tools/testing/selftests/bpf/prog_tests/skb_helpers.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <test_progs.h>
   3 #include <network_helpers.h>
   4
   5 void test_skb_helpers(void)
   6 {
   7         struct __sk_buff skb = {
   8                 .wire_len = 100,
   9                 .gso_segs = 8,
  10                 .gso_size = 10,
  11         };
  12         struct bpf_prog_test_run_attr tattr = {
  13                 .data_in = &pkt_v4,
  14                 .data_size_in = sizeof(pkt_v4),
  15                 .ctx_in = &skb,
  16                 .ctx_size_in = sizeof(skb),
  17                 .ctx_out = &skb,
  18                 .ctx_size_out = sizeof(skb),
  19         };
  20         struct bpf_object *obj;
  21         int err;
  22
  23         err = bpf_prog_load("./test_skb_helpers.o", BPF_PROG_TYPE_SCHED_CLS, &obj,
  24                             &tattr.prog_fd);
  25         if (CHECK_ATTR(err, "load", "err %d errno %d\n", err, errno))
  26                 return;
  27         err = bpf_prog_test_run_xattr(&tattr);
  28         CHECK_ATTR(err, "len", "err %d errno %d\n", err, errno);
  29         bpf_object__close(obj);
  30 }