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| author | Michael Brown | 2009-06-05 02:06:07 +0200 |
|---|---|---|
| committer | Michael Brown | 2009-06-05 02:07:27 +0200 |
| commit | edfbd4e4fa63ded7df7232d38cfeb16bc5662f6d (patch) | |
| tree | 247c7caa9bdefb24ebc96d693911f95a2485d922 /src/include | |
| parent | [script] Allow for DOS-style line endings in scripts (diff) | |
| download | ipxe-edfbd4e4fa63ded7df7232d38cfeb16bc5662f6d.tar.gz ipxe-edfbd4e4fa63ded7df7232d38cfeb16bc5662f6d.tar.xz ipxe-edfbd4e4fa63ded7df7232d38cfeb16bc5662f6d.zip | |
[netdevice] Fix incorrect value for MAX_LL_HEADER_LEN
MAX_LL_HEADER_LEN is erroneously set to 6 rather than 14, resulting
in possible data corruption whenever we send an ARP packet.
Fix value and add a comment explaining why MAX_LL_ADDR_LEN is greater
than MAX_LL_HEADER_LEN.
Reported-by: Joshua Oreman <oremanj@rwcr.net>
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/gpxe/netdevice.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/include/gpxe/netdevice.h b/src/include/gpxe/netdevice.h index a2126fac0..cfcfb7778 100644 --- a/src/include/gpxe/netdevice.h +++ b/src/include/gpxe/netdevice.h @@ -21,11 +21,19 @@ struct net_protocol; struct ll_protocol; struct device; -/** Maximum length of a link-layer address */ +/** Maximum length of a link-layer address + * + * The longest currently-supported link-layer address is for IPoIB. + */ #define MAX_LL_ADDR_LEN 20 -/** Maximum length of a link-layer header */ -#define MAX_LL_HEADER_LEN 6 +/** Maximum length of a link-layer header + * + * The longest currently-supported link-layer header is for Ethernet. + * (The IPoIB link-layer pseudo-header doesn't actually include + * link-layer addresses; see ipoib.c for details). + */ +#define MAX_LL_HEADER_LEN 14 /** Maximum length of a network-layer address */ #define MAX_NET_ADDR_LEN 4 |