/*
* Copyright (c) 1995 Danny Gasparovski.
- *
- * Please read the file COPYRIGHT for the
+ *
+ * Please read the file COPYRIGHT for the
* terms and conditions of the copyright.
*/
-#define WANT_SYS_IOCTL_H
+#include "qemu-common.h"
#include <slirp.h>
#include "ip_icmp.h"
-#include "main.h"
+#ifdef __sun__
+#include <sys/filio.h>
+#endif
-void
+static void sofcantrcvmore(struct socket *so);
+static void sofcantsendmore(struct socket *so);
+
+#if 0
+static void
so_init()
{
/* 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;
+solookup(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 &&
+ 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;
-
+
}
/*
* insque() it into the correct linked-list
*/
struct socket *
-socreate()
+socreate(void)
{
struct socket *so;
-
+
so = (struct socket *)malloc(sizeof(struct socket));
if(so) {
memset(so, 0, sizeof(struct socket));
* remque and free a socket, clobber cache
*/
void
-sofree(so)
- struct socket *so;
+sofree(struct socket *so)
{
if (so->so_emu==EMU_RSH && so->extra) {
sofree(so->extra);
tcp_last_so = &tcb;
else if (so == udp_last_so)
udp_last_so = &udb;
-
+
m_free(so->so_m);
-
- if(so->so_next && so->so_prev)
+
+ if(so->so_next && so->so_prev)
remque(so); /* crashes if so is not in a queue */
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_CALL("sopreprbuf");
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
- */
-
+
len = sb->sb_datalen - sb->sb_cc;
-
+
+ if (len <= 0)
+ return 0;
+
iov[0].iov_base = sb->sb_wptr;
+ iov[1].iov_base = NULL;
+ iov[1].iov_len = 0;
if (sb->sb_wptr < sb->sb_rptr) {
iov[0].iov_len = sb->sb_rptr - sb->sb_wptr;
/* Should never succeed, but... */
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 = %lx", (long )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);
-#endif
+#endif
if (nn <= 0) {
if (nn < 0 && (errno == EINTR || errno == EAGAIN))
return 0;
return -1;
}
}
-
+
#ifndef HAVE_READV
/*
* If there was no error, try and read the second time round
if (ret > 0)
nn += ret;
}
-
+
DEBUG_MISC((dfd, " ... read nn = %d bytes\n", nn));
#endif
-
+
/* Update fields */
sb->sb_cc += nn;
sb->sb_wptr += nn;
sb->sb_wptr -= sb->sb_datalen;
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 = %lx", (long )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
- *
+ *
* When the socket is created, we set it SO_OOBINLINE,
* 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;
+sorecvoob(struct socket *so)
{
struct tcpcb *tp = sototcpcb(so);
DEBUG_CALL("sorecvoob");
DEBUG_ARG("so = %lx", (long)so);
-
+
/*
* We take a guess at how much urgent data has arrived.
* In most situations, when urgent data arrives, the next
* read() should get all the urgent data. This guess will
* be wrong however if more data arrives just after the
- * urgent data, or the read() doesn't return all the
+ * urgent data, or the read() doesn't return all the
* urgent data.
*/
soread(so);
* 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("sb->sb_cc = %d", sb->sb_cc);
-
+
if (so->so_urgc > 2048)
so->so_urgc = 2048; /* XXXX */
-
+
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));
} else {
- /*
+ /*
* Since there's no sendv or sendtov like writev,
* we must copy all data to a linear buffer then
* send it all
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"));
-#endif
+#endif
DEBUG_MISC((dfd, " ---2 sent %d bytes urgent data, %d urgent bytes left\n", n, so->so_urgc));
}
-
+
sb->sb_cc -= n;
sb->sb_rptr += n;
if (sb->sb_rptr >= (sb->sb_data + sb->sb_datalen))
sb->sb_rptr -= sb->sb_datalen;
-
+
return n;
}
/*
- * Write data from so_rcv to so's socket,
+ * Write data from so_rcv to so's socket,
* 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;
int len = sb->sb_cc;
struct iovec iov[2];
-
+
DEBUG_CALL("sowrite");
DEBUG_ARG("so = %lx", (long)so);
-
+
if (so->so_urgc) {
sosendoob(so);
if (sb->sb_cc == 0)
* No need to check if there's something to write,
* 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;
if (sb->sb_rptr < sb->sb_wptr) {
iov[0].iov_len = sb->sb_wptr - sb->sb_rptr;
/* Should never succeed, but... */
#ifdef HAVE_READV
nn = writev(so->s, (const struct iovec *)iov, n);
-
+
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))
return 0;
-
+
if (nn <= 0) {
DEBUG_MISC((dfd, " --- sowrite disconnected, so->so_state = %x, errno = %d\n",
so->so_state, errno));
tcp_sockclosed(sototcpcb(so));
return -1;
}
-
+
#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;
}
DEBUG_MISC((dfd, " ... wrote nn = %d bytes\n", nn));
#endif
-
+
