On Wed, 2018-03-21 at 01:15 +0000, Conrad Meyer wrote: > Author: cem > Date: Wed Mar 21 01:15:45 2018 > New Revision: 331279 > URL: https://svnweb.freebsd.org/changeset/base/331279 > > Log: > Implement getrandom(2) and getentropy(3) > > The general idea here is to provide userspace programs with well- > defined > sources of entropy, in a fashion that doesn't require opening a new > file > descriptor (ulimits) or accessing paths (/dev/urandom may be > restricted > by chroot or capsicum). > > getrandom(2) is the more general API, and comes from the Linux > world. > Since our urandom and random devices are identical, the GRND_RANDOM > flag > is ignored. > > getentropy(3) is added as a compatibility shim for the OpenBSD API. > > truss(1) support is included. > > Tests for both system calls are provided. Coverage is believed to > be at > least as comprehensive as LTP getrandom(2) test > coverage. Additionally, > instructions for running the LTP tests directly against FreeBSD are > provided > in the "Test Plan" section of the Differential revision linked > below. (They > pass, of course.) > > PR: 194204 > Reported by: David CARLIER <david.carlier AT > hardenedbsd.org> > Discussed with: cperciva, delphij, jhb, markj > Relnotes: maybe > Differential Revision: https://reviews.freebsd.org/D14500 >
A good followup to this might be to switch libc's arc4random seeding to getrandom(), instead of using a sysctl in a loop. -- Ian _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
