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[libvirt] [PATCH v7] vepa: parsing for 802.1Qb{g|h} XML



Below is David Alan's original patch with lots of changes. 

In particular, it now parses the following two XML descriptions, one
for 802.1Qbg and 802.1Qbh and stored the data internally. The actual
triggering of the switch setup protocol has not been implemented
here but the relevant code to do that should go into the functions 
associatePortProfileId() and disassociatePortProfileId().

   <interface type='direct'>
      <source dev='eth0.100' mode='vepa'/>
      <model type='virtio'/>
      <virtualport type='802.1Qbg'>
        <parameters managerid='12' typeid='0x123456' typeidversion='1'
         instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/>
      </virtualport>
      <filterref filter='clean-traffic'/>
    </interface>

    <interface type='direct'>
      <source dev='eth0.100' mode='vepa'/>
      <model type='virtio'/>
      <virtualport type='802.1Qbh'>
        <parameters profileid='my_profile'/>
      </virtualport>
    </interface>

I'd suggest to use this patch as a base for triggering the setup
protocol with the 802.1Qb{g|h} switch.

Changes from V6 to V7:
- make sure that the error code returned by openMacvtapTap() is a negative number
  in case the associatePortProfileId() function failed.

Changes from V5 to V6:
- renaming vsi in the XML to virtualport
- replace all occurrences of vsi in the source as well

Changes from V4 to V5:
- removing mode and MAC address parameters from the functions that
  will communicate with the hareware diretctly or indirectly

Changes from V3 to V4:
- moving the associate and disassociate functions to the end of the
  file for subsequent patches to easier make them generally available
  for export
- passing the macvtap interface name rather than the link device since
  this otherwise gives funny side effects when using netlink messages
  where IFLA_IFNAME and IFLA_ADDRESS are specified and the link dev
  all of a sudden gets the MAC address of the macvtap interface.
- Removing rc = -1 error indications in the case of 802.1Qbg|h setup in case
  we wanted to use hook scripts for the setup and so the setup doesn't fail
  here.

Changes from V2 to V3:
- if instance ID UUID is not supplied it will automatically be generated
  - adapted schema to make instance ID UUID optional
  - added test case

Some of the changes from V1 to V2:
- parser and XML generator have been separated into their own
  functions so they can be re-used elsewhere (passthrough case
  for example)
- Adapted XML parser and generator support the above shown type
  (802.1Qbg, 802.1Qbh).
- Adapted schema to above XML
- Adapted test XML to above XML
- Passing through the VM's UUID which seems to be necessary for
  802.1Qbh -- sorry no host UUID
- adding virtual function ID to association function, in case it's
  necessary to use (for SR-IOV)

Signed-off-by: Stefan Berger <stefanb us ibm com>

>From a945107f047c7cd71f9c1b74fd74c47d8cdc3670 Mon Sep 17 00:00:00 2001
From: David Allan <dallan redhat com>
Date: Fri, 12 Mar 2010 13:25:04 -0500
Subject: [PATCH 1/1] POC of port profile id support

* Modified schema per DanPB's feedback
* Added test for modified schema
---
 docs/schemas/domain.rng                |   69 ++++++++++++++
 src/conf/domain_conf.c                 |  155 +++++++++++++++++++++++++++++++++
 src/conf/domain_conf.h                 |   35 +++++++
 src/qemu/qemu_conf.c                   |   18 +--
 src/qemu/qemu_conf.h                   |    5 -
 src/qemu/qemu_driver.c                 |   17 +--
 src/util/macvtap.c                     |  151 +++++++++++++++++++++++++++-----
 src/util/macvtap.h                     |   10 +-
 tests/domainschemadata/portprofile.xml |   36 +++++++
 9 files changed, 446 insertions(+), 50 deletions(-)
 create mode 100644 tests/domainschemadata/portprofile.xml

