-
Notifications
You must be signed in to change notification settings - Fork 10
/
createvcan.sh
executable file
·70 lines (56 loc) · 1.65 KB
/
createvcan.sh
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
#!/bin/bash
########################################################################
# Copyright (c) 2020 Robert Bosch GmbH
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# SPDX-License-Identifier: Apache-2.0
########################################################################
#
# Set up virtual can device "elmcan" as sink
# for the elm2canbridge
#
#Default dev, can be overridden by commandline
DEV=elmcan
if [ -n "$1" ]
then
DEV=$1
fi
echo "createvcan: Preparing to bring up vcan interface $DEV"
virtualCanConfigure() {
echo "createvcan: Setting up VIRTUAL CAN"
sudo modprobe -n --first-time vcan &> /dev/null
loadmod=$?
if [ $loadmod -eq 0 ]
then
echo "createvcan: Virtual CAN module not yet loaded. Loading......"
sudo modprobe vcan
fi
ifconfig "$DEV" &> /dev/null
noif=$?
if [ $noif -eq 1 ]
then
echo "createvcan: Virtual CAN interface not yet existing. Creating..."
sudo ip link add dev "$DEV" type vcan
fi
sudo ip link set "$DEV" up
}
#If up?
up=$(ifconfig "$DEV" 2> /dev/null | grep NOARP | grep -c RUNNING)
if [ $up -eq 1 ]
then
echo "createvcan: Interface already up. Exiting"
exit
fi
virtualCanConfigure
echo "createvcan: Done."