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libvirt/src/conf/netdev_vport_profile_conf.c
Antoni Segura Puimedon a9fbe3b157 docs: schema and docs for the midonet virtualport type 
Midonet is an opensource virtual networking that over lays the IP
network between hypervisors. Currently, such networks can be made
with the openvswitch virtualport type.

This patch, defines the schema and documentation that will serve
as basis for the follow up patches that will add support to libvirt
for using Midonet virtual ports for its interfaces. The schema
definition requires that the port profile expresses its interfaceid
as part of the port profile. For that reason, this is part of the
patch too.

Signed-off-by: Antoni Segura Puimedon <toni+libvirt@midokura.com>
2015-03-17 13:09:05 -04:00

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/*
* Copyright (C) 2009-2014 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Authors:
* Stefan Berger <stefanb@us.ibm.com>
* Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include "netdev_vport_profile_conf.h"
#include "virerror.h"
#include "viralloc.h"
#include "virstring.h"
#define VIR_FROM_THIS VIR_FROM_NONE
virNetDevVPortProfilePtr
virNetDevVPortProfileParse(xmlNodePtr node, unsigned int flags)
{
char *virtPortType;
char *virtPortManagerID = NULL;
char *virtPortTypeID = NULL;
char *virtPortTypeIDVersion = NULL;
char *virtPortInstanceID = NULL;
char *virtPortProfileID = NULL;
char *virtPortInterfaceID = NULL;
virNetDevVPortProfilePtr virtPort = NULL;
xmlNodePtr cur = node->children;
if (VIR_ALLOC(virtPort) < 0)
return NULL;
if ((virtPortType = virXMLPropString(node, "type")) &&
(virtPort->virtPortType = virNetDevVPortTypeFromString(virtPortType)) <= 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("unknown virtualport type %s"), virtPortType);
goto error;
}
if ((virtPort->virtPortType == VIR_NETDEV_VPORT_PROFILE_NONE) &&
(flags & VIR_VPORT_XML_REQUIRE_TYPE)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing required virtualport type"));
goto error;
}
while (cur != NULL) {
if (xmlStrEqual(cur->name, BAD_CAST "parameters")) {
virtPortManagerID = virXMLPropString(cur, "managerid");
virtPortTypeID = virXMLPropString(cur, "typeid");
virtPortTypeIDVersion = virXMLPropString(cur, "typeidversion");
virtPortInstanceID = virXMLPropString(cur, "instanceid");
virtPortProfileID = virXMLPropString(cur, "profileid");
virtPortInterfaceID = virXMLPropString(cur, "interfaceid");
break;
}
cur = cur->next;
}
if (virtPortManagerID) {
unsigned int val;
if (virStrToLong_ui(virtPortManagerID, NULL, 0, &val)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("cannot parse value of managerid parameter"));
goto error;
}
if (val > 0xff) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("value of managerid out of range"));
goto error;
}
virtPort->managerID = (uint8_t)val;
virtPort->managerID_specified = true;
}
if (virtPortTypeID) {
unsigned int val;
if (virStrToLong_ui(virtPortTypeID, NULL, 0, &val)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("cannot parse value of typeid parameter"));
goto error;
}
if (val > 0xffffff) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("value for typeid out of range"));
goto error;
}
virtPort->typeID = (uint32_t)val;
virtPort->typeID_specified = true;
}
if (virtPortTypeIDVersion) {
unsigned int val;
if (virStrToLong_ui(virtPortTypeIDVersion, NULL, 0, &val)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("cannot parse value of typeidversion parameter"));
goto error;
}
if (val > 0xff) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("value of typeidversion out of range"));
goto error;
}
virtPort->typeIDVersion = (uint8_t)val;
virtPort->typeIDVersion_specified = true;
}
if (virtPortInstanceID) {
if (virUUIDParse(virtPortInstanceID, virtPort->instanceID) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("cannot parse instanceid parameter as a uuid"));
goto error;
}
virtPort->instanceID_specified = true;
}
if (virtPortProfileID &&
!virStrcpyStatic(virtPort->profileID, virtPortProfileID)) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("profileid parameter too long"));
