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

   1 // SPDX-License-Identifier: GPL-2.0
   2 /* Copyright (C) 2023 Yafang Shao <[email protected]> */
   3
   4 #include <string.h>
   5 #include <linux/bpf.h>
   6 #include <test_progs.h>
   7 #include "test_ptr_untrusted.skel.h"
   8
   9 #define TP_NAME "sched_switch"
  10
  11 void serial_test_ptr_untrusted(void)
  12 {
  13         struct test_ptr_untrusted *skel;
  14         int err;
  15
  16         skel = test_ptr_untrusted__open_and_load();
  17         if (!ASSERT_OK_PTR(skel, "skel_open"))
  18                 goto cleanup;
  19
  20         /* First, attach lsm prog */
  21         skel->links.lsm_run = bpf_program__attach_lsm(skel->progs.lsm_run);
  22         if (!ASSERT_OK_PTR(skel->links.lsm_run, "lsm_attach"))
  23                 goto cleanup;
  24
  25         /* Second, attach raw_tp prog. The lsm prog will be triggered. */
  26         skel->links.raw_tp_run = bpf_program__attach_raw_tracepoint(skel->progs.raw_tp_run,
  27                                                                     TP_NAME);
  28         if (!ASSERT_OK_PTR(skel->links.raw_tp_run, "raw_tp_attach"))
  29                 goto cleanup;
  30
  31         err = strncmp(skel->bss->tp_name, TP_NAME, strlen(TP_NAME));
  32         ASSERT_EQ(err, 0, "cmp_tp_name");
  33
  34 cleanup:
  35         test_ptr_untrusted__destroy(skel);
  36 }