1 files changed, 19 insertions, 63 deletions

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index e4fd82e42104..ac4ca44c75ca 100644
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -55,24 +55,6 @@ struct tcphdr {
         __u16   urg_ptr;
 };
 
-
-enum {
-  TCP_ESTABLISHED = 1,
-  TCP_SYN_SENT,
-  TCP_SYN_RECV,
-  TCP_FIN_WAIT1,
-  TCP_FIN_WAIT2,
-  TCP_TIME_WAIT,
-  TCP_CLOSE,
-  TCP_CLOSE_WAIT,
-  TCP_LAST_ACK,
-  TCP_LISTEN,
-  TCP_CLOSING,   /* now a valid state */
-
-  TCP_MAX_STATES /* Leave at the end! */
-};
-
-#define TCP_STATE_MASK  0xF
 #define TCP_ACTION_FIN  (1 << 7)
 
 enum {
@@ -195,8 +177,9 @@ struct tcp_info
 
 #include <linux/config.h>
 #include <linux/skbuff.h>
-#include <linux/ip.h>
 #include <net/sock.h>
+#include <net/inet_connection_sock.h>
+#include <net/inet_timewait_sock.h>
 
 /* This defines a selective acknowledgement block. */
 struct tcp_sack_block {
@@ -236,8 +219,8 @@ static inline struct tcp_request_sock *tcp_rsk(const struct request_sock *req)
 }
 
 struct tcp_sock {
-        /* inet_sock has to be the first member of tcp_sock */
-        struct inet_sock        inet;
+        /* inet_connection_sock has to be the first member of tcp_sock */
+        struct inet_connection_sock     inet_conn;
         int     tcp_header_len; /* Bytes of tcp header to send          */
 
 /*
@@ -258,19 +241,6 @@ struct tcp_sock {
         __u32   snd_sml;        /* Last byte of the most recently transmitted small packet */
         __u32   rcv_tstamp;     /* timestamp of last received ACK (for keepalives) */
         __u32   lsndtime;       /* timestamp of last sent data packet (for restart window) */
-        struct tcp_bind_bucket *bind_hash;
-        /* Delayed ACK control data */
-        struct {
-                __u8    pending;        /* ACK is pending */
-                __u8    quick;          /* Scheduled number of quick acks       */
-                __u8    pingpong;       /* The session is interactive           */
-                __u8    blocked;        /* Delayed ACK was blocked by socket lock*/
-                __u32   ato;            /* Predicted tick of soft clock         */
-                unsigned long timeout;  /* Currently scheduled timeout          */
-                __u32   lrcvtime;       /* timestamp of last received data packet*/
-                __u16   last_seg_size;  /* Size of last incoming segment        */
-                __u16   rcv_mss;        /* MSS used for delayed ACK decisions   */ 
-        } ack;
 
         /* Data for direct copy to user */
         struct {
@@ -288,19 +258,15 @@ struct tcp_sock {
         __u32   mss_cache;      /* Cached effective mss, not including SACKS */
         __u16   xmit_size_goal; /* Goal for segmenting output packets   */
         __u16   ext_header_len; /* Network protocol overhead (IP/IPv6 options) */
-        __u8    ca_state;       /* State of fast-retransmit machine     */
-        __u8    retransmits;    /* Number of unrecovered RTO timeouts.  */
 
-        __u16   advmss;         /* Advertised MSS                       */
         __u32   window_clamp;   /* Maximal window to advertise          */
         __u32   rcv_ssthresh;   /* Current window clamp                 */
 
         __u32   frto_highmark;  /* snd_nxt when RTO occurred */
         __u8    reordering;     /* Packet reordering metric.            */
         __u8    frto_counter;   /* Number of new acks after RTO */
-
-        __u8    unused;
-        __u8    defer_accept;   /* User waits for some data after accept() */
+        __u8    nonagle;        /* Disable Nagle algorithm?             */
+        __u8    keepalive_probes; /* num of allowed keep alive probes   */
 
