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/*
* sysctl_net_ax25.c: sysctl interface for NEW-AX.25
*
* Authors: Jens David (DG1KJD), Matthias Welwarsky (DG2FEF), Mike Shaver
*
* Comment: Needs cleanup, most parameters are not needed and/or should be au
* adjusting.
*
* Changelog:
*
* License: This module 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/mm.h>
#include <linux/sysctl.h>
#include <linux/proc_fs.h>
#include <linux/if_arp.h>
#include <net/ax25.h>
#include <net/ax25dev.h>
#include "ax25_ddi.h"
int ax25_proc_dointvec_minmax(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp);
int ax25_sysctl_intvec(ctl_table *table, int *name, int nlen, void *oldval,
size_t *oldlenp, void *newval, size_t newlen, void **context);
static int min_ipdefmode[] = {0}, max_ipdefmode[] = {1};
static int min_axdefmode[] = {0}, max_axdefmode[] = {1};
static int min_backoff[] = {0}, max_backoff[] = {2};
static int min_conmode[] = {0}, 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[] = {30 * AX25_SLOWHZ * 10};
static int min_t2[] = {0}, max_t2[] = {10 * AX25_SLOWHZ * 10};
static int min_t3[] = {0}, max_t3[] = {3600 * AX25_SLOWHZ * 10};
static int min_idle[] = {0}, max_idle[] = {65535 * AX25_SLOWHZ * 10};
static int min_n2[] = {1}, max_n2[] = {31};
static int min_paclen[] = {1}, max_paclen[] = {512};
static int min_protocol[] = {0}, max_protocol[] = {2};
static int min_dama_slave_timeout[] = {0}, max_dama_slave_timeout[] = {3600 * AX25_SLOWHZ};
static int min_media_duplex[] = {0}, max_media_duplex[] = {2};
static int min_media_txdelay[] = {0}, max_media_txdelay[] = {10000};
static int min_media_txtail[] = {0}, max_media_txtail[] = {10000};
static int min_media_txbitrate[] = {0}, max_media_txbitrate[] = {80000000};
static int min_media_rxbitrate[] = {0}, max_media_rxbitrate[] = {80000000};
static int min_media_slottime[] = {0}, max_media_slottime[] = {1000};
static int min_media_ppersist[] = {0}, max_media_ppersist[] = {255};
static int min_media_autoadj[] = {0}, max_media_autoadj[] = {1};
static struct ctl_table_header *ax25_table_header;
static ctl_table ax25_table[AX25_MAX_DEVICES + 1];
static ctl_table ax25_dir_table[] = {
{NET_AX25, "ax25", NULL, 0, 0555, ax25_table},
{0}
};
static ctl_table ax25_root_table[] = {
{CTL_NET, "net", NULL, 0, 0555, ax25_dir_table},
{0}
};
static const ctl_table ax25_param_table[] = {
{NET_AX25_IP_DEFAULT_MODE, "ip_default_mode",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_ipdefmode, &max_ipdefmode},
{NET_AX25_DEFAULT_MODE, "ax25_default_mode",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_axdefmode, &max_axdefmode},
{NET_AX25_BACKOFF_TYPE, "backoff_type",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_backoff, &max_backoff},
{NET_AX25_CONNECT_MODE, "connect_mode",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_conmode, &max_conmode},
{NET_AX25_STANDARD_WINDOW, "standard_window_size",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_window, &max_window},
{NET_AX25_EXTENDED_WINDOW, "extended_window_size",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_ewindow, &max_ewindow},
{NET_AX25_T1_TIMEOUT, "t1_timeout",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_t1, &max_t1},
{NET_AX25_T2_TIMEOUT, "t2_timeout",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_t2, &max_t2},
{NET_AX25_T3_TIMEOUT, "t3_timeout",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_t3, &max_t3},
{NET_AX25_IDLE_TIMEOUT, "idle_timeout",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_idle, &max_idle},
