linux-stable/net/ax25/sysctl_net_ax25.c
Thomas Gleixner 2874c5fd28 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
Based on 1 normalized pattern(s):

  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

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 3029 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:32 -07:00

181 lines
4.3 KiB
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
*
* Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com)
*/
#include <linux/mm.h>
#include <linux/slab.h>
#include <linux/sysctl.h>
#include <linux/spinlock.h>
#include <net/ax25.h>
static int min_ipdefmode[1], max_ipdefmode[] = {1};
static int min_axdefmode[1], max_axdefmode[] = {1};
static int min_backoff[1], max_backoff[] = {2};
static int min_conmode[1], max_conmode[] = {2};
static int min_window[] = {1}, max_window[] = {7};
static int min_ewindow[] = {1}, max_ewindow[] = {63};
static int min_t1[] = {1}, max_t1[] = {30000};
static int min_t2[] = {1}, max_t2[] = {20000};
static int min_t3[1], max_t3[] = {3600000};
static int min_idle[1], max_idle[] = {65535000};
static int min_n2[] = {1}, max_n2[] = {31};
static int min_paclen[] = {1}, max_paclen[] = {512};
static int min_proto[1], max_proto[] = { AX25_PROTO_MAX };
#ifdef CONFIG_AX25_DAMA_SLAVE
static int min_ds_timeout[1], max_ds_timeout[] = {65535000};
#endif
static const struct ctl_table ax25_param_table[] = {
{
.procname = "ip_default_mode",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_ipdefmode,
.extra2 = &max_ipdefmode
},
{
.procname = "ax25_default_mode",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_axdefmode,
.extra2 = &max_axdefmode
},
{
.procname = "backoff_type",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_backoff,
.extra2 = &max_backoff
},
{
.procname = "connect_mode",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_conmode,
.extra2 = &max_conmode
},
{
.procname = "standard_window_size",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_window,
.extra2 = &max_window
},
{
.procname = "extended_window_size",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_ewindow,
.extra2 = &max_ewindow
},
{
.procname = "t1_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_t1,
.extra2 = &max_t1
},
{
.procname = "t2_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_t2,
.extra2 = &max_t2
},
{
.procname = "t3_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_t3,
.extra2 = &max_t3
},
{
.procname = "idle_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_idle,
.extra2 = &max_idle
},
{
.procname = "maximum_retry_count",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_n2,
.extra2 = &max_n2
},
{
.procname = "maximum_packet_length",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_paclen,
.extra2 = &max_paclen
},
{
.procname = "protocol",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_proto,
.extra2 = &max_proto
},
#ifdef CONFIG_AX25_DAMA_SLAVE
{
.procname = "dama_slave_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &min_ds_timeout,
.extra2 = &max_ds_timeout
},
#endif
{ } /* that's all, folks! */
};
int ax25_register_dev_sysctl(ax25_dev *ax25_dev)
{
char path[sizeof("net/ax25/") + IFNAMSIZ];
int k;
struct ctl_table *table;
table = kmemdup(ax25_param_table, sizeof(ax25_param_table), GFP_KERNEL);
if (!table)
return -ENOMEM;
for (k = 0; k < AX25_MAX_VALUES; k++)
table[k].data = &ax25_dev->values[k];
snprintf(path, sizeof(path), "net/ax25/%s", ax25_dev->dev->name);
ax25_dev->sysheader = register_net_sysctl(&init_net, path, table);
if (!ax25_dev->sysheader) {
kfree(table);
return -ENOMEM;
}
return 0;
}
void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev)
{
struct ctl_table_header *header = ax25_dev->sysheader;
struct ctl_table *table;
if (header) {
ax25_dev->sysheader = NULL;
table = header->ctl_table_arg;
unregister_net_sysctl_table(header);
kfree(table);
}
}