[PATCH 01/10] add habv4 support for i.MX6

[PATCH 01/10] add habv4 support for i.MX6

[Marc Kleine-Budde]

Hello,

this series first cleans up the imx-image generation process. Then support for
HABv4 signed images is added. The last patch add code to decode HAB events,
which is usefull during development.

Tested on $CUSTOMER's i.MX6 solo.

cheers,
Marc


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[PATCH 01/10] imx-image: sort included header files

[Marc Kleine-Budde]

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index 1f37fe20bcc0..2fa84b1a1d53 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -15,17 +15,18 @@
  * GNU General Public License for more details.
  *
  */
-#include <stdio.h>
-#include <unistd.h>
+#include <endian.h>
+#include <errno.h>
+#include <fcntl.h>
 #include <getopt.h>
-#include <stdlib.h>
 #include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
-#include <errno.h>
-#include <sys/types.h>
+#include <unistd.h>
+
 #include <sys/stat.h>
-#include <fcntl.h>
-#include <endian.h>
+#include <sys/types.h>
 
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
-- 
2.1.4


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Re: [PATCH 01/10] imx-image: sort included header files

[Sascha Hauer]

On Wed, Apr 01, 2015 at 06:14:06PM +0200, Marc Kleine-Budde wrote:
> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
> ---
>  scripts/imx/imx-image.c | 15 ++++++++-------
>  1 file changed, 8 insertions(+), 7 deletions(-)
> 
> diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
> index 1f37fe20bcc0..2fa84b1a1d53 100644
> --- a/scripts/imx/imx-image.c
> +++ b/scripts/imx/imx-image.c
> @@ -15,17 +15,18 @@
>   * GNU General Public License for more details.
>   *
>   */
> -#include <stdio.h>
> -#include <unistd.h>
> +#include <endian.h>
> +#include <errno.h>
> +#include <fcntl.h>
>  #include <getopt.h>
> -#include <stdlib.h>
>  #include <stdint.h>
> +#include <stdio.h>
> +#include <stdlib.h>
>  #include <string.h>
> -#include <errno.h>
> -#include <sys/types.h>
> +#include <unistd.h>
> +
>  #include <sys/stat.h>
> -#include <fcntl.h>
> -#include <endian.h>
> +#include <sys/types.h>

I sometimes sort the includes by length which also looks very nice ;)

We don't have a policy how includes should be sorted, so I prefer to keep
them like they are.

Also sometimes the include order matters since not all include files
include everything they need themselves, This of course should be fixed,
but forcing you to fix it before you can add new files with sorted includes
causes additional pain which I think is unnecessary

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
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[PATCH 02/10] imx-image: add_header_v2(): replace hardcoded 0x400 by offset parameter

[Marc Kleine-Budde]

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index 2fa84b1a1d53..3d8b604b7cb4 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -186,9 +186,9 @@ static int add_header_v2(void *buf, int offset, uint32_t loadaddr, uint32_t imag
 	hdr->header.version	= IVT_VERSION;
 
 	hdr->entry		= loadaddr + 0x1000;
-	hdr->dcd_ptr		= loadaddr + 0x400 + offsetof(struct imx_flash_header_v2, dcd_header);
-	hdr->boot_data_ptr	= loadaddr + 0x400 + offsetof(struct imx_flash_header_v2, boot_data);
-	hdr->self		= loadaddr + 0x400;
+	hdr->dcd_ptr		= loadaddr + offset + offsetof(struct imx_flash_header_v2, dcd_header);
+	hdr->boot_data_ptr	= loadaddr + offset + offsetof(struct imx_flash_header_v2, boot_data);
+	hdr->self		= loadaddr + offset;
 
 	hdr->boot_data.start	= loadaddr;
 	hdr->boot_data.size	= imagesize;
-- 
2.1.4


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[PATCH 03/10] imx-image: replace 0x400 by FLASH_HEADER_OFFSET

[Marc Kleine-Budde]

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index 3d8b604b7cb4..45f97504054e 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -711,8 +711,9 @@ int main(int argc, char *argv[])
 		exit(1);
 
 	if (!image_dcd_offset) {
-		fprintf(stderr, "no dcd offset given ('dcdofs'). Defaulting to 0x400\n");
-		image_dcd_offset = 0x400;
+		fprintf(stderr, "no dcd offset given ('dcdofs'). Defaulting to 0x%08x\n",
+			FLASH_HEADER_OFFSET);
+		image_dcd_offset = FLASH_HEADER_OFFSET;
 	}
 
 	if (!header_version) {
-- 
2.1.4


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[PATCH 04/10] imx-image: introduce HEADER_LEN and replace several 0x1000 and 4096

[Marc Kleine-Budde]

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index 45f97504054e..89cb8240e40d 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -32,6 +32,7 @@
 #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
 
 #define MAX_DCD 1024
+#define HEADER_LEN 0x1000	/* length of the blank area + IVT + DCD */
 
 static uint32_t image_load_addr;
 static uint32_t image_dcd_offset;
@@ -185,7 +186,7 @@ static int add_header_v2(void *buf, int offset, uint32_t loadaddr, uint32_t imag
 	hdr->header.length	= htobe16(32);
 	hdr->header.version	= IVT_VERSION;
 
-	hdr->entry		= loadaddr + 0x1000;
+	hdr->entry		= loadaddr + HEADER_LEN;
 	hdr->dcd_ptr		= loadaddr + offset + offsetof(struct imx_flash_header_v2, dcd_header);
 	hdr->boot_data_ptr	= loadaddr + offset + offsetof(struct imx_flash_header_v2, boot_data);
 	hdr->self		= loadaddr + offset;
@@ -706,7 +707,7 @@ int main(int argc, char *argv[])
 	if (ret)
 		exit(1);
 
-	buf = calloc(4096, 1);
+	buf = calloc(1, HEADER_LEN);
 	if (!buf)
 		exit(1);
 
@@ -732,14 +733,14 @@ int main(int argc, char *argv[])
 	}
 
 	/*
-	 * Add 0x1000 to the image size for the DCD.
+	 * Add HEADER_LEN to the image size for the blank aera + IVT + DCD.
 	 * Align up to a 4k boundary, because:
 	 * - at least i.MX5 NAND boot only reads full NAND pages and misses the
 	 *   last partial NAND page.
 	 * - i.MX6 SPI NOR boot corrupts the last few bytes of an image loaded
 	 *   in ver funy ways when the image size is not 4 byte aligned
 	 */
-	load_size = ((image_size + 0x1000) + 0xfff) & ~0xfff;
+	load_size = ((image_size + HEADER_LEN) + 0xfff) & ~0xfff;
 
 	switch (header_version) {
 	case 1:
@@ -760,14 +761,14 @@ int main(int argc, char *argv[])
 		exit(1);
 	}
 
-	ret = xwrite(outfd, buf, 4096);
+	ret = xwrite(outfd, buf, HEADER_LEN);
 	if (ret < 0) {
 		perror("write");
 		exit(1);
 	}
 
 	if (cpu_type == 35) {
-		ret = xwrite(outfd, buf, 4096);
+		ret = xwrite(outfd, buf, HEADER_LEN);
 		if (ret < 0) {
 			perror("write");
 			exit(1);
-- 
2.1.4


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[PATCH 05/10] imx-image: mx35: increase load image size, due to dobule header

[Marc Kleine-Budde]

Since commit:

    690e39202747 imx-image: handle i.MX35 special case

the IVT+DCD header is placed both at 0x0 and 0x1000, this patch reflects this
change and increases the load image size accordingly.

