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Blivet3.6.0-7

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Backport iSCSI initiator name related fixes:
- Allow changing iSCSI initiator name after setting it
  Resolves: rhbz#2083139
- Add a basic test case for the iscsi module
  Related: rhbz#2083139
- tests: Use blivet-specific prefix for targetcli backing files
  Related: rhbz#2083139
- iscsi: Save firmware initiator name to /etc/iscsi/initiatorname.iscsi
  Resolves: rhbz#2084043
- tests: Improve iscsi_test.ISCSITestCase
  Related: rhbz#2083139
This commit is contained in:
Jan Pokorny 2023-07-24 12:00:07 +02:00
parent 55f55998c7
commit 8c33a55a88
2 changed files with 397 additions and 1 deletions
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382
0016-Backport-iSCSI-initiator-name-related-fixes.patch Normal file
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@ -0,0 +1,382 @@
From d06c45db59d0e917dbab4c283f2f04c8f9206a6e Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Mon, 6 Mar 2023 10:51:42 +0100
Subject: [PATCH 1/5] Allow changing iSCSI initiator name after setting it
Resolves: rhbz#2083139
---
blivet/iscsi.py | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/blivet/iscsi.py b/blivet/iscsi.py
index 86451db3..0d063f2a 100644
--- a/blivet/iscsi.py
+++ b/blivet/iscsi.py
@@ -212,14 +212,23 @@ class iSCSI(object):
@initiator.setter
@storaged_iscsi_required(critical=True, eval_mode=util.EvalMode.onetime)
def initiator(self, val):
- if self.initiator_set and val != self._initiator:
- raise ValueError(_("Unable to change iSCSI initiator name once set"))
if len(val) == 0:
raise ValueError(_("Must provide an iSCSI initiator name"))
+ active = self._get_active_sessions()
+ if active:
+ raise errors.ISCSIError(_("Cannot change initiator name with an active session"))
+
log.info("Setting up iSCSI initiator name %s", self.initiator)
args = GLib.Variant("(sa{sv})", (val, None))
self._call_initiator_method("SetInitiatorName", args)
+
+ if self.initiator_set and val != self._initiator:
+ log.info("Restarting iscsid after initiator name change")
+ rc = util.run_program(["systemctl", "restart", "iscsid"])
+ if rc != 0:
+ raise errors.ISCSIError(_("Failed to restart iscsid after initiator name change"))
+
self._initiator = val
def active_nodes(self, target=None):
--
2.40.1
From b71991d65c270c023364b03c499b4bf3e245fbd0 Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Mon, 6 Mar 2023 15:10:28 +0100
Subject: [PATCH 2/5] Add a basic test case for the iscsi module
Related: rhbz#2083139
---
tests/storage_tests/__init__.py | 2 +
tests/storage_tests/iscsi_test.py | 157 +++++++++++++++++++++++++++++
3 files changed, 162 insertions(+)
create mode 100644 tests/storage_tests/iscsi_test.py
diff --git a/tests/storage_tests/__init__.py b/tests/storage_tests/__init__.py
index 3b2a6cc4..e69fcc34 100644
--- a/tests/storage_tests/__init__.py
+++ b/tests/storage_tests/__init__.py
@@ -3,3 +3,5 @@ from .formats_test import *
from .partitioning_test import *
from .unsupported_disklabel_test import *
+
+from .iscsi_test import *
diff --git a/tests/storage_tests/iscsi_test.py b/tests/storage_tests/iscsi_test.py
new file mode 100644
index 00000000..00cc7c36
--- /dev/null
+++ b/tests/storage_tests/iscsi_test.py
@@ -0,0 +1,157 @@
+import glob
+import os
+import re
+import shutil
+import subprocess
+import unittest
+
+from contextlib import contextmanager
+
+from .storagetestcase import create_sparse_tempfile
+
+
+def read_file(filename, mode="r"):
+ with open(filename, mode) as f:
+ content = f.read()
+ return content
+
+
+@contextmanager
+def udev_settle():
+ try:
+ yield
+ finally:
+ os.system("udevadm settle")
+
+
+def _delete_backstore(name):
+ status = subprocess.call(["targetcli", "/backstores/fileio/ delete %s" % name],
+ stdout=subprocess.DEVNULL)
+ if status != 0:
+ raise RuntimeError("Failed to delete the '%s' fileio backstore" % name)
+
+
+def delete_iscsi_target(iqn, backstore=None):
+ status = subprocess.call(["targetcli", "/iscsi delete %s" % iqn],
+ stdout=subprocess.DEVNULL)
+ if status != 0:
+ raise RuntimeError("Failed to delete the '%s' iscsi device" % iqn)
+
+ if backstore is not None:
+ _delete_backstore(backstore)
+
+
+def create_iscsi_target(fpath, initiator_name=None):
+ """
+ Creates a new iSCSI target (using targetcli) on top of the
+ :param:`fpath` backing file.
