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authorXin Long <lucien.xin@gmail.com>2017-12-14 19:41:26 +0300
committerDavid S. Miller <davem@davemloft.net>2017-12-15 21:52:21 +0300
commit8e0c3b73cec1b943affde91b3c412ad8266b4694 (patch)
tree1fe6fd360a75d7c56967aebc41cabf95d54949fa /include/net/sctp
parent2d07a49aded490a0a4a2748e64030a0f59b6b8be (diff)
downloadlinux-8e0c3b73cec1b943affde91b3c412ad8266b4694.tar.xz
sctp: implement generate_ftsn for sctp_stream_interleave
generate_ftsn is added as a member of sctp_stream_interleave, used to create fwdtsn or ifwdtsn chunk according to abandoned chunks, called in sctp_retransmit and sctp_outq_sack. sctp_generate_iftsn works for ifwdtsn, and sctp_generate_fwdtsn is still used for making fwdtsn. Signed-off-by: Xin Long <lucien.xin@gmail.com> Acked-by: Marcelo R. Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sctp')
-rw-r--r--include/net/sctp/stream_interleave.h2
-rw-r--r--include/net/sctp/structs.h1
2 files changed, 3 insertions, 0 deletions
diff --git a/include/net/sctp/stream_interleave.h b/include/net/sctp/stream_interleave.h
index 501b2be049a3..66267dbcecba 100644
--- a/include/net/sctp/stream_interleave.h
+++ b/include/net/sctp/stream_interleave.h
@@ -47,6 +47,8 @@ struct sctp_stream_interleave {
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);
+ /* (I-)FORWARD-TSN process */
+ void (*generate_ftsn)(struct sctp_outq *q, __u32 ctsn);
};
void sctp_stream_interleave_init(struct sctp_stream *stream);
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index a5c3cf41e693..b7720d65a975 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -1100,6 +1100,7 @@ void sctp_retransmit_mark(struct sctp_outq *, struct sctp_transport *, __u8);
void sctp_outq_uncork(struct sctp_outq *, gfp_t gfp);
void sctp_prsctp_prune(struct sctp_association *asoc,
struct sctp_sndrcvinfo *sinfo, int msg_len);
+void sctp_generate_fwdtsn(struct sctp_outq *q, __u32 sack_ctsn);
/* Uncork and flush an outqueue. */
static inline void sctp_outq_cork(struct sctp_outq *q)
{