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2644 commits

Author SHA1 Message Date
Jaeden Amero 8fedeaacd5
Merge pull request #2871 from gilles-peskine-arm/test_malloc_0_null-2.16
Backport 2.16: Test the library when malloc(0) returns NULL
2019-10-22 13:41:48 +01:00
Gilles Peskine 33685f51f3 'make test' must fail if Asan fails
When running 'make test' with GNU make, if a test suite program
displays "PASSED", this was automatically counted as a pass. This
would in particular count as passing:
* A test suite with the substring "PASSED" in a test description.
* A test suite where all the test cases succeeded, but the final
  cleanup failed, in particular if a sanitizer reported a memory leak.

Use the test executable's return status instead to determine whether
the test suite passed. It's always 0 on PASSED unless the executable's
cleanup code fails, and it's never 0 on any failure.

Fix ARMmbed/mbed-crypto#303
2019-10-21 20:48:05 +02:00
Gilles Peskine ac479065f0 Asan make builds: avoid sanitizer recovery
Some sanitizers default to displaying an error message and recovering.
This could result in a test being recorded as passing despite a
complaint from the sanitizer. Turn off sanitizer recovery to avoid
this risk.
2019-10-21 20:48:05 +02:00
Gilles Peskine b1478e8ebc Use UBsan in addition to Asan with 'make test'
When building with make with the address sanitizer enabled, also
enable the undefined behavior sanitizer.
2019-10-21 20:48:05 +02:00
Gilles Peskine ff26b04fe3 Unify ASan options in make builds
Use a common set of options when building with Asan without CMake.
2019-10-21 20:48:02 +02:00
Jaeden Amero b9fc0798d2 Merge remote-tracking branch 'origin/pr/2864' into mbedtls-2.16
* origin/pr/2864:
  Fix compilation error
  Add const to variable
  Fix endianity issue when reading uint32
  Increase test suite timeout
  Reduce stack usage of test_suite_pkcs1_v15
  Reduce stack usage of test_suite_pkcs1_v21
  Reduce stack usage of test_suite_rsa
  Reduce stack usage of test_suite_pk
2019-10-02 18:00:31 +01:00
Jaeden Amero b0328ba8a3 Merge remote-tracking branch 'origin/pr/2323' into mbedtls-2.16
* origin/pr/2323:
  Add missing dependencies in test_suite_cipher.gcm
  Adapt ChangeLog
  Add NIST AES GCM test vectors to single-step cipher API test suite
2019-10-02 17:57:37 +01:00
Gilles Peskine c6b098655e Add a test component with malloc(0) returning NULL
Exercise the library functions with calloc returning NULL for a size
of 0. Make this a separate job with UBSan (and ASan) to detect
places where we try to dereference the result of calloc(0) or to do
things like

    buf = calloc(size, 1);
    if (buf == NULL && size != 0) return INSUFFICIENT_MEMORY;
    memcpy(buf, source, size);

which has undefined behavior when buf is NULL at the memcpy call even
if size is 0.

