Commit graph

4942 commits

Author SHA1 Message Date
Andrzej Kurek
5902cd64e2 Remove MBEDTLS_SSL_EXPORT_KEYS, making it always on
This option only gated an ability to set a callback,
but was deemed unnecessary as it was yet another define to
remember when writing tests, or test configurations. Fixes #4653.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2021-09-29 10:15:42 -04:00
Przemyslaw Stekiel
80c6a8e1a6 Add PSA support for MBEDTLS_CIPHER_AES_128_ECB
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
2021-09-29 12:39:21 +02:00
Gilles Peskine
bfe3d87f24
Merge pull request #4842 from gilles-peskine-arm/public_fields-3.0-info
Make some structure fields public: key info, ASN.1 and X.509 parsing, socket fd
2021-09-29 12:37:09 +02:00
Jerry Yu
d96a5c2d86 Fix wrong usage of counter len macro
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-29 17:46:51 +08:00
Manuel Pégourié-Gonnard
1869377146
Merge pull request #4942 from yuhaoth/pr/add-tls13-client-dummy-state-handlers
add tls13 client dummy state handlers and improve dispatch test
2021-09-29 10:45:16 +02:00
Jerry Yu
d9a94fe3d0 Add counter length macro
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-28 20:10:26 +08:00
Ronald Cron
45cb82fac4
Merge pull request #4918 from yuhaoth/pr/add-send-alert-message-macro
Add send alert message macro
2021-09-28 13:34:55 +02:00
Gilles Peskine
5b8618b44c fixup: Make the fields of mbedtls_ecp_curve_info public
Remove more places where MBEDTLS_PRIVATE() was used on grp_id, which is now
public.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-28 12:34:53 +02:00
Gilles Peskine
409fbbe4a2 Minor documentation fix
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 19:16:28 +02:00
Gilles Peskine
9a7d4c2734 New configuration option MBEDTLS_CHECK_RETURN_WARNING
MBEDTLS_CHECK_RETURN_TYPICAL defaults off, but is enabled if
MBEDTLS_CHECK_RETURN_WARNING is enabled at compile time.
(MBEDTLS_CHECK_RETURN_CRITICAL is always enabled.)

The default is off so that a plausible program that builds with one version
of Mbed TLS in the default configuration will still build under the next
version.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 19:15:56 +02:00
Gilles Peskine
a33e6935bc Use reserved identifier for warn_unused_result
This is normally equivalent, but works even if some other header defines a
macro called warn_unused_result.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 19:15:56 +02:00
Gilles Peskine
913fc5fff3 Better default for MBEDTLS_CHECK_RETURN in config.h
An empty expansion is possible, but as documented its effect is to disable
the feature, so that isn't a good example. Instead, use the GCC
implementation as the default: it's plausible that it could work even on
compilers that don't advertise themselves as sufficiently GCC-like to define
__GNUC__, and if not it gives users a concrete idea of what the macro is
supposed to do.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 19:15:56 +02:00
Gilles Peskine
3f106f762d Move MBEDTLS_CHECK_RETURN to the correct section
This is not a boolean macro: it's useful for what it expands to.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 19:15:56 +02:00
Gilles Peskine
e41803af9c Change DES and AES functions to MBEDTLS_CHECK_RETURN_TYPICAL
For all of these functions, the only possible failures are a hardware
accelerator (not possible unless using an ALT implementation), an internal
error or runtime corruption.

Exception: the self-tests, which serve little purpose if their status isn't
tested.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 19:15:56 +02:00
Gilles Peskine
463adf4536 Define indirection macros MBEDTLS_CHECK_RETURN_xxx
Define macros MBEDTLS_CHECK_RETURN_CRITICAL, MBEDTLS_CHECK_RETURN_TYPICAL
and MBEDTLS_CHECK_RETURN_OPTIONAL so that we can indicate on a
function-by-function basis whether checking the function's return value is
almost always necessary (CRITICAL), typically necessary in portable
applications but unnecessary in some reasonable cases (TYPICAL), or
typically unnecessary (OPTIONAL).

Update the documentation of MBEDTLS_CHECK_RETURN accordingly. This is split
between the user documentation (Doxygen, in config.h) and the internal
documentation (non-Doxygen, in platform_util.h, of minor importance since
the macro isn't meant to be used directly).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 19:15:56 +02:00
Mateusz Starzyk
2a25804fd4 Add MBEDTLS_CHECK_RETURN description to mbedtls_config.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-09-27 19:15:56 +02:00
Mateusz Starzyk
e35f8f6a77 Move MBEDTLS_CHECK_RETURN to platform_util.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-09-27 19:15:56 +02:00
Gilles Peskine
7820a574f1 Catch failures of AES or DES operations
Declare all AES and DES functions that return int as needing to have
their result checked, and do check the result in our code.

