mirror of
https://passt.top/passt
synced 2024-11-05 20:31:11 +00:00
70 lines
1.9 KiB
Bash
70 lines
1.9 KiB
Bash
|
#!/bin/sh -e
|
||
|
|
#
|
||
|
|
# SPDX-License-Identifier: AGPL-3.0-or-later
|
||
|
|
#
|
||
|
|
# PASST - Plug A Simple Socket Transport
|
||
|
|
#
|
||
|
|
# demo.sh - Set up namespaces, addresses and routes to show PASST functionality
|
||
|
|
#
|
||
|
|
# Copyright (c) 2020-2021 Red Hat GmbH
|
||
|
|
# Author: Stefano Brivio <sbrivio@redhat.com>
|
||
|
|
|
||
|
|
get_token() {
|
||
|
|
IFS=' '
|
||
|
|
__next=0
|
||
|
|
for __token in ${@}; do
|
||
|
|
[ ${__next} -eq 2 ] && echo "${__token}" && return
|
||
|
|
[ "${__token}" = "${1}" ] && __next=$((__next + 1))
|
||
|
|
done
|
||
|
|
unset IFS
|
||
|
|
}
|
||
|
|
|
||
|
|
ipv6_dev() { get_token "dev" $(ip -o -6 ro show default); }
|
||
|
|
ipv6_devaddr() { get_token "inet6" $(ip -o -6 ad sh dev "${1}" scope global); }
|
||
|
|
ipv6_ll_addr() { get_token "inet6" $(ip -o -6 ad sh dev "${1}" scope link); }
|
||
|
|
ipv6_mask() { echo ${1#*/}; }
|
||
|
|
ipv6_mangle() {
|
||
|
|
IFS=':'
|
||
|
|
__c=0
|
||
|
|
for __16b in ${1%%/*}; do
|
||
|
|
if [ ${__c} -lt 7 ]; then
|
||
|
|
printf "${__16b}:"
|
||
|
|
else
|
||
|
|
printf "abcd\n" && break
|
||
|
|
fi
|
||
|
|
__c=$((__c + 1))
|
||
|
|
done
|
||
|
|
unset IFS
|
||
|
|
}
|
||
|
|
|
||
|
|
ndp_setup() {
|
||
|
|
sysctl -w net.ipv6.conf.all.proxy_ndp=1
|
||
|
|
ip -6 neigh add proxy "${1}" dev "$(ipv6_dev)"
|
||
|
|
}
|
||
|
|
|
||
|
|
ip netns del passt 2>/dev/null || :
|
||
|
|
ip link del veth_passt 2>/dev/null || :
|
||
|
|
ip netns add passt
|
||
|
|
ip link add veth_passt up netns passt type veth peer name veth_passt
|
||
|
|
ip link set dev veth_passt up
|
||
|
|
|
||
|
|
ip -n passt addr add 192.0.2.2/24 dev veth_passt
|
||
|
|
ip addr add 192.0.2.1/24 dev veth_passt
|
||
|
|
ip -n passt route add default via 192.0.2.1
|
||
|
|
|
||
|
|
ipv6_addr="$(ipv6_devaddr "$(ipv6_dev)")"
|
||
|
|
ipv6_passt="$(ipv6_mangle "${ipv6_addr}")"
|
||
|
|
ndp_setup "${ipv6_passt}"
|
||
|
|
ip -n passt addr add "${ipv6_passt}/$(ipv6_mask "${ipv6_addr}")" dev veth_passt
|
||
|
|
ip addr add "${ipv6_addr}" dev veth_passt
|
||
|
|
passt_ll="$(ipv6_ll_addr "veth_passt")"
|
||
|
|
main_ll="$(get_token "link/ether" $(ip -o li sh veth_passt))"
|
||
|
|
ip -n passt neigh add "${passt_ll%%/*}" dev veth_passt lladdr "${main_ll}"
|
||
|
|
ip -n passt route add default via "${passt_ll%%/*}" dev veth_passt
|
||
|
|
|
||
|
|
ethtool -K veth_passt tx off
|
||
|
|
ip netns exec passt ethtool -K veth_passt tx off
|
||
|
|
ulimit -n 300000
|
||
|
|
|
||
|
|
ip netns exec passt ./passt
|