int
libxlMakeNic(virDomainDefPtr def,
virDomainNetDefPtr l_nic,
libxl_device_nic *x_nic)
{
bool ioemu_nic = STREQ(def->os.type, "hvm");
/* TODO: Where is mtu stored?
*
* x_nics[i].mtu = 1492;
*/
libxl_device_nic_init(x_nic);
virMacAddrGetRaw(&l_nic->mac, x_nic->mac);
if (ioemu_nic)
x_nic->nictype = LIBXL_NIC_TYPE_VIF_IOEMU;
else
x_nic->nictype = LIBXL_NIC_TYPE_VIF;
if (l_nic->model) {
if (VIR_STRDUP(x_nic->model, l_nic->model) < 0)
return -1;
if (STREQ(l_nic->model, "netfront"))
x_nic->nictype = LIBXL_NIC_TYPE_VIF;
}
if (VIR_STRDUP(x_nic->ifname, l_nic->ifname) < 0)
return -1;
switch (l_nic->type) {
case VIR_DOMAIN_NET_TYPE_BRIDGE:
if (VIR_STRDUP(x_nic->bridge, l_nic->data.bridge.brname) < 0)
return -1;
/* fallthrough */
case VIR_DOMAIN_NET_TYPE_ETHERNET:
if (VIR_STRDUP(x_nic->script, l_nic->script) < 0)
return -1;
break;
default:
virReportError(VIR_ERR_INTERNAL_ERROR,
_("libxenlight does not support network device type %s"),
virDomainNetTypeToString(l_nic->type));
return -1;
}
return 0;
}
int
libxlMakeNic(virDomainDefPtr def,
virDomainNetDefPtr l_nic,
libxl_device_nic *x_nic)
{
bool ioemu_nic = STREQ(def->os.type, "hvm");
virDomainNetType actual_type = virDomainNetGetActualType(l_nic);
/* TODO: Where is mtu stored?
*
* x_nics[i].mtu = 1492;
*/
if (l_nic->script && !(actual_type == VIR_DOMAIN_NET_TYPE_BRIDGE ||
actual_type == VIR_DOMAIN_NET_TYPE_ETHERNET)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("specifying a script is only supported with "
"interface types bridge and ethernet"));
return -1;
}
libxl_device_nic_init(x_nic);
virMacAddrGetRaw(&l_nic->mac, x_nic->mac);
if (ioemu_nic)
x_nic->nictype = LIBXL_NIC_TYPE_VIF_IOEMU;
else
x_nic->nictype = LIBXL_NIC_TYPE_VIF;
if (l_nic->model) {
if (VIR_STRDUP(x_nic->model, l_nic->model) < 0)
return -1;
if (STREQ(l_nic->model, "netfront"))
x_nic->nictype = LIBXL_NIC_TYPE_VIF;
}
if (VIR_STRDUP(x_nic->ifname, l_nic->ifname) < 0)
return -1;
switch (actual_type) {
case VIR_DOMAIN_NET_TYPE_BRIDGE:
if (VIR_STRDUP(x_nic->bridge,
virDomainNetGetActualBridgeName(l_nic)) < 0)
return -1;
/* fallthrough */
case VIR_DOMAIN_NET_TYPE_ETHERNET:
if (VIR_STRDUP(x_nic->script, l_nic->script) < 0)
return -1;
break;
case VIR_DOMAIN_NET_TYPE_NETWORK:
{
bool fail = false;
char *brname = NULL;
virNetworkPtr network;
virConnectPtr conn;
virErrorPtr errobj;
if (!(conn = virConnectOpen("xen:///system")))
return -1;
if (!(network =
virNetworkLookupByName(conn, l_nic->data.network.name))) {
virObjectUnref(conn);
return -1;
}
if ((brname = virNetworkGetBridgeName(network))) {
if (VIR_STRDUP(x_nic->bridge, brname) < 0)
fail = true;
} else {
fail = true;
}
VIR_FREE(brname);
/* Preserve any previous failure */
errobj = virSaveLastError();
virNetworkFree(network);
virSetError(errobj);
virFreeError(errobj);
virObjectUnref(conn);
if (fail)
return -1;
break;
}
case VIR_DOMAIN_NET_TYPE_USER:
case VIR_DOMAIN_NET_TYPE_SERVER:
case VIR_DOMAIN_NET_TYPE_CLIENT:
case VIR_DOMAIN_NET_TYPE_MCAST:
case VIR_DOMAIN_NET_TYPE_INTERNAL:
case VIR_DOMAIN_NET_TYPE_DIRECT:
case VIR_DOMAIN_NET_TYPE_HOSTDEV:
case VIR_DOMAIN_NET_TYPE_LAST:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unsupported interface type %s"),
virDomainNetTypeToString(l_nic->type));
return -1;
}
return 0;
}
/*
* virNetDevBandwidthPlug:
* @brname: name of the bridge
* @net_bandwidth: QoS settings on @brname
* @ifmac: MAC of interface
* @bandwidth: QoS settings for interface
* @id: unique ID (MUST be greater than 2)
*
* Set bridge part of interface QoS settings, e.g. guaranteed
* bandwidth. @id is an unique ID (among @brname) from which
* other identifiers for class, qdisc and filter are derived.
