diff options
Diffstat (limited to 'tools/testing/selftests/net/sample_map_ret0.bpf.c')
-rw-r--r-- | tools/testing/selftests/net/sample_map_ret0.bpf.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/sample_map_ret0.bpf.c b/tools/testing/selftests/net/sample_map_ret0.bpf.c new file mode 100644 index 000000000000..43ca92594926 --- /dev/null +++ b/tools/testing/selftests/net/sample_map_ret0.bpf.c @@ -0,0 +1,34 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) */ +#include <linux/bpf.h> +#include <bpf/bpf_helpers.h> + +struct { + __uint(type, BPF_MAP_TYPE_HASH); + __type(key, __u32); + __type(value, long); + __uint(max_entries, 2); +} htab SEC(".maps"); + +struct { + __uint(type, BPF_MAP_TYPE_ARRAY); + __type(key, __u32); + __type(value, long); + __uint(max_entries, 2); +} array SEC(".maps"); + +/* Sample program which should always load for testing control paths. */ +SEC("xdp") int func() +{ + __u64 key64 = 0; + __u32 key = 0; + long *value; + + value = bpf_map_lookup_elem(&htab, &key); + if (!value) + return 1; + value = bpf_map_lookup_elem(&array, &key64); + if (!value) + return 1; + + return 0; +} |