goto error;
}
if (virtPortInterfaceID) {
if (virUUIDParse(virtPortInterfaceID, virtPort->interfaceID) < 0) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("cannot parse interfaceid parameter as a uuid"));
goto error;
}
virtPort->interfaceID_specified = true;
}
/* generate default instanceID/interfaceID if appropriate */
if (flags & VIR_VPORT_XML_GENERATE_MISSING_DEFAULTS) {
if (!virtPort->instanceID_specified &&
(virtPort->virtPortType == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
virtPort->virtPortType == VIR_NETDEV_VPORT_PROFILE_NONE)) {
if (virUUIDGenerate(virtPort->instanceID) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot generate a random uuid for instanceid"));
goto error;
}
virtPort->instanceID_specified = true;
}
if (!virtPort->interfaceID_specified &&
(virtPort->virtPortType == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH ||
virtPort->virtPortType == VIR_NETDEV_VPORT_PROFILE_NONE)) {
if (virUUIDGenerate(virtPort->interfaceID) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot generate a random uuid for interfaceid"));
goto error;
}
virtPort->interfaceID_specified = true;
}
}
/* check for required/unsupported attributes */
if ((flags & VIR_VPORT_XML_REQUIRE_ALL_ATTRIBUTES) &&
(virNetDevVPortProfileCheckComplete(virtPort, false) < 0)) {
goto error;
}
if (virNetDevVPortProfileCheckNoExtras(virtPort) < 0)
goto error;
cleanup:
VIR_FREE(virtPortManagerID);
VIR_FREE(virtPortTypeID);
VIR_FREE(virtPortTypeIDVersion);
VIR_FREE(virtPortInstanceID);
VIR_FREE(virtPortProfileID);
VIR_FREE(virtPortType);
VIR_FREE(virtPortInterfaceID);
return virtPort;
error:
VIR_FREE(virtPort);
goto cleanup;
}
int
virNetDevVPortProfileFormat(virNetDevVPortProfilePtr virtPort,
virBufferPtr buf)
{
enum virNetDevVPortProfile type;
bool noParameters;
if (!virtPort)
return 0;
noParameters = !(virtPort->managerID_specified ||
virtPort->typeID_specified ||
virtPort->typeIDVersion_specified ||
virtPort->instanceID_specified ||
virtPort->profileID[0] ||
virtPort->interfaceID_specified);
type = virtPort->virtPortType;
if (type == VIR_NETDEV_VPORT_PROFILE_NONE) {
if (noParameters)
return 0;
virBufferAddLit(buf, "<virtualport>\n");
} else {
if (noParameters) {
virBufferAsprintf(buf, "<virtualport type='%s'/>\n",
virNetDevVPortTypeToString(type));
return 0;
} else {
virBufferAsprintf(buf, "<virtualport type='%s'>\n",
virNetDevVPortTypeToString(type));
}
}
virBufferAdjustIndent(buf, 2);
virBufferAddLit(buf, "<parameters");
if (virtPort->managerID_specified &&
(type == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
type == VIR_NETDEV_VPORT_PROFILE_NONE)) {
virBufferAsprintf(buf, " managerid='%d'", virtPort->managerID);
}
if (virtPort->typeID_specified &&
(type == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
type == VIR_NETDEV_VPORT_PROFILE_NONE)) {
virBufferAsprintf(buf, " typeid='%d'", virtPort->typeID);
}
if (virtPort->typeIDVersion_specified &&
(type == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
type == VIR_NETDEV_VPORT_PROFILE_NONE)) {
virBufferAsprintf(buf, " typeidversion='%d'",
virtPort->typeIDVersion);
}
if (virtPort->instanceID_specified &&
(type == VIR_NETDEV_VPORT_PROFILE_8021QBG ||
type == VIR_NETDEV_VPORT_PROFILE_NONE)) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(virtPort->instanceID, uuidstr);
virBufferAsprintf(buf, " instanceid='%s'", uuidstr);
}
if (virtPort->interfaceID_specified &&
(type == VIR_NETDEV_VPORT_PROFILE_MIDONET ||
type == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH ||
type == VIR_NETDEV_VPORT_PROFILE_NONE)) {
char uuidstr[VIR_UUID_STRING_BUFLEN];
virUUIDFormat(virtPort->interfaceID, uuidstr);
virBufferAsprintf(buf, " interfaceid='%s'", uuidstr);
}
if (virtPort->profileID[0] &&
(type == VIR_NETDEV_VPORT_PROFILE_OPENVSWITCH ||
type == VIR_NETDEV_VPORT_PROFILE_8021QBH ||
type == VIR_NETDEV_VPORT_PROFILE_NONE)) {
virBufferAsprintf(buf, " profileid='%s'", virtPort->profileID);
}
virBufferAddLit(buf, "/>\n");
virBufferAdjustIndent(buf, -2);
virBufferAddLit(buf, "</virtualport>\n");
return 0;
}
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