From 3e1c0c9a4bbaf90a96b14efb771d766fdd091b38 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 11 Jul 2011 15:02:26 +0200 Subject: [PATCH] scsi-disk: Mask out serial number EVPD If the serial number is not set we should mask it out in the list of supported VPD pages and mark it as not supported. Signed-off-by: Hannes Reinecke Acked-by: Paolo Bonzini Signed-off-by: Kevin Wolf --- hw/scsi-disk.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/hw/scsi-disk.c b/hw/scsi-disk.c index 5804662..05d14ab 100644 --- a/hw/scsi-disk.c +++ b/hw/scsi-disk.c @@ -398,7 +398,8 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) "buffer size %zd\n", req->cmd.xfer); pages = buflen++; outbuf[buflen++] = 0x00; // list of supported pages (this page) - outbuf[buflen++] = 0x80; // unit serial number + if (s->serial) + outbuf[buflen++] = 0x80; // unit serial number outbuf[buflen++] = 0x83; // device identification if (s->drive_kind == SCSI_HD) { outbuf[buflen++] = 0xb0; // block limits @@ -409,8 +410,14 @@ static int scsi_disk_emulate_inquiry(SCSIRequest *req, uint8_t *outbuf) } case 0x80: /* Device serial number, optional */ { - int l = strlen(s->serial); + int l; + if (!s->serial) { + DPRINTF("Inquiry (EVPD[Serial number] not supported\n"); + return -1; + } + + l = strlen(s->serial); if (l > req->cmd.xfer) l = req->cmd.xfer; if (l > 20) @@ -1203,7 +1210,9 @@ static int scsi_initfn(SCSIDevice *dev, SCSIDriveKind kind) if (!s->serial) { /* try to fall back to value set with legacy -drive serial=... */ dinfo = drive_get_by_blockdev(s->bs); - s->serial = qemu_strdup(*dinfo->serial ? dinfo->serial : "0"); + if (*dinfo->serial) { + s->serial = qemu_strdup(dinfo->serial); + } } if (!s->version) { -- 2.7.4