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[libvirt] [PATCH 1/3] caps: new internal function "virCapabilitiesSetHvUserAndGroup"



It allows to set the optional elements "hv_user" and "hv_group" for a guest.

hv_user and hv_group can be used to specify the user/group which own the
hypervisor.

Signed-off-by: Giuseppe Scrivano <gscrivan redhat com>
---
 src/conf/capabilities.c  | 46 ++++++++++++++++++++++++++++++++++++++++++++++
 src/conf/capabilities.h  |  7 +++++++
 src/libvirt_private.syms |  1 +
 3 files changed, 54 insertions(+)

diff --git a/src/conf/capabilities.c b/src/conf/capabilities.c
index 1acc936..ffb1db5 100644
--- a/src/conf/capabilities.c
+++ b/src/conf/capabilities.c
@@ -169,6 +169,9 @@ virCapabilitiesFreeGuest(virCapsGuestPtr guest)
         virCapabilitiesFreeGuestFeature(guest->features[i]);
     VIR_FREE(guest->features);
 
+    VIR_FREE(guest->hvUser);
+    VIR_FREE(guest->hvGroup);
+
     VIR_FREE(guest);
 }
 
@@ -470,6 +473,43 @@ error:
 
 
 /**
+ * virCapabilitiesSetHvUserAndGroup:
+ * @guest: guest to set HV user:group for.
+ * @user: name of the user which owns the hypervisor.  Use NULL to unset.
+ * @group: name of the group which owns the hypervisor.  Use NULL to unset.
+ *
+ * Set the user and the group which own the hypervisor.
+ */
+int
+virCapabilitiesSetHvUserAndGroup(virCapsGuestPtr guest,
+                                 const char *user,
+                                 const char *group)
+{
+    char *u = NULL;
+    char *g = NULL;
+
+    if (user && VIR_STRDUP(u, user) < 0)
+        goto no_memory;
+
+    if (group && VIR_STRDUP(g, group) < 0)
+        goto no_memory;
+
+    VIR_FREE(guest->hvUser);
+    VIR_FREE(guest->hvGroup);
+
+    guest->hvUser = u;
+    guest->hvGroup = g;
+
+    return 0;
+
+no_memory:
+    VIR_FREE(u);
+    VIR_FREE(g);
+    return -1;
+}
+
+
+/**
  * virCapabilitiesAddGuestFeature:
  * @guest: guest to associate feature with
  * @name: name of feature ('pae', 'acpi', 'apic')
@@ -903,6 +943,12 @@ virCapabilitiesFormatXML(virCapsPtr caps)
 
             virBufferAddLit(&xml, "    </features>\n");
         }
+        if (caps->guests[i]->hvUser)
+            virBufferAsprintf(&xml, "    <hv_user>%s</hv_user>\n",
+                              caps->guests[i]->hvUser);
+        if (caps->guests[i]->hvGroup)
+            virBufferAsprintf(&xml, "    <hv_group>%s</hv_group>\n",
+                              caps->guests[i]->hvGroup);
 
         virBufferAddLit(&xml, "  </guest>\n\n");
     }
diff --git a/src/conf/capabilities.h b/src/conf/capabilities.h
index 88ec454..a6fe7e0 100644
--- a/src/conf/capabilities.h
+++ b/src/conf/capabilities.h
@@ -80,6 +80,8 @@ typedef struct _virCapsGuest virCapsGuest;
 typedef virCapsGuest *virCapsGuestPtr;
 struct _virCapsGuest {
     char *ostype;
+    char *hvUser;
+    char *hvGroup;
     virCapsGuestArch arch;
     size_t nfeatures;
     size_t nfeatures_max;
@@ -218,6 +220,11 @@ virCapabilitiesAddGuestDomain(virCapsGuestPtr guest,
                               int nmachines,
                               virCapsGuestMachinePtr *machines);
 
+extern int
+virCapabilitiesSetHvUserAndGroup(virCapsGuestPtr guest,
+                                 const char *user,
+                                 const char *group);
+
 extern virCapsGuestFeaturePtr
 virCapabilitiesAddGuestFeature(virCapsGuestPtr guest,
                                const char *name,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index c25a61f..41219d6 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -60,6 +60,7 @@ virCapabilitiesFreeNUMAInfo;
 virCapabilitiesGetCpusForNodemask;
 virCapabilitiesNew;
 virCapabilitiesSetHostCPU;
+virCapabilitiesSetHvUserAndGroup;
 
 
 # conf/cpu_conf.h
-- 
1.8.3.1


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