Commit graph

69 commits

Author SHA1 Message Date
Steven Cooreman 77e09b697f Don't turn on NO_FALLBACK for full build since it removes functionality
Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
2021-01-22 09:43:27 +01:00
Gilles Peskine f08b3f8624 Autonomous random driver: create configuration option
Create a configuration option for autonomous random drivers, i.e. PSA
crypto drivers that provide a random generator, that have their own
entropy source and do not support injecting entropy from another
source.

This commit only creates the configuration option. Subsequent commits
will add the implementation and tests.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-11-23 16:28:09 +01:00
Ronald Cron c3623dbc76 State PSA_CRYPTO_KEY_ID_ENCODES_OWNER and USE_PSA_CRYPTO incompatibility
Code under MBEDTLS_USE_PSA_CRYPTO define is PSA client
code intended to use key identifiers of type psa_key_id_t.
Thus the MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
configuration option is incompatible with
MBEDTLS_USE_PSA_CRYPTO.

State this in config.h and check_config.h.

As a consequence:
. remove MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER from
  the full configuration, as MBEDTLS_USE_PSA_CRYPTO is
  part of it.

. add a new component in all.sh to keep testing the
  library when MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
  is set.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
John Durkop dd544e1463 Fixed comments and test message output for new PSA tests
Provided a clearer comment for the description for ignoring
MBEDTLS_PSA_CRYPTO_CONFIG for full build setting.

Updated message output for test_psa_crypto_config_basic and
test_psa_want_ecdsa_disabled_software so it is more clear and
concise in what the test is doing. Removed inclusion of the
MBEDTLS_PSA_ACCEL_ALG_ECDSA since it should not have been used
for that particular tests.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-10-12 21:47:19 -07:00
John Durkop 714e3a1318 Minor cleanup to fix errors with some unit tests
With the new feature MBEDTLS_PSA_CRYPTO_CONFIG, needed to
add support that when the feature is disabled, if there
are defines like MBEDTLS_ECDSA_C defined, then the PSA_WANT_
equivalent define is also enabled. This ensures the guards in
the library psa_crypto will work properly.

Also fixed an error return code in the driver wrapper for cipher
encrypt setup so it will properly pass unit tests.

Ensured config.py full works properly with the new
MBEDTLS_PSA_CRYPTO_CONFIG, it should not be set when the full
option is used.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
2020-09-29 22:07:04 -07:00
Ronald Cron cb54610e97 Set MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER in baremetal configuration
No obvious reason to not enable owner identifier encoding
in baremetal as multi-client support is expected to be needed
for some embedded platforms. Thus enable it.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-15 08:50:20 +02:00
Ronald Cron 2647b68dde Set MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER in full configuration
Enable key identifiers encoding owner identifier in
the full configuration.

With this change the unit tests on the full
configuration are failing. The following commit do
the necessary changes to the PSA code and test code
for the tests to pass with this configuration
option enabled.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Ronald Cron 71016a9ea7 psa: Rename psa_key_file_id_t to mbedtls_svc_key_id_t
With PSA crypto v1.0.0, a volatile key identifier may
contain a owner identifier but no file is associated
to it. Thus rename the type psa_key_file_id_t to
mbedtls_svc_key_id_t to avoid a direct link with a
file when a key identifier involves an owner
identifier.

The new type name is prefixed by mbedtls to highlight
that the type is specific to Mbed TLS implementation
and not defined in the PSA Cryptography API
specification.

The svc in the type name stands for service as this
is the key identifier type from the point of view of
the service providing the Cryptography services.
The service can be completely provided by the present
library or partially in case of a multi-client service.

