conf,qemu: Replace iscsisrc fields with virStorageSourcePtr

Rather than picking apart the two pieces we need/want (path, hosts,
and auth)- let's allocate/use a virStorageSourcePtr for iSCSI storage.

The end result is that qemuBuildSCSIiSCSIHostdevDrvStr doesn't need
to "fake" one for the qemuBuildNetworkDriveStr call.

src/conf/domain_conf.c

@@ -2507,10 +2507,9 @@ virDomainHostdevSubsysSCSIiSCSIClear(virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc
 {
     if (!iscsisrc)
         return;
-    VIR_FREE(iscsisrc->path);
-    virStorageNetHostDefFree(iscsisrc->nhosts, iscsisrc->hosts);
-    virStorageAuthDefFree(iscsisrc->auth);
-    iscsisrc->auth = NULL;
+
+    virStorageSourceFree(iscsisrc->src);
+    iscsisrc->src = NULL;
 }
 
 
@@ -4397,7 +4396,7 @@ virDomainHostdevDefPostParse(virDomainHostdevDefPtr dev,
         if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
             virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
 
-            if (virDomainPostParseCheckISCSIPath(&iscsisrc->path) < 0)
+            if (virDomainPostParseCheckISCSIPath(&iscsisrc->src->path) < 0)
                 return -1;
         }
 
@@ -7163,24 +7162,29 @@ virDomainHostdevSubsysSCSIiSCSIDefParseXML(xmlNodePtr sourcenode,
     virStorageAuthDefPtr authdef = NULL;
     virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &def->u.iscsi;
 
-    /* Similar to virDomainDiskSourceParse for a VIR_STORAGE_TYPE_NETWORK */
+    /* For the purposes of command line creation, this needs to look
+     * like a disk storage source */
+    if (VIR_ALLOC(iscsisrc->src) < 0)
+        return -1;
+    iscsisrc->src->type = VIR_STORAGE_TYPE_NETWORK;
+    iscsisrc->src->protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI;
 
-    if (!(iscsisrc->path = virXMLPropString(sourcenode, "name"))) {
+    if (!(iscsisrc->src->path = virXMLPropString(sourcenode, "name"))) {
         virReportError(VIR_ERR_XML_ERROR, "%s",
                        _("missing iSCSI hostdev source path name"));
         goto cleanup;
     }
 
-    if (virDomainStorageNetworkParseHosts(sourcenode, &iscsisrc->hosts,
-                                          &iscsisrc->nhosts) < 0)
+    if (virDomainStorageNetworkParseHosts(sourcenode, &iscsisrc->src->hosts,
+                                          &iscsisrc->src->nhosts) < 0)
         goto cleanup;
 
-    if (iscsisrc->nhosts < 1) {
+    if (iscsisrc->src->nhosts < 1) {
         virReportError(VIR_ERR_XML_ERROR, "%s",
                        _("missing the host address for the iSCSI hostdev"));
         goto cleanup;
     }
-    if (iscsisrc->nhosts > 1) {
+    if (iscsisrc->src->nhosts > 1) {
         virReportError(VIR_ERR_XML_ERROR, "%s",
                        _("only one source host address may be specified "
                          "for the iSCSI hostdev"));
@@ -7206,7 +7210,7 @@ virDomainHostdevSubsysSCSIiSCSIDefParseXML(xmlNodePtr sourcenode,
                                authdef->secrettype);
                 goto cleanup;
             }
-            iscsisrc->auth = authdef;
+            iscsisrc->src->auth = authdef;
             authdef = NULL;
         }
         cur = cur->next;
@@ -15715,9 +15719,9 @@ virDomainHostdevMatchSubsysSCSIiSCSI(virDomainHostdevDefPtr first,
     virDomainHostdevSubsysSCSIiSCSIPtr second_iscsisrc =
         &second->source.subsys.u.scsi.u.iscsi;
 
-    if (STREQ(first_iscsisrc->hosts[0].name, second_iscsisrc->hosts[0].name) &&
-        first_iscsisrc->hosts[0].port == second_iscsisrc->hosts[0].port &&
-        STREQ(first_iscsisrc->path, second_iscsisrc->path))
+    if (STREQ(first_iscsisrc->src->hosts[0].name, second_iscsisrc->src->hosts[0].name) &&
+        first_iscsisrc->src->hosts[0].port == second_iscsisrc->src->hosts[0].port &&
+        STREQ(first_iscsisrc->src->path, second_iscsisrc->src->path))
         return 1;
     return 0;
 }
@@ -23095,7 +23099,7 @@ virDomainHostdevDefFormatSubsys(virBufferPtr buf,
             virDomainHostdevSubsysSCSIProtocolTypeToString(scsisrc->protocol);
 
         virBufferAsprintf(buf, " protocol='%s' name='%s'",
-                          protocol, iscsisrc->path);
+                          protocol, iscsisrc->src->path);
     }
 
