Commit graph

15237 commits

Author SHA1 Message Date
Chris Jones 3f613c17c1 Improve mbedtls_test_err_add_check documentation
Improve and clarify error messages and comments when checking error codes.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones 759e30bdb0 Add MBEDTLS_ERROR_C dependency to invasive error code testing
Fix builds where `MBEDTLS_ERROR_C` is not defined but `MBEDTLS_TEST_HOOKS`
is defined. This was previously causing undefined reference errors in
these builds.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones b179b84335 Change set_err_add_hook void pointer to actual function pointer signature
Change the signature of the `hook` parameter of `mbedtls_set_err_add_hook`
to use the actual signature of the function as opposed to `void *`. This
fixes a warning when compiling with clang `-pedantic`.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones fe285f53e6 Make mbedtls_test_err_add_check fail tests
Previously an error message was printed and then the test manually exited
via `mbedtls_exit( 1 )`. This commit includes a rebase onto:
540320bf7b so that `mbedtls_test_fail` can
be used instead to properly fail tests (and report them as such).

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones d86ad60aa5 Change mbedtls_set_err_add_hook to use doxygen style comment
Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones a203c38576 Expand error addition checks
Add new checks and specific error messages to `mbedtls_test_err_add_check`.
This should now catch all types of error when combining error codes and
provide a specific error message to explain what occured.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones ef180af350 Move MBEDTLS_ERR_ADD macro and functions to error.*
`error.c` and  error.h are the more logical place to keep this code and it
prevents issues with building `common.c` and conflicts with other projects
that use mbedtls (such as mbedOS).

`error.c` has been automatically generated by first adding the code to
`error.fmt` and then running `./scripts/generate_errors.pl`.

Also add parenthesis to the addition in `MBEDTLS_ERR_ADD`.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones 808b7c8a8a Fix building with MBEDTLS_TEST_HOOKS enabled
Fix building by adding `common.c` to the build scripts (both make and Cmake).

Also reworks the hook function pointer (also renamed to `err_add_hook`) to be
a static local to `common.c` with a setter function to set the pointer to a
checking function.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones 5e8805afeb Move MBEDTLS_ERR_ADD macro and function to common.*
`error.c` is a file generated from `error.h` and thus cannot contain the code
that was previously added. This commit fixes that issue by moving the
`MBEDTLS_ERR_ADD` macro and associated function and function pointer into
`common.h` and `common.c`.

Also fix a typo in `tests/include/test/helpers.h` where tabs were accidentally
used instead of spaces.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:43 +01:00
Chris Jones 713e4e77b4 Expand use of MBEDTLS_ERR_ADD to the rest of rsa.c
All occurences of manual error code addition/combination, in `rsa.c`, have
been replaced with the `MBEDTLS_ERR_ADD` macro.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:21:35 +01:00
Chris Jones 220cdece40 Fix error code combination check
`mbedtls_test_err_add_check` was previously incorrectly throwing an error if
both error codes were correct and valid pure error codes. This change fixes
that behaviour to correctly throw errors when invalid combinations are found.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:12:10 +01:00
Chris Jones 96ae73b0ea Add macro for error code addition
Adds a macro (`MBEDTLS_ERR_ADD`) to add error codes together and check that the
result will not be corrupted. This additional check is only enabled during
testing when `MBEDTLS_TEST_HOOKS` is defined.

Also includes a reference usage example in `rsa.c` where two high-level error
codes could be incorrectly added together under the right conditions. This now
ensures that when this error occurs during testing it will be correctly
reported.

