aboutsummaryrefslogtreecommitdiffstats
path: root/sysconfig/network-scripts/ifup-eth
blob: 432f0d2d310d309890654f9dceadd5277cd1f720 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
#!/bin/bash
# Network Interface Configuration System
# Copyright (c) 1996-2005 Red Hat, Inc. all rights reserved.
#
# This software may be freely redistributed under the terms of the GNU
# public license.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

. /etc/init.d/functions

cd /etc/sysconfig/network-scripts
. network-functions

[ -f ../network ] && . ../network

CONFIG=${1}

need_config ${CONFIG}

source_config

# Old BOOTP variable
if [ "${BOOTP}" = "yes" ]; then
    BOOTPROTO=bootp
fi

if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then
    DYNCONFIG=true
fi

# load the module associated with that device
# /sbin/modprobe ${REALDEVICE}
is_available ${REALDEVICE}

# remap, if the device is bound with a MAC address and not the right device num
# bail out, if the MAC does not fit
if [ -n "${HWADDR}" ]; then
    FOUNDMACADDR=`get_hwaddr ${REALDEVICE}`
    if [ "${FOUNDMACADDR}" != "${HWADDR}" ]; then
        curdev=`ip -o link | awk -F ':' -vIGNORECASE=1 "/$HWADDR/ { print \\$2 }"`
        [ -n "$curdev" ] && rename_device "${REALDEVICE}" "${HWADDR}" "${curdev}" || {
	    echo $"Device ${DEVICE} has different MAC address than expected, ignoring."
	    exit 1
	}
    fi
fi

if [ "${TYPE}" = "Bridge" ]; then
      if [ ! -x /usr/sbin/brctl ]; then
	  echo $"Bridge support not available: brctl not found"
	  exit 1
      fi
      /sbin/ip link set dev ${DEVICE} down 2>/dev/null
      /usr/sbin/brctl delbr ${DEVICE} 2>/dev/null
      /usr/sbin/brctl addbr ${DEVICE} 2>/dev/null
      # brctl doesn't report success/failure (BZ #104408)
      # Test for ourselves whether it worked.
      if ! /usr/sbin/brctl show | LANG=C grep -q "^${DEVICE}	" ; then
	    echo $"Bridge support not available in this kernel"
	    exit 1
      fi
      [ -n "${DELAY}" ] && /usr/sbin/brctl setfd ${DEVICE} ${DELAY}
      [ -n "${GCINT}" ] && /usr/sbin/brctl setgcint ${DEVICE} ${GCINT}
      [ -n "${STP}" ] && /usr/sbin/brctl stp ${DEVICE} ${STP}
fi

if [ -n "${BRIDGE}" -a -x /usr/sbin/brctl ]; then
      /sbin/ip addr flush dev ${DEVICE} 2>/dev/null
      /sbin/ip link set dev ${DEVICE} up
      /usr/sbin/brctl addif ${BRIDGE} ${DEVICE}
      # Upon adding a device to a bridge, 
      # it's necessary to make radvd reload its config
      [ -r /var/run/radvd/radvd.pid ] && kill -HUP `cat /var/run/radvd/radvd.pid`
      exit 0
fi 

# now check the real state
is_available ${REALDEVICE} || {
      if [ "$?" = "1" ] ; then
         echo $"$alias device ${DEVICE} does not seem to be present, delaying initialization."
         exit 1
      else
         exit 0
      fi
}

# is the device wireless? If so, configure wireless device specifics
is_wireless_device ${DEVICE} && . ./ifup-wireless

# slave device?
if [ "${SLAVE}" = yes -a "${ISALIAS}" = no -a "${MASTER}" != "" -a \
     -x /sbin/ifenslave ]; then
    RFLAG="" ; [ "${RECEIVEONLY}" = yes ] && RFLAG="-r"

