blob: 39011b65e54cf958fd7471807c01384c857e705d (
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
|
#!/bin/sh
[ "$IF_VERBOSITY" = 1 ] && set -x
IFSTATE=/var/run/ifstate
add_master()
{
# Return if $BOND_MASTER is already a bonding interface.
[ -f "/sys/class/net/$BOND_MASTER/bonding/slaves" ] && return
# If the bonding module is not yet loaded, load it.
if [ ! -r /sys/class/net/bonding_masters ]; then
modprobe -q bonding
fi
# Create the master interface.
if ! grep -sq "\\<$BOND_MASTER\\>" /sys/class/net/bonding_masters; then
echo "+$BOND_MASTER" > /sys/class/net/bonding_masters
fi
}
sysfs()
{
# Called with :
# $1 = value to write. Won't write if $1 is empty.
# $2 = basename of the file in bonding/ to write to.
if [ "$1" ] ; then
echo "$1" > "/sys/class/net/$BOND_MASTER/bonding/$2"
return $?
fi
return 0
}
sysfs_add()
{
# Called with :
# $1 = values to write.
# $2 = target filename.
for value in $1; do
# Do not add $1 to $2 if already present.
if ! grep -sq "\\<$value\\>" /sys/class/net/$BOND_MASTER/bonding/$2
then
sysfs "+$value" "$2"
fi
done
}
ifup_once()
{
local v=
[ "$IF_VERBOSITY" = 1 ] && v=-v
if [ "$1" != "$IFACE" ] && ! grep -q "^$1=" $IFSTATE && ifup -n "$1" >/dev/null 2>&1; then
ifup $v $1
fi
}
enslave_slaves()
{
case "$BOND_SLAVES" in
none)
BOND_SLAVES=""
;;
all)
BOND_SLAVES=`sed -ne 's/ *\(eth[^:]*\):.*/\1/p' /proc/net/dev`
AUTOIF="yes"
;;
esac
for slave in $BOND_SLAVES ; do
if ( [ "$AUTOIF" ] && grep -q "^$slave=" $IFSTATE ) ; then
echo "Not enslaving interface $slave since it is already configured"
else
# Ensure $slave is down.
ip link set "$slave" down 2>/dev/null
if ! sysfs_add "$slave" slaves 2>/dev/null ; then
echo "Failed to enslave $slave to $BOND_MASTER. Is $BOND_MASTER ready and a bonding interface ?" >&2
else
# Bring up slave if it is defined in interfaces
# This is usefull to bring up slaves that need extra setup.
ifup_once $slave
fi
fi
done
}
setup_master()
{
sysfs "$IF_BOND_MODE" mode
sysfs "$IF_BOND_MIIMON" miimon
sysfs "$IF_BOND_USE_CARRIER" use_carrier
sysfs "$IF_BOND_UPDELAY" updelay
sysfs "$IF_BOND_DOWNDELAY" downdelay
sysfs "$IF_BOND_ARP_INTERVAL" arp_interval
sysfs "$IF_BOND_ARP_VALIDATE" arp_validate
sysfs "$IF_BOND_FAIL_OVER_MAC" fail_over_mac
sysfs "$IF_BOND_XMIT_HASH_POLICY" xmit_hash_policy
sysfs "$IF_BOND_LACP_RATE" lacp_rate
sysfs_add "$IF_BOND_ARP_IP_TARGET" arp_ip_target
}
setup_slaves()
{
# The first slave in bond-primary found in current slaves becomes the primary.
# If no slave in bond-primary is found, then primary does not change.
for slave in $IF_BOND_PRIMARY ; do
if grep -sq "\\<$slave\\>" "/sys/class/net/$BOND_MASTER/bonding/slaves" ; then
sysfs "$slave" primary
break
fi
done
if [ "$IF_BOND_ACTIVE_SLAVE" ] ; then
# Need to force interface up before. Bonding will refuse to activate a down interface.
ip link set "$IF_BOND_ACTIVE_SLAVE" up
sysfs "$IF_BOND_ACTIVE_SLAVE" active_slave
fi
}
# Are there anything to do ?
# Option slaves deprecated, replaced by bond-slaves, but still supported for backward compatibility.
IF_BOND_SLAVES=${IF_BOND_SLAVES:-$IF_SLAVES}
if [ "$IF_BOND_MASTER" ] ; then
BOND_MASTER="$IF_BOND_MASTER"
BOND_SLAVES="$IFACE"
if ! [ -e /sys/class/net/$IFACE/master ]; then
ifup_once $BOND_MASTER
fi
else
if [ "$IF_BOND_SLAVES$IF_BOND_MODE" ]; then
BOND_MASTER="$IFACE"
BOND_SLAVES="$IF_BOND_SLAVES"
fi
fi
# Exit if nothing to do...
[ -z "$BOND_MASTER$BOND_SLAVES" ] && exit
add_master
setup_master
enslave_slaves
setup_slaves
|
