diff options
Diffstat (limited to 'slirp')
| -rw-r--r-- | slirp/tcp_subr.c | 140 |
1 files changed, 72 insertions, 68 deletions
diff --git a/slirp/tcp_subr.c b/slirp/tcp_subr.c index 1542e43619..317dc07a06 100644 --- a/slirp/tcp_subr.c +++ b/slirp/tcp_subr.c @@ -384,83 +384,87 @@ int tcp_fconnect(struct socket *so) * the time it gets to accept(), so... We simply accept * here and SYN the local-host. */ -void -tcp_connect(struct socket *inso) +void tcp_connect(struct socket *inso) { - Slirp *slirp = inso->slirp; - struct socket *so; - struct sockaddr_in addr; - socklen_t addrlen = sizeof(struct sockaddr_in); - struct tcpcb *tp; - int s, opt; + Slirp *slirp = inso->slirp; + struct socket *so; + struct sockaddr_in addr; + socklen_t addrlen = sizeof(struct sockaddr_in); + struct tcpcb *tp; + int s, opt; - DEBUG_CALL("tcp_connect"); - DEBUG_ARG("inso = %lx", (long)inso); + DEBUG_CALL("tcp_connect"); + DEBUG_ARG("inso = %lx", (long)inso); - /* - * If it's an SS_ACCEPTONCE socket, no need to socreate() - * another socket, just use the accept() socket. - */ - if (inso->so_state & SS_FACCEPTONCE) { - /* FACCEPTONCE already have a tcpcb */ - so = inso; - } else { - if ((so = socreate(slirp)) == NULL) { - /* If it failed, get rid of the pending connection */ - closesocket(accept(inso->s,(struct sockaddr *)&addr,&addrlen)); - return; - } - if (tcp_attach(so) < 0) { - free(so); /* NOT sofree */ - return; - } - so->so_laddr = inso->so_laddr; - so->so_lport = inso->so_lport; - } + /* + * If it's an SS_ACCEPTONCE socket, no need to socreate() + * another socket, just use the accept() socket. + */ + if (inso->so_state & SS_FACCEPTONCE) { + /* FACCEPTONCE already have a tcpcb */ + so = inso; + } else { + so = socreate(slirp); + if (so == NULL) { + /* If it failed, get rid of the pending connection */ + closesocket(accept(inso->s, (struct sockaddr *)&addr, &addrlen)); + return; + } + if (tcp_attach(so) < 0) { + free(so); /* NOT sofree */ + return; + } + so->so_laddr = inso->so_laddr; + so->so_lport = inso->so_lport; + } - (void) tcp_mss(sototcpcb(so), 0); + tcp_mss(sototcpcb(so), 0); - if ((s = accept(inso->s,(struct sockaddr *)&addr,&addrlen)) < 0) { - tcp_close(sototcpcb(so)); /* This will sofree() as well */ - return; - } - socket_set_nonblock(s); - opt = 1; - setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)); - opt = 1; - setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int)); - opt = 1; - setsockopt(s,IPPROTO_TCP,TCP_NODELAY,(char *)&opt,sizeof(int)); - - so->so_fport = addr.sin_port; - so->so_faddr = addr.sin_addr; - /* Translate connections from localhost to the real hostname */ - if (so->so_faddr.s_addr == 0 || - (so->so_faddr.s_addr & loopback_mask) == - (loopback_addr.s_addr & loopback_mask)) { - so->so_faddr = slirp->vhost_addr; - } + s = accept(inso->s, (struct sockaddr *)&addr, &addrlen); + if (s < 0) { + tcp_close(sototcpcb(so)); /* This will sofree() as well */ + return; + } + socket_set_nonblock(s); + opt = 1; + setsockopt(s, SOL_SOCKET, SO_REUSEADDR, (char *)&opt, sizeof(int)); + opt = 1; + setsockopt(s, SOL_SOCKET, SO_OOBINLINE, (char *)&opt, sizeof(int)); + opt = 1; + setsockopt(s, IPPROTO_TCP, TCP_NODELAY, (char *)&opt, sizeof(int)); + + so->so_fport = addr.sin_port; + so->so_faddr = addr.sin_addr; + /* Translate connections from localhost to the real hostname */ + if (so->so_faddr.s_addr == 0 || + (so->so_faddr.s_addr & loopback_mask) == + (loopback_addr.s_addr & loopback_mask)) { + so->so_faddr = slirp->vhost_addr; + } - /* Close the accept() socket, set right state */ - if (inso->so_state & SS_FACCEPTONCE) { - closesocket(so->s); /* If we only accept once, close the accept() socket */ - so->so_state = SS_NOFDREF; /* Don't select it yet, even though we have an FD */ - /* if it's not FACCEPTONCE, it's already NOFDREF */ - } - so->s = s; - so->so_state |= SS_INCOMING; + /* Close the accept() socket, set right state */ + if (inso->so_state & SS_FACCEPTONCE) { + /* If we only accept once, close the accept() socket */ + closesocket(so->s); + + /* Don't select it yet, even though we have an FD */ + /* if it's not FACCEPTONCE, it's already NOFDREF */ + so->so_state = SS_NOFDREF; + } + so->s = s; + so->so_state |= SS_INCOMING; - so->so_iptos = tcp_tos(so); - tp = sototcpcb(so); + so->so_iptos = tcp_tos(so); + tp = sototcpcb(so); - tcp_template(tp); + tcp_template(tp); - tp->t_state = TCPS_SYN_SENT; - tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT; - tp->iss = slirp->tcp_iss; - slirp->tcp_iss += TCP_ISSINCR/2; - tcp_sendseqinit(tp); - tcp_output(tp); + tp->t_state = TCPS_SYN_SENT; + tp->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT; + tp->iss = slirp->tcp_iss; + slirp->tcp_iss += TCP_ISSINCR/2; + tcp_sendseqinit(tp); + tcp_output(tp); } /* |