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Diffstat (limited to '')
| -rwxr-xr-x | netwerk/sctp/src/netinet/sctp_indata.h | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/netwerk/sctp/src/netinet/sctp_indata.h b/netwerk/sctp/src/netinet/sctp_indata.h new file mode 100755 index 0000000000..829a014f2d --- /dev/null +++ b/netwerk/sctp/src/netinet/sctp_indata.h @@ -0,0 +1,124 @@ +/*- + * SPDX-License-Identifier: BSD-3-Clause + * + * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved. + * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved. + * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * a) Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * + * b) Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the distribution. + * + * c) Neither the name of Cisco Systems, Inc. nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE + * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF + * THE POSSIBILITY OF SUCH DAMAGE. + */ + +#if defined(__FreeBSD__) && !defined(__Userspace__) +#include <sys/cdefs.h> +__FBSDID("$FreeBSD: head/sys/netinet/sctp_indata.h 361116 2020-05-16 19:26:39Z tuexen $"); +#endif + +#ifndef _NETINET_SCTP_INDATA_H_ +#define _NETINET_SCTP_INDATA_H_ + +#if defined(_KERNEL) || defined(__Userspace__) + +struct sctp_queued_to_read * +sctp_build_readq_entry(struct sctp_tcb *stcb, + struct sctp_nets *net, + uint32_t tsn, uint32_t ppid, + uint32_t context, uint16_t sid, + uint32_t mid, uint8_t flags, + struct mbuf *dm); + + +#define sctp_build_readq_entry_mac(_ctl, in_it, context, net, tsn, ppid, sid, flags, dm, tfsn, mid) do { \ + if (_ctl) { \ + atomic_add_int(&((net)->ref_count), 1); \ + memset(_ctl, 0, sizeof(struct sctp_queued_to_read)); \ + (_ctl)->sinfo_stream = sid; \ + TAILQ_INIT(&_ctl->reasm); \ + (_ctl)->top_fsn = tfsn; \ + (_ctl)->mid = mid; \ + (_ctl)->sinfo_flags = (flags << 8); \ + (_ctl)->sinfo_ppid = ppid; \ + (_ctl)->sinfo_context = context; \ + (_ctl)->fsn_included = 0xffffffff; \ + (_ctl)->sinfo_tsn = tsn; \ + (_ctl)->sinfo_cumtsn = tsn; \ + (_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \ + (_ctl)->whoFrom = net; \ + (_ctl)->data = dm; \ + (_ctl)->stcb = (in_it); \ + (_ctl)->port_from = (in_it)->rport; \ + if ((in_it)->asoc.state & SCTP_STATE_ABOUT_TO_BE_FREED) { \ + (_ctl)->do_not_ref_stcb = 1; \ + }\ + } \ +} while (0) + + + +struct mbuf * +sctp_build_ctl_nchunk(struct sctp_inpcb *inp, + struct sctp_sndrcvinfo *sinfo); + +void sctp_set_rwnd(struct sctp_tcb *, struct sctp_association *); + +uint32_t +sctp_calc_rwnd(struct sctp_tcb *stcb, struct sctp_association *asoc); + +void +sctp_express_handle_sack(struct sctp_tcb *stcb, uint32_t cumack, + uint32_t rwnd, int *abort_now, int ecne_seen); + +void +sctp_handle_sack(struct mbuf *m, int offset_seg, int offset_dup, + struct sctp_tcb *stcb, + uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup, + int *abort_now, uint8_t flags, + uint32_t cum_ack, uint32_t rwnd, int ecne_seen); + +/* draft-ietf-tsvwg-usctp */ +void +sctp_handle_forward_tsn(struct sctp_tcb *, + struct sctp_forward_tsn_chunk *, int *, struct mbuf *, int); + +struct sctp_tmit_chunk * +sctp_try_advance_peer_ack_point(struct sctp_tcb *, struct sctp_association *); + +void sctp_service_queues(struct sctp_tcb *, struct sctp_association *); + +void +sctp_update_acked(struct sctp_tcb *, struct sctp_shutdown_chunk *, int *); + +int +sctp_process_data(struct mbuf **, int, int *, int, + struct sctp_inpcb *, struct sctp_tcb *, + struct sctp_nets *, uint32_t *); + +void sctp_slide_mapping_arrays(struct sctp_tcb *stcb); + +void sctp_sack_check(struct sctp_tcb *, int); + +#endif +#endif |