Index: libvirt-acl/docs/schemas/domain.rng
===================================================================
--- libvirt-acl.orig/docs/schemas/domain.rng
+++ libvirt-acl/docs/schemas/domain.rng
@@ -817,6 +817,9 @@
               </optional>
               <empty/>
             </element>
+            <optional>
+              <ref name="virtualPortProfile"/>
+            </optional>
             <ref name="interface-options"/>
           </interleave>
         </group>
@@ -902,6 +905,45 @@
       </optional>
     </interleave>
   </define>
+  <define name="virtualPortProfile">
+    <choice>
+      <group>
+        <element name="virtualport">
+          <attribute name="type">
+            <value>802.1Qbg</value>
+          </attribute>
+          <element name="parameters">
+            <attribute name="managerid">
+              <ref name="uint8range"/>
+            </attribute>
+            <attribute name="typeid">
+              <ref name="uint24range"/>
+            </attribute>
+            <attribute name="typeidversion">
+              <ref name="uint8range"/>
+            </attribute>
+            <optional>
+              <attribute name="instanceid">
+                <ref name="UUID"/>
+              </attribute>
+            </optional>
+          </element>
+        </element>
+      </group>
+      <group>
+        <element name="virtualport">
+          <attribute name="type">
+            <value>802.1Qbh</value>
+          </attribute>
+          <element name="parameters">
+            <attribute name="profileid">
+              <ref name="virtualPortProfileID"/>
+            </attribute>
+          </element>
+        </element>
+      </group>
+    </choice>
+  </define>
   <!--
       An emulator description is just a path to the binary used for the task
     -->
@@ -1769,4 +1811,31 @@
       <param name="pattern">[a-zA-Z0-9_\.:]+</param>
     </data>
   </define>
+  <define name="uint8range">
+    <choice>
+      <data type="string">
+        <param name="pattern">0x[0-9a-fA-F]{1,2}</param>
+      </data>
+      <data type="int">
+        <param name="minInclusive">0</param>
+        <param name="maxInclusive">255</param>
+      </data>
+    </choice>
+  </define>
+  <define name="uint24range">
+    <choice>
+      <data type="string">
+        <param name="pattern">0x[0-9a-fA-F]{1,6}</param>
+      </data>
+      <data type="int">
+        <param name="minInclusive">0</param>
+        <param name="maxInclusive">16777215</param>
+      </data>
+    </choice>
+  </define>
+  <define name="virtualPortProfileID">
+    <data type="string">
+      <param name="maxLength">39</param>
+    </data>
+  </define>
 </grammar>
Index: libvirt-acl/src/conf/domain_conf.c
===================================================================
--- libvirt-acl.orig/src/conf/domain_conf.c
+++ libvirt-acl/src/conf/domain_conf.c
@@ -242,6 +242,11 @@ VIR_ENUM_IMPL(virDomainNetdevMacvtap, VI
               "private",
               "bridge")
 
+VIR_ENUM_IMPL(virVirtualPort, VIR_VIRTUALPORT_TYPE_LAST,
+              "none",
+              "802.1Qbg",
+              "802.1Qbh")
+
 VIR_ENUM_IMPL(virDomainClockOffset, VIR_DOMAIN_CLOCK_OFFSET_LAST,
               "utc",
               "localtime",
@@ -1807,6 +1812,145 @@ cleanup:
 }
 
