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	__u32 retval;
 27	__u64 len;
 28
 29	/* open/load/attach test_pkt_md_access */
 30	skel_pkt = test_pkt_md_access__open_and_load();
 31	if (CHECK(!skel_pkt, "setup", "classifier/test_pkt_md_access open failed\n"))
 32		goto cleanup;
 33
 34	err = test_pkt_md_access__attach(skel_pkt);
 35	if (CHECK(err, "setup", "classifier/test_pkt_md_access attach failed: %d\n", err))
 36		goto cleanup;
 37
 38	prog = skel_pkt->progs.test_pkt_md_access;
 39	pkt_fd = bpf_program__fd(prog);
 40
 41	/* open extension */
 42	skel_ext = test_trace_ext__open();
 43	if (CHECK(!skel_ext, "setup", "freplace/test_pkt_md_access open failed\n"))
 44		goto cleanup;
 45
 46	/* set extension's attach target - test_pkt_md_access  */
 47	prog = skel_ext->progs.test_pkt_md_access_new;
 48	bpf_program__set_attach_target(prog, pkt_fd, "test_pkt_md_access");
 49
 50	/* load/attach extension */
 51	err = test_trace_ext__load(skel_ext);
 52	if (CHECK(err, "setup", "freplace/test_pkt_md_access load failed\n")) {
 53		libbpf_strerror(err, buf, sizeof(buf));
 54		fprintf(stderr, "%s\n", buf);
 55		goto cleanup;
 56	}
 57
 58	err = test_trace_ext__attach(skel_ext);
 59	if (CHECK(err, "setup", "freplace/test_pkt_md_access attach failed: %d\n", err))
 60		goto cleanup;
 61
 62	prog = skel_ext->progs.test_pkt_md_access_new;
 63	ext_fd = bpf_program__fd(prog);
 64
 65	/* open tracing  */
 66	skel_trace = test_trace_ext_tracing__open();
 67	if (CHECK(!skel_trace, "setup", "tracing/test_pkt_md_access_new open failed\n"))
 68		goto cleanup;
 69
 70	/* set tracing's attach target - fentry */
 71	prog = skel_trace->progs.fentry;
 72	bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new");
 73
 74	/* set tracing's attach target - fexit */
 75	prog = skel_trace->progs.fexit;
 76	bpf_program__set_attach_target(prog, ext_fd, "test_pkt_md_access_new");
 77
 78	/* load/attach tracing */
 79	err = test_trace_ext_tracing__load(skel_trace);
 80	if (CHECK(err, "setup", "tracing/test_pkt_md_access_new load failed\n")) {
 81		libbpf_strerror(err, buf, sizeof(buf));
 82		fprintf(stderr, "%s\n", buf);
 83		goto cleanup;
 84	}
 85
 86	err = test_trace_ext_tracing__attach(skel_trace);
 87	if (CHECK(err, "setup", "tracing/test_pkt_md_access_new attach failed: %d\n", err))
 88		goto cleanup;
 89
 90	/* trigger the test */
 91	err = bpf_prog_test_run(pkt_fd, 1, &pkt_v4, sizeof(pkt_v4),
 92				NULL, NULL, &retval, &duration);
 93	CHECK(err || retval, "run", "err %d errno %d retval %d\n", err, errno, retval);
 94
 95	bss_ext = skel_ext->bss;
 96	bss_trace = skel_trace->bss;
 97
 98	len = bss_ext->ext_called;
 99
100	CHECK(bss_ext->ext_called == 0,
101		"check", "failed to trigger freplace/test_pkt_md_access\n");
102	CHECK(bss_trace->fentry_called != len,
103		"check", "failed to trigger fentry/test_pkt_md_access_new\n");
104	CHECK(bss_trace->fexit_called != len,
105		"check", "failed to trigger fexit/test_pkt_md_access_new\n");
106
107cleanup:
108	test_trace_ext_tracing__destroy(skel_trace);
109	test_trace_ext__destroy(skel_ext);
110	test_pkt_md_access__destroy(skel_pkt);
111}