{NET_AX25_N2, "maximum_retry_count",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_n2, &max_n2},
{NET_AX25_PACLEN, "maximum_packet_length",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_paclen, &max_paclen},
{NET_AX25_PROTOCOL, "protocol",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_protocol, &max_protocol},
{NET_AX25_DAMA_SLAVE_TIMEOUT, "dama_slave_timeout",
NULL, sizeof(int), 0644, NULL,
&proc_dointvec_minmax, &sysctl_intvec, NULL,
&min_dama_slave_timeout, &max_dama_slave_timeout},
{NET_AX25_MEDIA_DUPLEX, "media_duplex",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_duplex, &max_media_duplex},
{NET_AX25_MEDIA_TXDELAY, "media_txdelay",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_txdelay, &max_media_txdelay},
{NET_AX25_MEDIA_TXTAIL, "media_txtail",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_txtail, &max_media_txtail},
{NET_AX25_MEDIA_TXBITRATE, "media_txbitrate",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_txbitrate, &max_media_txbitrate},
{NET_AX25_MEDIA_RXBITRATE, "media_rxbitrate",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_rxbitrate, &max_media_rxbitrate},
{NET_AX25_MEDIA_SLOTTIME, "media_slottime",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_slottime, &max_media_slottime},
{NET_AX25_MEDIA_PPERSISTENCE, "media_ppersistence",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_ppersist, &max_media_ppersist},
{NET_AX25_MEDIA_AUTO_ADJUST, "media_autoadjust",
NULL, sizeof(int), 0644, NULL,
&ax25_proc_dointvec_minmax, &ax25_sysctl_intvec, NULL,
&min_media_autoadj, &max_media_autoadj},
{0} /* that's all, folks! */
};
int ax25_proc_dointvec_minmax(ctl_table *table, int write, struct file *filp,
void *buffer, size_t *lenp)
{
int id = table->ctl_name;
int ret;
int oldval, newval;
struct net_device *dev;
oldval = * (int *) table->data;
ret = proc_dointvec_minmax(table, write, filp, buffer, lenp);
newval = * (int *) table->data;
if (oldval != newval) {
dev = dev_get(table->de->parent->name);
if (!dev) return ret; /* paranoia */
ax25_notify_dispatcher(dev, id-1, oldval, newval);
}
return ret;
}
int ax25_sysctl_intvec(ctl_table *table, int *name, int nlen, void *oldval,
size_t *oldlenp, void *newval, size_t newlen, void **context)
{
int id = table->ctl_name;
int ret;
struct net_device *dev;
ret = sysctl_intvec(table, name, nlen, oldval, oldlenp, newval,
newlen, context);
if (* (int *) oldval != * (int *) newval) {
dev = dev_get(table->de->parent->name);
if (!dev) return ret; /* paranoia */
ax25_notify_dispatcher(dev, id-1, * (int *) oldval, * (int *) newval);
}
return ret;
}
void ax25_register_sysctl(void)
{
struct net_device *dev;
struct ax25_dev *ax25_device;
int n, k, i;
memset(ax25_table, 0x00, (AX25_MAX_DEVICES + 1) * sizeof(ctl_table));
n = 0;
for (i = 0; i < AX25_MAX_DEVICES; i++) {
if ((dev = ax25_devices[i]) != NULL) {
ax25_device = AX25_PTR(dev);
if (n <= AX25_MAX_DEVICES) {
ax25_table[n].ctl_name = n + 1;
ax25_table[n].procname = dev->name;
ax25_table[n].data = NULL;
ax25_table[n].maxlen = 0;
ax25_table[n].mode = 0555;
ax25_table[n].child = ax25_device->systable;
ax25_table[n].proc_handler = NULL;
memcpy(ax25_device->systable, ax25_param_table, sizeof(ax25_device->systable));
ax25_device->systable[AX25_MAX_VALUES].ctl_name = 0; /* just in case... */
for (k = 0; k < AX25_MAX_VALUES; k++)
ax25_device->systable[k].data = &ax25_device->values[k];
n++;
}
}
}
ax25_table_header = register_sysctl_table(ax25_root_table, 1);
}
void ax25_unregister_sysctl(void)
{
unregister_sysctl_table(ax25_table_header);
}
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