     if (def->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI_HOST) {
@@ -23147,9 +23151,9 @@ virDomainHostdevDefFormatSubsys(virBufferPtr buf,
     case VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI:
         if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI) {
             virBufferAddLit(buf, "<host");
-            virBufferEscapeString(buf, " name='%s'", iscsisrc->hosts[0].name);
-            if (iscsisrc->hosts[0].port)
-                virBufferAsprintf(buf, " port='%u'", iscsisrc->hosts[0].port);
+            virBufferEscapeString(buf, " name='%s'", iscsisrc->src->hosts[0].name);
+            if (iscsisrc->src->hosts[0].port)
+                virBufferAsprintf(buf, " port='%u'", iscsisrc->src->hosts[0].port);
             virBufferAddLit(buf, "/>\n");
         } else {
             virBufferAsprintf(buf, "<adapter name='%s'/>\n",
@@ -23176,8 +23180,8 @@ virDomainHostdevDefFormatSubsys(virBufferPtr buf,
 
     if (def->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI &&
         scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI &&
-        iscsisrc->auth) {
-        if (virStorageAuthDefFormat(buf, iscsisrc->auth) < 0)
+        iscsisrc->src->auth) {
+        if (virStorageAuthDefFormat(buf, iscsisrc->src->auth) < 0)
             return -1;
     }
 

src/conf/domain_conf.h

@@ -357,10 +357,7 @@ struct _virDomainHostdevSubsysSCSIHost {
 typedef struct _virDomainHostdevSubsysSCSIiSCSI virDomainHostdevSubsysSCSIiSCSI;
 typedef virDomainHostdevSubsysSCSIiSCSI *virDomainHostdevSubsysSCSIiSCSIPtr;
 struct _virDomainHostdevSubsysSCSIiSCSI {
-    char *path;
-    size_t nhosts;
-    virStorageNetHostDefPtr hosts;
-    virStorageAuthDefPtr auth;
+    virStorageSourcePtr src;
 };
 
 typedef struct _virDomainHostdevSubsysSCSI virDomainHostdevSubsysSCSI;

src/qemu/qemu_command.c

@@ -4959,21 +4959,13 @@ static char *
 qemuBuildSCSIiSCSIHostdevDrvStr(virDomainHostdevDefPtr dev)
 {
     char *source = NULL;
-    virStorageSource src;
     qemuDomainHostdevPrivatePtr hostdevPriv = QEMU_DOMAIN_HOSTDEV_PRIVATE(dev);
 
-    memset(&src, 0, sizeof(src));
-
     virDomainHostdevSubsysSCSIPtr scsisrc = &dev->source.subsys.u.scsi;
     virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
 
-    src.protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI;
-    src.path = iscsisrc->path;
-    src.hosts = iscsisrc->hosts;
-    src.nhosts = iscsisrc->nhosts;
-
     /* Rather than pull what we think we want - use the network disk code */
-    source = qemuBuildNetworkDriveStr(&src, hostdevPriv->secinfo);
+    source = qemuBuildNetworkDriveStr(iscsisrc->src, hostdevPriv->secinfo);
 
     return source;
 }

src/qemu/qemu_domain.c

@@ -1496,9 +1496,10 @@ qemuDomainSecretHostdevPrepare(virConnectPtr conn,
     if (virHostdevIsSCSIDevice(hostdev)) {
         virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi;
         virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
+        virStorageSourcePtr src = iscsisrc->src;
 
         if (scsisrc->protocol == VIR_DOMAIN_HOSTDEV_SCSI_PROTOCOL_TYPE_ISCSI &&
-            iscsisrc->auth) {
+            src->auth) {
 
             qemuDomainHostdevPrivatePtr hostdevPriv =
                 QEMU_DOMAIN_HOSTDEV_PRIVATE(hostdev);
@@ -1506,8 +1507,8 @@ qemuDomainSecretHostdevPrepare(virConnectPtr conn,
             if (!(hostdevPriv->secinfo =
                   qemuDomainSecretInfoNew(conn, priv, hostdev->info->alias,
                                           VIR_SECRET_USAGE_TYPE_ISCSI,
-                                          iscsisrc->auth->username,
-                                          &iscsisrc->auth->seclookupdef,
+                                          src->auth->username,
+                                          &src->auth->seclookupdef,
                                           false)))
                 return -1;
         }
@@ -8259,7 +8260,7 @@ qemuDomainGetHostdevPath(virDomainDefPtr def,
                 /* Follow qemuSetupDiskCgroup() and qemuSetImageCgroupInternal()
                  * which does nothing for non local storage
                  */
-                VIR_DEBUG("Not updating /dev for hostdev iSCSI path '%s'", iscsisrc->path);
+                VIR_DEBUG("Not updating /dev for hostdev iSCSI path '%s'", iscsisrc->src->path);
             } else {
                 virDomainHostdevSubsysSCSIHostPtr scsihostsrc = &scsisrc->u.host;
                 scsi = virSCSIDeviceNew(NULL,

src/qemu/qemu_hotplug.c

@@ -4926,7 +4926,7 @@ int qemuDomainDetachHostDevice(virQEMUDriverPtr driver,
                 virDomainHostdevSubsysSCSIiSCSIPtr iscsisrc = &scsisrc->u.iscsi;
                 virReportError(VIR_ERR_OPERATION_FAILED,
                                _("host scsi iSCSI path %s not found"),
-                               iscsisrc->path);
+                               iscsisrc->src->path);
             } else {
                  virDomainHostdevSubsysSCSIHostPtr scsihostsrc =
                      &scsisrc->u.host;