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add tap and br mode

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primardj 2024-02-01 01:14:01 +00:00
parent 9948fa24a0
commit 72d1cbd2f5
1 changed files with 30 additions and 3 deletions
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33
set-tap.sh
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@ -19,12 +19,36 @@ PARAMETTER available
OPTION available
--bridge-id=<bridge-id> Set the name for the new bridge interface, usually it is br0, br1, etc
--tap-id=<tap-id> Set the tap id. Usually it is tap0, tap1, tap2, etc
--addr=<address> Set an external address on the bridge. The external address have to be on the same network as one of the host network interface. e.g. if eth0, wlan0, etc is on 192.168.0.2/24, you should put the address on the network 192.168.0.0/24. Please not that the CIDR notation have to be use.
--addr=<address> Set an external address on the bridge. The external address have to be on the same network as one of the host network interface. e.g. if eth0, wlan0, etc is on 192.168.0.2/24, you should put the address on the network 192.168.0.0/24. Please not that the CIDR notation have to be use. #TODO
--replace=<interface> In case you want to replace the main connexion of your computer so that only the vm will be able to reach the external network, replace interface by the interface you want to replace, and make sure that the --addr is set to one of the ip on the interace. Please not that it will be possible for your host to lost all connection to the external internet with this parametter.
"
Version="1.0"
main() {
echo "Enter main function."
echo "add bridge interface ${bridge}"
read -p "use ctrl-C to cancel, or any other key to continue." jaaj
${rooter} ip link add ${bridge} type bridge
echo "add tap interface ${tap}"
read -p "use ctrl-C to cancel, or any other key to continue." jaaj
${rooter} ip tuntap add dev ${tap} mode tap
echo "link bridge ${bridge} to tap ${tap}"
read -p "use ctrl-C to cancel, or any other key to continue." jaaj
${rooter} ip link set dev ${tap} master ${bridge}
echo "no interface to link with bridge ${bridge}"
#$rooter ip link set dev wlan0 master br0
echo "activate ${bridge}"
read -p "use ctrl-C to cancel, or any other key to continue." jaaj
$rooter ip link set dev ${bridge} up
}
# detect the parametters
for i in $@; do
case "$i" in
@ -67,6 +91,7 @@ for i in $@; do
done
if [ "${bridge}" == "" ] || [ "${tap}" == "" ]
then
echo "Error, --bridge-id and --tap-id have to be both specified to make the tap address" >&2
exit
fi
@ -75,11 +100,11 @@ fi
# check if sudo is installed
if which doas &> /dev/null
then
echo "doas is installed"
echo "use doas"
rooter=$(which doas)
elif which sudo &> /dev/null
then
echo "sudo is installed"
echo "use sudo"
rooter=$(which sudo)
else
echo "no command to give access to root is given. Abandon" >&2
@ -87,3 +112,5 @@ else
fi
main