" || client_device="$client_ifname"
146 local config_file="/var/etc/dhcp6c.conf"
147 local duid_file="/var/dhcp6c_duid"
148 mkdir -m 755 -p /var/etc
149 dhcp6c_write_config > $config_file
150 dhcp6c_write_duid "$user_duid" > $duid_file
154 config_get_bool debug basic debug 0
155 [ $debug -eq 1 ] && debug_option="-D"
156 /usr/sbin/dhcp6c -c $config_file $debug_option $client_ifname
159 ACTION=start /sbin/hotplug-call dhcp6c
165 logger -t dhcp6c stopping dhcp6c
166 service_kill dhcp6c /var/run/dhcp6c.pid
167 rm -f /var/etc/dhcp6c.conf /var/run/dhcp6c.pid
168 ACTION=stop /sbin/hotplug-call dhcp6c