2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
5 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
6 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
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9 * modification, are permitted provided that the following conditions are met:
11 * a) Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
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15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the distribution.
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19 * contributors may be used to endorse or promote products derived
20 * from this software without specific prior written permission.
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32 * THE POSSIBILITY OF SUCH DAMAGE.
35 #ifndef _NETINET_SCTP_INDATA_H_
36 #define _NETINET_SCTP_INDATA_H_
38 #if defined(_KERNEL) || defined(__Userspace__)
40 struct sctp_queued_to_read *
41 sctp_build_readq_entry(struct sctp_tcb *stcb,
42 struct sctp_nets *net,
43 uint32_t tsn, uint32_t ppid,
44 uint32_t context, uint16_t sid,
45 uint32_t mid, uint8_t flags,
48 #define sctp_build_readq_entry_mac(_ctl, in_it, context, net, tsn, ppid, sid, flags, dm, tfsn, mid) do { \
50 atomic_add_int(&((net)->ref_count), 1); \
51 memset(_ctl, 0, sizeof(struct sctp_queued_to_read)); \
52 (_ctl)->sinfo_stream = sid; \
53 TAILQ_INIT(&_ctl->reasm); \
54 (_ctl)->top_fsn = tfsn; \
56 (_ctl)->sinfo_flags = (flags << 8); \
57 (_ctl)->sinfo_ppid = ppid; \
58 (_ctl)->sinfo_context = context; \
59 (_ctl)->fsn_included = 0xffffffff; \
60 (_ctl)->sinfo_tsn = tsn; \
61 (_ctl)->sinfo_cumtsn = tsn; \
62 (_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \
63 (_ctl)->whoFrom = net; \
65 (_ctl)->stcb = (in_it); \
66 (_ctl)->port_from = (in_it)->rport; \
67 if ((in_it)->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { \
68 (_ctl)->do_not_ref_stcb = 1; \
74 sctp_build_ctl_nchunk(struct sctp_inpcb *inp,
75 struct sctp_sndrcvinfo *sinfo);
77 void sctp_set_rwnd(struct sctp_tcb *, struct sctp_association *);
80 sctp_calc_rwnd(struct sctp_tcb *stcb, struct sctp_association *asoc);
83 sctp_express_handle_sack(struct sctp_tcb *stcb, uint32_t cumack,
84 uint32_t rwnd, int *abort_now, int ecne_seen);
87 sctp_handle_sack(struct mbuf *m, int offset_seg, int offset_dup,
88 struct sctp_tcb *stcb,
89 uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup,
90 int *abort_now, uint8_t flags,
91 uint32_t cum_ack, uint32_t rwnd, int ecne_seen);
93 /* draft-ietf-tsvwg-usctp */
95 sctp_handle_forward_tsn(struct sctp_tcb *,
96 struct sctp_forward_tsn_chunk *, int *, struct mbuf *, int);
98 struct sctp_tmit_chunk *sctp_try_advance_peer_ack_point(struct sctp_tcb *, struct sctp_association *);
100 void sctp_service_queues(struct sctp_tcb *, struct sctp_association *);
103 sctp_update_acked(struct sctp_tcb *, struct sctp_shutdown_chunk *, int *);
106 sctp_process_data(struct mbuf **, int, int *, int,
107 struct sctp_inpcb *, struct sctp_tcb *,
108 struct sctp_nets *, uint32_t *);
110 void sctp_slide_mapping_arrays(struct sctp_tcb *stcb);
112 void sctp_sack_check(struct sctp_tcb *, int);