Cc: Eric Bénard <eric@eukrea.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index 89cb8240e40d..fd78a86198d6 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -742,6 +742,9 @@ int main(int argc, char *argv[])
 	 */
 	load_size = ((image_size + HEADER_LEN) + 0xfff) & ~0xfff;
 
+	if (cpu_type == 35)
+		load_size += HEADER_LEN;
+
 	switch (header_version) {
 	case 1:
 		add_header_v1(buf, image_dcd_offset, image_load_addr, load_size);
-- 
2.1.4


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[PATCH 06/10] imx-image: main: make use of round_up instead of open coding it

[Marc Kleine-Budde]

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index fd78a86198d6..ec2e8deb015b 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -30,6 +30,7 @@
 
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
 #define offsetof(TYPE, MEMBER) __builtin_offsetof(TYPE, MEMBER)
+#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
 
 #define MAX_DCD 1024
 #define HEADER_LEN 0x1000	/* length of the blank area + IVT + DCD */
@@ -740,7 +741,7 @@ int main(int argc, char *argv[])
 	 * - i.MX6 SPI NOR boot corrupts the last few bytes of an image loaded
 	 *   in ver funy ways when the image size is not 4 byte aligned
 	 */
-	load_size = ((image_size + HEADER_LEN) + 0xfff) & ~0xfff;
+	load_size = roundup(image_size + HEADER_LEN, 0x1000);
 
 	if (cpu_type == 35)
 		load_size += HEADER_LEN;
-- 
2.1.4


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[PATCH 07/10] imx-image: pad generated image to 4k

[Marc Kleine-Budde]

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index ec2e8deb015b..1c032a3cb142 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -654,6 +654,7 @@ int main(int argc, char *argv[])
 	struct stat s;
 	int infd, outfd;
 	int dcd_only = 0;
+	int now = 0;
 
 	while ((opt = getopt(argc, argv, "c:hf:o:bd")) != -1) {
 		switch (opt) {
@@ -786,7 +787,7 @@ int main(int argc, char *argv[])
 	}
 
 	while (image_size) {
-		int now = image_size < 4096 ? image_size : 4096;
+		now = image_size < 4096 ? image_size : 4096;
 
 		ret = xread(infd, buf, now);
 		if (ret) {
@@ -803,6 +804,18 @@ int main(int argc, char *argv[])
 		image_size -= now;
 	}
 
+	/* pad until next 4k boundary */
+	now = 4096 - now;
+	if (now) {
+		memset(buf, 0x5a, now);
+
+		ret = xwrite(outfd, buf, now);
+		if (ret) {
+			perror("write");
+			exit(1);
+		}
+	}
+
 	ret = close(outfd);
 	if (ret) {
 		perror("close");
-- 
2.1.4


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[PATCH 08/10] imx-image: add option to prepare image for HAB signing

[Marc Kleine-Budde]

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 scripts/imx/imx-image.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/scripts/imx/imx-image.c b/scripts/imx/imx-image.c
index 1c032a3cb142..b3c77927b555 100644
--- a/scripts/imx/imx-image.c
+++ b/scripts/imx/imx-image.c
@@ -34,6 +34,7 @@
 
 #define MAX_DCD 1024
 #define HEADER_LEN 0x1000	/* length of the blank area + IVT + DCD */
+#define CSF_LEN 0x2000		/* length of the CSF (needed for HAB) */
 
 static uint32_t image_load_addr;
 static uint32_t image_dcd_offset;
@@ -42,6 +43,7 @@ static int curdcd;
 static int header_version;
 static int cpu_type;
 static int add_barebox_header;
+static int prepare_sign;
 
 /*
  * ============================================================================
@@ -195,6 +197,11 @@ static int add_header_v2(void *buf, int offset, uint32_t loadaddr, uint32_t imag
 	hdr->boot_data.start	= loadaddr;
 	hdr->boot_data.size	= imagesize;
 
+	if (prepare_sign) {
+		hdr->csf = loadaddr + imagesize;
+		hdr->boot_data.size += CSF_LEN;
+	}
+
 	hdr->dcd_header.tag	= TAG_DCD_HEADER;
 	hdr->dcd_header.length	= htobe16(sizeof(uint32_t) + dcdsize);
 	hdr->dcd_header.version	= DCD_VERSION;
@@ -215,6 +222,7 @@ static void usage(const char *prgname)
 		"-b           add barebox header to image. If used, barebox recognizes\n"
 		"             the image as regular barebox image which can be used as\n"
 		"             second stage image\n"
+		"-p           prepare image for signing\n"
 		"-h           this help\n", prgname);
 	exit(1);
 }
@@ -656,7 +664,7 @@ int main(int argc, char *argv[])
 	int dcd_only = 0;
 	int now = 0;
 
-	while ((opt = getopt(argc, argv, "c:hf:o:bd")) != -1) {
+	while ((opt = getopt(argc, argv, "c:hf:o:bdp")) != -1) {
 		switch (opt) {
 		case 'c':
 			configfile = optarg;
@@ -673,6 +681,9 @@ int main(int argc, char *argv[])
 		case 'd':
 			dcd_only = 1;
 			break;
+		case 'p':
+			prepare_sign = 1;
+			break;
 		case 'h':
 			usage(argv[0]);
 		default:
-- 
2.1.4


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[PATCH 09/10] images: add HABv4 support for i.MX6

[Marc Kleine-Budde]

This patch adds high assurance boot support (HABv4) image generation to
barebox, currently tested on i.MX6 only.

In order to build a singed barebox image, add a new image target to
images/Makefile.imx as illustrated in the diff below:

--- a/images/Makefile.imx
+++ b/images/Makefile.imx
@@ -163,10 +163,14 @@ image-$(CONFIG_MACH_SABRELITE) += barebox-freescale-imx6dl-sabrelite.img
 pblx-$(CONFIG_MACH_SABRESD) += start_imx6q_sabresd
 CFG_start_imx6q_sabresd.pblx.imximg = $(board)/freescale-mx6-sabresd/flash-header-mx6-sabresd.imxcfg
 FILE_barebox-freescale-imx6q-sabresd.img = start_imx6q_sabresd.pblx.imximg
 image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd.img

+CSF_start_imx6q_sabresd.pblx.imximg = $(havb4_imx6csf)
+FILE_barebox-freescale-imx6q-sabresd-signed.img = start_imx6q_sabresd.pblx.imximg.signed
+image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd-signed.img
+

Here the defaut i.MX6 CSF file $(havb4_imx6csf) is used, it's generated during
build on from the template "scripts/habv4/habv4-imx6.csf.in". You can configure
the paths to the SRK table and certificates via: System Type -> i.MX specific
settings -> HABv4 support.

The proprietary tool "cst" by Freescale tool is expected in the PATH.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 arch/arm/mach-imx/Kconfig        | 39 ++++++++++++++++++++++++++++++++
 images/.gitignore                |  2 ++
 images/Makefile                  |  1 +
 images/Makefile.habv4            | 48 ++++++++++++++++++++++++++++++++++++++++
 scripts/habv4/gencsf.sh          | 47 +++++++++++++++++++++++++++++++++++++++
 scripts/habv4/habv4-imx28.csf.in | 28 +++++++++++++++++++++++
 scripts/habv4/habv4-imx6.csf.in  | 37 +++++++++++++++++++++++++++++++
 7 files changed, 202 insertions(+)
 create mode 100644 images/Makefile.habv4
 create mode 100755 scripts/habv4/gencsf.sh
 create mode 100644 scripts/habv4/habv4-imx28.csf.in
 create mode 100644 scripts/habv4/habv4-imx6.csf.in

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 4d257a87a60c..e44a033f20b6 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -675,6 +675,45 @@ config IMX_OCOTP_WRITE
 		mw -l -d /dev/imx-ocotp 0x8C 0x00001234
 		mw -l -d /dev/imx-ocotp 0x88 0x56789ABC
 