 
+static void
+virVirtualPortProfileDefParseXML(xmlNodePtr node,
+                                virVirtualPortProfileDefPtr virtPort)
+{
+    char *virtPortType;
+    char *virtPortManagerID = NULL;
+    char *virtPortTypeID = NULL;
+    char *virtPortTypeIDVersion = NULL;
+    char *virtPortInstanceID = NULL;
+    char *virtPortProfileID = NULL;
+    xmlNodePtr cur = node->children;
+
+    virtPortType = virXMLPropString(node, "type");
+    if (!virtPortType)
+        return;
+
+    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");
+
+            break;
+        }
+
+        cur = cur->next;
+    }
+
+    virtPort->virtPortType = VIR_VIRTUALPORT_NONE;
+
+    switch (virVirtualPortTypeFromString(virtPortType)) {
+
+    case VIR_VIRTUALPORT_8021QBG:
+        if (virtPortManagerID     != NULL && virtPortTypeID     != NULL &&
+            virtPortTypeIDVersion != NULL) {
+            unsigned int val;
+
+            if ((virStrToLong_ui(virtPortManagerID, NULL, 10, &val) &&
+                 virStrToLong_ui(virtPortManagerID, NULL, 16, &val)   ) ||
+                val > 0xff)
+                break;
+
+            virtPort->u.virtPort8021Qbg.managerID = (uint8_t)val;
+
+            if ((virStrToLong_ui(virtPortTypeID, NULL, 10, &val) &&
+                 virStrToLong_ui(virtPortTypeID, NULL, 16, &val)   ) ||
+                val > 0xffffff)
+                break;
+
+            virtPort->u.virtPort8021Qbg.typeID = (uint32_t)val;
+
+            if ((virStrToLong_ui(virtPortTypeIDVersion, NULL, 10, &val) &&
+                 virStrToLong_ui(virtPortTypeIDVersion, NULL, 16, &val)   ) ||
+                val > 0xff)
+                break;
+
+            virtPort->u.virtPort8021Qbg.typeIDVersion = (uint8_t)val;
+
+            if (virtPortInstanceID != NULL) {
+                if (virUUIDParse(virtPortInstanceID, virtPort->u.virtPort8021Qbg.instanceID))
+                    break;
+            } else {
+                if (virUUIDGenerate(virtPort->u.virtPort8021Qbg.instanceID))
+                    break;
+            }
+
+            virtPort->virtPortType = VIR_VIRTUALPORT_8021QBG;
+        }
+    break;
+
+    case VIR_VIRTUALPORT_8021QBH:
+        if (virtPortProfileID != NULL) {
+            if (virStrcpyStatic(virtPort->u.virtPort8021Qbh.profileID,
+                                virtPortProfileID) != NULL)
+                virtPort->virtPortType = VIR_VIRTUALPORT_8021QBH;
+        }
+    break;
+
+
+    default:
+    case VIR_VIRTUALPORT_NONE:
+    case VIR_VIRTUALPORT_TYPE_LAST:
+    break;
+    }
+
+    VIR_FREE(virtPortManagerID);
+    VIR_FREE(virtPortTypeID);
+    VIR_FREE(virtPortTypeIDVersion);
+    VIR_FREE(virtPortInstanceID);
+    VIR_FREE(virtPortProfileID);
+    VIR_FREE(virtPortType);
+}
+
+
+static void
+virVirtualPortProfileFormat(virBufferPtr buf, virVirtualPortProfileDefPtr virtPort,
+                            const char *indent)
+{
+    char uuidstr[VIR_UUID_STRING_BUFLEN];
+
+    if (virtPort->virtPortType == VIR_VIRTUALPORT_NONE)
+        return;
+
+    virBufferVSprintf(buf, "%s<virtualport type='%s'>\n",
+                      indent, virVirtualPortTypeToString(virtPort->virtPortType));
+
+    switch (virtPort->virtPortType) {
+    case VIR_VIRTUALPORT_NONE:
+    case VIR_VIRTUALPORT_TYPE_LAST:
+        break;
+
+    case VIR_VIRTUALPORT_8021QBG:
+        virUUIDFormat(virtPort->u.virtPort8021Qbg.instanceID,
+                      uuidstr);
+        virBufferVSprintf(buf,
+                          "%s  <parameters managerid='%d' typeid='%d' "
+                          "typeidversion='%d' instanceid='%s'/>\n",
+                          indent,
+                          virtPort->u.virtPort8021Qbg.managerID,
+                          virtPort->u.virtPort8021Qbg.typeID,
+                          virtPort->u.virtPort8021Qbg.typeIDVersion,
+                          uuidstr);
+        break;
+
+    case VIR_VIRTUALPORT_8021QBH:
+        virBufferVSprintf(buf,
+                          "%s  <parameters profileid='%s'/>\n",
+                          indent,
+                          virtPort->u.virtPort8021Qbh.profileID);
+        break;
+    }
+
+    virBufferVSprintf(buf, "%s</virtualport>\n", indent);
+}
+
+
 /* Parse the XML definition for a network interface
  * @param node XML nodeset to parse for net definition
  * @return 0 on success, -1 on failure
@@ -1832,6 +1976,8 @@ virDomainNetDefParseXML(virCapsPtr caps,
     char *devaddr = NULL;
     char *mode = NULL;
     virNWFilterHashTablePtr filterparams = NULL;
+    virVirtualPortProfileDef virtPort;
+    bool virtPortParsed = false;
 
