1 files changed, 102 insertions, 37 deletions

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2741c0c55e83..8c5d6001a923 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -137,6 +137,8 @@ struct skb_shared_info {
         unsigned int    nr_frags;
         unsigned short  tso_size;
         unsigned short  tso_segs;
+        unsigned short  ufo_size;
+        unsigned int    ip6_frag_id;
         struct sk_buff  *frag_list;
         skb_frag_t      frags[MAX_SKB_FRAGS];
 };
@@ -155,8 +157,6 @@ struct skb_shared_info {
 #define SKB_DATAREF_SHIFT 16
 #define SKB_DATAREF_MASK ((1 << SKB_DATAREF_SHIFT) - 1)
 
-extern struct timeval skb_tv_base;
-
 struct skb_timeval {
         u32     off_sec;
         u32     off_usec;
@@ -173,9 +173,8 @@ enum {
  *      struct sk_buff - socket buffer
  *      @next: Next buffer in list
  *      @prev: Previous buffer in list
- *      @list: List we are on
  *      @sk: Socket we are owned by
- *      @tstamp: Time we arrived stored as offset to skb_tv_base
+ *      @tstamp: Time we arrived
  *      @dev: Device we arrived on/are leaving by
  *      @input_dev: Device we arrived on
  *      @h: Transport layer header
@@ -192,6 +191,7 @@ enum {
  *      @cloned: Head may be cloned (check refcnt to be sure)
  *      @nohdr: Payload reference only, must not modify header
  *      @pkt_type: Packet class
+ *      @fclone: skbuff clone status
  *      @ip_summed: Driver fed us an IP checksum
  *      @priority: Packet queueing priority
  *      @users: User count - see {datagram,tcp}.c
@@ -204,7 +204,9 @@ enum {
  *      @destructor: Destruct function
  *      @nfmark: Can be used for communication between hooks
  *      @nfct: Associated connection, if any
+ *      @ipvs_property: skbuff is owned by ipvs
  *      @nfctinfo: Relationship of this skb to the connection
+ *      @nfct_reasm: netfilter conntrack re-assembly pointer
  *      @nf_bridge: Saved data about a bridged frame - see br_netfilter.c
  *      @tc_index: Traffic control index
  *      @tc_verd: traffic control verdict
@@ -263,15 +265,16 @@ struct sk_buff {
                                 nohdr:1,
                                 nfctinfo:3;
         __u8                    pkt_type:3,
-                                fclone:2;
+                                fclone:2,
+                                ipvs_property:1;
         __be16                  protocol;
 
         void                    (*destructor)(struct sk_buff *skb);
 #ifdef CONFIG_NETFILTER
         __u32                   nfmark;
         struct nf_conntrack     *nfct;
-#if defined(CONFIG_IP_VS) || defined(CONFIG_IP_VS_MODULE)
-        __u8                    ipvs_property:1;
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+        struct sk_buff          *nfct_reasm;
 #endif
 #ifdef CONFIG_BRIDGE_NETFILTER
         struct nf_bridge_info   *nf_bridge;
@@ -304,37 +307,37 @@ struct sk_buff {
 
 extern void            __kfree_skb(struct sk_buff *skb);
 extern struct sk_buff *__alloc_skb(unsigned int size,
-                                   unsigned int __nocast priority, int fclone);
+                                   gfp_t priority, int fclone);
 static inline struct sk_buff *alloc_skb(unsigned int size,
-                                        unsigned int __nocast priority)
+                                        gfp_t priority)
 {
         return __alloc_skb(size, priority, 0);
 }
 
 static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
-                                               unsigned int __nocast priority)
+                                               gfp_t priority)
 {
         return __alloc_skb(size, priority, 1);
 }
 
 extern struct sk_buff *alloc_skb_from_cache(kmem_cache_t *cp,
                                             unsigned int size,
-                                            unsigned int __nocast priority);
+                                            gfp_t priority);
 extern void            kfree_skbmem(struct sk_buff *skb);
 extern struct sk_buff *skb_clone(struct sk_buff *skb,
-                                 unsigned int __nocast priority);
+                                 gfp_t priority);
 extern struct sk_buff *skb_copy(const struct sk_buff *skb,
-                                unsigned int __nocast priority);
+                                gfp_t priority);
 extern struct sk_buff *pskb_copy(struct sk_buff *skb,
-                                 unsigned int __nocast gfp_mask);
+                                 gfp_t gfp_mask);
 extern int             pskb_expand_head(struct sk_buff *skb,
                                         int nhead, int ntail,
-                                        unsigned int __nocast gfp_mask);
+                                        gfp_t gfp_mask);
 extern struct sk_buff *skb_realloc_headroom(struct sk_buff *skb,
                                             unsigned int headroom);
 extern struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
                                        int newheadroom, int newtailroom,
-                                       unsigned int __nocast priority);
+                                       gfp_t priority);
 extern struct sk_buff *         skb_pad(struct sk_buff *skb, int pad);
 #define dev_kfree_skb(a)        kfree_skb(a)
 extern void           skb_over_panic(struct sk_buff *skb, int len,
@@ -342,6 +345,11 @@ extern void	      skb_over_panic(struct sk_buff *skb, int len,
 extern void           skb_under_panic(struct sk_buff *skb, int len,
                                       void *here);
 
