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[libvirt] [PATCH 07/10] util: storage: adapt to changes in JSON format for NBD



Since 2.9 the host and port for NBD are no longer directly under the
json pseudo-protocol object, but rather belong to a sub-object called
'server'.
---
 src/util/virstoragefile.c | 28 +++++++++++++++++-----------
 tests/virstoragetest.c    | 11 +++++++++++
 2 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 4f063e7f2..36e7ca759 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -3010,11 +3010,12 @@ virStorageSourceParseBackingJSONNbd(virStorageSourcePtr src,
     const char *host = virJSONValueObjectGetString(json, "host");
     const char *port = virJSONValueObjectGetString(json, "port");
     const char *export = virJSONValueObjectGetString(json, "export");
+    virJSONValuePtr server = virJSONValueObjectGetObject(json, "server");

-    if (!path && !host) {
+    if (!path && !host && !server) {
         virReportError(VIR_ERR_INVALID_ARG, "%s",
-                       _("missing path or host of NBD server in JSON backing "
-                         "volume definition"));
+                       _("missing host specification of NBD server in JSON "
+                         "backing volume definition"));
         return -1;
     }

@@ -3028,17 +3029,22 @@ virStorageSourceParseBackingJSONNbd(virStorageSourcePtr src,
         return -1;
     src->nhosts = 1;

-    if (path) {
-        src->hosts[0].transport = VIR_STORAGE_NET_HOST_TRANS_UNIX;
-        if (VIR_STRDUP(src->hosts[0].socket, path) < 0)
+    if (server) {
+        if (virStorageSourceParseBackingJSONSocketAddress(src->hosts, server) < 0)
             return -1;
     } else {
-        src->hosts[0].transport = VIR_STORAGE_NET_HOST_TRANS_TCP;
-        if (VIR_STRDUP(src->hosts[0].name, host) < 0)
-            return -1;
+        if (path) {
+            src->hosts[0].transport = VIR_STORAGE_NET_HOST_TRANS_UNIX;
+            if (VIR_STRDUP(src->hosts[0].socket, path) < 0)
+                return -1;
+        } else {
+            src->hosts[0].transport = VIR_STORAGE_NET_HOST_TRANS_TCP;
+            if (VIR_STRDUP(src->hosts[0].name, host) < 0)
+                return -1;

-        if (VIR_STRDUP(src->hosts[0].port, port) < 0)
-            return -1;
+            if (VIR_STRDUP(src->hosts[0].port, port) < 0)
+                return -1;
+        }
     }

     return 0;
diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index c31f4fc54..443d9c6ec 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -1471,6 +1471,17 @@ mymain(void)
                        "<source protocol='nbd' name='blah'>\n"
                        "  <host name='example.org' port='6000'/>\n"
                        "</source>\n");
+    TEST_BACKING_PARSE("json:{\"file\":{\"driver\":\"nbd\","
+                                       "\"export\":\"blah\","
+                                       "\"server\": { \"type\":\"tcp\","
+                                                     "\"host\":\"example.org\","
+                                                     "\"port\":\"6000\""
+                                                   "}"
+                                      "}"
+                            "}",
+                       "<source protocol='nbd' name='blah'>\n"
+                       "  <host name='example.org' port='6000'/>\n"
+                       "</source>\n");
     TEST_BACKING_PARSE("json:{\"file\":{\"driver\":\"ssh\","
                                        "\"host\":\"example.org\","
                                        "\"port\":\"6000\","
-- 
2.12.2


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