| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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__ */ |