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sctp: implement handle_ftsn for sctp_stream_interleave

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handle_ftsn is added as a member of sctp_stream_interleave, used to skip
ssn for data or mid for idata, called for SCTP_CMD_PROCESS_FWDTSN cmd.

sctp_handle_iftsn works for ifwdtsn, and sctp_handle_fwdtsn works for
fwdtsn. Note that different from sctp_handle_fwdtsn, sctp_handle_iftsn
could do stream abort pd.

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>
This commit is contained in:
Xin Long
2017-12-15 00:41:29 +08:00
committed by David S. Miller
parent 47b20a8856
commit de60fe9105
3 changed files with 53 additions and 13 deletions
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2
include/net/sctp/stream_interleave.h
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@@ -52,6 +52,8 @@ struct sctp_stream_interleave {
void (*generate_ftsn)(struct sctp_outq *q, __u32 ctsn);
bool (*validate_ftsn)(struct sctp_chunk *chunk);
void (*report_ftsn)(struct sctp_ulpq *ulpq, __u32 ftsn);
void (*handle_ftsn)(struct sctp_ulpq *ulpq,
struct sctp_chunk *chunk);
};
void sctp_stream_interleave_init(struct sctp_stream *stream);