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abd838688e
libblockdev/0013-ddf-mdadm-uuid-parse-fix.patch
Vojtech Trefny abd838688e Fix getting UUID for DDF containers 
Resolves: rhbz#2109026
2022-08-08 09:16:53 +02:00

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From 9bcaddbe97067f10e643a7d99fa13716126f6e60 Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Tue, 25 Aug 2020 14:09:18 +0200
Subject: [PATCH 1/4] mdraid: Do not ignore errors from bd_md_canonicalize_uuid
in bd_md_examine
---
src/plugins/mdraid.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/src/plugins/mdraid.c b/src/plugins/mdraid.c
index b97bc641..d41b6372 100644
--- a/src/plugins/mdraid.c
+++ b/src/plugins/mdraid.c
@@ -983,12 +983,24 @@ BDMDExamineData* bd_md_examine (const gchar *device, GError **error) {
orig_data = ret->uuid;
if (orig_data) {
ret->uuid = bd_md_canonicalize_uuid (orig_data, error);
+ if (!ret->uuid) {
+ g_prefix_error (error, "Failed to canonicalize MD UUID '%s': ", orig_data);
+ g_free (orig_data);
+ bd_md_examine_data_free (ret);
+ return NULL;
+ }
g_free (orig_data);
}
orig_data = ret->dev_uuid;
if (orig_data) {
ret->dev_uuid = bd_md_canonicalize_uuid (orig_data, error);
+ if (!ret->uuid) {
+ g_prefix_error (error, "Failed to canonicalize MD UUID '%s': ", orig_data);
+ g_free (orig_data);
+ bd_md_examine_data_free (ret);
+ return NULL;
+ }
g_free (orig_data);
}
--
2.37.1
From 1805734e8315d5fb73f036dae043312c88f3c3ec Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Tue, 25 Aug 2020 14:12:52 +0200
Subject: [PATCH 2/4] mdraid: Try harder to get container UUID in bd_md_examine
For containers UUID is not printed in 'mdadm --examine' but it is
printed when using the '--export' option.
---
src/plugins/mdraid.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/src/plugins/mdraid.c b/src/plugins/mdraid.c
index d41b6372..3a23cf2e 100644
--- a/src/plugins/mdraid.c
+++ b/src/plugins/mdraid.c
@@ -1023,6 +1023,17 @@ BDMDExamineData* bd_md_examine (const gchar *device, GError **error) {
value++;
g_free (ret->level);
ret->level = g_strdup (value);
+ } else if (!ret->uuid && g_str_has_prefix (output_fields[i], "MD_UUID=")) {
+ value = strchr (output_fields[i], '=');
+ value++;
+ ret->uuid = bd_md_canonicalize_uuid (value, error);
+ if (!ret->uuid) {
+ g_prefix_error (error, "Failed to canonicalize MD UUID '%s': ", orig_data);
+ g_free (orig_data);
+ bd_md_examine_data_free (ret);
+ g_strfreev (output_fields);
+ return NULL;
+ }
}
g_strfreev (output_fields);
--
2.37.1
From 166756338f90d90b32ae0989db706dd52f7df234 Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Thu, 4 Aug 2022 12:47:53 +0200
Subject: [PATCH 3/4] mdraid: Try harder to get container UUID in bd_md_detail
Similarly to bd_md_examine (see a10ad4e0), "mdadm --detail"
doesn't contain container UUID, we need to need "--export" for
that.
---
src/plugins/mdraid.c | 43 +++++++++++++++++++++++++++++++++++--------
1 file changed, 35 insertions(+), 8 deletions(-)
diff --git a/src/plugins/mdraid.c b/src/plugins/mdraid.c
index 3a23cf2e..67bdc1f9 100644
--- a/src/plugins/mdraid.c
+++ b/src/plugins/mdraid.c
@@ -1093,13 +1093,16 @@ BDMDExamineData* bd_md_examine (const gchar *device, GError **error) {
* Tech category: %BD_MD_TECH_MDRAID-%BD_MD_TECH_MODE_QUERY
*/
BDMDDetailData* bd_md_detail (const gchar *raid_spec, GError **error) {
- const gchar *argv[] = {"mdadm", "--detail", NULL, NULL};
+ const gchar *argv[] = {"mdadm", "--detail", NULL, NULL, NULL};
gchar *output = NULL;
gboolean success = FALSE;
GHashTable *table = NULL;
guint num_items = 0;
gchar *orig_uuid = NULL;
- gchar *mdadm_spec = NULL;
+ g_autofree gchar *mdadm_spec = NULL;
+ gchar *value = NULL;
+ gchar **output_fields = NULL;
+ guint i = 0;
BDMDDetailData *ret = NULL;
if (!check_deps (&avail_deps, DEPS_MDADM_MASK, deps, DEPS_LAST, &deps_check_lock, error))
@@ -1113,16 +1116,13 @@ BDMDDetailData* bd_md_detail (const gchar *raid_spec, GError **error) {
argv[2] = mdadm_spec;
success = bd_utils_exec_and_capture_output (argv, NULL, &output, error);
- if (!success) {
- g_free (mdadm_spec);
+ if (!success)
/* error is already populated */
return NULL;
- }
table = parse_mdadm_vars (output, "\n", ":", &num_items);
g_free (output);
if (!table || (num_items == 0)) {
- g_free (mdadm_spec);
/* something bad happened or some expected items were missing */
g_set_error (error, BD_MD_ERROR, BD_MD_ERROR_PARSE, "Failed to parse mddetail data");
