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authorBrian Behlendorf <behlendorf1@llnl.gov>2018-01-12 09:36:26 -0800
committerGitHub <noreply@github.com>2018-01-12 09:36:26 -0800
commite1a0850c3570ae53df5779bc656f17b98b86f160 (patch)
treed17b3ab882718b22d049cd07e7581eda2f76af7a /lib
parent6df9f8ebd73c05da627144bcc3823e6fe980cd75 (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 <tim@chase2k.com> Reviewed by: Thomas Caputi <tcaputi@datto.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #7017 Closes #7036
Diffstat (limited to 'lib')
-rw-r--r--lib/libzpool/kernel.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/lib/libzpool/kernel.c b/lib/libzpool/kernel.c
index c4b600d03..09e69ef6d 100644
--- a/lib/libzpool/kernel.c
+++ b/lib/libzpool/kernel.c
@@ -907,13 +907,15 @@ lowbit64(uint64_t i)
return (__builtin_ffsll(i));
}
+char *random_path = "/dev/random";
+char *urandom_path = "/dev/urandom";
static int random_fd = -1, urandom_fd = -1;
void
random_init(void)
{
- VERIFY((random_fd = open("/dev/random", O_RDONLY)) != -1);
- VERIFY((urandom_fd = open("/dev/urandom", O_RDONLY)) != -1);
+ VERIFY((random_fd = open(random_path, O_RDONLY)) != -1);
+ VERIFY((urandom_fd = open(urandom_path, O_RDONLY)) != -1);
}
void