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[PATCH 1/1] SCSI READ10/12/16: Return correct sense when invalid RDPROTECT is used | |
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Tomo, List Please find attached a patch for read10/12/16 that makes it return INVALID REQUEST/ILLEGAL OPERATION CODE when a non-zero RDPROTECT value is specified. RDPROTECT must be 0 when type 0 protection (==no protection) is used. regards ronnie sahlberg
Attachment:
0001-Return-correct-sense-for-reads-with-invalid-RDPROTEC.patch.gz
Description: GNU Zip compressed data
From 0c63772a0c10c812e17b1db80adcfb2d7c0b7dfb Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <ronniesahlberg@xxxxxxxxx>
Date: Sat, 16 Apr 2011 09:56:17 +1000
Subject: [PATCH] Return correct sense for reads with invalid RDPROTECT field.
TGTD does not use formatting protection, i.e. it always uses
'type 0 protection'.
In 'type 0 protection' any READ10/12/16 command that specifies a non-zero
RDPROTECT value should be aborted with ILLEGAL REQUEST/INVALID OPERATION CODE
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@xxxxxxxxx>
---
usr/sbc.c | 12 ++++++++++++
1 files changed, 12 insertions(+), 0 deletions(-)
diff --git a/usr/sbc.c b/usr/sbc.c
index a5fb754..cb07be6 100644
--- a/usr/sbc.c
+++ b/usr/sbc.c
@@ -112,6 +112,18 @@ static int sbc_rw(int host_no, struct scsi_cmd *cmd)
if (ret)
return SAM_STAT_RESERVATION_CONFLICT;
+ switch (cmd->scb[0]) {
+ case READ_10:
+ case READ_12:
+ case READ_16:
+ if (cmd->scb[1] & 0xe0) {
+ key = ILLEGAL_REQUEST;
+ asc = ASC_INVALID_OP_CODE;
+ goto sense;
+ }
+ break;
+ }
+
if (lu->attrs.readonly) {
switch (cmd->scb[0]) {
case WRITE_6:
--
1.7.3.1
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