diff options
| author | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2011-06-06 15:06:08 +0000 |
|---|---|---|
| committer | patacongo <patacongo@7fd9a85b-ad96-42d3-883c-3090e2eb8679> | 2011-06-06 15:06:08 +0000 |
| commit | e0b3ebce7f45ae093aa8b6257363043598081614 (patch) | |
| tree | 8d3abea4c75673c0780e3b1c8d8d5a623b75f3a5 /nuttx/include/net | |
| parent | 10184acdd204984b598e556579d702e0dd996915 (diff) | |
Fix minimum MTU... must be at lest 576
git-svn-id: https://nuttx.svn.sourceforge.net/svnroot/nuttx/trunk@3674 7fd9a85b-ad96-42d3-883c-3090e2eb8679
Diffstat (limited to 'nuttx/include/net')
| -rw-r--r-- | nuttx/include/net/uip/uip-arch.h | 2 | ||||
| -rw-r--r-- | nuttx/include/net/uip/uipopt.h | 12 |
2 files changed, 13 insertions, 1 deletions
diff --git a/nuttx/include/net/uip/uip-arch.h b/nuttx/include/net/uip/uip-arch.h index 2cbe7239c6..3cb2904ea3 100644 --- a/nuttx/include/net/uip/uip-arch.h +++ b/nuttx/include/net/uip/uip-arch.h @@ -117,7 +117,7 @@ struct uip_driver_s #ifdef CONFIG_NET_MULTIBUFFER uint8_t *d_buf; #else - uint8_t d_buf[CONFIG_NET_BUFSIZE + 2]; + uint8_t d_buf[CONFIG_NET_BUFSIZE + CONFIG_NET_GUARDSIZE]; #endif /* d_appdata points to the location where application data can be read from diff --git a/nuttx/include/net/uip/uipopt.h b/nuttx/include/net/uip/uipopt.h index f6aff58bd3..a0ba62ee10 100644 --- a/nuttx/include/net/uip/uipopt.h +++ b/nuttx/include/net/uip/uipopt.h @@ -134,6 +134,18 @@ #define UIP_REASS_MAXAGE (20*10) /* 20 seconds */ +/* Network drivers often receive packets with garbage at the end + * and are longer than the size of packet in the TCP header. The + * following "fudge" factor increases the size of the I/O buffering + * by a small amount to allocate slightly oversize packets. After + * receipt, the packet size will be chopped down to the size indicated + * in the TCP header. + */ + +#ifndef CONFIG_NET_GUARDSIZE +# define CONFIG_NET_GUARDSIZE 2 +#endif + /* ICMP configuration options */ #if !defined(CONFIG_NET_ICMP) || defined(CONFIG_DISABLE_CLOCK) |