As a consequence rename as well:
. MBEDTLS_PSA_CRYPTO_KEY_FILE_ID_ENCODES_OWNER to
  MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER
. PSA_KEY_ID_INIT to MBEDTLS_SVC_KEY_ID_INIT
. PSA_KEY_FILE_GET_KEY_ID to MBEDTLS_SVC_KEY_ID_GET_KEY_ID
. psa_key_file_id_make to mbedtls_svc_key_id_make

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-09-02 14:27:07 +02:00
Janos Follath d4ac4e037b
Merge pull request #736 from mpg/cf-varpos-copy-dev-restricted
Constant-flow copy of HMAC from variable position
2020-08-25 14:35:55 +01:00
Dan Handley abccfc1684 Merge development into development-restricted
* development:
  Update copyright notices to use Linux Foundation guidance
  Undef ASSERT before defining it to ensure that no previous definition has sneaked in through included files.
  Add ChangeLog entry for X.509 CN-type vulnerability
  Improve documentation of cn in x509_crt_verify()
  Fix comparison between different name types
  Add test: DNS names should not match IP addresses
  Remove obsolete buildbot reference in compat.sh
  Fix misuse of printf in shell script
  Fix added proxy command when IPv6 is used
  Simplify test syntax
  Fix logic error in setting client port
  ssl-opt.sh: include test name in log files
  ssl-opt.sh: remove old buildbot-specific condition
  ssl-opt.sh: add proxy to all DTLS tests

Signed-off-by: Dan Handley <dan.handley@arm.com>
2020-08-20 11:07:12 +01:00
Manuel Pégourié-Gonnard 73afa37507 Add option to test constant-flow with valgrind
Currently the new component in all.sh fails because
mbedtls_ssl_cf_memcpy_offset() is not actually constant flow - this is on
purpose to be able to verify that the new test works.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-08-20 10:22:41 +02:00
Bence Szépkúti 1e14827beb Update copyright notices to use Linux Foundation guidance
As a result, the copyright of contributors other than Arm is now
acknowledged, and the years of publishing are no longer tracked in the
source files.

Also remove the now-redundant lines declaring that the files are part of
MbedTLS.

This commit was generated using the following script:

# ========================
#!/bin/sh

# Find files
find '(' -path './.git' -o -path './3rdparty' ')' -prune -o -type f -print | xargs sed -bi '

# Replace copyright attribution line
s/Copyright.*Arm.*/Copyright The Mbed TLS Contributors/I

# Remove redundant declaration and the preceding line
$!N
/This file is part of Mbed TLS/Id
P
D
'
# ========================

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-08-19 10:35:41 +02:00
Manuel Pégourié-Gonnard 6240defd17 Add MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN
This option allows to test the constant-flow nature of selected code, using
MemSan and the fundamental observation behind ctgrind that the set of
operations allowed on undefined memory by dynamic analysers is the same as the
set of operations allowed on secret data to avoid leaking it to a local
attacker via side channels, namely, any operation except branching and
dereferencing.

(This isn't the full story, as on some CPUs some instructions have variable
execution depending on the inputs, most notably division and on some cores
multiplication. However, testing that no branch or memory access depends on
secret data is already a good start.)

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-07-15 12:26:22 +02:00
Manuel Pégourié-Gonnard 1a3f9edc08 Add config.h option MBEDTLS_ECP_NO_INTERNAL_RNG
No effect so far, except on dependency checking, as the feature it's meant to
disable isn't implemented yet (so the descriptions in config.h and the
ChangeLog entry are anticipation for now).

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-06-08 09:09:20 +02:00
Gilles Peskine d9f694960f
Merge pull request #3190 from gilles-peskine-arm/config-full-clarify-development
Clarify that the full config enables everything that can be tested together
2020-05-04 12:29:09 +02:00
Gilles Peskine 30de2e84ef Make no_deprecated naming more consistent
Use "no_deprecated" both in the name of the configuration and in the
name of all.sh components, rather than a mixture of "no_deprecated"
and "non_deprecated".

Make all.sh component names more consistent.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 21:39:22 +02:00
Gilles Peskine c34faba8fc List MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT in is_seamless_alt
Group all the logic about _ALT symbols in one place, even the lone
exception.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:48:12 +02:00
Gilles Peskine 98f8f95208 Minor improvements to the description of full and baremetal
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:48:12 +02:00
Gilles Peskine 659db00517 Clarify that EXCLUDE_FROM_FULL has exceptions from is_seamless_alt
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:48:12 +02:00
Gilles Peskine c9d0433ece Improve the description of EXCLUDED_FROM_FULL
Every boolean (defined/undefined) symbol is a "variant toggle" in some
sense, even enabling a module with MBEDTLS_xxx_C. What matters is
whether the symbol influences some other part of the system in such a
way that we need to run tests separately with and without it being
defined.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:48:12 +02:00
Gilles Peskine 3a584aecca Enable SSLv3 in the full config
It's deprecated, but not otherwise counter-indicated for the full
config: it doesn't conflict with anything and enabling it doesn't make
testing harder (especially since it defaults off in compat.sh).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:39:36 +02:00
Gilles Peskine be1d609c19 New config: full_non_deprecated
Enable everything that can be tested together and isn't deprecated.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:39:36 +02:00
Gilles Peskine 90581ee629 Turn off DEPRECATED_WARNING in full and baremetal
MBEDTLS_DEPRECATED_REMOVED is turned off in full since we don't want
to turn off deprecated features. Also turn off
MBEDTLS_DEPRECATED_WARNING since we wouldn't want expected warnings:
we're aware that we're enabling deprecated modules.

Since MBEDTLS_DEPRECATED_WARNING is excluded from full, it doesn't
need to be excluded from baremetal explicitly.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:39:36 +02:00
Gilles Peskine dc6d838a73 Enable MBEDTLS_PSA_CRYPTO_SE_C in config full
It started out as be experimental, but it is now robust enough not to
break the rest, so there's no reason to leave it out.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-20 15:39:32 +02:00
Gilles Peskine 6710e15921 Enable X509_ALLOW_EXTENSIONS_NON_V3 in config full and fix tests
Enable MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 in the full config. There's
no reason to keep it out. We weren't testing it at all on the CI.

Add a missing dependency on !MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 to
some test cases that either were testing that v3 extensions are only
accepted in v3 certificates, or where parsing returns a different
error when MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 is enabled.

Add a few positive and negative test cases with
MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 enabled.

Fix one test case with MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3 where the
intended output of mbedtls_x509_crt_info had changed in
890819a597 but the test case was missed
because it was never executed.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-14 21:32:53 +02:00
Gilles Peskine 32e889dfc3 Document and fix the MBEDTLS_xxx_ALT logic for the full config
The intended logic around MBEDTLS_xxx_ALT is to exclude them from full
because they require the alternative implementation of one or more
library functions, except that MBEDTLS_PLATFORM_xxx_ALT are different:
they're alternative implementations of a platform function and they
have a built-in default, so they should be included in full. Document
this.

Fix a bug whereby MBEDTLS_PLATFORM_xxx_ALT didn't catch symbols where
xxx contains an underscore. As a consequence,
MBEDTLS_PLATFORM_GMTIME_R_ALT and MBEDTLS_PLATFORM_NV_SEED_ALT are now
enabled in the full config. Explicitly exclude
MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT because it behaves like the
non-platform ones, requiring an extra build-time dependency.
Explicitly exclude MBEDTLS_PLATFORM_NV_SEED_ALT from baremetal
because it requires MBEDTLS_ENTROPY_NV_SEED, and likewise explicitly
unset it from builds that unset MBEDTLS_ENTROPY_NV_SEED.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-14 21:23:48 +02:00
Gilles Peskine cfffc28a80 Document the full and baremetal configurations
For each excluded symbol, explain why it's excluded.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-14 12:16:30 +02:00
Gilles Peskine bbaa2b784a Move long lists out of functions
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-12 14:12:59 +02:00
Gilles Peskine e22a4dacf7 Explicit return value from main
Rather than sometimes returning an integer, sometimes a boolean and
sometimes implicitly returning None, always return 0 for success and 1
for failure.

