--- /dev/null
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+rndh=$(printf %x $sec)-$(mktemp -u XXXXXX)
+ns="ns1-$rndh"
+ksft_skip=4
+test_cnt=1
+ret=0
+pids=()
+
+flush_pids()
+{
+ # mptcp_connect in join mode will sleep a bit before completing,
+ # give it some time
+ sleep 1.1
+
+ for pid in ${pids[@]}; do
+ [ -d /proc/$pid ] && kill -SIGUSR1 $pid >/dev/null 2>&1
+ done
+ pids=()
+}
+
+cleanup()
+{
+ ip netns del $ns
+ for pid in ${pids[@]}; do
+ [ -d /proc/$pid ] && kill -9 $pid >/dev/null 2>&1
+ done
+}
+
+ip -Version > /dev/null 2>&1
+if [ $? -ne 0 ];then
+ echo "SKIP: Could not run test without ip tool"
+ exit $ksft_skip
+fi
+ss -h | grep -q MPTCP
+if [ $? -ne 0 ];then
+ echo "SKIP: ss tool does not support MPTCP"
+ exit $ksft_skip
+fi
+
+__chk_nr()
+{
+ local condition="$1"
+ local expected=$2
+ local msg nr
+
+ shift 2
+ msg=$*
+ nr=$(ss -inmHMN $ns | $condition)
+
+ printf "%-50s" "$msg"
+ if [ $nr != $expected ]; then
+ echo "[ fail ] expected $expected found $nr"
+ ret=$test_cnt
+ else
+ echo "[ ok ]"
+ fi
+ test_cnt=$((test_cnt+1))
+}
+
+chk_msk_nr()
+{
+ __chk_nr "grep -c token:" $*
+}
+
+chk_msk_fallback_nr()
+{
+ __chk_nr "grep -c fallback" $*
+}
+
+chk_msk_remote_key_nr()
+{
+ __chk_nr "grep -c remote_key" $*
+}
+
+
+trap cleanup EXIT
+ip netns add $ns
+ip -n $ns link set dev lo up
+
+echo "a" | ip netns exec $ns ./mptcp_connect -p 10000 -l 0.0.0.0 -t 100 >/dev/null &
+sleep 0.1
+pids[0]=$!
+chk_msk_nr 0 "no msk on netns creation"
+
+echo "b" | ip netns exec $ns ./mptcp_connect -p 10000 127.0.0.1 -j -t 100 >/dev/null &
+sleep 0.1
+pids[1]=$!
+chk_msk_nr 2 "after MPC handshake "
+chk_msk_remote_key_nr 2 "....chk remote_key"
+chk_msk_fallback_nr 0 "....chk no fallback"
+flush_pids
+
+
+echo "a" | ip netns exec $ns ./mptcp_connect -p 10001 -s TCP -l 0.0.0.0 -t 100 >/dev/null &
+pids[0]=$!
+sleep 0.1
+echo "b" | ip netns exec $ns ./mptcp_connect -p 10001 127.0.0.1 -j -t 100 >/dev/null &
+pids[1]=$!
+sleep 0.1
+chk_msk_fallback_nr 1 "check fallback"
+flush_pids
+
+NR_CLIENTS=100
+for I in `seq 1 $NR_CLIENTS`; do
+ echo "a" | ip netns exec $ns ./mptcp_connect -p $((I+10001)) -l 0.0.0.0 -t 100 -w 10 >/dev/null &
+ pids[$((I*2))]=$!
+done
+sleep 0.1
+
+for I in `seq 1 $NR_CLIENTS`; do
+ echo "b" | ip netns exec $ns ./mptcp_connect -p $((I+10001)) 127.0.0.1 -t 100 -w 10 >/dev/null &
+ pids[$((I*2 + 1))]=$!
+done
+sleep 1.5
+
+chk_msk_nr $((NR_CLIENTS*2)) "many msk socket present"
+flush_pids
+
+exit $ret
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
+#include <signal.h>
#include <unistd.h>
#include <sys/poll.h>
static int poll_timeout = 10 * 1000;
static bool listen_mode;
+static bool quit;
enum cfg_mode {
CFG_MODE_POLL,
static int cfg_sndbuf;
static int cfg_rcvbuf;
static bool cfg_join;
+static int cfg_wait;
static void die_usage(void)
{
fprintf(stderr, "Usage: mptcp_connect [-6] [-u] [-s MPTCP|TCP] [-p port] [-m mode]"
- "[-l] connect_address\n");
+ "[-l] [-w sec] connect_address\n");
fprintf(stderr, "\t-6 use ipv6\n");
fprintf(stderr, "\t-t num -- set poll timeout to num\n");
fprintf(stderr, "\t-S num -- set SO_SNDBUF to num\n");
fprintf(stderr, "\t-m [MPTCP|TCP] -- use tcp or mptcp sockets\n");
fprintf(stderr, "\t-s [mmap|poll] -- use poll (default) or mmap\n");
fprintf(stderr, "\t-u -- check mptcp ulp\n");
+ fprintf(stderr, "\t-w num -- wait num sec before closing the socket\n");
exit(1);
}
+static void handle_signal(int nr)
+{
+ quit = true;
+}
+
static const char *getxinfo_strerr(int err)
{
if (err == EAI_SYSTEM)
}
/* leave some time for late join/announce */
- if (cfg_join)
- usleep(400000);
+ if (cfg_wait)
+ usleep(cfg_wait);
close(peerfd);
return 0;
{
int c;
- while ((c = getopt(argc, argv, "6jlp:s:hut:m:S:R:")) != -1) {
+ while ((c = getopt(argc, argv, "6jlp:s:hut:m:S:R:w:")) != -1) {
switch (c) {
case 'j':
cfg_join = true;
cfg_mode = CFG_MODE_POLL;
+ cfg_wait = 400000;
break;
case 'l':
listen_mode = true;
case 'R':
cfg_rcvbuf = parse_int(optarg);
break;
+ case 'w':
+ cfg_wait = atoi(optarg)*1000000;
+ break;
}
}
{
init_rng();
+ signal(SIGUSR1, handle_signal);
parse_opts(argc, argv);
if (tcpulp_audit)