* terms and conditions of the copyright.
*/
-#define WANT_SYS_IOCTL_H
+#include "qemu/osdep.h"
+#include "qemu-common.h"
#include <slirp.h>
#include "ip_icmp.h"
#ifdef __sun__
#include <sys/filio.h>
#endif
-#include "qemu-common.h"
static void sofcantrcvmore(struct socket *so);
static void sofcantsendmore(struct socket *so);
-#if 0
-static void
-so_init()
+struct socket *solookup(struct socket **last, struct socket *head,
+ struct sockaddr_storage *lhost, struct sockaddr_storage *fhost)
{
- /* Nothing yet */
-}
-#endif
-
-struct socket *
-solookup(head, laddr, lport, faddr, fport)
- struct socket *head;
- struct in_addr laddr;
- u_int lport;
- struct in_addr faddr;
- u_int fport;
-{
- struct socket *so;
-
- for (so = head->so_next; so != head; so = so->so_next) {
- if (so->so_lport == lport &&
- so->so_laddr.s_addr == laddr.s_addr &&
- so->so_faddr.s_addr == faddr.s_addr &&
- so->so_fport == fport)
- break;
- }
-
- if (so == head)
- return (struct socket *)NULL;
- return so;
+ struct socket *so = *last;
+
+ /* Optimisation */
+ if (so != head && sockaddr_equal(&(so->lhost.ss), lhost)
+ && (!fhost || sockaddr_equal(&so->fhost.ss, fhost))) {
+ return so;
+ }
+
+ for (so = head->so_next; so != head; so = so->so_next) {
+ if (sockaddr_equal(&(so->lhost.ss), lhost)
+ && (!fhost || sockaddr_equal(&so->fhost.ss, fhost))) {
+ *last = so;
+ return so;
+ }
+ }
+ return (struct socket *)NULL;
}
/*
* insque() it into the correct linked-list
*/
struct socket *
-socreate()
+socreate(Slirp *slirp)
{
struct socket *so;
memset(so, 0, sizeof(struct socket));
so->so_state = SS_NOFDREF;
so->s = -1;
+ so->slirp = slirp;
+ so->pollfds_idx = -1;
}
return(so);
}
* remque and free a socket, clobber cache
*/
void
-sofree(so)
- struct socket *so;
+sofree(struct socket *so)
{
+ Slirp *slirp = so->slirp;
+
if (so->so_emu==EMU_RSH && so->extra) {
sofree(so->extra);
so->extra=NULL;
}
- if (so == tcp_last_so)
- tcp_last_so = &tcb;
- else if (so == udp_last_so)
- udp_last_so = &udb;
-
+ if (so == slirp->tcp_last_so) {
+ slirp->tcp_last_so = &slirp->tcb;
+ } else if (so == slirp->udp_last_so) {
+ slirp->udp_last_so = &slirp->udb;
+ } else if (so == slirp->icmp_last_so) {
+ slirp->icmp_last_so = &slirp->icmp;
+ }
m_free(so->so_m);
if(so->so_next && so->so_prev)
free(so);
}
-/*
- * Read from so's socket into sb_snd, updating all relevant sbuf fields
- * NOTE: This will only be called if it is select()ed for reading, so
- * a read() of 0 (or less) means it's disconnected
- */
-int
-soread(so)
- struct socket *so;
+size_t sopreprbuf(struct socket *so, struct iovec *iov, int *np)
{
- int n, nn, lss, total;
+ int n, lss, total;
struct sbuf *sb = &so->so_snd;
int len = sb->sb_datalen - sb->sb_cc;
- struct iovec iov[2];
int mss = so->so_tcpcb->t_maxseg;
- DEBUG_CALL("soread");
- DEBUG_ARG("so = %lx", (long )so);
-
- /*
- * No need to check if there's enough room to read.
