Merge branch 'next'

16 files changed, 471 insertions, 69 deletions

diff --git a/tools/.gitignore b/tools/.gitignore
index 2a90dfe..b1e997f 100644
--- a/tools/.gitignore
+++ b/tools/.gitignore
@@ -1,5 +1,7 @@
 /bmp_logo
 /envcrc
+/fit_check_sign
+/fit_info
 /gen_eth_addr
 /img2srec
 /kwboot
diff --git a/tools/Makefile b/tools/Makefile
index 097cc1d..c5c378c 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -40,7 +40,6 @@ CONFIG_BUILD_ENVCRC ?= $(ENVCRC-y)
 
 # TODO: CONFIG_CMD_LICENSE does not work
 hostprogs-$(CONFIG_CMD_LICENSE) += bin2header$(SFX)
-
 hostprogs-$(CONFIG_LCD_LOGO) += bmp_logo$(SFX)
 hostprogs-$(CONFIG_VIDEO_LOGO) += bmp_logo$(SFX)
 HOSTCFLAGS_bmp_logo$(SFX).o := -pedantic
@@ -61,17 +60,22 @@ hostprogs-y += mkenvimage$(SFX)
 mkenvimage$(SFX)-objs := crc32.o mkenvimage.o os_support.o
 
 hostprogs-y += dumpimage$(SFX) mkimage$(SFX)
+ifdef CONFIG_FIT_SIGNATURE
+hostprogs-y += fit_info$(SFX) fit_check_sign$(SFX)
+endif
 
 FIT_SIG_OBJS-$(CONFIG_FIT_SIGNATURE) := image-sig.o
 # Flattened device tree objects
 LIBFDT_OBJS := fdt.o fdt_ro.o fdt_rw.o fdt_strerror.o fdt_wip.o
-RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := rsa-sign.o
+RSA_OBJS-$(CONFIG_FIT_SIGNATURE) := rsa-sign.o rsa-verify.o rsa-checksum.o
 
 # common objs for dumpimage and mkimage
 dumpimage-mkimage-objs := aisimage.o \
 			$(FIT_SIG_OBJS-y) \
 			crc32.o \
 			default_image.o \
+			fdtdec.o \
+			fit_common.o \
 			fit_image.o \
 			image-fit.o \
 			image-host.o \
@@ -85,12 +89,15 @@ dumpimage-mkimage-objs := aisimage.o \
 			os_support.o \
 			pblimage.o \
 			sha1.o \
+			sha256.o \
 			ublimage.o \
 			$(LIBFDT_OBJS) \
 			$(RSA_OBJS-y)
 
 dumpimage$(SFX)-objs := $(dumpimage-mkimage-objs) dumpimage.o
 mkimage$(SFX)-objs   := $(dumpimage-mkimage-objs) mkimage.o
+fit_info$(SFX)-objs   := $(dumpimage-mkimage-objs) fit_info.o
+fit_check_sign$(SFX)-objs   := $(dumpimage-mkimage-objs) fit_check_sign.o
 
 # TODO(sjg@chromium.org): Is this correct on Mac OS?
 
@@ -98,6 +105,8 @@ mkimage$(SFX)-objs   := $(dumpimage-mkimage-objs) mkimage.o
 ifneq ($(CONFIG_MX23)$(CONFIG_MX28),)
 HOSTLOADLIBES_dumpimage$(SFX) := -lssl -lcrypto
 HOSTLOADLIBES_mkimage$(SFX) := -lssl -lcrypto
+HOSTLOADLIBES_fit_info$(SFX) := -lssl -lcrypto
+HOSTLOADLIBES_fit_check_sign$(SFX) := -lssl -lcrypto
 # Add CONFIG_MXS into host CFLAGS, so we can check whether or not register
 # the mxsimage support within tools/mxsimage.c .
 HOSTCFLAGS_mxsimage.o += -DCONFIG_MXS
@@ -106,6 +115,8 @@ endif
 ifdef CONFIG_FIT_SIGNATURE
 HOSTLOADLIBES_dumpimage$(SFX) := -lssl -lcrypto
 HOSTLOADLIBES_mkimage$(SFX) := -lssl -lcrypto
+HOSTLOADLIBES_fit_info$(SFX) := -lssl -lcrypto
+HOSTLOADLIBES_fit_check_sign$(SFX) := -lssl -lcrypto
 
