Commit graph

1247 commits

Author SHA1 Message Date
Janos Follath 15a7cd1052 Merge tag 'mbedtls-2.16.7' into merge-2.16.7-release-to-mbedtls-2.16
Mbed TLS 2.16.7
2020-07-01 11:34:02 +01:00
Ronald Cron c9914ecd01 programs: cmake: Fix relative path warnings
The path to source files were relative which triggered
warnings when generating the build system.

Move to absolute paths based on CMAKE_CURRENT_SOURCE_DIR.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-06-25 23:29:07 +02:00
Ronald Cron c7f8aec493 programs: ssl: cmake: Add missing executable
Add the missing executable in the list of executables
to install.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-06-25 23:23:52 +02:00
Ronald Cron fc253b38bb programs: ssl: cmake: Reorder declaration of executables
Reorder declaration of executables in alphabetic order.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-06-25 23:23:23 +02:00
Janos Follath f69b919844 Merge branch 'mbedtls-2.16-restricted' into mbedtls-2.16.7r0 2020-06-25 09:19:21 +01:00
Manuel Pégourié-Gonnard 23983f30de 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>
2020-06-16 10:51:42 +02:00
Bence Szépkúti f744bd72ee Update license headers to Apache-2.0 OR GPL-2.0-or-later
This will allow us to ship the LTS branches in a single archive

This commit was generated using the following script:

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find -path './.git' -prune -o '(' -name '*.gdb' -o -name '*.pl' -o -name '*.py' -o -name '*.sh' ')' -print | xargs sed -i "
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Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-15 12:48:48 +02:00
Bence Szépkúti 51b41d5422 Add Apache-2.0 headers to all scripts
This commit was generated using the following script:

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Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-15 12:18:56 +02:00
Bence Szépkúti 468a76f88a Add copyright dates to all scripts
To find any files with a missing copyright declaration, use the following script:

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Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-15 12:18:56 +02:00
Bence Szépkúti cd6fd060ec Remove hardcoded line number from the zeroize test
Instead, we insert a comment containing GDB_BREAK_HERE in the line we
want to break at, and let the gdb script search for it.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-10 11:13:41 +02:00
Bence Szépkúti 74fc3be396 Remove superfluous include from zeroize.c
This brings zeroize.c and test_zeroize.gdb in sync with development.

The include was introduced in 3b0c43063 (#2710).
Reverts ff8ae1115 from the same pull request.

Signed-off-by: Bence Szépkúti <bence.szepkuti@arm.com>
2020-06-10 11:13:13 +02:00
Gilles Peskine cd29f862f6 Normalize line endings
Convert all text files to Unix line endings unless they're Windows
stuff.

Make sure that all text files have a trailing newline.

Remove whitespace at the end of lines.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-05-28 18:31:24 +02:00
Gilles Peskine 8b34fef0a8
Merge pull request #2710 from k-stachowiak/unified-exit-in-examples-2.16
Backport 2.16: Unify the example programs' termination
2020-05-12 10:46:36 +02:00
Gilles Peskine d135bbd7a1 Strict C99: don't use extremely large string literals
Don't use string literals that are longer than 4095 bytes, which is
the minimum that C99 compilers are required to support. Compilers are
extremely likely to support longer literals, but `gcc -std=c99 -pedantic`
complains.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-28 15:02:50 +02:00
Gilles Peskine 971e5e9f98 Strict C99: don't use a signed* when an unsigned* is expected
It works in practice on almost every platform, given that we're only
using the wrong type in cases where the value is guaranteed to stay
within the value bits of a signed int. But even in this case it may or
may not be strictly conforming. Anyway `gcc -std=c99 -pedantic`
rejects it.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
2020-04-28 15:02:50 +02:00
Manuel Pégourié-Gonnard e675a8d9bb Get rid of a magic value in benchmark.c
Also update its value while at it.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-04-17 11:16:09 +02:00
Manuel Pégourié-Gonnard 01955792b3 Fix integer overflow in benchmark program
When building with MBEDTLS_MEMORY_DEBUG enabled, and running the ecdh part,
the benchmark program would start writing a very large number of space
characters on stdout, and would have to be killed because it never seemed to
terminate.

This was due to an integer overflow in computing how many space to leave after
the title in order to get memory measurements aligned, which resulted in up
to SIZE_MAX spaces being printed.

This commit just fixes the overflow, the next commit is going to fix the magic
number (12).

