88 строки
1.9 KiB
C
88 строки
1.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
#include <linux/sysctl.h>
|
|
#include <linux/slab.h>
|
|
#include <net/net_namespace.h>
|
|
#include <net/xfrm.h>
|
|
|
|
static void __net_init __xfrm_sysctl_init(struct net *net)
|
|
{
|
|
net->xfrm.sysctl_aevent_etime = XFRM_AE_ETIME;
|
|
net->xfrm.sysctl_aevent_rseqth = XFRM_AE_SEQT_SIZE;
|
|
net->xfrm.sysctl_larval_drop = 1;
|
|
net->xfrm.sysctl_acq_expires = 30;
|
|
}
|
|
|
|
#ifdef CONFIG_SYSCTL
|
|
static struct ctl_table xfrm_table[] = {
|
|
{
|
|
.procname = "xfrm_aevent_etime",
|
|
.maxlen = sizeof(u32),
|
|
.mode = 0644,
|
|
.proc_handler = proc_douintvec
|
|
},
|
|
{
|
|
.procname = "xfrm_aevent_rseqth",
|
|
.maxlen = sizeof(u32),
|
|
.mode = 0644,
|
|
.proc_handler = proc_douintvec
|
|
},
|
|
{
|
|
.procname = "xfrm_larval_drop",
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec
|
|
},
|
|
{
|
|
.procname = "xfrm_acq_expires",
|
|
.maxlen = sizeof(int),
|
|
.mode = 0644,
|
|
.proc_handler = proc_dointvec
|
|
},
|
|
{}
|
|
};
|
|
|
|
int __net_init xfrm_sysctl_init(struct net *net)
|
|
{
|
|
struct ctl_table *table;
|
|
|
|
__xfrm_sysctl_init(net);
|
|
|
|
table = kmemdup(xfrm_table, sizeof(xfrm_table), GFP_KERNEL);
|
|
if (!table)
|
|
goto out_kmemdup;
|
|
table[0].data = &net->xfrm.sysctl_aevent_etime;
|
|
table[1].data = &net->xfrm.sysctl_aevent_rseqth;
|
|
table[2].data = &net->xfrm.sysctl_larval_drop;
|
|
table[3].data = &net->xfrm.sysctl_acq_expires;
|
|
|
|
/* Don't export sysctls to unprivileged users */
|
|
if (net->user_ns != &init_user_ns)
|
|
table[0].procname = NULL;
|
|
|
|
net->xfrm.sysctl_hdr = register_net_sysctl(net, "net/core", table);
|
|
if (!net->xfrm.sysctl_hdr)
|
|
goto out_register;
|
|
return 0;
|
|
|
|
out_register:
|
|
kfree(table);
|
|
out_kmemdup:
|
|
return -ENOMEM;
|
|
}
|
|
|
|
void __net_exit xfrm_sysctl_fini(struct net *net)
|
|
{
|
|
struct ctl_table *table;
|
|
|
|
table = net->xfrm.sysctl_hdr->ctl_table_arg;
|
|
unregister_net_sysctl_table(net->xfrm.sysctl_hdr);
|
|
kfree(table);
|
|
}
|
|
#else
|
|
int __net_init xfrm_sysctl_init(struct net *net)
|
|
{
|
|
__xfrm_sysctl_init(net);
|
|
return 0;
|
|
}
|
|
#endif
|