This is needed because other test components jobs either use the system
malloc which returns non-NULL on Linux and FreeBSD, or the
memory_buffer_alloc malloc which returns NULL but does not give as
useful feedback with ASan (because the whole heap is a single C
object).
2019-09-30 13:58:12 +02:00
Ron Eldor ae9f2a2acc Fix compilation error
Change test_info.failed to test_info.result,
as it was previously changed.
2019-09-25 15:04:21 +03:00
Ron Eldor 39512b4b8a Add const to variable
Add const type that was accidently removed.
2019-09-25 14:53:42 +03:00
Ron Eldor 6e76108e15 Fix endianity issue when reading uint32
The uint32 is given as a bigendian stream, in the tests, however,
the char buffer that collected the stream read it as is,
without converting it. Add a temporary buffer, to call `greentea_getc()`
8 times, and then put it in the correct endianity for input to `unhexify()`.
2019-09-25 14:53:35 +03:00
Ron Eldor 2ad73aa388 Increase test suite timeout
Increase the test suite timeouit from 180 seconds, to 800 seconds,
since some tests consume more time, even if all tests are skipped.
2019-09-25 14:53:26 +03:00
Ron Eldor 3adb981383 Reduce stack usage of test_suite_pkcs1_v15
Reduce the stack usage of the `test_suite_pkcs1_v15` by reducing the
size of the buffers used in the tests, to a reasonable big enough size.
2019-09-25 14:53:15 +03:00
Ron Eldor 5d7254a091 Reduce stack usage of test_suite_pkcs1_v21
Reduce the stack usage of the `test_suite_pkcs1_v21` by reducing the
size of the buffers used in the tests, to a reasonable big enough size,
and change the size sent to the API to sizeof output.
2019-09-25 14:53:04 +03:00
Ron Eldor e4c5fa74b8 Reduce stack usage of test_suite_rsa
Reduce the stack usage of the `test_suite_rsa` by reducing the
size of the buffers used in the tests, to a reasonable big enough size,
and change the data size to decrypt in the data file.
2019-09-25 14:51:19 +03:00
Ron Eldor 5533f4aff1 Reduce stack usage of test_suite_pk
Reduce the stack usage of the `test_suite_pk` by reducing the
size of the buffers used in the tests, to a reasonable big enough size.
2019-09-25 14:51:12 +03:00
Andrzej Kurek 60ebd98a50 Enable MBEDTLS_MEMORY_DEBUG in memory buffer alloc test in all.sh 2019-09-10 03:07:44 -04:00
Andrzej Kurek c73f857217 Remove unnecessary memory buffer alloc and memory backtrace unsets
Also unify the sanitization LDFLAGS with development
2019-09-10 03:07:29 -04:00
Andrzej Kurek 1f5a596fe2 Disable DTLS proxy tests for MEMORY_BUFFER_ALLOC test 2019-09-09 05:29:02 -04:00
Andrzej Kurek 1d0708215b all.sh: restructure memory allocator tests
Run basic tests and ssl-opt with memory backtrace disabled, then
run basic tests only with it enabled.
2019-09-09 05:28:53 -04:00
Hanno Becker d130b98c68 Add missing dependency in memory buffer alloc set in all.sh 2019-09-09 05:28:42 -04:00
Hanno Becker f8799e8b84 Add all.sh run with full config and ASan enabled 2019-09-09 05:25:33 -04:00
Hanno Becker 74b5e34d1b Add all.sh run with MBEDTLS_MEMORY_BUFFER_ALLOC_C enabled
With the removal of MBEDTLS_MEMORY_BUFFER_ALLOC_C from the
full config, there are no tests for it remaining in all.sh.
This commit adds a build as well as runs of `make test` and
`ssl-opt.sh` with MBEDTLS_MEMORY_BUFFER_ALLOC_C enabled to all.sh.
2019-09-09 05:25:21 -04:00
Andrzej Kurek a9c2a3b244 Adapt all.sh to removal of buffer allocator from full config
Previously, numerous all.sh tests manually disabled the buffer allocator
or memory backtracting after setting a full config as the starting point.

With the removal of MBEDTLS_MEMORY_BACKTRACE and MBEDTLS_MEMORY_BUFFER_ALLOC_C
from full configs, this is no longer necessary.
2019-09-09 05:22:39 -04:00
Jaeden Amero fcb8711f6f Bump version to Mbed TLS 2.16.3 2019-09-06 13:27:00 +01:00
Jaeden Amero 89408672eb Merge remote-tracking branch 'origin/mbedtls-2.16' into mbedtls-2.16-restricted
* origin/mbedtls-2.16:
  Changelog entry
  Check for zero length and NULL buffer pointer
  ssl-opt.sh: wait for proxy to start before running the script further
  Adapt ChangeLog
  Fix mpi_bigendian_to_host() on bigendian systems
2019-09-05 18:14:55 +01:00
Unknown 43dc0d6a8f ssl-opt.sh: wait for proxy to start before running the script further 2019-09-04 06:06:46 -04:00
Gilles Peskine 6d079baba8 Merge remote-tracking branch 'upstream-restricted/mbedtls-2.16-proposed' into mbedtls-2.16-restricted 2019-08-14 16:39:36 +02:00
Gilles Peskine 4d7c74811b Merge remote-tracking branch 'upstream-restricted/pr/503' into mbedtls-2.16-restricted 2019-08-14 16:39:24 +02:00
Gilles Peskine 33f66ba6fd Merge remote-tracking branch 'upstream-restricted/pr/556' into mbedtls-2.16-restricted 2019-08-14 16:38:26 +02:00
Gilles Peskine 3a930650c8 Merge remote-tracking branch 'upstream-restricted/pr/613' into mbedtls-2.16-restricted 2019-08-14 16:36:30 +02:00
Gilles Peskine 376d0d9e4a Merge remote-tracking branch 'upstream-public/pr/2736' into mbedtls-2.16 2019-08-14 16:00:53 +02:00
Gilles Peskine c1b621c5cb Merge remote-tracking branch 'upstream-public/pr/2754' into mbedtls-2.16 2019-08-14 16:00:01 +02:00
Gilles Peskine 7a93214f15 Merge remote-tracking branch 'upstream-public/pr/2778' into mbedtls-2.16 2019-08-14 15:58:47 +02:00
Gilles Peskine e30c09198c Exclude DTLS 1.2 only with older OpenSSL
compat.sh used to skip OpenSSL altogether for DTLS 1.2, because older
versions of OpenSSL didn't support it. But these days it is supported.

