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usr
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src
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linux-headers-6.8.0-88
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include
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net
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sctp
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Filename :
ulpqueue.h
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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 <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__ */