LXR linux/tools/testing/selftests/bpf/prog_tests/fentry

   1// SPDX-License-Identifier: GPL-2.0
   2/* Copyright (c) 2019 Facebook */
   3#include <test_progs.h>
   4#include "test_pkt_access.skel.h"
   5#include "fentry_test.skel.h"
   6#include "fexit_test.skel.h"
   7
   8void test_fentry_fexit(void)
   9{
  10        struct test_pkt_access *pkt_skel = NULL;
  11        struct fentry_test *fentry_skel = NULL;
  12        struct fexit_test *fexit_skel = NULL;
  13        __u64 *fentry_res, *fexit_res;
  14        __u32 duration = 0, retval;
  15        int err, pkt_fd, i;
  16
  17        pkt_skel = test_pkt_access__open_and_load();
  18        if (CHECK(!pkt_skel, "pkt_skel_load", "pkt_access skeleton failed\n"))
  19                return;
  20        fentry_skel = fentry_test__open_and_load();
  21        if (CHECK(!fentry_skel, "fentry_skel_load", "fentry skeleton failed\n"))
  22                goto close_prog;
  23        fexit_skel = fexit_test__open_and_load();
  24        if (CHECK(!fexit_skel, "fexit_skel_load", "fexit skeleton failed\n"))
  25                goto close_prog;
  26
  27        err = fentry_test__attach(fentry_skel);
  28        if (CHECK(err, "fentry_attach", "fentry attach failed: %d\n", err))
  29                goto close_prog;
  30        err = fexit_test__attach(fexit_skel);
  31        if (CHECK(err, "fexit_attach", "fexit attach failed: %d\n", err))
  32                goto close_prog;
  33
  34        pkt_fd = bpf_program__fd(pkt_skel->progs.test_pkt_access);
  35        err = bpf_prog_test_run(pkt_fd, 1, &pkt_v6, sizeof(pkt_v6),
  36                                NULL, NULL, &retval, &duration);
  37        CHECK(err || retval, "ipv6",
  38              "err %d errno %d retval %d duration %d\n",
  39              err, errno, retval, duration);
  40
  41        fentry_res = (__u64 *)fentry_skel->bss;
  42        fexit_res = (__u64 *)fexit_skel->bss;
  43        printf("%lld\n", fentry_skel->bss->test1_result);
  44        for (i = 0; i < 6; i++) {
  45                CHECK(fentry_res[i] != 1, "result",
  46                      "fentry_test%d failed err %lld\n", i + 1, fentry_res[i]);
  47                CHECK(fexit_res[i] != 1, "result",
  48                      "fexit_test%d failed err %lld\n", i + 1, fexit_res[i]);
  49        }
  50
  51close_prog:
  52        test_pkt_access__destroy(pkt_skel);
  53        fentry_test__destroy(fentry_skel);
  54        fexit_test__destroy(fexit_skel);
  55}
  56