Commit graph

48 commits

Author SHA1 Message Date
Gilles Peskine 8833e86dcf Timing self test: shorten redundant tests
We don't need to test multiple delays in a self-test.
Save 10s of busy-wait.
2017-12-20 22:33:11 +01:00
Gilles Peskine e405069608 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 22:20:30 +01:00
Gilles Peskine 2484ffeb81 get_timer: don't use uninitialized memory
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 22:12:19 +01:00
Gilles Peskine de896ebd26 Timing: fix set_alarm(0) on Unix/POSIX
The POSIX/Unix implementation of set_alarm did not set the
alarmed flag when called with 0, which was inconsistent
with what the documentation implied and with the Windows behavior.
2017-12-20 22:04:48 +01:00
Manuel Pégourié-Gonnard 3a5ee1c411 Increase tolerance of timing selftest
Forgot to move that one to 20% in previous commit
2015-08-19 14:48:34 +02:00
Manuel Pégourié-Gonnard 25f44a6020 Relax timing_self_test for windows idiosyncrasies
Also widen accepted error to +/- 20 % while at it
2015-08-19 10:22:54 +02:00
Manuel Pégourié-Gonnard 3ab7b96f35 Make hardclock selftest optional 2015-07-06 17:17:55 +02:00
Manuel Pégourié-Gonnard fe44643b0e Rename website and repository 2015-03-06 13:17:10 +00:00
Manuel Pégourié-Gonnard 6d71e4e6c3 Fix one more warning on windows 2015-02-11 12:54:35 +00:00
Manuel Pégourié-Gonnard dda5213982 Fix harmless warnings with mingw in timing.c 2015-02-11 12:33:40 +00:00
Manuel Pégourié-Gonnard 38433535e3 Fix hardclock() with mingw64 2015-02-11 12:33:40 +00:00
Manuel Pégourié-Gonnard 860b51642d Fix url again 2015-01-28 17:12:07 +00:00
Manuel Pégourié-Gonnard 085ab040aa Fix website url to use https. 2015-01-23 11:06:27 +00:00
Manuel Pégourié-Gonnard 9698f5852c Remove maintainer line. 2015-01-23 10:59:00 +00:00
Manuel Pégourié-Gonnard 19f6b5dfaa Remove redundant "all rights reserved" 2015-01-23 10:54:00 +00:00
Manuel Pégourié-Gonnard a658a4051b Update copyright 2015-01-23 09:55:24 +00:00
Manuel Pégourié-Gonnard 967a2a5f8c Change name to mbed TLS in the copyright notice 2015-01-22 14:28:16 +00:00
Sander Niemeijer ef5087d150 Added explicit casts to prevent compiler warnings when trying to build for iOS 2014-08-21 23:48:14 +02:00
Manuel Pégourié-Gonnard 462906f955 Do no test net_usleep() when not defined 2014-08-14 11:34:35 +02:00
Alfred Klomp b308dd72d9 timing.c: avoid referencing garbage value
Found with Clang's `scan-build` tool.

When get_timer() is called with `reset` set to 1, the value of
t->start.tv_sec is used as a rvalue without being initialized first.
This is relatively harmless because the result of get_timer() is not
used by the callers when called in "reset mode". However, scan-build
prints a warning.

Silence the warning by only calculating the delta on non-reset runs,
returning zero otherwise.
2014-08-14 11:34:35 +02:00
Paul Bakker 66d5d076f7 Fix formatting in various code to match spacing from coding style 2014-06-17 17:06:47 +02:00
Paul Bakker d8bb82665e Fix code styling for return statements 2014-06-17 14:06:49 +02:00
Manuel Pégourié-Gonnard e1ac0f8c5d Add back timing selftest with new hardclock test 2014-06-12 21:15:50 +02:00
Paul Bakker 9af723cee7 Fix formatting: remove trailing spaces, #endif with comments (> 10 lines) 2014-05-01 13:03:14 +02:00
Manuel Pégourié-Gonnard cef4ad2509 Adapt sources to configurable config.h name 2014-04-30 16:40:20 +02:00
Manuel Pégourié-Gonnard 0f79babd4b Disable timing_selftest() for now 2014-04-09 15:49:51 +02:00
Manuel Pégourié-Gonnard 79e58421be Also test net_usleep in timing_selttest() 2014-04-04 16:42:44 +02:00
Manuel Pégourié-Gonnard d6aebe108a Add 'volatile' to hardclock()'s asm
Prevents calls from being optimised away in timing_self_test().
(Should no be a problem for calls from other files.)
2014-04-04 16:33:01 +02:00
Manuel Pégourié-Gonnard 470fc935b5 Add timing_self_test() with consistency tests 2014-04-04 16:33:01 +02:00
Manuel Pégourié-Gonnard 487588d0bf Whitespace fixes 2014-04-04 16:33:01 +02:00
Manuel Pégourié-Gonnard dfbf9c711d Fix bug in m_sleep() 2014-03-14 08:41:00 +01:00
Paul Bakker f2561b3f69 Ability to provide alternate timing implementation 2014-02-06 15:32:26 +01:00
Paul Bakker fa6a620b75 Defines for UEFI environment under MSVC added 2013-10-29 14:05:38 +01:00
Paul Bakker bb0139c924 - Moved to more flexible define structure
- Added exception for OpenBSD on Sparc64 (no privilege for call)
2012-10-31 09:53:08 +00:00
Paul Bakker 49d75678a5 - Support INTEGRITY OS 2012-09-26 15:22:07 +00:00
Paul Bakker ca41010b68 - Expanded clobber list on i386 RDTSC call 2011-10-19 14:27:36 +00:00
Paul Bakker 2eee902be3 - Better timer for Windows platforms
- Made alarmed volatile for better Windows compatibility
2011-04-24 15:28:55 +00:00
Paul Bakker b96f154e51 - Fixed copyright message 2010-07-18 20:36:00 +00:00
Paul Bakker 84f12b76fc - Updated Copyright to correct entity 2010-07-18 10:13:04 +00:00
Paul Bakker fc8c4360b8 - Updated copyright line to 2010 2010-03-21 17:37:16 +00:00
Paul Bakker 1f3c39c194 - Removed copyright line for Christophe Devine for clarity 2010-03-21 17:30:05 +00:00
Paul Bakker ff60ee6c2a - Added const-correctness to main codebase 2010-03-16 21:09:09 +00:00
Paul Bakker 77b385e91a - Updated copyright messages on all relevant files 2009-07-28 17:23:11 +00:00
Paul Bakker 34a9056f39 - POLARSSL_HAVE_ASM also used in padlock and timing code. 2009-04-19 21:17:09 +00:00
Paul Bakker 785a9eeece - Added email address to header license information 2009-01-25 14:15:10 +00:00
Paul Bakker e0ccd0a7c3 - Updated Copyright notices 2009-01-04 16:27:10 +00:00
Paul Bakker 40e46940df - First replacement of xyssl by polarssl where needed 2009-01-03 21:51:57 +00:00
Paul Bakker 5121ce5bdb - Renamed include directory to polarssl 2009-01-03 21:22:43 +00:00