X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=include%2Fnet%2Fsock.h;h=aab07e510c480f56f2495a3ba390ea85152ced0d;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=d6926d65b60903b7ad56e457a7e3ab0af120e74e;hpb=f7f1b0f1e2fbadeab12d24236000e778aa9b1ead;p=linux-2.6.git

diff --git a/include/net/sock.h b/include/net/sock.h
index d6926d65b..aab07e510 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -62,7 +62,7 @@
  */
 
 /* Define this to get the SOCK_DBG debugging facility. */
-#define SOCK_DEBUGGING
+//#define SOCK_DEBUGGING
 #ifdef SOCK_DEBUGGING
 #define SOCK_DEBUG(sk, msg...) do { if ((sk) && sock_flag((sk), SOCK_DBG)) \
 					printk(KERN_DEBUG msg); } while (0)
@@ -88,6 +88,7 @@ do {	spin_lock_init(&((__sk)->sk_lock.slock)); \
 } while(0)
 
 struct sock;
+struct proto;
 
 /**
  *	struct sock_common - minimal network layer representation of sockets
@@ -98,10 +99,12 @@ struct sock;
  *	@skc_node: main hash linkage for various protocol lookup tables
  *	@skc_bind_node: bind hash linkage for various protocol lookup tables
  *	@skc_refcnt: reference count
+ *	@skc_hash: hash value used with various protocol lookup tables
+ *	@skc_prot: protocol handlers inside a network family
  *
  *	This is the minimal network layer representation of sockets, the header
- *	for struct sock and struct tcp_tw_bucket.
-  */
+ *	for struct sock and struct inet_timewait_sock.
+ */
 struct sock_common {
 	unsigned short		skc_family;
 	volatile unsigned char	skc_state;
@@ -110,15 +113,17 @@ struct sock_common {
 	struct hlist_node	skc_node;
 	struct hlist_node	skc_bind_node;
 	atomic_t		skc_refcnt;
+	unsigned int		skc_hash;
+	struct proto		*skc_prot;
 	xid_t			skc_xid;
-	struct vx_info		*skc_vx_info;
+	struct vx_info	*skc_vx_info;
 	nid_t			skc_nid;
-	struct nx_info		*skc_nx_info;
+	struct nx_info	*skc_nx_info;
 };
 
