Date: Wed, 6 Jun 2012 09:20:37 +0200 From: Michael Tuexen <Michael.Tuexen@lurchi.franken.de> To: Adrian Chadd <adrian@freebsd.org> Cc: "freebsd-net@freebsd.org mailing list" <freebsd-net@freebsd.org> Subject: Re: IP_RECVTOS Message-ID: <5A4A73CF-95FB-4B33-9652-2E4FD517CF5F@lurchi.franken.de> In-Reply-To: <CAJ-VmomrqRLkyTCFsgfcAsXC1V4KubsZ3AeY2K%2B6X7u-yjBOoQ@mail.gmail.com> References: <1D03F00E-2777-4B0B-8E1C-860EA115B6AF@lurchi.franken.de> <CAJ-Vmona0kHnOKXdmQDYksqGifmd5Fjgg-YniTcrHFZvZBv--Q@mail.gmail.com> <7731AEE8-D1BF-4297-8F75-454149D3E303@lurchi.franken.de> <CAJ-VmomrqRLkyTCFsgfcAsXC1V4KubsZ3AeY2K%2B6X7u-yjBOoQ@mail.gmail.com>
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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:
>
>> 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.
>
> Oh sweet, you can do that? Yes, I really would like to see this
> particular feature in FreeBSD.
>
> Thanks so much for coding it up!
>
> 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 = CMSG_LEN(sizeof(u_char))
cmsg_level = IPPROTO_IP
cmsg_type = IP_RECVTOS
Best regards
Michael
>
>
>
> Adrian
>
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