Revision b5a87d26
| b/slirp/tcp_input.c | ||
|---|---|---|
| 316 | 316 |
m->m_data += sizeof(struct tcpiphdr)+off-sizeof(struct tcphdr); |
| 317 | 317 |
m->m_len -= sizeof(struct tcpiphdr)+off-sizeof(struct tcphdr); |
| 318 | 318 |
|
| 319 |
if (slirp->restricted) {
|
|
| 320 |
for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
|
| 321 |
if (ex_ptr->ex_fport == ti->ti_dport && |
|
| 322 |
ti->ti_dst.s_addr == ex_ptr->ex_addr.s_addr) {
|
|
| 323 |
break; |
|
| 324 |
} |
|
| 325 |
} |
|
| 326 |
if (!ex_ptr) |
|
| 327 |
goto drop; |
|
| 328 |
} |
|
| 329 | 319 |
/* |
| 330 | 320 |
* Locate pcb for segment. |
| 331 | 321 |
*/ |
| ... | ... | |
| 355 | 345 |
* as if it was LISTENING, and continue... |
| 356 | 346 |
*/ |
| 357 | 347 |
if (so == NULL) {
|
| 348 |
if (slirp->restricted) {
|
|
| 349 |
/* Any hostfwds will have an existing socket, so we only get here |
|
| 350 |
* for non-hostfwd connections. These should be dropped, unless it |
|
| 351 |
* happens to be a guestfwd. |
|
| 352 |
*/ |
|
| 353 |
for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
|
|
| 354 |
if (ex_ptr->ex_fport == ti->ti_dport && |
|
| 355 |
ti->ti_dst.s_addr == ex_ptr->ex_addr.s_addr) {
|
|
| 356 |
break; |
|
| 357 |
} |
|
| 358 |
} |
|
| 359 |
if (!ex_ptr) {
|
|
| 360 |
goto dropwithreset; |
|
| 361 |
} |
|
| 362 |
} |
|
| 363 |
|
|
| 358 | 364 |
if ((tiflags & (TH_SYN|TH_FIN|TH_RST|TH_URG|TH_ACK)) != TH_SYN) |
| 359 | 365 |
goto dropwithreset; |
| 360 | 366 |
|
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