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Differences between skb_put (SKB, Len) and skb_push (SKB, Len)

Source: Internet
Author: User
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Skb_put () increases the length of the data area to prepare space for memcpy. For many network operations, you need to add some Routing headers, which can be usedSkb_pushTo push the data area backward to leave space for the header.

See:

----------------------------------------
| HEAD | data |
----------------------------------------

Skb_put
-----------------------------------------
| HEAD | data | put_data |
-----------------------------------------

Skb_push
------------------------------------------
| HEAD | push_data | data | put_data |
------------------------------------------

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Related Keywords:
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