Signed-off-by: Cole Robinson <crobinso@xxxxxxxxxx>
---
include/libvirt/libvirt.h | 4 +++
include/libvirt/libvirt.h.in | 4 +++
src/driver.h | 6 ++++
src/libvirt.c | 61 ++++++++++++++++++++++++++++++++++++++++-
src/libvirt_public.syms | 5 +++
5 files changed, 78 insertions(+), 2 deletions(-)
diff --git a/include/libvirt/libvirt.h b/include/libvirt/libvirt.h
index 30f559d..b1e45e4 100644
--- a/include/libvirt/libvirt.h
+++ b/include/libvirt/libvirt.h
@@ -1047,6 +1047,10 @@ const char* virStorageVolGetKey (virStorageVolPtr vol);
virStorageVolPtr virStorageVolCreateXML (virStoragePoolPtr pool,
const char *xmldesc,
unsigned int flags);
+virStorageVolPtr virStorageVolCreateXMLFrom (virStoragePoolPtr pool,
+ const char *xmldesc,
+ unsigned int flags,
+ virStorageVolPtr clonevol);
int virStorageVolDelete (virStorageVolPtr vol,
unsigned int flags);
int virStorageVolRef (virStorageVolPtr vol);
diff --git a/include/libvirt/libvirt.h.in b/include/libvirt/libvirt.h.in
index 2f7076f..f5cadb4 100644
--- a/include/libvirt/libvirt.h.in
+++ b/include/libvirt/libvirt.h.in
@@ -1047,6 +1047,10 @@ const char* virStorageVolGetKey (virStorageVolPtr vol);
virStorageVolPtr virStorageVolCreateXML (virStoragePoolPtr pool,
const char *xmldesc,
unsigned int flags);
+virStorageVolPtr virStorageVolCreateXMLFrom (virStoragePoolPtr pool,
+ const char *xmldesc,
+ unsigned int flags,
+ virStorageVolPtr clonevol);
int virStorageVolDelete (virStorageVolPtr vol,
unsigned int flags);
int virStorageVolRef (virStorageVolPtr vol);
diff --git a/src/driver.h b/src/driver.h
index c357b76..ff12ada 100644
--- a/src/driver.h
+++ b/src/driver.h
@@ -586,6 +586,11 @@ typedef char *
typedef char *
(*virDrvStorageVolGetPath) (virStorageVolPtr vol);
+typedef virStorageVolPtr
+ (*virDrvStorageVolCreateXMLFrom) (virStoragePoolPtr pool,
+ const char *xmldesc,
+ unsigned int flags,
+ virStorageVolPtr clone);
typedef struct _virStorageDriver virStorageDriver;
@@ -633,6 +638,7 @@ struct _virStorageDriver {
virDrvStorageVolLookupByKey volLookupByKey;
virDrvStorageVolLookupByPath volLookupByPath;
virDrvStorageVolCreateXML volCreateXML;
+ virDrvStorageVolCreateXMLFrom volCreateXMLFrom;
virDrvStorageVolDelete volDelete;
virDrvStorageVolGetInfo volGetInfo;
virDrvStorageVolGetXMLDesc volGetXMLDesc;
diff --git a/src/libvirt.c b/src/libvirt.c
index ded18a7..5a51c45 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -6767,6 +6767,65 @@ error:
/**
+ * virStorageVolCreateXMLFrom:
+ * @pool: pointer to parent pool for the new volume
+ * @xmldesc: description of volume to create
+ * @flags: flags for creation (unused, pass 0)
+ * @clonevol: storage volume to use as input
+ *
+ * Create a storage volume in the parent pool, using the
+ * 'clonevol' volume as input. Information for the new
+ * volume (name, perms) are passed via a typical volume
+ * XML description.
+ *
+ * return the storage volume, or NULL on error
+ */
+virStorageVolPtr
+virStorageVolCreateXMLFrom(virStoragePoolPtr pool,
+ const char *xmldesc,
+ unsigned int flags,
+ virStorageVolPtr clonevol)
+{
+ DEBUG("pool=%p, flags=%u, clonevol=%p", pool, flags, clonevol);
+
+ virResetLastError();
+
+ if (!VIR_IS_STORAGE_POOL(pool)) {
+ virLibConnError(NULL, VIR_ERR_INVALID_STORAGE_POOL, __FUNCTION__);
+ return (NULL);
+ }
+
+ if (!VIR_IS_STORAGE_VOL(clonevol)) {
+ virLibConnError(NULL, VIR_ERR_INVALID_STORAGE_VOL, __FUNCTION__);
+ return (NULL);
+ }
+
+ if (pool->conn->flags & VIR_CONNECT_RO ||
+ clonevol->conn->flags & VIR_CONNECT_RO) {
+ virLibConnError(pool->conn, VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+ goto error;
+ }
+
+ if (pool->conn->storageDriver &&
+ pool->conn->storageDriver->volCreateXMLFrom) {
+ virStorageVolPtr ret;
+ ret = pool->conn->storageDriver->volCreateXMLFrom (pool, xmldesc,
+ flags, clonevol);
+ if (!ret)
+ goto error;
+ return ret;
+ }
+
+ virLibConnError (pool->conn, VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+ /* Copy to connection error object for back compatability */
+ virSetConnError(pool->conn);
+ return NULL;
+}
+
+
+/**
* virStorageVolDelete:
* @vol: pointer to storage volume
* @flags: future flags, use 0 for now
@@ -7009,8 +7068,6 @@ error:
}
-
-
/**
* virNodeNumOfDevices:
* @conn: pointer to the hypervisor connection
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index b8f9128..0ea130f 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -265,3 +265,8 @@ LIBVIRT_0.6.3 {
} LIBVIRT_0.6.1;
# .... define new API here using predicted next version number ....
+
+LIBVIRT_0.6.4 {
+ global:
+ virStorageVolCreateXMLFrom;
+} LIBVIRT_0.6.3;
--
1.6.0.6
--
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