Philippe De Muyter writes:
> Actually, that's probably the case I had, but my fix gets the ip adresses
> 4byte aligned in my case : I had verified the address of the saddr field,
> and I needed to shift the buffer by 3, not 1, to get it 4byte aligned.
Please outline the code flow that leads to that situation. AFAICS we
would only need to shift the buffer by 3 if we had a compressed
(1-byte) protocol number at the original skb->data, implying that the
protocol byte was first. But if the protocol byte was first, then
this code:
if (buf[0] != PPP_ALLSTATIONS)
skb_reserve(skb, 2 + (buf[0] & 1));
at line 893 should have moved skb->data up by 3 bytes already, since a
1-byte protocol number is always odd.
If that is not the case then there is something else going on beyond
the data getting misaligned, and I would like to know what it is.
Paul.
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