#include <linux/module.h>
#include <linux/uts.h>
#include <linux/utsname.h>
-#include <linux/version.h>
#include <linux/sysctl.h>
static void *get_uts(ctl_table *table, int write)
{
char *which = table->data;
-#ifdef CONFIG_UTS_NS
- struct uts_namespace *uts_ns = current->nsproxy->uts_ns;
+ struct uts_namespace *uts_ns;
+
+ uts_ns = current->nsproxy->uts_ns;
which = (which - (char *)&init_uts_ns) + (char *)uts_ns;
-#endif
+
if (!write)
down_read(&uts_sem);
else
up_write(&uts_sem);
}
-#ifdef CONFIG_PROC_FS
+#ifdef CONFIG_PROC_SYSCTL
/*
* Special case of dostring for the UTS structure. This has locks
* to observe. Should this be in kernel/sys.c ????
*/
-static int proc_do_uts_string(ctl_table *table, int write, struct file *filp,
+static int proc_do_uts_string(ctl_table *table, int write,
void __user *buffer, size_t *lenp, loff_t *ppos)
{
struct ctl_table uts_table;
int r;
memcpy(&uts_table, table, sizeof(uts_table));
uts_table.data = get_uts(table, write);
- r = proc_dostring(&uts_table,write,filp,buffer,lenp, ppos);
+ r = proc_dostring(&uts_table,write,buffer,lenp, ppos);
put_uts(table, write, uts_table.data);
return r;
}
#define proc_do_uts_string NULL
#endif
-
-#ifdef CONFIG_SYSCTL_SYSCALL
-/* The generic string strategy routine: */
-static int sysctl_uts_string(ctl_table *table, int __user *name, int nlen,
- void __user *oldval, size_t __user *oldlenp,
- void __user *newval, size_t newlen)
-{
- struct ctl_table uts_table;
- int r, write;
- write = newval && newlen;
- memcpy(&uts_table, table, sizeof(uts_table));
- uts_table.data = get_uts(table, write);
- r = sysctl_string(&uts_table, name, nlen,
- oldval, oldlenp, newval, newlen);
- put_uts(table, write, uts_table.data);
- return r;
-}
-#else
-#define sysctl_uts_string NULL
-#endif
-
static struct ctl_table uts_kern_table[] = {
{
- .ctl_name = KERN_OSTYPE,
.procname = "ostype",
.data = init_uts_ns.name.sysname,
.maxlen = sizeof(init_uts_ns.name.sysname),
.mode = 0444,
.proc_handler = proc_do_uts_string,
- .strategy = sysctl_uts_string,
},
{
- .ctl_name = KERN_OSRELEASE,
.procname = "osrelease",
.data = init_uts_ns.name.release,
.maxlen = sizeof(init_uts_ns.name.release),
.mode = 0444,
.proc_handler = proc_do_uts_string,
- .strategy = sysctl_uts_string,
},
{
- .ctl_name = KERN_VERSION,
.procname = "version",
.data = init_uts_ns.name.version,
.maxlen = sizeof(init_uts_ns.name.version),
.mode = 0444,
.proc_handler = proc_do_uts_string,
- .strategy = sysctl_uts_string,
},
{
- .ctl_name = KERN_NODENAME,
.procname = "hostname",
.data = init_uts_ns.name.nodename,
.maxlen = sizeof(init_uts_ns.name.nodename),
.mode = 0644,
.proc_handler = proc_do_uts_string,
- .strategy = sysctl_uts_string,
},
{
- .ctl_name = KERN_DOMAINNAME,
.procname = "domainname",
.data = init_uts_ns.name.domainname,
.maxlen = sizeof(init_uts_ns.name.domainname),
.mode = 0644,
.proc_handler = proc_do_uts_string,
- .strategy = sysctl_uts_string,
},
{}
};
static struct ctl_table uts_root_table[] = {
{
- .ctl_name = CTL_KERN,
.procname = "kernel",
.mode = 0555,
.child = uts_kern_table,
static int __init utsname_sysctl_init(void)
{
- register_sysctl_table(uts_root_table, 0);
+ register_sysctl_table(uts_root_table);
return 0;
}