sctp: implement abort_pd for sctp_stream_interleave

abort_pd is added as a member of sctp_stream_interleave, used to abort
partial delivery for data or idata, called in sctp_cmd_assoc_failed.

Since stream interleave allows to do partial delivery for each stream
at the same time, sctp_intl_abort_pd for idata would be very different
from the old function sctp_ulpq_abort_pd for data.

Note that sctp_ulpevent_make_pdapi will support per stream in this
patch by adding pdapi_stream and pdapi_seq in sctp_pdapi_event, as
described in section 6.1.7 of RFC6458.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/net/sctp/stream_interleave.h b/include/net/sctp/stream_interleave.h
index 317d9b3a5299..501b2be049a3 100644
--- a/include/net/sctp/stream_interleave.h
+++ b/include/net/sctp/stream_interleave.h
@@ -46,6 +46,7 @@ struct sctp_stream_interleave {
 	void	(*renege_events)(struct sctp_ulpq *ulpq,
 				 struct sctp_chunk *chunk, gfp_t gfp);
 	void	(*start_pd)(struct sctp_ulpq *ulpq, gfp_t gfp);
+	void	(*abort_pd)(struct sctp_ulpq *ulpq, gfp_t gfp);
 };
 
 void sctp_stream_interleave_init(struct sctp_stream *stream);