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From b3704c6f2dba4017787ded2b7f90bd08d56cead7 Mon Sep 17 00:00:00 2001
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Message-Id: <b3704c6f2dba4017787ded2b7f90bd08d56cead7@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Tue, 2 Aug 2016 13:41:56 +0200
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Subject: [PATCH] util: storage: Add JSON backing volume parser for 'ssh'
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 protocol
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(cherry picked from commit bc225b1b5fe3e02eac76f12792aac16d00a7de1d)
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https://bugzilla.redhat.com/show_bug.cgi?id=1134878 [JSON backing]
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https://bugzilla.redhat.com/show_bug.cgi?id=1247521 [gluster multi-host]
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---
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 src/util/virstoragefile.c | 38 ++++++++++++++++++++++++++++++++++++++
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 tests/virstoragetest.c    | 19 +++++++++++++++++++
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 2 files changed, 57 insertions(+)
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diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
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index c0172af..1612e66 100644
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--- a/src/util/virstoragefile.c
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+++ b/src/util/virstoragefile.c
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@@ -2781,6 +2781,43 @@ virStorageSourceParseBackingJSONSheepdog(virStorageSourcePtr src,
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 }
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+static int
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+virStorageSourceParseBackingJSONSSH(virStorageSourcePtr src,
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+                                    virJSONValuePtr json,
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+                                    int opaque ATTRIBUTE_UNUSED)
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+{
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+    const char *path = virJSONValueObjectGetString(json, "path");
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+    const char *host = virJSONValueObjectGetString(json, "host");
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+    const char *port = virJSONValueObjectGetString(json, "port");
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+
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+    if (!host || !path) {
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+        virReportError(VIR_ERR_INVALID_ARG, "%s",
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+                       _("missing host or path of SSH JSON backing "
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+                         "volume definition"));
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+        return -1;
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+    }
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+
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+    src->type = VIR_STORAGE_TYPE_NETWORK;
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+    src->protocol = VIR_STORAGE_NET_PROTOCOL_SSH;
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+
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+    if (VIR_STRDUP(src->path, path) < 0)
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+        return -1;
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+
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+    if (VIR_ALLOC_N(src->hosts, 1) < 0)
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+        return -1;
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+    src->nhosts = 1;
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+
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+    src->hosts[0].transport = VIR_STORAGE_NET_HOST_TRANS_TCP;
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+    if (VIR_STRDUP(src->hosts[0].name, host) < 0)
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+        return -1;
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+
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+    if (VIR_STRDUP(src->hosts[0].port, port) < 0)
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+        return -1;
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+
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+    return 0;
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+}
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+
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+
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 struct virStorageSourceJSONDriverParser {
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     const char *drvname;
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     int (*func)(virStorageSourcePtr src, virJSONValuePtr json, int opaque);
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@@ -2800,6 +2837,7 @@ static const struct virStorageSourceJSONDriverParser jsonParsers[] = {
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     {"iscsi", virStorageSourceParseBackingJSONiSCSI, 0},
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     {"nbd", virStorageSourceParseBackingJSONNbd, 0},
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     {"sheepdog", virStorageSourceParseBackingJSONSheepdog, 0},
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+    {"ssh", virStorageSourceParseBackingJSONSSH, 0},
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 };
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diff --git a/tests/virstoragetest.c b/tests/virstoragetest.c
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index 4ddcac0..3b19f59 100644
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--- a/tests/virstoragetest.c
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+++ b/tests/virstoragetest.c
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@@ -1467,6 +1467,25 @@ mymain(void)
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                        "<source protocol='nbd' name='blah'>\n"
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                        "  <host name='example.org' port='6000'/>\n"
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                        "</source>\n");
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+    TEST_BACKING_PARSE("json:{\"file\":{\"driver\":\"ssh\","
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+                                       "\"host\":\"example.org\","
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+                                       "\"port\":\"6000\","
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+                                       "\"path\":\"blah\","
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+                                       "\"user\":\"user\""
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+                                      "}"
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+                            "}",
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+                       "<source protocol='ssh' name='blah'>\n"
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+                       "  <host name='example.org' port='6000'/>\n"
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+                       "</source>\n");
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+    TEST_BACKING_PARSE("json:{\"file.driver\":\"ssh\","
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+                             "\"file.host\":\"example.org\","
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+                             "\"file.port\":\"6000\","
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+                             "\"file.path\":\"blah\","
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+                             "\"file.user\":\"user\""
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+                            "}",
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+                       "<source protocol='ssh' name='blah'>\n"
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+                       "  <host name='example.org' port='6000'/>\n"
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+                       "</source>\n");
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  cleanup:
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     /* Final cleanup */
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-- 
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2.9.2
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