Messages in this thread Patch in this message | | | Date | Wed, 19 Jan 2005 18:07:26 -0800 (PST) | From | Junfeng Yang <> | Subject | [BUG] 2.6.* pktgen doesn't set ethnet header properly |
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Hi,
I tried to use pktgen module from 2.6.* kernels and found out that I couldn't receive any packets generated by pktgen. I did not even see a "packet dropped by kernel" message. It turned out that function setup_inject in net/core/pktgen.c doesn't setup the ethernet header field correctly. Below is a patch that fixes the problem.
--- kernel-source-2.6.8-orig/net/core/pktgen.c 2004-08-13 22:37:26.000000000 -0700 +++ kernel-source-2.6.8/net/core/pktgen.c 2005-01-19 17:54:46.000000000 -0800 @@ -259,6 +259,9 @@
/* Set up Dest MAC */ memcpy(&(info->hh[0]), info->dst_mac, 6); + + /* Set up protocol */ + ((struct ethhdr *)(info->hh))->h_proto = htons(ETH_P_IP);
info->saddr_min = 0; info->saddr_max = 0; -Junfeng
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