X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=net%2Fdccp%2Fackvec.h;h=96504a3b16e43dc3a00ada1a3f44f709394c3aae;hb=ec0bf39a471bf6fcd01def2bd677128cea940b73;hp=cf8f20ce23a9cf76ad5b58b2277e2553ad924777;hpb=71fa0a849b384f066dea6a2351c722c19846f4ac;p=powerpc.git

diff --git a/net/dccp/ackvec.h b/net/dccp/ackvec.h
index cf8f20ce23..96504a3b16 100644
--- a/net/dccp/ackvec.h
+++ b/net/dccp/ackvec.h
@@ -17,7 +17,9 @@
 #include <linux/types.h>
 
 /* Read about the ECN nonce to see why it is 253 */
-#define DCCP_MAX_ACKVEC_LEN 253
+#define DCCP_MAX_ACKVEC_OPT_LEN 253
+/* We can spread an ack vector across multiple options */
+#define DCCP_MAX_ACKVEC_LEN (DCCP_MAX_ACKVEC_OPT_LEN * 2)
 
 #define DCCP_ACKVEC_STATE_RECEIVED	0
 #define DCCP_ACKVEC_STATE_ECN_MARKED	(1 << 6)
@@ -41,7 +43,6 @@
  * Ack Vectors it has recently sent. For each packet sent carrying an
  * Ack Vector, it remembers four variables:
  *
- * @dccpav_ack_ptr - the value of buf_head at the time of acknowledgement.
  * @dccpav_records - list of dccp_ackvec_record
  * @dccpav_ack_nonce - the one-bit sum of the ECN Nonces for all State 0.
  *
@@ -52,9 +53,8 @@ struct dccp_ackvec {
 	u64		dccpav_buf_ackno;
 	struct list_head dccpav_records;
 	struct timeval	dccpav_time;
-	u8		dccpav_buf_head;
-	u8		dccpav_ack_ptr;
-	u8		dccpav_vec_len;
+	u16		dccpav_buf_head;
+	u16		dccpav_vec_len;
 	u8		dccpav_buf_nonce;
 	u8		dccpav_ack_nonce;
 	u8		dccpav_buf[DCCP_MAX_ACKVEC_LEN];
@@ -77,9 +77,9 @@ struct dccp_ackvec_record {
 	struct list_head dccpavr_node;
 	u64		 dccpavr_ack_seqno;
 	u64		 dccpavr_ack_ackno;
-	u8		 dccpavr_ack_ptr;
+	u16		 dccpavr_ack_ptr;
+	u16		 dccpavr_sent_len;
 	u8		 dccpavr_ack_nonce;
-	u8		 dccpavr_sent_len;
 };
 
 struct sock;
@@ -98,7 +98,8 @@ extern int dccp_ackvec_add(struct dccp_ackvec *av, const struct sock *sk,
 extern void dccp_ackvec_check_rcv_ackno(struct dccp_ackvec *av,
 					struct sock *sk, const u64 ackno);
 extern int dccp_ackvec_parse(struct sock *sk, const struct sk_buff *skb,
-			     const u8 opt, const u8 *value, const u8 len);
+			     u64 *ackno, const u8 opt,
+			     const u8 *value, const u8 len);
 
 extern int dccp_insert_option_ackvec(struct sock *sk, struct sk_buff *skb);
 
@@ -137,7 +138,8 @@ static inline void dccp_ackvec_check_rcv_ackno(struct dccp_ackvec *av,
 }
 
 static inline int dccp_ackvec_parse(struct sock *sk, const struct sk_buff *skb,
-				    const u8 opt, const u8 *value, const u8 len)
+				    const u64 *ackno, const u8 opt,
+				    const u8 *value, const u8 len)
 {
 	return -1;
 }