michael@0: /*-
michael@0:  * Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
michael@0:  * Copyright (c) 2008-2012, by Randall Stewart. All rights reserved.
michael@0:  * Copyright (c) 2008-2012, by Michael Tuexen. All rights reserved.
michael@0:  *
michael@0:  * Redistribution and use in source and binary forms, with or without
michael@0:  * modification, are permitted provided that the following conditions are met:
michael@0:  *
michael@0:  * a) Redistributions of source code must retain the above copyright notice,
michael@0:  *    this list of conditions and the following disclaimer.
michael@0:  *
michael@0:  * b) Redistributions in binary form must reproduce the above copyright
michael@0:  *    notice, this list of conditions and the following disclaimer in
michael@0:  *    the documentation and/or other materials provided with the distribution.
michael@0:  *
michael@0:  * c) Neither the name of Cisco Systems, Inc. nor the names of its
michael@0:  *    contributors may be used to endorse or promote products derived
michael@0:  *    from this software without specific prior written permission.
michael@0:  *
michael@0:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0:  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
michael@0:  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
michael@0:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
michael@0:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
michael@0:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
michael@0:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
michael@0:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
michael@0:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
michael@0:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
michael@0:  * THE POSSIBILITY OF SUCH DAMAGE.
michael@0:  */
michael@0: 
michael@0: #ifdef __FreeBSD__
michael@0: #include <sys/cdefs.h>
michael@0: __FBSDID("$FreeBSD: head/sys/netinet/sctp_indata.h 252585 2013-07-03 18:48:43Z tuexen $");
michael@0: #endif
michael@0: 
michael@0: #ifndef _NETINET_SCTP_INDATA_H_
michael@0: #define _NETINET_SCTP_INDATA_H_
michael@0: 
michael@0: #if defined(_KERNEL) || defined(__Userspace__)
michael@0: 
michael@0: struct sctp_queued_to_read *
michael@0: sctp_build_readq_entry(struct sctp_tcb *stcb,
michael@0:     struct sctp_nets *net,
michael@0:     uint32_t tsn, uint32_t ppid,
michael@0:     uint32_t context, uint16_t stream_no,
michael@0:     uint16_t stream_seq, uint8_t flags,
michael@0:     struct mbuf *dm);
michael@0: 
michael@0: 
michael@0: #define sctp_build_readq_entry_mac(_ctl, in_it, context, net, tsn, ppid, stream_no, stream_seq, flags, dm) do { \
michael@0: 	if (_ctl) { \
michael@0: 		atomic_add_int(&((net)->ref_count), 1); \
michael@0: 		(_ctl)->sinfo_stream = stream_no; \
michael@0: 		(_ctl)->sinfo_ssn = stream_seq; \
michael@0: 		(_ctl)->sinfo_flags = (flags << 8); \
michael@0: 		(_ctl)->sinfo_ppid = ppid; \
michael@0: 		(_ctl)->sinfo_context = context; \
michael@0: 		(_ctl)->sinfo_timetolive = 0; \
michael@0: 		(_ctl)->sinfo_tsn = tsn; \
michael@0: 		(_ctl)->sinfo_cumtsn = tsn; \
michael@0: 		(_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \
michael@0: 		(_ctl)->length = 0; \
michael@0: 		(_ctl)->held_length = 0; \
michael@0: 		(_ctl)->whoFrom = net; \
michael@0: 		(_ctl)->data = dm; \
michael@0: 		(_ctl)->tail_mbuf = NULL; \
michael@0: 	        (_ctl)->aux_data = NULL; \
michael@0: 		(_ctl)->stcb = (in_it); \
michael@0: 		(_ctl)->port_from = (in_it)->rport; \
michael@0: 		(_ctl)->spec_flags = 0; \
michael@0: 		(_ctl)->do_not_ref_stcb = 0; \
michael@0: 		(_ctl)->end_added = 0; \
michael@0: 		(_ctl)->pdapi_aborted = 0; \
michael@0: 		(_ctl)->some_taken = 0; \
michael@0: 	} \
michael@0: } while (0)
michael@0: 
michael@0: 
michael@0: 
michael@0: struct mbuf *
michael@0: sctp_build_ctl_nchunk(struct sctp_inpcb *inp,
michael@0: 		      struct sctp_sndrcvinfo *sinfo);
michael@0: 
michael@0: void sctp_set_rwnd(struct sctp_tcb *, struct sctp_association *);
michael@0: 
michael@0: uint32_t
michael@0: sctp_calc_rwnd(struct sctp_tcb *stcb, struct sctp_association *asoc);
michael@0: 
michael@0: void
michael@0: sctp_express_handle_sack(struct sctp_tcb *stcb, uint32_t cumack,
michael@0: 			 uint32_t rwnd, int *abort_now, int ecne_seen);
michael@0: 
michael@0: void
michael@0: sctp_handle_sack(struct mbuf *m, int offset_seg, int offset_dup,
michael@0:                  struct sctp_tcb *stcb,
michael@0:                  uint16_t num_seg, uint16_t num_nr_seg, uint16_t num_dup,
michael@0:                  int *abort_now, uint8_t flags,
michael@0:                  uint32_t cum_ack, uint32_t rwnd, int ecne_seen);
michael@0: 
michael@0: /* draft-ietf-tsvwg-usctp */
michael@0: void
michael@0: sctp_handle_forward_tsn(struct sctp_tcb *,
michael@0: 			struct sctp_forward_tsn_chunk *, int *, struct mbuf *, int);
michael@0: 
michael@0: struct sctp_tmit_chunk *
michael@0: sctp_try_advance_peer_ack_point(struct sctp_tcb *, struct sctp_association *);
michael@0: 
michael@0: void sctp_service_queues(struct sctp_tcb *, struct sctp_association *);
michael@0: 
michael@0: void
michael@0: sctp_update_acked(struct sctp_tcb *, struct sctp_shutdown_chunk *, int *);
michael@0: 
michael@0: int
michael@0: sctp_process_data(struct mbuf **, int, int *, int,
michael@0:                   struct sockaddr *src, struct sockaddr *dst,
michael@0:                   struct sctphdr *,
michael@0: 		  struct sctp_inpcb *, struct sctp_tcb *,
michael@0: 		  struct sctp_nets *, uint32_t *,
michael@0: #if defined(__FreeBSD__)
michael@0:                   uint8_t, uint32_t,
michael@0: #endif
michael@0:                   uint32_t, uint16_t);
michael@0: 
michael@0: void sctp_slide_mapping_arrays(struct sctp_tcb *stcb);
michael@0: 
michael@0: void sctp_sack_check(struct sctp_tcb *, int);
michael@0: 
michael@0: #endif
michael@0: #endif