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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 / trace_ext.c
1 // SPDX-License-Identifier: GPL-2.0
2
3 #define _GNU_SOURCE
4 #include <test_progs.h>
5 #include <network_helpers.h>
6 #include <sys/stat.h>
7 #include <linux/sched.h>
8 #include <sys/syscall.h>
9
10 #include "test_pkt_md_access.skel.h"
11 #include "test_trace_ext.skel.h"
12 #include "test_trace_ext_tracing.skel.h"
13
14 static __u32 duration;
15
16 void test_trace_ext(void)
17 {
18         struct test_pkt_md_access *skel_pkt = NULL;
19         struct test_trace_ext_tracing *skel_trace = NULL;
20         struct test_trace_ext_tracing__bss *bss_trace;
21         struct test_trace_ext *skel_ext = NULL;
22         struct test_trace_ext__bss *bss_ext;
23         int err, pkt_fd, ext_fd;
24         struct bpf_program *prog;
25         char buf[100];
26         __u64 len;
27         LIBBPF_OPTS(bpf_test_run_opts, topts,
28                 .data_in = &pkt_v4,
29                 .data_size_in = sizeof(pkt_v4),
30                 .repeat = 1,
31         );
32
33         /* open/load/attach test_pkt_md_access */
34         skel_pkt = test_pkt_md_access__open_and_load();
35         if (CHECK(!skel_pkt, "setup", "classifier/test_pkt_md_access open failed\n"))
36                 goto cleanup;
37
38         err = test_pkt_md_access__attach(skel_pkt);
39         if (CHECK(err, "setup", "classifier/test_pkt_md_access attach failed: %d\n", err))
40                 goto cleanup;
41
42         prog = skel_pkt->progs.test_pkt_md_access;
43         pkt_fd = bpf_program__fd(prog);
44
45         /* open extension */
46         skel_ext = test_trace_ext__open();
47         if (CHECK(!skel_ext, "setup", "freplace/test_pkt_md_access open failed\n"))
48                 goto cleanup;
49
50         /* set extension's attach target - test_pkt_md_access  */
51         prog = skel_ext->progs.test_pkt_md_access_new;
52         bpf_program__set_attach_target(prog, pkt_fd, "test_pkt_md_access");
53
54         /* load/attach extension */
55         err = test_trace_ext__load(skel_ext);
56         if (CHECK(err, "setup", "freplace/test_pkt_md_access load failed\n")) {
57                 libbpf_strerror(err, buf, sizeof(buf));
58                 fprintf(stderr, "%s\n", buf);
59                 goto cleanup;
60         }
61
62         err = test_trace_ext__attach(skel_ext);
63         if (CHECK(err, "setup", "freplace/test_pkt_md_access attach failed: %d\n", err))
64                 goto cleanup;
65
66         prog = skel_ext->progs.test_pkt_md_access_new;
67         ext_fd = bpf_program__fd(prog);
68
69         /* open tracing  */
70         skel_trace = test_trace_ext_tracing__open();
71         if (CHECK(!skel_trace, "setup", "tracing/test_pkt_md_access_new open failed\n"))
72                 goto cleanup;
73
74         /* set tracing's attach target - fentry */
75         prog = skel_trace->progs.fentry;
76         bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new");
77
78         /* set tracing's attach target - fexit */
79         prog = skel_trace->progs.fexit;
80         bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new");
81
82         /* load/attach tracing */
83         err = test_trace_ext_tracing__load(skel_trace);
84         if (!ASSERT_OK(err, "tracing/test_pkt_md_access_new load")) {
85                 libbpf_strerror(err, buf, sizeof(buf));
86                 fprintf(stderr, "%s\n", buf);
87                 goto cleanup;
88         }
89
90         err = test_trace_ext_tracing__attach(skel_trace);
91         if (!ASSERT_OK(err, "tracing/test_pkt_md_access_new attach"))
92                 goto cleanup;
93
94         /* trigger the test */
95         err = bpf_prog_test_run_opts(pkt_fd, &topts);
96         ASSERT_OK(err, "test_run_opts err");
97         ASSERT_OK(topts.retval, "test_run_opts retval");
98
99         bss_ext = skel_ext->bss;
100         bss_trace = skel_trace->bss;
101
102         len = bss_ext->ext_called;
103
104         ASSERT_NEQ(bss_ext->ext_called, 0,
105                   "failed to trigger freplace/test_pkt_md_access");
106         ASSERT_EQ(bss_trace->fentry_called, len,
107                   "failed to trigger fentry/test_pkt_md_access_new");
108         ASSERT_EQ(bss_trace->fexit_called, len,
109                    "failed to trigger fexit/test_pkt_md_access_new");
110
111 cleanup:
112         test_trace_ext_tracing__destroy(skel_trace);
113         test_trace_ext__destroy(skel_ext);
114         test_pkt_md_access__destroy(skel_pkt);
115 }
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