+
+ :param str fpath: path of the backing file
+ :returns: iSCSI IQN, backstore name
+ :rtype: tuple of str
+
+ """
+
+ # "register" the backing file as a fileio backstore
+ store_name = os.path.basename(fpath)
+ status = subprocess.call(["targetcli", "/backstores/fileio/ create %s %s" % (store_name, fpath)], stdout=subprocess.DEVNULL)
+ if status != 0:
+ raise RuntimeError("Failed to register '%s' as a fileio backstore" % fpath)
+
+ out = subprocess.check_output(["targetcli", "/backstores/fileio/%s info" % store_name])
+ out = out.decode("utf-8")
+ store_wwn = None
+ for line in out.splitlines():
+ if line.startswith("wwn: "):
+ store_wwn = line[5:]
+ if store_wwn is None:
+ raise RuntimeError("Failed to determine '%s' backstore's wwn" % store_name)
+
+ # create a new iscsi device
+ out = subprocess.check_output(["targetcli", "/iscsi create"])
+ out = out.decode("utf-8")
+ match = re.match(r'Created target (.*).', out)
+ if match:
+ iqn = match.groups()[0]
+ else:
+ _delete_backstore(store_name)
+ raise RuntimeError("Failed to create a new iscsi target")
+
+ if initiator_name:
+ status = subprocess.call(["targetcli", "/iscsi/%s/tpg1/acls create %s" % (iqn, initiator_name)], stdout=subprocess.DEVNULL)
+ if status != 0:
+ delete_iscsi_target(iqn, store_name)
+ raise RuntimeError("Failed to set ACLs for '%s'" % iqn)
+
+ with udev_settle():
+ status = subprocess.call(["targetcli", "/iscsi/%s/tpg1/luns create /backstores/fileio/%s" % (iqn, store_name)], stdout=subprocess.DEVNULL)
+ if status != 0:
+ delete_iscsi_target(iqn, store_name)
+ raise RuntimeError("Failed to create a new LUN for '%s' using '%s'" % (iqn, store_name))
+
+ status = subprocess.call(["targetcli", "/iscsi/%s/tpg1 set attribute generate_node_acls=1" % iqn], stdout=subprocess.DEVNULL)
+ if status != 0:
+ raise RuntimeError("Failed to set ACLs for '%s'" % iqn)
+
+ return iqn, store_name
+
+
+@unittest.skipUnless(os.geteuid() == 0, "requires root privileges")
+@unittest.skipUnless(os.environ.get("JENKINS_HOME"), "jenkins only test")
+@unittest.skipUnless(shutil.which("iscsiadm"), "iscsiadm not available")
+class ISCSITestCase(unittest.TestCase):
+
+ _disk_size = 512 * 1024**2
+ initiator = 'iqn.1994-05.com.redhat:iscsi-test'
+
+ def setUp(self):
+ self.addCleanup(self._clean_up)
+
+ self._dev_file = None
+ self.dev = None
+
+ self._dev_file = create_sparse_tempfile("blivet_test", self._disk_size)
+ try:
+ self.dev, self.backstore = create_iscsi_target(self._dev_file, self.initiator)
+ except RuntimeError as e:
+ raise RuntimeError("Failed to setup targetcli device for testing: %s" % e)
+
+ def _force_logout(self):
+ subprocess.call(["iscsiadm", "--mode", "node", "--logout", "--name", self.dev], stdout=subprocess.DEVNULL)
+
+ def _clean_up(self):
+ self._force_logout()
+ delete_iscsi_target(self.dev, self.backstore)
+ os.unlink(self._dev_file)
+
+ def test_discover_login(self):
+ from blivet.iscsi import iscsi, has_iscsi
+
+ if not has_iscsi():
+ self.skipTest("iSCSI not available, skipping")
+
+ iscsi.initiator = self.initiator
+ nodes = iscsi.discover("127.0.0.1")
+ self.assertTrue(nodes)
+
+ if len(nodes) > 1:
+ self.skipTest("Discovered more than one iSCSI target on localhost, skipping")
+
+ self.assertEqual(nodes[0].address, "127.0.0.1")
+ self.assertEqual(nodes[0].port, 3260)
+ self.assertEqual(nodes[0].name, self.dev)
+
+ # change the initiator name
+ iscsi.initiator = self.initiator + "_1"
+ self.assertEqual(iscsi.initiator, self.initiator + "_1")
+
+ # try to login
+ ret, err = iscsi.log_into_node(nodes[0])
+ self.assertTrue(ret, "Login failed: %s" % err)
+
+ # check the session for initiator name
+ sessions = glob.glob("/sys/class/iscsi_session/*/")
+ self.assertTrue(sessions)
+ self.assertEqual(len(sessions), 1)
+ initiator = read_file(sessions[0] + "initiatorname").strip()
+ self.assertEqual(initiator, iscsi.initiator)
--
2.40.1
From 65e8150a7404e37dd2740841a88e7f2565836406 Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Mon, 6 Mar 2023 15:14:40 +0100
Subject: [PATCH 3/5] tests: Use blivet-specific prefix for targetcli backing
files
The code is originally from libblockdev hence the "bd" prefix, we
should use a different prefix for blivet to be able to identify
which test suite failed to clean the files.
