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kernel APIs related to sk_buff
Hi! there.
I'm looking into the source code of IP fragmentation and
reassemble functions in 2.4.x. Meantime, I can't understand
the meaning of several APIs related to sk_buff. The APIs are
as follows :
- skb_copy_bits()
- pskb_pull()
- pskb_trim()
- the usage of skb->data_len field
I've read the sources in sk_buff.h, I didn't understand the
full meaning of the aboves.
thanks any suggestion.
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