basic functional test, triggering the msk diag interface
code. Require appropriate iproute2 support, skip elsewhere.
Reviewed-by: Mat Martineau <mathew.j.martin...@linux.intel.com>
Signed-off-by: Paolo Abeni <pab...@redhat.com>
---
tools/testing/selftests/net/mptcp/Makefile | 2 +-
tools/testing/selftests/net/mptcp/diag.sh | 122 ++++++++++++++++++
.../selftests/net/mptcp/mptcp_connect.c | 22 +++-
3 files changed, 141 insertions(+), 5 deletions(-)
create mode 100755 tools/testing/selftests/net/mptcp/diag.sh
diff --git a/tools/testing/selftests/net/mptcp/Makefile
b/tools/testing/selftests/net/mptcp/Makefile
index f50976ee7d44..aa254aefc2c3 100644
--- a/tools/testing/selftests/net/mptcp/Makefile
+++ b/tools/testing/selftests/net/mptcp/Makefile
@@ -5,7 +5,7 @@ KSFT_KHDR_INSTALL := 1
CFLAGS = -Wall -Wl,--no-as-needed -O2 -g -I$(top_srcdir)/usr/include
-TEST_PROGS := mptcp_connect.sh pm_netlink.sh mptcp_join.sh
+TEST_PROGS := mptcp_connect.sh pm_netlink.sh mptcp_join.sh diag.sh
TEST_GEN_FILES = mptcp_connect pm_nl_ctl
diff --git a/tools/testing/selftests/net/mptcp/diag.sh
b/tools/testing/selftests/net/mptcp/diag.sh
new file mode 100755
index 000000000000..b3eee7ede18a
--- /dev/null
+++ b/tools/testing/selftests/net/mptcp/diag.sh
@@ -0,0 +1,122 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+rndh=$(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
+
diff --git a/tools/testing/selftests/net/mptcp/mptcp_connect.c
b/tools/testing/selftests/net/mptcp/mptcp_connect.c
index cedee5b952ba..cad6f73a5fd0 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -11,6 +11,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <strings.h>
+#include <signal.h>
#include <unistd.h>
#include <sys/poll.h>
@@ -36,6 +37,7 @@ extern int optind;
static int poll_timeout = 10 * 1000;
static bool listen_mode;
+static bool quit;
enum cfg_mode {
CFG_MODE_POLL,
@@ -52,11 +54,12 @@ static int pf = AF_INET;
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");
@@ -65,9 +68,15 @@ static void die_usage(void)
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)
@@ -418,8 +427,8 @@ static int copyfd_io_poll(int infd, int peerfd, int outfd)
}
/* leave some time for late join/announce */
- if (cfg_join)
- usleep(400000);
+ if (cfg_wait)
+ usleep(cfg_wait);
close(peerfd);
return 0;
@@ -812,11 +821,12 @@ static void parse_opts(int argc, char **argv)
{
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;
@@ -850,6 +860,9 @@ static void parse_opts(int argc, char **argv)
case 'R':
cfg_rcvbuf = parse_int(optarg);
break;
+ case 'w':
+ cfg_wait = atoi(optarg)*1000000;
+ break;
}
}
@@ -865,6 +878,7 @@ int main(int argc, char *argv[])
{
init_rng();
+ signal(SIGUSR1, handle_signal);
parse_opts(argc, argv);
if (tcpulp_audit)
--
2.26.2
