Commit graph

1244 commits

Author SHA1 Message Date
Paul Elliott b744990717 Fix missed size_t printf
Code was missed due to rework moving duplicated code into a function

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-03-10 18:17:12 +00:00
Paul Elliott d48d5c6615 Fix size_t and longlong specifiers for MinGW
MinGW and older windows compilers cannot cope with %zu or %lld (there is
a workaround for MinGW, but it involves linking more code, there is no
workaround for Windows compilers prior to 2013). Attempt to work around
this by defining printf specifiers for size_t per platform for the
compilers that cannot use the C99 specifiers.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-03-10 17:00:32 +00:00
Paul Elliott 3891caf1ce Misc review requested fixes
Style fixes and cast certain defines to size_t

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-03-10 17:00:32 +00:00
Paul Elliott 9f35211774 Fixes for invalid printf format specifiers
Fixes for printf format specifiers, where they have been flagged as
invalid sizes by coverity, and new build flags to enable catching these
errors when building using CMake. Note that this patch uses %zu, which
requires C99 or later.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
2021-03-10 17:00:32 +00:00
Andrzej Kurek 069fa96cd7 Use size_t instead of uint32_t for ssl I/O buffer lengths
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2021-01-11 09:13:58 -05:00
Andrzej Kurek 4a0637981b Refactor the variable I/O buffer size feature
Reduce code duplication to simplify the feature and reduce code size.
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2021-01-11 09:12:53 -05:00
Rodrigo Dias Correa f06a6144e2 Change function casting in ssl_calc_finished_tls_sha384
`finish_sha384_t` was made more generic by using `unsigned char*`
instead of `unsigned char[48]` as the second parameter.
This change tries to make the function casting more robust against
future improvements of gcc analysis.

Signed-off-by: Rodrigo Dias Correa <rodrigo@correas.us>
2020-11-25 07:30:26 -03:00
Rodrigo Dias Correa d596ca8a1e Fix GCC warning in ssl_calc_finished_tls_sha384
This commit fixes the same warning fixed by baeedbf9, but without
wasting RAM. By casting `mbedtls_sha512_finish_ret()`, `padbuf`
could be kept 48 bytes long without triggering any warnings.

Signed-off-by: Rodrigo Dias Correa <rodrigo@correas.us>
2020-11-25 01:13:12 -03:00
Rodrigo Dias Correa eb5d014d8e Fix GCC warning in ssl_calc_finished_tls_sha384
GCC 11 generated a warning because `padbuf` was too small to be
used as an argument for `mbedtls_sha512_finish_ret`. The `output`
parameter of `mbedtls_sha512_finish_ret` has the type
`unsigned char[64]`, but `padbuf` was only 48 bytes long.

Even though `ssl_calc_finished_tls_sha384` uses only 48 bytes for
the hash output, the size of `padbuf` was increased to 64 bytes.

Signed-off-by: Rodrigo Dias Correa <rodrigo@correas.us>
2020-11-25 01:13:12 -03:00
Rodrigo Dias Correa 2c424570e2 Fix mismatched function parameters (prototype/definition)
In GCC 11, parameters declared as arrays in function prototypes
cannot be declared as pointers in the function definition. The
same is true for the other way around.

The definition of `mbedtls_aes_cmac_prf_128` was changed to match
its public prototype in `cmac.h`. The type `output` was
`unsigned char *`, now is `unsigned char [16]`.

In `ssl_tls.c`, all the `ssl_calc_verify_*` variants now use pointers
for the output `hash` parameter. The array parameters were removed
because those functions must be compatible with the function pointer
`calc_verify` (defined in `ssl_internal.h`).

Signed-off-by: Rodrigo Dias Correa <rodrigo@correas.us>
2020-11-25 01:13:12 -03:00
Rodrigo Dias Correa 2630f6720d Fix build failure on gcc-11
Function prototypes changed to use array parameters instead of
pointers.

Signed-off-by: Rodrigo Dias Correa <rodrigo@correas.us>
2020-11-25 01:13:12 -03:00
Ronald Cron cf56a0a320 psa: Move from key handle to key identifier
Move all the PSA crypto APIs using key handles
to use key identifiers but psa_key_open() and
psa_key_close(). This is done without modifying
any test as key handles and key identifiers are
now the same.

Update the library modules using PSA crypto APIs
to get rid of key handles.

Programs and unit tests are updated to not use
key handles in subsequent commits, not in this
one.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron c26f8d467a Introduce psa_key_handle_is_null inline function
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Ronald Cron 91e9515424 Introduce PSA_KEY_HANDLE_INIT macro
Signed-off-by: Ronald Cron <ronald.cron@arm.com>
2020-11-10 16:00:41 +01:00
Johan Pascal 5ef72d214f Style and typos
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal 2258a4f481 Do not return a structure, use a return parameter
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal 0dbcd1d3f0 Make API safer
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal 20c7db3a67 API modified so server side can get mki value
+ client side discards self mki if server does not support it

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal 76fdf1d60e Minor fix and improvements
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal d387aa0586 style + missing cast
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:50 +01:00
Johan Pascal aae4d22b16 Improve code readability
+micro optimization
+style

