Asan poisons memory with an 8-byte granularity. We want to make sure that
the whole specified region is poisoned (our typical use case is a
heap-allocated object, and we want to poison the whole object, and we don't
care about the bytes after the end of the object and up to the beginning of
the next object). So align the start and end of the region to (un)poison to
an 8-byte boundary.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
While an area of memory is poisoned, reading or writing from it triggers a
sanitizer violation.
Implemented for ASan.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Since the code compiles with MBEDTLS_THREADING_C, not just with
MBEDTLS_THREADING_PTHREAD, use MBEDTLS_THREADING_C as the guard. The runtime
behavior is only as desired under certain conditions that imply
MBEDTLS_THREADING_PTHREAD, but that's fine: no metatest is expected to pass
in all scenarios, only under specific build- and run-time conditions.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This program can be used to validate that things that should be detected as
test failures are indeed caught, either by setting the test result to
MBEDTLS_TEST_RESULT_FAILED or by aborting the program.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
mbedtls_ssl_session_save() always outputs the output length, even on error.
Here, we're only calling it to get the needed output length, so it's ok to
ignore the return value. Convey this to linters.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
The official spelling of the trade mark changed from all-lowercase "mbed"
to normal proper noun capitalization "Mbed" a few years ago. We've been
using the new spelling in new text but still have the old spelling in a
lot of text. This commit updates most occurrences of "mbed TLS":
```
sed -i -e 's/mbed TLS/Mbed TLS/g' $(git ls-files ':!ChangeLog' ':!tests/data_files/**' ':!tests/suites/*.data' ':!programs/x509/*' ':!configs/tfm*')
```
Justification for the omissions:
* `ChangeLog`: historical text.
* `test/data_files/**`, `tests/suites/*.data`, `programs/x509/*`: many
occurrences are significant names in certificates and such. Changing
the spelling would invalidate many signatures and tests.
* `configs/tfm*`: this is an imported file. We'll follow the upstream
updates.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Every now and then, I see of these programs failing with a super-long
usage message that gives no clue as to what went wrong. (Recently it
happened with a test case in ssl-opt.sh with a fairly long command line
that was entirely correct, except some options were not valid in this
config - the test should have been skipped but wasn't due to some other
bug. It took me longer to figure out than it should have, and could have
if the program had simply reported which param was not recognized.)
Also, have an explicit "help" command, separate "help_ciphersuites", and
have default usage message that's not multiple screens long.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
All options have reasonable default so the programs don't need arguments
to do something useful.
It is widely accepted for programs that can work without arguments need
not insist on the user passing arguments, see 'ls', 'wc', 'sort', 'more'
and any number of POSIX utilities that all work without arguments.
It is also the historical behaviour of those programs, and something
relied one by at least a few team members.
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
Running clang-16 on mbedtls reports warnings of type "-Wstrict-prototypes".
This patch fixes these warnings by adding void to functions with no
arguments. The generate_test_code.py is modified to insert void into test
functions with no arguments in *.function files.
Signed-off-by: Gowtham Suresh Kumar <gowtham.sureshkumar@arm.com>
Demo scripts should declare their build-time dependencies, to make
them more user-friendly. If a dependency is not met, users should see
an explicit message rather than an incomprehensible error.
Don't rely on the dependencies of individual programs because some
demo scripts use multiple programs and because some scripts might have
additional requirements.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
