X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=include%2Flinux%2Ftcp.h;h=2d36f6db37067b84e1343979079395c3e8127a11;hb=ae8064ac32d07f609114d73928cdef803be87134;hp=dfd93d03f5d28df6bd112e590ae30c43a2f32a85;hpb=5f8ef48d240963093451bcf83df89f1a1364f51d;p=safe%2Fjmp%2Flinux-2.6 diff --git a/include/linux/tcp.h b/include/linux/tcp.h index dfd93d0..2d36f6d 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -21,10 +21,10 @@ #include struct tcphdr { - __u16 source; - __u16 dest; - __u32 seq; - __u32 ack_seq; + __be16 source; + __be16 dest; + __be32 seq; + __be32 ack_seq; #if defined(__LITTLE_ENDIAN_BITFIELD) __u16 res1:4, doff:4, @@ -50,43 +50,9 @@ struct tcphdr { #else #error "Adjust your defines" #endif - __u16 window; - __u16 check; - __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 { - TCPF_ESTABLISHED = (1 << 1), - TCPF_SYN_SENT = (1 << 2), - TCPF_SYN_RECV = (1 << 3), - TCPF_FIN_WAIT1 = (1 << 4), - TCPF_FIN_WAIT2 = (1 << 5), - TCPF_TIME_WAIT = (1 << 6), - TCPF_CLOSE = (1 << 7), - TCPF_CLOSE_WAIT = (1 << 8), - TCPF_LAST_ACK = (1 << 9), - TCPF_LISTEN = (1 << 10), - TCPF_CLOSING = (1 << 11) + __be16 window; + __be16 check; + __be16 urg_ptr; }; /* @@ -96,7 +62,7 @@ enum { */ union tcp_word_hdr { struct tcphdr hdr; - __u32 words[5]; + __be32 words[5]; }; #define tcp_flag_word(tp) ( ((union tcp_word_hdr *)(tp))->words [3]) @@ -193,12 +159,18 @@ struct tcp_info #ifdef __KERNEL__ -#include #include -#include +#include #include +#include +#include /* This defines a selective acknowledgement block. */ +struct tcp_sack_block_wire { + __be32 start_seq; + __be32 end_seq; +}; + struct tcp_sack_block { __u32 start_seq; __u32 end_seq; @@ -236,15 +208,15 @@ 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 */ /* * Header prediction flags * 0x5?10 << 16 + snd_wnd in net byte order */ - __u32 pred_flags; + __be32 pred_flags; /* * RFC793 variables by their proper names. This means you can @@ -258,19 +230,6 @@ 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 { @@ -279,28 +238,30 @@ struct tcp_sock { struct iovec *iov; int memory; int len; +#ifdef CONFIG_NET_DMA + /* members for async copy */ + struct dma_chan *dma_chan; + int wakeup; + struct dma_pinned_list *pinned_list; + dma_cookie_t dma_cookie; +#endif } ucopy; __u32 snd_wl1; /* Sequence for window update */ __u32 snd_wnd; /* The window we expect to receive */ __u32 max_window; /* Maximal window ever seen from peer */ - __u32 pmtu_cookie; /* Last pmtu seen by socket */ __u32 mss_cache; /* Cached effective mss, not including SACKS */ - __u16 mss_cache_std; /* Like mss_cache, but without TSO */ - __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 xmit_size_goal; /* Goal for segmenting output packets */ + /* XXX Two bytes hole, try to pack */ - __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 +269,13 @@ 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; /* @@ -333,15 +288,8 @@ 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 */ - __u32 rcv_wnd; /* Current receiver window */ __u32 rcv_wup; /* rcv_nxt on last window update sent */ __u32 write_seq; /* Tail(+1) of data held in tcp send buffer */ @@ -352,8 +300,22 @@ 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. */ + struct tcp_sack_block recv_sack_cache[4]; + + /* from STCP, retrans queue hinting */ + struct sk_buff* lost_skb_hint; + + struct sk_buff *scoreboard_skb_hint; + struct sk_buff *retransmit_skb_hint; + struct sk_buff *forward_skb_hint; + struct sk_buff *fastpath_skb_hint; + + int fastpath_cnt_hint; + int lost_cnt_hint; + int retransmit_cnt_hint; + int forward_cnt_hint; + + __u16 advmss; /* Advertised MSS */ __u16 prior_ssthresh; /* ssthresh saved at recovery start */ __u32 lost_out; /* Lost packets */ __u32 sacked_out; /* SACK'd packets */ @@ -367,13 +329,12 @@ 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 */ + __u32 bytes_acked; /* Appropriate Byte Counting - RFC3465 */ unsigned int keepalive_time; /* time before keep alive takes place */ unsigned int keepalive_intvl; /* time interval between keep alive probes */ @@ -381,6 +342,8 @@ struct tcp_sock { unsigned long last_synq_overflow; + __u32 tso_deferred; + /* Receiver side RTT estimation */ struct { __u32 rtt; @@ -395,10 +358,11 @@ struct tcp_sock { __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)) +/* TCP-specific MTU probe information. */ + struct { + __u32 probe_seq_start; + __u32 probe_seq_end; + } mtu_probe; }; static inline struct tcp_sock *tcp_sk(const struct sock *sk) @@ -406,9 +370,18 @@ 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