search for: virnetdevtapcreateinbridgeport

...issions that could result in you having a seriously bad day (it's enough permissions to MITM all the machine's traffic, which could easily result in compromise) It looks to me like libvirt already has the ability to create tap devices and pass them into qemu (src/util/virnetdevtap.c - virNetDevTapCreateInBridgePort), however you need to actually be using a bridged network to do this. There is no way to have libvirt just create a tap device and leave the rest to user defined scripts. I don't think I have the necessary knowledge to add that feature in a generic way, but it seems like it would be pretty...

...and later, when clearing up then NULL is passed as "generated" TAP device name. But this is just my guess, because I'm unable to reproduce. But in order to confirm, we need to trace the domain command line generation process. Can you attach debugger to libvirtd, set a break point on virNetDevTapCreateInBridgePort() and step through it to find which function fails, please? Can you please turn on debug logs and share them? https://wiki.libvirt.org/page/DebugLogs Michal

...n you having a seriously bad day (it's enough permissions to > MITM all the machine's traffic, which could easily result in compromise) > > > It looks to me like libvirt already has the ability to create tap > devices and pass them into qemu (src/util/virnetdevtap.c - > virNetDevTapCreateInBridgePort), however you need to actually be using > a bridged network to do this. There is no way to have libvirt just > create a tap device and leave the rest to user defined scripts. > > I don't think I have the necessary knowledge to add that feature in a > generic way, but it seems...

Hi, my system got updated to libvirt 6.0.0 (from 5.6.0) this morning, and now I'm having problems starting VMs that make use of openvswitch portgroups. When I start a VM, I get this error message on virsh: > virsh # start testvm > error: Failed to start domain testvm > error: An error occurred, but the cause is unknown The system log contains: > Mar 30 09:45:39 tplinux

2015-03-02 23:41 GMT+03:00 Brian Rak <brak@gameservers.com>: > In IRC, I was directed to this patch: > https://www.redhat.com/archives/libvir-list/2015-February/msg01212.html ... > which does exactly what I was looking for. It doesn't build cleanly in that > state, but it's pretty trivial fix (needs actualType added to the function > definition for

...etween the tap0 device in the hypervisor and the ethX device in the VM will totally different . so I think that libvirt must do something about the mac address handling, could you please kindly tell me something about this ? I have found a function in libvirt-0.10.2.8\src\util\ virnetdevtap.c int virNetDevTapCreateInBridgePort(const char *brname, char **ifname, const virMacAddrPtr macaddr, const unsigned char *vmuuid, int *tapfd, virNetDevVPortProfi...