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal a455cd9a47 mbedtls_ssl_get_srtp_profile_as_string declared and defined in ssl.h
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal f6417ecf60 mki length feats in a uint16_t
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal 253d0263a6 set protection profile API gets a MBEDTLS_TLS_SRTP_UNSET terminated list
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal 43f9490a52 SRTP profiles definition use macros only
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal 4f099264b5 use_srtp extension shall not interfere in the handshake settings
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal d576fdb1d6 Style + fix bound check in write_use_srt_ext
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal 9bc97ca19d SRTP-DTLS protection profile configuration list not copied into ssl_config
+ improve test
+ minor style fix

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal 8526957cd5 Minor style modifications
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal b64eab7656 fix style
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor 65b56ef87f Change key derivation for srtp
Use the export keys functionality, to call the public API
`mbedtls_ssl_tls_prf()`, and remove the function
`mbedtls_ssl_get_dtls_srtp_key_material()`.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor 313d7b5d74 Add variable validation
1. Check allocation success.
2. Check parameter correctness in the use_srtp extension
in server and client.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor 089c9fe9fa Improve readability
Improve readability of the code:
1. move common code to `ssl_internal.h` as `static inline`.
2. Add comments.
3. Use local variables for extension size.
4. Change function signature, by adding buffer size and output length.
5. Take server srtp profile out of the loop.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor a978804a1b Style fixes
1. Fix indentations.
2. Remove redundant whitespaces.
3. Keep short lines.
4. Grammar fixes.
5. Rephrase function description.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor ef72faf2bb Style fixes
1. Adjust to 80 colums where possible.
2. Add \ remove spaces where needed.
3. Fix alignments.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor b465539476 Add tests and code to support
1. Add DTLS-SRTP tests in `ssl-opts.sh`
2. Add logs for the tests to filter.
3. Add function to get the profile informations.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor 1c399bdffe Set authmode to optional, if not set
Set authmode to `MBEDTLS_SSL_VERIFY_REQUIRED` when using dtls-srtp,
in case authmode was not set. This is to support self signed certificates
received by the server, which is the case with webRTC. Certificate fingerprints
are verified outside the dtls stack, as defined in RFC 5763.

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor 57cc70ec81 Enforce SRTP mandatory HS messages
Enforce CertificateRequest, client and server Certificates, and
CertificateVerify messages, which are mandatory in DTLS-SRTP,
as defined in RFC 5764 section 4.1

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor a37326abb1 Make keyu material length in \ out
Make the key material length in mbedtls_ssl_get_dtls_srtp_key_material
to be in\out, like it is done all over the library

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor 591f162bed support mki value
Add support mki value in the DTLS-SRTP

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Ron Eldor 3adb9928f3 Add mki value and some review comments
1. Add check for prerequisites in check_config.h
2. Add mki value to use_srtp extension
3. address some review comments

Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal 701984d300 Comply with mbedtls naming rules
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal 2d9470be76 Improve DTLS SRTP API with a dedicated function to get generated keys
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal bbc057af73 Move available dtls srtp profile list to ssl_config
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Johan Pascal b62bb51aff Add RFC5764 - SRTP key generation during DTLS handshake
Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
2020-10-29 01:14:49 +01:00
Hanno Becker a817ea449a Check presence of DTLS timers only once
Mbed TLS requires users of DTLS to configure timer callbacks
needed to implement the wait-and-retransmit logic of DTLS.

Previously, the presence of these timer callbacks was checked
at every invocation of `mbedtls_ssl_fetch_input()`, so lowest
layer of the messaging stack interfacing with the underlying
transport.

This commit removes this recurring check and instead checks the
presence of timers once at the beginning of the handshake.

The main rationale for this change is that it is a step towards
separating the various layers of the messaging stack more cleanly:
datagram layer, record layer, message layer, retransmission layer.

Signed-off-by: Hanno Becker <hanno.becker@arm.com>
2020-10-20 15:29:14 +01:00
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
Gilles Peskine db09ef6d22 Include common.h instead of config.h in library source files
In library source files, include "common.h", which takes care of
including "mbedtls/config.h" (or the alternative MBEDTLS_CONFIG_FILE)
and other things that are used throughout the library.

FROM=$'#if !defined(MBEDTLS_CONFIG_FILE)\n#include "mbedtls/config.h"\n#else\n#include MBEDTLS_CONFIG_FILE\n#endif' perl -i -0777 -pe 's~\Q$ENV{FROM}~#include "common.h"~' library/*.c 3rdparty/*/library/*.c scripts/data_files/error.fmt scripts/data_files/version_features.fmt

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-07-02 11:26:57 +02:00
danh-arm c4b6656a91
Merge pull request #3405 from AndrzejKurek/variable-buffers-cid-serialization
Update iv and len context pointers manually when reallocating buffers
2020-06-17 12:26:24 +01:00
Andrzej Kurek b657783269
Update iv and len context pointers manually when reallocating buffers
These fields might be shifted accordingly in `ssl_parse_record_header()`
when receiving a connection with CID, so they require a manual update
after calling the generic `mbedtls_ssl_reset_in_out_pointers()`.

This commit also adds a regression test which is run by all.sh.

Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
2020-06-16 11:54:51 -04:00