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psa: Add storage implementation for files

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Add new functions, psa_load_persistent_key(),
psa_free_persistent_key_data(), and psa_save_persistent_key(), for
managing persistent keys. These functions load to or save from our
internal representation of key slots. Serialization is a concern of the
storage backend implementation and doesn't abstraction-leak into the
lifetime management code.

An initial implementation for files is provided. Additional storage
backends can implement this interface for other storage types.
This commit is contained in:
Darryl Green 2018-06-15 13:06:04 +01:00
parent d9eee3b417
commit db2b8db715
19 changed files with 1004 additions and 0 deletions
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10
tests/scripts/all.sh
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@ -644,6 +644,8 @@ scripts/config.pl unset MBEDTLS_PLATFORM_EXIT_ALT
scripts/config.pl unset MBEDTLS_ENTROPY_NV_SEED
scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C
scripts/config.pl unset MBEDTLS_FS_IO
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C
# Note, _DEFAULT_SOURCE needs to be defined for platforms using glibc version >2.19,
# to re-enable platform integration features otherwise disabled in C99 builds
make CC=gcc CFLAGS='-Werror -Wall -Wextra -std=c99 -pedantic -O0 -D_DEFAULT_SOURCE' lib programs
@ -859,6 +861,8 @@ scripts/config.pl unset MBEDTLS_THREADING_PTHREAD
scripts/config.pl unset MBEDTLS_THREADING_C
scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C # depends on MBEDTLS_FS_IO
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C # depends on MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C
make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
msg "build: arm-none-eabi-gcc -DMBEDTLS_NO_UDBL_DIVISION, make" # ~ 10s
@ -877,6 +881,8 @@ scripts/config.pl unset MBEDTLS_THREADING_C
scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
scripts/config.pl set MBEDTLS_NO_UDBL_DIVISION
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C # depends on MBEDTLS_FS_IO
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C # depends on MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C
make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -Wall -Wextra' lib
echo "Checking that software 64-bit division is not required"
if_build_succeeded not grep __aeabi_uldiv library/*.o
@ -897,6 +903,8 @@ scripts/config.pl unset MBEDTLS_THREADING_C
scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
scripts/config.pl set MBEDTLS_NO_64BIT_MULTIPLICATION
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C # depends on MBEDTLS_FS_IO
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C # depends on MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C
make CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld CFLAGS='-Werror -O1 -march=armv6-m -mthumb' lib
echo "Checking that software 64-bit multiplication is not required"
if_build_succeeded not grep __aeabi_lmul library/*.o
@ -920,6 +928,8 @@ scripts/config.pl unset MBEDTLS_THREADING_C
scripts/config.pl unset MBEDTLS_MEMORY_BACKTRACE # execinfo.h
scripts/config.pl unset MBEDTLS_MEMORY_BUFFER_ALLOC_C # calls exit
scripts/config.pl unset MBEDTLS_PLATFORM_TIME_ALT # depends on MBEDTLS_HAVE_TIME
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C # depends on MBEDTLS_FS_IO
scripts/config.pl unset MBEDTLS_PSA_CRYPTO_STORAGE_C # depends on MBEDTLS_PSA_CRYPTO_STORAGE_FILE_C
if [ $RUN_ARMCC -ne 0 ]; then
make CC="$ARMC5_CC" AR="$ARMC5_AR" WARNING_CFLAGS='--strict --c99' lib