/[baselayout]/trunk/net-scripts/net/dhclient.sh
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Contents of /trunk/net-scripts/net/dhclient.sh

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Revision 2050 - (show annotations) (download) (as text)
Fri Jun 2 20:02:40 2006 UTC (8 years, 6 months ago) by uberlord
File MIME type: text/x-sh
File size: 3220 byte(s)
    Allow LC_* and LANG vars through to runscript.sh by default.

    net.lo now comes after bootmisc, #135118 thanks to Oldrich Jedlicka.

    arping.sh now has MAC address support, #134253 thanks to Oldrich Jedlicka.

    pppd.sh now updates secret files with a blank password, #134337

    Remove swapon call from /sbin/rc as localmount already calls it,
    partial fix for #134489
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 :

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