406c557edc
Add recursive non-sleepable fentry program as a test. All attach points where sleepable progs can execute are non recursive so far. The recursion protection mechanism for sleepable cannot be activated yet. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210210033634.62081-6-alexei.starovoitov@gmail.com
34 lines
944 B
C
34 lines
944 B
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2021 Facebook */
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#include <test_progs.h>
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#include "recursion.skel.h"
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void test_recursion(void)
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{
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struct recursion *skel;
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int key = 0;
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int err;
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skel = recursion__open_and_load();
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if (!ASSERT_OK_PTR(skel, "skel_open_and_load"))
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return;
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err = recursion__attach(skel);
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if (!ASSERT_OK(err, "skel_attach"))
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goto out;
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ASSERT_EQ(skel->bss->pass1, 0, "pass1 == 0");
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bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash1), &key, 0);
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ASSERT_EQ(skel->bss->pass1, 1, "pass1 == 1");
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bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash1), &key, 0);
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ASSERT_EQ(skel->bss->pass1, 2, "pass1 == 2");
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ASSERT_EQ(skel->bss->pass2, 0, "pass2 == 0");
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bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash2), &key, 0);
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ASSERT_EQ(skel->bss->pass2, 1, "pass2 == 1");
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bpf_map_lookup_elem(bpf_map__fd(skel->maps.hash2), &key, 0);
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ASSERT_EQ(skel->bss->pass2, 2, "pass2 == 2");
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out:
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recursion__destroy(skel);
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}
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