Conrad Meyer db488e4f52 random(4): Poll for signals during large reads ... Occasionally poll for signals during large reads of the /dev/u?random devices. This allows cancellation via SIGINT of accidental invocations of very large reads. (A 2GB /dev/random read, which takes about 10 seconds on my 2017 AMD Zen processor, can be aborted.) I believe this behavior was intended since 2014 (r273997), just not fully implemented. This is motivated by a potential getrandom(2) interface that may not explicitly forbid extremely large reads on 64-bit platforms -- even larger than the 2GB limit imposed on devfs I/O by default. Such reads, if they are to be allowed, should be cancellable by the user or administrator. Reviewed by: delphij Approved by: secteam (delphij) Sponsored by: Dell EMC Isilon Differential Revision: https://reviews.freebsd.org/D14684		2018-03-16 18:50:26 +00:00
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build.sh	Replace sys/crypto/sha2/sha2.c with lib/libmd/sha512c.c	2015-12-27 17:33:59 +00:00
fortuna.c	random(4): Discard low entropy inputs	2017-10-06 18:27:55 +00:00
fortuna.h
hash.c	Replace sys/crypto/sha2/sha2.c with lib/libmd/sha512c.c	2015-12-27 17:33:59 +00:00
hash.h
ivy.c	Fix rdrand_rng.ko and padlock_rng.ko dependencies, making modules	2016-04-16 06:10:47 +00:00
nehemiah.c	Remove unused error return from API that cannot fail	2018-02-23 20:15:19 +00:00
other_algorithm.c	Replace sys/crypto/sha2/sha2.c with lib/libmd/sha512c.c	2015-12-27 17:33:59 +00:00
other_algorithm.h
random_harvestq.c	random(4): Add CCP random source definitions	2018-01-16 02:56:27 +00:00
random_harvestq.h	Replace the RC4 algorithm for generating in-kernel secure random	2017-04-16 09:11:02 +00:00
random_infra.c
randomdev.c	random(4): Poll for signals during large reads	2018-03-16 18:50:26 +00:00
randomdev.h
uint128.h
unit_test.c	Replace sys/crypto/sha2/sha2.c with lib/libmd/sha512c.c	2015-12-27 17:33:59 +00:00
unit_test.h
yarrow.c	dev/random: minor spelling fixes in comments.	2016-05-02 14:35:57 +00:00
yarrow.h