We don't want to use DTLS 1.2 with OpenSSL unconditionally, because we
still use legacy versions of OpenSSL to test with legacy ciphers. So
check whether the version we're using supports it.
2019-08-13 11:44:04 +02:00
Gilles Peskine 560f332dd2 Document the rationale for the armel build
Call the component xxx_arm5vte, because that's what it does. Explain
"armel", and more generally why this component exists, in a comment.
2019-08-09 16:06:27 +02:00
Gilles Peskine e07b9ff2d9 Switch armel build to -Os
Without any -O option, the default is -O0, and then the assembly code
is not used, so this would not be a non-regression test for the
assembly code that doesn't build.
2019-08-08 16:12:46 +02:00
Gilles Peskine 0bd284dc51 Add a build on ARMv5TE in ARM mode
Non-regression test for
"bn_mul.h: require at least ARMv6 to enable the ARM DSP code"
2019-08-05 11:34:25 +02:00
Gilles Peskine c3c738e0fe
Merge pull request #639 from ARMmbed/mbedtls-2.16-proposed
Merge mbedtls-2.16 into mbedtls-2.16-restricted
2019-08-05 11:06:37 +02:00
Gilles Peskine a60dc25e9f
Merge pull request #2419 from RonEld/Backport2.16_2734
Backport 2.16: Update soon to be expired crl
2019-08-03 13:38:20 +02:00
Gilles Peskine 1e3eb28ae3
Merge pull request #2735 from hanno-arm/skip_test-2.16
2.16: Add TEST_ASSUME macro to allow skipping tests at runtime
2019-08-03 13:37:59 +02:00
Gilles Peskine 756b3f2c25 entropy_nv_seed: cope with SHA-256
This test case was only executed if the SHA-512 module was enabled and
MBEDTLS_ENTROPY_FORCE_SHA256 was not enabled, so "config.pl full"
didn't have a chance to reach it even if that enabled
MBEDTLS_PLATFORM_NV_SEED_ALT.

Now all it takes to enable this test is MBEDTLS_PLATFORM_NV_SEED_ALT
and its requirements, and the near-ubiquitous MD module.
2019-07-19 17:43:03 +02:00
Gilles Peskine 0450eecfae entropy_nv_seed: clean up properly
Call mbedtls_entropy_free on test failure.

Restore the previous NV seed functions which the call to
mbedtls_platform_set_nv_seed() changed. This didn't break anything,
but only because the NV seed functions used for these tests happened
to work for the tests that got executed later in the .data file.
2019-07-19 17:43:03 +02:00
Gilles Peskine fc41bd7f35 Don't call memset after calloc
memset has undefined behavior when either pointer can be NULL, which
is the case when it's the result of malloc/calloc with a size of 0.
The memset calls here are useless anyway since they come immediately
after calloc.
2019-07-19 17:42:47 +02:00
Jaeden Amero af4578f14b Merge remote-tracking branch 'origin/mbedtls-2.16' into mbedtls-2.16-restricted
* origin/mbedtls-2.16:
  Fix parsing issue when int parameter is in base 16
  Refactor receive_uint32()
  Refactor get_byte function
  Make the script portable to both pythons
  Update the test encoding to support python3
  update the test script
  tests: Limit each log to 10 GiB
2019-07-12 10:16:11 +01:00
Jaeden Amero cb686a1b6b Merge remote-tracking branch 'origin/pr/2743' into mbedtls-2.16
* origin/pr/2743:
  tests: Limit each log to 10 GiB
2019-07-11 16:19:21 +01:00
Ron Eldor 7c52e229d5 Fix parsing issue when int parameter is in base 16
Fix error `ValueError: invalid literal for int() with base 10:` that
is caused when a parameter is given in base 16. Use relevant base
when calling `int()` function.
2019-07-11 14:36:50 +03:00
Ron Eldor e81ff54881 Refactor receive_uint32()
Call `greentea_getc()` 8 times, and then `unhexify` once, instead of
calling `receive_byte()`, which inside calls `greentea_getc()` twice,
for every hex digit.
2019-07-11 14:36:34 +03:00
Ron Eldor 3dd77909d3 Refactor get_byte function
Change implementation of `get_byte()` to call `unhexify()`.
2019-07-11 14:36:27 +03:00
Ron Eldor 9d40da275d Make the script portable to both pythons
Make the script work for python3 and for python2
2019-07-11 14:36:20 +03:00
Ron Eldor b43fe57d34 Update the test encoding to support python3
Since Python3 handles encoding differently than Python2,
a change in the way the data is encoded and sent to the target is needed.
1. Change the test data to be sent as hex string
2. Convert the characters to binary bytes.