 # This affects include/image.h, but including the board config file
 # is tricky, so manually define this options here.
@@ -137,6 +148,7 @@ hostprogs-$(CONFIG_STATIC_RELA) += relocate-rela$(SFX)
 HOSTCFLAGS_crc32.o := -pedantic
 HOSTCFLAGS_md5.o := -pedantic
 HOSTCFLAGS_sha1.o := -pedantic
+HOSTCFLAGS_sha256.o := -pedantic
 
 # Don't build by default
 #hostprogs-$(CONFIG_PPC) += mpc86x_clk$(SFX)
diff --git a/tools/env/Makefile b/tools/env/Makefile
index fcb752d..f5368bc 100644
--- a/tools/env/Makefile
+++ b/tools/env/Makefile
@@ -25,7 +25,7 @@ hostprogs-y := fw_printenv_unstripped
 
 fw_printenv_unstripped-objs := fw_env.o fw_env_main.o \
 	crc32.o ctype.o linux_string.o \
-	env_attr.o env_flags.o
+	env_attr.o env_flags.o aes.o
 
 quiet_cmd_strip = STRIP   $@
       cmd_strip = $(STRIP) -o $@ $<
diff --git a/tools/env/fw_env.c b/tools/env/fw_env.c
index d228cc3..fba4c8c 100644
--- a/tools/env/fw_env.c
+++ b/tools/env/fw_env.c
@@ -31,6 +31,10 @@
 
 #include "fw_env.h"
 
+#include <aes.h>
+
+#define DIV_ROUND_UP(n, d)	(((n) + (d) - 1) / (d))
+
 #define WHITESPACE(c) ((c == '\t') || (c == ' '))
 
 #define min(x, y) ({				\
@@ -98,6 +102,11 @@ static struct environment environment = {
 	.flag_scheme = FLAG_NONE,
 };
 
+/* Is AES encryption used? */
+static int aes_flag;
+static uint8_t aes_key[AES_KEY_LENGTH] = { 0 };
+static int env_aes_cbc_crypt(char *data, const int enc);
+
 static int HaveRedundEnv = 0;
 
 static unsigned char active_flag = 1;
@@ -120,6 +129,10 @@ static inline ulong getenvsize (void)
 
 	if (HaveRedundEnv)
 		rc -= sizeof (char);
+
+	if (aes_flag)
+		rc &= ~(AES_KEY_LENGTH - 1);
+
 	return rc;
 }
 
@@ -191,6 +204,36 @@ char *fw_getdefenv(char *name)
 	return NULL;
 }
 
+static int parse_aes_key(char *key)
+{
+	char tmp[5] = { '0', 'x', 0, 0, 0 };
+	unsigned long ul;
+	int i;
+
+	if (strnlen(key, 64) != 32) {
+		fprintf(stderr,
+			"## Error: '-a' option requires 16-byte AES key\n");
+		return -1;
+	}
+
+	for (i = 0; i < 16; i++) {
+		tmp[2] = key[0];
+		tmp[3] = key[1];
+		errno = 0;
+		ul = strtoul(tmp, NULL, 16);
+		if (errno) {
+			fprintf(stderr,
+				"## Error: '-a' option requires valid AES key\n");
+			return -1;
+		}
+		aes_key[i] = ul & 0xff;
+		key += 2;
+	}
+	aes_flag = 1;
+
+	return 0;
+}
+
 /*
  * Print the current definition of one, or more, or all
  * environment variables
@@ -201,6 +244,19 @@ int fw_printenv (int argc, char *argv[])
 	int i, n_flag;
 	int rc = 0;
 
+	if (argc >= 2 && strcmp(argv[1], "-a") == 0) {
+		if (argc < 3) {
+			fprintf(stderr,
+				"## Error: '-a' option requires AES key\n");
+			return -1;
+		}
+		rc = parse_aes_key(argv[2]);
+		if (rc)
+			return rc;
+		argv += 2;
+		argc -= 2;
+	}
+
 	if (fw_env_open())
 		return -1;
 
