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authorLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 08:16:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-08-06 08:16:24 -0700
commitf4f142ed4ef835709c7e6d12eaca10d190bcebed (patch)
treea0bc6850239fe3551bb67f5707bfef153ac437fe /include/linux/syscalls.h
parentbb2cbf5e9367d8598fecd0c48dead69560750223 (diff)
parente02b876597777ab26288dd2611a97b597d14d661 (diff)
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Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull randomness updates from Ted Ts'o: "Cleanups and bug fixes to /dev/random, add a new getrandom(2) system call, which is a superset of OpenBSD's getentropy(2) call, for use with userspace crypto libraries such as LibreSSL. Also add the ability to have a kernel thread to pull entropy from hardware rng devices into /dev/random" * tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random: hwrng: Pass entropy to add_hwgenerator_randomness() in bits, not bytes random: limit the contribution of the hw rng to at most half random: introduce getrandom(2) system call hw_random: fix sparse warning (NULL vs 0 for pointer) random: use registers from interrupted code for CPU's w/o a cycle counter hwrng: add per-device entropy derating hwrng: create filler thread random: add_hwgenerator_randomness() for feeding entropy from devices random: use an improved fast_mix() function random: clean up interrupt entropy accounting for archs w/o cycle counters random: only update the last_pulled time if we actually transferred entropy random: remove unneeded hash of a portion of the entropy pool random: always update the entropy pool under the spinlock
Diffstat (limited to 'include/linux/syscalls.h')
-rw-r--r--include/linux/syscalls.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 1713977..701daff 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -868,4 +868,7 @@ asmlinkage long sys_kcmp(pid_t pid1, pid_t pid2, int type,
asmlinkage long sys_finit_module(int fd, const char __user *uargs, int flags);
asmlinkage long sys_seccomp(unsigned int op, unsigned int flags,
const char __user *uargs);
+asmlinkage long sys_getrandom(char __user *buf, size_t count,
+ unsigned int flags);
+
#endif
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