+config HABV4
+	tristate "HABv4 support"
+	help
+	  High Assurance Boot, as found on i.MX28/i.MX6.
+
+if HABV4
+
+config HABV4_TABLE_BIN
+	string "Path to SRK table"
+	default "../crts/SRK_1_2_3_4_table.bin"
+	help
+	  Path to the Super Root Key (SRK) table, produced by the
+	  Freescale Code Signing Tool (cst).
+
+	  This file will be inserted into to Command Sequence File
+	  (CSF) when using the CSF template that comes with barebox.
+
+config HABV4_CSF_CRT_PEM
+	string "Path to CSF certificate"
+	default "../crts/CSF1_1_sha256_4096_65537_v3_usr_crt.pem"
+	help
+	  Path to the Command Sequence File (CSF) certificate, produced by the
+	  Freescale Public Key Infrastructure (PKI) script.
+
+	  This file will be inserted into to Command Sequence File
+	  (CSF) when using the CSF template that comes with barebox.
+
+config HABV4_IMG_CRT_PEM
+	string "Path to IMG certificate"
+	default "../crts/IMG_1_sha256_4096_65537_v3_usr_crt.pem"
+	help
+	  Path to the Image certificate, produced by the Freescale
+	  Public Key Infrastructure (PKI) script.
+
+	  This file will be inserted into to Command Sequence File
+	  (CSF) when using the CSF template that comes with barebox.
+
+endif
+
 endmenu
 
 endif
diff --git a/images/.gitignore b/images/.gitignore
index c5377d9f6531..b5004fe48fd6 100644
--- a/images/.gitignore
+++ b/images/.gitignore
@@ -3,6 +3,8 @@
 *.pblb
 *.img
 *.imximg
+*.imximg.prep
+*.imximg.signed
 *.map
 *.src
 *.kwbimg
diff --git a/images/Makefile b/images/Makefile
index c01179081d92..ca053f36bb46 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -107,6 +107,7 @@ include $(srctree)/images/Makefile.rockchip
 include $(srctree)/images/Makefile.socfpga
 include $(srctree)/images/Makefile.tegra
 include $(srctree)/images/Makefile.mxs
+include $(srctree)/images/Makefile.habv4
 
 targets += $(image-y) pbl.lds barebox.x barebox.z
 targets += $(patsubst %,%.pblx,$(pblx-y))
diff --git a/images/Makefile.habv4 b/images/Makefile.habv4
new file mode 100644
index 000000000000..bb2fd3082639
--- /dev/null
+++ b/images/Makefile.habv4
@@ -0,0 +1,48 @@
+# -*-makefile-*-
+#
+# barebox image generation Makefile for HABv4 images
+#
+
+# default csf templates
+havb4_imx6csf = $(srctree)/scripts/habv4/habv4-imx6.csf.in
+habv4_imx2csf = $(srctree)/scripts/habv4/habv4-imx28.csf.in
+
+# %.imximg.prep - Convert in i.MX image, with preparation for signature
+# ----------------------------------------------------------------
+quiet_cmd_imx_prep_image = IMX-PREP-IMG $@
+      cmd_imx_prep_image = $(CPP) $(imxcfg_cpp_flags) -o $(imximg-tmp) $(word 2,$^) ; \
+			   $< -o $@ -b -c $(imximg-tmp) -p -f $(word 3,$^)
+
+.SECONDEXPANSION:
+$(obj)/%.imximg.prep: $(objtree)/scripts/imx/imx-image $$(CFG_%.imximg) $(obj)/%
+	$(call if_changed,imx_prep_image)
+
+# %.habv4.csf - create Command Sequence File from template
+# ----------------------------------------------------------------
+quiet_cmd_csf = CSF     $@
+      cmd_csf = TABLE_BIN=$(CONFIG_HABV4_TABLE_BIN) \
+		CSF_CRT_PEM=$(CONFIG_HABV4_CSF_CRT_PEM) \
+		IMG_CRT_PEM=$(CONFIG_HABV4_IMG_CRT_PEM) \
+		$< -f $(word 2,$^) -c $(word 3,$^) -i $(word 4,$^) -o $@
+
+.SECONDEXPANSION:
+$(obj)/%.habv4.csf: $(srctree)/scripts/habv4/gencsf.sh $(obj)/%.prep $$(CFG_%) $$(CSF_%)
+	$(call if_changed,csf)
+
+# %.habv4.sig - create signature and pad to 0x2000
+# ----------------------------------------------------------------
+CST = cst
+quiet_cmd_habv4_sig = HAB4SIG $@
+      cmd_habv4_sig = $(CST) -o $(imximg-tmp) < $(word 2,$^) > /dev/null; \
+		      $(OBJCOPY) -I binary -O binary --pad-to 0x2000 --gap-fill=0x5a $(imximg-tmp) $@
+
+$(obj)/%.habv4.sig: $(obj)/%.prep $(obj)/%.habv4.csf
+	$(call if_changed,habv4_sig)
+
+# %.imximg.singed - concatinate bootloader and signature
+# ----------------------------------------------------------------
+quiet_cmd_cat = CAT     $@
+      cmd_cat = cat $^ > $@
+
+$(obj)/%.imximg.signed: $(obj)/%.imximg.prep $(obj)/%.imximg.habv4.sig
+	$(call if_changed,cat)
diff --git a/scripts/habv4/gencsf.sh b/scripts/habv4/gencsf.sh
new file mode 100755
index 000000000000..2c1c34add43a
--- /dev/null
+++ b/scripts/habv4/gencsf.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+set -e
+
+while getopts "f:c:i:o:" opt; do
+    case $opt in
+	f)
+	    file=$OPTARG
+	    ;;
+	c)
+	    cfg=$OPTARG
+	    ;;
+	i)
+	    in=$OPTARG
+	    ;;
+	o)
+	    out=$OPTARG
+	    ;;
+	\?)
+	    echo "Invalid option: -$OPTARG" >&2
+	    exit 1
+	;;
+    esac
+done
+
+if [ ! -e $file -o ! -e $cfg -o ! -e $in ]; then
+    echo "file not found!"
+    exit 1
+fi
+
+#
+# extract and set as shell vars:
+# loadaddr=
+# dcdofs=
+#
+eval $(sed -n -e "s/^[[:space:]]*\(loadaddr\|dcdofs\)[[:space:]]*\(0x[0-9]*\)/\1=\2/p" $cfg)
+
+length=$(stat -c '%s' $file)
+
+sed -e "s:@TABLE_BIN@:$TABLE_BIN:" \
+    -e "s:@CSF_CRT_PEM@:$CSF_CRT_PEM:" \
+    -e "s:@IMG_CRT_PEM@:$IMG_CRT_PEM:" \
+    -e "s:@LOADADDR@:$loadaddr:" \
+    -e "s:@OFFSET@:0:" \
+    -e "s:@LENGTH@:$length:" \
+    -e "s:@FILE@:$file:" \
+    $in > $out
diff --git a/scripts/habv4/habv4-imx28.csf.in b/scripts/habv4/habv4-imx28.csf.in
new file mode 100644
index 000000000000..043602e09ba4
--- /dev/null
+++ b/scripts/habv4/habv4-imx28.csf.in
@@ -0,0 +1,28 @@
+[Header]
+Version = 4.0
+Hash Algorithm = sha256
+Engine Configuration = 0
+Certificate Format = X509
+Signature Format = CMS
+
+[Install SRK]
+File = "@TABLE_BIN@"
+Source index = 0
+
+[Install CSFK]
+File = "@CSF_CRT_PEM@"
+
+[Authenticate CSF]
+
+[Install Key]
+Verification index = 0
+Target index = 2
+File = "@IMG_CRT_PEM@"
+
+# Sign entire image
+# Blocks have the following definition:
+# Base address of the binary file, Offset, Length of block in bytes
+[Authenticate Data]
+Verification index = 2
+Engine = DCP
+Blocks = @LOADADDR@ @OFFSET@ @LENGTH@ "@FILE@"
diff --git a/scripts/habv4/habv4-imx6.csf.in b/scripts/habv4/habv4-imx6.csf.in
new file mode 100644
index 000000000000..11a5db94946c
--- /dev/null
+++ b/scripts/habv4/habv4-imx6.csf.in
@@ -0,0 +1,37 @@
+[Header]
+Version = 4.1
+Hash Algorithm = sha256
+Engine Configuration = 0
+Certificate Format = X509
+Signature Format = CMS
+Engine = CAAM
+
+[Install SRK]
+File = "@TABLE_BIN@"
+# SRK index within SRK-Table 0..3
+Source index = 0
+
+[Install CSFK]
+File = "@CSF_CRT_PEM@"
+
+[Authenticate CSF]
+
+[Unlock]
+Engine = CAAM
+Features = RNG
+
+[Install Key]
+# verification key index in key store (0, 2...5)
+Verification index = 0
+# target key index in key store (2...5)
+Target index = 2
+File = "@IMG_CRT_PEM@"
+
+[Authenticate Data]
+# verification key index in key store (2...5)
+Verification index = 2
+# "starting load address in memory"
+# "starting offset within the source file"
+# "length (in bytes)"
+# "file (binary)"
+Blocks = @LOADADDR@ @OFFSET@ @LENGTH@ "@FILE@"
-- 
2.1.4