@@ -266,6 +322,16 @@ int fw_printenv (int argc, char *argv[])
 
 int fw_env_close(void)
 {
+	int ret;
+	if (aes_flag) {
+		ret = env_aes_cbc_crypt(environment.data, 1);
+		if (ret) {
+			fprintf(stderr,
+				"Error: can't encrypt env for flash\n");
+			return ret;
+		}
+	}
+
 	/*
 	 * Update CRC
 	 */
@@ -413,7 +479,7 @@ int fw_env_write(char *name, char *value)
  */
 int fw_setenv(int argc, char *argv[])
 {
-	int i;
+	int i, rc;
 	size_t len;
 	char *name;
 	char *value = NULL;
@@ -423,6 +489,24 @@ int fw_setenv(int argc, char *argv[])
 		return -1;
 	}
 
+	if (strcmp(argv[1], "-a") == 0) {
+		if (argc < 3) {
+			fprintf(stderr,
+				"## Error: '-a' option requires AES key\n");
+			return -1;
+		}
+		rc = parse_aes_key(argv[2]);
+		if (rc)
+			return rc;
+		argv += 2;
+		argc -= 2;
+	}
+
+	if (argc < 2) {
+		errno = EINVAL;
+		return -1;
+	}
+
 	if (fw_env_open()) {
 		fprintf(stderr, "Error: environment not initialized\n");
 		return -1;
@@ -900,6 +984,28 @@ static int flash_flag_obsolete (int dev, int fd, off_t offset)
 	return rc;
 }
 
+/* Encrypt or decrypt the environment before writing or reading it. */
+static int env_aes_cbc_crypt(char *payload, const int enc)
+{
+	uint8_t *data = (uint8_t *)payload;
+	const int len = getenvsize();
+	uint8_t key_exp[AES_EXPAND_KEY_LENGTH];
+	uint32_t aes_blocks;
+
+	/* First we expand the key. */
+	aes_expand_key(aes_key, key_exp);
+
+	/* Calculate the number of AES blocks to encrypt. */
+	aes_blocks = DIV_ROUND_UP(len, AES_KEY_LENGTH);
+
+	if (enc)
+		aes_cbc_encrypt_blocks(key_exp, data, data, aes_blocks);
+	else
+		aes_cbc_decrypt_blocks(key_exp, data, data, aes_blocks);
+
+	return 0;
+}
+
 static int flash_write (int fd_current, int fd_target, int dev_target)
 {
 	int rc;
@@ -923,6 +1029,7 @@ static int flash_write (int fd_current, int fd_target, int dev_target)
 	fprintf(stderr, "Writing new environment at 0x%lx on %s\n",
 		DEVOFFSET (dev_target), DEVNAME (dev_target));
 #endif
+
 	rc = flash_write_buf(dev_target, fd_target, environment.image,
 			      CUR_ENVSIZE, DEVOFFSET(dev_target),
 			      DEVTYPE(dev_target));
@@ -981,8 +1088,10 @@ static int flash_read (int fd)
 
 	rc = flash_read_buf(dev_current, fd, environment.image, CUR_ENVSIZE,
 			     DEVOFFSET (dev_current), mtdinfo.type);
+	if (rc != CUR_ENVSIZE)
+		return -1;
 
-	return (rc != CUR_ENVSIZE) ? -1 : 0;
+	return 0;
 }
 
 static int flash_io (int mode)
@@ -1075,6 +1184,8 @@ int fw_env_open(void)
 	unsigned char flag1;
 	void *addr1;
 
+	int ret;
+
 	struct env_image_single *single;
 	struct env_image_redundant *redundant;
 
@@ -1109,6 +1220,13 @@ int fw_env_open(void)
 		return -1;
 
 	crc0 = crc32 (0, (uint8_t *) environment.data, ENV_SIZE);
+
+	if (aes_flag) {
+		ret = env_aes_cbc_crypt(environment.data, 0);
+		if (ret)
+			return ret;
+	}
+
 	crc0_ok = (crc0 == *environment.crc);
 	if (!HaveRedundEnv) {
 		if (!crc0_ok) {
@@ -1159,6 +1277,13 @@ int fw_env_open(void)
 		}
 
