linux-imx

/* /proc/net/ support for AF_RXRPC

 *

 * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.

 * Written by David Howells (dhowells@redhat.com)

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License

 * as published by the Free Software Foundation; either version

 * 2 of the License, or (at your option) any later version.

 */

​

#include <linux/module.h>

#include <net/sock.h>

#include <net/af_rxrpc.h>

#include "ar-internal.h"

​

static const char *const rxrpc_conn_states[RXRPC_CONN__NR_STATES] = {

    [RXRPC_CONN_UNUSED]         = "Unused  ",

    [RXRPC_CONN_CLIENT]         = "Client  ",

    [RXRPC_CONN_SERVICE_PREALLOC]       = "SvPrealc",

    [RXRPC_CONN_SERVICE_UNSECURED]      = "SvUnsec ",

    [RXRPC_CONN_SERVICE_CHALLENGING]    = "SvChall ",

    [RXRPC_CONN_SERVICE]            = "SvSecure",

    [RXRPC_CONN_REMOTELY_ABORTED]       = "RmtAbort",

    [RXRPC_CONN_LOCALLY_ABORTED]        = "LocAbort",

};

​

/*

 * generate a list of extant and dead calls in /proc/net/rxrpc_calls

 */

static void *rxrpc_call_seq_start(struct seq_file *seq, loff_t *_pos)

    __acquires(rcu)

    __acquires(rxnet->call_lock)

{

    struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));

​

    rcu_read_lock();

    read_lock(&rxnet->call_lock);

    return seq_list_start_head(&rxnet->calls, *_pos);

}

​

static void *rxrpc_call_seq_next(struct seq_file *seq, void *v, loff_t *pos)

{

    struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));

​

    return seq_list_next(v, &rxnet->calls, pos);

}

​

static void rxrpc_call_seq_stop(struct seq_file *seq, void *v)

    __releases(rxnet->call_lock)

    __releases(rcu)

{

    struct rxrpc_net *rxnet = rxrpc_net(seq_file_net(seq));

​

    read_unlock(&rxnet->call_lock);

    rcu_read_unlock();

}

​

static int rxrpc_call_seq_show(struct seq_file *seq, void *v)

{

    struct rxrpc_local *local;

    struct rxrpc_sock *rx;

    struct rxrpc_peer *peer;