[DCCP] minisock: Rename struct dccp_options to struct dccp_minisock

This will later be included in struct dccp_request_sock so that we can
have per connection feature negotiation state while in the 3way
handshake, when we clone the DCCP_ROLE_LISTEN socket (in
dccp_create_openreq_child) we'll just copy this state from
dreq_minisock to dccps_minisock.

Also the feature negotiation and option parsing code will mostly touch
dccps_minisock, which will simplify some stuff.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 26 insertions, 17 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index e35f680f909b..676333b9fad0 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -328,21 +328,24 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
 #define DCCP_NDP_LIMIT 0xFFFFFF
 
 /**
-  * struct dccp_options - option values for a DCCP connection
-  *	@dccpo_sequence_window - Sequence Window Feature (section 7.5.2)
-  *	@dccpo_ccid - Congestion Control Id (CCID) (section 10)
-  *	@dccpo_send_ack_vector - Send Ack Vector Feature (section 11.5)
-  *	@dccpo_send_ndp_count - Send NDP Count Feature (7.7.2)
+  * struct dccp_minisock - Minimal DCCP connection representation
+  *
+  * Will be used to pass the state from dccp_request_sock to dccp_sock.
+  *
+  * @dccpms_sequence_window - Sequence Window Feature (section 7.5.2)
+  * @dccpms_ccid - Congestion Control Id (CCID) (section 10)
+  * @dccpms_send_ack_vector - Send Ack Vector Feature (section 11.5)
+  * @dccpms_send_ndp_count - Send NDP Count Feature (7.7.2)
   */
-struct dccp_options {
-	__u64	dccpo_sequence_window;
-	__u8	dccpo_rx_ccid;
-	__u8	dccpo_tx_ccid;
-	__u8	dccpo_send_ack_vector;
-	__u8	dccpo_send_ndp_count;
-	__u8			dccpo_ack_ratio;
-	struct list_head	dccpo_pending;
-	struct list_head	dccpo_conf;
+struct dccp_minisock {
+	__u64			dccpms_sequence_window;
+	__u8			dccpms_rx_ccid;
+	__u8			dccpms_tx_ccid;
+	__u8			dccpms_send_ack_vector;
+	__u8			dccpms_send_ndp_count;
+	__u8			dccpms_ack_ratio;
+	struct list_head	dccpms_pending;
+	struct list_head	dccpms_conf;
 };
 
 struct dccp_opt_conf {
@@ -360,8 +363,9 @@ struct dccp_opt_pend {
 	struct dccp_opt_conf    *dccpop_sc;
 };
 
-extern void __dccp_options_init(struct dccp_options *dccpo);
-extern void dccp_options_init(struct dccp_options *dccpo);
+extern void __dccp_minisock_init(struct dccp_minisock *dmsk);
+extern void dccp_minisock_init(struct dccp_minisock *dmsk);
+
 extern int dccp_parse_options(struct sock *sk, struct sk_buff *skb);
 
 struct dccp_request_sock {
@@ -457,7 +461,7 @@ struct dccp_sock {
 	__u16				dccps_r_ack_ratio;
 	unsigned long			dccps_ndp_count;
 	__u32				dccps_mss_cache;
-	struct dccp_options		dccps_options;
+	struct dccp_minisock		dccps_minisock;
 	struct dccp_ackvec		*dccps_hc_rx_ackvec;
 	struct ccid			*dccps_hc_rx_ccid;
 	struct ccid			*dccps_hc_tx_ccid;
@@ -473,6 +477,11 @@ static inline struct dccp_sock *dccp_sk(const struct sock *sk)
 	return (struct dccp_sock *)sk;
 }
 
+static inline struct dccp_minisock *dccp_msk(const struct sock *sk)
+{
+	return (struct dccp_minisock *)&dccp_sk(sk)->dccps_minisock;
+}
+
 static inline int dccp_service_not_initialized(const struct sock *sk)
 {
 	return dccp_sk(sk)->dccps_service == DCCP_SERVICE_INVALID_VALUE;