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-04-17 11:14:30 +02:00
Gilles Peskine 5e65619669
Merge pull request #3142 from mpg/fix-reconnect-2.16
[Backport 2.16] Improve testing of DTLS client hard reconnect
2020-04-02 19:21:16 +02:00
Manuel Pégourié-Gonnard 7fe5ac1b62 Fix some style issues in udp_proxy
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-03-31 12:32:05 +02:00
Manuel Pégourié-Gonnard b85ce9eaeb Add negative test for hard reconnect cookie check
The server must check client reachability (we chose to do that by checking a
cookie) before destroying the existing association (RFC 6347 section 4.2.8).
Let's make sure we do, by having a proxy-in-the-middle inject a ClientHello -
the server should notice, but not destroy the connection.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-03-31 09:37:28 +02:00
Ercan Ozturk a46f75cbad Fix debug message by using the correct function name called
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-03-19 12:08:44 +01:00
Manuel Pégourié-Gonnard 498e632b08 Fix possible close_notify/ClientHello confusion
The ssl-opt.sh test cases using session resumption tend to fail occasionally
on the CI due to a race condition in how ssl_server2 and ssl_client2 handle
the reconnection cycle.

The server does the following in order:
- S1 send application data
- S2 send a close_notify alert
- S3 close the client socket
- S4 wait for a "new connection" (actually a new datagram)
- S5 start a handshake

The client does the following in order:
- C1 wait for and read application data from the server
- C2 send a close_notify alert
- C3 close the server socket
- C4 reset session data and re-open a server socket
- C5 start a handshake

If the client has been able to send the close_notify (C2) and if has been
delivered to the server before if closes the client socket (S3), when the
server reaches S4, the datagram that we start the new connection will be the
ClientHello and everything will be fine.

However if S3 wins the race and happens before the close_notify is delivered,
in S4 the close_notify is what will be seen as the first datagram in a new
connection, and then in S5 this will rightfully be rejected as not being a
valid ClientHello and the server will close the connection (and go wait for
another one). The client will then fail to read from the socket and exit
non-zero and the ssl-opt.sh harness will correctly report this as a failure.

In order to avoid this race condition in test using ssl_client2 and
ssl_server2, this commits introduces a new command-line option
skip_close_notify to ssl_client2 and uses it in all ssl-opt.sh tests that use
session resumption with DTLS and ssl_server2.

This works because ssl_server2 knows how many messages it expects in each
direction and in what order, and closes the connection after that rather than
relying on close_notify (which is also why there was a race in the first
place).

Tests that use another server (in practice there are two of them, using
OpenSSL as a server) wouldn't work with skip_close_notify, as the server won't
close the connection until the client sends a close_notify, but for the same
reason they don't need it (there is no race between receiving close_notify and
closing as the former is the cause of the later).

An alternative approach would be to make ssl_server2 keep the connection open
until it receives a close_notify. Unfortunately it creates problems for tests
where we simulate a lossy network, as the close_notify could be lost (and the
client can't retransmit it). We could modify udp_proxy with an option to never
drop alert messages, but when TLS 1.3 comes that would no longer work as the
type of messages will be encrypted.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
2020-02-26 09:33:05 +01:00
Jaeden Amero c0546439c4
Merge pull request #2894 from gilles-peskine-arm/drbg-set_entropy_len-2.16
Backport 2.16: Allow xxx_drbg_set_entropy_len before xxx_drbg_seed
2019-11-29 16:17:34 +00:00
Gilles Peskine f4c0dbc628 Fix CTR_DRBG benchmark
You can't reuse a CTR_DRBG context without free()ing it and
re-init()ing. This generally happened to work, but was never
guaranteed. It could have failed with alternative implementations of
the AES module because mbedtls_ctr_drbg_seed() calls
mbedtls_aes_init() on a context which is already initialized if
mbedtls_ctr_drbg_seed() hasn't been called before, plausibly causing a
memory leak. Calling free() and seed() with no intervening init fails
when MBEDTLS_THREADING_C is enabled and all-bits-zero is not a valid
mutex representation. So add the missing free() and init().
2019-10-28 21:09:00 +01:00
Jaeden Amero 8fedeaacd5
Merge pull request #2871 from gilles-peskine-arm/test_malloc_0_null-2.16
Backport 2.16: Test the library when malloc(0) returns NULL
2019-10-22 13:41:48 +01:00
Gilles Peskine 1989218456 Move MBEDTLS_CTR_DRBG_USE_128_BIT_KEY to the correct section
It's an on/off feature, so it should be listed in version_features.
2019-10-04 11:21:25 +02:00
Gilles Peskine 7430d23358 Add a calloc self-test
Add a very basic test of calloc to the selftest program. The selftest
program acts in its capacity as a platform compatibility checker rather
than in its capacity as a test of the library.

The main objective is to report whether calloc returns NULL for a size
of 0. Also observe whether a free/alloc sequence returns the address
that was just freed and whether a size overflow is properly detected.
2019-09-30 13:58:12 +02:00
k-stachowiak 6d10a56ce8 Remove obsolete comment 2019-08-16 09:14:32 +02:00
Krzysztof Stachowiak 3b0c430638 Unify the example programs' termination
This is done to account for platforms, for which we want custom behavior
upon the program termination, hence we call `mbedtls_exit()` instead of
returning from `main()`.

