---
name: "skb_copy_and_csum_datagram_iovec"
section: "9"
platform: "linux"
package: "linux-manual-3.16"
version: "3.16.56-1+deb8u1"
release: "Debian 8 (Jessie)"
platforms: ["linux"]
url: "https://new.carta.tech/skb_copy_and_csum_datagram_iovec"
---

# skb\_copy\_and\_csum\_datagram\_iovec(9)

Copy and checkum skb to user iovec.

## NAME

skb\_copy\_and\_csum\_datagram\_iovec - Copy and checkum skb to user iovec.

## SYNOPSIS

**int skb\_copy\_and\_csum\_datagram\_iovec(struct sk\_buff \*** *skb***, int** *hlen***, struct iovec \*** *iov***);**

## ARGUMENTS

*skb*

skbuff

*hlen*

hardware length

*iov*

io vector

## DESCRIPTION

Caller \_must\_ check that skb will fit to this iovec.

## RETURNS

0 - success. -EINVAL - checksum failure. -EFAULT - fault during copy. Beware, in this case iovec can be modified!

## COPYRIGHT