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[src/trunk]: src/sys/netipsec Describe constraints of key_sp_ref and key_sp_u...
details: https://anonhg.NetBSD.org/src/rev/74fd0568aa44
branches: trunk
changeset: 825930:74fd0568aa44
user: ozaki-r <ozaki-r%NetBSD.org@localhost>
date: Mon Aug 07 03:30:45 2017 +0000
description:
Describe constraints of key_sp_ref and key_sp_unref
Requested by riastradh@
diffstat:
sys/netipsec/key.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diffs (40 lines):
diff -r 05c95b2faa0a -r 74fd0568aa44 sys/netipsec/key.c
--- a/sys/netipsec/key.c Mon Aug 07 03:28:31 2017 +0000
+++ b/sys/netipsec/key.c Mon Aug 07 03:30:45 2017 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: key.c,v 1.210 2017/08/07 03:28:31 ozaki-r Exp $ */
+/* $NetBSD: key.c,v 1.211 2017/08/07 03:30:45 ozaki-r Exp $ */
/* $FreeBSD: src/sys/netipsec/key.c,v 1.3.2.3 2004/02/14 22:23:23 bms Exp $ */
/* $KAME: key.c,v 1.191 2001/06/27 10:46:49 sakane Exp $ */
@@ -32,7 +32,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: key.c,v 1.210 2017/08/07 03:28:31 ozaki-r Exp $");
+__KERNEL_RCSID(0, "$NetBSD: key.c,v 1.211 2017/08/07 03:30:45 ozaki-r Exp $");
/*
* This code is referd to RFC 2367
@@ -1309,6 +1309,10 @@
SPLIST_ENTRY_INIT(sp);
}
+/*
+ * Must be called in a pserialize critical section. A held SP
+ * must be released by key_sp_unref after use.
+ */
void
key_sp_ref(struct secpolicy *sp, const char* where, int tag)
{
@@ -1320,6 +1324,10 @@
sp, sp->id, where, tag, key_sp_refcnt(sp));
}
+/*
+ * Must be called without holding key_spd.lock because the lock
+ * would be held in localcount_release.
+ */
void
key_sp_unref(struct secpolicy *sp, const char* where, int tag)
{
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