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sysfs.c
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sysfs.c
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/* Copyright 2015 [email protected] (Yiyuan Zhong)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <net/net_namespace.h>
#include "fullnat.h"
static int one = 1;
static int zero = 0;
static struct ctl_table_header *g_header;
static struct ctl_table sysfs_table[] __read_mostly = {
{
.procname = "tcp6_mode",
.data = &g_mode_tcp6,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &zero,
},
{
.procname = "tcp_mode",
.data = &g_mode_tcp,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &one,
},
{
.procname = "udp6_mode",
.data = &g_mode_udp6,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &zero,
},
{
.procname = "udp_mode",
.data = &g_mode_udp,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = &zero,
.extra2 = &zero,
},
{}
};
int sysfs_initialize(void)
{
g_header = register_net_sysctl(&init_net, "net/fullnat", sysfs_table);
if (!g_header) {
return -ENOMEM;
}
return 0;
}
void sysfs_shutdown(void)
{
unregister_net_sysctl_table(g_header);
}