aboutsummaryrefslogtreecommitdiffstats
path: root/sysconfig/network-scripts/network-functions
blob: d6deb549bb815a714d164d07cfa4e1761924b456 (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
# -*-Shell-script-*-
#
# This file is not a stand-alone shell script; it provides functions 
# to network scripts that source it.

# Set up a default search path.
PATH="/sbin:/usr/sbin:/bin:/usr/bin:/usr/X11R6/bin"
export PATH

need_config ()
{
    CURRENT_PROFILE=${CURRENT_PROFILE:-default}
    CURRENT_PROFILE=${CURRENT_PROFILE##*/}
    CONFIG=../networking/profiles/$CURRENT_PROFILE/ifcfg-${1}
    [ -f "${CONFIG}" ] && return || CONFIG=../networking/profiles/$CURRENT_PROFILE/${1}
    [ -f "${CONFIG}" ] && return || CONFIG=../networking/default/ifcfg-${1}
    [ -f "${CONFIG}" ] && return || CONFIG=../networking/default/${1}
    [ -f "${CONFIG}" ] && return || CONFIG="ifcfg-${1}"
    [ -f "${CONFIG}" ] && return || CONFIG="${1}"
}

source_config ()
{
    DEVNAME=`basename $CONFIG | sed 's/^ifcfg-//g'`

    if basename $CONFIG | grep -q '[^g]-' ; then
	PARENTCONFIG=`echo $CONFIG | sed 's/-[^-]*$//g'`
	PARENTDEVNAME=`basename $PARENTCONFIG | sed 's/^ifcfg-//g'`
	[ -f $PARENTCONFIG ] || {
	    echo $"Missing config file $PARENTCONFIG." >&2
	    exit 1
	}
	. $PARENTCONFIG
    fi
    . $CONFIG
}

expand_config ()
{
    if [ -z "${NETMASK}" ]; then
	eval `/bin/ipcalc --netmask ${IPADDR}`
    fi

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

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

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

toggle_value ()
{
    if [ "$2" = "yes"  -o "$2" = "YES" ] ; then
	echo "$1 on"
    elif [ "$2" = "no"  -o "$2" = "NO" ] ; then
	echo "$1 off"
    else
	echo ''
    fi
}
 
do_netreport ()
{
  # Notify programs that have requested notification
  ( cd /var/run/netreport || exit
    for i in * ; do
      if [ -f $i ]; then
        OWNER=`ls -l $i | awk '{ print $3 }'`
	
        if [ "`id -u`" = "0" ]; then
	  su -s /bin/bash $OWNER -c "kill -SIGIO $i >/dev/null 2>&1 || rm -f $i >/dev/null 2>&1" > /dev/null 2>&1
	else
	  kill -SIGIO $i >/dev/null 2>&1 || rm -f $i >/dev/null 2>&1
	fi
      fi
    done
  )
}

is_available ()
{
    LC_ALL= LANG= ip -o link | grep -q $1
    [ "$?" = "1" ] || return 0

    alias=`modprobe -c | awk "/^alias $1 / { print \\$3 }"`
    if [ -z "$alias" -o "$alias" = "off" ]; then
        return 2
    fi
    modprobe $1 > /dev/null 2>&1 || return 1
    LC_ALL= LANG= ip -o link | grep -q $1
    return $?
}

need_hostname ()
{
    CHECK_HOSTNAME=`hostname`
    if [ "$CHECK_HOSTNAME" = "(none)" -o "$CHECK_HOSTNAME" = "localhost" -o \
	"$CHECK_HOSTNAME" = "localhost.localdomain" ]; then
	return 0
    else
	return 1
    fi
}

set_hostname ()
{
    hostname $1
    if ! grep search /etc/resolv.conf >/dev/null 2>&1; then
	domain=`echo $1 | sed 's/^[^\.]*\.//'`
	echo "search $domain" >> /etc/resolv.conf
    fi
}

check_device_down ()
{
    if echo $1 | grep -q ':' ; then
     if LC_ALL=C ifconfig -a 2>/dev/null | grep -q $1 ; then
	  return 1
     else
	  return 0
     fi
    else 
     if LC_ALL=C ip -o link ls dev $1 2>/dev/null | grep -q ",UP" ; then
	return 1
     else
	return 0
     fi
    fi
}

check_mii_tool ()
{
   [ -x /sbin/mii-tool ] || return 2
   output=`LC_ALL=C mii-tool $1 2>&1`
   echo $output | LC_ALL=C grep -q "link ok" && return 1
   echo $output | LC_ALL=C grep -q "no link" && return 0 || return 2
}

check_ethtool ()
{
   [ -x /sbin/ethtool ] || return 2
   output=`LC_ALL=C ethtool $1 2>&1`
   echo $output | LC_ALL=C grep -q "Link detected: yes" && return 1
   echo $output | LC_ALL=C grep -q "Link detected: no" && return 0 || return 2
}


check_link_down ()
{
    if [ -x /sbin/mii-tool -o -x /sbin/ethtool ]; then
        if ! LC_ALL=C ip link show $1 2>/dev/null| grep -q UP ; then
	   ip link set $1 up >/dev/null 2>&1
	   timeout=0
	   while [ $timeout -le 10 ]; do
	   	check_mii_tool $1
		m=$?
		check_ethtool $1
		e=$?
		if [ $m -eq 1 ] || [ $e -eq 1 ] ; then
		    return 1
		fi
		if [ $m -eq 2 ] && [ $e -eq 2 ] ; then
		    return 1
		fi
		usleep 500000
		timeout=$((timeout+1))
	   done
	   return 0
	fi
    fi
    return 1
}

check_default_route ()
{
    LC_ALL=C ip route list match 0/0 | grep -q default
}

find_gateway_dev ()
{
    . /etc/sysconfig/network
    if [ -n "${GATEWAY}" -a "${GATEWAY}" != "none" ] ; then
	dev=`LC_ALL=C /sbin/ip route | \
             grep ${GATEWAY} | \
             sed -e 's/.* dev \([:alnum:]*\)/\1/'`
	if [ -n "$dev" ]; then
	    GATEWAYDEV="$dev"
        fi
    fi
}

add_default_route ()
{
    . /etc/sysconfig/network
    check_default_route && return 0
    find_gateway_dev
    if [ "$GATEWAYDEV" != "" -a -n "${GATEWAY}" -a \
 		"${GATEWAY}" != "none" ]; then
        if ! check_device_down $1; then
            if [ "$GATEWAY" = "0.0.0.0" ]; then
                /sbin/ip route add default dev ${GATEWAYDEV}
            else
                /sbin/ip route add default via ${GATEWAY}
            fi
        fi
    elif [ -f /etc/default-route ]; then
	/sbin/ip route add default via `cat /etc/default-route`
	rm -f /etc/default-route
    fi
}

is_wireless_device ()
{
    [ -x /sbin/iwconfig ] || return 1
    LC_ALL=C iwconfig $1 2>&1 | grep -q "no wireless extensions" || return 0
    return 1
}