 /* RTT measurement */
         __u32   srtt;           /* smoothed round trip time << 3        */
@@ -308,19 +274,13 @@ struct tcp_sock {
         __u32   mdev_max;       /* maximal mdev for the last rtt period */
         __u32   rttvar;         /* smoothed mdev_max                    */
         __u32   rtt_seq;        /* sequence number to update rttvar     */
-        __u32   rto;            /* retransmit timeout                   */
 
         __u32   packets_out;    /* Packets which are "in flight"        */
         __u32   left_out;       /* Packets which leaved network */
         __u32   retrans_out;    /* Retransmitted packets out            */
-        __u8    backoff;        /* backoff                              */
 /*
  *      Options received (usually on last packet, some only on SYN packets).
  */
-        __u8    nonagle;        /* Disable Nagle algorithm?             */
-        __u8    keepalive_probes; /* num of allowed keep alive probes   */
-
-        __u8    probes_out;     /* unanswered 0 window probes           */
         struct tcp_options_received rx_opt;
 
 /*
@@ -333,11 +293,6 @@ struct tcp_sock {
         __u32   snd_cwnd_used;
         __u32   snd_cwnd_stamp;
 
-        /* Two commonly used timers in both sender and receiver paths. */
-        unsigned long           timeout;
-        struct timer_list       retransmit_timer;       /* Resend (no ack)      */
-        struct timer_list       delack_timer;           /* Ack delay            */
-
         struct sk_buff_head     out_of_order_queue; /* Out of order segments go here */
 
         struct tcp_func         *af_specific;   /* Operations which are AF_INET{4,6} specific   */
@@ -352,8 +307,7 @@ struct tcp_sock {
         struct tcp_sack_block duplicate_sack[1]; /* D-SACK block */
         struct tcp_sack_block selective_acks[4]; /* The SACKS themselves*/
 
-        __u8    syn_retries;    /* num of allowed syn retries */
-        __u8    ecn_flags;      /* ECN status bits.                     */
+        __u16   advmss;         /* Advertised MSS                       */
         __u16   prior_ssthresh; /* ssthresh saved at recovery start     */
         __u32   lost_out;       /* Lost packets                 */
         __u32   sacked_out;     /* SACK'd packets                       */
@@ -367,14 +321,12 @@ struct tcp_sock {
         int     undo_retrans;   /* number of undoable retransmissions. */
         __u32   urg_seq;        /* Seq of received urgent pointer */
         __u16   urg_data;       /* Saved octet of OOB data and control flags */
-        __u8    pending;        /* Scheduled timer event        */
         __u8    urg_mode;       /* In urgent mode               */
+        __u8    ecn_flags;      /* ECN status bits.                     */
         __u32   snd_up;         /* Urgent pointer               */
 
         __u32   total_retrans;  /* Total retransmits for entire connection */
 
-        struct request_sock_queue accept_queue; /* FIFO of established children */
-
         unsigned int            keepalive_time;   /* time before keep alive takes place */
         unsigned int            keepalive_intvl;  /* time interval between keep alive probes */
         int                     linger2;
@@ -394,11 +346,6 @@ struct tcp_sock {
                 __u32   seq;
                 __u32   time;
         } rcvq_space;
-
-        /* Pluggable TCP congestion control hook */
-        struct tcp_congestion_ops *ca_ops;
-        u32     ca_priv[16];
-#define TCP_CA_PRIV_SIZE        (16*sizeof(u32))
 };
 
 static inline struct tcp_sock *tcp_sk(const struct sock *sk)
@@ -406,9 +353,18 @@ static inline struct tcp_sock *tcp_sk(const struct sock *sk)
         return (struct tcp_sock *)sk;
 }
 
-static inline void *tcp_ca(const struct tcp_sock *tp)
+struct tcp_timewait_sock {
+        struct inet_timewait_sock tw_sk;
+        __u32                     tw_rcv_nxt;
+        __u32                     tw_snd_nxt;
+        __u32                     tw_rcv_wnd;
+        __u32                     tw_ts_recent;
+        long                      tw_ts_recent_stamp;
+};
+
+static inline struct tcp_timewait_sock *tcp_twsk(const struct sock *sk)
 {
-        return (void *) tp->ca_priv;
+        return (struct tcp_timewait_sock *)sk;
 }
 
 #endif