sysconfig/network-scripts/ifup


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

#!/bin/bash
PATH=/sbin:/usr/sbin:/bin:/usr/bin
TEXTDOMAIN=initscripts

cd /etc/sysconfig/network-scripts
. network-functions
. /etc/rc.d/init.d/functions

need_hostname

CONFIG=${1}

[ -z "${CONFIG}" ] && {
    echo $"usage: ifup <device name>" >&2
    exit 1
}

[ -f "${CONFIG}" ] || CONFIG=ifcfg-${CONFIG}
[ -f "${CONFIG}" ] || {
    echo $"usage: ifup <device name>" >&2
    exit 1
}

if [ ${UID} != 0 ]; then
    if [ -x /usr/sbin/usernetctl ]; then
	if /usr/sbin/usernetctl ${CONFIG} report ; then
	    exec /usr/sbin/usernetctl ${CONFIG} up
	fi
    fi
    echo $"Users cannot control this device." >&2
    exit 1
fi

source_config

if [ "foo$2" = "fooboot" -a "${ONBOOT}" = "no" -o "${ONBOOT}" = "NO" ]
then
    exit
fi

IPSETUP=no

DEVICETYPE=`echo ${DEVICE} | sed "s/[0-9]*$//"`
REALDEVICE=`echo ${DEVICE} | sed 's/:.*//g'`
if echo ${DEVICE} | grep -q ':' ; then
    ISALIAS=yes
else
    ISALIAS=no
fi

if [ -n "${WIRELESS_ENC_KEY}" -a -x /sbin/iwconfig ]; then
   iwconfig ${DEVICE} enc ${WIRELESS_ENC_KEY} >/dev/null 2>&1
fi

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

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

if [ -x /sbin/ifup-pre-local ]; then
    /sbin/ifup-pre-local ${DEVICE}
fi

OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-${DEVICETYPE}"

if [ -x ${OTHERSCRIPT} ]; then
    exec ${OTHERSCRIPT} ${CONFIG} $2
fi

# is this device available? (this catches PCMCIA devices for us)
LC_ALL= LANG= /sbin/ifconfig ${REALDEVICE} 2>&1 | grep -s "not found" > /dev/null
if [ "$?" = "0" ]; then
    echo $"Delaying ${DEVICE} initialization."
    exit 1
fi

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

    ifconfig ${DEVICE} down
    echo $"Enslaving ${DEVICE} to ${MASTER}"
    ifenslave ${RFLAG} "${MASTER}" "${DEVICE}"

    exit 0
fi

if [ -n "${MACADDR}" ]; then
   ifconfig ${DEVICE} hw ether ${MACADDR}
fi

if [ -n "${DYNCONFIG}" ]; then
    PUMPARGS=
    DHCPCDARGS=
    if [ -n "${DHCP_HOSTNAME}" ]; then
       PUMPARGS="-h ${DHCP_HOSTNAME}"
       DHCPCDARGS="-h ${DHCP_HOSTNAME}"
    fi
    if [ -n "${NEEDHOSTNAME}" ]; then
       PUMPARGS="${PUMPARGS} --lookup-hostname"
       DHCPCDARGS="${DHCPCDARGS} -H"
    fi
    if [ "${PEERDNS}" = "no" ]; then
       PUMPARGS="${PUMPARGS} -d"
       DHCPDARGS="${DHCPDARGS} -R"
    fi
    echo -n $"Determining IP information for ${DEVICE}..."
    
    if [ -x /sbin/pump ] && /sbin/pump ${PUMPARGS} -i ${DEVICE} ; then
	echo $" done."
    elif [ -x /sbin/dhcpcd ] && /sbin/dhcpcd ${DHCPCDARGS} ${DEVICE} ; then
	echo $" done."
    else
	echo $" failed."
	exit 1
    fi
else 
    if [ -z "${IPADDR}" ]; then
         # enable device without IP, useful for e.g. PPPoE
         ifconfig ${DEVICE} up ${MTU:+mtu $MTU}
	 exec /etc/sysconfig/network-scripts/ifup-post ${CONFIG} ${2}
    fi
  
    if [ -z "${NETMASK}" ]; then
	eval `/bin/ipcalc --netmask ${IPADDR}`
    fi

    if [ -z "${BROADCAST}" ]; then
	eval `/bin/ipcalc --broadcast ${IPADDR} ${NETMASK}`
    fi

    if [ -z "${NETWORK}" ]; then
	eval `/bin/ipcalc --network ${IPADDR} ${NETMASK}`
    fi
    
    ifconfig ${DEVICE} ${IPADDR} netmask ${NETMASK} broadcast ${BROADCAST} \
    	$(toggle_value arp $ARP) \
	$(toggle_value promisc $PROMISC) \
	$(toggle_value allmulti $ALLMULTI)
	
    # don't re-add subnet route on 2.2 kernels, but add a route
    # to a non-local subnet.
    # stupid hack, but it should work
    if [ "$ISALIAS" = no ] && [ -z "`route -n | sed "s/ .*//" | grep ${NETWORK}`" ]; then
	route add -net ${NETWORK} netmask ${NETMASK} dev ${DEVICE}
    fi

    . /etc/sysconfig/network

    if [ "${GATEWAYDEV}" = "" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
	# set up default gateway
	if [ "${GATEWAY}" != "" -a "`ipcalc --network ${GATEWAY} ${NETMASK}`" = "${NETWORK}" ]; then
	    route add default gw ${GATEWAY} ${DEVICE}
	    DEFGW=${GATEWAY}
	elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
	    route add default ${DEVICE}
	fi
    fi
fi

. /etc/sysconfig/network

# IPv6 initialisation?
if [ "${NETWORKING_IPV6}" = "yes" ]; then
	/etc/sysconfig/network-scripts/ifup-ipv6 $DEVICE
fi


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

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