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-rw-r--r--tools/include/uapi/linux/bpf.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h
index 37dffe5089a0..2e29a671d67e 100644
--- a/tools/include/uapi/linux/bpf.h
+++ b/tools/include/uapi/linux/bpf.h
@@ -112,6 +112,7 @@ enum bpf_cmd {
BPF_MAP_UPDATE_BATCH,
BPF_MAP_DELETE_BATCH,
BPF_LINK_CREATE,
+ BPF_LINK_UPDATE,
};
enum bpf_map_type {
@@ -577,6 +578,17 @@ union bpf_attr {
__u32 attach_type; /* attach type */
__u32 flags; /* extra flags */
} link_create;
+
+ struct { /* struct used by BPF_LINK_UPDATE command */
+ __u32 link_fd; /* link fd */
+ /* new program fd to update link with */
+ __u32 new_prog_fd;
+ __u32 flags; /* extra flags */
+ /* expected link's program fd; is specified only if
+ * BPF_F_REPLACE flag is set in flags */
+ __u32 old_prog_fd;
+ } link_update;
+
} __attribute__((aligned(8)));
/* The description below is an attempt at providing documentation to eBPF