 		crc1 = crc32 (0, (uint8_t *) redundant->data, ENV_SIZE);
+
+		if (aes_flag) {
+			ret = env_aes_cbc_crypt(redundant->data, 0);
+			if (ret)
+				return ret;
+		}
+
 		crc1_ok = (crc1 == redundant->crc);
 		flag1 = redundant->flags;
 
diff --git a/tools/env/fw_env_main.c b/tools/env/fw_env_main.c
index 2b85d78..ce50d58 100644
--- a/tools/env/fw_env_main.c
+++ b/tools/env/fw_env_main.c
@@ -9,18 +9,22 @@
  * Command line user interface to firmware (=U-Boot) environment.
  *
  * Implements:
- *	fw_printenv [[ -n name ] | [ name ... ]]
+ *	fw_printenv [ -a key ] [[ -n name ] | [ name ... ]]
  *              - prints the value of a single environment variable
  *                "name", the ``name=value'' pairs of one or more
  *                environment variables "name", or the whole
  *                environment if no names are specified.
- *	fw_setenv name [ value ... ]
+ *	fw_setenv [ -a key ] name [ value ... ]
  *		- If a name without any values is given, the variable
  *		  with this name is deleted from the environment;
  *		  otherwise, all "value" arguments are concatenated,
  *		  separated by single blank characters, and the
  *		  resulting string is assigned to the environment
  *		  variable "name"
+ *
+ * If '-a key' is specified, the env block is encrypted with AES 128 CBC.
+ * The 'key' argument is in the format of 32 hexadecimal numbers (16 bytes
+ * of AES key), eg. '-a aabbccddeeff00112233445566778899'.
  */
 
 #include <fcntl.h>
@@ -46,8 +50,8 @@ void usage(void)
 
 	fprintf(stderr, "fw_printenv/fw_setenv, "
 		"a command line interface to U-Boot environment\n\n"
-		"usage:\tfw_printenv [-n] [variable name]\n"
-		"\tfw_setenv [variable name] [variable value]\n"
+		"usage:\tfw_printenv [-a key] [-n] [variable name]\n"
+		"\tfw_setenv [-a key] [variable name] [variable value]\n"
 		"\tfw_setenv -s [ file ]\n"
 		"\tfw_setenv -s - < [ file ]\n\n"
 		"The file passed as argument contains only pairs "
@@ -94,9 +98,12 @@ int main(int argc, char *argv[])
 		cmdname = p + 1;
 	}
 
-	while ((c = getopt_long (argc, argv, "ns:h",
+	while ((c = getopt_long (argc, argv, "a:ns:h",
 		long_options, NULL)) != EOF) {
 		switch (c) {
+		case 'a':
+			/* AES key, handled later */
+			break;
 		case 'n':
 			/* handled in fw_printenv */
 			break;
diff --git a/tools/fdt_host.h b/tools/fdt_host.h
index c2b23c6..134d965 100644
--- a/tools/fdt_host.h
+++ b/tools/fdt_host.h
@@ -11,4 +11,6 @@
 #include "../include/libfdt.h"
 #include "../include/fdt_support.h"
 