 /**
   *	struct sock - network layer representation of sockets
-  *	@__sk_common: shared layout with tcp_tw_bucket
+  *	@__sk_common: shared layout with inet_timewait_sock
   *	@sk_shutdown: mask of %SEND_SHUTDOWN and/or %RCV_SHUTDOWN
   *	@sk_userlocks: %SO_SNDBUF and %SO_RCVBUF settings
   *	@sk_lock:	synchronizer
@@ -140,11 +145,9 @@ struct sock_common {
   *	@sk_no_check: %SO_NO_CHECK setting, wether or not checkup packets
   *	@sk_route_caps: route capabilities (e.g. %NETIF_F_TSO)
   *	@sk_lingertime: %SO_LINGER l_linger setting
-  *	@sk_hashent: hash entry in several tables (e.g. tcp_ehash)
   *	@sk_backlog: always used with the per-socket spinlock held
   *	@sk_callback_lock: used with the callbacks in the end of this struct
   *	@sk_error_queue: rarely used
-  *	@sk_prot: protocol handlers inside a network family
   *	@sk_prot_creator: sk_prot of original sock creator (see ipv6_setsockopt, IPV6_ADDRFORM for instance)
   *	@sk_err: last error
   *	@sk_err_soft: errors that don't cause failure but are the cause of a persistent failure not just 'timed out'
@@ -162,7 +165,7 @@ struct sock_common {
   *	@sk_timer: sock cleanup timer
   *	@sk_stamp: time stamp of last packet received
   *	@sk_socket: Identd and reporting IO signals
-  *	@sk_user_data: RPC layer private data
+  *	@sk_user_data: RPC and Tux layer private data
   *	@sk_sndmsg_page: cached page for sendmsg
   *	@sk_sndmsg_off: cached offset for sendmsg
   *	@sk_send_head: front of stuff to transmit
@@ -172,12 +175,13 @@ struct sock_common {
   *	@sk_data_ready: callback to indicate there is data to be processed
   *	@sk_write_space: callback to indicate there is bf sending space available
   *	@sk_error_report: callback to indicate errors (e.g. %MSG_ERRQUEUE)
+  *	@sk_create_child - callback to get new socket events
   *	@sk_backlog_rcv: callback to process the backlog
   *	@sk_destruct: called at sock freeing time, i.e. when all refcnt == 0
  */
 struct sock {
 	/*
-	 * Now struct tcp_tw_bucket also uses sock_common, so please just
+	 * Now struct inet_timewait_sock also uses sock_common, so please just
 	 * don't add nothing before this first member (__sk_common) --acme
 	 */
 	struct sock_common	__sk_common;
@@ -188,6 +192,8 @@ struct sock {
 #define sk_node			__sk_common.skc_node
 #define sk_bind_node		__sk_common.skc_bind_node
 #define sk_refcnt		__sk_common.skc_refcnt
+#define sk_hash			__sk_common.skc_hash
+#define sk_prot			__sk_common.skc_prot
 #define sk_xid			__sk_common.skc_xid
 #define sk_vx_info		__sk_common.skc_vx_info
 #define sk_nid			__sk_common.skc_nid
@@ -210,10 +216,10 @@ struct sock {
 	struct sk_buff_head	sk_write_queue;
 	int			sk_wmem_queued;
 	int			sk_forward_alloc;
-	unsigned int		sk_allocation;
+	gfp_t			sk_allocation;
 	int			sk_sndbuf;
 	int			sk_route_caps;
-	int			sk_hashent;
+	int			sk_rcvlowat;
 	unsigned long 		sk_flags;
 	unsigned long	        sk_lingertime;
 	/*
@@ -226,7 +232,6 @@ struct sock {
 		struct sk_buff *tail;
 	} sk_backlog;
 	struct sk_buff_head	sk_error_queue;
-	struct proto		*sk_prot;
 	struct proto		*sk_prot_creator;
 	rwlock_t		sk_callback_lock;
 	int			sk_err,
@@ -235,7 +240,6 @@ struct sock {
 	unsigned short		sk_max_ack_backlog;
 	__u32			sk_priority;
 	struct ucred		sk_peercred;
-	int			sk_rcvlowat;
 	long			sk_rcvtimeo;
 	long			sk_sndtimeo;
 	struct sk_filter      	*sk_filter;
@@ -255,36 +259,37 @@ struct sock {
 	void			(*sk_error_report)(struct sock *sk);
   	int			(*sk_backlog_rcv)(struct sock *sk,
 						  struct sk_buff *skb);  
+	void			(*sk_create_child)(struct sock *sk, struct sock *newsk);
 	void                    (*sk_destruct)(struct sock *sk);
 };
 
 /*
  * Hashed lists helper routines
  */
-static inline struct sock *__sk_head(struct hlist_head *head)
+static inline struct sock *__sk_head(const struct hlist_head *head)
 {
 	return hlist_entry(head->first, struct sock, sk_node);
 }
 
-static inline struct sock *sk_head(struct hlist_head *head)
+static inline struct sock *sk_head(const struct hlist_head *head)
 {
 	return hlist_empty(head) ? NULL : __sk_head(head);
 }
 
-static inline struct sock *sk_next(struct sock *sk)
+static inline struct sock *sk_next(const struct sock *sk)
 {
 	return sk->sk_node.next ?
 		hlist_entry(sk->sk_node.next, struct sock, sk_node) : NULL;
 }
 
-static inline int sk_unhashed(struct sock *sk)
+static inline int sk_unhashed(const struct sock *sk)
 {
 	return hlist_unhashed(&sk->sk_node);
 }
 
-static inline int sk_hashed(struct sock *sk)
+static inline int sk_hashed(const struct sock *sk)
 {
-	return sk->sk_node.pprev != NULL;
+	return !sk_unhashed(sk);
 }
 
 static __inline__ void sk_node_init(struct hlist_node *node)
@@ -392,6 +397,11 @@ enum sock_flags {
 	SOCK_QUEUE_SHRUNK, /* write queue has been shrunk recently */
 };
 
+static inline void sock_copy_flags(struct sock *nsk, struct sock *osk)
+{
+	nsk->sk_flags = osk->sk_flags;
+}
+
 static inline void sock_set_flag(struct sock *sk, enum sock_flags flag)
 {
 	__set_bit(flag, &sk->sk_flags);
@@ -454,6 +464,7 @@ static inline void sk_stream_set_owner_r(struct sk_buff *skb, struct sock *sk)
 
 static inline void sk_stream_free_skb(struct sock *sk, struct sk_buff *skb)
 {
+	skb_truesize_check(skb);
 	sock_set_flag(sk, SOCK_QUEUE_SHRUNK);
 	sk->sk_wmem_queued   -= skb->truesize;
 	sk->sk_forward_alloc += skb->truesize;
@@ -461,16 +472,16 @@ static inline void sk_stream_free_skb(struct sock *sk, struct sk_buff *skb)
 }
 
