[libvirt RFC PATCH 10/10] util: storage: Add JSON backing volume parser for 'ssh' protocol

[Peter Krempa <pkrempa@xxxxxxxxxx>]

---
 src/util/virstoragefile.c | 38 ++++++++++++++++++++++++++++++++++++++
 tests/virstoragetest.c    |  9 +++++++++
 2 files changed, 47 insertions(+)

diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 4aa1a9b..9c7b5a4 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -2685,6 +2685,43 @@ virStorageSourceParseBackingJSONSheepdog(virStorageSourcePtr src,
 }


+static int
+virStorageSourceParseBackingJSONSSH(virStorageSourcePtr src,
+                                    virJSONValuePtr json,
+                                    int opaque ATTRIBUTE_UNUSED)
+{
+    const char *path = virJSONValueObjectGetString(json, "file.path");
+    const char *host = virJSONValueObjectGetString(json, "file.host");
+    const char *port = virJSONValueObjectGetString(json, "file.port");
+
+    if (!host) {
+        virReportError(VIR_ERR_INVALID_ARG, "%s",
+                       _("missing host of SSH server in JSON backing "
+                         "volume definition"));
+        return -1;
+    }
+
+    src->type = VIR_STORAGE_TYPE_NETWORK;
+    src->protocol = VIR_STORAGE_NET_PROTOCOL_SSH;
+
+    if (VIR_STRDUP(src->path, path) < 0)
+        return -1;
+
+    if (VIR_ALLOC_N(src->hosts, 1) < 0)
+        return -1;
+    src->nhosts = 1;
+
+    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;
+
+    return 0;
+}
+
+
 struct virStorageSourceJSONDriverParser {
     const char *drvname;
     int (*func)(virStorageSourcePtr src, virJSONValuePtr json, int opaque);
@@ -2704,6 +2741,7 @@ static const struct virStorageSourceJSONDriverParser jsonParsers[] = {
     {"iscsi", virStorageSourceParseBackingJSONiSCSI, 0},
     {"nbd", virStorageSourceParseBackingJSONNbd, 0},
     {"sheepdog", virStorageSourceParseBackingJSONSheepdog, 0},
+    {"ssh", virStorageSourceParseBackingJSONSSH, 0},
 };


diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
index fcb6750..3479cd8 100644
--- a/tests/virstoragetest.c
+++ b/tests/virstoragetest.c
@@ -1394,6 +1394,15 @@ mymain(void)
                        "<source protocol='nbd' name='blah'>\n"
                        "  <host name='example.org' port='6000'/>\n"
                        "</source>\n");
+    TEST_BACKING_PARSE(17, "json:{\"file.driver\":\"ssh\","
+                                 "\"file.host\":\"example.org\","
+                                 "\"file.port\":\"6000\","
+                                 "\"file.path\":\"blah\","
+                                 "\"file.user\":\"user\""
+                                 "}",
+                       "<source protocol='ssh' name='blah'>\n"
+                       "  <host name='example.org' port='6000'/>\n"
+                       "</source>\n");

  cleanup:
     /* Final cleanup */
-- 
2.8.2

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