wireguard-openbsd/sys/arch/alpha, branch jd/queueboosts WireGuard implementation for the OpenBSD kernel https://git.zx2c4.com/wireguard-openbsd/atom/sys/arch/alpha?h=jd%2Fqueueboosts 2020-06-05T14:25:05Z Implement cpu_rnd_messybits() as a read of the cycle counter register. 2020-06-05T14:25:05Z naddy naddy@openbsd.org 2020-06-05T14:25:05Z urn:sha1:4f1155a8e1b8d56b62802304c62b79d4e918eb9a ok dlg@, powerpc/sparc64 ok kettenis@, sparc64/alpha tested by deraadt@ introduce "cpu_rnd_messybits" for use instead of nanotime in dev/rnd.c. 2020-05-31T06:23:56Z dlg dlg@openbsd.org 2020-05-31T06:23:56Z urn:sha1:01802d2cc63d886227ab3b39e923ff13cf516166 rnd.c uses nanotime to get access to some bits that change quickly between events that it can mix into the entropy pool. it doesn't use nanotime to get a monotonically increasing set or ordered and accurate timestamps, it just wants something with bits that change. there's been discussions for years about letting rnd use a clock that's super fast to read, but not necessarily accurate, but it wasn't until recently that i figured out it wasn't interested in time at all, so things like keeping a fast clock coherent between cpu cores or correct according to ntp is unecessary. this means we can just let rnd read the cycle counters on cpus and things will be fine. cpus with cycle counters that vary in their speed and arent kept consistent between cores may even be desirable in this context. so this is the first step in converting rnd.c to reading cycle counter. it copies the nanotime backend to each arch, and they can replace it with something MD as a second step later on. djm@ suggested rnd_messybytes, but we landed on cpu_rnd_messybits. thanks to visa for his eyes. ok deraadt@ visa@ deraadt@ says he will help handle any MD fallout that occurs. dev/rndvar.h no longer has statistical interfaces (removed during various 2020-05-29T04:42:23Z deraadt deraadt@openbsd.org 2020-05-29T04:42:23Z urn:sha1:c8f27247b9f5f282483daaddbfd1267ad73569c5 conversion steps). it only contains kernel prototypes for 4 interfaces, all of which legitimately belong in sys/systm.h, which are already included by all enqueue_randomness() users. Retire <machine/varargs.h>. 2020-05-27T15:16:04Z visa visa@openbsd.org 2020-05-27T15:16:04Z urn:sha1:9df0f941a91e9f67cc4e63514cb174cb2a5783fd Nothing uses the header anymore. OK deraadt@ mpi@ /etc/random.seed reuse can now be detected. The stat +T bit marks the file 2020-05-26T13:47:27Z deraadt deraadt@openbsd.org 2020-05-26T13:47:27Z urn:sha1:e4a6744d811c9dacc6cbd14518ea6671acce58e9 (fchmod +T by bootcode, chmod 600 by /etc/rc). If the seed is reused, and HWRNG isn't available, the kernel won't get RB_GOODSEED indication... make loadrandom() return 0 for success, -1 for failure. While here, 2020-05-25T15:49:41Z deraadt deraadt@openbsd.org 2020-05-25T15:49:41Z urn:sha1:a872426c0e19cd2db852b132ac3ba4865f303e4a relax the fstat() check because the system will have left the file in the right mode. ok visa kettenis Pass boothowto from bootblock to kernel 2020-05-25T15:00:22Z deraadt deraadt@openbsd.org 2020-05-25T15:00:22Z urn:sha1:c2afdefe37f83deee120e110e5e299de81813289 Add support for write operations to diskstrategy(). 2020-05-25T02:04:48Z deraadt deraadt@openbsd.org 2020-05-25T02:04:48Z urn:sha1:77b219e0ed44c82d1eade27be3a0a0910c0035b1 remove ifdef'd out tc fb cnattach bits 2020-05-23T08:40:55Z jsg jsg@openbsd.org 2020-05-23T08:40:55Z urn:sha1:8151741673711c48340cfc872d9779b0327adbb2 miod@ agrees this can go remove more cfb and sfb bits 2020-05-23T06:28:29Z jsg jsg@openbsd.org 2020-05-23T06:28:29Z urn:sha1:998fd26cd35836de5ded8468ae9e096a47a23f66