device:04
  +   ˆl–Ü4ý( ©³( 	Å€fàB¦-ÿÃ„qç‚×_†I|¥+ÂÁ ?÷     /* 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.
 *
 * This file is part of the SCTP kernel implementation
 *
 * Please send any bug reports or fixes you make to the
 * email addresses:
 *    lksctp developers <linux-sctp@vger.kernel.org>
 *
 * Written or modified by:
 *    Randall Stewart	    <randall@sctp.chicago.il.us>
 *    Ken Morneau	    <kmorneau@cisco.com>
 *    Qiaobing Xie	    <qxie1@email.mot.com>
 *    La Monte H.P. Yarroll <piggy@acm.org>
 *    Karl Knutson	    <karl@athena.chicago.il.us>
 *    Jon Grimm		    <jgrimm@us.ibm.com>
 *    Xingang Guo	    <xingang.guo@intel.com>
 *    Hui Huang		    <hui.huang@nokia.com>
 *    Sridhar Samudrala	    <sri@us.ibm.com>
 *    Daisy Chang	    <daisyc@us.ibm.com>
 *    Dajiang Zhang	    <dajiang.zhang@nokia.com>
 *    Ardelle Fan	    <ardelle.fan@intel.com>
 *    Ryan Layer	    <rmlayer@us.ibm.com>
 *    Anup Pemmaiah	    <pemmaiah@cc.usu.edu>
 *    Kevin Gao             <kevin.gao@intel.com>
 */

#ifndef __sctp_structs_h__
#define __sctp_structs_h__

#include <linux/ktime.h>
#include <linux/generic-radix-tree.h>
#include <linux/rhashtable-types.h>
#include <linux/socket.h>	/* linux/in.h needs this!!    */
#include <linux/in.h>		/* We get struct sockaddr_in. */
#include <linux/in6.h>		/* We get struct in6_addr     */
#include <linux/ipv6.h>
#include <asm/param.h>		/* We get MAXHOSTNAMELEN.     */
#include <linux/atomic.h>		/* This gets us atomic counters.  */
#include <linux/skbuff.h>	/* We need sk_buff_head. */
#include <linux/workqueue.h>	/* We need tq_struct.	 */
#include <linux/sctp.h>		/* We need sctp* header structs.  */
#include <net/sctp/auth.h>	/* We need auth specific structs */
#include <net/ip.h>		/* For inet_skb_parm */

/* A convenience structure for handling sockaddr structures.
 * We should wean ourselves off this.
 */
union sctp_addr {
	struct sockaddr_in v4;
	struct sockaddr_in6 v6;
	struct sockaddr sa;
};

/* Forward declarations for data structures. */
struct sctp_globals;
struct sctp_endpoint;
struct sctp_association;
struct sctp_transport;
struct sctp_packet;
struct sctp_chunk;
struct sctp_inq;
struct sctp_outq;
struct sctp_bind_addr;
struct sctp_ulpq;
struct sctp_ep_common;
struct crypto_shash;
struct sctp_stream;


#include <net/sctp/tsnmap.h>
#include <net/sctp/ulpevent.h>
#include <net/sctp/ulpqueue.h>
#include <net/sctp/stream_interleave.h>

/* Structures useful for managing bind/connect. */

struct sctp_bind_bucket {
	unsigned short	port;
	signed char	fastreuse;
	signed char	fastreuseport;
	kuid_t		fastuid;
	struct hlist_node	node;
	struct hlist_head	owner;
	struct net	*net;
};

struct sctp_bind_hashbucket {
	spinlock_t	lock;
	struct hlist_head	chain;
};

/* Used for hashing all associations.  */
struct sctp_hashbucket {
	rwlock_t	lock;
	struct hlist_head	chain;
} __attribute__((__aligned__(8)));


/* The SCTP globals structure. */
extern struct sctp_globals {
	/* This is a list of groups of functions for each address
	 * family that we support.
	 */
	struct list_head address_families;

	/* This is the hash of all endpoints. */
	struct sctp_hashbucket *ep_hashtable;
	/* This is the sctp port control hash.	*/
	struct sctp_bind_hashbucket *port_hashtable;
	/* This is the hash of all transports. */
	struct rhltable transport_hashtable;

	/* Sizes of above hashtables. */
	int ep_hashsize;
	int port_hashsize;

	/* Default initialization values to be applied to new associations. */
	__u16 max_instreams;
	__u16 max_outstreams;

	/* Flag to indicate whether computing and verifying checksum
	 * is disabled. */
        bool checksum_disable;
} sctp_globals;

#define sctp_max_instreams		(sctp_globals.max_instreams)
#define sctp_max_outstreams		(sctp_globals.max_outstreams)
#define sctp_address_families		(sctp_globals.address_families)
#define sctp_ep_hashsize		(sctp_globals.ep_hashsize)
#define sctp_ep_ha