#!/bin/sh
#----------------------------------------------------------------------------
# /etc/rc.d/circuits.dhcp - DHCP circuit(s)
#
# Last Update:  $Id$
#----------------------------------------------------------------------------

# $1 = circuit information file
# $2 = variable receiving an error message (if any)
dhcp_circuit_add()
{
    circ_dev=$circ_dhcp_dev

    local circ_dhcp_startdelay=${circ_dhcp_startdelay:-0}
    local circ_dhcp_accept_csr=${circ_dhcp_accept_csr:-yes}

    # keep this in sync with the defaults in dhcp_client.ext!
    case $circ_protocols in
    ipv4) local circ_dhcp_daemon=${circ_dhcp_daemon:-dhcpcd} ;;
    ipv6) local circ_dhcp_daemon=${circ_dhcp_daemon:-dibbler} ;;
    esac

    circuit_allocate_device dhcp circ_alias

    cat >> $1 <<EOF
circ_dhcp_dev=$circ_dhcp_dev
circ_dhcp_daemon=$circ_dhcp_daemon
circ_dhcp_hostname=$circ_dhcp_hostname
circ_dhcp_startdelay=$circ_dhcp_startdelay
circ_dhcp_accept_csr=$circ_dhcp_accept_csr
circ_dhcp_prefix_length=$circ_dhcp_prefix_length
EOF

    return 0
}

# $1 = circuit identifier
# $2 = daemon's exit code
dhcp_circuit_cleanup()
{
    local circ_id=$1 i=1 prefix circ_dev
    local dibbler_dir=/var/lib/dibbler/$circ_id
    local config_file=$dibbler_dir/client.conf \
        notify_script=$dibbler_dir/dibbler-notify-${circ_id}.sh

    for prefix in $(circuit_get_prefixes $circ_id ipv6 | cut -d' ' -f 1)
    do
        export SRV_PREFIX${i}=${prefix%/*}
        export SRV_PREFIX${i}LEN=${prefix##*/}
        i=$((i+1))
    done

    circuit_read_field $circ_id circ_dev
    IFACE=$circ_dev CIRCD_SYNC=yes $notify_script delete
}