4 files changed, 72 insertions, 13 deletions

diff --git a/net/dccp/ccids/ccid3.c b/net/dccp/ccids/ccid3.c
index 38aa8498611..aa68e0ab274 100644
--- a/net/dccp/ccids/ccid3.c
+++ b/net/dccp/ccids/ccid3.c
@@ -1120,6 +1120,60 @@ static void ccid3_hc_tx_get_info(struct sock *sk, struct tcp_info *info)
 	info->tcpi_rtt = hctx->ccid3hctx_rtt;
 }
 
+static int ccid3_hc_rx_getsockopt(struct sock *sk, const int optname, int len,
+				  u32 __user *optval, int __user *optlen)
+{
+	const struct ccid3_hc_rx_sock *hcrx = ccid3_hc_rx_sk(sk);
+	const void *val;
+	
+	/* Listen socks doesn't have a private CCID block */
+	if (sk->sk_state == DCCP_LISTEN)
+		return -EINVAL;
+
+	switch (optname) {
+	case DCCP_SOCKOPT_CCID_RX_INFO:
+		if (len < sizeof(hcrx->ccid3hcrx_tfrc))
+			return -EINVAL;
+		len = sizeof(hcrx->ccid3hcrx_tfrc);
+		val = &hcrx->ccid3hcrx_tfrc;
+		break;
+	default:
+		return -ENOPROTOOPT;
+	}
+
+	if (put_user(len, optlen) || copy_to_user(optval, val, len))
+		return -EFAULT;
+
+	return 0;
+}
+
+static int ccid3_hc_tx_getsockopt(struct sock *sk, const int optname, int len,
+				  u32 __user *optval, int __user *optlen)
+{
+	const struct ccid3_hc_tx_sock *hctx = ccid3_hc_tx_sk(sk);
+	const void *val;
+	
+	/* Listen socks doesn't have a private CCID block */
+	if (sk->sk_state == DCCP_LISTEN)
+		return -EINVAL;
+
+	switch (optname) {
+	case DCCP_SOCKOPT_CCID_TX_INFO:
+		if (len < sizeof(hctx->ccid3hctx_tfrc))
+			return -EINVAL;
+		len = sizeof(hctx->ccid3hctx_tfrc);
+		val = &hctx->ccid3hctx_tfrc;
+		break;
+	default:
+		return -ENOPROTOOPT;
+	}
+
+	if (put_user(len, optlen) || copy_to_user(optval, val, len))
+		return -EFAULT;
+
+	return 0;
+}
+
 static struct ccid ccid3 = {
 	.ccid_id		   = 3,
 	.ccid_name		   = "ccid3",
@@ -1139,6 +1193,8 @@ static struct ccid ccid3 = {
 	.ccid_hc_rx_packet_recv	   = ccid3_hc_rx_packet_recv,
 	.ccid_hc_rx_get_info	   = ccid3_hc_rx_get_info,
 	.ccid_hc_tx_get_info	   = ccid3_hc_tx_get_info,
+	.ccid_hc_rx_getsockopt	   = ccid3_hc_rx_getsockopt,
+	.ccid_hc_tx_getsockopt	   = ccid3_hc_tx_getsockopt,
 };
  
 module_param(ccid3_debug, int, 0444);
diff --git a/net/dccp/ccids/ccid3.h b/net/dccp/ccids/ccid3.h
index eb248778eea..0bde4583d09 100644
--- a/net/dccp/ccids/ccid3.h
+++ b/net/dccp/ccids/ccid3.h
@@ -40,6 +40,7 @@
 #include <linux/list.h>
 #include <linux/time.h>
 #include <linux/types.h>
+#include <linux/tfrc.h>
 
