Revision 31a60e22 slirp/tcp_timer.c
| b/slirp/tcp_timer.c | ||
|---|---|---|
| 41 | 41 |
int tcp_maxidle; |
| 42 | 42 |
int so_options = DO_KEEPALIVE; |
| 43 | 43 |
|
| 44 |
#ifdef LOG_ENABLED |
|
| 44 | 45 |
struct tcpstat tcpstat; /* tcp statistics */ |
| 46 |
#endif |
|
| 47 |
|
|
| 45 | 48 |
u_int32_t tcp_now; /* for RFC 1323 timestamps */ |
| 46 | 49 |
|
| 47 | 50 |
/* |
| ... | ... | |
| 62 | 65 |
(tp->t_flags & TF_DELACK)) {
|
| 63 | 66 |
tp->t_flags &= ~TF_DELACK; |
| 64 | 67 |
tp->t_flags |= TF_ACKNOW; |
| 65 |
tcpstat.tcps_delack++;
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|
| 68 |
STAT(tcpstat.tcps_delack++);
|
|
| 66 | 69 |
(void) tcp_output(tp); |
| 67 | 70 |
} |
| 68 | 71 |
} |
| ... | ... | |
| 192 | 195 |
* We tried our best, now the connection must die! |
| 193 | 196 |
*/ |
| 194 | 197 |
tp->t_rxtshift = TCP_MAXRXTSHIFT; |
| 195 |
tcpstat.tcps_timeoutdrop++;
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|
| 198 |
STAT(tcpstat.tcps_timeoutdrop++);
|
|
| 196 | 199 |
tp = tcp_drop(tp, tp->t_softerror); |
| 197 | 200 |
/* tp->t_softerror : ETIMEDOUT); */ /* XXX */ |
| 198 | 201 |
return (tp); /* XXX */ |
| ... | ... | |
| 204 | 207 |
*/ |
| 205 | 208 |
tp->t_rxtshift = 6; |
| 206 | 209 |
} |
| 207 |
tcpstat.tcps_rexmttimeo++;
|
|
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STAT(tcpstat.tcps_rexmttimeo++);
|
|
| 208 | 211 |
rexmt = TCP_REXMTVAL(tp) * tcp_backoff[tp->t_rxtshift]; |
| 209 | 212 |
TCPT_RANGESET(tp->t_rxtcur, rexmt, |
| 210 | 213 |
(short)tp->t_rttmin, TCPTV_REXMTMAX); /* XXX */ |
| ... | ... | |
| 267 | 270 |
* Force a byte to be output, if possible. |
| 268 | 271 |
*/ |
| 269 | 272 |
case TCPT_PERSIST: |
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tcpstat.tcps_persisttimeo++;
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|
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STAT(tcpstat.tcps_persisttimeo++);
|
|
| 271 | 274 |
tcp_setpersist(tp); |
| 272 | 275 |
tp->t_force = 1; |
| 273 | 276 |
(void) tcp_output(tp); |
| ... | ... | |
| 279 | 282 |
* or drop connection if idle for too long. |
| 280 | 283 |
*/ |
| 281 | 284 |
case TCPT_KEEP: |
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tcpstat.tcps_keeptimeo++;
|
|
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STAT(tcpstat.tcps_keeptimeo++);
|
|
| 283 | 286 |
if (tp->t_state < TCPS_ESTABLISHED) |
| 284 | 287 |
goto dropit; |
| 285 | 288 |
|
| ... | ... | |
| 299 | 302 |
* by the protocol spec, this requires the |
| 300 | 303 |
* correspondent TCP to respond. |
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*/ |
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tcpstat.tcps_keepprobe++;
|
|
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STAT(tcpstat.tcps_keepprobe++);
|
|
| 303 | 306 |
#ifdef TCP_COMPAT_42 |
| 304 | 307 |
/* |
| 305 | 308 |
* The keepalive packet must have nonzero length |
| ... | ... | |
| 317 | 320 |
break; |
| 318 | 321 |
|
| 319 | 322 |
dropit: |
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tcpstat.tcps_keepdrops++;
|
|
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STAT(tcpstat.tcps_keepdrops++);
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|
| 321 | 324 |
tp = tcp_drop(tp, 0); /* ETIMEDOUT); */ |
| 322 | 325 |
break; |
| 323 | 326 |
} |
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