openbsd/src/lib/libc/crypt/bcrypt.c, branch OPENBSD_7_9_BASE A mirror of https://github.com/libressl/openbsd.git https://git.lua4.win/openbsd/atom?h=OPENBSD_7_9_BASE 2020-07-06T13:33:06+00:00 Add support for timeconting in userland. 2020-07-06T13:33:06+00:00 pirofti 2020-07-06T13:33:06+00:00 urn:sha1:0320e8b397405d62725b086d54c65caf0669f919 This diff exposes parts of clock_gettime(2) and gettimeofday(2) to userland via libc eliberating processes from the need for a context switch everytime they want to count the passage of time. If a timecounter clock can be exposed to userland than it needs to set its tc_user member to a non-zero value. Tested with one or multiple counters per architecture. The timing data is shared through a pointer found in the new ELF auxiliary vector AUX_openbsd_timekeep containing timehands information that is frequently updated by the kernel. Timing differences between the last kernel update and the current time are adjusted in userland by the tc_get_timecount() function inside the MD usertc.c file. This permits a much more responsive environment, quite visible in browsers, office programs and gaming (apparently one is are able to fly in Minecraft now). Tested by robert@, sthen@, naddy@, kmos@, phessler@, and many others! OK from at least kettenis@, cheloha@, naddy@, sthen@ Pull in <time.h> for clock_gettime() 2016-08-26T08:25:02+00:00 guenther 2016-08-26T08:25:02+00:00 urn:sha1:ea152cc7a0da6c58c7e582039cdd13fa86397bbc ok deraadt@ increase the minimum for auto rounds to 6. that was the previous low bound 2016-06-26T21:04:08+00:00 tedu 2016-06-26T21:04:08+00:00 urn:sha1:d33e996eb7c6b7d4569a9accf40b58698657f85e for login.conf, and we don't want to go lower. Wrap <pwd.h> so that calls go direct and the symbols are all weak. 2015-09-13T15:33:48+00:00 guenther 2015-09-13T15:33:48+00:00 urn:sha1:5f424ba084ead7e716a6e98064fa03a19a93a9ac Hide bcrypt_autorounds(), prefixing with an underbar for static builds. The number of rounds is just two digits in the salt. We've already 2015-09-13T12:42:39+00:00 millert 2015-09-13T12:42:39+00:00 urn:sha1:629b11ace4d06660bae04ea3e03ea2fe9455d522 verified that they are there via isdigit() so we can convert from ASCII to an int without using atoi(). OK guenther@ deraadt@ standards compliant error return (null). will make ruby happier, at least. 2015-07-18T00:56:37+00:00 tedu 2015-07-18T00:56:37+00:00 urn:sha1:c83921549ea7a344ae087bbfc5bb0ef0bc4aa6be ok deraadt jeremy dial the time back to about 0.1s, closer to the original targets and 2015-01-28T23:33:52+00:00 tedu 2015-01-28T23:33:52+00:00 urn:sha1:a4e5c13d2841ff2068bd14c20cd2c1e3eaa4f13c friendlier for users. requested by deraadt rename blocks to words. bcrypt "blocks" are unrelated to blowfish blocks, 2015-01-12T03:20:04+00:00 tedu 2015-01-12T03:20:04+00:00 urn:sha1:d8fbc422dcf8766c771862d297d34685d1e22165 nor are they the same size. stupid me. need errno.h 2015-01-07T16:05:28+00:00 tedu 2015-01-07T16:05:28+00:00 urn:sha1:5282bd792194ddb587b2f145fd803075de55f024 set errno = EINVAL for invalid salts and hashes in most functions. 2015-01-07T15:46:23+00:00 tedu 2015-01-07T15:46:23+00:00 urn:sha1:e940bceab13a32c9af44d3254ff07896ccc2343e remember to set EACCES in bcrypt_checkpass for hash differences. the higher level crypt_checkpass function will reset errno to EACCES in all cases, which is probably the right behavior, but this change gives code working with the lower level functions the correct errno if they care.