This is done because the mbed tools translate the encoding differently
(mbed-greentea, and mbed-htrunner)
2019-07-11 14:36:13 +03:00
Ron Eldor 56b6e523fa update the test script
Update `mbedtls_test.py` script to work with Python 3.7.
resolves #2653
2019-07-11 14:36:06 +03:00
Ron Eldor 36503922a0 Update certificates to expire in 2029
Update certificates that expire on 2021, to prolong their validity,
to make tests pass three years ahead.
2019-07-10 18:35:10 +03:00
Ron Eldor 9647bc56da Update soon to be expired crl
Update crl.pem, as it will expire on November 25 2019.
Resolves #2357.
2019-07-10 17:26:39 +03:00
Jaeden Amero a258ccd368 tests: Limit each log to 10 GiB
Limit log output in compat.sh and ssl-opt.sh, in case of failures with
these scripts where they may output seemingly unlimited length error
logs.

Note that ulimit -f uses units of 512 bytes, so we use 10 * 1024 * 1024
* 2 to get 10 GiB.
2019-07-10 08:51:56 +01:00
Jaeden Amero d7ec086e04 Merge remote-tracking branch 'origin/mbedtls-2.16' into mbedtls-2.16-restricted
* origin/mbedtls-2.16:
  Split _abi_compliance_command into smaller functions
  Record the commits that were compared
  Document how to build the typical argument for -s
  Allow running /somewhere/else/path/to/abi_check.py
  Allow TODO in code
  Use the docstring in the command line help
2019-07-10 08:47:43 +01:00
k-stachowiak ad1836af58 Add a test for mlaformed ECJPAKE context 2019-07-08 15:44:37 +02:00
Gilles Peskine dc25c32663 Test that a shared library build produces a dynamically linked executable 2019-07-05 15:48:03 +02:00
Gilles Peskine 2c47ffc37f Test that the shared library build with CMake works 2019-07-05 15:46:46 +02:00
Gilles Peskine 87bf1b5cf4 Add a test of MBEDTLS_CONFIG_FILE
configs/README.txt documents that you can use an alternative
configuration file by defining the preprocessor symbol
MBEDTLS_CONFIG_FILE. Test this.
2019-07-05 15:46:46 +02:00
Hanno Becker d3369f6d01 Add TEST_ASSUME macro to allow skipping tests at runtime
This commit adds a macro TEST_ASSUME to the test infrastructure
which allows to skip tests based on unmet conditions determined
at runtime.
2019-07-05 13:41:08 +01:00
Gilles Peskine 47d7c2d7cb Allow TODO in code
Don't reject TODO in code. Fix #2587
2019-07-05 10:55:53 +02:00
Gilles Peskine 79cfef02d9 Use the docstring in the command line help 2019-07-05 10:55:53 +02:00
Jaeden Amero 7b03e87fbc Merge remote-tracking branch 'restricted/pr/582' into mbedtls-2.16-restricted
* restricted/pr/582:
  Add a test for signing content with a long ECDSA key
  Add documentation notes about the required size of the signature buffers
  Add missing MBEDTLS_ECP_C dependencies in check_config.h
  Change size of preallocated buffer for pk_sign() calls
2019-06-24 11:40:59 +01:00
Jaeden Amero 5ecbd14fdd Merge remote-tracking branch 'origin/pr/2701' into mbedtls-2.16
* origin/pr/2701:
  Add all.sh component that exercises invalid_param checks
  Remove mbedtls_param_failed from programs
  Make it easier to define MBEDTLS_PARAM_FAILED as assert
  Make test suites compatible with #include <assert.h>
  Pass -m32 to the linker as well
2019-06-21 16:00:06 +01:00
Jaeden Amero a5ebd5fe10 Merge remote-tracking branch 'origin/pr/2615' into mbedtls-2.16
* origin/pr/2615:
  Use 'config.pl baremetal' in all.sh
2019-06-21 15:59:34 +01:00
Jaeden Amero 096bccf204 Merge remote-tracking branch 'origin/pr/2450' into mbedtls-2.16
* origin/pr/2450:
  Fix #2370, minor typos and spelling mistakes
2019-06-21 15:59:29 +01:00
Jaeden Amero f580d43bad Merge remote-tracking branch 'origin/pr/2053' into mbedtls-2.16
* origin/pr/2053:
  Clarify ChangeLog entry for fix to #1628
  Add Changelog entry for clang test-ref-configs.pl fix
  Enable more compiler warnings in tests/Makefile
  Change file scoping of test helpers.function
2019-06-21 15:59:16 +01:00
Jaeden Amero d81c11b8ab Merge remote-tracking branch 'origin/pr/2687' into mbedtls-2.16
* origin/pr/2687:
  Update library to 2.16.2
2019-06-18 14:23:28 +01:00
Gilles Peskine dcab202368 Add all.sh component that exercises invalid_param checks
With the change to the full config, there were no longer any tests
that exercise invalid-parameter behavior. The test suite exercises
invalid-parameter behavior by calling TEST_INVALID_PARAM and friends,
relying on the test suite's mbedtls_check_param function. This
function is only enabled if MBEDTLS_CHECK_PARAMS is defined but not
MBEDTLS_CHECK_PARAMS_ASSERT.

