Zitat von Ben Pfaff <b...@ovn.org>:
On Mon, Mar 27, 2017 at 09:08:32PM +0200, Adam Paul Rzyska wrote:
Hello,
in the last weeks I tried to exchange custom openflow messages (type
experimenter) between a controller (ONOS) and a switch (Open vSwitch). The
controller sends a really simple of-msg:
struct my_custom_struct : of_nicira_header {
uint8_t version;
uint8_t type == 4;
uint16_t length;
uint32_t xid;
uint32_t experimenter == 0x00002320;
uint32_t subtype == 0x0080;
};
In wireshark and OVS it is possible to see, that the switch receives my
custom messages. I've added ofpraw and oftype in ofp-msgs.h. My
request_method have been added to ofproto.c and also into the switch case.
It works fine with a simple VLOG_INFO() output. Every time the switch
receive my custom message a VLOG_INFO-message pops up into the logging file
of OVS. But as soon as I'm trying to implement a reply/replies a error
occurs, which crash's the vswichd (demon). This results in disconnecting the
switch from the controller.
Error message: 2017-02-05T12:09:02Z|00225|ofp_msgs|WARN|unknown OpenFlow
message (version 4, type 19, stat 0, vendor 0x2320, subtype 80)
I know exactly where it happens, but I don't know why... It starts with
ofpmp_init() in my method.
Can you post a backtrace from GDB? Have you tried running ovs-vswitchd
under valgrind?
I've installed OVS on a tp-link router which has not enough space for
things like gdb or make. If it's necessary I would expand the disk
space with an additional usb stick.
So, do I run gdb like: gdb <program> <process-id> ?
Never heard of valgrind, but found the ovs documentation
http://docs.openvswitch.org/en/latest/topics/testing/.
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