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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /tools/testing/selftests/bpf/progs/test_map_in_map.c | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/test_map_in_map.c')
-rw-r--r-- | tools/testing/selftests/bpf/progs/test_map_in_map.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/test_map_in_map.c b/tools/testing/selftests/bpf/progs/test_map_in_map.c new file mode 100644 index 000000000..f416032ba --- /dev/null +++ b/tools/testing/selftests/bpf/progs/test_map_in_map.c @@ -0,0 +1,50 @@ +// SPDX-License-Identifier: GPL-2.0 +/* Copyright (c) 2018 Facebook */ +#include <stddef.h> +#include <linux/bpf.h> +#include <linux/types.h> +#include <bpf/bpf_helpers.h> + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY_OF_MAPS); + __uint(max_entries, 1); + __uint(map_flags, 0); + __type(key, __u32); + __type(value, __u32); +} mim_array SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_HASH_OF_MAPS); + __uint(max_entries, 1); + __uint(map_flags, 0); + __type(key, int); + __type(value, __u32); +} mim_hash SEC(".maps"); + +SEC("xdp") +int xdp_mimtest0(struct xdp_md *ctx) +{ + int value = 123; + int *value_p; + int key = 0; + void *map; + + map = bpf_map_lookup_elem(&mim_array, &key); + if (!map) + return XDP_DROP; + + bpf_map_update_elem(map, &key, &value, 0); + value_p = bpf_map_lookup_elem(map, &key); + if (!value_p || *value_p != 123) + return XDP_DROP; + + map = bpf_map_lookup_elem(&mim_hash, &key); + if (!map) + return XDP_DROP; + + bpf_map_update_elem(map, &key, &value, 0); + + return XDP_PASS; +} + +char _license[] SEC("license") = "GPL"; |