These headers were necessary for compatibility with Visual Studio 2010,
and interfere with the system headers on Visual Studio 2013+, eg. when
building Mbed TLS using the .sln file shipped with the project.
Move the still-required definition of "inline" to callconv.h, where the
definition for GCC also lives.
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Visual Studio 2013 (_MSC_VER == 1800) doesn't support %zu - only use it
on 2015 and above (_MSC_VER >= 1900).
%ldd works on Visual Studio 2013, but this patch keeps the two macro
definitions together, for simplicity's sake.
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
The Windows CRT treats any invalid format specifiers passed to the CRT
as fatal assertion failures. Disable thie behaviour temporarily while
testing if the format specifiers we use are supported.
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
Move the suite's global dependency on MBEDTLS_SSL_TLS_C to the
individual test cases.
Add an preprocesor guard around string_debug to prevent warning about unused
functions.
Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
A handshake record may contain multiple handshake messages, or multiple
fragments (there can be the final fragment of a pending message, then zero
or more whole messages, and an initial fragment of an incomplete message).
This was previously untested, but supported, so don't break it.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Reassemble handshake fragments incrementally instead of all at the end. That
is, every time we receive a non-initial handshake fragment, append it to the
initial fragment. Since we only have to deal with at most two handshake
fragments at the same time, this simplifies the code (no re-parsing of a
record) and is a little more memory-efficient (no need to store one record
header per record).
This commit also fixes a bug. The previous code did not calculate offsets
correctly when records use an explicit IV, which is the case in TLS 1.2 with
CBC (encrypt-then-MAC or not), GCM and CCM encryption (i.e. all but null and
ChachaPoly). This led to the wrong data when an encrypted handshake message
was fragmented (Finished or renegotiation). The new code handles this
correctly.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
Minor refactoring of the initial checks and preparation when receiving the
first fragment. Use `ssl->in_hsfraglen` to determine whether there is a
pending handshake fragment, for consistency, and possibly for more
robustness in case handshake fragments are mixed with non-handshake
records (although this is not currently supported anyway).
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
In preparation for reworking mbedtls_ssl_prepare_handshake_record(),
tweak the "handshake fragment:" log message.
This changes what information is displayed when a record contains data
beyond the expected end of the handshake message. This case is currently
untested and its handling will change in a subsequent commit.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
In preparation for reworking mbedtls_ssl_prepare_handshake_record(), tweak
the "waiting for more handshake fragments" log message in
ssl_consume_current_message(), and add a similar one in
mbedtls_ssl_prepare_handshake_record(). Assert both.
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