     if (VIR_ALLOC(def) < 0) {
         virReportOOMError();
@@ -1873,6 +2019,11 @@ virDomainNetDefParseXML(virCapsPtr caps,
                        xmlStrEqual(cur->name, BAD_CAST "source")) {
                 dev  = virXMLPropString(cur, "dev");
                 mode = virXMLPropString(cur, "mode");
+            } else if ((virtPortParsed == false) &&
+                       (def->type == VIR_DOMAIN_NET_TYPE_DIRECT) &&
+                       xmlStrEqual(cur->name, BAD_CAST "virtualport")) {
+                virVirtualPortProfileDefParseXML(cur, &virtPort);
+                virtPortParsed = true;
             } else if ((network == NULL) &&
                        ((def->type == VIR_DOMAIN_NET_TYPE_SERVER) ||
                         (def->type == VIR_DOMAIN_NET_TYPE_CLIENT) ||
@@ -2048,6 +2199,8 @@ virDomainNetDefParseXML(virCapsPtr caps,
         } else
             def->data.direct.mode = VIR_DOMAIN_NETDEV_MACVTAP_MODE_VEPA;
 
+        def->data.direct.virtPortProfile = virtPort;
+
         def->data.direct.linkdev = dev;
         dev = NULL;
 
@@ -5140,6 +5293,8 @@ virDomainNetDefFormat(virBufferPtr buf,
         virBufferVSprintf(buf, " mode='%s'",
                    virDomainNetdevMacvtapTypeToString(def->data.direct.mode));
         virBufferAddLit(buf, "/>\n");
+        virVirtualPortProfileFormat(buf, &def->data.direct.virtPortProfile,
+                            "      ");
         break;
 
     case VIR_DOMAIN_NET_TYPE_USER:
Index: libvirt-acl/src/conf/domain_conf.h
===================================================================
--- libvirt-acl.orig/src/conf/domain_conf.h
+++ libvirt-acl/src/conf/domain_conf.h
@@ -259,6 +259,39 @@ enum virDomainNetdevMacvtapType {
 };
 
 
+enum virVirtualPortType {
+    VIR_VIRTUALPORT_NONE,
+    VIR_VIRTUALPORT_8021QBG,
+    VIR_VIRTUALPORT_8021QBH,
+
+    VIR_VIRTUALPORT_TYPE_LAST,
+};
+
+# ifdef IFLA_VF_PORT_PROFILE_MAX
+#  define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX IFLA_VF_PORT_PROFILE_MAX
+# else
+#  define LIBVIRT_IFLA_VF_PORT_PROFILE_MAX 40
+# endif
+
+/* profile data for macvtap (VEPA) */
+typedef struct _virVirtualPortProfileDef virVirtualPortProfileDef;
+typedef virVirtualPortProfileDef *virVirtualPortProfileDefPtr;
+struct _virVirtualPortProfileDef {
+    enum virVirtualPortType   virtPortType;
+    union {
+        struct {
+            uint8_t       managerID;
+            uint32_t      typeID; // 24 bit valid
+            uint8_t       typeIDVersion;
+            unsigned char instanceID[VIR_UUID_BUFLEN];
+        } virtPort8021Qbg;
+        struct {
+            char          profileID[LIBVIRT_IFLA_VF_PORT_PROFILE_MAX];
+        } virtPort8021Qbh;
+    } u;
+};
+
+
 /* Stores the virtual network interface configuration */
 typedef struct _virDomainNetDef virDomainNetDef;
 typedef virDomainNetDef *virDomainNetDefPtr;
@@ -290,6 +323,7 @@ struct _virDomainNetDef {
         struct {
             char *linkdev;
             int mode;
+            virVirtualPortProfileDef virtPortProfile;
         } direct;
     } data;
     char *ifname;
@@ -1089,6 +1123,7 @@ VIR_ENUM_DECL(virDomainSeclabel)
 VIR_ENUM_DECL(virDomainClockOffset)
 
