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// SPDX-License-Identifier: GPL-2.0
#include <test_progs.h>
#include <linux/btf.h>
#include "netif_receive_skb.skel.h"
/* Demonstrate that bpf_snprintf_btf succeeds and that various data types
* are formatted correctly.
*/
void test_snprintf_btf(void)
{
struct netif_receive_skb *skel;
struct netif_receive_skb__bss *bss;
int err, duration = 0;
skel = netif_receive_skb__open();
if (CHECK(!skel, "skel_open", "failed to open skeleton\n"))
return;
err = netif_receive_skb__load(skel);
if (CHECK(err, "skel_load", "failed to load skeleton: %d\n", err))
goto cleanup;
bss = skel->bss;
err = netif_receive_skb__attach(skel);
if (CHECK(err, "skel_attach", "skeleton attach failed: %d\n", err))
goto cleanup;
/* generate receive event */
err = system("ping -c 1 127.0.0.1 > /dev/null");
if (CHECK(err, "system", "ping failed: %d\n", err))
goto cleanup;
if (bss->skip) {
printf("%s:SKIP:no __builtin_btf_type_id\n", __func__);
test__skip();
goto cleanup;
}
/*
* Make sure netif_receive_skb program was triggered
* and it set expected return values from bpf_trace_printk()s
* and all tests ran.
*/
if (CHECK(bss->ret <= 0,
"bpf_snprintf_btf: got return value",
"ret <= 0 %ld test %d\n", bss->ret, bss->ran_subtests))
goto cleanup;
if (CHECK(bss->ran_subtests == 0, "check if subtests ran",
"no subtests ran, did BPF program run?"))
goto cleanup;
if (CHECK(bss->num_subtests != bss->ran_subtests,
"check all subtests ran",
"only ran %d of %d tests\n", bss->num_subtests,
bss->ran_subtests))
goto cleanup;
cleanup:
netif_receive_skb__destroy(skel);
}
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