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Re: [PATCH 09/10] images: add HABv4 support for i.MX6

[Marc Kleine-Budde]

[-- Attachment #1.1: Type: text/plain, Size: 1405 bytes --]

On 04/01/2015 06:14 PM, Marc Kleine-Budde wrote:
> This patch adds high assurance boot support (HABv4) image generation to
> barebox, currently tested on i.MX6 only.
> 
> In order to build a singed barebox image, add a new image target to
> images/Makefile.imx as illustrated in the diff below:
> 
> --- a/images/Makefile.imx
> +++ b/images/Makefile.imx
> @@ -163,10 +163,14 @@ image-$(CONFIG_MACH_SABRELITE) += barebox-freescale-imx6dl-sabrelite.img
>  pblx-$(CONFIG_MACH_SABRESD) += start_imx6q_sabresd
>  CFG_start_imx6q_sabresd.pblx.imximg = $(board)/freescale-mx6-sabresd/flash-header-mx6-sabresd.imxcfg
>  FILE_barebox-freescale-imx6q-sabresd.img = start_imx6q_sabresd.pblx.imximg
>  image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd.img
> 
> +CSF_start_imx6q_sabresd.pblx.imximg = $(havb4_imx6csf)
> +FILE_barebox-freescale-imx6q-sabresd-signed.img = start_imx6q_sabresd.pblx.imximg.signed
> +image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd-signed.img
> +
I hope git will not try to appy this patch in the description :D - I
should have removed the --- and +++.

Marc

-- 
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


[-- Attachment #1.2: OpenPGP digital signature --]
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[PATCH v2] images: add HABv4 support for i.MX6

[Marc Kleine-Budde]

This patch adds high assurance boot support (HABv4) image generation to
barebox, currently tested on i.MX6 only.

In order to build a singed barebox image, add a new image target to
images/Makefile.imx as illustrated in the diff below:

- - - a/images/Makefile.imx
+ + + b/images/Makefile.imx
@@ -163,10 +163,14 @@ image-$(CONFIG_MACH_SABRELITE) += barebox-freescale-imx6dl-sabrelite.img
 pblx-$(CONFIG_MACH_SABRESD) += start_imx6q_sabresd
 CFG_start_imx6q_sabresd.pblx.imximg = $(board)/freescale-mx6-sabresd/flash-header-mx6-sabresd.imxcfg
 FILE_barebox-freescale-imx6q-sabresd.img = start_imx6q_sabresd.pblx.imximg
 image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd.img

+CSF_start_imx6q_sabresd.pblx.imximg = $(havb4_imx6csf)
+FILE_barebox-freescale-imx6q-sabresd-signed.img = start_imx6q_sabresd.pblx.imximg.signed
+image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd-signed.img
+

Here the defaut i.MX6 CSF file $(havb4_imx6csf) is used, it's generated during
build on from the template "scripts/habv4/habv4-imx6.csf.in". You can configure
the paths to the SRK table and certificates via: System Type -> i.MX specific
settings -> HABv4 support.

The proprietary tool "cst" by Freescale tool is expected in the PATH.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
This time with a harmless patch description, so that it's not confused with the
real patch.

 arch/arm/mach-imx/Kconfig        | 39 ++++++++++++++++++++++++++++++++
 images/.gitignore                |  2 ++
 images/Makefile                  |  1 +
 images/Makefile.habv4            | 48 ++++++++++++++++++++++++++++++++++++++++
 scripts/habv4/gencsf.sh          | 47 +++++++++++++++++++++++++++++++++++++++
 scripts/habv4/habv4-imx28.csf.in | 28 +++++++++++++++++++++++
 scripts/habv4/habv4-imx6.csf.in  | 37 +++++++++++++++++++++++++++++++
 7 files changed, 202 insertions(+)
 create mode 100644 images/Makefile.habv4
 create mode 100755 scripts/habv4/gencsf.sh
 create mode 100644 scripts/habv4/habv4-imx28.csf.in
 create mode 100644 scripts/habv4/habv4-imx6.csf.in

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 477207e646cd..f896b86d357d 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -676,6 +676,45 @@ config IMX_OCOTP_WRITE
 		mw -l -d /dev/imx-ocotp 0x8C 0x00001234
 		mw -l -d /dev/imx-ocotp 0x88 0x56789ABC
 
+config HABV4
+	tristate "HABv4 support"
+	help
+	  High Assurance Boot, as found on i.MX28/i.MX6.
+
+if HABV4
+
+config HABV4_TABLE_BIN
+	string "Path to SRK table"
+	default "../crts/SRK_1_2_3_4_table.bin"
+	help
+	  Path to the Super Root Key (SRK) table, produced by the
+	  Freescale Code Signing Tool (cst).
+
+	  This file will be inserted into to Command Sequence File
+	  (CSF) when using the CSF template that comes with barebox.
+
+config HABV4_CSF_CRT_PEM
+	string "Path to CSF certificate"
+	default "../crts/CSF1_1_sha256_4096_65537_v3_usr_crt.pem"
+	help
+	  Path to the Command Sequence File (CSF) certificate, produced by the
+	  Freescale Public Key Infrastructure (PKI) script.
+
+	  This file will be inserted into to Command Sequence File
+	  (CSF) when using the CSF template that comes with barebox.
+
+config HABV4_IMG_CRT_PEM
+	string "Path to IMG certificate"
+	default "../crts/IMG_1_sha256_4096_65537_v3_usr_crt.pem"
+	help
+	  Path to the Image certificate, produced by the Freescale
+	  Public Key Infrastructure (PKI) script.
+
+	  This file will be inserted into to Command Sequence File
+	  (CSF) when using the CSF template that comes with barebox.
+
+endif
+
 endmenu
 
 endif
diff --git a/images/.gitignore b/images/.gitignore
index c5377d9f6531..b5004fe48fd6 100644
--- a/images/.gitignore
+++ b/images/.gitignore
@@ -3,6 +3,8 @@
 *.pblb
 *.img
 *.imximg
+*.imximg.prep
+*.imximg.signed
 *.map
 *.src
 *.kwbimg
diff --git a/images/Makefile b/images/Makefile
index 7c3aaf762767..d670ce6df1e3 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -104,6 +104,7 @@ include $(srctree)/images/Makefile.rockchip
 include $(srctree)/images/Makefile.socfpga
 include $(srctree)/images/Makefile.tegra
 include $(srctree)/images/Makefile.mxs
+include $(srctree)/images/Makefile.habv4
 
