126 lines
4.3 KiB
C
126 lines
4.3 KiB
C
/*-
|
|
* Copyright (c) 2001-2007, by Cisco Systems, Inc. All rights reserved.
|
|
* Copyright (c) 2008-2011, by Randall Stewart. All rights reserved.
|
|
* Copyright (c) 2008-2011, 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.
|
|
*/
|
|
|
|
/* $KAME: sctp_indata.h,v 1.9 2005/03/06 16:04:17 itojun Exp $ */
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#ifndef __sctp_indata_h__
|
|
#define __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 stream_no,
|
|
uint16_t stream_seq, uint8_t flags,
|
|
struct mbuf *dm);
|
|
|
|
|
|
#define sctp_build_readq_entry_mac(_ctl, in_it, a, net, tsn, ppid, context, stream_no, stream_seq, flags, dm) do { \
|
|
if (_ctl) { \
|
|
atomic_add_int(&((net)->ref_count), 1); \
|
|
(_ctl)->sinfo_stream = stream_no; \
|
|
(_ctl)->sinfo_ssn = stream_seq; \
|
|
(_ctl)->sinfo_flags = (flags << 8); \
|
|
(_ctl)->sinfo_ppid = ppid; \
|
|
(_ctl)->sinfo_context = a; \
|
|
(_ctl)->sinfo_timetolive = 0; \
|
|
(_ctl)->sinfo_tsn = tsn; \
|
|
(_ctl)->sinfo_cumtsn = tsn; \
|
|
(_ctl)->sinfo_assoc_id = sctp_get_associd((in_it)); \
|
|
(_ctl)->length = 0; \
|
|
(_ctl)->held_length = 0; \
|
|
(_ctl)->whoFrom = net; \
|
|
(_ctl)->data = dm; \
|
|
(_ctl)->tail_mbuf = NULL; \
|
|
(_ctl)->aux_data = NULL; \
|
|
(_ctl)->stcb = (in_it); \
|
|
(_ctl)->port_from = (in_it)->rport; \
|
|
(_ctl)->spec_flags = 0; \
|
|
(_ctl)->do_not_ref_stcb = 0; \
|
|
(_ctl)->end_added = 0; \
|
|
(_ctl)->pdapi_aborted = 0; \
|
|
(_ctl)->some_taken = 0; \
|
|
} \
|
|
} 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 sctphdr *,
|
|
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
|