[DCCP] CCID2: Initial CCID2 (TCP-Like) implementation

Original work by Andrea Bittau, Arnaldo Melo cleaned up and fixed several
issues on the merge process.

For now CCID2 was turned the default for all SOCK_DCCP connections, but this
will be remedied soon with the merge of the feature negotiation code.

Signed-off-by: Andrea Bittau <a.bittau@cs.ucl.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 088529f54965..268b4579d7e5 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -314,9 +314,9 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
 
 /* initial values for each feature */
 #define DCCPF_INITIAL_SEQUENCE_WINDOW           100
-/* FIXME: for now we're using CCID 3 (TFRC) */
-#define DCCPF_INITIAL_CCID                      3
-#define DCCPF_INITIAL_SEND_ACK_VECTOR           0
+/* FIXME: for now we're using CCID 2 (TCP-Like) */
+#define DCCPF_INITIAL_CCID                      2
+#define DCCPF_INITIAL_SEND_ACK_VECTOR           1
 /* FIXME: for now we're default to 1 but it should really be 0 */
 #define DCCPF_INITIAL_SEND_NDP_COUNT            1
 
@@ -430,6 +430,8 @@ struct dccp_sock {
         struct timeval                  dccps_timestamp_time;
         __u32                           dccps_timestamp_echo;
         __u32                           dccps_packet_size;
+        __u16                           dccps_l_ack_ratio;
+        __u16                           dccps_r_ack_ratio;
         unsigned long                   dccps_ndp_count;
         __u32                           dccps_mss_cache;
         struct dccp_options             dccps_options;