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}