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[RFC,01/29] net: Introduce net_ctx and macro for context comparison

Message ID 1423100070-31848-2-git-send-email-dsahern@gmail.com
State RFC, archived
Delegated to: David Miller
Headers show

Commit Message

David Ahern Feb. 5, 2015, 1:34 a.m. UTC 
For now the network context is just the namespace. A later patch adds
a vrf context.

Signed-off-by: David Ahern <dsahern@gmail.com>
---
 include/net/net_namespace.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
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Patch

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 36faf4990c4b..b932f2a83865 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -134,11 +134,19 @@  struct net {
 	atomic_t		fnhe_genid;
 };
 
+struct net_ctx {
+#ifdef CONFIG_NET_NS
+	struct net *net;
+#endif
+};
+
 #include <linux/seq_file_net.h>
 
 /* Init's network namespace */
 extern struct net init_net;
 
+#define INIT_NET_CTX  { .net = &init_net }
+
 #ifdef CONFIG_NET_NS
 struct net *copy_net_ns(unsigned long flags, struct user_namespace *user_ns,
 			struct net *old_net);
@@ -202,6 +210,13 @@  int net_eq(const struct net *net1, const struct net *net2)
 	return net1 == net2;
 }
 
+static inline
+int net_ctx_eq(struct net_ctx *ctx1, struct net_ctx *ctx2)
+{
+	return net_eq(ctx1->net, ctx2->net);
+}
+
+
 void net_drop_ns(void *);
 
 #else
@@ -226,6 +241,12 @@  int net_eq(const struct net *net1, const struct net *net2)
 	return 1;
 }
 
+static inline
+int net_ctx_eq(struct net_ctx *ctx1, struct net_ctx *ctx2)
+{
+	return 1;
+}
+
 #define net_drop_ns NULL
 #endif