b1b53d413f
Add selftests to test access to map pointers from bpf program for all map types except struct_ops (that one would need additional work). verifier test focuses mostly on scenarios that must be rejected. prog_tests test focuses on accessing multiple fields both scalar and a nested struct from bpf program and verifies that those fields have expected values. Signed-off-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: John Fastabend <john.fastabend@gmail.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Link: https://lore.kernel.org/bpf/139a6a17f8016491e39347849b951525335c6eb4.1592600985.git.rdna@fb.com
33 lines
752 B
C
33 lines
752 B
C
// SPDX-License-Identifier: GPL-2.0
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// Copyright (c) 2020 Facebook
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#include <test_progs.h>
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#include <network_helpers.h>
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#include "map_ptr_kern.skel.h"
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void test_map_ptr(void)
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{
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struct map_ptr_kern *skel;
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__u32 duration = 0, retval;
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char buf[128];
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int err;
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skel = map_ptr_kern__open_and_load();
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if (CHECK(!skel, "skel_open_load", "open_load failed\n"))
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return;
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err = bpf_prog_test_run(bpf_program__fd(skel->progs.cg_skb), 1, &pkt_v4,
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sizeof(pkt_v4), buf, NULL, &retval, NULL);
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if (CHECK(err, "test_run", "err=%d errno=%d\n", err, errno))
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goto cleanup;
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if (CHECK(!retval, "retval", "retval=%d map_type=%u line=%u\n", retval,
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skel->bss->g_map_type, skel->bss->g_line))
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goto cleanup;
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cleanup:
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map_ptr_kern__destroy(skel);
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}
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