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| author |   Stanislav Fomichev <sdf@google.com> | 2019-04-01 13:57:31 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-04-03 16:49:48 +0200 |
| commit | 822fe61795018265ae14731d4e5399e5bde36864 (patch) | |
| tree | 46a279c48db0fef4326e864ffc60df9146c99e19 /net/core/flow_dissector.c | |
| parent | selftests/bpf: fix vlan handling in flow dissector program (diff) | |
| download | linux-dev-822fe61795018265ae14731d4e5399e5bde36864.tar.xz linux-dev-822fe61795018265ae14731d4e5399e5bde36864.zip | |
net/flow_dissector: pass flow_keys->n_proto to BPF programs
This is a preparation for the next commit that would prohibit access to
the most fields of __sk_buff from the BPF programs.
Instead of requiring BPF flow dissector programs to look into skb,
pass all input data in the flow_keys.
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'net/core/flow_dissector.c')
| -rw-r--r-- | net/core/flow_dissector.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index bb1a54747d64..9b84250039df 100644 --- a/net/core/flow_dissector.c +++ b/net/core/flow_dissector.c @@ -707,6 +707,7 @@ bool __skb_flow_bpf_dissect(struct bpf_prog *prog, /* Pass parameters to the BPF program */ memset(flow_keys, 0, sizeof(*flow_keys)); cb->qdisc_cb.flow_keys = flow_keys; + flow_keys->n_proto = skb->protocol; flow_keys->nhoff = skb_network_offset(skb); flow_keys->thoff = flow_keys->nhoff; |