Commit graph

5595 commits

Author SHA1 Message Date
Gilles Peskine
fe1c0937d7 ssl_write_server_key_exchange refactor: remove redundant variable n
Remove redundant variable n, which counts in parallel to p. Having
both adds the burden of keeping them in synch for no benefit.
2018-04-24 09:32:28 +02:00
Gilles Peskine
81d4e899a4 Don't rely on private key metadata in SSL
In SSL, don't use mbedtls_pk_ec or mbedtls_pk_rsa on a private
signature or decryption key (as opposed to a public key or a key used
for DH/ECDH). Extract the data (it's the same data) from the public
key object instead. This way the code works even if the private key is
opaque or if there is no private key object at all.

Specifically, with an EC key, when checking whether the curve in a
server key matches the handshake parameters, rely only on the offered
certificate and not on the metadata of the private key.
2018-04-24 09:26:03 +02:00
Gilles Peskine
ec9c626b75 ChangeLog entry for PR #964 2018-01-02 16:27:50 +01:00
Gilles Peskine
17196cd3be Merge remote-tracking branch 'upstream-public/pr/964' into development 2018-01-02 16:24:29 +01:00
Gilles Peskine
8e09d8f6a5 Add full stop to ChangeLog entry 2018-01-02 16:09:42 +01:00
Gilles Peskine
197a6d454b Merge remote-tracking branch 'upstream-public/pr/1097' into development 2018-01-02 16:09:15 +01:00
Gilles Peskine
618d091f2a Add ChangeLog entry for CCM_ALT
Edit the CMAC_ALT ChangeLog entry to mention CCM_ALT which was added
in a sister PR and is being merged together.

Use full name rather than Github id as attribution.

Move the entry under "Features" for better consistency with historical
practice.
2018-01-02 16:09:07 +01:00
Gilles Peskine
3fcc045c23 Merge remote-tracking branch 'upstream-public/pr/866' into development
Conflict resolution: additions in the same places as
upstream-public/pr/865, both adding into lexicographically sorted
lists, resolved by taking the additions in lexicographic order.
2018-01-02 15:55:55 +01:00
Gilles Peskine
7c483b6765 Merge remote-tracking branch 'upstream-public/pr/865' into development 2018-01-02 15:35:18 +01:00
Manuel Pégourié-Gonnard
4b660eca1e Merge remote-tracking branch 'public/pr/1207' into development
* public/pr/1207:
  all.sh: add some documentation
  all.sh: new option --no-armcc
  all.sh: add --yotta to go with --no-yotta
  all.sh: --keep-going mode
  all.sh: cleaned up usage output
  all.sh: indent
2017-12-26 10:58:02 +01:00
Manuel Pégourié-Gonnard
ae3925c774 Merge remote-tracking branch 'public/pr/1136' into development
* public/pr/1136:
  Timing self test: shorten redundant tests
  Timing self test: increased duration
  Timing self test: increased tolerance
  Timing unit tests: more protection against infinite loops
  Unit test for mbedtls_timing_hardclock
  New timing unit tests
  selftest: allow excluding a subset of the tests
  selftest: allow running a subset of the tests
  selftest: refactor to separate the list of tests from the logic
  Timing self test: print some diagnosis information
  mbedtls_timing_get_timer: don't use uninitialized memory
  timing interface documentation: minor clarifications
  Timing: fix mbedtls_set_alarm(0) on Unix/POSIX
2017-12-26 10:42:20 +01:00
Gilles Peskine
312391f810 Merge remote-tracking branch 'upstream-public/pr/1230' into development 2017-12-22 11:54:28 +01:00
Gilles Peskine
192c72f7a1 all.sh: add some documentation 2017-12-21 16:54:14 +01:00
Azim Khan
c4e9694d43 Add MBEDTLS_NO_UDBL_DIVISION to excludes of full config 2017-12-21 15:22:37 +00:00
Azim Khan
c3c3a68e74 Update usage description 2017-12-21 15:19:53 +00:00
Gilles Peskine
bca6ab9d38 all.sh: new option --no-armcc
With this option, don't run anything that requires armcc or yotta, so
the script can run offline.
2017-12-21 15:21:31 +01:00
Gilles Peskine
2a22a8041c all.sh: add --yotta to go with --no-yotta
Add --yotta which is currently a no-op but may not remain so if we
decide to make no-yotta the default in the future.
2017-12-21 15:19:00 +01:00
Gilles Peskine
7c6521688a all.sh: --keep-going mode
Add --keep-going mode to all.sh. In this mode, if a test fails, keep
running the subsequent tests. If a build fails, skip any tests of this
build and move on to the next tests. Errors in infrastructure, such as
git or cmake runs, remain fatal. Print an error summary at the end of
the run, and return a nonzero code if there was any failure.

