From 8370edea81e321b8a976969753d6b2811e6d5ed6 Mon Sep 17 00:00:00 2001
From: Vivek Goyal <vgoyal@redhat.com>
Date: Fri, 8 Aug 2014 14:25:38 -0700
Subject: bin2c: move bin2c in scripts/basic

This patch series does not do kernel signature verification yet.  I plan
to post another patch series for that.  Now distributions are already
signing PE/COFF bzImage with PKCS7 signature I plan to parse and verify
those signatures.

Primary goal of this patchset is to prepare groundwork so that kernel
image can be signed and signatures be verified during kexec load.  This
should help with two things.

- It should allow kexec/kdump on secureboot enabled machines.

- In general it can help even without secureboot. By being able to verify
  kernel image signature in kexec, it should help with avoiding module
  signing restrictions. Matthew Garret showed how to boot into a custom
  kernel, modify first kernel's memory and then jump back to old kernel and
  bypass any policy one wants to.

This patch (of 15):

Kexec wants to use bin2c and it wants to use it really early in the build
process. See arch/x86/purgatory/ code in later patches.

So move bin2c in scripts/basic so that it can be built very early and
be usable by arch/x86/purgatory/

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/.gitignore       |  1 -
 scripts/Makefile         |  1 -
 scripts/basic/.gitignore |  1 +
 scripts/basic/Makefile   |  1 +
 scripts/basic/bin2c.c    | 35 +++++++++++++++++++++++++++++++++++
 scripts/bin2c.c          | 36 ------------------------------------
 6 files changed, 37 insertions(+), 38 deletions(-)
 create mode 100644 scripts/basic/bin2c.c
 delete mode 100644 scripts/bin2c.c

(limited to 'scripts')

diff --git a/scripts/.gitignore b/scripts/.gitignore
index fb070fa1038f..5ecfe93f2028 100644
--- a/scripts/.gitignore
+++ b/scripts/.gitignore
@@ -4,7 +4,6 @@
 conmakehash
 kallsyms
 pnmtologo
-bin2c
 unifdef
 ihex2fw
 recordmcount
diff --git a/scripts/Makefile b/scripts/Makefile
index 890df5c6adfb..72902b5f2721 100644
--- a/scripts/Makefile
+++ b/scripts/Makefile
@@ -13,7 +13,6 @@ HOST_EXTRACFLAGS += -I$(srctree)/tools/include
 hostprogs-$(CONFIG_KALLSYMS)     += kallsyms
 hostprogs-$(CONFIG_LOGO)         += pnmtologo
 hostprogs-$(CONFIG_VT)           += conmakehash
-hostprogs-$(CONFIG_IKCONFIG)     += bin2c
 hostprogs-$(BUILD_C_RECORDMCOUNT) += recordmcount
 hostprogs-$(CONFIG_BUILDTIME_EXTABLE_SORT) += sortextable
 hostprogs-$(CONFIG_ASN1)	 += asn1_compiler
diff --git a/scripts/basic/.gitignore b/scripts/basic/.gitignore
index a776371a3502..9528ec9e5adc 100644
--- a/scripts/basic/.gitignore
+++ b/scripts/basic/.gitignore
@@ -1 +1,2 @@
 fixdep
+bin2c
diff --git a/scripts/basic/Makefile b/scripts/basic/Makefile
index 4fcef87bb875..afbc1cd69ac5 100644
--- a/scripts/basic/Makefile
+++ b/scripts/basic/Makefile
@@ -9,6 +9,7 @@
 # fixdep: 	 Used to generate dependency information during build process
 
 hostprogs-y	:= fixdep
+hostprogs-$(CONFIG_IKCONFIG)     += bin2c
 always		:= $(hostprogs-y)
 
 # fixdep is needed to compile other host programs
diff --git a/scripts/basic/bin2c.c b/scripts/basic/bin2c.c
new file mode 100644
index 000000000000..af187e695345
--- /dev/null
+++ b/scripts/basic/bin2c.c
@@ -0,0 +1,35 @@
+/*
+ * Unloved program to convert a binary on stdin to a C include on stdout
+ *
+ * Jan 1999 Matt Mackall <mpm@selenic.com>
+ *
+ * This software may be used and distributed according to the terms
+ * of the GNU General Public License, incorporated herein by reference.
+ */
+
+#include <stdio.h>
+
+int main(int argc, char *argv[])
+{
+	int ch, total = 0;
+
+	if (argc > 1)
+		printf("const char %s[] %s=\n",
+			argv[1], argc > 2 ? argv[2] : "");
+
+	do {
+		printf("\t\"");
+		while ((ch = getchar()) != EOF) {
+			total++;
+			printf("\\x%02x", ch);
+			if (total % 16 == 0)
+				break;
+		}
+		printf("\"\n");
+	} while (ch != EOF);
+
+	if (argc > 1)
+		printf("\t;\n\nconst int %s_size = %d;\n", argv[1], total);
+
+	return 0;
+}
diff --git a/scripts/bin2c.c b/scripts/bin2c.c
deleted file mode 100644
index 96dd2bcbb407..000000000000
--- a/scripts/bin2c.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Unloved program to convert a binary on stdin to a C include on stdout
- *
- * Jan 1999 Matt Mackall <mpm@selenic.com>
- *
- * This software may be used and distributed according to the terms
- * of the GNU General Public License, incorporated herein by reference.
- */
-
-#include <stdio.h>
-
-int main(int argc, char *argv[])
-{
-	int ch, total=0;
-
-	if (argc > 1)
-		printf("const char %s[] %s=\n",
-			argv[1], argc > 2 ? argv[2] : "");
-
-	do {
-		printf("\t\"");
-		while ((ch = getchar()) != EOF)
-		{
-			total++;
-			printf("\\x%02x",ch);
-			if (total % 16 == 0)
-				break;
-		}
-		printf("\"\n");
-	} while (ch != EOF);
-
-	if (argc > 1)
-		printf("\t;\n\nconst int %s_size = %d;\n", argv[1], total);
-
-	return 0;
-}
-- 
cgit v1.2.1