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| author | David S. Miller <davem@davemloft.net> | 2019-04-04 13:30:55 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-04-04 13:30:55 -0700 |
| commit | 5ba578011702f7872509794e70b92ee12bcf433c (patch) | |
| tree | 87e79df40fce43f301ab2ada7cc46d4ef8ab8a4c /net/core/flow_dissector.c | |
| parent | 3baf5c2d6f4f5bc1bf55b6f3d45015419ca89914 (diff) | |
| parent | 5eed7898626bedd6405421550c0c6e8ab9591bb2 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf
Daniel Borkmann says:
====================
pull-request: bpf 2019-04-04
The following pull-request contains BPF updates for your *net* tree.
The main changes are:
1) Batch of fixes to the existing BPF flow dissector API to support
calling BPF programs from the eth_get_headlen context (support for
latter is planned to be added in bpf-next), from Stanislav.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/flow_dissector.c')
| -rw-r--r-- | net/core/flow_dissector.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c index bb1a54747d64..94a450b2191a 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; @@ -716,7 +717,8 @@ bool __skb_flow_bpf_dissect(struct bpf_prog *prog, /* Restore state */ memcpy(cb, &cb_saved, sizeof(cb_saved)); - flow_keys->nhoff = clamp_t(u16, flow_keys->nhoff, 0, skb->len); + flow_keys->nhoff = clamp_t(u16, flow_keys->nhoff, + skb_network_offset(skb), skb->len); flow_keys->thoff = clamp_t(u16, flow_keys->thoff, flow_keys->nhoff, skb->len); |