Add a component to all.sh that enables MBEDTLS_CHECK_PARAMS but
disables MBEDTLS_CHECK_PARAMS_ASSERT and doesn't define
MBEDTLS_PARAM_FAILED. This way, the xxx_invalid_param() tests do run.
Since sample programs don't provide a mbedtls_check_param function,
this component doesn't build the sample programs.
2019-06-17 19:11:35 +02:00
Gilles Peskine 137d31bf5a Make test suites compatible with #include <assert.h>
Don't use the macro name assert. It's technically permitted as long as
<assert.h> is not included, but it's fragile, because it means the
code and any header that it includes must not include <assert.h>.
2019-06-17 19:06:52 +02:00
Gilles Peskine 8118e4672e Pass -m32 to the linker as well
For unit tests and sample programs, CFLAGS=-m32 is enough to get a
32-bit build, because these programs are all compiled directly
from *.c to the executable in one shot. But with makefile rules that
first build object files and then link them, LDFLAGS=-m32 is also
needed.
2019-06-17 19:06:28 +02:00
Jaeden Amero 418e7611f6 Merge remote-tracking branch 'origin/pr/2484' into mbedtls-2.16
* origin/pr/2484:
  Correct placement of ChangeLog entry
  Improve documentation of mbedtls_x509_get_ext()
  Adapt ChangeLog
  Always return a high-level error code from X.509 module
  Obey bounds of ASN.1 substructures
2019-06-14 15:28:42 +01:00
Jaeden Amero 7aed01c0dc Merge remote-tracking branch 'origin/pr/2481' into mbedtls-2.16
* origin/pr/2481:
  Document support for MD2 and MD4 in programs/x509/cert_write
  Correct name of X.509 parsing test for well-formed, ill-signed CRT
  Add test cases exercising successful verification of MD2/MD4/MD5 CRT
  Add test case exercising verification of valid MD2 CRT
  Add MD[245] test CRTs to tree
  Add instructions for MD[245] test CRTs to tests/data_files/Makefile
  Add suppport for MD2 to CSR and CRT writing example programs
  Convert further x509parse tests to use lower-case hex data
  Correct placement of ChangeLog entry
  Adapt ChangeLog
  Use SHA-256 instead of MD2 in X.509 CRT parsing tests
  Consistently use lower case hex data in X.509 parsing tests
2019-06-14 08:50:47 +01:00
Jaeden Amero 1adf212a1b Merge remote-tracking branch 'origin/pr/2497' into mbedtls-2.16
* origin/pr/2497:
  Re-generate library/certs.c from script
  Add new line at the end of test-ca2.key.enc
  Use strict syntax to annotate origin of test data in certs.c
  Add run to all.sh exercising !MBEDTLS_PEM_PARSE_C + !MBEDTLS_FS_IO
  Allow DHM self test to run without MBEDTLS_PEM_PARSE_C
  ssl-opt.sh: Auto-skip tests that use files if MBEDTLS_FS_IO unset
  Document origin of hardcoded certificates in library/certs.c
  Adapt ChangeLog
  Rename server1.der to server1.crt.der
  Add DER encoded files to git tree
  Add build instructions to generate DER versions of CRTs and keys
  Document "none" value for ca_path/ca_file in ssl_client2/ssl_server2
  ssl_server2: Skip CA setup if `ca_path` or `ca_file` argument "none"
  ssl_client2: Skip CA setup if `ca_path` or `ca_file` argument "none"
  Correct white spaces in ssl_server2 and ssl_client2
  Adapt ssl_client2 to parse DER encoded test CRTs if PEM is disabled
  Adapt ssl_server2 to parse DER encoded test CRTs if PEM is disabled
2019-06-14 08:48:54 +01:00
Jaeden Amero ff36cdaa84 Update library to 2.16.2 2019-06-11 17:27:32 +01:00
k-stachowiak 11f38e2f61 Add a test for signing content with a long ECDSA key
Due to the way the current PK API works, it may have not been clear
for the library clients, how big output buffers they should pass
to the signing functions. Depending on the key type they depend on
MPI or EC specific compile-time constants.