    /sbin/ip link set dev ${DEVICE} down
    echo $"Enslaving ${DEVICE} to ${MASTER}"
    ifenslave ${RFLAG} "${MASTER}" "${DEVICE}" >/dev/null 2>&1

    if [ -n "$ETHTOOL_OPTS" ] ; then
        /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS
    fi

    exit 0
fi

# Bonding initialization. For DHCP, we need to enslave the devices early,
# so it can actually get an IP.
if [ "${TYPE}" =  "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then
    /sbin/ip link set dev ${DEVICE} down
    /sbin/ip link set dev ${DEVICE} up
    for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do
        if [ "$BOOTPROTO" = "dhcp" ]; then
		/sbin/ifup ${device##*/}
    	fi
    done
fi

# this isn't the same as the MAC in the configuration filename.  It is
# available as a configuration option in the config file, forcing the kernel
# to think an ethernet card has a different MAC address than it really has.
if [ -n "${MACADDR}" ]; then
   ip link set dev ${DEVICE} address ${MACADDR}
fi
if [ -n "${MTU}" ]; then
   ip link set dev ${DEVICE} mtu ${MTU}
fi

		     
if [ -n "${DYNCONFIG}" -a -x /sbin/dhclient ]; then
    # Remove any temporary references which were previously added to dhclient config
    if [ -w /etc/dhclient-${DEVICE}.conf ] ; then
        LC_ALL=C grep -v "# temporary RHL ifup addition" /etc/dhclient-${DEVICE}.conf > /etc/dhclient-${DEVICE}.conf.ifupnew 2> /dev/null
        cat /etc/dhclient-${DEVICE}.conf.ifupnew > /etc/dhclient-${DEVICE}.conf
        rm -f /etc/dhclient-${DEVICE}.conf.ifupnew
    fi
    if [[ "${PERSISTENT_DHCLIENT}" =  [yY1]* ]]; then
       ONESHOT="";
    else
       ONESHOT="-1";
    fi;
    if [ -n "${DHCP_HOSTNAME}" ]; then
       # Send a host-name to the DHCP server (requ. by some dhcp servers).
       if [ -w /etc/dhclient-${DEVICE}.conf ] ; then
           if ! LC_ALL=C grep "send *host-name *\"${DHCP_HOSTNAME}\"" /etc/dhclient-${DEVICE}.conf > /dev/null 2>&1 ; then
               echo "send host-name \"${DHCP_HOSTNAME}\";  # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf
           fi
       elif ! [ -e /etc/dhclient-${DEVICE}.conf ] ; then
           echo "send host-name \"${DHCP_HOSTNAME}\";  # temporary RHL ifup addition" >> /etc/dhclient-${DEVICE}.conf
       fi
    fi
    # allow users to use generic '/etc/dhclient.conf' (as documented in manpage!) 
    # if per-device file doesn't exist or is empty
    if [ -s /etc/dhclient-${DEVICE}.conf ]; then
       DHCLIENTCONF="-cf /etc/dhclient-${DEVICE}.conf";
    else
       DHCLIENTCONF='';
    fi;
    DHCLIENTARGS="${DHCLIENTARGS} ${ONESHOT} -q ${DHCLIENTCONF} -lf /var/lib/dhcp/dhclient-${DEVICE}.leases -pf /var/run/dhclient-${DEVICE}.pid"
    echo
    echo -n $"Determining IP information for ${DEVICE}..."
    if check_link_down ${DEVICE}; then
	echo $" failed; no link present.  Check cable?"
	ip link set dev ${DEVICE} down >/dev/null 2>&1
	exit 1
    fi

    if [ -n "$ETHTOOL_OPTS" ] ; then
        /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS
    fi

    if /sbin/dhclient ${DHCLIENTARGS} ${DEVICE} ; then
	echo $" done."
    else
	echo $" failed."
	exit 1
    fi
# end dynamic device configuration
else 
    if [ -z "${IPADDR}" ]; then
         # enable device without IP, useful for e.g. PPPoE
	 ip link set dev ${REALDEVICE} up
	 if [ -n "$ETHTOOL_OPTS" ] ; then
	 	/sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS
	 fi
	 # Bonding initialization part II
	 if [ "${TYPE}" =  "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then
    		for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do
			/sbin/ifup ${device##*/}
    		done
	 fi

	 if [ "${NETWORKING_IPV6}" = "yes" ]; then
	    /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG}
	 fi
	 exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}
    fi
  
