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authorPavel Emelyanov <xemul@openvz.org>2007-12-08 00:09:24 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:56:56 -0800
commit024626e36d75fc8c6e32d50d4c68bfc3b8df5fdf (patch)
treeada6c8c215a5c4fa57e9e34f3b139609b95b2c5f /include
parentcbbb90e68cd073b8d63b491166066e347902b7e9 (diff)
[NET] sysctl: make the sys.net.core sysctls per-namespace
Making them per-namespace is required for the following two reasons: First, some ctl values have a per-namespace meaning. Second, making them writable from the sub-namespace is an isolation hole. So I introduce the pernet operations to create these tables. For init_net I use the existing statically declared tables, for sub-namespace they are duplicated and the write bits are removed from the mode. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/net_namespace.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index f97b2a4469a..d5936115d97 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -37,6 +37,9 @@ struct net {
struct sock *rtnl; /* rtnetlink socket */
+ /* core sysctls */
+ struct ctl_table_header *sysctl_core_hdr;
+
/* List of all packet sockets. */
rwlock_t packet_sklist_lock;
struct hlist_head packet_sklist;