 /* The per-socket spinlock must be held here. */
-#define sk_add_backlog(__sk, __skb)				\
-do {	if (!(__sk)->sk_backlog.tail) {				\
-		(__sk)->sk_backlog.head =			\
-		     (__sk)->sk_backlog.tail = (__skb);		\
-	} else {						\
-		((__sk)->sk_backlog.tail)->next = (__skb);	\
-		(__sk)->sk_backlog.tail = (__skb);		\
-	}							\
-	(__skb)->next = NULL;					\
-} while(0)
+static inline void sk_add_backlog(struct sock *sk, struct sk_buff *skb)
+{
+	if (!sk->sk_backlog.tail) {
+		sk->sk_backlog.head = sk->sk_backlog.tail = skb;
+	} else {
+		sk->sk_backlog.tail->next = skb;
+		sk->sk_backlog.tail = skb;
+	}
+	skb->next = NULL;
+}
 
 #define sk_wait_event(__sk, __timeo, __condition)		\
 ({	int rc;							\
@@ -478,9 +489,9 @@ do {	if (!(__sk)->sk_backlog.tail) {				\
 	rc = __condition;					\
 	if (!rc) {						\
 		*(__timeo) = schedule_timeout(*(__timeo));	\
-		rc = __condition;				\
 	}							\
 	lock_sock(__sk);					\
+	rc = __condition;					\
 	rc;							\
 })
 
@@ -492,6 +503,9 @@ extern void sk_stream_kill_queues(struct sock *sk);
 
 extern int sk_wait_data(struct sock *sk, long *timeo);
 
+struct request_sock_ops;
+struct timewait_sock_ops;
+
 /* Networking protocol blocks we attach to sockets.
  * socket layer -> transport layer interface
  * transport -> network interface is defined by struct inet_proto
@@ -517,6 +531,14 @@ struct proto {
 	int			(*getsockopt)(struct sock *sk, int level, 
 					int optname, char __user *optval, 
 					int __user *option);  	 
+	int			(*compat_setsockopt)(struct sock *sk,
+					int level,
+					int optname, char __user *optval,
+					int optlen);
+	int			(*compat_getsockopt)(struct sock *sk,
+					int level,
+					int optname, char __user *optval,
+					int __user *option);
 	int			(*sendmsg)(struct kiocb *iocb, struct sock *sk,
 					   struct msghdr *msg, size_t len);
 	int			(*recvmsg)(struct kiocb *iocb, struct sock *sk,
@@ -555,12 +577,19 @@ struct proto {
 	kmem_cache_t		*slab;
 	unsigned int		obj_size;
 
+	atomic_t		*orphan_count;
+
+	struct request_sock_ops	*rsk_prot;
+	struct timewait_sock_ops *twsk_prot;
+
 	struct module		*owner;
 
 	char			name[32];
 
 	struct list_head	node;
-
+#ifdef SOCK_REFCNT_DEBUG
+	atomic_t		socks;
+#endif
 	struct {
 		int inuse;
 		u8  __pad[SMP_CACHE_BYTES - sizeof(int)];
@@ -570,6 +599,31 @@ struct proto {
 extern int proto_register(struct proto *prot, int alloc_slab);
 extern void proto_unregister(struct proto *prot);
 
+#ifdef SOCK_REFCNT_DEBUG
+static inline void sk_refcnt_debug_inc(struct sock *sk)
+{
+	atomic_inc(&sk->sk_prot->socks);
+}
+
+static inline void sk_refcnt_debug_dec(struct sock *sk)
+{
+	atomic_dec(&sk->sk_prot->socks);
+	printk(KERN_DEBUG "%s socket %p released, %d are still alive\n",
+	       sk->sk_prot->name, sk, atomic_read(&sk->sk_prot->socks));
+}
+
+static inline void sk_refcnt_debug_release(const struct sock *sk)
+{
+	if (atomic_read(&sk->sk_refcnt) != 1)
+		printk(KERN_DEBUG "Destruction of the %s socket %p delayed, refcnt=%d\n",
+		       sk->sk_prot->name, sk, atomic_read(&sk->sk_refcnt));
+}
+#else /* SOCK_REFCNT_DEBUG */
+#define sk_refcnt_debug_inc(sk) do { } while (0)
+#define sk_refcnt_debug_dec(sk) do { } while (0)
+#define sk_refcnt_debug_release(sk) do { } while (0)
+#endif /* SOCK_REFCNT_DEBUG */
+
 /* Called with local bh disabled */
 static __inline__ void sock_prot_inc_use(struct proto *prot)
 {
@@ -581,6 +635,15 @@ static __inline__ void sock_prot_dec_use(struct proto *prot)
 	prot->stats[smp_processor_id()].inuse--;
 }
 
