1 files changed, 38 insertions, 21 deletions

diff --git a/include/linux/dccp.h b/include/linux/dccp.h
index 8bf4bacb5051..71fab4311e92 100644
--- a/include/linux/dccp.h
+++ b/include/linux/dccp.h
@@ -4,16 +4,6 @@
 #include <linux/types.h>
 #include <asm/byteorder.h>
 
-/* Structure describing an Internet (DCCP) socket address. */
-struct sockaddr_dccp {
-        __u16   sdccp_family;   /* Address family   */
-        __u16   sdccp_port;     /* Port number      */
-        __u32   sdccp_addr;     /* Internet address */
-        __u32   sdccp_service;  /* Service          */
-        /* Pad to size of `struct sockaddr': 16 bytes . */
-        __u32   sdccp_pad;
-};
-
 /**
  * struct dccp_hdr - generic part of DCCP packet header
  *
@@ -188,6 +178,11 @@ enum {
 
 /* DCCP socket options */
 #define DCCP_SOCKOPT_PACKET_SIZE        1
+#define DCCP_SOCKOPT_SERVICE            2
+#define DCCP_SOCKOPT_CCID_RX_INFO       128
+#define DCCP_SOCKOPT_CCID_TX_INFO       192
+
+#define DCCP_SERVICE_LIST_MAX_LEN      32
 
 #ifdef __KERNEL__
 
@@ -337,7 +332,8 @@ static inline unsigned int dccp_hdr_len(const struct sk_buff *skb)
   */
 struct dccp_options {
         __u64   dccpo_sequence_window;
-        __u8    dccpo_ccid;
+        __u8    dccpo_rx_ccid;
+        __u8    dccpo_tx_ccid;
         __u8    dccpo_send_ack_vector;
         __u8    dccpo_send_ndp_count;
 };
@@ -360,14 +356,8 @@ static inline struct dccp_request_sock *dccp_rsk(const struct request_sock *req)
 
 extern struct inet_timewait_death_row dccp_death_row;
 
-/* Read about the ECN nonce to see why it is 253 */
-#define DCCP_MAX_ACK_VECTOR_LEN 253
-
 struct dccp_options_received {
-        u32     dccpor_ndp:24,
-                dccpor_ack_vector_len:8;
-        u32     dccpor_ack_vector_idx:10;
-        /* 22 bits hole, try to pack */
+        u32     dccpor_ndp; /* only 24 bits */
         u32     dccpor_timestamp;
         u32     dccpor_timestamp_echo;
         u32     dccpor_elapsed_time;
@@ -382,6 +372,27 @@ enum dccp_role {
         DCCP_ROLE_SERVER,
 };
 
+struct dccp_service_list {
+        __u32   dccpsl_nr;
+        __u32   dccpsl_list[0];
+};
+
+#define DCCP_SERVICE_INVALID_VALUE htonl((__u32)-1)
+
+static inline int dccp_list_has_service(const struct dccp_service_list *sl,
+                                        const u32 service)
+{
+        if (likely(sl != NULL)) {
+                u32 i = sl->dccpsl_nr;
+                while (i--)
+                        if (sl->dccpsl_list[i] == service)
+                                return 1; 
+        }
+        return 0;
+}
+
+struct dccp_ackvec;
+
 /**
  * struct dccp_sock - DCCP socket state
  *
@@ -402,7 +413,7 @@ enum dccp_role {
  * @dccps_packet_size - Set thru setsockopt
  * @dccps_role - Role of this sock, one of %dccp_role
  * @dccps_ndp_count - number of Non Data Packets since last data packet
- * @dccps_hc_rx_ackpkts - receiver half connection acked packets
+ * @dccps_hc_rx_ackvec - rx half connection ack vector
  */
 struct dccp_sock {
         /* inet_connection_sock has to be the first member of dccp_sock */
@@ -417,7 +428,8 @@ struct dccp_sock {
         __u64                           dccps_gss;
         __u64                           dccps_gsr;
         __u64                           dccps_gar;
-        unsigned long                   dccps_service;
+        __u32                           dccps_service;
+        struct dccp_service_list        *dccps_service_list;
         struct timeval                  dccps_timestamp_time;
         __u32                           dccps_timestamp_echo;
         __u32                           dccps_packet_size;
@@ -426,7 +438,7 @@ struct dccp_sock {
         __u32                           dccps_pmtu_cookie;
         __u32                           dccps_mss_cache;
         struct dccp_options             dccps_options;
-        struct dccp_ackpkts             *dccps_hc_rx_ackpkts;
+        struct dccp_ackvec              *dccps_hc_rx_ackvec;
         void                            *dccps_hc_rx_ccid_private;
         void                            *dccps_hc_tx_ccid_private;
         struct ccid                     *dccps_hc_rx_ccid;
@@ -443,6 +455,11 @@ static inline struct dccp_sock *dccp_sk(const struct sock *sk)
         return (struct dccp_sock *)sk;
 }
 
+static inline int dccp_service_not_initialized(const struct sock *sk)
+{
+        return dccp_sk(sk)->dccps_service == DCCP_SERVICE_INVALID_VALUE;
+}
+
 static inline const char *dccp_role(const struct sock *sk)
 {
         switch (dccp_sk(sk)->dccps_role) {