Revision 0d62c4cf slirp/tcp_timer.c
| b/slirp/tcp_timer.c | ||
|---|---|---|
| 102 | 102 |
; |
| 103 | 103 |
} |
| 104 | 104 |
tcp_iss += TCP_ISSINCR/PR_SLOWHZ; /* increment iss */ |
| 105 |
#ifdef TCP_COMPAT_42 |
|
| 106 |
if ((int)tcp_iss < 0) |
|
| 107 |
tcp_iss = 0; /* XXX */ |
|
| 108 |
#endif |
|
| 109 | 105 |
tcp_now++; /* for timestamps */ |
| 110 | 106 |
} |
| 111 | 107 |
|
| ... | ... | |
| 210 | 206 |
* retransmit times until then. |
| 211 | 207 |
*/ |
| 212 | 208 |
if (tp->t_rxtshift > TCP_MAXRXTSHIFT / 4) {
|
| 213 |
/* in_losing(tp->t_inpcb); */ |
|
| 214 | 209 |
tp->t_rttvar += (tp->t_srtt >> TCP_RTT_SHIFT); |
| 215 | 210 |
tp->t_srtt = 0; |
| 216 | 211 |
} |
| ... | ... | |
| 275 | 270 |
if (tp->t_state < TCPS_ESTABLISHED) |
| 276 | 271 |
goto dropit; |
| 277 | 272 |
|
| 278 |
/* if (tp->t_socket->so_options & SO_KEEPALIVE && */ |
|
| 279 | 273 |
if ((SO_OPTIONS) && tp->t_state <= TCPS_CLOSE_WAIT) {
|
| 280 | 274 |
if (tp->t_idle >= TCPTV_KEEP_IDLE + TCP_MAXIDLE) |
| 281 | 275 |
goto dropit; |
| ... | ... | |
| 292 | 286 |
* correspondent TCP to respond. |
| 293 | 287 |
*/ |
| 294 | 288 |
STAT(tcpstat.tcps_keepprobe++); |
| 295 |
#ifdef TCP_COMPAT_42 |
|
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/* |
|
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* The keepalive packet must have nonzero length |
|
| 298 |
* to get a 4.2 host to respond. |
|
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*/ |
|
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tcp_respond(tp, &tp->t_template, (struct mbuf *)NULL, |
|
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tp->rcv_nxt - 1, tp->snd_una - 1, 0); |
|
| 302 |
#else |
|
| 303 | 289 |
tcp_respond(tp, &tp->t_template, (struct mbuf *)NULL, |
| 304 | 290 |
tp->rcv_nxt, tp->snd_una - 1, 0); |
| 305 |
#endif |
|
| 306 | 291 |
tp->t_timer[TCPT_KEEP] = TCPTV_KEEPINTVL; |
| 307 | 292 |
} else |
| 308 | 293 |
tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_IDLE; |
| ... | ... | |
| 310 | 295 |
|
| 311 | 296 |
dropit: |
| 312 | 297 |
STAT(tcpstat.tcps_keepdrops++); |
| 313 |
tp = tcp_drop(tp, 0); /* ETIMEDOUT); */
|
|
| 298 |
tp = tcp_drop(tp, 0); |
|
| 314 | 299 |
break; |
| 315 | 300 |
} |
| 316 | 301 |
|
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