net-scripts/net/dhclient.sh

# Copyright (c) 2004-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# Contributed by Roy Marples (uberlord@gentoo.org)

# Fix any potential localisation problems
# Note that LC_ALL trumps LC_anything_else according to locale(7)
dhclient() {
        LC_ALL=C /sbin/dhclient "$@"
}

# void dhclient_depend(void)
#
# Sets up the dependancies for the module
dhclient_depend() {
        after interface
        provide dhcp
        functions interface_exists interface_get_address
}

# void dhclient_expose(void)
#
# Expose variables that can be configured
dhclient_expose() {
        variables dhclient dhcp
}

# bool dhclient_check_installed(void)
#
# Returns 1 if dhclient is installed, otherwise 0
dhclient_check_installed() {
        [[ -x /sbin/dhclient ]] && return 0
        ${1:-false} && eerror "For DHCP (dhclient) support, emerge net-misc/dhcp"
        return 1
}

# bool dhclient_stop(char *iface)
#
# Stop dhclient on an interface
# Always returns 0
dhclient_stop() {
        local iface="$1" pidfile="/var/run/dhclient-$1.pid"

        [[ ! -f ${pidfile} ]] && return 0

        ebegin "Stopping dhclient on ${iface}"
        local ifvar="$(bash_variable "${iface}")"
        local d="dhcp_${ifvar}"
        [[ -z ${!d} ]] && d="dhcp"
        if [[ " ${!d} " == *" release "* ]] ; then
                dhclient -q -r -pf "${pidfile}" "${iface}"
        else
                start-stop-daemon --stop --exec /sbin/dhclient --pidfile "${pidfile}"
        fi
        eend $?
}

# bool dhclient_start(char *iface)
#
# Start DHCP on an interface by calling dhclient $iface $options
#
# Returns 0 (true) when a DHCP address is obtained, otherwise 1
dhclient_start() {
        local iface="$1" ifvar="$(bash_variable "$1")" dhconf=
        local pidfile="/var/run/dhclient-${iface}.pid"

        interface_exists "${iface}" true || return 1

        # Load our default options
        opts="dhclient_${ifvar}"
        opts="${!opts}"

        local d="dhcp_${ifvar}"
        [[ -z ${!d} ]] && d="dhcp"
        
        # Add our peer and metric options
        if [[ " ${!d} " == *" nogateway "* ]] ; then
                opts="${opts} -e PEER_ROUTERS=no"
        elif [[ " ${opts} " != *" -e PEER_ROUTERS="* ]] ; then
                opts="${opts} -e PEER_ROUTERS=yes"
        fi
        if [[ " ${!d} " == *" nodns "* ]] ; then
                opts="${opts} -e PEER_DNS=no"
        elif [[ " ${opts} " != *" -e PEER_DNS="* ]] ; then
                opts="${opts} -e PEER_DNS=yes"
        fi
        if [[ " ${!d} " == *" nontp "* ]] ; then
                opts="${opts} -e PEER_NTP=no"
        elif [[ " ${opts} " != *" -e PEER_NTP="* ]] ; then
                opts="${opts} -e PEER_NTP=yes"
        fi
        local metric="metric_${ifvar}"
        if [[ -n ${!metric} && ${!metric} != "0" ]] ; then
                opts="${opts} -e IF_METRIC=${!metric}"
        fi
        
        # Send our hostname by editing cffile
        if [[ " ${!d} " != *" nosendhost "* ]] ; then
                local hname="$(hostname)"
                if [[ ${hname} != "(none)" && ${hname} != "localhost" ]]; then
                        dhconf="${dhconf} interface \"${iface}\" {\n"
                        dhconf="${dhconf} send host-name \"${hname}\"\n;"
                        dhconf="${dhconf}}"
                fi
        fi

        # Bring up DHCP for this interface (or alias)
        ebegin "Running dhclient"
        echo -e "${dhconf}" | start-stop-daemon --start --exec /sbin/dhclient \
                --pidfile "${pidfile}" -- ${opts} -q -1 -pf "${pidfile}"
        eend $? || return 1 

