Date: Fri, 8 Jan 2016 15:11:24 -0800 From: Navdeep Parhar <nparhar@gmail.com> To: Hadi Rezaee <h.rezaee@ideatech.io>, freebsd-net@freebsd.org Subject: Re: ethernet header size Message-ID: <5690421C.7040609@gmail.com> In-Reply-To: <56904059.4010806@ideatech.io> References: <56904059.4010806@ideatech.io>
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sizeof(struct ether_header)
On 01/08/2016 15:03, Hadi Rezaee wrote:
> Hello there,
>
> In some part of my application I need to have the Ethernet header size
> (ideally, using sizeof).
> Well I guess 'ethhdr' is not exist on FreeBSD, correct ?
>
> According to Linux definition:
>
> struct ethhdr {
> unsigned char h_dest[ETH_ALEN];
> unsigned char h_source[ETH_ALEN];
> unsigned short h_proto;
> } __attribute__((packed));
>
> So, assume the ethernet header size is equal to 14, is it going to work
> ?! :)
> and if there is already a definition somewhere in system header files,
> so I don't have to define the size myself ?
>
> Thank you
>
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