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skb_partial_csum_set
Langue: en
Version: June 2009 (debian - 07/07/09)
Section: 9 (Appels noyau Linux)
NAME
skb_partial_csum_set - set up and verify partial csum values for packetSYNOPSIS
- bool skb_partial_csum_set(struct sk_buff * skb, u16 start, u16 off);
ARGUMENTS
skb
- the skb to set
start
- the number of bytes after skb->data to start checksumming.
off
- the offset from start to place the checksum.
DESCRIPTION
For untrusted partially-checksummed packets, we need to make sure the values for skb->csum_start and skb->csum_offset are valid so we don't oops.
This function checks and sets those values and skb->ip_summed: if this returns false you should drop the packet.
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