scsi-disk: Fail medium writes with proper sense for readonly LUNs

Add sense code for DATA_PROTECT/WRITE_PROTECTED and return this error
for any WRITE*/WRITE_VERIFY* calls if the device is readonly=on,
i.e. write-protected

Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/hw/scsi.h b/hw/scsi.h
index e2fb8a4870..fc9dc50e43 100644
--- a/hw/scsi.h
+++ b/hw/scsi.h
@@ -208,6 +208,8 @@ extern const struct SCSISense sense_code_MEDIUM_CHANGED;
 extern const struct SCSISense sense_code_REPORTED_LUNS_CHANGED;
 /* Unit attention, Device internal reset */
 extern const struct SCSISense sense_code_DEVICE_INTERNAL_RESET;
+/* Data Protection, Write Protected */
+extern const struct SCSISense sense_code_WRITE_PROTECTED;
 
 #define SENSE_CODE(x) sense_code_ ## x