+extern int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
+                        int getfrag(void *from, char *to, int offset,
+                        int len,int odd, struct sk_buff *skb),
+                        void *from, int length);
+
 struct skb_seq_state
 {
         __u32           lower_offset;
@@ -486,7 +494,7 @@ static inline int skb_shared(const struct sk_buff *skb)
  *      NULL is returned on a memory allocation failure.
  */
 static inline struct sk_buff *skb_share_check(struct sk_buff *skb,
-                                              unsigned int __nocast pri)
+                                              gfp_t pri)
 {
         might_sleep_if(pri & __GFP_WAIT);
         if (skb_shared(skb)) {
@@ -518,7 +526,7 @@ static inline struct sk_buff *skb_share_check(struct sk_buff *skb,
  *      %NULL is returned on a memory allocation failure.
  */
 static inline struct sk_buff *skb_unshare(struct sk_buff *skb,
-                                          unsigned int __nocast pri)
+                                          gfp_t pri)
 {
         might_sleep_if(pri & __GFP_WAIT);
         if (skb_cloned(skb)) {
@@ -597,23 +605,23 @@ static inline void skb_queue_head_init(struct sk_buff_head *list)
  */
 
 /**
- *      __skb_queue_head - queue a buffer at the list head
+ *      __skb_queue_after - queue a buffer at the list head
  *      @list: list to use
+ *      @prev: place after this buffer
  *      @newsk: buffer to queue
  *
- *      Queue a buffer at the start of a list. This function takes no locks
+ *      Queue a buffer int the middle of a list. This function takes no locks
  *      and you must therefore hold required locks before calling it.
  *
  *      A buffer cannot be placed on two lists at the same time.
  */
-extern void skb_queue_head(struct sk_buff_head *list, struct sk_buff *newsk);
-static inline void __skb_queue_head(struct sk_buff_head *list,
-                                    struct sk_buff *newsk)
+static inline void __skb_queue_after(struct sk_buff_head *list,
+                                     struct sk_buff *prev,
+                                     struct sk_buff *newsk)
 {
-        struct sk_buff *prev, *next;
-
+        struct sk_buff *next;
         list->qlen++;
-        prev = (struct sk_buff *)list;
+
         next = prev->next;
         newsk->next = next;
         newsk->prev = prev;
@@ -621,6 +629,23 @@ static inline void __skb_queue_head(struct sk_buff_head *list,
 }
 
 /**
+ *      __skb_queue_head - queue a buffer at the list head
+ *      @list: list to use
+ *      @newsk: buffer to queue
+ *
+ *      Queue a buffer at the start of a list. This function takes no locks
+ *      and you must therefore hold required locks before calling it.
+ *
+ *      A buffer cannot be placed on two lists at the same time.
+ */
+extern void skb_queue_head(struct sk_buff_head *list, struct sk_buff *newsk);
+static inline void __skb_queue_head(struct sk_buff_head *list,
+                                    struct sk_buff *newsk)
+{
+        __skb_queue_after(list, (struct sk_buff *)list, newsk);
+}
+
+/**
  *      __skb_queue_tail - queue a buffer at the list tail
  *      @list: list to use
  *      @newsk: buffer to queue
@@ -1019,7 +1044,7 @@ static inline void __skb_queue_purge(struct sk_buff_head *list)
  *      %NULL is returned in there is no free memory.
  */
 static inline struct sk_buff *__dev_alloc_skb(unsigned int length,
-                                              unsigned int __nocast gfp_mask)
+                                              gfp_t gfp_mask)
 {
         struct sk_buff *skb = alloc_skb(length + 16, gfp_mask);
         if (likely(skb))
@@ -1132,8 +1157,8 @@ static inline int skb_can_coalesce(struct sk_buff *skb, int i,
  *      If there is no free memory -ENOMEM is returned, otherwise zero
  *      is returned and the old skb data released.
  */
-extern int __skb_linearize(struct sk_buff *skb, unsigned int __nocast gfp);
-static inline int skb_linearize(struct sk_buff *skb, unsigned int __nocast gfp)
+extern int __skb_linearize(struct sk_buff *skb, gfp_t gfp);
+static inline int skb_linearize(struct sk_buff *skb, gfp_t gfp)
 {
         return __skb_linearize(skb, gfp);
 }
@@ -1197,6 +1222,11 @@ static inline void kunmap_skb_frag(void *vaddr)
                      prefetch(skb->next), (skb != (struct sk_buff *)(queue));   \
                      skb = skb->next)
 