For the sake of consistency, introduces the modifications have been made
to the test and utility examples as well. These, while less likely to be
used in the low level environments, won't suffer from such a change.
2019-08-16 09:14:32 +02:00
Jaeden Amero 7b03e87fbc Merge remote-tracking branch 'restricted/pr/582' into mbedtls-2.16-restricted
* restricted/pr/582:
  Add a test for signing content with a long ECDSA key
  Add documentation notes about the required size of the signature buffers
  Add missing MBEDTLS_ECP_C dependencies in check_config.h
  Change size of preallocated buffer for pk_sign() calls
2019-06-24 11:40:59 +01:00
Jaeden Amero 7f132cc1a3 Merge remote-tracking branch 'origin/pr/2714' into mbedtls-2.16
* origin/pr/2714:
  programs: Make `make clean` clean all programs always
  ssl_tls: Enable Suite B with subset of ECP curves
  windows: Fix Release x64 configuration
  timing: Remove redundant include file
  net_sockets: Fix typo in net_would_block()
2019-06-21 16:00:52 +01:00
Jaeden Amero 0c42e908e5 programs: Make make clean clean all programs always
If `make TEST_CPP:=1` is run, and then `make clean` (as opposed to `make
TEST_CPP:=1 clean`), the cpp_dummy_build will be left behind after the
clean. Make `make clean more convenient to use by removing programs that
could be generated from any configuration, not just the active one.

Fixes #1862
2019-06-20 16:34:24 +01:00
Gilles Peskine 0b87412ac5 Remove mbedtls_param_failed from programs
All sample and test programs had a definition of mbedtls_param_failed.
This was necessary because we wanted to be able to build them in a
configuration with MBEDTLS_CHECK_PARAMS set but without a definition
of MBEDTLS_PARAM_FAILED. Now that we activate the sample definition of
MBEDTLS_PARAM_FAILED in config.h when testing with
MBEDTLS_CHECK_PARAMS set, this boilerplate code is no longer needed.
2019-06-17 19:10:13 +02:00
Gilles Peskine 30346f639e Make it easier to define MBEDTLS_PARAM_FAILED as assert
Introduce a new configuration option MBEDTLS_CHECK_PARAMS_ASSERT,
which is disabled by default. When this option is enabled,
MBEDTLS_PARAM_FAILED defaults to assert rather than to a call to
mbedtls_param_failed, and <assert.h> is included.

This fixes #2671 (no easy way to make MBEDTLS_PARAM_FAILED assert)
without breaking backward compatibility. With this change,
`config.pl full` runs tests with MBEDTLS_PARAM_FAILED set to assert,
so the tests will fail if a validation check fails, and programs don't
need to provide their own definition of mbedtls_param_failed().
2019-06-17 19:07:42 +02:00
Jaeden Amero 8f27b4455c Merge remote-tracking branch 'origin/pr/2695' into mbedtls-2.16
* origin/pr/2695:
  UDP proxy: Don't attempt to dissect dgram into records when dropping
2019-06-14 08:55:47 +01:00
Jaeden Amero 7aed01c0dc Merge remote-tracking branch 'origin/pr/2481' into mbedtls-2.16
* origin/pr/2481:
  Document support for MD2 and MD4 in programs/x509/cert_write
  Correct name of X.509 parsing test for well-formed, ill-signed CRT
  Add test cases exercising successful verification of MD2/MD4/MD5 CRT
  Add test case exercising verification of valid MD2 CRT
  Add MD[245] test CRTs to tree
  Add instructions for MD[245] test CRTs to tests/data_files/Makefile
  Add suppport for MD2 to CSR and CRT writing example programs
  Convert further x509parse tests to use lower-case hex data
  Correct placement of ChangeLog entry
  Adapt ChangeLog
  Use SHA-256 instead of MD2 in X.509 CRT parsing tests
  Consistently use lower case hex data in X.509 parsing tests
2019-06-14 08:50:47 +01:00
Hanno Becker bcf97ec18c UDP proxy: Don't attempt to dissect dgram into records when dropping
To prevent dropping the same message over and over again, the UDP proxy
test application programs/test/udp_proxy _logically_ maintains a mapping
from records to the number of times the record has already been dropped,
and stops dropping once a configurable threshold (currently 2) is passed.

