1// SPDX-License-Identifier: GPL-2.0
2#include <test_progs.h>
3#include <linux/btf.h>
4#include "netif_receive_skb.skel.h"
5
6/* Demonstrate that bpf_snprintf_btf succeeds and that various data types
7 * are formatted correctly.
8 */
9void serial_test_snprintf_btf(void)
10{
11	struct netif_receive_skb *skel;
12	struct netif_receive_skb__bss *bss;
13	int err, duration = 0;
14
15	skel = netif_receive_skb__open();
16	if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
17		return;
18
19	err = netif_receive_skb__load(skel);
20	if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
21		goto cleanup;
22
23	bss = skel->bss;
24
25	err = netif_receive_skb__attach(skel);
26	if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
27		goto cleanup;
28
29	/* generate receive event */
30	err = system("ping -c 1 127.0.0.1 > /dev/null");
31	if (CHECK(err, "system", "ping failed: %d\n", err))
32		goto cleanup;
33
34	if (bss->skip) {
35		printf("%s:SKIP:no __builtin_btf_type_id\n", __func__);
36		test__skip();
37		goto cleanup;
38	}
39
40	/*
41	 * Make sure netif_receive_skb program was triggered
42	 * and it set expected return values from bpf_trace_printk()s
43	 * and all tests ran.
44	 */
45	if (!ASSERT_GT(bss->ret, 0, "bpf_snprintf_ret"))
46		goto cleanup;
47
48	if (CHECK(bss->ran_subtests == 0, "check if subtests ran",
49		  "no subtests ran, did BPF program run?"))
50		goto cleanup;
51
52	if (CHECK(bss->num_subtests != bss->ran_subtests,
53		  "check all subtests ran",
54		  "only ran %d of %d tests\n", bss->num_subtests,
55		  bss->ran_subtests))
56		goto cleanup;
57
58cleanup:
59	netif_receive_skb__destroy(skel);
60}
61