Inside the library, there were places, where it was assumed that
the MPI size will always be enough, even for ECDSA signatures.
However, for very small sizes of the MBEDTLS_MPI_MAX_SIZE and
sufficiently large key, the EC signature could exceed the MPI size
and cause a stack overflow.

This test establishes both conditions -- small MPI size and the use
of a long ECDSA key -- and attempts to sign an arbitrary file.
This can cause a stack overvlow if the signature buffers are not
big enough, therefore the test is performed for an ASan build.
2019-06-10 11:49:54 +02:00
Jaeden Amero adffe39fdb test: Remove redundant 0-byte decryption test
Remove the "Decrypt empty buffer" test, as ChaCha20 is a stream cipher
and 0 bytes encrypted is identical to a 0 length buffer. The "ChaCha20
Encrypt and decrypt 0 bytes" test will test decryption of a 0 length
buffer.
2019-06-06 12:04:13 +01:00
Jaeden Amero 4e47aa0120 test: Check empty buffer decryption for chachapoly
Previously, even in the Chacha20 and Chacha20-Poly1305 tests, we would
test that decryption of an empty buffer would work with
MBEDTLS_CIPHER_AES_128_CBC.

Make the cipher used with the dec_empty_buf() test configurable, so that
Chacha20 and Chacha20-Poly1305 empty buffer tests can use ciphers other
than AES CBC. Then, make the Chacha20 and Chacha20-Poly1305 empty buffer
tests use the MBEDTLS_CIPHER_CHACHA20 and
MBEDTLS_CIPHER_CHACHA20_POLY1305 cipher suites.
2019-06-06 12:04:13 +01:00
Hanno Becker 2f472140f9 Always return a high-level error code from X.509 module
Some functions within the X.509 module return an ASN.1 low level
error code where instead this error code should be wrapped by a
high-level X.509 error code as in the bulk of the module.

Specifically, the following functions are affected:
- mbedtls_x509_get_ext()
- x509_get_version()
- x509_get_uid()

This commit modifies these functions to always return an
X.509 high level error code.

Care has to be taken when adapting `mbetls_x509_get_ext()`:
Currently, the callers `mbedtls_x509_crt_ext()` treat the
return code `MBEDTLS_ERR_ASN1_UNEXPECTED_TAG` specially to
gracefully detect and continue if the extension structure is not
present. Wrapping the ASN.1 error with
`MBEDTLS_ERR_X509_INVALID_EXTENSIONS` and adapting the check
accordingly would mean that an unexpected tag somewhere
down the extension parsing would be ignored by the caller.

The way out of this is the following: Luckily, the extension
structure is always the last field in the surrounding structure,
so if there is some data remaining, it must be an Extension
structure, so we don't need to deal with a tag mismatch gracefully
in the first place.

We may therefore wrap the return code from the initial call to
`mbedtls_asn1_get_tag()` in `mbedtls_x509_get_ext()` by
`MBEDTLS_ERR_X509_INVALID_EXTENSIONS` and simply remove
the special treatment of `MBEDTLS_ERR_ASN1_UNEXPECTED_TAG`
in the callers `x509_crl_get_ext()` and `x509_crt_get_ext()`.

