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authorStanislav Fomichev <sdf@google.com>2019-04-22 08:55:44 -0700
committerDaniel Borkmann <daniel@iogearbox.net>2019-04-23 18:36:33 +0200
commit089b19a9204fc090793d389a265f54124eacb05d (patch)
tree66e9a7497cc7c7444866bda214ea14bd6b66f1ae /usr
parent7e6e185c74dd8a8dc539300c079adc6bc27045d6 (diff)
flow_dissector: switch kernel context to struct bpf_flow_dissector
struct bpf_flow_dissector has a small subset of sk_buff fields that flow dissector BPF program is allowed to access and an optional pointer to real skb. Real skb is used only in bpf_skb_load_bytes helper to read non-linear data. The real motivation for this is to be able to call flow dissector from eth_get_headlen context where we don't have an skb and need to dissect raw bytes. Signed-off-by: Stanislav Fomichev <sdf@google.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'usr')
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