 VIR_ENUM_DECL(virDomainNetdevMacvtap)
+VIR_ENUM_DECL(virVirtualPort)
 
 VIR_ENUM_DECL(virDomainTimerName)
 VIR_ENUM_DECL(virDomainTimerTrack)
Index: libvirt-acl/src/util/macvtap.c
===================================================================
--- libvirt-acl.orig/src/util/macvtap.c
+++ libvirt-acl/src/util/macvtap.c
@@ -43,6 +43,7 @@
 
 # include "util.h"
 # include "memory.h"
+# include "logging.h"
 # include "macvtap.h"
 # include "interface.h"
 # include "conf/domain_conf.h"
@@ -57,6 +58,16 @@
 # define MACVTAP_NAME_PREFIX	"macvtap"
 # define MACVTAP_NAME_PATTERN	"macvtap%d"
 
+
+static int associatePortProfileId(const char *macvtap_ifname,
+                                  const virVirtualPortProfileDefPtr virtPort,
+                                  int vf,
+                                  const unsigned char *vmuuid);
+
+static int disassociatePortProfileId(const char *macvtap_ifname,
+                                     const virVirtualPortProfileDefPtr virtPort);
+
+
 static int nlOpen(void)
 {
     int fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_ROUTE);
@@ -567,39 +578,38 @@ configMacvtapTap(int tapfd, int vnet_hdr
 
     return 0;
 }
-
-
 /**
  * openMacvtapTap:
  * Create an instance of a macvtap device and open its tap character
  * device.
  * @tgifname: Interface name that the macvtap is supposed to have. May
  *    be NULL if this function is supposed to choose a name
- * @macaddress: The MAC address for the macvtap device
- * @linkdev: The interface name of the NIC to connect to the external bridge
- * @mode_str: String describing the mode. Valid are 'bridge', 'vepa' and
- *     'private'.
+ * @net: pointer to the virDomainNetDef object describing the direct
+ *       type if an interface
  * @res_ifname: Pointer to a string pointer where the actual name of the
  *     interface will be stored into if everything succeeded. It is up
  *     to the caller to free the string.
+ * @vnet_hdr: Whether to enable IFF_VNET_HDR on the interface
+ * @vmuuid: The (raw) UUID of the VM
  *
  * Returns file descriptor of the tap device in case of success,
  * negative value otherwise with error reported.
  *
+ * Open a macvtap device and trigger the switch setup protocol
+ * if valid port profile parameters were provided.
  */
 int
 openMacvtapTap(const char *tgifname,
-               const unsigned char *macaddress,
-               const char *linkdev,
-               int mode,
+               virDomainNetDefPtr net,
                char **res_ifname,
-               int vnet_hdr)
+               int vnet_hdr,
+               const unsigned char *vmuuid)
 {
     const char *type = "macvtap";
     int c, rc;
     char ifname[IFNAMSIZ];
     int retries, do_retry = 0;
-    uint32_t macvtapMode = macvtapModeFromInt(mode);
+    uint32_t macvtapMode = macvtapModeFromInt(net->data.direct.mode);
     const char *cr_ifname;
     int ifindex;
 
