149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
/* sysctls for configuring RxRPC operating parameters
|
|
*
|
|
* Copyright (C) 2014 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 Licence
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the Licence, or (at your option) any later version.
|
|
*/
|
|
|
|
#include <linux/sysctl.h>
|
|
#include <net/sock.h>
|
|
#include <net/af_rxrpc.h>
|
|
#include "ar-internal.h"
|
|
|
|
static struct ctl_table_header *rxrpc_sysctl_reg_table;
|
|
static const unsigned int zero = 0;
|
|
static const unsigned int one = 1;
|
|
static const unsigned int four = 4;
|
|
static const unsigned int thirtytwo = 32;
|
|
static const unsigned int n_65535 = 65535;
|
|
static const unsigned int n_max_acks = RXRPC_MAXACKS;
|
|
|
|
/*
|
|
* RxRPC operating parameters.
|
|
*
|
|
* See Documentation/networking/rxrpc.txt and the variable definitions for more
|
|
* information on the individual parameters.
|
|
*/
|
|
static struct ctl_table rxrpc_sysctl_table[] = {
|
|
/* Values measured in milliseconds */
|
|
{
|
|
.procname = "req_ack_delay",
|
|
.data = &rxrpc_requested_ack_delay,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_ms_jiffies,
|
|
.extra1 = (void *)&zero,
|
|
},
|
|
{
|
|
.procname = "soft_ack_delay",
|
|
.data = &rxrpc_soft_ack_delay,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_ms_jiffies,
|
|
.extra1 = (void *)&one,
|
|
},
|
|
{
|
|
.procname = "idle_ack_delay",
|
|
.data = &rxrpc_idle_ack_delay,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_ms_jiffies,
|
|
.extra1 = (void *)&one,
|
|
},
|
|
{
|
|
.procname = "resend_timeout",
|
|
.data = &rxrpc_resend_timeout,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_ms_jiffies,
|
|
.extra1 = (void *)&one,
|
|
},
|
|
|
|
/* Values measured in seconds but used in jiffies */
|
|
{
|
|
.procname = "max_call_lifetime",
|
|
.data = &rxrpc_max_call_lifetime,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_jiffies,
|
|
.extra1 = (void *)&one,
|
|
},
|
|
{
|
|
.procname = "dead_call_expiry",
|
|
.data = &rxrpc_dead_call_expiry,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_jiffies,
|
|
.extra1 = (void *)&one,
|
|
},
|
|
|
|
/* Values measured in seconds */
|
|
{
|
|
.procname = "connection_expiry",
|
|
.data = &rxrpc_connection_expiry,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_minmax,
|
|
.extra1 = (void *)&one,
|
|
},
|
|
|
|
/* Non-time values */
|
|
{
|
|
.procname = "max_backlog",
|
|
.data = &rxrpc_max_backlog,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_minmax,
|
|
.extra1 = (void *)&four,
|
|
.extra2 = (void *)&thirtytwo,
|
|
},
|
|
{
|
|
.procname = "rx_window_size",
|
|
.data = &rxrpc_rx_window_size,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_minmax,
|
|
.extra1 = (void *)&one,
|
|
.extra2 = (void *)&n_max_acks,
|
|
},
|
|
{
|
|
.procname = "rx_mtu",
|
|
.data = &rxrpc_rx_mtu,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_minmax,
|
|
.extra1 = (void *)&one,
|
|
.extra2 = (void *)&n_65535,
|
|
},
|
|
{
|
|
.procname = "rx_jumbo_max",
|
|
.data = &rxrpc_rx_jumbo_max,
|
|
.maxlen = sizeof(unsigned int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec_minmax,
|
|
.extra1 = (void *)&one,
|
|
.extra2 = (void *)&four,
|
|
},
|
|
|
|
{ }
|
|
};
|
|
|
|
int __init rxrpc_sysctl_init(void)
|
|
{
|
|
rxrpc_sysctl_reg_table = register_net_sysctl(&init_net, "net/rxrpc",
|
|
rxrpc_sysctl_table);
|
|
if (!rxrpc_sysctl_reg_table)
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|
|
|
|
void rxrpc_sysctl_exit(void)
|
|
{
|
|
if (rxrpc_sysctl_reg_table)
|
|
unregister_net_sysctl_table(rxrpc_sysctl_reg_table);
|
|
}
|