#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24)
-/* In version 2.6.24 the return type of skb_headroom() changed from 'int' to
- * 'unsigned int'. We use skb_headroom() as one arm of a min(a,b) invocation
- * in make_writable() in actions.c, so we need the correct type. */
-#define skb_headroom rpl_skb_headroom
-static inline unsigned int rpl_skb_headroom(const struct sk_buff *skb)
-{
- return skb->data - skb->head;
-}
-#endif
-
#ifndef HAVE_SKB_COPY_FROM_LINEAR_DATA_OFFSET
static inline void skb_copy_from_linear_data_offset(const struct sk_buff *skb,
- const int offset, void *to,
- const unsigned int len)
+ const int offset, void *to,
+ const unsigned int len)
{
memcpy(to, skb->data + offset, len);
}
static inline void skb_copy_to_linear_data_offset(struct sk_buff *skb,
- const int offset,
- const void *from,
- const unsigned int len)
+ const int offset,
+ const void *from,
+ const unsigned int len)
{
memcpy(skb->data + offset, from, len);
}
#endif /* !HAVE_SKB_COPY_FROM_LINEAR_DATA_OFFSET */
+#ifndef HAVE_SKB_RESET_TAIL_POINTER
+static inline void skb_reset_tail_pointer(struct sk_buff *skb)
+{
+ skb->tail = skb->data;
+}
+#endif
/*
* The networking layer reserves some headroom in skb data (via
* dev_alloc_skb). This is used to avoid having to reallocate skb data when
#ifndef HAVE_SKB_COW_HEAD
static inline int __skb_cow(struct sk_buff *skb, unsigned int headroom,
- int cloned)
+ int cloned)
{
int delta = 0;
}
#endif /* !HAVE_SKB_COW_HEAD */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,23)
-static inline int skb_clone_writable(struct sk_buff *skb, int len)
-{
- return false;
-}
-#endif
-
#ifndef HAVE_SKB_DST_ACCESSOR_FUNCS
static inline struct dst_entry *skb_dst(const struct sk_buff *skb)
{
}
#endif
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,17)
-/* Emulate Linux 2.6.17 and later behavior, in which kfree_skb silently ignores
- * null pointer arguments. */
-#define kfree_skb(skb) kfree_skb_maybe_null(skb)
-static inline void kfree_skb_maybe_null(struct sk_buff *skb)
-{
- if (likely(skb != NULL))
- (kfree_skb)(skb);
-}
-#endif
-
-
#ifndef CHECKSUM_PARTIAL
#define CHECKSUM_PARTIAL CHECKSUM_HW
#endif
static inline int skb_transport_offset(const struct sk_buff *skb)
{
- return skb_transport_header(skb) - skb->data;
+ return skb_transport_header(skb) - skb->data;
}
static inline int skb_network_offset(const struct sk_buff *skb)
}
#endif /* !HAVE_SKBUFF_HEADER_HELPERS */
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,18)
-#warning "TSO/UFO not supported on kernels earlier than 2.6.18"
-
-static inline int skb_is_gso(const struct sk_buff *skb)
-{
- return 0;
-}
-
-static inline struct sk_buff *skb_gso_segment(struct sk_buff *skb,
- int features)
-{
- return NULL;
-}
-#endif /* before 2.6.18 */
-
#ifndef HAVE_SKB_WARN_LRO
#ifndef NETIF_F_LRO
static inline bool skb_warn_if_lro(const struct sk_buff *skb)
#define consume_skb kfree_skb
#endif
+#ifndef HAVE_SKB_FRAG_PAGE
+static inline struct page *skb_frag_page(const skb_frag_t *frag)
+{
+ return frag->page;
+}
+#endif
+
+#ifndef HAVE_SKB_RESET_MAC_LEN
+static inline void skb_reset_mac_len(struct sk_buff *skb)
+{
+ skb->mac_len = skb->network_header - skb->mac_header;
+}
+#endif
+
+#ifndef HAVE_SKB_UNCLONE
+static inline int skb_unclone(struct sk_buff *skb, gfp_t pri)
+{
+ might_sleep_if(pri & __GFP_WAIT);
+
+ if (skb_cloned(skb))
+ return pskb_expand_head(skb, 0, 0, pri);
+
+ return 0;
+}
+#endif
+
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,37)
+extern u32 __skb_get_rxhash(struct sk_buff *skb);
+static inline __u32 skb_get_rxhash(struct sk_buff *skb)
+{
+#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,34)
+ if (!skb->rxhash)
+#endif
+ return __skb_get_rxhash(skb);
+}
+#endif
+
#endif