/*
* 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.
*
* Copyright (C) 1996 Mike Shaver (shaver@zeroknowledge.com)
*/
#include <linux/mm.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 };
static int min_ds_timeout[1], max_ds_timeout[] = {65535000};
static struct ctl_table_header *ax25_table_header;
static ctl_table *ax25_table;
static int ax25_table_size;
static ctl_table ax25_dir_table[] = {
{
.ctl_name = NET_AX25,
.procname = "ax25",
.mode = 0555,
},
{ .ctl_name = 0 }
};
static ctl_table ax25_root_table[] = {
{
.ctl_name = CTL_NET,
.procname = "net",
.mode = 0555,
.child = ax25_dir_table
},
{ .ctl_name = 0 }
};
static const ctl_table ax25_param_table[] = {
{
.ctl_name = NET_AX25_IP_DEFAULT_MODE,
.procname = "ip_default_mode",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_ipdefmode,
.extra2 = &max_ipdefmode
},
{
.ctl_name = NET_AX25_DEFAULT_MODE,
.procname = "ax25_default_mode",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_axdefmode,
.extra2 = &max_axdefmode
},
{
.ctl_name = NET_AX25_BACKOFF_TYPE,
.procname = "backoff_type",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_backoff,
.extra2 = &max_backoff
},
{
.ctl_name = NET_AX25_CONNECT_MODE,
.procname = "connect_mode",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_conmode,
.extra2 = &max_conmode
},
{
.ctl_name = NET_AX25_STANDARD_WINDOW,
.procname = "standard_window_size",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_window,
.extra2 = &max_window
},
{
.ctl_name = NET_AX25_EXTENDED_WINDOW,
.procname = "extended_window_size",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_ewindow,
.extra2 = &max_ewindow
},
{
.ctl_name = NET_AX25_T1_TIMEOUT,
.procname = "t1_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_t1,
.extra2 = &max_t1
},
{
.ctl_name = NET_AX25_T2_TIMEOUT,
.procname = "t2_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_t2,
.extra2 = &max_t2
},
{
.ctl_name = NET_AX25_T3_TIMEOUT,
.procname = "t3_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_t3,
.extra2 = &max_t3
},
{
.ctl_name = NET_AX25_IDLE_TIMEOUT,
.procname = "idle_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_idle,
.extra2 = &max_idle
},
{
.ctl_name = NET_AX25_N2,
.procname = "maximum_retry_count",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_n2,
.extra2 = &max_n2
},
{
.ctl_name = NET_AX25_PACLEN,
.procname = "maximum_packet_length",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_paclen,
.extra2 = &max_paclen
},
{
.ctl_name = NET_AX25_PROTOCOL,
.procname = "protocol",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_proto,
.extra2 = &max_proto
},
{
.ctl_name = NET_AX25_DAMA_SLAVE_TIMEOUT,
.procname = "dama_slave_timeout",
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &min_ds_timeout,
.extra2 = &max_ds_timeout
},
{ .ctl_name = 0 } /* that's all, folks! */
};
void ax25_register_sysctl(void)
{
ax25_dev *ax25_dev;
int n, k;
spin_lock_bh(&ax25_dev_lock);
for (ax25_table_size = sizeof(ctl_table), ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next)
ax25_table_size += sizeof(ctl_table);
if ((ax25_table = kmalloc(ax25_table_size, GFP_ATOMIC)) == NULL) {
spin_unlock_bh(&ax25_dev_lock);
return;
}
memset(ax25_table, 0x00, ax25_table_size);
for (n = 0, ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) {
ctl_table *child = kmalloc(sizeof(ax25_param_table), GFP_ATOMIC);
if (!child) {
while (n--)
kfree(ax25_table[n].child);
kfree(ax25_table);
spin_unlock_bh(&ax25_dev_lock);
return;
}
memcpy(child, ax25_param_table, sizeof(ax25_param_table));
ax25_table[n].child = ax25_dev->systable = child;
ax25_table[n].ctl_name = n + 1;
ax25_table[n].procname = ax25_dev->dev->name;
ax25_table[n].mode = 0555;
#ifndef CONFIG_AX25_DAMA_SLAVE
/*
* We do not wish to have a representation of this parameter
* in /proc/sys/ when configured *not* to include the
* AX.25 DAMA slave code, do we?
*/
child[AX25_VALUES_DS_TIMEOUT].procname = NULL;
#endif
child[AX25_MAX_VALUES].ctl_name = 0; /* just in case... */
for (k = 0; k < AX25_MAX_VALUES; k++)
child[k].data = &ax25_dev->values[k];
n++;
}
spin_unlock_bh(&ax25_dev_lock);
ax25_dir_table[0].child = ax25_table;
ax25_table_header = register_sysctl_table(ax25_root_table, 1);
}
void ax25_unregister_sysctl(void)
{
ctl_table *p;
unregister_sysctl_table(ax25_table_header);
ax25_dir_table[0].child = NULL;
for (p = ax25_table; p->ctl_name; p++)
kfree(p->child);
kfree(ax25_table);
}
