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| author | Xin Long <lucien.xin@gmail.com> | 2017-12-08 21:04:09 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-12-11 11:23:05 -0500 |
| commit | 132282386f5d0eff7a84a119599216b5f9e9bfc6 (patch) | |
| tree | d38678a52bc8be07f40964b91c6afb839fa8cf03 /include/net/sctp | |
| parent | 65f5e357839e40817aead853d7a7f61ff828b52b (diff) | |
| download | linux-132282386f5d0eff7a84a119599216b5f9e9bfc6.tar.bz2 | |
sctp: add support for the process of unordered idata
Unordered idata process is more complicated than unordered data:
- It has to add mid into sctp_stream_out to save the next mid value,
which is separated from ordered idata's.
- To support pd for unordered idata, another mid and pd_mode need to
be added to save the message id and pd state in sctp_stream_in.
- To make unordered idata reasm easier, it adds a new event queue
to save frags for idata.
The patch mostly adds the samilar reasm functions for unordered idata
as ordered idata's, and also adjusts some other codes on assign_mid,
abort_pd and ulpevent_data for idata.
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>
Diffstat (limited to 'include/net/sctp')
| -rw-r--r-- | include/net/sctp/structs.h | 14 | ||||
| -rw-r--r-- | include/net/sctp/ulpqueue.h | 1 |
2 files changed, 14 insertions, 1 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 73b315de2fef..8ef638d966f1 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -413,6 +413,14 @@ void sctp_stream_update(struct sctp_stream *stream, struct sctp_stream *new); #define sctp_stream_in(asoc, sid) (&(asoc)->stream.in[sid]) +/* What is the current MID_uo number for this stream? */ +#define sctp_mid_uo_peek(stream, type, sid) \ + ((stream)->type[sid].mid_uo) + +/* Return the next MID_uo number for this stream. */ +#define sctp_mid_uo_next(stream, type, sid) \ + ((stream)->type[sid].mid_uo++) + /* * Pointers to address related SCTP functions. * (i.e. things that depend on the address family.) @@ -1379,8 +1387,9 @@ struct sctp_stream_out { __u32 mid; __u16 ssn; }; - __u8 state; + __u32 mid_uo; struct sctp_stream_out_ext *ext; + __u8 state; }; struct sctp_stream_in { @@ -1388,8 +1397,11 @@ struct sctp_stream_in { __u32 mid; __u16 ssn; }; + __u32 mid_uo; __u32 fsn; + __u32 fsn_uo; char pd_mode; + char pd_mode_uo; }; struct sctp_stream { diff --git a/include/net/sctp/ulpqueue.h b/include/net/sctp/ulpqueue.h index eb98c7150a56..bb0ecba3db2b 100644 --- a/include/net/sctp/ulpqueue.h +++ b/include/net/sctp/ulpqueue.h @@ -45,6 +45,7 @@ struct sctp_ulpq { char pd_mode; struct sctp_association *asoc; struct sk_buff_head reasm; + struct sk_buff_head reasm_uo; struct sk_buff_head lobby; }; |