From owner-freebsd-net@FreeBSD.ORG  Wed Jun  6 07:20:41 2012
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From: Michael Tuexen <Michael.Tuexen@lurchi.franken.de>
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Date: Wed, 6 Jun 2012 09:20:37 +0200
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To: Adrian Chadd <adrian@freebsd.org>
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Subject: Re: IP_RECVTOS
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On Jun 6, 2012, at 8:50 AM, Adrian Chadd wrote:

> On 5 June 2012 15:11, Michael Tuexen =
<Michael.Tuexen@lurchi.franken.de> wrote:
>=20
>> Why should it get lost? If there are no objections, I'll commit it. =
If there
>> are, we'll see if we can resolve it.
>=20
> Oh sweet, you can do that? Yes, I really would like to see this
> particular feature in FreeBSD.
>=20
> Thanks so much for coding it up!
>=20
> Do you think it's worth adding an example or two which uses this?
Not sure how to add an example, but I've also a paragraph going into
man ip:

     If the IP_RECVTOS option is enabled on a SOCK_DGRAM socket, the
     recvmsg(2) call will return the IP TOS (type of service) field for =
a UDP
     datagram.  The msg_control field in the msghdr structure points to =
a
     buffer that contains a cmsghdr structure followed by the TOS.  The =
cms-
     ghdr fields have the following values:

     cmsg_len =3D CMSG_LEN(sizeof(u_char))
     cmsg_level =3D IPPROTO_IP
     cmsg_type =3D IP_RECVTOS

Best regards
Michael
>=20
>=20
>=20
> Adrian
>=20