From: Alexander Aring <alex.aring@gmail.com>
To: Simon Vincent <simon.vincent@xsilon.com>
Cc: linux-wpan@vger.kernel.org
Subject: Re: 6lowpan raw socket problems
Date: Tue, 2 Sep 2014 16:43:29 +0200 [thread overview]
Message-ID: <20140902144327.GA15189@omega> (raw)
In-Reply-To: <5405D284.7020606@xsilon.com>
Hi Simon,
On Tue, Sep 02, 2014 at 03:21:56PM +0100, Simon Vincent wrote:
> I am having problems with raw sockets on a 6lowpan 802.15.4 interface. The
> code works correctly on an ethernet ipv6 interface but not on a 6lowpan
> interface. In the 6lowpan interface I receive packets but I find the src and
> dest addresses are incorrect.
>
> I open the socket like this:
> socket(AF_INET6, SOCK_RAW, IPPROTO_ICMPV6);
>
> Add options for IPV6_RECVPKTINFO, IPV6_CHECKSUM, IPV6_RECVHOPLIMIT.
>
> I then receive a packet using recvmsg and attempt to get the source address.
> The source address is rubbish. Also trying to get the destination address
> from IPV6_PKTINFO using CMSG_FIRSTHDR results in rubbish.
>
> Can anyone explain why? Is there something different I have to do when using
> 802.15.4 and 6lowpan?
>
Can you please send a test programm for this as example? Then I/We will
look at why this happen.
I think this would be the best to find why you have this issue. Doesn't
need to be the full program only a small example.
What I can say actually is:
To send ICMPv6 packets from userspace you need RAW-Sockets. This is how
ping6 do it and ping6 works on my side. Maybe there is a issue because
some of your sockopts.
- Alex
next prev parent reply other threads:[~2014-09-02 14:43 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1409567774.3120.57.camel@jrissane-mobl.ger.corp.intel.com>
2014-09-01 11:38 ` 6lowpan status Alexander Aring
2014-09-02 6:08 ` Jukka Rissanen
2014-09-02 7:12 ` Alexander Aring
2014-09-02 7:26 ` Alexander Aring
2014-09-02 14:21 ` 6lowpan raw socket problems Simon Vincent
2014-09-02 14:43 ` Alexander Aring [this message]
2014-09-02 14:51 ` Simon Vincent
2014-09-02 15:18 ` Alexander Aring
2014-09-02 15:37 ` Alexander Aring
2014-09-02 16:06 ` Simon Vincent
2014-09-02 16:26 ` Alexander Aring
2014-09-02 18:53 ` Martin Townsend
2014-09-08 10:43 ` Alexander Aring
2014-09-17 13:30 ` Simon Vincent
2014-09-17 13:57 ` Alexander Aring
[not found] ` <5419A9DD.5070804@xsilon.com>
2014-09-17 16:03 ` Alexander Aring
2014-09-17 16:17 ` Alexander Aring
2014-09-18 7:55 ` Simon Vincent
[not found] <5419ABD6.70607@xsilon.com>
2014-09-17 15:43 ` Simon Vincent
2014-09-18 7:46 Simon Vincent
2014-09-18 8:33 ` Alexander Aring
2014-09-18 8:37 ` Simon Vincent
2014-09-18 8:45 ` Alexander Aring
2014-09-18 8:54 ` Alexander Aring
2014-09-18 9:03 ` Simon Vincent
2014-09-18 9:44 ` Alexander Aring
2014-09-18 9:45 ` Alexander Aring
2014-09-18 14:02 ` Simon Vincent
2014-09-18 14:19 ` Alexander Aring
2014-09-18 15:54 ` Simon Vincent
2014-09-18 16:30 ` Alexander Aring
2014-09-18 16:37 ` Alexander Aring
2014-09-18 17:03 ` Simon Vincent
2014-09-18 17:09 ` Alexander Aring
2014-09-19 8:27 ` Simon Vincent
2014-09-19 9:33 ` Alexander Aring
2014-09-19 9:57 ` Simon Vincent
2014-09-19 10:15 ` Alexander Aring
2014-09-19 10:39 ` Alexander Aring
2014-09-19 11:08 ` Alexander Aring
2014-09-19 11:27 ` Simon Vincent
2014-09-19 11:45 ` Alexander Aring
2014-09-19 11:50 ` Alexander Aring
2014-09-19 11:59 ` Alexander Aring
2014-09-19 12:00 ` Simon Vincent
2014-09-19 12:06 ` Alexander Aring
2014-09-19 12:38 ` Alexander Aring
2014-09-19 12:44 ` Simon Vincent
2014-09-19 12:55 ` Alexander Aring
2014-09-19 12:57 ` Alexander Aring
2014-09-19 14:14 ` Simon Vincent
2014-09-19 14:21 ` Alexander Aring
2014-09-19 14:22 ` Alexander Aring
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