- * soread wouldn't have been called if there weren't
- */
+ DEBUG_CALL("sopreprbuf");
+ DEBUG_ARG("so = %p", so);
- len = sb->sb_datalen - sb->sb_cc;
+ if (len <= 0)
+ return 0;
iov[0].iov_base = sb->sb_wptr;
iov[1].iov_base = NULL;
n = 1;
}
}
+ if (np)
+ *np = n;
+
+ return iov[0].iov_len + (n - 1) * iov[1].iov_len;
+}
+
+/*
+ * Read from so's socket into sb_snd, updating all relevant sbuf fields
+ * NOTE: This will only be called if it is select()ed for reading, so
+ * a read() of 0 (or less) means it's disconnected
+ */
+int
+soread(struct socket *so)
+{
+ int n, nn;
+ struct sbuf *sb = &so->so_snd;
+ struct iovec iov[2];
+
+ DEBUG_CALL("soread");
+ DEBUG_ARG("so = %p", so);
+
+ /*
+ * No need to check if there's enough room to read.
+ * soread wouldn't have been called if there weren't
+ */
+ sopreprbuf(so, iov, &n);
#ifdef HAVE_READV
nn = readv(so->s, (struct iovec *)iov, n);
DEBUG_MISC((dfd, " ... read nn = %d bytes\n", nn));
#else
- nn = recv(so->s, iov[0].iov_base, iov[0].iov_len,0);
+ nn = qemu_recv(so->s, iov[0].iov_base, iov[0].iov_len,0);
#endif
if (nn <= 0) {
if (nn < 0 && (errno == EINTR || errno == EAGAIN))
return 0;
else {
+ int err;
+ socklen_t slen = sizeof err;
+
+ err = errno;
+ if (nn == 0) {
+ getsockopt(so->s, SOL_SOCKET, SO_ERROR,
+ &err, &slen);
+ }
+
DEBUG_MISC((dfd, " --- soread() disconnected, nn = %d, errno = %d-%s\n", nn, errno,strerror(errno)));
sofcantrcvmore(so);
- tcp_sockclosed(sototcpcb(so));
+
+ if (err == ECONNRESET || err == ECONNREFUSED
+ || err == ENOTCONN || err == EPIPE) {
+ tcp_drop(sototcpcb(so), err);
+ } else {
+ tcp_sockclosed(sototcpcb(so));
+ }
return -1;
}
}
* We don't test for <= 0 this time, because there legitimately
* might not be any more data (since the socket is non-blocking),
* a close will be detected on next iteration.
- * A return of -1 wont (shouldn't) happen, since it didn't happen above
+ * A return of -1 won't (shouldn't) happen, since it didn't happen above
*/
if (n == 2 && nn == iov[0].iov_len) {
int ret;
- ret = recv(so->s, iov[1].iov_base, iov[1].iov_len,0);
+ ret = qemu_recv(so->s, iov[1].iov_base, iov[1].iov_len,0);
if (ret > 0)
nn += ret;
}
return nn;
}
+int soreadbuf(struct socket *so, const char *buf, int size)
+{
+ int n, nn, copy = size;
+ struct sbuf *sb = &so->so_snd;
+ struct iovec iov[2];
+
+ DEBUG_CALL("soreadbuf");
+ DEBUG_ARG("so = %p", so);
+
+ /*
+ * No need to check if there's enough room to read.
+ * soread wouldn't have been called if there weren't
+ */
+ if (sopreprbuf(so, iov, &n) < size)
+ goto err;
+
+ nn = MIN(iov[0].iov_len, copy);
+ memcpy(iov[0].iov_base, buf, nn);
+
+ copy -= nn;
+ buf += nn;
+
+ if (copy == 0)
+ goto done;
+
+ memcpy(iov[1].iov_base, buf, copy);
+
+done:
+ /* Update fields */
+ sb->sb_cc += size;
+ sb->sb_wptr += size;
+ if (sb->sb_wptr >= (sb->sb_data + sb->sb_datalen))
+ sb->sb_wptr -= sb->sb_datalen;
+ return size;
+err:
+
+ sofcantrcvmore(so);
+ tcp_sockclosed(sototcpcb(so));
+ fprintf(stderr, "soreadbuf buffer to small");
+ return -1;
+}
+
/*
* Get urgent data
*
* so when OOB data arrives, we soread() it and everything
* in the send buffer is sent as urgent data
*/
-void
-sorecvoob(so)
- struct socket *so;
+int
+sorecvoob(struct socket *so)
{
struct tcpcb *tp = sototcpcb(so);
+ int ret;
DEBUG_CALL("sorecvoob");
- DEBUG_ARG("so = %lx", (long)so);
+ DEBUG_ARG("so = %p", so);
/*
* We take a guess at how much urgent data has arrived.
