[libvirt] [RFC PATCH 1/5] storage: encryption: Add deep copy function for storage encryption

[Peter Krempa]

---
 src/util/virstorageencryption.c | 39 +++++++++++++++++++++++++++++++++++++++
 src/util/virstorageencryption.h |  2 ++
 2 files changed, 41 insertions(+)

diff --git a/src/util/virstorageencryption.c b/src/util/virstorageencryption.c
index 1306490..f750642 100644
--- a/src/util/virstorageencryption.c
+++ b/src/util/virstorageencryption.c
@@ -67,6 +67,45 @@ virStorageEncryptionFree(virStorageEncryptionPtr enc)
 }

 static virStorageEncryptionSecretPtr
+virStorageEncryptionSecretCopy(const virStorageEncryptionSecret *src)
+{
+    virStorageEncryptionSecretPtr ret;
+
+    if (VIR_ALLOC(ret) < 0)
+        return NULL;
+
+    memcpy(ret, src, sizeof(*src));
+
+    return ret;
+}
+
+virStorageEncryptionPtr
+virStorageEncryptionCopy(const virStorageEncryption *src)
+{
+    virStorageEncryptionPtr ret;
+    size_t i;
+
+    if (VIR_ALLOC(ret) < 0)
+        return NULL;
+
+    ret->nsecrets = src->nsecrets;
+
+    if (VIR_ALLOC_N(ret->secrets, ret->nsecrets) < 0)
+        goto error;
+
+    for (i = 0; i < src->nsecrets; i++) {
+        if (!(ret->secrets[i] = virStorageEncryptionSecretCopy(src->secrets[i])))
+            goto error;
+    }
+
+    return ret;
+
+ error:
+    virStorageEncryptionFree(ret);
+    return NULL;
+}
+
+static virStorageEncryptionSecretPtr
 virStorageEncryptionSecretParse(xmlXPathContextPtr ctxt,
                                 xmlNodePtr node)
 {
diff --git a/src/util/virstorageencryption.h b/src/util/virstorageencryption.h
index f63c9ee..313d7ac 100644
--- a/src/util/virstorageencryption.h
+++ b/src/util/virstorageencryption.h
@@ -61,6 +61,8 @@ struct _virStorageEncryption {
     virStorageEncryptionSecretPtr *secrets;
 };

+virStorageEncryptionPtr virStorageEncryptionCopy(const virStorageEncryption *src);
+
 void virStorageEncryptionFree(virStorageEncryptionPtr enc);

 virStorageEncryptionPtr virStorageEncryptionParseNode(xmlDocPtr xml,
-- 
1.9.3