xref: /freebsd/sys/netinet/sctp_indata.h (revision e7e71dd7f3a496ec1e3bcaf85d46d8da3a216a44)
1f8829a4aSRandall Stewart /*-
2b1006367SRandall Stewart  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
3807aad63SMichael Tuexen  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
4807aad63SMichael Tuexen  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
5f8829a4aSRandall Stewart  *
6f8829a4aSRandall Stewart  * Redistribution and use in source and binary forms, with or without
7f8829a4aSRandall Stewart  * modification, are permitted provided that the following conditions are met:
8f8829a4aSRandall Stewart  *
9f8829a4aSRandall Stewart  * a) Redistributions of source code must retain the above copyright notice,
10f8829a4aSRandall Stewart  *    this list of conditions and the following disclaimer.
11f8829a4aSRandall Stewart  *
12f8829a4aSRandall Stewart  * b) Redistributions in binary form must reproduce the above copyright
13f8829a4aSRandall Stewart  *    notice, this list of conditions and the following disclaimer in
14f8829a4aSRandall Stewart  *    the documentation and/or other materials provided with the distribution.
15f8829a4aSRandall Stewart  *
16f8829a4aSRandall Stewart  * c) Neither the name of Cisco Systems, Inc. nor the names of its
17f8829a4aSRandall Stewart  *    contributors may be used to endorse or promote products derived
18f8829a4aSRandall Stewart  *    from this software without specific prior written permission.
19f8829a4aSRandall Stewart  *
20f8829a4aSRandall Stewart  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21f8829a4aSRandall Stewart  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
22f8829a4aSRandall Stewart  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23f8829a4aSRandall Stewart  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24f8829a4aSRandall Stewart  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25f8829a4aSRandall Stewart  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26f8829a4aSRandall Stewart  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27f8829a4aSRandall Stewart  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28f8829a4aSRandall Stewart  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29f8829a4aSRandall Stewart  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
30f8829a4aSRandall Stewart  * THE POSSIBILITY OF SUCH DAMAGE.
31f8829a4aSRandall Stewart  */
32f8829a4aSRandall Stewart 
33f8829a4aSRandall Stewart #include <sys/cdefs.h>
34f8829a4aSRandall Stewart __FBSDID("$FreeBSD$");
35f8829a4aSRandall Stewart 
36807aad63SMichael Tuexen #ifndef _NETINET_SCTP_INDATA_H_
37807aad63SMichael Tuexen #define _NETINET_SCTP_INDATA_H_
38f8829a4aSRandall Stewart 
39fc14de76SRandall Stewart #if defined(_KERNEL) || defined(__Userspace__)
40f8829a4aSRandall Stewart 
41f8829a4aSRandall Stewart struct sctp_queued_to_read *
42f8829a4aSRandall Stewart sctp_build_readq_entry(struct sctp_tcb *stcb,
43f8829a4aSRandall Stewart     struct sctp_nets *net,
44f8829a4aSRandall Stewart     uint32_t tsn, uint32_t ppid,
45f8829a4aSRandall Stewart     uint32_t context, uint16_t stream_no,
46f8829a4aSRandall Stewart     uint16_t stream_seq, uint8_t flags,
47f8829a4aSRandall Stewart     struct mbuf *dm);
48f8829a4aSRandall Stewart 
49f8829a4aSRandall Stewart 
5056f778aaSMichael Tuexen #define sctp_build_readq_entry_mac(_ctl, in_it, context, net, tsn, ppid, stream_no, stream_seq, flags, dm) do { \
51f8829a4aSRandall Stewart 	if (_ctl) { \
5244b7479bSRandall Stewart 		atomic_add_int(&((net)->ref_count), 1); \
53f8829a4aSRandall Stewart 		(_ctl)->sinfo_stream = stream_no; \
54f8829a4aSRandall Stewart 		(_ctl)->sinfo_ssn = stream_seq; \
55f8829a4aSRandall Stewart 		(_ctl)->sinfo_flags = (flags << 8); \
