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 /net/core/sock.c | |
| 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 '')
| -rw-r--r-- | net/core/sock.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/net/core/sock.c b/net/core/sock.c index d57b0cc995a0..f5e801a9cea4 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1851,9 +1851,12 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority) goto out; } RCU_INIT_POINTER(newsk->sk_reuseport_cb, NULL); -#ifdef CONFIG_BPF_SYSCALL - RCU_INIT_POINTER(newsk->sk_bpf_storage, NULL); -#endif + + if (bpf_sk_storage_clone(sk, newsk)) { + sk_free_unlock_clone(newsk); + newsk = NULL; + goto out; + } newsk->sk_err = 0; newsk->sk_err_soft = 0; |