From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephan Mueller Subject: [PATCH] crypto: Jitter RNG - use ktime_get_raw_ns as fallback Date: Tue, 21 Jun 2016 20:05:59 +0200 Message-ID: <8242305.3NQCWfJAlD@positron.chronox.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Cc: Kees Cook , Arnd Bergmann , Alexander Kuleshov , y2038 Mailman List , linux-kernel@vger.kernel.org, John Stultz , linux-crypto@vger.kernel.org, "David S. Miller" To: herbert@gondor.apana.org.au Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: y2038-bounces@lists.linaro.org Sender: "Y2038" List-Id: linux-crypto.vger.kernel.org QXMgcGFydCBvZiB0aGUgWTIwMzggZGV2ZWxvcG1lbnQsIF9fZ2V0bnN0aW1lb2ZkYXkgaXMgbm90 IHN1cHBvc2VkIHRvIGJlCnVzZWQgYW55IG1vcmUuIEl0IGlzIG5vdyByZXBsYWNlZCB3aXRoIGt0 aW1lX2dldF9yYXdfbnMuIEFsYmVpdAprdGltZV9nZXRfcmF3X25zIGlzIG1vbm90b25pYyBjb21w YXJlZCB0byBfX2dldG5zdGltZW9mZGF5LCB0aGlzCmRpZmZlcmVuY2UgaXMgaXJyZWxldmFudCBh cyB0aGUgSml0dGVyIFJORyB1c2VzIHRoZSB0aW1lIHN0YW1wIHRvCm1lYXN1cmUgdGhlIGV4ZWN1 dGlvbiB0aW1lIG9mIGEgZ2l2ZW4gY29kZSBwYXRoIGFuZCB0cmllcyB0byBkZXRlY3QKdmFyaWF0 aW9ucyBpbiB0aGUgZXhlY3V0aW9uIHRpbWUuIFRoZXJlZm9yZSwgdGhlIG9ubHkgcmVxdWlyZW1l bnQgdGhlCkppdHRlciBSTkcgaGFzLCBpcyBhIHN1ZmZpY2llbnQgaGlnaCByZXNvbHV0aW9uIHRv IGRldGVjdCB0aGVzZQp2YXJpYXRpb25zLgoKVGhlIGNoYW5nZSB3YXMgdGVzdGVkIG9uIHg4NiB0 byBzaG93IGFuIGlkZW50aWNhbCBiZWhhdmlvciBhcyBSRFRTQy4gVGhlCnVzZWQgdGVzdCBjb2Rl IHNpbXBseSBtZWFzdXJlcyB0aGUgZXhlY3V0aW9uIHRpbWUgb2YgdGhlIGhlYXJ0IG9mIHRoZQpS Tkc6CgoJamVudF9nZXRfbnN0aW1lKCZ0aW1lKTsKCWplbnRfbWVtYWNjZXNzKGVjLCBtaW4pOwoJ amVudF9mb2xkX3RpbWUoTlVMTCwgdGltZSwgJmZvbGRlZCwgbWluKTsKCWplbnRfZ2V0X25zdGlt ZSgmdGltZTIpOwoJcmV0dXJuICgodGltZTIgLSB0aW1lKSk7CgpTaWduZWQtb2ZmLWJ5OiBTdGVw aGFuIE11ZWxsZXIgPHNtdWVsbGVyQGNocm9ub3guZGU+Ci0tLQogY3J5cHRvL2ppdHRlcmVudHJv cHkta2NhcGkuYyB8IDIzICsrKysrKysrKysrKysrLS0tLS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwg MTQgaW5zZXJ0aW9ucygrKSwgOSBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS9jcnlwdG8vaml0 dGVyZW50cm9weS1rY2FwaS5jIGIvY3J5cHRvL2ppdHRlcmVudHJvcHkta2NhcGkuYwppbmRleCA1 