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target: Fail INQUIRY commands with EVPD==0 but PAGE CODE!=0

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My draft of SPC-4 says:

    If the PAGE CODE field is not set to zero when the EVPD bit is set
    to zero, the command shall be terminated with CHECK CONDITION
    status, with the sense key set to ILLEGAL REQUEST, and the
    additional sense code set to INVALID FIELD IN CDB.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Roland Dreier 2012-01-17 18:00:57 -08:00 • committed by Nicholas Bellinger
commit bf0053550a
1 changed files with 7 additions and 0 deletions
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7
drivers/target/target_core_cdb.c
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@ -698,6 +698,13 @@ int target_emulate_inquiry(struct se_task *task)
int p, ret;
if (!(cdb[1] & 0x1)) {
if (cdb[2]) {
pr_err("INQUIRY with EVPD==0 but PAGE CODE=%02x\n",
cdb[2]);
cmd->scsi_sense_reason = TCM_INVALID_CDB_FIELD;
return -EINVAL;
}
ret = target_emulate_inquiry_std(cmd);
goto out;
}