56f8829a4aSRandall Stewart 		(_ctl)->sinfo_ppid = ppid; \
5756f778aaSMichael Tuexen 		(_ctl)->sinfo_context = context; \
58f8829a4aSRandall Stewart 		(_ctl)->sinfo_timetolive = 0; \
59f8829a4aSRandall Stewart 		(_ctl)->sinfo_tsn = tsn; \
60f8829a4aSRandall Stewart 		(_ctl)->sinfo_cumtsn = tsn; \
6144b7479bSRandall Stewart 		(_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \
62f8829a4aSRandall Stewart 		(_ctl)->length = 0; \
6344b7479bSRandall Stewart 		(_ctl)->held_length = 0; \
6444b7479bSRandall Stewart 		(_ctl)->whoFrom = net; \
65f8829a4aSRandall Stewart 		(_ctl)->data = dm; \
66f8829a4aSRandall Stewart 		(_ctl)->tail_mbuf = NULL; \
6717205eccSRandall Stewart 	        (_ctl)->aux_data = NULL; \
6844b7479bSRandall Stewart 		(_ctl)->stcb = (in_it); \
6944b7479bSRandall Stewart 		(_ctl)->port_from = (in_it)->rport; \
7044b7479bSRandall Stewart 		(_ctl)->spec_flags = 0; \
71f8829a4aSRandall Stewart 		(_ctl)->do_not_ref_stcb = 0; \
72f8829a4aSRandall Stewart 		(_ctl)->end_added = 0; \
7344b7479bSRandall Stewart 		(_ctl)->pdapi_aborted = 0; \
749a6142d8SRandall Stewart 		(_ctl)->some_taken = 0; \
75f8829a4aSRandall Stewart 	} \
76f8829a4aSRandall Stewart } while (0)
77f8829a4aSRandall Stewart 
78f8829a4aSRandall Stewart 
79f8829a4aSRandall Stewart 
80f8829a4aSRandall Stewart struct mbuf *
81f8829a4aSRandall Stewart sctp_build_ctl_nchunk(struct sctp_inpcb *inp,
82f8829a4aSRandall Stewart     struct sctp_sndrcvinfo *sinfo);
83f8829a4aSRandall Stewart 
84f8829a4aSRandall Stewart void sctp_set_rwnd(struct sctp_tcb *, struct sctp_association *);
85f8829a4aSRandall Stewart 
86f8829a4aSRandall Stewart uint32_t
87f8829a4aSRandall Stewart sctp_calc_rwnd(struct sctp_tcb *stcb, struct sctp_association *asoc);
88f8829a4aSRandall Stewart 
89f8829a4aSRandall Stewart void
90f8829a4aSRandall Stewart sctp_express_handle_sack(struct sctp_tcb *stcb, uint32_t cumack,
91899288aeSRandall Stewart     uint32_t rwnd, int *abort_now, int ecne_seen);
92f8829a4aSRandall Stewart 
93f8829a4aSRandall Stewart void
94cd554309SMichael Tuexen sctp_handle_sack(struct mbuf *m, int offset_seg, int offset_dup,
957215cc1bSMichael Tuexen     struct sctp_tcb *stcb,
96cd554309SMichael Tuexen     uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup,
97cd554309SMichael Tuexen     int *abort_now, uint8_t flags,
98899288aeSRandall Stewart     uint32_t cum_ack, uint32_t rwnd, int ecne_seen);
99830d754dSRandall Stewart 
100f8829a4aSRandall Stewart /* draft-ietf-tsvwg-usctp */
101f8829a4aSRandall Stewart void
102f8829a4aSRandall Stewart sctp_handle_forward_tsn(struct sctp_tcb *,
103671d309cSRandall Stewart     struct sctp_forward_tsn_chunk *, int *, struct mbuf *, int);
104f8829a4aSRandall Stewart 
105f8829a4aSRandall Stewart struct sctp_tmit_chunk *
106f8829a4aSRandall Stewart                 sctp_try_advance_peer_ack_point(struct sctp_tcb *, struct sctp_association *);
107f8829a4aSRandall Stewart 
108f8829a4aSRandall Stewart void sctp_service_queues(struct sctp_tcb *, struct sctp_association *);
109f8829a4aSRandall Stewart 
110f8829a4aSRandall Stewart void
1117215cc1bSMichael Tuexen      sctp_update_acked(struct sctp_tcb *, struct sctp_shutdown_chunk *, int *);
112f8829a4aSRandall Stewart 
113f8829a4aSRandall Stewart int
114b1754ad1SMichael Tuexen sctp_process_data(struct mbuf **, int, int *, int,
115d06c82f1SRandall Stewart     struct sctp_inpcb *, struct sctp_tcb *,
116*e7e71dd7SMichael Tuexen     struct sctp_nets *, uint32_t *);
117f8829a4aSRandall Stewart 
118b5c16493SMichael Tuexen void sctp_slide_mapping_arrays(struct sctp_tcb *stcb);
119b5c16493SMichael Tuexen 
1207215cc1bSMichael Tuexen void sctp_sack_check(struct sctp_tcb *, int);
121f8829a4aSRandall Stewart 
122f8829a4aSRandall Stewart #endif
123f8829a4aSRandall Stewart #endif
124