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
|
#!/bin/bash
# Network Interface Configuration System
# Copyright (c) 1996-2001 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=${1}
[ -z "${CONFIG}" ] && {
echo $"Usage: ifup <device name>" >&2
exit 1
}
need_config ${CONFIG}
[ -f "${CONFIG}" ] || {
echo $"$0: configuration for ${1} not found." >&2
echo $"Usage: ifup <device name>" >&2
exit 1
}
source_config
# Old BOOTP variable
if [ "${BOOTP}" = "yes" ]; then
BOOTPROTO=bootp
fi
if [ "${BOOTPROTO}" = "bootp" -o "${BOOTPROTO}" = "dhcp" ]; then
echo $"This device does not (yet) support dynamic IP configuration." >&2
exit 1
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
# now check the real state
is_available ${REALDEVICE} || {
if [ "$?" = "1" ] ; then
echo $"$alias device ${DEVICE} does not seem to be present, delaying initialization."
exit 1
else
exit 0
fi
}
# slave device?
if [ "${SLAVE}" = yes ]; then
echo $"This device does not slave operation." >&2
exit 1
fi
# this isn't the same as the MAC in the configuration filename. It is
# available as a configuration option in the config file, forcing the kernel
# to think an ethernet card has a different MAC address than it really has.
if [ -n "${MACADDR}" ]; then
ip link set dev ${DEVICE} address ${MACADDR}
fi
if [ -n "${MTU}" ]; then
ip link set dev ${DEVICE} mtu ${MTU}
fi
# Is there a firewall running, and does it look like one we configured?
FWACTIVE=
if iptables -L -n 2>/dev/null | LC_ALL=C grep -q RH-Lokkit-0-50-INPUT ; then
FWACTIVE=1
else
modprobe -r iptable_filter >/dev/null 2>&1
fi
if [ -z "${IPADDR}" ]; then
# enable device without IP, useful for e.g. PPPoE
ip link set dev ${REALDEVICE} up
if [ "${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 ${DEVICE}."
exit 1
fi
SCOPE=${SCOPE:-}
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.${REALDEVICE}.arp_filter=1" >/dev/null 2>&1
fi
# Set a default route.
if [ -z "${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 ${REALDEVICE}
fi
fi
# Add Zeroconf route.
if [ -z "${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}
fi
exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}
|
