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bpf: add access to sock fields and pkt data from sk_skb programs

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Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Fastabend
2017-08-15 22:33:09 -07:00
committed by David S. Miller
parent 174a79ff95
commit 8a31db5615
3 changed files with 179 additions and 0 deletions
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9
include/uapi/linux/bpf.h
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@@ -712,6 +712,15 @@ struct __sk_buff {
__u32 data;
__u32 data_end;
__u32 napi_id;
/* accessed by BPF_PROG_TYPE_sk_skb types */
__u32 family;
__u32 remote_ip4; /* Stored in network byte order */
__u32 local_ip4; /* Stored in network byte order */
__u32 remote_ip6[4]; /* Stored in network byte order */
__u32 local_ip6[4]; /* Stored in network byte order */
__u32 remote_port; /* Stored in network byte order */
__u32 local_port; /* stored in host byte order */
};
struct bpf_tunnel_key {