OTdjZWRkLi42OWEyOTg4IDEwMDY0NAotLS0gYS9jcnlwdG8vaml0dGVyZW50cm9weS1rY2FwaS5j CisrKyBiL2NyeXB0by9qaXR0ZXJlbnRyb3B5LWtjYXBpLmMKQEAgLTg3LDI0ICs4NywyOSBAQCB2 b2lkIGplbnRfbWVtY3B5KHZvaWQgKmRlc3QsIGNvbnN0IHZvaWQgKnNyYywgdW5zaWduZWQgaW50 IG4pCiAJbWVtY3B5KGRlc3QsIHNyYywgbik7CiB9CiAKKy8qCisgKiBPYnRhaW4gYSBoaWdoLXJl c29sdXRpb24gdGltZSBzdGFtcCB2YWx1ZS4gVGhlIHRpbWUgc3RhbXAgaXMgdXNlZCB0byBtZWFz dXJlCisgKiB0aGUgZXhlY3V0aW9uIHRpbWUgb2YgYSBnaXZlbiBjb2RlIHBhdGggYW5kIGl0cyB2 YXJpYXRpb25zLiBIZW5jZSwgdGhlIHRpbWUKKyAqIHN0YW1wIG11c3QgaGF2ZSBhIHN1ZmZpY2ll bnRseSBoaWdoIHJlc29sdXRpb24uIEl0IGlzIHZhbGlkIGlmIHRoZSB0aW1lCisgKiBydW5zIGJh Y2t3YXJkcyBmb3Igc2hvcnQgcGVyaW9kIG9mIHRpbWUgYXMgdGhlIFJORyBjb2RlIGlzIGFibGUg aGFuZGxlIHRoYXQuCisgKgorICogTm90ZSwgaWYgdGhlIGZ1bmN0aW9uIHJldHVybnMgemVybyBi ZWNhdXNlIGEgZ2l2ZW4gYXJjaGl0ZWN0dXJlIGRvZXMgbm90CisgKiBpbXBsZW1lbnQgYSBoaWdo LXJlc29sdXRpb24gdGltZSBzdGFtcCwgdGhlIFJORyBjb2RlJ3MgcnVudGltZSB0ZXN0CisgKiB3 aWxsIGRldGVjdCBpdCBhbmQgd2lsbCBub3QgcHJvZHVjZSBvdXRwdXQuCisgKi8KIHZvaWQgamVu dF9nZXRfbnN0aW1lKF9fdTY0ICpvdXQpCiB7Ci0Jc3RydWN0IHRpbWVzcGVjIHRzOwogCV9fdTY0 IHRtcCA9IDA7CiAKIAl0bXAgPSByYW5kb21fZ2V0X2VudHJvcHkoKTsKIAogCS8qCi0JICogSWYg cmFuZG9tX2dldF9lbnRyb3B5IGRvZXMgbm90IHJldHVybiBhIHZhbHVlICh3aGljaCBpcyBwb3Nz aWJsZSBvbiwKLQkgKiBmb3IgZXhhbXBsZSwgTUlQUyksIGludm9rZSBfX2dldG5zdGltZW9mZGF5 CisJICogSWYgcmFuZG9tX2dldF9lbnRyb3B5IGRvZXMgbm90IHJldHVybiBhIHZhbHVlLCBpLmUu IGl0IGlzIG5vdAorCSAqIGltcGxlbWVudGVkIGZvciBhIGdpdmVuIGFyY2hpdGVjdHVyZSwgaW52 b2tlIGt0aW1lX2dldF9yYXdfbnMKIAkgKiBob3BpbmcgdGhhdCB0aGVyZSBhcmUgdGltZXJzIHdl IGNhbiB3b3JrIHdpdGguCiAJICovCi0JaWYgKCgwID09IHRtcCkgJiYKLQkgICAoMCA9PSBfX2dl dG5zdGltZW9mZGF5KCZ0cykpKSB7Ci0JCXRtcCA9IHRzLnR2X3NlYzsKLQkJdG1wID0gdG1wIDw8 IDMyOwotCQl0bXAgPSB0bXAgfCB0cy50dl9uc2VjOwotCX0KKwlpZiAodG1wID09IDApCisJCXRt cCA9IGt0aW1lX2dldF9yYXdfbnMoKTsKIAogCSpvdXQgPSB0bXA7CiB9Ci0tIAoyLjUuNQoKCl9f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClkyMDM4IG1haWxp bmcgbGlzdApZMjAzOEBsaXN0cy5saW5hcm8ub3JnCmh0dHBzOi8vbGlzdHMubGluYXJvLm9yZy9t YWlsbWFuL2xpc3RpbmZvL3kyMDM4Cg==