/* Update sbuf */
sb->sb_cc -= nn;
sb->sb_rptr += nn;
if (sb->sb_rptr >= (sb->sb_data + sb->sb_datalen))
sb->sb_rptr -= sb->sb_datalen;
-
+
/*
* If in DRAIN mode, and there's no more data, set
* it CANTSENDMORE
*/
if ((so->so_state & SS_FWDRAIN) && sb->sb_cc == 0)
sofcantsendmore(so);
-
+
return nn;
}
* recvfrom() a UDP socket
*/
void
-sorecvfrom(so)
- struct socket *so;
+sorecvfrom(struct socket *so)
{
struct sockaddr_in addr;
- int addrlen = sizeof(struct sockaddr_in);
-
+ socklen_t addrlen = sizeof(struct sockaddr_in);
+
DEBUG_CALL("sorecvfrom");
DEBUG_ARG("so = %lx", (long)so);
-
+
if (so->so_type == IPPROTO_ICMP) { /* This is a "ping" reply */
char buff[256];
int len;
-
- len = recvfrom(so->s, buff, 256, 0,
+
+ len = recvfrom(so->s, buff, 256, 0,
(struct sockaddr *)&addr, &addrlen);
/* XXX Check if reply is "correct"? */
-
+
if(len == -1 || 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," udp icmp rx errno = %d-%s\n",
errno,strerror(errno)));
icmp_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);
int len, n;
if (!(m = m_get())) return;
- m->m_data += if_maxlinkhdr;
-
- /*
+ m->m_data += IF_MAXLINKHDR;
+
+ /*
* XXX Shouldn't FIONREAD packets destined for port 53,
* but I don't know the max packet size for DNS lookups
*/
len = M_FREEROOM(m);
/* if (so->so_fport != htons(53)) { */
ioctlsocket(so->s, FIONREAD, &n);
-
+
if (n > len) {
n = (m->m_data - m->m_dat) + m->m_len + n + 1;
m_inc(m, n);
len = M_FREEROOM(m);
}
/* } */
-
+
m->m_len = recvfrom(so->s, m->m_data, len, 0,
(struct sockaddr *)&addr, &addrlen);
- DEBUG_MISC((dfd, " did recvfrom %d, errno = %d-%s\n",
+ 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));
m_free(m);
* 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
*/
* 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;
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 */
addr.sin_port = so->so_fport;
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)));
-
+
/* Don't care what port we get */
ret = sendto(so->s, m->m_data, m->m_len, 0,
(struct sockaddr *)&addr, sizeof (struct sockaddr));
if (ret < 0)
return -1;
-
+
/*
* Kill the socket if there's no reply in 4 minutes,
* but only if it's an expirable socket
* XXX This should really be tcp_listen
*/
struct socket *
-solisten(port, laddr, lport, flags)
- u_int port;
- u_int32_t laddr;
- u_int lport;
- int flags;
+solisten(u_int port, u_int32_t laddr, u_int lport, int flags)
{
struct sockaddr_in addr;
struct socket *so;
- int s, addrlen = sizeof(addr), opt = 1;
+ int s, opt = 1;
+ socklen_t addrlen = sizeof(addr);
DEBUG_CALL("solisten");
DEBUG_ARG("port = %d", port);
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 */
return NULL;
}
-
+
/* Don't tcp_attach... we don't need so_snd nor so_rcv */
if ((so->so_tcpcb = tcp_newtcpcb(so)) == NULL) {
free(so);
return NULL;
}
insque(so,&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_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;
-
+
if (((s = socket(AF_INET,SOCK_STREAM,0)) < 0) ||
+ (setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int)) < 0) ||
(bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
(listen(s,1) < 0)) {
int tmperrno = errno; /* Don't clobber the real reason we failed */
-
+
close(s);
sofree(so);
/* Restore the real errno */
#endif
return NULL;
}
- setsockopt(s,SOL_SOCKET,SO_REUSEADDR,(char *)&opt,sizeof(int));
setsockopt(s,SOL_SOCKET,SO_OOBINLINE,(char *)&opt,sizeof(int));
-
+
getsockname(s,(struct sockaddr *)&addr,&addrlen);
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 = our_addr;
+ so->so_faddr = alias_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...
*/
-void
+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
*/
-void
+static void
sowwakeup(so)
struct socket *so;
{
/* Nothing, yet */
}
+#endif
/*
* Various session state calls
* 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 */
}
-void
-sofcantrcvmore(so)
- struct socket *so;
+static void
+sofcantrcvmore(struct socket *so)
{
if ((so->so_state & SS_NOFDREF) == 0) {
shutdown(so->s,0);
so->so_state |= SS_FCANTRCVMORE;
}
-void
-sofcantsendmore(so)
- struct socket *so;
+static void
+sofcantsendmore(struct socket *so)
{
if ((so->so_state & SS_NOFDREF) == 0) {
shutdown(so->s,1); /* send FIN to fhost */
}
void
-soisfdisconnected(so)
- struct socket *so;
+soisfdisconnected(struct socket *so)
{
/* so->so_state &= ~(SS_ISFCONNECTING|SS_ISFCONNECTED); */
/* close(so->s); */
* 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);
}
-
projects / qemu / blobdiff