+int fit_check_sign(const void *working_fdt, const void *key);
+
 #endif /* __FDT_HOST_H__ */
diff --git a/tools/fdtdec.c b/tools/fdtdec.c
new file mode 100644
index 0000000..f1c2256
--- /dev/null
+++ b/tools/fdtdec.c
@@ -0,0 +1 @@
+#include "../lib/fdtdec.c"
diff --git a/tools/fit_check_sign.c b/tools/fit_check_sign.c
new file mode 100644
index 0000000..d6d9340
--- /dev/null
+++ b/tools/fit_check_sign.c
@@ -0,0 +1,85 @@
+/*
+ * (C) Copyright 2014
+ * DENX Software Engineering
+ * Heiko Schocher <hs@denx.de>
+ *
+ * Based on:
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *		FIT image specific code abstracted from mkimage.c
+ *		some functions added to address abstraction
+ *
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "mkimage.h"
+#include "fit_common.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+void usage(char *cmdname)
+{
+	fprintf(stderr, "Usage: %s -f fit file -k key file\n"
+			 "          -f ==> set fit file which should be checked'\n"
+			 "          -k ==> set key file which contains the key'\n",
+		cmdname);
+	exit(EXIT_FAILURE);
+}
+
+int main(int argc, char **argv)
+{
+	int ffd = -1;
+	int kfd = -1;
+	struct stat fsbuf;
+	struct stat ksbuf;
+	void *fit_blob;
+	char *fdtfile = NULL;
+	char *keyfile = NULL;
+	char cmdname[50];
+	int ret;
+	void *key_blob;
+	int c;
+
+	strcpy(cmdname, *argv);
+	while ((c = getopt(argc, argv, "f:k:")) != -1)
+		switch (c) {
+		case 'f':
+			fdtfile = optarg;
+			break;
+		case 'k':
+			keyfile = optarg;
+			break;
+		default:
+			usage(cmdname);
+			break;
+	}
+
+	ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0);
+	if (ffd < 0)
+		return EXIT_FAILURE;
+	kfd = mmap_fdt(cmdname, keyfile, &key_blob, &ksbuf, 0);
+	if (ffd < 0)
+		return EXIT_FAILURE;
+
+	image_set_host_blob(key_blob);
+	ret = fit_check_sign(fit_blob, key_blob);
+
+	if (ret)
+		ret = EXIT_SUCCESS;
+	else
+		ret = EXIT_FAILURE;
+
+	(void) munmap((void *)fit_blob, fsbuf.st_size);
+	(void) munmap((void *)key_blob, ksbuf.st_size);
+
+	close(ffd);
+	close(kfd);
+	exit(ret);
+}
diff --git a/tools/fit_common.c b/tools/fit_common.c
new file mode 100644
index 0000000..ee1767b
--- /dev/null
+++ b/tools/fit_common.c
@@ -0,0 +1,86 @@
+/*
+ * (C) Copyright 2014
+ * DENX Software Engineering
+ * Heiko Schocher <hs@denx.de>
+ *
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *		FIT image specific code abstracted from mkimage.c
+ *		some functions added to address abstraction
+ *
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "imagetool.h"
+#include "mkimage.h"
+#include "fit_common.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+int fit_verify_header(unsigned char *ptr, int image_size,
+			struct image_tool_params *params)
+{
+	return fdt_check_header(ptr);
+}
+
+int fit_check_image_types(uint8_t type)
+{
+	if (type == IH_TYPE_FLATDT)
+		return EXIT_SUCCESS;
+	else
+		return EXIT_FAILURE;
+}
+
+int mmap_fdt(char *cmdname, const char *fname, void **blobp,
+		struct stat *sbuf, int useunlink)
+{
+	void *ptr;
+	int fd;
+
+	/* Load FIT blob into memory (we need to write hashes/signatures) */
+	fd = open(fname, O_RDWR | O_BINARY);
+
+	if (fd < 0) {
+		fprintf(stderr, "%s: Can't open %s: %s\n",
+			cmdname, fname, strerror(errno));
+		if (useunlink)
+			unlink(fname);
+		return -1;
+	}
+
+	if (fstat(fd, sbuf) < 0) {
+		fprintf(stderr, "%s: Can't stat %s: %s\n",
+			cmdname, fname, strerror(errno));
+		if (useunlink)
+			unlink(fname);
+		return -1;
+	}
+
+	errno = 0;
+	ptr = mmap(0, sbuf->st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+	if ((ptr == MAP_FAILED) || (errno != 0)) {
+		fprintf(stderr, "%s: Can't read %s: %s\n",
+			cmdname, fname, strerror(errno));
+		if (useunlink)
+			unlink(fname);
+		return -1;
+	}
+
+	/* check if ptr has a valid blob */
+	if (fdt_check_header(ptr)) {
+		fprintf(stderr, "%s: Invalid FIT blob\n", cmdname);
+		if (useunlink)
+			unlink(fname);
+		return -1;
+	}
+
+	*blobp = ptr;
+	return fd;
+}
diff --git a/tools/fit_common.h b/tools/fit_common.h
new file mode 100644
index 0000000..adf4404
--- /dev/null
+++ b/tools/fit_common.h
@@ -0,0 +1,22 @@
+/*
+ * (C) Copyright 2014
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _FIT_COMMON_H_
+#define _FIT_COMMON_H_
+
+#include "imagetool.h"
+#include "mkimage.h"
+#include <image.h>
+
+int fit_verify_header(unsigned char *ptr, int image_size,
+			struct image_tool_params *params);
+
+int fit_check_image_types(uint8_t type);
+
+int mmap_fdt(char *cmdname, const char *fname, void **blobp,
+		struct stat *sbuf, int useunlink);
+
+#endif /* _FIT_COMMON_H_ */
diff --git a/tools/fit_image.c b/tools/fit_image.c
index 1466164..eeee484 100644
--- a/tools/fit_image.c
+++ b/tools/fit_image.c
@@ -15,68 +15,13 @@
  */
 
