962bc97cf1
Otherwise, buffers for UNIX domain sockets are limited to about 200KB. This makes performance testing a bit more consistent. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
88 lines
2.4 KiB
Bash
Executable file
88 lines
2.4 KiB
Bash
Executable file
#!/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 "$(ipv6_dev)"
|
|
}
|
|
|
|
ip netns del passt 2>/dev/null || :
|
|
ip link del veth_passt 2>/dev/null || :
|
|
ip netns add passt
|
|
ip link add veth_passt up netns passt type veth peer name veth_passt
|
|
ip link set dev veth_passt up
|
|
ip -n passt link set dev lo up
|
|
|
|
|
|
ip -n passt addr add 192.0.2.2/24 dev veth_passt
|
|
ip addr add 192.0.2.1/24 dev veth_passt
|
|
ip -n passt route add default via 192.0.2.1
|
|
|
|
sysctl -w net.ipv4.ip_forward=1
|
|
nft delete table passt_nat 2>/dev/null || :
|
|
nft add table passt_nat
|
|
nft 'add chain passt_nat postrouting { type nat hook postrouting priority -100 ; }'
|
|
nft add rule passt_nat postrouting ip saddr 192.0.2.2 masquerade
|
|
|
|
ipv6_addr="$(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
|
|
ip route add "${ipv6_passt}" dev veth_passt
|
|
passt_ll="$(ipv6_ll_addr "veth_passt")"
|
|
main_ll="$(get_token "link/ether" $(ip -o li sh veth_passt))"
|
|
ip neigh add "${passt_ll%%/*}" dev veth_passt lladdr "${main_ll}"
|
|
ip -n passt route add default via "${passt_ll%%/*}" dev veth_passt
|
|
|
|
sysctl -w net.ipv6.conf.all.forwarding=1
|
|
|
|
|
|
ethtool -K veth_passt tx off
|
|
ip netns exec passt ethtool -K veth_passt tx off
|
|
ip netns exec passt sysctl -w net.ipv4.ping_group_range="0 2147483647"
|
|
|
|
|
|
sysctl -w net.core.rmem_max=16777216
|
|
sysctl -w net.core.wmem_max=16777216
|
|
sysctl -w net.core.rmem_default=16777216
|
|
sysctl -w net.core.wmem_default=16777216
|
|
|
|
|
|
ip netns exec passt ./passt
|