@@ -616,7 +626,7 @@ openMacvtapTap(const char *tgifname,
             return -1;
         }
         cr_ifname = tgifname;
-        rc = link_add(type, macaddress, 6, tgifname, linkdev,
+        rc = link_add(type, net->mac, 6, tgifname, net->data.direct.linkdev,
                       macvtapMode, &do_retry);
         if (rc)
             return -1;
@@ -626,7 +636,8 @@ create_name:
         for (c = 0; c < 8192; c++) {
             snprintf(ifname, sizeof(ifname), MACVTAP_NAME_PATTERN, c);
             if (ifaceGetIndex(false, ifname, &ifindex) == ENODEV) {
-                rc = link_add(type, macaddress, 6, ifname, linkdev,
+                rc = link_add(type, net->mac, 6, ifname,
+                              net->data.direct.linkdev,
                               macvtapMode, &do_retry);
                 if (rc == 0)
                     break;
@@ -639,6 +650,14 @@ create_name:
         cr_ifname = ifname;
     }
 
+    if (associatePortProfileId(cr_ifname,
+                               &net->data.direct.virtPortProfile,
+                               -1,
+                               vmuuid) != 0) {
+        rc = -1;
+        goto link_del_exit;
+    }
+
     rc = ifaceUp(cr_ifname);
     if (rc != 0) {
         virReportSystemError(errno,
@@ -647,7 +666,7 @@ create_name:
                              "MAC address"),
                              cr_ifname);
         rc = -1;
-        goto link_del_exit;
+        goto disassociate_exit;
     }
 
     rc = openTap(cr_ifname, 10);
@@ -656,14 +675,18 @@ create_name:
         if (configMacvtapTap(rc, vnet_hdr) < 0) {
             close(rc);
             rc = -1;
-            goto link_del_exit;
+            goto disassociate_exit;
         }
         *res_ifname = strdup(cr_ifname);
     } else
-        goto link_del_exit;
+        goto disassociate_exit;
 
     return rc;
 
+disassociate_exit:
+    disassociatePortProfileId(cr_ifname,
+                              &net->data.direct.virtPortProfile);
+
 link_del_exit:
     link_del(cr_ifname);
 
@@ -673,14 +696,102 @@ link_del_exit:
 
 /**
  * delMacvtap:
- * @ifname : The name of the macvtap interface
+ * @net: pointer to virDomainNetDef object
  *
- * Delete an interface given its name.
+ * Delete an interface given its name. Disassociate
+ * it with the switch if port profile parameters
+ * were provided.
  */
 void
-delMacvtap(const char *ifname)
+delMacvtap(virDomainNetDefPtr net)
 {
-    link_del(ifname);
+    if (net->ifname) {
+        disassociatePortProfileId(net->ifname,
+                                  &net->data.direct.virtPortProfile);
+        link_del(net->ifname);
+    }
 }
 
 #endif
+
+
+/**
+ * associatePortProfile
+ *
+ * @macvtap_ifname: The name of the macvtap device
+ * @virtPort: pointer to the object holding port profile parameters
+ * @vf: virtual function number, -1 if to be ignored
+ * @vmuuid : the UUID of the virtual machine
+ *
+ * Associate a port on a swtich with a profile. This function
+ * may notify a kernel driver or an external daemon to run
+ * the setup protocol. If profile parameters were not supplied
+ * by the user, then this function returns without doing
+ * anything.
+ *
+ * Returns 0 in case of success, != 0 otherwise with error
+ * having been reported.
+ */
+static int
+associatePortProfileId(const char *macvtap_ifname,
+                       const virVirtualPortProfileDefPtr virtPort,
+                       int vf,
+                       const unsigned char *vmuuid)
+{
+    int rc = 0;
+    VIR_DEBUG("Associating port profile '%p' on link device '%s'",
+              virtPort, macvtap_ifname);
+    (void)vf;
+    (void)vmuuid;
+
+    switch (virtPort->virtPortType) {
+    case VIR_VIRTUALPORT_NONE:
+    case VIR_VIRTUALPORT_TYPE_LAST:
+        break;
+
+    case VIR_VIRTUALPORT_8021QBG:
+
+        break;
+
+    case VIR_VIRTUALPORT_8021QBH:
+
+        break;
+    }
+
+    return rc;
+}
+
+
+/**
+ * disassociatePortProfile
+ *
+ * @macvtap_ifname: The name of the macvtap device
+ * @virtPort: point to object holding port profile parameters
+ *
+ * Returns 0 in case of success, != 0 otherwise with error
+ * having been reported.
+ */
+static int
+disassociatePortProfileId(const char *macvtap_ifname,
+                          const virVirtualPortProfileDefPtr virtPort)
+{
+    int rc = 0;
+    VIR_DEBUG("Disassociating port profile id '%p' on link device '%s' ",
+              virtPort, macvtap_ifname);
+
+    switch (virtPort->virtPortType) {
+    case VIR_VIRTUALPORT_NONE:
+    case VIR_VIRTUALPORT_TYPE_LAST:
+        break;
+
+    case VIR_VIRTUALPORT_8021QBG:
+
+        break;
+
+    case VIR_VIRTUALPORT_8021QBH:
+
+        break;
+    }
+
+    return rc;
+}
Index: libvirt-acl/src/util/macvtap.h
===================================================================
--- libvirt-acl.orig/src/util/macvtap.h
+++ libvirt-acl/src/util/macvtap.h
@@ -27,15 +27,15 @@
 # if defined(WITH_MACVTAP)
 