In known terminal types, use color to highlight errors.

On a fatal signal, interrupt the run and report the errors so far.
2017-12-21 15:17:21 +01:00
Gilles Peskine
709346aed8 all.sh: cleaned up usage output 2017-12-21 15:16:11 +01:00
Gilles Peskine
7ad603e662 all.sh: indent 2017-12-21 15:13:27 +01:00
Azim Khan
0d44573e8b Add option to do baremetal configuration. 2017-12-21 10:41:38 +00:00
Manuel Pégourié-Gonnard
7000e574b6 Merge remote-tracking branch 'public/pr/1210' into development
* public/pr/1210:
  compat.sh: use wait_server_start
  wait_server_start: minor efficiency improvement
2017-12-21 11:11:02 +01:00
Ron Eldor
621080d7c6 Fix compilation issue weh self test defined
1. Surround the generate keys with
`#if ! defined(MBEDTLS_CMAC_ALT) || defined(MBEDTLS_SELF_TEST)`
to resolve build issue when `MBEDTLS_SELF_TEST` is defined for
alternative CMAC as well
2. Update ChangeLog
2017-12-21 10:57:43 +02:00
Gilles Peskine
ada3ee8b9d Timing self test: shorten redundant tests
We don't need to test multiple delays in a self-test.
Save 5s of busy-wait.
2017-12-20 22:31:17 +01:00
Gilles Peskine
8873bcc4de Timing self test: increased duration
Increase the duration of the self test, otherwise it tends to fail on
a busy machine even with the recently upped tolerance. But run the
loop only once, it's enough for a simple smoke test.
2017-12-20 21:57:48 +01:00
Gilles Peskine
0f59b130a9 Timing self test: increased tolerance
mbedtls_timing_self_test fails annoyingly often when running on a busy
machine such as can be expected of a continous integration system.
Increase the tolerances in the delay test, to reduce the chance of
failures that are only due to missing a deadline on a busy machine.
2017-12-20 21:57:48 +01:00
Gilles Peskine
2a26d620fb Timing unit tests: more protection against infinite loops
If timing_timer_simple fails because it detects that timers are likely
to never expire (e.g. going backward or not incrementing), skip all
tests that rely on timers.
2017-12-20 21:57:48 +01:00
Gilles Peskine
078f1a1512 Unit test for mbedtls_timing_hardclock
Do test mbedtls_timing_hardclock. We can't reliably test much about
it, but at least test that it doesn't crash, isn't constant, and
doesn't look completely random.
2017-12-20 21:57:48 +01:00
Gilles Peskine
8064bf3adf New timing unit tests
New set of unit tests for the timing module, instead of just running
the selftest function.

The selftest function sometimes fails on a heavily loaded
machine (such as a typical continuous integration system). Because of
the all-in-one nature of the test and because the exact load pattern
can be hard to reproduce, it is difficult to diagnose failures of CI
runs with selftest. The new tests are more separated and I strove to
point out potential failure modes in comments.

* mbedtls_timing_hardclock: not tested. This function gives so few
  guarantees that there isn't much to test, and it is hard to test
  reliably because clock cycles don't easily relate to time in any
  remotely portable way. This function isn't used in the library
  anyway, it's only there for benchmark programs.
* mbedtls_timing_get_timer: tested by setting a timer and verifying
  that it reaches its target, and by verifying that a timer started
  later than another always has a smaller elapsed time.
* mbedtls_set_alarm: tested by setting an alarm, busy-waiting for it
  and measuring the elapsed time with a timer.
* mbedtls_timing_set_delay, mbedtls_timing_get_delay: tested by
  setting a delay object and watching it go through its two delay
  values, using a timer to check that the delays are passed at the
  expected time.

