/**
* virNetDevVethDelete:
* @veth: name for one end of veth pair
*
* This will delete both veth devices in a pair. Only one end needs to
* be specified. The ip command will identify and delete the other veth
* device as well.
* ip link del veth
*
* Returns 0 on success or -1 in case of error
*/
int virNetDevVethDelete(const char *veth)
{
virCommandPtr cmd = virCommandNewArgList("ip", "link", "del", veth, NULL);
int status;
int ret = -1;
if (virCommandRun(cmd, &status) < 0)
goto cleanup;
if (status != 0) {
if (!virNetDevExists(veth)) {
VIR_DEBUG("Device %s already deleted (by kernel namespace cleanup)", veth);
ret = 0;
goto cleanup;
}
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to delete veth device %s"), veth);
goto cleanup;
}
ret = 0;
cleanup:
virCommandFree(cmd);
return ret;
}
int
virNWFilterTerminateLearnReq(const char *ifname)
{
int rc = -1;
int ifindex;
virNWFilterIPAddrLearnReqPtr req;
/* It's possible that it's already been removed as a result of
* virNWFilterDeregisterLearnReq during learnIPAddressThread() exit
*/
if (virNetDevExists(ifname) != 1) {
virResetLastError();
return 0;
}
if (virNetDevGetIndex(ifname, &ifindex) < 0) {
virResetLastError();
return rc;
}
IFINDEX2STR(ifindex_str, ifindex);
virMutexLock(&pendingLearnReqLock);
req = virHashLookup(pendingLearnReq, ifindex_str);
if (req) {
rc = 0;
req->terminate = true;
}
virMutexUnlock(&pendingLearnReqLock);
return rc;
}