+#define skb_queue_reverse_walk(queue, skb) \
+                for (skb = (queue)->prev;                                       \
+                     prefetch(skb->prev), (skb != (struct sk_buff *)(queue));   \
+                     skb = skb->prev)
+
 
 extern struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags,
                                          int noblock, int *err);
@@ -1205,8 +1235,7 @@ extern unsigned int    datagram_poll(struct file *file, struct socket *sock,
 extern int             skb_copy_datagram_iovec(const struct sk_buff *from,
                                                int offset, struct iovec *to,
                                                int size);
-extern int             skb_copy_and_csum_datagram_iovec(const
-                                                        struct sk_buff *skb,
+extern int             skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
                                                         int hlen,
                                                         struct iovec *iov);
 extern void            skb_free_datagram(struct sock *sk, struct sk_buff *skb);
@@ -1255,10 +1284,6 @@ static inline void skb_get_timestamp(const struct sk_buff *skb, struct timeval *
 {
         stamp->tv_sec  = skb->tstamp.off_sec;
         stamp->tv_usec = skb->tstamp.off_usec;
-        if (skb->tstamp.off_sec) {
-                stamp->tv_sec  += skb_tv_base.tv_sec;
-                stamp->tv_usec += skb_tv_base.tv_usec;
-        }
 }
 
 /**
@@ -1272,12 +1297,36 @@ static inline void skb_get_timestamp(const struct sk_buff *skb, struct timeval *
  */
 static inline void skb_set_timestamp(struct sk_buff *skb, const struct timeval *stamp)
 {
-        skb->tstamp.off_sec  = stamp->tv_sec - skb_tv_base.tv_sec;
-        skb->tstamp.off_usec = stamp->tv_usec - skb_tv_base.tv_usec;
+        skb->tstamp.off_sec  = stamp->tv_sec;
+        skb->tstamp.off_usec = stamp->tv_usec;
 }
 
 extern void __net_timestamp(struct sk_buff *skb);
 
+extern unsigned int __skb_checksum_complete(struct sk_buff *skb);
+
+/**
+ *      skb_checksum_complete - Calculate checksum of an entire packet
+ *      @skb: packet to process
+ *
+ *      This function calculates the checksum over the entire packet plus
+ *      the value of skb->csum.  The latter can be used to supply the
+ *      checksum of a pseudo header as used by TCP/UDP.  It returns the
+ *      checksum.
+ *
+ *      For protocols that contain complete checksums such as ICMP/TCP/UDP,
+ *      this function can be used to verify that checksum on received
+ *      packets.  In that case the function should return zero if the
+ *      checksum is correct.  In particular, this function will return zero
+ *      if skb->ip_summed is CHECKSUM_UNNECESSARY which indicates that the
+ *      hardware has already verified the correctness of the checksum.
+ */
+static inline unsigned int skb_checksum_complete(struct sk_buff *skb)
+{
+        return skb->ip_summed != CHECKSUM_UNNECESSARY &&
+                __skb_checksum_complete(skb);
+}
+
 #ifdef CONFIG_NETFILTER
 static inline void nf_conntrack_put(struct nf_conntrack *nfct)
 {
@@ -1289,10 +1338,26 @@ static inline void nf_conntrack_get(struct nf_conntrack *nfct)
         if (nfct)
                 atomic_inc(&nfct->use);
 }
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+static inline void nf_conntrack_get_reasm(struct sk_buff *skb)
+{
+        if (skb)
+                atomic_inc(&skb->users);
+}
+static inline void nf_conntrack_put_reasm(struct sk_buff *skb)
+{
+        if (skb)
+                kfree_skb(skb);
+}
+#endif
 static inline void nf_reset(struct sk_buff *skb)
 {
         nf_conntrack_put(skb->nfct);
         skb->nfct = NULL;
+#if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
+        nf_conntrack_put_reasm(skb->nfct_reasm);
+        skb->nfct_reasm = NULL;
+#endif
 }
 
 #ifdef CONFIG_BRIDGE_NETFILTER