[Qemu-devel] [PATCH 4/5] DVD movie support

[Laurent Vivier]

This patch allows to read a protected/encrypted movie from a DVD.
(With a Movie Player having the key to decode it, tested with powerDVD)

Laurent
---
 hw/scsi-generic.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

Index: qemu/hw/scsi-generic.c
===================================================================
--- qemu.orig/hw/scsi-generic.c 2008-01-23 14:03:01.000000000 +0100
+++ qemu/hw/scsi-generic.c      2008-01-23 14:03:02.000000000 +0100
@@ -46,9 +46,12 @@ do { fprintf(stderr, "scsi-generic: " fm
 #include <scsi/scsi.h>
 #include "block-sg.h"
 
+#define BLANK 0xa1
+#define SEND_KEY 0xa3
+#define REPORT_KEY 0xa4
 #define LOAD_UNLOAD 0xa6
+#define READ_DVD_STRUCTURE 0xad
 #define SET_CD_SPEED 0xbb
-#define BLANK 0xa1
 
 #define SCSI_CMD_BUF_SIZE     16
 #define SCSI_SENSE_BUF_SIZE 32
@@ -398,6 +401,12 @@ static int scsi_length(uint8_t *cmd, int
     case READ_12:
         *len *= blocksize;
         break;
+  case READ_DVD_STRUCTURE:
+  case SEND_KEY:
+  case REPORT_KEY:
+      *len &= 0xffff;
+      break;
+
     }
     return 0;
 }
@@ -435,6 +444,7 @@ static int is_write(int command)
     case MEDIUM_SCAN:
     case SEND_VOLUME_TAG:
     case WRITE_LONG_2:
+    case SEND_KEY:
         return 1;
     }
     return 0;