This renders `mbedtls_x509_get_ext()` unsuitable if it ever
happened that an Extension structure is optional and does not
occur at the end of its surrounding structure, but for CRTs
and CRLs, it's fine.

The following tests need to be adapted:
- "TBSCertificate v3, issuerID wrong tag"
  The issuerID is optional, so if we look for its presence
  but find a different tag, we silently continue and try
  parsing the subjectID, and then the extensions. The tag '00'
  used in this test doesn't match either of these, and the
  previous code would hence return LENGTH_MISMATCH after
  unsucessfully trying issuerID, subjectID and Extensions.
  With the new code, any data remaining after issuerID and
  subjectID _must_ be Extension data, so we fail with
  UNEXPECTED_TAG when trying to parse the Extension data.
- "TBSCertificate v3, UIDs, invalid length"
  The test hardcodes the expectation of
  MBEDTLS_ERR_ASN1_INVALID_LENGTH, which needs to be
  wrapped in MBEDTLS_ERR_X509_INVALID_FORMAT now.

Fixes #2431.
2019-06-04 14:01:10 +01:00
Hanno Becker 4e1bfc19cc Obey bounds of ASN.1 substructures
When parsing a substructure of an ASN.1 structure, no field within
the substructure must exceed the bounds of the substructure.
Concretely, the `end` pointer passed to the ASN.1 parsing routines
must be updated to point to the end of the substructure while parsing
the latter.

This was previously not the case for the routines
- x509_get_attr_type_and_value(),
- mbedtls_x509_get_crt_ext(),
- mbedtls_x509_get_crl_ext().
These functions kept using the end of the parent structure as the
`end` pointer and would hence allow substructure fields to cross
the substructure boundary. This could lead to successful parsing
of ill-formed X.509 CRTs.

This commit fixes this.

Care has to be taken when adapting `mbedtls_x509_get_crt_ext()`
and `mbedtls_x509_get_crl_ext()`, as the underlying function
`mbedtls_x509_get_ext()` returns `0` if no extensions are present
but doesn't set the variable which holds the bounds of the Extensions
structure in case the latter is present. This commit addresses
this by returning early from `mbedtls_x509_get_crt_ext()` and
`mbedtls_x509_get_crl_ext()` if parsing has reached the end of
the input buffer.

The following X.509 parsing tests need to be adapted:
- "TBSCertificate, issuer two inner set datas"
  This test exercises the X.509 CRT parser with a Subject name
  which has two empty `AttributeTypeAndValue` structures.
  This is supposed to fail with `MBEDTLS_ERR_ASN1_OUT_OF_DATA`
  because the parser should attempt to parse the first structure
  and fail because of a lack of data. Previously, it failed to
  obey the (0-length) bounds of the first AttributeTypeAndValue
  structure and would try to interpret the beginning of the second
  AttributeTypeAndValue structure as the first field of the first
  AttributeTypeAndValue structure, returning an UNEXPECTED_TAG error.
- "TBSCertificate, issuer, no full following string"
  This test exercises the parser's behaviour on an AttributeTypeAndValue
  structure which contains more data than expected; it should therefore
  fail with MBEDTLS_ERR_ASN1_LENGTH_MISMATCH. Because of the missing bounds
  check, it previously failed with UNEXPECTED_TAG because it interpreted
  the remaining byte in the first AttributeTypeAndValue structure as the
  first byte in the second AttributeTypeAndValue structure.
- "SubjectAltName repeated"
  This test should exercise two SubjectAltNames extensions in succession,
  but a wrong length values makes the second SubjectAltNames extension appear
  outside of the Extensions structure. With the new bounds in place, this
  therefore fails with a LENGTH_MISMATCH error. This commit adapts the test
  data to put the 2nd SubjectAltNames extension inside the Extensions
  structure, too.
2019-06-04 14:01:10 +01:00
Hanno Becker bdf2035710 Correct name of X.509 parsing test for well-formed, ill-signed CRT 2019-06-03 16:20:05 +01:00
Hanno Becker cfa341844f Add test cases exercising successful verification of MD2/MD4/MD5 CRT 2019-06-03 16:20:02 +01:00
Hanno Becker 4d7210c23c Add test case exercising verification of valid MD2 CRT
The X.509 parsing test suite test_suite_x509parse contains a test
exercising X.509 verification for a valid MD4/MD5 certificate in a
profile which doesn't allow MD4/MD5. This commit adds an analogous
test for MD2.
2019-06-03 16:19:59 +01:00
Hanno Becker 8d59f250bc Add MD[245] test CRTs to tree 2019-06-03 16:19:46 +01:00
Hanno Becker 928f617747 Add instructions for MD[245] test CRTs to tests/data_files/Makefile 2019-06-03 16:19:39 +01:00
Hanno Becker 8b3bcbab79 Convert further x509parse tests to use lower-case hex data
With emacs: `replace-regexp "\([a-fA-F0-9]*\)" "\,(downcase \1)"`
2019-06-03 16:17:58 +01:00
Jaeden Amero ada38317dd test: Always use make clean by itself
When running make with parallelization, running both "clean" and "lib"
with a single make invocation can lead to each target building in
parallel. It's bad if lib is partially done building something, and then
clean deletes what was built. This can lead to errors later on in the
lib target.