The tests pass under light to moderate load, but some of them can be
defeated with sufficiently heavy load. This is unavoidable since the
test process to be effectively suspended for any length of time,
making us think that a timer has gone on for too long.
2017-12-20 21:57:48 +01:00
Gilles Peskine
ff79d27f5c selftest: allow excluding a subset of the tests
E.g. "selftest -x timing" runs all the self-tests except timing.
2017-12-20 21:57:48 +01:00
Gilles Peskine
c82fbb4e14 selftest: allow running a subset of the tests
If given command line arguments, interpret them as test names and only
run those tests.
2017-12-20 20:23:13 +01:00
Gilles Peskine
319ac801a8 selftest: refactor to separate the list of tests from the logic
No behavior change.
2017-12-20 20:19:27 +01:00
Gilles Peskine
0827d5c07d Timing self test: print some diagnosis information
Print some not-very-nice-looking but helpful diagnosis information if
the timing selftest fails. Since the failures tend to be due to heavy
system load that's hard to reproduce, this information is necessary to
understand what's going on.
2017-12-20 19:22:30 +01:00
Gilles Peskine
d92f0aa3be mbedtls_timing_get_timer: don't use uninitialized memory
mbedtls_timing_get_timer with reset=1 is called both to initialize a
timer object and to reset an already-initialized object. In an
initial call, the content of the data structure is indeterminate, so
the code should not read from it. This could crash if signed overflows
trap, for example.

As a consequence, on reset, we can't return the previously elapsed
time as was previously done on Windows. Return 0 as was done on Unix.
2017-12-20 18:53:52 +01:00
Gilles Peskine
a9edc4805b timing interface documentation: minor clarifications 2017-12-20 18:50:25 +01:00
Gilles Peskine
a0af95f052 Timing: fix mbedtls_set_alarm(0) on Unix/POSIX
The POSIX/Unix implementation of mbedtls_set_alarm did not set the
mbedtls_timing_alarmed flag when called with 0, which was inconsistent
with what the documentation implied and with the Windows behavior.
2017-12-20 18:50:03 +01:00
Manuel Pégourié-Gonnard
705c52f5ec Merge remote-tracking branch 'public/pr/1145' into development
* public/pr/1145:
  Address PR review comments
  Fix crash when calling `mbedtls_ssl_cache_free` twice
2017-12-19 11:37:36 +01:00
Manuel Pégourié-Gonnard
4712119687 Merge remote-tracking branch 'restricted/pr/397' into development
* restricted/pr/397:
  Don't split error code description across multiple lines
  Register new error code in error.h
  Move deprecation to separate section in ChangeLog
  Extend scope of ERR_RSA_UNSUPPORTED_OPERATION error code
  Adapt RSA test suite
  Adapt ChangeLog
  Deprecate usage of RSA primitives with wrong key type
2017-12-19 11:27:22 +01:00
Manuel Pégourié-Gonnard
535553e7d8 Merge remote-tracking branch 'public/pr/1184' into development
* public/pr/1184:
  Add --no-yotta option to all.sh
  Fix build without MBEDTLS_FS_IO
2017-12-18 11:42:30 +01:00
Gilles Peskine
12c49c7f7c compat.sh: use wait_server_start
Port wait_server_start from ssl-opt.sh to compat.sh, instead of just
using "sleep 1". This solves the problem that on a heavily loaded
machine, sleep 1 is sometimes not enough (we had CI failures because
of this). This is also faster on a lightly-loaded machine (execution
time reduced from ~8min to ~6min on my machine).
2017-12-14 19:02:00 +01:00
Gilles Peskine
418b536028 wait_server_start: minor efficiency improvement
In wait_server_start, fork less. When lsof is present, call it on the
expected process. This saves a few percent of execution time on a
lightly loaded machine. Also, sleep for a short duration rather than
using a tight loop.
2017-12-14 18:58:42 +01:00
Hanno Becker
1434a365a6 Don't split error code description across multiple lines 2017-12-13 11:24:49 +00:00
Gilles Peskine
86ffd80456 Register new error code in error.h 2017-12-10 20:04:13 +01:00
Gilles Peskine
d629411212 Merge branch 'pr_920' into development 2017-12-01 23:46:58 +01:00
Gilles Peskine
8acce85175 Added ChangeLog entry 2017-12-01 23:46:40 +01:00
Gilles Peskine
ff01e009e6 Merge branch 'pr_1043' into development 2017-12-01 23:42:17 +01:00
Gilles Peskine
b592f32291 Added ChangeLog entry 2017-12-01 23:40:28 +01:00
Gilles Peskine
e3783da0b2 Merge remote-tracking branch 'upstream-public/pr/1172' into development 2017-12-01 22:36:21 +01:00
Gilles Peskine
da519251d4 Add --no-yotta option to all.sh
The Yotta tools break in some environments and it's useful to be able
to run the rest of all.sh nonetheless.
2017-11-30 14:24:33 +01:00
Gilles Peskine
832f349f93 Fix build without MBEDTLS_FS_IO
Fix missing definition of mbedtls_zeroize when MBEDTLS_FS_IO is
disabled in the configuration.

Introduced by e7707228b4
    Merge remote-tracking branch 'upstream-public/pr/1062' into development
2017-11-30 12:03:27 +01:00