 #  include "internal.h"
+#  include "conf/domain_conf.h"
 
 int openMacvtapTap(const char *ifname,
-                   const unsigned char *macaddress,
-                   const char *linkdev,
-                   int mode,
+                   virDomainNetDefPtr net,
                    char **res_ifname,
-                   int vnet_hdr);
+                   int vnet_hdr,
+                   const unsigned char *vmuuid);
 
-void delMacvtap(const char *ifname);
+void delMacvtap(virDomainNetDefPtr net);
 
 # endif /* WITH_MACVTAP */
 
Index: libvirt-acl/tests/domainschemadata/portprofile.xml
===================================================================
--- /dev/null
+++ libvirt-acl/tests/domainschemadata/portprofile.xml
@@ -0,0 +1,36 @@
+<domain type='lxc'>
+  <name>portprofile</name>
+  <uuid>00000000-0000-0000-0000-000000000000</uuid>
+  <memory>1048576</memory>
+    <os>
+        <type>exe</type>
+        <init>/sh</init>
+    </os>
+  <devices>
+    <interface type='direct'>
+      <source dev='eth0' mode='vepa'/>
+      <virtualport type='802.1Qbg'>
+        <parameters managerid='12' typeid='1193046' typeidversion='1'
+                    instanceid='fa9b7fff-b0a0-4893-8e0e-beef4ff18f8f'/>
+      </virtualport>
+    </interface>
+    <interface type='direct'>
+      <source dev='eth0' mode='vepa'/>
+      <virtualport type='802.1Qbg'>
+        <parameters managerid='12' typeid='1193046' typeidversion='1'/>
+      </virtualport>
+    </interface>
+    <interface type='direct'>
+      <source dev='eth0' mode='vepa'/>
+      <virtualport type='802.1Qbh'>
+        <parameters profileid='my_profile'/>
+      </virtualport>
+    </interface>
+    <interface type='direct'>
+      <source dev='eth0' mode='vepa'/>
+    </interface>
+    <interface type='direct'>
+      <source dev='eth0' mode='vepa'/>
+    </interface>
+  </devices>
+</domain>
Index: libvirt-acl/src/qemu/qemu_conf.h
===================================================================
--- libvirt-acl.orig/src/qemu/qemu_conf.h
+++ libvirt-acl/src/qemu/qemu_conf.h
@@ -274,9 +274,8 @@ qemudOpenVhostNet(virDomainNetDefPtr net
 int qemudPhysIfaceConnect(virConnectPtr conn,
                           struct qemud_driver *driver,
                           virDomainNetDefPtr net,
-                          char *linkdev,
-                          int brmode,
-                          unsigned long long qemuCmdFlags);
+                          unsigned long long qemuCmdFlags,
+                          const unsigned char *vmuuid);
 