 targets += $(image-y) pbl.lds barebox.x barebox.z
 targets += $(patsubst %,%.pblx,$(pblx-y))
diff --git a/images/Makefile.habv4 b/images/Makefile.habv4
new file mode 100644
index 000000000000..bb2fd3082639
--- /dev/null
+++ b/images/Makefile.habv4
@@ -0,0 +1,48 @@
+# -*-makefile-*-
+#
+# barebox image generation Makefile for HABv4 images
+#
+
+# default csf templates
+havb4_imx6csf = $(srctree)/scripts/habv4/habv4-imx6.csf.in
+habv4_imx2csf = $(srctree)/scripts/habv4/habv4-imx28.csf.in
+
+# %.imximg.prep - Convert in i.MX image, with preparation for signature
+# ----------------------------------------------------------------
+quiet_cmd_imx_prep_image = IMX-PREP-IMG $@
+      cmd_imx_prep_image = $(CPP) $(imxcfg_cpp_flags) -o $(imximg-tmp) $(word 2,$^) ; \
+			   $< -o $@ -b -c $(imximg-tmp) -p -f $(word 3,$^)
+
+.SECONDEXPANSION:
+$(obj)/%.imximg.prep: $(objtree)/scripts/imx/imx-image $$(CFG_%.imximg) $(obj)/%
+	$(call if_changed,imx_prep_image)
+
+# %.habv4.csf - create Command Sequence File from template
+# ----------------------------------------------------------------
+quiet_cmd_csf = CSF     $@
+      cmd_csf = TABLE_BIN=$(CONFIG_HABV4_TABLE_BIN) \
+		CSF_CRT_PEM=$(CONFIG_HABV4_CSF_CRT_PEM) \
+		IMG_CRT_PEM=$(CONFIG_HABV4_IMG_CRT_PEM) \
+		$< -f $(word 2,$^) -c $(word 3,$^) -i $(word 4,$^) -o $@
+
+.SECONDEXPANSION:
+$(obj)/%.habv4.csf: $(srctree)/scripts/habv4/gencsf.sh $(obj)/%.prep $$(CFG_%) $$(CSF_%)
+	$(call if_changed,csf)
+
+# %.habv4.sig - create signature and pad to 0x2000
+# ----------------------------------------------------------------
+CST = cst
+quiet_cmd_habv4_sig = HAB4SIG $@
+      cmd_habv4_sig = $(CST) -o $(imximg-tmp) < $(word 2,$^) > /dev/null; \
+		      $(OBJCOPY) -I binary -O binary --pad-to 0x2000 --gap-fill=0x5a $(imximg-tmp) $@
+
+$(obj)/%.habv4.sig: $(obj)/%.prep $(obj)/%.habv4.csf
+	$(call if_changed,habv4_sig)
+
+# %.imximg.singed - concatinate bootloader and signature
+# ----------------------------------------------------------------
+quiet_cmd_cat = CAT     $@
+      cmd_cat = cat $^ > $@
+
+$(obj)/%.imximg.signed: $(obj)/%.imximg.prep $(obj)/%.imximg.habv4.sig
+	$(call if_changed,cat)
diff --git a/scripts/habv4/gencsf.sh b/scripts/habv4/gencsf.sh
new file mode 100755
index 000000000000..2c1c34add43a
--- /dev/null
+++ b/scripts/habv4/gencsf.sh
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+set -e
+
+while getopts "f:c:i:o:" opt; do
+    case $opt in
+	f)
+	    file=$OPTARG
+	    ;;
+	c)
+	    cfg=$OPTARG
+	    ;;
+	i)
+	    in=$OPTARG
+	    ;;
+	o)
+	    out=$OPTARG
+	    ;;
+	\?)
+	    echo "Invalid option: -$OPTARG" >&2
+	    exit 1
+	;;
+    esac
+done
+
+if [ ! -e $file -o ! -e $cfg -o ! -e $in ]; then
+    echo "file not found!"
+    exit 1
+fi
+
+#
+# extract and set as shell vars:
+# loadaddr=
+# dcdofs=
+#
+eval $(sed -n -e "s/^[[:space:]]*\(loadaddr\|dcdofs\)[[:space:]]*\(0x[0-9]*\)/\1=\2/p" $cfg)
+
+length=$(stat -c '%s' $file)
+
+sed -e "s:@TABLE_BIN@:$TABLE_BIN:" \
+    -e "s:@CSF_CRT_PEM@:$CSF_CRT_PEM:" \
+    -e "s:@IMG_CRT_PEM@:$IMG_CRT_PEM:" \
+    -e "s:@LOADADDR@:$loadaddr:" \
+    -e "s:@OFFSET@:0:" \
+    -e "s:@LENGTH@:$length:" \
+    -e "s:@FILE@:$file:" \
+    $in > $out
diff --git a/scripts/habv4/habv4-imx28.csf.in b/scripts/habv4/habv4-imx28.csf.in
new file mode 100644
index 000000000000..043602e09ba4
--- /dev/null
+++ b/scripts/habv4/habv4-imx28.csf.in
@@ -0,0 +1,28 @@
+[Header]
+Version = 4.0
+Hash Algorithm = sha256
+Engine Configuration = 0
+Certificate Format = X509
+Signature Format = CMS
+
+[Install SRK]
+File = "@TABLE_BIN@"
+Source index = 0
+
+[Install CSFK]
+File = "@CSF_CRT_PEM@"
+
+[Authenticate CSF]
+
+[Install Key]
+Verification index = 0
+Target index = 2
+File = "@IMG_CRT_PEM@"
+
+# Sign entire image
+# Blocks have the following definition:
+# Base address of the binary file, Offset, Length of block in bytes
+[Authenticate Data]
+Verification index = 2
+Engine = DCP
+Blocks = @LOADADDR@ @OFFSET@ @LENGTH@ "@FILE@"
diff --git a/scripts/habv4/habv4-imx6.csf.in b/scripts/habv4/habv4-imx6.csf.in
new file mode 100644
index 000000000000..11a5db94946c
--- /dev/null
+++ b/scripts/habv4/habv4-imx6.csf.in
@@ -0,0 +1,37 @@
+[Header]
+Version = 4.1
+Hash Algorithm = sha256
+Engine Configuration = 0
+Certificate Format = X509
+Signature Format = CMS
+Engine = CAAM
+
+[Install SRK]
+File = "@TABLE_BIN@"
+# SRK index within SRK-Table 0..3
+Source index = 0
+
+[Install CSFK]
+File = "@CSF_CRT_PEM@"
+
+[Authenticate CSF]
+
+[Unlock]
+Engine = CAAM
+Features = RNG
+
+[Install Key]
+# verification key index in key store (0, 2...5)
+Verification index = 0
+# target key index in key store (2...5)
+Target index = 2
+File = "@IMG_CRT_PEM@"
+
+[Authenticate Data]
+# verification key index in key store (2...5)
+Verification index = 2
+# "starting load address in memory"
+# "starting offset within the source file"
+# "length (in bytes)"
+# "file (binary)"
+Blocks = @LOADADDR@ @OFFSET@ @LENGTH@ "@FILE@"
-- 
2.1.4


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Re: [PATCH v2] images: add HABv4 support for i.MX6

[Sascha Hauer]

Hi Marc,

Looks mostly fine. Some minor stuff inside, mostly typos.

Sascha

On Wed, Apr 01, 2015 at 09:39:29PM +0200, Marc Kleine-Budde wrote:
> This patch adds high assurance boot support (HABv4) image generation to
> barebox, currently tested on i.MX6 only.
> 
> In order to build a singed barebox image, add a new image target to

s/singed/signed/

> images/Makefile.imx as illustrated in the diff below:
> 
> - - - a/images/Makefile.imx
> + + + b/images/Makefile.imx
> @@ -163,10 +163,14 @@ image-$(CONFIG_MACH_SABRELITE) += barebox-freescale-imx6dl-sabrelite.img
>  pblx-$(CONFIG_MACH_SABRESD) += start_imx6q_sabresd
>  CFG_start_imx6q_sabresd.pblx.imximg = $(board)/freescale-mx6-sabresd/flash-header-mx6-sabresd.imxcfg
>  FILE_barebox-freescale-imx6q-sabresd.img = start_imx6q_sabresd.pblx.imximg
>  image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd.img
> 
> +CSF_start_imx6q_sabresd.pblx.imximg = $(havb4_imx6csf)
> +FILE_barebox-freescale-imx6q-sabresd-signed.img = start_imx6q_sabresd.pblx.imximg.signed
> +image-$(CONFIG_MACH_SABRESD) += barebox-freescale-imx6q-sabresd-signed.img
> +
> 
> Here the defaut i.MX6 CSF file $(havb4_imx6csf) is used, it's generated during

s/defaut/default/

> build on from the template "scripts/habv4/habv4-imx6.csf.in". You can configure
> the paths to the SRK table and certificates via: System Type -> i.MX specific
> settings -> HABv4 support.
> 
> The proprietary tool "cst" by Freescale tool is expected in the PATH.
> 
> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
> ---
> This time with a harmless patch description, so that it's not confused with the
> real patch.
> 
>  arch/arm/mach-imx/Kconfig        | 39 ++++++++++++++++++++++++++++++++
>  images/.gitignore                |  2 ++
>  images/Makefile                  |  1 +
>  images/Makefile.habv4            | 48 ++++++++++++++++++++++++++++++++++++++++
>  scripts/habv4/gencsf.sh          | 47 +++++++++++++++++++++++++++++++++++++++
>  scripts/habv4/habv4-imx28.csf.in | 28 +++++++++++++++++++++++
>  scripts/habv4/habv4-imx6.csf.in  | 37 +++++++++++++++++++++++++++++++
>  7 files changed, 202 insertions(+)
>  create mode 100644 images/Makefile.habv4
>  create mode 100755 scripts/habv4/gencsf.sh
>  create mode 100644 scripts/habv4/habv4-imx28.csf.in
>  create mode 100644 scripts/habv4/habv4-imx6.csf.in
> 
> diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
> index 477207e646cd..f896b86d357d 100644
> --- a/arch/arm/mach-imx/Kconfig
> +++ b/arch/arm/mach-imx/Kconfig
> @@ -676,6 +676,45 @@ config IMX_OCOTP_WRITE
>  		mw -l -d /dev/imx-ocotp 0x8C 0x00001234
>  		mw -l -d /dev/imx-ocotp 0x88 0x56789ABC
>  
> +config HABV4
> +	tristate "HABv4 support"
> +	help
> +	  High Assurance Boot, as found on i.MX28/i.MX6.

depends on ARCH_IMX6?