    expand_config
    
    [ -n "${ARP}" ] && \
	ip link set dev ${REALDEVICE} $(toggle_value arp $ARP)
   
    if ! ip link set dev ${REALDEVICE} up ; then
	echo $"Failed to bring up ${DEVICE}."
	exit 1
    fi

    if [ -n "$ETHTOOL_OPTS" ] ; then
        /sbin/ethtool -s ${REALDEVICE} $ETHTOOL_OPTS
    fi

    if ! arping -q -c 2 -w 3 -D -I ${REALDEVICE} ${IPADDR} ; then
	echo $"Error, some other host already uses address ${IPADDR}."
	exit 1
    fi

    if [ "${DEVICE}" = "lo" ]; then
    	SCOPE="scope host"
    else
        SCOPE=${SCOPE:-}
    fi
    
    if [ -n "$SRCADDR" ]; then
       SRC="src $SRCADDR"
    else
       SRC=
    fi
    
    if ! LC_ALL=C ip addr ls ${REALDEVICE} | LC_ALL=C grep -q "${IPADDR}/${PREFIX}" ; then
	 if ! ip addr add ${IPADDR}/${PREFIX} \
	    brd ${BROADCAST:-+} dev ${REALDEVICE} ${SCOPE} label ${DEVICE}; then
	    echo $"Error adding address ${IPADDR} for ${DEVICE}."
	 fi
    fi
    
    if [ -n "$SRCADDR" ]; then
           sysctl -w "net.ipv4.conf.${REALDEVICE}.arp_filter=1" >/dev/null 2>&1
    fi

    # update ARP cache of neighboring computers
    arping -q -A -c 1 -I ${REALDEVICE} ${IPADDR}
    ( sleep 2;
      arping -q -U -c 1 -I ${REALDEVICE} ${IPADDR} ) > /dev/null 2>&1 < /dev/null &

    # Set a default route.
    if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${REALDEVICE}" ]; then
	# set up default gateway. replace if one already exists
	if [ -n "${GATEWAY}" -a "`ipcalc --network ${GATEWAY} ${NETMASK} 2>/dev/null`" = "NETWORK=${NETWORK}" ]; then
	    ip route replace default via ${GATEWAY} ${WINDOW:+window $WINDOW} ${SRC} ${GATEWAYDEV:+dev $GATEWAYDEV}
	elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
	    ip route replace default ${SRC} ${WINDOW:+window $WINDOW} dev ${REALDEVICE}
	fi
    fi
    
fi

# Bonding initialization part II - for static, enslave the devices. For
# DHCP, remove any routes for the slaves.
if [ "${TYPE}" =  "Bonding" ] || ethtool -i $DEVICE 2>/dev/null| grep -q "driver: bonding" ; then
    for device in `LANG=C grep -l "^[[:space:]]*MASTER=${DEVICE}" /etc/sysconfig/network-scripts/ifcfg-*` ; do
	if [ "$BOOTPROTO" = "dhcp" ]; then
		DEV=$DEVICE
                eval $(LANG=C fgrep "DEVICE=" $device)
		ifenslave -d $DEV $DEVICE
		DEVICE=$DEV
	fi
	/sbin/ifup ${device##*/}
    done
fi

# Add Zeroconf route.
if [ -z "${NOZEROCONF}" -a "${ISALIAS}" = "no" ]; then
    ip route replace 169.254.0.0/16 dev ${REALDEVICE} 
fi

# IPv6 initialisation?
if [ "${NETWORKING_IPV6}" = "yes" ]; then
    /etc/sysconfig/network-scripts/ifup-ipv6 ${CONFIG}
    if [[ "${DHCPV6C}"  = [Yy1]* ]] && [ -x /sbin/dhcp6c ]; then
	/sbin/dhcp6c ${DEVICE};
        dhcp6_pid=(`/bin/ps -eo 'pid,args' | /bin/grep "dhcp6c ${DEVICE}" | egrep -v grep`);
	echo ${dhcp6_pid[0]} > /var/run/dhcp6c_${DEVICE}.pid
    fi;
fi

if [ "${IPX}" = yes ]; then
       /etc/sysconfig/network-scripts/ifup-ipx ${DEVICE}
fi

exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}