1. Use parameter <soc> to specify boot image type. ie, tegra124, tegra210.
Previouly sign.sh can only sign for tegra210 boot image.
2. Automatically generate signed bct, ie, tegra124.bct, tegra210.bct.
A signed bct is needed when flashing target.
Command syntax:
$ ./sign.sh <soc> <bootimage> <rsa_key>
Example:
$ ./sign.sh tegra124 t124.img rsa_priv.pem
Signed-off-by: Jimmy Zhang <jimmzhang@xxxxxxxxxx>
---
samples/sign.sh | 68 +++++++++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 59 insertions(+), 9 deletions(-)
diff --git a/samples/sign.sh b/samples/sign.sh
index 2edd12695f4b..c9d237d1a10c 100755
--- a/samples/sign.sh
+++ b/samples/sign.sh
@@ -1,6 +1,6 @@
#!/bin/bash
#
-# Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
+# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
#
# This program is free software; you can redistribute it and/or modify it
# under the terms and conditions of the GNU General Public License,
@@ -17,9 +17,49 @@
# See file CREDITS for list of people who contributed to this
# project.
#
+
+Usage ()
+{
+ cat << EOF
+Usage: ./sign.sh <soc> <boot_image> <rsa_priv_key>
+ Where,
+ soc: tegra124, tegra210
+ boot_image: image generated by cbootimage,
+ priv_key: rsa key file in .pem format.
+EOF
+ exit 1;
+}
+
set -e
-IMAGE_FILE=$1
-KEY_FILE=$2
+
+soc=$1 # tegra124, tegra210
+if [[ "${soc}" = tegra124 ]]; then
+ bl_block_offset=16384; # emmc: 16384, spi_flash: 32768: default: emmc
+ bct_signed_offset=1712;
+ bct_signed_length=6480;
+elif [[ "${soc}" = tegra210 ]]; then
+ bl_block_offset=32768; # emmc: 16384, spi_flash: 32768: default: spi
+ bct_signed_offset=1296;
+ bct_signed_length=8944;
+else
+ echo "Error: Invalid target device: soc = $soc";
+ Usage;
+fi;
+bct_length=$(($bct_signed_offset + $bct_signed_length));
+
+# more error check
+if [ $# -lt 3 ]; then
+ echo "Error: Missing parameter(s)";
+ Usage;
+fi;
+
+#
+# In case to add more parameters in the future, we keep the last two as
+# IMAGE_FILE and KEY_FILE
+#
+argv=($@);
+IMAGE_FILE=${argv[$#-2]};
+KEY_FILE=${argv[$#-1]};
TARGET_IMAGE=$IMAGE_FILE
CONFIG_FILE=config.tmp
@@ -33,15 +73,15 @@ MV=mv
XXD=xxd
CUT=cut
-echo "Get rid of all temporary files: *.sig, *.tosig, *.tmp *.mod"
-$RM -f *.sig *.tosig *.tmp *.mod
+echo "Sign ${soc} ${IMAGE_FILE} with key ${KEY_FILE}"
echo "Get bl length "
BL_LENGTH=`$BCT_DUMP $IMAGE_FILE | grep "Bootloader\[0\].Length"\
| awk -F ' ' '{print $4}' | awk -F ';' '{print $1}'`
echo "Extract bootloader to $IMAGE_FILE.bl.tosig, length $BL_LENGTH"
-$DD bs=1 skip=32768 if=$IMAGE_FILE of=$IMAGE_FILE.bl.tosig count=$BL_LENGTH
+$DD bs=1 skip=${bl_block_offset} if=$IMAGE_FILE of=$IMAGE_FILE.bl.tosig \
+ count=$BL_LENGTH
echo "Calculate rsa signature for bootloader and save to $IMAGE_FILE.bl.sig"
$OPENSSL dgst -sha256 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:-1 \
@@ -50,10 +90,11 @@ $OPENSSL dgst -sha256 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:-1 \
echo "Update bootloader's rsa signature, aes hash and bct's aes hash"
echo "RsaPssSigBlFile = $IMAGE_FILE.bl.sig;" > $CONFIG_FILE
echo "RehashBl;" >> $CONFIG_FILE
-$CBOOTIMAGE -s tegra210 -u $CONFIG_FILE $IMAGE_FILE $IMAGE_FILE.tmp
+$CBOOTIMAGE -s ${soc} -u $CONFIG_FILE $IMAGE_FILE $IMAGE_FILE.tmp
echo "Extract the part of bct which needs to be rsa signed"
-$DD bs=1 if=$IMAGE_FILE.tmp of=$IMAGE_FILE.bct.tosig count=8944 skip=1296
+$DD bs=1 if=$IMAGE_FILE.tmp of=$IMAGE_FILE.bct.tosig skip=${bct_signed_offset} \
+ count=${bct_signed_length}
echo "Calculate rsa signature for bct and save to $IMAGE_FILE.bct.sig"
$OPENSSL dgst -sha256 -sigopt rsa_padding_mode:pss -sigopt rsa_pss_saltlen:-1 \
@@ -70,4 +111,13 @@ $XXD -r -p -l 256 $KEY_FILE.mod.tmp $KEY_FILE.mod.bin
echo "Update bct's rsa signature and modulus"
echo "RsaPssSigBctFile = $IMAGE_FILE.bct.sig;" > $CONFIG_FILE
echo "RsaKeyModulusFile = $KEY_FILE.mod.bin;" >> $CONFIG_FILE
-$CBOOTIMAGE -s tegra210 -u $CONFIG_FILE $IMAGE_FILE.tmp $TARGET_IMAGE
+echo ""
+$CBOOTIMAGE -s ${soc} -u $CONFIG_FILE $IMAGE_FILE.tmp $TARGET_IMAGE
+
+echo ""
+$DD bs=1 if=$TARGET_IMAGE of=${soc}.bct count=${bct_length}
+echo ""
+echo "Signed bct ${soc}.bct has been successfully generated!";
+
+#echo "Get rid of all temporary files: *.sig, *.tosig, *.tmp, *.mod, *.mod.bin"
+$RM -f *.sig *.tosig *.tmp *.mod *.mod.bin
--
1.9.1
--
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