Messages in this thread | | | From | "nctucis" <> | Subject | skbuff.h | Date | Mon, 9 Apr 2001 21:48:12 +0800 |
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Hi,
I use 2.2.16 kernel. I found that there is a sk_buff structure in "/usr/src/linux/include/linux/skbuff.c", and there is a variable "unsigned in csum;" in the sk_buff structure.
I want to know this checksum check what information. Could you give me a hand, please?
-=-=-=-=-=-=-=- In fact, I found 64byte and 1518byte UDP packet waste different time to do masquerade(ip_fw_masquerade). Many books say NAT just modify header fields, so it should no different between small and big packet size. I guess the different time due to csum_partial(h.raw, doff, sum) in ip_fw_masquerade(). Right? Thanks a lot. (But I can't find out source code of this function.)
Cheers, Tom
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