Related: rhbz#2083139
---
tests/storage_tests/storagetestcase.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tests/storage_tests/storagetestcase.py b/tests/storage_tests/storagetestcase.py
index 35d57ce9..9f859977 100644
--- a/tests/storage_tests/storagetestcase.py
+++ b/tests/storage_tests/storagetestcase.py
@@ -39,7 +39,7 @@ def create_sparse_tempfile(name, size):
:param size: the file size (in bytes)
:returns: the path to the newly created file
"""
- (fd, path) = tempfile.mkstemp(prefix="bd.", suffix="-%s" % name)
+ (fd, path) = tempfile.mkstemp(prefix="blivet.", suffix="-%s" % name)
os.close(fd)
create_sparse_file(path, size)
return path
--
2.40.1
From 41278ef1b3f949303fd30fff2ccdde75f713c9f8 Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Wed, 19 Jul 2023 13:57:39 +0200
Subject: [PATCH 4/5] iscsi: Save firmware initiator name to
/etc/iscsi/initiatorname.iscsi
Resolves: rhbz#2084043
---
blivet/iscsi.py | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/blivet/iscsi.py b/blivet/iscsi.py
index 0d063f2a..8080a671 100644
--- a/blivet/iscsi.py
+++ b/blivet/iscsi.py
@@ -160,6 +160,11 @@ class iSCSI(object):
self._initiator = initiatorname
except Exception as e: # pylint: disable=broad-except
log.info("failed to get initiator name from iscsi firmware: %s", str(e))
+ else:
+ # write the firmware initiator to /etc/iscsi/initiatorname.iscsi
+ log.info("Setting up firmware iSCSI initiator name %s", self.initiator)
+ args = GLib.Variant("(sa{sv})", (initiatorname, None))
+ self._call_initiator_method("SetInitiatorName", args)
# So that users can write iscsi() to get the singleton instance
def __call__(self):
--
2.40.1
From fce8b73965d968aab546bc7e0ecb65d1995da46f Mon Sep 17 00:00:00 2001
From: Vojtech Trefny <vtrefny@redhat.com>
Date: Wed, 19 Jul 2023 10:38:45 +0200
Subject: [PATCH 5/5] tests: Improve iscsi_test.ISCSITestCase
Changed how we create the initiator name ACLs based on RTT test
case for rhbz#2084043 and also improved the test case itself.
