Revision 460fec67 slirp/tcp_input.c
| b/slirp/tcp_input.c | ||
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#include <slirp.h> |
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#include "ip_icmp.h" |
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struct socket tcb; |
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#define TCPREXMTTHRESH 3 |
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struct socket *tcp_last_so = &tcb; |
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tcp_seq tcp_iss; /* tcp initial send seq # */ |
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#define TCP_PAWS_IDLE (24 * 24 * 60 * 60 * PR_SLOWHZ) |
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|
| ... | ... | |
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u_long tiwin; |
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int ret; |
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struct ex_list *ex_ptr; |
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Slirp *slirp; |
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DEBUG_CALL("tcp_input");
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DEBUG_ARGS((dfd," m = %8lx iphlen = %2d inso = %lx\n", |
| ... | ... | |
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*/ |
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if (m == NULL) {
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so = inso; |
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slirp = so->slirp; |
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/* Re-set a few variables */ |
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tp = sototcpcb(so); |
| ... | ... | |
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goto cont_conn; |
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} |
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slirp = m->slirp; |
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/* |
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* Get IP and TCP header together in first mbuf. |
| ... | ... | |
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m->m_data += sizeof(struct tcpiphdr)+off-sizeof(struct tcphdr); |
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m->m_len -= sizeof(struct tcpiphdr)+off-sizeof(struct tcphdr); |
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if (slirp_restrict) {
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for (ex_ptr = exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
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if (slirp->restricted) {
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for (ex_ptr = slirp->exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
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if (ex_ptr->ex_fport == ti->ti_dport && |
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ti->ti_dst.s_addr == ex_ptr->ex_addr.s_addr) {
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break; |
| ... | ... | |
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* Locate pcb for segment. |
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*/ |
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findso: |
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so = tcp_last_so; |
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so = slirp->tcp_last_so;
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if (so->so_fport != ti->ti_dport || |
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so->so_lport != ti->ti_sport || |
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so->so_laddr.s_addr != ti->ti_src.s_addr || |
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so->so_faddr.s_addr != ti->ti_dst.s_addr) {
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so = solookup(&tcb, ti->ti_src, ti->ti_sport, |
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so = solookup(&slirp->tcb, ti->ti_src, ti->ti_sport,
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ti->ti_dst, ti->ti_dport); |
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if (so) |
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tcp_last_so = so; |
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slirp->tcp_last_so = so;
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} |
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|
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/* |
| ... | ... | |
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if ((tiflags & (TH_SYN|TH_FIN|TH_RST|TH_URG|TH_ACK)) != TH_SYN) |
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goto dropwithreset; |
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if ((so = socreate()) == NULL) |
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if ((so = socreate(slirp)) == NULL)
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goto dropwithreset; |
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if (tcp_attach(so) < 0) {
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free(so); /* Not sofree (if it failed, it's not insqued) */ |
| ... | ... | |
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* If this is destined for the control address, then flag to |
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* tcp_ctl once connected, otherwise connect |
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*/ |
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if ((so->so_faddr.s_addr & vnetwork_mask.s_addr) == |
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vnetwork_addr.s_addr) {
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if (so->so_faddr.s_addr != vhost_addr.s_addr && |
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so->so_faddr.s_addr != vnameserver_addr.s_addr) {
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if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) ==
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slirp->vnetwork_addr.s_addr) {
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if (so->so_faddr.s_addr != slirp->vhost_addr.s_addr &&
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so->so_faddr.s_addr != slirp->vnameserver_addr.s_addr) {
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/* May be an add exec */ |
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for(ex_ptr = exec_list; ex_ptr; ex_ptr = ex_ptr->ex_next) {
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for (ex_ptr = slirp->exec_list; ex_ptr; |
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ex_ptr = ex_ptr->ex_next) {
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if(ex_ptr->ex_fport == so->so_fport && |
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so->so_faddr.s_addr == ex_ptr->ex_addr.s_addr) {
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so->so_state |= SS_CTL; |
| ... | ... | |
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if (iss) |
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tp->iss = iss; |
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else |
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tp->iss = tcp_iss; |
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tcp_iss += TCP_ISSINCR/2; |
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tp->iss = slirp->tcp_iss;
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slirp->tcp_iss += TCP_ISSINCR/2;
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tp->irs = ti->ti_seq; |
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tcp_sendseqinit(tp); |
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tcp_rcvseqinit(tp); |
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