bd368cb554
Change map definitions in BPF selftests to use BTF-defined key/value types. This unifies the map definitions and ensures libbpf won't emit warning about retrying map creation. Signed-off-by: Hengqi Chen <hengqi.chen@gmail.com> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20210930161456.3444544-3-hengqi.chen@gmail.com
52 lines
1.0 KiB
C
52 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright (c) 2018 Facebook */
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#include <stddef.h>
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#include <linux/bpf.h>
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#include <linux/types.h>
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#include <bpf/bpf_helpers.h>
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struct {
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__uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS);
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__uint(max_entries, 1);
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__uint(map_flags, 0);
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__type(key, __u32);
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__type(value, __u32);
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} mim_array SEC(".maps");
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struct {
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__uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
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__uint(max_entries, 1);
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__uint(map_flags, 0);
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__type(key, int);
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__type(value, __u32);
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} mim_hash SEC(".maps");
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SEC("xdp")
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int xdp_mimtest0(struct xdp_md *ctx)
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{
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int value = 123;
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int *value_p;
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int key = 0;
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void *map;
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map = bpf_map_lookup_elem(&mim_array, &key);
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if (!map)
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return XDP_DROP;
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bpf_map_update_elem(map, &key, &value, 0);
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value_p = bpf_map_lookup_elem(map, &key);
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if (!value_p || *value_p != 123)
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return XDP_DROP;
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map = bpf_map_lookup_elem(&mim_hash, &key);
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if (!map)
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return XDP_DROP;
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bpf_map_update_elem(map, &key, &value, 0);
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return XDP_PASS;
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}
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int _version SEC("version") = 1;
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char _license[] SEC("license") = "GPL";
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