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Diffstat (limited to 'net/ax25/sysctl_net_ax25.c')
-rw-r--r--net/ax25/sysctl_net_ax25.c159
1 files changed, 50 insertions, 109 deletions
diff --git a/net/ax25/sysctl_net_ax25.c b/net/ax25/sysctl_net_ax25.c
index f597987b242..919a5ce4751 100644
--- a/net/ax25/sysctl_net_ax25.c
+++ b/net/ax25/sysctl_net_ax25.c
@@ -7,6 +7,7 @@
* 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>
@@ -24,220 +25,160 @@ 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 struct ctl_table_header *ax25_table_header;
-
-static ctl_table *ax25_table;
-static int ax25_table_size;
-
-static struct ctl_path ax25_path[] = {
- { .procname = "net", .ctl_name = CTL_NET, },
- { .procname = "ax25", .ctl_name = NET_AX25, },
- { }
-};
-static const ctl_table ax25_param_table[] = {
+static const struct 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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.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,
+ .proc_handler = proc_dointvec_minmax,
.extra1 = &min_proto,
.extra2 = &max_proto
},
+#ifdef CONFIG_AX25_DAMA_SLAVE
{
- .ctl_name = NET_AX25_DAMA_SLAVE_TIMEOUT,
.procname = "dama_slave_timeout",
.maxlen = sizeof(int),
.mode = 0644,
- .proc_handler = &proc_dointvec_minmax,
- .strategy = &sysctl_intvec,
+ .proc_handler = proc_dointvec_minmax,
.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 = kzalloc(ax25_table_size, GFP_ATOMIC)) == NULL) {
- spin_unlock_bh(&ax25_dev_lock);
- return;
- }
-
- for (n = 0, ax25_dev = ax25_dev_list; ax25_dev != NULL; ax25_dev = ax25_dev->next) {
- struct ctl_table *child = kmemdup(ax25_param_table,
- 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;
- }
- 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];
+ { } /* that's all, folks! */
+};
- n++;
+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;
}
- spin_unlock_bh(&ax25_dev_lock);
-
- ax25_table_header = register_sysctl_paths(ax25_path, ax25_table);
+ return 0;
}
-void ax25_unregister_sysctl(void)
+void ax25_unregister_dev_sysctl(ax25_dev *ax25_dev)
{
- ctl_table *p;
- unregister_sysctl_table(ax25_table_header);
-
- for (p = ax25_table; p->ctl_name; p++)
- kfree(p->child);
- kfree(ax25_table);
+ 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);
+ }
}
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