> +
> +if HABV4
> +
> +config HABV4_TABLE_BIN
> +	string "Path to SRK table"
> +	default "../crts/SRK_1_2_3_4_table.bin"
> +	help
> +	  Path to the Super Root Key (SRK) table, produced by the
> +	  Freescale Code Signing Tool (cst).
> +
> +	  This file will be inserted into to Command Sequence File

s/to/the/

> +	  (CSF) when using the CSF template that comes with barebox.
> +
> +config HABV4_CSF_CRT_PEM
> +	string "Path to CSF certificate"
> +	default "../crts/CSF1_1_sha256_4096_65537_v3_usr_crt.pem"
> +	help
> +	  Path to the Command Sequence File (CSF) certificate, produced by the
> +	  Freescale Public Key Infrastructure (PKI) script.
> +
> +	  This file will be inserted into to Command Sequence File

s/to/the/

> +	  (CSF) when using the CSF template that comes with barebox.
> +
> +config HABV4_IMG_CRT_PEM
> +	string "Path to IMG certificate"
> +	default "../crts/IMG_1_sha256_4096_65537_v3_usr_crt.pem"
> +	help
> +	  Path to the Image certificate, produced by the Freescale
> +	  Public Key Infrastructure (PKI) script.
> +
> +	  This file will be inserted into to Command Sequence File

s/to/the/

> +	  (CSF) when using the CSF template that comes with barebox.
> +
> +endif
> +
>  endmenu
>  
>  endif
> diff --git a/images/.gitignore b/images/.gitignore
> index c5377d9f6531..b5004fe48fd6 100644
> --- a/images/.gitignore
> +++ b/images/.gitignore
> @@ -3,6 +3,8 @@
>  *.pblb
>  *.img
>  *.imximg
> +*.imximg.prep
> +*.imximg.signed
>  *.map
>  *.src
>  *.kwbimg
> diff --git a/images/Makefile b/images/Makefile
> index 7c3aaf762767..d670ce6df1e3 100644
> --- a/images/Makefile
> +++ b/images/Makefile
> @@ -104,6 +104,7 @@ include $(srctree)/images/Makefile.rockchip
>  include $(srctree)/images/Makefile.socfpga
>  include $(srctree)/images/Makefile.tegra
>  include $(srctree)/images/Makefile.mxs
> +include $(srctree)/images/Makefile.habv4
>  
>  targets += $(image-y) pbl.lds barebox.x barebox.z
>  targets += $(patsubst %,%.pblx,$(pblx-y))
> diff --git a/images/Makefile.habv4 b/images/Makefile.habv4

Maybe name this Makefile.imxhabv4 to make clear this file is about i.MX.

> new file mode 100644
> index 000000000000..bb2fd3082639
> --- /dev/null
> +++ b/images/Makefile.habv4
> @@ -0,0 +1,48 @@
> +# -*-makefile-*-
> +#
> +# barebox image generation Makefile for HABv4 images
> +#
> +
> +# default csf templates
> +havb4_imx6csf = $(srctree)/scripts/habv4/habv4-imx6.csf.in
> +habv4_imx2csf = $(srctree)/scripts/habv4/habv4-imx28.csf.in
> +
> +# %.imximg.prep - Convert in i.MX image, with preparation for signature
> +# ----------------------------------------------------------------
> +quiet_cmd_imx_prep_image = IMX-PREP-IMG $@
> +      cmd_imx_prep_image = $(CPP) $(imxcfg_cpp_flags) -o $(imximg-tmp) $(word 2,$^) ; \
> +			   $< -o $@ -b -c $(imximg-tmp) -p -f $(word 3,$^)
> +
> +.SECONDEXPANSION:
> +$(obj)/%.imximg.prep: $(objtree)/scripts/imx/imx-image $$(CFG_%.imximg) $(obj)/%
> +	$(call if_changed,imx_prep_image)
> +
> +# %.habv4.csf - create Command Sequence File from template
> +# ----------------------------------------------------------------
> +quiet_cmd_csf = CSF     $@
> +      cmd_csf = TABLE_BIN=$(CONFIG_HABV4_TABLE_BIN) \
> +		CSF_CRT_PEM=$(CONFIG_HABV4_CSF_CRT_PEM) \
> +		IMG_CRT_PEM=$(CONFIG_HABV4_IMG_CRT_PEM) \
> +		$< -f $(word 2,$^) -c $(word 3,$^) -i $(word 4,$^) -o $@
> +
> +.SECONDEXPANSION:
> +$(obj)/%.habv4.csf: $(srctree)/scripts/habv4/gencsf.sh $(obj)/%.prep $$(CFG_%) $$(CSF_%)
> +	$(call if_changed,csf)
> +
> +# %.habv4.sig - create signature and pad to 0x2000
> +# ----------------------------------------------------------------
> +CST = cst
> +quiet_cmd_habv4_sig = HAB4SIG $@
> +      cmd_habv4_sig = $(CST) -o $(imximg-tmp) < $(word 2,$^) > /dev/null; \
> +		      $(OBJCOPY) -I binary -O binary --pad-to 0x2000 --gap-fill=0x5a $(imximg-tmp) $@
> +
> +$(obj)/%.habv4.sig: $(obj)/%.prep $(obj)/%.habv4.csf
> +	$(call if_changed,habv4_sig)
> +
> +# %.imximg.singed - concatinate bootloader and signature

