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skmsg: Pass source psock to sk_psock_skb_redirect()

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sk_psock_skb_redirect() only takes skb as a parameter, we
will need to know where this skb is from, so just pass
the source psock to this function as a new parameter.
This patch prepares for the next one.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20210615021342.7416-8-xiyou.wangcong@gmail.com
This commit is contained in:
Cong Wang 2021-06-14 19:13:41 -07:00 committed by Daniel Borkmann
parent 1581a6c1c3
commit 42830571f1
1 changed files with 6 additions and 5 deletions
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11
net/core/skmsg.c
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@ -824,7 +824,7 @@ out:
}
EXPORT_SYMBOL_GPL(sk_psock_msg_verdict);
static int sk_psock_skb_redirect(struct sk_buff *skb)
static int sk_psock_skb_redirect(struct sk_psock *from, struct sk_buff *skb)
{
struct sk_psock *psock_other;
struct sock *sk_other;
@ -861,11 +861,12 @@ static int sk_psock_skb_redirect(struct sk_buff *skb)
return 0;
}
static void sk_psock_tls_verdict_apply(struct sk_buff *skb, struct sock *sk, int verdict)
static void sk_psock_tls_verdict_apply(struct sk_buff *skb,
struct sk_psock *from, int verdict)
{
switch (verdict) {
case __SK_REDIRECT:
sk_psock_skb_redirect(skb);
sk_psock_skb_redirect(from, skb);
break;
case __SK_PASS:
case __SK_DROP:
@ -889,7 +890,7 @@ int sk_psock_tls_strp_read(struct sk_psock *psock, struct sk_buff *skb)
ret = sk_psock_map_verd(ret, skb_bpf_redirect_fetch(skb));
skb->sk = NULL;
}
sk_psock_tls_verdict_apply(skb, psock->sk, ret);
sk_psock_tls_verdict_apply(skb, psock, ret);
rcu_read_unlock();
return ret;
}
@ -936,7 +937,7 @@ static int sk_psock_verdict_apply(struct sk_psock *psock, struct sk_buff *skb,
}
break;
case __SK_REDIRECT:
err = sk_psock_skb_redirect(skb);
err = sk_psock_skb_redirect(psock, skb);
break;
case __SK_DROP:
default: