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01/02: gnu: address@hidden: Fix getentropy() calls on kernels < 3.17.
From: |
Leo Famulari |
Subject: |
01/02: gnu: address@hidden: Fix getentropy() calls on kernels < 3.17. |
Date: |
Tue, 14 Mar 2017 03:00:44 -0400 (EDT) |
lfam pushed a commit to branch core-updates
in repository guix.
commit dc5cec21f275a023a2793befb692a0dc193ed88a
Author: Leo Famulari <address@hidden>
Date: Mon Mar 13 17:11:19 2017 -0400
gnu: address@hidden: Fix getentropy() calls on kernels < 3.17.
* gnu/packages/patches/python-2.7-getentropy-on-old-kernels.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
* gnu/packages/python.scm (python-2.7)[source]: Use it.
---
gnu/local.mk | 1 +
.../python-2.7-getentropy-on-old-kernels.patch | 54 ++++++++++++++++++++++
gnu/packages/python.scm | 3 +-
3 files changed, 57 insertions(+), 1 deletion(-)
diff --git a/gnu/local.mk b/gnu/local.mk
index f4d3ec1..3c11e3a 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -848,6 +848,7 @@ dist_patch_DATA =
\
%D%/packages/patches/pygpgme-disable-problematic-tests.patch \
%D%/packages/patches/pyqt-configure.patch \
%D%/packages/patches/python-2-deterministic-build-info.patch \
+ %D%/packages/patches/python-2.7-getentropy-on-old-kernels.patch \
%D%/packages/patches/python-2.7-search-paths.patch \
%D%/packages/patches/python-2.7-site-prefixes.patch \
%D%/packages/patches/python-2.7-source-date-epoch.patch \
diff --git a/gnu/packages/patches/python-2.7-getentropy-on-old-kernels.patch
b/gnu/packages/patches/python-2.7-getentropy-on-old-kernels.patch
new file mode 100644
index 0000000..5a09b4a
--- /dev/null
+++ b/gnu/packages/patches/python-2.7-getentropy-on-old-kernels.patch
@@ -0,0 +1,54 @@
+This patch resolves a compatibility issue when compiled against glibc
+2.25
+and run runder kernels < 3.17:
+
+https://bugzilla.redhat.com/show_bug.cgi?id=1410175
+
+Upstream bug URLs:
+
+https://bugs.python.org/issue29157
+https://bugs.python.org/issue29188
+
+Patch adapted from upstream source repository:
+
+https://github.com/python/cpython/commit/01bdbad3e951014c58581635b94b22868537901c
+
+From 01bdbad3e951014c58581635b94b22868537901c Mon Sep 17 00:00:00 2001
+From: Victor Stinner <address@hidden>
+Date: Mon, 9 Jan 2017 11:10:41 +0100
+Subject: [PATCH] Don't use getentropy() on Linux
+
+Issue #29188: Support glibc 2.24 on Linux: don't use getentropy() function but
+read from /dev/urandom to get random bytes, for example in os.urandom(). On
+Linux, getentropy() is implemented which getrandom() is blocking mode, whereas
+os.urandom() should not block.
+---
+ Misc/NEWS | 5 +++++
+ Python/random.c | 11 +++++++++--
+ 2 files changed, 14 insertions(+), 2 deletions(-)
+
+diff --git a/Python/random.c b/Python/random.c
+index 57c41ffcd6..000cb36938 100644
+--- a/Python/random.c
++++ b/Python/random.c
+@@ -97,8 +97,15 @@ win32_urandom(unsigned char *buffer, Py_ssize_t size, int
raise)
+ }
+
+ /* Issue #25003: Don't use getentropy() on Solaris (available since
+- * Solaris 11.3), it is blocking whereas os.urandom() should not block. */
+-#elif defined(HAVE_GETENTROPY) && !defined(sun)
++ Solaris 11.3), it is blocking whereas os.urandom() should not block.
++
++ Issue #29188: Don't use getentropy() on Linux since the glibc 2.24
++ implements it with the getrandom() syscall which can fail with ENOSYS,
++ and this error is not supported in py_getentropy() and getrandom() is
called
++ with flags=0 which blocks until system urandom is initialized, which is not
++ the desired behaviour to seed the Python hash secret nor for os.urandom():
++ see the PEP 524 which was only implemented in Python 3.6. */
++#elif defined(HAVE_GETENTROPY) && !defined(sun) && !defined(linux)
+ #define PY_GETENTROPY 1
+
+ /* Fill buffer with size pseudo-random bytes generated by getentropy().
+--
+2.12.0
+
diff --git a/gnu/packages/python.scm b/gnu/packages/python.scm
index 5baf329..1f37562 100644
--- a/gnu/packages/python.scm
+++ b/gnu/packages/python.scm
@@ -133,7 +133,8 @@
(patches (search-patches "python-2.7-search-paths.patch"
"python-2-deterministic-build-info.patch"
"python-2.7-site-prefixes.patch"
- "python-2.7-source-date-epoch.patch"))
+ "python-2.7-source-date-epoch.patch"
+ "python-2.7-getentropy-on-old-kernels.patch"))
(modules '((guix build utils)))
;; suboptimal to delete failing tests here, but if we delete them in the
;; arguments then we need to make sure to strip out that phase when it