From: dlezcano@fr.ibm.com
To: containers@lists.osdl.org
Cc: netdev@vger.kernel.org
Subject: [patch 02/12] net namespace : store L2 parent namespace
Date: Fri, 19 Jan 2007 16:47:16 +0100 [thread overview]
Message-ID: <20070119155344.598687044@localhost.localdomain> (raw)
In-Reply-To: 20070119154714.439706567@localhost.localdomain
[-- Attachment #1: net-namespace-l3-add-l2-parent.patch --]
[-- Type: text/plain, Size: 1721 bytes --]
From: Daniel Lezcano <dlezcano@fr.ibm.com>
All L3 namespaces are the final nodes of the L2 namespaces
tree. Because their share some ressources coming from the L2
namespace. The L2 parent namespace should be stored into the L3 child
when it is created.
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
---
include/linux/net_namespace.h | 1 +
net/core/net_namespace.c | 11 +++++++++++
2 files changed, 12 insertions(+)
Index: 2.6.20-rc4-mm1/include/linux/net_namespace.h
===================================================================
--- 2.6.20-rc4-mm1.orig/include/linux/net_namespace.h
+++ 2.6.20-rc4-mm1/include/linux/net_namespace.h
@@ -27,6 +27,7 @@
#define NET_NS_LEVEL2 1
#define NET_NS_LEVEL3 2
unsigned int level;
+ struct net_namespace *parent;
};
extern struct net_namespace init_net_ns;
Index: 2.6.20-rc4-mm1/net/core/net_namespace.c
===================================================================
--- 2.6.20-rc4-mm1.orig/net/core/net_namespace.c
+++ 2.6.20-rc4-mm1/net/core/net_namespace.c
@@ -22,6 +22,7 @@
.loopback_dev_p = NULL,
.pcpu_lstats_p = NULL,
.level = NET_NS_LEVEL2,
+ .parent = NULL,
};
#ifdef CONFIG_NET_NS
@@ -62,6 +63,12 @@
if (ip_fib_struct_init())
goto out_fib4;
}
+
+ if (level == NET_NS_LEVEL3) {
+ get_net_ns(old_ns);
+ ns->parent = old_ns;
+ }
+
ns->level = level;
if (loopback_init())
goto out_loopback;
@@ -126,8 +133,12 @@
ns, atomic_read(&ns->kref.refcount));
return;
}
+
if (ns->level == NET_NS_LEVEL2)
ip_fib_struct_cleanup(ns);
+ if (ns->level == NET_NS_LEVEL3)
+ put_net_ns(ns->parent);
+
printk(KERN_DEBUG "NET_NS: net namespace %p destroyed\n", ns);
kfree(ns);
}
--
next prev parent reply other threads:[~2007-01-19 16:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-19 15:47 [patch 00/12] net namespace : L3 namespace - introduction dlezcano
2007-01-19 15:47 ` [patch 01/12] net namespace : initialize init process to level 2 dlezcano
2007-01-19 15:47 ` dlezcano [this message]
2007-01-19 15:47 ` [patch 03/12] net namespace : share network ressources L2 with L3 dlezcano
2007-01-19 15:47 ` [patch 04/12] net namespace : isolate the inet device dlezcano
2007-01-19 15:47 ` [patch 05/12] net namespace : ioctl to push ifa to net namespace l3 dlezcano
2007-01-20 4:52 ` Herbert Poetzl
2007-01-20 11:48 ` Daniel Lezcano
2007-01-19 15:47 ` [patch 06/12] net namespace : check bind address dlezcano
2007-01-19 15:47 ` [patch 07/12] net namespace: set source addresse dlezcano
2007-01-19 15:47 ` [patch 08/12] net namespace : find namespace by addr dlezcano
2007-01-20 4:56 ` Herbert Poetzl
2007-01-19 15:47 ` [patch 09/12] net namespace : make loopback address always visible dlezcano
2007-01-19 15:47 ` [patch 10/12] net namespace : add the loopback isolation dlezcano
2007-01-19 15:47 ` [patch 11/12] net namespace : debugfs - add net_ns debugfs dlezcano
2007-01-19 15:47 ` [patch 12/12] net namespace : Add broadcasting dlezcano
2007-01-20 4:58 ` Herbert Poetzl
2007-01-20 11:54 ` Daniel Lezcano
2007-01-20 4:48 ` [patch 00/12] net namespace : L3 namespace - introduction Herbert Poetzl
2007-01-20 11:42 ` Daniel Lezcano
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