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89 lines
2.8 KiB
Bash
89 lines
2.8 KiB
Bash
#!/bin/sh
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[ -L /sbin/udhcpc ] || exit 0
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. /lib/functions.sh
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. ../netifd-proto.sh
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init_proto "$@"
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proto_dhcp_init_config() {
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renew_handler=1
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proto_config_add_string 'ipaddr:ipaddr'
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proto_config_add_string 'hostname:hostname'
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proto_config_add_string clientid
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proto_config_add_string vendorid
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proto_config_add_boolean 'broadcast:bool'
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proto_config_add_boolean 'norelease:bool'
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proto_config_add_string 'reqopts:list(string)'
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proto_config_add_boolean 'defaultreqopts:bool'
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proto_config_add_string iface6rd
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proto_config_add_array 'sendopts:list(string)'
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proto_config_add_boolean delegate
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proto_config_add_string zone6rd
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proto_config_add_string zone
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proto_config_add_string mtu6rd
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proto_config_add_string customroutes
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proto_config_add_boolean classlessroute
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}
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proto_dhcp_add_sendopts() {
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[ -n "$1" ] && append "$3" "-x $1"
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}
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proto_dhcp_setup() {
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local config="$1"
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local iface="$2"
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local ipaddr hostname clientid vendorid broadcast norelease reqopts defaultreqopts iface6rd sendopts delegate zone6rd zone mtu6rd customroutes classlessroute
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json_get_vars ipaddr hostname clientid vendorid broadcast norelease reqopts defaultreqopts iface6rd delegate zone6rd zone mtu6rd customroutes classlessroute
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local opt dhcpopts
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for opt in $reqopts; do
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append dhcpopts "-O $opt"
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done
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json_for_each_item proto_dhcp_add_sendopts sendopts dhcpopts
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[ -z "$hostname" ] && hostname="$(cat /proc/sys/kernel/hostname)"
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[ "$hostname" = "*" ] && hostname=
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[ "$defaultreqopts" = 0 ] && defaultreqopts="-o" || defaultreqopts=
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[ "$broadcast" = 1 ] && broadcast="-B" || broadcast=
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[ "$norelease" = 1 ] && norelease="" || norelease="-R"
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[ -n "$clientid" ] && clientid="-x 0x3d:${clientid//:/}" || clientid="-C"
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[ -n "$iface6rd" ] && proto_export "IFACE6RD=$iface6rd"
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[ "$iface6rd" != 0 -a -f /lib/netifd/proto/6rd.sh ] && append dhcpopts "-O 212"
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[ -n "$zone6rd" ] && proto_export "ZONE6RD=$zone6rd"
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[ -n "$zone" ] && proto_export "ZONE=$zone"
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[ -n "$mtu6rd" ] && proto_export "MTU6RD=$mtu6rd"
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[ -n "$customroutes" ] && proto_export "CUSTOMROUTES=$customroutes"
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[ "$delegate" = "0" ] && proto_export "IFACE6RD_DELEGATE=0"
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# Request classless route option (see RFC 3442) by default
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[ "$classlessroute" = "0" ] || append dhcpopts "-O 121"
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proto_export "INTERFACE=$config"
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proto_run_command "$config" udhcpc \
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-p /var/run/udhcpc-$iface.pid \
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-s /lib/netifd/dhcp.script \
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-f -t 0 -i "$iface" \
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${ipaddr:+-r $ipaddr} \
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${hostname:+-x "hostname:$hostname"} \
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${vendorid:+-V "$vendorid"} \
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$clientid $defaultreqopts $broadcast $norelease $dhcpopts
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}
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proto_dhcp_renew() {
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local interface="$1"
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# SIGUSR1 forces udhcpc to renew its lease
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local sigusr1="$(kill -l SIGUSR1)"
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[ -n "$sigusr1" ] && proto_kill_command "$interface" $sigusr1
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}
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proto_dhcp_teardown() {
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local interface="$1"
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proto_kill_command "$interface"
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}
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add_protocol dhcp
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