+/* With per-bucket locks this operation is not-atomic, so that
+ * this version is not worse.
+ */
+static inline void __sk_prot_rehash(struct sock *sk)
+{
+	sk->sk_prot->unhash(sk);
+	sk->sk_prot->hash(sk);
+}
+
 /* About 10 seconds */
 #define SOCK_DESTROY_TIME (10*HZ)
 
@@ -666,6 +729,12 @@ static inline int sk_stream_rmem_schedule(struct sock *sk, struct sk_buff *skb)
 		sk_stream_mem_schedule(sk, skb->truesize, 1);
 }
 
+static inline int sk_stream_wmem_schedule(struct sock *sk, int size)
+{
+	return size <= sk->sk_forward_alloc ||
+	       sk_stream_mem_schedule(sk, size, 0);
+}
+
 /* Used by processes to "lock" a socket state, so that
  * interrupts and bottom half handlers won't change it
  * from under us. It essentially blocks any incoming
@@ -688,16 +757,19 @@ extern void FASTCALL(release_sock(struct sock *sk));
 #define bh_lock_sock(__sk)	spin_lock(&((__sk)->sk_lock.slock))
 #define bh_unlock_sock(__sk)	spin_unlock(&((__sk)->sk_lock.slock))
 
-extern struct sock		*sk_alloc(int family, int priority,
+extern struct sock		*sk_alloc(int family,
+					  gfp_t priority,
 					  struct proto *prot, int zero_it);
 extern void			sk_free(struct sock *sk);
+extern struct sock		*sk_clone(struct sock *sk,
+					  const gfp_t priority);
 
 extern struct sk_buff		*sock_wmalloc(struct sock *sk,
 					      unsigned long size, int force,
-					      int priority);
+					      gfp_t priority);
 extern struct sk_buff		*sock_rmalloc(struct sock *sk,
 					      unsigned long size, int force,
-					      int priority);
+					      gfp_t priority);
 extern void			sock_wfree(struct sk_buff *skb);
 extern void			sock_rfree(struct sk_buff *skb);
 
@@ -712,7 +784,8 @@ extern struct sk_buff 		*sock_alloc_send_skb(struct sock *sk,
 						     unsigned long size,
 						     int noblock,
 						     int *errcode);
-extern void *sock_kmalloc(struct sock *sk, int size, int priority);
+extern void *sock_kmalloc(struct sock *sk, int size,
+			  gfp_t priority);
 extern void sock_kfree_s(struct sock *sk, void *mem, int size);
 extern void sk_send_sigurg(struct sock *sk);
 
@@ -762,6 +835,10 @@ extern int sock_common_recvmsg(struct kiocb *iocb, struct socket *sock,
 			       struct msghdr *msg, size_t size, int flags);
 extern int sock_common_setsockopt(struct socket *sock, int level, int optname,
 				  char __user *optval, int optlen);
+extern int compat_sock_common_getsockopt(struct socket *sock, int level,
+		int optname, char __user *optval, int __user *optlen);
+extern int compat_sock_common_setsockopt(struct socket *sock, int level,
+		int optname, char __user *optval, int optlen);
 
 extern void sk_common_release(struct sock *sk);
 
@@ -802,8 +879,8 @@ static inline int sk_filter(struct sock *sk, struct sk_buff *skb, int needlock)
 		
 		filter = sk->sk_filter;
 		if (filter) {
-			int pkt_len = sk_run_filter(skb, filter->insns,
-						    filter->len);
+			unsigned int pkt_len = sk_run_filter(skb, filter->insns,
+							     filter->len);
 			if (!pkt_len)
 				err = -EPERM;
 			else
@@ -872,6 +949,8 @@ static inline void sock_put(struct sock *sk)
 		sk_free(sk);
 }
 
