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| author | Xin Long <lucien.xin@gmail.com> | 2021-06-22 14:05:00 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-06-22 11:28:52 -0700 |
| commit | 9e47df005cab63e545671dba8dfd6852fff1c2cf (patch) | |
| tree | 6b2ec63ad7dc082cda99e8d15046ec55907e2b94 /include | |
| parent | d83060759a652ccb64d7486fe38c8347b4a64048 (diff) | |
| download | linux-9e47df005cab63e545671dba8dfd6852fff1c2cf.tar.bz2 | |
sctp: process sctp over udp icmp err on sctp side
Previously, sctp over udp was using udp tunnel's icmp err process, which
only does sk lookup on sctp side. However for sctp's icmp error process,
there are more things to do, like syncing assoc pmtu/retransmit packets
for toobig type err, and starting proto_unreach_timer for unreach type
err etc.
Now after adding PLPMTUD, which also requires to process toobig type err
on sctp side. This patch is to process icmp err on sctp side by parsing
the type/code/info in .encap_err_lookup and call sctp's icmp processing
functions. Note as the 'redirect' err process needs to know the outer
ip(v6) header's, we have to leave it to udp(v6)_err to handle it.
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/sctp/sctp.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index f7e083602c10..69bab88ad66b 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -145,6 +145,8 @@ struct sock *sctp_err_lookup(struct net *net, int family, struct sk_buff *, struct sctphdr *, struct sctp_association **, struct sctp_transport **); void sctp_err_finish(struct sock *, struct sctp_transport *); +int sctp_udp_v4_err(struct sock *sk, struct sk_buff *skb); +int sctp_udp_v6_err(struct sock *sk, struct sk_buff *skb); void sctp_icmp_frag_needed(struct sock *, struct sctp_association *, struct sctp_transport *t, __u32 pmtu); void sctp_icmp_redirect(struct sock *, struct sctp_transport *, |