1// SPDX-License-Identifier: GPL-2.0
2#include <test_progs.h>
3#include <network_helpers.h>
4
5#include "test_pkt_access.skel.h"
6
7static const __u32 duration;
8
9static void check_run_cnt(int prog_fd, __u64 run_cnt)
10{
11	struct bpf_prog_info info = {};
12	__u32 info_len = sizeof(info);
13	int err;
14
15	err = bpf_prog_get_info_by_fd(prog_fd, &info, &info_len);
16	if (CHECK(err, "get_prog_info", "failed to get bpf_prog_info for fd %d\n", prog_fd))
17		return;
18
19	CHECK(run_cnt != info.run_cnt, "run_cnt",
20	      "incorrect number of repetitions, want %llu have %llu\n", run_cnt, info.run_cnt);
21}
22
23void test_prog_run_opts(void)
24{
25	struct test_pkt_access *skel;
26	int err, stats_fd = -1, prog_fd;
27	char buf[10] = {};
28	__u64 run_cnt = 0;
29
30	LIBBPF_OPTS(bpf_test_run_opts, topts,
31		.repeat = 1,
32		.data_in = &pkt_v4,
33		.data_size_in = sizeof(pkt_v4),
34		.data_out = buf,
35		.data_size_out = 5,
36	);
37
38	stats_fd = bpf_enable_stats(BPF_STATS_RUN_TIME);
39	if (!ASSERT_GE(stats_fd, 0, "enable_stats good fd"))
40		return;
41
42	skel = test_pkt_access__open_and_load();
43	if (!ASSERT_OK_PTR(skel, "open_and_load"))
44		goto cleanup;
45
46	prog_fd = bpf_program__fd(skel->progs.test_pkt_access);
47
48	err = bpf_prog_test_run_opts(prog_fd, &topts);
49	ASSERT_EQ(errno, ENOSPC, "test_run errno");
50	ASSERT_ERR(err, "test_run");
51	ASSERT_OK(topts.retval, "test_run retval");
52
53	ASSERT_EQ(topts.data_size_out, sizeof(pkt_v4), "test_run data_size_out");
54	ASSERT_EQ(buf[5], 0, "overflow, BPF_PROG_TEST_RUN ignored size hint");
55
56	run_cnt += topts.repeat;
57	check_run_cnt(prog_fd, run_cnt);
58
59	topts.data_out = NULL;
60	topts.data_size_out = 0;
61	topts.repeat = 2;
62	errno = 0;
63
64	err = bpf_prog_test_run_opts(prog_fd, &topts);
65	ASSERT_OK(errno, "run_no_output errno");
66	ASSERT_OK(err, "run_no_output err");
67	ASSERT_OK(topts.retval, "run_no_output retval");
68
69	run_cnt += topts.repeat;
70	check_run_cnt(prog_fd, run_cnt);
71
72cleanup:
73	if (skel)
74		test_pkt_access__destroy(skel);
75	if (stats_fd >= 0)
76		close(stats_fd);
77}
78