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Correct a buffer size error in the STM32 ethernet driver

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git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@4403 7fd9a85b-ad96-42d3-883c-3090e2eb8679
This commit is contained in:
patacongo
2012-02-18 22:09:09 +00:00
parent f04310d559
commit c3e6ead339
6 changed files with 42 additions and 29 deletions
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nuttx/net/net_timeo.c
+2 -2
View File
@@ -1,8 +1,8 @@
/****************************************************************************
* net/net_timeo.c
*
* Copyright (C) 2007-2009, 2011 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007-2009, 2011-2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
nuttx/net/uip/uip_chksum.c
+2 -2
View File
@@ -1,8 +1,8 @@
/****************************************************************************
* net/uip/uip_chksum.c
*
* Copyright (C) 2007-2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007-2010, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
nuttx/net/uip/uip_input.c
+17 -14
View File
@@ -2,8 +2,8 @@
* net/uip/uip_input.c
* The uIP TCP/IP stack code.
*
* Copyright (C) 2007-2009 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
* Copyright (C) 2007-2009, 2012 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Adapted for NuttX from logic in uIP which also has a BSD-like license:
*
@@ -297,6 +297,7 @@ nullreturn:
void uip_input(struct uip_driver_s *dev)
{
struct uip_ip_hdr *pbuf = BUF;
uint16_t iplen;
/* This is where the input processing starts. */
@@ -343,20 +344,23 @@ void uip_input(struct uip_driver_s *dev)
* we set d_len to the correct value.
*/
if ((pbuf->len[0] << 8) + pbuf->len[1] <= dev->d_len)
{
dev->d_len = (pbuf->len[0] << 8) + pbuf->len[1];
#ifdef CONFIG_NET_IPv6
/* The length reported in the IPv6 header is the length of the
* payload that follows the header. However, uIP uses the d_len
* variable for holding the size of the entire packet, including the
* IP header. For IPv4 this is not a problem as the length field in
* the IPv4 header contains the length of the entire packet. But
* for IPv6 we need to add the size of the IPv6 header (40 bytes).
*/
/* The length reported in the IPv6 header is the length of the payload
* that follows the header. However, uIP uses the d_len variable for
* holding the size of the entire packet, including the IP header. For
* IPv4 this is not a problem as the length field in the IPv4 header
* contains the length of the entire packet. But for IPv6 we need to add
* the size of the IPv6 header (40 bytes).
*/
dev->d_len += 40;
iplen = (pbuf->len[0] << 8) + pbuf->len[1] + UIP_IPH_LEN;
#else
iplen = (pbuf->len[0] << 8) + pbuf->len[1];
#endif /* CONFIG_NET_IPv6 */
if (iplen <= dev->d_len)
{
dev->d_len = iplen;
}
else
{
@@ -538,4 +542,3 @@ drop:
dev->d_len = 0;
}
#endif /* CONFIG_NET */