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authorJohannes Berg <[email protected]>2024-10-09 08:59:14 +0200
committerJohannes Berg <[email protected]>2024-10-09 08:59:22 +0200
commita0efa2f362a69e47b9d8b48f770ef3a0249a7911 (patch)
tree384d2c79a9b613213ef7591583d820d18c7be9c3 /tools/testing/selftests/bpf/progs/mmap_inner_array.c
parentdb03488897a70367aeafe82d07a78943d2a6068e (diff)
parent36efaca9cb28a893cad98f0448c39a8b698859e2 (diff)
Merge net-next/main to resolve conflicts
The wireless-next tree was based on something older, and there are now conflicts between -rc2 and work here. Merge net-next, which has enough of -rc2 for the conflicts to happen, resolving them in the process. Signed-off-by: Johannes Berg <[email protected]>
Diffstat (limited to 'tools/testing/selftests/bpf/progs/mmap_inner_array.c')
-rw-r--r--tools/testing/selftests/bpf/progs/mmap_inner_array.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/progs/mmap_inner_array.c b/tools/testing/selftests/bpf/progs/mmap_inner_array.c
new file mode 100644
index 000000000000..90aacbc2938a
--- /dev/null
+++ b/tools/testing/selftests/bpf/progs/mmap_inner_array.c
@@ -0,0 +1,57 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) 2024 Meta Platforms, Inc. and affiliates. */
+
+#include "vmlinux.h"
+#include <bpf/bpf_helpers.h>
+
+#include "bpf_misc.h"
+
+char _license[] SEC("license") = "GPL";
+
+struct inner_array_type {
+ __uint(type, BPF_MAP_TYPE_ARRAY);
+ __uint(map_flags, BPF_F_MMAPABLE);
+ __type(key, __u32);
+ __type(value, __u64);
+ __uint(max_entries, 1);
+} inner_array SEC(".maps");
+
+struct {
+ __uint(type, BPF_MAP_TYPE_HASH_OF_MAPS);
+ __uint(key_size, 4);
+ __uint(value_size, 4);
+ __uint(max_entries, 1);
+ __array(values, struct inner_array_type);
+} outer_map SEC(".maps");
+
+int pid = 0;
+__u64 match_value = 0x13572468;
+bool done = false;
+bool pid_match = false;
+bool outer_map_match = false;
+
+SEC("fentry/" SYS_PREFIX "sys_nanosleep")
+int add_to_list_in_inner_array(void *ctx)
+{
+ __u32 curr_pid, zero = 0;
+ struct bpf_map *map;
+ __u64 *value;
+
+ curr_pid = (u32)bpf_get_current_pid_tgid();
+ if (done || curr_pid != pid)
+ return 0;
+
+ pid_match = true;
+ map = bpf_map_lookup_elem(&outer_map, &curr_pid);
+ if (!map)
+ return 0;
+
+ outer_map_match = true;
+ value = bpf_map_lookup_elem(map, &zero);
+ if (!value)
+ return 0;
+
+ *value = match_value;
+ done = true;
+ return 0;
+}