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
14static __u32 duration;
15
16void 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
111cleanup:
112	test_trace_ext_tracing__destroy(skel_trace);
113	test_trace_ext__destroy(skel_ext);
114	test_pkt_md_access__destroy(skel_pkt);
115}
116