diff options
author | John Fastabend <john.fastabend@gmail.com> | 2018-05-14 20:00:16 +0300 |
---|---|---|
committer | Daniel Borkmann <daniel@iogearbox.net> | 2018-05-15 18:19:59 +0300 |
commit | e5cd3abcb31a48d4ea91bd32f0618802ca5f3592 (patch) | |
tree | 9f9a20ba785895a7484d60dad2c786e0cd4f04a7 /include/linux/filter.h | |
parent | f2467c2dbc019548052f3a64dc1efd01c0ae27aa (diff) | |
download | linux-e5cd3abcb31a48d4ea91bd32f0618802ca5f3592.tar.xz |
bpf: sockmap, refactor sockmap routines to work with hashmap
This patch only refactors the existing sockmap code. This will allow
much of the psock initialization code path and bpf helper codes to
work for both sockmap bpf map types that are backed by an array, the
currently supported type, and the new hash backed bpf map type
sockhash.
Most the fallout comes from three changes,
- Pushing bpf programs into an independent structure so we
can use it from the htab struct in the next patch.
- Generalizing helpers to use void *key instead of the hardcoded
u32.
- Instead of passing map/key through the metadata we now do
the lookup inline. This avoids storing the key in the metadata
which will be useful when keys can be longer than 4 bytes. We
rename the sk pointers to sk_redir at this point as well to
avoid any confusion between the current sk pointer and the
redirect pointer sk_redir.
Signed-off-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include/linux/filter.h')
-rw-r--r-- | include/linux/filter.h | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/include/linux/filter.h b/include/linux/filter.h index da7e16523128..9dbcb9d55921 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -515,9 +515,8 @@ struct sk_msg_buff { int sg_end; struct scatterlist sg_data[MAX_SKB_FRAGS]; bool sg_copy[MAX_SKB_FRAGS]; - __u32 key; __u32 flags; - struct bpf_map *map; + struct sock *sk_redir; struct sk_buff *skb; struct list_head list; }; |