s/singed/signed/
s/concatinate/concatenate/

> +# ----------------------------------------------------------------
> +quiet_cmd_cat = CAT     $@
> +      cmd_cat = cat $^ > $@
> +
> +$(obj)/%.imximg.signed: $(obj)/%.imximg.prep $(obj)/%.imximg.habv4.sig
> +	$(call if_changed,cat)
> diff --git a/scripts/habv4/gencsf.sh b/scripts/habv4/gencsf.sh
> new file mode 100755
> index 000000000000..2c1c34add43a
> --- /dev/null
> +++ b/scripts/habv4/gencsf.sh
> @@ -0,0 +1,47 @@
> +#!/bin/sh
> +
> +set -e
> +
> +while getopts "f:c:i:o:" opt; do
> +    case $opt in
> +	f)
> +	    file=$OPTARG
> +	    ;;
> +	c)
> +	    cfg=$OPTARG
> +	    ;;
> +	i)
> +	    in=$OPTARG
> +	    ;;
> +	o)
> +	    out=$OPTARG
> +	    ;;
> +	\?)
> +	    echo "Invalid option: -$OPTARG" >&2
> +	    exit 1
> +	;;
> +    esac
> +done
> +
> +if [ ! -e $file -o ! -e $cfg -o ! -e $in ]; then
> +    echo "file not found!"
> +    exit 1
> +fi
> +
> +#
> +# extract and set as shell vars:
> +# loadaddr=
> +# dcdofs=
> +#
> +eval $(sed -n -e "s/^[[:space:]]*\(loadaddr\|dcdofs\)[[:space:]]*\(0x[0-9]*\)/\1=\2/p" $cfg)
> +
> +length=$(stat -c '%s' $file)
> +
> +sed -e "s:@TABLE_BIN@:$TABLE_BIN:" \
> +    -e "s:@CSF_CRT_PEM@:$CSF_CRT_PEM:" \
> +    -e "s:@IMG_CRT_PEM@:$IMG_CRT_PEM:" \
> +    -e "s:@LOADADDR@:$loadaddr:" \
> +    -e "s:@OFFSET@:0:" \
> +    -e "s:@LENGTH@:$length:" \
> +    -e "s:@FILE@:$file:" \
> +    $in > $out
> diff --git a/scripts/habv4/habv4-imx28.csf.in b/scripts/habv4/habv4-imx28.csf.in
> new file mode 100644
> index 000000000000..043602e09ba4
> --- /dev/null
> +++ b/scripts/habv4/habv4-imx28.csf.in
> @@ -0,0 +1,28 @@
> +[Header]
> +Version = 4.0
> +Hash Algorithm = sha256
> +Engine Configuration = 0
> +Certificate Format = X509
> +Signature Format = CMS
> +
> +[Install SRK]
> +File = "@TABLE_BIN@"
> +Source index = 0
> +
> +[Install CSFK]
> +File = "@CSF_CRT_PEM@"
> +
> +[Authenticate CSF]
> +
> +[Install Key]
> +Verification index = 0
> +Target index = 2
> +File = "@IMG_CRT_PEM@"
> +
> +# Sign entire image
> +# Blocks have the following definition:
> +# Base address of the binary file, Offset, Length of block in bytes
> +[Authenticate Data]
> +Verification index = 2
> +Engine = DCP
> +Blocks = @LOADADDR@ @OFFSET@ @LENGTH@ "@FILE@"
> diff --git a/scripts/habv4/habv4-imx6.csf.in b/scripts/habv4/habv4-imx6.csf.in
> new file mode 100644
> index 000000000000..11a5db94946c
> --- /dev/null
> +++ b/scripts/habv4/habv4-imx6.csf.in
> @@ -0,0 +1,37 @@
> +[Header]
> +Version = 4.1
> +Hash Algorithm = sha256
> +Engine Configuration = 0
> +Certificate Format = X509
> +Signature Format = CMS
> +Engine = CAAM
> +
> +[Install SRK]
> +File = "@TABLE_BIN@"
> +# SRK index within SRK-Table 0..3
> +Source index = 0
> +
> +[Install CSFK]
> +File = "@CSF_CRT_PEM@"
> +
> +[Authenticate CSF]
> +
> +[Unlock]
> +Engine = CAAM
> +Features = RNG
> +
> +[Install Key]
> +# verification key index in key store (0, 2...5)
> +Verification index = 0
> +# target key index in key store (2...5)
> +Target index = 2
> +File = "@IMG_CRT_PEM@"
> +
> +[Authenticate Data]
> +# verification key index in key store (2...5)
> +Verification index = 2
> +# "starting load address in memory"
> +# "starting offset within the source file"
> +# "length (in bytes)"
> +# "file (binary)"
> +Blocks = @LOADADDR@ @OFFSET@ @LENGTH@ "@FILE@"
> -- 
> 2.1.4
> 
> 
> _______________________________________________
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> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
> 

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Re: [PATCH v2] images: add HABv4 support for i.MX6

[Marc Kleine-Budde]

[-- Attachment #1.1: Type: text/plain, Size: 632 bytes --]

On 04/13/2015 12:19 PM, Sascha Hauer wrote:
> Looks mostly fine. Some minor stuff inside, mostly typos.

Thnx, will fix.

>> diff --git a/images/Makefile.habv4 b/images/Makefile.habv4
> 
> Maybe name this Makefile.imxhabv4 to make clear this file is about i.MX.

Okay, if someone wants to add mx28 support it probably will go here, too.

Marc

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[PATCH 10/10] habv4: add High Assurance Boot v4

[Marc Kleine-Budde]

This patch adds the code to check the HAB ROM for failures during development.
Add a cal to "habv4_get_status();" to your board file, to get the current
system state from the ROM.

_NOTE_: On i.MX6 this has to happen before barebox starts the MMU, because the
        HAB ROM vector table is placed at 0x94, which is not accessible after the
	MMU has setup the zero page.

This patch contains code ported from u-boot patches [1][2] by Shaojun Wang [3]
which were found in the "Mx28 Secure Boot" and "Mx6 HAB (High Assurance Boot)"
thread on the freescale community forum [4][5].

[1] https://community.freescale.com/servlet/JiveServlet/download/370047-269174/0001-enable-mx28-u-boot-hab.patch.txt.zip
[1] https://community.freescale.com/servlet/JiveServlet/download/96451-11-266175/0001-u-boot-enable-mx6-hab.patch.zip
[2] https://community.freescale.com/people/ShaojunWang
[3] https://community.freescale.com/thread/317254
[3] https://community.freescale.com/docs/DOC-96451

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/Makefile       |   1 +
 drivers/habv4/Makefile |   1 +
 drivers/habv4/habv4.c  | 237 +++++++++++++++++++++++++++++++++++++++++++++++++
 include/habv4.h        |  23 +++++
 4 files changed, 262 insertions(+)
 create mode 100644 drivers/habv4/Makefile
 create mode 100644 drivers/habv4/habv4.c
 create mode 100644 include/habv4.h