* urgent data, or the read() doesn't return all the
* urgent data.
*/
- soread(so);
- tp->snd_up = tp->snd_una + so->so_snd.sb_cc;
- tp->t_force = 1;
- tcp_output(tp);
- tp->t_force = 0;
+ ret = soread(so);
+ if (ret > 0) {
+ tp->snd_up = tp->snd_una + so->so_snd.sb_cc;
+ tp->t_force = 1;
+ tcp_output(tp);
+ tp->t_force = 0;
+ }
+
+ return ret;
}
/*
* There's a lot duplicated code here, but...
*/
int
-sosendoob(so)
- struct socket *so;
+sosendoob(struct socket *so)
{
struct sbuf *sb = &so->so_rcv;
char buff[2048]; /* XXX Shouldn't be sending more oob data than this */
int n, len;
DEBUG_CALL("sosendoob");
- DEBUG_ARG("so = %lx", (long)so);
+ DEBUG_ARG("so = %p", so);
DEBUG_ARG("sb->sb_cc = %d", sb->sb_cc);
if (so->so_urgc > 2048)
if (sb->sb_rptr < sb->sb_wptr) {
/* We can send it directly */
- n = send(so->s, sb->sb_rptr, so->so_urgc, (MSG_OOB)); /* |MSG_DONTWAIT)); */
+ n = slirp_send(so, sb->sb_rptr, so->so_urgc, (MSG_OOB)); /* |MSG_DONTWAIT)); */
so->so_urgc -= n;
DEBUG_MISC((dfd, " --- sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc));
so->so_urgc -= n;
len += n;
}
- n = send(so->s, buff, len, (MSG_OOB)); /* |MSG_DONTWAIT)); */
+ n = slirp_send(so, buff, len, (MSG_OOB)); /* |MSG_DONTWAIT)); */
#ifdef DEBUG
if (n != len)
DEBUG_ERROR((dfd, "Didn't send all data urgently XXXXX\n"));
* updating all sbuf field as necessary
*/
int
-sowrite(so)
- struct socket *so;
+sowrite(struct socket *so)
{
int n,nn;
struct sbuf *sb = &so->so_rcv;
struct iovec iov[2];
DEBUG_CALL("sowrite");
- DEBUG_ARG("so = %lx", (long)so);
+ DEBUG_ARG("so = %p", so);
if (so->so_urgc) {
sosendoob(so);
* sowrite wouldn't have been called otherwise
*/
- len = sb->sb_cc;
-
iov[0].iov_base = sb->sb_rptr;
iov[1].iov_base = NULL;
iov[1].iov_len = 0;
DEBUG_MISC((dfd, " ... wrote nn = %d bytes\n", nn));
#else
- nn = send(so->s, iov[0].iov_base, iov[0].iov_len,0);
+ nn = slirp_send(so, iov[0].iov_base, iov[0].iov_len,0);
#endif
/* This should never happen, but people tell me it does *shrug* */
if (nn < 0 && (errno == EAGAIN || errno == EINTR))
#ifndef HAVE_READV
if (n == 2 && nn == iov[0].iov_len) {
int ret;
- ret = send(so->s, iov[1].iov_base, iov[1].iov_len,0);
+ ret = slirp_send(so, iov[1].iov_base, iov[1].iov_len,0);
if (ret > 0)
nn += ret;
}
* recvfrom() a UDP socket
*/
void
-sorecvfrom(so)
- struct socket *so;
+sorecvfrom(struct socket *so)
{
- struct sockaddr_in addr;
- socklen_t addrlen = sizeof(struct sockaddr_in);
+ struct sockaddr_storage addr;
+ struct sockaddr_storage saddr, daddr;
+ socklen_t addrlen = sizeof(struct sockaddr_storage);
DEBUG_CALL("sorecvfrom");
- DEBUG_ARG("so = %lx", (long)so);
