xref: /linux/tools/testing/selftests/bpf/prog_tests/ptr_untrusted.c (revision c532de5a67a70f8533d495f8f2aaa9a0491c3ad0)
1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2023 Yafang Shao <laoar.shao@gmail.com> */
3 
4 #include <string.h>
5 #include <linux/bpf.h>
6 #include <test_progs.h>
7 #include "test_ptr_untrusted.skel.h"
8 
9 #define TP_NAME "sched_switch"
10 
11 void serial_test_ptr_untrusted(void)
12 {
13 	struct test_ptr_untrusted *skel;
14 	int err;
15 
16 	skel = test_ptr_untrusted__open_and_load();
17 	if (!ASSERT_OK_PTR(skel, "skel_open"))
18 		goto cleanup;
19 
20 	/* First, attach lsm prog */
21 	skel->links.lsm_run = bpf_program__attach_lsm(skel->progs.lsm_run);
22 	if (!ASSERT_OK_PTR(skel->links.lsm_run, "lsm_attach"))
23 		goto cleanup;
24 
25 	/* Second, attach raw_tp prog. The lsm prog will be triggered. */
26 	skel->links.raw_tp_run = bpf_program__attach_raw_tracepoint(skel->progs.raw_tp_run,
27 								    TP_NAME);
28 	if (!ASSERT_OK_PTR(skel->links.raw_tp_run, "raw_tp_attach"))
29 		goto cleanup;
30 
31 	err = strncmp(skel->bss->tp_name, TP_NAME, strlen(TP_NAME));
32 	ASSERT_EQ(err, 0, "cmp_tp_name");
33 
34 cleanup:
35 	test_ptr_untrusted__destroy(skel);
36 }
37