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bpf/flow_dissector: support ipv6 flow_label and BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL

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Add support for exporting ipv6 flow label via bpf_flow_keys.
Export flow label from bpf_flow.c and also return early when
BPF_FLOW_DISSECTOR_F_STOP_AT_FLOW_LABEL is passed.

Acked-by: Petar Penkov <ppenkov@google.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Petar Penkov <ppenkov@google.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Stanislav Fomichev
2019-07-25 15:52:30 -07:00
committed by Andrii Nakryiko
parent c59016e100
commit 84a508a51f
1 changed files with 1 additions and 0 deletions
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include/uapi/linux/bpf.h
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@@ -3530,6 +3530,7 @@ struct bpf_flow_keys {
}; };
}; };
__u32 flags; __u32 flags;
__be32 flow_label;
}; };
struct bpf_func_info { struct bpf_func_info {