How to integrate libtomcrypt into u-boot?

0
votes

for a research project I need to incorporate different crypto functions (PRNG, SHA1, symmetric encryption/decryption) into the MLO part of u-boot.

My questions:

1.) Has someone achieved this before?

2.) Do you guys know it this is even possible regarding the limited size of the MLO and the size of libtomcrypt?

3.) Does someone know an elegant way of resolving missing *.h file-errors besides the straight forward way of copying them fomr /usr/include/ to {u-boot-src}/include/ ?

Thanks a lot.

make output:

arch/arm/cpu/armv7/omap-common/libomap-common.o: In function selectSecretBytes': /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:777: undefined reference toregister_prng' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:778: undefined reference to find_prng' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:778: undefined reference torng_make_prng' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:779: undefined reference to error_to_string' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:783: undefined reference tofortuna_start' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:784: undefined reference to error_to_string' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:788: undefined reference tofortuna_add_entropy' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:789: undefined reference to error_to_string' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:793: undefined reference tofortuna_ready' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:794: undefined reference to error_to_string' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:797: undefined reference tofortuna_read' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:805: undefined reference to fortuna_done' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:806: undefined reference toerror_to_string' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:816: undefined reference to fortuna_desc' arch/arm/cpu/armv7/omap-common/libomap-common.o: In functioncreateKey': /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:1088: undefined reference to register_hash' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:1094: undefined reference tofind_hash' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:1104: undefined reference to sha1_process' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:1114: undefined reference tosha1_desc' /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/cpu/armv7/omap-common/hwinit-common.c:1114: undefined reference to `hash_descriptor' arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13036 arm-none-linux-gnueabi-ld: BFD (Sourcery G++ Lite 2011.03-41) 2.20.51.20100809 assertion fail /scratch/janisjo/arm-linux-lite/obj/binutils-src-2011.03-41-arm-none-linux-gnueabi-i686-pc-linux-gnu/bfd/elf32-arm.c:13291 /bin/sh: Zeile 1: 20550 Speicherzugriffsfehler (Speicherabzug geschrieben) arm-none-linux-gnueabi-ld -pie -T u-boot.lds -Bstatic -Ttext 0x80E80000 $UNDEF_SYM arch/arm/cpu/armv7/start.o --start-group api/libapi.o arch/arm/cpu/armv7/libarmv7.o arch/arm/cpu/armv7/omap-common/libomap-common.o arch/arm/cpu/armv7/omap4/libomap4.o arch/arm/lib/libarm.o common/libcommon.o disk/libdisk.o drivers/bios_emulator/libatibiosemu.o drivers/block/libblock.o drivers/dma/libdma.o drivers/fpga/libfpga.o drivers/gpio/libgpio.o drivers/hwmon/libhwmon.o drivers/i2c/libi2c.o drivers/input/libinput.o drivers/misc/libmisc.o drivers/mmc/libmmc.o drivers/mtd/libmtd.o drivers/mtd/nand/libnand.o drivers/mtd/onenand/libonenand.o drivers/mtd/spi/libspi_flash.o drivers/mtd/ubi/libubi.o drivers/net/libnet.o drivers/net/phy/libphy.o drivers/pci/libpci.o drivers/pcmcia/libpcmcia.o drivers/power/libpower.o drivers/rtc/librtc.o drivers/serial/libserial.o drivers/spi/libspi.o drivers/twserial/libtws.o drivers/usb/eth/libusb_eth.o drivers/usb/gadget/libusb_gadget.o drivers/usb/host/libusb_host.o drivers/usb/musb/libusb_musb.o drivers/usb/phy/libusb_phy.o drivers/usb/ulpi/libusb_ulpi.o drivers/video/libvideo.o drivers/watchdog/libwatchdog.o fs/cramfs/libcramfs.o fs/ext2/libext2fs.o fs/fat/libfat.o fs/fdos/libfdos.o fs/jffs2/libjffs2.o fs/reiserfs/libreiserfs.o fs/ubifs/libubifs.o fs/yaffs2/libyaffs2.o lib/libfdt/libfdt.o lib/libgeneric.o lib/lzma/liblzma.o lib/lzo/liblzo.o lib/zlib/libz.o net/libnet.o post/libpost.o board/ti/panda/libpanda.o --end-group /home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524/arch/arm/lib/eabi_compat.o -L /opt/CodeSourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-linux-gnueabi/4.5.2/armv4t -lgcc -Map u-boot.map -o u-boot make[1]: * [u-boot] Fehler 139 make[1]: Verlasse Verzeichnis '/home/andre/tmp/working/chipsee/u-boot-ics-chipsee-panda-0524' make: * [omap4_panda] Fehler 2

1
cryptographyshared-librariesu-boot
My question is, why would you use libtomcrypt? Its pretty much abandoned, and there are superior libraries available including Botan, Cryptlib, Crypto++, and OpenSSL. – jww

1 Answers

0
votes

1.) Has someone achieved this before?

I have not.

2.) Do you guys know it this is even possible regarding the limited size of the MLO and the size of libtomcrypt?

libtomcrypt appears to be pretty much abandoned. There are probably better choices. Caveat emptor.

3.) Does someone know an elegant way of resolving missing *.h file-errors besides the straight forward way of copying them fomr /usr/include/ to {u-boot-src}/include/ ?

Use --sysroot to pass the root directory or SYSROOT of the arm headers and libraries. Under SYSROOT, there should be a include/ and lib, and the compiler and linker will find required headers and libraries.

Or, pass the header path using -I and library path using -L.