Module Name: src
Committed By: riastradh
Date: Mon Aug 26 15:50:15 UTC 2024
Modified Files:
src/sys/kern: kern_entropy.c
Log Message:
entropy(9): Allow unprivileged reads of sysctl kern.entropy.epoch.
Applications need this in order to know when to reseed. (We should
also expose it through a page shared read-only with userland for
cheaper access, but until we do, let's let applications get at it
through sysctl.)
PR kern/58632: getentropy(2) and arc4random(3) do not reseed on VM
fork
To generate a diff of this commit:
cvs rdiff -u -r1.70 -r1.71 src/sys/kern/kern_entropy.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/kern/kern_entropy.c
diff -u src/sys/kern/kern_entropy.c:1.70 src/sys/kern/kern_entropy.c:1.71
--- src/sys/kern/kern_entropy.c:1.70 Mon Aug 26 13:52:56 2024
+++ src/sys/kern/kern_entropy.c Mon Aug 26 15:50:15 2024
@@ -1,4 +1,4 @@
-/* $NetBSD: kern_entropy.c,v 1.70 2024/08/26 13:52:56 riastradh Exp $ */
+/* $NetBSD: kern_entropy.c,v 1.71 2024/08/26 15:50:15 riastradh Exp $ */
/*-
* Copyright (c) 2019 The NetBSD Foundation, Inc.
@@ -77,7 +77,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.70 2024/08/26 13:52:56 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: kern_entropy.c,v 1.71 2024/08/26 15:50:15 riastradh Exp $");
#include <sys/param.h>
#include <sys/types.h>
@@ -400,7 +400,7 @@ entropy_init(void)
SYSCTL_DESCR("Number of samples pending on CPUs"),
NULL, 0, &E->samplespending, 0, CTL_CREATE, CTL_EOL);
sysctl_createv(&entropy_sysctllog, 0, &entropy_sysctlroot, NULL,
- CTLFLAG_PERMANENT|CTLFLAG_READONLY|CTLFLAG_PRIVATE, CTLTYPE_INT,
+ CTLFLAG_PERMANENT|CTLFLAG_READONLY, CTLTYPE_INT,
"epoch", SYSCTL_DESCR("Entropy epoch"),
NULL, 0, &E->epoch, 0, CTL_CREATE, CTL_EOL);