Related: rhbz#2083139
---
tests/storage_tests/iscsi_test.py | 36 +++++++++++++++++++++----------
1 file changed, 25 insertions(+), 11 deletions(-)
diff --git a/tests/storage_tests/iscsi_test.py b/tests/storage_tests/iscsi_test.py
index 00cc7c36..6cc83a59 100644
--- a/tests/storage_tests/iscsi_test.py
+++ b/tests/storage_tests/iscsi_test.py
@@ -77,21 +77,17 @@ def create_iscsi_target(fpath, initiator_name=None):
_delete_backstore(store_name)
raise RuntimeError("Failed to create a new iscsi target")
- if initiator_name:
- status = subprocess.call(["targetcli", "/iscsi/%s/tpg1/acls create %s" % (iqn, initiator_name)], stdout=subprocess.DEVNULL)
- if status != 0:
- delete_iscsi_target(iqn, store_name)
- raise RuntimeError("Failed to set ACLs for '%s'" % iqn)
-
with udev_settle():
status = subprocess.call(["targetcli", "/iscsi/%s/tpg1/luns create /backstores/fileio/%s" % (iqn, store_name)], stdout=subprocess.DEVNULL)
if status != 0:
delete_iscsi_target(iqn, store_name)
raise RuntimeError("Failed to create a new LUN for '%s' using '%s'" % (iqn, store_name))
- status = subprocess.call(["targetcli", "/iscsi/%s/tpg1 set attribute generate_node_acls=1" % iqn], stdout=subprocess.DEVNULL)
- if status != 0:
- raise RuntimeError("Failed to set ACLs for '%s'" % iqn)
+ if initiator_name:
+ status = subprocess.call(["targetcli", "/iscsi/%s/tpg1/acls create %s" % (iqn, initiator_name)], stdout=subprocess.DEVNULL)
+ if status != 0:
+ delete_iscsi_target(iqn, store_name)
+ raise RuntimeError("Failed to set ACLs for '%s'" % iqn)
return iqn, store_name
@@ -130,6 +126,7 @@ class ISCSITestCase(unittest.TestCase):
if not has_iscsi():
self.skipTest("iSCSI not available, skipping")
+ # initially set the initiator to the correct/allowed one
iscsi.initiator = self.initiator
nodes = iscsi.discover("127.0.0.1")
self.assertTrue(nodes)
@@ -141,11 +138,28 @@ class ISCSITestCase(unittest.TestCase):
self.assertEqual(nodes[0].port, 3260)
self.assertEqual(nodes[0].name, self.dev)
- # change the initiator name
+ # change the initiator name to a wrong one
iscsi.initiator = self.initiator + "_1"
self.assertEqual(iscsi.initiator, self.initiator + "_1")
- # try to login
+ # check the change made it to /etc/iscsi/initiatorname.iscsi
+ initiator_file = read_file("/etc/iscsi/initiatorname.iscsi").strip()
+ self.assertEqual(initiator_file, "InitiatorName=%s" % self.initiator + "_1")
+
+ # try to login (should fail)
+ ret, err = iscsi.log_into_node(nodes[0])
+ self.assertFalse(ret)
+ self.assertIn("authorization failure", err)
+
+ # change the initiator name back to the correct one
+ iscsi.initiator = self.initiator
+ self.assertEqual(iscsi.initiator, self.initiator)
+
+ # check the change made it to /etc/iscsi/initiatorname.iscsi
+ initiator_file = read_file("/etc/iscsi/initiatorname.iscsi").strip()
+ self.assertEqual(initiator_file, "InitiatorName=%s" % self.initiator)
+
+ # try to login (should work now)
ret, err = iscsi.log_into_node(nodes[0])
self.assertTrue(ret, "Login failed: %s" % err)
--
2.40.1

16
python-blivet.spec
View File

@ -23,7 +23,7 @@ Version: 3.6.0
#%%global prerelease .b2
# prerelease, if defined, should be something like .a1, .b1, .b2.dev1, or .c2
Release: 6%{?prerelease}%{?dist}
Release: 7%{?prerelease}%{?dist}
Epoch: 1
License: LGPLv2+
%global realname blivet
@ -45,6 +45,7 @@ Patch11: 0012-Add-support-for-specifying-stripe-size-for-RAID-LVs.patch
Patch12: 0013-Fix-setting-kickstart-data.patch
Patch13: 0014-Do-not-set-memory-limit-for-LUKS2-when-running-in-FI.patch
Patch14: 0015-Add-support-for-filesystem-online-resize.patch
Patch15: 0016-Backport-iSCSI-initiator-name-related-fixes.patch
# Versions of required components (done so we make sure the buildrequires
# match the requires versions of things).
@ -207,6 +208,19 @@ configuration.
%endif
%changelog
* Mon Jul 24 2023 Jan Pokorny <japokorn@redhat.com> - 3.6.0-7
Backport iSCSI initiator name related fixes:
- Allow changing iSCSI initiator name after setting it
Resolves: rhbz#2083139
- Add a basic test case for the iscsi module
Related: rhbz#2083139
- tests: Use blivet-specific prefix for targetcli backing files
Related: rhbz#2083139
- iscsi: Save firmware initiator name to /etc/iscsi/initiatorname.iscsi
Resolves: rhbz#2084043
- tests: Improve iscsi_test.ISCSITestCase
Related: rhbz#2083139
* Thu May 18 2023 Vojtech Trefny <vtrefny@redhat.com> - 3.6.0-6
- Fix setting kickstart data
Resolves: rhbz#2175166