 #define TFRC_MIN_PACKET_SIZE	   16
 #define TFRC_STD_PACKET_SIZE	  256
@@ -93,12 +94,15 @@ struct ccid3_options_received {
   * @ccid3hctx_hist - Packet history
   */
 struct ccid3_hc_tx_sock {
-	u32				ccid3hctx_x;
-	u32				ccid3hctx_x_recv;
-	u32				ccid3hctx_x_calc;
+	struct tfrc_tx_info		ccid3hctx_tfrc;
+#define ccid3hctx_x			ccid3hctx_tfrc.tfrctx_x
+#define ccid3hctx_x_recv		ccid3hctx_tfrc.tfrctx_x_recv
+#define ccid3hctx_x_calc		ccid3hctx_tfrc.tfrctx_x_calc
+#define ccid3hctx_rtt			ccid3hctx_tfrc.tfrctx_rtt
+#define ccid3hctx_p			ccid3hctx_tfrc.tfrctx_p
+#define ccid3hctx_t_rto			ccid3hctx_tfrc.tfrctx_rto
+#define ccid3hctx_t_ipi			ccid3hctx_tfrc.tfrctx_ipi
 	u16				ccid3hctx_s;
-	u32				ccid3hctx_rtt;
-	u32				ccid3hctx_p;
   	u8				ccid3hctx_state;
 	u8				ccid3hctx_last_win_count;
 	u8				ccid3hctx_idle;
@@ -106,19 +110,19 @@ struct ccid3_hc_tx_sock {
 	struct timer_list		ccid3hctx_no_feedback_timer;
 	struct timeval			ccid3hctx_t_ld;
 	struct timeval			ccid3hctx_t_nom;
-	u32				ccid3hctx_t_rto;
-	u32				ccid3hctx_t_ipi;
 	u32				ccid3hctx_delta;
 	struct list_head		ccid3hctx_hist;
 	struct ccid3_options_received	ccid3hctx_options_received;
 };
 
 struct ccid3_hc_rx_sock {
+	struct tfrc_rx_info	ccid3hcrx_tfrc;
+#define ccid3hcrx_x_recv	ccid3hcrx_tfrc.tfrcrx_x_recv
+#define ccid3hcrx_rtt		ccid3hcrx_tfrc.tfrcrx_rtt
+#define ccid3hcrx_p		ccid3hcrx_tfrc.tfrcrx_p
   	u64			ccid3hcrx_seqno_last_counter:48,
 				ccid3hcrx_state:8,
 				ccid3hcrx_last_counter:4;
-	u32			ccid3hcrx_rtt;
-  	u32			ccid3hcrx_p;
   	u32			ccid3hcrx_bytes_recv;
   	struct timeval		ccid3hcrx_tstamp_last_feedback;
   	struct timeval		ccid3hcrx_tstamp_last_ack;
@@ -127,7 +131,6 @@ struct ccid3_hc_rx_sock {
   	u16			ccid3hcrx_s;
   	u32			ccid3hcrx_pinv;
   	u32			ccid3hcrx_elapsed_time;
-  	u32			ccid3hcrx_x_recv;
 };
 
 static inline struct ccid3_hc_tx_sock *ccid3_hc_tx_sk(const struct sock *sk)
diff --git a/net/dccp/ccids/lib/loss_interval.h b/net/dccp/ccids/lib/loss_interval.h
index 13ad47ba142..417d9d82df3 100644
--- a/net/dccp/ccids/lib/loss_interval.h
+++ b/net/dccp/ccids/lib/loss_interval.h
@@ -36,7 +36,7 @@ struct dccp_li_hist_entry {
 
 static inline struct dccp_li_hist_entry *
 		dccp_li_hist_entry_new(struct dccp_li_hist *hist,
-				       const unsigned int __nocast prio)
+				       const gfp_t prio)
 {
 	return kmem_cache_alloc(hist->dccplih_slab, prio);
 }
diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h
index b375ebdb7dc..122e96737ff 100644
--- a/net/dccp/ccids/lib/packet_history.h
+++ b/net/dccp/ccids/lib/packet_history.h
@@ -86,7 +86,7 @@ extern struct dccp_rx_hist_entry *
 
 static inline struct dccp_tx_hist_entry *
 		dccp_tx_hist_entry_new(struct dccp_tx_hist *hist,
-				       const unsigned int __nocast prio)
+				       const gfp_t prio)
 {
 	struct dccp_tx_hist_entry *entry = kmem_cache_alloc(hist->dccptxh_slab,
 							    prio);
@@ -137,7 +137,7 @@ static inline struct dccp_rx_hist_entry *
 				     	    const struct sock *sk, 
 				     	    const u32 ndp, 
 					    const struct sk_buff *skb,
-					    const unsigned int __nocast prio)
+					    const gfp_t prio)
 {
 	struct dccp_rx_hist_entry *entry = kmem_cache_alloc(hist->dccprxh_slab,
 							    prio);