|
. tcptw->tw_ts_recent = tmp_opt.rcv_tsval;
23. tcptw->tw_ts_recent_stamp = get_seconds();
24. }
25.
26.
27. inet_twsk_put(tw);
28. return TCP_TW_SUCCESS;
29. }
if (!paws_reject &&
(TCP_SKB_CB(skb)->seq == tcptw->tw_rcv_nxt &&
(TCP_SKB_CB(skb)->seq == TCP_SKB_CB(skb)->end_seq || th->rst))) {
/* In window segment, it may be only reset or bare ack. */
if (th->rst) {
/* This is TIME_WAIT assassination, in two flavors.
* Oh well... nobody has a sufficient solution to this
* protocol bug yet.
*/
if (sysctl_tcp_rfc1337 == 0) {
kill:
inet_twsk_deschedule(tw, &tcp_death_row);
inet_twsk_put(tw);
return TCP_TW_SUCCESS;
}
}
inet_twsk_schedule(tw, &tcp_death_row, TCP_TIMEWAIT_LEN,
TCP_TIMEWAIT_LEN);
if (tmp_opt.saw_tstamp) {
tcptw->tw_ts_recent = tmp_opt.rcv_tsval;
tcptw->tw_ts_recent_stamp = get_seconds();
}
inet_twsk_put(tw);
return TCP_TW_SUCCESS;
} 如果是RST包的话，并且系统配置sysctl_tcp_rfc1337（默认情况下为0，参见/proc/sys/net/ipv4/tcp_rfc1337）的值为0，论文网 这时会立即释放time_wait传输控制块，丢掉接收的RST包。
如果是ACK包，则会启动TIME_WAI
上一页 [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] ... 下一页 >>
| 