blob: 7097a4ddc918261a7db7b8513ecb2bd3525db790 (
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
|
# Copyright (c) 2007-2008 Roy Marples <roy@marples.name>
# Released under the 2-clause BSD license.
bonding_depend()
{
before interface macchanger
}
_config_vars="$_config_vars slaves"
_is_bond()
{
[ -f "/proc/net/bonding/${IFACE}" ]
}
bonding_pre_start()
{
local x= s= n= slaves= primary=
slaves="$(_get_array "slaves_${IFVAR}")"
unset slaves_${IFVAR}
eval primary="\$primary_${IFVAR}"
unset primary_${IFVAR}
[ -z "${slaves}" ] && return 0
# Load the kernel module if required
if [ ! -d /proc/net/bonding ]; then
if ! modprobe bonding; then
eerror "Cannot load the bonding module"
return 1
fi
fi
# We can create the interface name we like now, but this
# requires sysfs
if ! _exists && [ -d /sys/class/net ]; then
echo "+${IFACE}" > /sys/class/net/bonding_masters
fi
_exists true || return 1
if ! _is_bond; then
eerror "${IFACE} is not capable of bonding"
return 1
fi
# Interface must be down in order to configure
_down
# Configure the bond mode, then we can reloop to ensure we configure
# All other options
for x in /sys/class/net/"${IFACE}"/bonding/mode; do
[ -f "${x}" ] || continue
n=${x##*/}
eval s=\$${n}_${IFVAR}
if [ -n "${s}" ]; then
einfo "Setting ${n}: ${s}"
echo "${s}" >"${x}" || \
eerror "Failed to configure $n (${n}_${IFVAR})"
fi
done
# Nice and dynamic for remaining options:)
for x in /sys/class/net/"${IFACE}"/bonding/*; do
[ -f "${x}" ] || continue
n=${x##*/}
eval s=\$${n}_${IFVAR}
[ "${n}" != "mode" ] || continue
if [ -n "${s}" ]; then
einfo "Setting ${n}: ${s}"
echo "${s}" >"${x}" || \
eerror "Failed to configure $n (${n}_${IFVAR})"
fi
done
ebegin "Adding slaves to ${IFACE}"
eindent
einfo "${slaves}"
# Check that our slaves exist
(
for IFACE in ${slaves}; do
_exists true || return 1
done
# Must force the slaves to a particular state before adding them
for IFACE in ${slaves}; do
_delete_addresses
_down
done
)
# now force the master to up
_up
# finally add in slaves
# things needed in the process, and if they are done by ifenslave, openrc, and/or the kernel.
# down new slave interface: ifenslave, openrc
# set mtu: ifenslave, kernel
# set slave MAC: ifenslave, kernel
eoutdent
if [ -d /sys/class/net ]; then
sys_bonding_path=/sys/class/net/"${IFACE}"/bonding
local oiface
oiface=$IFACE
if [ -n "${primary}" ]; then
IFACE=$primary
_down
IFACE=$oiface
echo "+${primary}" >$sys_bonding_path/slaves
echo "${primary}" >$sys_bonding_path/primary
fi
for s in ${slaves}; do
[ "${s}" = "${primary}" ] && continue
if ! grep -q ${s} $sys_bonding_path/slaves; then
IFACE=$s
_down
IFACE=$oiface
echo "+${s}" >$sys_bonding_path/slaves
fi
done
else
/sbin/ifenslave "${IFACE}" ${slaves} >/dev/null
fi
eend $?
return 0 #important
}
bonding_stop()
{
_is_bond || return 0
local slaves= s=
slaves=$( \
sed -n -e 's/^Slave Interface: //p' "/proc/net/bonding/${IFACE}" \
| tr '\n' ' ' \
)
[ -z "${slaves}" ] && return 0
# remove all slaves
ebegin "Removing slaves from ${IFACE}"
eindent
einfo "${slaves}"
eoutdent
if [ -d /sys/class/net ]; then
for s in ${slaves}; do
echo -"${s}" > /sys/class/net/"${IFACE}"/bonding/slaves
done
else
/sbin/ifenslave -d "${IFACE}" ${slaves}
fi
# reset all slaves
(
for IFACE in ${slaves}; do
if _exists; then
_delete_addresses
_down
fi
done
)
_down
if [ -d /sys/class/net ]; then
echo "-${IFACE}" > /sys/class/net/bonding_masters
fi
eend 0
return 0
}
|
