@@ -1,9 +1,11 @@
// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2020, Tessares SA. */
+#include <sys/param.h>
#include <test_progs.h>
#include "cgroup_helpers.h"
#include "network_helpers.h"
+#include "mptcp_bpf_first.skel.h"
#ifndef TCP_CA_NAME_MAX
#define TCP_CA_NAME_MAX 16
@@ -19,6 +21,8 @@ struct mptcp_storage {
};
static char monitor_log_path[64];
+static const unsigned int total_bytes = 10 * 1024 * 1024;
+static int stop, duration;
static int verify_tsk(int map_fd, int client_fd)
{
@@ -251,8 +255,117 @@ void test_base(void)
close(cgroup_fd);
}
+static void *server(void *arg)
+{
+ int lfd = (int)(long)arg, err = 0, fd;
+ ssize_t nr_sent = 0, bytes = 0;
+ char batch[1500];
+
+ fd = accept(lfd, NULL, NULL);
+ while (fd == -1) {
+ if (errno == EINTR)
+ continue;
+ err = -errno;
+ goto done;
+ }
+
+ if (settimeo(fd, 0)) {
+ err = -errno;
+ goto done;
+ }
+
+ while (bytes < total_bytes && !READ_ONCE(stop)) {
+ nr_sent = send(fd, &batch,
+ MIN(total_bytes - bytes, sizeof(batch)), 0);
+ if (nr_sent == -1 && errno == EINTR)
+ continue;
+ if (nr_sent == -1) {
+ err = -errno;
+ break;
+ }
+ bytes += nr_sent;
+ }
+
+ CHECK(bytes != total_bytes, "send", "%zd != %u nr_sent:%zd errno:%d\n",
+ bytes, total_bytes, nr_sent, errno);
+
+done:
+ if (fd >= 0)
+ close(fd);
+ if (err) {
+ WRITE_ONCE(stop, 1);
+ return ERR_PTR(err);
+ }
+ return NULL;
+}
+
+static void send_data(int lfd, int fd)
+{
+ ssize_t nr_recv = 0, bytes = 0;
+ pthread_t srv_thread;
+ void *thread_ret;
+ char batch[1500];
+ int err;
+
+ WRITE_ONCE(stop, 0);
+
+ err = pthread_create(&srv_thread, NULL, server, (void *)(long)lfd);
+ if (CHECK(err != 0, "pthread_create", "err:%d errno:%d\n", err, errno))
+ return;
+
+ /* recv total_bytes */
+ while (bytes < total_bytes && !READ_ONCE(stop)) {
+ nr_recv = recv(fd, &batch,
+ MIN(total_bytes - bytes, sizeof(batch)), 0);
+ if (nr_recv == -1 && errno == EINTR)
+ continue;
+ if (nr_recv == -1)
+ break;
+ bytes += nr_recv;
+ }
+
+ CHECK(bytes != total_bytes, "recv", "%zd != %u nr_recv:%zd errno:%d\n",
+ bytes, total_bytes, nr_recv, errno);
+
+ WRITE_ONCE(stop, 1);
+
+ pthread_join(srv_thread, &thread_ret);
+ CHECK(IS_ERR(thread_ret), "pthread_join", "thread_ret:%ld",
+ PTR_ERR(thread_ret));
+}
+
+static void test_first(void)
+{
+ struct mptcp_bpf_first *first_skel;
+ int server_fd, client_fd;
+ struct bpf_link *link;
+
+ first_skel = mptcp_bpf_first__open_and_load();
+ if (CHECK(!first_skel, "bpf_first__open_and_load", "failed\n"))
+ return;
+
+ link = bpf_map__attach_struct_ops(first_skel->maps.first);
+ if (!ASSERT_OK_PTR(link, "bpf_map__attach_struct_ops")) {
+ mptcp_bpf_first__destroy(first_skel);
+ return;
+ }
+
+ system("sysctl -q net.mptcp.scheduler=bpf_first");
+ server_fd = start_mptcp_server(AF_INET, NULL, 0, 0);
+ client_fd = connect_to_mptcp_fd(server_fd, 0);
+
+ send_data(server_fd, client_fd);
+
+ close(client_fd);
+ close(server_fd);
+ bpf_link__destroy(link);
+ mptcp_bpf_first__destroy(first_skel);
+}
+
void test_mptcp(void)
{
if (test__start_subtest("base"))
test_base();
+ if (test__start_subtest("first"))
+ test_first();
}
This patch expends the MPTCP test base to support MPTCP packet scheduler tests. Add the bpf_first scheduler test in it. Use sysctl to set net.mptcp.scheduler to use this sched. Some code in send_data() is from prog_tests/bpf_tcp_ca.c. Signed-off-by: Geliang Tang <geliang.tang@suse.com> --- .../testing/selftests/bpf/prog_tests/mptcp.c | 113 ++++++++++++++++++ 1 file changed, 113 insertions(+)