Linux 核心--16.Linux数据结构(14) struct sk_buff_head write_queue, receive_queue; struct proto *prot; struct wait_queue **sleep; __u32 daddr; __u32 saddr; /* Sending source */ __u32 rcv_saddr; /* Bound address */ unsigned short max_unacked; unsigned short window; __u32 lastwin_seq; /* sequence number when we last updated the window we offer */ __u32 high_seq; /* sequence number when we did current fast retransmit */ volatile unsigned long ato; /* ack timeout */ volatile unsigned long lrcvtime; /* jiffies at last data rcv */ volatile unsigned long idletime; /* jiffies at last rcv */ unsigned int bytes_rcv; /* * mss is min(mtu, max_window) */ unsigned short mtu; /* mss negotiated in the syn's */ volatile unsigned short mss; /* current eff. mss - can change */ volatile unsigned short user_mss; /* mss requested by user in ioctl */ volatile unsigned short max_window; unsigned long window_clamp; unsigned int ssthresh; unsigned short num; volatile unsigned short cong_window; volatile unsigned short cong_count; volatile unsigned short packets_out; volatile unsigned short shutdown; volatile unsigned long rtt; volatile unsigned long mdev; volatile unsigned long rto;
volatile unsigned short backoff; int err, err_soft; /* Soft holds errors that don't cause failure but are the cause
