Thanks, that worked a treat! I added the following patch to
fakeswitch.c, and now I'm able to get responses from my POX controller:
Index: cbench/fakeswitch.c
===================================================================
--- cbench/fakeswitch.c (revision 135)
+++ cbench/fakeswitch.c (working copy)
@@ -261,6 +261,7 @@
int count;
struct ofp_header * ofph;
struct ofp_header echo;
+ struct ofp_header barrier;
char buf[BUFLEN];
count = msgbuf_read(fs->inbuf, fs->sock); // read any queued data
if (count <= 0)
@@ -357,6 +358,14 @@
echo.xid = ofph->xid;
msgbuf_push(fs->outbuf,(char *) &echo, sizeof(echo));
break;
+ case OFPT_BARRIER_REQUEST:
+ debug_msg(fs, "got barrier, sent barrier_resp");
+ barrier.version= OFP_VERSION;
+ barrier.length = htons(sizeof(barrier));
+ barrier.type = OFPT_BARRIER_REPLY;
+ barrier.xid = ofph->xid;
+ msgbuf_push(fs->outbuf,(char *) &barrier, sizeof(barrier));
+ break;
case OFPT_STATS_REQUEST:
stats_req = (struct ofp_stats_request *) ofph;
if ( ntohs(stats_req->type) == OFPST_DESC ) {
On Thu, Oct 25, 2012 at 03:50:41PM -0700, Rob Sherwood wrote:
> On Thu, Oct 25, 2012 at 3:41 PM, Peter Fales
> <peter.fa...@alcatel-lucent.com> wrote:
> > On Thu, Oct 25, 2012 at 02:59:12PM -0700, Rob Sherwood wrote:
> >> 2) it would be pretty easy (~5 lines of code) to add a barrier reply
> >> handler to cbench if you were so inclined.
> >
> > Thanks!
> >
> > I would like to pursue that, but I don't know anything out the cbench
> > code. Any suggestions on where to start looking?
>
> In fakeswitch.c:259 or so, there is the function:
>
> void fakeswitch_handle_read(struct fakeswitch *fs)
>
> that has the openflow state machine. It should be a matter of adding
> a case for a barrier request and creating and sending the barrier
> reply. For the example for echo request.
>
> Would love to get support for POX in place -- thanks!
>
> - Rob
> .
>
>
> >
> > --
> > Peter Fales
> > Alcatel-Lucent
> > Member of Technical Staff
> > 1960 Lucent Lane
> > Room: 9H-505
> > Naperville, IL 60566-7033
> > Email: peter.fa...@alcatel-lucent.com
> > Phone: 630 979 8031
--
Peter Fales
Alcatel-Lucent
Member of Technical Staff
1960 Lucent Lane
Room: 9H-505
Naperville, IL 60566-7033
Email: peter.fa...@alcatel-lucent.com
Phone: 630 979 8031
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