diff options
| author |   Stanislav Fomichev <sdf@google.com> | 2019-08-14 10:37:49 -0700 |
|---|---|---|
| committer |   Daniel Borkmann <daniel@iogearbox.net> | 2019-08-17 23:18:54 +0200 |
| commit | 8f51dfc73bf181f2304e1498f55d5f452e060cbe (patch) | |
| tree | 1b3877adff06cd12dbeac725521cef44d2ebf7d7 /include/net/bpf_sk_storage.h | |
| parent | bpf: export bpf_map_inc_not_zero (diff) | |
| download | linux-dev-8f51dfc73bf181f2304e1498f55d5f452e060cbe.tar.xz linux-dev-8f51dfc73bf181f2304e1498f55d5f452e060cbe.zip | |
bpf: support cloning sk storage on accept()
Add new helper bpf_sk_storage_clone which optionally clones sk storage
and call it from sk_clone_lock.
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Acked-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Diffstat (limited to 'include/net/bpf_sk_storage.h')
| -rw-r--r-- | include/net/bpf_sk_storage.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/bpf_sk_storage.h b/include/net/bpf_sk_storage.h index b9dcb02e756b..8e4f831d2e52 100644 --- a/include/net/bpf_sk_storage.h +++ b/include/net/bpf_sk_storage.h @@ -10,4 +10,14 @@ void bpf_sk_storage_free(struct sock *sk); extern const struct bpf_func_proto bpf_sk_storage_get_proto; extern const struct bpf_func_proto bpf_sk_storage_delete_proto; +#ifdef CONFIG_BPF_SYSCALL +int bpf_sk_storage_clone(const struct sock *sk, struct sock *newsk); +#else +static inline int bpf_sk_storage_clone(const struct sock *sk, + struct sock *newsk) +{ + return 0; +} +#endif + #endif /* _BPF_SK_STORAGE_H */ |