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target/sbc: Return INVALID_CDB_FIELD if DIF + sess_prot_type disabled

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In sbc_check_prot(), if PROTECT is non-zero for a backend device with
DIF disabled, and sess_prot_type is not set go ahead and return
INVALID_CDB_FIELD.

Reviewed-by: Martin Petersen <martin.petersen@oracle.com>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
This commit is contained in:
Nicholas Bellinger 2015-04-14 11:55:01 -07:00
parent bffb5128f9
commit cceca4a638
1 changed files with 5 additions and 1 deletions
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6
drivers/target/target_core_sbc.c
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@ -702,9 +702,13 @@ sbc_check_prot(struct se_device *dev, struct se_cmd *cmd, unsigned char *cdb,
pi_prot_type = cmd->se_sess->sess_prot_type;
break;
}
if (!protect)
return TCM_NO_SENSE;
/* Fallthrough */
default:
return TCM_NO_SENSE;
pr_err("Unable to determine pi_prot_type for CDB: 0x%02x "
"PROTECT: 0x%02x\n", cdb[0], protect);
return TCM_INVALID_CDB_FIELD;
}
if (sbc_set_prot_op_checks(protect, fabric_prot, pi_prot_type, is_write, cmd))