+#!/bin/sh
+#
+########################################################################
+# Begin
+#
+# Description : A collection of functions for the IPFire network scripts
+#
+# Authors : IPFire Development Team <developers@ipfire.org>
+#
+# Version : 01.00
+#
+# Notes :
+#
+########################################################################
+
+. /etc/sysconfig/rc
+. $rc_functions
+
+
+eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
+eval $(/usr/local/bin/readhash /var/ipfire/dns/settings)
+
+dhcpcd_get_pid() {
+ # This function returns the pid of a dhcpcd by a given
+ # network device, if a pidfile exists.
+
+ local device="$1"
+ local pidfile="/var/run/dhcpcd-${device}.pid"
+
+ # Check if a pid file exists.
+ if [ -f "${pidfile}" ] ; then
+
+ # Get the pid from the file.
+ local pid="$(<"${pidfile}")"
+
+ echo "${pid}"
+ fi
+}
+
+dhcpcd_is_running() {
+ # This functions checks if a dhcpcd is running by a given pid.
+
+ local pid="$1"
+
+ # Check if a dhcpcd is running.
+ if [ -n "${pid}" -a -d "/proc/${pid}" ]; then
+ # Return "0" (True) if a dhcpcd is running.
+ return 0
+ fi
+
+ # Return 1 (False) no dhcpcd is running.
+ return 1
+}
+
+dhcpcd_start() {
+ # This function will start a dhcpcd on a speciefied device.
+
+ local device="$1"
+ local dhcp_start=""
+
+ boot_mesg -n "Starting dhcpcd on the ${device} interface..."
+
+ # Check if a dhcpcd is already running.
+ local pid="$(dhcpcd_get_pid "${device}")"
+
+ if dhcpcd_is_running "${pid}"; then
+ boot_mesg "dhcpcd already running!" ${WARNING}
+ echo_warning
+ exit 2
+ fi
+
+ # Check if a DHCP hostname has been set.
+ if [ -n "${RED_DHCP_HOSTNAME}" ]; then
+ dhcp_start+="-h ${RED_DHCP_HOSTNAME}"
+ fi
+
+ # Start dhcpcd.
+ /sbin/dhcpcd "${device}" "${dhcp_start}" >/dev/null 2>&1
+ ret="$?"
+
+ if [ "${ret}" -eq 0 ]; then
+ . /var/ipfire/dhcpc/dhcpcd-"${device}".info
+ echo ""
+ echo_ok
+ boot_mesg " DHCP Assigned Settings for ${device}:"
+ boot_mesg_flush
+ boot_mesg " IP Address: $ip_address"
+ boot_mesg_flush
+
+ if [ -n "${RED_DHCP_HOSTNAME}" ]; then
+ boot_mesg " Hostname: $RED_DHCP_HOSTNAME"
+ boot_mesg_flush
+ fi
+
+ boot_mesg " Subnet Mask: $subnet_mask"
+ boot_mesg_flush
+ boot_mesg " Default Gateway: $routers"
+ boot_mesg_flush
+ boot_mesg " DNS Server: $domain_name_servers"
+ boot_mesg_flush
+ else
+ echo ""
+ $(exit "${ret}")
+ evaluate_retval
+ fi
+}
+
+dhcpcd_stop() {
+ # This function stops a previously started dhcpcd on a given device.
+
+ local device="$1"
+ local dhcp_stop="-k"
+ local leaseinfo="/var/ipfire/dhcpc/dhcpcd-${device}.info"
+
+ boot_mesg -n "Stopping dhcpcd on the ${device} interface..."
+
+ # Check if a dhcpcd is running.
+ local pid="$(dhcpcd_get_pid "${device}")"
+
+ if ! dhcpcd_is_running "${pid}"; then
+ boot_mesg "dhcpcd not running!" ${WARNING}
+ echo_warning
+ exit 1
+ fi
+
+ # Check if we got a valid lease.
+ if [ -e $leaseinfo ]; then
+ . $leaseinfo
+ if [ "$dchp_lease_time" = "4294967295" ]; then
+ # do nothing, just echo ok
+ echo_ok
+ else
+ # Stop dhcpcd.
+ /sbin/dhcpcd "${device}" "${dhcp_stop}" &> /dev/null
+ ret="$?"
+
+ # Wait until dhcpd has stopped.
+ while [ -d "/proc/${pid}" ]; do
+ sleep 1
+ done
+
+ # Display console message, depended on the exit code
+ # of the stopped dhcpcd.
+ if [ "${ret}" -eq 0 ]; then
+ echo_ok
+ elif [ "${ret}" -eq 1 ]; then
+ boot_mesg "failed to stop dhcpcd!" ${WARNING}
+ echo_warning
+ else
+ echo_failure
+ fi
+ fi
+ fi
+}