2 * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3 * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4 * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
9 * a) Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
12 * b) Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the distribution.
16 * c) Neither the name of Cisco Systems, Inc. nor the names of its
17 * contributors may be used to endorse or promote products derived
18 * from this software without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30 * THE POSSIBILITY OF SUCH DAMAGE.
33 #include <sys/cdefs.h>
34 __FBSDID("$FreeBSD$");
36 #ifndef _NETINET_SCTP_INDATA_H_
37 #define _NETINET_SCTP_INDATA_H_
39 #if defined(_KERNEL) || defined(__Userspace__)
41 struct sctp_queued_to_read *
42 sctp_build_readq_entry(struct sctp_tcb *stcb,
43 struct sctp_nets *net,
44 uint32_t tsn, uint32_t ppid,
45 uint32_t context, uint16_t stream_no,
46 uint16_t stream_seq, uint8_t flags,
50 #define sctp_build_readq_entry_mac(_ctl, in_it, context, net, tsn, ppid, stream_no, stream_seq, flags, dm) do { \
52 atomic_add_int(&((net)->ref_count), 1); \
53 (_ctl)->sinfo_stream = stream_no; \
54 (_ctl)->sinfo_ssn = stream_seq; \
55 (_ctl)->sinfo_flags = (flags << 8); \
56 (_ctl)->sinfo_ppid = ppid; \
57 (_ctl)->sinfo_context = context; \
58 (_ctl)->sinfo_timetolive = 0; \
59 (_ctl)->sinfo_tsn = tsn; \
60 (_ctl)->sinfo_cumtsn = tsn; \
61 (_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \
63 (_ctl)->held_length = 0; \
64 (_ctl)->whoFrom = net; \
66 (_ctl)->tail_mbuf = NULL; \
67 (_ctl)->aux_data = NULL; \
68 (_ctl)->stcb = (in_it); \
69 (_ctl)->port_from = (in_it)->rport; \
70 (_ctl)->spec_flags = 0; \
71 (_ctl)->do_not_ref_stcb = 0; \
72 (_ctl)->end_added = 0; \
73 (_ctl)->pdapi_aborted = 0; \
74 (_ctl)->some_taken = 0; \
81 sctp_build_ctl_nchunk(struct sctp_inpcb *inp,
82 struct sctp_sndrcvinfo *sinfo);
84 void sctp_set_rwnd(struct sctp_tcb *, struct sctp_association *);
87 sctp_calc_rwnd(struct sctp_tcb *stcb, struct sctp_association *asoc);
90 sctp_express_handle_sack(struct sctp_tcb *stcb, uint32_t cumack,
91 uint32_t rwnd, int *abort_now, int ecne_seen);
94 sctp_handle_sack(struct mbuf *m, int offset_seg, int offset_dup,
95 struct sctp_tcb *stcb,
96 uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup,
97 int *abort_now, uint8_t flags,
98 uint32_t cum_ack, uint32_t rwnd, int ecne_seen);
100 /* draft-ietf-tsvwg-usctp */
102 sctp_handle_forward_tsn(struct sctp_tcb *,
103 struct sctp_forward_tsn_chunk *, int *, struct mbuf *, int);
105 struct sctp_tmit_chunk *
106 sctp_try_advance_peer_ack_point(struct sctp_tcb *, struct sctp_association *);
108 void sctp_service_queues(struct sctp_tcb *, struct sctp_association *);
111 sctp_update_acked(struct sctp_tcb *, struct sctp_shutdown_chunk *, int *);
114 sctp_process_data(struct mbuf **, int, int *, int,
115 struct sctp_inpcb *, struct sctp_tcb *,
116 struct sctp_nets *, uint32_t *);
118 void sctp_slide_mapping_arrays(struct sctp_tcb *stcb);
120 void sctp_sack_check(struct sctp_tcb *, int);