[PATCH] namespaces: utsname: implement utsname namespaces

This patch defines the uts namespace and some manipulators.
Adds the uts namespace to task_struct, and initializes a
system-wide init namespace.

It leaves a #define for system_utsname so sysctl will compile.
This define will be removed in a separate patch.

[[email protected]: build fix, cleanup]
Signed-off-by: Serge Hallyn <[email protected]>
Cc: Kirill Korotaev <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: Andrey Savochkin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Serge E. Hallyn 2006-10-02 02:18:14 -07:00 • committed by Linus Torvalds
commit 4865ecf131
9 changed files with 121 additions and 12 deletions

View file

@ -182,6 +182,14 @@ config TASK_DELAY_ACCT
Say N if unsure.
config UTS_NS
bool "UTS Namespaces"
default n
help
Support uts namespaces. This allows containers, i.e.
vservers, to use uts namespaces to provide different
uts info for different servers. If unsure, say N.
config AUDIT
bool "Auditing support"
depends on NET

View file

@ -12,22 +12,27 @@
#include <linux/utsname.h>
#include <linux/utsrelease.h>
#include <linux/version.h>
#include <linux/sched.h>
#define version(a) Version_ ## a
#define version_string(a) version(a)
int version_string(LINUX_VERSION_CODE);
struct new_utsname system_utsname = {
.sysname = UTS_SYSNAME,
.nodename = UTS_NODENAME,
.release = UTS_RELEASE,
.version = UTS_VERSION,
.machine = UTS_MACHINE,
.domainname = UTS_DOMAINNAME,
struct uts_namespace init_uts_ns = {
.kref = {
.refcount = ATOMIC_INIT(2),
},
.name = {
.sysname = UTS_SYSNAME,
.nodename = UTS_NODENAME,
.release = UTS_RELEASE,
.version = UTS_VERSION,
.machine = UTS_MACHINE,
.domainname = UTS_DOMAINNAME,
},
};
EXPORT_SYMBOL(system_utsname);
EXPORT_SYMBOL_GPL(init_uts_ns);
const char linux_banner[] =
"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"