Revision 511d2b14 slirp/tcp_input.c
| b/slirp/tcp_input.c | ||
|---|---|---|
| 121 | 121 |
int flags; |
| 122 | 122 |
|
| 123 | 123 |
/* |
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* Call with ti==0 after become established to
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* Call with ti==NULL after become established to
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|
| 125 | 125 |
* force pre-ESTABLISHED data up to user socket. |
| 126 | 126 |
*/ |
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if (ti == 0)
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if (ti == NULL)
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goto present; |
| 129 | 129 |
|
| 130 | 130 |
/* |
| ... | ... | |
| 230 | 230 |
* protocol specification dated September, 1981 very closely. |
| 231 | 231 |
*/ |
| 232 | 232 |
void |
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tcp_input(m, iphlen, inso) |
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register struct mbuf *m; |
|
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int iphlen; |
|
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struct socket *inso; |
|
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tcp_input(struct mbuf *m, int iphlen, struct socket *inso) |
|
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{
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struct ip save_ip, *ip; |
| 239 | 236 |
register struct tcpiphdr *ti; |
| 240 | 237 |
caddr_t optp = NULL; |
| 241 | 238 |
int optlen = 0; |
| 242 | 239 |
int len, tlen, off; |
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register struct tcpcb *tp = 0;
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register struct tcpcb *tp = NULL;
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| 244 | 241 |
register int tiflags; |
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struct socket *so = 0;
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struct socket *so = NULL;
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int todrop, acked, ourfinisacked, needoutput = 0; |
| 247 | 244 |
/* int dropsocket = 0; */ |
| 248 | 245 |
int iss = 0; |
| ... | ... | |
| 264 | 261 |
/* Re-set a few variables */ |
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tp = sototcpcb(so); |
| 266 | 263 |
m = so->so_m; |
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so->so_m = 0;
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so->so_m = NULL;
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|
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ti = so->so_ti; |
| 269 | 266 |
tiwin = ti->ti_win; |
| 270 | 267 |
tiflags = ti->ti_flags; |
| ... | ... | |
| 298 | 295 |
* Checksum extended TCP header and data. |
| 299 | 296 |
*/ |
| 300 | 297 |
tlen = ((struct ip *)ti)->ip_len; |
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tcpiphdr2qlink(ti)->next = tcpiphdr2qlink(ti)->prev = 0;
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memset(&ti->ti_i.ih_mbuf, 0 , sizeof(struct mbuf_ptr)); |
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tcpiphdr2qlink(ti)->next = tcpiphdr2qlink(ti)->prev = NULL;
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memset(&ti->ti_i.ih_mbuf, 0 , sizeof(struct mbuf_ptr));
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| 303 | 300 |
ti->ti_x1 = 0; |
| 304 | 301 |
ti->ti_len = htons((u_int16_t)tlen); |
| 305 | 302 |
len = sizeof(struct ip ) + tlen; |
| ... | ... | |
| 399 | 396 |
* the only flag set, then create a session, mark it |
| 400 | 397 |
* as if it was LISTENING, and continue... |
| 401 | 398 |
*/ |
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if (so == 0) {
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if (so == NULL) {
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| 403 | 400 |
if ((tiflags & (TH_SYN|TH_FIN|TH_RST|TH_URG|TH_ACK)) != TH_SYN) |
| 404 | 401 |
goto dropwithreset; |
| 405 | 402 |
|
| ... | ... | |
| 439 | 436 |
tp = sototcpcb(so); |
| 440 | 437 |
|
| 441 | 438 |
/* XXX Should never fail */ |
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if (tp == 0)
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if (tp == NULL)
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| 443 | 440 |
goto dropwithreset; |
| 444 | 441 |
if (tp->t_state == TCPS_CLOSED) |
| 445 | 442 |
goto drop; |
| ... | ... | |
| 1697 | 1694 |
*/ |
| 1698 | 1695 |
|
| 1699 | 1696 |
int |
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tcp_mss(tp, offer) |
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register struct tcpcb *tp; |
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u_int offer; |
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tcp_mss(struct tcpcb *tp, u_int offer) |
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{
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| 1704 | 1699 |
struct socket *so = tp->t_socket; |
| 1705 | 1700 |
int mss; |
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