skb_load_bytes.c (1144B)
1// SPDX-License-Identifier: GPL-2.0 2#include <test_progs.h> 3#include <network_helpers.h> 4#include "skb_load_bytes.skel.h" 5 6void test_skb_load_bytes(void) 7{ 8 struct skb_load_bytes *skel; 9 int err, prog_fd, test_result; 10 struct __sk_buff skb = { 0 }; 11 12 LIBBPF_OPTS(bpf_test_run_opts, tattr, 13 .data_in = &pkt_v4, 14 .data_size_in = sizeof(pkt_v4), 15 .ctx_in = &skb, 16 .ctx_size_in = sizeof(skb), 17 ); 18 19 skel = skb_load_bytes__open_and_load(); 20 if (!ASSERT_OK_PTR(skel, "skel_open_and_load")) 21 return; 22 23 prog_fd = bpf_program__fd(skel->progs.skb_process); 24 if (!ASSERT_GE(prog_fd, 0, "prog_fd")) 25 goto out; 26 27 skel->bss->load_offset = (uint32_t)(-1); 28 err = bpf_prog_test_run_opts(prog_fd, &tattr); 29 if (!ASSERT_OK(err, "bpf_prog_test_run_opts")) 30 goto out; 31 test_result = skel->bss->test_result; 32 if (!ASSERT_EQ(test_result, -EFAULT, "offset -1")) 33 goto out; 34 35 skel->bss->load_offset = (uint32_t)10; 36 err = bpf_prog_test_run_opts(prog_fd, &tattr); 37 if (!ASSERT_OK(err, "bpf_prog_test_run_opts")) 38 goto out; 39 test_result = skel->bss->test_result; 40 if (!ASSERT_EQ(test_result, 0, "offset 10")) 41 goto out; 42 43out: 44 skb_load_bytes__destroy(skel); 45}