Hi Rob,
On Mon, 2008-05-26 at 03:36 -0700, Rob Loefman wrote:
> Hi,
> the code in the attachment freezes up my Sparc T5120 with
> OpenSolaris/Clearview.
> I get no errors while compiling nor when running the program, only freeze-up
> so
> that HW restart is needed.
The bad news is that I cannot reproduce the hang, and that I found a
number of problems in your program. The good news is that I modified
your code such that it works. I've attached a version of the code with
my modifications. The changes I made were:
* Split up various code blocks into individual lines so that I could
read the code.
* Removed the DLPI_RAW flag from dlpi_open(), as you're not sending a
raw outer IP header with the data.
* changed "dst" to a 4 byte character array with four 0 bytes. The
value doesn't matter here since the tunnel will always use the
pre-configured tunnel destination.
* Created a dlpi_sendinfo_t variable sendinfo, and set sdi_sap to
IPPROTO_ENCAP. This is crucial since the kernel needs to know what
protocol to set in the outer IP header.
* changed the dlpi_send() call to take the above into account, so it now
looks like:
err = dlpi_send(dh, dst, sizeof (dst), ipPacket, sizeof (ipPacket),
&sendinfo);
>
> It is probably interesting to know even though I might have some trivial error
> in the code. BTW if someone finds it, please let me know. It is the first time
> I've used dlpi_open and I'm unsure about the destination MAC address (should
> the
> sap be included , 0x0800?)
See above. Let me know if you have questions on what I did.
-Seb
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