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scst_lib: Fix VPD inquiry handling on incorrect LUNs

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When SCST receives an INQUIRY request for an incorrect LUN, it calls
scst_set_lun_not_supported_inquiry(), which returns an inquiry buffer with
a peripheral qualifier of 011b and a peripheral device type of 1Fh.
However, for a VPD inquiry, it is unable to populate the remaining fields.
According to SPC-6, if the device server cannot return the requested data,
it should terminate with CHECK CONDITION.

Reported-by: Lev Vainblat <lev@zadarastorage.com>
This commit is contained in:
Gleb Chesnokov
2024-08-19 11:10:34 +03:00
parent 7117490910
commit 0b00e0af96
1 changed files with 1 additions and 1 deletions
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scst/src/scst_lib.c
+1 -1
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@@ -2094,7 +2094,7 @@ int scst_set_cmd_error(struct scst_cmd *cmd, int key, int asc, int ascq)
if (cmd->cdb[0] == REQUEST_SENSE)
res = scst_set_lun_not_supported_request_sense(cmd,
key, asc, ascq);
else if (cmd->cdb[0] == INQUIRY)
else if (cmd->cdb[0] == INQUIRY && !(cmd->cdb[1] & 0x01/*EVPD*/))
res = scst_set_lun_not_supported_inquiry(cmd);
else if (cmd->cdb[0] == REPORT_LUNS)
res = scst_set_lun_not_supported_report_luns(cmd);