+ DEBUG_ARG("so = %p", so);
if (so->so_type == IPPROTO_ICMP) { /* This is a "ping" reply */
char buff[256];
DEBUG_MISC((dfd," udp icmp rx errno = %d-%s\n",
errno,strerror(errno)));
- icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno));
+ icmp_send_error(so->so_m, ICMP_UNREACH, code, 0, strerror(errno));
} else {
icmp_reflect(so->so_m);
- so->so_m = 0; /* Don't m_free() it again! */
+ so->so_m = NULL; /* Don't m_free() it again! */
}
/* No need for this socket anymore, udp_detach it */
udp_detach(so);
} else { /* A "normal" UDP packet */
struct mbuf *m;
- int len, n;
+ int len;
+#ifdef _WIN32
+ unsigned long n;
+#else
+ int n;
+#endif
- if (!(m = m_get())) return;
- m->m_data += IF_MAXLINKHDR;
+ m = m_get(so->slirp);
+ if (!m) {
+ return;
+ }
+ switch (so->so_ffamily) {
+ case AF_INET:
+ m->m_data += IF_MAXLINKHDR + sizeof(struct udpiphdr);
+ break;
+ case AF_INET6:
+ m->m_data += IF_MAXLINKHDR + sizeof(struct ip6)
+ + sizeof(struct udphdr);
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
/*
* XXX Shouldn't FIONREAD packets destined for port 53,
DEBUG_MISC((dfd, " did recvfrom %d, errno = %d-%s\n",
m->m_len, errno,strerror(errno)));
if(m->m_len<0) {
- u_char code=ICMP_UNREACH_PORT;
-
- if(errno == EHOSTUNREACH) code=ICMP_UNREACH_HOST;
- else if(errno == ENETUNREACH) code=ICMP_UNREACH_NET;
-
- DEBUG_MISC((dfd," rx error, tx icmp ICMP_UNREACH:%i\n", code));
- icmp_error(so->so_m, ICMP_UNREACH,code, 0,strerror(errno));
+ /* Report error as ICMP */
+ switch (so->so_lfamily) {
+ uint8_t code;
+ case AF_INET:
+ code = ICMP_UNREACH_PORT;
+
+ if (errno == EHOSTUNREACH) {
+ code = ICMP_UNREACH_HOST;
+ } else if (errno == ENETUNREACH) {
+ code = ICMP_UNREACH_NET;
+ }
+
+ DEBUG_MISC((dfd, " rx error, tx icmp ICMP_UNREACH:%i\n", code));
+ icmp_send_error(so->so_m, ICMP_UNREACH, code, 0, strerror(errno));
+ break;
+ case AF_INET6:
+ code = ICMP6_UNREACH_PORT;
+
+ if (errno == EHOSTUNREACH) {
+ code = ICMP6_UNREACH_ADDRESS;
+ } else if (errno == ENETUNREACH) {
+ code = ICMP6_UNREACH_NO_ROUTE;
+ }
+
+ DEBUG_MISC((dfd, " rx error, tx icmp6 ICMP_UNREACH:%i\n", code));
+ icmp6_send_error(so->so_m, ICMP6_UNREACH, code);
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
m_free(m);
} else {
/*
so->so_expire = curtime + SO_EXPIRE;
}
- /* if (m->m_len == len) {
- * m_inc(m, MINCSIZE);
- * m->m_len = 0;
- * }
- */
-
/*
* If this packet was destined for CTL_ADDR,
- * make it look like that's where it came from, done by udp_output
+ * make it look like that's where it came from
*/
- udp_output(so, m, &addr);
+ saddr = addr;
+ sotranslate_in(so, &saddr);
+ daddr = so->lhost.ss;
+
+ switch (so->so_ffamily) {
