X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Fnet%2Frequest_sock.h;h=c7190846e128e21221106379e619589b3d7f0603;hb=711d60a9e7f88e394ccca10f5fc83f95f0cea5b1;hp=72fd6f5e86b19bbb1fc2444620d4764456469403;hpb=2ad69c55a282315e6119cf7fd744f26a925bdfd2;p=safe%2Fjmp%2Flinux-2.6

diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 72fd6f5..c719084 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
+#include <linux/bug.h>
 
 #include <net/sock.h>
 
@@ -28,14 +29,15 @@ struct proto;
 
 struct request_sock_ops {
 	int		family;
-	kmem_cache_t	*slab;
 	int		obj_size;
+	struct kmem_cache	*slab;
+	char		*slab_name;
 	int		(*rtx_syn_ack)(struct sock *sk,
-				       struct request_sock *req,
-				       struct dst_entry *dst);
-	void		(*send_ack)(struct sk_buff *skb,
+				       struct request_sock *req);
+	void		(*send_ack)(struct sock *sk, struct sk_buff *skb,
 				    struct request_sock *req);
-	void		(*send_reset)(struct sk_buff *skb);
+	void		(*send_reset)(struct sock *sk,
+				      struct sk_buff *skb);
 	void		(*destructor)(struct request_sock *req);
 };
 
@@ -45,19 +47,21 @@ struct request_sock {
 	struct request_sock		*dl_next; /* Must be first member! */
 	u16				mss;
 	u8				retrans;
-	u8				__pad;
+	u8				cookie_ts; /* syncookie: encode tcpopts in timestamp */
 	/* The following two fields can be easily recomputed I think -AK */
 	u32				window_clamp; /* window clamp at creation time */
 	u32				rcv_wnd;	  /* rcv_wnd offered first time */
 	u32				ts_recent;
 	unsigned long			expires;
-	struct request_sock_ops		*rsk_ops;
+	const struct request_sock_ops	*rsk_ops;
 	struct sock			*sk;
+	u32				secid;
+	u32				peer_secid;
 };
 
-static inline struct request_sock *reqsk_alloc(struct request_sock_ops *ops)
+static inline struct request_sock *reqsk_alloc(const struct request_sock_ops *ops)
 {
-	struct request_sock *req = kmem_cache_alloc(ops->slab, SLAB_ATOMIC);
+	struct request_sock *req = kmem_cache_alloc(ops->slab, GFP_ATOMIC);
 
 	if (req != NULL)
 		req->rsk_ops = ops;
@@ -89,6 +93,7 @@ struct listen_sock {
 	int			qlen_young;
 	int			clock_hand;
 	u32			hash_rnd;
+	u32			nr_table_entries;
 	struct request_sock	*syn_table[0];
 };
 
@@ -96,6 +101,7 @@ struct listen_sock {
  *
  * @rskq_accept_head - FIFO head of established children
  * @rskq_accept_tail - FIFO tail of established children
+ * @rskq_defer_accept - User waits for some data after accept()
  * @syn_wait_lock - serializer
  *
  * %syn_wait_lock is necessary only to avoid proc interface having to grab the main
@@ -111,35 +117,23 @@ struct request_sock_queue {
 	struct request_sock	*rskq_accept_head;
 	struct request_sock	*rskq_accept_tail;
 	rwlock_t		syn_wait_lock;
+	u8			rskq_defer_accept;
+	/* 3 bytes hole, try to pack */
 	struct listen_sock	*listen_opt;
 };
 
 extern int reqsk_queue_alloc(struct request_sock_queue *queue,
-			     const int nr_table_entries);
+			     unsigned int nr_table_entries);
 
-static inline struct listen_sock *reqsk_queue_yank_listen_sk(struct request_sock_queue *queue)
-{
-	struct listen_sock *lopt;
-
-	write_lock_bh(&queue->syn_wait_lock);
-	lopt = queue->listen_opt;
-	queue->listen_opt = NULL;
-	write_unlock_bh(&queue->syn_wait_lock);
-
-	return lopt;
-}
-
-static inline void reqsk_queue_destroy(struct request_sock_queue *queue)
-{
-	kfree(reqsk_queue_yank_listen_sk(queue));
-}
+extern void __reqsk_queue_destroy(struct request_sock_queue *queue);
+extern void reqsk_queue_destroy(struct request_sock_queue *queue);
 
 static inline struct request_sock *
 	reqsk_queue_yank_acceptq(struct request_sock_queue *queue)
 {
 	struct request_sock *req = queue->rskq_accept_head;
 
-	queue->rskq_accept_head = queue->rskq_accept_head = NULL;
+	queue->rskq_accept_head = NULL;
 	return req;
 }
 
@@ -178,7 +172,7 @@ static inline struct request_sock *reqsk_queue_remove(struct request_sock_queue
 {
 	struct request_sock *req = queue->rskq_accept_head;
 
-	BUG_TRAP(req != NULL);
+	WARN_ON(req == NULL);
 
 	queue->rskq_accept_head = req->dl_next;
 	if (queue->rskq_accept_head == NULL)
@@ -193,7 +187,7 @@ static inline struct sock *reqsk_queue_get_child(struct request_sock_queue *queu
 	struct request_sock *req = reqsk_queue_remove(queue);
 	struct sock *child = req->sk;
 
-	BUG_TRAP(child != NULL);
+	WARN_ON(child == NULL);
 
 	sk_acceptq_removed(parent);
 	__reqsk_free(req);
@@ -221,24 +215,24 @@ static inline int reqsk_queue_added(struct request_sock_queue *queue)
 	return prev_qlen;
 }
 
-static inline int reqsk_queue_len(struct request_sock_queue *queue)
+static inline int reqsk_queue_len(const struct request_sock_queue *queue)
 {
 	return queue->listen_opt != NULL ? queue->listen_opt->qlen : 0;
 }
 
-static inline int reqsk_queue_len_young(struct request_sock_queue *queue)
+static inline int reqsk_queue_len_young(const struct request_sock_queue *queue)
 {
 	return queue->listen_opt->qlen_young;
 }
 
-static inline int reqsk_queue_is_full(struct request_sock_queue *queue)
+static inline int reqsk_queue_is_full(const struct request_sock_queue *queue)
 {
 	return queue->listen_opt->qlen >> queue->listen_opt->max_qlen_log;
 }
 
 static inline void reqsk_queue_hash_req(struct request_sock_queue *queue,
 					u32 hash, struct request_sock *req,
-					unsigned timeout)
+					unsigned long timeout)
 {
 	struct listen_sock *lopt = queue->listen_opt;