1// SPDX-License-Identifier: GPL-2.0
 2/* Copyright (c) 2019 Facebook */
 3#include <test_progs.h>
 4#include "fexit_test.lskel.h"
 5
 6static int fexit_test(struct fexit_test *fexit_skel)
 7{
 8	int err, prog_fd, i;
 9	__u32 duration = 0, retval;
10	int link_fd;
11	__u64 *result;
12
13	err = fexit_test__attach(fexit_skel);
14	if (!ASSERT_OK(err, "fexit_attach"))
15		return err;
16
17	/* Check that already linked program can't be attached again. */
18	link_fd = fexit_test__test1__attach(fexit_skel);
19	if (!ASSERT_LT(link_fd, 0, "fexit_attach_link"))
20		return -1;
21
22	prog_fd = fexit_skel->progs.test1.prog_fd;
23	err = bpf_prog_test_run(prog_fd, 1, NULL, 0,
24				NULL, NULL, &retval, &duration);
25	ASSERT_OK(err, "test_run");
26	ASSERT_EQ(retval, 0, "test_run");
27
28	result = (__u64 *)fexit_skel->bss;
29	for (i = 0; i < sizeof(*fexit_skel->bss) / sizeof(__u64); i++) {
30		if (!ASSERT_EQ(result[i], 1, "fexit_result"))
31			return -1;
32	}
33
34	fexit_test__detach(fexit_skel);
35
36	/* zero results for re-attach test */
37	memset(fexit_skel->bss, 0, sizeof(*fexit_skel->bss));
38	return 0;
39}
40
41void test_fexit_test(void)
42{
43	struct fexit_test *fexit_skel = NULL;
44	int err;
45
46	fexit_skel = fexit_test__open_and_load();
47	if (!ASSERT_OK_PTR(fexit_skel, "fexit_skel_load"))
48		goto cleanup;
49
50	err = fexit_test(fexit_skel);
51	if (!ASSERT_OK(err, "fexit_first_attach"))
52		goto cleanup;
53
54	err = fexit_test(fexit_skel);
55	ASSERT_OK(err, "fexit_second_attach");
56
57cleanup:
58	fexit_test__destroy(fexit_skel);
59}