However, the actual implementation deviates from this logical view
in two crucial respects:
- To keep the implementation simple and independent of
  implementations of suitable map interfaces, it only counts how
  many times a record of a given _size_ has been dropped, and
  stops dropping further records of that size once the configurable
  threshold is passed. Of course, this is not fail-proof, but a
  good enough approximation for the proxy, and it allows to use
  an inefficient but simple array for the required map.
- The implementation mixes datagram lengths and record lengths:
  When deciding whether it is allowed to drop a datagram, it
  uses the total datagram size as a lookup index into the map
  counting the number of times a package has been dropped. However,
  when updating this map, the UDP proxy traverses the datagram
  record by record, and updates the mapping at the level of record
  lengths.

Apart from this inconsistency, the current implementation suffers
from a lack of bounds checking for the parsed length of incoming
DTLS records that can lead to a buffer overflow when facing
malformed records.

This commit removes the inconsistency in datagram vs. record length
and resolves the buffer overflow issue by not attempting any dissection
of datagrams into records, and instead only counting how often _datagrams_
of a particular size have been dropped.

There is only one practical situation where this makes a difference:
If datagram packing is used by default but disabled on retransmission
(which OpenSSL has been seen to do), it can happen that we drop a
datagram in its initial transmission, then also drop some of its records
when they retransmitted one-by-one afterwards, yet still keeping the
drop-counter at 1 instead of 2. However, even in this situation, we'll
correctly count the number of droppings from that point on and eventually
stop dropping, because the peer will not fall back to using packing
and hence use stable record lengths.
2019-06-13 11:21:42 +01:00
k-stachowiak e79c939693 Change size of preallocated buffer for pk_sign() calls 2019-06-06 13:13:26 +02:00
Hanno Becker d0f2d8100c Document support for MD2 and MD4 in programs/x509/cert_write 2019-06-03 16:20:10 +01:00
Hanno Becker 8a0193e619 Add suppport for MD2 to CSR and CRT writing example programs
The example programs programs/x509/cert_req and programs/x509/cert_write
(demonstrating the use of X.509 CSR and CRT writing functionality)
previously didn't support MD2 signatures.

For testing purposes, this commit adds support for MD2 to cert_req,
and support for MD2 and MD4 to cert_write.
2019-06-03 16:19:34 +01:00
Hanno Becker 1ce1a51816 Document "none" value for ca_path/ca_file in ssl_client2/ssl_server2 2019-05-30 10:21:59 +01:00
Hanno Becker 7ae36e4179 ssl_server2: Skip CA setup if ca_path or ca_file argument "none"
This allows to test PSK-based ciphersuites via ssl_server2 in builds
which have MBEDTLS_X509_CRT_PARSE_C enabled but both MBEDTLS_FS_IO and
MBEDTLS_CERTS_C disabled.
2019-05-30 10:21:59 +01:00
Hanno Becker a7242061c4 ssl_client2: Skip CA setup if ca_path or ca_file argument "none"
This allows to test PSK-based ciphersuites via ssl_client2 in builds
which have MBEDTLS_X509_CRT_PARSE_C enabled but both MBEDTLS_FS_IO and
MBEDTLS_CERTS_C disabled.

A similar change is applied to the `crt_file` and `key_file` arguments.
2019-05-30 10:21:59 +01:00
Hanno Becker c258c440b5 Correct white spaces in ssl_server2 and ssl_client2 2019-05-30 10:21:59 +01:00
Hanno Becker bb676f7d32 Adapt ssl_client2 to parse DER encoded test CRTs if PEM is disabled 2019-05-30 10:21:59 +01:00
Hanno Becker 38566ccbd5 Adapt ssl_server2 to parse DER encoded test CRTs if PEM is disabled 2019-05-30 10:21:59 +01:00
Jaeden Amero 9cfc9ceaf9 Merge remote-tracking branch 'origin/pr/2542' into mbedtls-2.16
* origin/pr/2542:
  Add guards for MBEDTLS_X509_CRL_PARSE_C in sample
2019-04-24 11:21:35 +01:00
Hanno Becker d6028a1894 Improve macro hygiene
This commit improves hygiene and formatting of macro definitions
throughout the library. Specifically:
- It adds brackets around parameters to avoid unintended
  interpretation of arguments, e.g. due to operator precedence.
- It adds uses of the `do { ... } while( 0 )` idiom for macros that
  can be used as commands.
2019-04-24 10:51:54 +02:00
Jaeden Amero d17b5e9abc Merge remote-tracking branch 'origin/pr/2553' into mbedtls-2.16
* origin/pr/2553:
  Remove ssl_cert_test sample app
2019-04-16 15:07:25 +01:00
Ron Eldor 1ec99c66b8 Remove ssl_cert_test sample app
Remove the ssl_cert_test sample application, as it uses
hardcoded certificates that moved, and is redundant with the x509
tests and applications. Fixes #1905.
2019-04-07 16:51:18 +03:00