Signed-off-by: Chris Jones <christopher.jones@arm.com>
2021-04-13 15:12:02 +01:00
Manuel Pégourié-Gonnard 528b0a6b18
Merge pull request #4323 from gilles-peskine-arm/ecp-add-fix-changelog-development
Changelog entry for mbedtls_mpi_read_string("-0")
2021-04-13 09:57:10 +02:00
Gilles Peskine 8f28c24b4a Explain the problem in more concrete terms
Don't try to make the reader guess what a “negative zero” might mean.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-09 20:20:26 +02:00
Gilles Peskine fd4fab0b24 mbedtls_mpi_read_string("-0") no longer produces a "negative zero"
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-09 17:13:15 +02:00
Gilles Peskine 9a1c092f8b
Merge pull request #4297 from gilles-peskine-arm/ecp-add-fix-202104
Fix ECP arithmetic bug and read of zero-padded negative number
2021-04-09 16:46:06 +02:00
Gilles Peskine 392d1010dc Clarify some comments
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-09 15:46:51 +02:00
Gilles Peskine bd43f67a9b Fix copypasta in test case description
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-09 15:46:40 +02:00
Gilles Peskine f04c0ed2a7
Merge pull request #4318 from bensze01/ecc_get_family_doc
Fix reference to deprecated macro in documentation
2021-04-08 17:58:42 +02:00
Bence Szépkúti 3b1cba82c8 Fix reference to deprecated macro in documentation
The reference was introduced in #4174.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2021-04-08 16:10:05 +02:00
Ronald Cron df2e4f22a8
Merge pull request #4290 from ronald-cron-arm/hash-dispatch-follow-up
Hash dispatch follow up
2021-04-08 09:13:19 +02:00
Dave Rodgman 6741fc9148
Merge pull request #4306 from daverodgman/fix_mps_trace_macros
Capitalise MPS trace macros
2021-04-07 16:07:50 +01:00
Dave Rodgman 0708974d85
Merge pull request #4309 from daverodgman/check-names-grep-backport
Make check-names.sh accept any grep
2021-04-07 15:27:44 +01:00
Dave Rodgman 95caad3743 Make check-names.sh accept any grep
check-names.sh works fine with GNU and with modern FreeBSD grep
so remove the check for GNU grep.

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2021-04-07 15:01:28 +01:00
Dave Rodgman add60da95b Scan library for enums in list-enum-consts.sh
Add library/*.h to the list of files scanned for enums in
list-enum-consts.sh, consistent with the changes made to
list-macros.sh.

This is needed to ensure that check-names.sh passes for the MPS
trace enums.

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2021-04-07 14:48:14 +01:00
Dave Rodgman b746825418 Capitalise MPS trace macros
Capitalise the MPS trace macros, as per the coding style (and make a slight
change to naming convention to avoid a name collision).

Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
2021-04-07 12:45:35 +01:00
Gilles Peskine b420259777
Merge pull request #4174 from gilles-peskine-arm/psa-eddsa-spec
PSA Encodings for EdDSA
2021-04-07 11:20:27 +02:00
Gilles Peskine 7bc6a3749c
Merge pull request #3183 from meuter/development
RSA PSS signature generation with the option to specify the salt length
2021-04-06 21:36:06 +02:00
Gilles Peskine 889828d0b4
Merge pull request #4279 from ronald-cron-arm/fix-invalid-id-error-code
Fix error code when creating/registering a key with invalid id
2021-04-06 18:46:30 +02:00
Gilles Peskine 5ef0b97f87 Don't comment out dependencies
This was a mistake, there's no reason for the dependencies to be
commented out. The dependencies on PSA_WANT_ALG_EDDSA aren't actually
necessary at the moment, but they might be in certain configurations
if some macros are simplified to save code size.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-06 12:49:56 +02:00
Gilles Peskine a8a7033cb1
Merge pull request #3615 from gilles-peskine-arm/ssl-opt-less-grep-development
Speed up ssl-opt.sh when running a small number of test cases
2021-04-06 11:05:34 +02:00
Gilles Peskine ff6a32d79c Fix low-probability arithmetic error in ECC
Fix the subtraction in fix_negative, which was incorrectly not looking
for a carry. This caused the result to be wrong when the least
significant limb of N was 0. Fix #4296.

