#include <net/flow_dissector.h>
#include <linux/splice.h>
#include <linux/in6.h>
+#include <net/flow.h>
/* A. Checksumming of received packets by device.
*
BRNF_PROTO_8021Q,
BRNF_PROTO_PPPOE
} orig_proto:8;
- bool pkt_otherhost;
+ u8 pkt_otherhost:1;
+ u8 in_prerouting:1;
+ u8 bridged_dnat:1;
__u16 frag_max_size;
- unsigned int mask;
struct net_device *physindev;
union {
- struct net_device *physoutdev;
- char neigh_header[8];
- };
- union {
+ /* prerouting: detect dnat in orig/reply direction */
__be32 ipv4_daddr;
struct in6_addr ipv6_daddr;
+
+ /* after prerouting + nat detected: store original source
+ * mac since neigh resolution overwrites it, only used while
+ * skb is out in neigh layer.
+ */
+ char neigh_header[8];
+
+ /* always valid & non-NULL from FORWARD on, for physdev match */
+ struct net_device *physoutdev;
};
};
#endif
* @no_fcs: Request NIC to treat last 4 bytes as Ethernet FCS
* @napi_id: id of the NAPI struct this skb came from
* @secmark: security marking
+ * @offload_fwd_mark: fwding offload mark
* @mark: Generic packet mark
* @vlan_proto: vlan encapsulation protocol
* @vlan_tci: vlan tag control information
unsigned int sender_cpu;
};
#endif
+ union {
#ifdef CONFIG_NETWORK_SECMARK
- __u32 secmark;
+ __u32 secmark;
#endif
+#ifdef CONFIG_NET_SWITCHDEV
+ __u32 offload_fwd_mark;
+#endif
+ };
+
union {
__u32 mark;
__u32 reserved_tailroom;
skb->hash = hash;
}
+void __skb_get_hash(struct sk_buff *skb);
+u32 skb_get_poff(const struct sk_buff *skb);
+u32 __skb_get_poff(const struct sk_buff *skb, void *data,
+ const struct flow_keys *keys, int hlen);
+__be32 __skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto,
+ void *data, int hlen_proto);
+
+static inline __be32 skb_flow_get_ports(const struct sk_buff *skb,
+ int thoff, u8 ip_proto)
+{
+ return __skb_flow_get_ports(skb, thoff, ip_proto, NULL, 0);
+}
+
+void skb_flow_dissector_init(struct flow_dissector *flow_dissector,
+ const struct flow_dissector_key *key,
+ unsigned int key_count);
+
+bool __skb_flow_dissect(const struct sk_buff *skb,
+ struct flow_dissector *flow_dissector,
+ void *target_container,
+ void *data, __be16 proto, int nhoff, int hlen);
+
+static inline bool skb_flow_dissect(const struct sk_buff *skb,
+ struct flow_dissector *flow_dissector,
+ void *target_container)
+{
+ return __skb_flow_dissect(skb, flow_dissector, target_container,
+ NULL, 0, 0, 0);
+}
+
+static inline bool skb_flow_dissect_flow_keys(const struct sk_buff *skb,
+ struct flow_keys *flow)
+{
+ memset(flow, 0, sizeof(*flow));
+ return __skb_flow_dissect(skb, &flow_keys_dissector, flow,
+ NULL, 0, 0, 0);
+}
+
+static inline bool skb_flow_dissect_flow_keys_buf(struct flow_keys *flow,
+ void *data, __be16 proto,
+ int nhoff, int hlen)
+{
+ memset(flow, 0, sizeof(*flow));
+ return __skb_flow_dissect(NULL, &flow_keys_buf_dissector, flow,
+ data, proto, nhoff, hlen);
+}
+
static inline __u32 skb_get_hash(struct sk_buff *skb)
{
if (!skb->l4_hash && !skb->sw_hash)
return skb->hash;
}
+__u32 __skb_get_hash_flowi6(struct sk_buff *skb, struct flowi6 *fl6);
+
+static inline __u32 skb_get_hash_flowi6(struct sk_buff *skb, struct flowi6 *fl6)
+{
+ if (!skb->l4_hash && !skb->sw_hash)
+ __skb_get_hash_flowi6(skb, fl6);
+
+ return skb->hash;
+}
+
+__u32 __skb_get_hash_flowi4(struct sk_buff *skb, struct flowi4 *fl);
+
+static inline __u32 skb_get_hash_flowi4(struct sk_buff *skb, struct flowi4 *fl4)
+{
+ if (!skb->l4_hash && !skb->sw_hash)
+ __skb_get_hash_flowi4(skb, fl4);
+
+ return skb->hash;
+}
+
__u32 skb_get_hash_perturb(const struct sk_buff *skb, u32 perturb);
static inline __u32 skb_get_hash_raw(const struct sk_buff *skb)
skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
/*
- * Propagate page->pfmemalloc to the skb if we can. The problem is
- * that not all callers have unique ownership of the page. If
- * pfmemalloc is set, we check the mapping as a mapping implies
- * page->index is set (index and pfmemalloc share space).
- * If it's a valid mapping, we cannot use page->pfmemalloc but we
- * do not lose pfmemalloc information as the pages would not be
- * allocated using __GFP_MEMALLOC.
+ * Propagate page pfmemalloc to the skb if we can. The problem is
+ * that not all callers have unique ownership of the page but rely
+ * on page_is_pfmemalloc doing the right thing(tm).
*/
frag->page.p = page;
frag->page_offset = off;
skb_frag_size_set(frag, size);
page = compound_head(page);
- if (page->pfmemalloc && !page->mapping)
+ if (page_is_pfmemalloc(page))
skb->pfmemalloc = true;
}
static inline void skb_propagate_pfmemalloc(struct page *page,
struct sk_buff *skb)
{
- if (page && page->pfmemalloc)
+ if (page_is_pfmemalloc(page))
skb->pfmemalloc = true;
}
skb_shinfo(skb)->frag_list = NULL;
}
-static inline void skb_frag_add_head(struct sk_buff *skb, struct sk_buff *frag)
-{
- frag->next = skb_shinfo(skb)->frag_list;
- skb_shinfo(skb)->frag_list = frag;
-}
-
#define skb_walk_frags(skb, iter) \
for (iter = skb_shinfo(skb)->frag_list; iter; iter = iter->next)
*
* PHY drivers may accept clones of transmitted packets for
* timestamping via their phy_driver.txtstamp method. These drivers
- * must call this function to return the skb back to the stack, with
- * or without a timestamp.
+ * must call this function to return the skb back to the stack with a
+ * timestamp.
*
* @skb: clone of the the original outgoing packet
- * @hwtstamps: hardware time stamps, may be NULL if not available
+ * @hwtstamps: hardware time stamps
*
*/
void skb_complete_tx_timestamp(struct sk_buff *skb,
skb_network_header(skb);
return hdr_len + skb_gso_transport_seglen(skb);
}
+
#endif /* __KERNEL__ */
#endif /* _LINUX_SKBUFF_H */
projects / cascardo / linux.git / blobdiff