Upstream refresh for v1.5.0-rc1 : Upstream 19.07 : 4fb6b8c553f692eeb5bcb203e0f8ee8df0...
[librecmc/librecmc.git] / package / network / config / netifd / files / lib / netifd / proto / dhcp.sh
1 #!/bin/sh
2
3 [ -L /sbin/udhcpc ] || exit 0
4
5 . /lib/functions.sh
6 . ../netifd-proto.sh
7 init_proto "$@"
8
9 proto_dhcp_init_config() {
10         renew_handler=1
11
12         proto_config_add_string 'ipaddr:ipaddr'
13         proto_config_add_string 'hostname:hostname'
14         proto_config_add_string clientid
15         proto_config_add_string vendorid
16         proto_config_add_boolean 'broadcast:bool'
17         proto_config_add_boolean 'release:bool'
18         proto_config_add_string 'reqopts:list(string)'
19         proto_config_add_boolean 'defaultreqopts:bool'
20         proto_config_add_string iface6rd
21         proto_config_add_array 'sendopts:list(string)'
22         proto_config_add_boolean delegate
23         proto_config_add_string zone6rd
24         proto_config_add_string zone
25         proto_config_add_string mtu6rd
26         proto_config_add_string customroutes
27         proto_config_add_boolean classlessroute
28 }
29
30 proto_dhcp_add_sendopts() {
31         [ -n "$1" ] && append "$3" "-x $1"
32 }
33
34 proto_dhcp_setup() {
35         local config="$1"
36         local iface="$2"
37
38         local ipaddr hostname clientid vendorid broadcast release reqopts defaultreqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes classlessroute
39         json_get_vars ipaddr hostname clientid vendorid broadcast release reqopts defaultreqopts iface6rd delegate zone6rd zone mtu6rd customroutes classlessroute
40
41         local opt dhcpopts
42         for opt in $reqopts; do
43                 append dhcpopts "-O $opt"
44         done
45
46         json_for_each_item proto_dhcp_add_sendopts sendopts dhcpopts
47
48         [ -z "$hostname" ] && hostname="$(cat /proc/sys/kernel/hostname)"
49         [ "$hostname" = "*" ] && hostname=
50
51         [ "$defaultreqopts" = 0 ] && defaultreqopts="-o" || defaultreqopts=
52         [ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
53         [ "$release" = 1 ] && release="-R" || release=
54         [ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C"
55         [ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd"
56         [ "$iface6rd" != 0 -a -f /lib/netifd/proto/6rd.sh ] && append dhcpopts "-O 212"
57         [ -n "$zone6rd" ] && proto_export "ZONE6RD=$zone6rd"
58         [ -n "$zone" ] && proto_export "ZONE=$zone"
59         [ -n "$mtu6rd" ] && proto_export "MTU6RD=$mtu6rd"
60         [ -n "$customroutes" ] && proto_export "CUSTOMROUTES=$customroutes"
61         [ "$delegate" = "0" ] && proto_export "IFACE6RD_DELEGATE=0"
62         # Request classless route option (see RFC 3442) by default
63         [ "$classlessroute" = "0" ] || append dhcpopts "-O 121"
64
65         proto_export "INTERFACE=$config"
66         proto_run_command "$config" udhcpc \
67                 -p /var/run/udhcpc-$iface.pid \
68                 -s /lib/netifd/dhcp.script \
69                 -f -t 0 -i "$iface" \
70                 ${ipaddr:+-r $ipaddr} \
71                 ${hostname:+-x "hostname:$hostname"} \
72                 ${vendorid:+-V "$vendorid"} \
73                 $clientid $defaultreqopts $broadcast $release $dhcpopts
74 }
75
76 proto_dhcp_renew() {
77         local interface="$1"
78         # SIGUSR1 forces udhcpc to renew its lease
79         local sigusr1="$(kill -l SIGUSR1)"
80         [ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
81 }
82
83 proto_dhcp_teardown() {
84         local interface="$1"
85         proto_kill_command "$interface"
86 }
87
88 add_protocol dhcp