NAS-127348 / 24.10 / Add iSCSI test test_33_no_lun_zero

[bmeagherix]

Now that SCST will allow REPORT LUNS to operate on an unsupported LUN (PR #223, present in EE), we can add a test to that effect, by creating a target that does not have an extent on LUN 0.

In test_33_no_lun_zero create a target with LUN 100 and 101 instead.

Unfortunately libiscsi performs a TEST UNIT READY following a connect (which will fail), so we cannot use it to test connecting to a missing LUN 0.

Instead enhance (and call) the existing target_login_test utility, adding an optional check_surfaced_luns parameter. This will using the test runner OS utility (e.g. iscsiadm) to login the target, and then we will ensure that the expected LUNs are seen.

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Tested with HA and SINGLE.

[bugclerk]

Jira URL: https://ixsystems.atlassian.net/browse/NAS-127348

[bugclerk]

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