The bug was introduced by d10e8fae9e
"Optimize fix_negative". Thanks to Philippe Antoine (catenacyber) for
reporting the bug which was found by his EC differential fuzzer.
Credit to OSS-Fuzz.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-04 01:10:41 +02:00
Gilles Peskine 349b37273e Fix an incorrect comment about fix_negative
We're subtracting multiples of 2^bits, not 2^(bits+32).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-04 01:10:41 +02:00
Gilles Peskine 618be2ec41 Add unit tests for fix_negative
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-04 01:10:41 +02:00
Gilles Peskine 80ba850e27 Create a header file for ECP internal functions
This header file will contain declarations of functions that are not
part of the public ABI/API, and must not be called from other modules,
but can be called from unit tests.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-04 01:10:41 +02:00
Gilles Peskine ca91ee4ed8 Unit test function for mbedtls_ecp_muladd
Write a simple unit test for mbedtls_ecp_muladd().

Add just one pair of test cases. #2 fails since PR #3512. Thanks to
Philippe Antoine (catenacyber) for the test case, found by ecfuzzer.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-04 01:10:41 +02:00
Gilles Peskine 80f56733b0 Fix and simplify sign handling in mbedtls_mpi_read_string
Move the handling of the sign out of the base-specific loops. This
both simplifies the code, and corrects an edge case: the code in the
non-hexadecimal case depended on mbedtls_mpi_mul_int() preserving the
sign bit when multiplying a "negative zero" MPI by an integer, which
used to be the case but stopped with PR #2512.

Fix #4295. Thanks to Guido Vranken for analyzing the cause of the bug.
Credit to OSS-Fuzz.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-04 01:10:07 +02:00
Gilles Peskine b13a26cd8c Add a few unit tests for mbedtls_mpi_read_string with leading zeros
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-04-03 18:25:29 +02:00
Ronald Cron 6cc6631015 psa: Return in error when requested to copy a key to an opaque driver
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-02 12:27:47 +02:00
Ronald Cron a0bc2cd4f1 tests: psa: Fix copy fail test argument
Fix copy fail test argument for only one of them
to be invalid.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-02 08:56:20 +02:00
Gilles Peskine d5200371ec
Merge pull request #3512 from gilles-peskine-arm/ecp-alloc-202007
Reduce the number of allocations in ECP operations
2021-04-02 00:08:35 +02:00
Ronald Cron 980230e965 psa: include: Update and improve multipart-op struct design notes
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 16:54:38 +02:00
Ronald Cron dd3b539573 psa: include: Clarify scope of crypto_builtin/driver_contexts.h
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 16:54:38 +02:00
Ronald Cron 06c84ca5f8 psa: include: Merge crypto_builtin_hash.h and crypto_builtin_cipher.h
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 16:54:30 +02:00
Ronald Cron e31fd11ab3 psa: include: Fix comments
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 15:59:57 +02:00
Ronald Cron 602f986511 Add change log
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 14:55:04 +02:00
Ronald Cron d3b458c452 tests: psa: Fix expected error code
Fix expected error code when importing a persistent key or
registering a key with an invalid key identifier:
PSA_ERROR_INVALID_ARGUMENT instead of PSA_ERROR_INVALID_HANDLE.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 14:54:50 +02:00
Ronald Cron 77e412cd71 psa: Fix error code when creating/registering a key with invalid id
When creating a persistent key or registering a key
with an invalid key identifier return
PSA_ERROR_INVALID_ARGUMENT instead of
PSA_ERROR_INVALID_HANDLE.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 14:05:41 +02:00
Ronald Cron 88a55464f5 tests: psa: Add negative tests for psa_copy_key()
Add negative tests checking that psa_copy_key()
returns PSA_ERROR_INVALID_ARGUMENT when passed in
an invalid key identifier or key lifetime for the
target key.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 14:05:41 +02:00
Ronald Cron de825e62a6 psa: Fix psa_validate_key_persistence documentation
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2021-04-01 14:05:41 +02:00