+ case AF_INET:
+ udp_output(so, m, (struct sockaddr_in *) &saddr,
+ (struct sockaddr_in *) &daddr,
+ so->so_iptos);
+ break;
+ case AF_INET6:
+ udp6_output(so, m, (struct sockaddr_in6 *) &saddr,
+ (struct sockaddr_in6 *) &daddr);
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
} /* rx error */
} /* if ping packet */
}
* sendto() a socket
*/
int
-sosendto(so, m)
- struct socket *so;
- struct mbuf *m;
+sosendto(struct socket *so, struct mbuf *m)
{
int ret;
- struct sockaddr_in addr;
+ struct sockaddr_storage addr;
DEBUG_CALL("sosendto");
- DEBUG_ARG("so = %lx", (long)so);
- DEBUG_ARG("m = %lx", (long)m);
-
- addr.sin_family = AF_INET;
- if ((so->so_faddr.s_addr & htonl(0xffffff00)) == special_addr.s_addr) {
- /* It's an alias */
- switch(ntohl(so->so_faddr.s_addr) & 0xff) {
- case CTL_DNS:
- addr.sin_addr = dns_addr;
- break;
- case CTL_ALIAS:
- default:
- addr.sin_addr = loopback_addr;
- break;
- }
- } else
- addr.sin_addr = so->so_faddr;
- addr.sin_port = so->so_fport;
+ DEBUG_ARG("so = %p", so);
+ DEBUG_ARG("m = %p", m);
- DEBUG_MISC((dfd, " sendto()ing, addr.sin_port=%d, addr.sin_addr.s_addr=%.16s\n", ntohs(addr.sin_port), inet_ntoa(addr.sin_addr)));
+ addr = so->fhost.ss;
+ DEBUG_CALL(" sendto()ing)");
+ sotranslate_out(so, &addr);
/* Don't care what port we get */
ret = sendto(so->s, m->m_data, m->m_len, 0,
- (struct sockaddr *)&addr, sizeof (struct sockaddr));
+ (struct sockaddr *)&addr, sockaddr_size(&addr));
if (ret < 0)
return -1;
*/
if (so->so_expire)
so->so_expire = curtime + SO_EXPIRE;
- so->so_state = SS_ISFCONNECTED; /* So that it gets select()ed */
+ so->so_state &= SS_PERSISTENT_MASK;
+ so->so_state |= SS_ISFCONNECTED; /* So that it gets select()ed */
return 0;
}
/*
- * XXX This should really be tcp_listen
+ * Listen for incoming TCP connections
*/
struct socket *
-solisten(port, laddr, lport, flags)
- u_int port;
- u_int32_t laddr;
- u_int lport;
- int flags;
+tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
+ u_int lport, int flags)
{
struct sockaddr_in addr;
struct socket *so;
int s, opt = 1;
socklen_t addrlen = sizeof(addr);
+ memset(&addr, 0, addrlen);
- DEBUG_CALL("solisten");
- DEBUG_ARG("port = %d", port);
+ DEBUG_CALL("tcp_listen");
+ DEBUG_ARG("haddr = %x", haddr);
+ DEBUG_ARG("hport = %d", hport);
DEBUG_ARG("laddr = %x", laddr);
DEBUG_ARG("lport = %d", lport);
DEBUG_ARG("flags = %x", flags);
- if ((so = socreate()) == NULL) {
- /* free(so); Not sofree() ??? free(NULL) == NOP */
+ so = socreate(slirp);
+ if (!so) {
return NULL;
}
free(so);
return NULL;
}
- insque(so,&tcb);
+ insque(so, &slirp->tcb);
/*
* SS_FACCEPTONCE sockets must time out.
