diff options
| author | David S. Miller <davem@davemloft.net> | 2017-11-02 14:59:52 +0900 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-11-02 15:23:39 +0900 |
| commit | ed29668d1aa2c6f01e61dd616df13b5241cee7e0 (patch) | |
| tree | a086cf6311ed8623b292d3ea8d73c03f53207be0 /kernel/bpf | |
| parent | 65c959a39b7e9ad6b443b74904486b4a75b0232f (diff) | |
| parent | 3a99df9a3d14cd866b5516f8cba515a3bfd554ab (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Smooth Cong Wang's bug fix into 'net-next'. Basically put
the bulk of the tcf_block_put() logic from 'net' into
tcf_block_put_ext(), but after the offload unbind.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/sockmap.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/kernel/bpf/sockmap.c b/kernel/bpf/sockmap.c index de8f66cad882..5ee2e41893d9 100644 --- a/kernel/bpf/sockmap.c +++ b/kernel/bpf/sockmap.c @@ -104,13 +104,19 @@ static inline void bpf_compute_data_end_sk_skb(struct sk_buff *skb) TCP_SKB_CB(skb)->bpf.data_end = skb->data + skb_headlen(skb); } +enum __sk_action { + __SK_DROP = 0, + __SK_PASS, + __SK_REDIRECT, +}; + static int smap_verdict_func(struct smap_psock *psock, struct sk_buff *skb) { struct bpf_prog *prog = READ_ONCE(psock->bpf_verdict); int rc; if (unlikely(!prog)) - return SK_DROP; + return __SK_DROP; skb_orphan(skb); /* We need to ensure that BPF metadata for maps is also cleared @@ -125,8 +131,10 @@ static int smap_verdict_func(struct smap_psock *psock, struct sk_buff *skb) preempt_enable(); skb->sk = NULL; + /* Moving return codes from UAPI namespace into internal namespace */ return rc == SK_PASS ? - (TCP_SKB_CB(skb)->bpf.map ? SK_REDIRECT : SK_PASS) : SK_DROP; + (TCP_SKB_CB(skb)->bpf.map ? __SK_REDIRECT : __SK_PASS) : + __SK_DROP; } static void smap_do_verdict(struct smap_psock *psock, struct sk_buff *skb) @@ -136,7 +144,7 @@ static void smap_do_verdict(struct smap_psock *psock, struct sk_buff *skb) rc = smap_verdict_func(psock, skb); switch (rc) { - case SK_REDIRECT: + case __SK_REDIRECT: sk = do_sk_redirect_map(skb); if (likely(sk)) { struct smap_psock *peer = smap_psock_sk(sk); @@ -152,7 +160,7 @@ static void smap_do_verdict(struct smap_psock *psock, struct sk_buff *skb) } } /* Fall through and free skb otherwise */ - case SK_DROP: + case __SK_DROP: default: kfree_skb(skb); } |