1 /* SCTP kernel reference Implementation
2 * (C) Copyright IBM Corp. 2001, 2004
3 * Copyright (c) 1999-2000 Cisco, Inc.
4 * Copyright (c) 1999-2001 Motorola, Inc.
5 * Copyright (c) 2001 Intel Corp.
6 * Copyright (c) 2001 Nokia, Inc.
7 * Copyright (c) 2001 La Monte H.P. Yarroll
9 * These are the definitions needed for the sctp_ulpq type. The
10 * sctp_ulpq is the interface between the Upper Layer Protocol, or ULP,
11 * and the core SCTP state machine. This is the component which handles
12 * reassembly and ordering.
14 * The SCTP reference implementation is free software;
15 * you can redistribute it and/or modify it under the terms of
16 * the GNU General Public License as published by
17 * the Free Software Foundation; either version 2, or (at your option)
20 * the SCTP reference implementation is distributed in the hope that it
21 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
22 * ************************
23 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
24 * See the GNU General Public License for more details.
26 * You should have received a copy of the GNU General Public License
27 * along with GNU CC; see the file COPYING. If not, write to
28 * the Free Software Foundation, 59 Temple Place - Suite 330,
29 * Boston, MA 02111-1307, USA.
31 * Please send any bug reports or fixes you make to the
33 * lksctp developers <lksctp-developers@lists.sourceforge.net>
35 * Or submit a bug report through the following website:
36 * http://www.sf.net/projects/lksctp
38 * Written or modified by:
39 * Jon Grimm <jgrimm@us.ibm.com>
40 * La Monte H.P. Yarroll <piggy@acm.org>
41 * Sridhar Samudrala <sri@us.ibm.com>
43 * Any bugs reported given to us we will try to fix... any fixes shared will
44 * be incorporated into the next SCTP release.
47 #ifndef __sctp_ulpqueue_h__
48 #define __sctp_ulpqueue_h__
50 /* A structure to carry information to the ULP (e.g. Sockets API) */
54 struct sctp_association *asoc;
55 struct sk_buff_head reasm;
56 struct sk_buff_head lobby;
60 struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *,
61 struct sctp_association *);
62 void sctp_ulpq_flush(struct sctp_ulpq *ulpq);
63 void sctp_ulpq_free(struct sctp_ulpq *);
65 /* Add a new DATA chunk for processing. */
66 int sctp_ulpq_tail_data(struct sctp_ulpq *, struct sctp_chunk *, gfp_t);
68 /* Add a new event for propagation to the ULP. */
69 int sctp_ulpq_tail_event(struct sctp_ulpq *, struct sctp_ulpevent *ev);
71 /* Renege previously received chunks. */
72 void sctp_ulpq_renege(struct sctp_ulpq *, struct sctp_chunk *, gfp_t);
74 /* Perform partial delivery. */
75 void sctp_ulpq_partial_delivery(struct sctp_ulpq *, struct sctp_chunk *, gfp_t);
77 /* Abort the partial delivery. */
78 void sctp_ulpq_abort_pd(struct sctp_ulpq *, gfp_t);
80 /* Clear the partial data delivery condition on this socket. */
81 int sctp_clear_pd(struct sock *sk, struct sctp_association *asoc);
83 /* Skip over an SSN. */
84 void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn);
86 void sctp_ulpq_reasm_flushtsn(struct sctp_ulpq *, __u32);
87 #endif /* __sctp_ulpqueue_h__ */