if (flags & SS_FACCEPTONCE)
so->so_tcpcb->t_timer[TCPT_KEEP] = TCPTV_KEEP_INIT*2;
- so->so_state = (SS_FACCEPTCONN|flags);
+ so->so_state &= SS_PERSISTENT_MASK;
+ so->so_state |= (SS_FACCEPTCONN | flags);
+ so->so_lfamily = AF_INET;
so->so_lport = lport; /* Kept in network format */
so->so_laddr.s_addr = laddr; /* Ditto */
addr.sin_family = AF_INET;
- addr.sin_addr.s_addr = INADDR_ANY;
- addr.sin_port = port;
+ addr.sin_addr.s_addr = haddr;
+ addr.sin_port = hport;
- if (((s = socket(AF_INET,SOCK_STREAM,0)) < 0) ||
- (setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)) < 0) ||
+ if (((s = qemu_socket(AF_INET,SOCK_STREAM,0)) < 0) ||
+ (socket_set_fast_reuse(s) < 0) ||
(bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
(listen(s,1) < 0)) {
int tmperrno = errno; /* Don't clobber the real reason we failed */
#endif
return NULL;
}
- setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int));
+ qemu_setsockopt(s, SOL_SOCKET, SO_OOBINLINE, &opt, sizeof(int));
getsockname(s,(struct sockaddr *)&addr,&addrlen);
+ so->so_ffamily = AF_INET;
so->so_fport = addr.sin_port;
if (addr.sin_addr.s_addr == 0 || addr.sin_addr.s_addr == loopback_addr.s_addr)
- so->so_faddr = alias_addr;
+ so->so_faddr = slirp->vhost_addr;
else
so->so_faddr = addr.sin_addr;
return so;
}
-#if 0
-/*
- * Data is available in so_rcv
- * Just write() the data to the socket
- * XXX not yet...
- */
-static void
-sorwakeup(so)
- struct socket *so;
-{
-/* sowrite(so); */
-/* FD_CLR(so->s,&writefds); */
-}
-
-/*
- * Data has been freed in so_snd
- * We have room for a read() if we want to
- * For now, don't read, it'll be done in the main loop
- */
-static void
-sowwakeup(so)
- struct socket *so;
-{
- /* Nothing, yet */
-}
-#endif
-
/*
* Various session state calls
* XXX Should be #define's
* times each when only 1 was needed
*/
void
-soisfconnecting(so)
- register struct socket *so;
+soisfconnecting(struct socket *so)
{
so->so_state &= ~(SS_NOFDREF|SS_ISFCONNECTED|SS_FCANTRCVMORE|
SS_FCANTSENDMORE|SS_FWDRAIN);
}
void
-soisfconnected(so)
- register struct socket *so;
+soisfconnected(struct socket *so)
{
so->so_state &= ~(SS_ISFCONNECTING|SS_FWDRAIN|SS_NOFDREF);
so->so_state |= SS_ISFCONNECTED; /* Clobber other states */
{
if ((so->so_state & SS_NOFDREF) == 0) {
shutdown(so->s,0);
- if(global_writefds) {
- FD_CLR(so->s,global_writefds);
- }
}
so->so_state &= ~(SS_ISFCONNECTING);
- if (so->so_state & SS_FCANTSENDMORE)
- so->so_state = SS_NOFDREF; /* Don't select it */ /* XXX close() here as well? */
- else
+ if (so->so_state & SS_FCANTSENDMORE) {
+ so->so_state &= SS_PERSISTENT_MASK;
+ so->so_state |= SS_NOFDREF; /* Don't select it */
+ } else {
so->so_state |= SS_FCANTRCVMORE;
+ }
}
static void
{
if ((so->so_state & SS_NOFDREF) == 0) {
shutdown(so->s,1); /* send FIN to fhost */
- if (global_readfds) {
- FD_CLR(so->s,global_readfds);
- }
- if (global_xfds) {
- FD_CLR(so->s,global_xfds);
- }
}
so->so_state &= ~(SS_ISFCONNECTING);
- if (so->so_state & SS_FCANTRCVMORE)
- so->so_state = SS_NOFDREF; /* as above */
- else
+ if (so->so_state & SS_FCANTRCVMORE) {
+ so->so_state &= SS_PERSISTENT_MASK;
+ so->so_state |= SS_NOFDREF; /* as above */
+ } else {
so->so_state |= SS_FCANTSENDMORE;
-}
-
-void
-soisfdisconnected(so)
- struct socket *so;
-{
-/* so->so_state &= ~(SS_ISFCONNECTING|SS_ISFCONNECTED); */
-/* close(so->s); */
-/* so->so_state = SS_ISFDISCONNECTED; */
- /*
- * XXX Do nothing ... ?
