#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
/* <net/net_namespace.h> exists, go ahead and include it. */
#include_next <net/net_namespace.h>
-#endif
+#else
+/* No network namespace support. */
+struct net;
+
+static inline struct net *hold_net(struct net *net)
+{
+ return net;
+}
+
+static inline void release_net(struct net *net)
+{
+}
+
+#define __net_init __init
+#define __net_exit __exit
+#endif /* 2.6.24 */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26)
+#ifdef CONFIG_NET_NS
+static inline
+int net_eq(const struct net *net1, const struct net *net2)
+{
+ return net1 == net2;
+}
+#else
+static inline
+int net_eq(const struct net *net1, const struct net *net2)
+{
+ return 1;
+}
+#endif /* CONFIG_NET_NS */
+#endif /* 2.6.26 */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29)
+#ifdef CONFIG_NET_NS
+
+static inline void write_pnet(struct net **pnet, struct net *net)
+{
+ *pnet = net;
+}
+
+static inline struct net *read_pnet(struct net * const *pnet)
+{
+ return *pnet;
+}
+
+#else
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,32)
-#define INIT_NET_GENL_SOCK init_net.genl_sock
+#define write_pnet(pnet, net) do { (void)(net); } while (0)
+
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,24)
+#define read_pnet(pnet) (&init_net)
#else
-#define INIT_NET_GENL_SOCK genl_sock
+#define read_pnet(pnet) (NULL)
+#endif /* 2.6.24 */
+
+#endif /* CONFIG_NET_NS */
+#endif /* 2.6.29 */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)
+struct rpl_pernet_operations {
+ int (*init)(struct net *net);
+ void (*exit)(struct net *net);
+ int *id;
+ size_t size;
+ struct pernet_operations ops;
+};
+#define pernet_operations rpl_pernet_operations
+
+#define register_pernet_device rpl_register_pernet_gen_device
+#define unregister_pernet_device rpl_unregister_pernet_gen_device
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+extern int rpl_register_pernet_gen_device(struct rpl_pernet_operations *ops);
+extern void rpl_unregister_pernet_gen_device(struct rpl_pernet_operations *ops);
+
+#else /* for 2.6.32* */
+
+int compat_init_net(struct net *net, struct rpl_pernet_operations *pnet);
+void compat_exit_net(struct net *net, struct rpl_pernet_operations *pnet);
+
+#define DEFINE_COMPAT_PNET_REG_FUNC(TYPE) \
+ \
+static struct rpl_pernet_operations *pnet_gen_##TYPE; \
+static int compat_init_net_gen_##TYPE(struct net *net) \
+{ \
+ return compat_init_net(net, pnet_gen_##TYPE); \
+} \
+ \
+static void compat_exit_net_gen_##TYPE(struct net *net) \
+{ \
+ compat_exit_net(net, pnet_gen_##TYPE); \
+} \
+ \
+static int rpl_register_pernet_gen_##TYPE(struct rpl_pernet_operations *rpl_pnet) \
+{ \
+ pnet_gen_##TYPE = rpl_pnet; \
+ rpl_pnet->ops.init = compat_init_net_gen_##TYPE; \
+ rpl_pnet->ops.exit = compat_exit_net_gen_##TYPE; \
+ return register_pernet_gen_##TYPE(pnet_gen_##TYPE->id, &rpl_pnet->ops); \
+} \
+ \
+static void rpl_unregister_pernet_gen_##TYPE(struct rpl_pernet_operations *rpl_pnet) \
+{ \
+ unregister_pernet_gen_##TYPE(*pnet_gen_##TYPE->id, &rpl_pnet->ops); \
+}
#endif
+#endif /* 2.6.33 */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32) || \
+ LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)
+#define DEFINE_COMPAT_PNET_REG_FUNC(TYPE)
+#endif /* 2.6.33 */
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,32)
+#undef for_each_net
+#define for_each_net(net) { net = NULL; }
+
+#endif /* 2.6.32 */
#endif /* net/net_namespace.h wrapper */