    $ make -j9 clean lib
      CC    aes.c
      CC    aesni.c
      CC    arc4.c
      CC    aria.c
      CC    asn1parse.c
      CC    ./library/error.c
      CC    ./library/version.c
      CC    ./library/version_features.c
      AR    libmbedcrypto.a
    ar: aes.o: No such file or directory
    Makefile:120: recipe for target 'libmbedcrypto.a' failed
    make[2]: *** [libmbedcrypto.a] Error 1
    Makefile:152: recipe for target 'libmbedcrypto.a' failed
    make[1]: *** [libmbedcrypto.a] Error 2
    Makefile:19: recipe for target 'lib' failed
    make: *** [lib] Error 2
    make: *** Waiting for unfinished jobs....

To avoid this sort of trouble, always invoke clean by itself without
other targets throughout the library. Don't run clean in parallel with
other rules. The only place where clean was run in parallel with other
targets was in list-symbols.sh.
2019-05-31 17:49:25 +01:00
Hanno Becker 67d1848ed0 Use SHA-256 instead of MD2 in X.509 CRT parsing tests
- Replace 'RSA with MD2' OID '2a864886f70d010102' by
  'RSA with SHA-256' OID '2a864886f70d01010b':
  Only the last byte determines the hash, and
  `MBEDTLS_OID_PKCS1_MD2 == MBEDTLS_OID_PKCS1 "\x02"`
  `MBEDTLS_OID_PKCS1_SHA256 == MBEDTLS_OID_PKCS1 "\x0b"`
  See oid.h.
- Replace MD2 dependency by SHA256 dependency.
- Adapt expected CRT info output.
2019-05-30 11:19:08 +01:00
Hanno Becker 556e6d84ea Consistently use lower case hex data in X.509 parsing tests 2019-05-30 11:19:08 +01:00
Hanno Becker dd7e193f49 Add new line at the end of test-ca2.key.enc 2019-05-30 10:58:12 +01:00
Hanno Becker e562e7dbeb Add run to all.sh exercising !MBEDTLS_PEM_PARSE_C + !MBEDTLS_FS_IO 2019-05-30 10:58:12 +01:00
Hanno Becker 7a11e72a4f ssl-opt.sh: Auto-skip tests that use files if MBEDTLS_FS_IO unset
This should allow to run ssl-opt.sh successfully in the default
configuration minus MBEDTLS_PEM_PARSE_C minus MBEDTLS_FS_IO.
2019-05-30 10:58:07 +01:00
Hanno Becker f8b0b15c90 Rename server1.der to server1.crt.der 2019-05-30 10:27:49 +01:00
Hanno Becker 389ee9b40b Add DER encoded files to git tree 2019-05-30 10:27:14 +01:00
Hanno Becker 5895a2db7b Add build instructions to generate DER versions of CRTs and keys 2019-05-30 10:27:14 +01:00
Gilles Peskine 39d7c58db5 list-symbols.sh: if the build fails, print the build transcript
If "make clean lib" fails in list-symbols.sh, print the transcript
from running make.
2019-05-22 19:07:36 +02:00
Gilles Peskine 902a1f3f7f Document "check-names.sh -v" 2019-05-22 19:07:36 +02:00
Gilles Peskine 473f2d4ec2 all.sh: invoke check-names.sh in print-trace-on-exit mode 2019-05-15 17:55:06 +02:00
Gilles Peskine 5e525fb6e5 Print a command trace if the check-names.sh exits unexpectedly
We've observed that sometimes check-names.sh exits unexpectedly with
status 2 and no error message. The failure is not reproducible. This
commits makes the script print a trace if it exits unexpectedly.
2019-05-15 17:40:58 +02:00