 #include "imagetool.h"
+#include "fit_common.h"
 #include "mkimage.h"
 #include <image.h>
 #include <u-boot/crc.h>
 
 static image_header_t header;
 
-static int fit_verify_header (unsigned char *ptr, int image_size,
-			struct image_tool_params *params)
-{
-	return fdt_check_header(ptr);
-}
-
-static int fit_check_image_types (uint8_t type)
-{
-	if (type == IH_TYPE_FLATDT)
-		return EXIT_SUCCESS;
-	else
-		return EXIT_FAILURE;
-}
-
-int mmap_fdt(struct image_tool_params *params, const char *fname, void **blobp,
-		struct stat *sbuf)
-{
-	void *ptr;
-	int fd;
-
-	/* Load FIT blob into memory (we need to write hashes/signatures) */
-	fd = open(fname, O_RDWR | O_BINARY);
-
-	if (fd < 0) {
-		fprintf(stderr, "%s: Can't open %s: %s\n",
-			params->cmdname, fname, strerror(errno));
-		unlink(fname);
-		return -1;
-	}
-
-	if (fstat(fd, sbuf) < 0) {
-		fprintf(stderr, "%s: Can't stat %s: %s\n",
-			params->cmdname, fname, strerror(errno));
-		unlink(fname);
-		return -1;
-	}
-
-	ptr = mmap(0, sbuf->st_size, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
-	if (ptr == MAP_FAILED) {
-		fprintf(stderr, "%s: Can't read %s: %s\n",
-			params->cmdname, fname, strerror(errno));
-		unlink(fname);
-		return -1;
-	}
-
-	/* check if ptr has a valid blob */
-	if (fdt_check_header(ptr)) {
-		fprintf(stderr, "%s: Invalid FIT blob\n", params->cmdname);
-		unlink(fname);
-		return -1;
-	}
-
-	*blobp = ptr;
-	return fd;
-}
-
 /**
  * fit_handle_file - main FIT file processing function
  *
@@ -129,13 +74,14 @@ static int fit_handle_file(struct image_tool_params *params)
 	}
 
 	if (params->keydest) {
-		destfd = mmap_fdt(params, params->keydest, &dest_blob, &sbuf);
+		destfd = mmap_fdt(params->cmdname, params->keydest,
+				  &dest_blob, &sbuf, 1);
 		if (destfd < 0)
 			goto err_keydest;
 		destfd_size = sbuf.st_size;
 	}
 
-	tfd = mmap_fdt(params, tmpfile, &ptr, &sbuf);
+	tfd = mmap_fdt(params->cmdname, tmpfile, &ptr, &sbuf, 1);
 	if (tfd < 0)
 		goto err_mmap;
 
