diff options
| author | Brian Behlendorf <[email protected]> | 2018-01-12 09:36:26 -0800 |
|---|---|---|
| committer | GitHub <[email protected]> | 2018-01-12 09:36:26 -0800 |
| commit | e1a0850c3570ae53df5779bc656f17b98b86f160 (patch) | |
| tree | d17b3ab882718b22d049cd07e7581eda2f76af7a /cmd | |
| parent | 6df9f8ebd73c05da627144bcc3823e6fe980cd75 (diff) | |
Force ztest to always use /dev/urandom
For ztest, which is solely for testing, using a pseudo random
is entirely reasonable. Using /dev/urandom ensures the system
entropy pool doesn't get depleted thus stalling the testing.
This is a particular problem when testing in VMs.
Reviewed-by: Tim Chase <[email protected]>
Reviewed by: Thomas Caputi <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #7017
Closes #7036
Diffstat (limited to 'cmd')
| -rw-r--r-- | cmd/ztest/ztest.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/cmd/ztest/ztest.c b/cmd/ztest/ztest.c index 89ef1c415..f07e11c83 100644 --- a/cmd/ztest/ztest.c +++ b/cmd/ztest/ztest.c @@ -7064,7 +7064,12 @@ main(int argc, char **argv) exit(EXIT_FAILURE); } - ztest_fd_rand = open("/dev/urandom", O_RDONLY); + /* + * Force random_get_bytes() to use /dev/urandom in order to prevent + * ztest from needlessly depleting the system entropy pool. + */ + random_path = "/dev/urandom"; + ztest_fd_rand = open(random_path, O_RDONLY); ASSERT3S(ztest_fd_rand, >=, 0); if (!fd_data_str) { |