*/
#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0)
-
#include <linux/kconfig.h>
-#if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
-
#include <linux/module.h>
#include <linux/if.h>
#include <linux/if_tunnel.h>
#include "gso.h"
+#if IS_ENABLED(CONFIG_NET_IPGRE_DEMUX)
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0)
+
#ifndef HAVE_GRE_CISCO_REGISTER
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
skb->len - gre_offset, 0));
}
-struct sk_buff *rpl_gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
-{
- int type = gre_csum ? SKB_GSO_GRE_CSUM : SKB_GSO_GRE;
- gso_fix_segment_t fix_segment;
-
- if (gre_csum)
- fix_segment = gre_csum_fix;
- else
- fix_segment = gre_nop_fix;
-
- return ovs_iptunnel_handle_offloads(skb, gre_csum, type, fix_segment);
-}
-EXPORT_SYMBOL_GPL(rpl_gre_handle_offloads);
-
static bool is_gre_gso(struct sk_buff *skb)
{
return skb_is_gso(skb);
}
EXPORT_SYMBOL_GPL(rpl_gre_build_header);
-#endif /* CONFIG_NET_IPGRE_DEMUX */
+struct sk_buff *rpl_gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
+{
+ int type = gre_csum ? SKB_GSO_GRE_CSUM : SKB_GSO_GRE;
+ gso_fix_segment_t fix_segment;
+
+ if (gre_csum)
+ fix_segment = gre_csum_fix;
+ else
+ fix_segment = gre_nop_fix;
-#endif /* 3.12 */
+ return ovs_iptunnel_handle_offloads(skb, gre_csum, type, fix_segment);
+}
+#else
+struct sk_buff *rpl_gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
+{
+ if (skb_is_gso(skb) && skb_is_encapsulated(skb)) {
+ kfree_skb(skb);
+ return ERR_PTR(-ENOSYS);
+ }
+ skb_clear_ovs_gso_cb(skb);
+#undef gre_handle_offloads
+ return gre_handle_offloads(skb, gre_csum);
+}
+#endif
+EXPORT_SYMBOL_GPL(rpl_gre_handle_offloads);
+
+#endif /* CONFIG_NET_IPGRE_DEMUX */