* However, two classes were already set up (by
* virNetDevBandwidthSet). That's why this @id MUST be greater
* than 2. You may want to keep passed @id, as it is used later
* by virNetDevBandwidthUnplug.
*
* Returns:
* 0 if QoS set successfully
* -1 otherwise.
*/
int
virNetDevBandwidthPlug(const char *brname,
virNetDevBandwidthPtr net_bandwidth,
const virMacAddrPtr ifmac_ptr,
virNetDevBandwidthPtr bandwidth,
unsigned int id)
{
int ret = -1;
virCommandPtr cmd = NULL;
char *class_id = NULL;
char *qdisc_id = NULL;
char *filter_id = NULL;
char *floor = NULL;
char *ceil = NULL;
unsigned char ifmac[VIR_MAC_BUFLEN];
char ifmacStr[VIR_MAC_STRING_BUFLEN];
char *mac[2] = {NULL, NULL};
if (id <= 2) {
virReportError(VIR_ERR_INTERNAL_ERROR, _("Invalid class ID %d"), id);
return -1;
}
virMacAddrGetRaw(ifmac_ptr, ifmac);
virMacAddrFormat(ifmac_ptr, ifmacStr);
if (!net_bandwidth || !net_bandwidth->in) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Bridge '%s' has no QoS set, therefore "
"unable to set 'floor' on '%s'"),
brname, ifmacStr);
return -1;
}
if (virAsprintf(&class_id, "1:%x", id) < 0 ||
virAsprintf(&qdisc_id, "%x:", id) < 0 ||
virAsprintf(&filter_id, "%u", id) < 0 ||
virAsprintf(&mac[0], "0x%02x%02x%02x%02x", ifmac[2],
ifmac[3], ifmac[4], ifmac[5]) < 0 ||
virAsprintf(&mac[1], "0x%02x%02x", ifmac[0], ifmac[1]) < 0 ||
virAsprintf(&floor, "%llukbps", bandwidth->in->floor) < 0 ||
virAsprintf(&ceil, "%llukbps", net_bandwidth->in->peak ?
net_bandwidth->in->peak :
net_bandwidth->in->average) < 0) {
virReportOOMError();
goto cleanup;
}
cmd = virCommandNew(TC);
virCommandAddArgList(cmd, "class", "add", "dev", brname, "parent", "1:1",
"classid", class_id, "htb", "rate", floor,
"ceil", ceil, NULL);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
virCommandFree(cmd);
cmd = virCommandNew(TC);
virCommandAddArgList(cmd, "qdisc", "add", "dev", brname, "parent",
class_id, "handle", qdisc_id, "sfq", "perturb",
"10", NULL);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
virCommandFree(cmd);
cmd = virCommandNew(TC);
/* Okay, this not nice. But since libvirt does not know anything about
* interface IP address(es), and tc fw filter simply refuse to use ebtables
* marks, we need to use u32 selector to match MAC address.
* If libvirt will ever know something, remove this FIXME
*/
virCommandAddArgList(cmd, "filter", "add", "dev", brname, "protocol", "ip",
"prio", filter_id, "u32",
"match", "u16", "0x0800", "0xffff", "at", "-2",
"match", "u32", mac[0], "0xffffffff", "at", "-12",
"match", "u16", mac[1], "0xffff", "at", "-14",
"flowid", class_id, NULL);
if (virCommandRun(cmd, NULL) < 0)
goto cleanup;
ret = 0;
cleanup:
VIR_FREE(mac[1]);
VIR_FREE(mac[0]);
VIR_FREE(ceil);
VIR_FREE(floor);
VIR_FREE(filter_id);
VIR_FREE(qdisc_id);
VIR_FREE(class_id);
virCommandFree(cmd);
return ret;
}
