[NET]: Add a network namespace parameter to tasks

This is the network namespace from which all which all sockets
and anything else under user control ultimately get their network
namespace parameters.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index f8abfa349ef9..e2c1ffcff62c 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -9,6 +9,7 @@
 #include <linux/ipc.h>
 #include <linux/pid_namespace.h>
 #include <linux/user_namespace.h>
+#include <net/net_namespace.h>
 
 #define INIT_FDTABLE \
 {                                                       \
@@ -78,6 +79,7 @@ extern struct nsproxy init_nsproxy;
         .nslock         = __SPIN_LOCK_UNLOCKED(nsproxy.nslock),         \
         .uts_ns         = &init_uts_ns,                                 \
         .mnt_ns         = NULL,                                         \
+        .net_ns         = &init_net,                                    \
         INIT_IPC_NS(ipc_ns)                                             \
         .user_ns        = &init_user_ns,                                \
 }
diff --git a/include/linux/nsproxy.h b/include/linux/nsproxy.h
index ce06188b7a56..bec4485e3d76 100644
--- a/include/linux/nsproxy.h
+++ b/include/linux/nsproxy.h
@@ -29,6 +29,7 @@ struct nsproxy {
         struct mnt_namespace *mnt_ns;
         struct pid_namespace *pid_ns;
         struct user_namespace *user_ns;
+        struct net           *net_ns;
 };
 extern struct nsproxy init_nsproxy;