Victor Stinner
61d5aab9b9
py_getrandom(): getrandom() *can* return EINTR
...
See the latest version of getrandom() manual page:
http://man7.org/linux/man-pages/man2/getrandom.2.html#NOTES
The behavior when a call to getrandom() that is blocked while reading from
/dev/urandom is interrupted by a signal handler depends on the
initialization state of the entropy buffer and on the request size, buflen.
If the entropy is not yet initialized, then the call will fail with the
EINTR error. If the entropy pool has been initialized and the request size
is large (buflen > 256), the call either succeeds, returning a partially
filled buffer, or fails with the error EINTR. If the entropy pool has been
initialized and the request size is small (buflen <= 256), then getrandom()
will not fail with EINTR. Instead, it will return all of the bytes that
have been requested.
Note: py_getrandom() calls getrandom() with flags=0.
2015-07-30 10:13:52 +02:00
Victor Stinner
81c6df5c0f
(Merge 3.4) Issue #22585 : os.urandom() now releases the GIL when the
...
getentropy() is used (OpenBSD 5.6+).
2015-03-30 11:19:07 +02:00
Victor Stinner
9aa1331c6f
Issue #22585 : os.urandom() now releases the GIL when the getentropy() is used
...
(OpenBSD 5.6+).
2015-03-30 11:18:30 +02:00
Victor Stinner
79b74aeb20
Issue #22181 : os.urandom() now releases the GIL when the getrandom()
...
implementation is used.
2015-03-30 11:16:40 +02:00
Victor Stinner
e134a7fe36
Issue #23752 : _Py_fstat() is now responsible to raise the Python exception
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Add _Py_fstat_noraise() function when a Python exception is not welcome.
2015-03-30 10:09:31 +02:00
Victor Stinner
c9382eb7ae
Issue #23707 : On UNIX, os.urandom() now calls the Python signal handler when
...
read() is interrupted by a signal.
dev_urandom_python() now calls _Py_read() helper instead of calling directly
read().
2015-03-19 23:36:33 +01:00
Victor Stinner
c7cd12da60
Issue #22181 : Fix dev_urandom_noraise(), try calling py_getrandom() before
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opening /dev/urandom.
2015-03-19 23:24:45 +01:00
Victor Stinner
9eb57c5fa5
Issue #22181 : The availability of the getrandom() is now checked in configure,
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and stored in pyconfig.h as the new HAVE_GETRANDOM_SYSCALL define.
Fix os.urandom() tests using file descriptors if os.urandom() uses getrandom().
2015-03-19 22:21:49 +01:00
Victor Stinner
59f7fb29ec
Issue #22181 : On Linux, os.urandom() now uses the new getrandom() syscall if
...
available, syscall introduced in the Linux kernel 3.17. It is more reliable
and more secure, because it avoids the need of a file descriptor and waits
until the kernel has enough entropy.
2015-03-18 14:39:33 +01:00
Victor Stinner
a555cfcb73
Issue #23694 : Enhance _Py_open(), it now raises exceptions
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* _Py_open() now raises exceptions on error. If open() fails, it raises an
OSError with the filename.
* _Py_open() now releases the GIL while calling open()
* Add _Py_open_noraise() when _Py_open() cannot be used because the GIL is not
held
2015-03-18 00:22:14 +01:00
Steve Dower
f2f373f593
Issue #23152 : Implement _Py_fstat() to support files larger than 2 GB on Windows.
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fstat() may fail with EOVERFLOW on files larger than 2 GB because the file size type is an signed 32-bit integer.
2015-02-21 08:44:05 -08:00
Victor Stinner
fe02e39029
Issue #22585 : On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
...
instead of reading /dev/urandom, to get pseudo-random bytes.
2014-12-21 01:16:38 +01:00
Victor Stinner
4d6a3d6c01
Issue #22585 : On OpenBSD 5.6 and newer, os.urandom() now calls getentropy(),
...
instead of reading /dev/urandom, to get pseudo-random bytes.
