Author: mav
Date: Sat Oct 18 17:11:02 2014
New Revision: 273259
URL: https://svnweb.freebsd.org/changeset/base/273259
Log:
Make VPD 80h (Serial Number) transfer length match serial number length.
MFC after: 1 week
Modified:
head/sys/cam/ctl/ctl.c
Modified: head/sys/cam/ctl/ctl.c
==============================================================================
--- head/sys/cam/ctl/ctl.c Sat Oct 18 17:00:55 2014 (r273258)
+++ head/sys/cam/ctl/ctl.c Sat Oct 18 17:11:02 2014 (r273259)
@@ -9705,17 +9705,17 @@ ctl_inquiry_evpd_serial(struct ctl_scsii
{
struct scsi_vpd_unit_serial_number *sn_ptr;
struct ctl_lun *lun;
+ int data_len;
lun = (struct ctl_lun *)ctsio->io_hdr.ctl_private[CTL_PRIV_LUN].ptr;
- ctsio->kern_data_ptr = malloc(sizeof(*sn_ptr), M_CTL, M_WAITOK |
M_ZERO);
+ data_len = 4 + CTL_SN_LEN;
+ ctsio->kern_data_ptr = malloc(data_len, M_CTL, M_WAITOK | M_ZERO);
sn_ptr = (struct scsi_vpd_unit_serial_number *)ctsio->kern_data_ptr;
- ctsio->kern_sg_entries = 0;
-
- if (sizeof(*sn_ptr) < alloc_len) {
- ctsio->residual = alloc_len - sizeof(*sn_ptr);
- ctsio->kern_data_len = sizeof(*sn_ptr);
- ctsio->kern_total_len = sizeof(*sn_ptr);
+ if (data_len < alloc_len) {
+ ctsio->residual = alloc_len - data_len;
+ ctsio->kern_data_len = data_len;
+ ctsio->kern_total_len = data_len;
} else {
ctsio->residual = 0;
ctsio->kern_data_len = alloc_len;
@@ -9737,16 +9737,16 @@ ctl_inquiry_evpd_serial(struct ctl_scsii
sn_ptr->device = (SID_QUAL_LU_OFFLINE << 5) | T_DIRECT;
sn_ptr->page_code = SVPD_UNIT_SERIAL_NUMBER;
- sn_ptr->length = ctl_min(sizeof(*sn_ptr) - 4, CTL_SN_LEN);
+ sn_ptr->length = CTL_SN_LEN;
/*
* If we don't have a LUN, we just leave the serial number as
* all spaces.
*/
- memset(sn_ptr->serial_num, 0x20, sizeof(sn_ptr->serial_num));
if (lun != NULL) {
strncpy((char *)sn_ptr->serial_num,
(char *)lun->be_lun->serial_num, CTL_SN_LEN);
- }
+ } else
+ memset(sn_ptr->serial_num, 0x20, CTL_SN_LEN);
ctsio->scsi_status = SCSI_STATUS_OK;
ctsio->io_hdr.flags |= CTL_FLAG_ALLOCATED;
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