util: Add "shareable" field for virSCSIDevice struct

Unlike the host devices of other types, SCSI host device XML supports
"shareable" tag. This patch introduces it for the virSCSIDevice struct
for a later patch use (to detect if the SCSI device is shareable when
preparing the SCSI host device in QEMU driver).

src/libvirt_private.syms

@@ -1683,6 +1683,7 @@ virSCSIDeviceGetDevName;
 virSCSIDeviceGetName;
 virSCSIDeviceGetReadonly;
 virSCSIDeviceGetSgName;
+virSCSIDeviceGetShareable;
 virSCSIDeviceGetTarget;
 virSCSIDeviceGetUnit;
 virSCSIDeviceGetUsedBy;

src/qemu/qemu_cgroup.c

@@ -295,7 +295,8 @@ qemuSetupHostdevCGroup(virDomainObjPtr vm,
                                          dev->source.subsys.u.scsi.bus,
                                          dev->source.subsys.u.scsi.target,
                                          dev->source.subsys.u.scsi.unit,
-                                         dev->readonly)) == NULL)
+                                         dev->readonly,
+                                         dev->shareable)) == NULL)
                 goto cleanup;
 
             if (virSCSIDeviceFileIterate(scsi,

src/qemu/qemu_hostdev.c

@@ -267,7 +267,8 @@ qemuUpdateActiveScsiHostdevs(virQEMUDriverPtr driver,
                                       hostdev->source.subsys.u.scsi.bus,
                                       hostdev->source.subsys.u.scsi.target,
                                       hostdev->source.subsys.u.scsi.unit,
-                                      hostdev->readonly)))
+                                      hostdev->readonly,
+                                      hostdev->shareable)))
             goto cleanup;
 
         virSCSIDeviceSetUsedBy(scsi, def->name);
@@ -1097,7 +1098,8 @@ qemuPrepareHostdevSCSIDevices(virQEMUDriverPtr driver,
                                       hostdev->source.subsys.u.scsi.bus,
                                       hostdev->source.subsys.u.scsi.target,
                                       hostdev->source.subsys.u.scsi.unit,
-                                      hostdev->readonly)))
+                                      hostdev->readonly,
+                                      hostdev->shareable)))
             goto cleanup;
 
         if (scsi && virSCSIDeviceListAdd(list, scsi) < 0) {
@@ -1395,7 +1397,8 @@ qemuDomainReAttachHostScsiDevices(virQEMUDriverPtr driver,
                                       hostdev->source.subsys.u.scsi.bus,
                                       hostdev->source.subsys.u.scsi.target,
                                       hostdev->source.subsys.u.scsi.unit,
-                                      hostdev->readonly))) {
+                                      hostdev->readonly,
+                                      hostdev->shareable))) {
             VIR_WARN("Unable to reattach SCSI device %s:%d:%d:%d on domain %s",
                      hostdev->source.subsys.u.scsi.adapter,
                      hostdev->source.subsys.u.scsi.bus,

src/security/security_apparmor.c

@@ -833,7 +833,8 @@ AppArmorSetSecurityHostdevLabel(virSecurityManagerPtr mgr,
                              dev->source.subsys.u.scsi.bus,
                              dev->source.subsys.u.scsi.target,
                              dev->source.subsys.u.scsi.unit,
-                             dev->readonly);
+                             dev->readonly,
+                             dev->shareable);
 
          if (!scsi)
              goto done;

src/security/security_dac.c

@@ -536,7 +536,8 @@ virSecurityDACSetSecurityHostdevLabel(virSecurityManagerPtr mgr,
                              dev->source.subsys.u.scsi.bus,
                              dev->source.subsys.u.scsi.target,
                              dev->source.subsys.u.scsi.unit,
-                             dev->readonly);
+                             dev->readonly,
+                             dev->shareable);
 
         if (!scsi)
             goto done;
@@ -653,7 +654,8 @@ virSecurityDACRestoreSecurityHostdevLabel(virSecurityManagerPtr mgr,
                              dev->source.subsys.u.scsi.bus,
                              dev->source.subsys.u.scsi.target,
                              dev->source.subsys.u.scsi.unit,
-                             dev->readonly);
+                             dev->readonly,
+                             dev->shareable);
 
         if (!scsi)
             goto done;

src/security/security_selinux.c

@@ -1354,7 +1354,8 @@ virSecuritySELinuxSetSecurityHostdevSubsysLabel(virDomainDefPtr def,
                              dev->source.subsys.u.scsi.bus,
                              dev->source.subsys.u.scsi.target,
                              dev->source.subsys.u.scsi.unit,
-                             dev->readonly);
+                             dev->readonly,
+                             dev->shareable);
 
         if (!scsi)
             goto done;
@@ -1545,7 +1546,8 @@ virSecuritySELinuxRestoreSecurityHostdevSubsysLabel(virSecurityManagerPtr mgr,
                              dev->source.subsys.u.scsi.bus,
                              dev->source.subsys.u.scsi.target,
                              dev->source.subsys.u.scsi.unit,
-                             dev->readonly);
+                             dev->readonly,
+                             dev->shareable);
 
             if (!scsi)
                 goto done;

src/util/virscsi.c

@@ -58,6 +58,7 @@ struct _virSCSIDevice {
     const char *used_by; /* name of the domain using this dev */
 
     bool readonly;
+    bool shareable;
 };
 
 struct _virSCSIDeviceList {
@@ -185,7 +186,8 @@ virSCSIDeviceNew(const char *adapter,
                  unsigned int bus,
                  unsigned int target,
                  unsigned int unit,
-                 bool readonly)
+                 bool readonly,
+                 bool shareable)
 {
     virSCSIDevicePtr dev, ret = NULL;
     char *sg = NULL;
@@ -201,6 +203,7 @@ virSCSIDeviceNew(const char *adapter,
     dev->target = target;
     dev->unit = unit;
     dev->readonly = readonly;
+    dev->shareable= shareable;
 
     if (!(sg = virSCSIDeviceGetSgName(adapter, bus, target, unit)))
         goto cleanup;
@@ -311,6 +314,12 @@ virSCSIDeviceGetReadonly(virSCSIDevicePtr dev)
     return dev->readonly;
 }
 
+bool
+virSCSIDeviceGetShareable(virSCSIDevicePtr dev)
+{
+    return dev->shareable;
+}
+
 int
 virSCSIDeviceFileIterate(virSCSIDevicePtr dev,
                          virSCSIDeviceFileActor actor,

src/util/virscsi.h

@@ -46,7 +46,8 @@ virSCSIDevicePtr virSCSIDeviceNew(const char *adapter,
                                   unsigned int bus,
                                   unsigned int target,
                                   unsigned int unit,
-                                  bool readonly);
+                                  bool readonly,
+                                  bool shareable);
 
 void virSCSIDeviceFree(virSCSIDevicePtr dev);
 void virSCSIDeviceSetUsedBy(virSCSIDevicePtr dev, const char *name);
@@ -57,6 +58,7 @@ unsigned int virSCSIDeviceGetBus(virSCSIDevicePtr dev);
 unsigned int virSCSIDeviceGetTarget(virSCSIDevicePtr dev);
 unsigned int virSCSIDeviceGetUnit(virSCSIDevicePtr dev);
 bool virSCSIDeviceGetReadonly(virSCSIDevicePtr dev);
+bool virSCSIDeviceGetShareable(virSCSIDevicePtr dev);
 
 /*
  * Callback that will be invoked once for each file