2014-12-21 01:16:38 +01:00
Serhiy Storchaka
56a6d855e2
Removed duplicated words in in comments and docs.
2014-12-01 18:28:43 +02:00
Serhiy Storchaka
83000a490a
Removed duplicated words in in comments and docs.
2014-12-01 18:30:14 +02:00
Tim Golden
b8ac3e1a20
Issue21393 Use CryptReleaseContext to release Crypt handle on Windows
2014-05-06 13:29:45 +01:00
Victor Stinner
d50c3f3f3a
Issue #21393 : random.c: on Windows, close the hCryptProv handle at exit
2014-05-02 22:06:44 +02:00
Antoine Pitrou
e472aeafc3
Issue #21207 : Detect when the os.urandom cached fd has been closed or replaced, and open it anew.
2014-04-26 14:33:03 +02:00
Christian Heimes
af01f66817
Issue #16136 : Remove VMS support and VMS-related code
2013-12-21 16:19:10 +01:00
Christian Heimes
985ecdcfc2
ssue #19183 : Implement PEP 456 'secure and interchangeable hash algorithm'.
...
Python now uses SipHash24 on all major platforms.
2013-11-20 11:46:18 +01:00
Victor Stinner
0c083461a5
Fix compiler warning in win32_urandom(): explicit cast to DWORD in
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CryptGenRandom()
2013-11-15 23:26:25 +01:00
Georg Brandl
af1edb7f45
merge with 3.3
2013-10-06 18:48:30 +02:00
Georg Brandl
c6a2c9b466
Closes #15213 : update comment for _PyOS_URandom
2013-10-06 18:43:19 +02:00
Antoine Pitrou
4879a963d4
Issue #18756 : os.urandom() now uses a lazily-opened persistent file descriptor, so as to avoid using many file descriptors when run in parallel from multiple threads.
2013-08-31 00:26:02 +02:00
Victor Stinner
daf455554b
Issue #18571 : Implementation of the PEP 446: file descriptors and file handles
...
are now created non-inheritable; add functions os.get/set_inheritable(),
os.get/set_handle_inheritable() and socket.socket.get/set_inheritable().
2013-08-28 00:53:59 +02:00
Antoine Pitrou
95b21460ee
Issue #18756 : Improve error reporting in os.urandom() when the failure is due to something else than /dev/urandom not existing.
2013-08-16 20:49:32 +02:00
Antoine Pitrou
ec34ab5010
Issue #18756 : Improve error reporting in os.urandom() when the failure is due to something else than /dev/urandom not existing.
2013-08-16 20:44:38 +02:00
Martin v. Löwis
3f50bf652b
Drop support for Windows 2000; allow any XP API (but not Vista+).
...
Drop SDK version configuration for Tk compilation, to not bind it to W2k
anymore. Binding it to XP would conflict with Tk's own binding of tkMenu to W2k.
2013-01-25 14:06:18 +01:00
Antoine Pitrou
380c55cc58
Issue #15340 : Fix importing the random module when /dev/urandom cannot be opened.
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This was a regression caused by the hash randomization patch.
2012-09-07 23:49:07 +02:00
Benjamin Peterson
c9f54cf512
enable hash randomization by default
2012-02-21 16:08:05 -05:00
Benjamin Peterson
69e9727657
ensure no one tries to hash things before the random seed is found
2012-02-21 11:08:50 -05:00
Georg Brandl
12897d7d39
Fix typo in conditional.
2012-02-20 23:49:29 +01:00
Georg Brandl
2daf6ae249
Issue #13703 : add a way to randomize the hash values of basic types (str, bytes, datetime)
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in order to make algorithmic complexity attacks on (e.g.) web apps much more complicated.
The environment variable PYTHONHASHSEED and the new command line flag -R control this
behavior.
2012-02-20 19:54:16 +01:00