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11d1e2eeff
Add sanity test for BPF trampoline that checks kernel functions with up to 6 arguments of different sizes. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Song Liu <songliubraving@fb.com> Link: https://lore.kernel.org/bpf/20191114185720.1641606-10-ast@kernel.org
90 lines
1.5 KiB
C
90 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2019 Facebook */
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#include <linux/bpf.h>
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#include "bpf_helpers.h"
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char _license[] SEC("license") = "GPL";
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struct test1 {
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ks32 a;
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};
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static volatile __u64 test1_result;
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SEC("fentry/bpf_fentry_test1")
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int test1(struct test1 *ctx)
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{
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test1_result = ctx->a == 1;
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return 0;
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}
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struct test2 {
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ks32 a;
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ku64 b;
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};
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static volatile __u64 test2_result;
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SEC("fentry/bpf_fentry_test2")
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int test2(struct test2 *ctx)
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{
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test2_result = ctx->a == 2 && ctx->b == 3;
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return 0;
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}
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struct test3 {
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ks8 a;
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ks32 b;
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ku64 c;
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};
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static volatile __u64 test3_result;
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SEC("fentry/bpf_fentry_test3")
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int test3(struct test3 *ctx)
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{
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test3_result = ctx->a == 4 && ctx->b == 5 && ctx->c == 6;
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return 0;
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}
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struct test4 {
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void *a;
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ks8 b;
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ks32 c;
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ku64 d;
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};
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static volatile __u64 test4_result;
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SEC("fentry/bpf_fentry_test4")
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int test4(struct test4 *ctx)
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{
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test4_result = ctx->a == (void *)7 && ctx->b == 8 && ctx->c == 9 &&
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ctx->d == 10;
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return 0;
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}
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struct test5 {
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ku64 a;
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void *b;
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ks16 c;
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ks32 d;
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ku64 e;
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};
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static volatile __u64 test5_result;
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SEC("fentry/bpf_fentry_test5")
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int test5(struct test5 *ctx)
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{
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test5_result = ctx->a == 11 && ctx->b == (void *)12 && ctx->c == 13 &&
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ctx->d == 14 && ctx->e == 15;
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return 0;
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}
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struct test6 {
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ku64 a;
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void *b;
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ks16 c;
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ks32 d;
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void *e;
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ks64 f;
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};
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static volatile __u64 test6_result;
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SEC("fentry/bpf_fentry_test6")
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int test6(struct test6 *ctx)
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{
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test6_result = ctx->a == 16 && ctx->b == (void *)17 && ctx->c == 18 &&
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ctx->d == 19 && ctx->e == (void *)20 && ctx->f == 21;
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return 0;
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}
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