        # DHCP succeeded, show address retrieved
        local addr="$(interface_get_address "${iface}")"
        einfo "${iface} received address ${addr}"

        return 0
}

# vim: set ts=4 :
1	# Copyright (c) 2004-2006 Gentoo Foundation
2	# Distributed under the terms of the GNU General Public License v2
3	# Contributed by Roy Marples (uberlord@gentoo.org)
4
5	# Fix any potential localisation problems
6	# Note that LC_ALL trumps LC_anything_else according to locale(7)
7	dhclient() {
8	LC_ALL=C /sbin/dhclient "$@"
9	}
10
11	# void dhclient_depend(void)
12	#
13	# Sets up the dependancies for the module
14	dhclient_depend() {
15	after interface
16	provide dhcp
17	functions interface_exists interface_get_address
18	}
19
20	# void dhclient_expose(void)
21	#
22	# Expose variables that can be configured
23	dhclient_expose() {
24	variables dhclient dhcp
25	}
26
27	# bool dhclient_check_installed(void)
28	#
29	# Returns 1 if dhclient is installed, otherwise 0
30	dhclient_check_installed() {
31	[[ -x /sbin/dhclient ]] && return 0
32	${1:-false} && eerror "For DHCP (dhclient) support, emerge net-misc/dhcp"
33	return 1
34	}
35
36	# bool dhclient_stop(char *iface)
37	#
38	# Stop dhclient on an interface
39	# Always returns 0
40	dhclient_stop() {
41	local iface="$1" pidfile="/var/run/dhclient-$1.pid"
42
43	[[ ! -f ${pidfile} ]] && return 0
44
45	ebegin "Stopping dhclient on ${iface}"
46	local ifvar="$(bash_variable "${iface}")"
47	local d="dhcp_${ifvar}"
48	[[ -z ${!d} ]] && d="dhcp"
49	if [[ " ${!d} " == " release " ]] ; then
50	dhclient -q -r -pf "${pidfile}" "${iface}"
51	else
52	start-stop-daemon --stop --exec /sbin/dhclient --pidfile "${pidfile}"
53	fi
54	eend $?
55	}
56
57	# bool dhclient_start(char *iface)
58	#
59	# Start DHCP on an interface by calling dhclient $iface $options
60	#
61	# Returns 0 (true) when a DHCP address is obtained, otherwise 1
62	dhclient_start() {
63	local iface="$1" ifvar="$(bash_variable "$1")" dhconf=
64	local pidfile="/var/run/dhclient-${iface}.pid"
65
66	interface_exists "${iface}" true \|\| return 1
67
68	# Load our default options
69	opts="dhclient_${ifvar}"
70	opts="${!opts}"
71
72	local d="dhcp_${ifvar}"
73	[[ -z ${!d} ]] && d="dhcp"
74
75	# Add our peer and metric options
76	if [[ " ${!d} " == " nogateway " ]] ; then
77	opts="${opts} -e PEER_ROUTERS=no"
78	elif [[ " ${opts} " != " -e PEER_ROUTERS=" ]] ; then
79	opts="${opts} -e PEER_ROUTERS=yes"
80	fi
81	if [[ " ${!d} " == " nodns " ]] ; then
82	opts="${opts} -e PEER_DNS=no"
83	elif [[ " ${opts} " != " -e PEER_DNS=" ]] ; then
84	opts="${opts} -e PEER_DNS=yes"
85	fi
86	if [[ " ${!d} " == " nontp " ]] ; then
87	opts="${opts} -e PEER_NTP=no"
88	elif [[ " ${opts} " != " -e PEER_NTP=" ]] ; then
89	opts="${opts} -e PEER_NTP=yes"
90	fi
91	local metric="metric_${ifvar}"
92	if [[ -n ${!metric} && ${!metric} != "0" ]] ; then
93	opts="${opts} -e IF_METRIC=${!metric}"
94	fi
95
96	# Send our hostname by editing cffile
97	if [[ " ${!d} " != " nosendhost " ]] ; then
98	local hname="$(hostname)"
99	if [[ ${hname} != "(none)" && ${hname} != "localhost" ]]; then
100	dhconf="${dhconf} interface \"${iface}\" {\n"
101	dhconf="${dhconf} send host-name \"${hname}\"\n;"
102	dhconf="${dhconf}}"
103	fi
104	fi
105
106	# Bring up DHCP for this interface (or alias)
107	ebegin "Running dhclient"
108	echo -e "${dhconf}" \| start-stop-daemon --start --exec /sbin/dhclient \
109	--pidfile "${pidfile}" -- ${opts} -q -1 -pf "${pidfile}"
110	eend $? \|\| return 1
111
112	# DHCP succeeded, show address retrieved
113	local addr="$(interface_get_address "${iface}")"
114	einfo "${iface} received address ${addr}"
115
116	return 0
117	}
118
119	# vim: set ts=4 :
Name	Value
svn:eol-style	native
svn:keywords	Author Date Id Revision