This allows the creation of more than one network namespace at boot time.
---
net/Kconfig | 7 +++++++
net/core/net_namespace.c | 19 ++++++++++++++++++-
2 files changed, 25 insertions(+), 1 deletions(-)
diff --git a/net/Kconfig b/net/Kconfig
index 8c3d97c..c896bdf 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -32,6 +32,13 @@ config NET_NS
Allow user space to create what appear to be multiple instances
of the network stack.
+config NET_NS_NR
+ int "Initial number of network namespaces"
+ default 1
+ depends on NET_NS
+ help
+ Number of network stacks to create at start-up.
+
source "net/packet/Kconfig"
source "net/unix/Kconfig"
source "net/xfrm/Kconfig"
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 596cb83..1cafa31 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -297,8 +297,25 @@ static int __init net_ns_init(void)
rtnl_unlock();
mutex_unlock(&net_mutex);
+
+#if defined(CONFIG_NET_NS) && CONFIG_NET_NS_NR > 1
+ /* Create additional initial namespaces */
+ {
+ struct net *net;
+ int i;
+
+ for (i = 1; i < CONFIG_NET_NS_NR; i++) {
+ net = copy_net_ns(CLONE_NEWNET, &init_net);
+ if (IS_ERR(net)) {
+ err = PTR_ERR(net);
+ break;
+ }
+ }
+ }
+#endif
+
if (err)
- panic("Could not setup the initial network namespace");
+ panic("Could not setup the initial network namespace(s)");
return 0;
}
--
1.5.4.4
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