libreSSL/crypto/compat/arc4random.h

#ifndef LIBCRYPTOCOMPAT_ARC4RANDOM_H
#define LIBCRYPTOCOMPAT_ARC4RANDOM_H

#include <sys/param.h>

#if defined(_AIX)
#include "arc4random_aix.h"

#elif defined(__FreeBSD__)
#include "arc4random_freebsd.h"

#elif defined(__hpux)
#include "arc4random_hpux.h"

#elif defined(__linux__)
#include "arc4random_linux.h"

#elif defined(__NetBSD__)
#include "arc4random_netbsd.h"

#elif defined(__APPLE__)
#include "arc4random_osx.h"

#elif defined(__sun)
#include "arc4random_solaris.h"

#elif defined(_WIN32)
#include "arc4random_win.h"

#else
#error "No arc4random hooks defined for this platform."

#endif

#endif
wrap arc4random header ok @doug 2014-10-30 16:52:29 +01:00			`#ifndef LIBCRYPTOCOMPAT_ARC4RANDOM_H`
			`#define LIBCRYPTOCOMPAT_ARC4RANDOM_H`

override native arc4random_buf on FreeBSD The FreeBSD-native arc4random_buf implementation falls back to weak sources of entropy if the sysctl fails. Remove these dangerous fallbacks by overriding locally. Unfortunately, pthread_atfork() is broken on FreeBSD (at least 9 and 10) if a program does not link to -lthr. Callbacks registered with pthread_atfork() simply fail silently. So, it is not always possible to detect a PID wraparound. I wish we could do better. This improves arc4random_buf's safety compared to the native FreeBSD implementation. Tested on FreeBSD 9 and 10. ok beck@ deraadt@ 2014-10-28 01:22:03 +01:00			`#include <sys/param.h>`

Add experimental AIX support. This includes a WIP failsafe issetugid for now, while research continues on the proper way to do this in a race-free fashion in AIX. 2015-02-11 06:49:31 +01:00			`#if defined(_AIX)`
			`#include "arc4random_aix.h"`

			`#elif defined(__FreeBSD__)`
override native arc4random_buf on FreeBSD The FreeBSD-native arc4random_buf implementation falls back to weak sources of entropy if the sysctl fails. Remove these dangerous fallbacks by overriding locally. Unfortunately, pthread_atfork() is broken on FreeBSD (at least 9 and 10) if a program does not link to -lthr. Callbacks registered with pthread_atfork() simply fail silently. So, it is not always possible to detect a PID wraparound. I wish we could do better. This improves arc4random_buf's safety compared to the native FreeBSD implementation. Tested on FreeBSD 9 and 10. ok beck@ deraadt@ 2014-10-28 01:22:03 +01:00			`#include "arc4random_freebsd.h"`

Add support for HP-UX tested on: HP-UX 11.31 ia64, gcc 4.7.1(HP AllianceOne version) gcc 4.2.3(http://hpux.connect.org.uk) HP C/aC++ HP-UX defaults to use LP32 and it treats long as 32 bit (= 4 bytes). This build forces LP64 for treating long as 64 bit. 2014-12-08 03:08:45 +01:00			`#elif defined(__hpux)`
			`#include "arc4random_hpux.h"`

override native arc4random_buf on FreeBSD The FreeBSD-native arc4random_buf implementation falls back to weak sources of entropy if the sysctl fails. Remove these dangerous fallbacks by overriding locally. Unfortunately, pthread_atfork() is broken on FreeBSD (at least 9 and 10) if a program does not link to -lthr. Callbacks registered with pthread_atfork() simply fail silently. So, it is not always possible to detect a PID wraparound. I wish we could do better. This improves arc4random_buf's safety compared to the native FreeBSD implementation. Tested on FreeBSD 9 and 10. ok beck@ deraadt@ 2014-10-28 01:22:03 +01:00			`#elif defined(__linux__)`
update to newly-refactored arc4random compatibility shims the thread-private bits can move next ok beck@ 2014-07-18 06:58:46 +02:00			`#include "arc4random_linux.h"`

add NetBSD shims for arc4random The current NetBSD release, 6.1.5, fails to reseed arc4random fork. Work around it by providing arc4random/getentropy shims. Revisit when NetBSD 7 is available. 2015-01-21 13:14:24 +01:00			`#elif defined(__NetBSD__)`
			`#include "arc4random_netbsd.h"`

produce a error if platform has no arc4random hook ok deraadt@ beck@ 2014-07-29 03:57:43 +02:00			`#elif defined(__APPLE__)`
update to newly-refactored arc4random compatibility shims the thread-private bits can move next ok beck@ 2014-07-18 06:58:46 +02:00			`#include "arc4random_osx.h"`

produce a error if platform has no arc4random hook ok deraadt@ beck@ 2014-07-29 03:57:43 +02:00			`#elif defined(__sun)`
update to newly-refactored arc4random compatibility shims the thread-private bits can move next ok beck@ 2014-07-18 06:58:46 +02:00			`#include "arc4random_solaris.h"`

Use _WIN32 instead of __WIN32. ok bcook@ 2014-11-05 13:52:00 +01:00			`#elif defined(_WIN32)`
update to newly-refactored arc4random compatibility shims the thread-private bits can move next ok beck@ 2014-07-18 06:58:46 +02:00			`#include "arc4random_win.h"`
produce a error if platform has no arc4random hook ok deraadt@ beck@ 2014-07-29 03:57:43 +02:00
			`#else`
			`#error "No arc4random hooks defined for this platform."`

update to newly-refactored arc4random compatibility shims the thread-private bits can move next ok beck@ 2014-07-18 06:58:46 +02:00			`#endif`

wrap arc4random header ok @doug 2014-10-30 16:52:29 +01:00			`#endif`