(Please also cc linux-sctp on this one.)
On 09/12/2013 12:51 PM, Duan Jiong wrote:
> From: Duan Jiong <duanj.fnst@xxxxxxxxxxxxxx>
>
> In additon, when dealing with redirect message, it should
> not report error message to user, and need to return
> directly.
>
> Signed-off-by: Duan Jiong <duanj.fnst@xxxxxxxxxxxxxx>
> ---
> net/sctp/input.c | 12 ------------
> net/sctp/ipv6.c | 6 +++---
> 2 files changed, 3 insertions(+), 15 deletions(-)
>
> diff --git a/net/sctp/input.c b/net/sctp/input.c
> index 5f20686..0d2d4b7 100644
> --- a/net/sctp/input.c
> +++ b/net/sctp/input.c
> @@ -413,18 +413,6 @@ void sctp_icmp_frag_needed(struct sock *sk, struct sctp_association *asoc,
> sctp_retransmit(&asoc->outqueue, t, SCTP_RTXR_PMTUD);
> }
>
> -void sctp_icmp_redirect(struct sock *sk, struct sctp_transport *t,
> - struct sk_buff *skb)
> -{
> - struct dst_entry *dst;
> -
> - if (!t)
> - return;
> - dst = sctp_transport_dst_check(t);
> - if (dst)
> - dst->ops->redirect(dst, sk, skb);
> -}
> -
> /*
> * SCTP Implementer's Guide, 2.37 ICMP handling procedures
> *
> diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
> index da613ce..ee12d87 100644
> --- a/net/sctp/ipv6.c
> +++ b/net/sctp/ipv6.c
> @@ -151,6 +151,9 @@ static void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
> int err;
> struct net *net = dev_net(skb->dev);
>
> + if (type == NDISC_REDIRECT)
> + return;
> +
> idev = in6_dev_get(skb->dev);
>
> /* Fix up skb to look at the embedded net header. */
> @@ -181,9 +184,6 @@ static void sctp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
> goto out_unlock;
> }
> break;
> - case NDISC_REDIRECT:
> - sctp_icmp_redirect(sk, transport, skb);
> - break;
> default:
> break;
> }
>
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