 int         qemudProbeMachineTypes      (const char *binary,
                                          virCapsGuestMachinePtr **machines,
Index: libvirt-acl/src/qemu/qemu_driver.c
===================================================================
--- libvirt-acl.orig/src/qemu/qemu_driver.c
+++ libvirt-acl/src/qemu/qemu_driver.c
@@ -3702,10 +3702,8 @@ static void qemudShutdownVMDaemon(struct
     def = vm->def;
     for (i = 0; i < def->nnets; i++) {
         virDomainNetDefPtr net = def->nets[i];
-        if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
-            if (net->ifname)
-                delMacvtap(net->ifname);
-        }
+        if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT)
+            delMacvtap(net);
     }
 #endif
 
@@ -7464,9 +7462,8 @@ static int qemudDomainAttachNetDevice(vi
         }
 
         if ((tapfd = qemudPhysIfaceConnect(conn, driver, net,
-                                           net->data.direct.linkdev,
-                                           net->data.direct.mode,
-                                           qemuCmdFlags)) < 0)
+                                           qemuCmdFlags,
+                                           vm->def->uuid)) < 0)
             return -1;
     }
 
@@ -8509,10 +8506,8 @@ qemudDomainDetachNetDevice(struct qemud_
     virNWFilterTearNWFilter(detach);
 
 #if WITH_MACVTAP
-    if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
-        if (detach->ifname)
-            delMacvtap(detach->ifname);
-    }
+    if (detach->type == VIR_DOMAIN_NET_TYPE_DIRECT)
+        delMacvtap(detach);
 #endif
 
     if ((driver->macFilter) && (detach->ifname != NULL)) {
Index: libvirt-acl/src/qemu/qemu_conf.c
===================================================================
--- libvirt-acl.orig/src/qemu/qemu_conf.c
+++ libvirt-acl/src/qemu/qemu_conf.c
@@ -1470,9 +1470,8 @@ int
 qemudPhysIfaceConnect(virConnectPtr conn,
                       struct qemud_driver *driver,
                       virDomainNetDefPtr net,
-                      char *linkdev,
-                      int brmode,
-                      unsigned long long qemuCmdFlags)
+                      unsigned long long qemuCmdFlags,
+                      const unsigned char *vmuuid)
 {
     int rc;
 #if WITH_MACVTAP
@@ -1484,8 +1483,7 @@ qemudPhysIfaceConnect(virConnectPtr conn
         net->model && STREQ(net->model, "virtio"))
         vnet_hdr = 1;
 
-    rc = openMacvtapTap(net->ifname, net->mac, linkdev, brmode,
-                        &res_ifname, vnet_hdr);
+    rc = openMacvtapTap(net->ifname, net, &res_ifname, vnet_hdr, vmuuid);
     if (rc >= 0) {
         VIR_FREE(net->ifname);
         net->ifname = res_ifname;
@@ -1505,17 +1503,16 @@ qemudPhysIfaceConnect(virConnectPtr conn
             if (err) {
                 close(rc);
                 rc = -1;
-                delMacvtap(net->ifname);
+                delMacvtap(net);
             }
         }
     }
 #else
     (void)conn;
     (void)net;
-    (void)linkdev;
-    (void)brmode;
     (void)qemuCmdFlags;
     (void)driver;
+    (void)vmuuid;
     qemuReportError(VIR_ERR_INTERNAL_ERROR,
                     "%s", _("No support for macvtap device"));
     rc = -1;
@@ -4135,9 +4132,8 @@ int qemudBuildCommandLine(virConnectPtr 
                     goto no_memory;
             } else if (net->type == VIR_DOMAIN_NET_TYPE_DIRECT) {
                 int tapfd = qemudPhysIfaceConnect(conn, driver, net,
-                                                  net->data.direct.linkdev,
-                                                  net->data.direct.mode,
-                                                  qemuCmdFlags);
+                                                  qemuCmdFlags,
+                                                  def->uuid);
                 if (tapfd < 0)
                     goto error;
 


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