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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /* SCTP kernel implementation
- * (C) Copyright IBM Corp. 2001, 2004
- * Copyright (c) 1999-2000 Cisco, Inc.
- * Copyright (c) 1999-2001 Motorola, Inc.
- * Copyright (c) 2001 Intel Corp.
- * Copyright (c) 2001 Nokia, Inc.
- * Copyright (c) 2001 La Monte H.P. Yarroll
- *
- * These are the definitions needed for the sctp_ulpq type. The
- * sctp_ulpq is the interface between the Upper Layer Protocol, or ULP,
- * and the core SCTP state machine. This is the component which handles
- * reassembly and ordering.
- *
- * Please send any bug reports or fixes you make to the
- * email addresses:
- * lksctp developers <[email protected]>
- *
- * Written or modified by:
- * Jon Grimm <[email protected]>
- * La Monte H.P. Yarroll <[email protected]>
- * Sridhar Samudrala <[email protected]>
- */
- #ifndef __sctp_ulpqueue_h__
- #define __sctp_ulpqueue_h__
- /* A structure to carry information to the ULP (e.g. Sockets API) */
- struct sctp_ulpq {
- char pd_mode;
- struct sctp_association *asoc;
- struct sk_buff_head reasm;
- struct sk_buff_head reasm_uo;
- struct sk_buff_head lobby;
- };
- /* Prototypes. */
- struct sctp_ulpq *sctp_ulpq_init(struct sctp_ulpq *,
- struct sctp_association *);
- void sctp_ulpq_flush(struct sctp_ulpq *ulpq);
- void sctp_ulpq_free(struct sctp_ulpq *);
- /* Add a new DATA chunk for processing. */
- int sctp_ulpq_tail_data(struct sctp_ulpq *, struct sctp_chunk *, gfp_t);
- /* Add a new event for propagation to the ULP. */
- int sctp_ulpq_tail_event(struct sctp_ulpq *, struct sk_buff_head *skb_list);
- /* Renege previously received chunks. */
- void sctp_ulpq_renege(struct sctp_ulpq *, struct sctp_chunk *, gfp_t);
- /* Perform partial delivery. */
- void sctp_ulpq_partial_delivery(struct sctp_ulpq *, gfp_t);
- /* Abort the partial delivery. */
- void sctp_ulpq_abort_pd(struct sctp_ulpq *, gfp_t);
- /* Clear the partial data delivery condition on this socket. */
- int sctp_clear_pd(struct sock *sk, struct sctp_association *asoc);
- /* Skip over an SSN. */
- void sctp_ulpq_skip(struct sctp_ulpq *ulpq, __u16 sid, __u16 ssn);
- void sctp_ulpq_reasm_flushtsn(struct sctp_ulpq *, __u32);
- __u16 sctp_ulpq_renege_list(struct sctp_ulpq *ulpq,
- struct sk_buff_head *list, __u16 needed);
- #endif /* __sctp_ulpqueue_h__ */
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