Commit Graph

12 Commits

Author SHA1 Message Date
Adam Langley
5ede28c8a4 Tighten up getrandom handling.
While I don't believe EINTR can occur with a non-blocking getrandom call
when talking to the kernel directly, that may not be true when certain
sandboxing systems are being used.

Additionally, with this change we will no longer silently ignore errors
other than ENOSYS.

Update-Note: update internal bug 115344138.

Change-Id: I952c132cf325dcc17dc38e68f054abc41de1f8b0
Reviewed-on: https://boringssl-review.googlesource.com/32006
Reviewed-by: David Benjamin <davidben@google.com>
2018-09-20 16:15:51 +00:00
Adam Langley
03de6813d8 Write error messages in the FIPS module to stderr.
Previously, delocate.go couldn't handle GOT references and so |stderr|
was a problematic symbol. We can cope with them now, so write FIPS
power-on test and urandom errors to stderr rather than stdout.

Change-Id: If6d7c19ee5f22dcbd74fb01c231500c2e130e6f7
Update-note: resolves internal bug 110102292.
Reviewed-on: https://boringssl-review.googlesource.com/29244
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2018-06-25 10:30:42 +00:00
Adam Langley
7d1f35985b Show an error before we abort the process for an entropy failure.
Change-Id: I8d8483d38de15dcde18141bb9cc9e79d585d24ad
Reviewed-on: https://boringssl-review.googlesource.com/27045
Reviewed-by: Adam Langley <agl@google.com>
2018-05-11 22:30:24 +00:00
Peter Wu
2c46c10631 Fix build when linux-headers are not installed.
linux/random.h is not really needed if FIPS mode is not enabled. Note
that use of the getrandom syscall is unaffected by this header.

Fixes commit bc7daec4d8

Change-Id: Ia367aeffb3f2802ba97fd1507de0b718d9ac2c55
Reviewed-on: https://boringssl-review.googlesource.com/19644
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-24 00:35:05 +00:00
David Benjamin
808f832917 Run the comment converter on libcrypto.
crypto/{asn1,x509,x509v3,pem} were skipped as they are still OpenSSL
style.

Change-Id: I3cd9a60e1cb483a981aca325041f3fbce294247c
Reviewed-on: https://boringssl-review.googlesource.com/19504
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-08-18 21:49:04 +00:00
David Benjamin
7d53638872 Use __NR_getrandom rather than SYS_getrandom.
The former is defined by the kernel and is a straightforward number. The
latter is defined by glibc as:

  #define SYS_getrandom __NR_getrandom

which does not work when kernel headers are older than glibc headers.
Instead, use the kernel values.

Bug: chromium:742260
Change-Id: Id162f125db660643269e0b1329633437048575c4
Reviewed-on: https://boringssl-review.googlesource.com/17864
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-07-18 16:28:41 +00:00
Adam Langley
f64a6eeaf0 Switch to new delocate tool.
Most importantly, this version of delocate works for ppc64le. It should
also work for x86-64, but will need significant testing to make sure
that it covers all the cases that the previous delocate.go covered.

It's less stringtastic than the old code, however the parser isn't as
nice as I would have liked. I thought that the reason we put up with
AT&T syntax with Intel is so that assembly syntax could be somewhat
consistent across platforms. At least for ppc64le, that does not appear
to be the case.

Change-Id: Ic7e3c6acc3803d19f2c3ff5620c5e39703d74212
Reviewed-on: https://boringssl-review.googlesource.com/16464
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-05-30 18:00:16 +00:00
Martin Kreichgauer
866c219432 crypto/fipsmodule: Allow breaking CRNG self-test.
Change-Id: I3d1ddc8cca9fb1da5d0b6a68ba2125c89e5bc0ce
Reviewed-on: https://boringssl-review.googlesource.com/16304
Commit-Queue: Martin Kreichgauer <martinkr@google.com>
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-05-12 18:43:09 +00:00
Matthew Braithwaite
20d202bb0e unrandom: #define _GNU_SOURCE, for syscall().
This is needed when unrandom.c is compiled on its own.

Change-Id: Ia46e06d267c097e5fa0296092a7270a4cd0b2044
Reviewed-on: https://boringssl-review.googlesource.com/16085
Commit-Queue: Adam Langley <agl@google.com>
Reviewed-by: Adam Langley <agl@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-05-09 17:41:17 +00:00
Michael Ryleev
a90044a463 Bypass building fipsmodule/rand/urandom.c when builing for Trusty
Change-Id: Icf1d6ec9d3fb33a124a9f61c75d29248a2582680
Reviewed-on: https://boringssl-review.googlesource.com/15964
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-05-05 17:21:23 +00:00
Adam Langley
c88f24596c Don't print message when waiting for urandom entropy.
This doesn't actually measure what we need(*) and, because of that, it's
way more noisy than expected.

(*) We want to know whether the pool has been initialised, not whether
it currently thinks it has a lot of bits, but we can't get what we want
without getrandom() support in the kernel.

Change-Id: I20accb99a592739c786a25c1656aeea050ae81a3
Reviewed-on: https://boringssl-review.googlesource.com/15624
Reviewed-by: David Benjamin <davidben@google.com>
Commit-Queue: David Benjamin <davidben@google.com>
CQ-Verified: CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org>
2017-04-27 21:38:21 +00:00
Adam Langley
7784104dd8 Move much of rand/ into the FIPS module.
Support for platforms that we don't support FIPS on doesn't need to be
in the module. Also, functions for dealing with whether fork-unsafe
buffering is enabled are left out because they aren't implementing any
cryptography and they use global r/w state, making their inclusion
painful.

Change-Id: I71a0123db6f5449e9dfc7ec7dea0944428e661aa
Reviewed-on: https://boringssl-review.googlesource.com/15084
Reviewed-by: Adam Langley <agl@google.com>
2017-04-21 22:03:18 +00:00