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1// SPDX-License-Identifier: GPL-2.02#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 types7 * 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 triggered42 * and it set expected return values from bpf_trace_printk()s43 * 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