- */
+ }
}
/*
* Set CANTSENDMORE once all data has been write()n
*/
void
-sofwdrain(so)
- struct socket *so;
+sofwdrain(struct socket *so)
{
if (so->so_rcv.sb_cc)
so->so_state |= SS_FWDRAIN;
else
sofcantsendmore(so);
}
+
+/*
+ * Translate addr in host addr when it is a virtual address
+ */
+void sotranslate_out(struct socket *so, struct sockaddr_storage *addr)
+{
+ Slirp *slirp = so->slirp;
+ struct sockaddr_in *sin = (struct sockaddr_in *)addr;
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;
+
+ switch (addr->ss_family) {
+ case AF_INET:
+ if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) ==
+ slirp->vnetwork_addr.s_addr) {
+ /* It's an alias */
+ if (so->so_faddr.s_addr == slirp->vnameserver_addr.s_addr) {
+ if (get_dns_addr(&sin->sin_addr) < 0) {
+ sin->sin_addr = loopback_addr;
+ }
+ } else {
+ sin->sin_addr = loopback_addr;
+ }
+ }
+
+ DEBUG_MISC((dfd, " addr.sin_port=%d, "
+ "addr.sin_addr.s_addr=%.16s\n",
+ ntohs(sin->sin_port), inet_ntoa(sin->sin_addr)));
+ break;
+
+ case AF_INET6:
+ if (in6_equal_net(&so->so_faddr6, &slirp->vprefix_addr6,
+ slirp->vprefix_len)) {
+ if (in6_equal(&so->so_faddr6, &slirp->vnameserver_addr6)) {
+ /*if (get_dns_addr(&addr) < 0) {*/ /* TODO */
+ sin6->sin6_addr = in6addr_loopback;
+ /*}*/
+ } else {
+ sin6->sin6_addr = in6addr_loopback;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+void sotranslate_in(struct socket *so, struct sockaddr_storage *addr)
+{
+ Slirp *slirp = so->slirp;
+ struct sockaddr_in *sin = (struct sockaddr_in *)addr;
+ struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)addr;
+
+ switch (addr->ss_family) {
+ case AF_INET:
+ if ((so->so_faddr.s_addr & slirp->vnetwork_mask.s_addr) ==
+ slirp->vnetwork_addr.s_addr) {
+ uint32_t inv_mask = ~slirp->vnetwork_mask.s_addr;
+
+ if ((so->so_faddr.s_addr & inv_mask) == inv_mask) {
+ sin->sin_addr = slirp->vhost_addr;
+ } else if (sin->sin_addr.s_addr == loopback_addr.s_addr ||
+ so->so_faddr.s_addr != slirp->vhost_addr.s_addr) {
+ sin->sin_addr = so->so_faddr;
+ }
+ }
+ break;
+
+ case AF_INET6:
+ if (in6_equal_net(&so->so_faddr6, &slirp->vprefix_addr6,
+ slirp->vprefix_len)) {
+ if (in6_equal(&sin6->sin6_addr, &in6addr_loopback)
+ || !in6_equal(&so->so_faddr6, &slirp->vhost_addr6)) {
+ sin6->sin6_addr = so->so_faddr6;
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/*
+ * Translate connections from localhost to the real hostname
+ */
+void sotranslate_accept(struct socket *so)
+{
+ Slirp *slirp = so->slirp;
+
+ switch (so->so_ffamily) {
+ case AF_INET:
+ if (so->so_faddr.s_addr == INADDR_ANY ||
+ (so->so_faddr.s_addr & loopback_mask) ==
+ (loopback_addr.s_addr & loopback_mask)) {
+ so->so_faddr = slirp->vhost_addr;
+ }
+ break;
+
+ case AF_INET6:
+ if (in6_equal(&so->so_faddr6, &in6addr_any) ||
+ in6_equal(&so->so_faddr6, &in6addr_loopback)) {
+ so->so_faddr6 = slirp->vhost_addr6;
+ }
+ break;
+
+ default:
+ break;
+ }
+}
projects / mirror_qemu.git / blobdiff