A DES or AES block operation can fail in alternative implementations of
mbedtls_internal_aes_encrypt() (under MBEDTLS_AES_ENCRYPT_ALT),
mbedtls_internal_aes_decrypt() (under MBEDTLS_AES_DECRYPT_ALT),
mbedtls_des_crypt_ecb() (under MBEDTLS_DES_CRYPT_ECB_ALT),
mbedtls_des3_crypt_ecb() (under MBEDTLS_DES3_CRYPT_ECB_ALT).
A failure can happen if the accelerator peripheral is in a bad state.
Several block modes were not catching the error.

This commit does the following code changes, grouped together to avoid
having an intermediate commit where the build fails:

* Add MBEDTLS_CHECK_RETURN to all functions returning int in aes.h and des.h.
* Fix all places where this causes a GCC warning, indicating that our code
  was not properly checking the result of an AES operation:
    * In library code: on failure, goto exit and return ret.
    * In pkey programs: goto exit.
    * In the benchmark program: exit (not ideal since there's no error
      message, but it's what the code currently does for failures).
    * In test code: TEST_ASSERT.
* Changelog entry.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 16:22:08 +02:00
Gilles Peskine
4b627af36c New macro MBEDTLS_CHECK_RETURN
Put this macro before a function declaration to indicate that its result
must be checked. This commit supports GCC-like compilers and MSVC >=2012.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-27 16:22:08 +02:00
Gilles Peskine
b19be6b5f3
Merge pull request #1638 from dgreen-arm/check-names-rewrite
Rewrite check-names.sh in python
2021-09-27 12:28:53 +02:00
Jerry Yu
957f0fa1f7 Add length macro for in_ctr
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-27 16:34:58 +08:00
Jerry Yu
394ece6cdd Add function for set pending alert flag
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-27 16:25:38 +08:00
Jerry Yu
33cedca8aa fix comments issue
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-27 16:25:38 +08:00
Jerry Yu
e7047819ee add pend fatal alert
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-27 16:25:38 +08:00
Jerry Yu
6c983524a8 Move msvc compatible fix to common.h
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-27 16:25:05 +08:00
Jerry Yu
687101b2e6 tls13: add dummy state machine handler
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-27 16:25:05 +08:00
Paul Elliott
c7e7fe5c05 Add missing MBEDTLS_PRIVATE
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-09-27 09:23:40 +01:00
Gilles Peskine
bd4960c8c8
Merge pull request #4961 from mpg/doc-use-psa-crypto
Document effects of  `MBEDTLS_USE_PSA_CRYPTO`
2021-09-24 20:42:30 +02:00
Yuto Takano
c3a6f63c99 Merge updates from upstream development branch into check-names-rewrite
Signed-off-by: Yuto Takano <yuto.takano@arm.com>
2021-09-24 18:02:56 +01:00
Paul Elliott
5977bc9e39 Add MBEDTLS_PRIVATE to new structs
Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-09-24 11:20:04 +01:00
Paul Elliott
71b0567c87 Merge remote-tracking branch 'upstream/development' into psa-m-aead-merge
Also fiixed the following merge problems:

crypto_struct.h   : Added MBEDTLS_PRIVATE to psa_aead_operation_s
                    members (merge conflict)
psa_crypto_aead.c : Added ciphertext_length to mbedtls_gcm_finish
                    call (change of API during development)

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-09-24 11:18:13 +01:00
Ronald Cron
f2cb19f921
Merge pull request #4891 from yuhaoth/pr/enable-key-exchange-in-client-hello
TLS1.3: Client Hello : Add  extensions and test case.
2021-09-23 18:45:01 +02:00
Gilles Peskine
f0f2294f57
Merge pull request #4708 from mstarzyk-mobica/ccm_chunked
Ccm chunked - enable multipart CCM in PSA
2021-09-21 13:46:52 +02:00
Manuel Pégourié-Gonnard
200bcf77f8 Remove warning about PSA Crypto being beta
The API reached 1.0.0 some time ago, and we've caught up with the
incompatible changes already.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-09-21 12:59:26 +02:00
Manuel Pégourié-Gonnard
13b0bebf7d Add docs/use-psa-crypto.md
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2021-09-21 12:59:25 +02:00
Gilles Peskine
6c12a1e9f2 Add ARIA to the PSA API
Use the encoding from an upcoming version of the specification.

