59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2019 Facebook */
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#include <test_progs.h>
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#include "fentry_test.lskel.h"
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static int fentry_test(struct fentry_test_lskel *fentry_skel)
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{
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int err, prog_fd, i;
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int link_fd;
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__u64 *result;
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LIBBPF_OPTS(bpf_test_run_opts, topts);
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err = fentry_test_lskel__attach(fentry_skel);
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if (!ASSERT_OK(err, "fentry_attach"))
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return err;
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/* Check that already linked program can't be attached again. */
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link_fd = fentry_test_lskel__test1__attach(fentry_skel);
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if (!ASSERT_LT(link_fd, 0, "fentry_attach_link"))
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return -1;
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prog_fd = fentry_skel->progs.test1.prog_fd;
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err = bpf_prog_test_run_opts(prog_fd, &topts);
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ASSERT_OK(err, "test_run");
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ASSERT_EQ(topts.retval, 0, "test_run");
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result = (__u64 *)fentry_skel->bss;
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for (i = 0; i < sizeof(*fentry_skel->bss) / sizeof(__u64); i++) {
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if (!ASSERT_EQ(result[i], 1, "fentry_result"))
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return -1;
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}
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fentry_test_lskel__detach(fentry_skel);
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/* zero results for re-attach test */
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memset(fentry_skel->bss, 0, sizeof(*fentry_skel->bss));
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return 0;
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}
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void test_fentry_test(void)
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{
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struct fentry_test_lskel *fentry_skel = NULL;
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int err;
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fentry_skel = fentry_test_lskel__open_and_load();
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if (!ASSERT_OK_PTR(fentry_skel, "fentry_skel_load"))
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goto cleanup;
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err = fentry_test(fentry_skel);
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if (!ASSERT_OK(err, "fentry_first_attach"))
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goto cleanup;
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err = fentry_test(fentry_skel);
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ASSERT_OK(err, "fentry_second_attach");
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cleanup:
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fentry_test_lskel__destroy(fentry_skel);
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}
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