/* -*- linux-c -*- * sysctl_net_ax25.c: sysctl interface to net AX.25 subsystem. * * Begun April 1, 1996, Mike Shaver. * Added /proc/sys/net/ax25 directory entry (empty =) ). [MS] */#include <linux/config.h>#include <linux/mm.h>#include <linux/sysctl.h>#include <net/ax25.h>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 * HZ};static int min_t2[] = {1},		max_t2[] = {20 * HZ};static int min_t3[] = {0},		max_t3[] = {3600 * HZ};static int min_idle[] = {0},		max_idle[] = {65535 * HZ};static int min_n2[] = {1},		max_n2[] = {31};static int min_paclen[] = {1},		max_paclen[] = {512};static int min_proto[] = {0},		max_proto[] = {3};static int min_ds_timeout[] = {0},	max_ds_timeout[] = {65535 * HZ};static struct ctl_table_header *ax25_table_header;static ctl_table *ax25_table;static int ax25_table_size;static ctl_table ax25_dir_table[] = {	{NET_AX25, "ax25", NULL, 0, 0555, NULL},	{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_proto, &max_proto},	{NET_AX25_DAMA_SLAVE_TIMEOUT, "dama_slave_timeout",	 NULL, sizeof(int), 0644, NULL,	 &proc_dointvec_minmax, &sysctl_intvec, NULL,	 &min_ds_timeout, &max_ds_timeout},	{0}	/* that's all, folks! */};void ax25_register_sysctl(void){	ax25_dev *ax25_dev;	int n, k;	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)		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);			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++;	}	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);}