Add as much (or as little) testing as is currently present for Camellia.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-09-21 11:59:39 +02:00
Jerry Yu
e226cef124 Add NamedGroup IANA values and helper functions
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-08 09:52:15 +08:00
Jerry Yu
1bc2c1f1a3 fix various issues
fix comments, format and name conversion issues

Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-03 16:29:20 +08:00
Jerry Yu
a2cf7bd243 fix comment issues
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-03 16:29:20 +08:00
Jerry Yu
995ecd396f fix wrong iana values and comments
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-03 16:29:20 +08:00
Jerry Yu
b3317e1a01 Add extension types in rfc8446
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-03 16:29:19 +08:00
Jerry Yu
7984d9931e Add tls1.3 extension IANA values
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-03 16:29:19 +08:00
Jerry Yu
a13c7e739c add dummy client hello process
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-09-03 16:29:19 +08:00
Mateusz Starzyk
7251eda6ff Replace BAD_SEQUENCE error with BAD_INPUT
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-09-01 13:26:44 +02:00
Mateusz Starzyk
e40ae6bbed Fix typo
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-09-01 12:47:49 +02:00
Gilles Peskine
ca939959e4 Allow read-only access to lists of certificates, CRL, CRL entries
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 23:18:07 +02:00
Gilles Peskine
2e9d65f928 Note that custom info structures are not supported
This was already documented for mbedtls_md_info_t. Also document it for
mbedtls_pk_info_t (where it's fairly obvious since the structure is not
defined in a public header) and for mbedtls_cipher_info_t (where it's not
obvious since the structure is defined in a public header).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 23:08:55 +02:00
Gilles Peskine
44ffc79d29 Copyediting in comments
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 23:08:55 +02:00
Gilles Peskine
842edf474c Make many fields of X.509 structures public
The structures mbedtls_x509_time, mbedtls_x509_crl_entry, mbedtls_x509_crl,
mbedtls_x509_crt, mbedtls_x509_san_other_name,
mbedtls_x509_subject_alternative_name, mbedtls_x509_csr are designed to
expose the result of parsing X.509 data. Document many of their fields as
being publicly readable.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 22:54:27 +02:00
Gilles Peskine
b89d9c0599 Make fields of ASN.1 data structures public
The structures mbedtls_asn1_buf, mbedtls_asn1_bitstring,
mbedtls_asn1_sequence and mbedtls_asn1_named_data are designed to allow
access to data after parsing. Make their fields public.

Document that chaining fields are essentially read-only.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 22:54:27 +02:00
Gilles Peskine
b11d61e095 mbedtls_net_context: make fd public on Unix/POSIX platforms
On platforms with BSD-like sockets, it is useful for applications to have
access to the underlying file descriptor so that they can use functions like
select() and poll().

Do not promise that the field will exist on other platforms such as
Windows (where the type and name of the field are technically wrong because
Windows socket handles are actually not file descriptors).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 22:54:27 +02:00
Gilles Peskine
0be02bd823 Add accessor functions for cipher_info fields
Add functions to read the type, mode, name and key_bitlen fields from
mbedtls_cipher_info_t. These are the fields that applications are most
likely to care about.

TLS code also uses iv_size and block_size, which it might make sense to
expose, but most applications shouldn't need those, so I'm not exposing them
for now.

Call the new functions in unit tests, so they're at least smoke-tested.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 22:52:41 +02:00
Gilles Peskine
a73b577744 Make the fields of mbedtls_ecp_curve_info public
The whole point of this structure is to provide information, both for the
library's own sake and to applications.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-31 22:52:41 +02:00
Manuel Pégourié-Gonnard
e45ee40f7e
Merge pull request #4811 from hanno-arm/tls13_ciphersuite_api
Add TLS 1.3 ciphersuite and key exchange identifiers and API
2021-08-30 09:47:46 +02:00
Jerry Yu
cadebe5343 fix several format and comment issues
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-08-25 18:13:42 +08:00
Mateusz Starzyk
cbefb6ba4d Merge branch 'development' into ccm_chunked
Conflicts:
	library/ccm.c

