Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4NR_FILES=32768
5readonly NETNS="ns-$(mktemp -u XXXXXX)"
6
7# default values
8port=443
9addr_v6="2001:0db8:0:f101::1"
10addr_v4="10.8.8.8"
11use_v6=true
12addr=""
13
14usage() {
15 echo "Usage: $0 [-6 | -4] [-p port] [-a address]"
16 echo -e "\t6: use ipv6"
17 echo -e "\t4: use ipv4"
18 echo -e "\tport: Port number"
19 echo -e "\taddress: ip address"
20}
21
22while getopts "ha:p:64" opt; do
23 case ${opt} in
24 h)
25 usage $0
26 exit 0
27 ;;
28 a) addr=$OPTARG;;
29 p)
30 port=$OPTARG;;
31 6)
32 use_v6=true;;
33 4)
34 use_v6=false;;
35 esac
36done
37
38setup() {
39 ip netns add "${NETNS}"
40 ip -netns "${NETNS}" link add veth0 type veth peer name veth1
41 ip -netns "${NETNS}" link set lo up
42 ip -netns "${NETNS}" link set veth0 up
43 ip -netns "${NETNS}" link set veth1 up
44
45 if [[ "$use_v6" == true ]]; then
46 ip -netns "${NETNS}" addr add $addr_v6 nodad dev veth0
47 else
48 ip -netns "${NETNS}" addr add $addr_v4 dev lo
49 fi
50}
51
52cleanup() {
53 ip netns del "${NETNS}"
54}
55
56if [[ "$addr" != "" ]]; then
57 addr_v4=$addr;
58 addr_v6=$addr;
59fi
60setup
61if [[ "$use_v6" == true ]] ; then
62 ip netns exec "${NETNS}" sh -c \
63 "ulimit -n ${NR_FILES};./bind_bhash ${port} ipv6 ${addr_v6}"
64else
65 ip netns exec "${NETNS}" sh -c \
66 "ulimit -n ${NR_FILES};./bind_bhash ${port} ipv4 ${addr_v4}"
67fi
68cleanup