diff --git a/drivers/Makefile b/drivers/Makefile
index 7ef5e90d80cf..3afbb61b2d3b 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -30,3 +30,4 @@ obj-$(CONFIG_PCI) += pci/
 obj-y += rtc/
 obj-$(CONFIG_FIRMWARE) += firmware/
 obj-$(CONFIG_GENERIC_PHY) += phy/
+obj-$(CONFIG_HABV4) += habv4/
diff --git a/drivers/habv4/Makefile b/drivers/habv4/Makefile
new file mode 100644
index 000000000000..40b3253147dd
--- /dev/null
+++ b/drivers/habv4/Makefile
@@ -0,0 +1 @@
+obj-y += habv4.o
diff --git a/drivers/habv4/habv4.c b/drivers/habv4/habv4.c
new file mode 100644
index 000000000000..cdd5d599ced5
--- /dev/null
+++ b/drivers/habv4/habv4.c
@@ -0,0 +1,237 @@
+/*
+ * Copyright (C) 2014, 2015 Marc Kleine-Budde <mkl@pengutronix.de>
+ * Copyright (C) 2010 Freescale Semiconductor, Inc.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#define pr_fmt(fmt)  "HABv4: " fmt
+
+#include <common.h>
+#include <types.h>
+
+#include <habv4.h>
+
+#define HABV4_RVT_IMX28 0xffff8af8
+#define HABV4_RVT_IMX6 0x00000094
+
+enum hab_tag {
+	HAB_TAG_IVT = 0xd1,		/* Image Vector Table */
+	HAB_TAG_DCD = 0xd2,		/* Device Configuration Data */
+	HAB_TAG_CSF = 0xd4,		/* Command Sequence File */
+	HAB_TAG_CRT = 0xd7, 		/* Certificate */
+	HAB_TAG_SIG = 0xd8,		/* Signature */
+	HAB_TAG_EVT = 0xdb,		/* Event */
+	HAB_TAG_RVT = 0xdd,		/* ROM Vector Table */
+	HAB_TAG_WRP = 0x81,		/* Wrapped Key */
+	HAB_TAG_MAC = 0xac,		/* Message Authentication Code */
+};
+
+/* Status definitions */
+enum hab_status {
+	HAB_STATUS_ANY = 0x00,		/* Match any status in report_event */
+	HAB_STATUS_FAILURE = 0x33,	/* Operation failed */
+	HAB_STATUS_WARNING = 0x69,	/* Operation completed with warning */
+	HAB_STATUS_SUCCESS = 0xf0,	/* Operation completed successfully */
+};
+
+/* Security Configuration definitions */
+enum hab_config {
+	HAB_CONFIG_FAB = 0x00,		/* Un-programmed IC */
+	HAB_CONFIG_RETURN = 0x33,	/* Field Return IC */
+	HAB_CONFIG_OPEN = 0xf0,		/* Non-secure IC */
+	HAB_CONFIG_CLOSED = 0xcc,	/* Secure IC */
+};
+
+/* State definitions */
+enum hab_state {
+	HAB_STATE_INITIAL = 0x33,	/* Initialising state (transitory) */
+	HAB_STATE_CHECK = 0x55,		/* Check state (non-secure) */
+	HAB_STATE_NONSECURE = 0x66,	/* Non-secure state */
+	HAB_STATE_TRUSTED = 0x99,	/* Trusted state */
+	HAB_STATE_SECURE = 0xaa,	/* Secure state */
+	HAB_STATE_FAIL_SOFT = 0xcc,	/* Soft fail state */
+	HAB_STATE_FAIL_HARD = 0xff,	/* Hard fail state (terminal) */
+	HAB_STATE_NONE = 0xf0,		/* No security state machine */
+};
+
+enum hab_target {
+	HAB_TARGET_MEMORY = 0x0f,	/* Check memory white list */
+	HAB_TARGET_PERIPHERAL = 0xf0,	/* Check peripheral white list*/
+	HAB_TARGET_ANY = 0x55,		/* Check memory & peripheral white list */
+};
+
+enum hab_assertion {
+	HAB_ASSERTION_BLOCK = 0x0,	/* Check if memory is authenticated after CSF */
+};
+
+
+struct hab_header {
+	uint8_t tag;
+	uint16_t len;			/* len including the header */
+	uint8_t par;
+} __packed;
+
+typedef enum hab_status hab_loader_callback_fn(void **start, uint32_t *bytes, const void *boot_data);
+
+struct habv4_rvt {
+	struct hab_header header;
+	enum hab_status (*entry)(void);
+	enum hab_status (*exit)(void);
+	enum hab_status (*check_target)(enum hab_target target, const void *start, uint32_t bytes);
+	void *(*authenticate_image)(uint8_t cid, uint32_t ivt_offset, void **start, uint32_t *bytes, hab_loader_callback_fn *loader);
+	enum hab_status (*run_dcd)(const void *dcd);
+	enum hab_status (*run_csf)(const void *csf, uint8_t cid);
+	enum hab_status (*assert)(enum hab_assertion assertion, const void *data, uint32_t count);
+	enum hab_status (*report_event)(enum hab_status status, uint32_t index, void *event, uint32_t *bytes);
+	enum hab_status (*report_status)(enum hab_config *config, enum hab_state *state);
+	void (*failsafe)(void);
+} __packed;
+
+static const struct habv4_rvt *__rvt;
+
+static inline const struct habv4_rvt *habv4_get_rvt(void)
+{
+	if (__rvt)
+		return __rvt;
+
+	if (IS_ENABLED(CONFIG_ARCH_IMX28))
+		__rvt = (void *)HABV4_RVT_IMX28;
+	else if (IS_ENABLED(CONFIG_ARCH_IMX6))
+		__rvt = (void *)HABV4_RVT_IMX6;
+
+	if (__rvt->header.tag != HAB_TAG_RVT) {
+		pr_err("ERROR - RVT not found!\n");
+		return NULL;
+	}
+
+	pr_info("Found RVT v%d.%d\n", __rvt->header.par >> 4,
+		__rvt->header.par & 0xf);
+
+	return __rvt;
+}
+
+static const char *habv4_get_status_str(enum hab_status status)
+{
+	switch (status) {
+	case HAB_STATUS_ANY:
+		return "Match any status in report_event"; break;
+	case HAB_STATUS_FAILURE:
+		return "Operation failed"; break;
+	case HAB_STATUS_WARNING:
+		return "Operation completed with warning"; break;
+	case HAB_STATUS_SUCCESS:
+		return "Operation completed successfully"; break;
+	}
+
+	return "<unknown>";
+}
+
+static const char *habv4_get_config_str(enum hab_config config)
+{
+	switch (config) {
+	case HAB_CONFIG_FAB:
+		return "Un-programmed IC"; break;
+	case HAB_CONFIG_RETURN:
+		return "Field Return IC"; break;
+	case HAB_CONFIG_OPEN:
+		return "Non-secure IC"; break;
+	case HAB_CONFIG_CLOSED:
+		return "Secure IC"; break;
+	}
+
+	return "<unknown>";
+}
+
+static const char *habv4_get_state_str(enum hab_state state)
+{
+	switch (state) {
+	case HAB_STATE_INITIAL:
+		return "Initialising state (transitory)"; break;
+	case HAB_STATE_CHECK:
+		return "Check state (non-secure)"; break;
+	case HAB_STATE_NONSECURE:
+		return "Non-secure state"; break;
+	case HAB_STATE_TRUSTED:
+		return "Trusted state"; break;
+	case HAB_STATE_SECURE:
+		return "Secure state"; break;
+	case HAB_STATE_FAIL_SOFT:
+		return "Soft fail state"; break;
+	case HAB_STATE_FAIL_HARD:
+		return "Hard fail state (terminal)"; break;
+	case HAB_STATE_NONE:
+		return "No security state machine"; break;
+	}
+
+	return "<unknown>";
+}
+
+static void habv4_display_event(uint8_t *data, uint32_t len)
+{
+	unsigned int i;
+
+	if (data && len) {
+		for (i = 0; i < len; i++) {
+			if (i == 0)
+				printf(" %02x", data[i]);
+			else if ((i % 8) == 0)
+				printf("\n %02x", data[i]);
+			else if ((i % 4) == 0)
+				printf("  %02x", data[i]);
+			else
+				printf(" %02x", data[i]);
+		}
+	}
+	printf("\n\n");
+}
+
+int habv4_get_status(void)
+{
+	const struct habv4_rvt *rvt = habv4_get_rvt();
+	uint8_t data[256];
+	uint32_t len = sizeof(data);
+	uint32_t index = 0;
+	enum hab_status status;
+	enum hab_config config = 0x0;
+	enum hab_state state = 0x0;
+
+	if (!rvt)
+		return -EINVAL;
+
+	status = rvt->report_status(&config, &state);
+	pr_info("Status: %s (0x%02x)\n", habv4_get_status_str(status), status);
+	pr_info("Config: %s (0x%02x)\n", habv4_get_config_str(config), config);
+	pr_info("State: %s (0x%02x)\n",	habv4_get_state_str(state), state);
+
+	if (status == HAB_STATUS_SUCCESS) {
+		pr_info("No HAB Failure Events Found!\n\n");
+		return 0;
+	}
+
+	while (rvt->report_event(HAB_STATUS_FAILURE, index, data, &len) == HAB_STATUS_SUCCESS) {
+		printf("-------- HAB Event %d --------\n"
+		       "event data:\n", index);
+
+		habv4_display_event(data, len);
+		len = sizeof(data);
+		index++;
+	}
+
+	/* Check reason for stopping */
+	if (rvt->report_event(HAB_STATUS_ANY, index, NULL, &len) == HAB_STATUS_SUCCESS)
+		pr_err("ERROR: Recompile with larger event data buffer (at least %d bytes)\n\n", len);
+
+	return -EINVAL;
+}
diff --git a/include/habv4.h b/include/habv4.h
new file mode 100644
index 000000000000..a3fb9b140f21
--- /dev/null
+++ b/include/habv4.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2014, 2015 Marc Kleine-Budde <mkl@pengutronix.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __HABV4_H
+#define __HABV4_H
+
+int habv4_get_status(void);
+
+#endif /* __HABV4_H */
-- 
2.1.4


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Re: [PATCH 10/10] habv4: add High Assurance Boot v4

[Sascha Hauer]

On Wed, Apr 01, 2015 at 06:14:15PM +0200, Marc Kleine-Budde wrote:
> +
> +static inline const struct habv4_rvt *habv4_get_rvt(void)
> +{
> +	if (__rvt)
> +		return __rvt;
> +
> +	if (IS_ENABLED(CONFIG_ARCH_IMX28))
> +		__rvt = (void *)HABV4_RVT_IMX28;
> +	else if (IS_ENABLED(CONFIG_ARCH_IMX6))
> +		__rvt = (void *)HABV4_RVT_IMX6;

Better use cpu_is_mx28 and cpu_is_mx6 here.

You should probably provide a static inline wrapper for
habv4_get_status().

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
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Re: [PATCH 01/10] add habv4 support for i.MX6

[Sascha Hauer]

On Wed, Apr 01, 2015 at 06:14:05PM +0200, Marc Kleine-Budde wrote:
> Hello,
> 
> this series first cleans up the imx-image generation process. Then support for
> HABv4 signed images is added. The last patch add code to decode HAB events,
> which is usefull during development.
> 
> Tested on $CUSTOMER's i.MX6 solo.

Applied patches 2-7 for now. I'd like to have a closer look at the HAB
patches before applying them, probably after my holidays.

Sascha

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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