skb_partial_csum_set9
Set up and verify partial csum values for packet
Usage
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.
Overview
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.
Releases
5 releases since Debian 5.0 (Lenny); the text changed 4 times.