mirror of
https://github.com/lwip-tcpip/lwip.git
synced 2024-11-04 23:29:25 +00:00
sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and port uses deleted netbuf.
This commit is contained in:
parent
6777ae2ada
commit
411cb39eb4
10
CHANGELOG
10
CHANGELOG
@ -26,7 +26,7 @@ HISTORY
|
||||
|
||||
2008-10-02 Jonathan Larmour and Rishi Khan
|
||||
* sockets.c (lwip_accept): Return EWOULDBLOCK if would block on non-blocking
|
||||
socket.
|
||||
socket.
|
||||
|
||||
2008-06-30 Simon Goldschmidt
|
||||
* mem.c, opt.h, stats.h: fixed bug #21433: Calling mem_free/pbuf_free from
|
||||
@ -56,6 +56,10 @@ HISTORY
|
||||
|
||||
++ Bugfixes:
|
||||
|
||||
2008-12-10 Tamas Somogyi, Frédéric Bernon
|
||||
* sockets.c: fixed bug #25051: lwip_recvfrom problem with udp: fromaddr and
|
||||
port uses deleted netbuf.
|
||||
|
||||
2008-10-18 Simon Goldschmidt
|
||||
* tcp_in.c: fixed bug ##24596: Vulnerability on faulty TCP options length
|
||||
in tcp_parseopt
|
||||
@ -69,11 +73,11 @@ HISTORY
|
||||
|
||||
2008-10-02 Jonathan Larmour
|
||||
* dns.c: Hard-code structure sizes, to avoid issues on some compilers where
|
||||
padding is included.
|
||||
padding is included.
|
||||
|
||||
2008-09-30 Jonathan Larmour
|
||||
* sockets.c (lwip_accept): check addr isn't NULL. If it's valid, do an
|
||||
assertion check that addrlen isn't NULL.
|
||||
assertion check that addrlen isn't NULL.
|
||||
|
||||
2008-09-30 Jonathan Larmour
|
||||
* tcp.c: Fix bug #24227, wrong error message in tcp_bind.
|
||||
|
@ -530,19 +530,66 @@ lwip_recvfrom(int s, void *mem, int len, unsigned int flags,
|
||||
|
||||
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
||||
len -= copylen;
|
||||
if ( (len <= 0) || (buf->p->flags & PBUF_FLAG_PUSH) || !sock->rcvevent) {
|
||||
if ( (len <= 0) || (buf->p->flags & PBUF_FLAG_PUSH) || !sock->rcvevent || ((flags & MSG_PEEK)!=0)) {
|
||||
done = 1;
|
||||
}
|
||||
} else {
|
||||
done = 1;
|
||||
}
|
||||
|
||||
/* Check to see from where the data was.*/
|
||||
if (done) {
|
||||
if (from && fromlen) {
|
||||
struct sockaddr_in sin;
|
||||
|
||||
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
||||
addr = (struct ip_addr*)&(sin.sin_addr.s_addr);
|
||||
netconn_getaddr(sock->conn, addr, &port, 0);
|
||||
} else {
|
||||
addr = netbuf_fromaddr(buf);
|
||||
port = netbuf_fromport(buf);
|
||||
}
|
||||
|
||||
memset(&sin, 0, sizeof(sin));
|
||||
sin.sin_len = sizeof(sin);
|
||||
sin.sin_family = AF_INET;
|
||||
sin.sin_port = htons(port);
|
||||
sin.sin_addr.s_addr = addr->addr;
|
||||
|
||||
if (*fromlen > sizeof(sin)) {
|
||||
*fromlen = sizeof(sin);
|
||||
}
|
||||
|
||||
SMEMCPY(from, &sin, *fromlen);
|
||||
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
||||
ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, off));
|
||||
} else {
|
||||
#if SOCKETS_DEBUG
|
||||
struct sockaddr_in sin;
|
||||
|
||||
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
||||
addr = (struct ip_addr*)&(sin.sin_addr.s_addr);
|
||||
netconn_getaddr(sock->conn, addr, &port, 0);
|
||||
} else {
|
||||
addr = netbuf_fromaddr(buf);
|
||||
port = netbuf_fromport(buf);
|
||||
}
|
||||
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
||||
ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, off));
|
||||
#endif /* SOCKETS_DEBUG */
|
||||
}
|
||||
}
|
||||
|
||||
/* If we don't peek the incoming message... */
|
||||
if ((flags & MSG_PEEK)==0) {
|
||||
/* If this is a TCP socket, check if there is data left in the
|
||||
buffer. If so, it should be saved in the sock structure for next
|
||||
time around. */
|
||||
if ((sock->conn->type == NETCONN_TCP) && (buflen - copylen > 0)) {
|
||||
if ((netconn_type(sock->conn) == NETCONN_TCP) && (buflen - copylen > 0)) {
|
||||
sock->lastdata = buf;
|
||||
sock->lastoffset += copylen;
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: lastdata now netbuf=%p\n", (void*)buf));
|
||||
@ -552,55 +599,9 @@ lwip_recvfrom(int s, void *mem, int len, unsigned int flags,
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom: deleting netbuf=%p\n", (void*)buf));
|
||||
netbuf_delete(buf);
|
||||
}
|
||||
} else {
|
||||
done = 1;
|
||||
}
|
||||
} while (!done);
|
||||
|
||||
/* Check to see from where the data was.*/
|
||||
if (from && fromlen) {
|
||||
struct sockaddr_in sin;
|
||||
|
||||
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
||||
addr = (struct ip_addr*)&(sin.sin_addr.s_addr);
|
||||
netconn_getaddr(sock->conn, addr, &port, 0);
|
||||
} else {
|
||||
addr = netbuf_fromaddr(buf);
|
||||
port = netbuf_fromport(buf);
|
||||
}
|
||||
|
||||
memset(&sin, 0, sizeof(sin));
|
||||
sin.sin_len = sizeof(sin);
|
||||
sin.sin_family = AF_INET;
|
||||
sin.sin_port = htons(port);
|
||||
sin.sin_addr.s_addr = addr->addr;
|
||||
|
||||
if (*fromlen > sizeof(sin))
|
||||
*fromlen = sizeof(sin);
|
||||
|
||||
SMEMCPY(from, &sin, *fromlen);
|
||||
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
||||
ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, off));
|
||||
} else {
|
||||
#if SOCKETS_DEBUG
|
||||
struct sockaddr_in sin;
|
||||
|
||||
if (netconn_type(sock->conn) == NETCONN_TCP) {
|
||||
addr = (struct ip_addr*)&(sin.sin_addr.s_addr);
|
||||
netconn_getaddr(sock->conn, addr, &port, 0);
|
||||
} else {
|
||||
addr = netbuf_fromaddr(buf);
|
||||
port = netbuf_fromport(buf);
|
||||
}
|
||||
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_recvfrom(%d): addr=", s));
|
||||
ip_addr_debug_print(SOCKETS_DEBUG, addr);
|
||||
LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%u len=%u\n", port, off));
|
||||
#endif /* SOCKETS_DEBUG */
|
||||
}
|
||||
|
||||
sock_set_errno(sock, 0);
|
||||
return off;
|
||||
}
|
||||
|
Loading…
Reference in New Issue
Block a user