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authorMark Murray <markm@FreeBSD.org>2013-10-06 09:55:28 +0000
committerMark Murray <markm@FreeBSD.org>2013-10-06 09:55:28 +0000
commit095ed2c9f3c7ccbed16363d600ec6ad1c25a8804 (patch)
tree62bd76f5e2f9f64639531f96df64626d889df1db /sys/dev/random/randomdev.c
parent12babbf2199a73f505e929a35a13cf88d1b38022 (diff)
Notes
Diffstat (limited to 'sys/dev/random/randomdev.c')
-rw-r--r--sys/dev/random/randomdev.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/sys/dev/random/randomdev.c b/sys/dev/random/randomdev.c
index 990324e14d5b0..f37da70c12651 100644
--- a/sys/dev/random/randomdev.c
+++ b/sys/dev/random/randomdev.c
@@ -52,9 +52,11 @@ __FBSDID("$FreeBSD$");
#include <machine/bus.h>
#include <machine/cpu.h>
+#include <dev/random/randomdev.h>
+#include <dev/random/randomdev_soft.h>
#include <dev/random/random_adaptors.h>
+#include <dev/random/random_harvestq.h>
#include <dev/random/live_entropy_sources.h>
-#include <dev/random/randomdev.h>
#define RANDOM_MINOR 0
@@ -72,6 +74,8 @@ static struct cdevsw random_cdevsw = {
.d_name = "random",
};
+MALLOC_DEFINE(M_ENTROPY, "entropy", "Entropy harvesting buffers");
+
/* For use with make_dev(9)/destroy_dev(9). */
static struct cdev *random_dev;
@@ -82,10 +86,6 @@ random_read(struct cdev *dev __unused, struct uio *uio, int flag)
int c, error = 0;
void *random_buf;
- /* XXX: Harvest some entropy from live entropy sources, if available */
- live_entropy_sources_feed(65); /* 65 is meaningless --
- need to decide appropriate value */
-
/* Blocking logic */
if (!random_adaptor->seeded)
error = (*random_adaptor->block)(flag);
@@ -93,7 +93,7 @@ random_read(struct cdev *dev __unused, struct uio *uio, int flag)
/* The actual read */
if (!error) {
- random_buf = (void *)malloc(PAGE_SIZE, M_TEMP, M_WAITOK);
+ random_buf = (void *)malloc(PAGE_SIZE, M_ENTROPY, M_WAITOK);
while (uio->uio_resid > 0 && !error) {
c = MIN(uio->uio_resid, PAGE_SIZE);
@@ -104,7 +104,7 @@ random_read(struct cdev *dev __unused, struct uio *uio, int flag)
* optional housekeeping */
(*random_adaptor->read)(NULL, 0);
- free(random_buf, M_TEMP);
+ free(random_buf, M_ENTROPY);
}