1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* SCTP kernel implementation |
3 | * (C) Copyright Red Hat Inc. 2017 |
4 | * |
5 | * These are definitions used by the stream schedulers, defined in RFC |
6 | * draft ndata (https://tools.ietf.org/html/draft-ietf-tsvwg-sctp-ndata-11) |
7 | * |
8 | * Please send any bug reports or fixes you make to the |
9 | * email addresses: |
10 | * lksctp developers <linux-sctp@vger.kernel.org> |
11 | * |
12 | * Written or modified by: |
13 | * Xin Long <lucien.xin@gmail.com> |
14 | */ |
15 | |
16 | #ifndef __sctp_stream_interleave_h__ |
17 | #define __sctp_stream_interleave_h__ |
18 | |
19 | struct sctp_stream_interleave { |
20 | __u16 data_chunk_len; |
21 | __u16 ftsn_chunk_len; |
22 | /* (I-)DATA process */ |
23 | struct sctp_chunk *(*make_datafrag)(const struct sctp_association *asoc, |
24 | const struct sctp_sndrcvinfo *sinfo, |
25 | int len, __u8 flags, gfp_t gfp); |
26 | void (*assign_number)(struct sctp_chunk *chunk); |
27 | bool (*validate_data)(struct sctp_chunk *chunk); |
28 | int (*ulpevent_data)(struct sctp_ulpq *ulpq, |
29 | struct sctp_chunk *chunk, gfp_t gfp); |
30 | int (*enqueue_event)(struct sctp_ulpq *ulpq, |
31 | struct sctp_ulpevent *event); |
32 | void (*renege_events)(struct sctp_ulpq *ulpq, |
33 | struct sctp_chunk *chunk, gfp_t gfp); |
34 | void (*start_pd)(struct sctp_ulpq *ulpq, gfp_t gfp); |
35 | void (*abort_pd)(struct sctp_ulpq *ulpq, gfp_t gfp); |
36 | /* (I-)FORWARD-TSN process */ |
37 | void (*generate_ftsn)(struct sctp_outq *q, __u32 ctsn); |
38 | bool (*validate_ftsn)(struct sctp_chunk *chunk); |
39 | void (*report_ftsn)(struct sctp_ulpq *ulpq, __u32 ftsn); |
40 | void (*handle_ftsn)(struct sctp_ulpq *ulpq, |
41 | struct sctp_chunk *chunk); |
42 | }; |
43 | |
44 | void sctp_stream_interleave_init(struct sctp_stream *stream); |
45 | |
46 | #endif /* __sctp_stream_interleave_h__ */ |
47 | |