+extern int sk_receive_skb(struct sock *sk, struct sk_buff *skb);
+
 /* Detach socket from process context.
  * Announce socket dead, detach it from wait queue and inode.
  * Note that parent inode held reference count on this struct sock,
@@ -955,32 +1034,18 @@ sk_dst_reset(struct sock *sk)
 	write_unlock(&sk->sk_dst_lock);
 }
 
-static inline struct dst_entry *
-__sk_dst_check(struct sock *sk, u32 cookie)
-{
-	struct dst_entry *dst = sk->sk_dst_cache;
-
-	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
-		sk->sk_dst_cache = NULL;
-		dst_release(dst);
-		return NULL;
-	}
+extern struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
 
-	return dst;
-}
+extern struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);
 
-static inline struct dst_entry *
-sk_dst_check(struct sock *sk, u32 cookie)
+static inline void sk_setup_caps(struct sock *sk, struct dst_entry *dst)
 {
-	struct dst_entry *dst = sk_dst_get(sk);
-
-	if (dst && dst->obsolete && dst->ops->check(dst, cookie) == NULL) {
-		sk_dst_reset(sk);
-		dst_release(dst);
-		return NULL;
+	__sk_dst_set(sk, dst);
+	sk->sk_route_caps = dst->dev->features;
+	if (sk->sk_route_caps & NETIF_F_TSO) {
+		if (sock_flag(sk, SOCK_NO_LARGESEND) || dst->header_len)
+			sk->sk_route_caps &= ~NETIF_F_TSO;
 	}
-
-	return dst;
 }
 
 static inline void sk_charge_skb(struct sock *sk, struct sk_buff *skb)
@@ -1041,45 +1106,7 @@ extern void sk_reset_timer(struct sock *sk, struct timer_list* timer,
 
 extern void sk_stop_timer(struct sock *sk, struct timer_list* timer);
 
-static inline int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
-{
-	int err = 0;
-	int skb_len;
-
-	/* Cast skb->rcvbuf to unsigned... It's pointless, but reduces
-	   number of warnings when compiling with -W --ANK
-	 */
-	if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
-	    (unsigned)sk->sk_rcvbuf) {
-		err = -ENOMEM;
-		goto out;
-	}
-
-	/* It would be deadlock, if sock_queue_rcv_skb is used
-	   with socket lock! We assume that users of this
-	   function are lock free.
-	*/
-	err = sk_filter(sk, skb, 1);
-	if (err)
-		goto out;
-
-	skb->dev = NULL;
-	skb_set_owner_r(skb, sk);
-
-	/* Cache the SKB length before we tack it onto the receive
-	 * queue.  Once it is added it no longer belongs to us and
-	 * may be freed by other threads of control pulling packets
-	 * from the queue.
-	 */
-	skb_len = skb->len;
-
-	skb_queue_tail(&sk->sk_receive_queue, skb);
-
-	if (!sock_flag(sk, SOCK_DEAD))
-		sk->sk_data_ready(sk, skb_len);
-out:
-	return err;
-}
+extern int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
 
 static inline int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
 {
@@ -1102,7 +1129,10 @@ static inline int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb)
  
 static inline int sock_error(struct sock *sk)
 {
-	int err = xchg(&sk->sk_err, 0);
+	int err;
+	if (likely(!sk->sk_err))
+		return 0;
+	err = xchg(&sk->sk_err, 0);
 	return -err;
 }
 
@@ -1136,15 +1166,18 @@ static inline void sk_stream_moderate_sndbuf(struct sock *sk)
 }
 
 static inline struct sk_buff *sk_stream_alloc_pskb(struct sock *sk,
-						   int size, int mem, int gfp)
+						   int size, int mem,
+						   gfp_t gfp)
 {
-	struct sk_buff *skb = alloc_skb(size + sk->sk_prot->max_header, gfp);
+	struct sk_buff *skb;
+	int hdr_len;
 
