PSARC/2010/113 Boot Block Downgrade Avoidance

PSARC/2010/271 EOF and removal of installgrub(1m) floppy support
6944352 prevent downgrading the boot block on update on multi-BE environments
6972371 EOF and removal of installgrub(1m) floppy support [PSARC/2010/271]

--HG--
rename : usr/src/cmd/boot/installgrub/floppy.c => usr/src/cmd/boot/installgrub/pcfs_glue.c

4 files changed, 8 insertions, 51 deletions

diff --git a/usr/src/grub/grub-0.97/grub/asmstub.c b/usr/src/grub/grub-0.97/grub/asmstub.c
index fabe86df26..c32823b0f1 100644
--- a/usr/src/grub/grub-0.97/grub/asmstub.c
+++ b/usr/src/grub/grub-0.97/grub/asmstub.c
@@ -67,9 +67,6 @@ int grub_stage2 (void);
 #define EXTENDED_MEMSIZE (64 * 1024 * 1024)	/* 64MB */
 #define CONVENTIONAL_MEMSIZE (640 * 1024)	/* 640kB */
 
-unsigned char md5hash[] = "\xCC\xCC\xCC\xCC\xAA\xAA\xAA\xAA\xBB\xBB\xBB\xBB"
-    "\xBB\xBB\xBB\xBB";
-char pkg_version[] = "empty";
 unsigned long install_partition = 0x20000;
 unsigned long boot_drive = 0;
 int saved_entryno = 0;
diff --git a/usr/src/grub/grub-0.97/stage2/asm.S b/usr/src/grub/grub-0.97/stage2/asm.S
index 931098136f..3e9986c0df 100644
--- a/usr/src/grub/grub-0.97/stage2/asm.S
+++ b/usr/src/grub/grub-0.97/stage2/asm.S
@@ -108,17 +108,16 @@ VARIABLE(config_file)
 	 *  Leave some breathing room for the config file name.
 	 */
 
-	. = EXT_C(main) + 0x5f
-VARIABLE(ext_info)
-	.byte 0xEE
-VARIABLE(md5hash)
-	.quad	0xAAAAAAAACCCCCCCC, 0xBBBBBBBBBBBBBBBB
-VARIABLE(pkg_version)
-	.byte 0
+	. = EXT_C(main) + 0x60
+VARIABLE(fake_mboot)
+	.long	0x1BADB002
+	.long   0x00010003 
+	.long	-0x1BAEB005	
 	/* 
-	 * installgrub will place the pkg_version here
+	 * installgrub will place the rest of the fake 
+	 * multiboot header here.
 	 */
-	.= EXT_C(main) + 0x110
+	.= EXT_C(main) + 0x140
 /* the real mode code continues... */
 codestart:
 	cli		/* we're not safe here! */
diff --git a/usr/src/grub/grub-0.97/stage2/builtins.c b/usr/src/grub/grub-0.97/stage2/builtins.c
index 0aedcd7b19..af4a6f28bb 100644
--- a/usr/src/grub/grub-0.97/stage2/builtins.c
+++ b/usr/src/grub/grub-0.97/stage2/builtins.c
@@ -18,11 +18,6 @@
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-/*
- * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
-
 /* Include stdio.h before shared.h, because we can't define
    WITHOUT_LIBC_STUBS here.  */
 #ifdef GRUB_UTIL
@@ -2175,32 +2170,6 @@ static struct builtin builtin_impsprobe =
   " a tight loop."
 };
 
-/* extended info */
-static int
-info_func (char *arg, int flags)
-{
-  int  i;
-
-  grub_printf("Extended version information : %s\n", pkg_version);
-  grub_printf("stage2 (MD5) signature : ");
-
-  for (i = 0; i < 0x10; i++)
-    grub_printf("%x", md5hash[i]);
-
-  grub_printf("\n");
-}
-
-static struct builtin builtin_info =
-{
-  "info",
-  info_func,
-  BUILTIN_CMDLINE | BUILTIN_HELP_LIST | BUILTIN_SCRIPT,
-  "info",
-  "Read Grub extended version and stage2 MD5 hash"
-};
-
-
-
 /* initrd */
 static int
 initrd_func (char *arg, int flags)
@@ -5896,7 +5865,6 @@ struct builtin *builtin_table[] =
   &builtin_ifconfig,
 #endif /* SUPPORT_NETBOOT */
   &builtin_impsprobe,
-  &builtin_info,
   &builtin_initrd,
   &builtin_install,
   &builtin_ioprobe,
diff --git a/usr/src/grub/grub-0.97/stage2/shared.h b/usr/src/grub/grub-0.97/stage2/shared.h
index 45f878a707..205715b021 100644
--- a/usr/src/grub/grub-0.97/stage2/shared.h
+++ b/usr/src/grub/grub-0.97/stage2/shared.h
@@ -17,10 +17,6 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
-/*
- * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
- * Use is subject to license terms.
- */
 
 /*
  *  Generic defines to use anywhere
@@ -534,7 +530,6 @@ struct vbe_mode
   unsigned char reserved3[189];
 } __attribute__ ((packed));
 
-
 #undef NULL
 #define NULL         ((void *) 0)
 
@@ -607,8 +602,6 @@ extern char version_string[];
 extern char config_file[];
 extern char *bootfile;
 extern configfile_origin_t configfile_origin;
-extern unsigned char md5hash[];
-extern char pkg_version[];
 extern unsigned long linux_text_len;
 extern char *linux_data_tmp_addr;
 extern char *linux_data_real_addr;