Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / ax25 / sysctl_net_ax25.c

diff --git a/kernel/net/ax25/sysctl_net_ax25.c b/kernel/net/ax25/sysctl_net_ax25.c
new file mode 100644 (file)
index 0000000..919a5ce
--- /dev/null
+++ b/kernel/net/ax25/sysctl_net_ax25.c
@@ -0,0 +1,184 @@
+/*
+ * 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/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);
+       }
+}