if (table)
@@ -1132,7 +1132,6 @@ BDMDDetailData* bd_md_detail (const gchar *raid_spec, GError **error) {
ret = get_detail_data_from_table (table, TRUE);
if (!ret) {
- g_free (mdadm_spec);
g_set_error (error, BD_MD_ERROR, BD_MD_ERROR_PARSE, "Failed to get mddetail data");
return NULL;
}
@@ -1145,7 +1144,35 @@ BDMDDetailData* bd_md_detail (const gchar *raid_spec, GError **error) {
g_free (orig_uuid);
}
- g_free (mdadm_spec);
+ if (!ret->uuid) {
+ argv[2] = "--export";
+ argv[3] = mdadm_spec;
+ success = bd_utils_exec_and_capture_output (argv, NULL, &output, error);
+ if (!success) {
+ /* error is already populated */
+ bd_md_detail_data_free (ret);
+ return NULL;
+ }
+
+ /* try to get a better information about RAID level because it may be
+ missing in the output without --export */
+ output_fields = g_strsplit (output, "\n", 0);
+ g_free (output);
+ output = NULL;
+ for (i = 0; (i < g_strv_length (output_fields) - 1); i++)
+ if (g_str_has_prefix (output_fields[i], "MD_UUID=")) {
+ value = strchr (output_fields[i], '=');
+ value++;
+ ret->uuid = bd_md_canonicalize_uuid (value, error);
+ if (!ret->uuid) {
+ g_prefix_error (error, "Failed to canonicalize MD UUID '%s': ", value);
+ bd_md_detail_data_free (ret);
+ g_strfreev (output_fields);
+ return NULL;
+ }
+ }
+ g_strfreev (output_fields);
+ }
return ret;
}
--
2.37.1
From 25dd2f8c7cc3cf540902fc40e808faabda3c691a Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Thu, 4 Aug 2022 12:51:48 +0200
Subject: [PATCH 4/4] Add a test case for DDF arrays/containers
---
tests/mdraid_test.py | 51 ++++++++++++++++++++++++++++++++++++++++----
1 file changed, 47 insertions(+), 4 deletions(-)
diff --git a/tests/mdraid_test.py b/tests/mdraid_test.py
index 0b2bdc9b..38f43a0d 100644
--- a/tests/mdraid_test.py
+++ b/tests/mdraid_test.py
@@ -6,7 +6,7 @@ from contextlib import contextmanager
import overrides_hack
import six
-from utils import create_sparse_tempfile, create_lio_device, delete_lio_device, fake_utils, fake_path, TestTags, tag_test
+from utils import create_sparse_tempfile, create_lio_device, delete_lio_device, fake_utils, fake_path, TestTags, tag_test, run_command
from gi.repository import BlockDev, GLib
@@ -90,14 +90,16 @@ class MDNoDevTestCase(MDTest):
class MDTestCase(MDTest):
+ _sparse_size = 10 * 1024**2
+
def setUp(self):
if os.uname()[-1] == "i686":
self.skipTest("Skipping hanging MD RAID tests on i686")
self.addCleanup(self._clean_up)
- self.dev_file = create_sparse_tempfile("md_test", 10 * 1024**2)
- self.dev_file2 = create_sparse_tempfile("md_test", 10 * 1024**2)
- self.dev_file3 = create_sparse_tempfile("md_test", 10 * 1024**2)
+ self.dev_file = create_sparse_tempfile("md_test", self._sparse_size)
+ self.dev_file2 = create_sparse_tempfile("md_test", self._sparse_size)
+ self.dev_file3 = create_sparse_tempfile("md_test", self._sparse_size)
try:
self.loop_dev = create_lio_device(self.dev_file)
@@ -586,6 +588,47 @@ class MDTestRequestSyncAction(MDTestCase):
action = f.read().strip()
self.assertEqual(action, "check")
+
+class MDTestDDFRAID(MDTestCase):
+
+ _sparse_size = 50 * 1024**2
+
+ def _clean_up(self):
+ try:
+ BlockDev.md_deactivate("bd_test_ddf")
+ except:
+ pass
+ try:
+ BlockDev.md_deactivate(BlockDev.md_node_from_name("bd_test_ddf"))
+ except:
+ pass
+
+ super(MDTestDDFRAID, self)._clean_up()
+
+ def test_examine_ddf_container(self):
+ succ = BlockDev.md_create("bd_test_md", "container",
+ [self.loop_dev, self.loop_dev2],
+ 0, "ddf", False)
+ self.assertTrue(succ)
+
+ # we cannot create the array with libblockdev because we cannot pass the --raid-devices option
+ ret, _out, err = run_command("mdadm --create /dev/md/bd_test_ddf --run --level=raid0 --raid-devices=2 /dev/md/bd_test_md")
+ self.assertEqual(ret, 0, msg="Failed to create RAID for DDF test: %s" % err)
+
+ edata = BlockDev.md_examine(self.loop_dev)
+ self.assertIsNotNone(edata)
+ self.assertIsNotNone(edata.uuid)
+ self.assertEqual(edata.level, "container")
+ self.assertEqual(edata.metadata, "ddf")
+
+ ddata = BlockDev.md_detail("bd_test_md")
+ self.assertIsNotNone(ddata)
+ self.assertIsNotNone(ddata.uuid)
+ self.assertEqual(ddata.uuid, edata.uuid)
+ self.assertEqual(ddata.level, "container")
+ self.assertEqual(ddata.metadata, "ddf")
+
+
class FakeMDADMutilTest(MDTest):
# no setUp nor tearDown needed, we are gonna use fake utils
@tag_test(TestTags.NOSTORAGE)
--
2.37.1
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