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Add support for attach/detach/update net devices in config for LXC

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Wire up the attach/detach/update device APIs to support changing
of network interfaces in the persistent config file

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrange 2012-11-23 10:36:47 +00:00
parent d4e5359a1c
commit 74a909fef1
1 changed files with 63 additions and 3 deletions
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66
src/lxc/lxc_driver.c
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@ -2922,52 +2922,112 @@ cleanup:
static int
lxcDomainAttachDeviceConfig(virDomainDefPtr vmdef ATTRIBUTE_UNUSED,
lxcDomainAttachDeviceConfig(virDomainDefPtr vmdef,
virDomainDeviceDefPtr dev)
{
int ret = -1;
virDomainNetDefPtr net;
switch (dev->type) {
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
if (virDomainNetInsert(vmdef, net) < 0) {
virReportOOMError();
goto cleanup;
}
dev->data.net = NULL;
ret = 0;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent attach of device is not supported"));
break;
}
cleanup:
return ret;
}
static int
lxcDomainUpdateDeviceConfig(virDomainDefPtr vmdef ATTRIBUTE_UNUSED,
lxcDomainUpdateDeviceConfig(virDomainDefPtr vmdef,
virDomainDeviceDefPtr dev)
{
int ret = -1;
virDomainNetDefPtr net;
int idx;
char mac[VIR_MAC_STRING_BUFLEN];
switch (dev->type) {
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
idx = virDomainNetFindIdx(vmdef, net);
if (idx == -2) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("multiple devices matching mac address %s found"),
virMacAddrFormat(&net->mac, mac));
goto cleanup;
} else if (idx < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("no matching network device was found"));
goto cleanup;
}
virDomainNetDefFree(vmdef->nets[idx]);
vmdef->nets[idx] = net;
dev->data.net = NULL;
ret = 0;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent update of device is not supported"));
break;
}
cleanup:
return ret;
}
static int
lxcDomainDetachDeviceConfig(virDomainDefPtr vmDef ATTRIBUTE_UNUSED,
lxcDomainDetachDeviceConfig(virDomainDefPtr vmdef,
virDomainDeviceDefPtr dev)
{
int ret = -1;
virDomainNetDefPtr net;
int idx;
char mac[VIR_MAC_STRING_BUFLEN];
switch (dev->type) {
case VIR_DOMAIN_DEVICE_NET:
net = dev->data.net;
idx = virDomainNetFindIdx(vmdef, net);
if (idx == -2) {
virReportError(VIR_ERR_OPERATION_FAILED,
_("multiple devices matching mac address %s found"),
virMacAddrFormat(&net->mac, mac));
goto cleanup;
} else if (idx < 0) {
virReportError(VIR_ERR_OPERATION_FAILED, "%s",
_("no matching network device was found"));
goto cleanup;
}
/* this is guaranteed to succeed */
virDomainNetDefFree(virDomainNetRemove(vmdef, idx));
ret = 0;
break;
default:
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("persistent detach of device is not supported"));
break;
}
cleanup:
return ret;
}