No behavior change for the program as a whole, since the None/True/False
values were implicitly converted to the desired numerical value.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-03-24 19:36:17 +01:00
Gilles Peskine ce674a90c5 Clearer code to search for config.h
Don't use a function argument as a for loop variable. It worked (mostly) but
Pylint frowns on it (redefined-argument-from-local) and I think Pylint has a
point.

If the configuration file is not found, raise an exception mentioning the
search path rather than just its last element.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-03-24 19:25:34 +01:00
Gilles Peskine b99bd39b4e Merge mbed-crypto into mbedtls: the merge commit
Merge `unremove-non-crypto` into `mbedtls/development`. The branch
`unremove-non-crypto` was obtained by starting from `mbed-crypto/development`,
then reverting many commits that removed X.509 and TLS functionality when Mbed
Crypto forked from Mbed TLS (the “unremoval”), then make a few tweaks to
facilitate the merge.

The unremoval step restored old versions of some tls files. If a file doesn't
exist in mbed-crypto, check out the mbedtls version, regardless of what
happened during the unremoval of tls files in the crypto tree. Also
unconditionally take the mbedtls version of a few files where the
modifications are completely project-specific and are not relevant in
mbed-crypto:

* `.github/issue_template.md`: completely different. We may want to reconcile
  them independently as a follow-up.
* `.travis.yml`: would only be reverted to an earlier tls version.
* `README.md`: completely different. We may want to reconcile them
  independently as a follow-up.
* `doxygen/input/doc_mainpage.h`: the changes in crypto were minimal and not
  relevant except as a stopgap as mbed-crypto did not have its own product
  versioning in the Doxygen documentation.
* `tests/.jenkins/Jenkinsfile`: completely different.
* `tests/data_files/Makefile`: there were no changes in mbed-crypto,
  but the unremoval step restored an old version.

Shell script for everything to do after the merge apart from the conflict
resolution:
```
tls_files=($(comm -23 <(git ls-tree -r --name-only HEAD) <(git ls-tree -r --name-only $(git merge-base upstream-crypto/development MERGE_HEAD))))
tls_files+=($tls_files .github/issue_template.md .travis.yml README.md doxygen/input/doc_mainpage.h tests/.jenkins/Jenkinsfile tests/data_files/Makefile)
git checkout --theirs HEAD -- $tls_files
git add -- $tls_files
```

Resolve the remaining conflicts:

* `library/CMakeLists.txt`:
    * Keep the TLS definition of `src_crypto`
    * `USE_SHARED_MBEDTLS_LIBRARY`: keep all three libraries, with both
      `include` and `crypto/include` in `target_include_directories`, all with
      version `2.21.0`.
* `programs/Makefile`:
    * Reconcile the APPS lists (add/add from a differently-formatted common
      ancestor): insert the `psa/*` from crypto into the tls list.
    * Keep the `fuzz` target defined only in tls version.
    * Keep the recipe (only in tls version) cleaning `ssl_pthread_server`
      stuff for the `clean` target.
* `scripts/config.py`:
    * `include_in_full`: add/add conflict. Keep both.
* `tests/scripts/all.sh`:
    * `component_test_no_use_psa_crypto_full_cmake_asan`: partially old
      version in crypto. Take the tls version.
    * `component_test_malloc_0_null` and more: take
      `component_test_malloc_0_null` from crypto (with `config.py` rather than
      `config.pl`, and with `$ASAN_FLAGS` rather than an explicit list), but
      add the call to `ssl-opt.sh` from tls. Take the other components from
      crypto.

With this commit, building and running the unit tests with both `make ` and
`cmake` work in the default configuration on Linux. Other platforms, build
systems and configurations are likely not to work, and there is some
regression in test coverage.