+	hdr_len = SKB_DATA_ALIGN(sk->sk_prot->max_header);
+	skb = alloc_skb_fclone(size + hdr_len, gfp);
 	if (skb) {
 		skb->truesize += mem;
-		if (sk->sk_forward_alloc >= (int)skb->truesize ||
-		    sk_stream_mem_schedule(sk, skb->truesize, 0)) {
-			skb_reserve(skb, sk->sk_prot->max_header);
+		if (sk_stream_wmem_schedule(sk, skb->truesize)) {
+			skb_reserve(skb, hdr_len);
 			return skb;
 		}
 		__kfree_skb(skb);
@@ -1156,7 +1189,8 @@ static inline struct sk_buff *sk_stream_alloc_pskb(struct sock *sk,
 }
 
 static inline struct sk_buff *sk_stream_alloc_skb(struct sock *sk,
-						  int size, int gfp)
+						  int size,
+						  gfp_t gfp)
 {
 	return sk_stream_alloc_pskb(sk, size, 0, gfp);
 }
@@ -1165,10 +1199,8 @@ static inline struct page *sk_stream_alloc_page(struct sock *sk)
 {
 	struct page *page = NULL;
 
-	if (sk->sk_forward_alloc >= (int)PAGE_SIZE ||
-	    sk_stream_mem_schedule(sk, PAGE_SIZE, 0))
-		page = alloc_pages(sk->sk_allocation, 0);
-	else {
+	page = alloc_pages(sk->sk_allocation, 0);
+	if (!page) {
 		sk->sk_prot->enter_memory_pressure();
 		sk_stream_moderate_sndbuf(sk);
 	}
@@ -1181,6 +1213,12 @@ static inline struct page *sk_stream_alloc_page(struct sock *sk)
 		     (skb != (struct sk_buff *)&(sk)->sk_write_queue);	\
 		     skb = skb->next)
 
+/*from STCP for fast SACK Process*/
+#define sk_stream_for_retrans_queue_from(skb, sk)			\
+		for (; (skb != (sk)->sk_send_head) &&                   \
+		     (skb != (struct sk_buff *)&(sk)->sk_write_queue);	\
+		     skb = skb->next)
+
 /*
  *	Default write policy as shown to user space via poll/select/SIGIO
  */
@@ -1189,7 +1227,7 @@ static inline int sock_writeable(const struct sock *sk)
 	return atomic_read(&sk->sk_wmem_alloc) < (sk->sk_sndbuf / 2);
 }
 
-static inline int gfp_any(void)
+static inline gfp_t gfp_any(void)
 {
 	return in_softirq() ? GFP_ATOMIC : GFP_KERNEL;
 }
@@ -1220,16 +1258,19 @@ static inline int sock_intr_errno(long timeo)
 static __inline__ void
 sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
 {
-	struct timeval *stamp = &skb->stamp;
+	struct timeval stamp;
+
+	skb_get_timestamp(skb, &stamp);
 	if (sock_flag(sk, SOCK_RCVTSTAMP)) {
 		/* Race occurred between timestamp enabling and packet
 		   receiving.  Fill in the current time for now. */
-		if (stamp->tv_sec == 0)
-			do_gettimeofday(stamp);
+		if (stamp.tv_sec == 0)
+			do_gettimeofday(&stamp);
+		skb_set_timestamp(skb, &stamp);
 		put_cmsg(msg, SOL_SOCKET, SO_TIMESTAMP, sizeof(struct timeval),
-			 stamp);
+			 &stamp);
 	} else
-		sk->sk_stamp = *stamp;
+		sk->sk_stamp = stamp;
 }
 
 /**
@@ -1253,12 +1294,12 @@ extern int sock_get_timestamp(struct sock *, struct timeval __user *);
  *	Enable debug/info messages 
  */
 
-#if 0
-#define NETDEBUG(x)	do { } while (0)
-#define LIMIT_NETDEBUG(x) do {} while(0)
+#ifdef CONFIG_NETDEBUG
+#define NETDEBUG(fmt, args...)	printk(fmt,##args)
+#define LIMIT_NETDEBUG(fmt, args...) do { if (net_ratelimit()) printk(fmt,##args); } while(0)
 #else
-#define NETDEBUG(x)	do { x; } while (0)
-#define LIMIT_NETDEBUG(x) do { if (net_ratelimit()) { x; } } while(0)
+#define NETDEBUG(fmt, args...)	do { } while (0)
+#define LIMIT_NETDEBUG(fmt, args...) do { } while(0)
 #endif
 
 /*
@@ -1305,4 +1346,15 @@ static inline int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsign
 }
 #endif
 
+extern void sk_init(void);
+
+#ifdef CONFIG_SYSCTL
+extern struct ctl_table core_table[];
+#endif
+
+extern int sysctl_optmem_max;
+
+extern __u32 sysctl_wmem_default;
+extern __u32 sysctl_rmem_default;
+
 #endif	/* _SOCK_H */