]> Git Repo - J-linux.git/blob - tools/testing/selftests/bpf/prog_tests/prog_run_opts.c
Merge tag 'vfs-6.13-rc7.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
[J-linux.git] / tools / testing / selftests / bpf / prog_tests / prog_run_opts.c
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
7 static const __u32 duration;
8
9 static 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
23 void 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
72 cleanup:
73         if (skel)
74                 test_pkt_access__destroy(skel);
75         if (stats_fd >= 0)
76                 close(stats_fd);
77 }
This page took 0.030993 seconds and 4 git commands to generate.