There is some loss of functionality because the unremoval step restored older
versions of tls content. This commit contains the latest tls version of
tls-only files, but some changes from the tls side in files that existed on
both sides have regressed. Most problematic changes are hunks that remove some
tls-specific feature and contain either a C preprocessor symbol identifying a
tls-specific module or option, or the name of a tls-specific file. Hunks
that remove a tls-specific preprocessor symbol can be identified with the
regular expression `^-.*MBEDTLS_(ERR_)?(PKCS11|X509|NET|SSL)_`.

Subsequent commits will revert a few parts of the patch from this merge commit
in order to restore the tls functionality that it removes, ensure that the
test coverage includes what was covered in either branch, and fix test
failures.
2020-03-23 17:54:46 +01:00
Gilles Peskine 4e1174967a Revert "config: Remove TLS and NET options"
This reverts commit 1c66e48670.

Conflicts:
* include/mbedtls/check_config.h:
    * MBEDTLS_SSL_PROTO_SSL3: there has been an addition (of
      MBEDTLS_SHA512_NO_SHA384) at the place where it was removed. Re-add it
      after (alphabetical order).
    * MBEDTLS_ENABLE_WEAK_CIPHERSUITES: there has been an addition (of
      MBEDTLS_CTR_DRBG_USE_128_BIT_KEY) at the place where it was removed.
      Re-add it after (alphabetical order).
    * MBEDTLS_SSL_ALL_ALERT_MESSAGES: there has been an addition (of
      MBEDTLS_SHA512_SMALLER) at the place where it was removed. Re-add it
      after (alphabetical order).
* include/mbedtls/config.h:
    * MBEDTLS_ENABLE_WEAK_CIPHERSUITES: there has been an addition (of
      MBEDTLS_CTR_DRBG_USE_128_BIT_KEY) at the place where it was removed.
      Re-add it after (alphabetical order).
    * MBEDTLS_SSL_ALL_ALERT_MESSAGES: there has been an addition (of
      MBEDTLS_SHA512_SMALLER) at the place where it was removed. Re-add it
      after (alphabetical order).
* library/version_features.c: re-generate by running
  scripts/generate_features.pl.
* programs/test/query_config.c: re-generate by running
  scripts/generate_query_config.pl.
* scripts/config.pl: this file has been replaced by config.py. Port
  the reversed changes to config.py:
    * Revert removing three symbols from the list of symbols to
      exclude from full.
    * Revert removing one symbol (MBEDTLS_NET_C) from the list of symbols
      to exclude from baremetal.
* scripts/footprint.sh:
    * Re-add the line to unset MBEDTLS_NET_C, but with config.py instead of
      config.pl.
* tests/scripts/all.sh:
    * component_test_no_platform: re-add the line to unset MBEDTLS_NET_C, but
      with config.py instead of config.pl.
    * component_build_arm_none_eabi_gcc,
    component_build_arm_none_eabi_gcc_no_udbl_division,
    component_build_arm_none_eabi_gcc_no_64bit_multiplication,
    component_build_armcc: these components now use the baremetal
    configuration, so they do not need to turn off MBEDTLS_NET_C explicitly.
2020-03-19 13:55:04 +01:00
Gilles Peskine 252e391cca Revert "config: Remove X.509 options"
This reverts commit bb1f701212.

* include/mbedtls/check_config.h:
    * MBEDTLS_X509_RSASSA_PSS_SUPPORT: there has been an addition (of
      MBEDTLS_SHA512_NO_SHA384) at the place where it was removed.
      Re-add it before MBEDTLS_SHA512_NO_SHA384 to keep it grouped
      with MBEDTLS_RSA_C.