Conflict resolved by re-applying the MBEDTLS_BYTE_0 macro.
Conflict resolved by ignoring the MBEDTLS_PUT_UINT16_BE macro
used in development branch on the 'b' buffer, because the 'b'
buffer is removed in current branch.
2021-08-24 15:14:23 +02:00
Andrey Starodubtsev
90cc33aad6 Misprint was fixed
Signed-off-by: Andrey Starodubtsev <andrey.starodubtsev@gmail.com>
2021-08-23 12:20:41 +03:00
Manuel Pégourié-Gonnard
01a78599b0
Merge pull request #4864 from hanno-arm/upstream_sig_alg_identifers
TLS 1.3 MVP: Upstream TLS 1.3 SignatureAlgorithm identifiers and configuration API
2021-08-19 09:12:59 +02:00
Jerry Yu
447a3bee17 fix wrong typo and format issues
Change-Id: I99a4c7d28c26bfcc43bc8947485d1dfafb6974dc
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-08-18 09:55:36 +08:00
Manuel Pégourié-Gonnard
684543a3a8
Merge pull request #4807 from hanno-arm/bio_recv_ret_0_eof
Document that returning 0 from the recv callback means EOF
2021-08-17 10:30:46 +02:00
Jerry Yu
7899de839c fix comments and format issues
Change-Id: I927d97f9d788389d6abb9edbda0f7c3e2f8e9b63
CustomizedGitHooks: yes
Signed-off-by: Jerry Yu <jerry.h.yu@arm.com>
2021-08-17 13:26:59 +08:00
Manuel Pégourié-Gonnard
93a3ca6caf
Merge pull request #4413 from gilles-peskine-arm/tls_ext_cid-config
Allow configuring MBEDTLS_TLS_EXT_CID at compile time
2021-08-13 10:49:50 +02:00
Gilles Peskine
7dd2f504b3 Allow configuring MBEDTLS_TLS_EXT_CID at compile time
The numerical identifier of the CID extension hasn't been settled yet
and different implementations use values from different drafts. Allow
configuring the value at compile time.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-12 10:31:01 +02:00
Hanno Becker
5d045a8b89 Stick to 'ephemeral' instead of ECDHE for TLS 1.3 key exchanges
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:31:14 +01:00
Hanno Becker
674f9480cf Fix typo: algorithmc -> algorithms
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:31:14 +01:00
Hanno Becker
d4fa9bc710 Remove outdated mentioning of version-specific ciphersuite config
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:31:14 +01:00
Hanno Becker
a2535931ac Add Doxygen documentation for TLS 1.3 key exchange macros
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:31:14 +01:00
Hanno Becker
71f1ed66c2 Add identifiers and API for configuration of TLS 1.3 key exchanges
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:28:45 +01:00
Hanno Becker
e486b2d7bb Document use of mbedtls_ssl_conf_ciphersuites() for TLS 1.3
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:28:45 +01:00
Hanno Becker
8ca26923eb Add TLS 1.3 ciphersuites
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:28:45 +01:00
Hanno Becker
e043d15d75 Turn comments of 1.3 record transforms into Doxygen documentation
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-12 06:22:52 +01:00
Hanno Becker
1cd6e0021f Add experimental API for configuration of TLS 1.3 sig algs
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-10 13:55:43 +01:00
Hanno Becker
551265f879 Add TLS 1.3 IANA signature-algorithm values
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-10 13:03:48 +01:00
Mateusz Starzyk
a42f9537b5 Improve documentation for CCM's processed variable.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 14:00:14 +02:00
Mateusz Starzyk
4f2dd8aada Fix errors returned by CCM functions.
Add new error code for calling functions in wrong order.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 14:00:14 +02:00
Mateusz Starzyk
f337850738 Use const size buffer for local output in CCM decryption.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:59:36 +02:00
Mateusz Starzyk
22f7a35ca4 Do not use output buffer for internal XOR during decryption.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:58:39 +02:00
Mateusz Starzyk
4df9ac4882 Reorganize ccm context structure.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk
663055f784 Remove UPDATE_CBC macro and working b buffer.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk
eb2ca96d69 Store set lenghts in ccm context.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk
793692cbcb Split ccm_auth function.
Move logic to ccm_starts, ccm_set_lengths, ccm_update_ad,
ccm_update and ccm_finish
Use separate variable to track context state.
Encode first block only if both mbedtls_ccm_starts() and
mbedtls_ccm_set_lengths() were called.

