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Diffstat (limited to 'net/ax25/sysctl_net_ax25.c')
-rw-r--r--net/ax25/sysctl_net_ax25.c262
1 files changed, 262 insertions, 0 deletions
diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
new file mode 100644
index 000000000000..f67711f2ee96
--- /dev/null
+++ b/net/ax25/sysctl_net_ax25.c
@@ -0,0 +1,262 @@
+/*
+ * 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/config.h>
+#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[] = {30 * HZ};
+static int min_t2[] = {1}, max_t2[] = {20 * HZ};
+static int min_t3[1], max_t3[] = {3600 * HZ};
+static int min_idle[1], max_idle[] = {65535 * HZ};
+static int min_n2[] = {1}, max_n2[] = {31};
+static int min_paclen[] = {1}, max_paclen[] = {512};
+static int min_proto[1], max_proto[] = {3};
+static int min_ds_timeout[1], 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[] = {
+ {
+ .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);
+}