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