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Mateusz Starzyk
89d469cdb4 Move working variables to ccm context structure
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
2021-08-10 13:56:37 +02:00
Yuto Takano
7828ca2ea4 Fix typos pointed out by check_names
Signed-off-by: Yuto Takano <yuto.takano@arm.com>
2021-08-10 11:26:15 +01:00
Hanno Becker
3aa186f946 Add transforms to be used for TLS 1.3
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-10 09:24:19 +01:00
Hanno Becker
0e719ff341 Improve the documentation of legacy msg layer transforms
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-10 09:24:08 +01:00
Hanno Becker
b6bbbb174d Fix typo in documentation of ssl->transform_out
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-10 09:00:14 +01:00
Gilles Peskine
3fbc5d3cf2
Merge pull request #4815 from gilles-peskine-arm/generate_errors-multiline-3.0
Move MBEDTLS_ERR_xxx Doxygen comments before the definition
2021-08-03 13:46:21 +02:00
Gilles Peskine
cfb5d393ed
Merge pull request #4659 from spencer-burke/fixing_4222
Remove duplicated check in `check_config.h`
2021-08-03 12:53:34 +02:00
Gilles Peskine
d297157fe8 Move MBEDTLS_ERR_xxx Doxygen comments before the definition
Now that descriptions of error codes no longer have to be on the same line
for the sake of generate_errors.pl, move them to their own line before the
definition. This aligns them with what we do for other definitions, and
means that we no longer need to have very long lines containing both the C
definition and the comment.

```
perl -i -pe 's~^(#define +MBEDTLS_ERR_\w+ +-\w+) */\*[*!]<(.*)\*/~/**$2*/\n$1~' include/mbedtls/*.h
```

This commit does not change the output of generate_errors.pl.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2021-08-02 22:51:03 +02:00
Gilles Peskine
8bb9b80d18
Merge pull request #4806 from hanno-arm/ssl_session_serialization_version
Store TLS version in SSL session structure
2021-08-02 12:45:55 +02:00
Hanno Becker
57723135b3 Document temporary overlap of TLS version in SSL context and session
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-08-01 19:40:44 +01:00
Gilles Peskine
69813477b0
Merge pull request #4758 from paul-elliott-arm/fix_cipher_output_size
Fix divide by zero if macro used with wrong key type
2021-07-30 18:56:18 +02:00
Dave Rodgman
677c6c4cac
Merge pull request #4801 from hanno-arm/ssl_session_exported_private
Explicitly mark fields as private via MBEDTLS_PRIVATE(...)
2021-07-30 14:39:07 +01:00
Manuel Pégourié-Gonnard
b637150dfe
Merge pull request #4730 from TRodziewicz/finish_removing_tls_1.0_and_1.1
Remove all TLS 1.0 and 1.1 instances and add some compatibility tests
2021-07-27 09:42:53 +02:00
Hanno Becker
218dec824e Document that returning 0 from the recv callback means EOF
Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-07-23 07:24:25 +01:00
Hanno Becker
fadbdbb576 Store TLS version in SSL session structure
Instances of `mbedtls_ssl_session` represent data enabling session resumption.

With the introduction of TLS 1.3, the format of this data changes. We therefore
need TLS-version field as part of `mbedtlsl_ssl_session` which allows distinguish
1.2 and 1.3 sessions.

This commit introduces such a TLS-version field to mbedtls_ssl_session.

The change has a few ramifications:

- Session serialization/deserialization routines need to be adjusted.

  This is achieved by adding the TLS-version after the header of
  Mbed TLS version+config, and by having the subsequent structure
  of the serialized data depend on the value of this field.

  The details are described in terms of the RFC 8446 presentation language.

  The 1.2 session (de)serialization are moved into static helper functions,
  while the top-level session (de)serialization only parses the Mbed TLS
  version+config header and the TLS-version field, and dispatches according
  to the found version.

  This way, it will be easy to add support for TLS 1.3 sessions in the future.

- Tests for session serialization need to be adjusted

- Once we add support for TLS 1.3, with runtime negotiation of 1.2 vs. 1.3,
  we will need to have some logic comparing the TLS version of the proposed session
  to the negotiated TLS version. For now, however, we only support TLS 1.2,
  and no such logic is needed. Instead, we just store the TLS version in the
  session structure at the same point when we populate mbedtls_ssl_context.minor_ver.

The change introduces some overlap between `mbedtls_ssl_session.minor_ver` and
`mbedtls_ssl_context.minor_ver`, which should be studied and potentially resolved.
However, with both fields being private and explicitly marked so, this can happen
in a later change.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-07-23 06:25:48 +01:00
Gilles Peskine
3b9bea0757
Merge pull request #4750 from yutotakano/fix-reserved-identifier-clash
Replace reserved identifier clashes with suitable replacements
2021-07-22 16:20:56 +02:00
Hanno Becker
0379942744 Explicitly mark mbedtls_ssl_config.respect_cli_pref as private
This was always intended to be explicitly marked private.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-07-22 11:37:05 +01:00
Hanno Becker
95832d8872 Explicitly mark mbedtls_ssl_session.exported as private
This was an oversight during concurrent merging
in the run-up to Mbed TLS 3.0.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2021-07-22 11:37:01 +01:00
Paul Elliott
6603e2b81c Add fix to update output size macro as well.
Same issue with zero block length applies here.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-07-14 12:39:54 +01:00