diff --git a/tools/fit_info.c b/tools/fit_info.c
new file mode 100644
index 0000000..50f3c8e
--- /dev/null
+++ b/tools/fit_info.c
@@ -0,0 +1,96 @@
+/*
+ * (C) Copyright 2014
+ * DENX Software Engineering
+ * Heiko Schocher <hs@denx.de>
+ *
+ * fit_info: print the offset and the len of a property from
+ *	     node in a fit file.
+ *
+ * Based on:
+ * (C) Copyright 2008 Semihalf
+ *
+ * (C) Copyright 2000-2004
+ * DENX Software Engineering
+ * Wolfgang Denk, wd@denx.de
+ *
+ * Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
+ *		FIT image specific code abstracted from mkimage.c
+ *		some functions added to address abstraction
+ *
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include "mkimage.h"
+#include "fit_common.h"
+#include <image.h>
+#include <u-boot/crc.h>
+
+void usage(char *cmdname)
+{
+	fprintf(stderr, "Usage: %s -f fit file -n node -p property\n"
+			 "          -f ==> set fit file which is used'\n"
+			 "          -n ==> set node name'\n"
+			 "          -p ==> set property name'\n",
+		cmdname);
+	exit(EXIT_FAILURE);
+}
+
+int main(int argc, char **argv)
+{
+	int ffd = -1;
+	struct stat fsbuf;
+	void *fit_blob;
+	int len;
+	int  nodeoffset;	/* node offset from libfdt */
+	const void *nodep;	/* property node pointer */
+	char *fdtfile = NULL;
+	char *nodename = NULL;
+	char *propertyname = NULL;
+	char cmdname[50];
+	int c;
+
+	strcpy(cmdname, *argv);
+	while ((c = getopt(argc, argv, "f:n:p:")) != -1)
+		switch (c) {
+		case 'f':
+			fdtfile = optarg;
+			break;
+		case 'n':
+			nodename = optarg;
+			break;
+		case 'p':
+			propertyname = optarg;
+			break;
+		default:
+			usage(cmdname);
+			break;
+		}
+
+	ffd = mmap_fdt(cmdname, fdtfile, &fit_blob, &fsbuf, 0);
+
+	if (ffd < 0) {
+		printf("Could not open %s\n", fdtfile);
+		exit(EXIT_FAILURE);
+	}
+
+	nodeoffset = fdt_path_offset(fit_blob, nodename);
+	if (nodeoffset < 0) {
+		printf("%s not found.", nodename);
+		exit(EXIT_FAILURE);
+	}
+	nodep = fdt_getprop(fit_blob, nodeoffset, propertyname, &len);
+	if (len == 0) {
+		printf("len == 0 %s\n", propertyname);
+		exit(EXIT_FAILURE);
+	}
+
+	printf("NAME: %s\n", fit_get_name(fit_blob, nodeoffset, NULL));
+	printf("LEN: %d\n", len);
+	printf("OFF: %d\n", (int)(nodep - fit_blob));
+	(void) munmap((void *)fit_blob, fsbuf.st_size);
+
+	close(ffd);
+	exit(EXIT_SUCCESS);
+}
diff --git a/tools/image-host.c b/tools/image-host.c
index 0d5c88c..651f1c2 100644
--- a/tools/image-host.c
+++ b/tools/image-host.c
@@ -403,7 +403,7 @@ static int fit_config_get_hash_list(void *fit, int conf_noffset,
 		goto err_mem;
 
 	/* Get a list of images that we intend to sign */
-	prop = fit_config_get_image_list(fit, conf_noffset, &len,
+	prop = fit_config_get_image_list(fit, sig_offset, &len,
 					&allow_missing);
 	if (!prop)
 		return 0;
@@ -695,3 +695,18 @@ int fit_add_verification_data(const char *keydir, void *keydest, void *fit,
 
 	return 0;
 }
+
+#ifdef CONFIG_FIT_SIGNATURE
+int fit_check_sign(const void *working_fdt, const void *key)
+{
+	int cfg_noffset;
+	int ret;
+
+	cfg_noffset = fit_conf_get_node(working_fdt, NULL);
+	if (!cfg_noffset)
+		return -1;
+
+	ret = fit_config_verify(working_fdt, cfg_noffset);
+	return ret;
+}
+#endif
diff --git a/tools/rsa-checksum.c b/tools/rsa-checksum.c
new file mode 100644
index 0000000..09033e6
--- /dev/null
+++ b/tools/rsa-checksum.c
@@ -0,0 +1 @@
+#include "../lib/rsa/rsa-checksum.c"
diff --git a/tools/rsa-verify.c b/tools/rsa-verify.c
new file mode 100644
index 0000000..bb662a1
--- /dev/null
+++ b/tools/rsa-verify.c
@@ -0,0 +1 @@
+#include "../lib/rsa/rsa-verify.c"
diff --git a/tools/sha256.c b/tools/sha256.c
new file mode 100644
index 0000000..8ca931f
--- /dev/null
+++ b/tools/sha256.c
@@ -0,0 +1 @@
+#include "../lib/sha256.c"