openbsd/src/lib/libcrypto/arc4random/getentropy_linux.c, branch OPENBSD_6_8_BASE A mirror of https://github.com/libressl/openbsd.git https://git.lua4.win/openbsd/atom?h=OPENBSD_6_8_BASE 2020-05-17T14:44:20+00:00 As done everywhere else, use a local version of MINIMUM() and avoid 2020-05-17T14:44:20+00:00 deraadt 2020-05-17T14:44:20+00:00 urn:sha1:032a35a73bdeb0ea0007bfc5219e6c96db991681 conflict against a potential define min() from some other scope. Saw a mention somewhere a while back that the gotdata() function in 2018-11-20T08:04:28+00:00 deraadt 2018-11-20T08:04:28+00:00 urn:sha1:1c9e20cbc776ff1a1ba01d20a3d7ae740718e16e here could creates non-uniformity since very short fetches of 0 would be excluded. blocks of 0 are just as random as any other data, including blocks of 4 4 4.. This is a misguided attempt to identify errors from the entropy churn/gather code doesn't make sense, errors don't happen. ok bcook ensure SYS_getrandom and GRND_NONBLOCK are both defined before using getrandom(2) 2018-03-13T22:53:28+00:00 bcook 2018-03-13T22:53:28+00:00 urn:sha1:302371947c6242ab9f7f993a57b4b413756adb5c Based on discussion here https://github.com/libressl-portable/openbsd/pull/82 Suggested fix from jsing@ Switch Linux getrandom() usage to non-blocking mode, continuing to 2017-04-29T18:43:31+00:00 beck 2017-04-29T18:43:31+00:00 urn:sha1:06e58ee3d445df182278c56c23d0bf1aec820070 use fallback mechanims if unsuccessful. The design of Linux getrandom is broken. It has an uninitialized phase coupled with blocking behaviour, which is unacceptable from within a library at boot time without possible recovery. ok deraadt@ jsing@ Update the link for the getentropy(2) manual to man.openbsd.org/ 2016-08-07T03:27:21+00:00 tb 2016-08-07T03:27:21+00:00 urn:sha1:45a99457661a695d9e6070e26d9383b3a955a536 ok deraadt@ fix typo in comment; ok beck 2016-04-19T20:20:24+00:00 tj 2016-04-19T20:20:24+00:00 urn:sha1:86631535ec5e92d1d055ad8b03986f6dc52cc4d7 unify files further 2015-09-11T11:52:55+00:00 deraadt 2015-09-11T11:52:55+00:00 urn:sha1:2a8f39dde4eb3fc8b492e8c665128c557ff500af unify versions, so they are easier to diff. 2015-08-25T17:26:43+00:00 deraadt 2015-08-25T17:26:43+00:00 urn:sha1:fc3d3d60211a42640c6c2273a1d4edf9901f1492 Remove unneeded sys/sysctl.h on linux. 2015-06-13T02:33:58+00:00 bcook 2015-06-13T02:33:58+00:00 urn:sha1:7046960ffae4141275822862cb7065584b59d3ae This only provides the sysctl wrapper in glibc, which we do not use and is not available in other libc implementations for Linux. Thanks to ncopa from github. Not all Linux libc's include linux/sysctl.h in sys/sysctl.h. 2015-04-27T03:37:06+00:00 bcook 2015-04-27T03:37:06+00:00 urn:sha1:29b3e8caf044d209b7dcfe76059033f1e5174a65 Include it if we have the sysctl syscall.