skb_copy_bits (9) Linux Manual Page
skb_copy_bits – copy bits from skb to kernel buffer
Synopsis
int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len);Arguments
skb
-
- source skb
offset
- offset in source
to
- destination buffer
len
- number of bytes to copy
Description
Copy the specified number of bytes from the source skb to the destination buffer.
CAUTION ! : If its prototype is ever changed, check arch/{*}/net/{*}.S files, since it is called from BPF assembly code.