/* 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 <linux-sctp@vger.kernel.org> * * Written or modified by: *   Jon Grimm             <jgrimm@us.ibm.com> *   La Monte H.P. Yarroll <piggy@acm.org> *   Sridhar Samudrala     <sri@us.ibm.com> */ #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. */void sctp_ulpq_init(struct sctp_ulpq *ulpq, struct sctp_association *asoc);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__ */