linux/net/rose/rose_subr.c

// SPDX-License-Identifier: GPL-2.0-or-later
/*
 *
 * Copyright (C) Jonathan Naylor G4KLX ([email protected])
 */
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/socket.h>
#include <linux/in.h>
#include <linux/kernel.h>
#include <linux/timer.h>
#include <linux/string.h>
#include <linux/sockios.h>
#include <linux/net.h>
#include <linux/slab.h>
#include <net/ax25.h>
#include <linux/inet.h>
#include <linux/netdevice.h>
#include <linux/skbuff.h>
#include <net/sock.h>
#include <net/tcp_states.h>
#include <linux/fcntl.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <net/rose.h>

static int rose_create_facilities(unsigned char *buffer, struct rose_sock *rose);

/*
 *	This routine purges all of the queues of frames.
 */
void rose_clear_queues(struct sock *sk)
{ … }

/*
 * This routine purges the input queue of those frames that have been
 * acknowledged. This replaces the boxes labelled "V(a) <- N(r)" on the
 * SDL diagram.
 */
void rose_frames_acked(struct sock *sk, unsigned short nr)
{ … }

void rose_requeue_frames(struct sock *sk)
{ … }

/*
 *	Validate that the value of nr is between va and vs. Return true or
 *	false for testing.
 */
int rose_validate_nr(struct sock *sk, unsigned short nr)
{ … }

/*
 *  This routine is called when the packet layer internally generates a
 *  control frame.
 */
void rose_write_internal(struct sock *sk, int frametype)
{ … }

int rose_decode(struct sk_buff *skb, int *ns, int *nr, int *q, int *d, int *m)
{ … }

static int rose_parse_national(unsigned char *p, struct rose_facilities_struct *facilities, int len)
{ … }

static int rose_parse_ccitt(unsigned char *p, struct rose_facilities_struct *facilities, int len)
{ … }

int rose_parse_facilities(unsigned char *p, unsigned packet_len,
	struct rose_facilities_struct *facilities)
{ … }

static int rose_create_facilities(unsigned char *buffer, struct rose_sock *rose)
{ … }

void rose_disconnect(struct sock *sk, int reason, int cause, int diagnostic)
{ … }