blob: 2ad0644c9bcc3fca99291be49d7b685d1ba9b63d (
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
224
225
226
227
228
229
|
#!/bin/sh
: ${FAKE_IP_STATE:=${PWD}/var/fake-ip-state}
not_implemented ()
{
echo "ip stub command: \"$1\" not implemented"
exit 127
}
######################################################################
ip_link ()
{
case "$2" in
set)
# iface="$3"
case "$4" in
up) ip_link_set_up "$@" ;;
down) ip_link_down_up "$@" ;;
*) not_implemented "$*" ;;
esac
;;
*) not_implemented "$*" ;;
esac
}
ip_link_set_up ()
{
rm -f "${FAKE_IP_STATE}/interfaces-down/$3"
}
ip_link_set_down ()
{
mkdir -p "${FAKE_IP_STATE}/interfaces-down"
touch "${FAKE_IP_STATE}/interfaces-down/$3"
}
######################################################################
ip_addr ()
{
case "$2" in
show|list|"") ip_addr_show "$@" ;;
add*) ip_addr_add "$@" ;;
del*) ip_addr_del "$@" ;;
*) not_implemented "$*" ;;
esac
}
ip_addr_show ()
{
_args="$*"
shift 2
dev=""
primary=true
secondary=true
while [ -n "$1" ] ; do
case "$1" in
dev)
dev="$2" ; shift 2
;;
# Do stupid things and stupid things will happen!
primary)
primary=true ; secondary=false ; shift
;;
secondary)
secondary=true ; primary=false ; shift
;;
*)
# Assume an interface name
dev="$1" ; shift 1
esac
done
devices="$dev"
if [ -z "$devices" ] ; then
# No device specified? Get all the primaries...
devices=$(ls "${FAKE_IP_STATE}/addresses/"*-primary 2>/dev/null | \
sed -e 's@.*/@@' -e 's@-primary$@@')
fi
calc_brd ()
{
case "${local#*/}" in
24)
brd="${local%.*}.255"
;;
*)
not_implemented "list ... fake bits other than 24: ${local#*/}"
esac
}
show_iface()
{
pf="${FAKE_IP_STATE}/addresses/${dev}-primary"
sf="${FAKE_IP_STATE}/addresses/${dev}-secondary"
mac=$(echo $dev | md5sum | sed -r -e 's@(..)(..)(..)(..)(..)(..).*@\1:\2:\3:\4:\5:\6@')
cat <<EOF
${n}: ${dev}: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP qlen 1000
link/ether ${mac} brd ff:ff:ff:ff:ff:ff
EOF
if $primary && [ -r "$pf" ] ; then
read local <"$pf"
calc_brd
cat <<EOF
inet ${local} brd ${brd} scope global ${dev}
EOF
fi
if $secondary && [ -r "$sf" ] ; then
while read local ; do
calc_brd
cat <<EOF
inet ${local} brd ${brd} scope global secondary ${dev}
EOF
done <"$sf"
fi
cat <<EOF
valid_lft forever preferred_lft forever
EOF
}
n=1
for dev in $devices ; do
show_iface
n=$(($n + 1))
done
}
ip_addr_add ()
{
_args="$*"
shift 2
local=""
dev=""
brd=""
while [ -n "$1" ] ; do
case "$1" in
*.*.*.*/*)
local="$1" ; shift
;;
local)
local="$2" ; shift 2
;;
broadcast|brd)
# For now assume this is always '+'.
if [ "$2" != "+" ] ; then
not_implemented "addr add ... brd $2 ..."
fi
shift 2
;;
dev)
dev="$2" ; shift 2
;;
*)
not_implemented "$@"
esac
done
if [ -z "$dev" ] ; then
not_implemented "addr add (without dev)"
fi
mkdir -p "${FAKE_IP_STATE}/addresses"
pf="${FAKE_IP_STATE}/addresses/${dev}-primary"
sf="${FAKE_IP_STATE}/addresses/${dev}-secondary"
# We could lock here... but we should be the only ones playing
# around here with these stubs.
if [ ! -f "$pf" ] ; then
echo "$local" >"$pf"
elif grep -Fq "$local" "$pf" ; then
echo "RTNETLINK answers: File exists" >&2
exit 254
elif [ -f "$sf" ] && grep -Fq "$local" "$sf" ; then
echo "RTNETLINK answers: File exists" >&2
exit 254
else
echo "$local" >>"$sf"
fi
}
ip_addr_del ()
{
shift 2
local=""
dev=""
while [ -n "$1" ] ; do
case "$1" in
*.*.*.*/*)
local="$1" ; shift
;;
local)
local="$2" ; shift 2
;;
dev)
dev="$2" ; shift 2
;;
*)
not_implemented "addr del ... $1 ..."
esac
done
if [ -z "$dev" ] ; then
not_implemented "addr del (without dev)"
fi
mkdir -p "${FAKE_IP_STATE}/addresses"
pf="${FAKE_IP_STATE}/addresses/${dev}-primary"
sf="${FAKE_IP_STATE}/addresses/${dev}-secondary"
# We could lock here... but we should be the only ones playing
# around here with these stubs.
if [ ! -f "$pf" ] ; then
echo "RTNETLINK answers: Cannot assign requested address" >&2
exit 254
elif grep -Fq "$local" "$pf" ; then
# Remove primaries AND SECONDARIES.
rm -f "$pf" "$sf"
elif [ -f "$sf" ] && grep -Fq "$local" "$sf" ; then
grep -Fv "$local" "$sf" >"${sf}.new"
mv "${sf}.new" "$sf"
else
echo "RTNETLINK answers: Cannot assign requested address" >&2
exit 254
fi
}
######################################################################
case "$1" in
link) ip_link "$@" ;;
addr*) ip_addr "$@" ;;
*) not_implemented "$1" ;;
esac
exit 0
|