Conflicts:
* scripts/config.pl: this file has been replaced by config.py. Port
  the reversed changes to config.py:
    * Revert removing three symbols from the list of symbols to
      exclude from full.
2020-03-19 13:53:18 +01:00
Gilles Peskine 5da20cc569
Merge pull request #3023 from gilles-peskine-arm/config-crypto
Add crypto-only preset configurations
2020-02-05 11:17:56 +01:00
Gilles Peskine 31987c6b88 Add config presets with only crypto
Add config presets with only the crypto parts of the default
configuration, of "full" and of "baremetal".
2020-01-31 15:14:18 +01:00
Manuel Pégourié-Gonnard 2b9ebce4e1 Remove deprecated modules from config.py full 2020-01-30 10:16:15 +01:00
Manuel Pégourié-Gonnard ad6cb11461 Declare new config.h option MBEDTLS_SHA512_NO_SHA384 2020-01-06 11:40:23 +01:00
Gilles Peskine 80a607171a config.pl full: exclude MBEDTLS_ENTROPY_FORCE_SHA256
This is a variant toggle, not an extra feature, so it should be tested
separately.

We test most of the effect of MBEDTLS_ENTROPY_FORCE_SHA256 (namely,
using SHA-256 in the entropy module) when we test the library with the
SHA512 module disabled (which we do at least via depends-hashes.pl).
This commit removes testing of the MBEDTLS_ENTROPY_FORCE_SHA256 option
itself, which should be added separately.
2019-11-21 13:52:09 +01:00
Gilles Peskine 24600e8290 Disable memory_buffer_alloc in the full config
Enabling MBEDTLS_MEMORY_BUFFER_ALLOC_C module together with
MBEDTLS_PLATFORM_MEMORY causes the library to use its own malloc
replacement. This makes memory management analyzers such as ASan
largely ineffective. We now test MBEDTLS_MEMORY_BUFFER_ALLOC_C
separately. Disable it in the "full" config.

This mirrors a change that was made in Mbed TLS on config.pl and had
not been ported to Mbed Crypto yet.

With this commit, config.py is aligned in Mbed Crypto and Mbed TLS.
2019-11-15 11:53:42 +01:00
Gilles Peskine 261742bd59 Fix config.py output when a symbol has acquired or lost a value
Normally a valueless symbol remains valueless and a symbol with a
value keeps having one. But just in case a symbol does get changed
from valueless to having a value, make sure there's a space between
the symbol and the value. And if a symbol gets changed from having a
value to valueless, strip trailing whitespace.

Add corresponding tests.

Also fix the case of a valueless symbol added with the set method,
which would have resulted in attempting to use None as a string. This
only happened with the Python API, not with the command line API.
2019-11-13 14:33:34 +00:00
Gilles Peskine 7f04013099 Documentation improvements 2019-11-13 14:33:34 +00:00
Gilles Peskine 2552bc73d4 Fix "#define ... not found" error when using the default file name
Also make that error message end with a newline.
2019-11-13 14:33:34 +00:00
Gilles Peskine 63cdb2855f Fix "--force set" without a value sneaking a None in 2019-11-13 14:33:34 +00:00
Gilles Peskine a52f97d5a5 Fix --force requiring an argument 2019-11-13 14:33:34 +00:00
Gilles Peskine b6fa7970a6 Fix Config.unset() making the name known 2019-11-13 14:33:34 +00:00
Gilles Peskine 812f185bc8 Also search config.h near the script
By default, this script looks for include/mbedtls/config.h relative to
the current directory. This allows running config.py from outside the
build tree.

To support out-of-tree builds where config.h and config.py are in the
source tree and the current directory is in the build tree, also try
DIRECTORY_CONTAINING_SCRIPT/../include/mbedtls/config.h, and the
equivalent with symbolic links traversed.
2019-11-13 14:33:34 +00:00
Gilles Peskine 5d650c86b4 Fix 'config.py set' without --force
The `set` command can act on any known symbol.
2019-11-13 14:33:34 +00:00
Gilles Peskine a26ea87dde Fix encoding errors
config.h is encoded in UTF-8.
2019-11-13 14:33:34 +00:00
Gilles Peskine a47ab22852 Print help when invoked with no arguments 2019-11-13 14:33:34 +00:00
Gilles Peskine 4efaeba48b Support writing to a different file 2019-11-13 14:32:04 +00:00