[package] wide-dhcpv6:
[openwrt/svn-archive/archive.git] / ipv6 / wide-dhcpv6 / files / dhcp6c.init
1 #!/bin/sh /etc/rc.common
2
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'
4
5 get_ifname() {
6 local interface=$1
7 local ifname
8 scan_interfaces
9 config_get ifname "$interface" ifname
10 printf '%s\n' "$ifname"
11 return 0
12 }
13
14 get_device() {
15 local interface=$1
16 local ifname=$2
17 local device
18 scan_interfaces
19 config_get device "$interface" device
20 grep -qE "^ *$device:" /proc/net/dev && \
21 printf '%s\n' "$device" || \
22 printf '%s\n' "$ifname"
23 return 0
24 }
25
26 dhcp6c_write_duid() {
27 local mac="${1:-$(ifconfig "$client_device" | sed -ne 's/[[:space:]]*$//; s/.*HWaddr //p')}"
28 local pat="[0-9A-F][0-9A-F]"
29
30 case "$mac" in
31 $pat:$pat:$pat:$pat:$pat:$pat:$pat:$pat:$pat:$pat)
32 printf $(echo "$mac" | sed -e 's/^/\\x/; s/:/\\x/g')
33 logger -t dhcp6c "Using user provided DUID $mac"
34 ;;
35 $pat:$pat:$pat:$pat:$pat:$pat)
36 local oIFS="$IFS"; IFS=":"; set -- $mac; IFS="$oIFS"
37
38 # low endian
39 if [ "$(printf \\1 | hexdump -n1 -ve '8/2 "%04x"')" = "0001" ]; then
40 printf \\x0a\\x00
41
42 # big endian
43 else
44 printf \\x00\\x0a
45 fi
46
47 printf \\x00\\x03\\x00\\x06\\x$1\\x$2\\x$3\\x$4\\x$5\\x$6
48 logger -t dhcp6c "Using MAC address DUID 00:03:00:06:$1:$2:$3:$4:$5:$6"
49 ;;
50 *)
51 logger -t dhcp6c "Unable to derive DUID from interface '$client_device' and no valid user DUID given"
52 ;;
53 esac
54 }
55
56 dhcp6c_write_interface() {
57 local cfg=$1
58 local sla_id
59 local sla_len
60 local enabled
61
62 config_get_bool enabled "$cfg" enabled 0
63
64 if [ $enabled -ne 0 ]; then
65
66 config_get sla_id "$cfg" sla_id
67 config_get sla_len "$cfg" sla_len
68
69 printf '\tprefix-interface %s {\n' "$(get_ifname $cfg)"
70 printf '\t\tsla-id %s;\n' "$sla_id"
71 printf '\t\tsla-len %s;\n' "$sla_len"
72 printf '\t};\n'
73
74 fi
75
76 }
77
78 dhcp6c_write_request() {
79 printf '\trequest %s;\n' $1 | sed -e s/_/-/g
80 }
81
82 dhcp6c_write_config() {
83
84 local pd
85 local na
86 config_get_bool pd basic pd 0
87 config_get_bool na basic na 0
88
89 printf 'interface %s {\n' "$client_ifname"
90
91 if [ $pd -ne 0 ]; then
92 printf '\tsend ia-pd 0;\n'
93 fi
94
95 if [ $na -ne 0 ]; then
96 printf '\tsend ia-na 0;\n'
97 fi
98
99 local rapid_commit
100 config_get_bool rapid_commit basic rapid_commit 0
101 [ $rapid_commit -ne 0 ] && printf '\tsend rapid-commit;\n'
102
103 local script
104 config_get script basic script
105 [ "$script" != "" ] && printf '\tscript "%s";\n' "$script"
106
107 local request
108 local value
109 for request in $DHCP6C_REQUEST_OPTIONS; do
110 config_get_bool value basic "$request" 0
111 [ $value -ne 0 ] && dhcp6c_write_request "$request"
112 done
113
114 printf '};\n\n'
115
116 if [ $pd -ne 0 ]; then
117 printf 'id-assoc pd 0 {\n'
118 config_foreach dhcp6c_write_interface interface
119 printf '};\n\n'
120 fi
121
122 if [ $na -ne 0 ]; then
123 printf 'id-assoc na 0 {\n'
124 printf '};\n\n'
125 fi
126
127 return 0
128 }
129
130 start() {
131
132 [ ! -e /etc/dhcp6cctlkey ] && `dd if=/dev/urandom count=1 2> /dev/null | md5sum | cut -d" " -f1 > /etc/dhcp6cctlkey`
133
134 [ -e /var/run/dhcp6c.pid ] && return 0
135
136 include /lib/network
137
138 config_load "dhcp6c"
139
140 local enabled
141 config_get_bool enabled basic enabled 0
142 [ $enabled -eq 0 ] && return 0
143
144 local user_duid
145 config_get user_duid basic duid
146
147 logger -t dhcp6c starting dhcp6c
148
149 local client_interface
150 config_get client_interface basic interface
151 local client_ifname=$(get_ifname "$client_interface")
152 local client_device=$(get_device "$client_interface" "$client_ifname")
153
154 local config_file="/var/etc/dhcp6c.conf"
155 local duid_file="/var/dhcp6c_duid"
156 mkdir -m 755 -p /var/etc
157 dhcp6c_write_config > $config_file
158 dhcp6c_write_duid "$user_duid" > $duid_file
159
160 local debug
161 local debug_option
162 config_get_bool debug basic debug 0
163 [ $debug -eq 1 ] && debug_option="-D"
164 /usr/sbin/dhcp6c -c $config_file $debug_option $client_ifname
165
166 sleep 3
167 ACTION=start /sbin/hotplug-call dhcp6c
168
169 return 0
170
171 }
172
173 stop() {
174
175 logger -t dhcp6c stopping dhcp6c
176 service_kill dhcp6c /var/run/dhcp6c.pid
177 rm -f /var/etc/dhcp6c.conf /var/run/dhcp6c.pid
178 ACTION=stop /sbin/hotplug-call dhcp6c
179 return 0
180
181 }
182
183